MODERATE QUAKE DEADLY IN NORTHERN PAPUA NEW GUINEA

 

EARTHQUAKE SUMMARY FOR MAY 24, 2024

 

 

A moderate quake of M 5.1 occurred in an unusual area of Papua New Guinea today. BMG  reported this earthquake of M 5.0 North of New Guinea  was felt with intensity up to III in the area(s) of  New Guinea in Kab. Raja Ampat at Waigeo, Kepulauan, Waigeo, Teluk Mayalibit, Meos Amsur, Warwarbomi, Kota Waisai, Tiplol Mayalibit, Supinin and Ayau. NEIC reported it was felt in Kavieng, Papua New Guinea. Local Press reported that it triggered massive landslides in the region due to unusually wet grounds following much rain associated with Tropical Cyclone Ewiniar (TD 01W). Press reports indicate that at least 670 people were killed in the landslides and earthquake. The epicenter was near Kaokalam Village about 500 km northwest of Port Moresby, PNG. Most of those affected were subsistence farmers living off private gardens with homes easily destroyed by landslides. Aid workers are in the area at this time.

 

This earthquake was probably promoted by the full moon of May 23 as it lies at the longitude of greatest tidal stress with that event and occurred near local solar midnight as noted in this and previous issues of this summary:

 

"The full moon will arrive at 13:53 UT on May 23, 2024.  Longitudes which are sub-solar at this time are near 30 West and 150 East. These include the central Atlantic in the west and Japan and much of the eastern Pacific Rim from Kamchatka to New Guinea in the east. These areas may see moderate seismic enhancement over the next seven days to enhanced tidal stresses but other tidally stressed areas may also see increased seismicity at this time." (May 20-24, 2024)

 

This summary had warned of the possible seismic affects in this region in

the previous summary as:

 

 

A recent series of moderately large earthquakes near the geomagnetic equator in Indonesia and New Britain/New Ireland/New Guinea raises concern about triggered earthquakes associated with the major geomagnetic storm of mid-May.

 

...

 

Seismicity in the area of Indonesia, New Guinea and Vanuatu is also expected to continue to be enhanced in the next week with a strong earthquake likely in this region." (May 22-24. 2024)

 

This is the largest earthquake in northern New Ireland within about 200 km  of this epicenter since an M 5.2 on March 9, 2018.

 

Forecast 163152 had expected this event in New Ireland was likely around May 22, 2024.

 

O: 24MAY2024 15:51:32   1.7S  151.8E MB=5.1  EMSC   NEW IRELAND REGION, P.N.G.   

P: 22MAY2024 163152     5.0S  151.0E 4.0-5.4 ACAAA  New Ireland                

 

An unusually large aftershock of M 2.9 was felt in New Jersey today. This appears to be the strongest aftershock to date of the M 3.8 in New Jersey of April 5, 2024. A similar M 2.8-2.9 occurred on April 27, 2024. NEIC reported it was felt with intensity up to IV in Gladstone. EMSC report a bang and a quick shake in New Jersey at Whitehouse Station, Glen Gardner, Long Valley, Lebanon, Hillsborough with an earthquake noise like a train passing. This earthquake appears to have been triggered by Solar Flare effects associated with M1.0 class solar flare (6120) which was first observed within a minute of the occurrence of this earthquake in New Jersey. SWPC data for this flare follows:

 

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

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

 

6120       0751   0801      0808   M1.0      (May 24, 2024)   8.1E-03  

New Jersey M 2.9 07:50  UT

 

Forecast 163289 had expected enhanced aftershock activity in this region was likely around May 27.

 

O: 24MAY2024 07:50:12  40.7N   74.7W ML=2.9  EMSC   NEW JERSEY                   

P: 27MAY2024 163289    41.0N   74.0W 2.0-4.1 BAAAA  New York State             

 

The strongest earthquake in the U.S. or Canada today was an M 4.5 in False Pass, Unimak Island where it was not reported felt. This continues recent activity in Unimak Island where the last such earthquake was an M 4.7 on May 23, 2024. At the time this summary noted:

 

 

"The strongest earthquakes in the U.S. or Canada today were of M 4.5 and 4.7 and occurred in the Unimak Island area near False Pass Alaska. They were not reported felt in this remote area. The last earthquake of equal or greater magnitude in the Unimak Island area was an M 4.8 on April 10, 2024. At the time this summary noted:

 

 

"Today's event in the Fox Islands occurred within minutes of local solar noon and was probably promoted by strong tidal stresses which maximize near this hour." (April 11, 2024)

 

Today's earthquake in the Unimak Island region occurred within minutes of local solar midnight and was probably promoted by strong tidal stresses associated with the full moon today as noted in this and previous issues of this summary:

(See above)

 

 

The strongest earthquake in the Unimak Island area in the past four years was an M 5.1 on September 9, 2021 and also on January 11, 2021." (May 23, 2024)

 

Today's Unimak earthquake appears to have been triggered by Solar Flare effects associated with M1.4 class solar flare (6100) which reached its maximum output  within minutes of the time of occurrence of this earthquake in Unimak Island. SWPC data for this flare follows:

 

 

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

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

 

6100       0628   0706      0721   M1.4      (May 24, 2024)   2.3E-03  

Unimak Island M 4.5 07:16  UT

 

Forecast 163313 and 163326 had expected today's activity in Alaska was likely within  about 100 km around May 26-27, 2024.

 

 

 

O: 24MAY2024 07:16:42  53.6N  163.5W MW=4.5  EMSC   UNIMAK ISLAND REGION, ALASKA 

P: 26MAY2024 163313    53.9N  165.3W 3.5-5.3 AAAAA  Fox Islands, Aleutians     

P: 27MAY2024 163326    54.2N  162.5W 3.5-4.9 BAAAA  Unimak Islands, Aleutians  

 

An earthquake of M 4.4 also occurred in the westernmost Aleutian Islands in  the Near Islands today. It was not reported felt in this remote area. The last earthquake in the Near Islands with M>=4.4 occurred on December 25, 2023 with M 4.7.

 

Forecast 163321 had expected today's event was likely within about 100 km  around May 25.

 

O: 24MAY2024 18:59:29  51.9N  173.6E MB=4.4  EMSC   NEAR ISLANDS, ALEUTIAN ISLANDS

P: 25MAY2024 163321    52.0N  175.0E 4.0-5.6 AAAAA  Rat Islands                

 

An unusual earthquake in the North Atlantic Ridge also appears to have been triggered today by a solar flare. This quake of M 4.4-4.5 occurred within  a minute of the initiation of solar flare 6240 at a time when this epicenter was at local solar noon - a time when SFE and Tidal effects maximize. Following is the SWPC data for this flare.

 

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

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

 

6240       1349   1358      1407   C3.4      (May 24, 2024)   7.0E-04  

Northern Mid-Atlantic M 4.4 13:50 UT

 

The last earthquake in the North Mid-Atlantic Ridge within about 200 km of this epicenter and with M>=4.4 occurred on July 31, 2022 with M 4.8 about 150 km north of today's epicenter.

 

Forecast 163317 had expected a moderate quake in this area was likely around

May 22. This epicenter is located at 103 degrees from the M 7.2 in Taiwan of

April 2, 2024 and may have been promoted by energy from that source.

 

 

O: 24MAY2024 13:50:36  48.2N   27.5W MB=4.4  EMSC   NORTHERN MID-ATLANTIC RIDGE  

O: 24MAY2024 13:50:36  48.2N   27.5W MB=4.5  ANSS   NORTHERN MID-ATLANTIC RIDGE  

P: 22MAY2024 163317    50.0N   29.0W 4.0-5.9 ABAAA  North Mid-Atlantic Ridge   

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: 25MAY2024 03:48:43  24.2N  121.7E ML=4.2  EMSC   TAIWAN

O: 24MAY2024 17:07:12  24.2N  121.7E MW=4.6  EMSC   TAIWAN                       

P: 25MAY2024 163208    24.0N  123.0E 4.0-5.4 AAAAA  Taiwan                     

 

EMSC reported this earthquake of M 4.0 in Taiwan was felt with intensity up to III in the area(s) of  Taiwan in Taipei City.

 

O: 24MAY2024 10:33:31  27.9N   57.8E ML=4.0  EMSC   SOUTHERN IRAN                

P: 23MAY2024 163206    28.0N   57.0E 3.5-5.2 AAAAA  So. Iran/Persian Gulf      

 

O: 24MAY2024 13:58:50  56.7N  117.3E MB=5.0  EMSC   CHITINSKAYA OBLAST', RUSSIA  

P: 22MAY2024 163324    57.0N  121.0E 3.0-4.6 AACAA  So. Siberia                

 

INDONESIA AND PHILIPPINES

 

O: 25MAY2024 05:55:51   0.8N  131.7E MB=4.8  EMSC   PAPUA REGION, INDONESIA      

P: 26MAY2024 163165     3.0S  130.0E 4.0-5.4 ACBAA  West Irian, PNG            

 

O: 25MAY2024 06:47:36   1.3N  126.5E ML=4.2  EMSC   MOLUCCA SEA                  

P: 29MAY2024 163137     1.0N  124.0E 4.0-5.4 BACAA  Mindanao, Philippines      

P: 30MAY2024 163135     2.0N  128.0E 4.0-5.4 BABAA  Halmahera                  

 

O: 24MAY2024 22:51:19   1.3S  135.1E MB=4.6  EMSC   BIAK REGION, INDONESIA       

P: 15MAY2024 162888     3.0S  134.0E 4.0-5.4 CBAAA  West Irian, PNG            

 

O: 24MAY2024 15:51:32   1.7S  151.8E MB=5.1  EMSC   NEW IRELAND REGION, P.N.G.   

P: 22MAY2024 163152     5.0S  151.0E 4.0-5.4 ACAAA  New Ireland                

 

O: 24MAY2024 19:12:05   1.9S  139.0E ML=4.0  EMSC   NEAR N COAST OF PAPUA, INDONESIA

O: 24MAY2024 19:21:29   1.9S  138.9E ML=4.2  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 25MAY2024 163156     2.0S  140.0E 4.0-5.4 AAAAA  Papua New Guinea           

P: 26MAY2024 163166     3.0S  138.0E 4.0-5.4 ABAAA  West Irian, PNG            

 

O: 25MAY2024 02:20:08   2.4N  126.7E MB=4.8  EMSC   MOLUCCA SEA                  

P: 30MAY2024 163135     2.0N  128.0E 4.0-5.4 BABAA  Halmahera                  

 

O: 25MAY2024 00:10:13   3.7N   94.9E MB=4.9  EMSC   OFF W COAST OF NORTHERN SUMATR

P: 29MAY2024 163140     5.0N   96.0E 4.0-5.6 BBAAA  Nicobar Islands            

 

BMG  reported this earthquake of M 5.0 in Sumatra, Indonesia was felt with intensity up to I in the area(s) of  Sumatra, Indonesia in Kab Aceh, Pidie, Simeulue, Aceh Jaya, Gagna Raya, Asahan.

 

O: 25MAY2024 04:33:09   5.7S  154.3E MW=4.9  EMSC   BOUGAINVILLE REGION, P.N.G.  

P: 27MAY2024 163150     7.0S  154.0E 4.0-5.4 ABAAA  New Britain                

 

 

PHIVOLCS reported an earthquake of M 4.4 in Central Philippines was felt with intensity up to II in the area(s) of  Central Philippines in the city of Legazpi, Albay and I in Irosin, Sorsogon; Calveria, Masbate.

 

CENTRAL AND SOUTH AMERICA

 

O: 24MAY2024 09:58:50   9.8S   74.6W MB=4.9  EMSC   CENTRAL PERU                 

P: 22MAY2024 163340    10.0S   75.0W 3.5-5.0 AAAAA  Brazil                      

 

O: 24MAY2024 15:55:03  14.3N   92.6W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 23MAY2024 163175    16.0N   92.0W 3.5-5.3 ABAAA  Guatemala                  

 

O: 25MAY2024 04:03:16  15.5N   96.4W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 24MAY2024 21:02:01  16.0N   96.6W ML=4.0  EMSC   OAXACA, MEXICO

O: 25MAY2024 01:27:17  16.0N   96.4W ML=4.5  EMSC   OAXACA, MEXICO

O: 25MAY2024 06:52:29  16.2N   94.8W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 24MAY2024 17:41:13  15.4N   95.7W ML=4.1  EMSC   OFFSHORE OAXACA, MEXICO      

P: 24MAY2024 163188    15.0N   96.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

EMSC reported this earthquake of M 4.0 in Oaxaca, Mexico was felt with intensity up to III in the area(s) of  Oaxaca, Mexico in Santa Maria Huatulco as a slight quick rattle.

It was followed by an M 4.5 felt with slight shaking in San Agustin, Mexico.

 

O: 25MAY2024 01:34:57  17.4N   94.8W ML=4.1  EMSC   VERACRUZ, MEXICO             

P: 28MAY2024 163171    17.0N   95.0W 3.5-5.3 BAAAA  Chiapas, Mexico            

 

O: 25MAY2024 01:05:45  18.6N   66.8W MD=3.0  EMSC   PUERTO RICO REGION

O: 24MAY2024 09:02:04  19.1N   67.1W MD=3.7  EMSC   PUERTO RICO REGION

O: 24MAY2024 10:08:08  19.1N   67.3W MD=3.4  EMSC   PUERTO RICO REGION           

P: 22MAY2024 163190    19.0N   67.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 24MAY2024 17:23:03  18.4N   68.9W MD=3.6  EMSC   DOMINICAN REPUBLIC REGION

O: 24MAY2024 22:31:27  18.9N   70.3W ML=3.1  EMSC   DOMINICAN REPUBLIC

O: 25MAY2024 05:17:54  19.0N   69.5W ML=3.4  EMSC   DOMINICAN REPUBLIC

O: 25MAY2024 06:53:53  19.0N   68.1W MD=3.5  EMSC   DOMINICAN REPUBLIC REGION

O: 25MAY2024 02:46:19  19.1N   69.5W ML=3.2  EMSC   DOMINICAN REPUBLIC

O: 25MAY2024 04:51:01  19.1N   69.5W ML=3.3  EMSC   DOMINICAN REPUBLIC

O: 25MAY2024 04:44:18  19.3N   69.5W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

O: 25MAY2024 00:13:31  19.5N   70.2W ML=3.0  EMSC   DOMINICAN REPUBLIC           

P: 28MAY2024 163190    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                 

 

O: 24MAY2024 07:41:35  24.7N  109.2W ML=3.8  EMSC   GULF OF CALIFORNIA           

P: 19MAY2024 162925    25.0N  113.0W 3.5-4.9 BACAA  Gulf of California         

 

 

AFRICA AND EUROPE

 

O: 24MAY2024 14:54:26   5.8S   27.1E MB=4.7  EMSC   DEMOCRATIC REPUBLIC OF THE CON

P: 27MAY2024 163149     2.0S   29.0E 3.0-4.8 BCBAA  Lake Victoria area         

 

O: 24MAY2024 12:21:03  26.5S   27.3E ML=3.1  EMSC   SOUTH AFRICA

O: 25MAY2024 03:59:50  29.8S   26.9E ML=3.7  EMSC   SOUTH AFRICA                 

P: 18MAY2024 163098    27.0S   27.0E 3.0-4.9 CAAAA  Rep. South Africa          

 

O: 24MAY2024 17:35:26  39.4N   17.0E ML=4.0  EMSC   SOUTHERN ITALY               

P: 23MAY2024 163280    41.0N   16.0E 3.0-4.9 ABAAA  Italy                      

 

EMSC reported this earthquake of M 4.0 in Southern Italy was felt with intensity up to III in the area(s) of  Southern Italy in Taranto.

 

SOUTHWEST PACIFIC

 

O: 25MAY2024 05:43:31  18.0S  178.3W MB=4.3  EMSC   FIJI REGION                  

P: 19MAY2024 163089    17.0S  178.0W 4.0-5.6 CAAAA  Tonga Islands              

 

O: 25MAY2024 06:56:38  20.9S  178.5W MB=4.4  EMSC   FIJI REGION                  

P: 28MAY2024 163362    22.0S  179.0W 4.0-5.8 BBAAA  Tonga Islands              

 

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

 

OCEAN RIDGES

 

O: 25MAY2024 02:49:43  30.1N   42.7W MW=5.0  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 28MAY2024 163199    29.0N   43.0W 4.0-6.0 ABAAA  Mid-Atlantic Ridge         

 

O: 24MAY2024 13:50:36  48.2N   27.5W MB=4.4  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 22MAY2024 163317    50.0N   29.0W 4.0-5.9 ABAAA  North Mid-Atlantic Ridge   

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 25MAY2024 04:30:53  31.2S  179.8E ML=4.5  EMSC   KERMADEC ISLANDS REGION       

 

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: 25MAY2024 05:46:50  30.9N  115.1W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO      

P: 25MAY2024 163247    30.6N  114.6W 2.0-4.3 AAAAA  SW U.S.A                   

 

O: 24MAY2024 13:43:13  33.0N  118.4W ML=2.7  EMSC   GULF OF SANTA CATALINA, CALIF.

P: 24MAY2024 163253    33.6N  118.5W 2.5-4.6 AAAAA  So. California             

P: 27MAY2024 163252    32.8N  118.3W 2.5-4.4 BAAAA  So. California             

 

O: 24MAY2024 09:33:51  33.2N  116.0W ML=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 27MAY2024 163251    32.5N  115.7W 2.5-4.6 BAAAA  So. California             

 

O: 24MAY2024 11:37:03  35.4N  118.3W ML=2.1  EMSC   CENTRAL CALIFORNIA           

P: 24MAY2024 163259    35.5N  117.4W 2.5-4.5 AAAAA  So. California             

 

O: 24MAY2024 11:29:40  37.4N  120.0W MD=2.8  EMSC   CENTRAL CALIFORNIA           

P: 23MAY2024 163221    37.8N  121.9W 2.5-4.5 AABAA  Central California         

 

NEIC reported this earthquake of M 2.8 in Central California was felt with intensity up to IV in the area(s) of  Central California in Mariposa.

 

O: 25MAY2024 04:15:37  38.8N  122.9W MD=2.1  EMSC   NORTHERN CALIFORNIA           

P: 26MAY2024 163222    38.7N  122.7W 2.5-4.7 AAAAA  Central California         

 

O: 25MAY2024 00:06:00  39.5N  119.4W ML=2.1  EMSC   NEVADA                       

P: 23MAY2024 163217    39.1N  119.6W 2.5-4.9 AAAAA  California/Nevada area     

P: 26MAY2024 163218    39.3N  120.0W 2.5-4.8 AAAAA  California/Nevada area     

 

ALASKA

 

O: 24MAY2024 18:59:29  51.9N  173.6E MB=4.4  EMSC   NEAR ISLANDS, ALEUTIAN ISLANDS

P: 25MAY2024 163321    52.0N  175.0E 4.0-5.6 AAAAA  Rat Islands                

 

O: 24MAY2024 23:23:23  52.3N  170.3W ML=3.2  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 24MAY2024 163313    52.5N  169.2W 3.5-4.9 AAAAA  Fox Islands, Aleutians     

 

O: 24MAY2024 07:16:42  53.6N  163.5W MW=4.5  EMSC   UNIMAK ISLAND REGION, ALASKA 

P: 26MAY2024 163313    53.9N  165.3W 3.5-5.3 AAAAA  Fox Islands, Aleutians     

P: 27MAY2024 163326    54.2N  162.5W 3.5-4.9 BAAAA  Unimak Islands, Aleutians  

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 24MAY2024 10:44:40  42.1N  124.4W ML=2.0  EMSC   OFFSHORE OREGON              

P: 26MAY2024 163292    40.3N  124.7W 2.5-4.8 ABAAA  Off Coast of No. Calif     

 

ROCKY MOUNTAINS REGION

 

O: 24MAY2024 17:06:02  31.7N  104.2W ML=2.1  EMSC   WESTERN TEXAS

O: 24MAY2024 10:55:02  31.6N  104.6W ML=2.1  EMSC   WESTERN TEXAS                

P: 25MAY2024 163246    32.6N  104.6W 2.0-4.3 AAAAA  SW U.S.A                   

 

O: 24MAY2024 18:23:35  44.3N  114.9W ML=2.4  EMSC   SOUTHERN IDAHO               

P: 22MAY2024 163285    44.4N  114.1W 2.0-4.1 AAAAA  Montana/Idaho               

 

O: 24MAY2024 08:56:12  37.8N  112.9W ML=2.7  EMSC   UTAH                         

P: 16MAY2024 162998    37.0N  111.8W 2.0-3.9 CAAAA  Utah area                  

 

NEIC reported this earthquake of M 2.7 in Utah was felt with intensity up to IV in the area(s) of  Utah in Summit.

 

EASTERN U.S./CANADA

 

O: 25MAY2024 05:20:04  36.2N   83.6W MD=2.4  EMSC   EASTERN TENNESSEE            

P: 20MAY2024 162956    36.0N   83.0W 2.0-4.1 BAAAA  Kentucky/Tennessee/NC      

P: 28MAY2024 163231    35.9N   82.8W 2.0-4.4 BAAAA  Kentucky/Tennessee/NC      

 

O: 24MAY2024 07:50:12  40.7N   74.7W ML=2.9  EMSC   NEW JERSEY                   

P: 27MAY2024 163289    41.0N   74.0W 2.0-4.1 BAAAA  New York State             

 

HAWAII

 

O: 24MAY2024 20:44:34  19.4N  155.1W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24MAY2024 163197    19.3N  155.1W 4.0-5.5 AAAAA  Hawaii area                

 

 

EFFECTS OF GEOMAGNETIC STORMS; X-CLASS SOLAR FLARES LINGER

 

EARTHQUAKE SUMMARY FOR MAY 23, 2024

 

The strongest earthquakes in the world today occurred in the Indian Ocean and were not reported felt in these remote area. They included an M 5.5 in the Carlsberg Ridge and an M 5.6 in the Southwest Indian Ridge. Earthquakes of M 4.7 and 4.6 respectively occurred in the mid-Indian Ridge and in the Southeast Indian Ridge. The event in the mid-Indian Ridge may have been promoted by effects from Tropical Cyclone Ialy which passed near this epicenter in mid-May

as reported in this summary at the time:

 

"TC Ialy formed today in the region north of Madagascar with winds up to 50 kts. It is expected to track to the south over the next several days but not to increase much in strength. Seismicity in the region of east Africa and Mayotte may be enhanced while TC Ialy is in the vicinity." (May 15, 2024)

 

Forecast 163084 had expected regional seismic enhancement with this storm in mid-May.

 

O: 23MAY2024 16:34:45  11.5S   66.2E MB=4.7  EMSC   MID-INDIAN RIDGE             

P: 13MAY2024 163084    14.0S   66.0E 4.0-5.4 CCAAA  So. Indian Ocean           

 

An earthquake of M 6.2 hit near today's epicenter in the Southeast Indian Ridge on February 4, 2022. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.2-6.3 in the South Indian Ocean. It was not reported felt in this remote oceanic region.

 

"The New Moon arrived at 05:46 UT on February 1, 2022. Longitudes near 87 West and 93 East were at solar midnight and solar noon ...

 

...

 

Today's event is the strongest within about 300 km of this epicenter since an M 6.5 on October 29, 2005. An M 6.2 also occurred near today's epicenter on February 5, 2010 exactly 12 years ago." (February 4, 2022)

 

It is of some interest that this epicenter is nearly antipodal to a series of light earthquakes in Ontario, Canada on May 22. The antipodal relation in this case is not well understood and may be random.

 

O: 22MAY2024 01:50:15  45.8N   81.7W MB=2.4  ECAN OF WIKWEMIKONG, ON             

O: 22MAY2024 01:49:39  45.8N   81.6W MB=1.9  ECAN OF WIKWEMIKONG, ON   

P: 27MAY2024 163295    41.8N   81.4W 2.0-4.4 BCAAA  Ohio/Lake Erie             

 

Forecast 163374 had expected enhanced seismicity in this area was likely around

May 27.

 

O: 24MAY2024 01:11:25  48.2S   99.1E MB=4.6  EMSC   SOUTHEAST INDIAN RIDGE       

P: 27MAY2024 163374    45.0S   97.0E 4.0-5.6 BCBAA  So. Indian Ocean           

 

The earthquake of M 5.5 in the Carlsberg Ridge is the strongest within about 200 km in that area since an M 5.8 on December 2, 2014 more than 10 years ago. At the time this summary noted:

 

"A series of moderate to strong earthquakes occurred within 26 minutes early on December 2. The largest of these was an M 6.4-6.6 south of Mindanao, Philippines.

 

...

 

The earthquake in Mindanao was preceded by an M 5.9-6.0 quake in the continuing series in the Carlsberg Ridge, Indian Ocean about 18 minutes earlier. As this is the approximate time it takes for an S-wave to move from the Carlsberg Ridge to the epicenter in the Philippines (60-61 degrees, node 6), it is likely that the event in the Philippines was dynamically triggered by this wave from the Carlsberg Ridge." (December 2, 2014)

 

...

 

The earthquake in the Carlsberg Ridge which appears to have started this sequence of unusual seismicity was part of the ongoing seismic enhancement of the area which began last week. This is occurring at an unusual epicenter and the M 5.8-6.0 is the largest event within 300 km of this epicenter in at least 25 years." (December 2, 2014)

 

An M 5.0 hit near this epicenter on January 21, 2024 a day before the M 7.1 in Xinjiang, China.

 

O: 23MAY2024 10:50:00   5.4N   61.6E MW=5.5  EMSC   CARLSBERG RIDGE              

 

The strongest earthquake in the world today occurred in the Southwest Indian Ridge with M 5.6. This is the largest earthquake recorded by NEIC in this region within about 250 km of today's epicenter since an M 6.0 about 250 km southeast of today's epicenter on September 18, 2018 - the only other such event of M>=5.6 in the region in the past 35 years. At that time this summary noted:

 

"The strongest earthquake in the world today was an M 6.0 in the Southwest Indian Ridge. It was not felt in this remote area. The last earthquake of M>=6 within about  400 km of this epicenter occurred on January 11, 2004 with M 6.2 about 300 km east of today's event and was the only such event in the area in at least 30 years

 

The antipode of this epicenter is located at 37.8N 130W far off the coast of

San Francisco, California. Some antipodal triggering in that area is possible but not likely at moderate magnitude levels." (September 18, 2018)

 

Forecast 163374 had expected enhanced seismicity in this area of the  Southwest Indian Ridge was likely around May 27 to the southwest of today's epicenter.

 

O: 23MAY2024 11:27:03  37.3S   47.7E MW=5.6  EMSC   SOUTHWEST INDIAN RIDGE       

P: 27MAY2024 163374    41.0S   43.0E 4.0-5.8 BCCAA  So. Indian Ocean           

 

 

A recent series of moderately large earthquakes near the geomagnetic equator in Indonesia and New Britain/New Ireland/New Guinea raises concern about triggered earthquakes associated with the major geomagnetic storm of mid-May. The area of central Peru has been surprisingly quiet during this period. It lies near the geomagnetic equator, and like Indonesia, can be triggered by strong geomagnetic storms. It is possible that this area could see a strong to major earthquake in the next week. If this should occur, it is most likely off the coast near 15S-17S 70W-80W on the subduction zone boundary. An unusual earthquake west of North Island, New Zealand could be a precursor to such an event.  Seismicity in the area of  Indonesia, New Guinea and Vanuatu is also expected to continue to be enhanced in the next week with a strong earthquake likely in this region.

 

Sub-solar latitudes at this time lie near 18-19 North latitude. This zone could also see enhanced seismicity at this time. Active area at this latitude include Taiwan and northern Philippines, Mariana Islands, Hawaii, western Mexico, and the northern Caribbean including Puerto Rico, Haiti and the Dominican Republic. Watch for stronger than normal seismicity in these areas during the coming week.

