February 17, 2025

 

An M 4.2 earthquake was widely and strong felt in the area near New Delhi, India today. NEIC reported intensity V in Delhi at Babarpur and Bawana and Sultanpur Majra; in Haryana at Bahadurgarh, Karnal, in Suratgarh, Rajasthan, Loni and Khanpur, Uttar Pradesh, Punjab, Pakistan. Intensity IV shaking was also felt in India as far as about 200 km from the epicenter.

Residents described the shaking as the worst they have ever felt.

EMSC reported a light earthquake aftershock of M 4.0 was felt in Sareyan, India southeast of the events in Delhi.

EMSC also reported an earthquake about 300 km northwet of the Delhi quake

occurred about 45 seconds later as the p-wave from Delhi was passing through.

EMSC reported this event in Nepal and India border with M 3.9 was felt in the

Surabhi Colony of India and in Jagriti Vihar, India.

 

An earthquake of M 4.0 was also felt in the region near Naples, Italy today.

EMSC reported strong shaking in Bacoli, Pozzuoli, Posillipo, Quarto, Giugliano in Campania, Napoli, Arenella, Parco Mazzola, Portici, Grumo Nevano, Volla.

 

It was accompanied by a series of minor aftershocks. Among these an M 2.9 was

reported by NEIC to have been felt with intensity up to IV in Campania Italy at Calvizzano; III in Casvatore and Naples and II in Anacapri.

An M 3.0 was reported with intensity V in Campania Italy at Pozzuoli; IV in Bacoli and  Quarto and III in Qualiano.

 

NEIC reported an earthquake of M 2.6 in Eastern Los Angeles, California  was felt with  intensity up to III in the area(s) of  Eastern Los Angeles, California  at Ontario, Highland, San Bernardino, Anaheim and II in Carlsbad, Twentynine Palms, Cedarpines Park, Crestline, Moreno Valley and Fullerton.

 

NEIC reported an earthquake of M 4.7 in Oaxaca, Mexico was felt with  intensity up to II-III in the area(s) of Oaxaca, Mexico at Huayapam, Oaxaca and Union Hidalgo.

EMSC reported it was felt strongly in Tiltepec, Mexico.

 

NEIC reported an earthquake of M 5.4 off the coast of Peru  was felt with  intensity up to II-III in the area(s) of Peru at Ica.

 

NEIC reported an earthquake of M 4.9 in Ryukyu Islands, Japan was felt with  intensity up to V in the area(s) of Ryukyu Islands, Japan in Okinawa at Yomitan and II-III in Naha and Gushikawa.

 

NEIC reported an earthquake of M 2.7 in Western Los Angeles, California was felt with  intensity up to III in the area(s) of Western Los Angeles, California at Santa Monica and II in Los Angeles, Malibu, Manhattan Beach, Venice, Marina del Rey, Torrance, Westlake Village, Rialto, Long Beach and Joshua Tree.

 

NEIC reported an earthquake of M 2.5 in Central Maine was felt with  intensity up to II-III in the area(s) of Central Maine at Bangor.

 

NEIC reported an earthquake of M 4.6 in Coquimbo, Chile was felt with  intensity up to II-III in the area(s) of Coquimbo, Chile at La Serena and Ovalle.

CSN reported:

16-02-2025  23:25  30.10S 71.29W  70  4.4    IV   Coquimbo at La Serena, Coquimbo, Paiguano, Punitaqui and III in Ovalle, Andacollo, Vicuna and Monte Patria.

 

NEIC reported an earthquake of M 4.7 in northern Chile was felt with  intensity up to II-III in the area(s) of northern Chile at Iquique, Tarapaca.

EMSC reported light movement in Iquique and Alto Hospicio.

CSN reported:

16-02-2025  21:00  19.43S 69.56W 115  4.6    IV   Arica and Parinacota at Cuya; Tarapaca at Camina, Huara, Mamina, III in Iquique, Alto Hospicio, La Tirana, Pica, Ujina, Chile.

 

NEIC reported an earthquake of M 4.9 in Guatemala was felt with  intensity up to II-III in the area(s) of Guatemala at Guatemala City.

 

NEIC reported an earthquake of M 5.1 in Western Iran was felt with  intensity up to IV in the area(s) of Western Iran at Ahwaz Khuzestan; II in Araq Markazi and possible in Kuwait.

EMSC reported moderate shaking in Iran at Dorud County, Ilam, Esfahan.

A foreshock of M 4.4 was reported lightly felt in Iran in Dorud County and in Hamadan.

 

 

NEIC reported an earthquake of M 2.5 off the coast of northern California was felt with  intensity up to II-III in the area(s) of northern California in Fortuna.

 

NEIC reported an earthquake of M 5.0 in Araucania, Chile was felt with  intensity up to II-III in the area(s) of Araucania, Chile at Temuco and Villarrica and in Valdivia, Los Lagos.

EMSC reported moderate to strong shaking in Chile at Carahue, Temuco, Valdivia and Pucon.

CSN reported:

16-02-2025  07:08  38.48S 74.13W  31  5.4     V   No initial felt reports

 

TROPICAL CYCLONE TALIAH (14S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    TALIAH   2025-02-17  00:00 UT  29.4S   77.8E  050 kts  South Indian Ocean

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 50 kts.  It is expected to track to the west and south over the next several days.  The antipode at 29N 102W is near an active seismic site in western  Texas. It is possible that this area of Texas will see enhanced seismicity while Taliah is active.

 

 

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

4220       0523   0534      0546   C1.9      (February 16, 2025)   6.0E-04  

Kuril Is. M 4.6 05:28 UT

 

4230       0550   0554      0559   C1.9      (February 16, 2025)   6.3E-04  

4240       0608   0612      0618   C1.9      (February 16, 2025)   1.1E-03  

4270       0857   0905      0913   C2.1      (February 16, 2025)   1.9E-03  

Fiji M 4.3 08:58 UT

Argentina M 3.2 08:57 UT

 

4330       1731   1739      1748   C2.2      (February 16, 2025)   2.1E-03  

4340       1832   1838      1847   C6.1      (February 16, 2025)   3.6E-03  

Western Iran M 4.4 18:48 UT,5.1 18:55 UY

Fiji M 4.5 18:38 UT

 

 

4350       1922   1931      1935   C2.0      (February 16, 2025)   1.4E-03  

4360       1942   1949      1954   C1.8      (February 16, 2025)   5.9E-04  

Oaxaca M 3.6 19:42 UT

 

4370       2025   2029      2035   C1.9      (February 16, 2025)   1.1E-03  

Guatemala M 4.9 20:47 UT

Micronesia M 4.6 20:49 UT

Dodecanese M 4.1 20:55 UT

Sumatra M 4.6 20:56 UT

 

 

GEOMAGNETIC FIELD:  unsettled February 19 active February 17-18.  Solar M-flare chance: 45% X-class: 10% proton storm: 5%

 

AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux)    18 28 14 09:00 6 271 185

 

A strong Gamma Ray Burst was recorded by SWIFT on February 7, 2025 at 01:16:07 UT (#250207A).  A preliminary UVOT Magnitude  of V=16.89 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 29, 2025 at 04:45:09 UT (#250129A).  A preliminary UVOT Magnitude  of V=17.24 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 28, 2025 at 16:22:53 UT (#250128B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 14, 2025 at 07:33:19 UT (#250114A).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 8, 2025 at 10:23:06 UT (#250108B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

STRONG EARTHQUAKE IN ALASKA STARTS SERIES IN CENTRAL CALIFORNIA

 

EARTHQUAKE SUMMARY FOR FEBRUARY 13, 2025

 

The strongest earthquake in the world today occurred near local solar noon in the Akhiok area of southern Alaska. NEIC reported it was felt with intensity II in Kodiak, Alaska and possibly Eagle River about 200 km to the northeast. The mainshock in Alaska was preceded nine hour earlier by an M 3.3 foreshock. At M 5.8 this is the strongest earthquake within about 300 km of this epicenter since an M 6.9 on October 11, 2021 and an M 6.8 on May 29, 2015. At the time this summary noted:

 

"A strong earthquake of M 6.8 hit off the Alaska Peninsula today. This is a remote area and there were no reports of major damage or tsunamis with this event. It was  reported felt with intensity IV in Alaska at South Naknek, King Salmon, and II-III in Valdez, Sterling, Soldotna, New Stuyahok, Manokotak, Kodiak, Kenai, Kasilof, Homer, Egegik, Eagle River, Dillingham, Cold Bay, Chugiak, Anchor Point an Anchorage. An aftershock of M 3.6 was felt with intensity II-III in Anchorage and Homer, Alaska. The last earthquake of M>=6.7 within about 200 km of this epicenter occurred as an M 6.8 on July 11, 2000 which, in turn, was an aftershock of an M 7.0 which occurred on December 6, 1999." (May 29, 2015)

 

Forecast 169826 had expected this event in this area was likely around February 16, 2025.

 

O: 13FEB2025 15:05:28  55.7N  154.8W ML=3.3  EMSC   SOUTH OF ALASKA

O: 13FEB2025 23:59:26  55.8N  155.2W MW=5.8  EMSC   SOUTH OF ALASKA               

P: 16FEB2025 169826    54.8N  158.7W 3.5-4.9 BABAA  Alaska Peninsula           

 

 

A moderate earthquake of M 4.2-4.3 was felt in Central California today. NEIC reported it with intensity IV in California at Avenal and Coalinga with III in Atascadero, San Miguel, Coarsegold and Antelope and II in Hanford, Maricopa, Strathmore, Visalia, Arroyo Grande, Paso Robles, Templeton, Madera, Mendota, Fresno and Stockton among others. Earthquakes of M 4.3 last occurred in this area on August 10, 2023 and December 17, 2019 but the last of significantly larger magnitude in the area within about 100 km of today's epicenter was an M 4.7 on April 15, 2014. Seismicity was analyzed for this area in previous issues of this summary as:

 

"While this summary was being written an earthquake of M 5.3 hit Central California west of Parkfield. This is not a heavily populated region of California so damage is expected to be light. Like activity in Vanuatu and Iceland this may have been promoted by the strong solar flare hours earlier. As the mainshock occurred near local midnight, a prime time for solar flare seismic triggering, promotion is likely from the major solar flares of the day. A second strong C6-7 flare was in progress when the earthquake in California occurred.

The mainshock was felt with maximum intensity V and many of the aftershocks with intensity II-III. This is the strongest earthquake to hit central California since an M 5.5 on October 31, 2007. The last large earthquake in the Parkfield area occurred on September 28, 2004 with M 6.0. No earthquake within 80 km  of this epicenter have occurred in the past 22 years with M>5.3. At this writing no serious damage or casualties have been reported.", (October 21, 2012)  

 

 

This earthquake followed 18 minutes after the M 5.8 in Alaska. The distance between these two epicenters is 31 degrees. The time for an S-wave to traverse this distance is about 18 minutes. This suggests that this earthquake of M 4.2-4.3 in the Coalinga area of California may have been triggered by the passage of the surface wave originating in Alaska through California.

 

Forecast 169717 had expected a moderate event in this area of Central California was likely around February 17, 2005.

 

O: 14FEB2025 00:17:04  36.1N  120.2W MB=4.2  EMSC   CENTRAL CALIFORNIA           

O: 14FEB2025 00:17:04  36.1N  120.2W MB=4.3  ANSS   CENTRAL CALIFORNIA           

P: 17FEB2025 169717    36.6N  120.7W 2.5-4.9 BAAAA  Central California         

 

 

A series of light earthquakes was also felt in the San Francisco Bay area of California today. The strongest of  these were of M 3.6, 3.3 and 3.2 on the Hayward Fault passing through Hayward, California. NEIC reported these earthquakes were felt with intensity IV in Los Altos, Hayward, Berkeley, Mount Hamilton, Ione, and III in Belmont, Burlingame, Los Altos, Mountain View, Sunnyvale, San Francisco, San Mateo, Alameda, Concord, Fremont, Castro Valley, Moraga, Newark, Orinda, Pleasanton, Dublin, San Leandro among others.

These began with an M 2.7 felt with intensity III in Hayward, Burlingame, Livermore among other communities in central California. NEIC reported an aftershock of M 2.4  was felt with intensity VI in California in Hayward, Castro Valley, San Lorenzo, and III in Belmont, Burlingame, Los Altos, Moss Beach, Mountain View, Redwood City, San Carlos, San Francisco, Palo Alto, San Mateo, Danville, Concord, Pleasant Hill, El Cerrito, Fremont and as far as Carlsbad, Ludlow and Los Angeles in the southland. NEIC reported in the north an M 2.3 near Clayton, California was felt in San Francisco and Concord; an M 2.5 with intensity III in San Francisco, Clayton, Fort Bragg and II in Pleasant Hill, Martinez, Orinda, San Ramon, Walnut Creek, Oakland, Concord. An M 2.4 near Bayview-Montalvin, California was reported by NEIC to have been lightly felt with intensity II in California at Pleasanton and Petaluma. Like many series in the San Francisco area, this began within minutes of local Solar Noon, a time when tidal stresses with the full moon are maximized. The strongest of these occurred of M 3.1 and M 3.2 near  local solar noon and was probably promoted

by tidal stresses which maximize near this hour with the full moon.

 

Some of these earthquakes in the San Francisco area may have been promoted by SFE associated with solar flare 3710 - a C9.0 flare that occurred near local solar noon in San Francisco. Seismic triggering on the Hayward Fault may indicate high stresses and a moderate upcoming earthquake. Data from SWPC on this flare follow.

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

3710       2216   2243      2310   C9.0      (February 13, 2025)   2.0E-02  

San Francisco M 2.2 22:24 UT, M 2.4 23:07 UT,

Papua M 4.2 22:24 UT

Oaxaca M 4.2 22:56 UT

Romania M 3.4 23:00 UT

Veracruz, Mexico M 4.2 23:10 UT

Alaska M 5.8 23:58 UT

 

Forecasts 169719 had expected these events in the San Francisco Bay area were

likely around February 12-16, 2025.

 

O: 13FEB2025 19:52:13  37.6N  122.1W ML=3.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 19:54:14  37.6N  122.1W ML=3.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 22:24:06  37.6N  122.0W MD=2.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 21:59:16  37.7N  122.1W ML=3.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 00:45:06  37.9N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 03:22:48  37.9N  122.0W MD=2.3  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 23:07:10  38.0N  122.3W ML=2.4  EMSC   SAN PABLO BAY, CALIFORNIA

O: 13FEB2025 13:03:18  37.6N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 12FEB2025 169719    37.1N  121.5W 2.5-4.7 AAAAA  Central California         

P: 16FEB2025 169719    37.3N  121.6W 2.5-4.6 BAAAA  Central California          

 

 

An M 3.9 was also felt in northern Washington State and British Columbia, Canada today. NEIC reported this earthquake of M 3.7 in British  Columbia, Canada was felt with moderate intensity up to II-III in the area(s) of British  Columbia, Canada in Sidney, Chemainus, Duncan, Sooke, Victoria and in Washington State at Olympia (IV), Anacortes, Eastsound, Lopez Island, Point Roberts, Chimacum, Port Townsend and II in Lynnwood, Everett, Coupville, Custer, Friday Harbor, Oak Harbor, Camano Island, Stanwood, Port Angeles, Port Ludlow, Sequim, Vancouver as well as in British Columbia at Cowichan Valley, Nanaimo, Parksville, Sechelt, Walnut Grove and White Rock. EMSC reported shaking for a short period in Victoria, New Songhees, Langford, Central Saanich, North Saanich, and Delta, B.C., Canada an in Washington State in Stanwood, and Port Angeles. Earthquakes of M 3.9-4.0 have most recently occurred within about 200 km of this epicenter on Septeember 26, 2024 and December 24, 2023 but the last event of significantly

larger magnitude was an M 4.9 on December 30, 2015. At the time this summary noted:

 

 

"The most widely felt earthquake of the day was the M 4.9 in the Vancouver Island region on the Puget Sound west of Seattle, Washington. While reported as far as New Mexico and Indiana perceptible shaking from this event was probably limited to an area about 200 km from the epicenter. NEIC reported intensity II-III in communities throughout British Columbia and northwestern Washington State. More intense shaking of intensity IV was reported in Washington at Friday Harbor, La Conner, Lopez Island, Lummi Island, Lynden, Point Roberts, Sumas, Forks, Sekiu, Olympia, Aberdeen, and in British Columbia at Sidney, Abbotsford, Aldergrove, Cowichan Valley, Cumberland, Duncan, Fort Langley, Lillooet, Lions Vay, North Cowichan, Sooke, Vancouver, Victoria, Walnut Grove and White Rock. No major damage or injuries were reported with this earthquake.

 

The Vancouver quake today hit within an hour of local solar midnight and was probably promoted by high tidal stresses which maximize at this time. The last earthquake within about 150 km of this epicenter with M>=4.8 occurred on June 10, 2001 with M 5.0. This was probably an aftershock of the M 6.8 earthquake near Olympia of February 28, 2001." (December 30, 2015)

 

This series is at the fourth node (90 degrees) from the M 7.4 in the Vanuatu Islands of February 8 and may have been promoted by energy from that source.

Earthquakes in California today are near this same distance from Vanuatu.

 

Forecast 169822 had expected today's event within about 100 km was likely around

February 18, 2025.

 

O: 14FEB2025 05:59:18  48.3N  123.3W MB=3.9  ECAN OF VICTORIA, BC   

O: 14FEB2025 05:59:18  48.3N  123.3W ML=3.6  EMSC   VANCOUVER ISLAND, CANADA REGIO

P: 18FEB2025 169822    49.0N  123.0W 2.0-4.1 BAAAA  Washington state, U.S.     

 

A series of light to moderate earthquakes occurred in the Veracruz region of Mexico today. The M 4.0 in Veracruz is the strongest event in that region  since an M 4.5 on January 28, 2024.  Today's events are near the antipode of TC Taliah and may have been promoted by focused energy from that source. The antipode of this typhoon is moving to the north and west and will be in the area of Southern Texas  and Western Texas in the next two days then moving on to southern Colorado. All of these areas could see enhanced seismicity as TC Taliah moves through as noted in this and previous issues of this summary.

 

"Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 75 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 22N 93W is north of, Mexico. It is possible that this area of Central America will see additional enhanced seismicity while Taliah is active." (February 12-14, 2025)

 

O: 13FEB2025 10:54:04  17.7N   95.4W ML=3.5  EMSC   VERACRUZ, MEXICO

O: 13FEB2025 07:04:48  17.5N   94.9W ML=4.0  EMSC   VERACRUZ, MEXICO             

O: 13FEB2025 23:10:52  19.5N   95.0W ML=4.0  EMSC   OFFSHORE VERACRUZ, MEXICO    

P: 15FEB2025 169663    18.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

 

An unusually large M 3.7 was felt in the Virgin Islands today. NEIC reported intensity II-III in the Virgin Islands at Road Town, Tortola and in Puerto Rico at Gurabo and Carolina. The Virgin Islands is another area where antipodal triggering may be occurring. In this case the tropical cyclone is Zelia which is hitting the northwest of Australia at this time. Several earthquake occurred at the antipode to  Zelia today and may have been promoted by focused energy from that typhoon as noted in this and previous issues of this report:

 

"Tropical Cyclone Zelia (18S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 160 kts.  It is expected to track to the south over the next several days. The antipode at 19N  62W is in the northern Caribbean near the Virgin Islands and Puerto Rico.  Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days. A moderate earthquake near Puerto Rico seems likely in the next week." (February 12-14, 2025)

 

Enhanced seismicity in this area of the Virgin Islands and Puerto Rico is

expected in the next several days as TC Zelia makes landfall in Australia.

 

O: 13FEB2025 21:07:15  18.6N   64.7W MD=3.7  EMSC   VIRGIN ISLANDS REGION        

P: 13FEB2025 169670    19.0N   63.0W 3.0-5.1 AABAA  Leeward Islands            

P: 16FEB2025 169670    18.0N   65.0W 3.0-5.0 BAAAA  Leeward Islands            

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 13FEB2025 07:05:21  23.0N   94.3E ML=4.4  EMSC   MYANMAR                      

P: 17FEB2025 169699    23.0N   95.0E 4.0-5.4 BAAAA  Myanmar                    

 

O: 13FEB2025 10:58:33  25.0N   72.2E ML=3.4  EMSC   RAJASTHAN, INDIA             

P: 15FEB2025 169696    24.0N   71.0E 3.5-4.9 AAAAA  India                      

 

O: 14FEB2025 02:02:41  36.7N   71.3E MB=4.0  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 14FEB2025 169729    36.0N   71.0E 3.8-5.3 AAAAA  Hindu Kush/Pakistan        

 

This series is at node 3 (120 degrees) from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

 

O: 13FEB2025 15:39:29  52.2N  160.8E MB=4.3  EMSC   OFF EAST COAST OF KAMCHATKA

P: 12FEB2025 169837    52.0N  159.0E 4.0-5.7 AAAAA  Kamchatka                  

P: 14FEB2025 169835    53.0N  160.0E 4.0-5.8 AAAAA  E. of Kamchatka            

 

INDONESIA AND PHILIPPINES

 

O: 13FEB2025 22:24:20   2.7S  136.3E ML=4.2  EMSC   NEAR N COAST OF PAPUA, INDONESIA

O: 13FEB2025 20:41:57   2.7S  136.3E ML=4.2  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 13FEB2025 169659     2.0S  138.0E 4.0-5.4 AABAA  West Irian, PNG            

 

O: 13FEB2025 20:03:21   3.2S  130.4E ML=4.0  EMSC   SERAM, INDONESIA             

P: 17FEB2025 169642     3.0S  129.0E 4.0-5.7 BABAA  Ceram area                 

 

O: 14FEB2025 00:05:43   4.2S  128.3E ML=4.0  EMSC   BANDA SEA                    

P: 14FEB2025 169642     4.0S  128.0E 4.0-5.6 AAAAA  Ceram area                 

 

O: 13FEB2025 21:07:33   6.1S  103.7E MB=4.8  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 BBBAA  So. of Sumatera            

 

O: 13FEB2025 17:56:12   6.3S  130.9E ML=4.2  EMSC   BANDA SEA                    

P: 12FEB2025 169660     6.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 14FEB2025 02:04:12   7.0N  123.7E ML=4.3  EMSC   MORO GULF, MINDANAO, PHILIPPIN

P: 16FEB2025 169623     7.0N  124.0E 4.0-5.4 AAAAA  Central Philippines        

 

O: 13FEB2025 15:08:07   6.5S  130.2E mb=4.8  EMSC   BANDA SEA

O: 13FEB2025 18:16:22   6.5S  129.0E mb=5.0  EMSC   BANDA SEA

O: 14FEB2025 00:22:57   7.1S  129.7E MW=5.0  EMSC   KEPULAUAN BABAR, INDONESIA   

P: 14FEB2025 169639     8.0S  129.0E 4.0-5.6 AAAAA  Banda Sea                  

 

NEIC reported a earthquakes of M 5.0 and M 4.8 in Banda Sea, Indonesia were felt with moderate intensity up to II-III in the area(s) of Banda Sea, Indonesia at Darwin, Northern Territory, Australia.

This series is at 144 to 146 degrees from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

O: 13FEB2025 17:13:35   8.9N  126.5E ML=4.2  EMSC   MINDANAO, PHILIPPINES        

P: 12FEB2025 169624     8.0N  125.0E 4.0-5.4 AABAA  Central Philippines        

P: 16FEB2025 169624     9.0N  126.0E 4.0-5.6 BAAAA  Central Philippines        

 

O: 13FEB2025 17:44:41  10.4S  123.8E ML=4.2  EMSC   TIMOR REGION, INDONESIA      

P: 15FEB2025 169869    10.0S  124.0E 4.0-5.5 AAAAA  Flores Island area         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 14FEB2025 06:39:49   1.1N   85.3W MW=5.2  EMSC   OFF COAST OF ECUADOR         

P: 18FEB2025 169626     2.0N   85.0W 4.0-5.7 BAAAA  So. of Panama              

 

O: 14FEB2025 00:18:13   6.7N   84.4W MB=4.5  EMSC   OFF COAST OF CENTRAL AMERICA 

P: 12FEB2025 169627     7.0N   82.0W 3.5-5.1 AACAA  Costa Rica                 

P: 14FEB2025 169626     5.0N   83.0W 3.5-5.3 ABBAA  Costa Rica                 

 

O: 13FEB2025 14:25:52  14.8N   98.1W ML=4.0  EMSC   OFF COAST OF OAXACA, MEXICO  

P: 13FEB2025 169684    17.0N   99.0W 3.5-5.7 ACAAA  Oaxaca, Mexico             

 

O: 13FEB2025 22:56:57  15.5N   94.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 13FEB2025 169683    16.0N   96.0W 3.5-5.2 AABAA  Oaxaca, Mexico             

 

O: 13FEB2025 19:52:56  15.6N   93.2W ML=4.1  EMSC   CHIAPAS, MEXICO              

P: 11FEB2025 169663    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

 

O: 13FEB2025 15:04:09  15.6S   74.2W MB=4.6  EMSC   NEAR COAST OF SOUTHERN PERU  

P: 15FEB2025 169877    16.0S   73.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

O: 13FEB2025 12:39:43   4.1S   81.2W ML=4.1  EMSC   NEAR COAST OF NORTHERN PERU  

P: 13FEB2025 169643     3.0S   81.0W 4.0-5.5 ABAAA  Ecuador                    

 

O: 13FEB2025 14:42:33  15.8N   96.2W ML=4.0  EMSC   OAXACA, MEXICO               

P: 13FEB2025 169683    16.0N   96.0W 3.5-5.2 AAAAA  Oaxaca, Mexico             

 

O: 13FEB2025 10:54:04  17.7N   95.4W ML=3.5  EMSC   VERACRUZ, MEXICO

O: 13FEB2025 07:04:48  17.5N   94.9W ML=4.0  EMSC   VERACRUZ, MEXICO             

P: 15FEB2025 169663    18.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico             

 

O: 13FEB2025 12:05:15  18.0N   69.3W ML=3.2  EMSC   DOMINICAN REPUBLIC REGION    

P: 16FEB2025 169686    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 13FEB2025 21:07:15  18.6N   64.7W MD=3.7  EMSC   VIRGIN ISLANDS REGION        

P: 13FEB2025 169670    19.0N   63.0W 3.0-5.1 AABAA  Leeward Islands            

P: 16FEB2025 169670    18.0N   65.0W 3.0-5.0 BAAAA  Leeward Islands            

 

An unusually large M 3.7 was felt in the Virgin Islands today. NEIC reported intensity II-III in the Virgin Islands at Road Town, Tortola and in Puerto Rico at Gurabo and Carolina.

This epicenter is near the antipode of TC Zelia and may have been promoted

by focused energy from that source.

 

O: 14FEB2025 01:29:26  18.7N   67.1W MD=3.2  EMSC   PUERTO RICO REGION           

O: 13FEB2025 13:23:11  18.1N   66.8W MD=3.1  EMSC   PUERTO RICO

P: 15FEB2025 169685    18.0N   67.0W 3.4-6.1 AAAAA  Puerto Rico                

 

O: 13FEB2025 23:10:52  19.5N   95.0W ML=4.0  EMSC   OFFSHORE VERACRUZ, MEXICO    

P: 15FEB2025 169663    18.0N   95.0W 3.5-5.3 ABAAA  Chiapas, Mexico            

 

This epicenter is near the antipode of TC Taliah and may have been promoted

by focused energy from that source. The antipode of this typhoon is moving

to the north and west and will be in the area of Southern Texas  and Western

Texas in the next two days then moving on to southern Colorado. All of these

areas could see enhanced seismicity as TC Taliah moves through as noted in this

and previous issues of this summary.

 

"Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 75 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 22N 93W is north of, Mexico. It is possible that this area of Central America will see additonal enhanced seismicity while Taliah is active." (February 12-14, 2025)

 

 

 

O: 13FEB2025 10:32:04  23.3N  110.2W ML=3.2  EMSC   BAJA CALIFORNIA SUR, MEXICO  

P: 14FEB2025 169694    26.0N  110.0W 3.5-5.8 ACAAA  Gulf of California         

 

O: 13FEB2025 10:46:57  24.9S   70.9W MB=4.9  EMSC   OFFSHORE ANTOFAGASTA, CHILE  

P: 12FEB2025 169888    24.0S   69.0W 4.0-6.1 AABAA  Coast No. Chile            

 

O: 13FEB2025 07:11:29  29.0S   71.4W MW=4.7  EMSC   ATACAMA, CHILE               

P: 15FEB2025 169887    29.0S   71.0W 4.0-5.6 AAAAA  Coast Central Chile        

 

AFRICA AND EUROPE

 

O: 13FEB2025 20:44:56  45.5N   26.4E MB=4.3  EMSC   ROMANIA                      

P: 16FEB2025 169814    46.0N   27.0E 3.0-5.1 BAAAA  Romania/NW Turkey          

 

This series is at the fourth node (90 degrees) from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

NEIC reported an earthquake of M 4.3 in Romania was felt with moderate intensity up to II-III in the area(s) of Romania at Guriu Ilfov.

EMSC reported moderate shaking in Romania at Buzau, Campina, Ghiosesti, Ploiesti, Independenta, Ostratu, Bucharest, Barlad, Braila, Petesti, Crevedia Mica, Calarsi, and as far as Ruse, Bulgaria, and Chisnau, Moldova.

 

O: 13FEB2025 11:16:10   0.2S   29.7E MB=4.7  EMSC   LAKE EDWARD REGION, UGANDA   

P: 19FEB2025 169646     2.0S   29.0E 3.0-4.4 CBAAA  Lake Victoria area         

 

NEIC reported an earthquake of M 4.7 in Uganda was felt with moderate intensity up to IV in the area(s) of Uganda at Kireka, Kanungu, Bushenyi, Mbarara, II-III in Entebbe, Kajansi, Kampala and Kisoro.

EMSC reported moderate shaking in Uganda at Kawempe.

 

O: 13FEB2025 14:57:27  27.8S   30.4E ML=3.0  EMSC   SOUTH AFRICA                 

P: 16FEB2025 169891    26.0S   28.0E 3.0-4.6 BBBAA  Rep. South Africa          

 

O: 13FEB2025 15:42:22  36.6N   25.7E MB=4.7  EMSC   DODECANESE ISLANDS, GREECE   

O: 13FEB2025 15:40:08  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

P: 12FEB2025 169709    36.0N   25.0E 3.0-5.6 AAAAA  Aegean Sea                 

P: 15FEB2025 169709    36.0N   26.0E 3.0-5.6 AAAAA  Aegean Sea                  

 

O: 13FEB2025 12:12:01  43.9N   39.7E MB=4.4  EMSC   CAUCASUS REGION, RUSSIA      

P: 17FEB2025 169770    39.0N   40.0E 3.5-4.9 BCAAA  Turkey                     

 

EMSC reported an earthquake of M 4.3 in the Caucasus was felt with  intensity up to IV in the area(s) of the Caucasus at Kroyanskoye, Vardane, Lazarevskoye, Nizhneye Uchdere, Loos, Plastunka, Dagomys, Mamayskiy Pereval, Otel, Sochi, Svetlana, Bykhta among others. and Sochi.

 

 

SOUTHWEST PACIFIC

 

O: 13FEB2025 21:29:54  20.8S  178.4W MB=4.5  EMSC   FIJI REGION                  

P: 13FEB2025 169895    20.0S  178.0W 4.0-5.4 AAAAA  Tonga Islands              

 

This series is at 102 degrees from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

O: 13FEB2025 12:18:38  20.6S  168.9E MB=4.9  EMSC   LOYALTY ISLANDS              

P: 12FEB2025 169889    21.0S  170.0E 4.0-5.5 AAAAA  Loyalty Islands            

 

No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.

 

OCEAN RIDGES

 

 

O: 13FEB2025 21:20:55  58.8S   25.5W MB=4.8  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 13FEB2025 169916    60.0S   26.0W 4.0-5.8 ABAAA  So. Sandwich Islands       

P: 17FEB2025 169915    58.0S   26.0W 4.0-5.9 BAAAA  So. Sandwich Islands       

 

This series is at 148 from the M 6.8 in the Kyushu of January 13 and may have been promoted by energy from that source.

This series is at node 4 (90 degrees) from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

 

 

ZEALANDIA AND AUSTRALIA REGION

 

No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia

today.

 

JAPAN AND KURIL ISLANDS

 

O: 14FEB2025 01:32:54  45.4N  151.2E MB=4.9  EMSC   KURIL ISLANDS                 

P: 15FEB2025 169818    47.0N  151.0E 3.5-5.4 ABAAA  So. Kurils                 

 

This series is at 101 degrees from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 13FEB2025 23:53:47  36.1N  114.9W ML=2.0  EMSC   LAS VEGAS URBAN AREA, NEVADA 

O: 13FEB2025 17:59:42  36.6N  114.8W ML=2.2  EMSC   NEVADA                       

P: 15FEB2025 169712    37.8N  115.8W 2.5-5.1 ABAAA  California/Nevada area     

 

O: 14FEB2025 04:10:22  38.4N  122.3W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P: 15FEB2025 169720    38.5N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 13FEB2025 16:55:31  38.5N  118.5W ML=2.1  EMSC   NEVADA                        

P: 13FEB2025 169714    38.2N  118.8W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 13FEB2025 21:00:27  38.8N  122.7W MD=2.2  EMSC   NORTHERN CALIFORNIA          

O: 13FEB2025 11:44:39  38.8N  122.8W MD=2.4  EMSC   NORTHERN CALIFORNIA          

P: 15FEB2025 169720    38.5N  122.7W 2.5-4.6 AAAAA  Central California         

 

NEIC reported an earthquake of M 2.2 in Geysers, California was felt with moderate intensity up to II-III in the area(s) of Geysers, California in Moraga and Pleasanton.

 

O: 13FEB2025 09:51:29  40.4N  125.0W ML=3.1  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 12FEB2025 169804    40.5N  125.3W 2.5-4.4 AAAAA  Off Coast of No. Calif     

P: 14FEB2025 169805    40.5N  124.6W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

NEIC reported an earthquake of M 2.9 near the coast of Northern California was felt with moderate intensity up to II-III in the area(s) of Northern California at Eureka.

 

 

O: 13FEB2025 19:52:13  37.6N  122.1W ML=3.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 19:54:14  37.6N  122.1W ML=3.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 22:24:06  37.6N  122.0W MD=2.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 21:59:16  37.7N  122.1W ML=3.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 00:45:06  37.9N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 03:22:48  37.9N  122.0W MD=2.3  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 23:07:10  38.0N  122.3W ML=2.4  EMSC   SAN PABLO BAY, CALIFORNIA

O: 13FEB2025 13:03:18  37.6N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 12FEB2025 169719    37.1N  121.5W 2.5-4.7 AAAAA  Central California         

P: 16FEB2025 169719    37.3N  121.6W 2.5-4.6 BAAAA  Central California         

 

O: 13FEB2025 17:03:05  38.1N  118.0W ML=2.5  EMSC   NEVADA

 

O: 13FEB2025 19:40:04  40.2N  124.4W MD=2.9  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 13FEB2025 07:06:35  40.3N  124.6W ML=3.3  EMSC   OFFSHORE NORTHERN CALIFORNIA

 

ALASKA

 

 

O: 13FEB2025 18:12:17  51.3N  179.9W ML=3.5  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 16FEB2025 169830    51.2N  179.9W 3.5-5.1 BAAAA  Andreanoff Isls, Aleutians 

 

O: 13FEB2025 15:05:28  55.7N  154.8W ML=3.3  EMSC   SOUTH OF ALASKA

O: 13FEB2025 23:59:26  55.8N  155.2W MW=5.8  EMSC   SOUTH OF ALASKA              

P: 16FEB2025 169826    54.8N  158.7W 3.5-4.9 BABAA  Alaska Peninsula           

 

O: 13FEB2025 20:52:15  60.4N  152.1W ML=3.2  EMSC   SOUTHERN ALASKA              

P: 14FEB2025 169851    60.2N  153.2W 3.2-5.1 AAAAA  Central Alaska             

 

NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska at Anchorage and Kenai.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 14FEB2025 05:59:18  48.3N  123.3W MB=3.9  ECAN OF VICTORIA, BC   

O: 14FEB2025 05:59:18  48.3N  123.3W ML=3.6  EMSC   VANCOUVER ISLAND, CANADA REGIO

P: 18FEB2025 169822    49.0N  123.0W 2.0-4.1 BAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 13FEB2025 18:30:41  30.0N  103.3W ML=2.9  EMSC   WESTERN TEXAS                 

P: 15FEB2025 169748    31.5N  103.6W 2.0-4.0 ABAAA  SW U.S.A                   

 

NEIC reported an earthquake of M 2.9 in southwestern Texas was felt with  intensity up to II in the area(s) of El Paso, Texas.

 

O: 13FEB2025 17:32:40  32.3N  101.8W ML=2.2  EMSC   WESTERN TEXAS                

P: 15FEB2025 169748    31.5N  103.6W 2.0-4.0 AABAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 13FEB2025 16:38:35  35.7N   88.7W ML=2.5  EMSC   TENNESSEE                    

P: 17FEB2025 169735    36.3N   89.5W 2.0-3.9 BAAAA  New Madrid area            

 

NEIC reported an earthquake of M 2.4 in Western Tennessee was felt with moderate intensity up to IV in the area(s) of Western Tennessee at Oakfield; III in Jackson, Humboldt, Medon, Dickson and as far as Jackson Mississippi, Loganville, Georgia and Florence, Alabama.

 

O: 13FEB2025 07:03:44  46.2N   75.5W MB=1.1  ECAN OF NOTRE-DAME-DE-PONTMAIN, QC  

P: 18FEB2025 169799    45.0N   75.0W 2.0-4.0 BBAAA  New York State             

P: 19FEB2025 169799    47.0N   76.0W 2.0-4.1 CAAAA  New York State             

 

HAWAII

 

O: 13FEB2025 16:31:08  20.2N  155.8W ML=3.0  EMSC   HAWAII REGION, HAWAII        

P: 14FEB2025 169695    20.4N  155.1W 4.0-5.7 AAAAA  Hawaii area                

 

NEIC reported an earthquake of M 3.1 in Hawaii was felt with moderate intensity up to II-III in the area(s) of Hawaii at Kapaau, Kamuela and II in Hawi and Waikoloa.

 

 

February 16, 2025

 

An earthquake of M 4.7 hit eastern Turkey today. NEIC reported it was felt with intensity up to II in Takman, Erzurum, Turkey.

EMSC reported this earthquake was felt lightly in eastern Turkey at Dikme, Ataturk and Yaylacik.

This epicenter is at 103 degrees from the M 7.6 in the Cayman Islands of February

8, 2025 and may have been promoted by energy from that source.

 

A moderate earthquake of M 4.7 was also felt today in Pakistan. NEIC reported intensity V in Rawalpindi and IV in Islamabad,  Kahuta, Punjab, Pakietan with intensity II-III in Pakistan at Wah, Lalamusa, and in Jodhpur, and Gandarbat, Jammu and Kashmir, India.

EMSC reported a strong intensity in Pakistan at Rawalpindi, Islamabad, Abbottabad, Kupwara, Chhatabal, India and Batmaloo, Jammu and Kashmir, and Srinagar, Ramban, Anantnag, Bishnah India.

 

A moderate M 4.9 was also felt in the area of the Aegean Sea, Greece today.

NEIC reported maximum intensity IV in Neos Marmaras, Greece and III in Halkidiki, Kavala and Thessaloniki, Greece and II-III in Bulgaria at Bansko, Haskovo, Plovdiv,  and Ardino.

EMSC reported a quick  but strong shaking was felt in Greece at Sithonia, Nikiti, Kalyvia, Pefkochori, Polygyros, Potamia, Kavala, Myrina, Serres, Panorama, Mikra, Lagkadas, Pylaia, Thessaloniki, Triandria, Kalamaria among others.

 

Moderate earthquakes of M 3.7  and M 3.5 in the region of western Los Angeles, California occurred

today within several minutes of local solar midnight. It was followed by a series of minor

aftershocks including an M 3.5 and a number of events of M<2. NEIC reported these earthquakes

were felt with intensity IV in Los Angeles, Topanga, Stanton, Oak Park, Port Hueneme and III in Los Angeles,

Culver City, El Segundo, Hermosa Beach, Lawndale, Lynwood, Malibu, Manhattan Beach, Palos Verdes Peninsula, Rancho Palos Verdes, Marina del Rey, Inglewood, Santa Monica, Torrance, Whittier, Santa Fe Springs, Paramount, San Pedro, Long Beach, Glendale, Agoura hills, Calabasas, Winnetka, West hills, Chatsworth, Newbury Park, Porter Ranch, ResedaTarzana, Thousand Oaks, Westlake Village, Woodland Hills, Van Nuys, Temecula, Huntington Beach, Mission Viejo, Orange, Ventura, Camarillo, Moorpark, Oxnard and Simi Valley, Califoria. Lesser shaking was reported as far as 150 km from the epicenter in California.

The last earthquake of M>=3.7 in Los Angeles within about 40 km of today's epicenter

was recorded on November 22, 2024. The mainshock was followed by an M 1.7 aftershock

three minutes later which NEIC reported was felt with intensity III in Malibu, Thousand Oaks, Camarillo, simi Valley and Woodland Hills, California.

Three minutes after the M 3.7 in Malibu, California an M 2.0 occurred in Central

California near Pinnacles. NEIC reportedit was felt at Del Rey, California with intensity II.

This event may have been promoted by surface waves from Mailbu which arrived

at this event in Central California with the occurrence of the M 2.0 there.

 

An M 3.9 occurred north of Puerto Rico today in the Mona Passage. It was not

reported felt. This event lies near the antipode of TC Zelia. It is likely

to have been promoted by antipdal energy from that cyclone as noted in this

and previous issues of this summary:

 

 

"Tropical Cyclone Zelia (18S) made landfall today in the area of the south Indian Ocean north of western Australia with winds up to 140 kts.   The antipode at 19N  63W is in the northern Caribbean near the Virgin Islands and Puerto Rico.  Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days. A moderate earthquake near Puerto Rico seems likely in the next week." (February 15-16, 2025)

 

The earthquake in the Carbbean was followed 13 minutes later by an M 5.0-5.4 off the coast of Araucania, Chile. EMSC reported this earthquake was felt with moderate intensity in Chile at Valdivia and Carahue.

CSN did not make initial intensity reportes available but did provide the following

seismic data for this event.

 

16-02-2025  07:08  38.48S 74.13W  31  5.4     V   No initial reports

 

NEIC reported an earthquake of M 2.7 in Eastern Los Angeles, California was felt with  intensity up to III in the area(s) of Eastern Los Angeles, California at Rancho Cucamonga, Crestline, Fontana, Highland, San Bernardino and II in Woodland Hills, Lake Arrowhead.

 

NEIC reported an earthquake of M 2.4 in Central California was felt with  intensity up to II-III in the area(s) of Central California at Hayward, Castro Valley, Gremont and Union City.

 

NEIC reported an earthquake of M 3.5 east of Los Angeles, California  was felt with  intensity up to IV in the area(s) of east of Los Angeles, California at Aguanga, III at San Dimas, Fallbrook, Valley Center, Vista, Warner Springs, Cathedral City, La Quinta, Palm Springs, Rancho Mirage, Anza, Hemet, Idyllwild, Mountain Center, Murrieta, San Jacinto, Temecula and II at Escondido, Ramona, Solana Beach, San Diego, Indio, Indian Wells, Banning, Desert Hot Springs, Palm Desert, Hemeet, Moreno Valley, Murrieta, San Jacinto, Menifee, Sun City, Winchester, Fullerton, Los Angeles, among others.

 

 

NEIC reported Earthquakes of M 2.2 in  New Mexico were felt with  intensity up to II-III in the area(s) of  New Mexico in Roswell and Hobbs.

 

NEIC reported an earthquake of M 2.0 in South Carolina was felt with  intensity up to III in the area(s) of South Carolina at Ridgeway, Myrtle Beach and II in Elgin, Kexington and Lugoff, South Carolina.

 

 

 

TROPICAL CYCLONE TALIAH (14S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    TALIAH   2025-02-16  00:00 UT  27.3S   81.0E  050 kts  South Indian Ocean

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 50 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 27N  99W is at an active seismic site in southern  Texas. It is possible that this area of Texas will see enhanced seismicity while Taliah is active.

 

 

TROPICAL CYCLONE ZELIA (17S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    ZELIA    2025-02-16  00:00 UT  19.3S  116.2E   50 kts  North of western Australia   

 

Tropical Cyclone Zelia (18S) made landfall today in the area of the south Indian Ocean north of western Australia with winds up to 140 kts.   The antipode at 19N  63W is in the northern Caribbean near the Virgin Islands and Puerto Rico.  Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days. A moderate earthquake near Puerto Rico seems likely in the next week.

 

 

 

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

4060       0022   0031      0034   C2.3      (February 15, 2025)   9.1E-04  

Sibuyan Sea, Philippines M 5.0  00:47 UT

 

4090       0034   0039      0043   C3.1      (February 15, 2025)   1.3E-03  

Southwest of Africa M 4.8 00:47  UT

 

4110       0536   0543      0547   C1.5      (February 15, 2025)   8.7E-04  

4120       0720   0723      0727   C2.8      (February 15, 2025)   8.4E-04  

4150       1217   1221      1227   C1.6      (February 15, 2025)   7.6E-04  

4160       1354   1359      1410   C2.4      (February 15, 2025)   2.0E-03  

4180       1922   1936      1948   C3.6      (February 15, 2025)   4.4E-03  

4190       2054   2103      2111   C2.0      (February 15, 2025)   1.9E-03  

4210       2356   0005      0011   C3.9      (February 15, 2025)   2.9E-03  

Guatemala M 4.7 00:13 UT

off Northern California M 2.8 23:56 UT

Kuril Is. M 4.3 00:16 UT

 

 

GEOMAGNETIC FIELD: minor storms February 16 unsettled February 17 active February 18.  Solar M-flare chance: 45% X-class: 10% proton storm: 5%

 

AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux)    28 55 20 13:00 7 153 184

 

A strong Gamma Ray Burst was recorded by SWIFT on February 7, 2025 at 01:16:07 UT (#250207A).  A preliminary UVOT Magnitude  of V=16.89 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 29, 2025 at 04:45:09 UT (#250129A).  A preliminary UVOT Magnitude  of V=17.24 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 28, 2025 at 16:22:53 UT (#250128B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 14, 2025 at 07:33:19 UT (#250114A).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 8, 2025 at 10:23:06 UT (#250108B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

February 15, 2025

 

A series of triggered earthquakes occurred throughout the world today. The strongest

event of the day was an M 6.0 in Ethiopia, the largest in this region since an

 

An M 5.0-5.1 also occurred in west Texas near the New Mexico Border today.

This event is near the antipode of TC Taliah, the same Tropical Cyclone

that helped trigger the M 7.6 in the Cayman Islands of February 8, 2025.

 

The earthquake in Texas occurred several hours before enhanced activity in Los Angeles, California which included events of M 3.7 and 3.5 in western Los Angeles and the Simi Valley area.

 

These events and triggering agents are examined in more detail further in this summary.

 

LOS ANGELES, CALIFORNIA

 

A moderate earthquake of M 3.7 in the region of western Los Angeles, California occurred

today within several minutes of local solar midnight. It was followed by a series of minor

aftershocks including an M 3.5 and a number of events of M<2. NEIC reported these earthquakes

were felt with intensity IV in Los Angeles, Topanga, Stanton, Oak Park, Port Hueneme and III in Los Angeles,

Culver City, El Segundo, Hermosa Beach, Lawndale, Lynwood, Malibu, Manhattan Beach, Palos Verdes Peninsula, Rancho Palos Verdes, Marina del Rey, Inglewood, Santa Monica, Torrance, Whittier, Santa Fe Springs, Paramount, San Pedro, Long Beach, Glendale, Agoura hills, Calabasas, Winnetka, West hills, Chatsworth, Newbury Park, Porter Ranch, ResedaTarzana, Thousand Oaks, Westlake Village, Woodland Hills, Van Nuys, Temecula, Huntington Beach, Mission Viejo, Orange, Ventura, Camarillo, Moorpark, Oxnard and Simi Valley, Califoria. Lesser shaking was reported as far as 150 km from the epicenter in California.

The last earthquake of M>=3.7 in Los Angeles within about 40 km of today's epicenter

was recorded on November 22, 2024. At the time this summary noted:

 

"A moderate earthquake of M 3.8 was widely felt in the region of greater Los Angeles, California near Malibu today. This near-noontime event was reported by NEIC with maximum intensity IV in California at Pacific Palisades, Seal Beach and Ventura; III in Los Angeles, Beverly Hills, Culver City, Downey, El Segundo, Malibu, Manhattan Beach, Palos Verdes Peninsula, Topanga, Marina del Rey, Santa Monica, Harbor City, Lomita, Wilmington, Long Beach, Glendale, Agoura Hills, Calabasas, Caonga Park, West Hills, Encino, Newbury Park, Reseda, Thousand Oaks, Westlake Village, and in general within abouot 100 km of the epicenter in Southern California.

EMSC reported this earthquake at M 3.6 felt in teh area of Los Angeles with moderate intensity. The last earthquake

larger magnitude in this region of Los Angeles occurred as an M 4.7 on September 12, 2024.

Other earthquakes in this area this year occurred as an M 4.1 on January 1, 2024 and February 9, 2024 with M 4.6 and an M 4.4 on August 12, 2024.

This summary has previously noted enhanced seismicity in this region of Los Angeles

this year most recently on September 12, 2024 as:

 

 

"The strongest earthquake in the U.S. or Canada today was an M 4.7 in the region of Los Angeles, California.

NEIC received nearly 20,000 felt reports from residents of Southern California. These included reports of intensity V in Malibu, Agoura Hills, Westlake Village, Thousand Oaks, and IV in Calabasas, Oak Park, Newbury Park, West Hills, Woodland Hills, Camarillo, Canoga Park, Simi Valley, Winnetka, Tarzamna, Santa Monica, Moorpark, Santa Monica, Encino, Reseda, Northridge, Los Angeles, Sherman Oaks, Van Nuys, Somis, Marina del Rey, Beverly Hills, Studio City, Valley Village, North Hollywood, Universal City, Hermosa Beach among others. Intensity III was felt as far as 150 km from the epicenter in places such as San Bernardino and Camp Pendleton, California with II shaking as far as 600 km from the epicenter in Arizona, Nevada, Oregon and Colorado among others.

The last earthquake in the Los Angeles with M>=4.7 within about 100 km of today's

M 4.7 epicenter occurred as an M 5.1 on August 20, 2023 and prior to that an M 5.1 on

March 29, 2014 and M 4.7 on May 18, 2009, the last such event in the Simi Valley

near Los Angeles.

 

Light aftershocks, including an M 3.4 were felt with intensity up to IV in Southern California in Malibu, Agoura Hills, Westlake Village, Calabasas, Oak Park, Thousand Oaks, Newbury Park, Woodland Hills, Camarillo, Simi Valley, Northridge, Los Angeles and as far as 200 km from the epicenter in Ludlow and San Diego.

NEIC reported an earthquake of M 2.9 in Southern California was felt with intensity up to III in the area(s) of Southern California in Del Mar.

 

The last earthquake near today's epicenter with M>=4.5 was an M 4.6 on February 9, 2024.

At the time this summary noted:

 

"The moderate earthquake of M 4.6-4.7 was widely felt in the region of Los Angeles, California today. Press reports indicate it was felt by more than a million residents in

the area of western Los Angeles and the San Fernando Valley to Malibu, California with

maximum intensity up to V in Los Angeles. EMSC reported very strong shaking in

Los Angeles, California at Westlake Village, Agoura Hills, Thousand Oaks, Oak Park, Casa Conejo, Newbury Park, Calabasas, Moorpark, Camarillo, Simi Valley, Woodland Hills, Canoga Park, Winnetka, Chatsworth, Northridge, Reseda, Tarzana, Chatsworth and as far as Dana Point, Loma Linda, Hesperia, and in Winterhaven and Yuma, Arizona.

Many smaller aftershocks were felt in the same area.  Minor damage was reported in Los Angeles. This included some minor damage

to structures and the temporary closure of regional theme parks such as

Disneyland rides.

 

This was the strongest earthquake in the Los Angeles, CA area since an M

5.1 on August 20, 2023 and an M 5.3 on April 5, 2018 and is near the epicenter

of the Northridge earthquake of M 6.7 of January 17, 1994 and the M 6.8 in

San Fernando Valley of February 9, 1971." (November 22, 2024)

 

 

Readers of this summary had been warned to expect this type of enhanced seismicity

in southern and central California as recently as February 13 when it was noted:

 

 

Readers should also be reminded that there is still a seismic watch out

for the area of the west coast of the U.S. including Alaska and California.

This was noted in previous issues of this summary as:

 

 

"Following the massive fires in January and February, 2005, this summary began

watching seismicity of this region. As energy from TC Vince matches the

full moon and energy from the M 7.6 in the Cayman Islands at about the

right time for unloading effects from the fires, conditions in Southern

California (Simi Valley, L.A. California is at the 10th node (36.0 degrees) from the Cayman Islands epicenter)and northern Baja and the Gulf of California appear to be

optimized in mid-February to trigger a moderate (or possibly large) earthquake

in that area in the coming week." (February 9-10, 2025).

 

This is emphasized as a strong storm hit the northeast over the past day. Such

storms often accompany enhanced seismicity in California or Alaska as

noted in many previous issues of this summary. This watch was later extended

to northern California and eventually to Alaska and is in effect for two

more days. A seismic watch is called when environmental conditions in an

area could induce enhanced seismicity in a limited time period." (February 13, 2025)

 

When the first began in early January, this summary provided an overview of

expected related seismicity in the issue of January 8, 2025 as:

 

"A major series of wildfires is currently consuming large portions of acreage in

Southern California in the Los Angeles region. The cause of these is currently

being investigated but is not known a this writing. Thousands of homes have

been burnt to the ground, millions are without electricity and injuries and deaths

have not been calculated at this point. This is a major disaster for the area.

Fire fighters and disaster personel are on the scene trying to mitigate the

disaster and winds are expected to be at lower speeds in the next day.

While this is not an earthquake, or earthquake related, the residents of this heavily populated area of the U.S. southwest are in

our thoughts.

 

In terms of earthquakes there have been two major earthquake disasters in

the Los Angeles area in the past 90 years. The first of these occurred as the

San Fernando earthquake of M 6.8 of February 9, 1971. This was described in

this summary as:

 

"2  9 14  0 55 1971  34.400 -118.434   9 6.7   So. California

 

The San Fernando earthquake. Maximum intensity VI when the Olive View Hospital was destroyed.  58 killed of which 49 were at the San Fernando Veterans Ad. Hospital. More than 2,000 injured. Damage estimated at more than $500 millioin. The near-failure of the Lower Van Norman Dam caused evacuation of thousands. Electrical and utilities were completely disrupted. Ground faulting was observed in the San Fernando area and landslides were common. Highway overpasses, railroads, pipelines were severely damaged by slides. Roads were blocked by rockfalls." (February 9, 2024)

 

The other was the Northridge earthquake of January 17, 1994 of M 7.0 as described

in this summary:

 

 

" 1 17 12 30 55 1994  34.220 -118.760  18 7.0   So. California

 

Strongly damaging in the Los Angeles, Ventura, Orange and San Bernardino area with maximum damage in the Northridge area. Up to 60 killed and 7000 injured.  40,000 buildings damaged and more than 20,000 homeless. Maximum intensity was IX at Northridge and Sherman Oaks. Overpasses on the Santa Monica Freeway collapsed. Damage also to other freeways in the area. Fires were started by the earthquakes which caused additional damage. Estimated damage was $20 billion (U.S. Dollars). Felt throughout southern California into Nevada, Utah and Baja, California. Rockslides closed many roads. Ground cracks were noted at Granada Hills and Potrero Canyon. Liquefaction occurred in the Los Angeles Basin." (January 17, 2024)

 

The Northridge earthquake was preceded by a series of disastrous fires in the

area described in the UNDRR (United Nations report as:

 

"USA: The 1993 Southern California Fires (IFFN No 10- January 1994)

 

Southern California suffered another disastrous series of Fires in October and November 1993. The fires

started on 26 October under sever Santa Ana Wind conditions, some by arson and other accidentally. Preliminary data indicat that a total of 21 fires covered 197225 acres (almost 84,000 ha) injuring 162

people and killing three. The fires destroyed 1241 structures and damage was preliminarily estimated by be $500 million, although

that figure could rise as damage is further assessed and the aftermath of heavy rains, mudslides, and floods afer the fires takes its toll.

 

The fires were in six southern California counties - Los Angeles, Orange, Riverside, San Bernardino, San Diego and Ventura."

 

Likewise the San Fernando earthquake of 1971 had been preceded several months

before by a major wild fire in the Los Angeles area. The website htts://achistory.com/gif/galleries/fire092570/

describes this fire as:

 

"September 25, 1970 - The Clampitt (Newhall and W4ight (Malibu) fires of September 25, 1970 merged to become the

largest and deadliest wildfire in modern Los Angeles County history, up to that point.

 

The Clampitt fire broke out around 8 a.m. Friday, Sept. 25, near Clampitt Road in the Newhall Pass as a result of

Downed power lines. In Santa Ana winds clocked at 80 mph, it took less than a daa for the fire to make a 20-mile run to the coast, tearing through Porter Ranch, the Simi Hills at Chatsworth, south to the 101 Freeway and on to Malibu Canyon. News reports initially called

it the Chatsworth-Malibu Canyon fire because much of the destruction  occurred there.

 

By the time the smoke cleared, the Clampitt Fire had scorched 107,103 acres

of brush and forest, destroyed 80 structures (source: University of California Division of Agriculture and Natural Resources). It sill stands as L.A. County's deadliest wildfire in modern history ..."

 

While other wildfires of lesser extent occur in the area of Los Angeles every year. The

seasonal Santa Ana winds are a major factor in spreading the fires. But is there

a relation between major wild fires in the Los Angeles area and subsequent

earthquakes such as those of February, 1971 and January, 1994?

 

This summary has previously noted that there may be such a connection. Fires

remove a substantial mass from the surface over a broad area. This mass is redistributed

through winds and carried away by human activities out of the region. As with, but reverse from, reservoir loading

and subsequent earthquakes, this can lead to substantial adjustment in the

stress environment of the area beneath the fires and perhaps to strong

earthquakes.

 

Significant earthquakes in the area of Los Angeles often occur when a tropical

cyclone is active in the South Indian Ocean east and south of Madagascar (at

the antipode of Los Angeles - 34S 62E). So readers may want to watch for such a meteorological

storm in the next couple of months.

 

At the very least, these fires remind that the first several months of the

year (January-March) are the most likely to see major earthquakes in the

area of southern California near Los Angeles and since it has been 31 years

since the last such event, one might be overdue. Keeping a well stocked

emergency kit for local or regional disasters is especially important. And

keeping valuables and transportation easily in reach is also recommended.

This summary will attempt to provide warnings if such an event seems imminent." (January 8, 2025)

 

TEXAS

 

An M 5.0-5.1 hit the area of western Texas today. NEIC reported it was felt with maximum intensity upt o V in Odessa, Texas and Juarez, Chihuahua, Mexico with IV in Texas at Friona, Lubbock, Fort Stockton, Van Horn, El Paso, and in New Mexico at Rincon, Anthony, Roswell, Artesia, Carlsbad, Eunice,  Hagerman, Loving, Capitan, Corona, Hondo and Tularosa with lesser shaking within about 500 km of the epicenter mostly in Texas and New Mexico but also reported felt in Utah.

EMSC reported moderate to strong shaking in New Mexico at Otis, Roswell, Carlsbad, Ruidoso and in Texas at Artesia, Odessa, El Paso, Anthony, Alamogordo, and in Juarez, Mexico.

This earthquake occurred near local solar midnight and may have been promoted

by tidal stresses with the full moon of February 12, 2025 which maximize near

this hour. The M 5.0 was preceded by an M 2.6 regional foreshock which was

felt with intensity up to IV in El Paso and III in Las Cruces, New Mexico and Lubbock, Aspermont and Midland. An  in Alpine and Pecos, Texas.

M 2.6 was near Big Bend was also felt in El Paso, Texas today.

 

The larger earthquakes in western Texas often occur near full and

new moons as this summary as noted in the past as when the series began on

March 26, 2020 with a new moon on March 27, 2020 and the last event of M>=5

which occurred within about 200 km of today's epicenter as an M 5.2 on November 8, 2023:

 

"The strongest earthquake in the U.S. or Canada today was an M 5.2 in the Mentone

area of Texas. It was reported with intensity up to VI in Mentone, Texas and with moderate shaking in Carlsbad, New Mexico an in Fabens, El Paso, Texas among others.

 

This event was probably promoted by well injection of waters following fracking and

extraction of oil and gas in the region. This may also have been promoted by

geomagnetic effects associated with the current geomagnetic storm and/or

by tidal stresses associated with the upcoming new moon as described in this

issue in previous summaries

 

...

 

A series of minor aftershocks followed the M 5.2 in western Texas today and

continued throughout the day. The M 5.2 is the strongest earthquake in Texas

since an M 5.4 on December 16, 2022 about 200 km northeast of this epicenter and an M 5.4 on November 16, 2022

which began the sequence of events in this region of the Permian Basin of Texas." (November 8, 2023)

 

While the antipode of TC Taliah is not exactly where the M 5.0 occurred in

West Texas today, it was a much better march for an M 2.6 in Southern Texas near Charlotte.

NEIC reported that event was felt with intensity up to IV in San Antonio, Texas.

TC Taliah was at 28S 82E when the Texas event occurred at 28N 98W.

 

With the arrival of TC Taliah at the antipode to this active area of west Texas tomorrow this area

could see additional moderate seismicity in the next several days.

 

ETHIOPIA

 

An M 6.0 occurred in the current swarm (which began in September, 2024) in Ethiopia today. NEIC reported it was felt with damage and intensity up to IX at Metehara, Oromia, Ethiopia and with intensity II in Addis Ababa.

EMSC reported very stron shaking at Awasa Zuriya, Ethiopia. This is the strongest earthquake within about 300 km in Ethiopia in at least 35 years.

An M 6.2 hit about 300 northeast of this epicenter on March 5, 1992. This earthquake

occurred at the start of a strong solar flare of M1.8 (SWPC # 4030 - see parameters

below). Activity in Ethiopia is often associated with strong solar flares and noted in previous issues of

this summary for example:

 

 

"The swarm of earthquakes in the region of Ethiopia which began on Sept.

20(2005) continued at very high rates today. Earthquakes of M 5.1, 4.3, 4.8, 4.9,

5.0, 5.3, 4.6, 4.9, 4.3, 5.1, 4.8, 4.4, 4.9, 4.6, 4.8, 5.2 and 5.0 were

located in the region today and are currently continuing with intervals

of about one hour between events. This is indicative of upcoming volcanism

and/or a strong earthquake in the area which may be accelerated by any

strong solar or geomagnetic activity.  An earthquake of M>=6 is still possible

in this region in association with this swarm." (September 25, 2005)

 

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

4030       2025   2057      2105   M1.8      (February 14, 2025)   1.2E-02  

Ethiopia M 6.0 20:28 UT

 

 

RUSSIA

 

An unusual earthquake of M 5.7 hit on the border regioni between Russia and Kazakhstan today. NEIC reported maximum intensit in Altaj, Russia at Biysk and IV in Gorno-Alaysk, with intensity II-III in Altaj, Russia at Zarinsk, Barnaul and in Tomsk and in Oskemen Sigis, Kazakhstan.

EMSC reported moderate to strong shaking in Russia at Ust-Koksa, Gorno-Altaysk, Sheregesh, Biysk, Sayanogorsk, Mezhdurechensk, Novokuznetsk, Barnaul, Novyy Gorodok, Rubtsovsk, Kemerovo, Berdsk, Novosibirsk and in Kazakhstan at Akimshiik,Sheregesh, Biysk, Ust-Kamenogorsk. 

The last earthquake with equal or larger magnitude within about 300 km of this epicenter near the Russia-Mongolia border

was recorded as an M 7.3 on September 27, 2003 with aftershocks of M 6.4 and 6.8 on October 1, 2003,

At the time this summary noted:

 

 

"A strong earthquake (M 7.3) with a very energetic aftershock sequence hit the

region along the Siberia, Russia/Mongolia border today. The earthquake was strong

enough to have caused damage in the epicentral region, but since the area is not

highly populated this damage is expected to be slight to moderate by geoForecaster.

Previous strong earthquakes in the area of this event have not caused significant

damage. The first strong recorded earthquake in this area occurred on November

8, 1761 probably south of today's event with M 7.5-8.3 and was followed by

strong aftershocks for up to 10 years (the last of these apparently occurred

as an M 6.0 on March 1, 1771. Damage was moderate to mining structures in the region

People located in the Shagyr Fort were panicked, but damage was limited (intensity IX).

An aftershock of M 6.5 occurred on Feb. 20, 1765, More recent strong earthquakes have occurred

in the vicinity of today's event on Dec. 28, 1902 (M 6.6). Strong shaking was

associated with this event as well (intensity 7-8). An earthquake with intensity

9 (strong and damaging shaking and destruction) occurred about 400 to the south

on April 10, 1931 (M 7.8). The rupture length of this event was reported as

up to 200 km. The last strong event in the region was recorded on Nay 15, 1970

with M about 7.0. It was strongly felt with damage (intensity 9) in the Tsagan-Shibetuy

area and was followed by a strong aftershock sequence. On the basis of previous

events in this area, then we can forecast that damage will be light to moderate,

maximum intensity will probably be between VII and IX. (Data source: New Catalog

of Strong Earthquakes in the U.S.S.R. from ancient Times through 1977, World Data Center

A for Solid Earth Geophysics, July 1982). ...

A foreshock did occur in this area on September 17. At the time this summary

had noted this event in our main summary where we had stated:

 

"Strong regional activity was recorded in the Lake Baykal region of Siberia, Russia today. The strongest of

these was an M 5.4 in the Lake Baykal was apparently the strongest event in this region

area since December 21, 1999 when an M 5.5 was recorded. This event was followed

by a smaller event about 700 km to the southwest of the mainshock with preliminary

magnitude M 4.2-4.6 early on September 17. Lake Baykal is considered the deepest

fresh water lake in the world and occupies a rift in central Siberia. The area

is not highly populated and these two events are unlikely to have caused regional

damage despite their size and shallow focal depth. geoForecaster had expected

activity in this area in early September within 100 km of the later event with

maximum magnitude up to M 4.5." (September 17, 2003, September 27, 2003)

 

 

 

NEIC reported an earthquake of M 5.3 in Samar, Philippines was felt with  intensity up to II-III in the area(s) of Samar, Philippines in the Eastern and Central Visayas at Borongan (V), Sulat (IV); San Antonio (III) and II in Logon, MacArthur and and Tanauan.

EMSC reported 10 seconds shaking in Tacloban, Philippines.

PHIVOLCS reported intensity V in Balangkayan, Hernani, Llorente and Maydolong, Eastern Samar; IV in Balangiga, City of Borongan, General MacArthur, Giporlos,Guiuan, Lawaan, Mercedes, Quinapondan, Salcedo, San Julian, Sulat and Taft, Eastern Samar; III in Leyte, Sorsogon, City of Tacloban among others.

 

NEIC reported an earthquake of M 5.0 in the Sibuyan Sea, Philippines was felt with  intensity up to II-III in the area(s) of Sibuyan Sea, Philippines in Bicol at Malabog and Masarawag.

PHIVOLCS reported intensity IV in Claveria and San Pascual, Masbate; Pilar and Donsol, Sorsogon and III in City of Masbate, Masbate and City of Lepazpi, Albay.

NEIC reported an earthquake of M 2.9 in the California Geysers was felt with  intensity up to II-III in the area(s) of the California Geysers at Kelseyville (IV), Middletown and Cloverdale.

 

NEIC reported an earthquake of M 4.8 in Guerrero, Mexico was felt with  intensity up to II-III in the area(s) of Guerrero, Mexico in Xico and Tlalnepantla.

 

NEIC reported an earthquake of M 3.8 south of Hawaii  was felt with  intensity up to II-III in the area(s) of Hawaii at Holualoa, Waikoloa, Laupahoehoe, Naalegh and II in Captain Cook, Ookala, Pahoa and Volcano.

 

NEIC reported an earthquake of M 5.1 in Java, Indonesis was felt with  intensity up to II-III in the area(s) of Java, Indonesia at Karawang.

BMG reported intensity III in Kab. Pandeglang at Cikeusik and Lebak at Wanasalam. Intensity II was felt in Kab. Sukabumi, Cianjuir, Ciamis, Cirebon, Suband, Bekasi, Bandung, Cilacap, Nganjuk, Iebak, Serang and Donggala.

 

 

TROPICAL CYCLONE TALIAH (14S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    TALIAH   2025-02-15  00:00 UT  30.0S   81.2E  065 kts  South Indian Ocean

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 65 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 30N 100W is approaching Mexico near western Texas. It is possible that this area of Central America and Texas will see additonal enhanced seismicity while Taliah is active.

 

 

TROPICAL CYCLONE ZELIA (17S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    ZELIA    2025-02-15  00:00 UT  19.3S  117.2E  120 kts  North of western Australia   

 

Tropical Cyclone Zelia (18S) made landfall today in the area of the south Indian Ocean north of western Australia with winds up to 140 kts.   The antipode at 19N  63W is in the northern Caribbean near the Virgin Islands and Puerto Rico.  Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days. A moderate earthquake near Puerto Rico seems likely in the next week.

 

 

 

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

3730       0027   0038      0048   C4.3      (February 14, 2025)   4.7E-03  

San Francisco M 2.5 00:45 UT

Eastern Turkey M 3.8 00:27 UT

 

3750       0213   0228      0243   M1.2      (February 14, 2025)   1.3E-02      

3820       0731   0745      0750   C6.6      (February 14, 2025)   4.5E-03  

No. Honduras M 4.7 07:26 UT

 

3940       0948   1006      1019   M1.2      (February 14, 2025)   1.4E-02  

South Sandwich Is. M 5.1 09:47 UT

Jalisco M 3.7 09:51 UT

Veracruz, Mexico M 4.2 10:02 UT

 

4000       1408   1417      1421   C4.8      (February 14, 2025)   1.9E-03  

Samar, M 4.0 14:18 UT

Ecuador M 4.7 14:21 UT

Bali M 4.4 14:38 UT

 

4030       2025   2057      2105   M1.8      (February 14, 2025)   1.2E-02  

Ethiopia M 6.0 20:28 UT

Banda Sea M 4.2 20:30 UT

Talaud Is. M 4.6 20:56 UT

Santa Cruz Is M 5.0 21:30 UT

 

4050       2227   2236      2252   C1.6      (February 14, 2025)   2.3E-03  

Dodecanese M 4.1 22:45 UT

 

 

GEOMAGNETIC FIELD: minor storms February 15 active February 16 unsettled February 17.  Solar M-flare chance: 45% X-class: 10% proton storm: 5%

 

AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux)    27 44 20 18:00 6 111 179

 

A strong Gamma Ray Burst was recorded by SWIFT on February 7, 2025 at 01:16:07 UT (#250207A).  A preliminary UVOT Magnitude  of V=16.89 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 29, 2025 at 04:45:09 UT (#250129A).  A preliminary UVOT Magnitude  of V=17.24 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 28, 2025 at 16:22:53 UT (#250128B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 14, 2025 at 07:33:19 UT (#250114A).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 8, 2025 at 10:23:06 UT (#250108B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

STRONG EARTHQUAKE IN ALASKA STARTS SERIES IN CENTRAL CALIFORNIA

 

EARTHQUAKE SUMMARY FOR FEBRUARY 13, 2025

 

The strongest earthquake in the world today occurred near local solar noon in the Akhiok area of southern Alaska. NEIC reported it was felt with intensity II in Kodiak, Alaska and possibly Eagle River about 200 km to the northeast. The mainshock in Alaska was preceded nine hour earlier by an M 3.3 foreshock. At M 5.8 this is the strongest earthquake within about 300 km of this epicenter since an M 6.9 on October 11, 2021 and an M 6.8 on May 29, 2015. At the time this summary noted:

 

"A strong earthquake of M 6.8 hit off the Alaska Peninsula today. This is a remote area and there were no reports of major damage or tsunamis with this event. It was  reported felt with intensity IV in Alaska at South Naknek, King Salmon, and II-III in Valdez, Sterling, Soldotna, New Stuyahok, Manokotak, Kodiak, Kenai, Kasilof, Homer, Egegik, Eagle River, Dillingham, Cold Bay, Chugiak, Anchor Point an Anchorage. An aftershock of M 3.6 was felt with intensity II-III in Anchorage and Homer, Alaska. The last earthquake of M>=6.7 within about 200 km of this epicenter occurred as an M 6.8 on July 11, 2000 which, in turn, was an aftershock of an M 7.0 which occurred on December 6, 1999." (May 29, 2015)

 

Forecast 169826 had expected this event in this area was likely around February 16, 2025.

 

O: 13FEB2025 15:05:28  55.7N  154.8W ML=3.3  EMSC   SOUTH OF ALASKA

O: 13FEB2025 23:59:26  55.8N  155.2W MW=5.8  EMSC   SOUTH OF ALASKA               

P: 16FEB2025 169826    54.8N  158.7W 3.5-4.9 BABAA  Alaska Peninsula           

 

 

A moderate earthquake of M 4.2-4.3 was felt in Central California today. NEIC reported it with intensity IV in California at Avenal and Coalinga with III in Atascadero, San Miguel, Coarsegold and Antelope and II in Hanford, Maricopa, Strathmore, Visalia, Arroyo Grande, Paso Robles, Templeton, Madera, Mendota, Fresno and Stockton among others. Earthquakes of M 4.3 last occurred in this area on August 10, 2023 and December 17, 2019 but the last of significantly larger magnitude in the area within about 100 km of today's epicenter was an M 4.7 on April 15, 2014. Seismicity was analyzed for this area in previous issues of this summary as:

 

"While this summary was being written an earthquake of M 5.3 hit Central California west of Parkfield. This is not a heavily populated region of California so damage is expected to be light. Like activity in Vanuatu and Iceland this may have been promoted by the strong solar flare hours earlier. As the mainshock occurred near local midnight, a prime time for solar flare seismic triggering, promotion is likely from the major solar flares of the day. A second strong C6-7 flare was in progress when the earthquake in California occurred.

The mainshock was felt with maximum intensity V and many of the aftershocks with intensity II-III. This is the strongest earthquake to hit central California since an M 5.5 on October 31, 2007. The last large earthquake in the Parkfield area occurred on September 28, 2004 with M 6.0. No earthquake within 80 km  of this epicenter have occurred in the past 22 years with M>5.3. At this writing no serious damage or casualties have been reported.", (October 21, 2012)  

 

 

This earthquake followed 18 minutes after the M 5.8 in Alaska. The distance between these two epicenters is 31 degrees. The time for an S-wave to traverse this distance is about 18 minutes. This suggests that this earthquake of M 4.2-4.3 in the Coalinga area of California may have been triggered by the passage of the surface wave originating in Alaska through California.

 

Forecast 169717 had expected a moderate event in this area of Central California was likely around February 17, 2005.

 

O: 14FEB2025 00:17:04  36.1N  120.2W MB=4.2  EMSC   CENTRAL CALIFORNIA           

O: 14FEB2025 00:17:04  36.1N  120.2W MB=4.3  ANSS   CENTRAL CALIFORNIA           

P: 17FEB2025 169717    36.6N  120.7W 2.5-4.9 BAAAA  Central California         

 

 

A series of light earthquakes was also felt in the San Francisco Bay area of California today. The strongest of  these were of M 3.6, 3.3 and 3.2 on the Hayward Fault passing through Hayward, California. NEIC reported these earthquakes were felt with intensity IV in Los Altos, Hayward, Berkeley, Mount Hamilton, Ione, and III in Belmont, Burlingame, Los Altos, Mountain View, Sunnyvale, San Francisco, San Mateo, Alameda, Concord, Fremont, Castro Valley, Moraga, Newark, Orinda, Pleasanton, Dublin, San Leandro among others.

These began with an M 2.7 felt with intensity III in Hayward, Burlingame, Livermore among other communities in central California. NEIC reported an aftershock of M 2.4  was felt with intensity VI in California in Hayward, Castro Valley, San Lorenzo, and III in Belmont, Burlingame, Los Altos, Moss Beach, Mountain View, Redwood City, San Carlos, San Francisco, Palo Alto, San Mateo, Danville, Concord, Pleasant Hill, El Cerrito, Fremont and as far as Carlsbad, Ludlow and Los Angeles in the southland. NEIC reported in the north an M 2.3 near Clayton, California was felt in San Francisco and Concord; an M 2.5 with intensity III in San Francisco, Clayton, Fort Bragg and II in Pleasant Hill, Martinez, Orinda, San Ramon, Walnut Creek, Oakland, Concord. An M 2.4 near Bayview-Montalvin, California was reported by NEIC to have been lightly felt with intensity II in California at Pleasanton and Petaluma. Like many series in the San Francisco area, this began within minutes of local Solar Noon, a time when tidal stresses with the full moon are maximized. The strongest of these occurred of M 3.1 and M 3.2 near  local solar noon and was probably promoted

by tidal stresses which maximize near this hour with the full moon.

