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-ANDRé-AVELLIN, QC
O: 11FEB2025 06:09:55 46.0N 75.0W MB=0.9 ECAN OF CHéNéVILLE, 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 POCATIèRE, 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 RIVIèRE-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 MESARIá 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 ACARí 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 MESARIá 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 OíA 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 OíA 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.