 

The strongest earthquakes in the U.S. or Canada today were of M 4.5 and 4.7 and occurred in the Unimak Island area near False Pass Alaska. They were not reported felt in this remote area. The last earthquake of equal or greater magnitude in the Unimak Island area was an M 4.8 on April 10, 2024. At the time this summary noted:

 

 

"Today's event in the Fox Islands occurred within minutes of local solar noon and was probably promoted by strong tidal stresses which maximize near this hour." (April 11, 2024)

 

Today's earthquake in the Unimak Island region occurred within minutes of local solar midnight and was probably promoted by strong tidal stresses associated with the full moon today as noted in this and previous issues of this summary:

 

"The full moon will arrive at 13:53 UT on May 23, 2024.  Longitudes which are sub-solar at this time are near 30 West and 150 East. These include the central Atlantic in the west and Japan and much of the eastern Pacific Rim from Kamchatka to New Guinea in the east. These areas may see moderate seismic enhancement over the next seven days to enhanced tidal stresses but other tidally stressed areas may also see increased seismicity at this time." (May 20-24, 2024)

 

The strongest earthquake in the Unimak Island area in the past four years was an M 5.1 on September 9, 2021 and also on January 11, 2021.

 

Forecast 163313 had expected today's activity in Alaska was likely within about 100 km around May 26, 2024.

 

O: 24MAY2024 07:16:43  53.6N  163.6W mw=4.5  ANSS   False Pass Alaska

O: 23MAY2024 10:38:24  53.2N  164.6W MB=4.7  EMSC   UNIMAK ISLAND REGION, ALASKA 

P: 26MAY2024 163313    53.9N  165.3W 3.5-5.3 BAAAA  Fox Islands, Aleutians     

 

An unusual earthquake of M 4.0 also occurred today in the northern Yukon and Northwest Territories of Canada. It was not reported felt in this remote area and was followed by an aftershock 10 minutes later of M 3.0. This is the strongest earthquake within about 150 km of this epicenter since an M 4.2 on October 16, 2015 but the last of significantly larger magnitude in the region was an M 4.8-4.9 on December 11, 2012. At the time this summary noted:

 

 

"On the other side of the IDL, an M 4.2 hit in the region of Fort McPherson, Canada today. It was not reported damaging or felt in this remote epicentral area of western Canada.

...

 The last earthquake of M>=4.2 in this area occurred on December 11, 2012 with M 4.9." (October 16, 2015)

 

Forecast 163336 had expected today's activity was likely within about 150 km  of these epicenters around May 25.

 

O: 23MAY2024 19:14:11  68.2N  136.4W MB=3.0  ECAN OF AKLAVIK, NT   

O: 23MAY2024 19:04:45  68.1N  136.4W MB=4.0  ECAN OF AKLAVIK, NT   

O: 23MAY2024 19:04:45  68.1N  136.4W ML=4.0  EMSC   NORTHERN YUKON TERRITORY, CANA

P: 25MAY2024 163336    66.9N  135.8W 3.0-4.6 ABAAA  Northern Alaska            

 

An earthquake of M 2.5 shook the San Francisco Bay area of California today. NEIC reported this earthquake of M 2.5 in Central California was felt with intensity up to III in the area(s) of  Central California in Antioch.  It coincided with the maximum output of solar flare 5940 - a C6.5 flare and occurred within minutes of local solar noon. This reminds that this area is sensitive to solar flares and may be near a larger regional event. Following is the data from SWPC for this flare:

 

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

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

 

5940       2027   2034      2042   C6.5      (May 23, 2024)   4.2E-03  

 

Forecast 163221 had expected this event in San Francisco was likely within

about 25 km around May 23.

 

O: 23MAY2024 20:36:31  38.0N  121.8W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 23MAY2024 20:36:31  38.0N  121.8W md=2.5  ANSS   SW of Antioch CA

P: 23MAY2024 163221    37.8N  121.9W 2.5-4.5 AAAAA  Central California          

 

An earthquake of M 3.4 followed the San Francisco Bay event five minutes later

off the coast of Baja, California. This area showed significant seismic activity following an M 6.2 on November 22, 2022. It has been relatively quiet in the past year - since an M 4.5 on May 14, 2023 - last reported of M>=3.4 by NEIC. Many events in this area have been reported by EMSC in the meantime but have not been reported by NEIC. This suggests NEIC has data about these events that is not in possession by EMSC. Most of this swarm has occurred about 50 km north of today's epicenter. The last event nearer than 60 km to today's epicenter with M>=3.4 was an M 3.8 on September 4, 2002.

 

Forecast 163249 had expected enhanced regional seismicity was likely in this area around May 25.

 

O: 23MAY2024 20:41:25  30.2N  116.0W ML=3.4  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P: 25MAY2024 163249    31.9N  116.3W 2.5-4.7 ABAAA  So. California             

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: 23MAY2024 19:29:57  24.0N  121.6E ML=4.0  EMSC   TAIWAN

O: 23MAY2024 13:59:28  23.9N  121.3E mb=4.2  EMSC   TAIWAN

O: 24MAY2024 03:10:04  24.3N  122.1E MB=4.2  EMSC   TAIWAN REGION                

P: 25MAY2024 163208    24.0N  123.0E 4.0-5.4 AAAAA  Taiwan                     

 

O: 23MAY2024 17:38:25  41.7N   82.6E mb=4.4  EMSC   SOUTHERN XINJIANG, CHINA

O: 23MAY2024 20:17:49  41.7N   82.6E mb=4.1  EMSC   SOUTHERN XINJIANG, CHINA

O: 23MAY2024 14:30:12  41.8N   82.5E mb=4.8  EMSC   SOUTHERN XINJIANG, CHINA

O: 23MAY2024 15:38:45  41.8N   82.4E mb=4.4  EMSC   SOUTHERN XINJIANG, CHINA

O: 23MAY2024 16:05:58  41.8N   82.5E mb=4.4  EMSC   SOUTHERN XINJIANG, CHINA

O: 23MAY2024 16:11:14  41.7N   82.7E MB=4.3  EMSC   SOUTHERN XINJIANG, CHINA     

P: 14MAY2024 163015    42.0N   82.0E 4.0-5.4 CAAAA  Kirgizstan/Xinjiang        

 

EMSC reported this earthquake of M 4.8 in Southern Xinjiang, China was felt with intensity up to III in the area(s) of  Southern Xinjiang, China in Kyrgyzstan at Talgar, Almaty, and Kaskelen, Kazakhstan. 

 

O: 23MAY2024 17:07:32  27.2N   53.8E MB=5.0  EMSC   SOUTHERN IRAN                

P: 28MAY2024 163206    28.0N   52.0E 3.5-5.0 BABAA  So. Iran/Persian Gulf      

 

NEIC reported this earthquake of M 5.0 in Southern Iran was felt with intensity up to VII in the area(s) of  Southern Iran in Gerash.

EMSC reported it was strongly felt in Iran.

 

O: 24MAY2024 06:05:23  37.1N   71.5E MB=4.2  EMSC   TAJIKISTAN                   

P: 24MAY2024 163228    37.0N   72.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O: 23MAY2024 09:05:22  52.0N  159.4E MB=3.8  EMSC   OFF EAST COAST OF KAMCHATKA  

P: 23MAY2024 163314    53.0N  159.0E 4.0-5.7 AAAAA  Kamchatka                  

 

INDONESIA AND PHILIPPINES

 

O: 23MAY2024 20:17:51   4.3S  101.5E ML=4.0  EMSC   SOUTHERN SUMATRA, INDONESIA

O: 23MAY2024 23:25:12   3.9S  101.7E MB=4.5  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 23MAY2024 163160     4.0S  102.0E 4.0-5.4 AAAAA  So. of Sumatera            

 

O: 24MAY2024 04:02:43   6.0S  150.5E MB=4.5  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 22MAY2024 163152     5.0S  151.0E 4.0-5.4 AAAAA  New Ireland                

 

CENTRAL AND SOUTH AMERICA

 

O: 24MAY2024 05:13:50   6.2N   82.6W MW=5.1  EMSC   SOUTH OF PANAMA              

P: 28MAY2024 163133     8.0N   82.0W 3.5-5.1 BBAAA  Costa Rica                 

 

O: 23MAY2024 08:46:27   0.7N   83.6W ML=3.9  EMSC   OFF COAST OF ECUADOR         

P: 21MAY2024 163141     2.0N   85.0W 4.0-5.4 ABBAA  So. of Panama              

 

O: 23MAY2024 08:15:16  13.2N   87.7W MB=4.6  EMSC   GOLFO DE FONSECA, EL SALVADOR

O: 23MAY2024 08:15:16  13.2N   87.7W mb=4.6  ANSS   SSW of Amapala Honduras

P: 25MAY2024 163185    13.0N   87.0W 3.5-5.4 AAAAA  Nicaragua                  

 

O: 23MAY2024 20:10:09  14.3N   92.1W ML=4.1  EMSC   OFFSHORE GUATEMALA           

P: 21MAY2024 163170    14.0N   93.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 24MAY2024 05:28:32  14.9S   74.7W ML=4.0  EMSC   CENTRAL PERU                 

P: 29MAY2024 163340    14.0S   73.0W 4.0-5.8 BABAA  Central Peru               

 

O: 23MAY2024 11:24:21  15.3N   95.6W ML=4.3  EMSC   OFFSHORE OAXACA, MEXICO      

P: 24MAY2024 163188    15.0N   96.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 23MAY2024 13:17:11  18.0N   66.8W MD=3.0  EMSC   PUERTO RICO                  

P: 22MAY2024 163190    19.0N   67.0W 3.4-5.2 AAAAA  Puerto Rico                 

 

O: 23MAY2024 18:42:57  18.6N  101.9W ML=4.3  EMSC   MICHOACAN, MEXICO            

P: 23MAY2024 163182    19.0N  102.0W 3.5-5.4 AAAAA  Michoacan, Mexico          

 

O: 23MAY2024 09:13:36  18.7N  103.9W ML=3.7  EMSC   OFFSHORE COLIMA, MEXICO

O: 23MAY2024 09:23:20  18.7N  103.9W ML=3.6  EMSC   OFFSHORE COLIMA, MEXICO      

P: 19MAY2024 162907    18.0N  104.0W 3.5-5.1 BAAAA  Michoacan, Mexico          

 

O: 24MAY2024 01:51:31  18.8N   69.5W ML=3.1  EMSC   DOMINICAN REPUBLIC           

P: 28MAY2024 163190    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 24MAY2024 05:43:10  18.8N   67.1W MD=3.2  EMSC   PUERTO RICO REGION

O: 24MAY2024 04:00:48  19.0N   68.7W MD=3.8  EMSC   DOMINICAN REPUBLIC REGION

O: 24MAY2024 04:09:15  19.3N   69.2W ML=3.6  EMSC   DOMINICAN REPUBLIC REGION

O: 24MAY2024 05:11:57  19.0N   67.1W MD=3.8  EMSC   PUERTO RICO REGION           

P: 22MAY2024 163190    19.0N   67.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 24MAY2024 02:44:18  19.3N   64.3W MD=3.6  EMSC   VIRGIN ISLANDS REGION

O: 23MAY2024 16:57:57  19.5N   64.8W MD=3.7  EMSC   VIRGIN ISLANDS REGION        

P: 24MAY2024 163178    19.0N   64.0W 3.0-5.2 AAAAA  Leeward Islands            

 

O: 23MAY2024 17:09:20  24.2S   67.1W MB=4.4  EMSC   SALTA, ARGENTINA             

P: 23MAY2024 163356    24.0S   69.0W 4.0-5.6 AABAA  Coast No. Chile            

P: 29MAY2024 163354    24.0S   67.0W 4.0-5.7 CAAAA  Argentina                  

 

AFRICA AND EUROPE

 

O: 23MAY2024 21:26:05  35.7N   25.6E ML=3.9  EMSC   CRETE, GREECE                

P: 22MAY2024 163210    35.0N   25.0E 3.0-4.5 AAAAA  Aegean Sea                 

 

O: 23MAY2024 14:57:40  40.7N   35.3E MB=4.4  EMSC   CENTRAL TURKEY               

P: 22MAY2024 163290    41.0N   36.0E 3.5-5.1 AAAAA  No. Turkey/Black Sea       

 

NEIC reported this earthquake of M 4.2 in Central Turkey was felt with intensity up to IV in the area(s) of  Central Turkey in Merzifon.

EMSC reported strong shaking in Turkey at Saray, Sofular, Karakecili, Gulabibey, Seyhcui, Celal, Yesilirmak, Kavacik, Cumhuriyet, Pazar, Fevzicakmak, Samsun, Ondokuz Mayis, Sanayi, Kuzeykent Fatih, Ildem Cumhuriyet, Ziyagokalp amon others.

 

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

 

SOUTHWEST PACIFIC

 

O: 24MAY2024 05:25:51  24.4S  176.7W MB=4.6  EMSC   SOUTH OF FIJI ISLANDS        

P: 14MAY2024 163104    24.0S  176.0W 4.0-5.4 CAAAA  Tonga Islands              

 

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

 

OCEAN RIDGES

 

 

O: 23MAY2024 10:50:00   5.4N   61.6E MW=5.5  EMSC   CARLSBERG RIDGE              

 

O: 23MAY2024 16:34:45  11.5S   66.2E MB=4.7  EMSC   MID-INDIAN RIDGE             

P: 13MAY2024 163084    14.0S   66.0E 4.0-5.4 CCAAA  So. Indian Ocean           

 

O: 23MAY2024 11:27:03  37.3S   47.7E MW=5.6  EMSC   SOUTHWEST INDIAN RIDGE       

P: 27MAY2024 163374    41.0S   43.0E 4.0-5.8 BCCAA  So. Indian Ocean           

 

O: 24MAY2024 01:11:25  48.2S   99.1E MB=4.6  EMSC   SOUTHEAST INDIAN RIDGE       

P: 27MAY2024 163374    45.0S   97.0E 4.0-5.6 BCBAA  So. Indian Ocean           

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today.

 

JAPAN AND KURIL ISLANDS

 

O: 24MAY2024 06:19:26  23.2N  143.8E MB=4.9  EMSC   VOLCANO ISLANDS, JAPAN REGION

P: 23MAY2024 163209    23.0N  144.0E 4.0-5.5 AAAAA  Volcano Islands            

 

O: 23MAY2024 10:59:58  43.1N  145.5E MB=4.7  EMSC   HOKKAIDO, JAPAN REGION       

P: 23MAY2024 163279    41.0N  144.0E 3.5-5.4 ACAAA  Hokkaido, Japan            

 

O: 24MAY2024 03:55:07  45.5N  146.8E MB=3.9  EMSC   KURIL ISLANDS                

P: 22MAY2024 163299    45.0N  148.0E 3.5-5.4 AAAAA  So. Kurils                 

 

O: 23MAY2024 16:49:13  46.1N  154.1E MB=4.2  EMSC   EAST OF KURIL ISLANDS        

P: 25MAY2024 163299    47.0N  153.0E 3.5-5.6 AAAAA  So. Kurils                 

 

O: 23MAY2024 21:43:41  47.1N  150.8E MB=4.2  EMSC   KURIL ISLANDS                

P: 25MAY2024 163299    47.0N  153.0E 3.5-5.6 AABAA  So. Kurils                  

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 23MAY2024 20:41:25  30.2N  116.0W ML=3.4  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P: 25MAY2024 163249    31.9N  116.3W 2.5-4.7 ABAAA  So. California             

 

O: 23MAY2024 08:13:55  31.4N  115.3W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO      

P: 25MAY2024 163249    31.9N  116.3W 2.5-4.7 AAAAA  So. California             

 

O: 23MAY2024 19:34:25  35.9N  115.2W ML=2.1  EMSC   NEVADA                       

P: 24MAY2024 163215    37.3N  114.9W 2.5-4.5 ABAAA  Nevada area                

 

O: 24MAY2024 03:44:31  36.2N  118.1W ML=2.3  EMSC   CENTRAL CALIFORNIA           

P: 25MAY2024 163212    36.3N  118.1W 2.5-4.5 AAAAA  California/Nevada area     

 

O: 23MAY2024 13:08:17  36.2N  120.8W MD=2.8  EMSC   CENTRAL CALIFORNIA

O: 23MAY2024 22:06:20  36.5N  121.1W MD=2.5  EMSC   CENTRAL CALIFORNIA           

P: 23MAY2024 163219    36.4N  121.0W 2.5-4.6 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.9 in Central California was felt with intensity up to III in the area(s) of  Central California in San Lucas.

 

O: 23MAY2024 20:36:31  38.0N  121.8W MD=2.5  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 23MAY2024 20:36:31  38.0N  121.8W md=2.5  ANSS   SW of Antioch CA

P: 23MAY2024 163221    37.8N  121.9W 2.5-4.5 AAAAA  Central California         

 

O: 23MAY2024 21:12:03  38.8N  122.8W MD=2.0  EMSC   NORTHERN CALIFORNIA

O: 24MAY2024 01:14:37  38.8N  122.8W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P: 26MAY2024 163222    38.7N  122.7W 2.5-4.7 AAAAA  Central California         

 

O: 23MAY2024 19:40:43  40.1N  119.7W ML=2.3  EMSC   NEVADA                       

O: 23MAY2024 19:41:58  40.1N  119.7W ML=2.1  EMSC   NEVADA

P: 22MAY2024 163218    39.4N  120.5W 2.5-4.6 AAAAA  Central California         

 

 

ALASKA

 

O: 24MAY2024 07:16:43  53.6N  163.6W mw=4.5  ANSS   False Pass Alaska

O: 23MAY2024 10:38:24  53.2N  164.6W MB=4.7  EMSC   UNIMAK ISLAND REGION, ALASKA 

P: 26MAY2024 163313    53.9N  165.3W 3.5-5.3 BAAAA  Fox Islands, Aleutians      

 

O: 23MAY2024 17:36:00  61.9N  147.8W ML=3.4  EMSC   SOUTHERN ALASKA              

P: 18MAY2024 163069    61.3N  147.2W 3.2-5.1 BAAAA  Central Alaska             

P: 24MAY2024 163332    60.2N  147.1W 3.2-5.1 ABAAA  Central Alaska             

 

NEIC reported this earthquake of M 3.4 in Southern Alaska was felt with intensity up to III in the area(s) of  Southern Alaska in Glacier View.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 24MAY2024 02:03:35  46.2N  123.4W ML=2.0  EMSC   OREGON                        

P: 16MAY2024 163042    48.0N  123.0W 2.0-4.3 CBAAA  Washington state, U.S.     

 

O: 23MAY2024 17:50:23  46.9N  121.9W ML=2.3  EMSC   WASHINGTON                   

P: 25MAY2024 163304    48.9N  122.1W 2.0-4.2 ABAAA  Washington state, U.S.     

 

O: 23MAY2024 19:14:11  68.2N  136.4W MB=3.0  ECAN OF AKLAVIK, NT   

O: 23MAY2024 19:04:45  68.1N  136.4W MB=4.0  ECAN OF AKLAVIK, NT   

O: 23MAY2024 19:04:45  68.1N  136.4W ML=4.0  EMSC   NORTHERN YUKON TERRITORY, CANA

P: 25MAY2024 163336    66.9N  135.8W 3.0-4.6 ABAAA  Northern Alaska            

 

ROCKY MOUNTAINS REGION

 

O: 23MAY2024 07:00:19  31.6N  104.5W ML=2.1  EMSC   WESTERN TEXAS

O: 23MAY2024 07:48:50  31.6N  104.2W ML=2.3  EMSC   WESTERN TEXAS

O: 24MAY2024 02:35:56  31.6N  104.5W ML=2.4  EMSC   WESTERN TEXAS                

P: 25MAY2024 163246    32.6N  104.6W 2.0-4.3 AAAAA  SW U.S.A                   

 

O: 23MAY2024 20:31:50  32.4N  101.1W ML=2.8  EMSC   WESTERN TEXAS                

P: 27MAY2024 163246    31.6N  103.6W 2.0-4.3 BABAA  SW U.S.A                    

 

EASTERN U.S./CANADA

 

O: 23MAY2024 16:26:26  28.6N   98.6W ML=2.0  EMSC   SOUTHERN TEXAS               

P: 27MAY2024 163204    28.0N   98.0W 3.0-4.4 BAAAA  Northern Mexico            

 

O: 23MAY2024 17:01:45  35.9N   95.1W ML=2.1  EMSC   OKLAHOMA                     

P: 25MAY2024 163265    36.0N   96.0W 2.0-4.0 AAAAA  Southern Plains            

 

O: 24MAY2024 03:03:37  47.5N   70.3W MB=1.8  ECAN OF SAINT-BERNARD-DE-L'├ÄLE-AUX-C

P: 30MAY2024 163283    47.0N   69.0W 2.0-4.0 CAAAA  Maine                      

 

O: 22MAY2024 01:50:15  45.8N   81.7W MB=2.4  ECAN OF WIKWEMIKONG, ON             

O: 22MAY2024 01:49:39  45.8N   81.6W MB=1.9  ECAN OF WIKWEMIKONG, ON   

P: 27MAY2024 163295    41.8N   81.4W 2.0-4.4 BCAAA  Ohio/Lake Erie             

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

EARTHQUAKES IN NEW GUINEA; KENTUCKY WITH SEISMIC LULL

 

EARTHQUAKE SUMMARY FOR MAY 22, 2024

 

Seismicity in the world today continued at low levels as the effects of the major X-class solar flares and massive geomagnetic storms of mid-May, 2024 have apparently triggered much of the currently available seismic stress capable of producing moderate to large earthquakes at this time. The strongest earthquake in the world was an M 5.3 in Eastern New Guinea - an area which has seen enhanced seismicity probably related to the geomagnetic storms (it lies on the geomagnetic equator). Today's event in New Guinea occurred near local solar noon and may also have been promoted by strong tidal stresses with today's full moon as summarized in this and previous issues of this summary:

 

"The full moon will arrive at 13:53 UT on May 23, 2024.  Longitudes which are sub-solar at this time are near 30 West and 150 East. These include the central Atlantic in the west and Japan and much of the eastern Pacific Rim from Kamchatka to New Guinea in the east. These areas may see moderate seismic enhancement over the next seven days to enhanced tidal stresses but other tidally stressed areas may also see increased seismicity at this time." (May 20-23, 2024)

 

Today's M 5.3 in eastern New Guinea was probably an aftershock of an M 5.7 which struck on May 21, 2024 and a foreshock of M 5.3 on May 19, 2024. At that time this summary noted:

 

 

"The strongest earthquake in the world today was an M 5.7 in Papua New Guinea. NEIC reported it was felt with intensity up to IV in Lae, PNG. It occurred near local solar noon and may have been promoted by strong tidal stresses associated with the full moon of May 23 which maximizes over this epicenter as reported in the previous issue of this summary

 

...

 

This event joins other moderately large earthquakes along the geomagnetic equator in Papua New Guinea and New Ireland/Britain which have occurred daily since the major geomagnetic storm of mid-May, the strongest such ionospheric storm since October, 2003. Effects of such geomagnetic storms are greatest along the geomagnetic equator.

 

This is the strongest earthquake within about 200 km of today's epicenter since an M 5.9 on November 14, 2023. The last of M>=6 was an M 6.7 and M 6.9 on October 7, 2023." (May 21, 2024)

 

Forecast 163151 had expected today's event within about 150 km was likely around May 24, 2024.

 

O: 23MAY2024 04:19:02   6.2S  147.8E MB=5.3  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 24MAY2024 163151     5.0S  147.0E 4.0-5.4 ABAAA  New Ireland                 

 

An earthquake of M 2.7 occurred today in eastern Kentucky.  NEIC reported this earthquake of M 2.7 in Kentucky was felt with intensity up to III in the area(s) of  Kentucky in Hyden. The last earthquake with M>=2.7 within about 100 km of today's epicenter was an M 2.8 a year ago on May 20, 2023 and two years before that on May 26, 2021 also with M 2.8. The last earthquake in this general area of larger magnitude than M 2.8 occurred as an M 5.1 on April 9, 2020. At the time this summary noted:

 

"An earthquake of M 5.1 shook large areas of eastern U.S. today. This event was centered on the North Carolina-Virginia border. It was reported by nearly 100,000 persons to NEIC. Maximum intensity V was felt in North Carolina at Sarta, Glade Valle, Ennice, Roaring Gap, Traphill and Hays with IV in Laurel Springs, Thurmond, North Carolina and Independence, Virginia. Light to moderate shaking was reported throughout most of the eastern U.S. including in Tennessee, Virginia, Kentucky, North and South Carolina. It was also reported up to 1500 km from the epicenter in South Dakota, Kansas, Ontario, Nova Scotia, and Arizona among most other states in between. While lighter foreshocks of M 2.2 and 2.1 occurred about a day earlier, an M 2.6 foreshock near local solar midnight may have been tidally enhanced. It was reported felt with maximum intensity V in North Wilkesboro, North Carolina; IV in North Carolina at Sparta, Hiddenite, Lenoir and Statesville among other localities. Damage was minimal but internet pictures showed store items thrown to the floor in many areas and cleanup will be extensive. Some structural damage was reported including the collapse of a chimney in Sparta, North Carolina. The last earthquake of similar or larger magnitude in the area was an M 5.2 on 1916 in the Great Smoky Mountains.

The earthquake of August, 2011 near Mineral, Virginia of M 5.8 was one of the largest in east coast history and did extensive damage as far as Washington, D.C. A series of foreshocks hit the region in the day prior to the mainshock with M 2.1-2.6." (August 9, 2020)

 

Forecast 162956 had expected today's event in this area was likely around

May 20, 2024.

 

O: 22MAY2024 09:47:58  37.0N   83.3W MD=2.7  EMSC   EASTERN KENTUCKY             

O: 22MAY2024 09:47:58  37.0N   83.3W md=2.7  ANSS   SSE of Hyden Kentucky

P: 20MAY2024 162956    36.0N   83.0W 2.0-4.1 AAAAA  Kentucky/Tennessee/NC      

 

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: 22MAY2024 08:00:41  23.8N  121.8E MW=5.1  EMSC   TAIWAN                       

P: 22MAY2024 163208    22.0N  122.0E 4.0-5.4 ABAAA  Taiwan                     

P: 25MAY2024 163208    24.0N  123.0E 4.0-5.4 BAAAA  Taiwan                     

 

NEIC reported this earthquake of M 5.1 in Taiwan was felt with intensity up to III in the area(s) of  Taiwan in Hualien City.

 

O: 22MAY2024 13:19:38  36.4N   71.1E MB=4.6  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 23MAY2024 163227    36.0N   71.0E 3.8-5.4 AAAAA  Hindu Kush/Pakistan        

 

EMSC reported this earthquake of M 4.6 in Afghanistan was felt with intensity up to III in the area(s) of  Afghanistan in Kabul.

 

O: 22MAY2024 19:03:35  38.2N   73.0E MB=4.3  EMSC   TAJIKISTAN                   

P: 20MAY2024 162955    38.0N   74.0E 3.8-5.4 AAAAA  Hindu Kush/Pakistan        

 

INDONESIA AND PHILIPPINES

 

O: 23MAY2024 05:22:54   0.1N  125.8E ML=4.2  EMSC   MOLUCCA SEA                  

P: 27MAY2024 163146     1.0S  127.0E 4.0-5.4 BBBAA  Ceram area                 

 

O: 22MAY2024 16:58:47   0.1S  123.5E ML=4.4  EMSC   SULAWESI, INDONESIA          

P: 22MAY2024 163137     0.0N  123.0E 4.0-5.7 AAAAA  Mindanao, Philippines      

 

O: 22MAY2024 21:00:32   1.8S  151.8E MB=4.7  EMSC   NEW IRELAND REGION, P.N.G.   