 

Some of these earthquakes in the San Francisco area may have been promoted by SFE associated with solar flare 3710 - a C9.0 flare that occurred near local solar noon in San Francisco. Seismic triggering on the Hayward Fault may indicate high stresses and a moderate upcoming earthquake. Data from SWPC on this flare follow.

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

3710       2216   2243      2310   C9.0      (February 13, 2025)   2.0E-02  

San Francisco M 2.2 22:24 UT, M 2.4 23:07 UT,

Papua M 4.2 22:24 UT

Oaxaca M 4.2 22:56 UT

Romania M 3.4 23:00 UT

Veracruz, Mexico M 4.2 23:10 UT

Alaska M 5.8 23:58 UT

 

Forecasts 169719 had expected these events in the San Francisco Bay area were

likely around February 12-16, 2025.

 

O: 13FEB2025 19:52:13  37.6N  122.1W ML=3.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 19:54:14  37.6N  122.1W ML=3.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 22:24:06  37.6N  122.0W MD=2.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 21:59:16  37.7N  122.1W ML=3.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 00:45:06  37.9N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 03:22:48  37.9N  122.0W MD=2.3  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 23:07:10  38.0N  122.3W ML=2.4  EMSC   SAN PABLO BAY, CALIFORNIA

O: 13FEB2025 13:03:18  37.6N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 12FEB2025 169719    37.1N  121.5W 2.5-4.7 AAAAA  Central California         

P: 16FEB2025 169719    37.3N  121.6W 2.5-4.6 BAAAA  Central California          

 

 

An M 3.9 was also felt in northern Washington State and British Columbia, Canada today. NEIC reported this earthquake of M 3.7 in British  Columbia, Canada was felt with moderate intensity up to II-III in the area(s) of British  Columbia, Canada in Sidney, Chemainus, Duncan, Sooke, Victoria and in Washington State at Olympia (IV), Anacortes, Eastsound, Lopez Island, Point Roberts, Chimacum, Port Townsend and II in Lynnwood, Everett, Coupville, Custer, Friday Harbor, Oak Harbor, Camano Island, Stanwood, Port Angeles, Port Ludlow, Sequim, Vancouver as well as in British Columbia at Cowichan Valley, Nanaimo, Parksville, Sechelt, Walnut Grove and White Rock. EMSC reported shaking for a short period in Victoria, New Songhees, Langford, Central Saanich, North Saanich, and Delta, B.C., Canada an in Washington State in Stanwood, and Port Angeles. Earthquakes of M 3.9-4.0 have most recently occurred within about 200 km of this epicenter on Septeember 26, 2024 and December 24, 2023 but the last event of significantly

larger magnitude was an M 4.9 on December 30, 2015. At the time this summary noted:

 

 

"The most widely felt earthquake of the day was the M 4.9 in the Vancouver Island region on the Puget Sound west of Seattle, Washington. While reported as far as New Mexico and Indiana perceptible shaking from this event was probably limited to an area about 200 km from the epicenter. NEIC reported intensity II-III in communities throughout British Columbia and northwestern Washington State. More intense shaking of intensity IV was reported in Washington at Friday Harbor, La Conner, Lopez Island, Lummi Island, Lynden, Point Roberts, Sumas, Forks, Sekiu, Olympia, Aberdeen, and in British Columbia at Sidney, Abbotsford, Aldergrove, Cowichan Valley, Cumberland, Duncan, Fort Langley, Lillooet, Lions Vay, North Cowichan, Sooke, Vancouver, Victoria, Walnut Grove and White Rock. No major damage or injuries were reported with this earthquake.

 

The Vancouver quake today hit within an hour of local solar midnight and was probably promoted by high tidal stresses which maximize at this time. The last earthquake within about 150 km of this epicenter with M>=4.8 occurred on June 10, 2001 with M 5.0. This was probably an aftershock of the M 6.8 earthquake near Olympia of February 28, 2001." (December 30, 2015)

 

This series is at the fourth node (90 degrees) from the M 7.4 in the Vanuatu Islands of February 8 and may have been promoted by energy from that source.

Earthquakes in California today are near this same distance from Vanuatu.

 

Forecast 169822 had expected today's event within about 100 km was likely around

February 18, 2025.

 

O: 14FEB2025 05:59:18  48.3N  123.3W MB=3.9  ECAN OF VICTORIA, BC   

O: 14FEB2025 05:59:18  48.3N  123.3W ML=3.6  EMSC   VANCOUVER ISLAND, CANADA REGIO

P: 18FEB2025 169822    49.0N  123.0W 2.0-4.1 BAAAA  Washington state, U.S.     

 

A series of light to moderate earthquakes occurred in the Veracruz region of Mexico today. The M 4.0 in Veracruz is the strongest event in that region  since an M 4.5 on January 28, 2024.  Today's events are near the antipode of TC Taliah and may have been promoted by focused energy from that source. The antipode of this typhoon is moving to the north and west and will be in the area of Southern Texas  and Western Texas in the next two days then moving on to southern Colorado. All of these areas could see enhanced seismicity as TC Taliah moves through as noted in this and previous issues of this summary.

 

"Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 75 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 22N 93W is north of, Mexico. It is possible that this area of Central America will see additional enhanced seismicity while Taliah is active." (February 12-14, 2025)

 

O: 13FEB2025 10:54:04  17.7N   95.4W ML=3.5  EMSC   VERACRUZ, MEXICO

O: 13FEB2025 07:04:48  17.5N   94.9W ML=4.0  EMSC   VERACRUZ, MEXICO             

O: 13FEB2025 23:10:52  19.5N   95.0W ML=4.0  EMSC   OFFSHORE VERACRUZ, MEXICO    

P: 15FEB2025 169663    18.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

 

An unusually large M 3.7 was felt in the Virgin Islands today. NEIC reported intensity II-III in the Virgin Islands at Road Town, Tortola and in Puerto Rico at Gurabo and Carolina. The Virgin Islands is another area where antipodal triggering may be occurring. In this case the tropical cyclone is Zelia which is hitting the northwest of Australia at this time. Several earthquake occurred at the antipode to  Zelia today and may have been promoted by focused energy from that typhoon as noted in this and previous issues of this report:

 

"Tropical Cyclone Zelia (18S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 160 kts.  It is expected to track to the south over the next several days. The antipode at 19N  62W is in the northern Caribbean near the Virgin Islands and Puerto Rico.  Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days. A moderate earthquake near Puerto Rico seems likely in the next week." (February 12-14, 2025)

 

Enhanced seismicity in this area of the Virgin Islands and Puerto Rico is

expected in the next several days as TC Zelia makes landfall in Australia.

 

O: 13FEB2025 21:07:15  18.6N   64.7W MD=3.7  EMSC   VIRGIN ISLANDS REGION        

P: 13FEB2025 169670    19.0N   63.0W 3.0-5.1 AABAA  Leeward Islands            

P: 16FEB2025 169670    18.0N   65.0W 3.0-5.0 BAAAA  Leeward Islands            

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 13FEB2025 07:05:21  23.0N   94.3E ML=4.4  EMSC   MYANMAR                      

P: 17FEB2025 169699    23.0N   95.0E 4.0-5.4 BAAAA  Myanmar                    

 

O: 13FEB2025 10:58:33  25.0N   72.2E ML=3.4  EMSC   RAJASTHAN, INDIA             

P: 15FEB2025 169696    24.0N   71.0E 3.5-4.9 AAAAA  India                      

 

O: 14FEB2025 02:02:41  36.7N   71.3E MB=4.0  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 14FEB2025 169729    36.0N   71.0E 3.8-5.3 AAAAA  Hindu Kush/Pakistan        

 

This series is at node 3 (120 degrees) from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

 

O: 13FEB2025 15:39:29  52.2N  160.8E MB=4.3  EMSC   OFF EAST COAST OF KAMCHATKA

P: 12FEB2025 169837    52.0N  159.0E 4.0-5.7 AAAAA  Kamchatka                  

P: 14FEB2025 169835    53.0N  160.0E 4.0-5.8 AAAAA  E. of Kamchatka            

 

INDONESIA AND PHILIPPINES

 

O: 13FEB2025 22:24:20   2.7S  136.3E ML=4.2  EMSC   NEAR N COAST OF PAPUA, INDONESIA

O: 13FEB2025 20:41:57   2.7S  136.3E ML=4.2  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 13FEB2025 169659     2.0S  138.0E 4.0-5.4 AABAA  West Irian, PNG            

 

O: 13FEB2025 20:03:21   3.2S  130.4E ML=4.0  EMSC   SERAM, INDONESIA             

P: 17FEB2025 169642     3.0S  129.0E 4.0-5.7 BABAA  Ceram area                 

 

O: 14FEB2025 00:05:43   4.2S  128.3E ML=4.0  EMSC   BANDA SEA                    

P: 14FEB2025 169642     4.0S  128.0E 4.0-5.6 AAAAA  Ceram area                 

 

O: 13FEB2025 21:07:33   6.1S  103.7E MB=4.8  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 BBBAA  So. of Sumatera            

 

O: 13FEB2025 17:56:12   6.3S  130.9E ML=4.2  EMSC   BANDA SEA                    

P: 12FEB2025 169660     6.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 14FEB2025 02:04:12   7.0N  123.7E ML=4.3  EMSC   MORO GULF, MINDANAO, PHILIPPIN

P: 16FEB2025 169623     7.0N  124.0E 4.0-5.4 AAAAA  Central Philippines        

 

O: 13FEB2025 15:08:07   6.5S  130.2E mb=4.8  EMSC   BANDA SEA

O: 13FEB2025 18:16:22   6.5S  129.0E mb=5.0  EMSC   BANDA SEA

O: 14FEB2025 00:22:57   7.1S  129.7E MW=5.0  EMSC   KEPULAUAN BABAR, INDONESIA   

P: 14FEB2025 169639     8.0S  129.0E 4.0-5.6 AAAAA  Banda Sea                  

 

NEIC reported a earthquakes of M 5.0 and M 4.8 in Banda Sea, Indonesia were felt with moderate intensity up to II-III in the area(s) of Banda Sea, Indonesia at Darwin, Northern Territory, Australia.

This series is at 144 to 146 degrees from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

O: 13FEB2025 17:13:35   8.9N  126.5E ML=4.2  EMSC   MINDANAO, PHILIPPINES        

P: 12FEB2025 169624     8.0N  125.0E 4.0-5.4 AABAA  Central Philippines        

P: 16FEB2025 169624     9.0N  126.0E 4.0-5.6 BAAAA  Central Philippines        

 

O: 13FEB2025 17:44:41  10.4S  123.8E ML=4.2  EMSC   TIMOR REGION, INDONESIA      

P: 15FEB2025 169869    10.0S  124.0E 4.0-5.5 AAAAA  Flores Island area         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 14FEB2025 06:39:49   1.1N   85.3W MW=5.2  EMSC   OFF COAST OF ECUADOR         

P: 18FEB2025 169626     2.0N   85.0W 4.0-5.7 BAAAA  So. of Panama              

 

O: 14FEB2025 00:18:13   6.7N   84.4W MB=4.5  EMSC   OFF COAST OF CENTRAL AMERICA 

P: 12FEB2025 169627     7.0N   82.0W 3.5-5.1 AACAA  Costa Rica                 

P: 14FEB2025 169626     5.0N   83.0W 3.5-5.3 ABBAA  Costa Rica                 

 

O: 13FEB2025 14:25:52  14.8N   98.1W ML=4.0  EMSC   OFF COAST OF OAXACA, MEXICO  

P: 13FEB2025 169684    17.0N   99.0W 3.5-5.7 ACAAA  Oaxaca, Mexico             

 

O: 13FEB2025 22:56:57  15.5N   94.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 13FEB2025 169683    16.0N   96.0W 3.5-5.2 AABAA  Oaxaca, Mexico             

 

O: 13FEB2025 19:52:56  15.6N   93.2W ML=4.1  EMSC   CHIAPAS, MEXICO              

P: 11FEB2025 169663    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

 

O: 13FEB2025 15:04:09  15.6S   74.2W MB=4.6  EMSC   NEAR COAST OF SOUTHERN PERU  

P: 15FEB2025 169877    16.0S   73.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

O: 13FEB2025 12:39:43   4.1S   81.2W ML=4.1  EMSC   NEAR COAST OF NORTHERN PERU  

P: 13FEB2025 169643     3.0S   81.0W 4.0-5.5 ABAAA  Ecuador                    

 

O: 13FEB2025 14:42:33  15.8N   96.2W ML=4.0  EMSC   OAXACA, MEXICO               

P: 13FEB2025 169683    16.0N   96.0W 3.5-5.2 AAAAA  Oaxaca, Mexico             

 

O: 13FEB2025 10:54:04  17.7N   95.4W ML=3.5  EMSC   VERACRUZ, MEXICO

O: 13FEB2025 07:04:48  17.5N   94.9W ML=4.0  EMSC   VERACRUZ, MEXICO             

P: 15FEB2025 169663    18.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico             

 

O: 13FEB2025 12:05:15  18.0N   69.3W ML=3.2  EMSC   DOMINICAN REPUBLIC REGION    

P: 16FEB2025 169686    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 13FEB2025 21:07:15  18.6N   64.7W MD=3.7  EMSC   VIRGIN ISLANDS REGION        

P: 13FEB2025 169670    19.0N   63.0W 3.0-5.1 AABAA  Leeward Islands            

P: 16FEB2025 169670    18.0N   65.0W 3.0-5.0 BAAAA  Leeward Islands            

 

An unusually large M 3.7 was felt in the Virgin Islands today. NEIC reported intensity II-III in the Virgin Islands at Road Town, Tortola and in Puerto Rico at Gurabo and Carolina.

This epicenter is near the antipode of TC Zelia and may have been promoted

by focused energy from that source.

 

O: 14FEB2025 01:29:26  18.7N   67.1W MD=3.2  EMSC   PUERTO RICO REGION           

O: 13FEB2025 13:23:11  18.1N   66.8W MD=3.1  EMSC   PUERTO RICO

P: 15FEB2025 169685    18.0N   67.0W 3.4-6.1 AAAAA  Puerto Rico                

 

O: 13FEB2025 23:10:52  19.5N   95.0W ML=4.0  EMSC   OFFSHORE VERACRUZ, MEXICO    

P: 15FEB2025 169663    18.0N   95.0W 3.5-5.3 ABAAA  Chiapas, Mexico            

 

This epicenter is near the antipode of TC Taliah and may have been promoted

by focused energy from that source. The antipode of this typhoon is moving

to the north and west and will be in the area of Southern Texas  and Western

Texas in the next two days then moving on to southern Colorado. All of these

areas could see enhanced seismicity as TC Taliah moves through as noted in this

and previous issues of this summary.

 

"Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 75 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 22N 93W is north of, Mexico. It is possible that this area of Central America will see additonal enhanced seismicity while Taliah is active." (February 12-14, 2025)

 

 

 

O: 13FEB2025 10:32:04  23.3N  110.2W ML=3.2  EMSC   BAJA CALIFORNIA SUR, MEXICO  

P: 14FEB2025 169694    26.0N  110.0W 3.5-5.8 ACAAA  Gulf of California         

 

O: 13FEB2025 10:46:57  24.9S   70.9W MB=4.9  EMSC   OFFSHORE ANTOFAGASTA, CHILE  

P: 12FEB2025 169888    24.0S   69.0W 4.0-6.1 AABAA  Coast No. Chile            

 

O: 13FEB2025 07:11:29  29.0S   71.4W MW=4.7  EMSC   ATACAMA, CHILE               

P: 15FEB2025 169887    29.0S   71.0W 4.0-5.6 AAAAA  Coast Central Chile        

 

AFRICA AND EUROPE

 

O: 13FEB2025 20:44:56  45.5N   26.4E MB=4.3  EMSC   ROMANIA                      

P: 16FEB2025 169814    46.0N   27.0E 3.0-5.1 BAAAA  Romania/NW Turkey          

 

This series is at the fourth node (90 degrees) from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

NEIC reported an earthquake of M 4.3 in Romania was felt with moderate intensity up to II-III in the area(s) of Romania at Guriu Ilfov.

EMSC reported moderate shaking in Romania at Buzau, Campina, Ghiosesti, Ploiesti, Independenta, Ostratu, Bucharest, Barlad, Braila, Petesti, Crevedia Mica, Calarsi, and as far as Ruse, Bulgaria, and Chisnau, Moldova.

 

O: 13FEB2025 11:16:10   0.2S   29.7E MB=4.7  EMSC   LAKE EDWARD REGION, UGANDA   

P: 19FEB2025 169646     2.0S   29.0E 3.0-4.4 CBAAA  Lake Victoria area         

 

NEIC reported an earthquake of M 4.7 in Uganda was felt with moderate intensity up to IV in the area(s) of Uganda at Kireka, Kanungu, Bushenyi, Mbarara, II-III in Entebbe, Kajansi, Kampala and Kisoro.

EMSC reported moderate shaking in Uganda at Kawempe.

 

O: 13FEB2025 14:57:27  27.8S   30.4E ML=3.0  EMSC   SOUTH AFRICA                 

P: 16FEB2025 169891    26.0S   28.0E 3.0-4.6 BBBAA  Rep. South Africa          

 

O: 13FEB2025 15:42:22  36.6N   25.7E MB=4.7  EMSC   DODECANESE ISLANDS, GREECE   

O: 13FEB2025 15:40:08  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

P: 12FEB2025 169709    36.0N   25.0E 3.0-5.6 AAAAA  Aegean Sea                 

P: 15FEB2025 169709    36.0N   26.0E 3.0-5.6 AAAAA  Aegean Sea                  

 

O: 13FEB2025 12:12:01  43.9N   39.7E MB=4.4  EMSC   CAUCASUS REGION, RUSSIA      

P: 17FEB2025 169770    39.0N   40.0E 3.5-4.9 BCAAA  Turkey                     

 

EMSC reported an earthquake of M 4.3 in the Caucasus was felt with  intensity up to IV in the area(s) of the Caucasus at Kroyanskoye, Vardane, Lazarevskoye, Nizhneye Uchdere, Loos, Plastunka, Dagomys, Mamayskiy Pereval, Otel, Sochi, Svetlana, Bykhta among others. and Sochi.

 

 

SOUTHWEST PACIFIC

 

O: 13FEB2025 21:29:54  20.8S  178.4W MB=4.5  EMSC   FIJI REGION                  

P: 13FEB2025 169895    20.0S  178.0W 4.0-5.4 AAAAA  Tonga Islands              

 

This series is at 102 degrees from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

O: 13FEB2025 12:18:38  20.6S  168.9E MB=4.9  EMSC   LOYALTY ISLANDS              

P: 12FEB2025 169889    21.0S  170.0E 4.0-5.5 AAAAA  Loyalty Islands            

 

No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.

 

OCEAN RIDGES

 

 

O: 13FEB2025 21:20:55  58.8S   25.5W MB=4.8  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 13FEB2025 169916    60.0S   26.0W 4.0-5.8 ABAAA  So. Sandwich Islands       

P: 17FEB2025 169915    58.0S   26.0W 4.0-5.9 BAAAA  So. Sandwich Islands       

 

This series is at 148 from the M 6.8 in the Kyushu of January 13 and may have been promoted by energy from that source.

This series is at node 4 (90 degrees) from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

 

 

ZEALANDIA AND AUSTRALIA REGION

 

No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia

today.

 

JAPAN AND KURIL ISLANDS

 

O: 14FEB2025 01:32:54  45.4N  151.2E MB=4.9  EMSC   KURIL ISLANDS                 

P: 15FEB2025 169818    47.0N  151.0E 3.5-5.4 ABAAA  So. Kurils                 

 

This series is at 101 degrees from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 13FEB2025 23:53:47  36.1N  114.9W ML=2.0  EMSC   LAS VEGAS URBAN AREA, NEVADA 

O: 13FEB2025 17:59:42  36.6N  114.8W ML=2.2  EMSC   NEVADA                       

P: 15FEB2025 169712    37.8N  115.8W 2.5-5.1 ABAAA  California/Nevada area     

 

O: 14FEB2025 04:10:22  38.4N  122.3W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P: 15FEB2025 169720    38.5N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 13FEB2025 16:55:31  38.5N  118.5W ML=2.1  EMSC   NEVADA                        

P: 13FEB2025 169714    38.2N  118.8W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 13FEB2025 21:00:27  38.8N  122.7W MD=2.2  EMSC   NORTHERN CALIFORNIA          

O: 13FEB2025 11:44:39  38.8N  122.8W MD=2.4  EMSC   NORTHERN CALIFORNIA          

P: 15FEB2025 169720    38.5N  122.7W 2.5-4.6 AAAAA  Central California         

 

NEIC reported an earthquake of M 2.2 in Geysers, California was felt with moderate intensity up to II-III in the area(s) of Geysers, California in Moraga and Pleasanton.

 

O: 13FEB2025 09:51:29  40.4N  125.0W ML=3.1  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 12FEB2025 169804    40.5N  125.3W 2.5-4.4 AAAAA  Off Coast of No. Calif     

P: 14FEB2025 169805    40.5N  124.6W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

NEIC reported an earthquake of M 2.9 near the coast of Northern California was felt with moderate intensity up to II-III in the area(s) of Northern California at Eureka.

 

 

O: 13FEB2025 19:52:13  37.6N  122.1W ML=3.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 19:54:14  37.6N  122.1W ML=3.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 22:24:06  37.6N  122.0W MD=2.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 21:59:16  37.7N  122.1W ML=3.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 00:45:06  37.9N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 14FEB2025 03:22:48  37.9N  122.0W MD=2.3  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 13FEB2025 23:07:10  38.0N  122.3W ML=2.4  EMSC   SAN PABLO BAY, CALIFORNIA

O: 13FEB2025 13:03:18  37.6N  122.1W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 12FEB2025 169719    37.1N  121.5W 2.5-4.7 AAAAA  Central California         

P: 16FEB2025 169719    37.3N  121.6W 2.5-4.6 BAAAA  Central California         

 

O: 13FEB2025 17:03:05  38.1N  118.0W ML=2.5  EMSC   NEVADA

 

O: 13FEB2025 19:40:04  40.2N  124.4W MD=2.9  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 13FEB2025 07:06:35  40.3N  124.6W ML=3.3  EMSC   OFFSHORE NORTHERN CALIFORNIA

 

ALASKA

 

 

O: 13FEB2025 18:12:17  51.3N  179.9W ML=3.5  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 16FEB2025 169830    51.2N  179.9W 3.5-5.1 BAAAA  Andreanoff Isls, Aleutians 

 

O: 13FEB2025 15:05:28  55.7N  154.8W ML=3.3  EMSC   SOUTH OF ALASKA

O: 13FEB2025 23:59:26  55.8N  155.2W MW=5.8  EMSC   SOUTH OF ALASKA              

P: 16FEB2025 169826    54.8N  158.7W 3.5-4.9 BABAA  Alaska Peninsula           

 

O: 13FEB2025 20:52:15  60.4N  152.1W ML=3.2  EMSC   SOUTHERN ALASKA              

P: 14FEB2025 169851    60.2N  153.2W 3.2-5.1 AAAAA  Central Alaska             

 

NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska at Anchorage and Kenai.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 14FEB2025 05:59:18  48.3N  123.3W MB=3.9  ECAN OF VICTORIA, BC   

O: 14FEB2025 05:59:18  48.3N  123.3W ML=3.6  EMSC   VANCOUVER ISLAND, CANADA REGIO

P: 18FEB2025 169822    49.0N  123.0W 2.0-4.1 BAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 13FEB2025 18:30:41  30.0N  103.3W ML=2.9  EMSC   WESTERN TEXAS                 

P: 15FEB2025 169748    31.5N  103.6W 2.0-4.0 ABAAA  SW U.S.A                   

 

NEIC reported an earthquake of M 2.9 in southwestern Texas was felt with  intensity up to II in the area(s) of El Paso, Texas.

 

O: 13FEB2025 17:32:40  32.3N  101.8W ML=2.2  EMSC   WESTERN TEXAS                

P: 15FEB2025 169748    31.5N  103.6W 2.0-4.0 AABAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 13FEB2025 16:38:35  35.7N   88.7W ML=2.5  EMSC   TENNESSEE                    

P: 17FEB2025 169735    36.3N   89.5W 2.0-3.9 BAAAA  New Madrid area            

 

NEIC reported an earthquake of M 2.4 in Western Tennessee was felt with moderate intensity up to IV in the area(s) of Western Tennessee at Oakfield; III in Jackson, Humboldt, Medon, Dickson and as far as Jackson Mississippi, Loganville, Georgia and Florence, Alabama.

 

O: 13FEB2025 07:03:44  46.2N   75.5W MB=1.1  ECAN OF NOTRE-DAME-DE-PONTMAIN, QC  

P: 18FEB2025 169799    45.0N   75.0W 2.0-4.0 BBAAA  New York State             

P: 19FEB2025 169799    47.0N   76.0W 2.0-4.1 CAAAA  New York State             

 

HAWAII

 

O: 13FEB2025 16:31:08  20.2N  155.8W ML=3.0  EMSC   HAWAII REGION, HAWAII        

P: 14FEB2025 169695    20.4N  155.1W 4.0-5.7 AAAAA  Hawaii area                

 

NEIC reported an earthquake of M 3.1 in Hawaii was felt with moderate intensity up to II-III in the area(s) of Hawaii at Kapaau, Kamuela and II in Hawi and Waikoloa.

 

QUIET DAY WITH FULL MOON BUT WATCHES STILL IN EFFECT

 

EARTHQUAKE SUMMARY FOR FEBRUARY 12, 2025

 

Today was a relatively quiet day in global seismicity. The largest event was an M 5.3 in the South Sandwich Islands. The largest event felt occurred in northeastern Honshu, Japan. The series in the Dodecanese Islands took a lull with much less activity than usual but saw an M 5.1 and 4.6 among today's limited number of events.

 

In the U.S. and possessions  an M 3.3 followed a series of events in California yesterday which included an M 4.1 and an M 4.5. The swarm in Yellowstone ceased. There is some danger of enhanced seismicity in Puerto Rico and the Virgin Islands however. Tropical Cyclone Zelia off northwestern Australia has expanded into a major storm with winds up to 160 kts. Zelia is antipodal to the northeastern Caribbean including the Virgin Islands and Puerto Rico. The area of Puerto Rico saw enhanced seismicity today after several days of reduced earthquakes. It is likely that this renewal of seismicity in  this region is promoted by antipodally focused energy from TC Zelia and could lead to a larger event in the next several days in the northeastern  Caribbean. The strongest event in that area today was an M 3.6. 

 

Readers should also be reminded that there is still a seismic watch out for the area of the west coast of the U.S. including Alaska and California. This was noted in previous issues of this summary as:

 

 

"Following the massive fires in January and February, 2005, this summary began watching seismicity of this region. As energy from TC Vince matches the  full moon and energy from the M 7.6 in the Cayman Islands at about the right time for unloading effects from the fires, conditions in Southern California (Simi Valley, L.A. California is at the 10th node (36.0 degrees) from the Cayman Islands epicenter)and northern Baja and the Gulf of California appear to be optimized in mid-February to trigger a moderate (or possibly large) earthquake in that area in the coming week." (February 9-10, 2025).

 

This is emphasized as a strong storm hit the northeast over the past day. Such storms often accompany enhanced seismicity in California or Alaska as noted in many previous issues of this summary. This watch was later extended to northern California and eventually to Alaska and is in effect for two  more days. A seismic watch is called when environmental conditions in an area could induce enhanced seismicity in a limited time period.

 

The strongest earthquake in the U.S. or Canada today was an M 4.4 in British Columbia, Canada. The last earthquake within about 200 km of this epicenter in British Columbia of M>=4.4 occurred on August 17, 2015 with M 4.6. Two other earthquake of M>=4.6 have hit in this area in the past 35 years - an  M 5.3 on April 14, 2001 and an M 5.0 on December 26, 1992. In August, 2015  this summary noted in this regard:

 

 

 

"The strongest earthquakes in the U.S. or Canada today occurred in British Columbia, Canada as an M 4.3-4.5  west of Fort St. John and an M 4.9 in the Vancouver Island region. The earthquake near Fort St. John was remote and there were few reports of felt activity, but Earthquakes Canada did report it was felt in Charlie Lake, British Columbia. There was no damage reported. The last earthquake of M>=4.3 within about 200 km of this epicenter occurred on May 22, 1994 with M 4.3. The only other such event in the past 25 years was an M 5.0 on December 26, 1992. Both of these occurred about 150 km southeast of today's epicenter." (August 17, 2015)

 

This epicenter is near the seventh node (51 degrees) from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source. Other activity at this distance from the Cayman Islands today occurred near Vancouver, British Columbia.

 

The earthquake is located at the fifth node (72 degrees) from the M 6.8 in Kyushu of January 13, 2025 and may have been promoted by energy from that source.

 

Forecast 169828 had expected this event within about 100 km was likely around February 13, 2025.

 

 

O: 12FEB2025 08:47:53  56.9N  122.1W ML=4.4  EMSC   BRITISH COLUMBIA, CANADA     

P: 13FEB2025 169828    56.0N  122.0W 2.0-4.3 AAAAA  Alberta                    

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 12FEB2025 09:00:50  46.0N  104.4E MB=4.3  EMSC   CENTRAL MONGOLIA             

P: 14FEB2025 169790    45.0N  102.0E 4.0-5.5 AABAA  Mongolia                   

 

No significant (M>=5) or unusual earthquakes were reported in Asia today.

 

INDONESIA AND PHILIPPINES

 

Earthquakes in Halmahera, Banda Sea and Talaud Islands today occurred at 144 degrees

from the M 7.6 in the Cayman Islands of February 8 and may have been promoted by energy from that source.

 

 

O: 12FEB2025 06:53:36   1.7N  127.3E mb=4.9  EMSC   HALMAHERA, INDONESIA

O: 13FEB2025 03:59:39   3.7N  127.9E ML=4.2  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 20FEB2025 169629     2.0N  129.0E 4.0-5.4 CBAAA  Halmahera                  

 

O: 12FEB2025 10:13:57   3.8S  103.4E MB=4.7  EMSC   SOUTHERN SUMATRA, INDONESIA  

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 BBBAA  So. of Sumatera             

 

O: 12FEB2025 13:58:21   6.0S  130.5E ML=4.3  EMSC   BANDA SEA                    

P: 12FEB2025 169660     6.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 12FEB2025 11:07:13   6.1N   94.5E ML=4.0  EMSC   NICOBAR ISLANDS, INDIA REGION

P: 12FEB2025 169635     5.0N   95.0E 4.0-5.5 ABAAA  Nicobar Islands            

 

O: 13FEB2025 06:27:12   8.6S  118.4E MB=4.6  EMSC   SUMBAWA REGION, INDONESIA    

O: 12FEB2025 07:02:49   8.3S  119.7E ML=4.2  EMSC   FLORES REGION, INDONESIA

P: 12FEB2025 169657     9.0S  119.0E 4.0-5.6 AAAAA  Sumbawa Island area        

 

O: 12FEB2025 08:08:25  12.0N  125.5E MB=4.8  EMSC   SAMAR, PHILIPPINES           

P: 10FEB2025 169409    13.0N  124.0E 3.5-5.1 AABAA  Luzon, Philippines         

 

CENTRAL AND SOUTH AMERICA

 

O: 12FEB2025 09:26:37  26.4N  110.7W ML=3.8  EMSC   GULF OF CALIFORNIA           

P: 14FEB2025 169694    26.0N  110.0W 3.5-5.8 AAAAA  Gulf of California         

 

O: 12FEB2025 17:26:50   4.3N   78.5W MW=4.8  EMSC   SOUTH OF PANAMA              

P:  3FEB2025 169362     5.0N   78.0W 4.0-5.7 CAAAA  Colombia                   

 

O: 13FEB2025 05:26:06  14.3N   92.6W ML=4.2  EMSC   OFFSHORE CHIAPAS, MEXICO     

O: 13FEB2025 03:58:52  14.8N   93.4W ML=4.1  EMSC   OFFSHORE CHIAPAS, MEXICO

P: 13FEB2025 169667    15.0N   92.0W 3.5-5.1 AAAAA  Guatemala                  

 

O: 12FEB2025 23:02:50  16.4N   98.0W ML=4.0  EMSC   OAXACA, MEXICO

O: 13FEB2025 01:04:17  16.3N   98.0W ML=4.1  EMSC   OAXACA, MEXICO               

P: 13FEB2025 169684    17.0N   99.0W 3.5-5.7 AAAAA  Oaxaca, Mexico             

 

O: 13FEB2025 00:08:48  17.2N  101.4W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 15FEB2025 169676    18.0N  101.0W 3.5-5.1 AAAAA  Michoacan, Mexico          

 

O: 12FEB2025 22:10:36  17.5N   83.3W MW=4.8  EMSC   NORTH OF HONDURAS            

P: 12FEB2025 169662    17.0N   83.0W 3.5-5.1 AAAAA  Caribbean Sea              

 

O: 13FEB2025 07:04:48  17.5N   94.9W ML=4.0  EMSC   VERACRUZ, MEXICO             

P: 15FEB2025 169663    18.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 12FEB2025 08:22:16  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 12FEB2025 169676    19.0N  102.0W 3.5-5.1 AAAAA  Michoacan, Mexico          

 

O: 13FEB2025 06:52:05  19.2N   66.6W MD=3.5  EMSC   PUERTO RICO REGION           

P: 13FEB2025 169685    18.0N   66.0W 3.4-5.3 ABAAA  Puerto Rico                

 

O: 12FEB2025 21:32:40  23.9S   67.1W ML=4.0  EMSC   SALTA, ARGENTINA

O: 12FEB2025 17:43:26  24.2S   67.2W MB=4.3  EMSC   SALTA, ARGENTINA             

P: 15FEB2025 169886    24.0S   67.0W 4.0-5.6 BAAAA  Argentina                  

 

 

AFRICA AND EUROPE

 

EMSC reported an earthquake of M 3.9 in the Caucasus was felt with  intensity up to IV in the area(s) of the Caucasus at Kroyanskoye and Sochi.

 

O: 12FEB2025 08:29:51  36.6N   25.6E mb=5.0  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 08:37:48  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 08:56:00  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 08:58:45  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 09:15:07  36.6N   25.6E Mw=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 09:20:42  36.6N   25.6E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 10:02:12  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 18:34:25  36.6N   25.7E Mw=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 21:05:07  36.6N   25.7E Mw=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 23:02:38  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 23:03:31  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 16:44:26  36.7N   25.8E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 08:30:55  36.5N   25.5E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE   

P: 12FEB2025 169709    36.0N   25.0E 3.0-5.6 AAAAA  Aegean Sea                 

 

EMSC reported an earthquake of M 5.1 and M 4.6 in the Dodecanese Islands, Greece were felt with  intensity up to IV in the area(s) of the Dodecanese Islands, Greece at Thira, Agios Georgios, Naxos, Trypiti, Goyrnes, Heraklion.

 

O: 12FEB2025 09:42:22   8.9N   39.9E MB=4.4  EMSC   ETHIOPIA                     

P: 13FEB2025 169665     9.0N   40.0E 3.5-5.1 AAAAA  Ethiopia                   

 

SOUTHWEST PACIFIC

 

O: 12FEB2025 12:43:05  26.3S  178.6E MB=4.6  EMSC   SOUTH OF FIJI ISLANDS        

P: 18FEB2025 169889    23.0S  172.0E 4.0-5.6 CCCAA  Loyalty Islands            

 

No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.

 

OCEAN RIDGES

 

O: 12FEB2025 11:56:53  38.6S   91.7W MB=4.6  EMSC   WEST CHILE RISE              

P:  6FEB2025 169609    41.0S   91.0W 4.0-5.8 CCAAA  Chile Rise                 

P: 19FEB2025 169908    41.0S   91.0W 4.0-5.4 CCAAA  Chile Rise                 

 

O: 12FEB2025 19:54:08  56.2S   27.1W MB=5.3  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 12FEB2025 169915    57.0S   26.0W 4.0-5.8 AAAAA  So. Sandwich Islands       

P: 14FEB2025 169915    56.0S   26.0W 4.0-6.0 AAAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia

today.

 

JAPAN AND KURIL ISLANDS

 

O: 12FEB2025 21:04:30  38.4N  142.0E MB=5.0  EMSC   NEAR EAST COAST OF HONSHU,   

P: 14FEB2025 169762    38.0N  143.0E 4.0-5.4 AAAAA  So. of Honshu              

 

NEIC reported an earthquake of M 5.0 in northeastern Honshu, Japan was felt with moderate intensity up to II-III in the area(s) of northeastern Honshu, Japan in Yamagata.

 

O: 12FEB2025 14:37:36  39.1N  141.9E MB=4.8  EMSC   EASTERN HONSHU, JAPAN        

P: 14FEB2025 169744    39.0N  141.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

O: 12FEB2025 15:59:54  44.5N  148.9E MB=4.2  EMSC   KURIL ISLANDS                

P: 12FEB2025 169816    45.0N  148.0E 3.5-5.9 AAAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 12FEB2025 15:15:38  34.2N  117.3W ML=2.4  EMSC   GREATER LOS ANGELES AREA, CALI

P: 12FEB2025 169756    34.3N  117.5W 2.5-4.6 AAAAA  So. California             

 

NEIC reported an earthquake of M 2.4 in Los Angeles, California was felt with moderate intensity up to II-III in the area(s) of Los Angeles, California at San Bernardino with II in Buena Pak, Rancho Cucamonga, Grand Terrace, Crestline, Riverside, Irvine and Yorba Linda.

 

O: 13FEB2025 01:32:59  37.3N  117.7W ML=2.1  EMSC   CENTRAL CALIFORNIA           

O: 13FEB2025 04:28:21  37.7N  117.7W ML=2.0  EMSC   NEVADA

P: 13FEB2025 169711    37.4N  117.2W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 13FEB2025 03:19:59  38.8N  122.8W MD=2.1  EMSC   NORTHERN CALIFORNIA

O: 12FEB2025 17:03:03  38.8N  122.9W MD=2.1  EMSC   NORTHERN CALIFORNIA          

P: 13FEB2025 169720    38.7N  122.7W 2.5-4.5 AAAAA  Central California         

 

O: 12FEB2025 10:47:56  40.3N  124.4W MD=2.0  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 12FEB2025 09:22:49  40.4N  125.1W MD=3.0  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 12FEB2025 09:22:49  40.4N  125.1W MD=3.3  ANSS   OFFSHORE NORTHERN CALIFORNIA

O: 12FEB2025 07:01:46  40.3N  124.7W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 12FEB2025 169804    40.5N  125.3W 2.5-4.4 AAAAA  Off Coast of No. Calif     

P: 14FEB2025 169805    40.5N  124.6W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

NEIC reported an earthquake of M 3.3 off the coast of Northern California  was felt with moderate intensity up to II-III in the area(s) of  Northern California at Fortuna and Bella Vista and II in Eureka and Petrolia.

 

O: 13FEB2025 05:40:27  41.9N  119.6W ML=2.8  EMSC   NEVADA                       

O: 13FEB2025 05:49:50  41.9N  119.6W ML=2.9  EMSC   NEVADA

P: 12FEB2025 169778    40.5N  119.5W 2.5-4.6 ABAAA  California/Nevada area     

 

ALASKA

 

O: 12FEB2025 10:49:50  55.3N  159.7W ML=3.8  EMSC   ALASKA PENINSULA             

P: 14FEB2025 169847    54.7N  161.2W 3.5-4.9 AAAAA  Unimak Islands, Aleutians  

 

NEIC reported an earthquake of M 3.8 in the Alaska Peninsula was felt with moderate intensity up to II-III in the area(s) of the Alaska Peninsula in Sand Point (IV) and King Cove (II).

 

O: 13FEB2025 05:06:37  55.8N  142.8W ML=3.0  EMSC   GULF OF ALASKA               

P: 12FEB2025 169846    57.9N  139.0W 3.0-4.6 ABBAA  Southeast Alaska           

 

O: 13FEB2025 00:48:54  65.4N  168.4W ML=3.3  EMSC   BERING STRAIT                

P: 14FEB2025 169858    66.0N  167.8W 3.0-5.0 AAAAA  Northern Alaska            

 

This earthquake is located at the fifth node (72 degrees) from the M 7.6 in Cayman Islands of February 8, 2025

and may have been promoted by energy from that source.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 12FEB2025 08:47:53  56.9N  122.1W ML=4.4  EMSC   BRITISH COLUMBIA, CANADA     

P: 13FEB2025 169828    56.0N  122.0W 2.0-4.3 AAAAA  Alberta                    

 

O: 12FEB2025 04:35:15  51.3N  131.1W MB=2.3  ECAN OF PORT HARDY, BC              

P: 12FEB2025 169832    50.7N  130.5W 3.0-5.2 AAAAA  British Colombia           

 

ROCKY MOUNTAINS REGION

 

O: 12FEB2025 07:21:35  31.3N  103.4W ML=2.1  EMSC   WESTERN TEXAS

O: 12FEB2025 23:37:55  32.0N  103.8W ML=2.8  EMSC   NEW MEXICO

O: 12FEB2025 23:59:18  32.0N  103.8W ML=2.8  EMSC   NEW MEXICO                   

P: 15FEB2025 169748    31.5N  103.6W 2.0-4.0 BAAAA  SW U.S.A                   

 

O: 13FEB2025 06:05:09  48.2N  116.4W ML=2.6  EMSC   NORTHERN IDAHO               

P: 16FEB2025 169793    47.7N  117.4W 2.0-4.3 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 12FEB2025 14:31:43  35.1N   97.6W ML=2.1  EMSC   OKLAHOMA

O: 12FEB2025 19:01:09  35.1N   97.6W ML=2.3  EMSC   OKLAHOMA

O: 12FEB2025 20:07:15  36.4N   98.1W ML=2.1  EMSC   OKLAHOMA                      

P: 10FEB2025 169493    36.0N   97.0W 2.0-4.2 AAAAA  Southern Plains            

 

NEIC reported an earthquake of M 2.0 in Oklahoma was felt with moderate intensity up to II-III in the area(s) of Oklahoma at Blanchard and Purcell.

 

O: 13FEB2025 06:45:37  47.5N   70.0W MB=1.5  ECAN OF LA MALBAIE, QC  

O: 13FEB2025 06:44:41  47.5N   70.0W MB=1.3  ECAN OF LA MALBAIE, QC  

O: 13FEB2025 00:28:32  47.5N   70.0W MB=0.8  ECAN OF LA MALBAIE, QC  

O: 12FEB2025 12:33:45  47.5N   70.0W MB=0.3  ECAN OF LA MALBAIE, QC              

P:  9FEB2025 169514    47.0N   70.0W 2.0-4.2 BAAAA  Maine                      

P: 13FEB2025 169789    47.0N   69.0W 2.0-4.1 AAAAA  Maine                      

 

O: 13FEB2025 07:03:44  46.2N   75.5W MB=1.1  ECAN OF NOTRE-DAME-DE-PONTMAIN, QC  

P: 18FEB2025 169799    45.0N   75.0W 2.0-4.0 BBAAA  New York State             

P: 19FEB2025 169799    47.0N   76.0W 2.0-4.1 CAAAA  New York State             

 

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

MODERATE QUAKES SHAKES NORTHERN CALIFORNIA

 

EARTHQUAKE SUMMARY FOR FEBRUARY 11, 2025

 

 

An earthquake of M 4.5 was widely felt in Northern California today. This event was reported by NEIC to have been felt with intensity up to IV in California at Rio Dell; III in Mendocino, Eureka, Ferndale, Fortuna, Hydesville, Loleta, Myers Flat, Petrolia, Scotia, Redcrest, Leggett, Whitethorn and II in Fort Bragg, Eureka, McKinleyville, Arcata, Bayside, Carlotta, Garberville, Redway and Trinidad. A foreshock closer to the coast of California occurred within minutes of local solar midnight and may have been promoted by tidal stresses which maximize near this hour with today's full moon. NEIC reported this earthquake was felt with intensity up to IV in Ferndale, Scotia; III in Fremont, Hayward, Morgan Hill, Linden, Eureka, Alderpoint, Carlotta, Fortuna, Loleta, Myers Flat, Petrolia, Rio Dell and II in Castro Valley, Eureka, Arcata, Garberville, Hydesville and Whitethorn, California. The felt reports around the San Francisco area may have been mistakenly attributed to the M 4.1 off northern California. An M 2.4 earthquake in the San Francisco Bay area of California followed 3.5 minutes after the M 4.1 off northern California. Earlier foreshocks of M 2.6 and M 2.8 were lightly felt in northern California.

 

The M 4.5 off northern California is the strongest event in that region since an M 5.3 on December 15, 2024 - an aftershock of the M 7.0 of December 5, 2024, as is today's. At the time of the mainshock this summary noted:

 

 

"A major earthquake of M 7.0-7.3 occurred on December 5, 2024 near local noon off the coast of Northern California. It was followed by a series of moderate felt classical aftershocks and a series of regional aftershocks. A pair of foreshocks occurred on December 4, 2024 and were described in this summary in the previous issue as:

 

"The strongest earthquakes in the U.S. or Canada today were an M 4.4 and M 4.2 off the coast of northern California. NEIC reported they may have been felt lightly in Eureka and Arcata, and at Orick and Antelope with intensity II-III in  California. The M 4.4 is the strongest event within about 100 km of this epicenter since an M 4.4 on October 24. The only other event of M>=4.4 in this area in the past year was and M 4.9 on February 2, 2024. At the time this summary noted:

 

 

"An earthquake of M 4.9 also occurred today off the coast of Northern California. NEIC reported it was felt with intensity III in Northern California at Petrolia. NEIC reported an aftershock of M 3.4 off the coast of Northern California  was felt with intensity up to III in the area(s) of Northern California in Petrolia. NEIC reported this earthquake of M 3.4 off the coast of Northern California  was felt with intensity up to III in the area(s) of Northern California in Petrolia. EMSC reported moderate shaking in Fortuna, California.  A foreshock of M 2.7-3.3 was also felt lightly in Petrolia, California. The last earthquake off the coast of Northern California with M>=4.9 occurred on May 21, 2023 and today's event is probably an aftershock of that mainshock." (December 5, 2024)

 

This epicenter is at 104 degrees from the M 7.1 in Tibet January  7, 2025 and may have been promoted by energy from that source.

 

Forecast 169804 had expected a moderate event within about 25 km of this epicenter was likely around February 12.

 

O: 11FEB2025 08:13:16  40.3N  124.6W Mw=3.8  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 11:20:11  40.3N  124.6W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 14:34:41  40.3N  125.1W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 18:55:29  40.3N  125.0W MD=2.3  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 19:13:40  40.3N  124.9W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 12FEB2025 07:01:46  40.3N  124.7W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 14:24:28  40.4N  124.9W MD=2.8  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 12FEB2025 04:32:40  40.4N  125.1W MW=4.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 12FEB2025 169804    40.5N  125.3W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

 

The M 2.4 in San Francisco at 3.3 degrees from the M 4.1 off northern California, both within minutes of local solar midnight. Surface waves from the M 4.1 would have arrived in this area as the M 2.4 was occurring and may have  triggered it. A similar situation occurred minutes later when a swarm occurred in Yellowstone National Park, Wyoming. NEIC reported this event was felt with intensity up to III in California at Hayward, Castro Valley and San Leandro and Union City with II in Sausalito, California.

 

Forecast 169719 had expected this event within about 50 km was likely

Around February 12, 2025.

 

O: 11FEB2025 08:16:54  37.6N  122.1W MD=2.4  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 12FEB2025 169719    37.1N  121.5W 2.5-4.7 AAAAA  Central California         

 

A strong series of minor earthquakes also occurred today in the Yellowstone

National Park area, Wyoming. These were not reported felt. They began about 7 minutes after the event off northern California with an M 0.9 but were quickly followed by events of M 2.6, 2.3, 2.1, 2.4, .....  The swarm was over within about an hour and did not repeat at local solar noon later in the day, as might have been expected if it was related to the full moon tides of February 12, 2025. Surface waves from the M 4.1 off northern  California at a distance of 11 degrees would have arrived about the time this swarm in Yellowstone began and may have triggered it.

 

The area of Yellowstone is nearly antipodal to the dissipation point of Tropical Cyclone Vince in the South Indian Ocean and may have been promoted by energy from that source.

 

Several events to the east of this epicenter have occurred in the past  two days. These appear to be related to mining or blasting activity in the area as this and a series of similar event of M 3.0-3.1 have hit the area since December,

2024.

 

 

O:  9FEB2025 14:39:27  41.6N  109.9W ML=3.0  EMSC   WYOMING                      

P:  7FEB2025 169504    41.9N  108.7W 2.0-3.9 AAAAA  Colorado area              

 

The last earthquake in Yellowstone with M>=2.6 occurred on January 29 with M 3.7.  At the time this summary noted:

 

 

The strongest earthquake in the U.S. or Canada today was an M 3.9-4.0 in the region of Yellowstone National Park, Wyoming. NEIC reported it was felt in the Yellowstone area with intensity III in Gardiner, West Yellowstone, Montana and Yellowstone National Park. This event occurred in the Norris Geyser Basin, one of the oldest and most visited areas of Yellowstone where hot geysers commonly erupt. This earthquake, like that in New Zealand (see above) occurred at 105 degrees from the M 7.1 in Tibet of January 7, 2025 and was probably promoted by energy from that source. The last earthquake of M>=4.0 in the Yellowstone area occurred ten years ago as an M 4.8 on March 30, 2014. Like today's event that earthquake occurred with the new moon." (January 29, 2025)

 

Note that today's swarm is also closely linked to the full moon of February 12.

 

Forecast 169824 had expected today's activity in Yellowstone was likely within  about 25 km around February 12, 2025.

 

O: 11FEB2025 08:35:56  44.4N  110.6W ML=2.2  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:38:45  44.4N  110.5W ML=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:44:07  44.4N  110.5W ML=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:52:36  44.4N  110.5W ML=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 10:38:08  44.4N  110.6W ML=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:35:13  44.2N  110.4W ML=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 12FEB2025 169824    44.2N  110.3W 2.0-4.1 AAAAA  Yellowstone/Wyoming        

 

The most widely felt earthquake in the world today was an M 4.6 (NEIC) to M 5.0 (EMSC) in Croatia. NEIC reported maximum intensity V in Zadar, Croatia at Policnik, Posedarje, Zadar and IV in Urbisaglia, Marken, Italy. It was also felt with intensity III in Bosnia and Herzegovina, Giulia, Italy, Croatia, Slovenia and the Czech Republic. EMSC reported moderate Shaking in Croatia at Starigrad, Seline, Slivnica, Lovinac, Tribanj, Posedarje, Radovin, Novigrad, Obrovac among others and as far as Hungary and Montenegro, Belgrade, Serbia and Naples, Italy.

This continues enhanced seismicity throughout much of eastern Europe which  has included in the past week a swarm in the Dodecanese Islands, an M 5.0 in Sicily, Several moderate earthquakes in northern and Central Greece and Romania and  an M 5.0 in Gibraltar. Many of these area near the fourth node from the M 7.6 in the Cayman Islands of February 8, 2025 and may have been promoted by energy from that source.

 

This earthquake in Croatia occurred about 3 minutes after a M 4.5 earthquake was felt in the Dodecanese Islands and may have been promoted by seismic waves from that source. This epicenter is at 144 degrees from the M 7.4 in Vanuatu of December 17, 2024 and may have been promoted by energy from that source.

 

The strongest earthquake in the Dodecanese series today occurred with M 5.1, with smaller events continuing unabated. EMSC reported the M 5.2 today was felt with moderate intensity in Greece at Agios Georgios, Milos, Agios Nikolaos, Crete, Heraklion, Chania, Gerani, Cholargos, Athens, Irakleio, Ilion, Agioi Anargyroi, and Acharnes.

 

O: 11FEB2025 12:34:13  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 01:14:55  36.6N   25.6E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 01:35:08  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:06:56  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:14:20  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:18:24  36.6N   25.6E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:23:11  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 07:17:19  36.7N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 11:30:25  36.7N   25.8E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 14:19:51  36.7N   25.8E Mw=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 15:10:59  36.7N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 17:40:19  36.7N   25.8E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 18:39:29  36.7N   25.9E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 20:53:26  36.7N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 21:25:28  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 01:12:41  36.7N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 04:21:03  36.7N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 11:43:55  36.6N   25.8E MW=4.9  EMSC   DODECANESE ISLANDS, GREECE   

O: 11FEB2025 11:43:55  36.6N   25.8E MW=4.9  EMSC   DODECANESE ISLANDS, GREECE   

P: 12FEB2025 169709    36.0N   25.0E 3.0-5.6 AAAAA  Aegean Sea                 

 

The Croatian earthquake is the strongest within about 200 km of that epicenter since an M 4.8 on February 9, 2023, two year ago. At the time this summary noted:

 

 

 

"An earthquake of M 4.8 occurred today in the region of Croatia. This event was reported by NEIC to have been felt with maximum intensity in Croatia at Crikvenica and IV in Premantura with IV in Rijeka, Croatia. Intensity II-III was reported felt in Pula and Zagreb, Croatia and in Slovenia, Italy, Bosnia and Herzegovina, and Slovenia. This appears to be related to the recent activation of the area following the major earthquakes of M 7.8 and 7.5 to the southeast on February 6 in Turkey. This activation most recently hit Romania with an M 5.0 followed by an M 5.7 a day later. Those events caused minor damage in southern Romania. The current hostilities and related ground motions in Ukraine are about 1500 km to the east  of this activity and may also have had an effect in activating seismicity in the general region. Statistical studies over the years have shown increased seismicity surrounding war zone, but this apparent statistical relation is not thoroughly explained.

 

Today's M 4.8 in Croatia is the strongest within about 200 km in Croatia since an M 4.9 on February 5, 2007.  It occurred near local solar noon and may have been promoted by strong tidal stresses which maximize near this hour." (February 16, 2023)

 

This epicenter is at 144 degrees from the M 7.4 in the Vanuatu Islands

December 17, 2024 and at the fourth node (90 degrees) from the M 7.0 in Northern California of December 5, 2024 and may have been promoted by energy from those sources.

 

Forecasts 169510, 169776 and 169786 had expected enhanced seismicity in this

region was likely between February 7 and 13, 2025.

 

O: 11FEB2025 17:43:00  44.4N   15.5E MW=4.6  EMSC   CROATIA                      

P:  7FEB2025 169510    44.0N   16.0E 3.0-5.4 BAAAA  Italy                      

P: 12FEB2025 169786    44.0N   14.0E 3.0-5.3 AAAAA  Italy                      

P: 13FEB2025 169776    44.0N   15.0E 3.0-5.2 AAAAA  Adriatic Sea               

 

An eruption of Mt. Etna in Sicily was reinvigorated today following the M 5.0  earthquake in Sicily two days ago. Spectacular clips of this eruption and lava flow can be viewed on the web.

 

A swarm of minor earthquakes has been occurring under Mount Spurr near Anchorage

Alaska. These began in April, 2024 with the solar eclipse of April 8, 2024 but ramped up in October 2024 suggesting a plutonic episode in progress. Mt. Spurr could erupt if this seismic activity continues.

 

 

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 11FEB2025 18:19:34  31.6N   72.2E ML=3.7  EMSC   PAKISTAN                     

P:  7FEB2025 169469    30.0N   70.0E 3.8-5.2 BBAAA  Pakistan                   

 

O: 11FEB2025 18:28:39  32.8N   74.2E ML=3.5  EMSC   SOUTHWESTERN KASHMIR         

P:  9FEB2025 169470    33.0N   74.0E 3.8-5.4 AAAAA  Pakistan                   

 

O: 11FEB2025 07:52:45  23.2N  120.5E ML=4.1  EMSC   TAIWAN

O: 11FEB2025 14:04:38  24.2N  121.7E ML=4.0  EMSC   TAIWAN                       

P: 13FEB2025 169703    23.0N  122.0E 4.0-5.4 ABAAA  Ryukyu Islands             

 

O: 11FEB2025 17:10:26  34.0N   89.2E MB=4.4  EMSC   XIZANG-QINGHAI BORDER REGION 

P:  7FEB2025 169501    36.0N   91.0E 3.8-5.2 BBBAA  Xizang                     

 

O: 12FEB2025 01:12:31  39.8N   74.2E ML=3.9  EMSC   SOUTHERN XINJIANG, CHINA     

P:  9FEB2025 169454    38.0N   72.0E 3.8-5.2 BBAAA  Hindu Kush/Pakistan        

P: 15FEB2025 169729    39.0N   72.0E 3.8-5.3 BABAA  Hindu Kush/Pakistan        

 

O: 12FEB2025 01:39:07  53.7N   90.8E MB=4.2  EMSC   SOUTHWESTERN SIBERIA, RUSSIA 

P:  1FEB2025 169557    50.0N   88.0E 3.0-4.4 DCBAA  So. Siberia                

 

O: 12FEB2025 01:23:12  65.3N  170.2W MB=4.2  EMSC   NEAR S COAST OF CHUKOTKA, RUSS

P: 14FEB2025 169858    66.0N  167.8W 3.0-5.0 AAAAA  Northern Alaska            

 

INDONESIA AND PHILIPPINES

 

O: 12FEB2025 06:53:36   1.7N  127.3E MB=4.9  EMSC   HALMAHERA, INDONESIA         

P: 14FEB2025 169629     1.0N  127.0E 4.0-5.5 AAAAA  Halmahera                  

 

O: 11FEB2025 16:53:25   4.5S  133.9E ML=4.4  EMSC   NEAR S COAST OF PAPUA, INDONESIA

O: 11FEB2025 07:57:47   4.5S  134.0E MB=4.7  EMSC   NEAR S COAST OF PAPUA, INDONES

P: 14FEB2025 169658     3.0S  134.0E 4.0-5.4 BBAAA  West Irian, PNG            

 

This epicenter is at 142 degrees from the M 7.6 in the Cayman Islands of

February 8, 2025 and may have been promoted by energy from that source.

 

O: 11FEB2025 16:05:56   5.1N   94.8E MB=4.4  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 12FEB2025 169635     5.0N   95.0E 4.0-5.5 AAAAA  Nicobar Islands            

 

NEIC reported an earthquake of M 4.4 in northern Sumatra was felt with moderate intensity up to II-III in the area(s) of northern Sumatra at Banda Aceh.

 

O: 11FEB2025 08:21:53   5.2S  102.4E ML=4.0  EMSC   SOUTHERN SUMATRA, INDONESIA  

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 AAAAA  So. of Sumatera            

 

O: 12FEB2025 07:02:49   8.3S  119.7E ML=4.2  EMSC   FLORES REGION, INDONESIA     

P: 12FEB2025 169657     9.0S  119.0E 4.0-5.6 AAAAA  Sumbawa Island area         

 

O: 12FEB2025 00:20:10   8.4S  109.2E ML=4.2  EMSC   JAVA, INDONESIA              

P: 14FEB2025 169655     9.0S  110.0E 4.0-5.6 AAAAA  So. of Java                

 

O: 11FEB2025 23:43:16  10.3N  125.9E ML=4.1  EMSC   LEYTE, PHILIPPINES           

P:  8FEB2025 169409    10.0N  126.0E 3.5-5.1 BAAAA  Luzon, Philippines         

P: 14FEB2025 169671    10.0N  126.0E 3.5-5.0 BAAAA  Luzon, Philippines         

 

O: 11FEB2025 21:26:10  12.5N  120.7E ML=4.0  EMSC   MINDORO, PHILIPPINES         

P: 13FEB2025 169672    12.0N  121.0E 3.5-5.1 AAAAA  Luzon, Philippines         

 

This epicenter is at 142 degrees from the M 7.6 in the Cayman Islands of

February 8, 2025 and may have been promoted by energy from that source.

 

O: 11FEB2025 23:18:15  18.5N  121.1E MB=4.6  EMSC   LUZON, PHILIPPINES           

P: 15FEB2025 169674    18.0N  120.0E 3.5-5.0 BAAAA  Luzon, Philippines         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 12FEB2025 00:58:48   2.7S   76.1W MB=4.0  EMSC   PERU-ECUADOR BORDER REGION   

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 CABAA  Ecuador                    

 

O: 11FEB2025 20:33:49  16.1N   97.7W ML=4.0  EMSC   OAXACA, MEXICO               

P:  7FEB2025 169419    16.0N   97.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

P: 13FEB2025 169683    16.0N   96.0W 3.5-5.2 AABAA  Oaxaca, Mexico             

 

O: 11FEB2025 08:04:42  18.5N   66.2W MD=3.0  EMSC   PUERTO RICO                  

P: 13FEB2025 169685    18.0N   66.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 11FEB2025 22:49:44  18.5N  105.3W ML=4.1  EMSC   OFFSHORE JALISCO, MEXICO     

P:  8FEB2025 169412    19.0N  105.0W 3.5-5.5 BAAAA  Michoacan, Mexico          

P: 12FEB2025 169677    19.0N  106.0W 3.5-5.5 AAAAA  Michoacan, Mexico          

 

 

No significant (M>=5) or unusual earthquakes were reported in Central or South America today.

 

AFRICA AND EUROPE

 

 

O: 11FEB2025 15:05:50  37.0N   23.5E ML=3.9  EMSC   SOUTHERN GREECE              

P: 12FEB2025 169710    37.0N   23.0E 3.0-4.6 AAAAA  Aegean Sea                 

 

O: 11FEB2025 17:43:00  44.4N   15.5E MW=4.6  EMSC   CROATIA                      

P:  7FEB2025 169510    44.0N   16.0E 3.0-5.4 BAAAA  Italy                      

P: 12FEB2025 169786    44.0N   14.0E 3.0-5.3 AAAAA  Italy                      

P: 13FEB2025 169776    44.0N   15.0E 3.0-5.2 AAAAA  Adriatic Sea               

 

O: 11FEB2025 12:34:13  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 01:14:55  36.6N   25.6E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 01:35:08  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:06:56  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:14:20  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:18:24  36.6N   25.6E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 02:23:11  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 07:17:19  36.7N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 11:30:25  36.7N   25.8E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 14:19:51  36.7N   25.8E Mw=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 15:10:59  36.7N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 17:40:19  36.7N   25.8E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 18:39:29  36.7N   25.9E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 20:53:26  36.7N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 21:25:28  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 01:12:41  36.7N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 12FEB2025 04:21:03  36.7N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 11:43:55  36.6N   25.8E MW=4.9  EMSC   DODECANESE ISLANDS, GREECE   

P: 12FEB2025 169709    36.0N   25.0E 3.0-5.6 AAAAA  Aegean Sea                  

 

SOUTHWEST PACIFIC

 

O: 12FEB2025 03:10:26  17.9S  178.4W mb=4.5  EMSC   FIJI REGION

O: 12FEB2025 03:14:19  17.9S  178.3W MB=4.8  EMSC   FIJI REGION                  

P:  9FEB2025 169583    19.0S  178.0W 4.0-5.4 BABAA  Tonga Islands               

P: 16FEB2025 169880    18.0S  179.0W 4.0-5.5 BAAAA  Tonga Islands              

 

This epicenter is at 102 degrees from the M 7.6 in Cayman Islands

February 8, 2025 and may have been promoted by energy from that source.

 

OCEAN RIDGES

 

O: 11FEB2025 11:40:09  39.1N   28.2W ML=3.9  EMSC   AZORES ISLANDS, PORTUGAL     

P: 13FEB2025 169800    42.0N   29.0W 4.0-5.8 ABAAA  No. Mid-Atlantic Ridge     

P: 17FEB2025 169800    41.0N   30.0W 4.0-5.8 BBBAA  No. Mid-Atlantic Ridge     

P: 19FEB2025 169775    40.0N   30.0W 4.0-5.0 CABAA  No. Mid-Atlantic Ridge     

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 11FEB2025 11:57:15  35.3S  178.3E ML=4.0  EMSC   OFF E. COAST OF N. ISLAND, N.Z

P: 14FEB2025 169903    35.0S  178.0E 3.0-4.6 BAAAA  North Island, N.Z.         

 

JAPAN AND KURIL ISLANDS

 

 

O: 12FEB2025 01:26:25  30.1N  139.0E MB=4.7  EMSC   IZU ISLANDS, JAPAN REGION    

P: 14FEB2025 169692    28.0N  139.0E 4.0-5.5 ABAAA  Bonin Islands              

P: 14FEB2025 169742    31.0N  141.0E 4.0-5.5 AABAA  Off East Coast Honshu      

 

O: 12FEB2025 05:54:47  45.9N  154.0E MB=4.1  EMSC   EAST OF KURIL ISLANDS        

P: 17FEB2025 169818    47.0N  153.0E 3.5-5.4 BBAAA  So. Kurils                  

 

O: 11FEB2025 22:51:47  50.8N  157.9E MB=4.1  EMSC   KURIL ISLANDS                

P: 12FEB2025 169837    52.0N  159.0E 4.0-5.7 ABAAA  Kamchatka                  

P: 17FEB2025 169837    51.0N  157.0E 4.0-5.9 CAAAA  Kamchatka                  

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 11FEB2025 09:54:16  31.4N  115.4W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO

O: 11FEB2025 08:49:11  31.6N  114.9W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 11FEB2025 21:30:18  31.7N  115.9W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO      

P: 14FEB2025 169750    32.4N  115.8W 2.5-4.8 BAAAA  So. California             

 

O: 11FEB2025 22:57:29  31.6N  115.1W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO      

P: 14FEB2025 169747    31.0N  114.6W 2.0-4.5 BAAAA  SW U.S.A                    

 

O: 11FEB2025 13:31:42  33.5N  116.6W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 13FEB2025 169755    33.9N  116.9W 2.5-4.6 AAAAA  So. California             

 

O: 11FEB2025 22:09:35  36.2N  118.1W ML=2.6  EMSC   CENTRAL CALIFORNIA            

P: 12FEB2025 169759    35.7N  118.1W 2.5-4.6 AAAAA  So. California             

 

O: 11FEB2025 13:32:02  36.8N  120.9W MD=2.5  EMSC   CENTRAL CALIFORNIA           

P: 12FEB2025 169719    37.1N  121.5W 2.5-4.7 AAAAA  Central California         

 

O: 11FEB2025 08:16:54  37.6N  122.1W MD=2.4  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 12FEB2025 169719    37.1N  121.5W 2.5-4.7 AAAAA  Central California         

 

O: 11FEB2025 16:23:33  38.8N  122.8W MD=2.0  EMSC   NORTHERN CALIFORNIA          

P: 10FEB2025 169448    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 11FEB2025 21:07:02  36.9N  121.6W MD=2.1  EMSC   CENTRAL CALIFORNIA

O: 12FEB2025 03:12:09  40.1N  121.1W ML=2.9  EMSC   NORTHERN CALIFORNIA          

P: 13FEB2025 169803    40.3N  121.2W 2.5-4.4 AAAAA  Northern California        

 

NEIC reported an earthquake of M 3.0 in northern California was felt with moderate intensity up to II-III in the area(s) of northern California at Greenville and Westwood.

 

O: 11FEB2025 22:10:36  40.2N  122.2W MD=2.3  EMSC   NORTHERN CALIFORNIA

O: 11FEB2025 22:39:58  40.2N  121.2W MD=2.4  EMSC   NORTHERN CALIFORNIA

O: 11FEB2025 22:03:12  40.2N  122.2W MD=2.4  EMSC   NORTHERN CALIFORNIA          

P:  9FEB2025 169523    40.6N  122.4W 2.5-4.4 AAAAA  Northern California        

 

O: 11FEB2025 08:13:16  40.3N  124.6W Mw=3.8  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 11:20:11  40.3N  124.6W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 14:34:41  40.3N  125.1W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 18:55:29  40.3N  125.0W MD=2.3  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 19:13:40  40.3N  124.9W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 12FEB2025 07:01:46  40.3N  124.7W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 11FEB2025 14:24:28  40.4N  124.9W MD=2.8  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 12FEB2025 04:32:40  40.4N  125.1W MW=4.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 12FEB2025 169804    40.5N  125.3W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

O: 11FEB2025 16:11:58  41.9N  119.6W ML=2.6  EMSC   NEVADA                       

P: 12FEB2025 169778    40.5N  119.5W 2.5-4.6 ABAAA  California/Nevada area     

 

NEIC reported an earthquake of M 2.6 in northern Nevada was felt with moderate intensity up to II-III in the area(s) of northern Nevada at Austin.

 

 

 

ALASKA

 

O: 12FEB2025 01:23:12  65.3N  170.2W MB=4.2  EMSC   NEAR S COAST OF CHUKOTKA, RUSS

P: 14FEB2025 169858    66.0N  167.8W 3.0-5.0 AAAAA  Northern Alaska            

 

This epicenter is at the fifth node (72 degrees) from the M 7.6 in the Cayman Islands of February 8, 2025

and may have promoted by energy from that source.

 

O: 12FEB2025 03:59:32  60.3N  152.8W ML=3.1  EMSC   SOUTHERN ALASKA              

P: 12FEB2025 169850    60.7N  151.8W 3.2-5.3 AAAAA  Central Alaska             

P: 14FEB2025 169851    60.2N  153.2W 3.2-5.1 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 12FEB2025 06:52:26  56.8N  122.1W MB=4.2  ECAN OF HALFWAY RIVER, BC           

O: 12FEB2025 06:52:26  56.8N  122.1W ML=4.2  EMSC   BRITISH COLUMBIA, CANADA     

P: 13FEB2025 169828    56.0N  122.0W 2.0-4.3 AAAAA  Alberta                    

 

This epicenter is at 90 degrees from the M 7.1 in Tibet

January 7, 2025 and at the fifth node (72 degrees) from Kyushu of M 6.8 on January 13, 2025 and may have been promoted by energy from those sources.

 

O: 11FEB2025 16:31:47  50.2N  132.8W MB=3.0  ECAN OF PORT HARDY, BC              

P: 12FEB2025 169832    50.7N  130.5W 3.0-5.2 AABAA  British Colombia            

 

O: 11FEB2025 15:47:37  60.2N  137.9W ML=3.1  EMSC   SOUTHERN YUKON TERRITORY, CANA

O: 11FEB2025 15:47:36  60.2N  137.9W MB=3.1  ECAN OF HAINES JUNCTION, YT         

P:  7FEB2025 169558    59.0N  137.0W 3.0-4.8 BAAAA  Southeast Alaska           

P: 16FEB2025 169846    59.0N  137.0W 3.0-4.6 BAAAA  Southeast Alaska           

 

O: 11FEB2025 09:59:06  47.8N  129.1W MB=3.1  ECAN OF COURTENAY, BC               

P: 12FEB2025 169820    47.9N  129.1W 2.8-4.9 AAAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

 

O: 11FEB2025 15:06:20  32.0N  103.8W ML=2.1  EMSC   NEW MEXICO

O: 11FEB2025 17:10:44  32.0N  103.8W ML=2.4  EMSC   NEW MEXICO

O: 11FEB2025 07:37:57  32.8N  100.6W ML=2.2  EMSC   WESTERN TEXAS

O: 11FEB2025 07:45:46  32.8N  100.6W ML=2.1  EMSC   WESTERN TEXAS

O: 12FEB2025 04:09:30  31.6N  104.5W ML=2.0  EMSC   WESTERN TEXAS                

P:  7FEB2025 169472    32.5N  104.6W 2.0-4.1 BAAAA  SW U.S.A                   

P: 15FEB2025 169748    31.5N  103.6W 2.0-4.0 BAAAA  SW U.S.A                    

 

O: 11FEB2025 08:35:56  44.4N  110.6W ML=2.2  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:38:45  44.4N  110.5W ML=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:44:07  44.4N  110.5W ML=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:52:36  44.4N  110.5W ML=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 10:38:08  44.4N  110.6W ML=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 11FEB2025 08:35:13  44.2N  110.4W ML=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 12FEB2025 169824    44.2N  110.3W 2.0-4.1 AAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 12FEB2025 02:28:18  35.2N   97.6W ML=2.0  EMSC   OKLAHOMA

O: 11FEB2025 14:02:40  35.2N   97.6W ML=2.2  EMSC   OKLAHOMA                     

P: 10FEB2025 169493    36.0N   97.0W 2.0-4.2 AAAAA  Southern Plains            

 

O: 11FEB2025 21:51:04  36.2N   91.4W MD=2.2  EMSC   ARKANSAS                     

P: 12FEB2025 169735    35.0N   92.0W 2.0-4.1 ABAAA  New Madrid area            

 

O: 11FEB2025 23:53:56  38.7N   97.6W ML=2.6  EMSC   KANSAS                       

P: 13FEB2025 169765    39.0N   98.0W 2.0-4.1 AAAAA  Southern Plains            

 

NEIC reported an earthquake of M 2.6 in northern Kansas was felt with moderate intensity up to II-III in the area(s) of northern Kansas at Assaria.

 

O: 11FEB2025 07:26:03  45.6N   75.0W MB=1.4  ECAN OF SAINT-ANDR├⌐-AVELLIN, QC   

O: 11FEB2025 06:09:55  46.0N   75.0W MB=0.9  ECAN OF CH├⌐N├⌐VILLE, QC            

P: 18FEB2025 169799    45.0N   75.0W 2.0-4.0 CAAAA  New York State             

 

O: 11FEB2025 07:57:33  47.6N   70.0W MB=0.5  ECAN OF LA MALBAIE, QC  

O: 11FEB2025 02:33:26  47.5N   70.2W MB=0.4  ECAN OF LA POCATI├¿RE, QC           

P:  9FEB2025 169514    47.0N   70.0W 2.0-4.2 AAAAA  Maine                       

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

MODERATE EARTHQUAKE SHAKES GIBRALTAR

 

EARTHQUAKE SUMMARY FOR FEBRUARY 10, 2025

 

 

A moderate earthquake of M 4.9 (EMSC) to M 5.1 (NEIC) occurred today in the area of the Strait of Gibraltar near local solar midnight. NEIC reported it was widely felt in Morroco with maximum intensity IV in Tetouan, Tangier, Casablanca, Berrechid, Fes, Fez, Sefrou, Kenitra, Souk El Arbaa, III in Azrou, Meknes, Rabat, Skhirate, Tanger, Benslimane, El Jadida, Khemisset, Chefchaouen, and II in Faro, Portugal. This is an unusual epicenter for the Strait of Gibraltar area being about 200 km west of the usual events of M>=4.9 in the area. There have been no other events with M>=4.9 within 200 km of today's epicenter in the past 35 years. A series of events starting with an M 6.4 about 200 km east of today's epicenter occurred beginning on February 24, 2004 and had been discussed in this summary at the time as:

 

 

"The strongest event of the day was an M 6.5-6.6 that occurred north of Morocco in the region of the Strait of Gibraltar. This earthquake was felt strongly in the region of Alhucemas, Morocco and was followed by a strong aftershock sequence according to the Instituto Geographico Nacional en Madrid, Spain. Associated Press had indicated that at least forty-two were killed and an additional 40 injured in this earthquake, however the death toll is expected

to reach several hundred. Rescue is slow due to the remoteness of the area. The village of Ait Kamara about 14 km south of the epicenter was completely destroyed with at least 15 killed in that village alone. Two other villages - Im-Zouren and Bni-Hadifa were also badly hit. Twenty more were killed in Al Hoceima province. The quake was also felt in the tourist city of Fez and in the interior and Taza. An earthquake of M6.0-6.2 hit Agadir, Morocco about 800 km to the southwest on Feb. 29, 1960 killing about 13,100 people and causing up to $120 million damage which was extreme.  A strong earthquake of M 6.9 also hit the region about 500 km to the east in Tunisia on May 21, 2003. That earthquake killed at least 2,266 people while injuring 10, 261 and destroying more than 1,200 homes. This is the strongest event in the region (30-40N 10W-3E) since an earthquake of M 7.7 that occurred on Oct. 10, 1980. That earthquake occurred near Al Asnam, Algeria and killed up to 5,000 in that city while injuring 90000. The largest event in the Strait of Gibraltar area in the past 50 years was an M 6.2-6.9 that occurred on March 15, 1964 two weeks before the great Alaska earthquake that occurred on March 28, 1964 with Mw 9.6. A strong earthquake of M 7.0 occurred in the area at deep focus of 657 km on March 29, 1954, ten years earlier but did little damage. The strongest earthquake within 150 km of this epicenter at shallow depth occurred on Christmas Day (Dec. 25), 1884 and killed 745 in the Arenas del Rey, Vega, Alhama and Malaga areas of Spain while doing severe damage throughout the region." (February 24, 2004)

 

Likewise when an M 6.3 hit further to the east on January 25, 2016, this summary noted:

 

"A strong earthquake also hit the region of Gibraltar, This earthquake of M 6.1 is unprecedented in modern seismicity of the region. NEIC reported it was felt with moderate intensity in Spain, Gibraltar and Morocco. The strongest intensity of V was felt in Melilla and Cartama, Malaga, Spain; in Fez and Nador, Morocco. Intensity IV was reported in Morocco from Imzouren, Oujda, and in Spain at Torremolinos, Nerja, Benahavis, with lesser shaking of II-III in Spain in the region of Aolmeria at Roquitaas de Mar; in Cadiz at San Roque; in Cordoba at Puente Genil; at Granada at Granada, Maracena and Salar; in Huelva, in Malaga at Manilva, Marbella, Mijas, Moclinejo, Malaga, Ojen; in Gibraltar with intensity III and in Morocco at Casablanca, Rabat, Tetouan, Al Hoceima and Taza.