P: 21MAY2024 163150     3.0S  152.0E 4.0-5.5 ABAAA  New Britain                

 

O: 22MAY2024 09:32:26   4.0N  122.5E MB=4.4  EMSC   CELEBES SEA                  

P: 22MAY2024 163137     0.0N  123.0E 4.0-5.7 ACAAA  Mindanao, Philippines      

 

O: 22MAY2024 17:20:08   4.7N  126.3E ML=4.3  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 24MAY2024 163138     6.0N  126.0E 4.0-5.4 ABAAA  Mindanao, Philippines      

 

O: 22MAY2024 17:31:01   5.5S  149.7E MB=4.3  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 26MAY2024 163152     6.0S  149.0E 4.0-5.4 BAAAA  New Ireland                

 

O: 23MAY2024 04:19:02   6.2S  147.8E MB=5.3  EMSC   EASTERN NEW GUINEA REG., P.N.G

O: 22MAY2024 09:28:36   6.3S  147.2E mb=4.5  EMSC   EASTERN NEW GUINEA REG., P.N.G.

P: 24MAY2024 163151     5.0S  147.0E 4.0-5.4 ABAAA  New Ireland                

 

O: 22MAY2024 23:16:03   7.6S  127.5E MB=4.3  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 18MAY2024 162868     7.0S  126.0E 4.0-5.4 BABAA  Banda Sea                  

 

O: 22MAY2024 08:47:09  10.3N  126.2E MB=4.6  EMSC   PHILIPPINE ISLANDS REGION    

O: 22MAY2024 14:51:36  10.4N  126.3E ML=4.0  EMSC   PHILIPPINE ISLANDS REGION

P: 23MAY2024 163179    11.0N  125.0E 3.5-4.9 AABAA  Luzon, Philippines         

 

O: 22MAY2024 12:42:04  18.8N  145.5E MB=4.8  EMSC   PAGAN REG., N. MARIANA ISLANDS

P: 17MAY2024 162912    18.0N  145.0E 4.0-5.4 BAAAA  No. Marianas               

 

CENTRAL AND SOUTH AMERICA

 

O: 22MAY2024 08:44:15   2.5N   79.0W MB=4.7  EMSC   SOUTH OF PANAMA              

P: 28MAY2024 163133     4.0N   83.0W 4.0-5.7 CBCAA  Ecuador                    

 

O: 23MAY2024 00:49:33   7.4S   80.0W ML=4.0  EMSC   NEAR COAST OF NORTHERN PERU  

P: 30MAY2024 163154     6.0S   79.0W 4.0-5.7 CBAAA  No. Peru                   

 

O: 22MAY2024 18:22:02  12.6N   88.7W ML=4.0  EMSC   OFFSHORE EL SALVADOR         

P: 23MAY2024 163172    14.0N   89.0W 3.5-5.5 ABAAA  Coast of Central America    

P: 27MAY2024 163172    13.0N   89.0W 3.5-5.6 BAAAA  Coast of Central America   

 

O: 22MAY2024 06:26:31  14.1N   93.5W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 24MAY2024 163171    15.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 22MAY2024 16:38:53  15.4S   70.3W MB=4.5  EMSC   SOUTHERN PERU                

P: 23MAY2024 163346    16.0S   74.0W 4.0-5.8 AACAA  So. Peru/Bolivia           

 

O: 22MAY2024 21:28:01  16.6N   98.4W ML=4.0  EMSC   GUERRERO, MEXICO             

P: 23MAY2024 163189    17.0N   99.0W 3.5-5.2 AAAAA  Oaxaca, Mexico             

 

O: 23MAY2024 01:44:06  17.5S   69.3W MB=4.3  EMSC   LA PAZ, BOLIVIA              

P: 22MAY2024 163347    18.0S   69.0W 4.0-5.5 AAAAA  So. Peru/Bolivia           

 

O: 22MAY2024 21:08:51  18.9N   65.0W MD=3.4  EMSC   VIRGIN ISLANDS REGION        

P: 24MAY2024 163190    18.0N   66.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 22MAY2024 19:36:04  24.2S   66.9W MB=4.4  EMSC   SALTA, ARGENTINA             

P: 23MAY2024 163356    24.0S   69.0W 4.0-5.6 AABAA  Coast No. Chile            

P: 29MAY2024 163354    24.0S   67.0W 4.0-5.7 CAAAA  Argentina                  

 

AFRICA AND EUROPE

 

O: 22MAY2024 16:11:10  26.3S   27.4E ML=3.3  EMSC   SOUTH AFRICA                 

P: 18MAY2024 163098    27.0S   27.0E 3.0-4.9 BAAAA  Rep. South Africa          

 

O: 22MAY2024 09:53:37  45.6N   26.5E ML=4.1  EMSC   ROMANIA                      

P: 17MAY2024 163036    46.0N   26.0E 3.0-4.9 BAAAA  Romania/NW Turkey          

 

EMSC reported this earthquake of M 4.1 in Romania was felt with intensity up to III in the area(s) of  Romania in Focsani, Brasov, Boldesti-Scaeni, Ploiesti, Otopeni, Braila, Chianjna, Bucharest, Popoesti Leondeni, Bragadiru, Curtea de Arges, Andreesti.

 

NEIC reported an earthquake of M 3.0-3.5 in Italy was felt with intensity up to III in the area(s) of  Italy in Collecchio.

EMSC reported light shaking in Campegine, Bagnolo in Piano, Verona.

 

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

 

SOUTHWEST PACIFIC

 

O: 22MAY2024 15:44:57  17.2S  171.9W MB=5.0  EMSC   TONGA REGION                 

P: 23MAY2024 163350    18.0S  175.0W 4.0-5.4 AACAA  Tonga Islands              

 

O: 22MAY2024 09:42:08  19.9S  177.9W MB=4.4  EMSC   FIJI REGION                  

P: 23MAY2024 163362    20.0S  176.0W 4.0-5.8 AABAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 23MAY2024 04:46:46  56.7S   27.2W MB=4.6  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 23MAY2024 163380    56.0S   27.0W 4.0-5.7 AAAAA  So. Sandwich Islands       

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 22MAY2024 20:41:54  34.5S  149.7E ML=3.9  EMSC   NEW SOUTH WALES, AUSTRALIA   

 

EMSC reported this earthquake of M 3.9 in Tasmania, Australia was felt with intensity up to III in the area(s) of  Tasmania, Australia in Batlow.

 

O: 22MAY2024 13:36:32  41.1S  174.7E ML=3.9  EMSC   COOK STRAIT, NEW ZEALAND     

P: 25MAY2024 163375    42.0S  176.0E 3.0-5.3 BAAAA  So. Island, N.Z.           

 

O: 22MAY2024 14:42:35  42.9S  172.9E ML=3.8  EMSC   SOUTH ISLAND OF NEW ZEALAND  

P: 26MAY2024 163375    42.0S  173.0E 3.0-5.1 BAAAA  So. Island, N.Z.           

 

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

today.

 

JAPAN AND KURIL ISLANDS

 

O: 22MAY2024 23:11:44  27.0N  143.7E MB=4.7  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 26MAY2024 163194    28.0N  142.0E 4.0-5.5 BABAA  Bonin Islands              

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 22MAY2024 08:00:32  30.6N  116.5W ML=3.5  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P: 25MAY2024 163247    30.6N  114.6W 2.0-4.3 BABAA  SW U.S.A                   

 

O: 22MAY2024 22:21:20  31.6N  115.7W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO      

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 BAAAA  So. California             

 

O: 23MAY2024 03:24:20  34.3N  118.6W ML=2.0  EMSC   GREATER LOS ANGELES AREA, CALI

P: 24MAY2024 163253    33.6N  118.5W 2.5-4.6 AAAAA  So. California             

 

O: 23MAY2024 01:46:20  34.7N  119.1W ML=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 27MAY2024 163256    34.7N  119.0W 2.5-4.6 BAAAA  So. California             

 

O: 22MAY2024 21:31:27  36.0N  120.5W MD=2.1  EMSC   CENTRAL CALIFORNIA           

P: 23MAY2024 163219    36.4N  121.0W 2.5-4.6 AAAAA  Central California         

 

O: 22MAY2024 10:32:58  37.4N  120.0W MD=2.5  EMSC   CENTRAL CALIFORNIA           

P: 23MAY2024 163221    37.8N  121.9W 2.5-4.5 AABAA  Central California         

 

NEIC reported this earthquake of M 2.5 in Central California was felt with intensity up to III in the area(s) of  Central California in Mariposa.

 

O: 22MAY2024 22:59:34  37.5N  118.9W MD=2.6  EMSC   CENTRAL CALIFORNIA           

P: 23MAY2024 163214    37.3N  118.3W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 23MAY2024 06:13:22  39.4N  123.3W MD=2.3  EMSC   NORTHERN CALIFORNIA          

P: 23MAY2024 163222    39.0N  123.1W 2.5-4.6 AAAAA  Central California         

P: 26MAY2024 163222    39.4N  123.3W 2.5-4.9 BAAAA  Central California         

 

O: 22MAY2024 11:56:01  40.2N  121.2W MD=2.0  EMSC   NORTHERN CALIFORNIA          

P: 23MAY2024 163291    40.0N  120.9W 2.5-4.6 AAAAA  Northern California        

 

ALASKA

 

O: 22MAY2024 23:12:04  51.9N  171.8W ML=3.9  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 20MAY2024 163048    52.3N  171.3W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

O: 22MAY2024 22:29:42  56.3N  148.8W ML=3.4  EMSC   GULF OF ALASKA               

P: 14MAY2024 163073    55.0N  149.0W 3.0-4.8 CBAAA  Northern 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: 22MAY2024 15:11:20  31.6N  104.0W ML=2.0  EMSC   WESTERN TEXAS                

P: 25MAY2024 163246    32.6N  104.6W 2.0-4.3 BAAAA  SW U.S.A                   

 

O: 22MAY2024 15:12:02  44.4N  116.1W ML=3.0  EMSC   SOUTHERN IDAHO               

P: 27MAY2024 163285    44.4N  116.1W 2.0-4.1 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 22MAY2024 09:47:58  37.0N   83.3W MD=2.7  EMSC   EASTERN KENTUCKY             

O: 22MAY2024 09:47:58  37.0N   83.3W md=2.7  ANSS   SSE of Hyden Kentucky

P: 20MAY2024 162956    36.0N   83.0W 2.0-4.1 AAAAA  Kentucky/Tennessee/NC      

 

O: 22MAY2024 08:39:14  35.1N   97.7W ML=2.0  EMSC   OKLAHOMA                     

P: 24MAY2024 163265    34.0N   97.0W 2.0-4.1 ABAAA  Southern Plains            

 

O: 22MAY2024 01:49:39  45.8N   81.6W MB=1.9  ECAN OF WIKWEMIKONG, ON   

O: 21MAY2024 21:53:06  45.8N   81.6W MB=2.4  ECAN OF WIKWEMIKONG, ON   

O: 22MAY2024 01:50:15  45.8N   81.7W MB=2.4  ECAN OF WIKWEMIKONG, ON             

 

HAWAII

 

O: 22MAY2024 17:33:49  19.3N  155.5W ML=3.5  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24MAY2024 163197    19.3N  155.1W 4.0-5.5 AAAAA  Hawaii area                 

 

NEIC reported this earthquake of M 3.4 in Hawaii was felt with intensity up to IV in the area(s) of  Hawaii in Pahala.

 

SEISMICITY AT VOLCANIC CENTERS FOLLOWS GEOMAGNETIC STORM

 

EARTHQUAKE SUMMARY FOR MAY 21, 2024

 

Strong volcanism occurred today in Japan at Sakurajima and Guatemala at Fuego as well as continued tremor near Naples, Italy. This may be related to the recent major geomagnetic storm. Such storms are often followed by a major increase in global volcanism. A series of light earthquakes in Hawaii also continued today with an M 3.4 recorded.

 

Enhanced seismicity also continued today in the region near the geomagnetic equator and included continuing eruptions in Mount Ibu in northern Maluku province. Two earthquakes of M 5.4-5.6 were reported in Indonesia - in Minahasa, Sulawesi and in Papua, New Guinea. These were the strongest earthquakes in the world today.

 

BMG  reported this earthquake of M 5.6 in Sulawesi, Indonesia was felt with intensity up to IV in the area(s) of  Poigar, Bolaang, Mongondow, Sulawesi and III in Kab. Bolaang, Kotamobagu, Banggai and Bone. The last earthquake in Minahasa Sulawesi of equal or larger magnitude than M 5.4 was an M 5.8 about 100 km north of today's event which occurred on May 13, 2024. At the time this summary noted:

 

"BMG reported a moderately strong earthquake occurred in Sulawesi, Indonesia today. BMG reported intensity III in Sulawesi Tengah, Balantak, Banggai with II in Balantak. Lesser shaking was reported from Kab. Mongondow, Minahas, Mongondow, Siau, Biaro, among other regional Kabs." (May 13, 2024)

 

Forecast 163137 had expected the event in Sulawesi was likely within about

100 km around May 22.

 

O: 22MAY2024 05:49:14   0.2N  123.7E MB=5.4  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 22MAY2024 163137     0.0N  123.0E 4.0-5.7 AAAAA  Mindanao, Philippines      

 

An M 6.3-6.5 hit about 100 km northwest of today's M 5.4 in Papua, Indonesia on December 30, 2023, the last such event within about 200 km with M>=5.4. At the time this summary noted:

 

 

"The strongest earthquake of the day was an M 6.3 in the region of West Irian, New Guinea. NEIC reported it was felt with intensity up to VI in the epicentral area near Abepura, Indonesia. EMSC reported moderate shaking in Irian Jaya at Yayapura and Yapen Selatan. BMG reported it with M 6.5 and intensity up to VI in the epicentral area with V-VI in Jayapura, Maris, Sarmi, Burmoso, Wamena and IV in Oksibil, and others. The last earthquake of equal or larger magnitude within about 200 km of today's epicenter was an M 6.3 on June 19, 2019 and an M 7.0 on July 27, 2013 and April 6, 2013.

 

...

 

Strong earthquakes in the  region of Papua, Indonesia can precede enhanced seismicity in Southern California by about a month at a distance of 103 degrees on the earth's surface. A typical example was the M 8.1 in this area on January 10, 1971 followed by the M 6.7 San Fernando earthquake in Los Angeles of February 9, 1971. A similar example occurred in October, 1979 when the Superstition Hills quake in southern California followed a major quake in this area of New Guinea." (December 31, 2023)

 

Forecast 163166 had expected the event in Papua was likely within about

100 km around May 23.

 

O: 21MAY2024 08:32:00   2.2S  138.2E MB=5.4  EMSC   PAPUA, INDONESIA             

P: 23MAY2024 163166     3.0S  139.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

The series of earthquakes near Naples, Italy continue today. The strongest of these was an M 3.6. In the previous issue of this summary this had been addressed as:

 

"A series of light to moderate earthquakes including an M 4.1 and 4.2 also occurred today in the area of Naples, Italy. This is a region where a volcanic eruption could bring significant disruption and destruction should it occur. Seismicity has been increasing in this area over the past several months and may represent precursory activity to volcanism in this area which has seen such activity over the past several millennia - including the eruption of Mt. Vesuvius which covered Herculaneum and Pompei in ash in the first century of the current era. Today's event of M 4.2 is the strongest shallow focus  earthquake (possibly volcanic) near Naples in at least 35 years. Local geophysicists reported to the press it was the strongest in the area in the past 40 years.

 

NEIC reported these earthquakes of M 4.1 and 4.2 in Italy were felt with intensity up to IV in the area(s) of  Italy in Procida. EMSC reported strong shaking in Italy at Procida, Pozzuoli, Giugliano in Campania, Napoli, Quarto, Casoria, San Giorgio a Cremano, Casoria, Marcianise." (May 21, 2024)

 

Forecasts 163012 and 163233 had expected this activity in southern Italy was likely around May 15-23.

 

 

O: 22MAY2024 06:28:00  40.8N   14.1E MD=3.6  EMSC   SOUTHERN ITALY               

P: 23MAY2024 163233    40.0N   14.0E 3.0-4.6 AAAAA  Mediterranean/Sicily       

 

An earthquake of M 4.2-4.3 also occurred in the Pyrennes near the France-Spain border today. EMSC reported this earthquake of M 4.3 in France was felt with intensity up to V in the area(s) of  France in Gerde, Bagneres-de-Bigorre, Labassere, Visker, Esparros, Ayros-Arbouix, Lourdes, Benac, Argeles-Gazost, Saligos, Heches, Esquieze-Sere, Semeac, Tarbes, Lannemezan, Ibos, Vielle-Aure, Cadihan-Trachere, Montrejeau, Louvie-Juzon, Saint-Gaudens, and in Les and Lleida, Spain as a light vibration. The last earthquake to occur within about 200 km of this epicenter with M>=4.2 was an M 4.8 on December 30, 2012. At the time this summary noted in this regard:

 

 

"An unusual earthquake of M 4.2-4.7 hit the Pyrennes on the border between France and Spain today causing concern on the ski slopes at this holiday season. IGN reported this earthquake of M 4.2 was felt with intensity III in Spain in Jaca and Panticosa and II in Alfaro, Ejea de los Caballeros, Huesca and Zaragoza. EMSC reported intensity V in the Pyrennes in Pau. The nearest large city is Toulouse about 100 km to the east. No damage was reported. This is the strongest earthquake in the area in at least four years. An earthquake of M 4.4 hit near this epicenter near Laurens and Nay, France on July 16, 2008 after a similar event on May 18, 2008. The strongest earthquake in the region in the past 22 years was an M 5.4 on November 17, 2006." (December 30, 2012)

 

Forecast 163039 and 163302 had expected this event was likely around May 17-23 within about 50-100 km of today's epicenter.

 

O: 21MAY2024 09:23:32  43.0N    0.1E ML=4.2  EMSC   FRANCE                        

P: 17MAY2024 163039    43.0N    1.0W 3.0-5.4 BAAAA  Spain                      

P: 23MAY2024 163302    43.0N    1.0W 3.0-5.4 AAAAA  Spain                      

 

The Pacific-Antarctic Ridge continued to see moderate earthquakes today. An M 5.3 occurred in this region today. Earthquakes of M 5.4 and 5.1 hit this epicenter on May 14, 2024 - the only such regional event of M>=5.3 in the past four years - and this may be an aftershock of that activity.  At the time this summary noted:

 

 

"An M 5.4 and an aftershock of  M 5.1 occurred today on the Pacific-Antarctic Ridge. These followed strong flares and may have been promoted by SFE. Events at high latitudes are often associated with strong geomagnetic storms which are maximized in polar regions." (May 14, 2024)

 

Forecast 163124 had expected this activity was likely in mid-May in the Pacific-Antarctic Ridge.

 

O: 21MAY2024 11:09:54  54.9S  129.9W MB=5.3  ANSS   PACIFIC-ANTARCTIC RIDGE"     

P: 12MAY2024 163124    56.0S  122.0W 4.0-5.4 CBCAA  Pacific-Antarctic Ridge    

 

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: 22MAY2024 03:09:02  24.3N  122.6E MB=4.4  EMSC   TAIWAN REGION                

P: 25MAY2024 163208    24.0N  123.0E 4.0-5.4 BAAAA  Taiwan                     

 

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

 

INDONESIA AND PHILIPPINES

 

O: 22MAY2024 05:49:14   0.2N  123.7E MB=5.4  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 22MAY2024 163137     0.0N  123.0E 4.0-5.7 AAAAA  Mindanao, Philippines      

 

O: 21MAY2024 08:32:00   2.2S  138.2E MB=5.4  EMSC   PAPUA, INDONESIA             

P: 23MAY2024 163166     3.0S  139.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 22MAY2024 05:27:06   2.6N   96.0E MB=4.6  EMSC   SIMEULUE, INDONESIA          

P: 18MAY2024 162866     2.0N   96.0E 4.0-5.5 BAAAA  Nicobar Islands            

 

O: 21MAY2024 13:17:11   5.5S  151.6E MB=4.0  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 22MAY2024 163152     5.0S  151.0E 4.0-5.4 AAAAA  New Ireland                

 

CENTRAL AND SOUTH AMERICA

 

O: 21MAY2024 09:58:19   6.8N   76.6W MB=4.3  EMSC   NORTHERN COLOMBIA            

P: 24MAY2024 163131     7.0N   78.0W 4.0-5.8 BABAA  Colombia                   

 

NEIC reported this earthquake of M 4.3 in Colombia was felt with intensity up to III in the area(s) of  Colombia in Dabeiba.

 

O: 22MAY2024 03:00:42   9.2S   77.5W ML=4.0  EMSC   CENTRAL PERU                 

P: 22MAY2024 163340    10.0S   75.0W 3.5-5.0 AACAA  Brazil                     

 

O: 21MAY2024 07:14:07   1.5S   79.2W ML=4.2  EMSC   ECUADOR                      

P: 19MAY2024 162872     1.0S   81.0W 4.0-5.4 AABAA  Ecuador                    

 

O: 22MAY2024 05:34:20   2.5N   79.0W MW=5.2  EMSC   NEAR WEST COAST OF COLOMBIA  

P: 21MAY2024 163130     5.0N   78.0W 4.0-5.4 ACAAA  Colombia                   

 

O: 22MAY2024 04:51:26   4.2N   79.1W MB=4.4  EMSC   SOUTH OF PANAMA              

P: 21MAY2024 163130     5.0N   78.0W 4.0-5.4 AAAAA  Colombia                   

 

O: 22MAY2024 05:38:35  12.7N   62.1W ML=3.6  EMSC   GRENADA REGION, WINDWARD ISLAN

P: 22MAY2024 163192    10.0N   63.0W 3.4-5.3 ACAAA  Windward Islands           

 

O: 22MAY2024 06:26:31  14.1N   93.5W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 21MAY2024 14:14:26  15.1N   94.5W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 22MAY2024 06:15:33  15.2N   94.6W ML=4.0  EMSC   OFF COAST OF OAXACA, MEXICO

O: 22MAY2024 06:12:15  14.1N   93.5W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 21MAY2024 163170    14.0N   93.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 21MAY2024 08:30:40  16.0N   97.6W ML=4.0  EMSC   OAXACA, MEXICO               

P: 24MAY2024 163188    15.0N   96.0W 3.5-5.1 BABAA  Oaxaca, Mexico             

 

O: 21MAY2024 17:02:41  16.7N   94.0W ML=4.3  EMSC   CHIAPAS, MEXICO              

P: 17MAY2024 162895    17.0N   95.0W 3.5-5.3 BAAAA  Chiapas, Mexico            

 

O: 21MAY2024 22:47:44  18.5N   69.2W ML=3.1  EMSC   DOMINICAN REPUBLIC           

O: 21MAY2024 09:50:48  18.9N   70.4W ML=3.1  EMSC   DOMINICAN REPUBLIC

P: 19MAY2024 162917    19.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 21MAY2024 12:44:59  18.8N   67.2W MD=3.1  EMSC   PUERTO RICO REGION           

P: 22MAY2024 163190    19.0N   67.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 22MAY2024 01:23:47  18.9N   65.1W MD=3.8  EMSC   VIRGIN ISLANDS REGION        

P: 24MAY2024 163190    18.0N   66.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 21MAY2024 08:21:11  21.9S   68.5W MB=5.2  EMSC   ANTOFAGASTA, CHILE           

P: 17MAY2024 163095    21.0S   69.0W 4.0-5.8 BAAAA  Coast No. Chile            

 

 

AFRICA AND EUROPE

 

O: 22MAY2024 06:28:00  40.8N   14.1E MD=3.6  EMSC   SOUTHERN ITALY               

P: 23MAY2024 163233    40.0N   14.0E 3.0-4.6 AAAAA  Mediterranean/Sicily       

 

O: 21MAY2024 09:23:32  43.0N    0.1E ML=4.2  EMSC   FRANCE                       

P: 17MAY2024 163039    43.0N    1.0W 3.0-5.4 BAAAA  Spain                      

P: 23MAY2024 163302    43.0N    1.0W 3.0-5.4 AAAAA  Spain                      

 

O: 21MAY2024 20:24:50  73.5N    8.0E MB=4.1  EMSC   GREENLAND SEA                

P: 12MAY2024 163079    74.0N   14.0E 3.0-4.4 CAAAA  Norway                     

 

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

 

SOUTHWEST PACIFIC

 

O: 21MAY2024 09:50:40  12.1S  167.2E MW=5.3  EMSC   SANTA CRUZ ISLANDS           

P: 17MAY2024 163090    12.0S  166.0E 4.0-5.7 BAAAA  Vanuatu Islands            

P: 24MAY2024 163351    13.0S  166.0E 4.0-5.5 BAAAA  Vanuatu Islands            

 

O: 21MAY2024 12:58:23  22.4S  170.4E MB=4.9  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 19MAY2024 163096    23.0S  169.0E 4.0-5.5 AAAAA  Loyalty Islands            

P: 23MAY2024 163357    22.0S  169.0E 4.0-5.4 AAAAA  Loyalty Islands            

 

OCEAN RIDGES

 

O: 21MAY2024 20:52:36  73.5N    8.3E Mw=3.9  EMSC   GREENLAND SEA

O: 21MAY2024 20:24:50  73.5N    8.0E MB=4.1  EMSC   GREENLAND SEA                

P: 12MAY2024 163079    74.0N   14.0E 3.0-4.4 CAAAA  Norway                     

 

 

O: 21MAY2024 11:09:54  54.9S  129.9W MB=5.3  EMSC   PACIFIC-ANTARCTIC RIDGE      

O: 21MAY2024 11:09:54  54.9S  129.9W MB=5.3  ANSS   PACIFIC-ANTARCTIC RIDGE"     

P: 12MAY2024 163124    56.0S  122.0W 4.0-5.4 CBCAA  Pacific-Antarctic Ridge    

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today.

 

JAPAN AND KURIL ISLANDS

 

O: 21MAY2024 21:40:30  35.8N  140.1E ML=3.5  EMSC   NEAR EAST COAST OF HONSHU,   

P: 18MAY2024 162971    35.0N  140.0E 4.0-5.4 BAAAA  Off East Coast Honshu      

P: 23MAY2024 163243    35.0N  141.0E 4.0-5.4 AAAAA  Off East Coast Honshu       

 

O: 21MAY2024 20:46:21  37.3N  142.2E MB=4.3  EMSC   OFF EAST COAST OF HONSHU,    

P: 24MAY2024 163244    38.0N  142.0E 4.0-5.5 BAAAA  Off East Coast Honshu      

 

O: 21MAY2024 06:09:33  39.4N  143.3E MB=4.1  EMSC   OFF EAST COAST OF HONSHU, JAPA

P: 19MAY2024 162990    38.0N  145.0E 4.0-5.6 ABBAA  So. of Honshu              

 

O: 21MAY2024 12:06:30  40.6N  143.8E MB=4.4  EMSC   OFF EAST COAST OF HONSHU,    

P: 23MAY2024 163279    41.0N  144.0E 3.5-5.4 AAAAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 21MAY2024 22:11:38  30.9N  114.3W ML=3.4  EMSC   GULF OF CALIFORNIA           

O: 21MAY2024 07:12:40  31.3N  115.3W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO      

P: 25MAY2024 163247    30.6N  114.6W 2.0-4.3 BAAAA  SW U.S.A                   

 

O: 22MAY2024 02:36:44  34.1N  117.5W ML=2.0  EMSC   GREATER LOS ANGELES AREA, CALI

P: 20MAY2024 162986    35.0N  117.7W 2.5-4.4 AAAAA  So. California             

P: 25MAY2024 163254    33.7N  117.5W 2.5-4.5 BAAAA  So. California              

 

O: 21MAY2024 17:20:46  36.0N  117.4W ML=2.8  EMSC   CENTRAL CALIFORNIA           

P: 22MAY2024 163212    36.8N  117.5W 2.5-4.6 AAAAA  California/Nevada area     

P: 24MAY2024 163259    35.5N  117.4W 2.5-4.5 BAAAA  So. California              

 

 

ALASKA

 

O: 21MAY2024 12:52:13  52.0N  173.9W ML=3.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 23MAY2024 163309    52.1N  172.8W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

O: 21MAY2024 13:29:30  67.8N  160.8W ML=3.0  EMSC   NORTHERN ALASKA               

 

O: 19MAY2024 02:35:34  58.7N  133.6W MB=3.4  ECAN OF JUNEAU, AK                  

P: 19MAY2024 163062    59.0N  138.0W 3.0-4.6 AABAA  Southeast Alaska           

 

O: 21MAY2024 13:29:30  67.9N  160.8W ML=3.0  ANSS   KM ESE OF RED                

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 19MAY2024 14:54:43  48.6N  128.6W MB=3.2  ECAN OF TOFINO, BC                  

P: 24MAY2024 163303    47.9N  129.1W 2.8-5.1 BAAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

O: 21MAY2024 10:23:13  31.6N  104.0W ML=2.2  EMSC   WESTERN TEXAS

O: 21MAY2024 14:06:54  31.6N  104.5W ML=3.5  EMSC   WESTERN TEXAS

O: 21MAY2024 19:28:10  31.6N  104.5W ML=2.5  EMSC   WESTERN TEXAS

O: 22MAY2024 01:06:03  31.6N  104.0W ML=2.2  EMSC   WESTERN TEXAS

O: 22MAY2024 02:15:28  31.6N  103.9W ML=2.1  EMSC   WESTERN TEXAS

O: 21MAY2024 14:04:12  31.7N  104.3W ML=2.5  EMSC   WESTERN TEXAS

O: 21MAY2024 16:25:15  31.7N  104.2W ML=2.3  EMSC   WESTERN TEXAS

O: 21MAY2024 16:34:41  31.7N  104.2W ML=2.2  EMSC   WESTERN TEXAS

O: 21MAY2024 18:23:09  31.7N  104.4W ML=2.0  EMSC   WESTERN TEXAS

O: 21MAY2024 19:11:03  31.7N  104.2W ML=3.0  EMSC   WESTERN TEXAS

O: 21MAY2024 19:55:34  31.7N  104.2W ML=2.7  EMSC   WESTERN TEXAS                

P: 17MAY2024 162977    31.4N  103.3W 2.0-4.2 BAAAA  SW U.S.A                   

P: 25MAY2024 163246    32.6N  104.6W 2.0-4.3 BAAAA  SW U.S.A                   

 

O: 21MAY2024 16:49:30  41.6N  112.4W ML=2.2  EMSC   UTAH                         

P: 19MAY2024 162999    41.7N  112.8W 2.0-3.9 AAAAA  Utah area                  

 

O: 21MAY2024 15:29:38  46.3N  111.3W ML=2.8  EMSC   WESTERN MONTANA              

P: 21MAY2024 163305    46.4N  111.4W 2.0-4.0 AAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 21MAY2024 17:21:21  28.5N   98.6W ML=2.0  EMSC   SOUTHERN TEXAS               

P: 16MAY2024 162931    28.0N   99.0W 3.0-4.4 BAAAA  Northern Mexico            

 

O: 21MAY2024 15:23:24  44.3N   73.7W ML=2.1  EMSC   NEW YORK                     

O: 21MAY2024 15:23:24  44.3N   73.7W mb=2.1  ANSS   Elizabethtown New York

O: 21MAY2024 15:23:24  44.2N   73.7W MB=2.5  ECAN OF BURLINGTON, VT   

P: 23MAY2024 163288    44.0N   73.0W 2.0-4.0 AAAAA  New England                

 

O: 21MAY2024 05:38:52  73.9N   69.7W MB=4.5  ECAN OF POND INLET, NU              

P: 16MAY2024 163077    73.3N   73.5W 2.5-4.3 BAAAA  Baffin/Davis Strait Canada 

 

O: 21MAY2024 09:59:56  40.7N   74.8W ML=1.6  ANSS   CALIFON NEW JERSEY           

P: 27MAY2024 163289    41.0N   74.0W 2.0-4.1 BAAAA  New York State             

 

HAWAII

 

O: 21MAY2024 14:37:30  19.7N  155.4W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24MAY2024 163197    19.3N  155.1W 4.0-5.5 BAAAA  Hawaii area                

 

NEIC reported this earthquake of M 3.2 in Hawaii was felt with intensity up to III in the area(s) of  Hawaii in Pa'auilo.

EMSC reported a quick jolt in Pepeekeo, Hawaii.

 

MODERATELY STRONG SEISMICITY CONTINUES ALONG GEOMAGNETIC EQUATOR

 

EARTHQUAKE SUMMARY FOR MAY 20, 2024

 

 

The strongest earthquake in the world today was an M 5.7 in Papua New Guinea. NEIC reported it was felt with intensity up to IV in Lae, PNG. It occurred near local solar noon and may have been promoted by strong tidal stresses associated with the full moon of May 23 which maximizes over this epicenter as reported in the previous issue of this summary:

 

"The full moon will arrive at 13:53 UT on May 23, 2024.  Longitudes which are sub-solar at this time are near 30 West and 150 East. These include the central Atlantic in the west and Japan and much of the eastern Pacific Rim from Kamchatka to New Guinea in the east. These areas may see moderate seismic enhancement over the next seven days to enhanced tidal stresses but other tidally stressed areas may also see increased seismicity at this time." (May 20, 2024)

 

This event joins other moderately large earthquakes along the geomagnetic equator in Papua New Guinea and New Ireland/Britain which have occurred daily since the major geomagnetic storm of mid-May, the strongest such ionospheric storm since October, 2003. Effects of such geomagnetic storms are greatest along the geomagnetic equator.

 

This is the strongest earthquake within about 200 km of today's epicenter since an M 5.9 on November 14, 2023. The last of M>=6 was an M 6.7 and M 6.9 on October 7, 2023. At the time this summary noted:

 

"The earthquakes in New Guinea coincided with a moderate solar flare (#5480) and may have been promoted by SFE associated with that flare.

 

...

 

An M 7.0 occurred about 350 km north of today's epicenter on April 2, 2023. At the time this summary noted:

 

"The last earthquake of M>=6 in this area of Papua was an M 6.0 on January 18, 2020. but no earthquake larger size than this have been recorded in this area since an M 6.7 on January 10, 2002. ...  This epicenter is at 103 degrees from the mainshocks in Turkey and was probably promoted by energy from those sources." (February 9, 2023, April 2, 2023, October 7, 2023)

 

Forecast 162877 had expected today's event was likely in this area around May 20, 2024.

 

O: 21MAY2024 03:35:59   6.3S  147.3E MW=5.7  EMSC   EASTERN NEW GUINEA REG., P.N.G

O: 21MAY2024 03:35:58   6.3S  147.3E mb=5.7  ANSS   Lae Papua New Guinea

P: 20MAY2024 162877     6.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

A series of light to moderate earthquakes including an M 4.1 and 4.2 also  occurred today in the area of Naples, Italy. This is a region where a volcanic eruption could bring significant disruption and destruction should it occur. Seismicity has been increasing in this area over the past several months and may represent precursory activity to volcanism in this area which has seen such activity over the past several millennia - including the eruption of Mt. Vesuvius which covered Herculaneum and Pompei in ash in the first century of the current era. Today's event of M 4.2 is the strongest shallow focus earthquake (possibly volcanic) near Naples in at least 35 years. Local geophysicists reported to the press it was the strongest in the area in the past 40 years.

 

NEIC reported these earthquakes of M 4.1 and 4.2 in Italy were felt with intensity up to IV in the area(s) of  Italy in Procida. EMSC reported strong shaking in Italy at Procida, Pozzuoli, Giugliano in Campania, Napoli, Quarto, Casoria, San Giorgio a Cremano, Casoria, Marcianise.

 

Forecasts 163012 and 163233 had expected this activity in southern Italy was likely around May 15-23.

 

O: 20MAY2024 19:46:13  40.8N   14.1E mb=4.2  EMSC   SOUTHERN ITALY

O: 20MAY2024 21:00:55  40.8N   14.1E MD=3.6  EMSC   SOUTHERN ITALY

O: 20MAY2024 18:10:02  40.7N   14.0E MB=4.1  EMSC   SOUTHERN ITALY               

O: 20MAY2024 19:46:13  40.8N   14.0E mb=4.2  ANSS   NE of Procida Italy

P: 15MAY2024 163012    41.0N   15.0E 3.0-5.1 BAAAA  Italy                      

P: 23MAY2024 163233    40.0N   14.0E 3.0-4.6 BAAAA  Mediterranean/Sicily       

 

The strongest earthquakes in the U.S. or Canada today occurred at high latitudes where they were probably promoted by recent strong solar flares and geomagnetic storms. These event of M 4.5 each were located in the Gulf of Alaska and in  the Baffin Bay area of northeastern Canada. They were not reported felt in these remote epicentral areas.i

 

The last earthquake of equal or larger magnitude in the Gulf of Alaska within

about 250 km of today's epicenter occurred more than a year ago on March 17, 2023. At the time this summary noted:

 

"The strongest earthquake in the U.S. or Canada today was an M 4.9 in the Gulf of Alaska. This is the strongest earthquake within about 200 km of this epicenter since an M 5.0 on May 2, 2016 and a similar M 5.0 on August 27, 2014. The last earthquake in this area of significantly larger magnitude than today's M 4.9, and the only such event in the area in the past 35 years was an M 5.6 on July 25, 2009." (March 17, 2023)

 

Forecasts 163067 and 163332 had expected enhanced seismicity in this area was likely around May 17-24.

 

O: 21MAY2024 02:30:45  58.7N  145.6W MB=4.5  EMSC   GULF OF ALASKA               

P: 17MAY2024 163067    60.1N  148.4W 3.2-5.0 BBBAA  Central Alaska             

P: 24MAY2024 163332    60.2N  147.1W 3.2-5.1 BBAAA  Central Alaska             

 

The M 4.5 in the Baffin Bay west of Greenland today was among the strongest within about 150 km of this epicenter in the past 35 years. This event at high latitudes near the north geomagnetic pole suggests it was triggered by the geomagnetic storm of mid-May, the strongest such storm in the past 21 years. While no earthquakes with magnitude significantly larger than M 4.5 have not hit in this area of Baffin Bay in at least four years, earthquakes about 250 km west of today's epicenter did occur on November 19, 2022. September 26, 2021 both with M 4.5. The only event in this region of significantly larger magnitude was an M 6.0 on July 7, 2009. At the time this summary noted:

 

 

"A large earthquake of M 6.1 hit the Baffin Bay region of Canada southeast of Craig Harbour, Nunavit today. This is a remote region and there were no reports of damage or casualties from this earthquake. While it is not generally known, this is the most seismic region of eastern and central North America and has generated at least six events of M>=6 in the past 100 years. It is part of the opening of the North Atlantic Ocean." (July 7, 2009)

 

Forecast 163077 had expected today's event within about 150 km was likely in mid-May.

 

O: 21MAY2024 05:38:52  73.9N   70.0W MB=4.5  ECAN E OF POND INLET, NU 

O: 21MAY2024 05:38:52  73.9N   69.7W MB=4.5  EMSC   BAFFIN BAY                   

P: 16MAY2024 163077    73.3N   73.5W 2.5-4.3 BAAAA  Baffin/Davis Strait Canada 

 

 

The swarm of light to moderate earthquakes in the Brawley area of Southern California continued today. The largest event in this area today was an M 4.1. Other events in this swarm of M>=4.1 have occurred with M4.6 and 4.8 on February 12, 2024 and before that on December 1, 2023. A similar swarm occurred on April 29 and 30, 2023, a year ago with three events of M 4.3 and one of M 4.1. 

 

NEIC reported today's earthquakes of M 4.1 and M 2.9 in Southern California were felt with intensity up to V in the area(s) of  Southern California in Ocotillo Wells. EMSC reported moderate shaking in El Centro, Julian, El Cajon, Poway, Valley Center, Palm Springs, San Diego, Chula Vista, Escondido, Carlsbad, Oceanside, Fallbrook, San Juan Capistrano, Thousand Oaks, Henderson and in  Baja California, Mexico at Tijuana.

 

Forecast 162979 had expected this activity was likely around May 19.

 

O: 20MAY2024 09:43:35  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 20MAY2024 17:29:59  32.9N  115.5W ML=2.3  EMSC   SOUTHERN CALIFORNIA

O: 20MAY2024 12:17:35  33.0N  116.0W Mw=4.1  EMSC   SOUTHERN CALIFORNIA

O: 20MAY2024 08:43:27  32.9N  115.5W ML=2.8  EMSC   SOUTHERN CALIFORNIA          

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 AAAAA  So. California             

 

An unusual earthquake of M 4.0 occurred today off the west coast of North Island. This event occurred near local solar noon and may have been  promoted by strong tidal stresses and/or geomagnetic effects which maximize near this hour. Earthquakes in this region often precede by several days strongest events in South America. Only two earthquakes within about 150 km of this epicenter have been recorded in the past 35 years - of M 4.5 on May 17, 1999 and M 4.5 on December 17, 2003. At the time of the 2003 event this summary noted:

 

 

"A very unusual earthquake occurred in the Auckland area in northeastern New Zealand today and was reported to probably have been felt in the Northland area by the Institute for Geological and Nuclear Sciences (GNS). This earthquake of M 4.4 appears to be the first of M>4 in the area 34-38S 170-175.5E in at least four years and appears to be the strongest shallow event in the region in more than 10 years." (December 17, 2003)

 

Forecast 163116 had expected regional activation in this area and time in mid-May.

 

O: 21MAY2024 01:52:28  36.4S  173.3E ML=4.0  EMSC   OFF W. COAST OF N. ISLAND, N.Z

P: 16MAY2024 163116    39.0S  174.0E 3.0-4.4 BCAAA  North 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: 20MAY2024 09:20:16  24.2N  121.9E mb=4.4  EMSC   TAIWAN

O: 20MAY2024 07:56:04  24.0N  122.3E MW=4.4  EMSC   TAIWAN REGION                

P: 17MAY2024 162936    24.0N  124.0E 4.0-5.4 BABAA  Taiwan                     

 

O: 20MAY2024 20:34:42  36.5N   70.4E MB=4.5  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 23MAY2024 163227    36.0N   71.0E 3.8-5.4 BAAAA  Hindu Kush/Pakistan        

 

NEIC reported this earthquake of M 4.5 in Afghanistan was felt with intensity up to III in the area(s) of  Afghanistan in Farkhar.

EMSC reported strong shaking in Kabul, Afghanistan and moderate shaking in Dushanbe, Tajikistan.

 

O: 21MAY2024 04:26:45  37.2N   71.5E MB=4.1  EMSC   TAJIKISTAN                    

P: 14MAY2024 162954    37.0N   71.0E 3.8-5.2 CAAAA  Hindu Kush/Pakistan        

P: 24MAY2024 163228    37.0N   72.0E 3.8-5.2 BAAAA  Hindu Kush/Pakistan        

 

O: 20MAY2024 21:27:01  33.6N   81.9E MB=4.7  EMSC   WESTERN XIZANG                

P: 16MAY2024 163002    31.0N   84.0E 3.8-5.6 BCBAA  Xizang                     

 

O: 20MAY2024 18:31:33  41.5N   78.9E MB=4.3  EMSC   SOUTHERN XINJIANG, CHINA     

P: 16MAY2024 163014    41.0N   77.0E 4.0-5.7 BABAA  Kirgizstan/Xinjiang        

P: 26MAY2024 163282    41.0N   78.0E 4.0-5.8 CAAAA  Kirgizstan/Xinjiang        

 

EMSC reported this earthquake of M 4.8 in Southern Xinjiang, China was felt with intensity up to III in the area(s) of  Southern Xinjiang, China in Kazakhstan at Talgar, Almaty, Kaskelen and up to 250 km from the epicenter.

 

O: 21MAY2024 00:27:45  51.8N  159.1E MB=4.0  EMSC   OFF EAST COAST OF KAMCHATKA  

P: 23MAY2024 163314    53.0N  159.0E 4.0-5.7 ABAAA  Kamchatka                  

 

INDONESIA AND PHILIPPINES

 

O: 20MAY2024 13:27:53   3.2S  123.4E ML=4.0  EMSC   SULAWESI, INDONESIA          

P: 17MAY2024 162886     2.0S  123.0E 4.0-5.4 BBAAA  Sulawesi area              

 

O: 21MAY2024 00:53:59   5.0S  102.9E MB=4.9  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 23MAY2024 163160     4.0S  102.0E 4.0-5.4 AAAAA  So. of Sumatera            

 

O: 20MAY2024 19:06:46   5.1N  126.6E ML=4.1  EMSC   MINDANAO, PHILIPPINES        

P: 21MAY2024 163138     4.0N  126.0E 4.0-5.4 ABAAA  Mindanao, Philippines      

 

O: 21MAY2024 03:35:59   6.3S  147.3E MW=5.7  EMSC   EASTERN NEW GUINEA REG., P.N.G

O: 21MAY2024 03:35:58   6.3S  147.3E mb=5.7  ANSS   Lae Papua New Guinea

P: 20MAY2024 162877     6.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

O: 20MAY2024 13:42:23   7.2S  106.7E MB=4.8  EMSC   JAVA, INDONESIA              

P: 15MAY2024 162883     7.0S  107.0E 4.0-5.4 BAAAA  So. of Java                

 

BMG  reported this earthquake of M 5.3 south of Java  was felt with intensity up to IV in the area(s) of  south of Java in  Pasiran, Lumajang, Jawa, Timur and III in Selopuro and Lumajang and II in Kab. Klaten, Sukoharjo, Wonofgiri, Surakarta, Gunungkidul, Pacitan, Ponorogo, Trenggalek and Tulungagung among others.

 

O: 20MAY2024 22:18:53   8.5S  110.8E ML=4.0  EMSC   JAVA, INDONESIA               

P: 15MAY2024 162883     9.0S  109.0E 4.0-5.8 BABAA  So. of Java                

 

O: 20MAY2024 19:42:16   9.0S  112.7E MB=5.2  EMSC   JAVA, INDONESIA              

P: 23MAY2024 163157     9.0S  114.0E 4.0-5.5 BABAA  So. of Bali                

 

NEIC reported this earthquake of M 5.2 in Java, Indonesia was felt with intensity up to IV in the area(s) of  Java, Indonesia in Dampit.

 

O: 20MAY2024 13:04:18  13.8N  145.2E MB=4.5  EMSC   GUAM REGION                  

P: 15MAY2024 162918    14.0N  146.0E 4.0-5.4 BAAAA  So. Marianas/Guam          

 

NEIC reported this earthquake of M 4.5 in Guam was felt with intensity up to III in the area(s) of  Guam in Yigo Village.

EMSC reported moderate shaking in Mangilao, Guam.

 

O: 21MAY2024 04:28:32  18.9N  121.1E MB=4.7  EMSC   LUZON, PHILIPPINES           

P: 20MAY2024 162934    20.0N  121.0E 4.0-5.4 ABAAA  Taiwan                     

 

PHIVOLCS reported this earthquake of M 4.8 in Northern Philippines was felt with intensity up to IV in the area(s) of  Northern Philippines in Calayan and II in Pagudpud, Pasuquin and City of Laoag, Ilocos Norte, Santa Praxedes, Calveria and Sanchez-Mira, Cagayan.

 

CENTRAL AND SOUTH AMERICA

 

O: 20MAY2024 18:02:04  13.8N   98.6W ML=4.1  EMSC   OFF COAST OF OAXACA, MEXICO  

P: 15MAY2024 162914    15.0N   96.0W 3.5-5.1 BBBAA  Oaxaca, Mexico             

 

O: 21MAY2024 02:43:11   3.7S   79.7W MW=5.1  EMSC   NEAR COAST OF ECUADOR        

P: 15MAY2024 162872     4.0S   80.0W 4.0-5.8 CAAAA  Ecuador                    

 

NEIC reported this earthquake of M 5.2 in Ecuador was felt with intensity up to VI in the area(s) of  Ecuador in Zaruma.

EMSC reported moderate shaking in Ecuador at Loja, Vilcabamba, Sayausi, Cuenca, Canoaas de Punta Sal, Guayaquil.

 

O: 20MAY2024 17:25:08  14.0N   93.2W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 19MAY2024 162894    14.0N   93.0W 3.5-5.4 AAAAA  Chiapas, Mexico            

 

O: 20MAY2024 17:23:42  14.6S   73.7W MB=4.5  EMSC   CENTRAL PERU                 

P: 15MAY2024 163080    14.0S   73.0W 4.0-6.0 BAAAA  Central Peru               

 

O: 20MAY2024 23:53:50  15.0S   70.3W MW=5.1  EMSC   SOUTHERN PERU                

P: 19MAY2024 163085    17.0S   68.0W 4.0-5.4 ABBAA  So. Peru/Bolivia           

 

O: 20MAY2024 07:17:22  15.8N   95.2W Mw=4.9  EMSC   OFFSHORE OAXACA, MEXICO

O: 20MAY2024 15:17:30  15.4N   94.7W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 24MAY2024 163171    15.0N   94.0W 3.5-5.1 BAAAA  Chiapas, Mexico            

 

O: 20MAY2024 13:11:14  16.3N   98.1W ML=4.0  EMSC   OAXACA, MEXICO                

P: 16MAY2024 162915    17.0N   99.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

O: 21MAY2024 00:43:15  18.0N   66.9W MD=3.0  EMSC   PUERTO RICO                  

P: 17MAY2024 162916    18.0N   67.0W 3.4-5.3 BAAAA  Puerto Rico                

 

O: 20MAY2024 14:41:21  18.6N   69.0W MD=3.5  EMSC   DOMINICAN REPUBLIC           

P: 19MAY2024 162917    19.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 20MAY2024 07:20:00  18.6N   71.2W ML=3.3  EMSC   DOMINICAN REPUBLIC           

P: 19MAY2024 162917    19.0N   69.0W 3.4-5.1 AABAA  Puerto Rico                

 

O: 20MAY2024 06:48:27  18.6N  100.8W MB=4.6  EMSC   MICHOACAN, MEXICO            

P: 17MAY2024 162915    18.0N  100.0W 3.5-5.1 BAAAA  Oaxaca, Mexico             

 

O: 21MAY2024 04:46:48  19.2N   64.9W MD=3.7  EMSC   VIRGIN ISLANDS REGION

O: 21MAY2024 04:44:13  19.2N   64.7W MD=3.5  EMSC   VIRGIN ISLANDS REGION        

P: 22MAY2024 163193    20.0N   64.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 20MAY2024 16:35:30  22.1S   68.8W MB=4.2  EMSC   ANTOFAGASTA, CHILE           

P: 17MAY2024 163095    21.0S   69.0W 4.0-5.8 BBAAA  Coast No. Chile            

 

O: 20MAY2024 08:09:28  26.2S   69.0W ML=4.2  EMSC   ATACAMA, CHILE               

P: 15MAY2024 163094    28.0S   67.0W 4.0-5.4 BBBAA  Argentina                  

 

O: 21MAY2024 02:15:56  32.6S   70.0W MB=4.5  EMSC   MENDOZA, ARGENTINA           

P: 19MAY2024 163110    33.0S   70.0W 4.0-5.8 AAAAA  Central Chile              

 

AFRICA AND EUROPE

 

O: 20MAY2024 12:28:21  38.5N   39.3E ML=4.0  EMSC   EASTERN TURKEY               

P: 15MAY2024 162997    39.0N   41.0E 3.5-5.3 BABAA  Turkey                     

P: 23MAY2024 163268    38.0N   38.0E 3.5-5.2 BAAAA  Turkey                     

 

O: 20MAY2024 19:46:13  40.8N   14.1E mb=4.2  EMSC   SOUTHERN ITALY

O: 20MAY2024 21:00:55  40.8N   14.1E MD=3.6  EMSC   SOUTHERN ITALY

O: 20MAY2024 18:10:02  40.7N   14.0E MB=4.1  EMSC   SOUTHERN ITALY               

O: 20MAY2024 19:46:13  40.8N   14.0E mb=4.2  ANSS   NE of Procida Italy

P: 15MAY2024 163012    41.0N   15.0E 3.0-5.1 BAAAA  Italy                      

P: 23MAY2024 163233    40.0N   14.0E 3.0-4.6 BAAAA  Mediterranean/Sicily       

 

SOUTHWEST PACIFIC

 

O: 20MAY2024 21:42:00  21.5S  179.3W MB=4.6  EMSC   FIJI REGION                   

P: 17MAY2024 163103    23.0S  180.0W 4.0-5.8 BBAAA  Tonga Islands              

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 20MAY2024 19:31:06  29.3S  177.2W MB=4.9  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P: 17MAY2024 163097    28.0S  176.0W 4.0-5.8 BBAAA  No. Kermadec Islands       

P: 21MAY2024 163358    28.0S  177.0W 4.0-5.6 ABAAA  No. Kermadec Islands       

 

O: 20MAY2024 13:46:26  33.4S  117.0E ML=2.9  EMSC   WESTERN AUSTRALIA            

P: 18MAY2024 163107    30.0S  118.0E 2.0-3.5 ACAAA  Central Australia          

 

O: 21MAY2024 01:52:28  36.4S  173.3E ML=4.0  EMSC   OFF W. COAST OF N. ISLAND, N.Z

P: 16MAY2024 163116    39.0S  174.0E 3.0-4.4 BCAAA  North Island, N.Z.         

 

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

today.

 

JAPAN AND KURIL ISLANDS

 

O: 21MAY2024 06:09:33  39.4N  143.3E MB=4.1  EMSC   OFF EAST COAST OF HONSHU,    

P: 19MAY2024 162990    38.0N  145.0E 4.0-5.6 ABBAA  So. of Honshu              

 

O: 21MAY2024 00:39:37  26.2N  141.4E MW=5.4  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 17MAY2024 162923    27.0N  140.0E 4.0-5.5 BAAAA  Bonin Islands              

P: 24MAY2024 163194    27.0N  140.0E 4.0-5.4 BAAAA  Bonin Islands              

 

O: 21MAY2024 06:46:43  45.1N  148.5E MB=4.4  EMSC   KURIL ISLANDS                

P: 22MAY2024 163299    45.0N  148.0E 3.5-5.4 AAAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 20MAY2024 07:55:36  31.3N  115.3W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

P: 25MAY2024 163249    31.9N  116.3W 2.5-4.7 BAAAA  So. California             

 

O: 20MAY2024 09:43:35  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 20MAY2024 17:29:59  32.9N  115.5W ML=2.3  EMSC   SOUTHERN CALIFORNIA

O: 20MAY2024 12:17:35  33.0N  116.0W Mw=4.1  EMSC   SOUTHERN CALIFORNIA

O: 20MAY2024 08:43:27  32.9N  115.5W ML=2.8  EMSC   SOUTHERN CALIFORNIA          

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 AAAAA  So. California             

 

O: 20MAY2024 14:35:34  35.9N  117.7W ML=2.1  EMSC   CENTRAL CALIFORNIA           

P: 20MAY2024 162986    35.0N  117.7W 2.5-4.4 AAAAA  So. California             

 

O: 20MAY2024 07:55:36  31.3N  115.3W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

P: 25MAY2024 163247    30.6N  114.6W 2.0-4.3 BAAAA  SW U.S.A                   

 

O: 21MAY2024 02:43:31  37.8N  122.2W MD=2.3  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 21MAY2024 03:43:04  38.0N  121.8W MD=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 21MAY2024 00:29:08  37.7N  122.1W MD=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 22MAY2024 163221    37.4N  121.8W 2.5-4.7 AAAAA  Central California         

P: 23MAY2024 163221    37.8N  121.9W 2.5-4.5 AAAAA  Central California         

 

EMSC reported this earthquake of M 2.2 in San Francisco, California was felt with intensity up to III in the area(s) of  San Francisco, California in Oakland, and San Francisco.