The mainshock of M 6.1 was followed by an energetic aftershock sequence including moderate earthquakes of M 5.3, 5.0, 4,6, 5.1 and 5.3. A tsunami was not expected with this series of earthquakes. The only previous earthquake within about 200 km of this epicenter with M>=6.1 in the past 25 years was an M 6.3 about 200 km north of today's epicenter. That earthquake, unlike today's shallow focus of about 10 km, occurred with a hypocenter at 610 km and was not strongly felt on the surface. That earthquake was felt lightly as far as Great Britain and also was associated with tidal triggering as noted in this summary at the time" (January 25, 2016)

 

 

This epicenter is at 103 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025 in the far-field forecast for that event and specifically on January 31 as:

 

"A series of minor earthquakes been occurring in the Strait of Gibraltar over the past several days. These are not unusual but the magnitude of the largest event in the series appears to be increasing each day. These events, like a series in the eastern U.S. in Texas, New York, Maine, etc are located at 103 degrees from the M 6.8 in Kyushu, Japan of January 13. A stronger event in Gibraltar is possible at this time." (January 31, 2025)

 

Forecasts 169458 and 169734 had expected enhanced seismicity in the region of the Strait of Gibraltar was likely between Febury 4 and 12, 2025.

 

O: 10FEB2025 22:48:40  35.1N    5.7W MB=5.1  EMSC   STRAIT OF GIBRALTAR          

P:  4FEB2025 169458    37.0N    6.0W 3.5-5.1 AAAAA  Morocco/Spain              

P: 12FEB2025 169734    37.0N    4.0W 3.5-6.1 AAAAA  Morocco/Spain              

P: 16FEB2025 169734    37.0N   10.0W 3.5-5.3 AAAAA  Morocco/Spain              

 

Tropical Cyclone Vince, which has been linked in this summary to a series of antipodal earthquakes in the last week is likely to change direction and  track to the south but to maintain much of its energy in doing so. The latest models of this southward path is antipodal to the Gulf of California, Baja and perhaps Southern California around February 12-13, 2025.  The model does not have this storm antipodal to the Los Angeles area as it currently stands, but the path could remain further to the west than anticipated and would be antipodal to southern and northern California around February 12-13.

 

The quake in Gibraltar was also located near the fifth node (72 degrees) from the M 7.6 in the Cayman Islands two days ago and may have been promoted by energy from that source. It followed an M 5.0 in the Dodecanese Islands after 11 minutes. This is the time a surface wave from Greece would take to traverse the 25 degree distance between these two epicenter and it is likely the surface wave from Greece triggered the subsequent event in Gibraltar.

 

The surface wave from the M 5.0 in the Dodecanese Islands also appears to have triggered an M 4.6 about 300 km northeast of its epicenter about 35 seconds later in the area near Athens, Greece. This was probably triggered by S- P- or surface waves which all arrive at the second epicenter about that time. This  epicenter is at the fourth node from the Cayman Islands - 90.0 degrees and may have been promoted by energy from that source.

 

The last earthquake within about 150 km of this epicenter in Greece occurred as an M 4.9 on January 6, 2025. This epicenter is at 144 degrees from the M 7.4 in Vanuatu of December 17, 2024 and at the fourth node (90 degrees) from the Cayman Islands M 7.6 of February 8 and may have been promoted by energy from those sources. A similar M 3.8 in Romania today was at this distance from the Cayman Islands.

 

Forecast 169460 had expected this event within about 100 km was likely around

February 7, 2025.

 

O: 10FEB2025 22:38:00  38.1N   22.0E ML=4.6  EMSC   GREECE                       

P:  7FEB2025 169460    38.0N   21.0E 3.0-4.7 BAAAA  No. Greece                 

 

It was an active 13 minutes of global seismicity between 22:37 and 22:50 UT.

Other unusual earthquake in this time frame occurred as an M 4.7 in Jujuy, Argentina and as an M 3.4 in the Canary Islands about 500 km south of Gibraltar and 1.5 minutes after the Gibraltar event as the P- or S-wave arrived at that epicenter in the Canary Islands. This event may be an error in the automatic location algorithm used by many networks. The last earthquake in the Canary Islands located within about 200 km of this M 3.4 with equal or greater magnitude occurred on April 4, 2021 with M 4.2 and prior to that as an M 4.7 on November 8, 2008.

 

The M 5.1 in the Dodecanese Islands today was reported by NEIC to have been felt with intensity up to VII in Jamarion, Kiklades, Greece and V in Ios and IV in Akharnai, Attiki and Izmir, Turkey. Lesser intensity was felt as far as 250 km from the epicenter. This continues the strong series of earthquakes in the Dodecanese Islands. Indications are that this series is beginning to decline and may cease in the next several days.

 

Forecasts 169438 and 169709 had expected this continuing activity in the

Dodecanese Islands was likely around February 9-12, 2025.

 

O: 10FEB2025 10:27:33  36.6N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 13:14:34  36.6N   25.7E Mw=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 22:37:25  36.6N   25.7E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 22:51:05  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 00:02:58  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 03:47:32  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:36:11  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:43:48  36.6N   25.9E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 07:17:18  36.6N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 11:23:18  36.7N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 13:31:58  36.7N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 20:16:29  36.7N   25.7E Mw=5.2  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 21:35:45  36.7N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 21:37:35  36.7N   25.8E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 22:44:29  36.7N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 02:46:50  36.7N   25.8E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:14:31  36.7N   25.8E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:50:38  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:58:45  36.7N   25.8E Mw=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 06:00:29  36.7N   25.8E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 06:39:57  36.7N   25.8E mb=4.9  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 06:50:17  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 08:20:26  36.6N   25.6E MW=4.2  EMSC   DODECANESE ISLANDS, GREECE   

P:  9FEB2025 169438    35.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

P: 12FEB2025 169709    36.0N   25.0E 3.0-5.6 AAAAA  Aegean Sea                 

 

 

In previous issues of this summary updates on the seismic potential of southern California at this time was discussed as:

 

"Following the massive fires in January and February, 2005, this summary began watching seismicity of this region. As energy from TC Vince matches the  full moon and energy from the M 7.6 in the Cayman Islands at about the right time for unloading effects from the fires, conditions in Southern California (Simi Valley, L.A. California is at the 10th node (36.0 degrees) from the Cayman Islands epicenter)and northern Baja and the Gulf of California appear to be optimized in mid-February to trigger a moderate (or possibly large) earthquake in that area in the coming week." (February 9-10, 2025).

 

TC Vince is approaching the area of the South Indian Ocean at 32S 74E at this writing. An unusual earthquake of M 5.4 hit at this epicenter early on February 11, 2025 and may have been promoted by energy from TC Vince. This earthquake is  somewhat unusual. Although it lies on the seismic active Mid-Indian Ridge, the last event within about 250 km of this epicenter of M>=5.4 occurred more than 35 years ago. The only similar event within about 500 km in this time frame occurred as an M 5.5 on May 8, 2020. At the time this summary noted:

 

"The strongest earthquake in the world today was an M 5.5 on the Mid-Indian Ridge. It was not reported felt in this remote epicentral area. The last earthquake of M>=5.5 within about 500 km of this epicenter in the Indian Ocean occurred as an M 5.7 about 500 km northwest of today's epicenter on March 26, 2009. Similar earthquakes hit that epicenter on March 14, 2005, January 1, 2002 and August 28, 1999 but there have been no recorded earthquakes within 400 km of today's epicenter in the past 30 years." (May 8, 2020)

 

 

Forecasts 159606 and 169874 had expected today's event was likely within this area around February 5-13, 2025.

 

O: 11FEB2025 05:00:27  32.2S   75.1E MB=5.4  EMSC   MID-INDIAN RIDGE             

P:  5FEB2025 169606    37.0S   79.0E 4.0-5.4 CCCAA  So. Indian Ocean           

P: 13FEB2025 169874    32.0S   74.0E 4.0-5.5 AAAAA  So. Indian Ocean           

 

A set of three light earthquakes rocked the area of eastern Los Angeles, California today.  These events of M 3.6, 3.6 and 3.0 were reported by the press which emphasized they are worrying local inhabitants as they are located on the San Andreas Fault, a fault capable of strong to major earthquakes. The largest of today's earthquakes occurred with M 3.6. NEIC reported it was felt with intensity up to IV in California at Chino, Crestline; III in Adelanto, Grand Terrace, Big Bear City, Bloomington, Blue Jay, Cedar Glen, Cedarpines, Colton, Fontana, Highland, Lake Arrowhead, Loma Linda, Lucerne Valley, Redlands, Rialto, Running Springs, Skyforest, San Bernardino, Riverside, Moreno Valley, Perris, Winchester, Huntington Beach, Norco, with lesser shaking throughout much of the Los Angeles area. No major damage was reported with these earthquakes.

 

The M 3.6 is the strongest event in eastern Los Angeles, California since an

M 4.0 on October 6, 2024. At the time this summary noted:

 

 

"NEIC reported the M 4.0-4.2 earthquake in Los Angeles today was felt with maximum intensity V in Southern California at Ontario, Chino, IV in Mira Loma, Rancho Cucamonga, Montclair, Upland, Fontana, Norco, Corona, Riverside, Chino Hills, Pomona, West Covina, Santa Ana, Westminster, Hawaiian Gardens, La Canada Flintridge, Huntington Beach, Long Beach, Los Angeles and Ramona and with intensity III as far as 120 km from the epicenter at Ludlow and San Diego. The last earthquake within about 50 km of today's epicenter in Los Angeles of equal or greater magnitude was an M 4.1 on May 1, 2024. Similar events in the area during 2024 occurred with M 4.2 on January 4, 2024 and January 25, 2024. At the time this summary noted:

 

 

“A moderate earthquake of M 4.2 was widely felt with some minor damage and strong shaking in the region of Southern California near San Bernardino today. NEIC reported maximum shaking in San Bernardino with intensity up to V.

EMSC reported moderate to strong shaking in Southern California was felt in San Bernardino, Colton, Loma Linda, Rialto, Riverside, Fontana, Highland, Redlands, Jurupa Valley, Moreno Valley, Rancho Cucamonga, Mentone, Mira Loma, Ontario, Yucaipa, Norco among others. This continues a series of moderate earthquakes that began with the arrival of the year 2024 and has included most recently an M 4.3 on August 29, 2018 and a similar event of 4.2 on January 5, 2024.

At the time this summary noted:

 

"The strongest earthquake in the U.S. or Canada today was an M 4.2-4.4 in the region of eastern Los Angeles, California. NEIC reported this earthquake of M 4.2 in Los Angeles, California was felt with intensity up to V in the area(s) of Los Angeles, California in Lytle Creek.  EMSC reported moderate to strong shaking in the region of Los Angeles was felt in Fontana, Phelan, Rancho Cucamonga, Pinon Hills, Muscoy, Rialto, Crestline, Upland, Bloomington, Hesperia, Rialto, San Bernardino, Colton, Mountain View Acres, Glen Avon, Lake Arrowhead, Ontario, Glen Avon, Montclair, Highland and as far as Hollywood, Torrance nearly 100 km from the epicenter. This event follows a similar M 4.2 in the Rancho Palos Verdes area of California." (October 6, 2024)

 

Forecast 169479 had expected today's activity within about 25 km was likely

around February 9, 2025.

 

O: 10FEB2025 17:48:52  34.2N  117.3W ML=3.0  EMSC   GREATER LOS ANGELES AREA, CALIF.

O: 11FEB2025 05:58:53  34.2N  117.3W ML=3.3  EMSC   GREATER LOS ANGELES AREA, CALIF.

O: 10FEB2025 17:44:55  34.2N  117.3W ML=3.4  EMSC   GREATER LOS ANGELES AREA, CALI

O: 10FEB2025 17:44:55  34.2N  117.3W ML=3.6  ANSS   GREATER LOS ANGELES AREA, CALI

P:  9FEB2025 169479    34.3N  117.5W 2.5-4.8 AAAAA  So. California             

 

NEIC reported an earthquake of M 4.1 off the coast of northern California was felt with moderate intensity up to IV in the area(s) of northern California in Ferndale and Scotia; III in Fremont, Hayward, Alderpoint, Carlotta, Fortuna, Loleta, Meyers Flat, Petrolia and Rio Dell and II in Castro Valley, Eureka, Garberville, Hydesville and Whitethorn. An earlier event of M 2.8 was reported with intensity II in Eureka, California.

 

The strongest earthquake in the U.S. or Canada today was an M 4.5 south of Alaska in the Unimak Island area. This is the strongest earthquake within about 150 km of this epicenter south of Alaska since an M 4.9 on October 5, 2024.

 

Forecast 169847 had expected this event within about 100 km was likely around

February 14, 2025.

 

O: 11FEB2025 01:09:51  53.9N  161.6W MB=4.5  EMSC   SOUTH OF ALASKA              

P: 14FEB2025 169847    54.7N  161.2W 3.5-4.9 BAAAA  Unimak Islands, Aleutians  

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 10FEB2025 15:45:17  34.1N   77.8E MB=4.3  EMSC   EASTERN KASHMIR              

P:  9FEB2025 169470    33.0N   74.0E 3.8-5.4 ABCAA  Pakistan                   

 

NEIC reported an earthquake of M 4.3 in India was felt with moderate intensity up to II-III in the area(s) of India at Leh and Ramban, Jammu and Kashmir, 

 

O: 10FEB2025 16:16:25  36.1N   71.2E MB=4.3  EMSC   HINDU KUSH REGION, AFGHANISTAN

P:  9FEB2025 169454    38.0N   72.0E 3.8-5.2 ABAAA  Hindu Kush/Pakistan        

P: 14FEB2025 169729    36.0N   71.0E 3.8-5.3 BAAAA  Hindu Kush/Pakistan        

 

O: 11FEB2025 02:14:33  56.2N  162.9E MB=4.0  EMSC   NEAR EAST COAST OF KAMCHATKA 

P: 12FEB2025 169835    56.0N  162.0E 4.0-5.5 AAAAA  E. of Kamchatka            

 

INDONESIA AND PHILIPPINES

 

 

Activity was up in the area of Central Indonesia today. Events of M 5.0 and 5.1

occurred in New Britain, with an M 5.1 in Sumba and an M 5.0 in the Solomon

Islands. Many of the earthquakes in this region are occurring at a distance

of 142-145 degrees from the M 7.6 in the Cayman Islands of February 8 and

may be FFA from that event.

 

O: 11FEB2025 04:25:27   1.6S  138.7E ML=3.9  EMSC   NEAR N COAST OF PAPUA, INDONES

P:  7FEB2025 169396     3.0S  138.0E 4.0-5.4 BBAAA  West Irian, PNG            

P: 13FEB2025 169659     2.0S  138.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 10FEB2025 08:50:55   1.9S  129.2E ML=4.4  EMSC   PAPUA REGION, INDONESIA      

P: 17FEB2025 169642     3.0S  129.0E 4.0-5.7 CBAAA  Ceram area                 

 

O: 10FEB2025 15:25:43   3.6S  126.9E ML=4.4  EMSC   BURU, INDONESIA              

P:  9FEB2025 169377     4.0S  127.0E 4.0-5.4 AAAAA  Ceram area                 

 

O: 11FEB2025 05:32:37   3.8S  150.9E mb=5.0  EMSC   NEW IRELAND REGION, P.N.G.

O: 11FEB2025 02:37:47   3.7S  150.7E MB=5.1  EMSC   NEW IRELAND REGION, P.N.G.   

P:  9FEB2025 169384     3.0S  148.0E 4.0-5.4 AACAA  New Ireland                

 

O: 10FEB2025 14:09:12   6.1N  126.1E ML=4.0  EMSC   MINDANAO, PHILIPPINES

O: 10FEB2025 18:25:53   5.0N  127.6E ML=4.4  EMSC   PHILIPPINE ISLANDS REGION    

P: 12FEB2025 169633     5.0N  125.0E 4.0-5.6 AABAA  Mindanao, Philippines      

 

O: 11FEB2025 03:36:59   6.2S  130.0E ML=4.3  EMSC   BANDA SEA                    

P: 12FEB2025 169660     6.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 10FEB2025 14:00:16   6.5S  149.3E MB=4.6  EMSC   NEW BRITAIN REGION, P.N.G.   

P:  6FEB2025 169385     6.0S  149.0E 4.0-5.5 BAAAA  New Ireland                 

P: 12FEB2025 169650     7.0S  150.0E 4.0-5.4 AAAAA  New Ireland                

 

O: 10FEB2025 11:17:27   7.1S  155.1E MB=5.0  EMSC   SOLOMON ISLANDS              

P: 12FEB2025 169656     7.0S  155.0E 4.0-5.4 AAAAA  Solomon Islands             

 

O: 10FEB2025 11:25:22   7.2S  121.9E MB=4.4  EMSC   FLORES SEA                   

P:  9FEB2025 169380     8.0S  122.0E 4.0-5.6 AAAAA  Flores Island area         

 

O: 11FEB2025 01:44:33   7.3S  127.7E ML=4.0  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 14FEB2025 169639     8.0S  129.0E 4.0-5.6 BABAA  Banda Sea                  

 

O: 10FEB2025 15:15:03   9.8S  119.6E MB=5.1  EMSC   SUMBA REGION, INDONESIA      

P: 12FEB2025 169657     9.0S  119.0E 4.0-5.6 AAAAA  Sumbawa Island area        

 

O: 10FEB2025 14:03:57  10.7S  123.6E MB=4.6  EMSC   TIMOR REGION, INDONESIA      

P: 15FEB2025 169869    10.0S  124.0E 4.0-5.5 BAAAA  Flores Island area         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 10FEB2025 07:06:06   2.8S   79.9W ML=4.0  EMSC   NEAR COAST OF ECUADOR         

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 BABAA  Ecuador                    

P:  8FEB2025 169378     1.0S   81.0W 4.0-5.4 ABAAA  Ecuador                    

 

O: 10FEB2025 08:11:20  13.9N   90.7W MB=4.5  EMSC   OFFSHORE GUATEMALA           

P:  8FEB2025 169405    13.0N   91.0W 3.5-5.2 AAAAA  Guatemala                  

 

NEIC reported an earthquake of M 4.5 in Guatemala was felt with moderate intensity up to II in the area(s) of  Guatemala at San Jose Pinula.

EMSC reported it was felt with light intensity in Guatemala City and Colonia Valle de San Arturo.

 

O: 10FEB2025 10:13:51  14.7N   92.6W ML=3.9  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 11FEB2025 169663    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

 

O: 11FEB2025 05:07:59  17.1N  102.6W ML=4.1  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 12FEB2025 169676    19.0N  102.0W 3.5-5.1 ABAAA  Michoacan, Mexico          

 

O: 10FEB2025 22:31:37  17.5N   83.2W MB=4.3  EMSC   NORTH OF HONDURAS            

P:  6FEB2025 169415    17.0N   85.0W 3.5-5.2 BABAA  Nicaragua                  

P: 12FEB2025 169662    17.0N   83.0W 3.5-5.1 AAAAA  Caribbean Sea              

 

O: 11FEB2025 02:00:27  18.2S   69.7W MW=4.6  EMSC   TARAPACA, CHILE              

P:  8FEB2025 169581    18.0S   69.0W 4.0-5.6 BAAAA  So. Peru/Bolivia           

 

O: 10FEB2025 07:43:16  18.4N  103.5W ML=4.0  EMSC   MICHOACAN, MEXICO            

P:  7FEB2025 169412    19.0N  103.0W 3.5-5.3 BAAAA  Michoacan, Mexico          

P: 12FEB2025 169676    19.0N  102.0W 3.5-5.1 AABAA  Michoacan, Mexico          

 

O: 11FEB2025 02:30:13  18.5N   66.1W MD=3.2  EMSC   PUERTO RICO REGION           

P:  8FEB2025 169424    20.0N   67.0W 3.0-4.6 BBAAA  Bahamas/No. Caribbean      

P: 13FEB2025 169685    18.0N   66.0W 3.4-5.3 AAAAA  Puerto Rico                 

 

O: 10FEB2025 17:06:15  22.2S   68.6W MW=4.1  EMSC   ANTOFAGASTA, CHILE           

P:  9FEB2025 169589    23.0S   69.0W 4.0-5.8 AAAAA  Coast No. Chile            

P: 12FEB2025 169884    22.0S   68.0W 4.0-5.6 AAAAA  Argentina                   

 

O: 11FEB2025 00:10:35  24.2S   67.0W mb=4.5  EMSC   SALTA, ARGENTINA

O: 10FEB2025 22:47:06  23.2S   66.7W MB=4.7  EMSC   JUJUY, ARGENTINA             

P:  9FEB2025 169589    23.0S   69.0W 4.0-5.8 AABAA  Coast No. Chile            

P: 12FEB2025 169884    22.0S   68.0W 4.0-5.6 ABBAA  Argentina                  

 

O: 10FEB2025 14:47:54  28.3S   71.1W MB=4.3  EMSC   ATACAMA, CHILE               

P:  6FEB2025 169588    28.0S   71.0W 4.0-5.8 BAAAA  Coast Central Chile        

 

O: 10FEB2025 06:53:28  28.9N  113.2W ML=4.0  EMSC   GULF OF CALIFORNIA           

P:  7FEB2025 169471    30.2N  114.1W 2.0-4.1 BBAAA  SW U.S.A                   

 

O: 10FEB2025 12:37:10  32.2S   71.4W ML=4.1  EMSC   COQUIMBO, CHILE              

P: 13FEB2025 169899    31.0S   71.0W 4.0-5.9 BBAAA  Central Chile              

 

O: 11FEB2025 02:24:06  37.2S   74.9W MW=5.2  EMSC   OFF COAST OF BIO-BIO, CHILE  

P:  5FEB2025 169601    36.0S   71.0W 4.0-5.9 CBCAA  Central Chile              

 

NEIC reported an earthquake of M 5.2 in Bio-Bio, Chile was felt with moderate intensity up to II-III in the area(s) of Bio-Bio, Chile at Concepcion and Lebu.

 

 

AFRICA AND EUROPE

 

O: 10FEB2025 10:27:33  36.6N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 13:14:34  36.6N   25.7E Mw=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 22:37:25  36.6N   25.7E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 22:51:05  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 00:02:58  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 03:47:32  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:36:11  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:43:48  36.6N   25.9E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 07:17:18  36.6N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 11:23:18  36.7N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 13:31:58  36.7N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 20:16:29  36.7N   25.7E Mw=5.2  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 21:35:45  36.7N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 21:37:35  36.7N   25.8E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 22:44:29  36.7N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 02:46:50  36.7N   25.8E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:14:31  36.7N   25.8E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:50:38  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 05:58:45  36.7N   25.8E Mw=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 06:00:29  36.7N   25.8E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 06:39:57  36.7N   25.8E mb=4.9  EMSC   DODECANESE ISLANDS, GREECE

O: 11FEB2025 06:50:17  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 08:20:26  36.6N   25.6E MW=4.2  EMSC   DODECANESE ISLANDS, GREECE   

P:  9FEB2025 169438    35.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

P: 12FEB2025 169709    36.0N   25.0E 3.0-5.6 AAAAA  Aegean Sea                 

 

O: 10FEB2025 07:06:34  26.0S   28.2E ML=3.1  EMSC   SOUTH AFRICA                 

P:  4FEB2025 169592    27.0S   27.0E 3.0-4.5 CAAAA  Rep. South Africa          

P: 16FEB2025 169891    26.0S   28.0E 3.0-4.6 CAAAA  Rep. South Africa          

 

O: 10FEB2025 22:48:40  35.1N    5.7W MB=5.1  EMSC   STRAIT OF GIBRALTAR          

P:  4FEB2025 169458    37.0N    6.0W 3.5-5.1 AAAAA  Morocco/Spain              

P: 12FEB2025 169734    37.0N    4.0W 3.5-6.1 AAAAA  Morocco/Spain              

P: 16FEB2025 169734    37.0N   10.0W 3.5-5.3 AAAAA  Morocco/Spain              

 

O: 11FEB2025 04:59:08  37.3N    7.5W ML=1.9  EMSC   PORTUGAL                     

P:  4FEB2025 169458    37.0N    6.0W 3.5-5.1 CABAA  Morocco/Spain              

 

O: 10FEB2025 13:19:54  37.8N   15.1E ML=3.7  EMSC   SICILY, ITALY                

P: 13FEB2025 169733    38.0N   14.0E 3.0-4.9 BAAAA  Mediterranean/Sicily       

 

O: 10FEB2025 22:38:00  38.1N   22.0E ML=4.6  EMSC   GREECE                       

P:  7FEB2025 169460    38.0N   21.0E 3.0-4.7 BAAAA  No. Greece                 

 

O: 10FEB2025 16:31:41  45.5N   26.4E ML=3.8  EMSC   ROMANIA                      

P:  6FEB2025 169532    46.0N   26.0E 3.0-5.0 BAAAA  Romania/NW Turkey          

 

 

SOUTHWEST PACIFIC

 

O: 10FEB2025 10:18:48  17.4S  167.8E MB=5.0  EMSC   VANUATU                      

P: 12FEB2025 169882    17.0S  168.0E 4.0-5.4 AAAAA  Vanuatu Islands            

 

O: 11FEB2025 05:47:56  22.7S  175.4W MB=5.0  EMSC   TONGA REGION                 

P:  8FEB2025 169597    23.0S  177.0W 4.0-5.5 BABAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 10FEB2025 21:06:44  18.0N   57.6E MB=4.3  EMSC   OWEN FRACTURE ZONE REGION    

P:  8FEB2025 169398    15.0N   56.0E 3.5-5.0 ACBAA  Arabian Sea                

 

O: 10FEB2025 22:50:29  30.5N   13.7W ML=3.4  EMSC   CANARY ISLANDS, SPAIN REGION 

P:  4FEB2025 169426    28.0N   16.0W 3.0-4.8 CCBAA  Canary Islands             

P: 14FEB2025 169693    28.0N   16.0W 3.0-4.6 BCBAA  Canary Islands             

 

O: 11FEB2025 05:00:27  32.2S   75.1E MB=5.4  EMSC   MID-INDIAN RIDGE             

P:  5FEB2025 169606    37.0S   79.0E 4.0-5.4 CCCAA  So. Indian Ocean           

P: 13FEB2025 169874    32.0S   74.0E 4.0-5.5 AAAAA  So. Indian Ocean           

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 10FEB2025 11:17:48  40.6S  175.8E ML=4.1  EMSC   NORTH ISLAND OF NEW ZEALAND  

P:  9FEB2025 169612    41.0S  176.0E 3.0-4.9 AAAAA  So. Island, N.Z.           

 

JAPAN AND KURIL ISLANDS

 

O: 10FEB2025 14:16:55  41.7N  141.3E MW=4.9  EMSC   HOKKAIDO, JAPAN REGION       

P:  7FEB2025 169507    41.0N  141.0E 3.5-5.6 BAAAA  Hokkaido, Japan            

 

NEIC reported an earthquake of M 4.9 in Hokkaido, Japan was felt with moderate intensity up to II-III in the area(s) of Hokkaido, Japan at Misawa, Aomori.

 

O: 11FEB2025 01:25:22  42.7N  145.4E MB=4.6  EMSC   HOKKAIDO, JAPAN REGION       

P: 12FEB2025 169783    43.0N  143.0E 3.5-5.8 AABAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 10FEB2025 21:57:37  33.2N  116.1W ML=2.7  EMSC   SOUTHERN CALIFORNIA          

P: 11FEB2025 169755    33.7N  116.1W 2.5-4.6 AAAAA  So. California             

 

O: 10FEB2025 17:48:52  34.2N  117.3W ML=3.0  EMSC   GREATER LOS ANGELES AREA, CALIF.

O: 11FEB2025 05:58:53  34.2N  117.3W ML=3.3  EMSC   GREATER LOS ANGELES AREA, CALIF.

O: 10FEB2025 17:44:55  34.2N  117.3W ML=3.4  EMSC   GREATER LOS ANGELES AREA, CALI

P:  9FEB2025 169479    34.3N  117.5W 2.5-4.8 AAAAA  So. California             

 

O: 10FEB2025 21:13:45  35.1N  118.3W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P:  8FEB2025 169483    35.6N  118.4W 2.5-4.7 AAAAA  So. California             

 

O: 10FEB2025 22:23:04  36.0N  117.8W ML=3.2  EMSC   CENTRAL CALIFORNIA           

P:  8FEB2025 169441    36.2N  117.9W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 10FEB2025 15:48:30  37.9N  118.6W ML=2.3  EMSC   CENTRAL CALIFORNIA

O: 11FEB2025 00:23:48  37.9N  118.6W ML=2.9  EMSC   CENTRAL CALIFORNIA           

P:  8FEB2025 169442    37.7N  118.5W 2.5-4.4 BAAAA  California/Nevada area     

P: 13FEB2025 169714    38.2N  118.8W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 11FEB2025 01:26:28  40.4N  126.3W ML=2.8  EMSC   OFF COAST OF NORTHERN CALIFORN

P: 12FEB2025 169804    40.5N  125.3W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

NEIC reported an earthquake of M 4.1 off the coast of northern California was felt with moderate intensity up to IV in the area(s) of northern California in Ferndale and Scotia; III in Fremont, Hayward, Alderpoint, Carlotta, Fortuna, Loleta, Meyers Flat, Petrolia and Rio Dell and II in Castro Valley, Eureka, Garberville, Hydesville and Whitethorn.

An earlier event of M 2.8 was reported with intensity II in Eureka, California.

 

ALASKA

 

O: 11FEB2025 01:09:51  53.9N  161.6W MB=4.5  EMSC   SOUTH OF ALASKA              

P: 14FEB2025 169847    54.7N  161.2W 3.5-4.9 BAAAA  Unimak Islands, Aleutians  

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 10FEB2025 08:02:05  44.8N  117.6W ML=2.7  EMSC   OREGON                        

P: 13FEB2025 169791    44.5N  116.2W 2.0-4.3 BAAAA  Montana/Idaho              

 

NEIC reported an earthquake of M 2.7 in Oregon was felt with moderate intensity up to II-III in the area(s) of Oregon at Baker City.

 

O: 10FEB2025 15:07:09  65.3N  134.4W ML=4.3  EMSC   NORTHERN YUKON TERRITORY, CANA

P: 14FEB2025 169857    66.9N  135.8W 3.0-5.0 BBAAA  Northern Alaska            

 

ROCKY MOUNTAINS REGION

 

O: 10FEB2025 20:19:04  31.6N  104.3W ML=2.0  EMSC   WESTERN TEXAS

O: 11FEB2025 05:48:12  31.6N  104.2W ML=2.2  EMSC   WESTERN TEXAS

O: 10FEB2025 09:27:14  31.7N  104.3W ML=2.4  EMSC   WESTERN TEXAS

O: 10FEB2025 19:58:40  31.7N  104.3W ML=2.8  EMSC   WESTERN TEXAS

O: 10FEB2025 21:55:15  31.5N  104.2W ML=2.3  EMSC   WESTERN TEXAS                

P:  7FEB2025 169472    32.5N  104.6W 2.0-4.1 BAAAA  SW U.S.A                   

 

O: 11FEB2025 06:03:50  47.5N  115.8W ML=3.3  EMSC   NORTHERN IDAHO               

P:  1FEB2025 169517    48.0N  115.0W 2.0-4.1 CAAAA  Montana/Idaho              

 

NEIC reported an earthquake of M 3.3 in Idaho was felt with moderate intensity up to IV in the area(s) of northern Idaho at Mullan; III in Kellogg, Wallace; II in Coeur D Alene and Post Falls and possibly as far as Spokane, Washington.

 

EASTERN U.S./CANADA

 

O: 10FEB2025 23:18:30  35.1N   97.6W ML=2.4  EMSC   OKLAHOMA                     

P: 10FEB2025 169493    36.0N   97.0W 2.0-4.2 AAAAA  Southern Plains            

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

CAYMAN ISLANDS FAR-FIELD AFTERSHOCKS DOMINATE

 

EARTHQUAKE SUMMARY FOR FEBRUARY 9, 2025

 

Today's global seismicity was dominated by earthquakes that appear to be far-field aftershocks from the M 7.6 yesterday in the Cayman Islands, Caribbean. These locations were identified in the previous issue of this summary and are listed below. Added to that list is a "*" to locations which have already seen moderate earthquakes since the Cayman Islands event.

 

The most unusual of these far-field events today following the Cayman Islands was an  M 4.9 in Yemen. Before beginning this discussion, however, it should be noted that while NEIC initially listed this event with phase returns and was joined by seismic network, BUD, there may be some question about the occurrence of this event. Since then NEIC has removed this event from their listing and EMSC is the only major network still showing it. This could result by interference from wave forms from other events, the strong flare at the time of the Yemen event or by mislocation by automatic locating systems, but both NEIC and BUD indicate it was manually located. This is the strongest event in Yemen within about 100 km  of this epicenter since an M 5.1 on May 15, 2019 but no earthquakes within about 100 km of today's epicenter of equal of larger magnitude have been recorded in the past 35 years.

 

Today's Yemen earthquake occurred at 120.0 degrees from the Cayman Islands epicenter and was likely a FFA from that event at the third node. Readers may recall that the Cayman Islands event was also at 120,0 degrees from the M 6.8 in Kyushu of  January 13, 2025. In the immediate aftermath of the M 7.6 in the Caribbean, the third node today was especially active. In addition to the Yemen event moderate quakes hit near this third node in Afghanistan, Solomon Islands, New Britain,  and Xizang, China.

 

Forecast 169406 had expected regional seismic enhancement was likely near Yemen in the Gulf of Aden in early February, 2025.

 

O: 10FEB2025 00:20:49  13.1N   45.8E MB=4.9  EMSC   NEAR THE COAST OF YEMEN      

P:  4FEB2025 169406    13.0N   51.0E 3.5-5.2 CACAA  Gulf of Aden               

 

The event in Yemen followed an M 5.8-5.9 in Vanuatu near local solar noon, the largest earthquake in the world today and was followed by an M 5.4 in the Solomon Islands eight minutes later. The earthquakes in Yemen and the Solomon Islands are both at the third node from the Cayman Islands. A P-diff seismic wave originating in Vanuatu may have been in the area of the Yemen quake at the time of this later occurrence, but this seems unlikely. Other earthquakes within about 15 minutes of the Yemen event today of significance occurred as a second M 5.4 in Vanuatu; an M 4.0 in Bali, Indonesia, and an M 5.4 in the Solomon Islands. These moderate earthquakes may have been triggered by the occurrence of the strongest solar flare in the past two days an M1.1 flare which began about 23:50 UT on February 9 as a smaller event but continued beginning with the Yemen earthquake reaching a peak several Minutes later at the time of the Solomon Islands event. Preliminary SWPC data for this flare follow:

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

XXXX       0010   0038      0130   M1.1      (February 10, 2025)   1.1E-02  

Vanuatu M 5.8 00:10 UT

Yemen M 4.9 00:21 UT

Bali M 4.0 00:25 UT

Solomon Is. M 5.4 00:28 UT

Puerto Rico M 3.8 00:43 UT

 

 

NEIC reported the earthquakes of M 5.9 and M 5.4 in Vanuatu were felt with moderate intensity up to V in the area(s) of  Vanuatu at Vila Shefa.

 

Forecast 169584 had expected the Vanuatu event was likely in early February within about 50 km of today's M 5.8 (and aftershocks) in Vanuatu.

 

O: 10FEB2025 05:48:38  17.4S  167.7E MB=4.7  EMSC   VANUATU                       

O: 10FEB2025 00:16:03  17.5S  167.8E mb=5.4  EMSC   VANUATU

O: 10FEB2025 00:09:43  17.5S  167.9E MW=5.8  EMSC   VANUATU                      

P:  5FEB2025 169584    18.0S  168.0E 4.0-5.6 BAAAA  Vanuatu Islands            

 

 

NEIC reported the earthquake of M 5.3 in the Solomon Islands was felt with moderate intensity up to II-III in the area(s) of the Solomon Islands at Honiara, Guadalcanal.

 

Forecast 169393 had expected enhanced seismicity in the Solomon Islands was likely in early February, 2025.

 

O: 10FEB2025 00:28:22   7.1S  155.7E MW=5.4  EMSC   SOLOMON ISLANDS              

P:  6FEB2025 169393     9.0S  158.0E 4.0-5.4 BBBAA  Solomon Islands            

 

Expected Far-field earthquake triggering from energy emitted at the Cayman Islands epicenter today may be seen in some of the following locales:

 

Antipodal (~180 degrees)

 

Cayman Island to South of Sumatra*

 

Outer shadow zone edge (141-148 degrees)

 

Cayman Islands to North of North Island, Kermadec Is. Fiji*, Tonga, New Zealand, Myanmar, Mindanao, Talaud*, Halmahera, Indonesia, south Australia*

added:

 

Node 3 (120 degrees)

 

Cayman Islands to Xizang*, Pakistan, Afghanistan*, Yemen*, Ethiopia*, Solomon Is*, New Ireland/New Britain*, Kyushu, Japan

 

P- and S- shadow zone edge and node 7 (101-110 degrees)

 

Cayman Islands to South of Africa, Southern Kuril Islands, Hokkaido*, Northern Honshu, Japan,  north of North Island, Kermadec Is, New Zealand, Tonga/Fiji*, Angola, Israel, Jordan, eastern TurkeyCaucasus, Mongolia, Sea of Japan, Sakhalin.

 

Node 4 (90 degrees)

 

Cayman Islands to Western Turkey,  Dodecanese Islands*, Greece*,  Kamchatka*, Samoa, 

 

Node 5 (72 degrees)

 

Cayman Islands to Unimak Island, Alaska, Bering Sea, Arctic Ocean, Central Mid-Atlantic, Sicily*, Malta,

 

Node 6 (60 degrees)

 

Cayman Islands to Central Mid-Atlantic, eastern Alaska, Chile Rise, Gulf of Alaska, Iceland, Araucania, Chile, 

 

Node 7 (52 degrees)

 

Cayman Islands to Coquimbo,  Central Chile, SE Alaska, Yukon, Canada, Azores*, ,

 

Among far-field aftershocks that occurred immediately yesterday was an M 4.7 in the area south of the Fiji Islands and an M 3.7 in Hokkaido, Japan. These events were located at 103 and 105 degrees from the Cayman Islands epicenter respectively. An earthquake in the Fox Islands, Alaska of M 3.7 occurred at the fifth node (72 degrees) from the Cayman Islands, and moderate earthquakes occurred near the fourth node (90 degrees) in the Dodecanese Islands, Greece.

 

An M 5.2 was the strongest earthquake today in the earthquake storm in the Dodecanese Islands, Greece. NEIC reported it was felt with intensity up to IV in Kiklades, Greece at Mpatsi and Paros and III in Greece at Viron, Naxos and in Turkey at Izmir and Bodrum, Mugla with intensity II in Menderes and in Greece at Athens, Rodos and Apollonia.

 

Forecasts 169439 and 169438 had expected enhanced seismicity in the Dodecanese

Island was likely in early February, 2025.

 

O: 09FEB2025 08:06:31  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 09:02:06  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 11:54:43  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 11:59:45  36.6N   25.7E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 15:16:31  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 15:55:28  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 17:18:12  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 18:41:43  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 18:53:58  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 19:16:46  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 19:25:12  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 19:31:40  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 20:35:42  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 01:00:00  36.6N   25.6E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O:  9FEB2025 19:05:39  36.7N   25.6E MW=5.2  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 BAAAA  Aegean Sea                 

P:  9FEB2025 169438    35.0N   25.0E 3.0-5.5 ABAAA  Aegean Sea                 

 

 

While much of the moderate or unusual earthquakes in the world today could be attributed as far-field aftershocks from the M 7.6 in the Cayman Islands (see above) antipodal earthquakes to the tropical cyclones also continued today. The most unusual of these were an M 4.2 and M 3.9 off the coast of northern Mexico in the area of Islas Marias, Nayarit, Mexico. This is the strongest earthquake within about 150 km of this epicenter since an M 4.1 on February 16, 2023. An earthquake of M 4.7 occurred about 200 km from today's epicenter one year ago today as an M 4.7 on February 9, 2024, the last regional event with M>=3.9. Both of these February earthquakes were associated with Tropical Cyclones near the antipode in the South Indian Ocean.  The last earthquake in the area of significantly larger magnitude was an M 5.7 on June 4, 2021.  At the time this summary noted:

 

"In the past several decades earthquakes of M>=5.6 have occurred approximately every 10 years within about 200 km of today's epicenter These occurred as an M 5.6 on April 1, 1991; an M 6.1 on November 13, 2001; an M 5.6 on September 14, 2010 and today's event of M 5.6 on July 4, 2021." (July 4, 2021)

 

Today's events are antipodal earthquakes to Tropical Cyclone Vince which passed over this the antipode south of India at the time of today's earthquake in Nayarit, Mexico.

 

Data and analyses of Tropical Storm Vince below as published in the previous issue of this summary illustrates the antipodal natures of the Vince and the M 3.9 in Nayarit.

 

TC    VINCE    2025-02-10  00:00 UT  20.3S   74.0E  150 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean northwest western Australia with winds up to 150 kts.  It is expected to track to the west and south over the next several days. The antipode at 21N 107W is in Colima,  Mexico. Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days.

 

and

 

"TC    VINCE    2025-02-09  00:00 UT  19.8S   76.0E  160 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean northwest western Australia with winds up to 160 kts.  It is expected to track to the west and south over the next several days. The antipode at 19N 104W is in Colima,  Mexico. Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days." (February 9, 2025)

 

The earthquakes in Nayarit, Mexico were also coincident with a moderate solar flare - SWPC #2870 which began at the same time as the earthquakes in Nayarit. It is possible that SFE from this flare triggered this Mexican activity. SWPC data for this flare follow:

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

2870       2018   2025      2030   C3.9      (February 9, 2025)   2.1E-03  

Nayarit M 3.9, 4.2 20:18 UT

 

 

Forecast 169412 had expected enhanced seismicity near Nayarit, Mexico was

likely around February 8, 2025.

 

O: 09FEB2025 20:17:41  21.3N  106.5W ML=3.9  EMSC   ISLAS MARIAS REG., NAYARIT, MEX.

O:  9FEB2025 20:16:18  21.6N  106.1W ML=4.2  EMSC   OFFSHORE NAYARIT, MEXICO     

P:  8FEB2025 169412    19.0N  105.0W 3.5-5.5 ACAAA  Michoacan, Mexico          

 

Antipodal activity to the other Tropical Cyclone south of Indonesia (TC Taliah)  also continued today. The current location of this cyclone is noted in this summary as:

 

TC    TALIAH   2025-02-10  00:00 UT  14.5S   91.0E  050 kts  South of Sumatra   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 50 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 14N 90W is near Guatemala and Honduras. It is likely that this area of Central America will see additonal enhanced seismicity while Taliah is active.

 

Two moderate earthquakes (perhaps aftershocks) were recorded in Guatemala today as TC Taliah was near the antipode. These included an M 4.5 and 3.8 at 14M 91W and a series of aftershocks in the Cayman Islands, Honduras, El Salvador and Nicaragua. TC Taliah will not be directly antipodal to Guatemala for another day and enhanced seismicity is likely in the area of Guatemala and El Salvador in the next two days due to antipodal effects from TC Taliah.

 

Aftershocks also continued today in the Cayman Islands area. Several of these, including event of M 4.8 and M 4.6 were felt in Yucatan, Mexico with intensity up to III at Merida and in Bonfil Quintana Roo, Mexico and perhaps as far as Miami Beach, Florida.

 

This activity in the Cayman Islands had been anticipated in forecast 169415 to occur within about 200 km of these events around February 6, 2025.

 

O: 09FEB2025 08:21:32  17.6N   82.8W mb=4.6  EMSC   CAYMAN ISLANDS REGION

O: 09FEB2025 09:14:07  17.6N   82.9W mb=4.8  EMSC   CAYMAN ISLANDS REGION

O:  9FEB2025 23:46:18  17.5N   83.6W MB=4.2  EMSC   NORTH OF HONDURAS            

P:  6FEB2025 169415    17.0N   85.0W 3.5-5.2 BABAA  Nicaragua                  

 

 

An unusual earthquake of M 4.7 occurred today on the Western Indian-Antarctic Ridge. It was not reported felt in this remote area and occurred near local solar midnight, possibly being promoted by tidal stresses which maximize near this hour. The last earthquake of M>=4.7 within about 200 km of this epicenter was an M 4.9 on November 24, 2023.

 

Today's Antarctic Ridge epicenter is at 143 degrees from the Cayman Islands epicenter and was probably an FFA from that event.

 

Forecast 169616 had expected this event was likely within about 100 km around

February 10, 2025.

 

O:  9FEB2025 16:38:04  49.4S  123.3E MB=4.7  EMSC   WESTERN INDIAN-ANTARCTIC RIDGE

P: 10FEB2025 169616    49.0S  122.0E 4.0-5.4 AAAAA  So. of Australia           

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 09FEB2025 17:39:05  23.3N  120.6E Mw=4.0  EMSC   TAIWAN

O: 10FEB2025 02:39:54  23.2N  120.5E ML=4.0  EMSC   TAIWAN                        

P:  8FEB2025 169436    21.0N  120.0E 4.0-5.4 ACAAA  Taiwan                     

 

O:  9FEB2025 19:31:55  27.6N   87.4E ML=4.0  EMSC   NEPAL                        

P:  3FEB2025 169500    28.0N   87.0E 3.8-5.3 CAAAA  Xizang                      

 

O: 10FEB2025 05:53:48  28.0N   52.1E ML=4.0  EMSC   SOUTHERN IRAN                

P:  9FEB2025 169435    28.0N   52.0E 3.5-5.0 AAAAA  So. Iran/Persian Gulf      

 

O: 09FEB2025 15:23:34  28.1N   87.4E mb=4.2  EMSC   WESTERN XIZANG

O: 09FEB2025 19:28:08  28.4N   87.7E ML=4.1  EMSC   WESTERN XIZANG

O:  9FEB2025 11:26:59  28.0N   87.4E ML=4.6  EMSC   WESTERN XIZANG               

O:  9FEB2025 07:37:02  29.2N   86.4E MB=4.3  EMSC   WESTERN XIZANG               

P:  3FEB2025 169500    28.0N   87.0E 3.8-5.3 CBAAA  Xizang                     

 

O:  9FEB2025 16:38:54  36.4N   71.0E MB=4.2  EMSC   HINDU KUSH REGION, AFGHANISTAN

P:  9FEB2025 169454    38.0N   72.0E 3.8-5.2 ABAAA  Hindu Kush/Pakistan        

 

O:  9FEB2025 22:06:16  52.7N  159.8E MB=4.2  EMSC   OFF EAST COAST OF KAMCHATKA  

P:  9FEB2025 169548    53.0N  160.0E 4.0-5.5 AAAAA  E. of Kamchatka            

 

This epicenter is at the fourth node (90 degrees) from the Cayman Islands and

was probably promoted by energy from that source.

 

INDONESIA AND PHILIPPINES

 

O:  9FEB2025 11:35:10   2.0S  128.4E MB=4.7  EMSC   KEPULAUAN OBI, INDONESIA     

P:  9FEB2025 169377     4.0S  127.0E 4.0-5.4 ABBAA  Ceram area                 

 

This epicenter is at 145 degrees from the Cayman Islands and was probably

promoted by energy from that source.

 

O: 10FEB2025 00:28:22   7.1S  155.7E MW=5.4  EMSC   SOLOMON ISLANDS              

P:  6FEB2025 169393     9.0S  158.0E 4.0-5.4 BBBAA  Solomon Islands            

 

O: 10FEB2025 00:25:29   9.6S  114.8E ML=4.0  EMSC   SOUTH OF BALI, INDONESIA     

P:  8FEB2025 169582    11.0S  115.0E 4.0-5.6 ABAAA  So. of Indonesia           

 

BMG  reported an earthquake of M 5.3 South of Sumatra, Indonesia  was felt with  intensity up to X+ in the area(s) of Pos Observasi Geofisika Lembang and II in Kab. Ogan Komering, Bengkulu, Kaur, Lampung, Tulang Bawang, Pesisir, Ogan, Iahat.

 

BMG reported an earthquake of M 5.3 in Papua New Guinea (2S 139E) was felt with  intensity up to IV in the area(s) of Papua at Sarmi, Pantaim Bonggo, Apawer and III in Mamberamo Raya with lesser shaking in Jayapura, Jayawijaya, Yapen, Keerom, Yahukimo, Tolikara, Waropen, Mamberano, Yalimo, Lanny Jaya, Puncak, Intan.

 

CENTRAL AND SOUTH AMERICA

 

O:  9FEB2025 11:10:48  16.9N   99.8W ML=4.1  EMSC   GUERRERO, MEXICO             

P:  8FEB2025 169419    17.0N   99.0W 3.5-5.8 AAAAA  Oaxaca, Mexico             

 

O: 10FEB2025 07:06:06   2.8S   79.9W ML=4.0  EMSC   NEAR COAST OF ECUADOR        

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 BABAA  Ecuador                     

P:  8FEB2025 169378     1.0S   81.0W 4.0-5.4 ABAAA  Ecuador                    

 

O:  9FEB2025 23:31:30   8.7N   82.2W ML=4.1  EMSC   PANAMA-COSTA RICA BORDER REGIO

P:  6FEB2025 169363     7.0N   82.0W 3.5-5.1 BBAAA  Costa Rica                 

 

O: 10FEB2025 01:12:41  11.6N   85.8W ML=4.0  EMSC   NICARAGUA

O:  9FEB2025 23:56:10  11.6N   85.8W ML=4.0  EMSC   NICARAGUA                    

P:  9FEB2025 169414    11.0N   86.0W 3.5-5.1 AAAAA  Nicaragua                  

 

O: 10FEB2025 00:22:01  18.1N   67.4W MD=3.1  EMSC   MONA PASSAGE, PUERTO RICO    

P:  7FEB2025 169420    19.0N   68.0W 3.4-5.1 BAAAA  Puerto Rico                

P:  8FEB2025 169424    20.0N   67.0W 3.0-4.6 ABAAA  Bahamas/No. Caribbean      

 

O:  9FEB2025 13:05:45  18.2N   71.4W ML=3.0  EMSC   DOMINICAN REPUBLIC           

P:  5FEB2025 169424    20.0N   71.0W 3.0-4.6 BBAAA  Bahamas/No. Caribbean      

 

O:  9FEB2025 14:12:25  18.8N  103.7W ML=4.0  EMSC   COLIMA, MEXICO               

P:  7FEB2025 169412    19.0N  103.0W 3.5-5.3 AAAAA  Michoacan, Mexico          

 

O: 10FEB2025 00:43:56  19.6N   65.4W MD=3.8  EMSC   PUERTO RICO REGION           

P:  8FEB2025 169424    20.0N   67.0W 3.0-4.6 AABAA  Bahamas/No. Caribbean      

 

O:  9FEB2025 22:39:27  27.8N  111.9W ML=4.3  EMSC   GULF OF CALIFORNIA           

P:  7FEB2025 169471    30.2N  114.1W 2.0-4.1 ACBAA  SW U.S.A                   

 

O: 10FEB2025 06:53:28  28.9N  113.2W ML=4.0  EMSC   GULF OF CALIFORNIA           

P:  7FEB2025 169471    30.2N  114.1W 2.0-4.1 BBAAA  SW U.S.A                    

 

O: 09FEB2025 08:21:32  17.6N   82.8W mb=4.6  EMSC   CAYMAN ISLANDS REGION

O: 09FEB2025 09:14:07  17.6N   82.9W mb=4.8  EMSC   CAYMAN ISLANDS REGION

O:  9FEB2025 23:46:18  17.5N   83.6W MB=4.2  EMSC   NORTH OF HONDURAS            

P:  6FEB2025 169415    17.0N   85.0W 3.5-5.2 BABAA  Nicaragua                  

 

O: 09FEB2025 20:17:41  21.3N  106.5W ML=3.9  EMSC   ISLAS MARIAS REG., NAYARIT, MEX.

O:  9FEB2025 20:16:18  21.6N  106.1W ML=4.2  EMSC   OFFSHORE NAYARIT, MEXICO     

P:  8FEB2025 169412    19.0N  105.0W 3.5-5.5 ACAAA  Michoacan, Mexico          

 

NEIC reported an earthquake of M 4.5 in Guatemala was felt with moderate intensity up to II in the area(s) of  Guatemala at San Jose Pinula.

 

AFRICA AND EUROPE

 

O: 09FEB2025 08:06:31  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 09:02:06  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 11:54:43  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 11:59:45  36.6N   25.7E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 15:16:31  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 15:55:28  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 17:18:12  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 18:41:43  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 18:53:58  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 19:16:46  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 19:25:12  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 19:31:40  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 20:35:42  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 10FEB2025 01:00:00  36.6N   25.6E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O:  9FEB2025 19:05:39  36.7N   25.6E MW=5.2  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 BAAAA  Aegean Sea                 

P:  9FEB2025 169438    35.0N   25.0E 3.0-5.5 ABAAA  Aegean Sea                 

 

O: 10FEB2025 00:20:49  13.1N   45.8E MB=4.9  EMSC   NEAR THE COAST OF YEMEN      

P:  4FEB2025 169406    13.0N   51.0E 3.5-5.2 CACAA  Gulf of Aden               

 

O:  9FEB2025 20:55:16  35.4N   22.3E MB=4.2  EMSC   CENTRAL MEDITERRANEAN SEA    

P:  4FEB2025 169460    36.0N   22.0E 3.0-4.7 BAAAA  No. Greece                 

 

This epicenter is at the fourth node (90 degrees) from the Cayman Islands and

was probably promoted by energy from that source.

 

O:  9FEB2025 15:12:00  36.4N    4.5W ML=2.9  EMSC   STRAIT OF GIBRALTAR          

P:  4FEB2025 169458    37.0N    6.0W 3.5-5.1 BAAAA  Morocco/Spain              

 

 

SOUTHWEST PACIFIC

 

O:  9FEB2025 14:32:39  10.1S  161.1E MW=5.3  EMSC   SOLOMON ISLANDS               

P:  6FEB2025 169578    10.0S  161.0E 4.0-5.4 BAAAA  No. of Santa Cruz Islands  

P: 10FEB2025 169578    10.0S  160.0E 4.0-5.6 AAAAA  No. of Santa Cruz Islands  

 

O: 10FEB2025 05:48:38  17.4S  167.7E MB=4.7  EMSC   VANUATU                      

O: 10FEB2025 00:09:43  17.5S  167.9E MW=5.8  EMSC   VANUATU                      

P:  5FEB2025 169584    18.0S  168.0E 4.0-5.6 BAAAA  Vanuatu Islands            

 

O:  9FEB2025 09:58:42  15.5S  167.7E MB=4.6  EMSC   VANUATU                      

P:  2FEB2025 169584    15.0S  168.0E 4.0-5.4 CAAAA  Vanuatu Islands            

 

O: 10FEB2025 05:48:38  17.4S  167.7E MB=4.7  EMSC   VANUATU                      

O: 10FEB2025 00:16:03  17.5S  167.8E mb=5.4  EMSC   VANUATU

O: 10FEB2025 00:09:43  17.5S  167.9E MW=5.8  EMSC   VANUATU                      

P:  5FEB2025 169584    18.0S  168.0E 4.0-5.6 BAAAA  Vanuatu Islands            

 

O: 10FEB2025 03:51:40  21.6S  179.3W MB=4.5  EMSC   FIJI REGION                  

P:  8FEB2025 169597    23.0S  177.0W 4.0-5.5 ABCAA  Tonga Islands              

 

This epicenter is at 102 degrees from the Cayman Islands and was probably

promoted by energy from that source.

 

OCEAN RIDGES

 

 

O:  9FEB2025 16:38:04  49.4S  123.3E MB=4.7  EMSC   WESTERN INDIAN-ANTARCTIC RIDGE

P: 10FEB2025 169616    49.0S  122.0E 4.0-5.4 AAAAA  So. of Australia           

 

This epicenter is at 143 degrees from the Cayman Islands and was probably

promoted by energy from that source.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia

today.

 

JAPAN AND KURIL ISLANDS

 

O:  9FEB2025 08:32:17  30.5N  142.1E MB=4.8  EMSC   IZU ISLANDS, JAPAN REGION    

P:  4FEB2025 169488    30.0N  143.0E 4.0-5.4 BAAAA  So. of Honshu              

 

O:  9FEB2025 14:42:42  34.5N  136.9E MB=4.1  EMSC   WESTERN HONSHU, JAPAN        

P:  8FEB2025 169461    35.0N  136.0E 3.5-5.0 AAAAA  No. Honshu, Japan          

 

O:  9FEB2025 08:36:08  48.5N  150.9E MB=4.4  EMSC   NORTHWEST OF KURIL ISLANDS   

P:  9FEB2025 169535    47.0N  153.0E 3.5-5.4 ABBAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  9FEB2025 22:43:45  32.0N  117.1W ML=3.6  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P:  5FEB2025 169474    32.8N  118.3W 2.5-4.5 BAAAA  So. California              

 

O:  9FEB2025 08:24:26  32.7N  115.7W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P:  9FEB2025 169473    32.5N  115.7W 2.5-4.8 AAAAA  So. California             

 

O:  9FEB2025 15:14:57  33.9N  119.1W ML=2.0  EMSC   CHANNEL ISLANDS REG., CALIFORN

P:  7FEB2025 169477    33.8N  119.7W 2.5-4.5 AAAAA  So. California             

P:  9FEB2025 169481    34.7N  119.0W 2.5-4.4 AAAAA  So. California             

 

O:  9FEB2025 08:29:21  35.6N  118.3W ML=2.2  EMSC   CENTRAL CALIFORNIA           

P:  8FEB2025 169483    35.6N  118.4W 2.5-4.7 AAAAA  So. California             

 

O:  9FEB2025 14:48:10  36.7N  116.3W ML=2.1  EMSC   NEVADA                       

P:  8FEB2025 169484    35.8N  117.6W 2.5-4.6 AAAAA  So. California             

 

O: 10FEB2025 05:46:29  38.5N  118.5W ML=2.0  EMSC   NEVADA                       

P:  8FEB2025 169443    38.7N  119.7W 2.5-4.8 AAAAA  California/Nevada area     

 

O:  9FEB2025 18:13:04  38.8N  122.8W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P: 10FEB2025 169448    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 10FEB2025 04:05:57  40.1N  122.0W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P:  9FEB2025 169523    40.6N  122.4W 2.5-4.4 AAAAA  Northern California        

 

O: 09FEB2025 23:49:29  40.3N  124.6W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 09FEB2025 10:31:51  40.4N  125.0W ML=3.2  EMSC   OFFSHORE NORTHERN CALIFORNIA

O:  9FEB2025 07:03:39  40.3N  124.9W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  9FEB2025 169523    40.0N  123.0W 2.5-4.4 AABAA  Northern California        

 

NEIC reported an earthquake of M 3.3 off northern California  was felt with moderate intensity up to II-III in the area(s) of northern California at Arcata.

 

O:  9FEB2025 10:52:06  41.8N  126.8W ML=2.9  EMSC   OFF COAST OF NORTHERN CALIFORN

P:  7FEB2025 169525    43.1N  126.5W 3.0-4.5 ABAAA  Off Coast of Oregon        

 

O: 09FEB2025 21:02:35  41.9N  119.6W ML=2.1  EMSC   NEVADA

O: 10FEB2025 02:25:36  41.9N  119.6W ML=2.9  EMSC   NEVADA                       

P:  9FEB2025 169503    40.2N  119.6W 2.5-4.6 ABAAA  California/Nevada area     

 

 

ALASKA

 

O:  9FEB2025 07:29:43  57.5N  150.2W ML=3.4  EMSC   GULF OF ALASKA               

P:  5FEB2025 169561    60.3N  153.0W 3.2-5.3 BCBAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O: 10FEB2025 04:40:43  32.4N  102.0W ML=2.0  EMSC   WESTERN TEXAS                

P:  7FEB2025 169472    32.5N  104.6W 2.0-4.1 BAAAA  SW U.S.A                   

 

O:  9FEB2025 14:39:27  41.6N  109.9W ML=3.0  EMSC   WYOMING                      

P:  7FEB2025 169504    41.9N  108.7W 2.0-3.9 AAAAA  Colorado area              

 

EASTERN U.S./CANADA

 

O: 10FEB2025 07:23:30  46.4N   65.5W MB=1.3  ECAN OF HARCOURT, NB                

P:  7FEB2025 169505    46.0N   66.0W 2.0-3.9 BAAAA  E. of Maine                

 

O:  9FEB2025 08:07:02  46.2N   76.9W MB=0.7  ECAN OF PEMBROKE, ON                

P:  5FEB2025 169528    46.0N   81.0W 2.0-3.9 BACAA  Ohio/Lake Erie             

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

MAJOR EARTHQUAKE STRIKES CAYMAN ISLANDS, CARIBBEAN

 

EARTHQUAKE SUMMARY FOR FEBRUARY 8, 2025

 

 

A major to great earthquake occurred today in the Cayman Islands, northern Caribbean. The mainshock of M 7.6 (NEIC, EMSC) to 8.0 (PT, AT) was probably nearest the M 7.6 magnitude, a level reported by nearly all seismic networks. It was preceded by an M 4.3 earlier in the day (See previous issue of this summary) and followed by several felt aftershocks.  An aftershock of M 4.8 was reported felt with light intensity in Belize, Honduras an northern Mexico. It was reported by NEIC to have been widely felt with maximum intensity VII (Slight damage) in Honduras at Gracias a Dios in Paptalaya, and Puerto Lempira and VI at Iralaya. Intensity IV was felt in Dangriga Stann Creek, Belize and in Hopewell, Hanover, Jamaica as well as in Honduras at San Ignacio and Savannah Bight Islas de la Bahia. Lesser shaking of intensity II-III was reported in Puerto Rico, Florida, Ohio, Belize, Cayman Islands, Guatemala, Honduras, Mexico in Quintana Roo and Yucatan, Massachusetts, South Carolina, Kentucky, Illinois, Venezuela, Colombia, Jamaica, Panama, Puerto Rico, North Carolina. EMSC reported it was felt with moderate intensity and sound in George Town and West Bay, Cayman Islands, and lightly in West End, Honduras; Playa del Carmen and Cancun, Mexico, Belize City, and Ladyville, Belize,  in Mexico at Chetumal, Bacalar, in Tegucigalpa, Honduras, San Salvador, El Salvador, Miami, Florida. A tsunami was reported by PTWC at Isla Mjheres, Mexico with height of 0.04 meters.

 

The last earthquake in the world with M>=7.6 was an M 7.6 in Mindanao, Philippines on December 2, 2023 and before that an M 7.7 on May 19, 2023. The last of significantly larger magnitude in the world was an m 7.8 two years ago on February 6, 2023 in Turkey. Two earthquakes of M>=7.6 have hit within about 500 km of today's epicenter in the Caribbean Sea in the past 35 years. These were located as an M 7.7 in western Cuba on January 28, 2020 and near today's epicenter in the Cayman Islands on January 10, 2018. At the time this summary noted:

 

 

"A major earthquake of M 7.6 hit north of Honduras today. This is the largest earthquake in the world in the four months since the M 8.2 in Chiapas, Mexico of September 8, 2017. This event may have caused a tsunami as receding sea levels were observed in some areas, but at this time PTWC has cancelled the tsunami threat warning. The tectonics which are largely horizontal in this area do not conform to large tsunamis originating in the area north of Honduras. This could be the beginning of a new round of large to major earthquakes around the world in the remaining days of January. Quiet seismic conditions for the past two month have led to a deficit in large events, one which may be made up for in coming days. In recent years mid-January has seen a number of major damaging earthquakes. These included the M 7.2 in Haiti of January 12, 2010 and an M 6.5 in Puerto Rico on January 13, 2014. This summary had anticipated a possible large earthquake in this area in previous summaries as:

 

"TC Irving (04S) formed today south of Sumatra, Indonesia with winds  up to 45 kts. It is expected to track to the south over the next five days. This is not a seismic zone but the antipode in El Salvador and Guatemala at 12N 89W is and could see some promoted seismicity in this active zone which has seen several moderate earthquakes in the past several days." (January 6-7, 2018)

 

...

 

While this epicenter is far from populated areas, it was widely felt within about 2000 km of the epicenter. Maximum shaking of VI was reported by NEIC in Quebrada de Arena, Colon, Honduras and V in Savannah Bight, Islas de la Bahia, Honduras. Shaking was reported from Honduras, Nicaragua, Belize, Mexico, El Salvador, Costa Rica, Florida, Guatemala, Panama, Florida, Alabama, Puerto Rico, Virgin Islands, Kentucky, Missouri. Moderate aftershocks were also felt in Honduras and Belize. Moderate swarms in Central America preceded the Honduras event in Oaxaca and Chiapas, Mexico and in Costa Rica. Light to moderate earthquakes in the active regions of Kansas and Oklahoma have all but disappeared in the last week. It will be interesting to see if this regional seismicity returns in the next week following the changes in regional stresses following the event in Honduras. A strong earthquake hit the same area north of Honduras on May 28, 2009 (M 7.3)  but this is the strongest earthquake in the region within about 300 km of this epicenter in the past 25 years at least." (January 10, 2018)

 

Far-field earthquake triggering from energy emitted at the Cayman Islands epicenter today may be seen in some of the following locales:

 

Antipodal (~180 degrees)

 

Cayman Island to South of Sumatra

 

Outer shadow zone edge (141-148 degrees)

 

Cayman Islands to North of North Island, Kermadec Is. Fiji, Tonga, New Zealand, Myanmar, Mindanao, Talaud, Halmahera, Indonesia, south Australia

 

Node 3 (120 degrees)

 

Cayman Islands to Xizang, Pakistan, Afghanistan, Yemen, Ethiopia, Solomon Is, New Ireland/New Britain, Kyushu, Japan

 

P- and S- shadow zone edge and node 7 (101-110 degrees)

 

Cayman Islands to South of Africa, Southern Kuril Islands, Hokkaido, Northern Honshu, Japan,  north of North Island, Kermadec Is, New Zealand, Tonga/Fiji, Angola, Israel, Jordan, eastern TurkeyCaucasus, Mongolia, Sea of Japan, Sakhalin.

 

Node 4 (90 degrees)

 

Cayman Islands to Western Turkey,  Dodecanese Islands, Greece,  Kamchatka, Samoa, 

 

Node 5 (72 degrees)

 

Cayman Islands to Unimak Island, Alaska, Bering Sea, Arctic Ocean, Central Mid-Atlantic, Sicily, Malta,

 

Node 6 (60 degrees)

 

Cayman Islands to Central Mid-Atlantic, eastern Alaska, Chile Rise, Gulf of Alaska, Iceland, Araucania, Chile, 

 

Node 7 (52 degrees)

 

Cayman Islands to Coquimbo,  Central Chile, SE Alaska, Yukon, Canada, Azores, ,

 

Today's activity in the Cayman Islands is at the third node (120 degrees) from the

M 6.8 in Kyushu, Japan of January 13, 2025 and may have been promoted by energy from that source.

 

Forecast 169415 had expected enhanced activity in this area within about 200 km

of today's epicenter was likely around February 6, 2025.

 

O: 08FEB2025 23:23:16  17.7N   82.4W Mw=7.6  EMSC   CAYMAN ISLANDS REGION

O: 08FEB2025 23:23:16  17.7N   82.5W ML=7.6  NEIC   CAYMAN ISLANDS REGION

O: 08FEB2025 02:22:56  18.8N   81.8W ML=4.3  EMSC   CAYMAN ISLANDS REGION

O: 09FEB2025 00:23:06  17.7N   82.8W mb=4.2  EMSC   CAYMAN ISLANDS REGION

O: 09FEB2025 00:16:33  17.8N   82.1W mb=4.3  EMSC   CAYMAN ISLANDS REGION

O:  8FEB2025 23:51:06  17.5N   83.2W MB=4.8  EMSC   NORTH OF HONDURAS             

P:  6FEB2025 169415    17.0N   85.0W 3.5-5.2 AABAA  Nicaragua                  

 

Among far-field aftershocks that occurred immediately today was an M 4.7 in the area south of the Fiji Islands and an M 3.7 in Hokkaido, Japan. These events were located at 103 and 105 degrees from the Cayman Islands epicenter respectively. An earthquake in the Fox Islands, Alaska of M 3.7 occurred is at the fifth node (72 degrees) from the Cayman Islands, and moderate earthquakes occurred near the fourth node (90 degrees) in the Dodecanese Islands, Greece.

 

The  activity in the Dodecanese Islands is located at 142 degrees from the Vanuatu M 7.4 of December 17, 2024 and at the seventh node (51.4 degrees) from the M 7.1 in Tibet of January 7 and may have been promoted by energy from that source.

 

Forecast 169439 had expected this activity in the Dodecanese Islands was

likely around February 6.

 

O: 08FEB2025 08:16:39  36.6N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 08:56:16  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:00:41  36.6N   25.6E mb=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:07:19  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:10:07  36.6N   25.6E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:15:47  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:24:04  36.6N   25.6E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 16:18:41  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 16:29:58  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 16:51:46  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 17:15:13  36.6N   25.7E Mw=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 01:35:17  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 02:55:50  36.6N   25.6E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 04:47:32  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 05:01:59  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O:  8FEB2025 08:36:05  36.5N   25.6E MB=4.8  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

 

O:  8FEB2025 17:58:40  51.9N  173.2W ML=4.0  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P:  6FEB2025 169546    52.4N  174.3W 3.5-5.0 AAAAA  Andreanoff Isls, Aleutians 

 

Several hours before the M 7.6 in the Cayman Islands, an unusual earthquake of M 4.3 occurred at 141-142 degrees from that epicenter in Southern Australia. NEIC reported it was felt with intensity II in Cooma New South Wales, Australia. This is the strongest earthquake within about 200 km of this epicenter in South Australia since an M 4.9 on January 11, 2025. At the time this summary noted:

 

 

"An unusual earthquake of M 4.9 shook areas of southern Australia today. NEIC reported it was felt with intensity IV in South Australia at Port Augusta and Port Pirie with intensity II-III in Adelaide, Mount Gambier and Whyalla. The M 4.9 is the strongest earthquake within about 200 km of today's epicenter since an M 4.9 hit about 100 km southeast of this on March 22, 2023. At the time this summary noted:

 

 

"An unusual earthquake of M 4.9 occurred today off the southern coast of South Australia. NEIC reported it was felt with intensity IV in South Australia at Port Pirir and II-III in Whyalla, Gawler, Adelaide and Crafers-Bridgewater, Australia. The only earthquake with equal or larger magnitude within about 400 km of this epicenter in the past 35 years was a similar M 4.9 on October 8, 2021 about 400 km to the southeast of today's epicenter. At the time this summary noted:

 

"An unusual earthquake of M 4.9 occurred in Victoria, Australia today. NEIC reported it was felt with intensity II-III in Victoria and South Australia at Murray Bridge, Horsham, Midua, Moujnt Barker, Victor Harbor, Adelaide, Mount Gambler, Swan Hill, Hamilton and Maryborough. This is the strongest earthquake within about 300 km of this epicenter in at least 30 years. An M 4.8 hit the area on October 27, 2001 and about 400 km northwest of this on May 3, 1997, the only similar quakes in Victoria since 1990." (October 8, 2021, January 11, 2025)

 

 

 

 

O:  8FEB2025 18:48:47  32.0S  138.7E MB=4.3  EMSC   SOUTH AUSTRALIA              

 

Today's M 7.6 in the Cayman Islands may also have been promoted by a strong geomagnetic excursion. The high latitude Kp reached 6 between about 09:00 and 16:00 UT. This is the most disturbed since the beginning of February and only the fourth time  in the past month when Kp>=6 has been recorded by SWPC.

 

This summary had expected a major earthquake was likely at this time in South or Central America. For example on February 2, 2025 it was noted:

 

 

"This analysis of the event 15 years ago in this area of New Zealand was followed on February 27, 2010 by one of the greatest earthquakes of the century in Central Chile on February 27 with M 8.8. That event did tremendous damage to much of Central Chile. Could a repeat occur at this time. This summary identifies the coastline of South America as an area of significant danger of an strong seismic event in the next week." (January 27, 2025)

 

 

"The strongest earthquakes in South or Central America today were an M 4.8 in  central Peru and an unusual M 4.9 northeast of Colombia in the Caribbean Sea.

NEIC reported the Caribbean earthquake of M 4.9 in Colombia was felt with moderate intensity up to II-III in the area(s) of the Caribbean Sea northeast of Colombia at San Andres and Providencia.   The earthquake in the Caribbean Sea was the strongest within about 200 km of that epicenter since an M 6.0 and aftershocks on November 25, 2018." (January 29, 2025)

 

and

 

"While the predicted quality of these seemlingly random sets of earthquakes between unusual areas north of New Zealand and the coast of South America is not yet certain, they are certainly suggestive. It would therefore appear that canceling the forecast for South America at this time may be premature. Therefore this summary continues that forecast with the potential for a further strong event, probably in Chile, in the first week of February, 2025" (February 2, 2025)

 

The strongest earthquake in the past 24 hours occurred north of Tropical Cyclone Taliah south of Sumatra. This summary had discussed this event in the previous issue as:

 

"The strongest earthquake in the world today was an M 5.8 (NEIC, EMSC) to M 6.2 (BMG, GeoNet) south of Sumatra, Indonesia. It was not reported by NEIC to have been felt in this remote oceanic area. This earthquake at 9.8S 97.6E is nearly antipodal to the M 6.0 in  Guatemala two days ago and is near the current eye of Tropical Cyclone Taliah which has been given in the previous issue of this summary as:

 

"TC    TALIAH   2025-02-06  00:00 UT  14.9S  103.8E  080 kts  north of western Australia   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 80 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 15N 77W is off the coast of Central America and Honduras. It is likely that this area of Central America will see enhanced seismicity while Taliah is active." (February 6, 2025)

 

The location of Taliah at the time of the M 5.8 south of Sumatra was directly south of that epicenter. It is likely that this earthquake was promoted by energy associated with TC Taliah.

 

TC    TALIAH   2025-02-07  00:00 UT  15.5S   99.0E  055 kts  South of Sumatra   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 55 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 15N 80W is off the coast of Central America and Honduras. It is likely that this area of Central America will see enhanced seismicity while Taliah is active.

 

 

This event of M 5.8 south of Sumatra is the largest within about 300 km of this epicenter in at least 35 years. Other moderate earthquake have occurred in this area since 1990 as an M 5.4 on July 19, 2009 and an M 5.1 on September 25, 2006.

 

This summary had noted the antipodal nature of regional Tropical storms south of Indonesia and the Guatemala earthquake in the previous summary as:

 

 

"Today's event of M 5.7-6.0 ...  occurred near the antipode of Tropical Cyclone Vince (13S). In this and previous issues of this summary it had been anticipated a moderate to large earthquake could occur in Guatemala (the antipode of TC Vince) at this time as:

 

"TC    VINCE    2025-02-05  00:00 UT  17.8S   90.1E  125 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 125 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 90W is in Northern Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and could help promote a moderate to strong earthquake in that area in the next couple of days." (February 3-4, 7,  2025)

 

 

As noted in the previous issue of this summary, today's event in the Cayman

Islands is antipodal to the current position of Tropical Cyclone Taliah south of Sumatra, Indonesia. Analysis from the previous version of this (written before the M 7.6 Cayman Islands earthquake) follows:

 

The earthquake south of Sumatra may further enhance seismicity at the antipode about 16N 83W as noted below. It may have been promoted by Solar flare 2130 - a C3.2 which peaked at the same time as the event southwest of Sumatra.  SWPC data for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

2130       0419   0431      0438   C3.2      (February 7, 2025)   2.7E-03  

 

Ionian Sea M 4.5 04:26 UT

Southwest of Sumatra M 5.8-6.2 04:31 UT

 

 

The M 5.8 South of Sumatra on February 7, 2025 and antipodal earthquakes in the

Caribbean, Guatemala and Mexico reminds readers of the existence of enhanced seismicity antipodal to major Tropical Cyclones. This summary has been studying this phenomena for decades, but what constitutes an "antipodal earthquake"?

 

Following a major disturbance on the earth's surface energy on the surface is  focused by the spherical shape of the earth at the exact opposite point on the earth's surface - the antipode. Such disturbances can include a major earthquake, a major meteorological storm or a meteor/cometary collision. The last of these can often leave "strange terrain" in the antipodal tectonics and terrain, but smaller events are more difficult to ascertain in the antipodal area.  In general, antipodal seismicity occurs within several days of the main disturbance within several hundred km of the antipode. These events often occur at unusual epicenters off the normal fault zones with moderate magnitude. These can often be discerned prior to their occurrence.