 

ALASKA

 

O: 20MAY2024 08:41:27  54.5N  159.8W ML=3.4  EMSC   SOUTH OF ALASKA               

P: 20MAY2024 163063    54.5N  161.8W 3.5-4.9 AABAA  Unimak Islands, Aleutians  

 

O: 20MAY2024 23:24:48  57.1N  156.4W ML=3.1  EMSC   ALASKA PENINSULA

O: 20MAY2024 09:57:41  56.5N  156.6W ML=3.6  EMSC   ALASKA PENINSULA             

P: 14MAY2024 163045    54.7N  156.9W 3.5-4.9 CBAAA  Alaska Peninsula           

 

O: 21MAY2024 02:30:45  58.7N  145.6W MB=4.5  EMSC   GULF OF ALASKA               

P: 17MAY2024 163067    60.1N  148.4W 3.2-5.0 BBBAA  Central Alaska             

P: 24MAY2024 163332    60.2N  147.1W 3.2-5.1 BBAAA  Central Alaska             

 

O: 20MAY2024 19:21:41  59.8N  139.3W ML=3.3  EMSC   SOUTHEASTERN ALASKA          

P: 19MAY2024 163062    59.0N  138.0W 3.0-4.6 AAAAA  Southeast Alaska           

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 21MAY2024 05:09:51  43.6N  128.3W ML=3.1  EMSC   OFF COAST OF OREGON          

O: 20MAY2024 21:02:28  43.6N  130.0W MB=3.8  EMSC   OFF COAST OF OREGON          

P: 18MAY2024 163030    44.4N  129.3W 3.0-4.6 AAAAA  Off Coast of Oregon         

 

O: 20MAY2024 15:30:34  68.0N  136.4W ML=3.7  EMSC   NORTHERN YUKON TERRITORY, CANA

P: 16MAY2024 163075    67.0N  135.0W 2.5-3.9 BAAAA  Yukon Territory, Canada    

 

NEIC reported this earthquake of M 3.7 in Northern Territories, Canada was felt with intensity up to III in the area(s) of  Northern Territories, Canada in Inuvik.

 

ROCKY MOUNTAINS REGION

 

O: 20MAY2024 20:54:40  31.6N  104.5W ML=3.0  EMSC   WESTERN TEXAS                

P: 17MAY2024 162977    31.4N  103.3W 2.0-4.2 BAAAA  SW U.S.A                    

 

O: 20MAY2024 07:28:04  44.4N  115.2W ML=2.5  EMSC   SOUTHERN IDAHO               

P: 15MAY2024 163017    44.4N  115.1W 2.0-4.1 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

 

O: 21MAY2024 05:38:52  73.9N   70.0W MB=4.5  ECAN E OF POND INLET, NU 

O: 21MAY2024 05:38:52  73.9N   69.7W MB=4.5  EMSC   BAFFIN BAY                   

P: 16MAY2024 163077    73.3N   73.5W 2.5-4.3 BAAAA  Baffin/Davis Strait Canada 

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

STRONG EARTHQUAKE SHAKES FOX ISLANDS, ALEUTIANS, ALASKA

 

EARTHQUAKE SUMMARY FOR MAY 19, 2024

 

 

The strongest earthquake in the world today was an M 6.0 in the Fox Islands. NEIC reported it was felt with intensity up to V in Nikolski, Alaska. This is the first earthquake in the U.S. or Canada of M>=6 in the year 2024 to date. The last such earthquake of M>=6 occurred on December 21, 2023 with M 6.1 and prior to that as a M 6.4 on October 16, 2023. Today's earthquake is also the strongest within about  200 km of today's epicenter since an M 6.8 and 6.6 on January 11, 2022. An M 5.0 occurred within minutes of local solar noon and was probably

promoted by strong tidal stresses at this hour.

 

It is likely that this event in the Fox/Andreanof Islands was probably triggered by the major flares and geomagnetic storms of the past week. The geomagnetic storm of May 11-12 was the greatest disturbance in the ionosphere since late October, 2003, more than 20 years ago. This was discussed in this summary at the time as:

 

"It is likely that a major earthquake will occur in the next 10 days most likely in the regions near the geomagnetic equator and/or at high auroral latitudes. Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

O: 19MAY2024 09:35:24  52.2N  170.9W Mw=6.0  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

O: 19MAY2024 11:21:16  52.2N  170.9W Mw=5.0  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

O: 19MAY2024 19:59:09  52.1N  170.8W MB=4.4  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 20MAY2024 163048    52.3N  171.3W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

An earthquake of M 5.2 in Michoacan, Mexico occurred about four minutes after the M 6.0 in the Fox Islands. The mainshock occurred near local solar midnight and may have been promoted by strong tidal stresses. This epicenter is located along the path of total solar eclipse of April 8 and was probably softened at that time. An M 5.4 occurred about 150 km northwest of today's epicenter on April 21, 2024. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 5.5 in the Jalisco/Michoacan area of Mexico. This is the largest earthquake of M>=5.5 within about 250 km of this epicenter since an M 5.8 and M 5.6 on  September 8, 2023. Other recent earthquakes of M>=5.5 have occurred on July 18, 2023 (M 5.6) and December 22, 2021 with M 6.0. An earthquake occurred north of this in the Gulf of California with M 5.6-5.9 on April 19, 2024. Both of these events occurred near the greatest total eclipse of the sun of April 8 which occurred near 18:00 UT. The area has experienced a series of moderate earthquakes since that eclipse but this is the strongest of this series. It is likely that today's event was promoted by strong tidal stresses with that eclipse as well as those with the full moon alignment of April 23." (April 21, 2024)

 

Forecast 162907 had expected today's activity was likely in Michoacan within  about 75 km was likely around May 19.

 

O: 19MAY2024 14:45:29  17.5N  104.7W ML=4.3  EMSC   OFF COAST OF MICHOACAN, MEXICO

O: 20MAY2024 00:04:43  17.5N  104.7W ML=4.3  EMSC   OFF COAST OF MICHOACAN, MEXICO

O: 19MAY2024 09:39:42  17.6N  104.5W MW=5.2  EMSC   OFF COAST OF MICHOACAN, MEXICO

P: 19MAY2024 162907    18.0N  104.0W 3.5-5.1 AAAAA  Michoacan, Mexico          

 

The series of light to moderate earthquakes also was felt in the Brawley region of Southern California today. NEIC reported these earthquakes of M 2.6, 3.1,  in Southern California were felt with intensity up to III in the area(s) of  Southern California in Brawley. A similar swarm occurred last week. Today's activity appears to be related to strong solar flares at the time of its initiation. This was further discussed in the previous issue of this summary in part as:

 

 

"A strong series of minor to moderate earthquakes resumed in southern and Baja California today. NEIC reported these events with magnitude up to 4.0 were being felt up to intensity V with light intensity at Brawley, California. EMSC reported rolling motion in Imperial, California. This sequence began near local solar midnight and re-intensified near local solar noon and may have been promoted by strong tidal stresses which maximize near this hour. A similar series of earthquakes in Southern California occurred following an M 4.9 on May 12, 2024 about 50 km south of today's epicenters but these represent a separate series and are not classical aftershocks of the M 4.9 on May 12, 2024." (May 19, 2024)

 

Forecasts 162979 and 162981 had expected this enhanced seismicity in Southern California was likely around May 15-19, 2024.

 

O: 19MAY2024 07:26:52  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 07:34:14  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 07:50:59  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 08:00:50  32.9N  115.6W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 08:23:26  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 08:25:11  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 11:31:26  32.9N  115.5W ML=2.4  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 11:55:37  32.9N  115.5W ML=2.6  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 12:57:18  32.9N  115.6W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 18:23:31  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 19:23:19  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 20:59:15  32.9N  115.5W ML=2.7  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 20:33:54  31.5N  115.6W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

O: 19MAY2024 10:38:40  32.4N  115.2W ML=2.0  EMSC   BAJA CALIFORNIA, MEXICO      

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 AAAAA  So. California              

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 AAAAA  So. California             

 

An unusually large M 5.0 also occurred today in the northern Mid-Atlantic Ridge. It was not reported felt in this remote area. This event occurred near local solar noon and may have been promoted by tidal stresses which maximize near this hour. Stresses associated with the coming new moon will be  strongest near this longitude as noted in this summary:

 

"The full moon will arrive at 13:53 UT on May 23, 2024.  Longitudes which are sub-solar at this time are near 30 West and 150 East. These include the central Atlantic in the west and Japan and much of the eastern Pacific Rim from Kamchatka to New Guinea in the east. These areas may see moderate seismic enhancement over the next seven days to enhanced tidal stresses but other tidally stressed areas may also see increased seismicity at this time." (May 20, 2024)

 

A strong earthquake of M 6.0 occurred about 150 km southwest of today's epicenter in this area of the northern Mid-Atlantic.

 

Forecasts 162927 and 162968 had expected today's activity was likely within about 100 km of this event in mid-May, 2024.

 

O: 19MAY2024 15:33:24  30.5N   41.9W MB=5.0  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 12MAY2024 162968    31.0N   41.0W 4.0-5.7 CAAAA  No. Mid-Atlantic Ridge     

P: 16MAY2024 162927    29.0N   43.0W 4.0-6.0 BBAAA  Mid-Atlantic Ridge         

 

An unusual earthquake of M 5.1 also shook southern Xinjiang, China today.

NEIC reported this earthquake of M 5.1 in Southern Xinjiang, China was felt with intensity up to VI in the area(s) of  Southern Xinjiang, China in Kashgar.

EMSC reported it was felt with strong shaking in Kazakhstan at Almaty, Kaskelen, and in Bishkek, Kyrgyzstan. This is southwest of the M 7.0 in southern Xinjiang of January 22, 2024 and does not appear to be an aftershock of that event. The last similar earthquake in the area of M>=5.1 was an M 5.1 on December 19, 2023. This followed an M 6.0 on January 19, 2020 and may have been an aftershock of that event.

 

Forecast 163014 had expected today's event within about 100 km was likely around May 16.

 

O: 20MAY2024 05:10:22  40.2N   77.1E MW=5.1  EMSC   SOUTHERN XINJIANG, CHINA     

P: 16MAY2024 163014    41.0N   77.0E 4.0-5.7 AAAAA  Kirgizstan/Xinjiang        

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: 19MAY2024 13:52:06  24.1N  121.8E ML=4.3  EMSC   TAIWAN

O: 19MAY2024 20:35:41  23.2N  120.5E ML=4.2  EMSC   TAIWAN                       

P: 18MAY2024 162935    21.0N  120.0E 4.0-5.6 ACAAA  Taiwan                     

 

O: 20MAY2024 00:19:01  35.9N   74.0E ML=4.0  EMSC   NORTHWESTERN KASHMIR         

P: 14MAY2024 162969    36.0N   75.0E 3.8-5.2 CAAAA  Northern India             

 

O: 19MAY2024 11:45:36  21.1N  102.8E ML=3.8  EMSC   LAOS                         

P: 16MAY2024 162929    26.0N  101.0E 4.0-5.4 BCAAA  Myanmar                    

 

O: 20MAY2024 05:10:22  40.2N   77.1E MW=5.1  EMSC   SOUTHERN XINJIANG, CHINA     

P: 16MAY2024 163014    41.0N   77.0E 4.0-5.7 AAAAA  Kirgizstan/Xinjiang        

 

O: 19MAY2024 14:52:23  44.8N  101.1E ML=4.4  EMSC   CENTRAL MONGOLIA             

 

O: 20MAY2024 03:43:17  58.8N  101.8E MB=4.5  EMSC   SOUTHWESTERN SIBERIA, RUSSIA 

 

 

INDONESIA AND PHILIPPINES

 

O: 19MAY2024 23:39:45   0.0S  126.2E ML=4.2  EMSC   MOLUCCA SEA                  

P: 14MAY2024 162862     1.0N  128.0E 4.0-5.4 BABAA  Halmahera                  

 

O: 19MAY2024 16:57:29   2.3N  128.6E MB=4.7  EMSC   HALMAHERA, INDONESIA         

P: 18MAY2024 162862     3.0N  129.0E 4.0-5.5 AAAAA  Halmahera                  

 

O: 19MAY2024 22:32:21   5.9S  130.2E MB=4.3  EMSC   BANDA SEA                    

P: 20MAY2024 162890     6.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 19MAY2024 18:30:03   6.3S  147.3E MW=5.3  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 20MAY2024 162877     6.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

NEIC reported this earthquake of M 5.3 in Papua New Guinea was felt with intensity up to IV in the area(s) of  Papua New Guinea in  Lae.

 

O: 19MAY2024 15:48:12   9.2S  112.4E ML=4.4  EMSC   SOUTH OF JAVA, INDONESIA     

P: 17MAY2024 162883     6.0S  113.0E 4.0-5.5 ACAAA  So. of Bali                

 

O: 19MAY2024 21:17:12   9.4N  126.1E MB=4.5  EMSC   MINDANAO, PHILIPPINES        

P: 17MAY2024 162859     9.0N  126.0E 4.0-5.4 AAAAA  Central Philippines        

 

NEIC reported this earthquake of M 4.5 in Mindanao, Philippines was felt with intensity up to III in the area(s) of  Mindanao, Philippines in Cantilan.

EMSC reported light shaking in General Luna, Philippines.

 

CENTRAL AND SOUTH AMERICA

 

O: 19MAY2024 18:31:00  10.7N   65.7W MW=4.7  EMSC   OFFSHORE MIRANDA, VENEZUELA  

P: 13MAY2024 162920    10.0N   63.0W 3.4-5.4 CACAA  Windward Islands           

 

NEIC reported this earthquake of M 4.7 in Northern Venezuela was felt with intensity up to VI in the area(s) of  Northern Venezuela in Higuerote.

EMSC reported moderate shaking in Northern Venezuela at Petare, Nuestra Senora del Rosario de Baruta, Caracas.

 

O: 19MAY2024 07:10:45  12.3N   87.5W ML=4.1  EMSC   NEAR COAST OF NICARAGUA      

P: 18MAY2024 162910    13.0N   87.0W 3.5-5.5 AAAAA  Nicaragua                  

 

O: 20MAY2024 03:00:20  15.5N   96.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO

O: 20MAY2024 03:46:11  15.6N   96.7W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 19MAY2024 16:35:03  15.3N   94.7W ML=4.0  EMSC   OFF COAST OF OAXACA, MEXICO

O: 19MAY2024 10:03:51  15.0N   94.8W ML=4.2  EMSC   OFF COAST OF OAXACA, MEXICO  

O: 20MAY2024 02:19:44  15.5N   96.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 15MAY2024 162914    15.0N   96.0W 3.5-5.1 BAAAA  Oaxaca, Mexico             

 

NEIC reported this earthquake of M 4.9 in Oaxaca, Mexico was felt with intensity up to III in the area(s) of  Oaxaca, Mexico in Santa Gertrudis Miramar.

 

O: 20MAY2024 00:55:08  16.8N   61.2W ML=4.3  EMSC   GUADELOUPE REGION, LEEWARD ISL

P: 19MAY2024 162900    16.0N   60.0W 3.0-5.1 AAAAA  Leeward Islands            

P: 19MAY2024 162900    17.0N   62.0W 3.0-4.9 AAAAA  Leeward Islands            

 

EMSC reported this earthquake of M 4.0 in Guadeloupe was felt with intensity up to III in the area(s) of  Guadeloupe in Pointe-a-Pitre, Le Gosier, Baie-Mahault, Petit-Bourg, Deshaies, and in Saint Jhn's, Antigua and Barbuda, Gustavia, Saint Barthelemy. 

 

O: 19MAY2024 09:39:42  17.6N  104.5W MW=5.2  EMSC   OFF COAST OF MICHOACAN, MEXICO

P: 19MAY2024 162907    18.0N  104.0W 3.5-5.1 AAAAA  Michoacan, Mexico          

 

O: 20MAY2024 06:48:14  17.8N  101.1W mb=4.6  EMSC   GUERRERO, MEXICO

O: 19MAY2024 22:02:32  18.3N  101.2W ML=4.0  EMSC   GUERRERO, MEXICO

O: 19MAY2024 14:38:25  17.8N  101.7W ML=4.1  EMSC   GUERRERO, MEXICO             

P: 17MAY2024 162915    18.0N  100.0W 3.5-5.1 AABAA  Oaxaca, Mexico             

 

NEIC reported this earthquake of M 4.6 in Guerrero, Mexico was felt with intensity up to IV in the area(s) of  Guerrero, Mexico in Petatlan.

 

O: 19MAY2024 13:36:03  18.6N   65.2W MD=3.4  EMSC   PUERTO RICO REGION           

P: 17MAY2024 162901    18.0N   64.0W 3.0-5.4 AAAAA  Leeward Islands            

 

O: 19MAY2024 18:38:00  21.6N  100.1W ML=4.0  EMSC   SAN LUIS POTOSI, MEXICO      

P: 17MAY2024 162915    18.0N  100.0W 3.5-5.1 ACAAA  Oaxaca, Mexico             

 

O: 19MAY2024 12:19:34  24.3S   67.3W ML=4.1  EMSC   SALTA, ARGENTINA             

P: 15MAY2024 163093    23.0S   67.0W 4.0-5.4 BBAAA  Argentina                  

 

O: 20MAY2024 00:48:36  27.4N  111.4W ML=4.1  EMSC   GULF OF CALIFORNIA

O: 19MAY2024 14:44:44  28.0N  112.1W ML=4.0  EMSC   GULF OF CALIFORNIA           

P: 14MAY2024 162925    28.0N  112.0W 3.5-5.3 BAAAA  Gulf of California         

 

O: 19MAY2024 14:45:29  17.5N  104.7W ML=4.3  EMSC   OFF COAST OF MICHOACAN, MEXICO

O: 20MAY2024 00:04:43  17.5N  104.7W ML=4.3  EMSC   OFF COAST OF MICHOACAN, MEXICO

O: 19MAY2024 09:39:42  17.6N  104.5W MW=5.2  EMSC   OFF COAST OF MICHOACAN, MEXICO

P: 19MAY2024 162907    18.0N  104.0W 3.5-5.1 AAAAA  Michoacan, Mexico          

 

 

 

AFRICA AND EUROPE

 

O: 20MAY2024 06:33:33  42.5N   47.7E MB=4.0  EMSC   CAUCASUS REGION, RUSSIA      

P: 13MAY2024 163007    40.0N   44.0E 3.5-5.1 CCCAA  Caucasus/Caspian Sea       

 

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

 

SOUTHWEST PACIFIC

 

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

 

OCEAN RIDGES

 

O: 19MAY2024 22:53:03  57.7S   25.2W MB=4.9  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 14MAY2024 163125    56.0S   26.0W 4.0-5.8 BBAAA  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: 20MAY2024 03:39:52  26.7N  140.5E MB=4.0  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 17MAY2024 162923    27.0N  140.0E 4.0-5.5 BAAAA  Bonin Islands              

 

O: 19MAY2024 08:15:37  33.9N  138.1E MB=4.3  EMSC   IZU ISLANDS, JAPAN REGION    

P: 18MAY2024 162971    35.0N  140.0E 4.0-5.4 ABBAA  Off East Coast Honshu      

 

O: 19MAY2024 21:50:00  48.1N  153.3E MB=4.8  EMSC   KURIL ISLANDS                

P: 17MAY2024 163020    47.0N  155.0E 3.5-5.6 ABAAA  NE Pacific                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 19MAY2024 07:26:52  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 07:34:14  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 07:50:59  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 08:00:50  32.9N  115.6W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 08:23:26  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 08:25:11  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 11:31:26  32.9N  115.5W ML=2.4  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 11:55:37  32.9N  115.5W ML=2.6  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 12:57:18  32.9N  115.6W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 18:23:31  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 19:23:19  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 20:59:15  32.9N  115.5W ML=2.7  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 20:33:54  31.5N  115.6W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

O: 19MAY2024 10:38:40  32.4N  115.2W ML=2.0  EMSC   BAJA CALIFORNIA, MEXICO      

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 AAAAA  So. California             

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 AAAAA  So. California             

 

O: 19MAY2024 11:22:53  35.1N  118.9W ML=2.1  EMSC   CENTRAL CALIFORNIA           

P: 16MAY2024 162987    35.5N  118.4W 2.5-4.6 BAAAA  So. California             

 

O: 19MAY2024 11:14:43  35.8N  117.7W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 19MAY2024 17:23:35  35.7N  117.5W ML=3.1  EMSC   SOUTHERN CALIFORNIA          

P: 20MAY2024 162986    35.0N  117.7W 2.5-4.4 AAAAA  So. California             

 

NEIC reported this earthquake of M 3.3 in Central California was felt with intensity up to III in the area(s) of  Central California in Ridgecrest.

 

O: 19MAY2024 21:25:49  37.4N  120.0W MD=2.3  EMSC   CENTRAL CALIFORNIA           

P: 18MAY2024 162948    36.8N  121.3W 2.5-4.6 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.6 in Central California was felt with intensity up to III in the area(s) of  Central California at Little Lake.

 

O: 19MAY2024 12:29:53  38.8N  122.8W MD=2.1  EMSC   NORTHERN CALIFORNIA          

P: 17MAY2024 162950    39.3N  123.2W 2.5-4.8 AAAAA  Central California         

 

O: 20MAY2024 03:08:02  40.6N  123.9W MD=2.1  EMSC   NORTHERN CALIFORNIA          

P: 17MAY2024 163027    40.2N  124.2W 2.5-4.6 BAAAA  Off Coast of No. Calif     

 

O: 19MAY2024 19:57:30  41.9N  119.6W MD=2.0  EMSC   NEVADA                       

P: 13MAY2024 163032    42.1N  120.3W 2.0-4.2 CAAAA  Oregon state, U.S.         

 

 

ALASKA

 

 

O: 20MAY2024 04:05:43  51.0N  179.9W ML=3.5  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 17MAY2024 163047    51.2N  179.9W 3.5-5.2 BAAAA  Andreanoff Isls, Aleutians 

 

O: 19MAY2024 09:35:24  52.2N  170.9W Mw=6.0  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

O: 19MAY2024 11:21:16  52.2N  170.9W Mw=5.0  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

O: 19MAY2024 19:59:09  52.1N  170.8W MB=4.4  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 20MAY2024 163048    52.3N  171.3W 3.5-4.9 AAAAA  Andreanoff Isls, 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: 20MAY2024 04:48:45  31.6N  104.5W ML=2.0  EMSC   WESTERN TEXAS

O: 20MAY2024 05:25:46  31.6N  104.0W ML=2.0  EMSC   WESTERN TEXAS

O: 19MAY2024 12:12:55  31.7N  104.2W ML=2.6  EMSC   WESTERN TEXAS

O: 19MAY2024 18:09:20  31.7N  104.2W ML=2.1  EMSC   WESTERN TEXAS

O: 19MAY2024 09:53:22  31.6N  104.4W ML=2.1  EMSC   WESTERN TEXAS                

P: 17MAY2024 162977    31.4N  103.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 19MAY2024 15:38:44  44.4N  115.2W ML=2.4  EMSC   SOUTHERN IDAHO

O: 19MAY2024 12:41:15  44.4N  115.2W ML=2.4  EMSC   SOUTHERN IDAHO               

P: 15MAY2024 163017    44.4N  115.1W 2.0-4.1 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 19MAY2024 23:28:10  28.4N   98.7W ML=2.4  EMSC   SOUTHERN TEXAS               

P: 16MAY2024 162931    28.0N   99.0W 3.0-4.4 BAAAA  Northern Mexico            

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

MODERATELY STRONG QUAKE ON GEOMAGNETIC EQUATOR IN PAPUA NEW GUINEA

 

EARTHQUAKE SUMMARY FOR MAY 18, 2024

 

 

The largest earthquake in the world today was an M 5.7 in Papua New Guinea. NEIC reported it was felt with intensity up to V in Rabaul, New Guinea. This event occurred within minutes of local solar midnight and was probably promoted by tidal and geomagnetic stresses which maximize near this hour. This appears to be a regional aftershock of an M 5.4 on May 16, 2024. At the time this summary noted:

 

"As the geomagnetic storm reduced in intensity today, moderately enhanced seismicity began to appear along the geomagnetic equator. Most notably this occurred in New Guinea in the area of New Ireland with the strongest earthquake of the day and in eastern New Guinea with an M 5.2 three hours earlier. This is the type of seismicity which can be expected several days following major geomagnetic storms. The M 5.4 in New Ireland since an M 5.5 on November 18, 2023 - an aftershock of an M 5.9 and M 6.1 on November, 12 and 13, 2023." (May 16, 2024) At the time

 

Forecasts 162878 and 162876 had expected today's activity in the New Ireland area in mid-May.

 

O: 18MAY2024 14:04:45   3.8S  152.1E MW=5.7  EMSC   NEW IRELAND REGION, P.N.G.   

P: 17MAY2024 162876     5.0S  153.0E 4.0-5.4 ABAAA  New Britain                

P: 17MAY2024 162876     5.0S  153.0E 4.0-5.4 ABBAA  New Britain                

 

An unusually large M 4.7 occurred today in the area west of Portugal in the Azores-Cape St. Vincent Ridge. It was not immediately reported felt in the area. About the same time a green meteorite was photographed over Portugal and was widely view as a bright object. It is believed to have crashed on land in northern Portugal according to internet news sources. This is the strongest earthquake in this area off Portugal within about 300 km since an M 4.7 on February 17, 2020. The last earthquake in this area of M>4.7 occurred on January 9 and 10, 2006 with M 5.3 and M 5.5. At the time this summary noted in this regard:

 

"The event in the North Atlantic off Portugal occurred near the epicenter of the earthquake which occurred on Nov. 1, 1755 and destroyed much of western Portugal with a tsunami. That earthquake was probably well above M 8.0. The area is therefore capable of much stronger events. The region became active at the end of December when an M 4.4 was felt widely in northwestern Portugal. This is the strongest earthquake located in this region (30-45N 10-20W) by NEIC since an M 6.6 occurred more than 20 years ago on Oct. 17, 1983. The long period of quiet in the area may have been a result of two events of M 8.0 which hit the region on May 26, 1975 and  Feb. 28, 1969. Regional stress may now be building to another strong earthquake in the region." (January 10, 2026)

 

This epicenter is at 104 degrees from the M 7.4 in Taiwan of April 2, 2024 and may have been promoted by energy from that source.

 

O: 18MAY2024 20:36:17  38.8N   13.1W MB=4.7  EMSC   AZORES-CAPE ST. VINCENT RIDGE

 

Moderate to moderately large earthquakes also hit oceanic areas today north of Svalbard (M 5.4) and in the Southern East Pacific Rise (M 5.3). The last earthquake of M>=5.4 within about 500 km of this epicenter in the Arctic Ocean north of Svalbard occurred on May 21, 2022 (M 5.8) - the only such event in this region in at least 35 years.

 

O: 19MAY2024 02:31:21  85.2N   12.1E MW=5.4  EMSC   NORTH OF SVALBARD            

 

The event in the Southern East Pacific Rise of M 5.3 was the strongest within about 250 km of that epicenter since an M 5.5 on December 14, 2023.   At the time this summary noted this earthquake which occurred with a major X-class solar flare (strongest in six years) as:

 

"An M 4.9 also occurred today in the southern East Pacific Rise. It was not felt in this remote area. The last event of M>=4.9 within about 300 km of this epicenter occurred on May 8, 2023. At the time this summary noted:

 

"The strongest earthquake in the world today was an M 5.8 in the southern East Pacific Rise. It was not reported felt in this remote area. An earthquake with magnitude M 5.3 hit this region May 3, 2023 but the last event within about 300 km of this epicenter with M>=5.8 was an  M 5.8 on January 1, 2023 and prior to that an M 5.9 on September 7, and an M 6.2 September 4, 2022. The M 6.2 occurred with a major geomagnetic storm at a high latitude - as did today's event ..." (December 14, 2023)

 

Forecast 163124 had expected this event within about 50 km was likely around

May 12, 2024.

 

O: 18MAY2024 23:57:41  55.9S  123.2W MB=5.3  EMSC   SOUTHERN EAST PACIFIC RISE   

P: 12MAY2024 163124    56.0S  122.0W 4.0-5.4 CAAAA  Pacific-Antarctic Ridge    

 

A strong series of minor to moderate earthquakes resumed in southern and Baja California today. NEIC reported these events with magnitude up to 4.0 were being felt up to intensity V with light intensity at Brawley, California. EMSC reported rolling motion in Imperial, California. This sequence began near local solar midnight and re-intensified near local solar noon and may have been promoted by strong tidal stresses which maximize near this hour. A similar series of earthquakes in Southern California occurred following an M 4.9 on May 12, 2024 about 50 km south of today's epicenters but these represent a separate series and are not classical aftershocks of the M 4.9 on May 12, 2024.  At the time this summary noted:

 

 

"As the geomagnetic storm wound down today, the expected resurgence of global seismicity began. This started with an M 6.4 off the coast of Guatemala and Chiapas, Mexico. Then near local solar noon an earthquake of M 4.9-5.0 occurred in Baja California. This was accompanied by a number of foreshocks and moderate aftershocks." (May 12, 2024)

 

Forecasts 162979 and  162981 had expected these earthquakes were likely within about 10 km were likely around May 15-19, 2024. This activity is at 104 degrees from the M 7.0 of January 22, 2024 and from the M 6.9 in New Guinea of March 23, 2024 and may have been promoted by energy from that source.

 

Following is a listing of events of M>=3 in Southern California today. A listing of events of M>=2 is located under the "CALIFORNIA" section of this report.

 

O: 18MAY2024 09:18:34  32.9N  115.5W ML=2.9  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 09:36:37  32.9N  115.5W Mw=3.7  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:38:00  32.9N  115.5W Mw=3.6  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:41:52  32.9N  115.5W Mw=3.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 15:52:12  32.9N  115.5W Mw=3.8  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 16:30:17  32.9N  115.5W Mw=3.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 19:17:22  32.9N  115.5W Mw=3.6  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 19:46:16  32.9N  115.6W ML=3.4  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:05:04  32.9N  115.5W Mw=3.9  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:06:34  32.9N  115.5W ML=3.0  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:13:26  32.9N  115.5W Mw=3.7  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:24:09  32.9N  115.5W ML=3.4  EMSC   SOUTHERN CALIFORNIA

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 BAAAA  So. California              

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 AAAAA  So. California             

 

 

The strongest earthquakes in the U.S. or Canada today reached M 4.5. These occurred in the Aleutians of Alaska in the Rat Islands and in the Fox Islands and were not reported felt in these remote areas. The M 4.5 in the Fox Islands occurred within minutes of local solar noon and may have been promoted by strong tidal stresses which maximize near this hour. These events continue seismic enhancement in the area of the past several days as illustrated in the previous issue of this summary:

 

 

"The strongest earthquake in the U.S. or Canada today was an M 4.6 in the

Andreanof Islands, Alaska. It was not reported felt in this remote epicentral area. An earthquake of M 4.9 occurred in the Andreanof Islands about 200 km east of today's epicenter on May 11, 2024 ...

 

"It is likely that a major earthquake will occur in the next 10 days most likely in the regions near the geomagnetic equator and/or at high auroral latitudes. Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

Further moderate to strong seismic enhancement is likely in the Aleutians and the Kermadec Islands in the next several days." (May 17, 2024)

 

 

Forecasts 163051 and 163059 had expected these events were likely to occur within about 100 km around May 17-19.

 

O: 18MAY2024 23:27:41  52.6N  167.0W MB=4.5  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 19MAY2024 163051    53.5N  167.3W 3.5-4.9 AAAAA  Fox Islands, Aleutians     

 

O: 19MAY2024 03:54:17  50.6N  176.7E MB=4.5  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 17MAY2024 163059    52.0N  176.0E 4.0-5.8 ABAAA  Rat 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: 19MAY2024 02:55:21  24.2N  121.8E ML=4.2  EMSC   TAIWAN

O: 18MAY2024 18:00:29  23.7N  121.8E MW=4.2  EMSC   TAIWAN                       

P: 17MAY2024 162936    24.0N  124.0E 4.0-5.4 AABAA  Taiwan                     

 

O: 18MAY2024 19:38:48  36.5N   77.0E MB=4.6  EMSC   SOUTHERN XINJIANG, CHINA     

P: 14MAY2024 162969    36.0N   75.0E 3.8-5.2 BABAA  Northern India             

 

O: 18MAY2024 19:35:44  40.4N  113.8E MB=4.2  EMSC   NEI MONGOL-SHANXI BORDER, CHIN

 

INDONESIA AND PHILIPPINES

 

O: 18MAY2024 13:34:14   2.7N  126.8E ML=4.0  EMSC   MOLUCCA SEA                  

P: 14MAY2024 162862     1.0N  128.0E 4.0-5.4 BBBAA  Halmahera                  

 

O: 18MAY2024 14:04:45   3.8S  152.1E MW=5.7  EMSC   NEW IRELAND REGION, P.N.G.   

P: 17MAY2024 162876     5.0S  153.0E 4.0-5.4 ABAAA  New Britain                

 

O: 18MAY2024 22:54:08   5.2N   93.7E ML=4.2  EMSC   OFF W COAST OF NORTHERN      

P: 13MAY2024 162866     3.0N   93.0E 4.0-5.6 BCAAA  Nicobar Islands            

 

O: 18MAY2024 11:42:10   7.6S  128.8E ML=4.5  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 16MAY2024 162890     7.0S  130.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 18MAY2024 12:51:15  17.7N  120.6E ML=4.2  EMSC   LUZON, PHILIPPINES           

P: 17MAY2024 162905    17.0N  120.0E 3.5-5.1 AAAAA  Luzon, Philippines         

 

CENTRAL AND SOUTH AMERICA

 

O: 18MAY2024 16:09:30   9.4N   84.6W ML=4.0  EMSC   COSTA RICA                   

P: 15MAY2024 162893    10.0N   84.0W 3.5-5.3 BAAAA  Caribbean Sea              

 

O: 19MAY2024 07:10:45  12.3N   87.5W ML=4.1  EMSC   NEAR COAST OF NICARAGUA      

P: 18MAY2024 162910    13.0N   87.0W 3.5-5.5 AAAAA  Nicaragua                  

 

O: 18MAY2024 22:38:04  14.2N   93.0W ML=4.3  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 19MAY2024 162894    14.0N   93.0W 3.5-5.4 AAAAA  Chiapas, Mexico            

 

O: 18MAY2024 15:31:57  16.3N   97.5W ML=4.0  EMSC   OAXACA, MEXICO               

P: 16MAY2024 162915    17.0N   99.0W 3.5-5.3 AABAA  Oaxaca, Mexico             

 

O: 18MAY2024 14:37:55  14.3N   93.0W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 19MAY2024 00:28:03  14.3N   93.0W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 18MAY2024 22:40:40  14.4N   93.0W Mw=4.9  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 18MAY2024 20:35:04  16.7N   94.0W ML=4.0  EMSC   CHIAPAS, MEXICO              

P: 17MAY2024 162895    17.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 19MAY2024 04:14:25  17.8N   97.1W ML=4.0  EMSC   OAXACA, MEXICO               

P: 15MAY2024 162914    17.0N   96.0W 3.5-5.2 BAAAA  Oaxaca, Mexico             

 

O: 18MAY2024 15:11:42  18.6N   67.2W MD=3.2  EMSC   PUERTO RICO REGION           

O: 19MAY2024 03:49:59  18.1N   68.1W MD=3.4  EMSC   MONA PASSAGE, DOMINICAN REPUBLIC

O: 18MAY2024 23:24:00  18.4N   67.6W MD=3.0  EMSC   MONA PASSAGE, PUERTO RICO

O: 18MAY2024 22:37:49  18.5N   69.6W ML=3.0  EMSC   DOMINICAN REPUBLIC

P: 17MAY2024 162916    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 18MAY2024 08:52:38  18.7S   69.7W MB=4.3  EMSC   TARAPACA, CHILE              

P: 19MAY2024 163085    17.0S   68.0W 4.0-5.4 ABBAA  So. Peru/Bolivia           

 

O: 18MAY2024 10:30:52  18.9N   65.0W MD=3.3  EMSC   VIRGIN ISLANDS REGION        

O: 18MAY2024 19:35:20  19.3N   64.6W MD=3.5  EMSC   VIRGIN ISLANDS REGION        

P: 17MAY2024 162901    18.0N   64.0W 3.0-5.4 ABAAA  Leeward Islands            

 

O: 18MAY2024 21:15:47  20.0N   70.6W ML=3.5  EMSC   DOMINICAN REPUBLIC REGION    

P: 15MAY2024 162922    20.0N   71.0W 3.0-4.6 BAAAA  Bahamas/No. Caribbean      

 

O: 18MAY2024 09:28:38  32.9S   70.9W MB=4.4  EMSC   VALPARAISO, CHILE            

P: 19MAY2024 163110    33.0S   70.0W 4.0-5.8 AAAAA  Central Chile              

 

NEIC reported this earthquake of M 4.4 in Central Chile was felt with intensity up to IV in the area(s) of  Central Chile in Llaillay.

EMSC reported moderate shaking in Central Chile in Quillota, Colina, Puchuncavi, Renca, Cerro Navia, Las Condes, Nunoa, Valparaiso, Vina del Mar, La Reina, Algarrobo.

 

AFRICA AND EUROPE

 

O: 19MAY2024 04:19:12  85.2N   13.2E mb=4.4  EMSC   NORTH OF SVALBARD

 

SOUTHWEST PACIFIC

 

O: 19MAY2024 05:08:34  10.2S  161.1E MB=4.5  EMSC   SOLOMON ISLANDS              

P: 16MAY2024 163082    10.0S  160.0E 4.0-5.7 BAAAA  No. of Santa Cruz Islands  

 

O: 19MAY2024 06:17:28  15.0S  168.2E MB=4.9  EMSC   VANUATU                      

P: 15MAY2024 163091    14.0S  168.0E 4.0-5.6 BAAAA  Vanuatu Islands            

 

O: 18MAY2024 09:41:51  23.6S  179.7W MB=4.5  EMSC   SOUTH OF FIJI ISLANDS        

P: 17MAY2024 163103    23.0S  180.0W 4.0-5.8 AAAAA  Tonga Islands              

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 19MAY2024 03:51:05  30.3S  117.8E ML=3.3  EMSC   WESTERN AUSTRALIA            

O: 18MAY2024 07:36:38  30.6S  121.5E ML=3.1  EMSC   WESTERN AUSTRALIA            

P: 18MAY2024 163107    30.0S  118.0E 2.0-3.5 AAAAA  Central Australia          

 

EMSC reported this earthquake of M 3.1 in Western Australia was felt with intensity up to III in the area(s) of  Western Australia in Kalgoorlie.

 

O: 19MAY2024 05:01:37  31.4S  178.9W MB=4.9  EMSC   KERMADEC ISLANDS REGION      

P: 15MAY2024 163117    33.0S  179.0W 4.0-5.4 BBAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 18MAY2024 15:45:54  37.2N  141.6E MB=4.7  EMSC   NEAR EAST COAST OF HONSHU,   

P: 16MAY2024 162973    37.0N  141.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

NEIC reported this earthquake of M 4.7 in Eastern Honshu, Japan was felt with intensity up to V in the area(s) of  Eastern Honshu, Japan in Tomioka.

EMSC reported light shaking in Tokyo, Japan.

 

O: 19MAY2024 00:51:35  25.1N  127.9E MB=4.4  EMSC   RYUKYU ISLANDS, JAPAN        

P: 18MAY2024 162932    26.0N  125.0E 4.0-5.6 AABAA  Ryukyu Islands             

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 18MAY2024 08:51:13  29.2N  113.3W ML=3.7  EMSC   IS. ANGEL DE LA GUARDA, BC, ME

P:  7MAY2024 162655    29.0N  113.0W 3.5-5.2 CAAAA  Gulf of California         

P: 14MAY2024 162925    28.0N  112.0W 3.5-5.3 BBBAA  Gulf of California         

 

O: 19MAY2024 03:46:45  37.5N  118.9W MD=2.8  EMSC   CENTRAL CALIFORNIA           

P: 17MAY2024 162942    37.8N  118.2W 2.5-4.7 AAAAA  California/Nevada area     

 

NEIC reported this earthquake of M 2.8 in Mammoth Lakes, California was felt with intensity up to III in the area(s) of  Mammoth Lakes, California. 

 

O: 18MAY2024 20:57:44  37.8N  122.2W MD=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 14MAY2024 162949    37.1N  121.9W 2.5-4.6 BAAAA  Central California         

 

EMSC reported this earthquake of M 2.1 in San Francisco, California was felt with intensity up to III in the area(s) of  San Francisco, California in Oakland.

 

O: 18MAY2024 23:39:41  38.8N  121.4W ML=2.6  EMSC   NORTHERN CALIFORNIA          

P: 17MAY2024 162945    38.8N  119.6W 2.5-4.8 AABAA  California/Nevada area     

P: 19MAY2024 162946    39.3N  120.0W 2.5-4.8 AABAA  California/Nevada area     

 

NEIC reported this earthquake of M 2.6 in Central California was felt with intensity up to IV in the area(s) of  Central California at Lincoln.

 

 

O: 18MAY2024 08:29:17  32.9N  115.6W ML=2.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 08:41:29  32.9N  115.5W ML=2.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 09:18:34  32.9N  115.5W ML=2.9  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 09:23:47  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 09:36:37  32.9N  115.5W Mw=3.7  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 10:17:33  32.9N  115.6W ML=2.8  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 11:16:27  32.9N  115.6W ML=2.7  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 11:45:38  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:24:49  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:32:52  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:38:00  32.9N  115.5W Mw=3.6  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:39:51  32.9N  115.5W ML=2.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:41:52  32.9N  115.5W Mw=3.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 12:46:49  32.9N  115.5W ML=2.3  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 13:05:35  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 13:16:30  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 13:38:53  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 14:32:25  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 14:44:01  32.9N  115.5W ML=2.6  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 15:52:12  32.9N  115.5W Mw=3.8  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 15:56:46  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 16:02:18  32.9N  115.5W ML=2.8  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 16:28:20  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 16:30:17  32.9N  115.5W Mw=3.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 17:37:34  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 18:03:12  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 18:06:59  32.9N  115.5W ML=2.4  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 18:58:56  32.9N  115.5W ML=2.8  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 19:13:27  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 19:17:22  32.9N  115.5W Mw=3.6  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 19:46:16  32.9N  115.6W ML=3.4  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 21:23:17  32.9N  115.6W ML=2.8  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 21:47:28  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 22:58:18  32.9N  115.6W ML=3.4  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:05:04  32.9N  115.5W Mw=3.9  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:06:34  32.9N  115.5W ML=3.0  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:13:26  32.9N  115.5W Mw=3.7  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:15:31  32.9N  115.5W ML=2.6  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:19:40  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:24:09  32.9N  115.5W ML=3.4  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:27:07  32.9N  115.5W ML=2.4  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:33:25  32.9N  115.5W ML=2.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:41:16  32.9N  115.5W ML=2.3  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 23:59:38  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 00:01:32  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 00:03:37  32.9N  115.5W ML=2.6  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 00:30:25  32.9N  115.5W ML=2.4  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 02:33:36  32.9N  115.5W ML=2.4  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 02:55:43  32.9N  115.5W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 04:35:12  32.9N  115.6W ML=2.0  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 04:46:59  32.9N  115.5W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 19MAY2024 06:09:10  32.9N  115.5W ML=2.5  EMSC   SOUTHERN CALIFORNIA

O: 18MAY2024 13:57:28  33.3N  115.7W ML=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 BAAAA  So. California             

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 AAAAA  So. California             

 

ALASKA

 

O: 19MAY2024 03:54:17  50.6N  176.7E MB=4.5  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 17MAY2024 163059    52.0N  176.0E 4.0-5.8 ABAAA  Rat Islands                

 

O: 18MAY2024 23:27:41  52.6N  167.0W MB=4.5  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 19MAY2024 163051    53.5N  167.3W 3.5-4.9 AAAAA  Fox Islands, Aleutians     

 

O: 19MAY2024 02:35:36  58.8N  134.3W ML=3.2  EMSC   SOUTHEASTERN ALASKA          

P: 19MAY2024 163062    59.0N  138.0W 3.0-4.6 AABAA  Southeast Alaska           

 

NEIC reported this earthquake of M 3.2 in Southeastern Alaska was felt with intensity up to III in the area(s) of  Southeastern Alaska in Juneau.

 

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: 18MAY2024 22:39:11  31.6N  104.5W ML=2.0  EMSC   WESTERN TEXAS

O: 19MAY2024 06:40:41  31.7N  104.3W ML=2.2  EMSC   WESTERN TEXAS

O: 18MAY2024 08:01:52  31.6N  104.0W ML=2.0  EMSC   WESTERN TEXAS                

P: 17MAY2024 162977    31.4N  103.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 19MAY2024 04:46:46  29.1N   97.9W ML=2.0  EMSC   SOUTHERN TEXAS               

P: 16MAY2024 162931    28.0N   99.0W 3.0-4.4 BBAAA  Northern Mexico            

 

O: 18MAY2024 10:19:03  35.5N   91.8W MD=2.1  EMSC   ARKANSAS                     

P: 12MAY2024 162962    35.0N   92.0W 2.0-4.2 CAAAA  New Madrid area            

 

O: 17MAY2024 15:45:38  47.6N   69.9W MB=1.0  ECAN OF SAINT-PASCAL, QC            

P: 17MAY2024 163016    47.0N   70.0W 2.0-3.9 AAAAA  Maine                      

 

O: 18MAY2024 06:23:58  33.1N   84.9W MD=2.2  ANSS   E OF LAGRANGE GEORGIA        

P: 11MAY2024 162991    34.0N   85.0W 2.0-4.3 CAAAA  Southeast U.S.             

 

O: 18MAY2024 12:18:59  42.9N   72.5W ML=1.6  ANSS   CHESTERFIELD NEW HAMPSHIRE   

P: 18MAY2024 163021    42.0N   72.0W 2.0-4.2 AAAAA  New England                

 

HAWAII

 

O: 18MAY2024 13:48:45  19.2N  155.9W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII     

 

NEIC reported this earthquake of M 3.2 in Hawaii was felt with intensity up to III in the area(s) of  Hawaii at Hawaiian Ocean View.

 

 

STRONG EARTHQUAKE IN KERMADEC ISLANDS, NEW ZEALAND WITH STRONG SOLAR FLARE

 

EARTHQUAKE SUMMARY FOR MAY 17, 2024

 

 

 

The strongest earthquake in the world today was an M 5.8 in the Kermadec Islands, New Zealand. It was not reported felt in this remote area. It appears that it was triggered by Solar Flare Effects (SFE) associated with solar flare #3840 - an M7.2 flare as it occurred within minutes of the peak output of that XRA flare at 20:58 UT (vs peak output of 21:01 UT) and with the major RSP and RBR output of the flare. This earthquake also occurred near local solar noon when SFE would have been most pronounced. As this earthquake occurred near local

solar noon in California, some enhanced seismicity in Baja and California related to this flare is likely in the next day. Initial parameters for this XRA Flare from SWPC are:

 

 

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

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

 

3840       2033   2108      2126   M7.2      (May 17, 2024)   1.0E-01  

 

An earthquake of M 5.8-5.9 occurred about 200 km south of today's epicenter on May 12, 2024. At the time this summary noted:

 

 

"An earthquake of M 5.9 also occurred in the southern Kermadec Islands of New Zealand today. It was not reported felt in this region. Te last earthquake of M>=5.9 in the Kermadec Islands was an M 6.1 on February 9, 2024. Today's activity in the Kermadec Islands was anticipated in this summary because the region was near local solar noon at the time of the X5.8 flare of May 11.

At the time this summary noted:

 

"Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

When an M 5.4 foreshock to today's event in the Kermadec Islands occurred northeast of today's epicenter on May 12, this summary noted it as:

 

"The strongest earthquake in the world today was an M 5.4 in the Kermadec Islands, New Zealand. This epicenter was near local solar noon when the X5.8 flare occurred earlier in the day and was probably promoted by SFE and geomagnetic stresses. In the previous issue of this summary the Kermadec Islands had been pointed to as a possible area of interest in the current geomagnetic storm

 

...

 

While a similar M 5.4-5.5 quake hit the Kermadec Islands on April 25, 2024 the last of significantly larger magnitude in this area was an 6.1 on February 9, 2024" (May 12, 2024). A great earthquake of M 8.1 hit within about 100 km of today's epicenter in the Kermadec Islands on March 4, 2021. Today's event may be an aftershock of that great quake..

 

Forecast 163097 had expected today's event within about 50 km was likely to occur in mid-May, 2024.

 

O: 17MAY2024 20:58:26  29.5S  178.3W MW=5.8  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P: 12MAY2024 163097    29.0S  178.0W 4.0-5.7 BAAAA  No. Kermadec Islands       

 

A moderately strong earthquake of M 5.5 also occurred today south of the Philippines in the Celebes Sea. The last earthquake in the Celebes Sea with M>=5.6 was an M 6.1 about 150 km east of this epicenter on April 10, 2021 however an M 5.7 was recorded about 250 km from today's epicenter on November 15, 2023. At the time of the M 6.1 on April 10, 2021 this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.0-6.1 off the north coast of New Guinea. NEIC reported it was felt in Papua New Guinea with intensity II-III at Madang and Mount Hagen.

 

...

 

This epicenter is near the geomagnetic equator and like similar events in the  Celebes Sea and in Java today may have been prompted by the now-concluded strong geomagnetic storm previously identified in this summary

 

...

 

The only events within about 200 km of today's epicenter within the past three years occurred as an M 6.3 on February 7, 2021 and an M 6.2 on January 17, 2019." (April 10, 2021)

 

Today's event in the Celebes Sea occurred on the geomagnetic equator following the strongest geomagnetic storm since October, 2003 and was probably promoted by effects from that storm as expected in previous issues of this summary for example as:

 

"It is likely that a major earthquake will occur in the next 10 days most likely in the regions near the geomagnetic equator and/or at high auroral latitudes. Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

 

Forecasts 162865 and 162592 had expected enhanced seismicity along the geomagnetic equator within about 10 km of today's epicenter was likely in mid-May.

 

 

 

O: 18MAY2024 06:26:09   3.9N  123.0E MW=5.5  EMSC   CELEBES SEA                  

P: 10MAY2024 162592     4.0N  123.0E 4.0-5.4 CAAAA  Mindanao, Philippines      

P: 16MAY2024 162865     5.0N  124.0E 4.0-5.4 ABAAA  Mindanao, Philippines      

 

The strongest earthquake in the U.S. or Canada today was an M 4.3 in the Rat Islands, Aleutians, Alaska. It was not reported felt in this remote area. It is near the same longitude as the M 5.8 in the Kermadec Islands (see above). An earthquake of M 4.6 hit the Andreanof Islands east of this in the Andreanof Islands yesterday. At the time this summary noted:

 

 

"The strongest earthquake in the U.S. or Canada today was an M 4.6 in the

Andreanof Islands, Alaska. It was not reported felt in this remote epicentral area. An earthquake of M 4.9 occurred in the Andreanof Islands about 200 km east of today's epicenter on May 11, 2024 ...

 

"It is likely that a major earthquake will occur in the next 10 days most likely in the regions near the geomagnetic equator and/or at high auroral latitudes. Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

Further moderate to strong seismic enhancement is likely in the Aleutians and the Kermadec Islands in the next several days." (May 17, 2024)

 

Forecast 163047 had expected today's event within about 50 km was likely around

May 17.

 

O: 17MAY2024 18:54:35  51.7N  179.5E ML=4.3  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 19MAY2024 163047    51.6N  180.0E 3.5-5.2 AAAAA  Andreanoff Isls, Aleutians 

 

The current enhanced seismicity in the South Atlantic Geomagnetic Anomaly continued today with an M 4.9 in the Southern Mid-Atlantic Ridge and an M 4.8  in the area of Tristan da Cunha. This is the strongest earthquake within about 200 km of this epicenter since an M 5.3 on December 15, 2023. At the time this summary noted:

 

 

"A series of three moderate to large earthquakes occurred in the area of the South Atlantic today in the general area of Tristan da Cunha. These events of M 6.0, 5.3 and 5.3 occurred in an area where tidal stresses with the new moon were strong and may have been promoted from tidal stresses. They also occurred at a maximum of the current geomagnetic storm (Kp was 6 at high latitudes at 20:00 UT today). This area is often considered the third geomagnetic pole of the earth in an area called the "South Atlantic Anomaly" where the geomagnetic field behaves in unusual ways. Planes and satellites experience geomagnetic anomalies in this area and often must be routed around the area to avoid complications from mal-functioning instruments and/or sudden changes in orbital altitude due to geomagnetic field changes and accompanying ionospheric density changes.

 

...

 

The last earthquake in the region of Tristan da Cunha with M>=6 occurred as a M 7.0 on June 17, 2015 and prior to that as an M 6.5 on February 16, 2005." (December 15, 2023)

 

In the previous issue of this summary this regional activation had been noted as:

 

"Unusual seismicity also continued today near the South Atlantic geomagnetic anomaly. An M 4.9 near the center of this anomaly occurred today in the southern Mid-Atlantic Ridge. This is the strongest earthquake within about 300 km of this epicenter since an M 5.0 on December 15, 2023. The last earthquake in this area with significantly larger magnitude was an M 5.5 on March 3, 2023 about 200 km north of today's epicenter. A similar event of M 5.3 occurred north of this on May 15, 2024" (May 17, 2024) and

 

O: 17MAY2024 07:00:36  32.3S   13.9W MB=4.9  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

O: 18MAY2024 04:18:31  35.1S   15.6W MB=4.8  EMSC   TRISTAN DA CUNHA REGION      

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: 17MAY2024 13:55:44  52.8N  159.5E mb=4.4  EMSC   OFF EAST COAST OF KAMCHATKA

O: 17MAY2024 21:55:41  52.7N  159.9E MB=4.0  EMSC   OFF EAST COAST OF KAMCHATKA  

P: 16MAY2024 163050    54.0N  160.0E 4.0-5.4 ABAAA  E. of Kamchatka            

 

EMSC reported these earthquakes of M 4.0 and M 4.4 in Kamchatka, Russia were felt with intensity up to III in the area(s) of  Kamchatka, Russia in Petropavlovsk-Kamchatsky.

 

INDONESIA AND PHILIPPINES

 

O: 17MAY2024 15:08:47   0.3S  123.0E ML=4.3  EMSC   SULAWESI, INDONESIA          

P: 14MAY2024 162864     0.0N  123.0E 4.0-5.8 BAAAA  Mindanao, Philippines      

 

O: 17MAY2024 15:25:05   0.5S  130.7E ML=4.1  EMSC   PAPUA REGION, INDONESIA      

P: 14MAY2024 162862     1.0N  128.0E 4.0-5.4 BBBAA  Halmahera                  

 

O: 18MAY2024 06:26:09   3.9N  123.0E MW=5.5  EMSC   CELEBES SEA                  

P: 10MAY2024 162592     4.0N  123.0E 4.0-5.4 CAAAA  Mindanao, Philippines      

P: 16MAY2024 162865     5.0N  124.0E 4.0-5.4 ABAAA  Mindanao, Philippines      

 

O: 17MAY2024 14:12:15   4.4N  126.3E ML=4.0  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 11MAY2024 162865     4.0N  126.0E 4.0-5.4 CAAAA  Mindanao, Philippines      

 

O: 18MAY2024 05:54:35   5.2S  142.3E MB=4.5  EMSC   NEW GUINEA, PAPUA NEW GUINEA 

P: 16MAY2024 162882     7.0S  144.0E 4.0-5.4 ABBAA  Papua New Guinea           

 

O: 17MAY2024 21:45:33   6.2N  126.8E MB=4.4  EMSC   MINDANAO, PHILIPPINES        

P: 13MAY2024 162863     6.0N  127.0E 4.0-5.6 BAAAA  Halmahera                  

 

O: 17MAY2024 12:28:02   8.0S  120.6E ML=4.2  EMSC   FLORES REGION, INDONESIA     

P: 14MAY2024 162873     8.0S  121.0E 4.0-5.6 BAAAA  Flores Island area         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 17MAY2024 20:10:16   3.3S   79.6W ML=4.0  EMSC   NEAR COAST OF ECUADOR        

P: 15MAY2024 162872     4.0S   80.0W 4.0-5.8 AAAAA  Ecuador                    

 

O: 17MAY2024 17:30:14  14.4N   93.0W ML=4.3  EMSC   OFFSHORE CHIAPAS, MEXICO     

O: 17MAY2024 13:56:12  14.6N   92.8W mb=4.7  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 18MAY2024 00:49:44  14.6N   93.3W ML=4.3  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 17MAY2024 22:37:59  14.9N   93.5W ML=4.2  EMSC   OFFSHORE CHIAPAS, MEXICO

P: 16MAY2024 162899    14.0N   92.0W 3.5-5.6 AAAAA  Guatemala                  

 

O: 17MAY2024 20:45:38  16.8N   94.3W ML=4.0  EMSC   OAXACA, MEXICO

O: 17MAY2024 13:04:31  16.7N   95.0W ML=4.1  EMSC   OAXACA, MEXICO                

P: 17MAY2024 162895    17.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 18MAY2024 02:09:27  19.3N   67.5W MD=3.2  EMSC   PUERTO RICO REGION           

O: 18MAY2024 05:00:55  18.8N   67.3W MD=3.2  EMSC   PUERTO RICO REGION

P: 18MAY2024 162922    20.0N   67.0W 3.0-4.7 AAAAA  Bahamas/No. Caribbean      

 

O: 17MAY2024 14:13:02  21.3S   66.6W ML=4.2  EMSC   POTOSI, BOLIVIA              

P: 11MAY2024 163093    21.0S   67.0W 4.0-5.4 CAAAA  Argentina                  

 

AFRICA AND EUROPE

 

O: 18MAY2024 02:36:44  26.4S   27.5E ML=3.0  EMSC   SOUTH AFRICA                 

P: 18MAY2024 163098    27.0S   27.0E 3.0-4.9 AAAAA  Rep. South Africa          

 

EMSC reported this earthquake of M 3.0 in South Africa was heard and felt with intensity up to III in the area(s) of  Mogale City, South Africa.