 

Moderate earthquakes continued in the Dodecanese Islands, Greece today. The strongest of these was an M 5.1. EMSC reported it was felt with moderate intensity in Greece at Thira, Agios Georgios, Ermoupoli, Gazi, Glyfada, Elliniko, Cholargos, Chalandri, Amarousio, Kallithea, Moschato, Piraeus, Nea Erythraia, Corinth. This earthquake may have been promoted by SFE from the strong M2.0 class solar flare (#2530) which began three minutes before this earthquake. Data on this flare from SWPC follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

2530       0857   0927      0941   M2.0      (February 8, 2025)   3.3E-02  

Dodecanese M 5.1 09:00 UT, M 4.5 09:10 UT, M 4.2 09:15 UT, M 4.6 09:24 UT

No. California M 2.9 09:23 UT

Vanuatu M 5.2 09:24 UT

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O:  8FEB2025 16:12:35  41.2N   83.5E MB=4.3  EMSC   SOUTHERN XINJIANG, CHINA     

P:  7FEB2025 169512    42.0N   79.0E 4.0-5.5 AACAA  Kirgizstan/Xinjiang        

 

O:  8FEB2025 10:43:43  65.2N  145.9E MB=5.1  EMSC   SOUTHWESTERN SAKHA, RUSSIA   

 

INDONESIA AND PHILIPPINES

 

O:  8FEB2025 12:07:18   2.7S  139.6E ML=4.4  EMSC   NEAR N COAST OF PAPUA, INDONES

P:  7FEB2025 169396     3.0S  138.0E 4.0-5.4 AABAA  West Irian, PNG            

 

O:  8FEB2025 15:30:43   4.3N  126.6E MB=4.6  EMSC   KEPULAUAN TALAUD, INDONESIA  

P:  5FEB2025 169365     4.0N  128.0E 4.0-5.4 BABAA  Halmahera                  

 

O:  8FEB2025 12:13:58   4.8S  119.9E ML=4.0  EMSC   SULAWESI, INDONESIA          

P:  6FEB2025 169394     2.0S  123.0E 4.0-5.4 ACCAA  Sulawesi area              

 

O:  8FEB2025 12:00:18   5.2N  126.7E MB=4.4  EMSC   MINDANAO, PHILIPPINES        

P:  8FEB2025 169367     6.0N  124.0E 4.0-5.4 AACAA  Mindanao, Philippines      

 

O:  8FEB2025 17:12:29   5.7S  127.8E MB=4.1  EMSC   BANDA SEA                    

P:  9FEB2025 169377     4.0S  127.0E 4.0-5.4 ABAAA  Ceram area                 

 

O:  8FEB2025 09:47:53   6.2S  147.9E MB=4.4  EMSC   EASTERN NEW GUINEA REG., P.N.G

P:  8FEB2025 169384     6.0S  147.0E 4.0-5.5 AAAAA  New Ireland                

 

O:  8FEB2025 08:35:35   6.7N  126.7E ML=4.2  EMSC   MINDANAO, PHILIPPINES        

P:  7FEB2025 169365     8.0N  127.0E 4.0-5.6 ABAAA  Halmahera                  

 

 

CENTRAL AND SOUTH AMERICA

 

O:  8FEB2025 23:32:03  13.3N   88.0W ML=4.0  EMSC   EL SALVADOR                  

P:  7FEB2025 169402    14.0N   89.0W 3.5-5.1 AAAAA  Coast of Central America   

 

O:  8FEB2025 09:38:19  15.0N   92.4W ML=4.3  EMSC   CHIAPAS, MEXICO              

P:  4FEB2025 169405    14.0N   92.0W 3.5-5.5 BAAAA  Guatemala                  

 

O: 08FEB2025 06:52:17  17.0N   94.1W ML=4.0  EMSC   OAXACA, MEXICO

O:  8FEB2025 15:44:27  15.1N   94.5W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO 

O: 08FEB2025 22:53:13  15.1N   94.4W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO

O:  9FEB2025 02:45:21  16.2N   93.1W ML=4.1  EMSC   CHIAPAS, MEXICO              

P:  5FEB2025 169401    16.0N   94.0W 3.5-5.3 BAAAA  Chiapas, Mexico            

 

O:  9FEB2025 02:17:05  16.2S   73.7W MB=4.6  EMSC   NEAR COAST OF SOUTHERN PERU  

P:  6FEB2025 169571    15.0S   73.0W 4.0-5.5 BAAAA  Central Peru               

 

O:  9FEB2025 00:14:16  18.4N   66.2W MD=3.1  EMSC   PUERTO RICO                  

P:  8FEB2025 169424    20.0N   67.0W 3.0-4.6 ABAAA  Bahamas/No. Caribbean      

 

O:  8FEB2025 08:49:18  21.1S   67.2W ML=4.2  EMSC   POTOSI, BOLIVIA              

P:  4FEB2025 169585    22.0S   67.0W 4.0-5.9 BAAAA  Argentina                  

 

O:  8FEB2025 18:37:44  31.8S   70.3W ML=4.0  EMSC   SAN JUAN, ARGENTINA          

P:  8FEB2025 169599    31.0S   69.0W 4.0-5.8 AAAAA  Central Chile              

 

O:  8FEB2025 21:06:36  38.3S   72.5W ML=4.0  EMSC   ARAUCANIA, CHILE             

P:  5FEB2025 169601    36.0S   71.0W 4.0-5.9 BCAAA  Central Chile              

 

O: 08FEB2025 23:23:16  17.7N   82.4W Mw=7.6  EMSC   CAYMAN ISLANDS REGION

O: 09FEB2025 00:23:06  17.7N   82.8W mb=4.2  EMSC   CAYMAN ISLANDS REGION

O: 09FEB2025 00:16:33  17.8N   82.1W mb=4.3  EMSC   CAYMAN ISLANDS REGION

O:  8FEB2025 23:51:06  17.5N   83.2W MB=4.8  EMSC   NORTH OF HONDURAS            

P:  6FEB2025 169415    17.0N   85.0W 3.5-5.2 AABAA  Nicaragua                  

 

AFRICA AND EUROPE

 

O: 08FEB2025 08:16:39  36.6N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 08:56:16  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:00:41  36.6N   25.6E mb=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:07:19  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:10:07  36.6N   25.6E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:15:47  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 09:24:04  36.6N   25.6E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 16:18:41  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 16:29:58  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 16:51:46  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 17:15:13  36.6N   25.7E Mw=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 01:35:17  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 02:55:50  36.6N   25.6E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 04:47:32  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 09FEB2025 05:01:59  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O:  8FEB2025 08:36:05  36.5N   25.6E MB=4.8  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                  

 

O:  8FEB2025 10:35:58  36.1N    8.0W ML=2.3  EMSC   STRAIT OF GIBRALTAR          

P:  4FEB2025 169458    37.0N    6.0W 3.5-5.1 BABAA  Morocco/Spain              

P:  6FEB2025 169458    37.0N   11.0W 3.5-5.6 AABAA  Morocco/Spain              

 

SOUTHWEST PACIFIC

 

O:  8FEB2025 09:24:13  16.0S  167.9E MB=5.2  EMSC   VANUATU                      

P:  5FEB2025 169584    18.0S  168.0E 4.0-5.6 BBAAA  Vanuatu Islands            

 

O:  9FEB2025 03:38:58  23.6S  179.8W MB=4.7  EMSC   SOUTH OF FIJI ISLANDS         

O: 08FEB2025 10:05:36  24.0S  179.9W mb=4.4  EMSC   SOUTH OF FIJI ISLANDS

P:  8FEB2025 169597    23.0S  177.0W 4.0-5.5 AACAA  Tonga Islands              

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  8FEB2025 18:48:47  32.0S  138.7E MB=4.3  EMSC   SOUTH AUSTRALIA              

 

JAPAN AND KURIL ISLANDS

 

O:  8FEB2025 17:44:20  46.3N  153.9E MB=4.6  EMSC   KURIL ISLANDS                

P:  9FEB2025 169535    47.0N  153.0E 3.5-5.4 AAAAA  So. Kurils                 

 

O:  8FEB2025 20:31:53  48.7N  148.7E MB=4.4  EMSC   NORTHWEST OF KURIL ISLANDS   

P:  8FEB2025 169556    50.0N  148.0E 4.0-5.7 ABAAA  Sakhalin                   

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  8FEB2025 22:59:33  31.3N  115.8W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

P:  9FEB2025 169473    32.5N  115.7W 2.5-4.8 ABAAA  So. California             

 

O:  8FEB2025 22:43:11  31.6N  114.9W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO       

P:  7FEB2025 169471    30.2N  114.1W 2.0-4.1 AAAAA  SW U.S.A                   

 

O:  8FEB2025 12:25:52  33.0N  116.4W ML=2.3  EMSC   SOUTHERN CALIFORNIA          

P:  7FEB2025 169476    33.7N  116.1W 2.5-4.7 AAAAA  So. California             

 

O:  8FEB2025 16:56:32  37.0N  121.5W MD=2.3  EMSC   CENTRAL CALIFORNIA           

O: 08FEB2025 23:56:12  37.0N  121.1W MD=2.2  EMSC   CENTRAL CALIFORNIA

P:  7FEB2025 169447    37.3N  121.6W 2.5-4.7 AAAAA  Central California         

 

O:  8FEB2025 08:19:46  37.5N  118.9W MD=2.5  EMSC   CENTRAL CALIFORNIA           

P:  8FEB2025 169442    37.7N  118.5W 2.5-4.4 AAAAA  California/Nevada area     

 

O:  8FEB2025 20:48:50  38.8N  122.7W MD=2.6  EMSC   NORTHERN CALIFORNIA          

O: 08FEB2025 16:57:49  38.8N  122.9W MD=2.4  EMSC   NORTHERN CALIFORNIA

O: 08FEB2025 18:32:36  38.8N  122.7W MD=2.5  EMSC   NORTHERN CALIFORNIA

P: 10FEB2025 169448    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O:  8FEB2025 11:36:21  39.7N  123.6W MD=2.0  EMSC   NORTHERN CALIFORNIA          

P:  4FEB2025 169449    39.7N  123.7W 2.5-4.6 BAAAA  Central California         

 

O: 08FEB2025 10:18:25  40.3N  124.5W ML=2.7  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 09FEB2025 06:08:54  40.3N  124.7W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O:  8FEB2025 09:23:37  40.3N  124.5W MD=2.9  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  9FEB2025 169523    40.0N  123.0W 2.5-4.4 AAAAA  Northern California        

 

NEIC reported an earthquake of M 2.8 off the coast of Northern California  was felt with moderate intensity up to II-III in the area(s) of Northern California in Petrolia.

 

 

ALASKA

 

O:  8FEB2025 17:58:40  51.9N  173.2W ML=4.0  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P:  6FEB2025 169546    52.4N  174.3W 3.5-5.0 AAAAA  Andreanoff Isls, Aleutians 

 

O:  9FEB2025 00:09:53  52.2N  168.3W ML=3.7  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P:  5FEB2025 169549    53.7N  167.0W 3.5-5.2 BBAAA  Fox Islands, Aleutians     

 

O:  9FEB2025 00:07:10  65.0N  147.5W ML=3.0  EMSC   NORTHERN ALASKA               

P:  6FEB2025 169562    63.0N  144.6W 3.2-5.1 BBAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O:  9FEB2025 01:55:46  47.6N  121.8W ML=2.3  EMSC   WASHINGTON                   

P:  8FEB2025 169538    47.5N  121.8W 2.0-4.0 AAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 08FEB2025 11:49:20  31.7N  104.3W ML=2.0  EMSC   WESTERN TEXAS

O: 08FEB2025 23:53:54  31.7N  104.3W ML=2.1  EMSC   WESTERN TEXAS

O:  8FEB2025 23:49:21  31.6N  104.4W ML=2.2  EMSC   WESTERN TEXAS                

P:  7FEB2025 169472    32.5N  104.6W 2.0-4.1 AAAAA  SW U.S.A                   

 

O:  8FEB2025 23:29:59  44.9N  109.9W ML=2.8  EMSC   WYOMING                      

P: 10FEB2025 169541    45.6N  110.9W 2.0-4.3 AAAAA  Yellowstone/Wyoming         

 

EASTERN U.S./CANADA

 

O: 08FEB2025 12:59:03  35.1N   98.1W ML=2.5  EMSC   OKLAHOMA

O: 08FEB2025 19:55:22  35.1N   97.6W ML=2.5  EMSC   OKLAHOMA

O: 08FEB2025 21:38:38  35.1N   97.6W ML=2.4  EMSC   OKLAHOMA

O:  8FEB2025 10:07:51  35.1N   98.1W ML=2.2  EMSC   OKLAHOMA                     

P: 10FEB2025 169493    36.0N   97.0W 2.0-4.2 AAAAA  Southern Plains            

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

ANTIPODAL WEATHER AND SEISMIC CONNECTIONS REVIEWED

 

EARTHQUAKE SUMMARY FOR FEBRUARY 7, 2025

 

 

Readers should be aware that the “DISTANCES” section of this summary has been updated and is now reflecting the newest major earthquakes.

 

The M 5.8 South of Sumatra on February 7, 2025 and antipodal earthquakes in the

Caribbean, Guatemala and Mexico reminds readers of the existence of enhanced seismicity antipodal to major Tropical Cyclones. This summary has been studying this phenomena for decades, but what constitutes an "antipodal earthquake"?

 

Following a major disturbance on the earth's surface energy on the surface is focused by the spherical shape of the earth at the exact opposite point on  the earth's surface - the antipode. Such disturbances can include a major earthquake, a major meteorological storm or a meteor/cometary collision. The last of these can often leave "strange terrain" in the antipodal tectonics and terrain, but smaller events are more difficult to ascertain in the antipodal area. In general, antipodal seismicity occurs within several days of the main disturbance within several hundred km of the antipode. These events often occur at unusual epicenters off the normal fault zones with moderate magnitude. These can often be discerned prior to their occurrence.

 

As examples of antipodal earthquakes two are of note that occurred today. In the past several days a series of tropical cyclones has moved through the area north of Western Australia and south of Indonesia. The strongest active events today are Tropical Cyclone Taliah and Tropical Cyclone Vince. A snapshot of these cyclones places their location today at:

 

TROPICAL CYCLONE TALIAH (14S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    TALIAH   2025-02-08  00:00 UT  16.5S   97.0E  065 kts  South of Sumatra   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 65 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 17N 82W is off the coast of Central America and Honduras. It is likely that this area of Central America will see enhanced seismicity while Taliah is active.

 

 

TROPICAL CYCLONE VINCE (13S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    VINCE    2025-02-08  00:00 UT  19.8S   76.0E  160 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean northwest western Australia with winds up to 160 kts.  It is expected to track to the west and south over the next several days. The antipode at 19N 104W is in Colima,  Mexico. Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days.

 

As noted the exact antipodes of these two storms lie in the Caribbean Sea at 19N 104W and 17N 83W in Colima and the Cayman Islands respectively. These two areas saw unusual seismic, moderate seismic events today with parameters from EMSC as follow:

 

 

O:  8FEB2025 02:22:56  18.8N   81.8W MB=4.3  EMSC   CAYMAN ISLANDS REGION        

P:  6FEB2025 169415    17.0N   85.0W 3.5-5.2 ABCAA  Nicaragua                  

 

This earthquake was at the third node (120 degrees) from the M 6.8 in Kyushu of January 13, 2025 and may have been promoted by energy from that source. An M 4.2 today in Guatemala is also at this distance from Kyushu.

 

and

 

 

O: 07FEB2025 10:53:14  19.4N  104.2W ML=3.1  EMSC   JALISCO, MEXICO

O: 07FEB2025 08:04:40  18.2N  102.2W ML=3.8  EMSC   MICHOACAN, MEXICO

O: 07FEB2025 20:58:52  18.6N  103.9W ML=4.0  EMSC   OFFSHORE COLIMA, MEXICO

O:  7FEB2025 21:20:37  18.6N  103.9W ML=4.4  EMSC   OFFSHORE COLIMA, MEXICO      

P:  7FEB2025 169412    19.0N  103.0W 3.5-5.3 AAAAA  Michoacan, Mexico          

 

The last earthquake in the area offshore Colima within about 150 km of today's

M 4.4 was an M 4.8 on November 27, 2014 and prior to that an M 4.6 on July 30, 2013. So, clearly today's Colima event is unusual, being the strongest in this area in more than 10 years.

 

 

Likewise the last earthquake in the Cayman Islands with M>=4.3 (NEIC data) occurred more than 10 years ago - as an M 4.6 on October 16, 2014.

 

So these two events satisfy the criteria for being antipodal seismicity associated with major Tropical Cyclones - within 200 km of the exact antipode,  moderate but unusual magnitudes and unusual earthquakes which were well forecast and can be referred to as "antipodally triggered" (TCAS - Tropical Cyclone Antipodal Seismicity).

 

The strongest earthquake in the world today was an M 6.0 in the Fiji Islands.  It was not reported felt in this remote area. As it occurred near local solar noon it may have been promoted by tidal stresses which maximize near this hour. The last earthquake within about 200 km of this epicenter with M>=6.0 occurred on June 25, 2023 with M 6.0 - an aftershock of an M 7.2 of June 15, 2023. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 7.2 in southern Tonga. NEIC reported it was felt with maximum intensity IV in Tongatapu at Vaini and II-III in Tofoa-Koloua, Nuku'alofa, Niue and possibly in northern New Zealand. This event was probably triggered by a strong geomagnetic storm which maximized at the time of the earthquake in Tonga which GOES 18 reported maximized at about 18:00 UT. SWPC reported this is the strongest geomagnetic storm in the past month - since AP reached 35 on May 20, 2023. That storm was associated with the M 7.7 series in the Loyalty Islands of May 19-20, the last major earthquake in the world - an event located directly west of today's epicenter. An aftershock of M 6.0 followed later in the day.  This is the strongest earthquake in Tonga within about 250 km of this epicenter since an M  7.4 on May 23, 2013. At the time this summary noted:

 

 

 

"This is the strongest earthquake to hit this region of the Tonga/Fiji

Islands since an M 7.6 on March 19, 2009. The only other such event in the past 25 years was an M 7.8 on October 14, 1997. Local news reported the earthquake shook homes and rattled windows in Nuku'alofa, the capital city of Tonga. It shook many buildings in the capital but no damages or casualties were reported. No tsunami was reported or expected." (May 23, 2013, June 15, 2023)

 

Today's activity in Fiji is at 103-105 degrees from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from that source.

 

Forecast 169597 had expected today's earthquake within about 100 km was likely around February 8.

 

O:  7FEB2025 10:26:58  23.9S  176.1W MW=6.0  EMSC   SOUTH OF FIJI ISLANDS        

P:  8FEB2025 169597    23.0S  177.0W 4.0-5.5 AAAAA  Tonga Islands              

 

The strongest earthquake in the Dodecanese swarm today was an M 5.1. This event occurred several minutes after the start of Solar Flare 2160 which was given the following parameters by SWPC. It was likely promoted by SFE from that source.

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

2160       0712   0721      0737   M3.2      (February 7, 2025)   3.2E-02  

Dodecanese M 5.1 07:16 UT

Peru M 4.8 07:24 UT

 

 

This activity is located at 142 degrees from the Vanuatu M 7.4 of December 17, 2024 and at the seventh node (51.4 degrees) from the M 7.1 in Tibet of January 7 and may have been promoted by energy from that source.

 

Forecast 169439 had expected this activity in the Dodecanese Islands was

likely around February 6.

 

O: 07FEB2025 07:16:15  36.6N   25.6E mb=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 10:30:28  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 15:15:28  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 15:16:51  36.6N   25.7E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 01:52:05  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 03:08:35  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 03:11:25  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O:  7FEB2025 07:11:24  36.6N   25.7E MB=4.4  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

An earthquake of M 5.1 also occurred in Sicily, Italy today and was followed by a series of minor aftershocks. This earthquake in Sicily is the strongest within about 200 km of this epicenter since an M 5.2 on May 1, 2023. At the time this summary noted:

 

"An M 5.2 earthquake north of Sicily, Italy today was felt with intensity I in Bonifati, Calabria, Italy. The last earthquake within about 150 km of this epicenter with M>=5.2 in Italy occurred on October 31, 2022 with M 5.5 and before that on October 28, 2016 with M 5.8. Earthquakes in this area occur at intermediate to deep focal depths (250-500 km) and have little effect on surface features. The October 31, 2022 was, like today's event associated about a week after a solar eclipse on October 25 as noted in this summary at the time:

 

"A moderately strong earthquake occurred at intermediate depth in southern Italy today with M 5.5. It was reported by NEIC to have been felt with intensity III in Platania, Calabria, Italy. This event was likely promoted by tidal stresses which maximized at this longitude (15E) with the solar eclipse and new moon of October 25 as noted in previous issues of this summary…

 

 

Today's earthquake of M 5.1-5.5 in Italy is the strongest located within about 200 km  of this epicenter since an M 5.7-5.8 on October 26, 2006 and prior to that an M 5.9 on September 9, 1998." (October 31, 2022, May 1, 2023)

 

 

Like the event in the Dodecanese Islands today the earthquake in Sicily also occurred four minutes after a solar flare (#2280) began and was probably promoted by SFE associated with that flare. Data for this flare from SWPC follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

2280       1524   1534      1545   C2.5      (February 7, 2025)   2.9E-03  

Sicily M 5.0 15:29 UT

 

This activity is located at 148 degrees from the Vanuatu M 7.4 of December 17, 2024 and at the sixth node (60 degrees) from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from that source.

 

Forecast 169510 had expected enhanced seismicity in southern Italy was

likely around February 8, 2025.

 

O: 07FEB2025 15:19:09  38.9N   14.9E Mw=5.0  EMSC   SICILY, ITALY

O: 07FEB2025 15:19:09  38.9N   14.9E Mw=5.1  NEIC   SICILY, ITALY

O:  7FEB2025 16:26:19  38.5N   14.5E ML=3.4  EMSC   SICILY, ITALY                

P:  8FEB2025 169510    40.0N   17.0E 3.0-5.7 ABBAA  Italy                      

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

2130       0419   0431      0438   C3.2      (February 7, 2025)   2.7E-03  

 

Ionian Sea M 4.5 04:26 UT

Southwest of Sumatra M 5.8-6.2 04:31 UT

 

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O:  7FEB2025 16:46:57  23.2N  120.6E MB=4.8  EMSC   TAIWAN                       

P:  8FEB2025 169436    21.0N  120.0E 4.0-5.4 ACAAA  Taiwan                     

 

O:  7FEB2025 23:04:52  53.3N  160.4E MB=4.1  EMSC   NEAR EAST COAST OF KAMCHATKA 

P:  9FEB2025 169548    53.0N  160.0E 4.0-5.5 AAAAA  E. of Kamchatka            

 

O:  7FEB2025 18:09:11  55.3N  110.9E MB=3.8  EMSC   LAKE BAYKAL REGION, RUSSIA   

P:  6FEB2025 169557    56.0N  110.0E 3.0-4.6 AAAAA  So. Siberia                 

 

No significant (M>=5) or unusual earthquakes were reported in Asia today.

 

INDONESIA AND PHILIPPINES

 

O:  7FEB2025 18:32:18   2.0S  138.9E MW=5.0  EMSC   NEAR N COAST OF PAPUA, INDONES

P:  7FEB2025 169396     3.0S  138.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O:  8FEB2025 02:41:58   2.8S  141.6E MB=4.8  EMSC   NEAR N COAST OF NEW GUINEA, PN

P:  7FEB2025 169389     4.0S  142.0E 4.0-5.4 ABAAA  Papua New Guinea           

 

O: 07FEB2025 16:17:37   3.7N  127.9E mb=4.6  EMSC   KEPULAUAN TALAUD, INDONESIA

O:  7FEB2025 13:43:43   3.7N  127.8E ML=4.2  EMSC   KEPULAUAN TALAUD, INDONESIA  

P:  5FEB2025 169365     4.0N  128.0E 4.0-5.4 AAAAA  Halmahera                  

 

O:  8FEB2025 05:00:34   6.0S  103.3E MB=5.1  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P:  3FEB2025 169392     6.0S  104.0E 4.0-5.4 BAAAA  So. of Sumatera            

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 AABAA  So. of Sumatera            

 

O:  7FEB2025 07:30:39   7.2S  125.2E MB=4.8  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P:  8FEB2025 169374     7.0S  125.0E 4.0-5.7 AAAAA  Banda Sea                  

 

O:  8FEB2025 04:44:10   7.6N   93.7E MB=5.2  EMSC   NICOBAR ISLANDS, INDIA REGION

P:  6FEB2025 169370     8.0N   94.0E 4.0-5.4 AAAAA  Nicobar Islands            

 

O:  7FEB2025 08:54:05   7.7N  126.7E ML=4.4  EMSC   MINDANAO, PHILIPPINES        

P:  7FEB2025 169365     8.0N  127.0E 4.0-5.6 AAAAA  Halmahera                  

 

 

CENTRAL AND SOUTH AMERICA

 

O:  7FEB2025 13:17:32   1.3N   83.6W MB=4.7  EMSC   OFF COAST OF ECUADOR          

P:  4FEB2025 169372     2.0N   85.0W 4.0-5.8 BABAA  So. of Panama              

 

O:  7FEB2025 17:53:17  13.1N   89.1W ML=4.2  EMSC   OFFSHORE EL SALVADOR         

P:  7FEB2025 169402    14.0N   89.0W 3.5-5.1 AAAAA  Coast of Central America   

 

O:  7FEB2025 07:24:43  15.6S   70.0W MB=4.8  EMSC   SOUTHERN PERU                

P:  4FEB2025 169571    14.0S   71.0W 4.0-5.6 BBAAA  Central Peru               

 

O: 07FEB2025 23:15:34  17.3N   94.4W ML=4.2  EMSC   VERACRUZ, MEXICO

O:  8FEB2025 06:52:17  17.0N   94.1W ML=4.0  EMSC   OAXACA, MEXICO               

P:  5FEB2025 169418    15.0N   96.0W 3.5-5.1 BBBAA  Oaxaca, Mexico             

 

O: 07FEB2025 20:58:52  18.6N  103.9W ML=4.0  EMSC   OFFSHORE COLIMA, MEXICO

O:  7FEB2025 21:20:37  18.6N  103.9W ML=4.4  EMSC   OFFSHORE COLIMA, MEXICO      

P:  7FEB2025 169412    19.0N  103.0W 3.5-5.3 AAAAA  Michoacan, Mexico          

 

O:  8FEB2025 02:22:56  18.8N   81.8W MB=4.3  EMSC   CAYMAN ISLANDS REGION        

P:  6FEB2025 169415    17.0N   85.0W 3.5-5.2 ABCAA  Nicaragua                  

 

O:  8FEB2025 02:34:15  19.1N   67.8W MD=3.9  EMSC   DOMINICAN REPUBLIC REGION    

P:  7FEB2025 169420    19.0N   68.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O:  7FEB2025 10:00:37  21.1S   68.7W MB=4.3  EMSC   ANTOFAGASTA, CHILE           

P:  9FEB2025 169589    23.0S   69.0W 4.0-5.8 ABAAA  Coast No. Chile            

 

O:  7FEB2025 19:19:52  23.3N  110.1W ML=3.0  EMSC   BAJA CALIFORNIA SUR, MEXICO  

P: 26JAN2025 169158    24.0N  110.0W 3.5-5.1 CAAAA  Gulf of California         

 

O:  8FEB2025 03:16:17  29.4S   72.0W MB=4.2  EMSC   OFFSHORE COQUIMBO, CHILE     

P:  6FEB2025 169588    28.0S   71.0W 4.0-5.8 AAAAA  Coast Central Chile        

 

O: 07FEB2025 20:56:14  30.4S   69.4W ML=4.0  EMSC   SAN JUAN, ARGENTINA

P:  8FEB2025 169599    31.0S   69.0W 4.0-5.8 AAAAA  Central Chile              

 

 

AFRICA AND EUROPE

 

O: 07FEB2025 08:19:45   9.4N   40.0E mb=4.6  EMSC   ETHIOPIA

O:  7FEB2025 09:57:26   9.2N   40.2E MB=4.8  EMSC   ETHIOPIA                     

P:  9FEB2025 169404    10.0N   41.0E 3.5-4.9 AAAAA  Ethiopia                   

 

O: 07FEB2025 15:19:09  38.9N   14.9E Mw=5.0  EMSC   SICILY, ITALY

O: 07FEB2025 15:19:09  38.9N   14.9E Mw=5.1  NEIC   SICILY, ITALY

O:  7FEB2025 16:26:19  38.5N   14.5E ML=3.4  EMSC   SICILY, ITALY                

P:  8FEB2025 169510    40.0N   17.0E 3.0-5.7 ABBAA  Italy                      

 

 

O: 07FEB2025 07:16:15  36.6N   25.6E mb=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 10:30:28  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 15:15:28  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 15:16:51  36.6N   25.7E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 01:52:05  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 03:08:35  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 08FEB2025 03:11:25  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O:  7FEB2025 07:11:24  36.6N   25.7E MB=4.4  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

 

SOUTHWEST PACIFIC

 

O:  7FEB2025 07:03:11  15.6S  179.7W MB=4.9  EMSC   FIJI REGION                  

P:  9FEB2025 169583    19.0S  178.0W 4.0-5.4 ACBAA  Tonga Islands              

 

O:  7FEB2025 10:26:58  23.9S  176.1W MW=6.0  EMSC   SOUTH OF FIJI ISLANDS        

P:  8FEB2025 169597    23.0S  177.0W 4.0-5.5 AAAAA  Tonga Islands              

 

O:  7FEB2025 13:57:31  24.2S  179.7W MB=4.4  EMSC   SOUTH OF FIJI ISLANDS        

P:  6FEB2025 169597    25.0S  177.0W 4.0-5.6 AACAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 07FEB2025 23:18:09   4.1N   62.8E mb=4.5  EMSC   CARLSBERG RIDGE

O: 07FEB2025 23:58:51   4.1N   62.7E Mw=5.2  EMSC   CARLSBERG RIDGE

O: 07FEB2025 23:06:25   4.3N   62.8E mb=4.5  EMSC   CARLSBERG RIDGE

O:  7FEB2025 23:00:15   4.1N   62.7E MB=5.1  EMSC   CARLSBERG RIDGE              

P:  6FEB2025 169357     6.0N   61.0E 4.0-5.4 ABBAA  Carlsberg Ridge            

 

These epicenters are at 105 degrees from the M 7.4 in Vanuatu of December 17, 2024 and may have been promoted by energy from that source.

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  7FEB2025 07:07:22  37.7S  179.8E ML=4.1  EMSC   OFF E. COAST OF N. ISLAND, N.Z

P:  6FEB2025 169604    38.0S  179.0E 3.0-4.6 AAAAA  North Island, N.Z.         

 

O:  7FEB2025 14:47:15  45.6S  167.3E ML=3.9  EMSC   SOUTH ISLAND OF NEW ZEALAND  

P:  3FEB2025 169614    45.0S  168.0E 3.0-4.9 BAAAA  So. Island, N.Z.           

 

JAPAN AND KURIL ISLANDS

 

O: 08FEB2025 06:32:44  43.6N  147.8E mb=4.3  EMSC   KURIL ISLANDS

O:  7FEB2025 12:55:31  43.7N  147.9E MB=4.6  EMSC   KURIL ISLANDS                

P:  7FEB2025 169533    45.0N  147.0E 3.5-5.6 ABAAA  So. Kurils                 

 

O:  7FEB2025 21:34:18  44.6N  146.7E MB=4.0  EMSC   KURIL ISLANDS                 

P:  7FEB2025 169533    45.0N  147.0E 3.5-5.6 AAAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 07FEB2025 08:09:43  31.6N  114.5W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 07FEB2025 08:34:49  31.7N  115.1W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

 

 

O:  7FEB2025 08:45:46  31.4N  115.6W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO      

P:  9FEB2025 169473    32.5N  115.7W 2.5-4.8 ABAAA  So. California             

 

O:  7FEB2025 21:13:54  34.2N  117.5W ML=2.0  EMSC   GREATER LOS ANGELES AREA, CALI

P:  9FEB2025 169479    34.3N  117.5W 2.5-4.8 AAAAA  So. California             

 

O: 07FEB2025 20:35:52  37.1N  121.5W ML=3.2  EMSC   NORTHERN CALIFORNIA

O: 07FEB2025 20:45:27  37.1N  121.5W MD=2.0  EMSC   NORTHERN CALIFORNIA

O:  7FEB2025 20:55:36  36.5N  121.1W MD=2.0  EMSC   CENTRAL CALIFORNIA           

O:  7FEB2025 21:18:57  36.9N  121.4W MD=2.1  EMSC   CENTRAL CALIFORNIA           

P:  6FEB2025 169444    36.4N  121.0W 2.5-4.9 AAAAA  Central California         

 

NEIC reported an earthquake of M 3.3 south of San Francisco, California  was felt with moderate intensity up to IV in the area(s)  south of San Francisco, California  at San jose; III in Rohnert Park, Aptos, Gilroy, Morgan Hill, San Martin, Watsonville and Willits and II in Lancaster, Burlingame, Menlo Park, Redwood City, San Carlos, Walnut Creek, Capitola, Felton, Santa Cruz, Scotts Valley, Marina, Pacific Grove, Mountain View, Sunnyvale, San Francisco among others.

 

O:  8FEB2025 02:17:13  37.5N  118.9W MD=2.4  EMSC   CENTRAL CALIFORNIA           

P:  8FEB2025 169442    37.7N  118.5W 2.5-4.4 AAAAA  California/Nevada area     

 

O:  8FEB2025 05:54:34  38.4N  118.9W ML=2.0  EMSC   NEVADA                       

P:  8FEB2025 169443    38.7N  119.7W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 07FEB2025 22:06:40  39.2N  119.0W ML=2.5  EMSC   NEVADA

O: 07FEB2025 22:58:02  39.2N  119.0W ML=3.5  EMSC   NEVADA

O:  7FEB2025 22:00:49  39.2N  119.0W ML=2.4  EMSC   NEVADA                       

P:  8FEB2025 169443    38.7N  119.7W 2.5-4.8 AAAAA  California/Nevada area     

 

NEIC reported an earthquake of M 3.5 in Northern Nevada was felt with moderate intensity up to II-III in the area(s) of Northern Nevada at Silver Springs, Yerington, Glenbrook and Carson City.

 

O:  7FEB2025 12:08:33  41.9N  119.6W ML=2.4  EMSC   NEVADA                       

P:  3FEB2025 169503    41.3N  118.7W 2.5-4.6 BAAAA  California/Nevada area     

P:  9FEB2025 169503    40.2N  119.6W 2.5-4.6 ABAAA  California/Nevada area     

 

O: 07FEB2025 10:28:57  40.3N  124.7W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 07FEB2025 11:03:13  40.4N  125.0W ML=3.3  EMSC   OFFSHORE NORTHERN CALIFORNIA

O:  7FEB2025 11:34:15  41.9N  124.3W MD=2.4  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  4FEB2025 169449    39.7N  123.7W 2.5-4.6 BAAAA  Central California         

P:  7FEB2025 169525    43.1N  126.5W 3.0-4.5 AABBA  Off Coast of Oregon        

 

 

ALASKA

 

O:  7FEB2025 17:57:00  53.5N  165.7W ML=4.0  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P:  5FEB2025 169549    53.7N  167.0W 3.5-5.2 AAAAA  Fox Islands, Aleutians     

 

NEIC reported an earthquake of M 4.0 in Akutan, Alaska was felt with moderate intensity up to IV in the area(s) of Akutan, Alaska in Unalaska.

 

O:  7FEB2025 21:23:06  59.9N  152.4W ML=3.5  EMSC   SOUTHERN ALASKA              

O:  8FEB2025 03:02:31  60.5N  149.7W ML=3.0  EMSC   KENAI PENINSULA, ALASKA      

P:  8FEB2025 169561    60.8N  151.7W 3.2-5.3 AAAAA  Central Alaska             

 

NEIC reported an earthquake of M 3.5 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska in Anchorage and Homer.

 

NEIC reported an earthquake of M 3.0 in Kenai, Alaska was felt with moderate intensity up to II-III in the area(s) of Kenai, Alaska at Cooper Landing, Moose Pass and Sterling.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O:  7FEB2025 19:51:03  46.1N  122.5W ML=2.1  EMSC   WASHINGTON                   

P:  8FEB2025 169529    45.3N  121.7W 2.0-3.9 AAAAA  Oregon state, U.S.         

 

O:  7FEB2025 15:09:50  46.9N  124.0W ML=2.2  EMSC   GRAYS HARBOR, WASHINGTON     

P:  3FEB2025 169538    46.9N  122.0W 2.0-4.1 BABAA  Washington state, U.S.     

P:  8FEB2025 169538    47.5N  121.8W 2.0-4.0 AABAA  Washington state, U.S.     

 

O: 07FEB2025 05:14:18  48.7N  128.9W MB=3.5  ECAN OF PORT HARDY, BC  

O:  7FEB2025 00:05:30  48.8N  129.4W MB=3.5  ECAN OF PORT HARDY, BC              

P:  5FEB2025 169537    48.3N  128.5W 2.8-5.0 AAAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

O: 08FEB2025 00:45:34  31.7N  104.4W ML=2.0  EMSC   WESTERN TEXAS

O: 07FEB2025 19:35:19  32.4N  102.1W ML=2.1  EMSC   WESTERN TEXAS

O:  8FEB2025 03:19:09  31.5N  104.2W ML=2.1  EMSC   WESTERN TEXAS                

P:  7FEB2025 169472    32.5N  104.6W 2.0-4.1 AAAAA  SW U.S.A                   

 

O:  7FEB2025 17:26:43  44.2N  115.1W ML=2.0  EMSC   SOUTHERN IDAHO               

P:  7FEB2025 169516    44.5N  115.2W 2.0-4.3 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

No earthquakes of M>=1 were located in the Eastern U.S. or Canada today.

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

STRONG EARTHQUAKE SOUTH OF SUMATRA ANTIPODAL TO GUATEMALA

 

EARTHQUAKE SUMMARY FOR FEBRUARY 6, 2025

 

 

The strongest earthquake in the world today was an M 5.8 (NEIC, EMSC) to M 6.2 (BMG, GeoNet) south of Sumatra, Indonesia. It was not reported by NEIC to have been felt in this remote oceanic area. This earthquake at 9.8S 97.6E is nearly antipodal to the M 6.0 in Guatemala two days ago and is near the current eye of Tropical Cyclone Taliah which has been given in the previous issue of this summary as:

 

"TC    TALIAH   2025-02-06  00:00 UT  14.9S  103.8E  080 kts  north of western Australia   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 80 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 15N 77W is off the coast of Central America and Honduras. It is likely that this area of Central America will see enhanced seismicity while Taliah is active." (February 6, 2025)

 

The location of Taliah at the time of the M 5.8 south of Sumatra was directly south of that epicenter. It is likely that this earthquake was promoted by energy associated with TC Taliah.

 

TC    TALIAH   2025-02-07  00:00 UT  15.5S   99.0E  055 kts  South of Sumatra   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean south of Sumatra with winds up to 55 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 15N 80W is off the coast of Central America and Honduras. It is likely that this area of Central America will see enhanced seismicity while Taliah is active.

 

 

This event of M 5.8 south of Sumatra is the largest within about 300 km of this epicenter in at least 35 years. Other moderate earthquake have occurred in this area since 1990 as an M 5.4 on July 19, 2009 and an M 5.1 on September 25, 2006.

 

This summary had noted the antipodal nature of regional Tropical storms south of Indonesia and the Guatemala earthquake in the previous summary as:

 

 

"Today's event of M 5.7-6.0 ...  occurred near the antipode of Tropical Cyclone Vince (13S). In this and previous issues of this summary it had been anticipated a moderate to large earthquake could occur in Guatemala (the antipode of TC Vince) at this time as:

 

"TC    VINCE    2025-02-05  00:00 UT  17.8S   90.1E  125 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 125 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 90W is in Northern Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and could help promote a moderate to strong earthquake in that area in the next couple of days." (February 3-4, 2025)

 

Forecast 169392 had expected regionally enhanced seismicity south of Sumatra was likely around February 9, 2025.

 

O:  7FEB2025 04:31:56   9.7S   97.6E MW=5.8  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 ACCAA  So. of Sumatera            

 

The strongest earthquake in the U.S. or Canada today was an M 4.6 near Vancouver Island, British Columbia. It was reported lightly felt in the epicentral area. This is the strongest earthquake within about 200 km of today's epicenter since an M 4.9 on December 25, 2024. Both are apparently aftershocks of an M 6.5 on September 15, 2024. At the time this summary noted:

 

 

 

"The last earthquake of M>=5.9  within about 100 km of today's epicenters in Vancouver was an M 6.3 on December 25, 2019, part of a series of events in the area that started with two of M 6.0 on December 23, 2019. At the time this summary noted:

 

 

"Other factors which probably affected the timing of the activity in Vancouver, Canada probably included strong meteorological storms which dropped up to 12 inches on areas of the southeast U.S. and in Washington State and British Columbia and the geomagnetic storm  of December 19-20.

 

...

 

The last earthquake in the Vancouver Island area of M>=6 was an M  6.5 on July 4, 2019 with the regional seismic activation of early July, 2019. A swarm  hit southeast of today's events on October 22, 2018 (M 6.8, 6.5, 6.5) and in January,  2008 (M 6.4, 6.0 ..) and September 2013 (M 6.0, 6.0, 6.1)." (December 23, 2019, September 17, 2023, September 15, 2024)

 

Today's event in Vancouver coincided with a strong snowstorm in the northeastern U.S.

 

This activity as well as a series of events of M 3.5-4.0 in northern Baja California are located at the fourth node (90 degrees) from the M 7.2 in Vanuatu of December 17, 2024 and may have been promoted by energy from that source. The activity in Vancouver is also at the fifth node (72 degrees) from the M 6.8 in Kyushu, Japan of January 13, 2025 and may have been promoted from that source.

 

Forecast 169547 had expected today's event within about 15 km was likely around

February 4, 2025.

 

O: 06FEB2025 12:17:51  50.4N  130.2W ML=3.0  EMSC   VANCOUVER ISLAND, CANADA REGION

O: 06FEB2025 19:01:17  50.2N  130.2W MB=3.3  ECAN OF PORT HARDY, BC  

O: 06FEB2025 12:17:51  50.4N  130.2W MB=3.0  ECAN OF PORT HARDY, BC  

O: 06FEB2025 12:05:46  50.4N  130.2W MB=4.6  ECAN OF PORT HARDY, BC  

O:  6FEB2025 12:05:49  50.5N  129.9W MB=4.0  EMSC   VANCOUVER ISLAND, CANADA REGIO

P:  4FEB2025 169547    50.5N  130.4W 3.0-5.3 AAAAA  British Colombia           

 

An M 5.1 continued enhanced seismicity in the Dodecanese Islands today. This event was reported by EMSC to have been felt in Greece with moderate intensity at Thira, Agios Georgios, Tsoukalas, Naxos, Naousa, Ano Mera, Heraklion, Gazi, Vyronas, Athens, Chalandri, Marousi, Amarousio, Kallithea, Irakleio, Petroupoli and Acharnes. Forecast 169439 had expected continuing enhanced seismicity in the Dodecanese Islands in early February.

 

This activity is at 142 degrees from the M 7.4 in Vanuatu of December 17, 2024 and at the seventh node (51.4 degrees) from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from those sources. Other moderate earthquakes today at 140-144 degrees from Vanuatu included an M 2.5 in the North Sea, an M 4.5 in the Reykjanes Ridge, North Atlantic, and several unusual events in Greece outside the Dodecanese Islands.

 

O: 06FEB2025 14:09:58  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 14:47:51  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 17:58:50  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 18:03:40  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 18:16:45  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 19:34:50  36.6N   25.6E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 03:35:33  36.6N   25.6E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 04:56:39  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O:  6FEB2025 07:57:45  36.6N   25.7E MB=4.4  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O:  7FEB2025 04:45:21  39.3N   72.0E MB=4.3  EMSC   TAJIKISTAN                   

P:  9FEB2025 169454    38.0N   72.0E 3.8-5.2 ABAAA  Hindu Kush/Pakistan        

 

O:  6FEB2025 14:28:57  63.1N  145.7E MB=4.4  EMSC   MAGADANSKAYA OBLAST', RUSSIA 

 

No significant (M>=5) or unusual earthquakes were reported in Asia today.

 

INDONESIA AND PHILIPPINES

 

O:  6FEB2025 20:04:37   0.8N  100.1E ML=3.9  EMSC   NORTHERN SUMATRA, INDONESIA  

P:  6FEB2025 169371     1.0N  100.0E 4.0-5.4 AAAAA  So. Sumatera               

 

O: 06FEB2025 17:09:56   2.9S  141.6E Mw=5.0  EMSC   NEAR N COAST OF NEW GUINEA, PNG.

O:  6FEB2025 16:24:59   2.8S  141.6E MW=5.1  EMSC   NEAR N COAST OF NEW GUINEA, PN

O:  6FEB2025 16:24:59   2.8S  141.6E MW=5.6  BMG    NEAR N COAST OF NEW GUINEA, PN

P:  7FEB2025 169389     4.0S  142.0E 4.0-5.4 ABAAA  Papua New Guinea           

 

BMG  reported an earthquake of M 5.6 in New Guinea was felt with III intensity up to IV in the area(s) of New Guinea in Keerpm at Waris, Skanto, Arso, Mannem and in Jayapura at Muara Tami. Also felt with intensity II in Sarmi, Keerom, Pegunungan, Yahukimo. An aftershock of M 5.5 was felt in a similar area north of New Guinea.

 

This activity is at the sixth node (60 degrees) from the M 7.1 in Tibet of January 7, 2025

and may have been promoted by energy from that source.

 

O:  6FEB2025 13:16:28   4.4N  126.6E MB=5.4  EMSC   KEPULAUAN TALAUD, INDONESIA  

P:  5FEB2025 169365     4.0N  128.0E 4.0-5.4 AABAA  Halmahera                  

 

BMG reported an earthquake of M 5.5 in Kepulauan, Talaud Islands, Indonesia was felt with  intensity up to IV in the area(s) of Kepulauan, Talaud Islands, Indonesia at Lirung, Beo, Rainis, Essang, Nanusa, Kabaruan, Melonguane, Gemeh, Damau, Salibabu, Kalongan, Pulutan, with II in Siau.

 

O:  6FEB2025 18:00:38   4.5S  138.4E ML=4.1  EMSC   PAPUA, INDONESIA             

P:  7FEB2025 169396     3.0S  138.0E 4.0-5.4 ABAAA  West Irian, PNG            

 

O:  7FEB2025 05:43:03   6.1S  103.2E MB=4.7  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 ABBAA  So. of Sumatera            

 

O:  7FEB2025 04:31:56   9.7S   97.6E MW=5.8  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P:  9FEB2025 169392     5.0S  102.0E 4.0-5.4 ACCAA  So. of Sumatera            

 

O:  6FEB2025 16:01:32  11.3S  114.3E ML=4.2  EMSC   SOUTH OF BALI, INDONESIA     

P:  8FEB2025 169582    11.0S  115.0E 4.0-5.6 AAAAA  So. of Indonesia           

 

O:  6FEB2025 20:56:15  12.6N  124.5E ML=4.0  EMSC   SAMAR, PHILIPPINES           

P: 10FEB2025 169409    13.0N  124.0E 3.5-5.1 BAAAA  Luzon, Philippines         

 

 

CENTRAL AND SOUTH AMERICA

 

O:  6FEB2025 21:03:22   6.7N   73.1W MB=4.5  EMSC   NORTHERN COLOMBIA            

P: 10FEB2025 169362     7.0N   73.0W 4.0-5.9 BAAAA  Colombia                   

 

O:  7FEB2025 05:36:55  13.3N   88.2W MB=4.4  EMSC   EL SALVADOR                  

P:  7FEB2025 169402    14.0N   89.0W 3.5-5.1 AAAAA  Coast of Central America   

 

O:  6FEB2025 15:39:13  15.3N   94.7W ML=4.1  EMSC   OFF COAST OF OAXACA, MEXICO  

P:  5FEB2025 169401    16.0N   94.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O:  7FEB2025 06:28:11  15.6S   70.6W MB=4.3  EMSC   SOUTHERN PERU                

P:  6FEB2025 169571    15.0S   73.0W 4.0-5.5 AABAA  Central Peru               

 

O:  7FEB2025 02:22:54  16.2N   98.1W ML=4.0  EMSC   OAXACA, MEXICO               

P:  7FEB2025 169419    16.0N   97.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

P:  8FEB2025 169419    17.0N   99.0W 3.5-5.8 AAAAA  Oaxaca, Mexico             

 

O: 06FEB2025 20:45:26  18.1N   65.4W MD=3.0  EMSC   PUERTO RICO REGION

O:  7FEB2025 05:52:14  18.2N   66.1W MD=3.0  EMSC   PUERTO RICO                  

P:  8FEB2025 169424    20.0N   67.0W 3.0-4.6 ABAAA  Bahamas/No. Caribbean      

 

O:  7FEB2025 03:18:11  18.7N   68.5W ML=3.2  EMSC   DOMINICAN REPUBLIC           

P:  7FEB2025 169420    19.0N   68.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 06FEB2025 22:07:38  20.3S   69.1W ML=4.0  EMSC   TARAPACA, CHILE

O:  6FEB2025 10:19:04  20.1S   69.2W MB=4.3  EMSC   TARAPACA, CHILE              

P:  5FEB2025 169589    20.0S   70.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

O:  6FEB2025 08:34:28  23.2N  110.2W ML=3.1  EMSC   OFFSHORE BAJA CALIF. SUR, MEXI

P: 26JAN2025 169158    24.0N  110.0W 3.5-5.1 CAAAA  Gulf of California         

 

O:  6FEB2025 12:21:29  42.4S   74.2W MB=4.8  EMSC   ISLA CHILOE, LOS LAGOS, CHILE

P:  2FEB2025 169601    42.0S   75.0W 4.0-5.7 BAAAA  Central Chile              

 

NEIC reported an earthquake of M 4.8 in Los Lagos, Chile was felt with moderate intensity up to II-III in the area(s) of Los Lagos, Chile at Castro.

 

AFRICA AND EUROPE

 

O: 06FEB2025 14:09:58  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 14:47:51  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 17:58:50  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 18:03:40  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 18:16:45  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 19:34:50  36.6N   25.6E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 03:35:33  36.6N   25.6E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 07FEB2025 04:56:39  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O:  6FEB2025 07:57:45  36.6N   25.7E MB=4.4  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

O:  6FEB2025 18:47:28  52.1N    3.0E ML=2.9  EMSC   NORTH SEA                    

P: 27JAN2025 169279    52.0N    7.0E 3.0-4.8 CACAA  Netherlands/Belgium        

 

This activity is at 143 degrees from the M 7.4 in Vanuatu of December 17, 2024

and may have been promoted by energy from that source.

 

O:  7FEB2025 04:26:10  37.7N   17.3E ML=4.5  EMSC   IONIAN SEA                   

P:  8FEB2025 169510    40.0N   17.0E 3.0-5.7 ACAAA  Italy                      

 

NEIC reported an earthquake of M 4.5 in the Ionian Sea was felt with moderate intensity up to II-III in the area(s) of the Ionian Sea at Ioannina.

 

O:  7FEB2025 04:24:25  38.2N   21.6E MB=4.2  EMSC   GREECE                       

P:  7FEB2025 169460    38.0N   21.0E 3.0-4.7 AAAAA  No. Greece                 

 

EMSC reported an earthquake of M 4.2 in Greece was felt with moderate intensity up to II-III in the area(s) of Greece at Patras, Agrinio, Kampos, Kardamyli, Dytiki Mani.

 

This activity is at 144 degrees from the M 7.4 in Vanuatu of December 17, 2024

and may have been promoted by energy from that source.

 

SOUTHWEST PACIFIC

 

O:  7FEB2025 07:03:11  15.6S  179.7W MB=4.9  EMSC   FIJI REGION                  

P:  9FEB2025 169583    19.0S  178.0W 4.0-5.4 ACBAA  Tonga Islands              

 

O:  6FEB2025 18:16:30  16.6S  173.6W MB=4.5  EMSC   TONGA                        

P:  3FEB2025 169583    16.0S  174.0W 4.0-5.8 BAAAA  Tonga Islands              

 

No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.

 

OCEAN RIDGES

 

O:  6FEB2025 10:54:46  38.8S   93.5W MB=4.6  EMSC   WEST CHILE RISE              

P:  6FEB2025 169609    41.0S   91.0W 4.0-5.8 ACBAA  Chile Rise                 

 

O:  7FEB2025 03:06:51  52.1N   31.3W MB=4.6  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P:  8FEB2025 169551    52.0N   30.0W 4.0-5.8 AAAAA  North Mid-Atlantic Ridge   

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  7FEB2025 07:07:22  37.7S  179.8E ML=4.1  EMSC   OFF E. COAST OF N. ISLAND, N.Z

P:  6FEB2025 169604    38.0S  179.0E 3.0-4.6 AAAAA  North Island, N.Z.          

 

O:  7FEB2025 03:33:59  41.8S  174.1E ML=4.5  EMSC   COOK STRAIT, NEW ZEALAND     

O: 07FEB2025 03:33:59  41.8S  174.1E MB=4.5  GEONET Cook Strait, New Zealand

P:  9FEB2025 169612    41.0S  176.0E 3.0-4.9 AABAA  So. Island, N.Z.           

 

GeoNet reported this earthquake was felt with light to moderate intensity in the area southeast of Seddon, New Zealand and in southern North Island and northern South Island. 881 reports of felt events were made of which 494 reported weak and 329 with light intensity with 55 reports of moderate shaking and 3 with strong and 0 severe and 0 with extreme intensity came from the area.

 

JAPAN AND KURIL ISLANDS

 

O:  6FEB2025 17:33:57  41.1N  143.0E MB=4.2  EMSC   HOKKAIDO, JAPAN REGION       

P:  5FEB2025 169508    41.0N  144.0E 3.5-5.8 AAAAA  Hokkaido, Japan            

 

O:  7FEB2025 03:36:00  43.3N  142.8E MB=4.9  EMSC   HOKKAIDO, JAPAN REGION       

P:  7FEB2025 169508    44.0N  142.0E 3.5-5.8 AAAAA  Hokkaido, Japan            

 

NEIC reported an earthquake of M 4.9 in Hokkaido, Japan was felt with moderate intensity up to II-III in the area(s) of Hokkaido, Japan in Sapporo.

An M 4.2 foreshock was reported felt in Tomakomai, Hokkaido.

 

O:  7FEB2025 06:30:02  45.7N  151.5E MB=4.1  EMSC   KURIL ISLANDS                 

P:  3FEB2025 169535    45.0N  150.0E 3.5-5.4 BAAAA  So. Kurils                 

 

O:  6FEB2025 20:02:33  46.6N  153.5E MB=4.4  EMSC   KURIL ISLANDS                

P:  9FEB2025 169535    47.0N  153.0E 3.5-5.4 BAAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 06FEB2025 22:00:41  30.4N  114.4W ML=3.1  EMSC   GULF OF CALIFORNIA

O: 06FEB2025 22:13:45  31.0N  115.0W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 06FEB2025 10:49:08  31.3N  114.4W ML=3.7  EMSC   GULF OF CALIFORNIA

O: 06FEB2025 09:00:58  31.5N  114.5W ML=3.5  EMSC   GULF OF CALIFORNIA

O:  6FEB2025 10:54:23  31.7N  115.0W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO      

P:  3FEB2025 169471    31.6N  114.6W 2.0-4.3 BAAAA  SW U.S.A                   

P:  7FEB2025 169471    30.2N  114.1W 2.0-4.1 ABAAA  SW U.S.A                   

 

O:  7FEB2025 02:02:59  33.4N  116.3W ML=2.3  EMSC   SOUTHERN CALIFORNIA          

P:  7FEB2025 169476    33.7N  116.1W 2.5-4.7 AAAAA  So. California             

 

O:  6FEB2025 20:20:12  35.4N  120.6W MD=2.1  EMSC   CENTRAL CALIFORNIA           

P:  5FEB2025 169445    36.6N  120.7W 2.5-4.8 ABAAA  Central California         

 

O:  7FEB2025 05:10:51  36.6N  121.2W MD=2.2  EMSC   CENTRAL CALIFORNIA           

P:  6FEB2025 169444    36.4N  121.0W 2.5-4.9 AAAAA  Central California         

 

O:  7FEB2025 00:26:41  38.3N  122.4W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P:  2FEB2025 169448    38.5N  122.7W 2.5-4.6 BAAAA  Central California         

 

O:  7FEB2025 03:10:04  38.8N  123.0W MD=2.0  EMSC   NORTHERN CALIFORNIA          

P:  5FEB2025 169448    38.9N  122.8W 2.5-4.6 AAAAA  Central California         

 

O:  6FEB2025 10:49:42  40.4N  125.5W MD=2.8  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  6FEB2025 169524    40.3N  127.2W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

 

ALASKA

 

O:  6FEB2025 19:27:30  56.0N  155.3W ML=3.1  EMSC   SOUTH OF ALASKA              

P:  9FEB2025 169543    54.8N  158.7W 3.5-5.0 BBBAA  Alaska Peninsula           

 

O:  6FEB2025 19:56:52  60.6N  150.4W ML=3.4  EMSC   KENAI PENINSULA, ALASKA      

P:  8FEB2025 169561    60.8N  151.7W 3.2-5.3 AAAAA  Central Alaska             

 

NEIC reported an earthquake of M 3.0 in Kenai Peninsula, Alaska was felt with moderate intensity up to II-III in the area(s) of Kenai Peninsula, Alaska at Eagle River and Girdwood.

An earlier M 3.4 in the Kenai Peninsula, Alaska was reported by NEIC to have been felt with intensity III in Sterling and II in Anchorage, Eagle River and Girdwood.

 

O:  7FEB2025 06:52:52  60.7N  148.8W ML=3.0  EMSC   KENAI PENINSULA, ALASKA      

P:  4FEB2025 169562    60.9N  147.4W 3.2-5.4 BAAAA  Central Alaska             

 

O:  6FEB2025 12:24:00  58.7N  137.6W MB=2.6  ECAN OF JUNEAU, AK                  

P:  7FEB2025 169558    59.0N  137.0W 3.0-4.8 AAAAA  Southeast Alaska           

 

No events of M>=3 were located in Alaska today.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 06FEB2025 12:17:51  50.4N  130.2W ML=3.0  EMSC   VANCOUVER ISLAND, CANADA REGION

O: 06FEB2025 19:01:17  50.2N  130.2W MB=3.3  ECAN OF PORT HARDY, BC  

O: 06FEB2025 12:17:51  50.4N  130.2W MB=3.0  ECAN OF PORT HARDY, BC  

O: 06FEB2025 12:05:46  50.4N  130.2W MB=4.6  ECAN OF PORT HARDY, BC  

O:  6FEB2025 12:05:49  50.5N  129.9W MB=4.0  EMSC   VANCOUVER ISLAND, CANADA REGIO

P:  4FEB2025 169547    50.5N  130.4W 3.0-5.3 AAAAA  British Colombia           

 

O:  6FEB2025 17:37:22  43.6N  128.4W ML=3.1  EMSC   OFF COAST OF OREGON          

P:  9FEB2025 169526    44.1N  128.8W 3.0-4.8 BAAAA  Off Coast of Oregon        

 

 

ROCKY MOUNTAINS REGION

 

No earthquakes of M>=2 were located in the Rocky Mountain region today.

 

EASTERN U.S./CANADA

 

O:  6FEB2025 10:15:00  35.7N   97.4W ML=2.1  EMSC   OKLAHOMA                     

P:  6FEB2025 169492    35.0N   96.0W 2.0-4.3 AAAAA  Southern Plains             

 

O:  6FEB2025 01:01:35  47.5N   70.4W MB=0.3  ECAN OF BAIE-SAINT-PAUL, QC         

P:  4FEB2025 169514    47.0N   69.0W 2.0-4.2 AAAAA  Maine                      

P:  9FEB2025 169514    47.0N   70.0W 2.0-4.2 BAAAA  Maine                      

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

MODERATE EARTHQUAKES CONTINUE IN DODECANESE ISLANDS, GREECE

 

EARTHQUAKE SUMMARY FOR FEBRUARY 5, 2025

 

 

The swarm of earthquakes in the Santorini, Greece area of the Dodecanese Islands

appeared on the decline today. Still an M 5.1 occurred today along with a number

of other moderate sized events. Today's event of M 5.1 was reported by NEIC to have been felt with intensity up to VII in Kiklades, Greece at Kamarion and VI in Naousa with VI also at Ano Mera Nisia, Aigaiou, Kriti. Intensity III was felt up to 200 km from the epicenter in Greece at Kalivai, Hania, Iraklioin, Emborion and Andros Nisia Aigaiou Kriti. EMSC reported strong shaking in Greece at Naxos kai Mikres Kyklades, Thira, Agia Anna, Tsoukalas, Agios Georgios, Ano Mera, Mykonos, Tinos, Patmos among other communities. Landslides have been reported with this earthquake swarm in this hilly and mountainous terrain and are among the major hazards in the area at this time.

 

This event of M 5.1 in the Dodecanese Islands may have been promoted by SFE associated with flare 1720 as it occurred at the peak output of that flare. Data from SWPC for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

1720       1902   1908      1914   C1.9      (February 5, 2025)   8.2E-04  

Dodecanese M 5.1 19:09 UT, M 4/4 19:01 UT

Greenland M 4.0 19:28 UT

 

These earthquakes in the Dodecanese Islands are located at the seventh node

(51.4 degrees) from the M 7.1 in Tibet of January 7, 2025 and were probably promoted by energy from that source.

 

Following is a partial listing of earthquakes in the Dodecanese Swarm today with M>=4 magnitude. Hundreds of smaller events were also registered.

 

Forecast 169439 had expected today's activity in the Dodecanese Islands was likely around February 6, 2025.

 

O: 05FEB2025 11:33:47  36.6N   25.6E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:52:34  36.6N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 19:00:48  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 22:57:46  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 22:59:24  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 23:16:41  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:02:11  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:27:29  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:45:54  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:45:54  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:48:37  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:52:42  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:54:22  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:56:59  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:00:05  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:05:29  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:17:55  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:19:16  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:23:09  36.6N   25.7E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:28:56  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:33:52  36.6N   25.6E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:36:41  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 04:08:18  36.6N   25.6E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 04:26:25  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 05:51:47  36.6N   25.6E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 06:21:57  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:08:58  36.7N   25.7E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:10:25  36.7N   25.7E Mw=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:17:28  36.7N   25.7E ML=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:25:36  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 12:09:35  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 12:14:29  36.7N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 13:09:09  36.7N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 14:49:34  36.7N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 15:58:47  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 16:18:42  36.7N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 17:47:27  36.7N   25.7E Mw=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 19:09:38  36.7N   25.6E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 22:33:28  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:24:24  36.7N   25.8E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O:  5FEB2025 10:35:09  36.6N   25.7E MB=4.9  EMSC   DODECANESE ISLANDS, GREECE    

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

 

The strongest earthquake felt in the U.S. or Canada today occurred as an M 4.6-4.7 south of Alaska near Perryville. NEIC reported it was felt with maximum intensity IV in Anchorage, Alaska; III in Chugiak and II in Chignik Lagoon and Eagle River, Alaska. NEIC reported this earthquake of M 4.3 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska at Anchorage, Elmendorf AFB, Fort Richardson, Indian, Chugiak, Girdwood, Kenai, Moose Pass, Wasilla, Skwentna, Valdez and II in Anchor Point, Kasilof, Palmer, Soldotna, Tyonek, Willow and Haines. EMSC reported strong and long shaking in Anchorage, Wasilla, Eagle River, with lighter intensity at Palmer, Alaska.

The last earthquake within about 200 km of this epicenter in Southern Alaska  of M>=4.6 occurred on September 1, 2024 with M 4.6.

 

Forecast 169561 had expected today's event within about 100 km was likely

around February 8.

 

O: 05FEB2025 08:07:09  61.3N  150.7W mb=4.6  EMSC   SOUTHERN ALASKA

O:  6FEB2025 00:18:01  61.0N  150.4W ML=3.0  EMSC   SOUTHERN ALASKA              

P:  8FEB2025 169561    60.8N  151.7W 3.2-5.3 AAAAA  Central Alaska             

 

The strongest unfelt earthquake in the U.S. or Canada today was an M 4.9 in the area of the Alaska Peninsula. This is the strongest earthquake within about 200 km of this epicenter in the Alaska Peninsula since an M 5.1 on August 26, 2024 - an aftershock of an M 5.6 on August 1, 2024. At the time this summary noted:

 

 

"The strongest earthquake in the world (and in the U.S. or Canada) today was an M 5.6 in the Alaska Peninsula near Unimak Island, Alaska. NEIC reported it was felt with intensity up to IV at Sand Point, Alaska. The last earthquake within about 200 km of this epicenter in Alaska with M>=5.6 was an M 5.6 one year ago on August 3, 2023 - an aftershock of an M 7.2 on July 16, 2023. At the time this summary noted:

 

"The strongest earthquake in the world, the U.S. or Canada today was an M 5.6 in the Unimak Island area of Alaska. NEIC reported it was felt with intensity IV in Sand Point, King Cove and II-III in False Pass, Chignik Lagoon, Alaska. This is the strongest aftershock to date of the M 7.2-7.4 of July 16, 2023 in the Alaska Peninsula about 50 km east of today's epicenter. It is the second largest earthquake in this area since an M 6.1 on July 28 and July 29, 2020. In the past

15 years many of the strongest earthquakes in this region have occurred in mid- to late-July and early August, perhaps indicating a seasonal triggering component. All events in the region with M>=6 since 2008 have occurred in late July including an M 6.1 on July 16, 2011; an M 6.0 on July 19, 2018; an M 6.1 on July 28, 2020 and an M 7.2 on July 16, 2023." (August 3, 2023, August 1, 2024)

 

 

Forecast 169543 had expected this earthquake was likely within about 25 km around February 9, 2025.

 

O:  5FEB2025 08:15:44  54.9N  158.3W MB=4.9  EMSC   SOUTH OF ALASKA              

P:  9FEB2025 169543    54.8N  158.7W 3.5-5.0 BAAAA  Alaska Peninsula           

 

NEIC reported earthquakes of M 4.6 in Coquimbo, and Valparaiso, Chile were felt with moderate intensity up to II-III in the area(s) of Coquimbo, Chile at La Serena. EMSC reported strong shaking in Coquimbo, Chile. These are aftershocks of the M 5.8-6.0 in Coquimbo in early February.

 

These earthquake, like the M 6.0 in Guatemala today occurred at 103 degrees from Vanuatu of December 17, 2024 (M 7.4) and were probably promoted by energy from that source.

 

These events had been anticipated in forecasts 169599 and 169600 to occur within about 100 km of today's epicenters around February 3 or 4.

 

O:  6FEB2025 04:15:13  30.0S   71.4W MW=4.5  EMSC   COQUIMBO, CHILE              

P:  3FEB2025 169599    30.0S   70.0W 4.0-6.5 BABAA  Coast Central Chile        

 

O:  5FEB2025 12:37:01  33.8S   72.1W MW=4.5  EMSC   OFFSHORE VALPARAISO, CHILE   

P:  4FEB2025 169600    33.0S   72.0W 4.0-5.8 AAAAA  Central Chile              

 

A strong earthquake of M 5.7 (NEIC) to M 6.0 (INET) occurred today in the region

of Guatemala. NEIC reported slight damage and intensity VI in Guatemala in Quezaltenango at Genova and V in Almolonga, Parramos, Chimaltenango, La Gomera, Escuintla, Guatemala City, Villa Nueva, San Lucas Sacatepequez, Santa Lucia Milpas, Tapachula, Chiapas, IV throughout Guatemala within about 150 km of the epicenter and III throughout the remainder of Guatemala. EMSC reported very strong shaking in Guatemala at El Tejar, Solano, Guatemala City, San Cristobal, Boca del Monte, Colonia Valles de Vista Hermosa, and in San Salvador, El Salvador. A major earthquake hit Guatemala with great damage and  loss of life on February 4, 1976. It was reported in the previous issue of this summary in the "HISTORY" section as:

 

" 2  4  9  1 43 1976  15.324  -89.101   5 7.5   Guatemala

 

This was a strike-slip rupture which was felt over an area of at least 100,000 sq. km. on the Motagua fault. The quake killed at least 22,700 and injured more than 75,000. Losses were estimated at $1.1 billion U.S. dollars. Ground breakage occurred over 240 km, the longest rupture in America since the San Francisco quake of 1906. Maximum slippage occurred north of Guatemala City. Landslides were extensive and blocked railroads and communications in the Guatemala highlands. The quake was felt with maximum intensity IX in Mixco and sections of Guatemala City and Gualan. Many communities and towns were completely destroyed in an area around the fault of 1700 sq. km. Buildings near the fault suffered little damage, but those at a distance from the fault were completely destroyed. Many modern "earthquake resistant" structures collapsed. All houses in the towns of San Pedro Sacatepequez, El Jicaro, Sumpango, Tecpan dna Gualan were destroyed." (February 4, 2025)

 

Much of the following is repeated from the previous issue of this summary.

 

The last earthquake located in Guatemala within about 200 km of this epicenter with M>=5.7 was an M 5.8 on October 25, 2024. The last within this area of M>=6 was an M 6.2 on February 16, 2022. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.2 in Southern Guatemala. NEIC reported it was felt with intensity VIII in Escuintla, Guatemala and VII  in Mazatenango, Suchitepequez and V in San Francisco Zapotitlan with IV in San Pedro la Laguna, Acatenango, Chimaltenango, San Juan la Laguna, Solola, La Gomera, Escuintla and Atitlan, Solola; V in Retalhuleu. It was also felt with intensity IV in El Salvador, Chiapas, Mexico, Oaxaca, Mexico, Honduras, and Panama. The mainshock in Guatemala was preceded by a moderate foreshock to the east in El Salvador. NEIC reported this event was felt with intensity IV in El Salvador in Delgado and Llopango, San Salvador and III in Antiguo Cuscatlan, San Marcos and La Libertad. This activity was likely promoted by high tidal stresses with the full moon

 

...

 

 

Today's event is the strongest earthquake within about 150 km of today's epicenter since an M 6.6 on February 1, 2019 and prior to that an M 6.8 on June 22, 2017. Forecast 141111 had expected today's enhanced seismicity was likely within  about 100 km around February 17. This activity is at 142-146 degrees from the strong earthquakes in Indonesia of late December and may have been promoted by energy from those sources.  This epicenter is also at the fifth node

(72 degrees) from the M 6.8 in the Fox Islands, Aleutians of January 11 and may have been promoted by energy from that source." (February 15-16, 2022)

 

Today's event of M 5.7-6.0 occurred near local solar midnight and may have been promoted by tidal stresses which maximize near this hour. It occurred near the antipode of Tropical Cyclone Vince (13S). In this and previous issues of this summary it had been anticipated a moderate to large earthquake could occur in Guatemala (the antipode of TC Vince) at this time as:

 

"TC    VINCE    2025-02-05  00:00 UT  17.8S   90.1E  125 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 125 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 90W is in Northern Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and could help promote a moderate to strong earthquake in that area in the next couple of days." (February 3-4, 2025)

 

This earthquake also follows a volcanic eruption near this epicenter on January 27, 2025. At the time this summary noted this as:

 

"A strong eruption of Santiaguito Volcano in Guatemala occurred on January 27, 2025. The eruption included red hot rocks and plumes of smoke and ash rising nearly 1200 meters. Santiaguito is a part of the Santa Maria Volcano complex near Quetzaltenango. A major eruption in the area occurred in 1902 killing more than 5000 people." (February 1, 2025)

 

This earthquake in Guatemala was closely associated with a Solar flare and occurred near the beginning of that event. SWPC data for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

1510       0709   0715      0723   C2.6      (February 5, 2025)   1.0E-03  

Vanuatu M 4.8 07:17 UT

Guatemala M 5.6 07:01 UT

 

 

The local seismic network (INETER - Instituto Nicaraguense de Estudios Territoriales and CATAC - Centro de Asesoramiento de Tsunamis en America Central) provided the following data for this earthquake in Guatemala:

 

This epicenter is at 103 degrees from the M 7.4 in Vanuatu of December 17, 2024 and was likely promoted by energy from that source. Other areas which saw moderate earthquakes at this distance from Vanuatu included the area of Coquimbo, Chile and events in Oklahoma and southern Texas.

 

Forecast 169405 had expected today's activity in Guatemala was likely around

February 4-8, 2025.

 

O: 05FEB2025 07:01:19  13.9N   91.6W ML=6.0  INET   Southern Guatemala   

O: 05FEB2025 07:01:19  13.8N   91.7W ML=5.7  UNAM   Southern Guatemala   

O: 05FEB2025 05:45:03  13.9N   89,8W ML=3.9  INET   Southern Guatemala   

O: 05FEB2025 22:39:38  14.0N   91.5W mb=4.1  EMSC   OFFSHORE GUATEMALA

O:  5FEB2025 07:01:18  13.8N   91.6W MW=5.6  EMSC   OFFSHORE GUATEMALA           

P:  4FEB2025 169405    14.0N   92.0W 3.5-5.5 AAAAA  Guatemala                  

P:  8FEB2025 169405    13.0N   91.0W 3.5-5.2 BAAAA  Guatemala                  

 

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O:  5FEB2025 23:38:38  23.2N  120.6E ML=4.1  EMSC   TAIWAN                       

P:  8FEB2025 169436    21.0N  120.0E 4.0-5.4 BCAAA  Taiwan                     

 

O: 05FEB2025 20:24:40  28.1N   52.5E mb=4.2  EMSC   SOUTHERN IRAN

O:  5FEB2025 07:49:57  28.0N   52.3E MB=4.2  EMSC   SOUTHERN IRAN                

P:  4FEB2025 169435    29.0N   51.0E 3.5-5.1 AAAAA  So. Iran/Persian Gulf      

P:  9FEB2025 169435    28.0N   52.0E 3.5-5.0 BAAAA  So. Iran/Persian Gulf      

 

O:  6FEB2025 00:48:02  28.4N   87.6E ML=4.1  EMSC   WESTERN XIZANG               

P:  3FEB2025 169500    28.0N   87.0E 3.8-5.3 BAAAA  Xizang                     

 

O:  6FEB2025 03:23:00  53.6N  161.5E MB=4.6  EMSC   OFF EAST COAST OF KAMCHATKA  

P:  4FEB2025 169548    54.0N  160.0E 4.0-5.4 AAAAA  E. of Kamchatka            

 

INDONESIA AND PHILIPPINES

 

O:  5FEB2025 13:09:56   1.8S  129.0E ML=4.3  EMSC   PAPUA REGION, INDONESIA      

P:  2FEB2025 169377     1.0S  127.0E 4.0-5.4 BABAA  Ceram area                 

 

O:  5FEB2025 12:50:23   2.5S  141.4E MB=4.8  EMSC   NEAR N COAST OF NEW GUINEA, PN

P:  7FEB2025 169389     4.0S  142.0E 4.0-5.4 ABAAA  Papua New Guinea           

 

O:  5FEB2025 11:11:31   4.9N  124.1E ML=4.3  EMSC   CELEBES SEA                  

P:  8FEB2025 169367     6.0N  124.0E 4.0-5.4 BBAAA  Mindanao, Philippines      

 

O:  5FEB2025 16:02:53   6.1S  130.7E ML=4.4  EMSC   BANDA SEA                    

P:  5FEB2025 169374     8.0S  129.0E 4.0-5.7 ABBAA  Banda Sea                  

 

O:  5FEB2025 08:03:34   7.6N  127.2E MB=4.7  EMSC   PHILIPPINE ISLANDS REGION    

P:  7FEB2025 169365     8.0N  127.0E 4.0-5.6 AAAAA  Halmahera                  

 

O:  5FEB2025 21:18:59   7.9S  127.3E MB=4.8  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P:  5FEB2025 169374     8.0S  129.0E 4.0-5.7 AABAA  Banda Sea                  

 

O:  5FEB2025 14:18:05   9.7S  119.6E MB=4.6  EMSC   SUMBA REGION, INDONESIA      

P:  5FEB2025 169395     8.0S  118.0E 4.0-5.4 ABBAA  Sumbawa Island area        

 

O:  5FEB2025 18:40:52  11.5S  117.2E MB=4.7  EMSC   SOUTH OF SUMBAWA, INDONESIA  

P:  8FEB2025 169582    11.0S  115.0E 4.0-5.6 BABAA  So. of Indonesia           

 

BMG reported an earthquake of M 5.5 in Kepulauan, Talaud Islands, Indonesia was felt with  intensity up to IV in the area(s) of Kepulauan, Talaud Islands, Indonesia at Lirung, Beo, Rainis, Essang, Nanusa, Kabaruan, Melonguane, Gemeh, Damau, Salibabu, Kalongan, Pulutan, with II in Siau.

 

BMG  reported an earthquake of M 5.6 in New Guinea was felt with III intensity up to IV in the area(s) of New Guinea in Keerpm at Waris, Skanto, Arso, Mannem and in Jayapura at Muara Tami. Also felt with intensity II in Sarmi, Keerom, Pegunungan, Yahukimo. An aftershock of M 5.5 was felt in a similar area north of New Guinea.

 

 

No significant (M>=5) or unusual earthquakes were reported in Indonesia or the Philippines today.