 

O: 18MAY2024 04:30:55  40.8N   14.1E MD=3.7  EMSC   SOUTHERN ITALY               

P: 15MAY2024 163012    41.0N   15.0E 3.0-5.1 BAAAA  Italy                      

 

O: 17MAY2024 21:34:47  73.9N    9.3E MB=4.0  EMSC   GREENLAND SEA                

P: 12MAY2024 163079    74.0N   14.0E 3.0-4.4 BAAAA  Norway                     

 

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

 

SOUTHWEST PACIFIC

 

O: 17MAY2024 21:46:48  11.0S  162.3E MB=4.7  EMSC   SOLOMON ISLANDS              

P: 16MAY2024 163082    10.0S  160.0E 4.0-5.7 AABAA  No. of Santa Cruz Islands  

 

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

 

OCEAN RIDGES

 

O: 18MAY2024 03:06:55  14.5S   94.9E MB=5.1  EMSC   SOUTH INDIAN OCEAN           

 

O: 17MAY2024 07:00:36  32.3S   13.9W MB=4.9  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

 

O: 18MAY2024 04:18:31  35.1S   15.6W MB=4.8  EMSC   TRISTAN DA CUNHA REGION      

 

O: 18MAY2024 01:41:48  59.8S   26.1W MB=5.0  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 16MAY2024 163126    61.0S   26.0W 4.0-5.9 ABAAA  Southern  Ocean            

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 17MAY2024 20:58:26  29.5S  178.3W MW=5.8  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P: 12MAY2024 163097    29.0S  178.0W 4.0-5.7 BAAAA  No. Kermadec Islands       

 

O: 17MAY2024 09:04:14  41.0S  175.6E ML=4.0  EMSC   NORTH ISLAND OF NEW ZEALAND  

O: 17MAY2024 09:04:14  41.0S  175.5E MS=4.0  GEONET North Island, New Zealand

P: 13MAY2024 163120    41.0S  175.0E 3.0-4.9 BAAAA  So. Island, N.Z.           

 

EMSC reported this earthquake of M 4.0 in North Island, New Zealand was felt with intensity up to III in the area(s) of  North Island, New Zealand in Solway as a sudden jolt - the strongest felt in the region in several months.

GEONET reported this earthquake was felt with moderate to strong intensity in the area of Masterton, New Zealand and in southern North Island and northern South Island. 3706 reports of felt events were made of which 2341 reported weak and 1247 light intensity with 110 report of moderate shaking and 9 with strong and 2 severe and 6 with extreme intensity came from the area.

 

JAPAN AND KURIL ISLANDS

 

O: 18MAY2024 00:55:48  35.8N  140.8E MB=4.5  EMSC   NEAR EAST COAST OF HONSHU,   

P: 18MAY2024 162971    35.0N  140.0E 4.0-5.4 AAAAA  Off East Coast Honshu      

 

NEIC reported this earthquake of M 4.5 in Honshu, Japan was felt with intensity up to III in the area(s) of  Honshu, Japan in Hasaki.

EMSC reported light to moderate shaking in the Tokyo and Miyamae areas of Japan.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 17MAY2024 21:44:45  28.0N  112.2W ML=3.7  EMSC   GULF OF CALIFORNIA           

P: 14MAY2024 162925    28.0N  112.0W 3.5-5.3 BAAAA  Gulf of California         

 

O: 17MAY2024 19:55:32  29.3N  113.4W ML=3.8  EMSC   IS. ANGEL DE LA GUARDA, BC, ME

P:  7MAY2024 162655    29.0N  113.0W 3.5-5.2 CAAAA  Gulf of California         

 

O: 17MAY2024 20:41:39  31.2N  115.9W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO      

P: 19MAY2024 162979    32.4N  115.8W 2.5-4.6 ABAAA  So. California             

 

O: 18MAY2024 06:14:38  34.6N  118.6W ML=2.3  EMSC   SOUTHERN CALIFORNIA          

P: 13MAY2024 162983    34.9N  119.0W 2.5-4.4 BAAAA  So. California              

 

 

O: 17MAY2024 18:16:14  37.8N  122.2W MD=2.4  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 17MAY2024 18:16:14  37.8N  122.2W MD=2.4  ANSS   SAN LEANDRO CA               

P: 12MAY2024 162949    37.8N  122.0W 2.5-4.5 BAAAA  Central California          

 

EMSC reported an earthquake of M 2.4 in the San Francisco Bay area of California was felt with intensity up to III in the area(s) of  the San Francisco Bay area of California at Oakland as a big, quick shake. 

 

ALASKA

 

O: 17MAY2024 18:54:35  51.7N  179.5E ML=4.3  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 19MAY2024 163047    51.6N  180.0E 3.5-5.2 AAAAA  Andreanoff Isls, Aleutians 

 

O: 17MAY2024 15:03:35  54.9N  163.8W ML=3.7  EMSC   UNIMAK ISLAND REGION, ALASKA 

P: 16MAY2024 163063    54.1N  164.4W 3.5-4.9 AAAAA  Unimak Islands, Aleutians  

 

O: 17MAY2024 07:18:42  61.0N  151.9W ML=3.0  EMSC   KENAI PENINSULA, ALASKA      

P: 19MAY2024 163068    60.7N  151.8W 3.2-4.9 AAAAA  Central Alaska             

 

NEIC reported this earthquake of M 3.0 in Southern Alaska was felt with intensity up to III in the area(s) of  Southern Alaska in Tyonek.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

NEIC reported an earthquake of M 2.7 off the coast of Oregon was felt with intensity up to III in the area(s) of  Oregon in Bandon.

 

ROCKY MOUNTAINS REGION

 

O: 18MAY2024 01:29:44  31.6N  104.0W ML=2.0  EMSC   WESTERN TEXAS

O: 18MAY2024 01:43:20  31.6N  104.6W ML=2.8  EMSC   WESTERN TEXAS                

P: 14MAY2024 162977    31.4N  104.3W 2.0-4.2 BAAAA  SW U.S.A                    

P: 17MAY2024 162977    31.4N  103.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 17MAY2024 09:05:24  35.9N  102.4W ML=2.5  EMSC   TEXAS PANHANDLE REGION       

P: 12MAY2024 162976    35.4N  101.8W 2.0-4.2 AAAAA  SW U.S.A                    

 

O: 17MAY2024 11:25:51  46.0N  111.1W ML=2.5  EMSC   WESTERN MONTANA              

P: 18MAY2024 163043    43.0N  111.5W 2.0-3.9 ACAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 18MAY2024 03:54:10  35.5N   96.8W ML=2.0  EMSC   OKLAHOMA                      

P: 16MAY2024 162993    36.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

 

O: 17MAY2024 06:48:53  47.4N   70.2W MB=0.9  ECAN OF LA POCATI├¿RE, QC           

P: 17MAY2024 163016    47.0N   70.0W 2.0-3.9 AAAAA  Maine                       

 

O: 16MAY2024 14:23:53  48.8N   59.2W MB=1.8  ECAN OF CAPE ST. GEORGE, NL         

 

HAWAII

 

O: 18MAY2024 03:51:14  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 18MAY2024 02:22:29  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII      

 

 

SOLAR FLARES CONTINUE TO AFFECT GLOBAL SEISMICITY

 

EARTHQUAKE SUMMARY FOR MAY 16, 2024

 

The strongest earthquake in the U.S. or Canada today was an M 4.6 in the

Andreanof Islands, Alaska. It was not reported felt in this remote epicentral area. An earthquake of M 4.9 occurred in the Andreanof Islands about 200 km east of today's epicenter on May 11, 2024 but the last with M>=4.6 within 200 km  was an M 4.7 on December 20, 2023. The last such event of M>4.7 was an M 5.3 on June 13, 2023. This epicenter is at a high latitude and at a longitude which was sub-solar when several X-class flares have occurred in the past week including an X5.8 on May 11, 2024. At the time of this flare this summary noted its likely effect on Alaskan seismicity as:

 

"A major solar flare occurred today with X5.8. Following is the data from

SWPC for this flare:

 

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

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

 

1680       0110   0123      0139   X5.8      (May 11, 2024)   6.4E-01  

 

It was followed at the end of the flare by an M 4.6 earthquake in Southern Alaska. This earthquake was reported by EMSC to have been felt with light to moderate intensity in Southern Alaska at Anchor Point and Anchorage.

 

This event occurred near local noon in Alaska and was probably triggered by SFE from this X5.8 flare. NEIC reported this earthquake in Southern Alaska was felt with intensity up to IV in Anchor Point, Alaska. The last earthquake in Southern Alaska within about 200 km of this epicenter with M>=4.6 occurred on December 16, 2023 also with M 4.6-4.7. The last such event in the area of significantly larger magnitude was an M 5.0 on July 28, 2023." (May 11, 2024)

 

and

 

"The strongest earthquake in the world today was an M 5.4 in the Kermadec Islands, New Zealand. This epicenter was near local solar noon when the X5.8 flare occurred earlier in the day and was probably promoted by SFE and geomagnetic stresses. In the previous issue of this summary the Kermadec Islands had been pointed to as a possible area of interest in the current geomagnetic storm as:

 

"It is likely that a major earthquake will occur in the next 10 days most likely in the regions near the geomagnetic equator and/or at high auroral latitudes. Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

Further moderate to strong seismic enhancement is likely in the Aleutians and the Kermadec Islands in the next several days. Forecast 163047 had expected today's event within about 50 km was likely around May 17.

 

O: 16MAY2024 15:22:24  51.3N  179.1W MB=4.6  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 17MAY2024 163047    51.2N  179.9W 3.5-5.2 AAAAA  Andreanoff Isls, Aleutians 

 

The strongest earthquake in the world today also occurred near the International Date Line (IDL). This was an M 5.4 in the Fiji Islands. It was not reported felt in this remote area. Forecast 163102 had expected this event was likely around May 19, 2024.

 

O: 16MAY2024 07:29:20  20.6S  178.6W MW=5.4  EMSC   FIJI REGION                  

P: 19MAY2024 163102    20.0S  176.0W 4.0-5.8 BABAA  Tonga Islands              

 

An event of M 5.4 also occurred on the geomagnetic equator today in the area of New Ireland. This event was summarized in the previous issue of this summary as:

 

"As the geomagnetic storm reduced in intensity today, moderately enhanced seismicity began to appear along the geomagnetic equator. Most notably this occurred in New Guinea in the area of New Ireland with the strongest earthquake of the day and in eastern New Guinea with an M 5.2 three hours earlier. This is the type of seismicity which can be expected several days following major geomagnetic storms. The M 5.4 in New Ireland since an M 5.5 on November 18, 2023 - an aftershock of an M 5.9 and M 6.1 on November, 12 and 13, 2023. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.1 in Papua New Guinea. NEIC reported it was felt with intensity IV in Rabaul, PNG. This occurred within about 1.5 hours of the new moon and may have been promoted by tidal stresses with that alignment (see above). It continues strong sequence of moderate earthquakes in the region

 

...

 

The last earthquake of M>=6 in the New Ireland region within about 250 km of today's epicenter was an M 6.3 on November 30, 2021." (November 11, 13, 2023, March 7, 2023)

 

 

NEIC reported this earthquake of M 5.4 in New Guinea was felt with intensity up to IV in the area(s) of  New Guinea at Rabaul." (May 16, 2024)

 

Forecasts 162878 and 162876 had expected enhanced seismicity in the region of New Ireland and New Britain was likely in mid-May.

 

O: 16MAY2024 06:31:37   3.8S  151.6E MW=5.4  EMSC   NEW IRELAND REGION, P.N.G.   

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 BCAAA  New Ireland                

P: 17MAY2024 162876     5.0S  153.0E 4.0-5.4 ABBAA  New Britain                

 

An unusual earthquake of M 3.8 also occurred today in the region of Tennessee.

NEIC reported this earthquake of M 3.9 in Tennessee was felt with intensity up to V in the area(s) of  Tennessee in Ridgely. The last earthquake in Tennessee with M>=3.8 within about 100 km of this epicenter occurred on April 2, 2015 with M 4.0.  This epicenter was directly under the path of the total solar eclipse of April 8, 2024 and has been suggested in this summary to have been provoked by tidal stresses with that eclipse as:

 

"An M 2.8 was also recorded on April 12, 2024 in the New Madrid region of

Missouri.  NEIC reported this earthquake of M 2.8 in Missouri was felt with intensity up to III in the area(s) of  Missouri in Risco.  The total eclipse was seen at this epicenter at 19:00 UT on April 8 lasting 4 minutes and 11 seconds. This is a seismic area but the last earthquake of M>=2.8 in this area south of Saint Louis, Missouri within about 100 km of today's epicenter occurred as an M 3.3  half a year ago on December 21, 2023. More such activity is likely in the New Madrid, Missouri, area in the next week." (April 12, 2024)

 

Forecast 162963 had expected today's event was likely in Tennessee within about 50 km of today's epicenter around May 16.

 

O: 16MAY2024 08:19:34  36.2N   89.5W MW=3.8  EMSC   TENNESSEE                    

O: 16MAY2024 08:19:34  36.2N   89.5W mw=3.8  ANSS   km S of Ridgely

P: 16MAY2024 162963    36.0N   89.0W 2.0-4.0 AAAAA  New Madrid area            

 

Moderate earthquakes also continued near the east coast of Honshu, Japan today with events including an M 4.6 and 3.7 felt in the area today. These are not unusual events but the area of Honshu, Japan has been discussed in previous issues of this summary as showing strong seismic sensitivity to major solar X-class flares and geomagnetic storms especially in the region of today's events. Stronger seismic enhancement is still likely in this region as X-class flares continue at this time.

 

Forecasts 162990 and 162973 had expected today's events were likely in mid-May.

 

O: 16MAY2024 13:18:30  39.6N  142.1E ML=3.7  EMSC   NEAR EAST COAST OF HONSHU,   

P: 19MAY2024 162990    38.0N  145.0E 4.0-5.6 BBBAA  So. of Honshu              

 

O: 16MAY2024 16:15:27  37.5N  141.5E MB=4.6  EMSC   NEAR EAST COAST OF HONSHU,   

P: 16MAY2024 162973    37.0N  141.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

Unusual seismicity also continued today near the South Atlantic geomagnetic anomaly. An M 4.9 near the center of this anomaly occurred today in the southern Mid-Atlantic Ridge. This is the strongest earthquake within about 300 km of this epicenter since an M 5.0 on December 15, 2023. The last earthquake in this area with significantly larger magnitude was an M 5.5 on March 3, 2023 about 200 km north of today's epicenter. A similar event of M 5.3 occurred north of this on May 15, 2024 and was discussed in this summary as:

 

"Moderate sized earthquake of M 5.3 hit in the world's southern Oceans today.

An event occurred in the southern Mid-Atlantic Ocean. This epicenter is near the South Atlantic geomagnetic anomaly and was likely triggered by SFE from today's X-class solar include an X2.1 (#3210) that occurred earlier in the day while this epicenter was near solar noon, a time when SFE are most likely to enhance seismicity. The last earthquake within about 300 km of today's epicenter with M>=5.3 occurred about 250 km to the west of today's epicenter on November 12 and 13, 2021 with M 5.8 and 5.5. At the time this summary noted:

  

 

"The strongest earthquake recorded today was an M 5.7 in the Southern Mid-Atlantic Ridge near the geomagnetic equator. It was probably enhanced by the recent geomagnetic storm and effects from tides as it occurred within  minutes of local solar midnight, a time when such tidal stresses maximize. This is the strongest earthquake within about 300 km of this epicenter in at least 30 years. A series of three events of M 5.7 hit the area about 300 km south of this in 2013, 2010 and 1999." (November 12, 2021)

 

O: 17MAY2024 07:00:36  32.3S   13.9W MB=4.9  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

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: 16MAY2024 07:56:09  39.2N   97.3E MB=4.1  EMSC   GANSU, CHINA                 

P: 18MAY2024 163003    35.0N   93.0E 3.8-5.2 ACCAA  Xizang                     

 

O: 16MAY2024 14:46:24  24.2N  121.7E ML=4.4  EMSC   TAIWAN

O: 17MAY2024 03:49:54  23.9N  121.7E MB=4.5  EMSC   TAIWAN                       

P: 17MAY2024 162936    24.0N  124.0E 4.0-5.4 AABAA  Taiwan                     

 

INDONESIA AND PHILIPPINES

 

O: 17MAY2024 00:20:58   3.4S  102.0E ML=4.1  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 16MAY2024 162884     2.0S  101.0E 4.0-5.4 ABAAA  So. of Sumatera            

 

BMG  reported this earthquake of M 5.4 in Sumatra  was felt with intensity up to II in the area(s) of Indonesia in Kota, Jakarta, Tangerang, Serang, Bima, Tapin, Polewali and I in Kabs Acejh Besar, Ogan Komering, Timur, Lampung.

 

O: 16MAY2024 17:44:31   4.5S  102.2E ML=4.0  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 11MAY2024 162884     4.0S  102.0E 4.0-5.6 BAAAA  So. of Sumatera            

 

O: 16MAY2024 06:31:37   3.8S  151.6E MW=5.4  EMSC   NEW IRELAND REGION, P.N.G.   

P: 17MAY2024 162876     5.0S  153.0E 4.0-5.4 ABBAA  New Britain                

 

O: 16MAY2024 20:01:33   4.1S  127.5E ML=4.3  EMSC   BANDA SEA                    

P: 16MAY2024 162871     4.0S  128.0E 4.0-5.4 AAAAA  Ceram area                 

 

O: 16MAY2024 13:20:15   4.2S  142.7E MB=4.4  EMSC   NEW GUINEA, PAPUA NEW GUINEA 

P:  9MAY2024 162610     4.0S  143.0E 4.0-5.4 CAAAA  Papua New Guinea           

 

O: 16MAY2024 09:31:38   4.7S  139.5E ML=4.2  EMSC   PAPUA, INDONESIA             

P: 17MAY2024 162889     5.0S  138.0E 4.0-5.4 AABAA  West Irian, PNG            

 

O: 16MAY2024 18:22:53   8.1S  125.1E ML=4.1  EMSC   EAST TIMOR REGION            

P: 18MAY2024 162868     7.0S  126.0E 4.0-5.4 ABAAA  Banda Sea                  

 

 

CENTRAL AND SOUTH AMERICA

 

O: 16MAY2024 14:08:53   9.4S   79.0W ML=4.0  EMSC   OFF COAST OF NORTHERN PERU   

P: 13MAY2024 163080    10.0S   75.0W 3.5-5.4 BACAA  Brazil                     

 

O: 16MAY2024 10:25:02  14.8N   94.7W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 15MAY2024 162894    14.0N   94.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 16MAY2024 08:19:29  17.2N   95.2W ML=4.0  EMSC   OAXACA, MEXICO               

O: 17MAY2024 00:26:26  17.2N   95.5W ML=4.0  EMSC   OAXACA, MEXICO

P: 17MAY2024 162895    17.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 16MAY2024 16:44:18  18.2N   66.7W MD=3.9  EMSC   PUERTO RICO                  

P: 17MAY2024 162916    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

NEIC reported this earthquake of M 3.9 in Puerto Rico was felt with intensity up to III in the area(s) of  Puerto Rico in Utuado.

 

O: 17MAY2024 04:31:41  18.2N  100.0W ML=4.0  EMSC   GUERRERO, MEXICO             

P: 17MAY2024 162915    18.0N  100.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 17MAY2024 04:49:40  18.7N   65.2W MD=3.2  EMSC   PUERTO RICO REGION           

P: 17MAY2024 162901    18.0N   64.0W 3.0-5.4 AAAAA  Leeward Islands            

 

O: 16MAY2024 23:44:51  20.1N   70.5W ML=3.0  EMSC   DOMINICAN REPUBLIC REGION    

P: 15MAY2024 162922    20.0N   71.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 17MAY2024 01:47:33  36.3S   70.1W MB=4.1  EMSC   MENDOZA, ARGENTINA           

P: 17MAY2024 163112    37.0S   72.0W 4.0-5.9 AABAA  Central Chile              

 

O: 17MAY2024 05:40:00  32.6S   71.7W ML=4.1  EMSC   OFFSHORE VALPARAISO, CHILE   

P: 19MAY2024 163110    33.0S   70.0W 4.0-5.8 AABAA  Central Chile              

 

GUC  reported an earthquake of M 4.1 in Atacama, Chile was felt with intensity up to III in the area(s) of  La Serena.

 

AFRICA AND EUROPE

 

O: 16MAY2024 23:17:17  26.9S   26.8E ML=3.0  EMSC   SOUTH AFRICA                 

P: 18MAY2024 163098    27.0S   27.0E 3.0-4.9 AAAAA  Rep. South Africa          

 

O: 16MAY2024 08:07:48  38.3N   16.1E ML=3.0  EMSC   SOUTHERN ITALY               

P: 16MAY2024 162959    38.0N   15.0E 3.0-4.8 AAAAA  Mediterranean/Sicily       

 

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

 

SOUTHWEST PACIFIC

 

O: 16MAY2024 07:29:20  20.6S  178.6W MW=5.4  EMSC   FIJI REGION                  

P: 19MAY2024 163102    20.0S  176.0W 4.0-5.8 BABAA  Tonga Islands              

 

O: 16MAY2024 10:28:38  15.7S  177.5W MB=4.4  EMSC   FIJI REGION                   

P: 17MAY2024 163083    14.0S  177.0W 4.0-5.6 ABAAA  Samoa Islands              

 

OCEAN RIDGES

 

O: 17MAY2024 06:43:54  23.1S   69.8E MB=4.8  EMSC   MID-INDIAN RIDGE             

P: 19MAY2024 163101    28.0S   66.0E 4.0-5.5 ACCAA  So. Indian Ocean           

 

O: 17MAY2024 07:00:36  32.3S   13.9W MB=4.9  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

 

O: 16MAY2024 13:35:54  36.1S   99.8W MW=5.1  EMSC   SOUTHEAST OF EASTER ISLAND   

P: 17MAY2024 163113    36.0S   97.0W 4.0-5.7 AABAA  Chile Rise                  

 

O: 16MAY2024 10:10:53  77.1N    8.6E MB=4.6  EMSC   SVALBARD REGION              

P: 12MAY2024 163079    74.0N   14.0E 3.0-4.4 BCAAA  Norway                     

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today.

 

JAPAN AND KURIL ISLANDS

 

O: 17MAY2024 03:42:00  32.5N  140.6E MB=4.5  EMSC   IZU ISLANDS, JAPAN REGION    

P: 15MAY2024 162970    31.0N  141.0E 4.0-5.5 ABAAA  Off East Coast Honshu      

 

O: 16MAY2024 13:18:30  39.6N  142.1E ML=3.7  EMSC   NEAR EAST COAST OF HONSHU,   

P: 19MAY2024 162990    38.0N  145.0E 4.0-5.6 BBBAA  So. of Honshu              

 

O: 16MAY2024 16:15:27  37.5N  141.5E MB=4.6  EMSC   NEAR EAST COAST OF HONSHU,   

P: 16MAY2024 162973    37.0N  141.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 16MAY2024 18:07:09  31.8N  115.0W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO      

O: 16MAY2024 10:40:15  31.4N  114.4W ML=3.4  EMSC   GULF OF CALIFORNIA            

O: 16MAY2024 18:05:15  31.9N  114.9W ML=3.5  EMSC   SONORA, MEXICO               

P: 14MAY2024 162978    30.4N  114.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 17MAY2024 04:22:33  33.5N  116.7W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 16MAY2024 14:19:03  33.4N  116.4W ML=2.6  EMSC   SOUTHERN CALIFORNIA          

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 AAAAA  So. California             

 

O: 16MAY2024 16:58:08  34.1N  116.8W ML=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 13MAY2024 162985    34.6N  116.7W 2.5-4.4 BAAAA  So. California             

 

O: 16MAY2024 23:55:57  35.5N  120.9W MD=2.1  EMSC   CENTRAL CALIFORNIA           

P: 16MAY2024 162974    35.7N  121.2W 2.5-4.5 AAAAA  Off So. California         

 

O: 16MAY2024 19:33:30  35.9N  115.2W ML=2.0  EMSC   NEVADA                       

P: 19MAY2024 162985    34.9N  116.4W 2.5-4.4 BAAAA  So. California             

 

O: 16MAY2024 14:46:14  36.5N  121.1W MD=2.3  EMSC   CENTRAL CALIFORNIA           

O: 16MAY2024 20:47:24  36.8N  121.3W MD=2.1  EMSC   CENTRAL CALIFORNIA

P: 14MAY2024 162948    36.4N  121.0W 2.5-4.7 AAAAA  Central California         

 

O: 17MAY2024 03:03:45  38.8N  122.8W MD=2.8  EMSC   NORTHERN CALIFORNIA          

P: 14MAY2024 162950    38.9N  122.8W 2.5-4.8 BAAAA  Central California         

P: 17MAY2024 162950    39.3N  123.2W 2.5-4.8 AAAAA  Central California         

 

O: 16MAY2024 23:37:31  40.4N  125.5W ML=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 15MAY2024 163028    40.9N  126.3W 2.5-4.8 AAAAA  Off Coast of No. Calif     

 

 

ALASKA

 

O: 16MAY2024 15:22:24  51.3N  179.1W MB=4.6  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 17MAY2024 163047    51.2N  179.9W 3.5-5.2 AAAAA  Andreanoff Isls, Aleutians 

 

O: 16MAY2024 07:44:10  63.1N  150.8W ML=3.0  EMSC   CENTRAL ALASKA                

P: 18MAY2024 163069    61.3N  147.2W 3.2-5.1 ABBAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 16MAY2024 19:42:43  43.5N  126.6W ML=2.7  EMSC   OFF COAST OF OREGON          

P: 13MAY2024 163029    42.5N  126.8W 3.0-4.6 BAAAA  Off Coast of Oregon        

P: 17MAY2024 163029    42.1N  126.9W 3.0-4.4 ABAAA  Off Coast of Oregon        

 

ROCKY MOUNTAINS REGION

 

O: 16MAY2024 18:37:32  31.6N  104.5W ML=2.1  EMSC   WESTERN TEXAS                

P: 14MAY2024 162977    31.4N  104.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 16MAY2024 20:45:26  44.4N  116.1W ML=2.4  EMSC   SOUTHERN IDAHO               

P: 12MAY2024 163017    44.5N  116.2W 2.0-4.1 BAAAA  Montana/Idaho              

 

O: 16MAY2024 10:07:21  37.0N  104.9W ML=2.0  EMSC   COLORADO                     

P: 16MAY2024 162952    37.0N  105.2W 2.0-4.2 AAAAA  Colorado area              

 

EASTERN U.S./CANADA

 

O: 16MAY2024 08:19:34  36.2N   89.5W MW=3.8  EMSC   TENNESSEE                    

O: 16MAY2024 08:19:34  36.2N   89.5W mw=3.8  ANSS   km S of Ridgely

P: 16MAY2024 162963    36.0N   89.0W 2.0-4.0 AAAAA  New Madrid area            

P: 18MAY2024 162963    36.9N   89.2W 2.0-4.1 AAAAA  New Madrid area            

 

HAWAII

 

O: 16MAY2024 13:25:41  19.2N  155.6W ML=3.9  EMSC   ISLAND OF HAWAII, HAWAII     

 

NEIC reported this earthquake of M 3.8 in Hawaii was felt with intensity up to IV in the area(s) of  Hawaii in Pahala.