 

CENTRAL AND SOUTH AMERICA

 

O: 05FEB2025 22:39:38  14.0N   91.5W mb=4.1  EMSC   OFFSHORE GUATEMALA

O:  5FEB2025 07:01:18  13.8N   91.6W MW=5.6  EMSC   OFFSHORE GUATEMALA           

P:  4FEB2025 169405    14.0N   92.0W 3.5-5.5 AAAAA  Guatemala                  

P:  8FEB2025 169405    13.0N   91.0W 3.5-5.2 BAAAA  Guatemala                  

 

O:  5FEB2025 08:21:35   1.8S   78.1W MB=4.9  EMSC   ECUADOR                      

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 AAAAA  Ecuador                    

 

NEIC reported an earthquake of M 4.9 in Ecuador was felt with moderate intensity up to III in the area(s) of Ecuador  at Cuenca Azuay and Santa Lucia, Guayas and II in Loja, Ecuador.

EMSC reported short but strong shaking in Ecuador at Samborondon, Loja and Guayaquil.

 

O:  6FEB2025 12:21     42.5S   74.3W MB=4.6  CSN    LOS LAGOS, CHILE             

 

CSN (GUC) reported this earthquake was felt with intensity V in  Los Lagos at Castro, Puqueldon; IV in Quemchi, Ancud, Dalcahue, Quellon and III in Chaiten, Chile.

 

O:  5FEB2025 09:09:58   4.1S   80.9W ML=4.1  EMSC   PERU-ECUADOR BORDER REGION   

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 ACCAA  Ecuador                    

 

O:  5FEB2025 22:35:30   9.2N   83.9W ML=4.0  EMSC   COSTA RICA                   

P:  6FEB2025 169400    10.0N   84.0W 3.5-5.2 AAAAA  Caribbean Sea              

 

O:  5FEB2025 11:01:10  14.3N   93.3W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P:  4FEB2025 169405    14.0N   92.0W 3.5-5.5 AAAAA  Guatemala                  

 

O:  5FEB2025 21:29:57  16.8N   95.0W ML=4.0  EMSC   OAXACA, MEXICO               

P:  5FEB2025 169401    16.0N   94.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O:  5FEB2025 10:49:19  17.5S   63.9W ML=4.2  EMSC   SANTA CRUZ, BOLIVIA          

P:  8FEB2025 169581    18.0S   69.0W 4.0-5.6 BACAA  So. Peru/Bolivia           

 

O:  5FEB2025 07:25:38  18.8N   66.4W MD=3.0  EMSC   PUERTO RICO REGION           

P:  5FEB2025 169420    18.0N   68.0W 3.4-5.1 AABAA  Puerto Rico                

 

O:  5FEB2025 13:53:28  19.1N   68.0W MD=3.7  EMSC   DOMINICAN REPUBLIC REGION    

P:  7FEB2025 169420    19.0N   68.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 05FEB2025 19:50:39  19.9N   65.6W MD=3.6  EMSC   PUERTO RICO REGION

O:  5FEB2025 15:47:27  19.9N   65.6W MD=3.8  EMSC   PUERTO RICO REGION           

P:  6FEB2025 169408    19.0N   64.0W 3.0-5.4 AABAA  Leeward Islands             

 

O: 05FEB2025 09:08:12  20.3S   69.2W mb=4.9  EMSC   TARAPACA, CHILE

O:  5FEB2025 23:08:05  22.2S   68.6W MB=4.3  EMSC   ANTOFAGASTA, CHILE           

P:  4FEB2025 169585    22.0S   67.0W 4.0-5.9 AABAA  Argentina                  

 

EMSC reported an earthquake of M 4.9 in Northern Chile was felt with  intensity up to IV in the area(s) of Northern Chile in Tarapaca at Alto Hospicio.

 

O:  5FEB2025 10:50:04  24.3S   67.3W MB=4.0  EMSC   SALTA, ARGENTINA             

P:  9FEB2025 169589    23.0S   69.0W 4.0-5.8 BBBAA  Coast No. Chile            

 

O:  6FEB2025 04:22:13  26.5N  111.1W ML=4.1  EMSC   GULF OF CALIFORNIA           

P: 26JAN2025 169158    24.0N  110.0W 3.5-5.1 CCAAA  Gulf of California         

 

O:  6FEB2025 04:15:13  30.0S   71.4W MW=4.5  EMSC   COQUIMBO, CHILE              

P:  3FEB2025 169599    30.0S   70.0W 4.0-6.5 BABAA  Coast Central Chile        

 

O:  5FEB2025 12:37:01  33.8S   72.1W MW=4.5  EMSC   OFFSHORE VALPARAISO, CHILE   

P:  4FEB2025 169600    33.0S   72.0W 4.0-5.8 AAAAA  Central Chile              

 

 

AFRICA AND EUROPE

 

O: 05FEB2025 11:33:47  36.6N   25.6E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:52:34  36.6N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 19:00:48  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 22:57:46  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 22:59:24  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 23:16:41  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:02:11  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:27:29  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:45:54  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:45:54  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:48:37  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:52:42  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:54:22  36.6N   25.7E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:56:59  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:00:05  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:05:29  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:17:55  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:19:16  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:23:09  36.6N   25.7E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:28:56  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:33:52  36.6N   25.6E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 03:36:41  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 04:08:18  36.6N   25.6E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 04:26:25  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 05:51:47  36.6N   25.6E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 06:21:57  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:08:58  36.7N   25.7E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:10:25  36.7N   25.7E Mw=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:17:28  36.7N   25.7E ML=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 11:25:36  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 12:09:35  36.7N   25.8E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 12:14:29  36.7N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 13:09:09  36.7N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 14:49:34  36.7N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 15:58:47  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 16:18:42  36.7N   25.8E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 17:47:27  36.7N   25.7E Mw=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 19:09:38  36.7N   25.6E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 22:33:28  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 06FEB2025 02:24:24  36.7N   25.8E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O:  5FEB2025 10:35:09  36.6N   25.7E MB=4.9  EMSC   DODECANESE ISLANDS, GREECE   

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

O:  5FEB2025 19:28:41  73.8N    9.3E ML=4.0  EMSC   GREENLAND SEA                

P:  2FEB2025 169570    74.0N   14.0E 3.0-4.6 BAAAA  Norway                     

 

O:  6FEB2025 03:32:40  37.5N   24.7E ML=4.2  EMSC   SOUTHERN GREECE              

P:  6FEB2025 169439    36.0N   25.0E 3.0-5.5 ABAAA  Aegean Sea                 

 

SOUTHWEST PACIFIC

 

O:  5FEB2025 20:15:09  19.1S  172.6W MB=5.0  EMSC   TONGA REGION                 

P:  4FEB2025 169596    21.0S  175.0W 4.0-5.6 ABBAA  Tonga Islands              

 

O:  5FEB2025 07:17:42  19.2S  168.7E MB=4.8  EMSC   VANUATU                      

P:  5FEB2025 169584    18.0S  168.0E 4.0-5.6 ABAAA  Vanuatu Islands            

 

OCEAN RIDGES

 

O:  5FEB2025 22:53:38  39.0S   92.6W MB=4.6  EMSC   SOUTHEAST OF EASTER ISLAND   

P:  6FEB2025 169609    41.0S   91.0W 4.0-5.8 ABAAA  Chile Rise                 

 

This epicenter is at 144 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025 and at 103 degrees from the M 7.1 in Tibet of

January 7, 2025 and were probably promoted by energy from that source.

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  5FEB2025 14:20:31  45.1S  167.4E ML=4.4  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 05FEB2025 14:20:31  45.1S  167.4E MB=4.5  GEONET South Island, New Zealand

P:  3FEB2025 169614    45.0S  168.0E 3.0-4.9 AAAAA  So. Island, N.Z.           

 

GEONET reported this earthquake was felt with weak intensity in the area south of Te Anau, South Island. 22 reports of felt intensity came from the area east and north of the epicenter including 17 with weak intensity; 5 light; 0 moderate; 0 strong; 0 severe and 0 extreme.

 

This epicenter is at 104 degrees from the M 7.0 in northern California of December 5, 2024 and was probably

promoted by energy from that source.

 

JAPAN AND KURIL ISLANDS

 

O:  6FEB2025 03:03:32  39.8N  141.8E ML=4.1  EMSC   EASTERN HONSHU, JAPAN        

P:  5FEB2025 169467    39.0N  142.0E 4.0-5.4 AAAAA  Off East Coast Honshu      

 

O:  5FEB2025 14:04:42  50.9N  157.3E MB=4.2  EMSC   KURIL ISLANDS                

P:  5FEB2025 169550    52.0N  158.0E 4.0-5.9 ABAAA  Kamchatka                  

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 05FEB2025 10:33:22  31.5N  115.2W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

O:  5FEB2025 09:37:45  31.4N  115.1W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO      

P:  3FEB2025 169471    31.6N  114.6W 2.0-4.3 AAAAA  SW U.S.A                   

 

O:  5FEB2025 18:16:10  38.8N  122.8W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P:  5FEB2025 169448    38.9N  122.8W 2.5-4.6 AAAAA  Central California         

 

O:  5FEB2025 08:39:26  39.2N  120.4W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P:  8FEB2025 169450    39.8N  120.6W 2.5-4.5 BAAAA  Central California         

 

O:  6FEB2025 01:42:41  39.5N  119.5W ML=2.0  EMSC   NEVADA                       

P:  4FEB2025 169443    39.1N  119.6W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 05FEB2025 23:08:59  39.9N  123.6W MD=2.3  EMSC   NORTHERN CALIFORNIA

O: 06FEB2025 04:23:35  39.9N  123.6W MD=2.2  EMSC   NORTHERN CALIFORNIA

O:  5FEB2025 07:55:08  39.6N  123.6W MD=2.3  EMSC   NORTHERN CALIFORNIA          

P:  4FEB2025 169449    39.7N  123.7W 2.5-4.6 AAAAA  Central California          

 

O:  5FEB2025 18:24:27  40.3N  124.6W MD=2.2  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  4FEB2025 169449    39.7N  123.7W 2.5-4.6 AAAAA  Central California         

 

NEIC reported an earthquake of M 2.8 in Los Angeles, California was felt with moderate intensity up to V in the area(s) of Los Angeles, California at Irvine; IV in Santa Ana; III in Chino hills, Foothill Ranch, Silverado, Norco, Corona, amd II in Chino, Aliso Viejo, Anaheim, Orange, Corona, Yorba Linda.

 

ALASKA

 

O:  5FEB2025 08:15:44  54.9N  158.3W MB=4.9  EMSC   SOUTH OF ALASKA              

P:  9FEB2025 169543    54.8N  158.7W 3.5-5.0 BAAAA  Alaska Peninsula           

 

O:  5FEB2025 07:31:24  60.1N  159.4W ML=3.4  EMSC   SOUTHERN ALASKA              

P: 26JAN2025 169294    61.3N  158.5W 3.2-4.9 CAAAA  Central Alaska             

 

NEIC reported an earthquake of M 3.0 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska at Anchorage and Eagle River.

 

O: 05FEB2025 08:07:09  61.3N  150.7W mb=4.6  EMSC   SOUTHERN ALASKA

O:  6FEB2025 00:18:01  61.0N  150.4W ML=3.0  EMSC   SOUTHERN ALASKA              

P:  8FEB2025 169561    60.8N  151.7W 3.2-5.3 AAAAA  Central Alaska             

 

O:  5FEB2025 08:09:28  65.4N  148.2W ML=3.6  EMSC   NORTHERN ALASKA              

P:  6FEB2025 169562    63.0N  144.6W 3.2-5.1 ACBAA  Central Alaska             

 

NEIC reported an earthquake of M 3.6  in northern Alaska was felt with moderate intensity up to II-III in the area(s) of northern Alaska in North Pole and Anchorage; III in Elmendorf AFB, Eatle River, Fairbanks.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O: 06FEB2025 04:01:22  32.2N  102.1W ML=2.0  EMSC   WESTERN TEXAS

O:  5FEB2025 09:53:55  31.7N  104.5W ML=2.2  EMSC   WESTERN TEXAS                

P:  7FEB2025 169472    32.5N  104.6W 2.0-4.1 AAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O:  5FEB2025 12:23:57  29.0N   98.0W ML=2.8  EMSC   SOUTHERN TEXAS               

P:  3FEB2025 169432    28.0N   98.0W 3.0-4.6 AAAAA  Northern Mexico            

 

NEIC reported an earthquake of M 2.8 in Southern Texas was felt with moderate intensity up to II-III in the area(s) of Southern Texas at Falls City and II in Von Ormy, Hobson, Karnes City.

 

O: 05FEB2025 11:20:09  35.1N   97.6W ML=2.1  EMSC   OKLAHOMA

O: 06FEB2025 03:01:27  35.1N   97.6W ML=2.3  EMSC   OKLAHOMA

O:  5FEB2025 11:51:39  35.5N   96.8W ML=2.2  EMSC   OKLAHOMA                     

P:  6FEB2025 169492    35.0N   96.0W 2.0-4.3 AAAAA  Southern Plains            

 

NEIC reported an earthquake of M 2.0 in Oklahoma was felt with moderate intensity up to III-IV in the area(s) of Oklahoma at Blanchard and Puecell.

 

O:  4FEB2025 22:25:03  47.8N   73.3W MB=2.3  ECAN OF WEMOTACI, QC                

P:  4FEB2025 169514    47.0N   69.0W 2.0-4.2 AACAA  Maine                      

 

O:  4FEB2025 11:29:30  46.5N   74.9W MB=1.4  ECAN OF RIVI├¿RE-ROUGE, QC          

P:  1FEB2025 169518    45.0N   73.0W 2.0-3.9 BBBAA  New England                

 

O:  4FEB2025 20:30:01  47.7N   69.9W MB=0.7  ECAN OF LA MALBAIE, QC              

O:  4FEB2025 06:20:41  47.0N   70.9W MB=1.9  ECAN OF MONTMAGNY, QC               

P:  4FEB2025 169514    47.0N   69.0W 2.0-4.2 AAAAA  Maine                      

 

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

MODERATELY STRONG EARTHQUAKE SHAKES GUATEMALA

 

EARTHQUAKE SUMMARY FOR FEBRUARY 4, 2025

 

A strong earthquake of M 5.7 (NEIC) to M 6.0 (INET) occurred today in the region

of Guatemala. NEIC reported slight damage and intensity VI in Guatemala in Quezaltenango at Genova and V in Almolonga, Parramos, Chimaltenango, La Gomera, Escuintla, Guatemala City, Villa Nueva, San Lucas Sacatepequez, Santa Lucia Milpas, Tapachula, Chiapas, IV throughout Guatemala within about 150 km of the epicenter and III throughout the remainder of Guatemala. EMSC reported very strong shaking in Guatemala at El Tejar, Solano, Guatemala City, San Cristobal, Boca del Monte, Colonia Valles de Vista Hermosa, and in San Salvador, El Salvador. A major earthquake hit Guatemala with great damage and  loss of life on February 4, 1976. It was reported in the previous issue of this summary in the "HISTORY" section as:

 

" 2  4  9  1 43 1976  15.324  -89.101   5 7.5   Guatemala

 

This was a strike-slip rupture which was felt over an area of at least 100,000 sq. km. on the Motagua fault. The quake killed at least 22,700 and injured more than 75,000. Losses were estimated at $1.1 billion U.S. dollars. Ground breakage occurred over 240 km, the longest rupture in America since the San Francisco quake of 1906. Maximum slippage occurred north of Guatemala City. Landslides were extensive and blocked railroads and communications in the Guatemala highlands. The quake was felt with maximum intensity IX in Mixco and sections of Guatemala City and Gualan. Many communities and towns were completely destroyed in an area around the fault of 1700 sq. km. Buildings near the fault suffered little damage, but those at a distance from the fault were completely destroyed. Many modern "earthquake resistant" structures collapsed. All houses in the towns of San Pedro Sacatepequez, El Jicaro, Sumpango, Tecpan dna Gualan were destroyed." (February 4, 2025)

 

 

The last earthquake located in Guatemala within about 200 km of this epicenter with M>=5.7 was an M 5.8 on October 25, 2024. The last within this area of M>=6 was an M 6.2 on February 16, 2022. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.2 in Southern Guatemala. NEIC reported it was felt with intensity VIII in Escuintla, Guatmala and VII  in Mazatenango, Suchitepequez and V in San Francisco Zapotitlan with IV in San Pedro la Laguna, Acatenango, Chimaltenango, San Juan la Laguna, Solola, La Gomera, Escuintla and Atitlan, Solola; V in Retalhuleu. It was also felt with intensity IV in El Salvador, Chiapas, Mexico, Oaxaca, Mexico, Honduras, and Panama. The mainshock in Guatemala was preceded by a moderate foreshock to the east in El Salvador. NEIC reported this event was felt with intensity IV in El Salvador in Delgado and Llopango, San Salvador and III in Antiguo Cuscatlan, San Marcos and La Libertad. This activity was likely promoted by high tidal stresses with the full moon

 

...

 

 

Today's event is the strongest earthquake within about 150 km of today's epicenter since an M 6.6 on February 1, 2019 and prior to that an M 6.8 on June 22, 2017. Forecast 141111 had expected today's enhanced seismicity was likely within  about 100 km around February 17. This activity is at 142-146 degrees from the strong earthquakes in Indonesia of late December and may have been promoted by energy from those sources.  This epicenter is also at the fifth node

(72 degrees) from the M 6.8 in the Fox Islands, Aleutians of January 11 and may have been promoted by energy from that source." (February 15-16, 2022)

 

Today's event of M 5.7-6.0 occurred near local solar midnight and may have been promoted by tidal stresses which maximize near this hour. It occurred near the antipode of Tropical Cyclone Vince (13S). In this and previous issues of this summary it had been anticipated a moderate to large earthquake could occur in Guatemala (the antipode of TC Vince) at this time as:

 

"TC    VINCE    2025-02-05  00:00 UT  17.8S   90.1E  125 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 125 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 90W is in Northern Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and could help promote a moderate to strong earthquake in that area in the next couple of days." (February 3-4, 2025)

 

This earthquake also follows a volcanic eruption near this epicenter on January 27, 2025. At the time this summary noted this as:

 

"A strong eruption of Santiaguito Volcano in Guatemala occurred on January 27, 2025. The eruption included red hot rocks and plumes of smoke and ash rising nearly 1200 meters. Santiaguito is a part of the Santa Maria Volcano complex near Quetzaltenango. A major eruption in the area occurred in 1902 killing more than 5000 people." (February 1, 2025)

 

The local seismic network (INETER - Instituto Nicaraguense de Estudios Territoriales and CATAC - Centro de Asesoramiento de Tsunamis en America Central) provided the following data for this earthquake in Guatemala:

 

This earthquake in Guatemala was closely associated with a Solar flare and occurred near the beginning of that event. SWPC data for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

1510       0709   0715      0723   C2.6      (February 5, 2025)   1.0E-03  

Vanuatu M 4.8 07:17 UT

Guatemala M 5.6 07:01 UT

 

This earthquake is located at 103 degrees from the M 7.4 in Vanuatu of December 17, 2024 and also at the third node (120 degrees) from the M 6.8 in Kyushu, Japan of February 13, 2025 and may have been promoted by energy from that source. A series of moderate earthquakes in the Northern Mid-Atlantic was also near the third node from Kyushu.

 

Forecast 169405 had expected today's M 5.6-6.0 in Guatemala was likely within about 25 km of this epicenter around February 4, 2025.

 

O:  5FEB2025 07:01:18  13.8N   91.6W MW=5.6  EMSC   OFFSHORE GUATEMALA           

O: 05FEB2025 07:01:19  13.9N   91.6W ML=6.0  INET   Southern Guatemala   

O: 05FEB2025 07:01:19  13.8N   91.7W ML=5.7  UNAM   Southern Guatemala   

O: 05FEB2025 05:45:03  13.9N   89,8W ML=3.9  INET   Southern Guatemala   

O:  5FEB2025 07:01:18  13.8N   91.6W MW=5.6  ANSS   NUEVA CONCEPCION GUATEMALA  

P:  4FEB2025 169405    14.0N   92.0W 3.5-5.5 AAAAA  Guatemala                  

 

Earthquakes also continued in the Dodecanese Islands today. The largest event

in the series thus far occurred today with M 5.3. EMSC reported intense shaking was felt in Greece at Thira, Naxos and Lesser Cyclades, Marpissa, Mykonos, Kamari, Ermoupoli, Patmos among others. NEIC reported this earthquake was felt near Mesaria, Greece with intensity up to VII. It was also felt with intensity VI in Thira and V in Andros Nisia Aigaiou Kriti and II-III in Greece at Gazion, mikonos and Ino Siros and in Izmir, Turkey with intensity II. It may have been felt lightly as far as Slovakia and Poland. This is part of the strong swarm in the area which began in late January, 2025. News reports indicate some people are evacuating the area due to the continuing seismic shaking. Santorini is one of the most popular tourist attractions in the area.

 

Forecast 169439 had expected enhanced seismicity in this area was likely in early February, 2025.

 

O: 04FEB2025 12:36:50  36.5N   25.6E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 13:04:15  36.5N   25.7E Mw=5.2  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 09:09:31  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 12:50:21  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 17:10:52  36.6N   25.6E Mw=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:03:40  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:43:32  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:50:34  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:52:04  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:00:23  36.6N   25.6E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:05:39  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:18:22  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:40:59  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 23:50:47  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 01:55:23  36.6N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 02:16:44  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 02:21:05  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 08:15:45  36.7N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 08:55:28  36.7N   25.8E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 09:01:24  36.7N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 09:03:20  36.7N   25.8E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 10:35:49  36.7N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:03:10  36.7N   25.6E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O:  4FEB2025 13:04:13  36.5N   25.6E MW=5.3  ANSS   ENE OF MESARI├í GREECE       

P:  4FEB2025 169439    36.0N   26.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

A series of moderate earthquake occurred at three epicenters in the Mid-Atlantic Ocean ridge today. None of these were reported felt. They occurred in the  Southern Mid-Atlantic with M 4.9; in the Central mid-Atlantic also with M 4.9 and in the Northern Mid-Atlantic with events of M 5.0 and 5.0.

 

Forecast 169595 had expected the event in the Southern Mid-Atlantic was likely  around February 7 within about 250 km of this epicenter.

 

O:  5FEB2025 01:33:11  22.6S   12.7W MB=4.9  ANSS   SOUTHERN MID-ATLANTIC RIDGE  

P:  7FEB2025 169595    20.0S   12.0W 4.0-5.8 ACAAA  So. Mid-Atlantic Ridge     

 

The earthquake in the Central mid-Atlantic is located at 104 degrees from the M 7.1 in Tibet of January 7 and at 102 degrees from the M 7.0 off Northern California of December 5, 2024 and may have been promoted by energy from those sources.

 

Forecast 169376 had expected the event in the Central Mid-Atlantic was likely  around February 6 within about 100 km of this epicenter.

 

O:  4FEB2025 17:18:23   0.4S   19.5W MB=4.9  ANSS   CENTRAL MID-ATLANTIC RIDGE   

P:  6FEB2025 169376     1.0S   20.0W 4.0-5.7 AAAAA  Central Mid-Atlantic       

 

The earthquakes in the north Atlantic are located at 103 degrees from the M 7.1 in Tibet of January 7, 2025 and are near the third node (120 degrees) from the M 6.8 in Kyushu, Japan of February 13, 2025 and may have been promoted by energy from those sources. The strong earthquake in Guatemala today shared this distance to Kyushu.

 

Forecasts 169464 and 169201 had expected the events in the northern Mid-Atlantic were likely around February 6 within about 150 km of this epicenter.

 

O:  4FEB2025 18:21:58  30.8N   41.0W MB=5.1  ANSS   NORTHERN MID-ATLANTIC RIDGE  

O:  4FEB2025 17:37:58  31.0N   41.4W MB=5.0  ANSS   NORTHERN MID-ATLANTIC RIDGE   

O: 04FEB2025 17:37:59  31.1N   41.5W mb=5.0  EMSC   NORTHERN MID-ATLANTIC RIDGE

P:  6FEB2025 169464    33.0N   40.0W 4.0-5.5 ABBAA  No. Mid-Atlantic Ridge     

P: 26JAN2025 169201    32.0N   41.0W 4.0-5.6 CAAAA  No. Mid-Atlantic Ridge     

 

NEIC reported an earthquake of M 5.5 in Sulawesi, Indonesia was felt with moderate intensity up to II-III in the area(s) of Sulawesi, Indonesia at Manado and Buayan, Mindanao, Philippines.  BMG reported intensity III in Halmahera at Jailolo, Loloda, Ibu, Sahu, Gallela, Kao, Malifut, Tobelo, Galella, Kao and in Ternate at Pulau.

 

This event may be related to the series of tropical cyclones currently active to the south of this epicenter and north of Australia (see WEATHER section of this summary.

 

 

This earthquake may have been triggered by strong SFE associated with Solar Flare 1500 of M 1.2 class as it occurred at the beginning of that flare. SWPC data for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 

1500       0312   0315      0322   M1.2      (February 5, 2025)   5.2E-03  

Halmahera M 5.5 03:12 UT

 

 

Forecast 169367 had expected enhanced seismicity within about 200 km of this

epicenter was likely around February 6, 2025.

 

 

O:  5FEB2025 03:12:30   1.6N  127.1E MW=5.5  ANSS   NNW OF TERNATE INDONESIA     

O: 05FEB2025 03:12:31   1.6N  127.1E ML=6.0  BMG    Halmahera            

P:  6FEB2025 169367     2.0N  125.0E 4.0-5.5 AABAA  Mindanao, Philippines      

 

 

A strong series of earthquake occurred today in the Unimak and Fox Islands, Alaska. These were not reported felt. An M 5.3 occurred on March 12, 2015, the last such event of M>=5 within about 200 km of today's swarm. At the time this summary noted:

 

 

"The strongest earthquake in the world today (as well as in the U.S.) occurred in the Unimak Islands, False Pass area south of Alaska. This event of M 5.3-5.6 was not reported felt in this remote epicentral area. The last earthquake of M>=5.3 within 150 km of this epicenter was an M 5.5 on May 3, 2010. The last of M>=5.6 was an M 5.7 on November 27, 2003 more than 12 years ago." (March 12, 2015)

 

Today’s activity in the Unimak Islands, Alaska had been anticipated in forecast 169549 to occur within about 100 km around February 3, 2025.

 

O: 04FEB2025 19:32:26  53.3N  163.9W Mw=4.6  EMSC   UNIMAK ISLAND REGION, ALASKA

O: 04FEB2025 19:27:46  53.4N  163.9W Mw=5.0  EMSC   UNIMAK ISLAND REGION, ALASKA

O:  4FEB2025 19:32:28  53.3N  163.9W MR=4.6  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 17:24:02  53.4N  163.9W MB=3.7  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 16:31:23  53.4N  164.0W MB=4.4  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 19:27:46  53.4N  164.0W MW=5.0  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 18:30:38  54.8N  165.1W ML=3.8  ANSS   NNE OF AKUTAN ALASKA         

P:  3FEB2025 169549    53.7N  165.3W 3.5-5.3 AAAAA  Fox Islands, Aleutians     

 

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O:  4FEB2025 11:35:43  28.9N   81.5E ML=4.2  EMSC   NEPAL-INDIA BORDER REGION    

P: 24JAN2025 169230    30.0N   81.0E 3.8-5.4 CBAAA  Xizang                     

 

O:  4FEB2025 20:00:06  38.3N   76.3E MB=4.9  EMSC   SOUTHERN XINJIANG, CHINA     

P:  7FEB2025 169465    39.0N   77.0E 3.8-5.3 BAAAA  Northern India             

 

O:  4FEB2025 23:42:32  41.2N   83.7E MB=5.0  EMSC   SOUTHERN XINJIANG, CHINA     

P:  3FEB2025 169512    40.0N   78.0E 4.0-5.4 ABCAA  Kirgizstan/Xinjiang        

 

O:  4FEB2025 14:17:47  28.1N   52.4E MB=4.4  EMSC   SOUTHERN IRAN                

O:  4FEB2025 14:17:45  28.1N   52.4E MB=4.4  ANSS   NW OF MOHR IRAN              

P:  4FEB2025 169435    29.0N   51.0E 3.5-5.1 AAAAA  So. Iran/Persian Gulf      

P:  9FEB2025 169435    28.0N   52.0E 3.5-5.0 BAAAA  So. Iran/Persian Gulf      

 

O:  4FEB2025 20:00:05  38.2N   76.5E MB=4.9  ANSS   NNW OF HUOSHILAFU CHINA      

P:  7FEB2025 169465    39.0N   77.0E 3.8-5.3 BAAAA  Northern India             

 

O: 05FEB2025 00:53:22  41.3N   83.9E mb=4.0  EMSC   SOUTHERN XINJIANG, CHINA

O:  4FEB2025 23:42:32  41.3N   83.8E MB=5.0  ANSS   ESE OF KUQA CHINA            

P:  7FEB2025 169512    42.0N   79.0E 4.0-5.5 AAAAA  Kirgizstan/Xinjiang        

 

INDONESIA AND PHILIPPINES

 

O:  4FEB2025 04:49:58   9.9S  119.3E ML=3.2  EMSC   SUMBA REGION, INDONESIA      

P:  5FEB2025 169395     8.0S  118.0E 4.0-5.4 ABBAA  Sumbawa Island area        

 

O:  5FEB2025 05:06:42   5.8S  130.5E ML=4.4  EMSC   BANDA SEA                    

P:  3FEB2025 169377     4.0S  129.0E 4.0-5.5 ABAAA  Ceram area                  

 

O:  4FEB2025 09:47:37   6.9S  105.0E ML=4.2  EMSC   SUNDA STRAIT, INDONESIA      

P:  3FEB2025 169392     6.0S  104.0E 4.0-5.4 AAAAA  So. of Sumatera            

 

O:  5FEB2025 03:12:30   1.6N  127.1E MW=5.5  ANSS   NNW OF TERNATE INDONESIA     

O:  5FEB2025 03:12:30   1.5N  127.1E MW=5.5  EMSC   HALMAHERA, INDONESIA         

P:  6FEB2025 169367     2.0N  125.0E 4.0-5.5 AABAA  Mindanao, Philippines      

 

O:  4FEB2025 09:36:45   5.5S  151.9E MB=5.2  EMSC   NEW BRITAIN REGION, P.N.G.   

O:  4FEB2025 09:36:46   5.5S  151.9E MB=5.2  ANSS   KOKOPO PAPUA NEW GUINEA      

P:  4FEB2025 169383     6.0S  152.0E 4.0-5.4 AAAAA  New Britain                

 

O:  4FEB2025 17:42:28   7.1S  131.0E MB=4.6  ANSS   SW OF TUAL INDONESIA         

P:  5FEB2025 169374     8.0S  129.0E 4.0-5.7 AABAA  Banda Sea                  

 

CENTRAL AND SOUTH AMERICA

 

 

O:  4FEB2025 14:53:30  15.2S   74.5W MB=4.4  EMSC   NEAR COAST OF SOUTHERN PERU  

P:  7FEB2025 169572    15.0S   76.0W 4.0-5.8 BABAA  Central Peru               

 

O:  5FEB2025 04:10:22  18.6N   65.3W MD=3.0  EMSC   PUERTO RICO REGION           

P:  6FEB2025 169408    19.0N   64.0W 3.0-5.4 AAAAA  Leeward Islands            

 

O:  4FEB2025 08:56:25  18.6N  107.8W ML=4.2  EMSC   OFF COAST OF JALISCO, MEXICO 

P:  4FEB2025 169403    19.0N  107.0W 3.5-5.6 AAAAA  Coast of Jalisco, Mexico   

 

A moderate quake was reported felt in Tarapaca, Chile today. GUC (CSN) reported it with the following parameters:

 

O:  5FEB2025 09:08     20.3S   69.2W MB=4.6  CSN    TARAPACA, CHILE           

O:  5FEB2025 01:18:47  21.2S   68.5W MB=4.2  EMSC   ANTOFAGASTA, CHILE           

P:  2FEB2025 169589    22.0S   69.0W 4.0-5.6 BAAAA  Coast No. Chile            

 

CSN (GUC) reported this earthquake was felt with intensity  IV in  Tarapaca at Mamina, Pica, Ujina, Iquique and III in Alto hospicio and La Tirana, Chile.

 

 

O:  4FEB2025 07:45:13   3.6S   80.0W MB=4.6  EMSC   PERU-ECUADOR BORDER REGION   

O:  4FEB2025 07:45:13   3.6S   80.0W MB=4.6  ANSS   ENE OF MATAPALO PERU         

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 ABBAA  Ecuador                    

 

NEIC reported an earthquake of M 4.6 in Northern Peru was felt with moderate intensity up to II-III in the area(s) of Northern Peru in Cuenca Azuay, Ecuador.

EMSC reported light shaking in Ecuador at Machala and San Joaquin.

 

O:  5FEB2025 07:01:18  13.8N   91.6W MW=5.6  ANSS   NUEVA CONCEPCION GUATEMALA  

P:  4FEB2025 169405    14.0N   92.0W 3.5-5.5 AAAAA  Guatemala                  

 

O: 05FEB2025 04:43:06  14.8N   92.5W ML=4.0  EMSC   CHIAPAS, MEXICO

O: 05FEB2025 05:06:27  15.2N   91.7W ML=4.1  EMSC   GUATEMALA

 

O:  4FEB2025 14:53:30  15.2S   74.5W MB=4.4  ANSS   NNE OF ACAR├¡ PERU           

P:  6FEB2025 169571    15.0S   73.0W 4.0-5.5 AABAA  Central Peru               

 

O:  5FEB2025 04:10:22  18.6N   65.3W MD=3.1  ANSS   CULEBRA PUERTO RICO          

P:  6FEB2025 169408    19.0N   64.0W 3.0-5.4 AAAAA  Leeward Islands            

 

O:  4FEB2025 08:56:25  18.6N  107.8W MB=4.2  ANSS   CRUZ DE LORETO MEXICO        

P:  4FEB2025 169403    19.0N  107.0W 3.5-5.6 AAAAA  Coast of Jalisco, Mexico   

 

O:  5FEB2025 01:22:19  19.4S   69.4W MB=4.1  ANSS   SSW OF CAMI├▒A CHILE         

P:  5FEB2025 169589    20.0S   70.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

 

O:  5FEB2025 01:18:47  21.2S   68.5W MB=4.2  EMSC   ANTOFAGASTA, CHILE           

O:  5FEB2025 01:18:47  21.1S   68.5W MB=4.2  ANSS   WNW OF OLLAG├╝E CHILE        

P:  5FEB2025 169589    20.0S   70.0W 4.0-5.6 ABBAA  So. Peru/Bolivia           

 

 

AFRICA AND EUROPE

 

O: 04FEB2025 12:36:50  36.5N   25.6E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 13:04:15  36.5N   25.7E Mw=5.2  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 09:09:31  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 12:50:21  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 17:10:52  36.6N   25.6E Mw=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:03:40  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:43:32  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:50:34  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 19:52:04  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:00:23  36.6N   25.6E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:05:39  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:18:22  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:40:59  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 23:50:47  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 01:55:23  36.6N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 02:16:44  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 05FEB2025 02:21:05  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 08:15:45  36.7N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 08:55:28  36.7N   25.8E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 09:01:24  36.7N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 09:03:20  36.7N   25.8E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 10:35:49  36.7N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 20:03:10  36.7N   25.6E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O:  4FEB2025 13:04:13  36.5N   25.6E MW=5.3  ANSS   ENE OF MESARI├í GREECE       

P:  4FEB2025 169439    36.0N   26.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

O: 05FEB2025 01:16:09  71.5N    3.2W ML=4.0  EMSC   JAN MAYEN ISLAND REGION

O: 05FEB2025 01:17:21  71.5N    3.4W ML=4.2  EMSC   JAN MAYEN ISLAND REGION

O: 05FEB2025 01:53:44  71.0N    3.6W ML=3.9  EMSC   JAN MAYEN ISLAND REGION

P: 06FEB2025 169570    71.0N    7.0W 3.0-5.0 AAAAA  Jan Mayen Isl. area        

 

O:  4FEB2025 18:37:17   9.2N   39.8E MB=4.4  ANSS   NNW OF METAH─üRA ETHIOPIA    

P:  6FEB2025 169404     9.0N   41.0E 3.5-5.1 AAAAA  Ethiopia                   

 

O:  4FEB2025 17:51:58  40.4N   15.0E MB=4.3  ANSS   WSW OF LAURA ITALY           

P:  8FEB2025 169510    40.0N   17.0E 3.0-5.7 BABAA  Italy                      

 

O:  4FEB2025 16:06:14  45.8N   26.6E ML=4.2  EMSC   ROMANIA                      

P:  4FEB2025 169531    40.0N   26.0E 3.0-5.3 ACAAA  Romania/NW Turkey          

 

 

SOUTHWEST PACIFIC

 

O:  5FEB2025 07:17:42  19.2S  168.7E MB=4.8  EMSC   VANUATU                      

P:  5FEB2025 169584    18.0S  168.0E 4.0-5.6 ABAAA  Vanuatu Islands            

 

O:  4FEB2025 16:37:57  15.1S  172.7W MB=4.9  ANSS   NE OF HIHIFO TONGA           

P:  4FEB2025 169579    15.0S  174.0W 4.0-5.7 AAAAA  Samoa Islands              

 

O: 04FEB2025 11:17:59  16.0S  171.7W mb=4.6  EMSC   SAMOA ISLANDS REGION

O:  4FEB2025 11:17:58  16.0S  171.8W MB=4.6  ANSS   E OF HIHIFO TONGA            

P:  3FEB2025 169583    16.0S  174.0W 4.0-5.8 AABAA  Tonga Islands              

 

OCEAN RIDGES

 

O:  5FEB2025 01:33:11  22.6S   12.7W MB=4.9  ANSS   SOUTHERN MID-ATLANTIC RIDGE  

P:  7FEB2025 169595    20.0S   12.0W 4.0-5.8 ACAAA  So. Mid-Atlantic Ridge     

 

O:  4FEB2025 17:18:23   0.4S   19.5W MB=4.9  ANSS   CENTRAL MID-ATLANTIC RIDGE   

P:  6FEB2025 169376     1.0S   20.0W 4.0-5.7 AAAAA  Central Mid-Atlantic       

 

O:  4FEB2025 18:21:58  30.8N   41.0W MB=5.1  ANSS   NORTHERN MID-ATLANTIC RIDGE  

O:  4FEB2025 17:37:58  31.0N   41.4W MB=5.0  ANSS   NORTHERN MID-ATLANTIC RIDGE  

O: 04FEB2025 17:37:59  31.1N   41.5W mb=5.0  EMSC   NORTHERN MID-ATLANTIC RIDGE

P:  6FEB2025 169464    33.0N   40.0W 4.0-5.5 ABBAA  No. Mid-Atlantic Ridge     

P: 26JAN2025 169201    32.0N   41.0W 4.0-5.6 CAAAA  No. Mid-Atlantic Ridge     

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 05FEB2025 03:18:01  35.2S  178.3E ML=4.0  EMSC   OFF E. COAST OF N. ISLAND, N.Z.

O:  5FEB2025 03:09:00  35.3S  178.8E MB=4.9  ANSS   HICKS BAY NEW ZEALAND        

P:  6FEB2025 169604    38.0S  179.0E 3.0-4.6 ACAAA  North Island, N.Z.         

 

JAPAN AND KURIL ISLANDS

 

O:  4FEB2025 23:47:57  46.5N  153.5E MB=5.0  ANSS   KURIL ISLANDS                

P:  9FEB2025 169535    47.0N  153.0E 3.5-5.4 BAAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  4FEB2025 20:41:57  30.9N  115.3W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

O:  4FEB2025 10:36:32  31.7N  115.1W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO      

P:  3FEB2025 169471    31.6N  114.6W 2.0-4.3 AAAAA  SW U.S.A                   

 

O:  4FEB2025 18:12:06  37.1N  121.5W MD=2.9  ANSS   SAN MARTIN CA                

P:  5FEB2025 169446    37.1N  121.5W 2.5-4.9 AAAAA  Central California         

 

NEIC reported an earthquake of M 2.9 in Central California was felt with moderate intensity up to II-III in the area(s) of Central California at Tracy (IV), Morgan Hill, San Martin and II in Gilroy and Fair Oaks.

EMSC reported brief, minor shaking in Gilroy, California.

 

O:  4FEB2025 23:50:06  37.5N  118.8W MD=2.7  ANSS   TOMS PLACE CA                

P:  6FEB2025 169443    37.3N  119.4W 2.5-4.6 AAAAA  California/Nevada area     

 

O:  4FEB2025 20:10:51  40.5N  126.9W ML=3.2  ANSS   W OF FERNDALE CALIFORNIA     

P:  5FEB2025 169525    42.1N  126.9W 3.0-4.5 ABAAA  Off Coast of Oregon        

 

O:  5FEB2025 05:08:08  40.7N  124.2W MD=2.2  ANSS   HUMBOLDT HILL CA             

P:  4FEB2025 169449    39.7N  123.7W 2.5-4.6 AAAAA  Central California         

P: 25JAN2025 169255    40.2N  124.2W 2.5-4.4 CAAAA  Off Coast of No. Calif     

 

NEIC reported an earthquake of M 2.2 in Northern California was felt with moderate intensity up to II-III in the area(s) of Northern California at Eureka and Loleta.

 

O:  4FEB2025 16:15:40  41.0N  121.2W MD=2.4  ANSS   SE OF MCARTHUR CA            

P:  3FEB2025 169522    40.3N  121.2W 2.5-4.5 AAAAA  Northern California        

 

 

ALASKA

 

O: 04FEB2025 19:32:26  53.3N  163.9W Mw=4.6  EMSC   UNIMAK ISLAND REGION, ALASKA

O: 04FEB2025 19:27:46  53.4N  163.9W Mw=5.0  EMSC   UNIMAK ISLAND REGION, ALASKA

O:  4FEB2025 19:32:28  53.3N  163.9W MR=4.6  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 17:24:02  53.4N  163.9W MB=3.7  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 16:31:23  53.4N  164.0W MB=4.4  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 19:27:46  53.4N  164.0W MW=5.0  ANSS   SE OF AKUTAN ALASKA          

O:  4FEB2025 18:30:38  54.8N  165.1W ML=3.8  ANSS   NNE OF AKUTAN ALASKA         

P:  3FEB2025 169549    53.7N  165.3W 3.5-5.3 AAAAA  Fox Islands, Aleutians     

 

O:  4FEB2025 07:51:16  55.3N  155.2W ML=4.2  ANSS   SOUTHERN ALASKA               

P:  9FEB2025 169543    54.8N  158.7W 3.5-5.0 BABAA  Alaska Peninsula           

 

O:  4FEB2025 18:13:27  56.6N  149.0W ML=3.0  ANSS   ESE OF CHINIAK ALASKA        

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O:  4FEB2025 18:32:58  31.7N  104.3W ML=2.0  ANSS   WHITES CITY NEW MEXICO       

P:  7FEB2025 169472    32.5N  104.6W 2.0-4.1 BAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O:  5FEB2025 12:23:57  28.9N   98.0W MB=2.8  ANSS   FALLS CITY TEXAS             

P:  3FEB2025 169432    28.0N   98.0W 3.0-4.6 AAAAA  Northern Mexico            

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

 

February 6, 2025

 

The swarm of earthquakes in the Santorini, Greece area of the Dodecanese Islands

appeared on the decline today. Still an M 5.1 occurred today along with a number

of other moderate sized events. Today's event of M 5.1 was reported by NEIC to have been felt with intensity up to VII in Kiklades, Greece at Kamarion and VI in Naousa with VI also at Ano Mera Nisia, Aigaiou, Kriti. Intensity III was felt up to 200 km from the epicenter in Greece at Kalivai, Hania, Iraklioin, Emborion and Andros Nisia Aigaiou Kriti.

EMSC reported strong shaking in Greece at Naxos kai Mikres Kyklades, Thira, Agia Anna, Tsoukalas, Agios Georgios, Ano Mera, Mykonos, Tinos, Patmos among other communities. Landslides have been reported with this earthquake swarm in this hilly and mountainous terrain

and are among the major hazards in the area at this time.

 

This event of M 5.1 in the Dodecanese Islands may have been promoted by SFE associated

with flare 1720 as it occurred at the peak output of that flare. Data from

SWPC for this flare follow:

 

1720       1902   1908      1914   C1.9      (February 5, 2025)   8.2E-04  

Dodecanese M 5.1 19:09 UT, M 4/4 19:01 UT

Greenland M 4.0 19:28 UT

 

 

The strongest earthquake in the U.S. or Canada today occurred as an M 4.7 south of Alaska near Perryville. NEIC reported it was felt with maximum intensity IV in Anchorage, Alaska; III in Chugiak and II in Chignik Lagoon and Eagle River, Alaska.

EMSC reported strong and long shaking in Anchorage, Wasilla, Eagle River, with lighter intensity at Palmer, Alaska.

 

NEIC reported an earthquake of M 4.6 in Coquimbo, Chile was felt with moderate intensity up to II-III in the area(s) of Coquimbo, Chile at La Serena.

EMSC reported strong shaking in Coquimbo, Chile.

 

A strong earthquake of M 5.7 (NEIC) to M 6.0 (INET) occurred today in the region

of Guatemala. NEIC reported slight damage and intensity VI in Guatemala in Quezaltenango at Genova and V in Almolonga, Parramos, Chimaltenango, La Gomera, Escuintla, Guatemala City, Villa Nueva, San Lucas Sacatepequez, Santa Lucia Milpas, Tapachula, Chiapas, IV throughout Guatemala within about 150 km of the epicenter and III throughout the remainder of Guatemala.

EMSC reported very strong shaking in Guatemala at El Tejar, Solano, Guatemala City, San Cristobal, Boca del Monte, Colonia Valles de Vista Hermosa, and in San Salvador, El Salvador.

A major earthquake hit Guatemala with great damage and  loss of life on February 4, 1976. It ws

reported in the previous issue of this summary in the "HISTORY" section as:

 

" 2  4  9  1 43 1976  15.324  -89.101   5 7.5   Guatemala

 

This was a strike-slip rupture which was felt over an area of at least 100,000 sq. km. on the Motagua fault. The quake killed at least 22,700 and injured more than 75,000. Losses were estimated at $1.1 billion U.S. dollars. Ground breakage occurred over 240 km, the longest rupture in America since the San Francisco quake of 1906. Maximum slippage occurred north of Guatemala City. Landslides were extensive and blocked railroads and communications in the Guatemala highlands. The quake was felt with maximum intensity IX in Mixco and sections of Guatemala City and Gualan. Many communities and towns were completely destroyed in an area around the fault of 1700 sq. km. Buildings near the fault suffered little damage, but those at a distance from the fault were completely destroyed. Many modern "earthquake resistant" structures collapsed. All houses in the towns of San Pedro Sacatepequez, El Jicaro, Sumpango, Tecpan dna Gualan were destroyed." (February 4, 2025)

 

 

The last earthquake located in Guatemala within about 200 km of this epicenter

with M>=5.7 was an M 5.8 on October 25, 2024. The last within this area of M>=6

was an M 6.2 on February 16, 2022. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.2 in Southern Guatemala. NEIC reported it was felt with intensity VIII in Escuintla, Guatmala and VII  in Mazatenango, Suchitepequez and V in San Francisco Zapotitlan with IV in San Pedro la Laguna, Acatenango, Chimaltenango, San Juan la Laguna, Solola, La Gomera, Escuintla and Atitlan, Solola; V in Retalhuleu, a

It was also felt with intensity IV in El Salvador, Chiapas, Mexico, Oaxaca, Mexico, Honduras, and Panama.

The mainshock in Guatemala was preceded by a moderate foreshock to the east in

El Salvador. NEIC reported this event was felt with intensity IV in El Salvador in Delgado and Llopango, San Salvador and III in Antiguo Cuscatlan, San Marcos and La Libertad.

This activity was likely promoted by high tidal stresses with the full moon

 

...

 

 

Today's event is the strongest earthquake within about 150 km of today's epicenter

since an M 6.6 on February 1, 2019 and prior to that an M 6.8 on June 22, 2017.

Forecast 141111 had expected today's enhanced seismicity was likely within

about 100 km around February 17. This activity is at 142-146 degrees from

the strong earthquakes in Indonesia of late December and may have been

promoted by energy from those sources.  This epicenter is also at the fifth node

(72 degrees) from the M 6.8 in the Fox Islands, Aleutians of January 11 and

may have been promoted by energy from that source." (February 15-16, 2022)

 

Today's event of M 5.7-6.0 occurred near local solar midnight and may have

been promoted by tidal stresses which maximize near this hour. It occurred

near the antipode of Tropical Cyclone Vince (13S). In this and previous

issues of this summary it had been anticipated a moderate to large earthquake

could occur in Guatemala (the antipode of TC Vince) at this time as:

 

"TC    VINCE    2025-02-05  00:00 UT  17.8S   90.1E  125 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 125 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 90W is in Northern Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and could help promote a moderate to strong earthquake in that area in the next couple of days." (February 3-4, 2025)

 

This earthquake also follows a volcanic eruption near this epicenter on January 27, 2025. At the time

this summary noted this as:

 

"A strong eruption of Santiaguito Volcano in Guatemala occurred on January 27, 2025. The eruption included red hot rocks and plumes of smoke and ash rising nearly 1200 meters. Santiaguito is a part of the Santa Maria Volcano complex near Quetzaltenango. A major eruption in the area occurred in 1902 killing more than 5000 people." (February 1, 2025)

 

This earthquake in Guatemala was closely associated with a Solar flare and occurred

near the beginning of that event. SWPC data for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

1510       0709   0715      0723   C2.6      (February 5, 2025)   1.0E-03  

Vanuatu M 4.8 07:17 UT

Guatemala M 5.6 07:01 UT

 

 

The local seismic network (INETER - Instituto Nicaraguense de Estudios Territoriales and CATAC - Centro de Asesoramiento de Tsunamis en America Central) provided the

following data for this earthquake in Guatemala:

 

 

O: 05FEB2025 07:01:19 13.9N  91.6W ML=6.0  INET   Southern Guatemala   

O: 05FEB2025 07:01:19 13.8N  91.7W ML=5.7  UNAM   Southern Guatemala   

O: 05FEB2025 05:45:03 13.9N  89,8W ML=3.9  INET   Southern Guatemala   

 

 

NEIC reported an earthquake of M 2.0 in Oklahoma was felt with moderate intensity up to III-IV in the area(s) of Oklahoma at Blanchard and Puecell.

 

NEIC reported an earthquake of M 3.0 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska at Anchorage and Eagle River.

 

NEIC reported an earthquake of M 2.8 in Los Angeles, California was felt with moderate intensity up to V in the area(s) of Los Angeles, California at Irvine; IV in Santa Ana; III in Chino hills, Foothill Ranch, Silverado, Norco, Corona, amd II in Chino, Aliso Viejo, Anaheim, Orange, Corona, Yorba Linda.

 

NEIC reported an earthquake of M 2.8 in Southern Texas was felt with moderate intensity up to II-III in the area(s) of Southern Texas at Falls City and II in Von Ormy, Hobson, Karnes City.

 

NEIC reported an earthquake of M 4.9 in Ecuador was felt with moderate intensity up to III in the area(s) of Ecuador  at Cuenca Azuay and Santa Lucia, Guayas and II in Loja, Ecuador.

EMSC reported short but strong shaking in Ecuador at Samborondon, Loja and Guayaquil.

 

NEIC reported an earthquake of M 3.6  in northern Alaska was felt with moderate intensity up to II-III in the area(s) of northern Alaska in North Pole and Anchorage; III in Elmendorf AFB, Eatle River, Fairbanks.

 

NEIC reported an earthquake of M 4.3 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska at Anchorage, Elmendorf AFB, Fort Richardson, Indian, Chugiak, Girdwood, Kenai, Moose Pass, Wasilla, Skwentna, Valdez and II in Anchor Point, Kasilof, Palmer, Soldotna, Tyonek, Willow and Haines.

 

EMSC reported an earthquake of M 4.9 in Northern Chile was felt with  intensity up to IV in the area(s) of Northern Chile in Tarapaca at Alto Hospicio.

 

BMG reported an earthquake of M 5.5 in Kepulauan, Talaud Islands, Indonesia was felt with  intensity up to IV in the area(s) of Kepulauan, Talaud Islands, Indonesia at Lirung, Beo, Rainis, Essang, Nanusa, Kabaruan, Melonguane, Gemeh, Damau, Salibabu, Kalongan, Pulutan, with II in Siau.

 

BMG  reported an earthquake of M 5.6 in New Guinea was felt with III intensity up to IV in the area(s) of New Guinea in Keerpm at Waris, Skanto, Arso, Mannem and in Jayapura at Muara Tami. Also felt with intensity II in Sarmi, Keerom, Pegunungan, Yahukimo. An aftershock of M 5.5 was felt in a similar area north of New Guinea.

 

CSN (GUC) reported an earthquake M 4.6 was felt today in Los Lagos, Chile. That agency

reported the following parameters for this earthquake:

 

06-02-2025  12:21  42.49S 74.26W  49  4.6     V   Los Lagos at Castro, Puqueldon; IV in Quemchi, Ancud, Dalcahue, Quellon and III in Chaiten, Chile.

 

GeoNet reported an earthquake M 4.5 was felt in southern South Island today with the following parameters:

 

O: 05FEB2025 14:20:31 45.1S 167.4E MB=4.5  GEONET Felt with weak intensity in the area south of Te Anau, South Island. 22 reports of felt intensity came from the area east and north of the epicenter including 17 with weak intensity; 5 light; 0 moderate; 0 strong; 0 severe and 0 extreme.

 

 

TROPICAL CYCLONE TALIAH (14S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    TALIAH   2025-02-06  00:00 UT  14.9S  103.8E  080 kts  north of western Australia   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 80 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 15N 77W is off the coast of Central America and Honduras. It is likely that this area of Central America will see enhanced seismicity while Taliah is active.

 

 

TROPICAL CYCLONE VINCE (13S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    VINCE    2025-02-06  00:00 UT  19.3S   82.5E  130 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 130 kts.  It is expected to track to the west and south over the next several days. The antipode at 19N 97W is in Northern Guerrero,  Mexico. Antipodal focusing of energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days.

 

 

An unnamed sub-tropical cyclone is in progress in the South Pacific Ocean. This system is currently centered near 35S 155W and is nearly stationary. This is the antipode of the swarm of moderate earthquakes in the Dodecanese Islands, Greece and may be promoting those earthquakes through antipodal focusing of energy from this storm.

 

A Tropical Cyclone may be forming west of Vanuatu. This system is currently located west of Loyalty Islands at 20S 161E and tracking to the southeast with winds up to 33 kts. It could enhance moderate seismicity in the Loyalty Islands or southern Vanuatu while in the area.

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

1450       0101   0109      0114   C7.9      (February 5, 2025)   2.2E-03  

Ohio M 2.4 01:12 UT

Jan Mayen M t.0, 4.2 01:16 UT

Antofagasta M 4.2 01:18 UT

Tarapaca M 4.4 01:22 UT

 

1500       0312   0315      0322   M1.2      (February 5, 2025)   5.2E-03  

Halmahera M 5.5 03:12 UT

New Zealand M 4.9 03:09 UT M 4.0 03:18 UT

 

 

1510       0709   0715      0723   C2.6      (February 5, 2025)   1.0E-03  

Vanuatu M 4.8 07:17 UT

Guatemala M 5.6 07:01 UT

 

1520       0744   0750      0757   M2.7      (February 5, 2025)   1.2E-02  

Iran M 4.2 07:50 UT

 

1580       1150   1153      1157   C4.0      (February 5, 2025)   1.5E-03  

Dodecanese M 4.2, 4.1 11:53 UT

 

1620       1356   1403      1408   C2.1      (February 5, 2025)   1.5E-03  

Kuril Is. M 4.2 14:04 UT

Sumba M 4.6 14:18 UT

 

1630       1440   1446      1454   C1.9      (February 5, 2025)   1.1E-03  

1640       1503   1511      1513   C4.1      (February 5, 2025)   3.1E-03  

1650       1513   1523      1534   C9.3      (February 5, 2025)   9.5E-03  

Puerto Rico M 3.8 15:47 UT

 

1660       1614   1620      1631   C4.6      (February 5, 2025)   1.0E-03  

Dodecanese Is. M 4.2 16:18 UT

 

1670       1712   1726      1746   C3.7      (February 5, 2025)   6.2E-03  

Dodecanese Is. M 4.8 17:47 UT

 

 

1710       1825   1828      1832   C4.4      (February 5, 2025)   7.0E-04  

Sumbawa M 4.7 18:40 UT

Northern California M 2.2 18:25 UT

 

1720       1902   1908      1914   C1.9      (February 5, 2025)   8.2E-04  

Dodecanese M 5.1 19:09 UT, M 4/4 19:01 UT

Greenland M 4.0 19:28 UT

 

 

1730       1952   2001      2018   C1.8      (February 5, 2025)   3.3E-03  

1740       2018   2024      2029   C1.8      (February 5, 2025)   1.3E-03  

Iram M 4.2 20:24 UT

 

1750       2159   2204      2208   C2.7      (February 5, 2025)   1.1E-03  

1760       2213   2219      2223   C1.8      (February 5, 2025)   1.6E-03  

1810       2223   2242      2252   C2.3      (February 5, 2025)   3.5E-03  

Guatemala M 4.1 22:39 UT

Costa Rica M 4.0 22:35 UT

 

1770       2326   2340      2350   C4.1      (February 5, 2025)   9.0E-04  

 

GEOMAGNETIC FIELD:  active February 7 unsettled February 6 and February 8.  Solar M-flare chance: 85% X-class: 25% proton storm: 25%

 

AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux)     6  4  6 20:00 3 159 191

 

A strong Gamma Ray Burst was recorded by SWIFT on January 29, 2025 at 04:45:09 UT (#250129A).  A preliminary UVOT Magnitude  of V=17.24 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 28, 2025 at 16:22:53 UT (#250128B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 14, 2025 at 07:33:19 UT (#250114A).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 8, 2025 at 10:23:06 UT (#250108B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 3, 2025 at 15:44:17 UT (#250103B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 1, 2025 at 13:22:50 UT (#250101A).  A preliminary UVOT Magnitude of V=18.10 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 29, 2024 at 04:13:05 UT (#241229B).  A preliminary UVOT Magnitude of V>20.0 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 28, 2024 at 03:57:15 UT (#241228A).  A preliminary UVOT Magnitude of V>19.1 was assigned to this GRB.

 

 

 

February 5, 2025

 

A strong earthquake of M 5.7 (NEIC) to M 6.0 (INET) occurred today in the region

of Guatemala. NEIC reported slight damage and intensity VI in Guatemala in Quezaltenango at Genova and V in Almolonga, Parramos, Chimaltenango, La Gomera, Escuintla, Guatemala City, Villa Nueva, San Lucas Sacatepequez, Santa Lucia Milpas, Tapachula, Chiapas, IV throughout Guatemala within about 150 km of the epicenter and III throughout the remainder of Guatemala.

EMSC reported very strong shaking in Guatemala at El Tejar, Solano, Guatemala City, San Cristobal, Boca del Monte, Colonia Valles de Vista Hermosa, and in San Salvador, El Salvador.

A major earthquake hit Guatemala with great damage and  loss of life on February 4, 1976. It ws

reported in the previous issue of this summary in the "HISTORY" section as:

 

" 2  4  9  1 43 1976  15.324  -89.101   5 7.5   Guatemala

 

This was a strike-slip rupture which was felt over an area of at least 100,000 sq. km. on the Motagua fault. The quake killed at least 22,700 and injured more than 75,000. Losses were estimated at $1.1 billion U.S. dollars. Ground breakage occurred over 240 km, the longest rupture in America since the San Francisco quake of 1906. Maximum slippage occurred north of Guatemala City. Landslides were extensive and blocked railroads and communications in the Guatemala highlands. The quake was felt with maximum intensity IX in Mixco and sections of Guatemala City and Gualan. Many communities and towns were completely destroyed in an area around the fault of 1700 sq. km. Buildings near the fault suffered little damage, but those at a distance from the fault were completely destroyed. Many modern "earthquake resistant" structures collapsed. All houses in the towns of San Pedro Sacatepequez, El Jicaro, Sumpango, Tecpan dna Gualan were destroyed." (February 4, 2025)

 

 

The last earthquake located in Guatemala within about 200 km of this epicenter

with M>=5.7 was an M 5.8 on October 25, 2024. The last within this area of M>=6

was an M 6.2 on February 16, 2022. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.2 in Southern Guatemala. NEIC reported it was felt with intensity VIII in Escuintla, Guatmala and VII  in Mazatenango, Suchitepequez and V in San Francisco Zapotitlan with IV in San Pedro la Laguna, Acatenango, Chimaltenango, San Juan la Laguna, Solola, La Gomera, Escuintla and Atitlan, Solola; V in Retalhuleu, a

It was also felt with intensity IV in El Salvador, Chiapas, Mexico, Oaxaca, Mexico, Honduras, and Panama.

The mainshock in Guatemala was preceded by a moderate foreshock to the east in

El Salvador. NEIC reported this event was felt with intensity IV in El Salvador in Delgado and Llopango, San Salvador and III in Antiguo Cuscatlan, San Marcos and La Libertad.

This activity was likely promoted by high tidal stresses with the full moon

 

...

 

 

Today's event is the strongest earthquake within about 150 km of today's epicenter

since an M 6.6 on February 1, 2019 and prior to that an M 6.8 on June 22, 2017.

Forecast 141111 had expected today's enhanced seismicity was likely within

about 100 km around February 17. This activity is at 142-146 degrees from

the strong earthquakes in Indonesia of late December and may have been

promoted by energy from those sources.  This epicenter is also at the fifth node

(72 degrees) from the M 6.8 in the Fox Islands, Aleutians of January 11 and

may have been promoted by energy from that source." (February 15-16, 2022)

 

Today's event of M 5.7-6.0 occurred near local solar midnight and may have

been promoted by tidal stresses which maximize near this hour. It occurred

near the antipode of Tropical Cyclone Vince (13S). In this and previous

issues of this summary it had been anticipated a moderate to large earthquake

could occur in Guatemala (the antipode of TC Vince) at this time as:

 

"TC    VINCE    2025-02-05  00:00 UT  17.8S   90.1E  125 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 125 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 90W is in Northern Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and could help promote a moderate to strong earthquake in that area in the next couple of days." (February 3-4, 2025)

 

This earthquake also follows a volcanic eruption near this epicenter on January 27, 2025. At the time

this summary noted this as:

 

"A strong eruption of Santiaguito Volcano in Guatemala occurred on January 27, 2025. The eruption included red hot rocks and plumes of smoke and ash rising nearly 1200 meters. Santiaguito is a part of the Santa Maria Volcano complex near Quetzaltenango. A major eruption in the area occurred in 1902 killing more than 5000 people." (February 1, 2025)

 

The local seismic network (INETER - Instituto Nicaraguense de Estudios Territoriales and CATAC - Centro de Asesoramiento de Tsunamis en America Central) provided the

following data for this earthquake in Guatemala:

 

 

O: 05FEB2025 07:01:19 13.9N  91.6W ML=6.0  INET   Southern Guatemala   

O: 05FEB2025 07:01:19 13.8N  91.7W ML=5.7  UNAM   Southern Guatemala   

O: 05FEB2025 05:45:03 13.9N  89,8W ML=3.9  INET   Southern Guatemala   

 

Earthquakes also continued in the Dodecanese Islands today. The largest event

in the series thus far occurred today with M 5.3. EMSC reported intense shaking was felt in Greece at Thira, Naxos and Lesser Cyclades, Marpissa, Mykonos, Kamari, Ermoupoli, Patmos among others.

NEIC reported this earthquake was felt near Mesaria, Greece with intensity up to

VII. It was also felt with intensity VI in Thira and V in Andros Nisia Aigaiou Kriti and II-III in Greece at Gazion, mikonos and Ino Siros and in Izmir, Turkey with intensity II.

It may have been felt lightly as far as Slovakia and Poland.

 

NEIC reported an earthquake of M 2.2 in Northern California was felt with moderate intensity up to II-III in the area(s) of Northern California at Eureka and Loleta.

 

NEIC reported an earthquake of M 5.5 in Sulawesi, Indonesia was felt with moderate intensity up to II-III in the area(s) of Sulawesi, Indonesia at Manado and Buayan, Mindanao, Philippines.

BMG reported intensity III in Halmahera at Jailolo, Loloda, Ibu, Sahu, Gallela, Kao, Malifut, Tobelo, Galella, Kao and in Ternate at Pulau.

 

BMG reported the following parameters for this earthquake in Sulawesi:

 

O: 05FEB2025 02:12:31  1.6N 127.1E ML=6.0  BMG    Halmahera            

 

NEIC reported an earthquake of M 2.9 in Central California was felt with moderate intensity up to II-III in the area(s) of Central California at Tracy (IV), Morgan Hill, San Martin and II in Gilroy and Fair Oaks.

EMSC reported brief, minor shaking in Gilroy, California.

 

NEIC reported an earthquake of M 4.6 in Northern Peru was felt with moderate intensity up to II-III in the area(s) of Northern Peru in Cuenca Azuay, Ecuador.

EMSC reported light shaking in Ecuador at Machala and San Joaquin.

 

A moderate quake was reported felt in Tarapaca, Chile today. GUC (CSN) reported it with the following parameters:

 

05-02-2025  09:08  20.32  69.25  102  4.6    IV   Tarapaca at Mamina, Pica, Ujina, Iquique and III in Alto hospicio and La Tirana, Chile.

 

 

 

TROPICAL CYCLONE TALIAH (14S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    TALIAH   2025-02-05  00:00 UT  15.2S  117.4E  080 kts  north of western Australia   

 

Tropical Cyclone Taliah (14S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 80 kts.  It is expected to track to the west and south over the next several days and could have moderate effect on earthquakes in western and central Indonesia in the next several days. The antipode at 15N 73W is in the Caribbean Sea south of Puerto Rico and Hispaniola. It is likely that this area of the Caribbean will see enhanced seismicity while Taliah is active.

 

 

TROPICAL CYCLONE VINCE (13S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    VINCE    2025-02-05  00:00 UT  18.0S   18.1E  115 kts  north of western Australia   

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 115 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 92W is in  Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and energy from this storm could help promote a moderate to strong earthquake in that area in the next couple of days. An M 5.7-6.0 in Guatemala today may have been promoted by energy from TC Vince.

 

 

An unnamed sub-tropical cyclone is in progress in the South Pacific Ocean. This system is currently centered near 35S 155W and is nearly stationary. This is the antipode of the swarm of moderate earthquakes in the Dodecanese Islands, Greece and may be promoting those earthquakes through antipodal focusing of energy from this storm.

 

A Tropical Cyclone may be forming west of Vanuatu. This system is currently located west of Loyalty Islands at 20S 161E and tracking to the southeast with winds up to 33 kts. It could enhance moderate seismicity in the Loyalty Islands or southern Vanuatu while in the area.

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

1150       0007   0022      0028   C7.2      (February 4, 2025)   1.4E-03  

1160       0043   0050      0107   M1.2      (February 4, 2025)   3.0E-03  

1180       0135   0148      0203   M2.6      (February 4, 2025)   2.8E-02  

West Chile Rise M 5.7 01:40 UT

Yukon, Canada M 3.8 01:42 UT

 

1190       0246   0252      0257   C8.5      (February 4, 2025)   5.2E-03  

Ddecanese M 5.1 02:46 UT

 

1200       0331   0340      0345   C7.9      (February 4, 2025)   5.6E-03  

Veracruz M 4.0 03:33 UT

 

1220       0507   0518      0526   M1.2      (February 4, 2025)   9.2E-03  

Dodecanese M 4.0 05:06 UT

Antofagasta M 4.1 05:14 UT

 

1230       0819   0827      0839   C4.1      (February 4, 2025)   1.0E-03  

1240       0839   0847      0856   C6.0      (February 4, 2025)   5.5E-03  

Dodecanese M 4.3 08:56 UT

Jalisco M 4.2 08:56 UT

 

1260       1003   1009      1017   C3.6      (February 4, 2025)   1.4E-03  

1270       1027   1036      1058   C5.7      (February 4, 2025)   9.2E-03  

1280       1109   1121      1126   M4.7      (February 4, 2025)   1.5E-02  

1300       1254   1313      1322   M3.2      (February 4, 2025)   1.9E-03  

Dodecanese M 6.3 13:04 UT

 

1320       1442   1449      1454   C4.2      (February 4, 2025)   2.8E-03  

Peru M 4.4 14:53 UT

 

1330       1533   1536      1540   C3.1      (February 4, 2025)   1.3E-03  

1380       1747   1754      1802   C2.6      (February 4, 2025)   2.1E-03  

So. Italy M 4,3 17:52 UT

 

1390       1855   1909      1918   C3.9      (February 4, 2025)   1.3E-03  

1420       2107   2112      2116   C4.3      (February 4, 2025)   1.8E-03  

1440       2354   0004      0014   C5.9      (February 4, 2025)   2.2E-03  

 

GEOMAGNETIC FIELD:  quiet February 5-6 unsettled February 7.  Solar M-flare chance: 85% X-class: 20% proton storm: 15%

 

AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux)     5  5  4 11:00 4 194 212

 

A strong Gamma Ray Burst was recorded by SWIFT on January 29, 2025 at 04:45:09 UT (#250129A).  A preliminary UVOT Magnitude  of V=17.24 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 28, 2025 at 16:22:53 UT (#250128B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 14, 2025 at 07:33:19 UT (#250114A).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 8, 2025 at 10:23:06 UT (#250108B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 3, 2025 at 15:44:17 UT (#250103B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 1, 2025 at 13:22:50 UT (#250101A).  A preliminary UVOT Magnitude of V=18.10 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 29, 2024 at 04:13:05 UT (#241229B).  A preliminary UVOT Magnitude of V>20.0 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 28, 2024 at 03:57:15 UT (#241228A).  A preliminary UVOT Magnitude of V>19.1 was assigned to this GRB.

 

 

FFA FROM KYUSHU, JAPAN CONTINUE; TC 15P TRIGGERS M 5.5 IN LOYALTY ISLANDS

 

EARTHQUAKE SUMMARY FOR FEBRUARY 3, 2025

 

The earthquake in Kyushu, Japan of M 6.8 of January 13, 2025 still appears to

be promoting far-field aftershocks (FFA). This has been especially clear at 103 degrees from the Kyushu epicenter and has included unusual earthquakes in the eastern U.S. in Maine (M 4.0); New Jersey (M 2.6); southern Texas (M 4.5) among others. Today two earthquakes in Ohio of M 3.2 and M 2.8 hit the state at separate epicenters (they were not classical aftershocks). An M 2.2 also occurred in Missouri today at 103 degrees from Kyushu. These two epicenters in

Ohio and the one in Missouri are both at 103 degrees from Kyushu and appear to have been promoted by energy from that source. The distance 103 degrees has two factors which appear to concentrate energy at that distance. First, it is at the seventh node from large earthquakes (360/7*2 = 103) and second it is the distance at which seismic body waves are concentrated at the surface following reflection and refraction off the core-mantle boundary. These can lead to strong seismic enhancement at this distance following major earthquakes.

 

The M 2.8 near the Ohio-West Virginia border was reported by NEIC to have been widely felt with intensity up to IV at Reno, Ohio and III in Mount Vernon, Logan, Marietta, Newport, Hudson and Middleport and in West Virginia at Williamstown, Waverly, Saint Marys, Belmont, and Mount Pleasant and in Greenup, Kentucky with intensity II.

 

The M 3.1 near Oak Hill, Ohio was felt with intensity up to IV in Maryland, Ohio, West Virginia, III in Kentucky, Ontario, Canada, Florida, and Chicago, Illinois with light intensity as far as 500 km from the epicenter.

This earthquake may have been triggered by SFE from Solar Flare 2104 as

it occurred at the start of that M1.4 flare. Data from SWPC for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 

1100       2104   2112      2116   M1.4      (February 3, 2025)   1.5E-03  

Vancouver M 3.1 21:11 UT

Baja California M 3.2 21:08 UT

Ohio M 3.2 21:04 UT

 

Forecasts 169196 and 169459 had expected the M 2.1 in Missouri was likely at the end of January or in early February, 2025.

 

O:  3FEB2025 09:11:42  36.6N   89.6W MD=2.1  EMSC   SOUTHEASTERN MISSOURI        

P:  7FEB2025 169459    36.0N   89.0W 2.0-3.9 BAAAA  New Madrid area            

P: 30JAN2025 169196    36.0N   90.0W 2.0-3.9 BAAAA  New Madrid area            

 

The earthquakes in Ohio continue seismic activity which accelerated following the Kyushu, Japan event. The event of M 3.2 is the strongest in Ohio since an M 3.3 on December 16, 2024 and an M 3.4 on June 3, 2017. The largest earthquake in

Ohio in the past 35 years was an M 3.6 on February 19, 1995.

 

Forecast 169529 and 169192 had expected events in Ohio were likely at the end of January or early February, 2025.

 

O:  3FEB2025 21:04:52  38.9N   82.6W ML=3.2  EMSC   OHIO                          

P:  5FEB2025 169528    40.0N   84.0W 2.0-4.1 ABAAA  Ohio/Lake Erie             

 

O:  3FEB2025 22:58:24  39.4N   81.4W ML=2.8  EMSC   OHIO                         

P:  5FEB2025 169528    40.0N   84.0W 2.0-4.1 AABAA  Ohio/Lake Erie              

P: 30JAN2025 169192    37.2N   81.9W 2.0-4.3 BBAAA  Kentucky/Tennessee/NC      

 

The second largest earthquake in the world today was an M 5.7-5.9 in the West Chile Rise west of Coquimbo, Chile. This epicenter is at 144 degrees from the M 6.8 of January 13, 2025 in Kyushu. Like the 103 degree distance from  major earthquakes seismic body waves concentrate at 144 degrees on the surface following reflection and refraction off the inner core-outer core boundary and help to trigger strong seismicity at this distance from major quakes. These two distances (103 and 144 degrees) are the boundaries of what is called "the shadow zone" - a distance between 103 and 144 degrees - where little seismic energy returns to the surface following major earthquakes. The energy is reflected and refracted to these two distances. A similar event occurred in the West Chile Rise on January 28, 2025. These are the strongest earthquake within about 200 km of this epicenter since an M 5.9 on May 26, 2023. At the time this summary noted:

 

 

"The second strongest earthquake in the world today was an M 5.7 southeast of Easter Island, South Pacific Ocean. It was preceded by an M 5.2 foreshock about 32 minutes earlier.

 

This epicenter is at 145 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025 - a distance at which seismic energy reflected and refracted off the inner-outer earth core boundary returns to the surface and also at the fifth node (72X2 degrees). Seismicity from strong earthquake often is seen to be enhanced at this distance following those earthquakes.

 

The mainshock was followed by an event of M 4.7 near local solar midnight and preceded by a foreshock about 30 minutes earlier of M 5.2. The last earthquake within about 200 km of this epicenter near Easter Island with M>=5.7 occurred as an M 5.7 on November 25, 2020. At the time this summary noted:

 

"The earthquake of M 5.7 southeast of Easter Island today was the strongest event within about 200 km of this epicenter was an M 5.7-5.8 on April 10, 2010. The only other events of M>=5.7 in the area  occurred as events of M 5.7 on February 13, 1994 and December 7, 2001. No earthquakes of M>5.8 have occurred in this area in the past 30 years." (November 25, 2020)

 

Forecast 169077 had expected this event in mid-January within about 100 km

of this epicenter." (January 28, 2025)

 

O: 28JAN2025 00:29:10  41.1S   90.6W Mw=5.2  EMSC   SOUTHEAST OF EASTER ISLAND

O: 28JAN2025 00:59:48  41.2S   90.3W Mw=5.7  EMSC   SOUTHEAST OF EASTER ISLAND

O: 28JAN2025 06:49:08  41.5S   90.3W MB=4.7  EMSC   SOUTHEAST OF EASTER ISLAND   

P: 16JAN2025 169077    41.0S   91.0W 4.0-5.8 CAAAA  Chile Rise                 

 

Forecast 169609 had expected today's event within about 250 km in the Chile Rise

was likely around February 6, 2025.

 

O:  4FEB2025 01:40:34  38.9S   92.5W MW=5.7  EMSC   WEST CHILE RISE              

P:  6FEB2025 169609    41.0S   91.0W 4.0-5.8 ABAAA  Chile Rise                 

 

An M 4.9 also occurred in the Southern Mid-Atlantic Ridge today. It was not reported felt in this area. The last event within about 250 km of this epicenter with  M>=4.9 was an M 5.4 on February 16, 2023. At the time this summary noted:

 

"The largest earthquake in the world today was an earthquake of M 5.4 which occurred in the Central Mid-Atlantic Ridge today. It was not reported felt in this remote region. This event occurred within minutes of local solar midnight and was probably promoted by strong tidal stresses which maximize near this hour. The last earthquake within about 200 km of this epicenter with M>=5.4 occurred on January 3, 2023 with M 5.4-5.5 and prior to that as an M 6.5 on August 30, 2020." (February 16, 2023)

 

Like the event in the West Chile Rise, this epicenter in the Atlantic is at 147 degrees from the M 7.1 in Kyushu and was probably promoted by energy from that source.

 

Forecast 169595 had expected today's event in the Mid-Atlantic Ridge was likely

within about 250 km of today's epicenter around February 7, 2025.

 

O:  4FEB2025 03:20:21  22.8S   12.8W MB=4.9  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

P:  7FEB2025 169595    20.0S   12.0W 4.0-5.8 BCAAA  So. Mid-Atlantic Ridge     

 

The strongest earthquake in the world today was an M 5.9-6.4 in the area of Talaud, Indonesia. BMG reported this event at M 6.2 was felt with intensity IV in Pulau Morotai and III in Talaud, Halmahera, Pulau and Ternate with II shaking in Minahas, Bitung, Halmahera among others. This is the location of the volcano Mt. Ibu which has been erupting for several weeks as noted in previous issues of this  summary. It is also north of Tropical Cyclone Taliah which formed south of today's epicenter several days ago and was noted in this summary as a possible source of energy for a local moderate earthquake as:  

 

"Tropical cyclones may be forming north of Australia. These include a storm at 14S 103E moving to the west with winds up to 33 kts. and a storm at 14S 120E moving to the west with winds up to 33 kts. Neither of these is strong at this time and are unlikely to enhance regional seismicity at this time. The storm at 120E could see minor enhancement of seismicity at its antipode in the Leeward Islands, Caribbean." (February 1, 2025)

 

Today's earthquake in Talaud and Halmahera Indonesia may have been triggered by SFE from Solar Flares 1100 and 1110 as it occurred at the peak of flare 1110. Data for these flares from SWPC follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 

1100       2104   2112      2116   M1.4      (February 3, 2025)   1.5E-03  

1110       2124   2135      2144   C5.9      (February 3, 2025)   6.2E-03  

Halmahera M 5.9 21:35 UT

Sumba M 4.7 21:30 UT

 

Today's earthquake in Halmahera is the strongest within about 200 km of today's epicenter since an M 6.6 on April 9, 2024. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.6 in Talaud, Indonesia. NEIC reported it was felt with intensity up to IV in Tobelo, Indonesia. PHIVOLCS  reported this earthquake of M  6.5 in Talaud, Indonesia was felt with intensity up to II in the area(s) of   Saranagani, City of Davao at Malungon and Glan.

BMG reported intensity IV in Ibu, Halmahera, Barat, Maluu; III in Kat Sangihe, Talaud, Siau, Halmeahera, Pulau Morotai, Tidore and Ternate among others. This is the strongest earthquake in the Molucca Sea and Talaud within about 200 km of this epicenter since an M 7.0 on January 18, 2023 and may be an aftershock of that event." (April 9, 2024)

 

This epicenter is located at 101 degrees from the M 7.0 off Northern California and may have been promoted by energy from that source.

 

Forecast 169365 had expected today's event within about 100 km was likely around February 5, 2025.

 

 

O: 03FEB2025 22:21:07   3.0N  128.2E ML=4.4  EMSC   HALMAHERA, INDONESIA

O:  3FEB2025 21:35:52   3.0N  128.2E MW=6.2  BMG    NORTH OF HALMAHERA, INDONESIA

O:  3FEB2025 21:35:52   3.0N  128.2E MW=5.9  EMSC   NORTH OF HALMAHERA, INDONESIA

P:  5FEB2025 169365     4.0N  128.0E 4.0-5.4 AAAAA  Halmahera                   

 

As Tropical Cyclone 15P passed through the Loyalty Islands today, it appears to have triggered an M 5.5-5.8 earthquake in the Loyalty Islands. The eye of this cyclone was at the epicenter of this earthquake when it occurred. This earthquake may also have been promoted by tidal stresses as it occurred within minutes of local solar midnight, a time when such stresses maximize.

 

"TC    15P      2025-02-04  00:00 UT  22.4S  171.2E  045 kts  Southern Vanuatu, Loyalty Is.     

 

Tropical Cyclone 15P continued today in the area of Vanuatu and the Loyalty Islands winds up to 45 kts.  This system is currently tracking to the southeast with winds up to 55 kts. It could help promoted aftershocks in southern Vanuatu and the Loyalty Islands as it passes through the area over the next several days." (February 3-4, 2025)

 

The last earthquake in the Loyalty Islands of M>=5.5 was an M 5.7 on April 19, 2024. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 5.7 in the Loyalty Islands. It was not reported felt in this remote area.  This event occurred near local solar midnight near the time of the full moon at a longitude which was expected to see maximum tidal stresses at this time. It was probably promoted by enhanced tidal stresses. The last earthquake with M>=5.5 in the Loyalty Islands was an M 5.8 on December 24, 2023. At the time this summary noted in this regard:

 

"The strongest earthquake in the world today was an M 5.7 in the region of the Loyalty Islands and New Caledonia. NEIC reported it was felt with intensity up to IV in the epicentral zone. This is probably an aftershock of the M 7.1 in southern Vanuatu of December 8, the strongest to date." (December 17, 2023, April 19, 2024)

 

 

 

O:  3FEB2025 13:02:28  22.8S  171.2E MW=5.5  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P:  4FEB2025 169590    22.0S  171.0E 4.0-5.6 AAAAA  Loyalty Islands            

 

The series of moderate earthquakes in the Dodecanese Island, Greece continued to intensify in number and magnitude today. The strongest of these in the past 24 hours was an M 5.1 and M 5.0 and M 4.9 near Oia, Greece. NEIC reported they were felt with intensity up to VII in Kamarion, Kiklades, Greece and in Iraklion, Greece at Iraklion and Gazion, Nexos, Kiklades, Greece IV in Paros, with lesser shaking (III) in Emborion and Ino Siros, Mesaria. EMSC reported moderate earthquakes in the Dodecanese Islands today were felt with moderate to strong

intensity in Greece at Thira, Mesaria, Marmara, Ermoupoli, Heraklion, Agops Myronas, Adelianos Kampos, Chania, Glyfada, Vrilissia, Amarousio, Nea Chalkidona, Piraeus, Fyli and in Turkey at Irmak among others. NEIC reported earthquakes of M 5.1, 4.9 in the Dodecanese Islands, Greece were felt with moderate intensity up to II-III in the area(s) of Greece at Kamarion, Kiklades.

 

This series of earthquake in the Dodecanese Islands is antipodal to a strong South Pacific Ocean Storm. This unnamed storm has its current eye at 35S 155E according to maps of cloudiness at JTWC. A second storm (15P) is tracking towards the same location over the next week. If the focused energy from these storms is helping drive the activity in the Dodecanese Island, the current swarm could continue for at least another week and may be independent of local volcanism near Santorini.

 

This activity is at 142 degrees from the M 7.4 in Vanuatu of December 17, 2024 and at the seventh node (51.4 degrees) from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from those sources.

 

Forecast 169439  had expected this activity in the Dodecanese Islands was  likely at the beginning of February, 2025. Following is a listing of events of M>=4 in the area in the past 24 hours, but many more at lesser magnitude have also occurred in the area.

         

O: 04FEB2025 02:50:21  36.5N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:09:06  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:36:23  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:42:48  36.6N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:45:08  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:59:02  36.6N   25.6E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:10:19  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:13:08  36.6N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:17:24  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:26:29  36.6N   25.7E Mw=4.9  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:56:54  36.6N   25.5E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 09:27:17  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 09:29:43  36.6N   25.7E Mw=5.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 11:21:00  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 12:38:49  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 13:52:51  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 20:39:17  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 01:19:38  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 01:27:10  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 02:46:08  36.6N   25.7E ML=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 03:03:53  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 05:05:36  36.6N   25.7E Mw=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 05:30:58  36.6N   25.7E Mw=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:09:14  36.6N   25.7E ML=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:37:57  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:55:19  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 09:48:59  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 11:50:48  36.7N   25.6E Mw=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 12:10:09  36.7N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 12:17:41  36.7N   25.7E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 13:05:05  36.7N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 17:45:03  36.7N   25.7E ML=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 20:30:33  36.7N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:53:26  36.7N   25.7E ML=4.7  EMSC   DODECANESE ISLANDS, GREECE

O:  3FEB2025 20:19:40  36.5N   25.6E MB=4.9  EMSC   DODECANESE ISLANDS, GREECE   

P:  4FEB2025 169439    36.0N   26.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

 

The strongest earthquake in the U.S. or Canada today occurred in the Bering Strait of northwestern Alaska with M 4.6-5.0. This event and an M 4.0 aftershock were reported by NEIC to have been lightly felt at Wales, Alaska.

 

This is the strongest earthquake in the Bering Sea, Alaska within about 250 km  of this epicenter since an M 5.3 on February 21, 2012 and an M 5.2 on September 25, 2009. At the time this summary noted in this regard:

 

 

"The strongest earthquake in the world today was an M 5.4-5.6 in the Bering Strait region off Alaska's northwest coast. It may have been felt in the Point

Hope and Kotzebue regions on the coast of Alaska but there have been no reports of damage associated with this earthquake. This earthquake was likely promoted by the new moon tidal alignment which was maximized in this region today as noted in our summary yesterday. The earthquake occurred near local midnight when tides were the highest. The last moderate earthquake in the Bering Strait, an M 4.4 on August 8, 2010 occurred a day before  the New Moon as did an M 4.3 on June 20, 2009. Today's earthquake is the strongest recorded in the Bering Strait region in at least 22 years. We have noted this tidal relation for the area in the past." (February 21, 2012) 

 

 

Forecast 169564 had expected enhanced seismicity in this region was likely in early February within about 150 km of this epicenter.

 

O:  3FEB2025 06:36:04  65.4N  169.1W MB=5.0  ANSS   BERING STRAIT, ALASKA        

O:  3FEB2025 06:36:08  65.4N  168.6W MW=4.6  EMSC   BERING STRAIT                

O: 04FEB2025 04:52:06  65.4N  168.5W mb=4.1  EMSC   BERING STRAIT

P:  2FEB2025 169564    67.1N  167.9W 3.2-5.3 AAAAA  Northern Alaska            

P:  2FEB2025 169564    67.1N  167.9W 3.2-5.3 ABAAA  Northern Alaska            

 

Two events, each of M 4.0 appear to have been promoted by tropical cyclones north of Australia today. These occurred in Vera Cruz, Mexico and the Dominican Republic at the exact antipode of Tropical Cyclones Taliak and Vince. This summary had expected at this activity at the antipode in this and previous issues as:

 

"Tropical Cyclone Taliak (14S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 105 kts.  It is expected to track to the west and south over the next several days. The antipode at 15N 69W is in the Caribbean Sea south of Puerto Rico and Hispaniola. It is likely that this area of the Caribbean will see enhanced seismicity while Taliak is active.

 

... and

 

Tropical Cyclone Vince (13S) continued today in the area of the south Indian Ocean north of western Australia with winds up to 125 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 90W is in Northern Guatemala, Chiapas, Mexico and Vera Cruz, Mexico and could help promote a moderate to strong earthquake in that area in the next couple of days." (February 3-4, 2025)

 

O:  4FEB2025 03:33:43  17.5N   94.7W ML=4.0  EMSC   VERACRUZ, MEXICO             

P:  3FEB2025 169401    17.0N   95.0W 3.5-5.4 AAAAA  Chiapas, Mexico            

 

O:  3FEB2025 11:48:13  19.1N   69.7W ML=4.0  EMSC   DOMINICAN REPUBLIC           

P:  5FEB2025 169424    20.0N   71.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O:  3FEB2025 16:46:15  28.5N   87.5E ML=4.0  EMSC   WESTERN XIZANG               

P:  3FEB2025 169500    28.0N   87.0E 3.8-5.3 AAAAA  Xizang                     

 

O:  4FEB2025 06:00:19  37.2N   71.3E MB=4.5  EMSC   HINDU KUSH REGION, AFGHANISTAN

P:  3FEB2025 169454    36.0N   71.0E 3.8-5.2 ABAAA  Hindu Kush/Pakistan        

 

O:  3FEB2025 20:33:01  40.7N   77.8E MB=4.1  EMSC   SOUTHERN XINJIANG, CHINA     

P:  3FEB2025 169512    40.0N   78.0E 4.0-5.4 AAAAA  Kirgizstan/Xinjiang        

 

O:  3FEB2025 07:56:36  53.7N  161.7E MB=4.5  EMSC   OFF EAST COAST OF KAMCHATKA  

P:  4FEB2025 169548    54.0N  160.0E 4.0-5.4 AABAA  E. of Kamchatka            

 

No significant (M>=5) or unusual earthquakes were reported in Asia today.

 

INDONESIA AND PHILIPPINES

 

O: 03FEB2025 22:21:07   3.0N  128.2E ML=4.4  EMSC   HALMAHERA, INDONESIA

O:  3FEB2025 21:35:52   3.0N  128.2E MW=5.9  EMSC   NORTH OF HALMAHERA, INDONESIA

P:  5FEB2025 169365     4.0N  128.0E 4.0-5.4 AAAAA  Halmahera                  

 

O:  3FEB2025 21:35:52   3.0N  128.2E MW=5.9  EMSC   NORTH OF HALMAHERA, INDONESIA

P:  5FEB2025 169365     4.0N  128.0E 4.0-5.4 AAAAA  Halmahera                  

 

O:  3FEB2025 15:43:06   3.1N   97.1E ML=4.2  EMSC   NORTHERN SUMATRA, INDONESIA  

P:  1FEB2025 169369     4.0N   96.0E 4.0-6.6 AAAAA  Nicobar Islands            

 

O:  3FEB2025 19:17:37   3.3S  131.1E ML=4.1  EMSC   CERAM SEA, INDONESIA         

P:  2FEB2025 169396     3.0S  134.0E 4.0-5.4 AACAA  West Irian, PNG            

 

O:  3FEB2025 11:10:08   3.6S  140.7E ML=4.1  EMSC   PAPUA, INDONESIA             

P:  7FEB2025 169389     4.0S  142.0E 4.0-5.4 BABAA  Papua New Guinea           

 

O:  3FEB2025 18:12:06   5.6S  130.9E ML=4.1  EMSC   BANDA SEA                    

P:  2FEB2025 169374     6.0S  128.0E 4.0-5.4 AACAA  Banda Sea                   

 

O:  3FEB2025 06:47:20   8.8N  126.8E ML=4.0  EMSC   MINDANAO, PHILIPPINES        

P:  7FEB2025 169365     8.0N  127.0E 4.0-5.6 BAAAA  Halmahera                  

 

O: 03FEB2025 20:16:28  10.4S  120.3E ML=4.2  EMSC   SUMBA REGION, INDONESIA

O:  3FEB2025 21:30:51  10.6S  120.3E MB=4.7  EMSC   SUMBA REGION, INDONESIA      

P:  5FEB2025 169395     8.0S  118.0E 4.0-5.4 ACCAA  Sumbawa Island area        

 

O:  4FEB2025 05:54:48  11.0N  125.6E ML=4.3  EMSC   SAMAR, PHILIPPINES           

P:  8FEB2025 169409    10.0N  126.0E 3.5-5.1 AAAAA  Luzon, Philippines         

P: 28JAN2025 169137    11.0N  125.0E 3.5-5.0 CAAAA  Luzon, Philippines         

 

 

CENTRAL AND SOUTH AMERICA

 

O:  3FEB2025 16:03:11   1.9S   78.0W ML=3.6  EMSC   ECUADOR                       

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 BAAAA  Ecuador                    

 

O:  4FEB2025 07:45:13   3.6S   80.0W MB=4.6  EMSC   PERU-ECUADOR BORDER REGION   

P:  6FEB2025 169379     2.0S   78.0W 4.0-5.4 ABBAA  Ecuador                    

 

NEIC reported an earthquake of M 4.6 on Peru-Ecuador border  was felt with moderate intensity up to II-III in the area(s) of on Peru-Ecuador border in Cnenca Azuay, Ecuador.

 

O:  3FEB2025 08:24:40  11.6N   87.3W ML=4.1  EMSC   NEAR COAST OF NICARAGUA       

P:  4FEB2025 169414    12.0N   88.0W 3.5-5.5 AAAAA  Nicaragua                  

 

O:  3FEB2025 10:26:11  12.9N   88.8W ML=4.0  EMSC   OFFSHORE EL SALVADOR         

P:  4FEB2025 169414    12.0N   88.0W 3.5-5.5 AAAAA  Nicaragua                  

 

O: 03FEB2025 07:37:10  15.4N   93.0W ML=3.9  EMSC   CHIAPAS, MEXICO

O:  3FEB2025 07:16:50  14.9N   92.8W ML=4.1  EMSC   OFFSHORE CHIAPAS, MEXICO     

P:  4FEB2025 169405    14.0N   92.0W 3.5-5.5 AAAAA  Guatemala                  

 

O:  3FEB2025 15:52:40  15.4N   94.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P:  5FEB2025 169401    16.0N   94.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O:  4FEB2025 03:33:43  17.5N   94.7W ML=4.0  EMSC   VERACRUZ, MEXICO             

P:  3FEB2025 169401    17.0N   95.0W 3.5-5.4 AAAAA  Chiapas, Mexico            

 

O:  3FEB2025 22:36:37  18.1N   74.2W ML=3.2  EMSC   HAITI REGION                 

O:  3FEB2025 11:48:13  19.1N   69.7W ML=4.0  EMSC   DOMINICAN REPUBLIC           

P:  5FEB2025 169424    20.0N   71.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O:  4FEB2025 05:14:13  25.0S   70.9W ML=4.1  EMSC   OFFSHORE ANTOFAGASTA, CHILE  

P:  6FEB2025 169588    28.0S   71.0W 4.0-5.8 ACAAA  Coast Central Chile        

 

O:  3FEB2025 09:35:02  30.7S   71.4W ML=3.6  EMSC   COQUIMBO, CHILE              

P:  3FEB2025 169599    30.0S   70.0W 4.0-6.5 AABAA  Coast Central Chile        

 

 

AFRICA AND EUROPE

 

O:  3FEB2025 08:01:04  39.0N   24.2E MW=4.6  EMSC   AEGEAN SEA                   

P:  4FEB2025 169531    40.0N   26.0E 3.0-5.3 AABAA  Romania/NW Turkey          

 

O: 04FEB2025 02:50:21  36.5N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:09:06  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:36:23  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:42:48  36.6N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:45:08  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 07:59:02  36.6N   25.6E mb=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:10:19  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:13:08  36.6N   25.8E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:17:24  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:26:29  36.6N   25.7E Mw=4.9  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 08:56:54  36.6N   25.5E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 09:27:17  36.6N   25.7E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 09:29:43  36.6N   25.7E Mw=5.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 11:21:00  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 12:38:49  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 13:52:51  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 20:39:17  36.6N   25.7E mb=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 01:19:38  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 01:27:10  36.6N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 02:46:08  36.6N   25.7E ML=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 03:03:53  36.6N   25.7E mb=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 05:05:36  36.6N   25.7E Mw=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 05:30:58  36.6N   25.7E Mw=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:09:14  36.6N   25.7E ML=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:37:57  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:55:19  36.6N   25.6E ML=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 09:48:59  36.7N   25.8E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 11:50:48  36.7N   25.6E Mw=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 12:10:09  36.7N   25.7E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 12:17:41  36.7N   25.7E Mw=5.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 13:05:05  36.7N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 17:45:03  36.7N   25.7E ML=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 20:30:33  36.7N   25.6E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 04FEB2025 06:53:26  36.7N   25.7E ML=4.7  EMSC   DODECANESE ISLANDS, GREECE

O:  3FEB2025 20:19:40  36.5N   25.6E MB=4.9  EMSC   DODECANESE ISLANDS, GREECE   

P:  4FEB2025 169439    36.0N   26.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

O:  3FEB2025 09:45:06  34.6N    9.6E MW=4.8  EMSC   TUNISIA                      

P:  1FEB2025 169457    35.0N    8.0E 3.5-5.0 AABAA  Morocco/Spain              

 

NEIC reported an earthquake of M 4.8 in Tunisia  was felt with moderate intensity up to VII in the area(s) of Tunisia at Meknassy Sidi Bu Zayd.

 

O:  3FEB2025 09:32:20  26.9S   26.8E ML=3.0  EMSC   SOUTH AFRICA                 

P:  4FEB2025 169592    27.0S   27.0E 3.0-4.5 AAAAA  Rep. South Africa          

 

O: 04FEB2025 01:40:20  35.4N    3.6W ML=2.2  EMSC   STRAIT OF GIBRALTAR

O:  3FEB2025 22:30:52  35.4N    3.6W ML=2.2  EMSC   STRAIT OF GIBRALTAR          

P:  4FEB2025 169458    37.0N    6.0W 3.5-5.1 ABBAA  Morocco/Spain              

 

SOUTHWEST PACIFIC

 

O:  3FEB2025 10:31:58  20.4S  174.8W MB=5.1  EMSC   TONGA                        

P:  4FEB2025 169596    21.0S  175.0W 4.0-5.6 AAAAA  Tonga Islands              

 

O:  3FEB2025 13:02:28  22.8S  171.2E MW=5.5  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P:  4FEB2025 169590    22.0S  171.0E 4.0-5.6 AAAAA  Loyalty Islands            

 

OCEAN RIDGES

 

O:  4FEB2025 03:20:21  22.8S   12.8W MB=4.9  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

P:  7FEB2025 169595    20.0S   12.0W 4.0-5.8 BCAAA  So. Mid-Atlantic Ridge     

 

O:  4FEB2025 01:40:34  38.9S   92.5W MW=5.7  EMSC   WEST CHILE RISE              

P:  6FEB2025 169609    41.0S   91.0W 4.0-5.8 ABAAA  Chile Rise                 

 

 

ZEALANDIA AND AUSTRALIA REGION

 

No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia

today.

 

JAPAN AND KURIL ISLANDS

 

O:  3FEB2025 19:14:58  28.7N  130.9E MW=5.4  EMSC   RYUKYU ISLANDS, JAPAN        

P:  1FEB2025 169433    29.0N  129.0E 4.0-5.5 AABAA  Ryukyu Islands             

 

O:  3FEB2025 07:25:30  37.6N  141.6E ML=4.3  EMSC   NEAR EAST COAST OF HONSHU, JAP

P:  6FEB2025 169467    37.0N  142.0E 4.0-5.5 BAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 03FEB2025 21:08:54  31.1N  115.8W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 03FEB2025 07:38:43  31.6N  115.1W ML=3.6  EMSC   BAJA CALIFORNIA, MEXICO

O:  3FEB2025 19:51:14  30.9N  115.0W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

P:  3FEB2025 169471    31.6N  114.6W 2.0-4.3 AAAAA  SW U.S.A                    

 

O:  4FEB2025 04:57:02  32.1N  115.9W ML=2.5  EMSC   BAJA CALIFORNIA, MEXICO      

P:  3FEB2025 169473    32.0N  116.3W 2.5-4.8 AAAAA  So. California             

 

O:  3FEB2025 09:33:37  34.5N  118.0W ML=2.2  EMSC   SOUTHERN CALIFORNIA           

P:  3FEB2025 169478    33.9N  118.3W 2.5-4.7 AAAAA  So. California             

 

O:  4FEB2025 01:08:54  36.0N  120.5W MD=2.2  EMSC   CENTRAL CALIFORNIA           

P:  5FEB2025 169445    36.6N  120.7W 2.5-4.8 AAAAA  Central California         

 

O:  3FEB2025 14:15:52  36.1N  117.4W ML=2.0  EMSC   CENTRAL CALIFORNIA           

P:  4FEB2025 169484    35.9N  117.7W 2.5-4.6 AAAAA  So. California             

 

O:  3FEB2025 17:10:03  37.9N  122.1W MD=2.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P:  2FEB2025 169447    37.8N  122.6W 2.5-4.6 AAAAA  Central California         

 

NEIC reported an earthquake of M 2.2 in San Francisco, California was felt with moderate intensity up to II-III in the area(s) of San Francisco, California at Oakland and II in Alamo, Pleasant Hill, Lafayette, Walnut Creek.

 

O:  4FEB2025 00:55:02  40.3N  124.9W ML=3.4  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  4FEB2025 169449    39.7N  123.7W 2.5-4.6 AAAAA  Central California         

 

NEIC reported an earthquake of M 3.4 off the coast of northern California   was felt with moderate intensity up to II-III in the area(s) of  northern California at Petrolia and Fortuna.

 

 

ALASKA

 

O:  3FEB2025 16:35:34  51.5N  171.8W ML=3.6  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P:  7FEB2025 169546    52.1N  171.3W 3.5-4.9 BAAAA  Andreanoff Isls, Aleutians 

 

O:  4FEB2025 07:51:15  55.3N  155.2W MB=4.6  EMSC   SOUTH OF ALASKA              

P:  9FEB2025 169543    54.8N  158.7W 3.5-5.0 BABAA  Alaska Peninsula           

 

O:  3FEB2025 06:36:04  65.4N  169.1W MB=5.0  ANSS   BERING STRAIT, ALASKA        

O:  3FEB2025 06:36:08  65.4N  168.6W MW=4.6  EMSC   BERING STRAIT                

O: 04FEB2025 04:52:06  65.4N  168.5W mb=4.1  EMSC   BERING STRAIT

P:  2FEB2025 169564    67.1N  167.9W 3.2-5.3 AAAAA  Northern Alaska            

P:  2FEB2025 169564    67.1N  167.9W 3.2-5.3 ABAAA  Northern Alaska            

 

NEIC reported an earthquake of M 4.0 in the Bering Strait, Alaska was felt with moderate intensity up to II-III in the area(s) of the Bering Strait, Alaska at Wales, Alaska.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 03FEB2025 21:10:44  51.4N  130.6W MB=3.1  ECAN OF PORT HARDY, BC  

O:  3FEB2025 21:10:44  51.4N  130.6W ML=3.1  EMSC   HAIDA GWAII REGION           

P:  4FEB2025 169547    50.5N  130.4W 3.0-5.3 AAAAA  British Colombia           

 

ROCKY MOUNTAINS REGION

 

O: 03FEB2025 13:34:57  31.7N  104.3W ML=2.8  EMSC   WESTERN TEXAS

O:  3FEB2025 13:35:58  31.7N  104.3W ML=2.2  EMSC   WESTERN TEXAS                

P:  1FEB2025 169472    31.6N  103.6W 2.0-4.3 AAAAA  SW U.S.A                   

 

O:  3FEB2025 20:36:20  32.8N  100.7W ML=2.8  EMSC   WESTERN TEXAS                

P:  1FEB2025 169472    31.6N  103.6W 2.0-4.3 AABAA  SW U.S.A                   

 

O:  4FEB2025 06:01:40  41.6N  109.9W ML=3.1  EMSC   WYOMING                      

P:  7FEB2025 169504    41.9N  108.7W 2.0-3.9 BAAAA  Colorado area              

P: 29JAN2025 169235    41.9N  108.7W 2.0-3.9 BAAAA  Colorado area              

 

EASTERN U.S./CANADA

 

O: 03FEB2025 10:43:20  35.1N   97.6W ML=2.0  EMSC   OKLAHOMA

O:  3FEB2025 10:17:12  35.1N   97.6W ML=2.4  EMSC   OKLAHOMA                     

P:  4FEB2025 169492    34.0N   97.0W 2.0-4.3 ABAAA  Southern Plains            

P: 31JAN2025 169223    36.0N   97.0W 2.0-4.4 BAAAA  Southern Plains            

 

O:  3FEB2025 09:11:42  36.6N   89.6W MD=2.1  EMSC   SOUTHEASTERN MISSOURI        

P:  7FEB2025 169459    36.0N   89.0W 2.0-3.9 BAAAA  New Madrid area            

P: 30JAN2025 169196    36.0N   90.0W 2.0-3.9 BAAAA  New Madrid area             

 

O:  3FEB2025 21:04:52  38.9N   82.6W ML=3.2  EMSC   OHIO                         

P:  5FEB2025 169528    40.0N   84.0W 2.0-4.1 ABAAA  Ohio/Lake Erie             

 

O:  3FEB2025 22:58:24  39.4N   81.4W ML=2.8  EMSC   OHIO                          

P:  5FEB2025 169528    40.0N   84.0W 2.0-4.1 AABAA  Ohio/Lake Erie             

P: 30JAN2025 169192    37.2N   81.9W 2.0-4.3 BBAAA  Kentucky/Tennessee/NC      

 

O: 03FEB2025 20:26:27  49.3N   68.1W MB=2.9  ECAN OF BAIE-COMEAU, QC, FELT  

O:  3FEB2025 20:26:27  49.3N   68.1W ML=2.9  EMSC   ST. LAWRENCE VALLEY REG., CANA

P:  4FEB2025 169505    49.0N   66.0W 2.0-4.2 AABAA  E. of Maine                

 

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

MODERATELY STRONG QUAKE SHAKES COQUIMBO, CHILE

 

EARTHQUAKE SUMMARY FOR FEBRUARY 2, 2025

 

 

The strongest earthquake in the world today was a moderately large M 5.1 (NEIC, EMSC) to 5.4 (SC4) in the region of Coquimbo, Chile. NEIC reported it was felt in La Ligua, Valparaiso 200 km from the epicenter. EMSC reported this event caused lots of noise and moderate shaking in Coquimbo with shaking for about 10-15 seconds at La Serena, Chile. CSN (GUC) reported this earthquake was felt with intensity V in  Coquimbo at Monte Patria, Andacollo; IV in Combarbala, Ovalle, Punitaqui, Rio Hurtado, Illapel, Paiguano, Vicuna, and III in Los Vilos, Coquimbo, La Serena, La Higuera, Chile. The last earthquake of M>=5.1 in Coquimbo Chile within about 200 km of today's epicenter occurred on December 30, 2024 (with the last new moon) with M 5.5, but the last of significantly larger magnitude was an M 6.2 on September 6, 2023. At the time this summary noted:

 

 

"Two earthquakes of M 5.5 each were located within about a minute today in the area of Coquimbo, Chile. These were followed by a continuing series of moderate aftershocks and may lead to a stronger regional event. NEIC reported they were felt with intensity IV in La Serena, Coquimbo and Vicuna. EMSC reported moderate shaking in La Serena, Paiguano and Valparaiso. These events occurred near local solar midnight and were probably promoted by strong tidal stresses with today's new moon which maximized near this hour." (December 30, 2024)

 

and

 

"The strongest earthquake in the world today was an M 6.2 in the Coquimbo, Chile area. NEIC reported it was felt with maximum intensity VI in Coquimbo and La Serena and V in Ovalle, Coquimbo with III in Vicuna. In Valparaiso, Chile it was felt with intensity II-III in La Ligua, Quillota, Vina del Mar, Valparaiso, Villa Alemana, and in Santiago, Chile. When a series of smaller foreshocks hit the region on September 4, this summary noted in this regard:

 

"A moderate earthquake of M 4.1 also was recorded near Coquimbo, Chile today.

While other areas of Chile have been active in recent weeks, Coquimbo has been relatively quiet. Today's M 4.1 is the strongest in that area in more than a month - since an M 4.5 occurred on August 3, 2023. The only other such event in the region in the past two months was an M 4.7 about 150 km north of today's epicenter on July 27. Both these occurred at full and new moon alignments. Today's event occurred near local solar midnight near the full moon and all of these may be tidally reinforced." (September 4, 2023)

 

An earthquake of M 5.8 hit this region of Coquimbo on May 2, 2021 but the last event of M>=6.2 in Coquimbo within about 200 km of today's epicenter was  an M 6.3 exactly three years ago on September 6, 2020 but the last event in the area of significantly larger magnitude was an M 6.7 on January 20, 2019. At that time this summary noted in regard to the history of the area:

 

 

"The last earthquake in the Coquimbo area of central Chile within about 200 km  of today's M 6.7 with M>=6.7 occurred on November 11, 2015 with M 6.9. This was a regional aftershock about 200 km north of a great M 8.3 in the Coquimbo area which  occurred September 16, 2015." (January 20, 2019, September 6, 2023)

 

Today's M 5.1-5.4 quake in Coquimbo may have been promoted by SFE from solar flare 480 which began about the time of this earthquake. SWPC data for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 480       1358   1404      1408   M5.1      (February 2, 2025)   1.2E-02  

Coquimbo M 5.1-5.4 13:54 UT

 

 

It is worth noting that this event in Coquimbo, Chile had been anticipated in

the previous issues of this summary, for example:

 

 

"The geomagnetic field was at its most disturbed levels in nearly a month. The planetary AP index was 27 with maximum KP reaching 7 about 15:00-21:00 UT. These are the highest AP levels since January 4, 2025. Global seismicity normally takes a couple of days to reflect the new geomagnetic regime. For example an M 7.1 in Tibet on January 7, 2025 is the strongest earthquake to date in the year 2025. A strong earthquake in the world, possibly in South America, is considered likely centering on February 5, 2025. The coast of South America remains under seismic watch conditions called yesterday by this summary. The most likely locale for a strong event at this time appears to be Coquimbo, Chile and/or San Juan, Argentina. This could be promoted by a strong solar flare or the current geomagnetic storm." (February 2, 2025)

 

This epicenter is at 103-105 degrees from the M 7.4 in Vanuatu of December 17, 2024 and may have been promoted by energy from that source.

 

Forecast 169339 had expected this activity in Central Chile within about 100 km

of this epicenter was likely at the end of January, 2025.

 

O:  2FEB2025 13:54:15  30.7S   71.5W MB=5.1  EMSC   COQUIMBO, CHILE              

O:  2FEB2025 13:54:15  30.7S   71.4W MB=4.8  GUC    COQUIMBO, CHILE              

O:  2FEB2025 13:54:15  30.7S   71.5W MB=5.4  SC4    COQUIMBO, CHILE              

P: 24JAN2025 169339    30.0S   71.0W 4.0-5.7 CAAAA  Coast Central Chile        

P: 24JAN2025 169339    32.0S   70.0W 4.0-5.8 CBAAA  Central Chile              

 

The strongest earthquake in the U.S. or Canada today occurred in the Bering

Strait of northwestern Alaska with M 5.0. This is the strongest earthquake in the Bering Sea, Alaska within about 250 km of this epicenter since an M 5.3 on February 21, 2012 and an M 5.2 on September 25, 2009. At the time this summary noted in this regard:

 

 

"The strongest earthquake in the world today was an M 5.4-5.6 in the Bering Strait region off Alaska's northwest coast. NEIC reported it was felt with intensity III in Wales, Alaska. It may have been felt in the Point Hope and Kotzebue regions on the coast of Alaska but there have been no reports of damage associated with this earthquake. This earthquake was likely promoted by the new moon tidal alignment which was maximized in this region today as noted in our summary yesterday. The earthquake occurred near local midnight when tides were the highest. The last moderate earthquake in the Bering Strait, an M 4.4 on August 8, 2010 occurred a day before  the New Moon as did an M 4.3 on June 20, 2009. Today's earthquake is the strongest recorded in the Bering Strait region in at least 22 years. We have noted this tidal relation for the area in the past." (February 21, 2012) 

 

 

Forecast 169564 had expected enhanced seismicity in this region was likely in early February.

 

O:  3FEB2025 06:36:08  65.4N  168.7W MB=5.0  EMSC   BERING STRAIT                

O:  3FEB2025 06:36:04  65.4N  169.1W MB=5.0  ANSS   BERING STRAIT, ALASKA        

P:  2FEB2025 169564    67.1N  167.9W 3.2-5.3 ABAAA  Northern Alaska            

 

Nearly as large as the Bering Strait earthquake in Alaska, an M 4.4-4.9 earthquake occurred in the Haida Gwaii area of British Columbia today. The last event within about 100 km of this epicenter with M>=4.4 occurred on December 25, 2024 with M 4.9. A strong event of M 6.5 hit the area on September 15, 2024 and was noted in this summary at the time as:

 

"The last earthquake of M>=5.9  within about 100 km of today's epicenters in Vancouver was an M 6.3 on December 25, 2019, part of a series of events in the area that started with two of M 6.0 on December 23, 2019." (September 16, 2024)

 

Forecasts 169274 and 169547 had expected a moderate earthquake in this region was likely iin late January or early February 2025.

 

O:  3FEB2025 00:25:37  51.6N  130.8W MB=4.4  EMSC   HAIDA GWAII REGION           

O:  3FEB2025 00:25:32  51.3N  131.2W MB=4.9  ECAN SSE OF DAAJING GIIDS, BC       

P:  4FEB2025 169547    50.5N  130.4W 3.0-5.3 AAAAA  British Colombia           

P: 28JAN2025 169274    50.6N  130.5W 3.0-5.4 BAAAA  British Colombia           

 

The series of moderate earthquakes in the Dodecanese Island, Greece continued to intensify in number and magnitude today. The strongest of these in the past 24 hours was an M 5.0 near Oia, Greece. NEIC reported it was felt with intensity V in Nexos, Kiklades, Greece IV in Paros, with lesser shaking (III) in Emborion and Ino Siros, Mesaria. EMSC reported moderate earthquakes in the Dodecanese Islands today were felt with moderate to strong intensity in Greece at Thira, Mesaria, Marmara, Ermoupoli, Heraklion, Agops Myronas, Adelianos Kampos, Chania, Glyfada, Vrilissia, Amarousio, Nea Chalkidona, Piraeus, Fyli and in Turkey at Irmak among others.

 

An earthquake of M 4.7 in the Aegean Sea north of the Dodecanese Islands was also felt today. EMSC reported it was felt with moderate shaking up to V in Greece at Patitiri, Nea Erythraia Amarousio, Athens, Metamorfosi, Makryrrachi, Irakleio, Chalandri, Cholargos, Volos, Tavros, Nea Ionia, Piraeus, Palaio Faliro. This event may have been triggered by S-waves from an M 2.7 in the Dodecanese Islands two minutes earlier which was also widely felt. This is looking a bit like the seismicity at Mt. St. Helens, Washington prior to the eruption of that volcano in May, 1980 and could indicate a strong eruption near Santorini in the near future. Maximization of the current swarm may occur as tropical cyclone 15P passes near the antipode of Greece next week. Should this cyclone continue it would pass near the antipode of the Dodecanese Islands around February 9, 2025, but this storm is likely to dissipate before it reaches that point. Currently TC 15P is located in the Loyalty Islands and has been forecast in this summary to trigger a moderately strong earthquake in that region in the next several days as:

 

"Tropical Cyclone 15P formed today in the area of Vanuatu and the Loyalty Islands winds up to 55 kts.  This system is currently tracking to the southeast with winds up to 55 kts. It could help promoted aftershocks in southern Vanuatu and the Loyalty Islands as it passes through the area over the next several days." (February 2-3, 2025)

 

Following is a listing of events in this region in the past 24 hour of M>=4.

A more extensive listing can be found under the "EUROPE" section of this summary.

 

Forecast 169439 had expected enhanced regional seismicity in the Dodecanese Islands within about 100 km of these events was likely in early February, 2025.

 

O: 02FEB2025 06:48:09  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 07:22:05  36.6N   25.7E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 08:37:04  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:14:23  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:04:15  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:35:35  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:41:28  36.6N   25.7E Mw=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:53:45  36.6N   25.6E Mw=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 12:55:43  36.6N   25.7E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 13:32:31  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:41:22  36.6N   25.7E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:45:44  36.6N   25.6E mb=4.9  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:25:30  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:27:47  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 20:14:25  36.6N   25.6E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 22:05:24  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 23:54:42  36.6N   25.7E Mw=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 01:59:30  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 04:20:41  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:10:46  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:11:50  36.6N   25.8E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O:  3FEB2025 09:29:43  36.6N   25.6E MW=5.0  ANSS   NE OF O├¡A GREECE            

O:  3FEB2025 02:30:12  37.4N   25.6E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 CAAAA  Aegean Sea                 

P:  4FEB2025 169439    36.0N   26.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

 

An earthquake of M 2.2 occurred today north of New York City, New York. NEIC reported it was felt with intensity III in New York at Saint Regis Falls and in New Jersey and intensity II in Brushton, Dickinson Center, New York. This earthquake is located at 102 degrees from the earthquake in Kyushu, Japan of  January 13, 2025 and may have been promoted by energy from that source. It joins a number of other regionally significant quakes in the eastern U.S. at this distance from Kyushu since that mainshock. This includes the M 2.4 in Illinois today (see below). Like many of these in the northeast U.S. it is also at 105 degrees from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy associated with that event.

 

O:  2FEB2025 07:56:43  44.7N   74.7W ML=2.2  EMSC   NEW YORK                     

P: 26JAN2025 169250    45.0N   73.0W 2.0-3.9 CABAA  New England                

 

 

An M 2.4 also shook areas of Illinois and Missouri today. NEIC reported this earthquake was felt with intensity IV in Missouri at Jerculaneum, Imperial; III in Crystal City, Festus, Pevely; II in Barnhart with lesser shaking in southern Illinois. This earthquake is located at 102 degrees from the earthquake in Kyushu, Japan of  January 13, 2025 and may have been promoted by energy from that source. It joins a number of other regionally significant quakes in the eastern U.S. at this distance from Kyushu since that mainshock. This includes the M 2.2 north of New York City today (see above).

 

An aftershock of M 2.0 also occurred early on February 2, 2025 in the area of York Harbor, Maine. NEIC reported it was lightly felt with intensity II in Maine at Kittery Point and York. NEIC reported an earthquake of M 2.0 in Maine was felt with moderate intensity up to IV in the area(s) of Massachusetts at Sterling; III in Newburyport and II in Reading, Amesbury, Salisbury and Foxboro.

This event (like those noted above in New York and Illinois) occurred at 102-103 degrees from Kyushu, Japan and was probably promoted by energy from that source.

This event in Maine coincided within about 2 minutes with the M 4.7 in the area of Santorini, Greece.

 

This event in Maine may have been promoted by SFE from solar flare 460 - a strong M1.4 flare as it occurred near the peak output of that event. SWPC data for this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 460       1241   1250      1300   M1.4      (February 2, 2025)   1.1E-02  

Maine M 2.0 12:58 UT

Dodecanese M 4.8 12:56 UT

 

Forecast 169244 had expected this event in Maine was likely at the end of January or early February, 2025.

 

O:  2FEB2025 12:57:59  43.1N   70.5W ML=2.0  EMSC   MAINE                        

P: 26JAN2025 169244    44.0N   69.0W 2.0-4.3 CAAAA  Maine                      

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 02FEB2025 22:02:43  23.2N  120.5E ML=4.1  EMSC   TAIWAN

O:  2FEB2025 19:32:20  23.3N  120.5E ML=4.0  EMSC   TAIWAN                       

P: 27JAN2025 169170    23.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

 

O:  2FEB2025 07:28:00  27.8N   73.7E ML=3.6  EMSC   RAJASTHAN, INDIA             

P: 29JAN2025 169160    24.0N   71.0E 3.5-4.9 BCCAA  India                      

 

O: 02FEB2025 07:17:20  28.5N   87.4E mb=4.2  EMSC   WESTERN XIZANG

O:  2FEB2025 16:22:48  28.6N   87.5E ML=4.3  EMSC   WESTERN XIZANG               

P: 27JAN2025 169165    28.0N   88.0E 3.5-5.4 BAAAA  Nepal                       

 

O:  3FEB2025 04:56:38  37.5N   71.9E MB=4.4  EMSC   TAJIKISTAN                   

P: 25JAN2025 169191    39.0N   72.0E 3.8-5.3 CBAAA  Hindu Kush/Pakistan        

 

O:  2FEB2025 09:52:13  45.9N   53.5E MB=4.4  EMSC   WESTERN KAZAKHSTAN            

P: 31JAN2025 169242    40.0N   50.0E 4.0-5.7 ACCAA  Kazakhstan                 

 

INDONESIA AND PHILIPPINES

 

O:  2FEB2025 20:07:41   1.2N  127.5E MB=4.8  EMSC   HALMAHERA, INDONESIA         

P: 31JAN2025 169091     4.0N  128.0E 4.0-5.4 ACAAA  Halmahera                  

 

BMG  reported an earthquake of M 4.0 in Halmahera, Indonesia was felt with  intensity up to II in the area(s) of Halmahera, Indonesia  at Sahu.

 

O:  2FEB2025 13:38:44   2.4S  102.0E MB=4.4  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 26JAN2025 169115     2.0S   99.0E 4.0-5.4 CCAAA  So. of Sumatera            

 

BMG reported an earthquake of M 5.0 South of Sumatra  was felt with  intensity up to III in the area(s) South of Sumatra in Kab. Merangin at Jangkai, Muara Siau and Lembah Masurai with II in Kab. Pesisir, Dharmasraya, Kerinci, Merangin, Sarolangun, Bungo, Tebo, Sungai, Musi, Bengkulu, Muko, Lebong and Lampung.

 

O:  2FEB2025 21:37:12   4.0N   97.4E ML=2.8  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 24JAN2025 169095     6.0N   94.0E 4.0-5.7 CBCAA  Nicobar Islands            

 

O:  2FEB2025 07:37:21   4.6S  127.0E MB=5.0  EMSC   BANDA SEA                    

P: 30JAN2025 169102     3.0S  128.0E 4.0-5.5 ABAAA  Ceram area                 

 

O:  2FEB2025 08:57:00   5.1S  152.0E MB=4.5  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 28JAN2025 169107     6.0S  153.0E 4.0-5.4 BAAAA  New Britain                

 

O:  3FEB2025 03:36:18   5.7S  131.5E ML=4.3  EMSC   BANDA SEA                    

P: 30JAN2025 169120     3.0S  130.0E 4.0-5.5 BCBAA  West Irian, PNG            

 

BMG  reported an earthquake of M 5.3  in New Guinea, Molucca was felt with  intensity up to III in the area(s) of Kab. Kepulauan at Aru and Sir-Sir; Mimika, Dogiyai and Kaimana with II in Kab. Maluku, Kepulauan, Tual, Nabire, Yapen, Paniai, Minnika, Waropen, Dogiyai, Deiyai, Fak Fak, Teluk and Kaimana.

 

O:  3FEB2025 06:47:20   8.8N  126.8E ML=4.0  EMSC   MINDANAO, PHILIPPINES        

P: 28JAN2025 169137    10.0N  127.0E 3.5-4.9 BBAAA  Luzon, Philippines         

 

O:  2FEB2025 15:43:12  10.3N  125.5E MW=5.0  EMSC   LEYTE, PHILIPPINES           

P: 28JAN2025 169137    11.0N  125.0E 3.5-5.0 BAAAA  Luzon, Philippines         

 

PHIVOLCS reported an earthquake of M 5.0 in Leyte, Philippines  was felt with  intensity up to IV in the area(s) of the Philippines at Libjo, Loreto, and Tubajon, Dinagat Islands; III in Basilisa and San Jose, Dinagat Islands and with II in Surigao del Norte and Southern Leyte.

 

 

CENTRAL AND SOUTH AMERICA

 

O:  2FEB2025 12:49:57   0.9S   78.1W ML=3.8  EMSC   ECUADOR                      

P: 26JAN2025 169103     1.0S   77.0W 4.0-5.8 CAAAA  Ecuador                    

 

O:  3FEB2025 07:16:50  14.9N   92.8W ML=4.1  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 31JAN2025 169133    14.0N   92.0W 3.5-5.5 BAAAA  Guatemala                  

 

O: 02FEB2025 19:04:40  15.3N   94.7W ML=4.1  EMSC   OFF COAST OF OAXACA, MEXICO

O:  2FEB2025 08:31:00  15.2N   94.7W ML=4.2  EMSC   OFF COAST OF OAXACA, MEXICO  

P: 29JAN2025 169128    17.0N   95.0W 3.5-5.5 BBAAA  Chiapas, Mexico             

 

O:  2FEB2025 07:40:42  15.8N   95.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 24JAN2025 169146    15.0N   96.0W 3.5-5.3 CAAAA  Oaxaca, Mexico             

 

O:  2FEB2025 11:07:43  18.2N  103.6W ML=4.2  EMSC   OFFSHORE MICHOACAN, MEXICO    

P: 25JAN2025 169141    18.0N  103.0W 3.5-5.3 CAAAA  Michoacan, Mexico          

 

O:  2FEB2025 13:54:15  30.7S   71.5W MB=5.1  EMSC   COQUIMBO, CHILE              

P: 24JAN2025 169339    30.0S   71.0W 4.0-5.7 CAAAA  Coast Central Chile        

P: 24JAN2025 169339    32.0S   70.0W 4.0-5.8 CBAAA  Central Chile              

P: 29JAN2025 169339    31.0S   68.0W 4.0-5.6 BACAA  Central Chile              

 

O:  2FEB2025 15:27:00  32.0S   71.6W ML=3.0  EMSC   OFFSHORE COQUIMBO, CHILE     

P: 24JAN2025 169339    32.0S   70.0W 4.0-5.8 CABAA  Central Chile              

 

O:  2FEB2025 19:37:30  31.5S   68.0W ML=3.9  EMSC   SAN JUAN, ARGENTINA          

P: 29JAN2025 169339    31.0S   68.0W 4.0-5.6 BAAAA  Central Chile              

 

O:  2FEB2025 14:25:30  37.5S   69.3W ML=3.6  EMSC   NEUQUEN, ARGENTINA           

P: 26JAN2025 169341    36.0S   71.0W 4.0-6.0 CBBAA  Central Chile              

P: 27JAN2025 169341    38.0S   74.0W 4.0-5.5 BACAA  Central Chile              

 

O:  2FEB2025 15:01:00  33.8S   72.0W MB=4.5  EMSC   OFFSHORE VALPARAISO, CHILE   

P: 27JAN2025 169340    34.0S   70.0W 4.0-5.9 BABAA  Central Chile              

 

O:  2FEB2025 10:25:29  44.5S   79.5W MW=4.8  EMSC   OFF COAST OF AISEN, CHILE    

P: 29JAN2025 169342    43.0S   83.0W 4.0-5.6 BBCAA  Chile Rise                 

 

 

AFRICA AND EUROPE

 

O:  2FEB2025 11:18:15  36.7N   24.6E ML=4.0  EMSC   SOUTHERN GREECE              

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 CAAAA  Aegean Sea                 

 

O:  2FEB2025 13:39:39  40.4N    3.3E ML=3.2  EMSC   BALEARIC ISLANDS, SPAIN      

P: 24JAN2025 169229    39.0N    0.0E 3.0-4.6 CBCAA  Western Mediterranean      

 

O:  2FEB2025 12:34:11  51.6N   16.1E MB=4.0  EMSC   POLAND                       

P: 24JAN2025 169282    50.0N   19.0E 3.0-4.6 CBBAA  Poland                     

 

O:  3FEB2025 00:05:17  57.3N    1.0E ML=3.1  EMSC   NORTH SEA                    

P: 27JAN2025 169279    52.0N    7.0E 3.0-4.8 CCCAA  Netherlands/Belgium        

 

O:  3FEB2025 02:33:24  71.7N    2.9W MB=4.6  EMSC   JAN MAYEN ISLAND REGION      

P: 23JAN2025 169305    71.0N    8.0W 3.5-5.0 CAAAA  Jan Mayen Isl. area        

 

O:  3FEB2025 09:45:05  34.6N    9.6E MW=4.8  ANSS   W OF MEZZOUNA TUNISIA        

P:  1FEB2025 169457    35.0N    8.0E 3.5-5.0 AABAA  Morocco/Spain              

P:  4FEB2025 169498    36.0N    7.0E 3.0-4.5 ABBAA  Western Mediterranean      

 

O: 02FEB2025 22:23:25  36.5N   25.6E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 01:01:16  36.5N   25.7E ML=3.0  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 02:18:49  36.5N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 04:39:15  36.5N   25.6E ML=3.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 04:48:02  36.5N   25.6E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 06:18:19  36.5N   25.7E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 06:32:20  36.5N   25.6E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 06:48:09  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 07:12:41  36.6N   25.7E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 07:22:05  36.6N   25.7E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 07:48:35  36.6N   25.7E ML=3.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 08:12:55  36.6N   25.7E ML=3.0  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 08:14:11  36.6N   25.7E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 08:18:32  36.6N   25.7E ML=3.0  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 08:23:34  36.6N   25.7E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 08:37:04  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:12:09  36.6N   25.7E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:14:23  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:22:20  36.6N   25.6E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:25:03  36.6N   25.7E ML=3.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:26:24  36.6N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:32:09  36.6N   25.6E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 10:43:43  36.6N   25.8E ML=3.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 10:55:16  36.6N   25.7E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 10:58:15  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:04:15  36.6N   25.7E ML=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:21:29  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:29:07  36.6N   25.7E ML=3.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:35:35  36.6N   25.7E ML=4.0  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:39:45  36.6N   25.6E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:41:28  36.6N   25.7E Mw=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 11:53:45  36.6N   25.6E Mw=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 12:10:10  36.6N   25.7E ML=3.9  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 12:13:35  36.6N   25.6E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 12:55:43  36.6N   25.7E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 13:23:17  36.6N   25.7E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 13:32:31  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 13:57:07  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 15:08:33  36.6N   25.6E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 15:43:48  36.6N   25.6E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 15:49:46  36.6N   25.6E ML=3.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 16:58:00  36.6N   25.6E ML=3.4  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 16:59:32  36.6N   25.6E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:02:38  36.6N   25.6E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:04:11  36.6N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:13:40  36.6N   25.7E ML=3.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:16:26  36.6N   25.7E ML=3.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:17:40  36.6N   25.8E ML=3.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:35:15  36.6N   25.7E ML=3.0  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:41:22  36.6N   25.7E Mw=4.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 17:45:44  36.6N   25.6E mb=4.9  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:23:35  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:25:30  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:27:47  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:52:51  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:54:00  36.6N   25.7E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:59:07  36.6N   25.7E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 19:10:38  36.6N   25.7E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 19:19:21  36.6N   25.6E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 19:21:01  36.6N   25.7E ML=3.4  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 20:14:25  36.6N   25.6E mb=4.6  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 20:23:10  36.6N   25.6E ML=3.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 20:24:27  36.6N   25.7E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 20:45:03  36.6N   25.7E ML=3.0  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 21:16:25  36.6N   25.7E ML=3.7  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 21:45:29  36.6N   25.6E ML=3.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 22:05:24  36.6N   25.7E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 22:22:07  36.6N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 22:29:24  36.6N   25.6E ML=3.4  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 23:54:42  36.6N   25.7E Mw=4.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 23:58:31  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 00:29:22  36.6N   25.7E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 00:43:36  36.6N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 01:30:57  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 01:59:30  36.6N   25.6E mb=4.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 02:28:09  36.6N   25.7E ML=3.4  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 02:35:01  36.6N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 04:00:37  36.6N   25.7E ML=3.1  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 04:04:28  36.6N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 04:20:41  36.6N   25.6E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 04:56:52  36.6N   25.6E ML=3.7  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:04:10  36.6N   25.7E ML=3.9  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:10:46  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:11:50  36.6N   25.8E ML=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:24:46  36.6N   25.7E ML=3.9  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:28:08  36.6N   25.7E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:35:23  36.6N   25.7E ML=3.9  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 05:48:27  36.6N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 06:35:20  36.6N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:10:56  36.7N   25.7E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:16:23  36.7N   25.7E ML=3.3  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 09:34:20  36.7N   25.6E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 12:03:52  36.7N   25.7E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 18:41:10  36.7N   25.6E ML=3.7  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 03:32:46  36.7N   25.4E ML=3.9  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 03:34:02  36.7N   25.7E ML=3.8  EMSC   DODECANESE ISLANDS, GREECE

O: 03FEB2025 03:48:30  36.7N   25.9E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE

O:  3FEB2025 09:29:43  36.6N   25.6E MW=5.0  ANSS   NE OF O├¡A GREECE            

O:  3FEB2025 02:30:12  37.4N   25.6E ML=3.6  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 CAAAA  Aegean Sea                 

P:  4FEB2025 169439    36.0N   26.0E 3.0-5.5 AAAAA  Aegean Sea                 

 

SOUTHWEST PACIFIC

 

O:  3FEB2025 05:06:59  15.5S  167.7E MB=4.7  EMSC   VANUATU                       

P: 26JAN2025 169322    15.0S  167.0E 4.0-5.5 CAAAA  Vanuatu Islands            

 

O:  2FEB2025 16:23:06  20.0S  177.2W MB=4.2  EMSC   FIJI REGION                  

P: 28JAN2025 169334    20.0S  179.0W 4.0-5.5 BABAA  Tonga Islands              

 

O:  2FEB2025 12:31:53  21.4S  179.3W MB=4.5  EMSC   FIJI REGION                  

O:  2FEB2025 09:13:10  23.4S  179.4W MB=4.6  EMSC   SOUTH OF FIJI ISLANDS        

P: 24JAN2025 169334    21.0S  179.0W 4.0-5.5 CAAAA  Tonga Islands              

 

No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia

today.

 

JAPAN AND KURIL ISLANDS

 

O:  2FEB2025 20:37:51  26.8N  127.2E ML=4.2  EMSC   RYUKYU ISLANDS, JAPAN        

P: 28JAN2025 169168    26.0N  128.0E 4.0-5.6 BAAAA  Ryukyu Islands             

 

NEIC reported an earthquake of M 4.6 in Ryukyu Islands, Japan was felt with moderate intensity up to II-III in the area(s) of Ryukyu Islands, Japan in Okinawa at Chatan and Naha.

 

O:  2FEB2025 08:13:05  36.6N  141.8E ML=4.0  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 29JAN2025 169205    37.0N  142.0E 4.0-5.5 BAAAA  Off East Coast Honshu      

 

O:  2FEB2025 18:43:19  42.6N  146.7E MB=4.4  EMSC   OFF COAST OF HOKKAIDO, JAPAN 

P: 25JAN2025 169238    43.0N  146.0E 3.5-5.4 CAAAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 02FEB2025 22:40:24  31.1N  115.8W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 02FEB2025 10:26:39  31.6N  115.1W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO

O: 02FEB2025 10:29:12  31.6N  115.1W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 02FEB2025 09:59:31  32.2N  115.4W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO

O:  2FEB2025 08:51:00  31.7N  115.0W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO      

P: 29JAN2025 169210    32.4N  115.8W 2.5-4.8 BAAAA  So. California             

 

O:  3FEB2025 03:30:15  33.2N  116.8W ML=2.8  EMSC   SOUTHERN CALIFORNIA          

P: 29JAN2025 169211    33.4N  116.7W 2.5-4.7 BAAAA  So. California             

 

 

NEIC reported an earthquake of M 2.8 in Southern California was felt with moderate intensity up to II-III in the area(s) of Southern California with III in Santa Ysabel and II in Alpine, Chula Vista, Descanso, El Cajon, Escondido. Julian, Pauma Valley, Poway, Ramona, Valley Center and Vista.

EMSC reported it as a quick jolt at Valley Center and Julian, California..

NEIC reported an earthquake of M 2.7 in Southern California was felt with moderate intensity up to II-III in the area(s) of Southern California at Temecula.

 

O:  2FEB2025 15:01:47  38.4N  122.6W MD=2.3  EMSC   NORTHERN CALIFORNIA          

O: 02FEB2025 16:50:32  38.6N  122.8W MD=2.2  EMSC   NORTHERN CALIFORNIA

P: 30JAN2025 169185    39.4N  123.3W 2.5-4.6 AAAAA  Central California         

P: 31JAN2025 169184    37.9N  122.0W 2.5-4.4 AAAAA  Central California         

 

NEIC reported an earthquake of M 2.2 in California Geysers was felt with moderate intensity up to II-III in the area(s) of California Geysers at Healdsburg.

An event south of this near Rohnert Park, California of M 2.3 was felt with intensity III in Rohnert Park and Santa Rosa.

 

O:  3FEB2025 05:47:14  40.3N  124.5W MD=2.8  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 02FEB2025 11:28:02  40.4N  124.3W MD=2.0  EMSC   NORTHERN CALIFORNIA

P: 25JAN2025 169255    40.2N  124.2W 2.5-4.4 CAAAA  Off Coast of No. Calif     

 

ALASKA

 

O:  2FEB2025 21:21:18  55.2N  156.9W ML=3.6  EMSC   SOUTH OF ALASKA              

P: 25JAN2025 169287    54.3N  161.4W 3.5-4.9 CACAA  Unimak Islands, Aleutians  

 

O:  3FEB2025 04:04:01  62.2N  153.8W ML=3.8  EMSC   CENTRAL ALASKA               

P: 30JAN2025 169294    62.6N  151.4W 3.2-5.3 BAAAA  Central Alaska             

 

O:  3FEB2025 06:36:08  65.4N  168.7W MB=5.0  EMSC   BERING STRAIT                

O:  3FEB2025 06:36:04  65.4N  169.1W MB=5.0  ANSS   BERING STRAIT, ALASKA        

P:  2FEB2025 169564    67.1N  167.9W 3.2-5.3 ABAAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

O:  2FEB2025 15:40:57  47.5N  123.2W ML=2.2  EMSC   OLYMPIC PENINSULA, WASHINGTON

P: 27JAN2025 169268    46.9N  122.0W 2.0-4.1 BAAAA  Washington state, U.S.      

 

O:  3FEB2025 00:25:37  51.6N  130.8W MB=4.4  EMSC   HAIDA GWAII REGION           

O:  3FEB2025 00:25:37  51.6N  130.7W MB=4.4  ANSS   PORT MCNEILL CANADA          

O:  3FEB2025 00:25:32  51.3N  131.2W MB=4.9  ECAN SSE OF DAAJING GIIDS, BC       

P:  4FEB2025 169547    50.5N  130.4W 3.0-5.3 AAAAA  British Colombia           

P: 28JAN2025 169274    50.6N  130.5W 3.0-5.4 BAAAA  British Colombia           

 

 

ROCKY MOUNTAINS REGION

 

O: 02FEB2025 07:22:04  32.4N  102.1W ML=2.1  EMSC   WESTERN TEXAS

O:  2FEB2025 10:39:49  31.6N  104.0W ML=2.4  EMSC   WESTERN TEXAS                

O:  2FEB2025 07:17:32  32.4N  102.1W ML=2.1  EMSC   WESTERN TEXAS                

P: 27JAN2025 169209    31.6N  103.6W 2.0-4.4 BAAAA  SW U.S.A                   

 

O:  3FEB2025 05:03:34  42.9N  111.1W ML=3.0  EMSC   SOUTHERN IDAHO               

P: 29JAN2025 169235    41.9N  108.7W 2.0-3.9 BACAA  Colorado area              

 

NEIC reported an earthquake of M 3.0 in Wyoming was felt with moderate intensity up to IV in the area(s) of Wyoming  at Thayne; III in Preston Idaho and II in Grover, Wyoming.

 

EASTERN U.S./CANADA

 

O:  3FEB2025 05:21:49  35.1N   97.6W ML=2.1  EMSC   OKLAHOMA                     

P: 31JAN2025 169223    36.0N   97.0W 2.0-4.4 BAAAA  Southern Plains             

 

NEIC reported an earthquake of M 2.1 in Oklahoma was felt with moderate intensity up to II-III in the area(s) of Oklahoma at Blanchard.

 

O:  3FEB2025 00:12:09  39.6N   99.3W ML=2.5  EMSC   KANSAS                       

P: 30JAN2025 169223    39.0N   99.0W 2.0-3.9 BAAAA  Southern Plains            

 

NEIC reported an earthquake of M 2.5 in Kansas was felt with moderate intensity up to II-III in the area(s) of Kansas at Glade and Stockton.

 

O:  2FEB2025 12:57:59  43.1N   70.5W ML=2.0  EMSC   MAINE                         

P: 26JAN2025 169244    44.0N   69.0W 2.0-4.3 CAAAA  Maine                      

 

O:  2FEB2025 07:56:43  44.7N   74.7W ML=2.2  EMSC   NEW YORK                     

P: 26JAN2025 169250    45.0N   73.0W 2.0-3.9 CABAA  New England                 

 

O:  2FEB2025 18:57:36  36.6N   89.6W MD=1.7  ANSS   WSW OF HOWARDVILLE MISSOURI  

P:  7FEB2025 169459    36.0N   89.0W 2.0-3.9 BAAAA  New Madrid area            

 

O:  3FEB2025 00:12:09  39.6N   99.3W MB=2.5  ANSS   S OF GLADE KANSAS             

P:  3FEB2025 169493    39.0N   99.0W 2.0-4.2 AAAAA  Southern Plains            

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

GEOMAGNETIC STORM AND TIDES ENHANCE GLOBAL SEISMICITY

 

EARTHQUAKE SUMMARY FOR FEBRUARY 1, 2025

 

 

The geomagnetic field was at its most disturbed levels in nearly a month. The planetary AP index was 27 with maximum KP reaching 7 about 15:00-21:00 UT. These are the highest AP levels since January 4, 2025. Global seismicity normally takes a couple of days to reflect the new geomagnetic regime. For example an M 7.1 in Tibet on January 7, 2025 is the strongest earthquake to date in the year 2025. A strong earthquake in the world, possibly in South America, is considered likely centering on February 5, 2025. The coast of South America remains under seismic watch conditions called yesterday by this summary. The most likely locale for a strong event at this time appears to be Coquimbo, Chile and/or San Juan, Argentina. This could be promoted by a strong solar flare of the current geomagnetic storm.

 

An unusual earthquake of M 4.9 (NEIC) to M 5.2 (SSNC) hit the area north of Honduras today. This was the second strongest event in the world today following an M 5.1 in the Loyalty Islands. Both appear to have been promoted by tidal stresses. The event in Honduras occurred within minutes of local solar noon and was probably promoted by tidal stresses which maximize near this hour, while the Loyalty Islands event occurred within minutes of local solar midnight, another time of maximized tidal stresses.

 

The last earthquake of M>=4.9 within about 150 km of this epicenter north of Honduras occurred two years ago as an M 5.5 on February 8, 2023. This earthquake in 2023 occurred as the eye of Tropical Cyclone Dingani had passed over the antipode the day of the Honduras earthquake, February 7-8, 2023. At the time this summary had made the connection between these two events as:

 

 

"TC    DINGANI  2023-02-09  00:00 UT  16.3S   89.1E   50 kts  South of Sumatra            

 

TC Dingani (13S) formed today in the region south of India and Sumatra with winds up to 50 kts. Promoted seismicity with this system is unlikely at this time. The antipode of this storm is in Guatemala and Chiapas/Yucatan Mexico. Some promoted seismicity may occur in that area." (February 9, 2023)

 

This situation is exactly analogous to the current situation. At the present the eye of Tropical Cyclone 13S is exactly antipodal to the epicenter of the M 4.9 in Honduras today. It appears the event in Honduras was triggered by energy focused at the antipode of TC 13S as noted in this summary:

 

TROPICAL CYCLONE 13S                   

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    13S      2025-02-02  00:00 UT  17.1S   94.3E  050 kts  north of western Australia   

 

Tropical Cyclone 13S formed today in the area of the south Indian Ocean north of western Australia with winds up to 50 kts.  It is expected to track to the west and south over the next several days. The antipode at 17N 86W is in the Caribbean Sea north of Honduras. An M 4.9 at that location today was most likely triggered by antipodal energy from TC 13. and to turn south as it reaches La Reunion. It may encourage volcanism in the area of La Reunion and could continue south to areas antipodal to Baja and Southern California. The current antipode is at 16N 107W near Jalisco and Michoacan, Mexico where antipodal effects could enhance seismicity at this time.

 

A second Tropical Cyclone off northern Australia may be forming as noted in the previous issue of this summary:

 

"Tropical cyclones may be forming north of Australia. These include a storm at 14S 103E moving to the west with winds up to 33 kts. and a storm at 14S 120E moving to the west with winds up to 33 kts. Neither of these is strong at this time and are unlikely to enhance regional seismicity at this time. The storm at 120E could see minor enhancement of seismicity at its antipode in the Leeward Islands, Caribbean." (February 1, 2025)

 

Forecast 169143 had expected today's event north of Honduras within about 50

km of the epicenter was likely in late January, 2025.

 

O:  1FEB2025 17:48:29  17.0N   85.6W MW=4.9  EMSC   NORTH OF HONDURAS            

P: 23JAN2025 169143    17.0N   86.0W 3.5-5.4 CAAAA  Nicaragua                  

 

An M 4.1 several minutes after the Honduras event of M 4.9 occurred in the Virgin Islands today. It is near the antipode of this cyclone off Australia and may have been promoted by focused antipodal energy as well. A foreshock in the Cayman Islands, Caribbean was located by SSNC with M 4.2 about 300 km east of the Honduras event and was also antipodal to TC 13S.

 

Forecast 169136 had expected enhanced seismicity in the Virgin Islands was

likely around January 31, 2025.

 

O:  1FEB2025 18:16:25  19.4N   64.0W MD=4.1  EMSC   VIRGIN ISLANDS REGION        

P: 31JAN2025 169136    18.0N   65.0W 3.0-5.1 ABAAA  Leeward Islands            

 

An M 4.8 also occurred today in the region of San Juan, Argentina. It was not reported felt due to its intermediate depth at 105 km . But, like the later event in Honduras, this earthquake occurred within several minutes of local solar noon and was probably promoted by tidal stresses which maximize near this hour. It was nearly sub-solar at the time of occurrence.

 

Forecast 169339 had expected this earthquake in Argentina was likely within  about 100 km of this epicenter around January 29, 2025.

 

O:  1FEB2025 16:28:55  31.5S   68.7W MB=4.8  EMSC   SAN JUAN, ARGENTINA          

P: 29JAN2025 169339    31.0S   68.0W 4.0-5.6 AAAAA  Central Chile              

 

Another earthquake, the largest in the world today - of M 5.1 in the area southeast of the Loyalty Islands  - also appears to have been triggered by tidal stresses. This event occurred within a couple of minutes of local solar midnight, another hour when tidal stresses on the earth are at maximum. This event occurred as a new tropical cyclone was approaching the Loyalty Islands and may have been promoted by stresses related to that storm as noted in this summary:

 

A tropical cyclone may be forming west of Vanuatu. This system is currently located at 19S 164E and tracking to the southeast with winds up to 28 kts. It could help promoted aftershocks in southern Vanuatu and the Loyalty Islands as it passes through the area over the next several days.

 

Forecast 169327 had expected enhanced seismicity within about 100 km of this

epicenter was likely at the end of January or early February, 2025.

 

O:  1FEB2025 12:43:29  23.0S  171.4E MB=5.1  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 24JAN2025 169327    22.0S  171.0E 4.0-5.8 CAAAA  Loyalty Islands            

 

Seismicity also continued to increase in the Dodecanese Islands today. The  largest events in the area today were M 4.8-4.9 (NEIC), the largest to date in this swarm and an M 4.4 (NEIC) to M 4.7 (IPMA, IGEO); M 4.3-M 4.5. NEIC reported these earthquakes were felt with intensity III in Kiklades, Greece at Mesaria, Naousa, Paros and Ino Siros. An M 4.7 was also recorded in the area early on February 2. NEIC reported it was felt with moderate intensity in Greece at Thira, Santorini, Lakkio, Kalymnos, Agios Kirykos, Ilioupoli and slightly in Turkey at Bahcelievler among others. This summary had noted the seismicity of this region in the previous issue as:

 

 

"The swarm of earthquake in the Dodecanese Islands of Greece continued today.

This series is near the volcanically active area of Santorini. Local geoscientists fear this may precede an eruption of the local volcanic sites. While a massive volcanic eruption near 1600 BC at this location changed the history of Europe, there have been minor episodes such as the current activity in recent years which did not end in volcanism. This activity began near the new moon of January 29, 2025 and may have been promoted by strong tidal stresses from that alignment. This summary has been following these events over the past several days. The strongest earthquake in this swarm to date occurred today as an M 4.3 at 12:51 UT. In the previous issue it was noted:

 

 

"NEIC reported an earthquake of M 4.4 in Attiki, Greece was felt with moderate intensity up to II-III in the area(s) of Attiki, Greece at Amarousion, Athens, Kapandrition, Neon, Viron, Ayios Paneleimon and II in Melissia, Moskhaton, Vrilissia, Zefirion, Aghios Dimitrios and in Kimi Evvoia. The area of Greece has seen enhanced seismicity with the new moon of January 29 as it lies at a latitude where tidal stresses were maximized with that new moon as reported in previous issues of this summary:

 

"A strong series of minor earthquakes has been occurring in the Dodecanese Islands of Greece over the past day. It is expected to continue through the end of January. These epicenters are at a longitude which is at local solar midnight when the new moon occurs on January 29, 2025 (see above) and could be enhanced

at that time." (January 29, February 1, 2025)

 

The Dodecanese Islands swarm became more activated today following a strong M3.0 class solar flare beginning at about 10:00 UT (12:00 Local solar time in Greece) at local solar noon in the Dodecanese Islands. This could have triggered more and stronger seismicity in the area in coming days and hours. The M 4.7 in the Dodecanese Islands occurred at 12:55 UT at the peak of a second M1.4 solar flare. SWPC preliminary data for these flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

XXXX       1000   1012      1050   M3.0        (February 2, 2025)  3.0E-02

XXXX       1241   1250      1300   M1.4        (February 2, 2025)  1.1E-02

 

While dozens of earthquakes of M 3.0-3.9 have occurred in this swarm, we list here those with M>=4 today. A more extensive listing can be found in the "EUROPE" section of this summary.

 

These earthquakes are located at 142 degrees from the M 7.4 in Vanuatu of

December 17, 2024 and at the seventh node (51.4 degrees) from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from those sources.

 

Forecast 169173 had expected enhanced seismicity within about 100 km of these events was likely to occur in late January or early February, 2025.

 

O: 01FEB2025 12:51:46  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 01FEB2025 13:29:56  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 06:48:09  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 07:22:05  36.6N   25.7E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O:  1FEB2025 10:16:37  36.6N   25.7E MW=4.0  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 BAAAA  Aegean Sea                 

 

Moderate aftershocks also continued following the M 5.5-5.8 earthquake on February 1 in Ecuador. The largest of these was an M 5.0 (EMSC) to M 5.1 (NEIC). NEIC reported these events were felt with moderate shaking up to IV in Tena Napo, Ecuador and III in Ecuador at Quito and Sangolqui, Pichincha and Latacunga, Cotopaxi.

 

Forecast 169103 had expected this activity in Ecuador was likely within about 100 km of these epicenters in late January or early February, 2025.

 

O: 01FEB2025 11:27:31   0.8S   78.1W ML=4.3  EMSC   ECUADOR

O:  1FEB2025 11:05:50   0.8S   78.1W MB=5.0  EMSC   ECUADOR                      

P: 26JAN2025 169103     1.0S   77.0W 4.0-5.8 BAAAA  Ecuador                    

 

A light earthquake of M 3.6 was recorded by EMSC today in the area of Ukraine.

This is the largest earthquake recorded in this area in the past nine years.

Only three events of M>=3.6 have been recorded in Ukraine in the past 35 years – an M 4.8 on August 7, 2015; an M 4.5 on June 23, 2013 and an M 3.7 on December 25, 2007. Seismicity in the area of Ukraine had been discussed in the August 7, 2016 issue of this summary as:

 

"An unusual earthquake of M 4.6 occurred in Ukraine today. EMSC reported it was felt with intensity up to V in Ukraine at Topolyne, Staryi Krym, Sartana, Mariupol, Novotroits'ke, Marinka, Donetsk, Ilovais'k, Berdyans'k, Yasynavatu, Khartsyz'k, Ukraine and in Russia at Taganrog, Eysk, and in general within about 100 km of the epicenter. This event, which occurred within about an hour of local solar noon, may have been promoted by tidal stresses which maximize at this time. The longitude  was consistent with maximum tidal stresses at this time ...

 

 

The earthquake in Ukraine is the strongest since an M 5.5 on November 9, 2002 and the second strongest in the area in the past 25 years." (August 7, 2016)

 

O:  1FEB2025 16:21:17  49.6N   34.3E MB=3.6  EMSC   UKRAINE                      

 

An earthquake of M 2.2 occurred today north of New York City, New York. NEIC reported it was felt with intensity III in New York at Saint Regis Falls and in New Jersey and intensity II in Brushton, Dickinson Center, New York. This is the strongest earthquake in the area within about 150 km of this epicenter since an M 2.4 on January 1, 2025 and before that an M 2.8 on July 29, 2024.

 

This earthquake is located at 102 degrees from the earthquake in Kyushu, Japan of January 13, 2025 and may have been promoted by energy from that source. It joins a number of other regionally significant quakes in the eastern U.S. at this distance from Kyushu since that mainshock. This includes the M 2.4 in Illinois today (see below). Like many of these in the northeast U.S. it is also at 105 degrees from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy associated with that event.

 

O:  2FEB2025 07:56:43  44.7N   74.7W ML=2.2  EMSC   NEW YORK                     

P: 26JAN2025 169250    45.0N   73.0W 2.0-3.9 CABAA  New England                

 

 

An M 2.4 also shook areas of Illinois and Missouri today. NEIC reported this earthquake was felt with intensity IV in Missouri at Jerculaneum, Imperial; III in Crystal City, Festus, Pevely; II in Barnhart with lesser shaking in southern Illinois. The last earthquake Illinois within about 100 km of today's epicenter with M>=2.4 was recorded by NEIC on January 21, 2025 about 50 km south of today's epicenter with M 2.4 and on September 26, 2024 with M 2.4 about 50 km north of today's epicenter.

 

This earthquake is located at 102 degrees from the earthquake in Kyushu, Japan of  January 13, 2025 and may have been promoted by energy from that source. It joins a number of other regionally significant quakes in the eastern U.S. at this distance from Kyushu since that mainshock. This includes the M 2.2 north of New York City today (see above).

 

An aftershock of M 2.0 also occurred early on February 2, 2025 in the area of York Harbor, Maine. NEIC reported it was lightly felt with intensity II in Maine at Kittery Point and York. This event (like those noted above in New York and Illinois) occurred at 102-103 degrees from Kyushu, Japan and was probably promoted by energy from that source. This event in Maine coincided within about 2 minutes with the M 4.7 in the area of Santorini, Greece (see above).

 

An M 4.7-5.3 earthquake east of Seddon, New Zealand followed the unusual M 3.7 north of this event 30 minutes later today.  GEONET reported this earthquake was felt with light to moderate intensity in the area southeast of Seddon, New Zealand and in southern North Island and northern South Island. 582 reports of felt events were made of which 438 reported weak and 135 with light intensity with 9 reports of moderate shaking and 0 with strong and 0 severe and 0 with extreme intensity came from the area.  NEIC reported intensity III in Canterbury, South Island, New Zealand at Akaroa, Lyttelton, Christchurch and in Marlborough at Blenheim, and Seddon. This earthquake is the strongest within about 150 km off the east coast of South Island New Zealand since an M 5.4 on October 12, 2015. At the time

this summary noted:

 

 

"GeoNet reported an earthquake of M 4.4 was felt with moderate intensity east of Pongaroa, North Island, New Zealand. Felt with weak to moderate intensity throughout most of southern North Island with maximum intensity at Dannevirke and Awapuni, New Zealand. The event of M 4.1 was felt with moderate intensity east of Pongaroa, North Island, New Zealand. Felt with weak to moderate intensity throughout most of southern North Island including areas from Kapiti and Carterton north to Waipuku and Kimbolton, North Island, New Zealand. These are aftershocks of the earlier M 5.7 which was widely felt in New Zealand causing light damage in the region.  The last earthquake of M>=5.4 within about 150 km of this epicenter occurred on September 22, 2014 (M 5.4). The last of M>=5.8 on January 20, 2014 with M 6.2." (October 12, 2015)

 

This earthquake in New Zealand is at 107 degrees from the M 7.1 in Tibet of

January 7, 2025 and may have been promoted by energy from that source.

 

Forecast 169350 had expected enhanced seismicity in this area was likely at the end of January, 2025.

 

O:  1FEB2025 08:45:10  32.5S  176.5E ML=3.7  EMSC   NORTH OF NEW ZEALAND         

P: 19JAN2025 169072    35.0S  179.0E 3.0-4.4 DCCAA  North Island, N.Z.         

 

O: 31JAN2025 22:23:34  40.3S  176.1E ML=3.4  EMSC   NORTH ISLAND OF NEW ZEALAND  

O:  1FEB2025 09:26:40  42.3S  174.9E MW=4.7  EMSC   OFF E. COAST OF S. ISLAND, N.Z

O:  1FEB2025 09:26:40  42.3S  174.9E MW=5.3  GEONET OFF E. COAST OF S. ISLAND, N.Z

O:  1FEB2025 09:26:39  42.3S  175.0E MW=4.7  EMSC   OFF E. COAST OF S. ISLAND, N.Z

O: 01FEB2025 09:26:40  42.3S  174.9E mw=4.7  ANSS   Houghton Bay New Zealand

P: 27JAN2025 169350    41.0S  174.0E 3.0-4.9 BBAAA  So. Island, N.Z.            

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O:  2FEB2025 06:02:49  22.8N  121.1E ML=4.1  EMSC   TAIWAN REGION                

P: 31JAN2025 169139    21.0N  122.0E 3.5-4.9 ABAAA  Luzon, Philippines         

 

O:  2FEB2025 07:17:19  28.5N   87.2E ML=4.5  EMSC   WESTERN XIZANG               

P: 27JAN2025 169165    28.0N   88.0E 3.5-5.4 BAAAA  Nepal                      

 

O:  1FEB2025 12:40:45  22.8N   94.0E ML=4.4  EMSC   MYANMAR-INDIA BORDER REGION  

P: 28JAN2025 169163    23.0N   95.0E 4.0-5.4 BAAAA  Myanmar                    

 

O:  2FEB2025 04:33:48  55.0N  162.0E MB=4.4  EMSC   NEAR EAST COAST OF KAMCHATKA 

P: 28JAN2025 169278    56.0N  165.0E 4.0-5.8 BABAA  Komandorsky Isl            

 

No significant (M>=5) or unusual earthquakes were reported in Asia today.

 

INDONESIA AND PHILIPPINES

 

O:  1FEB2025 11:44:11   1.5N  126.0E ML=4.1  EMSC   MOLUCCA SEA                  

P: 26JAN2025 169093     3.0N  126.0E 4.0-5.4 BBAAA  Mindanao, Philippines      

 

O: 01FEB2025 22:49:43   2.6N   96.8E ML=3.5  EMSC   SIMEULUE, INDONESIA

O:  1FEB2025 13:51:14   4.1N   93.6E ML=3.9  EMSC   OFF W COAST OF NORTHERN      

P: 24JAN2025 169095     6.0N   94.0E 4.0-5.7 CBAAA  Nicobar Islands            

 

O:  1FEB2025 20:24:31   4.5S  134.4E MW=4.8  EMSC   NEAR S COAST OF PAPUA, INDONES

P: 30JAN2025 169120     3.0S  130.0E 4.0-5.5 ABCAA  West Irian, PNG            

 

O:  2FEB2025 07:37:21   4.6S  127.0E MB=5.0  EMSC   BANDA SEA                    

P: 30JAN2025 169102     3.0S  128.0E 4.0-5.5 ABAAA  Ceram area                  

 

O:  2FEB2025 05:22:09   5.3S  131.1E MB=4.4  EMSC   BANDA SEA                    

P: 30JAN2025 169120     3.0S  130.0E 4.0-5.5 ACAAA  West Irian, PNG            

 

O:  1FEB2025 08:32:35   6.2S  122.5E ML=4.0  EMSC   FLORES SEA                    

P: 26JAN2025 169104     8.0S  124.0E 4.0-5.8 CBBAA  Flores Island area         

 

O:  1FEB2025 22:39:30   6.8S  130.6E ML=4.5  EMSC   BANDA SEA                    

P: 27JAN2025 169122     7.0S  130.0E 4.0-5.4 BAAAA  West Irian, PNG             

 

O:  1FEB2025 11:01:05  10.0N  126.3E MB=4.6  EMSC   PHILIPPINE ISLANDS REGION    

P: 28JAN2025 169137    10.0N  127.0E 3.5-4.9 BAAAA  Luzon, Philippines         

 

O:  1FEB2025 11:55:53  13.8N  120.1E ML=4.4  EMSC   MINDORO, PHILIPPINES          

P: 27JAN2025 169138    13.0N  122.0E 3.5-5.0 BABAA  Luzon, Philippines         

 

CENTRAL AND SOUTH AMERICA

 

 

O: 01FEB2025 11:27:31   0.8S   78.1W ML=4.3  EMSC   ECUADOR

O:  1FEB2025 11:05:50   0.8S   78.1W MB=5.0  EMSC   ECUADOR                       

P: 26JAN2025 169103     1.0S   77.0W 4.0-5.8 BAAAA  Ecuador                    

 

O:  1FEB2025 07:35:12  14.7N   94.3W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 30JAN2025 169128    14.0N   93.0W 3.5-5.7 AABAA  Chiapas, Mexico             

 

O:  2FEB2025 07:40:42  15.8N   95.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 29JAN2025 169128    17.0N   95.0W 3.5-5.5 BBAAA  Chiapas, Mexico            

 

O:  1FEB2025 13:44:47  17.0N   94.2W ML=4.2  EMSC   OAXACA, MEXICO                

P: 29JAN2025 169128    17.0N   95.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

 

O: 01FEB2025 13:20:34  18.1N   68.4W MD=3.6  EMSC   MONA PASSAGE, DOMINICAN REPUBLIC

O: 01FEB2025 11:35:27  18.9N   65.4W MD=3.2  EMSC   PUERTO RICO REGION

O:  1FEB2025 22:16:09  18.0N   66.8W MD=3.0  EMSC   PUERTO RICO                  

P: 30JAN2025 169150    19.0N   66.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O:  1FEB2025 20:27:22  18.0S   69.6W MB=4.6  EMSC   TARAPACA, CHILE              

O:  1FEB2025 20:27:22  18.2S   69.8W MB=4.5  GUC    TARAPACA, CHILE              

P: 28JAN2025 169316    18.0S   69.0W 4.0-5.6 BAAAA  So. Peru/Bolivia           

 

GUC reported this earthquake was felt with intensity  IV in  Arica and Parinacota at Arica, Codpa, Pocon Chile, San Miguel de Azapa and Putre III in Cuya, Chile.

 

O:  1FEB2025 18:16:25  19.4N   64.0W MD=4.1  EMSC   VIRGIN ISLANDS REGION        

P: 31JAN2025 169136    18.0N   65.0W 3.0-5.1 ABAAA  Leeward Islands            

 

O:  1FEB2025 11:28:26  21.2S   68.8W ML=4.1  EMSC   TARAPACA, CHILE              

P: 26JAN2025 169323    22.0S   68.0W 4.0-5.6 BAAAA  Argentina                  

P: 26JAN2025 169326    20.0S   69.0W 4.0-5.5 BBAAA  So. Peru/Bolivia           

 

O:  1FEB2025 10:05:59  28.1N  112.2W ML=3.6  EMSC   GULF OF CALIFORNIA           

P: 22JAN2025 169158    25.0N  109.0W 3.5-5.1 DCCAA  Gulf of California         

 

 

AFRICA AND EUROPE

 

O:  2FEB2025 01:35:54   9.2N   40.0E MB=4.6  EMSC   ETHIOPIA                     

P: 29JAN2025 169131    10.0N   40.0E 3.5-5.1 BAAAA  Ethiopia                   

 

O:  1FEB2025 16:21:17  49.6N   34.3E MB=3.6  EMSC   UKRAINE                      

 

O: 01FEB2025 12:51:46  36.6N   25.7E mb=4.3  EMSC   DODECANESE ISLANDS, GREECE

O: 01FEB2025 13:29:56  36.6N   25.7E mb=4.4  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 06:48:09  36.6N   25.7E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O: 02FEB2025 07:22:05  36.6N   25.7E mb=4.8  EMSC   DODECANESE ISLANDS, GREECE

O:  1FEB2025 10:16:37  36.6N   25.7E MW=4.0  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 BAAAA  Aegean Sea                 

 

SOUTHWEST PACIFIC

 

O:  1FEB2025 12:43:29  23.0S  171.4E MB=5.1  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 24JAN2025 169327    22.0S  171.0E 4.0-5.8 CAAAA  Loyalty Islands            

 

O:  1FEB2025 13:52:26  23.6S  177.0W MB=5.0  EMSC   SOUTH OF FIJI ISLANDS        

P: 23JAN2025 169335    23.0S  177.0W 4.0-5.6 CAAAA  Tonga Islands              

 

OCEAN RIDGES

 

O:  1FEB2025 16:13:21  60.0S   27.0W MB=4.9  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 27JAN2025 169356    60.0S   26.0W 4.0-5.9 BAAAA  So. Sandwich Islands       

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia

today.

 

JAPAN AND KURIL ISLANDS

 

No earthquakes of M>=4 were located in Japan or the Kuril Islands today.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

 

O:  1FEB2025 09:13:30  31.6N  115.1W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO      

P: 29JAN2025 169210    32.4N  115.8W 2.5-4.8 AAAAA  So. California             

 

O: 01FEB2025 11:19:25  33.3N  116.4W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O:  1FEB2025 09:06:25  33.7N  116.7W ML=2.3  EMSC   SOUTHERN CALIFORNIA          

P: 29JAN2025 169211    33.4N  116.7W 2.5-4.7 AAAAA  So. California             

 

O:  1FEB2025 17:05:50  36.0N  117.7W ML=2.1  EMSC   CENTRAL CALIFORNIA           

P: 26JAN2025 169175    36.9N  117.4W 2.5-4.7 CAAAA  California/Nevada area     

 

O:  2FEB2025 03:17:15  36.8N  121.5W MD=2.0  EMSC   CENTRAL CALIFORNIA           

P: 31JAN2025 169183    37.1N  121.5W 2.5-5.0 AAAAA  Central California         

 

O:  1FEB2025 22:54:31  39.2N  119.1W ML=3.1  EMSC   NEVADA                       

P: 28JAN2025 169179    38.8N  119.6W 2.5-4.8 BAAAA  California/Nevada area     

 

NEIC reported an earthquake of M 3.2 in Nevada was felt with moderate intensity up to II-III in the area(s) of Nevada at Yerington.

 

O:  2FEB2025 00:56:16  39.2N  122.9W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P: 30JAN2025 169185    39.4N  123.3W 2.5-4.6 AAAAA  Central California         

 

O: 02FEB2025 04:59:56  40.3N  124.7W MD=2.4  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 01FEB2025 14:46:37  40.4N  124.8W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 02FEB2025 01:04:06  40.4N  124.9W MD=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 02FEB2025 01:10:45  40.4N  125.1W ML=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 02FEB2025 01:40:38  40.4N  124.9W MD=2.2  EMSC   OFFSHORE NORTHERN CALIFORNIA

O:  1FEB2025 21:33:07  40.3N  124.5W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 25JAN2025 169255    40.2N  124.2W 2.5-4.4 CAAAA  Off Coast of No. Calif     

 

ALASKA

 

O: 01FEB2025 23:44:54  52.1N  168.6W mb=4.1  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

O:  1FEB2025 07:01:34  52.0N  170.6W MB=4.2  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 29JAN2025 169273    52.4N  170.7W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

O:  1FEB2025 12:15:49  53.1N  167.1W ML=4.3  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 29JAN2025 169276    53.5N  167.3W 3.5-5.1 AAAAA  Fox Islands, Aleutians     

 

NEIC reported an earthquake of M 4.4 in Unalaska, Alaska (Fox Islands) was felt with moderate intensity up to II-III in the area(s) of Unalaska, Alaska (Fox Islands) at Unalaska.

 

O:  1FEB2025 17:36:50  55.8N  158.5W ML=3.4  EMSC   ALASKA PENINSULA             

P: 25JAN2025 169287    54.3N  161.4W 3.5-4.9 CABAA  Unimak Islands, Aleutians  

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O: 01FEB2025 14:38:37  31.6N  104.4W ML=2.5  EMSC   WESTERN TEXAS

O:  1FEB2025 12:58:07  31.5N  104.2W ML=2.4  EMSC   WESTERN TEXAS                

P: 27JAN2025 169209    31.6N  103.6W 2.0-4.4 BAAAA  SW U.S.A                   

 

O:  1FEB2025 10:54:43  31.9N  101.9W ML=2.3  EMSC   WESTERN TEXAS                

O: 02FEB2025 07:17:32  32.4N  102.1W ML=2.1  EMSC   WESTERN TEXAS

O: 02FEB2025 07:22:04  32.4N  102.1W ML=2.1  EMSC   WESTERN TEXAS

P: 27JAN2025 169209    31.6N  103.6W 2.0-4.4 BABAA  SW U.S.A                   

 

 

EASTERN U.S./CANADA

 

No earthquakes of M>=1 were located in the Eastern U.S. or Canada today.

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

STRONG ANTIPODAL PAIR IN SUMATRA; THEN ECUADOR; SOUTH AMERICA WATCH EXTENDED

 

EARTHQUAKE SUMMARY FOR JANUARY 31, 2025

 

 

A strong M 5.8 (EMSC, NEIC) to 6.2 (BMG, GEONET) earthquake occurred today in northern Sumatra, Indonesia. It was followed later in the day by a moderately strong M 5.5-5.8 near the antipode in Ecuador. This type of antipodal triggering is common between large events in Northern South America and Sumatra, Indonesia as previously discussed in this summary.

 

For example when the last earthquake hit Ecuador with M>=5.5 on March 18, 2023 (M 6.8)  it was followed by an M 6.1 in northern Sumatra on April 3, 2023. At that time this summary noted the antipodal nature of these events as:

 

 

"The strongest earthquake in the world today was an M 6.1-6.4 in the region of Northern Sumatra, Indonesia. NEIC reported maximum intensity IV in Sumatra at Gunung Stoli, Kabanjahe, Padang, and II-III in Payakumbuh, and in Malaysia at Klang, Bandar Baru, Shah Alam, Selangor, Subang Jaya, Kuala Lumpur and Ayer Molek. This epicenter is very close to the antipode of the M 6.7 in Ecuador on March 18, 2023 and was probably promoted by antipodal focusing of seismic waves from Ecuador. This possibility had been raised when the earthquake in Venezuela occurred on March 18 in this summary as:

 

The antipode of today's event in Ecuador is at 3N 100E in the Andaman Islands, India and Sumatra Indonesia which is an active seismic zone. Seismic enhancement in this area is likely. A minor earthquake hit at the antipode yesterday" (March 18, 2023)

 

The last earthquake of M>=5.8 in northern Sumatra within about 250 km of today's epicenter occurred as an M 5.9 on May 27, 2024 but the last such event of M>6.2 was an M 6.6 on May 14, 2021. At that time this summary noted:

 

"Today's earthquake in the Nias area of Indonesia is the strongest in more than 30 years. An M 6.8 was recorded about 300 km to the southwest of today's epicenter on October 15, 1990. The only earthquake of M>=5.6 in the area since 1990 was an M 5.9 on June 12, 2018. The antipode to today's event is in Ecuador

at 0N 83W, and may see enhanced antipodal seismicity in the next several days."(May 14, 2021)

 

BMG reported today’s earthquake was felt with damage at intensity VIII in Simeulue Barat, Simeulue, and Aceh, Sumatra and IV in Kab. Aceh Selatan, Ba

kongan, Kluet, Labuhan Haji, Meulek, Sawang, Kluet, and Kota; in Aced Utara at Sawang; at Barat Daya at Blang Pidie, Rangan, Manggeng, Susoh, Setia, Lembah Sabil and in Lombok Timur at Labuhan Haji. Lesser shaking at intensity III was reported from Kab Aceh Selatan, Tenggara, Timur, Tengah, Barat, Utara, Barat Daya, Jaya, Tamiang, Pidie, Simeulue, Bireuen, Gayo Lucs, Nagan Raya, Meriah, Ihokseumawe, Langsa, among others. NEIC reported it was felt with intensity IV in Banda Aceh and II in Medan, Northern Sumatra.

 

News reports on the internet indicate this event shook buildings and caused panic among residents who rushed from their houses and hospitals and who recalled the M>9.1 earthquake of December 26, 2004 near this location which triggered a tsunami killing more that 250,000 people around the Indian Ocean. No tsunami threat has been identified with today's earthquake. There were no immediate reports of major damage or casualties from today's earthquake.

 

The earthquake Sumatra may have been triggered by SFE from solar flare 9710, a C4.8 class event as it occurred when this flare output was near maximum. Data for this flare from SWPC follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

9710       1101   1108      1116   C4.8      (January 31, 2025)   4.1E-03  

No Sumatra M 5.8-6.2 11:03 UT

 

These earthquakes in Sumatra are at the third node (120 degrees) from the M 7.0 off Northern California of December 5, 2024 and at the fifth node (72 degrees) from the M 7.4 in Vanuatu of December 17, 2025 and may have been promoted by energy from those sources. Other notable earthquakes today at the fifth node from Vanuatu included the M 5.0 in the Near Islands, Alaska and an M 4.5 in the Fox Islands, Alaska.

 

Forecast 169095 had expected a moderately strong earthquake in Sumatra within  about 200 km of today's epicenter was likely at the end of January, 2025.

 

O: 31JAN2025 11:24:30   3.1N   96.9E ML=2.7  EMSC   NORTHERN SUMATRA, INDONESIA

O: 31JAN2025 11:17:58   3.2N   97.0E ML=3.8  EMSC   NORTHERN SUMATRA, INDONESIA

O: 31JAN2025 11:03:42   3.3N   97.1E MB=5.8  EMSC   NORTHERN SUMATRA, INDONESIA  

O: 31JAN2025 11:03:42   3.2N   97.0E ML=5.8  NEIC   Northern Sumatra        

O: 31JAN2025 11:03:42   2.9N   97.2E MB=6.2  GEONET NORTHERN SUMATRA, INDONESIA  

O: 31JAN2025 11:03:42   2.9N   97.2E MB=6.2  BMG    NORTHERN SUMATRA, INDONESIA  

P: 24JAN2025 169095     1.0N   98.0E 4.0-5.4 CCAAA  So. Sumatera               

 

The earthquake in Ecuador of M 5.5 (NEIC) to 5.7 (GFZ) was reported by NEIC with slight damage and intensity VII in Napo, Ecuador at Archidona and Tena and VI in Tulcan, Carchi; IV was felt in Quito, Pichincha, and in Tungurahua at Banos, Pillaro and in Eloy Alfar, Guayas, Ecuador. The local network (QUI) gave this event M 5.8 as did BGS. It was followed by a series of moderate aftershocks. EMSC reported very strong shaking in Ecuador at Quito, Mindo where it opened windows. Al felt strongly at La joya de los Sachas and with moderate intensity at Samborondon, Ecuador.

 

This is the strongest earthquake in Ecuador or northern Peru within about 200 km of this epicenter in nearly two years. An M 6.8 hit south of this on March 18, 2023. At the time this summary noted:

 

 

A strong M 6.7-6.8 hit the coast of Western Ecuador and northern Peru today.

NEIC reported it was felt with maximum intensity IX at Balao, Guayas, Ecuador; VIII in Naranjito; VI in Naranjal, VI in Plahyas, Guayaquil, Santa Lucia, Cuenca Azuay, V in Samborondon, Eloy Alfaro among others. Initial news reports indicate extensive but minor damage to buildings and structures with at least eleven people killed in the quake including one in Peru. Much of the damage and casualties occurred in Cuenca and Machala when walls collapsed. The epicenter was near Balao about two hours from Guayaquil. It was felt in at least 13 provinces of Ecuador. Many communities lost power and a two-story home and wharf collapsed. No tsunami was observed nor expected. 

 

The time of this earthquake in Ecuador was within about 12 minutes of local solar noon at a longitude near the longitude of maximum tidal stress (see above) with the coming new moon.  It is likely this earthquake was promoted by strong tidal stresses associated  with this new moon ...

 

 

Today's earthquake of M 6.7 is the strongest in Ecuador within about 200 km of this epicenter in at least 35 years. An M 7.5 hit about 300 km northeast of this on February 22, 2019 and another was an M 7.1 on August 12, 2010. These were both at intermediate epicenters and were felt on the surface with moderate intensity as reported on February 22, 2019:

 

 

"A major earthquake of M 7.5 (EMSC) to 7.7 (IGP) hit the coast of Ecuador today. It occurred at an intermediate depth of 132 km and was felt with moderate intensity throughout much of Ecuador. NEIC reported maximum intensity V-VII in Ecuador was felt at Gualaceo, Azuay, Guayaquil, Loja, Eloy Alfaro, Puebloviejo (VI), La Troncal, Azogues (VII), Gualaceo,  Ecuador in Peru at Piura, Tarapoto, Iquitos, Jaen, Yunmaguas, Tumbes (VII), and with intensity VI in Ecuador at Puyo Pastaca, Banos, Tungurahua, Ambato, Cuenca, Zamora, Santa Lucia, Machala, Playas Guayas, Portoviejo, Manta, Salinas and in Peru at Moyobamba, Colan, Huanchanco, and in general within about 1000 km from the epicenter. IGP reported intensity V in Pastaza with an aftershock of M 5.7 felt with III in Zarumilla, Peru. Some damage was reported. News sources on the web reported  NEIC reported this aftershock at M 5.5 was felt in Ecuador with intensity V in Guayaquil, and Santa Lucia, and II-III in Ecuador at Eloy Alfara, Guayas, Cuenca Azuay, Machala, Pajan, Santa Elena, Montecristi, Banos and Manta, Ecuador. No injuries were associated with the quake. This was probably due to the intermediate depth. A shallow quake would have caused considerable damage and destruction. A slightly larger quake of M 7.8 on April 16, 2016 killed more than 700 people and destroyed hundreds of buildings and cost more than $3 billion in damages. Earthquakes of this size in Ecuador can help promote seismicity in California several months later. This summary will follow this in future issues.

 

...

 

The last earthquake located within about 250 km of today's M 7.5 occurred more than 30 years ago. The only comparable event in the region in this time period was the M 7.8 off Ecuador on April 16, 2016. That event occurred about 350 km northwest of today's epicenter." (February 22, 2019, March 18, 2023)

 

 

The mainshock was followed by a series of light to moderate aftershocks.

 

This earthquake in Ecuador is at 148 degrees from the M 7.1 in Tibet of January 1, 2025 and at 140 degrees from the M 6.8 in Kyushu, Japan of January 7, 2025 and at the sixth node from the M 7.0 off Northern California of December 5, 2024 and may have been promoted by energy from that source.

 

Forecast 169103 had expected a moderately large earthquake was likely in Ecuador

within about 10-100 km of today's epicenter at the end of January, 2025.

 

O: 01FEB2025 01:49:39   0.9S   78.1W ML=3.7  EMSC   ECUADOR

O: 01FEB2025 01:50:47   0.9S   78.1W ML=4.0  EMSC   ECUADOR

O: 01FEB2025 11:05:50   0.9S   78.1W mb=5.1  EMSC   ECUADOR

O: 31JAN2025 23:02:28   0.9S   77.9W mb=5.5  EMSC   ECUADOR

O: 31JAN2025 23:02:29   0.8S   78.1W MB=5.5  ANSS   WNW OF ARCHIDONA ECUADOR     

O: 31JAN2025 23:10:14   0.7S   77.1W ML=5.8  BGS    ECUADOR

O: 31JAN2025 23:10:14   0.9S   77.9W ML=5.8  QUI    ECUADOR

O: 31JAN2025 23:12:57   0.9S   78.2W ML=3.5  EMSC   ECUADOR

O: 31JAN2025 23:15:10   0.9S   78.2W ML=3.6  EMSC   ECUADOR

P: 26JAN2025 169103     1.0S   77.0W 4.0-5.8 BAAAA  Ecuador                    

 

 

Enhanced seismicity near the equator had been expected in this summary at this time. For example in the previous issue of this summary it was noted:

 

"Minor storms are expected in the geomagnetic field in the next two days by SWPC. Such storms could break the current climate consisting of the lack of strong earthquakes. This could occur as early as today. Events triggered by the geomagnetic excursion would be likely near the geomagnetic equator or at high latitudes. A strong event may yet occur in the area of South or Central

America during these storms, although the area is currently uncommonly quiet." (January 31, 2025)

 

The strongest earthquake in the U.S. or Canada today was an M 4.9 (NEIC) to M 5.0 (GSRAS)  in the Near Islands, Alaska. It was not reported felt in this remote area. This earthquake occurred 17 minutes after the M 5.5 in Ecuador at a distance of 102 degrees from Ecuador. This is a distance at which seismic body waves are refracted and reflected off internal earth boundaries and return to the surface from a large earthquake and can trigger seismicity following that event. In this case the PP wave from Ecuador was coincident with the M 4.9 in the Near Islands, Alaska and likely triggered that event.

 

This is the strongest earthquake within about 200 km of this epicenter in the Near Islands, Aleutians, Alaska since an M 5.0 on October 21, 2022. The last  event of larger magnitude in the Near Islands was an M 5.2 on March 1, 2022.

 

Today's Near Islands quake is likely to have been promoted by the new moon of January 29 which had its maximum stress near the longitude if the Near Islands earthquake.

 

Forecast 169278 had expected enhanced seismicity in the Near Islands was likely at the end of January, 2025.

 

O: 31JAN2025 23:19:31  53.0N  173.4E MB=4.9  EMSC   NEAR ISLANDS, ALEUTIAN ISLANDS

O: 31JAN2025 23:19:31  53.0N  173.4E MB=5.0  GSRAS  NEAR ISLANDS, ALEUTIAN ISLANDS

P: 26JAN2025 169278    54.0N  170.0E 4.0-5.9 BABAA  Near Islands               

 

A strong eruption of Santiaguito Volcano in Guatemala occurred on January 27, 2025. The eruption included red hot rocks and plumes of smoke and ash rising nearly 1200 meters. Santiaguito is a part of the Santa Maria Volcano complex near Quetzaltenango. A major eruption in the area occurred in 1902 killing more than 5000 people.

 

The swarm of earthquake in the Dodecanese Islands of Greece continued today.

This series is near the volcanically active area of Santorini. Local geoscientists fear this may precede an eruption of the local volcanic sites. While a massive volcanic eruption near 1600 BC at this location changed the history of Europe, there have been minor episodes such as the current activity in recent years which did not end in volcanism. This activity began near the new moon of January 29, 2025 and may have been promoted by strong tidal stresses from that alignment. This summary has been following these events over the past several days. The strongest earthquake in this swarm to date occurred today as an M 4.3 at 12:51 UT. In the previous issue it was noted:

 

 

"NEIC reported an earthquake of M 4.4 in Attiki, Greece was felt with moderate intensity up to II-III in the area(s) of Attiki, Greece at Amarousion, Athens, Kapandrition, Neon, Viron, Ayios Paneleimon and II in Melissia, Moskhaton, Vrilissia, Zefirion, Aghios Dimitrios and in Kimi Evvoia. The area of Greece has seen enhanced seismicity with the new moon of January 29 as it lies at a latitude where tidal stresses were maximized with that new moon as reported in previous issues of this summary:

 

"A strong series of minor earthquakes has been occurring in the Dodecanese Islands of Greece over the past day. It is expected to continue through the end of January. These epicenters are at a longitude which is at local solar midnight when the new moon occurs on January 29, 2025 (see above) and could be enhanced at that time." (January 29, 2025)

 

 

An earthquake of M 4.1 in the Aegean Sea was also felt in Greece today. EMSC reported it as a light to moderate shaking in the Aegean Sea at Agios Loukas, Glazia, Eretria, Oropos, Kumi, Vasiliko, Dionysos, Chalkida, Nea Makri, Kifisia, Acharnes, Melissia, Amarousio among others." (January 31, 2025)

 

These events in the Dodecanese Islands are at 142 degrees from the M 7.4 in the

Vanuatu Islands of December 17, 2024 and ate at 51.4 degrees (Node 7) from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from  that source.

 

Forecast 169173 had expected enhanced seismicity within about 100 km of the

events in Santorini was likely at the end of January or early February, 2025.

 

O: 01FEB2025 05:31:34  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O:  1FEB2025 12:51:44  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 BAAAA  Aegean Sea                 

 

A moderate earthquake today was also recorded as an M 5.3 in the Central Mid-Atlantic Ridge. This epicenter is near the antipode of recent moderate to moderately strong seismicity in the northern New Ireland/New Britain area. This epicenter is also at 142 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025. Reflected and refracted seismic energy from the inner-outer core boundary returns to the surface at this distance and often enhances seismicity at this distance from major earthquakes following those events. It is also likely it was promoted by strong tidal stresses from the new moon of January 29, 2025 as it lies at a longitude where such stresses were maximized during this event as reported in  previous issues of this summary:

 

 

"The new moon will arrive on January 29, 2025 at 12:36 UT. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon, Santa Cruz, and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (January 29, 2025)

 

Similar earthquakes in the Central Mid-Atlantic Ridge have most recently occurred as events  of M 5.5 on June 21, 2024 and November 6, 2023. The last of larger magnitude in the region was an M 5.9 on September 11, 2023. At the time this summary noted:

 

 

"An earthquake of M 5.9 also occurred today in the Central Mid-Atlantic Ridge area. It was not reported felt in this remote area. The last earthquake of M>=5.9 within about 200 km of this epicenter was an M  6.9 on September 18, 2020. At the time this summary noted in this regard:

 

 

"Strong earthquakes in the mid-Atlantic in the past month have included an M 6.5 about 300 km west of today's event on August 30 and an M 6.6 more than 1000 km to the northwest on September 6, 2020. The last earthquake within about 250 km  of today's event in the central mid-Atlantic with M>=6.7 occurred more than

30 years ago, this being the strongest quake in the area since an M 6.7 on October 7, 1975 - the largest historical event recorded in this region and the only other such event of M>=6.7." (September 18, 2020, September 11, 2023)

 

Today's M 5.3 in the Central Mid-Atlantic area may have been promoted by SFE from flare 9660 as it occurred at the start of the at C2.5 flare. Data from

SWPC for this event follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

9660       0905   0908      0923   C2.5      (January 31, 2025)   2.7E-03  

Central Mid-Atlantic M 5.3 09:04 UT

Virgin Islands, M 3.8 09:04 UT

 

 

Forecast 169086 had expected today's event within about 100 km in the Central

Mid-Atlantic Ridge was likely in late January, 2025.

 

O: 31JAN2025 09:04:51   0.5N   25.1W MB=5.3  EMSC   CENTRAL MID-ATLANTIC RIDGE   

P: 25JAN2025 169086     1.0N   26.0W 4.0-6.2 CAAAA  Central Mid-Atlantic Ridg  

 

An unusual earthquake of M 3.7 occurred north of New Zealand today.  The last earthquake within about 200 km of this epicenter north of New Zealand with M>=3.7 occurred on September 8, 2015 with M 4.4 and prior to that as an M 4.4 on July 6, 1997.

 

This event is at 103-104 degrees from the M 7.1 in Tibet of January 7, 2025 and joins the increasing series of unusual events at this distance (most notably in New Zealand and eastern U.S - Maine, Texas etc.) from Tibet since that mainshock occurred.

 

This earthquake of M 3.7 is at 103-104 degrees from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from that source. Other earthquakes at this distance from Tibet today occurred in the Fiji Islands (M 4.4, 4.4); off Northern California (M 3.4); and Quebec, Canada.

 

O:  1FEB2025 08:45:10  32.5S  176.4E MW=3.7  EMSC   NORTH OF NEW ZEALAND         

P: 19JAN2025 169072    35.0S  179.0E 3.0-4.4 CCCAA  North Island, N.Z.         

 

O: 31JAN2025 22:23:34  40.3S  176.1E ML=3.4  EMSC   NORTH ISLAND OF NEW ZEALAND  

O:  1FEB2025 09:26:40  42.3S  174.9E MW=4.7  EMSC   OFF E. COAST OF S. ISLAND, N.Z

O: 01FEB2025 09:26:40  42.3S  174.9E mw=4.7  ANSS   Houghton Bay New Zealand

P: 27JAN2025 169350    41.0S  174.0E 3.0-4.9 BBAAA  So. Island, N.Z.           

 

This is the second unusual earthquake north of New Zealand in the past week.

An earthquake of M 4.9 northwest of New Zealand occurred on January 28, 2025.

This led this summary to issue an unusual earthquake watch for the coast of South America for late January, 2025. This warning based on the occurrence of strongly enhanced seismicity in South America following unusual earthquakes north of New Zealand was vindicated when today's M 5.5-5.8 hit central Ecuador. .

 

So, with this in mind, the occurrence of an M 8.3 earthquake in the area of Coquimbo, Chile on September 17, 2015 is of some interest. This event a week after the last moderate earthquake near today's epicenter north of New Zealand was the strongest in the area of Chile (18S-50S latitude) in at least 35 years with the exception of the M 8.8 south of this on February 27, 2010 which has been discussed above and in previous issues of this summary. At the time  of the September, 2015 quake, this summary noted the seismic history of the area as:

 

 

"Today's earthquake is the strongest within about 250 km of this epicenter in at least 25 years. The last major quake, and the only such event, in the area was an M 7.1 on October 15, 1997. Great earthquakes in the area have previously been recorded on April 6, 1943 (M 8.3); August 17, 1906 (M 8.6);  July 8, 1730 (M 8.5) and May 14, 1647 (M 8.5)." (September 16, 2015)

 

While the predicted quality of these seemingly random sets of earthquakes between unusual areas north of New Zealand and the coast of South America is not yet certain, they are certainly suggestive. It would therefore appear that canceling the forecast for South America at this time may be premature. Therefore this summary continues that forecast with the potential for a further strong event, probably in Chile, in the first week of February, 2025.

 

The unusual earthquake northwest of New Zealand on January 28, 2025 was followed 30 minutes later by an M 5.1-5.7 earthquake in the area of southern North Island, New Zealand which was discussed at the time in this summary. Like that active today's unusual event north of New Zealand was followed about 40 minutes later by an M 4.7 in northern South Island, New Zealand. This coincidence was addressed in this summary on January 29, 2025 as:

 

 

"Minutes after the unusual earthquake of M 4.7 northwest of New Zealand an M 5.1 was widely felt in the Manawatu-Wanganui region north of Wellington, New Zealand. NEIC reported it was felt with maximum intensity V in Feilding and IV in Minatangi, Levin, Palmerston North, Rongotea, Wanganui, Masterton, Eketahuna, Taihape and in Wellington at Featherston, Kapiti, Otaki, Porirua and Upper Hutt. Also felt in south Island with intensity II at Cheviot, Centerbury.

and III in Hawke's Bay at Napier, Otane.  GeoNet reported this earthquake at M 5.7 was felt with moderate to strong intensity in the area southeast of Wellington, New Zealand and in southern North Island and northern South Island. 23082 reports of felt events were made of which 7054 reported weak and 9890 light intensity with 5227 reports of moderate shaking and 822 with strong and 45 severe and 42 with extreme intensity came from the area. The last earthquake within North Island within about 150 km of this epicenter with M>=5.7 occurred on February 15, 2023 with M 5.7. This is an unusual epicenter being about 100 km east of most of the activity in this region of New Zealand. Unusual activity near 176E and east of that that tends to be confined to northern North Island, New Zealand and is generally at intermediate depth" (January 29, 2025)

 

There is a natural inclination to wonder about the relation of unusual earthquakes north of New Zealand and subsequent widespread moderate earthquakes minutes later in the area near the Cook Strait and Wellington, New Zealand.

This is a question for further consideration.

 

An M 4.7-5.3 earthquake east of Seddon, New Zealand followed the unusual M 3.7 north of this event 30 minutes later today.  GEONET reported this earthquake was felt with light to moderate intensity in the area southeast of Seddon, New Zealand and in southern North Island and northern South Island. 582 reports of felt events were made of which 438 reported weak and 135 with light intensity with 9 reports of moderate shaking and 0 with strong and 0 severe and 0 with extreme intensity came from the area.  This earthquake is the strongest within about 150 km off the east coast of South Island New Zealand since an M 5.4 on October 12, 2015. At the time this summary noted:

 

 

"GeoNet reported an earthquake of M 4.4 was felt with moderate intensity east of Pongaroa, North Island, New Zealand. Felt with weak to moderate intensity throughout most of southern North Island with maximum intensity at Dannevirke and Awapuni, New Zealand. The event of M 4.1 was felt with moderate intensity east of Pongaroa, North Island, New Zealand. Felt with weak to moderate intensity throughout most of southern North Island including areas from Kapiti and Carterton north to Waipuku and Kimbolton, North Island, New Zealand. These are aftershocks of the earlier M 5.7 which was widely felt in New Zealand causing light damage in the region.  The last earthquake of M>=5.4 within about 150 km of this epicenter occurred on September 22, 2014 (M 5.4). The last of M>=5.8 on January 20, 2014 with M 6.2." (October 12, 2015)

 

This earthquake in New Zealand is at 107 degrees from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from that source.

 

Forecast 169350 had expected enhanced seismicity in this area was likely at the

end of January, 2025.

 

 

O: 31JAN2025 22:23:34  40.3S  176.1E ML=3.4  EMSC   NORTH ISLAND OF NEW ZEALAND  

O:  1FEB2025 09:26:40  42.3S  174.9E MW=4.7  EMSC   OFF E. COAST OF S. ISLAND, N.Z

O:  1FEB2025 09:26:40  42.3S  174.9E MW=5.3  GEONET OFF E. COAST OF S. ISLAND, N.Z

O: 01FEB2025 09:26:40  42.3S  174.9E mw=4.7  ANSS   Houghton Bay New Zealand

P: 27JAN2025 169350    41.0S  174.0E 3.0-4.9 BBAAA  So. Island, N.Z.           

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 31JAN2025 08:48:35  28.1N   52.3E mb=4.3  EMSC   SOUTHERN IRAN

O: 31JAN2025 21:08:10  28.1N   52.5E mb=4.1  EMSC   SOUTHERN IRAN

O:  1FEB2025 05:02:45  27.4N   52.0E MB=3.9  EMSC   SOUTHERN IRAN                

P: 24JAN2025 169169    28.0N   52.0E 3.5-5.2 CAAAA  So. Iran/Persian Gulf      

 

INDONESIA AND PHILIPPINES

 

O: 31JAN2025 11:24:30   3.1N   96.9E ML=2.7  EMSC   NORTHERN SUMATRA, INDONESIA

O: 31JAN2025 11:17:58   3.2N   97.0E ML=3.8  EMSC   NORTHERN SUMATRA, INDONESIA

O: 31JAN2025 11:03:42   3.3N   97.1E MB=5.8  EMSC   NORTHERN SUMATRA, INDONESIA  

O: 31JAN2025 11:03:42   2.9N   97.2E MB=6.2  GEONET NORTHERN SUMATRA, INDONESIA  

O: 31JAN2025 11:03:42   2.9N   97.2E MB=6.2  BMG    NORTHERN SUMATRA, INDONESIA  

P: 24JAN2025 169095     1.0N   98.0E 4.0-5.4 CCAAA  So. Sumatera               

 

O: 31JAN2025 21:11:23   0.7S   99.1E ML=3.9  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 26JAN2025 169115     2.0S   99.0E 4.0-5.4 BBAAA  So. of Sumatera            

 

O: 31JAN2025 07:07:59   5.0S  102.9E MB=4.5  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 21JAN2025 169116     5.0S  103.0E 4.0-5.4 CAAAA  So. of Sumatera            

P: 28JAN2025 169116     7.0S  104.0E 4.0-5.5 BBAAA  So. of Sumatera            

 

O: 31JAN2025 13:38:12   5.7S  147.3E MB=4.4  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 28JAN2025 169108     6.0S  147.0E 4.0-5.5 BAAAA  New Ireland                 

 

O:  1FEB2025 02:30:05   2.6S  135.1E ML=4.0  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 29JAN2025 169119     3.0S  138.0E 4.0-5.5 AACAA  West Irian, PNG            

 

O:  1FEB2025 02:02:35   6.0S  104.2E ML=3.5  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 30JAN2025 169114     6.0S  105.0E 4.0-5.4 AAAAA  So. of Java                

 

O: 31JAN2025 18:11:10   6.8S  129.8E MB=4.5  EMSC   BANDA SEA                    

O: 31JAN2025 18:11:10   6.8S  129.8E MB=5.1  BMG    BANDA SEA                     

P: 27JAN2025 169122     7.0S  130.0E 4.0-5.4 BAAAA  West Irian, PNG            

 

BMG  reported an earthquake of M 5.1 in the Banda Sea, Indonesia was felt with  intensity up to II in the area(s) of  Kab. Maluku Barat Daya at Dawelor Dawera and I in Kap Kepulauan Tanimbar at Selaru, Wer Tamrian, Maktian and Wuar Labobar, Indonesia.

 

O:  1FEB2025 00:55:24   7.4S  128.4E MB=4.5  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 29JAN2025 169099     8.0S  129.0E 4.0-5.6 AAAAA  Banda Sea                  

 

O: 31JAN2025 10:37:00   7.6S  130.8E ML=4.0  EMSC   KEP. TANIMBAR REGION, INDONESI

P: 29JAN2025 169099     8.0S  129.0E 4.0-5.6 AABAA  Banda Sea                  

 

O:  1FEB2025 00:40:17   8.7S  110.3E MW=5.0  EMSC   JAVA, INDONESIA              

O:  1FEB2025 00:40:17   8.7S  110.3E MW=5.1  BMG    JAVA, INDONESIA              

P: 31JAN2025 169114     9.0S  111.0E 4.0-5.5 AAAAA  So. of Java                

 

BMG reported an earthquake of M 5.2 South of Java, Indonesia  was felt with  intensity up to VII in the area(s) of South of Java, Indonesia  at Station Pacitan, Java and III in Kab. Klaten at Wedi, Kulon Progo at Panjatan, Galur, Sentolo; Bantul, Gunungkidul, Sleman, Ponorogo, Pasuruan, Mojokerto, Bojonegoro and II in Ciamis, Subang, Pangandaran, Cilacap, Banyumas, Purbalingga, Banjarnegara, Kebumen, Purworejo. Wonosobo. Magelang. Klatan, among others.

NEIC reported it was felt with intensity III in Yogyakarta, Indonesia at Depok and II in Sewon and Yogyakarta.

EMSC reported strong short shaking in Indonesia at Kasihan, Kasongan Bantul and Tempel, Terasa.

 

 

CENTRAL AND SOUTH AMERICA

 

O: 31JAN2025 18:22:08  11.4N   86.9W ML=4.5  EMSC   NEAR COAST OF NICARAGUA      

P: 24JAN2025 169143    11.0N   86.0W 3.5-5.2 CAAAA  Nicaragua                   

 

O: 01FEB2025 02:40:02  14.4N   92.7W mb=4.5  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 01FEB2025 02:07:05  14.6N   94.3W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 31JAN2025 22:19:00  14.6N   94.3W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 01FEB2025 04:17:39  15.4N   94.6W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO

O: 31JAN2025 06:59:26  13.3N   93.2W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 30JAN2025 169128    14.0N   93.0W 3.5-5.7 AAAAA  Chiapas, Mexico            

P: 31JAN2025 169133    14.0N   92.0W 3.5-5.5 AAAAA  Guatemala                  

 

O:  1FEB2025 03:30:14  15.9N   98.9W ML=4.3  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 29JAN2025 169146    16.0N   98.0W 3.5-5.5 AAAAA  Oaxaca, Mexico             

 

O: 31JAN2025 07:03:41  19.6N  104.0W ML=3.4  EMSC   JALISCO, MEXICO

O: 31JAN2025 08:42:51  18.4N  106.1W ML=4.1  EMSC   OFF COAST OF JALISCO, MEXICO 

P: 25JAN2025 169141    18.0N  103.0W 3.5-5.3 CABAA  Michoacan, Mexico          

 

O: 31JAN2025 09:04:06  19.3N   64.5W MD=3.8  EMSC   VIRGIN ISLANDS REGION        

P: 31JAN2025 169136    18.0N   65.0W 3.0-5.1 ABBAA  Leeward Islands            

 

O: 31JAN2025 18:16:03  20.3S   69.0W MB=4.1  EMSC   TARAPACA, CHILE              

P: 26JAN2025 169326    20.0S   69.0W 4.0-5.5 BAAAA  So. Peru/Bolivia           

 

NEIC reported an earthquake of M 4.1 in Northern Chile was felt with moderate intensity up to II-III in the area(s) of Northern Chile at Iquique, Tarapaca.

 

O: 31JAN2025 09:56:08  24.3N  109.2W ML=3.8  EMSC   GULF OF CALIFORNIA

O: 31JAN2025 09:53:30  24.5N  109.1W ML=3.8  EMSC   GULF OF CALIFORNIA           

P: 26JAN2025 169158    24.0N  110.0W 3.5-5.1 BAAAA  Gulf of California         

 

O: 31JAN2025 22:19:14  29.2S   69.2W MB=4.4  EMSC   SAN JUAN, ARGENTINA           

P: 28JAN2025 169325    28.0S   68.0W 4.0-5.6 BBAAA  Argentina                  

 

O: 01FEB2025 01:49:39   0.9S   78.1W ML=3.7  EMSC   ECUADOR

O: 01FEB2025 01:50:47   0.9S   78.1W ML=4.0  EMSC   ECUADOR

O: 01FEB2025 11:05:50   0.9S   78.1W mb=5.1  EMSC   ECUADOR

O: 31JAN2025 23:02:28   0.9S   77.9W mb=5.5  EMSC   ECUADOR

O: 31JAN2025 23:02:29   0.8S   78.1W MB=5.5  ANSS   WNW OF ARCHIDONA ECUADOR     

O: 31JAN2025 23:10:14   0.7S   77.1W ML=5.8  BGS    ECUADOR

O: 31JAN2025 23:10:14   0.9S   77.9W ML=5.8  QUI    ECUADOR

O: 31JAN2025 23:12:57   0.9S   78.2W ML=3.5  EMSC   ECUADOR

O: 31JAN2025 23:15:10   0.9S   78.2W ML=3.6  EMSC   ECUADOR

P: 26JAN2025 169103     1.0S   77.0W 4.0-5.8 BAAAA  Ecuador                    

 

AFRICA AND EUROPE

 

O: 31JAN2025 09:01:20   8.2N   39.9E MB=4.7  EMSC   ETHIOPIA                     

P: 29JAN2025 169131    10.0N   40.0E 3.5-5.1 ABAAA  Ethiopia                   

 

O: 31JAN2025 12:08:29  35.3N   21.3E ML=3.6  EMSC   CENTRAL MEDITERRANEAN SEA    

P: 31JAN2025 169190    34.0N   25.0E 3.0-4.4 ABCAA  Crete                      

 

O: 31JAN2025 20:29:21  35.5N    3.6W ML=2.5  EMSC   STRAIT OF GIBRALTAR          

P: 21JAN2025 169195    37.0N    6.0W 3.5-5.3 CBBAA  Morocco/Spain              

 

O: 31JAN2025 07:36:03  37.5N   20.6E MW=4.2  EMSC   IONIAN SEA                   

P: 27JAN2025 169197    38.0N   20.0E 3.0-4.7 BAAAA  No. Greece                 

 

O: 01FEB2025 05:31:34  36.6N   25.6E mb=4.2  EMSC   DODECANESE ISLANDS, GREECE

O:  1FEB2025 12:51:44  36.6N   25.7E ML=4.3  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 BAAAA  Aegean Sea                 

 

SOUTHWEST PACIFIC

 

O:  1FEB2025 06:49:23   9.1S  158.7E MB=5.0  EMSC   SOLOMON ISLANDS               

O: 31JAN2025 12:04:11  10.6S  163.3E MW=5.4  EMSC   SOLOMON ISLANDS              

P: 30JAN2025 169311    10.0S  161.0E 4.0-5.4 AACAA  No. of Santa Cruz Islands  

 

O: 31JAN2025 10:29:51  25.1S  179.9E MB=4.4  EMSC   SOUTH OF FIJI ISLANDS        

O: 01FEB2025 01:46:27  25.4S  179.8E mb=4.4  EMSC   SOUTH OF FIJI ISLANDS

P: 26JAN2025 169336    21.0S  176.0E 4.0-5.6 BCCAA  Tonga/Fiji                 

 

O: 31JAN2025 19:50:10  15.8S  172.3W MB=4.7  EMSC   SAMOA ISLANDS REGION         

P: 28JAN2025 169312    15.0S  173.0W 4.0-5.4 BAAAA  Samoa Islands              

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  1FEB2025 04:49:07  30.1S  179.7E MB=4.5  EMSC   KERMADEC ISLANDS REGION      

O: 31JAN2025 15:58:05  30.7S  177.7W MB=4.9  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P: 29JAN2025 169343    30.0S  178.0W 4.0-5.5 AAAAA  No. Kermadec Islands       

 

O:  1FEB2025 08:45:10  32.5S  176.4E MW=3.7  EMSC   NORTH OF NEW ZEALAND         

P: 19JAN2025 169072    35.0S  179.0E 3.0-4.4 CCCAA  North Island, N.Z.         

 

O: 31JAN2025 22:23:34  40.3S  176.1E ML=3.4  EMSC   NORTH ISLAND OF NEW ZEALAND  

O:  1FEB2025 09:26:40  42.3S  174.9E MW=4.7  EMSC   OFF E. COAST OF S. ISLAND, N.Z

O: 01FEB2025 09:26:40  42.3S  174.9E mw=4.7  ANSS   Houghton Bay New Zealand

P: 27JAN2025 169350    41.0S  174.0E 3.0-4.9 BBAAA  So. Island, N.Z.           

 

JAPAN AND KURIL ISLANDS

 

O: 31JAN2025 09:10:21  25.4N  125.1E MB=4.6  EMSC   SOUTHWESTERN RYUKYU ISL., JAPA

P: 25JAN2025 169168    27.0N  125.0E 4.0-5.5 CBAAA  Ryukyu Islands             

 

O: 31JAN2025 22:16:53  30.9N  130.4E MB=4.4  EMSC   KYUSHU, JAPAN                

P: 28JAN2025 169193    31.0N  132.0E 3.5-4.9 BABAA  Kyushu, Japan area         

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 31JAN2025 07:28:02  31.6N  114.5W ML=3.9  EMSC   GULF OF CALIFORNIA           

O: 31JAN2025 22:32:04  31.6N  114.9W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO

P: 27JAN2025 169208    32.2N  114.1W 2.0-4.3 BAAAA  SW U.S.A                   

 

O: 31JAN2025 07:12:30  34.4N  119.7W ML=2.8  EMSC   SOUTHERN CALIFORNIA

O: 31JAN2025 07:07:19  34.4N  119.8W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 28JAN2025 169216    35.0N  119.2W 2.5-4.6 BAAAA  So. California             

 

O: 01FEB2025 00:24:04  36.8N  121.5W MD=2.3  EMSC   CENTRAL CALIFORNIA

O: 31JAN2025 13:47:21  36.9N  121.6W MD=2.4  EMSC   CENTRAL CALIFORNIA

O: 31JAN2025 12:34:23  37.0N  121.7W MD=2.2  EMSC   NORTHERN CALIFORNIA

O:  1FEB2025 06:32:17  36.6N  121.2W MD=2.0  EMSC   CENTRAL CALIFORNIA           

O: 31JAN2025 07:36:03  36.6N  121.2W MD=2.4  EMSC   CENTRAL CALIFORNIA           

P: 27JAN2025 169182    36.9N  121.7W 2.5-5.1 BAAAA  Central California         

 

O: 31JAN2025 07:20:32  37.5N  118.8W MD=2.6  EMSC   CENTRAL CALIFORNIA

O:  1FEB2025 06:21:24  37.4N  118.8W MD=2.7  EMSC   CENTRAL CALIFORNIA           

P: 31JAN2025 169176    37.3N  118.3W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 31JAN2025 19:01:01  38.8N  122.8W MD=2.5  EMSC   NORTHERN CALIFORNIA          

P: 24JAN2025 169185    38.8N  122.8W 2.5-4.4 CAAAA  Central California         

 

EMSC reported an earthquake of M 2.7 in the Geysers, California was felt with  intensity up to III in the area(s) of the Geysers, California at Geyserville, and II in Kelseyville, Middletown and Sacramento.

 

O:  1FEB2025 04:36:11  40.2N  121.1W MD=2.5  EMSC   NORTHERN CALIFORNIA          

O: 01FEB2025 05:07:23  40.2N  121.1W MD=2.7  EMSC   NORTHERN CALIFORNIA

P: 27JAN2025 169254    40.0N  123.0W 2.5-4.6 BABAA  Northern California        

 

NEIC reported earthquakes of M 2.7 and M 2.5 in Northern California was felt with moderate intensity up to IV in the area(s) of Northern California at Westwood and III in Chester and lesser shaking as far as Rancho Cordova, California.

This occurred at the antipode of TC Elvis and may have been triggered by antipodal

energy associated with that cyclone as noted in this summary:

 

Tropical Cyclone Elvis (12S) continued today in the area of the south Indian Ocean South of Madagascar with winds up to 45 kts.  It is expected to track to the southeast over the next several days. Around February 1, 2025 it could reach 40S 58E, an area antipodal to northern California. Some enhanced seismicity is likely off the coast of Northern California or in northern California near Chester at that time. A series of light earthquakes in this area today may precede the antipodal arrival of TC Elvis.

 

O: 31JAN2025 07:47:34  40.4N  127.2W ML=3.4  EMSC   OFF COAST OF NORTHERN CALIFORN

O: 01FEB2025 00:01:04  40.9N  127.2W ML=3.4  EMSC   OFF COAST OF NORTHERN CALIFORNIA

O: 31JAN2025 22:38:23  40.5N  123.4W MD=2.3  EMSC   NORTHERN CALIFORNIA          

P: 25JAN2025 169255    40.2N  124.2W 2.5-4.4 CAAAA  Off Coast of No. Calif     

 

ALASKA

 

O: 01FEB2025 07:01:40  52.2N  171.0W mb=4.3  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

O:  1FEB2025 01:52:46  52.2N  169.9W MB=4.1  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 29JAN2025 169273    52.4N  170.7W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

O: 31JAN2025 23:19:31  53.0N  173.4E MB=4.9  EMSC   NEAR ISLANDS, ALEUTIAN ISLANDS

O: 31JAN2025 23:19:31  53.0N  173.4E MB=5.0  GSRAS  NEAR ISLANDS, ALEUTIAN ISLANDS

P: 26JAN2025 169278    54.0N  170.0E 4.0-5.9 BABAA  Near Islands               

 

O: 31JAN2025 19:48:00  55.4N  159.0W ML=3.0  EMSC   ALASKA PENINSULA             

P: 25JAN2025 169287    54.3N  161.4W 3.5-4.9 CBBAA  Unimak Islands, Aleutians  

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 31JAN2025 14:58:04  48.3N  124.5W ML=2.0  EMSC   OLYMPIC PENINSULA, WASHINGTON

P: 28JAN2025 169269    48.9N  122.1W 2.0-3.9 BABAA  Washington state, U.S.     

 

O: 31JAN2025 16:42:27  61.5N  135.6W MB=3.8  ECAN OF CARMACKS, YT   

O: 31JAN2025 16:42:27  61.5N  135.6W ML=3.8  EMSC   SOUTHERN YUKON TERRITORY, CANA

P: 27JAN2025 169286    59.0N  136.0W 3.0-4.7 BCAAA  Southeast Alaska           

 

 

ROCKY MOUNTAINS REGION

 

O: 31JAN2025 10:02:39  31.7N  104.5W ML=2.0  EMSC   WESTERN TEXAS

O: 31JAN2025 21:06:16  31.6N  104.6W ML=2.0  EMSC   WESTERN TEXAS                

P: 27JAN2025 169209    31.6N  103.6W 2.0-4.4 BAAAA  SW U.S.A                   

 

O:  1FEB2025 05:48:04  37.3N  104.5W ML=2.1  EMSC   COLORADO                      

P: 26JAN2025 169188    37.1N  104.7W 2.0-3.9 BAAAA  Colorado area              

 

O:  1FEB2025 05:57:12  42.9N  111.1W ML=2.4  EMSC   SOUTHERN IDAHO               

P: 28JAN2025 169270    44.8N  111.9W 2.0-3.9 BBAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 31JAN2025 17:45:41  29.0N   97.8W ML=2.0  EMSC   SOUTHERN TEXAS

O: 31JAN2025 21:49:01  29.1N   97.9W ML=2.4  EMSC   SOUTHERN TEXAS               

 

O: 31JAN2025 08:47:35  34.2N   80.7W MD=1.8  EMSC   SOUTH CAROLINA               

P: 30JAN2025 169192    37.2N   81.9W 2.0-4.3 ACAAA  Kentucky/Tennessee/NC      

 

O: 31JAN2025 06:14:05  47.6N   70.1W MB=0.4  ECAN OF LA MALBAIE, QC              

P: 26JAN2025 169244    47.3N   70.5W 2.0-3.9 BAAAA  Maine                       

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

February 1, 2025

 

A strong M 5.8 (EMSC, NEIC) to 6.2 (BMG, GEONET) earthquake occurred today in northern Sumatra, Indonesia. It was followed

later in the day by a moderately strong M 5.5-5.8 near the antipode in Ecuador. This

type of antipodal triggering is common between large events in Northern South

America and Sumatra, Indonesia as previously discussed in this summary.

 

For example when the last earthquake hit Ecuador with M>=5.5 on March 18, 2023 (M 6.8)

it was followed by an M 6.1 in northern Sumatra on April 3, 2023. At that time

this summary noted the antipodal nature of these events as:

 

 

"The strongest earthquake in the world today was an M 6.1-6.4 in the region of Northern Sumatra, Indonesia. NEIC reported maximum intensity IV in Sumatra at Gunung Stoli, Kabanjahe, Padang, and II-III in Payakumbuh, and in Malaysia at Klang, Bandar Baru, Shah Alam, Selangor, Subang Jaya, Kuala Lumpur and Ayer Molek.

This epicenter is very close to the antipode of the M 6.7 in Ecuador on March 18, 2023

and was probably promoted by antipodal focusing of seismic waves from Ecuador.

This possibility had been raised when the earthquake in Venezuela occurred on March 18 in this

summary as:

 

The antipode of today's event in Ecuador is at 3N 100E in

the Andaman Islands, India and Sumatra Indonesia which is an active seismic

zone. Seismic enhancment in this area is likely. A minor earthquake hit at the antipode yesterday" (March 18, 2023)

 

The last earthquake of M>=5.8 in northern Sumatra within about 250 km of today's epicenter

occurred as an M 5.9 on May 27, 2024 but the last such event of M>6.2 was an M 6.6 on May 14, 2021.

At that time this summary noted:

 

"Today's earthquake in the Nias area of Indonesia is the strongest in more

than 30 years. An M 6.8 was recorded about 300 km to the southwest of today's

epicenteron October 15, 1990. The only earthquake of M>=5.6 in the area

since 1990 was an M 5.9 on June 12, 2018. The antipode to today's event is in Ecuador

at 0N 83W, and may see enhanced antipodal seismicity in the next several days." (May 14, 2021)

 

BMG reported this earthquake was felt with damage at intensity VIII in Simeulue Barat, Simeulue, and Aceh, Sumatra and IV in Kab. Aceh Selatan, Ba

kongan, Kluet, Labuhan Haji, Meulek, Sawang, Kluet, and Kota; in Aced Utara at Sawang; at Barat Daya at Blang Pidie, Rangan, Manggeng, Susoh, Setia, Lembah Sabil and in Lombok Timur at Labuhan Haji. Lesser shaking at intensity III was reported from Kab Aceh Selatan, Tenggara, Timur, Tengah, Barat, Utara, Barat Daya, Jaya, Tamiang, Pidie, Simeulue, Bireuen, Gayo Lucs, Nagan Raya, Meriah, Ihokseumawe, Langsa, among others.

NEIC reported it was felt with intensity IV in Banda Aceh and II in Medan, Northern Sumatra.

 

The earthquake in Sumatra was reported with the following parameters by BMG, the local seismic network for Indonesia:

News reports on the internet indicate this event shook buildings and caused

panic among residents who rushed from their houses and hospitals and who recalled the M>9.1 earthquake of December 26, 2004 near this

location which triggered a tsunami killing more that 250,000 people around the

Indian Ocean. No tsunami threat has been identified with today's earthquake.

There were no immediate reports of major damage or casualties from today's earthquake.

 

The earthquake Sumatra may have been triggered by SFE from solar flare 9710, a C4.8

class event as it occurred when this flare output was near maximum. Data

for this flare from SWPC follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

9710       1101   1108      1116   C4.8      (January 31, 2025)   4.1E-03  

No Sumatra M 5.8-6.2 11:03 UT

 

 

O: 31JAN2025 11:03:43  3.1N  96.6E ML=6.2  BMG    Northern Sumatra        

O: 31JAN2025 11:03:42  3.2N  97.0E ML=5.8  NEIC   Northern Sumatra        

 

The earthquake in Ecuador of M 5.5 (NEIC) to 5.7 (GFZ) was reported by NEIC with slight damage and intensity VII in Napo, Ecuador at Archidona and Tena and VI in Tulcan, Carchi; IV was felt in Quito, Pichincha, and in in Tungurahua at Banos, Pillaro and in Eloy Alfar, Guayas, Ecuador.

The local network (QUI) gave this event M 5.8 as did BGS. It was followed by

a series of moderate aftershocks. EMSC reported very strong shaking in Ecuador at Quito, Mindo where it opened windows. Al felt strongly at La joya de los Sachas and with moderate intensity at Samborondon, Ecuador.

 

This is the strongest earthquake in Ecuador or northern Peru within about 200 km of this epicenter

in nearly two years. An M 6.8 hit south of this on March 18, 2023. At the time

this summary noted:

 

 

A strong M 6.7-6.8 hit the coast of Western Ecuador and northern Peru today.

NEIC reported it was felt with maximum intensity IX at Balao, Guayas, Ecuador; VIII in Naranjito; VI in Naranjal, VI in Plahyas, Guayaquil, Santa Lucia, Cuenca Azuay, V in Samborondon, Eloy Alfaro among others. Initial news reports indicate extensive but minor damage to buildings and

structures with at least eleven people killed in the quake including one in Peru. Much of the damage

and casualties occurred in Cuenca and Machala when walls collapsed. The epicenter

was near Balao about two hours from Guayaquil. It was felt in at least 13 provinces

of Ecuador. Many communities lost power and a two-story home and wharf collapsed. No tsunami was observed

nor expected. 

 

The time of this earthquake in Ecuador was within about 12 minutes of local

solar noon at a longitude near the longitude of maximum tidal stress (see above)

with the coming new moon.  It is likely this earthquake was promoted by strong tidal stresses associated

with this new moon ...

 

 

Today's earthquake of M 6.7 is the strongest in Ecuador within about 200 km

of this epicenter in at least 35 years. An M 7.5 hit about 300 km northeast of this on February 22, 2019

and another was an M 7.1 on August 12, 2010. These were both at intermediate

epicenters and were felt on the surface with moderate intensity as

reported on February 22, 2019:

 

 

"A major earthquake of M 7.5 (EMSC) to 7.7 (IGP) hit the coast of Ecuador today. It occurred at an intermediate depth of 132 km and

was felt with moderate intensity throughout much of Ecuador. NEIC reported maximum intensity V-VII in Ecuador was felt

at Gualaceo, Azuay, Guayaquil, Loja, Eloy Alfaro, Puebloviejo (VI), La Troncal, Azogues (VII), Gualaceo,  Ecuador in Peru at Piura, Tarapoto, Iquitos, Jaen, Yunmaguas, Tumbes (VII), and with intensity VI in Ecuador at Puyo Pastaca, Banos, Tungurahua, Ambato, Cuenca, Zamora, Santa Lucia, Machala, Playas Guayas, Portoviejo, Manta, Salinas and in Peru at Moyobamba, Colan, Huanchanco, and in general within about 1000 km from the epicenter.

IGP reported intensity V in Pastaza with an aftershock of M 5.7 felt with III in Zarumilla, Peru. Some damage was reported. News sources on the web reported 

NEIC reported this aftershock at M 5.5 was felt in Ecuador with intensity V in Guayaquil, and Santa Lucia, and II-III in Ecuador at Eloy Alfara, Guayas, Cuenca Azuay, Machala, Pajan, Santa Elena, Montecristi, Banos and Manta, Ecuador. no injuries associated with the quake. This was probably due to the intermediate

depth. A shallow quake would have caused considerable damage and destruction.

A slightly larger quake of M 7.8 on April 16, 2016 killed more than 700 people

and destroyed hundreds of buildings and cost more than $3 billion in damages.

Earthquakes of this size in Ecuador can help promote seismicity in California

several months later. This summary will follow this in future issues.

 

...

 

The last earthquake located within about 250 km of today's M 7.5 occurred more

than 30 years ago. The only comparable event in the region in this time period

was the M 7.8 off Ecuador on April 16, 2016. That event occurred about 350 km northwest of today's epicenter." (February 22, 2019, March 18, 2023)

 

 

Enhanced seismicity near the equator had been expected in this summary at this

time. For example in the previous issue of this summary it was noted:

 

"Minor storms are expected in the geomagnetic field in the next two days by SWPC.

Such storms could break the current climate consisting of the lack of strong

earthquakes. This could occur as early as today. Events triggered by the

geomagnetic excursion would be likely near the geomagnetic equator or at

high latitudes. A strong event may yet occur in the area of South or Central

America during these storms, although the area is currently uncommonly quiet." (January 31, 2025)

 

The strongest earthquake in the U.S. or Canada today was an M 4.9 (NEIC) to M 5.0 (GSRAS)  in the Near Islands, Alaska. It was

not reported felt in this remote area. This earthquake occurred 17 minutes after the M 5.5 in Ecuador

at a distance of 102 degrees from Ecuador. This is a distance at which seismic

body waves are refracted and reflected off internal earth boundaries and return to the surface from a large earthquake and can trigger

seismicity following that event. In this case the PP wave from Ecuador was

coincident with the M 4.9 in the Near Islands, Alaska and likely triggered

that event.

 

A strong eruption of Santiaguito Volcano in Guatemala occurred on January 27, 2025. The eruption included red hot rocks and plumes of smoke and ash rising nearly 1200 meters. Santiaguito is a part of the Santa Maria Volcano complex near Quetzaltenango. A major eruption in the area occurred in 1902 killing more than 5000 people.

 

The swarm of earthquake in the Dodecanese Islands of Greece continued today.

This series is near the volcanicly active area of Santorini. Local geoscientists

fear this may precede an eruption of the local volcanic sites. While a massive

volcanic eruption near 1600 BC at this location changed the history of Europe,

there have been minor episodes such as the current activity in recent years

which did not end in volcanism. This activity began near the new moon of January 29, 2025 and may have been promoted by

strong tidal stresses from that alignment. This summary has been following

these events over the past several days. For example in the previous issue it

was noted:

 

 

"NEIC reported an earthquake of M 4.4 in Attiki, Greece was felt with moderate intensity up to II-III in the area(s) of Attiki, Greece at Amarousion, Athens, Kapandrition, Neon, Viron, Ayios Paneleimon and II in Melissia, Moskhaton, Vrilissia, Zefirion, Aghios Dimitrios and in Kimi Evvoia.

The area of Greece has seen enhanced seismicity with the new moon of January 29

as it lies at a latitude where tidal stresses were maximized with that new moon

as reported in previous issues of this summary:

 

"A strong series of minor earthquakes has been occurring in the Dodecanese

Islands of Greece over the past day. It is expected to continue through the

end of January. These epicenters are at a longitude which is at local solar

midnight when the new moon occurs on January 29, 2025 (see above) and could be enhanced

at that time." (January 29, 2025)

 

The new moon will arrive on January 29, 2025 at 12:36 UT. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon, Santa Cruz, and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (January 29, 2025)

 

An earthquake of M 4.1 in the Aegean Sea was also felt in Greece today. EMSC reported it as a light to moderate shaking in the Aegean Sea at Agios Loukas, Glazia, Eretria, Oropos, Kumi, Vasiliko, Dionysos, Chalkida, Nea Makri, Kifisia, Acharnes, Melissia, Amarousio among others." (January 31, 2025)

 

The strongest earthquake in the world today was an M 5.3 in the Central Mid-Atlantic Ridge.

This epicenter is near the antipode of recent moderate to moderately strong

seismicity in the northern New Ireland/New Britain area. This epicenter

is also at 142 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025. Reflected and refracted

seismic energy from the inner-outer core boundary returns to the surface at

this distance and often enhances seismicity at this distance from major earthquakes

following those events. It is also likely it was promoted by strong tidal

stresses from the new moon of January 29, 2025 as it lies at a longitude

where such stresses were maximized during this event as reported in

previous issues of this summary:

 

 

"The new moon will arrive on January 29, 2025 at 12:36 UT. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon, Santa Cruz, and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (January 29, 2025)

 

Similar earthquakes in the Central Mid-Atlantic Ridge have most recently occurred as events

of M 5.5 on June 21, 2024 and November 6, 2023. The last of larger magnitude in the region was an

M 5.9 on September 11, 2023. At the time this summary noted:

 

 

"An earthquake of M 5.9 also occurred today in the Central Mid-Atlantic Ridge area.

It was not reported felt in this remote area. The last earthquake of M>=5.9

within about 200 km of this epicenter was an M  6.9 on September 18, 2020. At the time

this summary noted in this regard:

 

 

"Strong earthquakes in the mid-Atlantic in the past month have included an M 6.5

about 300 km west of today's event on August 30 and an M 6.6 more than 1000 km

to the northwest on September 6, 2020. The last earthquake within about 250 km

of today's event in the central mid-Atlantic with M>=6.7 occurred more than

30 years ago, this being the strongest quake in the area since an M 6.7 on October 7, 1975 -

the largest historical event recorded in this region and the only other such

event of M>=6.7." (September 18, 2020, September 11, 2023)

 

Today's M 5.3 in the Central Mid-Atlantic area may have been promoted by SFE

from flare 9660 as it occurred at the start of the at C2.5 flare. Data from

SWPC for this event follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

9660       0905   0908      0923   C2.5      (January 31, 2025)   2.7E-03  

Central Mid-Atlantic M 5.3 09:04 UT

Virgin Islands, M 3.8 09:04 UT

 

 

 

Forecast 169086 had expected today's event within about 100 km in the Central

Mid-Atlantic Ridge was likely in late January, 2025.

 

NEIC reported earthquakes of M 2.7 and M 2.5 in Northern California was felt with moderate intensity up to IV in the area(s) of Northern California at Westwood and III in Chester and lesser shaking as far as Rancho Cordova, California.

 

NEIC reported an earthquake of M 4.1 in Northern Chile was felt with moderate intensity up to II-III in the area(s) of Northern Chile at Iquique, Tarapaca.

 

BMG  reported an earthquake of M 5.1 in the Banda Sea, Indonesia was felt with  intensity up to II in the area(s) of  Kab. Maluku Barat Daya at Dawelor Dawera and I in Kap Kepulauan Tanimbar at Selaru, Wer Tamrian, Maktian and Wuar Labobar, Indonesia.

 

BMG reported an earthquake of M 5.2 South of Java, Indonesia  was felt with  intensity up to VII in the area(s) of South of Java, Indonesia  at Station Pacitan, Java and III in Kab. Klaten at Wedi, Kulon Progo at Panjatan, Galur, Sentolo; Bantul, Gunungkidul, Sleman, Ponorogo, Pasuruan, Mojokerto, Bojonegoro and II in Ciamis, Subang, Pangandaran, Cilacap, Banyumas, Purbalingga, Banjarnegara, Kebumen, Purworejo. Wonosobo. Magelang. Klatan, among others.

NEIC reported it was felt with intensity III in Yogyakarta, Indonesia at Depok and II in Sewon and Yogyakarta.

EMSC reported strong short shaking in Indonesia at Kasihan, Kasongan Bantul and Tempel, Terasa.

 

EMSC reported an earthquake of M 2.7 in the Geysers, California was felt with  intensity up to III in the area(s) of the Geysers, California at Geyserville, and II in Kelseyville, Middletown and Sacramento.

 

 

TROPICAL CYCLONE ELVIS (12S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    ELVIS    2025-02-01  00:00 UT  34.1S   51.9E  045 kts  South of Madagascar        

 

Tropical Cyclone Elvis (12S) continued today in the area of the south Indian Ocean South of Madagascar with winds up to 45 kts.  It is expected to track to the southeast over the next several days. Around February 1, 2025 it could reach 40S 58E, an area antipodal to northern California. Some enhanced seismicity is likely off the coast of Northern California or in northern California near Chester at that time. A series of light earthquakes in this area today may precede the antipodal arrival of TC Elvis.

 

 

TROPICAL CYCLONE 11S                   

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    11S      2025-02-01  00:00 UT  17.1S   62.3E  045 kts  East of Mauritius            

 

Tropical Cyclone 11S continued today in the area of the south Indian Ocean east of Mauritius with winds up to 45 kts.  It is expected to track to the west over the next several days and to turn south as it reaches La Reunion. It may encourage volcanism in the area of La Reunion and could continue south to areas antipodal to Baja and Southern California. The current antipode is at 16N 107W near Jalisco and Michoacan, Mexico where antipodal effects could enhance seismicity at this time.

 

 

Tropical cyclones may be forming north of Australia. These include a storm at 14S 103E moving to the west with winds up to 33 kts. and a storm at 14S 120E moving to the west with winds up to 33 kts. Neither of these is strong at this time and are unlikely to enhance regional seismicity at this time. The storm at 120E could see minor enhancement of seismicity at its antipode in the Leeward Islands, Caribbean.

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

9560       0128   0133      0138   C2.5      (January 31, 2025)   1.0E-03  

9570       0215   0228      0238   C2.9      (January 31, 2025)   3.3E-03  

9590       0312   0319      0332   C4.3      (January 31, 2025)   4.0E-03  

9600       0420   0427      0435   C3.3      (January 31, 2025)   2.5E-03  

9720       0534   0545      0548   C4.4      (January 31, 2025)   1.9E-03  

9610       0548   0610      0620   M1.0      (January 31, 2025)   8.2E-04  

9660       0905   0908      0923   C2.5      (January 31, 2025)   2.7E-03  

Central Mid-Atlantic M 5.3 09:04 UT

Virgin Islands, M 3.8 09:04 UT

 

9670       0956   1010      1012   C5.4      (January 31, 2025)   6.0E-03  

Gulf of California M 3.8 09:56 UT

Michoacan, M 3.7 10:11 UT

 

9710       1101   1108      1116   C4.8      (January 31, 2025)   4.1E-03  

No Sumatra M 5.8-6.2 11:03 UT

 

9740       1124   1131      1135   C5.2      (January 31, 2025)   9.4E-04  

No. Sumatra M 2.7 11:24 UT

Tarapaca, Chile M 3.6 11:43 UT

 

 

9760       1201   1212      1218   C3.4      (January 31, 2025)   3.2E-03  

Solomon Is. M 5.4 12:04 UT

Central Mediterranean M 3.6 12:08 UT

 

9790       1340   1406      1425   M6.7      (January 31, 2025)   1.1E-01  

New Guinea M 4.4 13:38 ?UT

Iran M 3.1 13:45 UT M 3.4 14:22 UT

 

Central California M 2.4 13:47 UT

 

9890       1658   1703      1709   C5.4      (January 31, 2025)   1.5E-03  

9910       1744   1749      1755   C5.8      (January 31, 2025)   3.3E-03  

Southern Texas M 2.0 17:45 UT

 

9970       2014   2023      2028   M1.8      (January 31, 2025)   6.9E-03  

Guerrero M 3.3 20:15 UT

Iran M 3.6 20:24 UT

 

 

 

GEOMAGNETIC FIELD:  minor storms February 1 active February 2 quiet February 3.  Solar M-flare chance: 55% X-class: 15% proton storm: 10%

 

AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux)     8  9  5 09:00 4 141 207

 

A strong Gamma Ray Burst was recorded by SWIFT on January 29, 2025 at 04:45:09 UT (#250129A).  A preliminary UVOT Magnitude  of V=17.24 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 28, 2025 at 16:22:53 UT (#250128B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 14, 2025 at 07:33:19 UT (#250114A).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 8, 2025 at 10:23:06 UT (#250108B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 3, 2025 at 15:44:17 UT (#250103B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 1, 2025 at 13:22:50 UT (#250101A).  A preliminary UVOT Magnitude of V=18.10 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 29, 2024 at 04:13:05 UT (#241229B).  A preliminary UVOT Magnitude of V>20.0 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 28, 2024 at 03:57:15 UT (#241228A).  A preliminary UVOT Magnitude of V>19.1 was assigned to this GRB.

 

EARTHQUAKES IN REUNION; NORTHERN EAST PACIFIC RISE AND JALISCO TIED TO TC 11S

 

EARTHQUAKE SUMMARY FOR JANUARY 30, 2025

 

 

Moderate earthquakes of M 4.7-4.8 occurred in the Mauritius and Reunion Islands and at the antipode in the north Pacific Rise today. These apparently were promoted by Tropical Cyclone 11S. This cyclone formed at a position in the

Indian Ocean on January 29 - a position antipodal to the M 4.7 today in the northern East Pacific Rise and is currently located at 16S 67E - antipodal the location off western Jalisco, Mexico where an M 4.1 occurred today. As expected an M 4.4 moderate earthquake also occurred in Mauritius and Reunion today. This event at 17S 67E is less than 100 km from the current eye of Tropical Cyclone 11S. This clear triggering at both local and antipodal locations with this moderate Tropical Cyclone suggests more scrutiny in terms of seismicity should be placed on non-major cyclones such as this.  This activity had been anticipated in previous issues of this summary as:

 

"TROPICAL CYCLONE 11S                   

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    11S      2025-01-29  00:00 UT  12.5S   76.3E  045 kts  East of Mauritius            

 

Tropical Cyclone 11S formed today in the area of the south Indian Ocean east of Mauritius with winds up to 45 kts.  It is expected to track to the west over the next several days and to turn south as it reaches La Reunion. It may encourage volcanism in the area of La Reunion and could continue south to areas antipodal to Baja and Southern California." (January 29, 2025)

 

and

 

"Tropical Cyclone 11S continued today in the area of the south Indian Ocean east of Mauritius with winds up to 45 kts.  It is expected to track to the west over the next several days and to turn south as it reaches La Reunion. It may encourage volcanism in the area of La Reunion and could continue south to areas antipodal to Baja and Southern California. The current antipode is at 16N 107W near Jalisco and Michoacan, Mexico where antipodal effects could enhance seismicity at this time" (January 30, 2025)

 

The activity in Mauritius may have been triggered by SFE associated with solar flare 9530 as it occurred near the peak of that flare. SWPC data on  this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 

9530       2349   0001      0010   C3.8      (January 30, 2025)   3.9E-03  

Mauritius, Reunion M 4.4 00:08 UT

Gulf of California  M 3.7 00:03 UT M 4.1 00:08 UT

Bonin Is. M 4.5 00:19 UT

 

The last earthquake in the northern East Pacific Rise within about 200 km of today's epicenter with M>=4.7 was an M 4.7 on October 11, 2021. This epicenter is at 140 degrees from the M 7.1 in Tibet of January 7, 206 and may have been promoted by energy from that source.

 

This epicenter is also located at the fourth node (90 degrees) from the M 7.4 in Vanuatu of December 17, 2024 and may have been promoted by energy from that source.

 

Forecast 169140 had expected today's Pacific Rise activity was likely within  about 50 km at the end of January, 2025.

 

O: 30JAN2025 23:24:41  10.0N  104.4W MW=4.7  EMSC   NORTHERN EAST PACIFIC RISE   

P: 25JAN2025 169140    10.0N  104.0W 3.5-5.5 BAAAA  Michoacan, Mexico          

 

The last event of M>=4.4 in the Mauritius-Reunion region was recorded by NEIC as an M 6.3 on September 26, 2024 and today's event may be an aftershock of that. At the time this summary noted:

 

 

"The last earthquake in the Mauritius-Reunion area within about 300 km of this epicenter was an M 6.7 on May 12, 2021 and July 26, 2012. Global stress conditions with the May 12, 2021 earthquake were similar to those today. At the time of the 2021 event this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.7 in the Mauritius-Reunion area in the South Indian Ocean. NEIC reported it was as far as 1000 km from the epicenter in Mauritius at Laimatie Flaco, Bois des Amourettes, Grand Port, Curepipe Plaines Wilheim, Quatre Bornes Paines Wilheim and in Antananarivo, Madagascar and at Male, Maldives. The last earthquake in the world of larger magnitude was an M 7.0 on March 20, 2021 off the coast of eastern Honshu. A smaller event off Honshu of M 6.7-6.8 occurred more recently on May 1, 2021. The only earthquake ever recorded of M>=6.7 within about 300 km of this epicenter was an M 6.6 on July 26, 2012. Today's earthquake is at the exact antipode of the eye of Tropical Storm Andres which is south of western Mexico at this time." (September 26, 2024)

 

 

Forecast 169313 had expected activity in this area would be enhanced in late

January, 2025.

 

 

O: 31JAN2025 00:08:04  17.6S   66.7E MB=4.4  EMSC   MAURITIUS - REUNION REGION   

P: 22JAN2025 169313    15.0S   67.0E 4.0-5.6 AAAAA  So. Indian Ocean           

 

O: 31JAN2025 08:42:51  18.4N  106.1W ML=4.1  EMSC   OFF COAST OF JALISCO, MEXICO 

P: 25JAN2025 169141    18.0N  103.0W 3.5-5.3 CACAA  Michoacan, Mexico          

 

A strong series of earthquakes also occurred north of the antipode to TC 11S in the area of northern Baja California, Mexico. This series included several events with magnitude greater than four today and may be enhanced as TC 11S tracks to the west and south and Baja California becomes more antipodal to the eye. The first event of M>=4 in northern Baja today occurred less than a minute after the M 4.4 in the Mauritius-Reunion area and less than an hour after the M 4.7 in the Northern East Pacific Rise (see above). This activity in northern Baja California is at the fourth node (90 degrees) from the M 6.8 in Kyushu, Japan of January 13, 2025 and at the third node (120 degrees) from the M 7.1 in Tibet of January 7, 2025 and may have been promoted by energy from those sources.

 

The event of M 4.1 is the strongest in the northern Gulf of Mexico within

about 100 km of these epicenters since an M 4.1  on February 26, 2024. The last of significantly larger magnitude occurred with M 4.3 and 4.6 on July 16, 2023.

At the time this summary noted:

 

"A strong swarm of earthquakes also occurred today in Baja and the Gulf of

California, Mexico. The strongest earthquakes in this series occurred within

minutes of local solar noon with M 4.6 and 4.3 but the series began with smaller event including an M 4.0 shortly after the M 7.2 in the Alaska Peninsula.  NEIC reported the earthquake of M 4.6 in the Gulf of California, Mexico was felt with intensity II-III in the area(s) of  Sonora, Mexico in Puerto Penasco (VI) and Sonoita; in San Felipe, Baja California and in Arizona at Somerton (IV), Wellton, and Sells. Several moderate earthquakes including an M 4.2 were also felt in Baja California today. These were felt lightly in Baja California at Tijuana. This activity was probably triggered by strong tidal stresses with the new moon of July 17." (July 16, 2023)

 

Readers may note that this prior series in the northern Gulf of California (like today's) occurred with the new moon.

 

This epicenter is also located at the fourth node (90 degrees) from the M 7.4 in Vanuatu of December 17, 2024 and may have been promoted by energy from that source.

 

Forecasts 169208 and 169210 had expected this activity within this area was likely at the end of January, 2025.

 

 

O: 30JAN2025 22:15:23  31.5N  114.6W ML=3.8  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:20:36  31.5N  114.6W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:24:24  31.5N  114.6W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:26:43  31.5N  114.6W ML=3.8  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 10:35:52  31.6N  114.6W ML=3.0  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:22:38  31.6N  114.6W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 31JAN2025 00:02:59  31.6N  114.5W ML=3.7  EMSC   GULF OF CALIFORNIA

O: 31JAN2025 00:08:56  31.6N  114.6W ML=4.1  EMSC   GULF OF CALIFORNIA           

P: 27JAN2025 169208    32.2N  114.1W 2.0-4.3 BAAAA  SW U.S.A                   

P: 29JAN2025 169210    32.4N  115.8W 2.5-4.8 AAAAA  So. California             

 

 

Light earthquakes also continued in southern California near the region devastated by recent wild fires. Two events in this area of M 2.8 and M 2.2 at 34.4N 119.7W north of Santa Barbara may have been promoted through unloading of the surface during those fires as suggested in previous issues of this summary. Today's events were widely felt in the Santa Barbara area. NEIC reported maximum intensity III in Santa Barbara, and II in Goleta, California. The M 2.8 is the strongest event within about 50 km of this epicenter since events of M 2.9 on January 6 and 9, 2025. They had been described in this summary at the time as:

 

 

"An unusual series of earthquakes occurred today in the Santa Barbara Channel, California.

NEIC reported this earthquake of M 2.9 in Southern California  was felt with moderate intensity up to II-III in the area(s) of  Southern California in Santa Barbara, Long Beach, Goleta, Ventura. These are in the vicinity of the massive wildfires in the area of Los Angeles over the past several days. These events of M 2.9, 2.3 and 2.3 include the largest event in the area within about 50 km of today's epicenter since an M 3.1 on June 4, 2023. These event occurred near local solar noon and may have been promoted by SFE associated with solar flares and/or tidal stresses both of which maximize at this hour. One of the events - an M 2.3 occurred near the maximum output of solar flare 3760. Data from SWPC for this flare follows.

 

Hair triggering of this type suggests this may be an area of high stress subject to load associated with the current fires in the area. It is an area where daily inspection of earthquake data may yield insights." (January 9, 2025)

 

The last earthquake in the area within about 50 km of these epicenters of significantly larger magnitude was an M 3.5 on December 9, 2021. At the time this summary noted:

 

 

"An M 3.6 was widely felt in eastern Los Angeles, California today. NEIC reported maximum intensity IV in Mt. Baldy, Lytle Creek, with III in Rancho Cucamonga, Fontana, Rialto, and Upland among others.  The last earthquake in eastern Los Angeles with M>=3.6 occurred on April 3, 2019 also with M 3.6. The last in this area of larger magnitude was an M 4.4 on August 29, 2018. " (December 9, 2021)

 

Forecast 169216 had expected this activity in southern California was likely

around January 28.

 

O: 31JAN2025 07:12:30  34.4N  119.8W ML=2.7  EMSC   SOUTHERN CALIFORNIA

O: 31JAN2025 07:07:02  34.4N  119.7W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 28JAN2025 169216    35.0N  119.2W 2.5-4.6 BAAAA  So. California             

 

The strongest earthquake in the world today was an M 5.3 in the Central Mid-Atlantic Ridge. This epicenter is near the antipode of recent moderate to moderately strong seismicity in the northern New Ireland/New Britain area. This epicenter is also at 142 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025. Reflected and refracted seismic energy from the inner-outer core boundary returns to the surface at this distance and often enhances seismicity at this distance from major earthquakes following those events. It is also likely it was promoted by strong tidal stresses from the new moon of January 29, 2025 as it lies at a longitude where such stresses were maximized during this event as reported in  previous issues of this summary:

 

 

"The new moon will arrive on January 29, 2025 at 12:36 UT. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon, Santa Cruz, and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (January 29, 2025)

 

Similar earthquakes in the Central Mid-Atlantic Ridge have most recently occurred as events of M 5.5 on June 21, 2024 and November 6, 2023. The last of larger magnitude in the region was an M 5.9 on September 11, 2023. At the time this summary noted:

 

 

"An earthquake of M 5.9 also occurred today in the Central Mid-Atlantic Ridge area. It was not reported felt in this remote area. The last earthquake of M>=5.9 within about 200 km of this epicenter was an M  6.9 on September 18, 2020. At the time this summary noted in this regard:

 

 

"Strong earthquakes in the mid-Atlantic in the past month have included an M 6.5 about 300 km west of today's event on August 30 and an M 6.6 more than 1000 km to the northwest on September 6, 2020. The last earthquake within about 250 km  of today's event in the central mid-Atlantic with M>=6.7 occurred more than

30 years ago, this being the strongest quake in the area since an M 6.7 on October 7, 1975 - the largest historical event recorded in this region and the only other such event of M>=6.7." (September 18, 2020, September 11, 2023)

 

Forecast 169086 had expected today's event within about 100 km in the Central Mid-Atlantic Ridge was likely in late January, 2025.

 

O: 31JAN2025 09:04:51   0.5N   25.2W MB=5.3  EMSC   CENTRAL MID-ATLANTIC RIDGE   

P: 25JAN2025 169086     1.0N   26.0W 4.0-6.2 CAAAA  Central Mid-Atlantic Ridg  

 

Minor storms are expected in the geomagnetic field in the next two days by SWPC. Such storms could break the current climate consisting of the lack of strong earthquakes. This could occur as early as today. Events triggered by the geomagnetic excursion would be likely near the geomagnetic equator or at high latitudes. A strong event may yet occur in the area of South or Central America during these storms, although the area is currently uncommonly quiet.

 

NEIC reported an earthquake of M 4.4 in Attiki, Greece was felt with moderate intensity up to II-III in the area(s) of Attiki, Greece at Amarousion, Athens, Kapandrition, Neon, Viron, Ayios Paneleimon and II in Melissia, Moskhaton, Vrilissia, Zefirion, Aghios Dimitrios and in Kimi Evvoia. The area of Greece has seen enhanced seismicity with the new moon of January 29 as it lies at a latitude where tidal stresses were maximized with that new moon as reported in previous issues of this summary:

 

"A strong series of minor earthquakes has been occurring in the Dodecanese Islands of Greece over the past day. It is expected to continue through the end of January. These epicenters are at a longitude which is at local solar midnight when the new moon occurs on January 29, 2025 (see above) and could be enhanced

at that time." (January 29, 2025)

 

 

An earthquake of M 4.1 in the Aegean Sea was also felt in Greece today. EMSC reported it as a light to moderate shaking in the Aegean Sea at Agios Loukas, Glazia, Eretria, Oropos, Kumi, Vasiliko, Dionysos, Chalkida, Nea Makri, Kifisia, Acharnes, Melissia, Amarousio among others.

 

O: 31JAN2025 07:36:03  37.5N   20.6E MW=4.2  EMSC   IONIAN SEA                   

P: 27JAN2025 169197    38.0N   20.0E 3.0-4.7 BAAAA  No. Greece                 

 

O: 31JAN2025 06:01:54  36.6N   25.6E ML=2.8  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 BAAAA  Aegean Sea                 

 

O: 30JAN2025 15:55:27  38.4N   24.0E MW=4.1  EMSC   AEGEAN SEA                   

P: 28JAN2025 169173    39.0N   26.0E 3.0-4.9 AABAA  Aegean Sea                 

 

A series of minor earthquakes been occurring in the Strait of Gibraltar over the past several days. These are not unusual but the magnitude of the largest event in the series appears to be increasing each day. These events, like a series in the eastern U.S. in Texas, New York, Maine, etc are located at 103 degrees from the M 6.8 in Kyushu, Japan of January 13. A stronger event in Gibraltar is possible at this time.

 

Forecast 169195 had expected enhanced regional activity at this time in  Morocco or Spain.

 

O: 30JAN2025 13:57:13  36.2N    4.2W ML=2.0  EMSC   STRAIT OF GIBRALTAR

O: 31JAN2025 06:55:03  35.4N    3.7W ML=2.4  EMSC   STRAIT OF GIBRALTAR          

P: 21JAN2025 169195    37.0N    6.0W 3.5-5.3 CBBAA  Morocco/Spain         

    

The strongest seismicity in the U.S. or Canada today occurred in western Canada

as an M 4.7 near Bella Coola, British Columbia and an M 3.8 near Faro, Yukon Territory. Neither of these event were reported felt in these remote areas.

 

The event in British Columbia is the strongest within about 150 km of that epicenter since an M 4.6 on December 17, 2023. Three other earthquakes in this area have been recorded with M>=3.7 in the past 35 years - an M 3.9 on February 18, 2017; an M 3.8 on November 14, 2008 and an M 4.2 on October 6, 2004. The closest of these to today's epicenter was the M 4.2 in October, 2004. At the time of the December, 2023 event this summary noted:

 

"The strongest earthquake in the U.S. or Canada today was an M 4.6-4.9 in British Columbia. NEIC reported it was felt with intensity up to III in Hanceville, B.C., Canada. NEIC reported it was felt with intensity up to IV in the epicentral zone. EMSC reported it was felt with moderate intensity in British Columbia at Campbell River, Nanaimo, Vancouver, West End, North Saanich, Canada. The only earthquake with M>=4.9 within about 250 km of this epicenter in the past 35 years was an M 4.9 on November 26, 2022 about 250 km southwest of today's event." (December 17, 2023)

 

This epicenter is located at the fourth node (90 degrees) from the M 7.4 in Vanuatu of December 17, 2024 and at the fifth node (72 degrees) from the M 6.8 in Kyushu or January 13, 2024 and may have been promoted by energy from those sources.

 

Forecast 169004 had expected enhanced seismicity in this region at the end of January, 2025.

 

O: 30JAN2025 12:48:26  52.0N  126.2W MB=3.7  ECAN OF BELLA COOLA 1, BC 

O: 30JAN2025 12:48:26  52.0N  126.2W ML=3.7  EMSC   BRITISH COLUMBIA, CANADA     

P: 20JAN2025 169004    50.0N  128.0W 3.0-4.9 CBBAA  British Colombia           

 

The M 3.8 in the southern Yukon Territory was the largest in that region since an M 4.5 on October 5, 2022. At the time this summary noted:

 

"The earthquake in the Yukon today is the strongest within about 150 km of this epicenter since an M 5.0 on December 22, 2017 and an M 4.6 on April 8, 2008.   Today's event occurred within minutes of local solar midnight and was possibly also promoted by high tidal stresses with the new moon which maximized near this hour " (October 5, 2022)

 

Forecast 169286 had expected enhanced seismicity in this area at the end of

January, 2025.

 

O: 30JAN2025 19:38:58  62.2N  134.6W MB=3.8  ECAN OF FARO, YT   

O: 30JAN2025 19:38:58  62.2N  134.6W ML=3.8  EMSC   SOUTHERN YUKON TERRITORY, CANA

P: 27JAN2025 169286    59.0N  136.0W 3.0-4.7 BCAAA  Southeast Alaska            

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 30JAN2025 07:16:18  23.2N  120.6E mb=4.8  EMSC   TAIWAN

O: 30JAN2025 17:45:00  23.2N  120.6E ML=4.0  EMSC   TAIWAN

O: 30JAN2025 20:05:27  23.3N  120.5E ML=4.4  EMSC   TAIWAN

O: 30JAN2025 06:49:40  23.2N  120.5E ML=4.0  EMSC   TAIWAN                       

P: 27JAN2025 169170    23.0N  122.0E 4.0-5.4 BABAA  Taiwan                     

P: 28JAN2025 169139    19.0N  120.0E 3.5-4.9 CAAAA  Luzon, Philippines         

 

NEIC reported an earthquake of M 4.8 in Taiwan was felt with moderate intensity up to V in the area(s) of Taiwan in Changhua, IV in Nantou, Tainan; III in Chiayi, Kaohsiung, Taichung, Tainan, Yunlin and Fujian, China and II in Taiwan in Pingtung, and Taipei Counties.

 

O: 30JAN2025 23:22:04  27.4N   54.4E MB=4.1  EMSC   SOUTHERN IRAN                

P: 24JAN2025 169169    28.0N   52.0E 3.5-5.2 CABAA  So. Iran/Persian Gulf      

 

EMSC reported an earthquake of M 4.1 in Southern Iran was felt with  intensity up to IV in the area(s) of Southern Iran.

 

O: 30JAN2025 22:53:36  28.1N   87.8E ML=3.3  EMSC   WESTERN XIZANG               

P: 27JAN2025 169165    28.0N   88.0E 3.5-5.4 BAAAA  Nepal                      

 

O: 31JAN2025 08:48:34  28.0N   52.2E mb=4.4  EMSC   SOUTHERN IRAN

O: 30JAN2025 12:51:07  28.1N   52.5E mb=4.6  EMSC   SOUTHERN IRAN

O: 30JAN2025 10:10:06  28.2N   52.4E MB=4.8  EMSC   SOUTHERN IRAN                

P: 24JAN2025 169220    30.0N   52.0E 3.8-5.4 CBAAA  So. Iran                   

 

O: 30JAN2025 08:37:49  30.8N   49.1E MB=4.3  EMSC   WESTERN IRAN                  

P: 24JAN2025 169220    30.0N   52.0E 3.8-5.4 CABAA  So. Iran                   

 

O: 30JAN2025 08:39:19  35.3N   44.0E MB=4.2  EMSC   IRAQ                         

P: 27JAN2025 169220    34.0N   49.0E 3.8-5.6 BBCAA  So. Iran                    

P: 30JAN2025 169226    38.0N   43.0E 3.5-5.2 ACAAA  Turkey                     

 

O: 30JAN2025 19:31:51  39.4N   73.6E MB=4.3  EMSC   TAJIKISTAN                   

P: 25JAN2025 169191    39.0N   72.0E 3.8-5.3 BAAAA  Hindu Kush/Pakistan        

 

 

INDONESIA AND PHILIPPINES

 

O: 30JAN2025 16:18:25   3.9S  138.9E ML=4.2  EMSC   PAPUA, INDONESIA             

P: 28JAN2025 169121     3.0S  139.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 30JAN2025 08:54:11   4.5S  136.9E ML=4.0  EMSC   NEAR S COAST OF PAPUA, INDONES

P: 29JAN2025 169119     3.0S  138.0E 4.0-5.5 ABAAA  West Irian, PNG            

 

O: 31JAN2025 07:07:59   5.0S  102.9E MB=4.5  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 21JAN2025 169116     5.0S  103.0E 4.0-5.4 CAAAA  So. of Sumatera             

P: 30JAN2025 169114     6.0S  105.0E 4.0-5.4 AACAA  So. of Java                

 

O: 30JAN2025 19:48:43   6.9N  126.1E MB=4.5  EMSC   MINDANAO, PHILIPPINES        

P: 22JAN2025 169094     6.0N  126.0E 4.0-5.4 CAAAA  Mindanao, Philippines      

 

O: 31JAN2025 01:20:47  18.5N  120.7E ML=4.1  EMSC   LUZON, PHILIPPINES           

P: 28JAN2025 169139    19.0N  120.0E 3.5-4.9 BAAAA  Luzon, Philippines         

 

EMSC reported an earthquake of M 4.1 in Northern Luzon, Philippines was felt with  intensity up to IV in the area(s) of Northern Luzon, Philippines at Burgos.

 

O: 30JAN2025 16:51:39  18.8N  145.5E MB=4.6  EMSC   PAGAN REG., N. MARIANA ISLANDS

P: 28JAN2025 169144    18.0N  148.0E 4.0-5.5 AACAA  No. Marianas               

 

CENTRAL AND SOUTH AMERICA

 

O: 30JAN2025 09:54:38  14.3N   92.6W ML=4.1  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 31JAN2025 06:59:26  13.3N   93.2W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 30JAN2025 169128    14.0N   93.0W 3.5-5.7 AAAAA  Chiapas, Mexico            

 

O: 30JAN2025 22:23:34  15.5N   94.7W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 29JAN2025 169128    17.0N   95.0W 3.5-5.5 ABAAA  Chiapas, Mexico            

 

O: 30JAN2025 12:57:15  15.5N   96.9W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 30JAN2025 11:12:58  15.7N   96.8W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 29JAN2025 169146    16.0N   98.0W 3.5-5.5 AABAA  Oaxaca, Mexico             

 

O: 30JAN2025 22:17:13  16.7S   69.8W MB=4.5  EMSC   SOUTHERN PERU                

P: 25JAN2025 169315    17.0S   70.0W 4.0-5.6 BAAAA  So. Peru/Bolivia           

P: 28JAN2025 169316    18.0S   69.0W 4.0-5.6 ABAAA  So. Peru/Bolivia           

 

O: 30JAN2025 09:56:34  17.6N  100.9W ML=4.1  EMSC   GUERRERO, MEXICO             

P: 30JAN2025 169147    16.0N  100.0W 3.5-5.2 ABAAA  Oaxaca, Mexico             

 

O: 31JAN2025 08:42:51  18.4N  106.1W ML=4.1  EMSC   OFF COAST OF JALISCO, MEXICO 

P: 25JAN2025 169141    18.0N  103.0W 3.5-5.3 CACAA  Michoacan, Mexico          

 

O: 31JAN2025 06:01:44  19.0N   64.9W MD=3.7  EMSC   VIRGIN ISLANDS REGION        

P: 30JAN2025 169150    19.0N   66.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 31JAN2025 06:21:36  24.7N  109.3W ML=4.1  EMSC   GULF OF CALIFORNIA           

P: 26JAN2025 169158    24.0N  110.0W 3.5-5.1 BAAAA  Gulf of California         

 

O: 30JAN2025 19:14:10  21.8N   99.4W ML=3.5  EMSC   SAN LUIS POTOSI, MEXICO      

P: 30JAN2025 169166    20.0N   99.0W 3.0-4.8 ABAAA  Northern Mexico            

 

 

 

AFRICA AND EUROPE

 

O: 31JAN2025 09:01:20   8.2N   39.9E MB=4.7  EMSC   ETHIOPIA                     

P: 29JAN2025 169131    10.0N   40.0E 3.5-5.1 AAAAA  Ethiopia                   

 

O: 30JAN2025 13:57:13  36.2N    4.2W ML=2.0  EMSC   STRAIT OF GIBRALTAR

O: 31JAN2025 06:55:03  35.4N    3.7W ML=2.4  EMSC   STRAIT OF GIBRALTAR          

P: 21JAN2025 169195    37.0N    6.0W 3.5-5.3 CBBAA  Morocco/Spain              

 

O: 31JAN2025 07:36:03  37.5N   20.6E MW=4.2  EMSC   IONIAN SEA                   

P: 27JAN2025 169197    38.0N   20.0E 3.0-4.7 BAAAA  No. Greece                  

 

O: 31JAN2025 06:01:54  36.6N   25.6E ML=2.8  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 BAAAA  Aegean Sea                 

 

O: 30JAN2025 15:55:27  38.4N   24.0E MW=4.1  EMSC   AEGEAN SEA                   

P: 28JAN2025 169173    39.0N   26.0E 3.0-4.9 AABAA  Aegean Sea                 

 

SOUTHWEST PACIFIC

 

No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.

 

OCEAN RIDGES

 

O: 31JAN2025 09:04:51   0.5N   25.2W MB=5.3  EMSC   CENTRAL MID-ATLANTIC RIDGE   

P: 25JAN2025 169086     1.0N   26.0W 4.0-6.2 CAAAA  Central Mid-Atlantic Ridg  

 

O: 30JAN2025 23:24:41  10.0N  104.4W MW=4.7  EMSC   NORTHERN EAST PACIFIC RISE   

P: 25JAN2025 169140    10.0N  104.0W 3.5-5.5 BAAAA  Michoacan, Mexico          

 

O: 31JAN2025 00:08:04  17.6S   66.7E MB=4.4  EMSC   MAURITIUS - REUNION REGION   

P: 22JAN2025 169313    15.0S   67.0E 4.0-5.6 AAAAA  So. Indian Ocean           

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 30JAN2025 22:41:09  32.1S  180.0E MB=4.3  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 23JAN2025 169348    32.0S  180.0E 4.0-5.4 CAAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 31JAN2025 09:10:21  25.4N  125.1E MB=4.6  EMSC   SOUTHWESTERN RYUKYU ISL., JAPA

P: 28JAN2025 169168    26.0N  128.0E 4.0-5.6 BABAA  Ryukyu Islands             

 

O: 30JAN2025 11:52:32  26.4N  140.8E MB=4.3  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 24JAN2025 169157    26.0N  143.0E 4.0-5.4 CACAA  Bonin Islands              

 

O: 31JAN2025 00:19:30  27.4N  142.8E MB=4.5  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 26JAN2025 169157    28.0N  143.0E 4.0-5.4 BAAAA  Bonin Islands              

 

O: 30JAN2025 08:18:30  36.6N  140.5E ML=3.8  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 29JAN2025 169205    37.0N  142.0E 4.0-5.5 AABAA  Off East Coast Honshu      

 

O: 30JAN2025 17:26:15  44.9N  149.6E MB=4.3  EMSC   KURIL ISLANDS                

P: 25JAN2025 169238    43.0N  146.0E 3.5-5.4 BBCAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 30JAN2025 22:15:23  31.5N  114.6W ML=3.8  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:20:36  31.5N  114.6W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:24:24  31.5N  114.6W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:26:43  31.5N  114.6W ML=3.8  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 10:35:52  31.6N  114.6W ML=3.0  EMSC   GULF OF CALIFORNIA

O: 30JAN2025 22:22:38  31.6N  114.6W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 31JAN2025 00:02:59  31.6N  114.5W ML=3.7  EMSC   GULF OF CALIFORNIA

O: 31JAN2025 00:08:56  31.6N  114.6W ML=4.1  EMSC   GULF OF CALIFORNIA           

P: 27JAN2025 169208    32.2N  114.1W 2.0-4.3 BAAAA  SW U.S.A                   

P: 29JAN2025 169210    32.4N  115.8W 2.5-4.8 AAAAA  So. California             

 

O: 30JAN2025 18:43:01  36.6N  121.2W MD=2.1  EMSC   CENTRAL CALIFORNIA           

O: 31JAN2025 07:36:03  36.6N  121.2W MD=2.4  EMSC   CENTRAL CALIFORNIA           

P: 31JAN2025 169183    37.1N  121.5W 2.5-5.0 AAAAA  Central California         

 

O: 30JAN2025 19:17:44  37.3N  121.7W MD=2.4  EMSC   NORTHERN CALIFORNIA          

P: 27JAN2025 169183    37.3N  121.6W 2.5-4.9 BAAAA  Central California         

P: 31JAN2025 169183    37.1N  121.5W 2.5-5.0 AAAAA  Central California         

 

O: 31JAN2025 07:20:32  37.5N  118.8W MD=2.6  EMSC   CENTRAL CALIFORNIA           

P: 31JAN2025 169176    37.3N  118.3W 2.5-4.6 AAAAA  California/Nevada area     

 

NEIC reported an earthquake of M 2.6  in Mammoth Lakes, California was felt with moderate intensity up to II-III in the area(s) of Mammoth Lakes, California at Sanger.

 

O: 31JAN2025 07:12:30  34.4N  119.8W ML=2.7  EMSC   SOUTHERN CALIFORNIA

O: 31JAN2025 07:07:02  34.4N  119.7W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 28JAN2025 169216    35.0N  119.2W 2.5-4.6 BAAAA  So. California             

 

O: 31JAN2025 06:51:58  39.1N  119.0W ML=2.3  EMSC   NEVADA

O: 30JAN2025 17:23:38  39.1N  119.0W ML=2.0  EMSC   NEVADA                       

P: 28JAN2025 169179    38.8N  119.6W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 31JAN2025 03:26:27  40.2N  124.8W MD=2.9  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 30JAN2025 23:40:12  40.3N  124.8W MD=2.1  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 31JAN2025 02:18:53  40.4N  125.1W MD=3.1  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 25JAN2025 169255    40.2N  124.2W 2.5-4.4 CAAAA  Off Coast of No. Calif     

 

ALASKA

 

O: 30JAN2025 07:47:02  62.9N  156.4W ML=3.2  EMSC   CENTRAL ALASKA

O: 30JAN2025 07:00:35  62.9N  156.2W ML=3.5  EMSC   CENTRAL ALASKA               

P: 26JAN2025 169294    61.3N  158.5W 3.2-4.9 BBAAA  Central Alaska             

 

O: 30JAN2025 13:44:18  57.9N  157.1W ML=3.3  EMSC   ALASKA PENINSULA             

P: 26JAN2025 169294    61.3N  158.5W 3.2-4.9 BCAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 30JAN2025 12:48:26  52.0N  126.2W MB=3.7  ECAN OF BELLA COOLA 1, BC 

O: 30JAN2025 12:48:26  52.0N  126.2W ML=3.7  EMSC   BRITISH COLUMBIA, CANADA     

P: 20JAN2025 169004    50.0N  128.0W 3.0-4.9 CBBAA  British Colombia           

 

O: 30JAN2025 19:38:58  62.2N  134.6W MB=3.8  ECAN OF FARO, YT   

O: 30JAN2025 19:38:58  62.2N  134.6W ML=3.8  EMSC   SOUTHERN YUKON TERRITORY, CANA

P: 27JAN2025 169286    59.0N  136.0W 3.0-4.7 BCAAA  Southeast Alaska           

 

ROCKY MOUNTAINS REGION

 

O: 30JAN2025 06:54:15  31.6N  104.5W ML=2.1  EMSC   WESTERN TEXAS

O: 30JAN2025 07:27:35  31.6N  104.5W ML=2.0  EMSC   WESTERN TEXAS

O: 30JAN2025 10:17:25  31.6N  104.2W ML=2.2  EMSC   WESTERN TEXAS

O: 31JAN2025 01:24:44  31.6N  104.3W ML=2.0  EMSC   WESTERN TEXAS                 

P: 27JAN2025 169209    31.6N  103.6W 2.0-4.4 BAAAA  SW U.S.A                   

 

O: 30JAN2025 08:45:36  32.4N  102.1W ML=2.1  EMSC   WESTERN TEXAS

P: 27JAN2025 169209    31.6N  103.6W 2.0-4.4 BABAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 31JAN2025 03:59:08  29.1N   97.8W ML=3.5  EMSC   SOUTHERN TEXAS               

 

NEIC reported an earthquake of M 3.6 in Southern Texas was felt with moderate intensity up to III in the area(s) of Southern Texas at Falls City and II in Texas at Gillett, Karnes City and Poth.

 

 

O: 31JAN2025 03:59:08  29.1N   97.8W ML=3.5  EMSC   SOUTHERN TEXAS               

O: 30JAN2025 02:19:00  47.3N   70.5W MB=0.6  ECAN OF BAIE-SAINT-PAUL, QC         

P: 26JAN2025 169244    47.3N   70.5W 2.0-3.9 BAAAA  Maine                       

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

January 31, 2025

 

Moderate earthquakes of M 4.7-4.8 occurred in the Mauritius and Reunion Islands

and at the antipode in the north Pacific Rise today. These apparently were

promoted by Tropical Cyclone 11S. This cyclone formed at a position in the

Indian Ocean on January 29 - a position antipodal to the M 4.7 today in the

northern East Pacific Rise and is currently located at 16S 67E - antipodal the location

off western Jalisco, Mexico where an M 4.1 occurred today. As expected an M 4.4

moderate earthquake also occurred in Mauritius and Reunion today. This event

at 17S 67E is less than 100 km from the current eye of Tropical Cyclone 11S.

This clear triggering at both local and antipodal locations with this moderate

Tropical Cyclone suggests more scrutiny in terms of seismicity should be

placed on non-major cyclones such as this.  This activity had been anticipated in previous issues of this summary as:

 

"TROPICAL CYCLONE 11S                   

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    11S      2025-01-29  00:00 UT  12.5S   76.3E  045 kts  East of Mauritius            

 

Tropical Cyclone 11S formed today in the area of the south Indian Ocean east of Mauritius with winds up to 45 kts.  It is expected to track to the west over the next several days and to turn south as it reaches La Reunion. It may encourage volcanism in the area of La Reunion and could continue south to areas antipodal to Baja and Southern California." (January 29, 2025)

 

and

 

"Tropical Cyclone 11S continued today in the area of the south Indian Ocean east of Mauritius with winds up to 45 kts.  It is expected to track to the west over the next several days and to turn south as it reaches La Reunion. It may encourage volcanism in the area of La Reunion and could continue south to areas antipodal to Baja and Southern California. The current antipode is at 16N 107W near Jalisco and Michoacan, Mexico where antipodal effects could enhance seismicity at this time" (January 30, 2025)

 

The activity in Mauritius may have been triggered by SFE associated with solar

flare 9530 as it occurred near the peak of that flare. SWPC data on

this flare follow:

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 

9530       2349   0001      0010   C3.8      (January 30, 2025)   3.9E-03  

Mauritius, Reunion M 4.4 00:08 UT

Gulf of California M 4.13.7 00:03 UT M 4.1 00:08 UT

Bonin Is. M 4.5 00:19 UT

 

 

Minor storms are expected in the geomagnetic field in the next two days by SWPC.

Such storms could break the current climate consisting of the lack of strong

earthquakes. This could occur as early as today. Events triggered by the

geomagnetic excursion would be likely near the geomagnetic equator or at

high latitudes. A strong event may yet occur in the area of South or Central

America during these storms, although the area is currently uncommonly quiet.

 

A strong series of earthquakes also occurred north of the antipode to TC 11S

in the area of northern Baja California, Mexico. This series included several

events with magnitude greater than four today and may be enhanced as TC 11S

tracks to the west and south and Baja California becomes more antipodal

to the eye. The first event of M>=4 in northern Baja today occurred less

than a minute after the M 4.4 in the Mauritius-Reunion area and less than an

hour after the M 4.7 in the Northern East Pacific Rise (see above). This

activity in northern Baja California is at the fourth node (90 degrees)

from the M 6.8 in Kyushu, Japan of January 13, 2025 and at the third node (120 degrees)

from the M 7.1 in Tibet of January 7, 2025 and may have been promoted

by energy from those sources.

 

Light earthquakes also continued in southern California near the region devastated

by recent wild fires. Two events in this area of M 2.8 and M 2.2 at 34.4N 119.7W

north of Santa Barbara may have been promoted through unloading of the surface

during those fires as suggested in previous issues of this summary.

Today's events were widely felt in the Santa Barbara area. NEIC reported maximum

intensity III in Santa Barbara, and II in Goleta, California.

The strongest earthquake in the world today was an M 5.3 in the Central Mid-Atlantic Ridge.

This epicenter is near the antipode of recent moderate to moderately strong

seismicity in the northern New Ireland/New Britain area. This epicenter

is also at 142 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025. Reflected and refracted

seismic energy from the inner-outer core boundary returns to the surface at

this distance and often enhances seismicity at this distance from major earthquakes

following those events. It is also likely it was promoted by strong tidal

stresses from the new moon of January 29, 2025 as it lies at a longitude

where such stresses were maximized during this event as reported in

previous issues of this summary:

 

 

"The new moon will arrive on January 29, 2025 at 12:36 UT. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon, Santa Cruz, and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (January 29, 2025)

 

NEIC reported an earthquake of M 4.4 in Attiki, Greece was felt with moderate intensity up to II-III in the area(s) of Attiki, Greece at Amarousion, Athens, Kapandrition, Neon, Viron, Ayios Paneleimon and II in Melissia, Moskhaton, Vrilissia, Zefirion, Aghios Dimitrios and in Kimi Evvoia.

The area of Greece has seen enhanced seismicity with the new moon of January 29

as it lies at a latitude where tidal stresses were maximized with that new moon

as reported in previous issues of this summary:

 

"A strong series of minor earthquakes has been occurring in the Dodecanese

Islands of Greece over the past day. It is expected to continue through the

end of January. These epicenters are at a longitude which is at local solar

midnight when the new moon occurs on January 29, 2025 (see above) and could be enhanced

at that time." (January 29, 2025)

 

The new moon will arrive on January 29, 2025 at 12:36 UT. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon, Santa Cruz, and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (January 29, 2025)

 

An earthquake of M 4.1 in the Aegean Sea was also felt in Greece today. EMSC reported it as a light to moderate shaking in the Aegean Sea at Agios Loukas, Glazia, Eretria, Oropos, Kumi, Vasiliko, Dionysos, Chalkida, Nea Makri, Kifisia, Acharnes, Melissia, Amarousio among others.

 

NEIC reported an earthquake of M 2.6  in Mammoth Lakes, California was felt with moderate intensity up to II-III in the area(s) of Mammoth Lakes, California at Sanger.

 

NEIC reported an earthquake of M 3.6 in Southern Texas was felt with moderate intensity up to III in the area(s) of Southern Texas at Falls City and II in Texas at Gillett, Karnes City and Poth.

 

 

NEIC reported an earthquake of M 4.8 in Taiwan was felt with moderate intensity up to V in the area(s) of Taiwan in Changhua, IV in Nantou, Tainan; III in Chiayi, Kaohsiung, Taichung, Tainan, Yunlin and Fujian, China and II in Taiwan in Pingtung, and Taipei Counties.

 

EMSC reported an earthquake of M 4.1 in Southern Iran was felt with  intensity up to IV in the area(s) of Southern Iran.

 

EMSC reported an earthquake of M 4.1 in Northern Luzon, Philippines was felt with  intensity up to IV in the area(s) of Northern Luzon, Philippines at Burgos.

 

 

TROPICAL CYCLONE ELVIS (12S)                  

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    ELVIS    2025-01-31  00:00 UT  31.7S   48.5E  050 kts  South of Madagascar        

 

Tropical Cyclone Elvis (12S) continued today in the area of the south Indian Ocean South of Madagascar with winds up to 50 kts.  It is expected to track to the southeast over the next several days. Around February 1, 2025 it could reach 40S 55E, an area antipodal to the coast of northern California. Some enhanced seismicity is likely off the coast of Northern California at that time. A series of light earthquakes in this area today may precede the antipodal arrival of TC Elvis.

 

 

TROPICAL CYCLONE 11S                    

 

----  -------  ----------  --------  -----  ------  -------  ---------------

TC    11S      2025-01-31  00:00 UT  16.0S   72.7E  045 kts  East of Mauritius            

 

Tropical Cyclone 11S continued today in the area of the south Indian Ocean east of Mauritius with winds up to 45 kts.  It is expected to track to the west over the next several days and to turn south as it reaches La Reunion. It may encourage volcanism in the area of La Reunion and could continue south to areas antipodal to Baja and Southern California. The current antipode is at 16N 107W near Jalisco and Michoacan, Mexico where antipodal effects could enhance seismicity at this time.

 

 

SOLAR FLARES

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

-------------------------------------------------------------------------

 

 

9410       0022   0026      0030   C4.0      (January 30, 2025)   1.8E-03  

Mindoro, Philippines M 3.9 00:22 UT

 

9460       0527   0536      0548   C2.5      (January 30, 2025)   2.9E-03  

Kermadec Is. M 4.3 05:39 UT

Oaxaca M 4.0 05:43 UT

 

9470       1121   1129      1147   C2.0      (January 30, 2025)   3.0E-03  

Bonin Is. M 4.3 11:52 UT

 

9480       1200   1213      1217   C3.8      (January 30, 2025)   2.4E-03  

9490       1323   1332      1342   C2.1      (January 30, 2025)   2.5E-03  

Strait of Gibraltar M 1.6 13:23 UT

 

9500       1342   1416      1443   C8.1      (January 30, 2025)   2.0E-02  

Honshu M 3.6 13:42 UT

 

9510       2125   2139      2146   C4.1      (January 30, 2025)   4.1E-03  

9520       2248   2252      2258   C2.6      (January 30, 2025)   1.5E-03  

9530       2349   0001      0010   C3.8      (January 30, 2025)   3.9E-03  

Mauritius, Reunion M 4.4 00:08 UT

Gulf of California M 4.13.7 00:03 UT M 4.1 00:08 UT

Bonin Is. M 4.5 00:19 UT

 

 

 

GEOMAGNETIC FIELD:  minor storms January 31 and February 1 active February 2.  Solar M-flare chance: 45% X-class: 5% proton storm: 1%

 

AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux)     6  2  4 22:00 2 144 184

 

A strong Gamma Ray Burst was recorded by SWIFT on January 29, 2025 at 04:45:09 UT (#250129A).  A preliminary UVOT Magnitude  of V=17.24 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 28, 2025 at 16:22:53 UT (#250128B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 14, 2025 at 07:33:19 UT (#250114A).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 8, 2025 at 10:23:06 UT (#250108B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 3, 2025 at 15:44:17 UT (#250103B).  A preliminary UVOT Magnitude was not assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on January 1, 2025 at 13:22:50 UT (#250101A).  A preliminary UVOT Magnitude of V=18.10 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 29, 2024 at 04:13:05 UT (#241229B).  A preliminary UVOT Magnitude of V>20.0 was assigned to this GRB.

 

A strong Gamma Ray Burst was recorded by SWIFT on December 28, 2024 at 03:57:15 UT (#241228A).  A preliminary UVOT Magnitude of V>19.1 was assigned to this GRB.

 

 

MODERATE QUAKE AT 103 DEGREES FROM KYUSHU, JAPAN SHAKES SOUTHERN TEXAS

 

EARTHQUAKE SUMMARY FOR JANUARY 29, 2025

 

 

A moderate M 4.5 earthquake occurred in the Falls City, Southern Texas region today. NEIC reported this earthquake was felt with maximum intensity V in Southern Texas at Gillett, Bastrop; IV in Ecleto, Falls City, Hobson, Karnes City, Kenedy, Poth, Runge, Stockdale, San Antonio; III in Whitney, Richmond, Devine, Jourdanton, Kerrville, Pleasanton, Adkins, Cibolo, Converse, Floresville, La Vernia, Marion, New Braunfels, Nixon, Saint Hedwig, Schertz, Seguin, Smiley, Sutherland Springs, Yorktown, San Antonio, Burnet, Del Valle, Elgin, Leander, Manor, Round Rock Austin and as far as 200 km from the epicenter. Like a number of other significant earthquakes in the eastern U.S. this week this event also occurred at 103 degrees from the M 6.8 in Kyushu, Japan of January 13, 2025 and was probably promoted by energy from that source.

It was also at 102 degrees from the Vanuatu earthquake of December 17, 2024.

It may have been promoted by the new moon which arrived today as described in this summary as:

 

"The new moon will arrive on January 29, 2025 at 12:36 UT. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon, Santa Cruz, and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils (and western Alaska) among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (January 26-29, 2025)

 

This earthquake follows a series of minor to moderate quakes in the area over the past several years and has been covered in this summary. Two earthquakes of M>=4.5 have hit this area within about 200 km of this epicenter in the past 35 years - an M 4.8 on October 20, 2011 and an M 4.7 on February 7, 2024. When the M 4.4 and 4.7 hit the area on February 17, 2024, this summary noted:

 

"The strongest earthquake in the U.S. or Canada today was an M 4.7 in southern Texas. This event was reported by NEIC to have been felt with intensity up to VI in Falls City, Texas. Aftershocks of M 3.7 and 3.3 followed and were felt in the same area. EMSC reported the mainshocks were felt as far as San Antonio where beds shook and people were awakened. It followed a series of foreshocks including an M 4.4 twelve minutes earlier which was felt with intensity up to V in Falls City, Texas. An M 3.9 foreshock  was also felt with intensity up to V in the Falls City area of Texas. Today's activity occurred within minutes of local solar midnight and may have been promoted by strong tidal stresses which maximize near this hour. An X2.3 solar flare occurred on February 16, 2024 when this epicenter was at local solar midnight. This flare may have helped trigger this unusually large earthquake. Data from SWPC for this flare follows:

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

 

 700       0642   0653      0721   X2.5      (February 16, 2024)   8.4E-02  

Central Peru M 4.4 06:54 UT

Sumatra M 3.9 06:55  UT

Los Angeles, California M 3.4 07:48 UT

 

Today's activity follows an M 3.9 in the same area of Texas which occurred on February 12, 2024 and  was noted in this summary at the time as:

 

"An earthquake of M 3.8-3.9 also shook southern Texas today. NEIC reported it was felt with intensity up to IV in the Falls City, Texas area. The only earthquake within about 100 km of this epicenter of M>3.9 in the past 35 years were events of M 4.8 on October 20, 2011 and M 4.3 on April 9, 1993. An M 3.3 hit the same area on February 9, 2024. At the time this summary noted:

 

"A light earthquake of M 3.3 also occurred in Southern Texas today. NEIC reported this earthquake of M 3.3 in Southern Texas was felt with intensity up to IV in the area(s) of Southern Texas in Falls City. Light earthquakes in this region began  in late 2020. The largest earthquakes in the region in recent years were of M 3.9-4.0 on October 9, 2023 and September 14, 2023. Recent events in the area suggest triggering at this level in this area is likely at this time." (February 9, 17, 2024)

 

On October 20, 2011 when this series began in earnest this summary noted:

 

 

 

"The unusual earthquake in southern Texas was the strongest in that region

in recorded history. The only event of M>=4 in the area since 1990 was an M 4.3 on April 9, 1993. There is no record of any earthquake in this area off south-central Texas of M>4 since events were first recorded in the area nearly 200 years ago. It may be due to oil extraction in the area but this is simply speculation. This is one of the strongest earthquakes ever recorded in Texas. It may be related to the landfall of Hurricane Irwin which occurred several days ago to the south of this. We had suggested this storm an Hurricane Jova could have a significant effect on regional seismicity in our summaries of mid-October. These had noted: "The peculiar motion of this storm, however indicates that if it should reach the coast of Mexico it could trigger a strong to major earthquake along the coast of western Mexico. This is a storm to keep an eye on especially since Tropical Storm Jova is aiming for the same area. The combined effect of two such storms so close together could be significant." (Mid-October, 2011 summaries)

 

 

A series of unusual earthquakes in the eastern U.S. have occurred in the past several days. These included an M 4.0 in Maine and an M 2.6 in New Jersey as well as an M 2.2 in Ohio. In previous issues of this summary these were remarked on as:

 

 

"Today's earthquake (in Maine) occurred at 103 degrees from the M 6.8 in Kyushu, Japan of  January 13, 2025 - the last major earthquake in the world. A smaller event hit the area of New York City and New Jersey on January 25 which also  was at 103 degrees from the Kyushu epicenter and at 105 degrees from the M 7.1 in  Tibet of January 7, 2025. As if to emphasize this distance relation from Kyushu, Japan earthquakes of M 3.0 in western Texas (100 degrees from Kyushu); an M 4.2 occurred in the Gulf of California (101 degrees from Kyushu) later in the day as well as an M 1.5 in western Tennessee (at 102 degrees from Kyushu) and an M 2.2 was recorded in Ohio (at 103 degrees from Kyushu) later today within minutes of local solar midnight, a prime time for tidal and/or geomagnetic enhancement of seismicity. It was also located at 103 degrees from Kyushu. These were the only other events listed today in the eastern U.S. today. ..." (January 28, 2025)

 

It is remarkable, then that the earthquake of M 4.5 today in Southern Texas today occurred also at 103 degrees from the M 6.8 in Kyushu, Japan and was probably promoted by energy associated with that event. An M 2.6 aftershock of the M 4.5 mainshock occurred near local solar midnight and was probably promoted by strong tidal stresses with the New moon. The aftershock of M 2.2 in Southern Texas was felt with moderate intensity up to II-III in the area(s) of Southern Texas near Falls City.

 

Forecast 168897 had expected enhanced seismicity up to M  4.6 within about

100 km of this epicenter in southern Texas was likely at the end of January, 2025.

 

O: 30JAN2025 06:17:21  29.1N   97.9W ML=2.6  EMSC   SOUTHERN TEXAS

O: 30JAN2025 03:26:38  29.1N   97.8W ml=4.5  ANSS   Falls City Texas

O: 30JAN2025 03:26:39  29.1N   97.8W MW=4.5  EMSC   SOUTHERN TEXAS               

P: 15JAN2025 168897    28.0N   98.0W 3.0-4.6 DBAAA  Northern Mexico            

 

This series of unusual earthquakes in the eastern U.S. could precede enhanced seismicity in the region of Alaska and the Pacific-North American plate boundary. This area is often seen to be activated following similar sets of events in  eastern North America.

 

With that in mind, it should not be surprising that a pair of moderate earthquakes in Alaska followed the Texas quake about an hour later. The strongest of these was an M 5.2 in Central Alaska. NEIC reported it was felt with maximum intensity V in Alaska at McGrath; III in Anchorage, Crooked Creek, Kalskag, Shageluk, Nikolai, Huslia, Kaltag, Ruby, and lightly in Wasilla.

An earthquake of M 4.4 in the Rat Islands, Alaska followed that event 13 minutes  later. An M 4.5 in the Fox Islands, Alaska occurred several hours later and was not reported felt.

 

The strongest earthquake in the U.S. or Canada today was the M 5.2 in Central Alaska. This is the strongest earthquake within about 250 km of this epicenter in more than 35 years. An M 5.7 hit about 300 northeast of this on February 3, 2000 almost exactly 25  years ago but no other such earthquakes have been

noted by NEIC since 1990.

 

This may be related to the recent series of unusual earthquakes in the  U.S. and Canada in the past week as such unusual events commonly follow rare earthquakes in the eastern U.S. or Canada.

 

"This series of unusual earthquakes in the eastern U.S. could precede enhanced seismicity in the region of Alaska and the Pacific-North American plate boundary. This area is often seen to be activated following similar sets of events in eastern North America." (January 29-30, 2025)

 

It is likely that this earthquake in Central Alaska was promoted by the new moon of January 29 as it lies on a longitude where the tidal effects of that alignment were maximized as noted in the tidal forecast for this new moon in previous issues of this summary (see above and in TIDAL forecast - this issue).

 

 

Forecast 169294 had expected enhanced seismicity within about 200 km of

this M 5.2 in central Alaska was likely around January 26, 2025.

 

O: 30JAN2025 04:40:08  62.9N  156.3W mw=5.2  ANSS   Central Alaska

O: 30JAN2025 04:40:09  63.0N  156.2W MW=5.2  EMSC   CENTRAL ALASKA               

P: 26JAN2025 169294    61.3N  158.5W 3.2-4.9 BBAAA  Central Alaska             

 

An M 4.2 also occurred today off the coast of Washington State. NEIC reported an earthquake of M 4.2 off the coast of Washington  was felt with moderate intensity up to II-III in the area(s) of Washington at Lake Stevens, Kirkland, Blaine, Spanaway, Ocean Shores and Victoria, British Columbia, Canada. An M 3.0 aftershock was also reportedly lightly felt.  The last earthquake within about 200 km of this event off Washington was an M 4.6 on November 25, 2024. These may be aftershocks of an M 6.4 which shook the area on July 11, 2024 after a series of foreshocks. At the time this summary noted:

 

 

 

"The strongest earthquake in the world today was an M 6.4 in the series in Vancouver Island, British Columbia which began July 4, 2024. NEIC reported it was lightly felt with moderate intensity up to IV in Tofino, Canada. EMSC reported light shaking in Chilliwack, Canada. Several moderate aftershocks – including an M 5.4 - were also felt in this region. This summary has extensively covered this swarm in previous issues as in the last summary which noted:

 

 

"This epicenter (in Mindanao, Philippines) is near 100 degrees from the M 6.7 yesterday south of Africa and at the same distance from the continuing swarm of earthquakes in the Vancouver Island area of British Columbia, Canada. With an earthquake at this depth these areas are at the shadow zone boundary for S- and P-waves (normally 102-103 degrees distance for earthquakes that occur near the surface. Thus the event today in Mindanao is considered a triggered earthquake from the M 6.7 South of Africa yesterday. Further activity (perhaps) a strong earthquake in Vancouver is also likely at this time due to the concentration of energy from the area south of Africa. A further complication perhaps leading to additional  enhancement in Vancouver, B.C. is the track of Hurricane Beryl. The remnants Hurricane Beryl is now located over the northeastern U.S. where it has dropped large reserves of water over the past two days.  This summary has long been a proponent of the theory that effects of strong meteorological events  (nor'easters and hurricanes, for example) affecting the Northeast U.S.  can trigger strong earthquakes on the Pacific-North American plate boundary in particular from California north to Alaska." (July 11, 2024)

 

Today's M 4.2 is located at the fifth node (72 degrees) from the M 6.8 in Kyushu Japan of January 13, 2025 and was probably promoted by energy from that source.

 

Forecast 169267 had expected today's event within about 100 km was likely towards the end of January, 2025.

 

O: 29JAN2025 19:45:48  47.9N  128.3W ML=3.0  EMSC   OFF COAST OF WASHINGTON

O: 29JAN2025 13:53:36  47.8N  128.3W MW=4.2  EMSC   OFF COAST OF WASHINGTON      

P: 24JAN2025 169267    48.7N  129.0W 2.8-5.0 BAAAA  Vancouver Island area      

 

An unusual earthquake of M 2.7 also occurred today near Sao Paulo, Brazil. This event occurred while strong flooding was ravaging the area and may have helped promote this event at this time. Two earthquakes of M>=2.7 have hit near Sao Paulo, Brazil in the past 35 years - an M 4.3 on June 18, 2024 and an M 4.1 on May 22, 1998. At the time of the June, 2024 event this summary noted:

 

 

“An unusual earthquake of M 4.3 also occurred today in the region of Sao Paulo, Brazil. It was followed by a minor aftershock of M 3.2. This area is near the Southern Atlantic geomagnetic anomaly and follows several strong earthquakes in that region on June 14, 2024, two of which were of M 5.9. Like those earthquakes, today's activity in Brazil was also closely associated with a solar flare

 

...

 

This earthquake of M 4.3 is the strongest earthquake within 400 km of this Brazilian epicenter in more than 35 years. An M 4.1 hit north of this on May 22, 1998. This epicenter is near the antipode of the M 7.4 in Taiwan of April 2, 2024 and may have been promoted by antipodal triggering from that event - the last major earthquake in the world" (June 18, 2024)

 

O: 29JAN2025 16:36:19  20.0S   48.8W MR=2.7  EMSC   SAO PAULO, BRAZIL            

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

For most events there are two listings. The first line is the observed event starting with "O:" for Observed. There follows the date, month and year, the time in UT hours:minutes:seconds, the latitude and longitude, the given magnitude and the reporting agency followed by the geographic location. The second line starts with "P:" This is the forecast event as forecast in our summaries normally more than a month in advance. Magnitudes may vary in response to updated seismic watches and daily variations due to tidal and other influences. This line has the forecast date, month and year, the forecast number, latitude, longitude and forecast magnitude range.  This is followed by a comparison between the forecast and the event. The comparison includes letters A-D. The first is number of days difference from predicted (A:up to 2, B3-5; C:6-10; D:more than 10), Difference in latitude (A:up to 1 degree; B:1-2 degrees; C:2-4 degrees; D:more than 4 degrees); longitude (same comparison as with latitude); magnitude (A: within forecast range; B: higher than forecast range; C: lower than forecast range; D: no comparison possible). The last letter is a stand in for a future comparison which needs to be done statistically after a large number of forecasts have been made. In previous data, an excellent match is generally AAAAA; a good match as one or two B's; a fair match has several B's and C's and a poor match is one which contains a number of C's or D's. 

 

ASIA

 

O: 30JAN2025 06:49:40  23.2N  120.5E ML=4.0  EMSC   TAIWAN

O: 30JAN2025 07:16:18  23.2N  120.6E mb=4.8  EMSC   TAIWAN

O: 30JAN2025 02:15:22  23.3N  120.6E ML=4.3  EMSC   TAIWAN

O: 30JAN2025 02:11:53  23.2N  120.6E MW=5.1  EMSC   TAIWAN                       

P: 27JAN2025 169170    23.0N  122.0E 4.0-5.4 BABAA  Taiwan                     

 

NEIC reported an earthquake of M 5.1 in Taiwan was felt with moderate intensity up to V in the area(s) of Taiwan in Changhua, IV in Nantou, Tainan; III in Chiayi, Kaohsiung, Taichung, Tainan, Yunlin and Fujian, China and II in Taiwan in Pingtung, and Taipei Counties.

 

O: 29JAN2025 22:21:55  22.5N   94.1E ML=3.6  EMSC   MYANMAR                      

P: 28JAN2025 169163    23.0N   95.0E 4.0-5.4 AAAAA  Myanmar                    

 

O: 30JAN2025 06:06:50  28.1N   52.1E ML=3.3  EMSC   SOUTHERN IRAN                

P: 24JAN2025 169220    30.0N   52.0E 3.8-5.4 CBAAA  So. Iran                   

 

O: 29JAN2025 18:17:08  28.2N   87.5E ML=4.2  EMSC   WESTERN XIZANG               

P: 27JAN2025 169165    28.0N   88.0E 3.5-5.4 AAAAA  Nepal                      

 

O: 30JAN2025 04:27:58  34.0N   89.3E MB=4.8  EMSC   XIZANG-QINGHAI BORDER REGION 

P: 30JAN2025 169232    36.0N   93.0E 3.8-5.2 ABCAA  Xizang                     

 

INDONESIA AND PHILIPPINES

 

O: 30JAN2025 02:18:24   2.7S  126.9E MB=5.0  EMSC   CERAM SEA, INDONESIA         

P: 30JAN2025 169102     3.0S  128.0E 4.0-5.5 AAAAA  Ceram area                 

 

O: 29JAN2025 12:29:40   3.2S  100.2E MB=4.5  EMSC   KEP. MENTAWAI REGION, INDONESI

P: 26JAN2025 169115     2.0S   99.0E 4.0-5.4 BBAAA  So. of Sumatera            

P: 29JAN2025 169095     1.0N  100.0E 4.0-5.4 ACAAA  So. Sumatera               

 

O: 29JAN2025 21:23:33   4.5S  129.3E ML=4.4  EMSC   BANDA SEA                    

P: 23JAN2025 169102     4.0S  129.0E 4.0-5.6 CAAAA  Ceram area                 

P: 30JAN2025 169120     3.0S  130.0E 4.0-5.5 ABAAA  West Irian, PNG            

 

O: 29JAN2025 20:03:55   5.4S  153.6E MB=4.8  EMSC   NEW IRELAND REGION, P.N.G.   

P: 28JAN2025 169107     6.0S  153.0E 4.0-5.4 AAAAA  New Britain                

 

O: 29JAN2025 23:48:46   6.7S  129.4E ML=4.2  EMSC   BANDA SEA

O: 29JAN2025 08:06:16   7.2S  129.2E ML=4.7  EMSC   KEPULAUAN BABAR, INDONESIA   

P: 29JAN2025 169099     8.0S  129.0E 4.0-5.6 AAAAA  Banda Sea                  

 

O: 30JAN2025 04:10:35   8.4S  109.2E ML=4.0  EMSC   JAVA, INDONESIA              

P: 31JAN2025 169114     9.0S  111.0E 4.0-5.5 AABAA  So. of Java                

 

O: 30JAN2025 00:56:22   9.4S  118.1E MB=4.3  EMSC   SUMBAWA REGION, INDONESIA    

P: 30JAN2025 169317    10.0S  116.0E 4.0-5.4 AABAA  Sumbawa Island area        

 

O: 29JAN2025 16:50:30  14.0N  124.4E ML=4.4  EMSC   CATANDUANES, PHILIPPINES     

P: 22JAN2025 169138    13.0N  124.0E 3.5-5.1 CAAAA  Luzon, Philippines         

 

CENTRAL AND SOUTH AMERICA

 

O: 29JAN2025 20:34:43   4.8S   79.0W ML=4.5  EMSC   PERU-ECUADOR BORDER REGION   

P: 19JAN2025 168842     4.0S   80.0W 4.0-5.4 CAAAA  Ecuador                    

 

O: 30JAN2025 05:03:43   6.8N   73.0W MB=4.7  EMSC   NORTHERN COLOMBIA            

P: 30JAN2025 169088     7.0N   73.0W 4.0-5.5 AAAAA  Colombia                   

 

O: 29JAN2025 22:01:24  15.5N   95.1W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 29JAN2025 169128    17.0N   95.0W 3.5-5.5 ABAAA  Chiapas, Mexico            

 

O: 30JAN2025 05:43:03  15.5N   96.8W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 24JAN2025 169146    15.0N   96.0W 3.5-5.3 CAAAA  Oaxaca, Mexico             

 

O: 30JAN2025 02:15:27  17.9N  101.7W ML=4.2  EMSC   GUERRERO, MEXICO             

P: 30JAN2025 169147    16.0N  100.0W 3.5-5.2 ABBAA  Oaxaca, Mexico             

 

O: 29JAN2025 21:56:41  18.3N   68.6W ML=3.2  EMSC   DOMINICAN REPUBLIC           

P: 29JAN2025 169150    19.0N   69.0W 3.4-5.0 AAAAA  Puerto Rico                

 

O: 29JAN2025 12:17:11  18.4N   64.3W MD=3.3  EMSC   VIRGIN ISLANDS REGION        

P: 31JAN2025 169136    18.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

 

O: 29JAN2025 17:58:07  18.4N   72.7W ML=3.1  EMSC   HAITI REGION                 

P: 26JAN2025 169156    20.0N   71.0W 3.0-4.6 BBBAA  Bahamas/No. Caribbean      

 

O: 29JAN2025 19:11:40  18.4N  103.6W ML=3.6  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 25JAN2025 169141    18.0N  103.0W 3.5-5.3 BAAAA  Michoacan, Mexico          

 

O: 29JAN2025 21:53:25  19.0N   66.9W MD=3.0  EMSC   PUERTO RICO REGION           

P: 30JAN2025 169150    19.0N   66.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 29JAN2025 18:53:46  19.9N   70.6W ML=3.1  EMSC   DOMINICAN REPUBLIC REGION    

P: 26JAN2025 169156    20.0N   71.0W 3.0-4.6 BAAAA  Bahamas/No. Caribbean      

P: 29JAN2025 169150    19.0N   69.0W 3.4-5.0 AABAA  Puerto Rico                

 

O: 29JAN2025 10:59:06  20.0N  104.0W ML=3.6  EMSC   JALISCO, MEXICO              

P: 25JAN2025 169141    18.0N  103.0W 3.5-5.3 BBAAA  Michoacan, Mexico          

 

O: 29JAN2025 16:36:19  20.0S   48.8W MR=2.7  EMSC   SAO PAULO, BRAZIL            

 

 

AFRICA AND EUROPE

 

 

O: 30JAN2025 04:36:03  35.5N   22.2E ML=4.0  EMSC   CENTRAL MEDITERRANEAN SEA    

P: 31JAN2025 169190    34.0N   25.0E 3.0-4.4 ABBAA  Crete                      

 

O: 30JAN2025 01:37:44  36.7N   26.9E ML=3.4  EMSC   DODECANESE ISLANDS, GREECE

O: 30JAN2025 04:24:02  36.4N   26.4E ML=3.5  EMSC   DODECANESE ISLANDS, GREECE   

P: 26JAN2025 169173    36.0N   26.0E 3.0-4.7 BAAAA  Aegean Sea                 

 

SOUTHWEST PACIFIC

 

O: 29JAN2025 20:15:41  17.7S  178.9W MB=4.4  EMSC   FIJI REGION                  

P: 25JAN2025 169319    17.0S  178.0W 4.0-5.6 BAAAA  Tonga Islands              

 

No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.

 

OCEAN RIDGES

 

O: 30JAN2025 00:53:35  28.6N   17.9W ML=1.7  EMSC   CANARY ISLANDS, SPAIN REGION

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 30JAN2025 05:39:10  31.4S  179.9W MB=4.3  EMSC   KERMADEC ISLANDS REGION      

P: 29JAN2025 169343    30.0S  178.0W 4.0-5.5 ABBAA  No. Kermadec Islands       

 

O: 29JAN2025 15:20:29  35.1S  179.2W MB=4.7  EMSC   EAST OF NORTH ISLAND, N.Z.   

P: 28JAN2025 169349    34.0S  180.0W 4.0-5.5 ABAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

No earthquakes of M>=4 were located in Japan or the Kuril Islands today.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 29JAN2025 21:01:16  31.4N  115.5W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 29JAN2025 10:43:17  31.6N  115.1W ML=3.8  EMSC   BAJA CALIFORNIA, MEXICO

O: 29JAN2025 19:57:15  31.6N  115.2W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 29JAN2025 21:33:50  31.6N  115.2W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 29JAN2025 20:22:59  31.4N  115.6W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

P: 29JAN2025 169210    32.4N  115.8W 2.5-4.8 AAAAA  So. California             

 

O: 29JAN2025 09:07:52  33.5N  116.9W ML=2.0  EMSC   SOUTHERN CALIFORNIA           

P: 29JAN2025 169211    33.4N  116.7W 2.5-4.7 AAAAA  So. California             

 

O: 29JAN2025 14:53:41  35.2N  118.5W ML=2.2  EMSC   CENTRAL CALIFORNIA           

P: 28JAN2025 169215    35.5N  116.4W 2.5-4.5 AAAAA  So. California             

 

O: 29JAN2025 07:39:35  35.7N  117.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 22JAN2025 169218    35.9N  117.7W 2.5-4.6 CAAAA  So. California             

 

O: 30JAN2025 01:09:27  39.5N  119.5W ML=2.0  EMSC   NEVADA                       

P: 28JAN2025 169179    38.8N  119.6W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 29JAN2025 18:33:17  40.3N  124.9W MD=2.2  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 29JAN2025 18:38:18  40.3N  124.8W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA

P: 25JAN2025 169255    40.2N  124.2W 2.5-4.4 BAAAA  Off Coast of No. Calif     

 

O: 29JAN2025 09:52:43  41.9N  119.6W ML=2.8  EMSC   NEVADA                       

O: 29JAN2025 08:59:11  41.9N  119.6W ML=2.3  EMSC   NEVADA

P: 26JAN2025 169258    42.2N  120.3W 2.0-4.1 BAAAA  Oregon state, U.S.         

 

ALASKA

 

O: 29JAN2025 14:08:56  51.7N  173.5W ML=3.6  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 27JAN2025 169272    50.6N  174.7W 3.5-4.9 ABAAA  Andreanoff Isls, Aleutians 

 

O: 30JAN2025 04:53:11  52.0N  178.4E MB=4.4  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 27JAN2025 169283    52.0N  178.0E 4.0-5.8 AAAAA  Rat Islands                

 

O: 30JAN2025 06:14:32  52.6N  168.8W MB=4.5  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 29JAN2025 169276    53.5N  167.3W 3.5-5.1 AAAAA  Fox Islands, Aleutians     

 

O: 29JAN2025 16:19:03  53.9N  163.3W MW=4.2  EMSC   UNIMAK ISLAND REGION, ALASKA 

P: 26JAN2025 169287    54.2N  165.0W 3.5-5.1 BAAAA  Unimak Islands, Aleutians  

 

O: 29JAN2025 08:54:05  57.1N  155.0W ML=3.0  EMSC   ALASKA PENINSULA             

P: 17JAN2025 169000    55.8N  156.7W 3.5-4.9 CBAAA  Alaska Peninsula           

 

NEIC reported an earthquake of M 3.1 in Southern Alaska was felt with moderate intensity up to II-III in the area(s) of Southern Alaska at Kodiak.

 

O: 29JAN2025 18:59:04  57.5N  152.7W ML=3.1  EMSC   KODIAK ISLAND REGION, ALASKA 

P: 28JAN2025 169292    60.2N  153.2W 3.2-5.2 ACAAA  Central Alaska             

 

O: 30JAN2025 04:40:08  62.9N  156.3W mw=5.2  ANSS   Central Alaska

O: 30JAN2025 04:40:09  63.0N  156.2W MW=5.2  EMSC   CENTRAL ALASKA               

P: 26JAN2025 169294    61.3N  158.5W 3.2-4.9 BBAAA  Central Alaska             

 

O: 29JAN2025 10:58:03  63.6N  152.1W ML=3.0  EMSC   CENTRAL ALASKA               

P: 30JAN2025 169294    62.6N  151.4W 3.2-5.3 AAAAA  Central Alaska             

 

O: 29JAN2025 19:44:04  63.8N  147.7W ML=4.0  EMSC   CENTRAL ALASKA               

P: 26JAN2025 169293    61.3N  150.9W 3.2-5.1 BCAAA  Central Alaska             

 

NEIC reported an earthquake of M 4.0 in Central Alaska was felt with moderate intensity up to II-III in the area(s) of Central Alaska in the area of Denali National Park at Eielson AFB, Fore Wainwright, North Pole, Fairbanks.

 

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 29JAN2025 16:02:46  51.5N  130.9W MB=3.7  ECAN OF PORT HARDY, BC              

P: 28JAN2025 169274    50.6N  130.5W 3.0-5.4 AAAAA  British Colombia           

 

O: 29JAN2025 20:30:18  44.3N  120.9W ML=2.7  EMSC   OREGON                       

P: 24JAN2025 169258    45.3N  121.7W 2.0-3.9 BAAAA  Oregon state, U.S.         

 

O: 29JAN2025 19:45:48  47.9N  128.3W ML=3.0  EMSC   OFF COAST OF WASHINGTON

O: 29JAN2025 13:53:36  47.8N  128.3W MW=4.2  EMSC   OFF COAST OF WASHINGTON      

P: 24JAN2025 169267    48.7N  129.0W 2.8-5.0 BAAAA  Vancouver Island area      

 

O: 29JAN2025 16:02:46  51.5N  130.9W ML=3.7  EMSC   HAIDA GWAII REGION           

P: 28JAN2025 169274    50.6N  130.5W 3.0-5.4 AAAAA  British Colombia           

 

ROCKY MOUNTAINS REGION

 

O: 29JAN2025 09:21:48  31.6N  104.5W ML=2.7  EMSC   WESTERN TEXAS

O: 30JAN2025 06:46:39  31.6N  104.5W ML=2.2  EMSC   WESTERN TEXAS

O: 30JAN2025 06:54:15  31.6N  104.5W ML=2.1  EMSC   WESTERN TEXAS

O: 30JAN2025 05:12:21  31.7N  104.3W ML=2.3  EMSC   WESTERN TEXAS

O: 29JAN2025 07:02:26  31.6N  104.5W ML=2.1  EMSC   WESTERN TEXAS                

P: 27JAN2025 169209    31.6N  103.6W 2.0-4.4 AAAAA  SW U.S.A                   

 

O: 29JAN2025 10:13:16  33.0N  100.9W ML=3.0  EMSC   WESTERN TEXAS

O: 29JAN2025 20:00:35  33.0N  101.3W ML=2.0  EMSC   WESTERN TEXAS

O: 29JAN2025 12:03:34  32.9N  100.9W ML=2.2  EMSC   WESTERN TEXAS                

P: 24JAN2025 169223    35.0N   97.0W 2.0-4.3 BCCAA  Southern Plains            

 

NEIC reported an earthquake of M 3.1 in Western Texas was felt with moderate intensity up to II-III in the area(s) of Western Texas.

 

O: 29JAN2025 16:52:33  44.4N  114.7W ML=2.8  EMSC   SOUTHERN IDAHO               

P: 30JAN2025 169246    44.6N  116.0W 2.0-4.3 AAAAA  Montana/Idaho              

 

 

EASTERN U.S./CANADA

 

O: 28JAN2025 22:35:39  46.1N   79.8W MB=1.6  ECAN OF RESTOULE, ON                

P: 27JAN2025 169251    47.0N   76.0W 2.0-3.9 AACAA  New York State             

 

O: 30JAN2025 06:17:21  29.1N   97.9W ML=2.6  EMSC   SOUTHERN TEXAS

O: 30JAN2025 03:26:38  29.1N   97.8W ml=4.5  ANSS   Falls City Texas

O: 30JAN2025 03:26:39  29.1N   97.8W MW=4.5  EMSC   SOUTHERN TEXAS               

P: 15JAN2025 168897    28.0N   98.0W 3.0-4.6 DBAAA  Northern Mexico            

 

NEIC reported an earthquake of M 2.2 in Southern Texas was felt with moderate intensity up to II-III in the area(s) of Southern Texas near Falls City.

 

O: 29JAN2025 13:07:12  36.5N   98.7W ML=2.0  EMSC   OKLAHOMA                     

P: 31JAN2025 169223    36.0N   97.0W 2.0-4.4 AABAA  Southern Plains            

 

O: 29JAN2025 08:15:33  43.1N   70.6W ML=2.0  EMSC   MAINE                        

P: 26JAN2025 169244    44.0N   69.0W 2.0-4.3 BAAAA  Maine                      

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.