EMSC reported it at M 3.9 was felt with a rumbling in Ocean View.

 

 

EARTHQUAKES STRENGTHEN ALONG GEOMAGNETIC EQUATOR

 

EARTHQUAKE SUMMARY FOR MAY 15, 2024

 

As the geomagnetic storm reduced in intensity today, moderately enhanced seismicity began to appear along the geomagnetic equator. Most notably this occurred in New Guinea in the area of New Ireland with the strongest earthquake of the day and in eastern New Guinea with an M 5.2 three hours earlier. This is the type of seismicity which can be expected several days following major geomagnetic storms. The M 5.4 in New Ireland since an M 5.5 on November 18, 2023 - an aftershock of an M 5.9 and M 6.1 on November, 12 and 13, 2023. At the time

this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.1 in Papua New Guinea. NEIC reported it was felt with intensity IV in Rabaul, PNG. This occurred within about 1.5 hours of the new moon and may have been promoted by tidal stresses with that alignment (see above). It continues strong sequence of moderate earthquakes in the region

 

...

 

The last earthquake of M>=6 in the New Ireland region within about 250 km of today's epicenter was an M 6.3 on November 30, 2021." (November 11, 13, 2023, March 7, 2023)

 

 

NEIC reported this earthquake of M 5.4 in New Guinea was felt with intensity up to IV in the area(s) of  New Guinea at Rabaul.

 

Forecasts 162878 and 162876 had expected today's activity in the New Ireland area in mid-May.

 

O: 16MAY2024 06:31:37   3.8S  151.6E MW=5.4  EMSC   NEW IRELAND REGION, P.N.G.   

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 BCAAA  New Ireland                

P: 17MAY2024 162876     5.0S  153.0E 4.0-5.4 ABBAA  New Britain                

 

O: 16MAY2024 03:48:01   7.1S  148.4E MW=5.2  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 14MAY2024 162878     7.0S  150.0E 4.0-5.4 AABAA  New Ireland                 

 

A moderate earthquake of M 5.2 also occurred along the geomagnetic equator today

in Central Peru.  NEIC reported this earthquake of M 5.2 in Peru was felt with intensity up to III in the area(s) of  Peru at Santiago.

EMSC reported light shakiing in Chorrilos, Peru.

 

Forecast 163080 had expected this event was likely within about 50 km around

May 19.

 

O: 16MAY2024 05:13:55  14.4S   76.1W MW=5.2  EMSC   NEAR COAST OF CENTRAL PERU   

P: 19MAY2024 163080    14.0S   76.0W 4.0-5.6 BAAAA  Central Peru               

 

The strongest earthquake today in the U.S. or Canada was an M 4.1-4.3 in Central Alaska. NEIC reported this earthquake of M 4.3 in Central Alaska was felt with intensity up to V in the area(s) of  Central Alaska in Susitna North.  EMSC reported moderate shaking in Central Alaska at Willow and Eagle River. This earthquake occurred near local solar midnight shortly after an X3.4 solar flare and was probably promoted by SFE associated with flare #3160 (see flare list below). The last earthquake of M>=4.3 within about 150 km of today's epicenter was an 4.6 on February 23, 2024. At the time this summary noted:

 

 

"The strongest earthquakes in the U.S. or Canada today appear to have been

 triggered events in Alaska. An M 4.4 in Central Alaska was at a longitude at which the X6.3 solar flare occurred at local solar noon, a time when Solar Flare Effects (SFE) maximize." (February 23, 2024)

 

Forecast 162795 had expected seismic activity within this area would likely be enhanced around May 10.

 

O: 15MAY2024 11:16:36  62.3N  149.2W MW=4.1  EMSC   CENTRAL ALASKA               

O: 15MAY2024 11:16:36  62.3N  149.2W MW=4.3  ANSS   CENTRAL ALASKA               

O: 15MAY2024 16:58:28  63.5N  151.4W ML=3.4  EMSC   CENTRAL ALASKA               

P: 10MAY2024 162795    63.3N  147.5W 3.2-4.9 BAAAA  Central Alaska             

 

Moderate sized earthquake of M 5.3 hit in the world's southern Oceans today.

An even occurred in the southern Mid-Atlantic Ocean This epicenter is near the South Atlantic geomagnetic anomaly and was likely triggered by SFE from today's X-class solar include an X2.1 (#3210) that occurred earlier in the day while this epicenter was near solar noon, a time when SFE are most likely to enhance seismicity. The last earthquake within about 300 km of today's epicenter with M>=5.3 occurred about 250 km to the west of today's epicenter on November 12 and 13, 2021 with M 5.8 and 5.5. At the time this summary noted:

  

 

"The strongest earthquake recorded today was an M 5.7 in the Southern Mid-Atlantic Ridge near the geomagnetic equator. It was probably enhanced by the recent geomagnetic storm and effects from tides as it occurred within  minutes of local solar midnight, a time when such tidal stresses maximize. This is the strongest earthquake within about 300 km of this epicenter in at least 30 years. A series of three events of M 5.7 hit the area about 300 km south of this in 2013, 2010 and 1999." (November 12, 2021)

 

The last event within about 200 km of today's epicenter with M>=5.3 occurred as an M 5.4 on March 15, 2015, the only such event in the past 35 years in the region.

 

 

O: 15MAY2024 22:14:20  26.4S   11.4W MB=5.3  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

 

The other event in the southern oceans of M 5.3 - in the mid-Indian Ridge – was not reported felt in this remote area. This appears to be a regional aftershock of events of M 6.0 and M 5.7 on April 26 and April 21, 2024 respectively.

At that time this summary noted:

 

 

 

"The strongest earthquake in the world today was an M 6.0 in the South Indian Mid-ocean Ridge. Several moderate aftershocks followed the mainshock. The last earthquake of equal or greater magnitude within about 300 km of this epicenter in the Central mid-Indian Ridge occurred as an M 6.1 on April 12, 2020. The only early of significantly larger magnitude in this area in the past 35 years was an M 6.4 on October 4, 2013. ...

 

Today's epicenter is at the antipode of the path of the total solar eclipse of April 8, 2024 across North America near Missouri, Kansas and Oklahoma and may have been promoted by tidal energy associated with that eclipse and the full moon of April 23. A series of minor earthquakes have occurred along the eclipse Path in North America in the past two weeks. At least two other moderate earthquakes have also occurred at antipodal positions to the eclipse in the past 10 days - in the South Indian Ridge and south of Australia. Today's M 6.0 in the Indian Ocean is the strongest earthquake to date associated with the April 8 eclipse." (April 26, 2024)

 

 

Forecast 162846 had expected today's event within about 150 km was likely in early May, 2024.

 

O: 15MAY2024 20:38:38  36.8S   78.5E MW=5.3  EMSC   MID-INDIAN RIDGE             

P:  3MAY2024 162846    38.0S   79.0E 4.0-5.9 CBAAA  So. Indian Ocean           

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: 15MAY2024 19:30:14  33.5N   81.8E MB=4.2  EMSC   WESTERN XIZANG               

P: 15MAY2024 163001    30.0N   81.0E 3.8-5.4 ACAAA  Xizang                     

 

O: 15MAY2024 11:52:11  36.6N   71.1E MB=4.2  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 14MAY2024 162954    37.0N   71.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O: 15MAY2024 19:03:32  39.0N   70.9E MB=4.5  EMSC   TAJIKISTAN                   

P: 15MAY2024 162955    39.0N   71.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

INDONESIA AND PHILIPPINES

 

BMG  reported an earthquake of M 5.4 in Sumatra  was felt with intensity up to II in the area(s) of Indonesia in Kota, Jakarta, Tangerang, Serang, Bima, Tapin, Polewali and I in Kabs Acejh Besar, Ogan Komering, Timur, Lampung.

 

O: 15MAY2024 22:19:36   0.2S  123.4E ML=4.1  EMSC   SULAWESI, INDONESIA          

P: 14MAY2024 162864     0.0N  123.0E 4.0-5.8 AAAAA  Mindanao, Philippines      

 

O: 15MAY2024 12:30:44   1.6N  126.5E ML=4.0  EMSC   MOLUCCA SEA                  

P: 11MAY2024 162862     2.0N  127.0E 4.0-5.4 BAAAA  Halmahera                  

P: 14MAY2024 162862     1.0N  128.0E 4.0-5.4 AABAA  Halmahera                  

 

O: 15MAY2024 12:32:46   2.8S  139.4E ML=4.1  EMSC   NEAR N COAST OF PAPUA, INDONESIA

P: 14MAY2024 162882     2.0S  140.0E 4.0-5.4 AAAAA  Papua New Guinea           

 

O: 16MAY2024 02:36:04   3.6S  135.4E ML=4.8  EMSC   PAPUA, INDONESIA             

P: 15MAY2024 162888     3.0S  134.0E 4.0-5.4 AABAA  West Irian, PNG            

 

O: 16MAY2024 06:31:37   3.8S  151.6E MW=5.4  EMSC   NEW IRELAND REGION, P.N.G.   

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 BCAAA  New Ireland                

P: 17MAY2024 162876     5.0S  153.0E 4.0-5.4 ABBAA  New Britain                

 

O: 15MAY2024 09:42:55   5.6S  106.7E MB=4.9  EMSC   JAVA, INDONESIA              

P: 15MAY2024 162883     7.0S  107.0E 4.0-5.4 ABAAA  So. of Java                

 

O: 16MAY2024 03:48:01   7.1S  148.4E MW=5.2  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 14MAY2024 162878     7.0S  150.0E 4.0-5.4 AABAA  New Ireland                

 

O: 15MAY2024 10:06:49  17.5N  122.6E ML=4.1  EMSC   LUZON, PHILIPPINES           

P: 17MAY2024 162905    17.0N  120.0E 3.5-5.1 AABAA  Luzon, Philippines         

 

O: 16MAY2024 03:31:22  19.1N  121.2E ML=4.0  EMSC   BABUYAN ISL REGION, PHILIPPINE

P: 14MAY2024 162905    19.0N  120.0E 3.5-5.1 AAAAA  Luzon, Philippines         

 

O: 15MAY2024 22:41:47  20.7N  144.9E MB=4.5  EMSC   MAUG ISLANDS REG, N. MARIANA I

P: 13MAY2024 162937    20.0N  146.0E 4.0-5.4 AAAAA  Volcano Islands             

P: 14MAY2024 162937    21.0N  146.0E 4.0-5.4 AAAAA  Volcano Islands            

 

 

CENTRAL AND SOUTH AMERICA

 

O: 16MAY2024 05:13:55  14.4S   76.1W MW=5.2  EMSC   NEAR COAST OF CENTRAL PERU   

P: 19MAY2024 163080    14.0S   76.0W 4.0-5.6 BAAAA  Central Peru               

 

O: 15MAY2024 22:19:17  14.8N   97.4W ML=4.0  EMSC   OFF COAST OF OAXACA, MEXICO  

P: 13MAY2024 162914    15.0N   97.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 16MAY2024 02:39:09  14.5S   76.3W ML=4.4  EMSC   NEAR COAST OF CENTRAL PERU

O: 16MAY2024 05:02:47  14.5S   76.3W ML=4.3  EMSC   NEAR COAST OF CENTRAL PERU

O: 16MAY2024 05:55:39  14.5S   76.3W ML=4.0  EMSC   NEAR COAST OF CENTRAL PERU

O: 16MAY2024 03:30:22  15.2S   76.7W ML=4.0  EMSC   OFF COAST OF CENTRAL PERU    

P: 19MAY2024 163080    14.0S   76.0W 4.0-5.6 BBAAA  Central Peru               

 

O: 15MAY2024 21:39:45  15.7N   96.4W ML=4.3  EMSC   OAXACA, MEXICO               

P: 15MAY2024 162914    15.0N   96.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

EMSC reported this earthquake of M 4.3 in Oaxaca, Mexico was felt with intensity up to III in the area(s) of  Oaxaca, Mexico in Aguaje el Zapote.

 

O: 15MAY2024 19:35:25  14.6N   93.1W ML=4.3  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 15MAY2024 18:29:30  15.8N   94.8W ML=4.1  EMSC   OFFSHORE OAXACA, MEXICO      

P: 15MAY2024 162894    14.0N   94.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

P: 15MAY2024 162914    15.0N   96.0W 3.5-5.1 ABAAA  Oaxaca, Mexico             

 

O: 15MAY2024 19:03:30  19.3N   66.6W MD=3.4  EMSC   PUERTO RICO REGION

O: 15MAY2024 23:28:05  19.3N   67.4W MD=3.9  EMSC   PUERTO RICO REGION

O: 16MAY2024 03:02:46  19.4N   67.5W MD=3.7  EMSC   PUERTO RICO REGION

O: 15MAY2024 21:42:03  18.6N   66.8W MD=3.0  EMSC   PUERTO RICO REGION           

P: 17MAY2024 162916    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

EMSC reported this earthquake of M 3.9 in Puerto Rico was felt with intensity up to IV in the area(s) of Coto Laurel, Puerto Rico. 

 

O: 15MAY2024 11:19:36  19.5N   70.3W ML=3.0  EMSC   DOMINICAN REPUBLIC           

P: 15MAY2024 162922    20.0N   71.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 15MAY2024 18:41:11  20.0N   73.8W ML=3.1  EMSC   HAITI REGION                 

P:  6MAY2024 162651    20.0N   73.0W 3.0-4.6 CAAAA  Bahamas/No. Caribbean      

P: 15MAY2024 162922    20.0N   71.0W 3.0-4.6 AACAA  Bahamas/No. Caribbean      

 

O: 16MAY2024 02:27:25  23.7S   69.5W MB=4.3  EMSC   ANTOFAGASTA, CHILE           

P: 16MAY2024 163095    24.0S   69.0W 4.0-5.8 AAAAA  Coast No. Chile             

 

EMSC reported this earthquake of M 4.1 in Northern Chile was felt with intensity up to III in the area(s) of  northern Chile in Antofagasta.

 

O: 16MAY2024 05:25:07  23.9S   67.5W ML=3.1  EMSC   ANTOFAGASTA, CHILE           

P: 15MAY2024 163093    23.0S   67.0W 4.0-5.4 AAAAA  Argentina                  

 

O: 16MAY2024 04:18:06  28.0S   69.5W MB=4.4  EMSC   ATACAMA, CHILE               

P: 15MAY2024 163094    28.0S   67.0W 4.0-5.4 AABAA  Argentina                  

 

GUC  reported this earthquake of M 4.1 in Atacama, Chile was felt with intensity up to III in the area(s) of  La Serena.

 

 

AFRICA AND EUROPE

 

O: 15MAY2024 08:26:44  27.0S   26.9E ML=3.4  EMSC   SOUTH AFRICA                 

P: 18MAY2024 163098    27.0S   27.0E 3.0-4.9 BAAAA  Rep. South Africa          

 

NEIC reported this earthquake of M 3.5 in South Africa was felt with intensity up to IV in the area(s) of  South Africa in Stilfontein.

EMSC reported light to moderate shaking in South Africa at City of Matlosana and Klerksdorp.

 

O: 16MAY2024 04:01:48  63.4N   24.1W ML=3.5  EMSC   ICELAND REGION               

P: 13MAY2024 163071    63.0N   23.0W 3.0-4.7 BAAAA  Iceland area               

 

O: 15MAY2024 12:42:45  34.5N   26.4E MB=4.4  EMSC   CRETE, GREECE                

P: 13MAY2024 162938    35.0N   24.0E 3.0-4.5 AABAA  Aegean Sea                 

 

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

 

SOUTHWEST PACIFIC

 

O: 15MAY2024 21:32:26  23.8S  179.9W MB=4.4  EMSC   SOUTH OF FIJI ISLANDS        

P: 17MAY2024 163103    23.0S  180.0W 4.0-5.8 AAAAA  Tonga Islands              

 

 

NEIC reported an earthquake of M 5.3 in Tonga was felt with intensity up to III in the area(s) of  Tonga at Neiafu.

 

OCEAN RIDGES

 

O: 15MAY2024 20:38:38  36.8S   78.5E MW=5.3  EMSC   MID-INDIAN RIDGE             

P:  3MAY2024 162846    38.0S   79.0E 4.0-5.9 CBAAA  So. Indian Ocean           

 

O: 15MAY2024 22:14:20  26.4S   11.4W MB=5.3  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

 

O: 16MAY2024 00:54:58  59.6S   25.3W MB=4.9  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 16MAY2024 163126    61.0S   26.0W 4.0-5.9 ABAAA  Southern  Ocean            

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 15MAY2024 12:15:50  32.8S  179.5E ML=4.1  EMSC   SOUTH OF KERMADEC ISLANDS    

P:  9MAY2024 162843    31.0S  180.0E 4.0-5.4 CBAAA  So. Kermadec Islands       

 

GEONET reported this earthquake was felt with light  intensity in the area near Taupo. More than 1115 felt reports of which 616 were of weak shaking, 448 of light and 46 of moderate intensity  4 strong and 1 extreme were reported.

 

O: 14MAY2024 11:24:59  39.1S  176.4E ML=4.4  EMSC   NORTH ISLAND OF NEW ZEALAND

O: 14MAY2024 11:24:58  40.0S  176.4E MS=4.7  GEONET North Island, New Zealand

P: 16MAY2024 163116    39.0S  174.0E 3.0-4.4 AABAA  North Island, N.Z.         

 

NEIC reported this earthquake of M 4.4 in North Island, New Zealand was felt with intensity up to VI in the area(s) of  North Island, New Zealand in Bay View.

GEONET reported this earthquake of M 4.2 was felt with light  intensity in the area near Taupo. More than 43 reports of which 38 were of weak shakin, 4 of light and 1 of moderate intensity were reported.

GEONET reported the event of M 4.7 was felt with light  intensity in the area near Taupo. More than 1115 felt reports of which 616 were of weak shaking, 448 of light and 46 of moderate intensity  4 strong and 1 extreme were reported.

 

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: 15MAY2024 21:24:51  32.5N  115.5W ML=2.7  EMSC   BAJA CALIFORNIA, MEXICO      

O: 15MAY2024 07:09:11  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 AAAAA  So. California             

 

EMSC reported this earthquake of M 2.1 in Baja California was felt with intensity up to III in the area(s) of  Baja California in Brawley. 

 

O: 15MAY2024 13:59:40  37.4N  120.0W MD=2.5  EMSC   CENTRAL CALIFORNIA           

P: 17MAY2024 162945    38.8N  119.6W 2.5-4.8 ABAAA  California/Nevada area     

 

NEIC reported this earthquake of M 2.5 in Central California was felt with intensity up to III in the area(s) of  Central California in Mariposa.

 

O: 16MAY2024 01:43:50  39.4N  123.3W MD=2.1  EMSC   NORTHERN CALIFORNIA           

P: 17MAY2024 162950    39.3N  123.2W 2.5-4.8 AAAAA  Central California         

 

ALASKA

 

O: 15MAY2024 20:32:15  52.2N  170.5W ML=3.4  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 17MAY2024 163051    52.4N  169.4W 3.5-5.1 AAAAA  Fox Islands, Aleutians     

 

O: 16MAY2024 05:18:31  55.5N  155.7W ML=3.0  EMSC   SOUTH OF ALASKA              

P: 14MAY2024 163045    54.7N  156.9W 3.5-4.9 AAAAA  Alaska Peninsula           

 

O: 15MAY2024 08:01:30  59.5N  152.6W ML=3.8  EMSC   SOUTHERN ALASKA              

P: 12MAY2024 163068    60.2N  152.7W 3.2-4.9 BAAAA  Central Alaska             

 

NEIC reported this earthquake of M 3.8 in Southern Alaska was felt with intensity up to III in the area(s) of  Southern Alaska in Nanwalek.

EMSC reported light shaking in Alaska at Diamond Ridge.

 

O: 15MAY2024 11:16:36  62.3N  149.2W MW=4.1  EMSC   CENTRAL ALASKA               

O: 15MAY2024 16:58:28  63.5N  151.4W ML=3.4  EMSC   CENTRAL ALASKA               

P: 10MAY2024 162795    63.3N  147.5W 3.2-4.9 BAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 15MAY2024 15:30:16  45.8N  120.8W ML=2.0  EMSC   WASHINGTON                   

P: 14MAY2024 163032    45.3N  121.7W 2.0-4.1 AAAAA  Oregon state, U.S.         

 

O: 16MAY2024 04:34:01  56.7N  122.0W ML=3.6  EMSC   BRITISH COLUMBIA, CANADA     

P: 19MAY2024 163046    56.0N  120.0W 2.0-4.1 BABAA  Alberta                    

 

ROCKY MOUNTAINS REGION

 

O: 15MAY2024 21:03:12  31.6N  104.3W ML=2.3  EMSC   WESTERN TEXAS

O: 15MAY2024 08:50:47  31.6N  104.5W ML=2.7  EMSC   WESTERN TEXAS                

P: 14MAY2024 162977    31.4N  104.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 15MAY2024 22:56:11  32.8N  100.7W ML=3.2  EMSC   WESTERN TEXAS

O: 16MAY2024 02:46:42  32.8N  100.6W ML=2.7  EMSC   WESTERN TEXAS                

P: 15MAY2024 162977    31.4N  101.3W 2.0-4.2 ABAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 15MAY2024 15:14:20  29.0N   98.1W ML=3.0  EMSC   SOUTHERN TEXAS               

P: 16MAY2024 162931    28.0N   99.0W 3.0-4.4 AAAAA  Northern Mexico            

 

NEIC reported this earthquake of M 3.0 in Southern Texas was felt with intensity up to IV in the area(s) of  Southern Texas in Falls City.

 

O: 15MAY2024 12:20:48  45.7N   74.8W ML=3.0  EMSC   ONTARIO-QUEBEC BORD REG., CANA

O: 15MAY2024 12:20:48  45.7N   74.8W MB=3.2  ECAN OF HAWKESBURY, ON, FELT  

O: 15MAY2024 11:32:10  45.7N   74.2W MB=1.2  ECAN OF SAINT-COLOMBAN, QC   

P: 19MAY2024 163023    46.0N   74.0W 2.0-4.1 BAAAA  New York State             

 

EMSC reported this earthquake was felt lightly near Hawkesbury, Ontario, Canada.

NEIC reported this earthquake of M 2.7 in Quebec/Ontario Canada was felt with intensity up to III in the area(s) of  Quebec/Ontario Canada at L'Original.

Earthquakes Canada reported it was lightly felt in the epicentral area.

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

MODERATELY STRONG QUAKE IN PUERTO RICO TRIGGERED BY MAJOR SOLAR FLARE

 

EARTHQUAKE SUMMARY FOR MAY 14, 2024

 

The strongest earthquake in the U.S. Canada or posessions today was an M 5.6

in the area of Puerto Rico. NEIC reported it was felt with intensity V in Puerto Rico at San Antonio. A foreshock of M 3.4 occurred in Dominican Republic and was felt with intensity II in Punta Cana. EMSC reported this earthquake was felt with moderate to strong intensity in Puerto Rico at Aguadilla, Jobos, Isabela, Moca, Rincon, Hato Arriba, Anasco, Carreras, Arecibo, Mayaguez, Las Marias, Guanajibo, Maricao, Ciales, Rio Arriba Saliente, Jayuya, Dorado, Ponce, Canas, Villalba Arriba, Quinto, Bayamon, San Juan Antiguo, San Juan, Comerjo, Aguas Buenas,   and in the Dominican Republic at Punta Cana, Santa Domingo, and Puerto Plata at the time of the flare. The area of Puerto Rico where the M 5.6 occurred later in the day was at sub-solar conditions at the beginning of flare 3010  (sun directly overhead at local solar noon. This is the strongest flare observed on the sun  since an X9.3 on September 6, 2017. This sub-solar position at the time of this major flare suggests strongly that the flare directly triggered conditions at the Puerto Rico epicenter that led to the M 5.6 several hours later. Today's earthquake in Puerto is the largest in that region since an M 6.4 on January 7, 2020 about 200 km southeast of today's epicenter. The last of larger magnitude in northern Puerto within about 200 km of today's epicenter was an M 6.0 on September 24, 2019. An earthquake of M 5.0, the only such event of M>=5 in the past 3 years in Puerto Rico occurred on November 17, 2022. At the time of the M 6.0 in September, 2019 this summary noted:

 

 

 

"NEIC reported the mainshock (in 2019) was felt with maximum intensity V in Puerto Rico at San Antoniom Quebradillas, IV in Aguadilla, Isabela, Aguada, Rincon, Camuy, and Anasco and within about 200 km of the epicenter in the Puerto Rico trench. A series of moderate aftershocks including an M 5.0 and 4.4 were felt in a similar area. An aftershock of M 4.3 was felt in Puerto Rico with maximum intensity V in Camuy and Hatillo; IV in Isabela, Quebradillas, Aguada, Rincon and Mayaguez and II-III in Aguadilla, Moca and San Sebastian among others. The aftershocks suggest that the activity is not over and that the M 6.0 may not have used up the available seismic energy in the trench. It has been nearly 75 years since a strong tsunami hit in this area but such an event remains a possibility. Built structures could be vulnerable to a strong tsunami such as that in 1946. Thanks in large part to international and governmental efforts, the potential for a large tsunami in the area has been recognized and preparations for such an event have been made.

 

The last earthquake of M>=6.0 in the region of Puerto Rico was an M 6.4 on January 13, 2014 - the only such event in the region in the past 30 years. Strong or major earthquakes have been historically common in the region of Puerto Rico but not in recent years. The last such events prior to 2014 had occurred in June, 1989 and June 1948 with M 6.4 and 6.6. The last major event was an M 7.1 on August 3, 1961 and the last great tsunamigenic quake occurred on August 8, 1946." (September 24, 2019)

 

Forecasts 162916 and 162922 had expected today's activity in Puerto Rico was likely within about 100 km of this epicenter around May 17-18, 2024.

 

O: 15MAY2024 00:30:09  19.2N   67.5W ML=5.6  EMSC   PUERTO RICO REGION           

P: 17MAY2024 162916    18.0N   67.0W 3.4-5.3 ABAAA  Puerto Rico                

P: 18MAY2024 162922    20.0N   67.0W 3.0-4.7 BAAAA  Bahamas/No. Caribbean      

 

Other earthquakes which occurred near the beginning of Flare 3010 at near local solar noon occurred with M 4.4 in St. Lucia, Windward Islands and along the  Peru-Ecuador Border and were probably triggered by initial effects of  that flare which was near over head and subsolar in near Puerto Rico and St. Lucia when the flare occurred. The earthquake in St. Lucia is the largest within  about 200 km of this epicenter since an M 5.1 about 200 km east of today's epicenter on April 30, 2024. At the time this summary noted:

 

"A major M9.5 to X1.0 solar flare occurred late on April 30 and early on May 1, 2024. This flare caused widespread radio blackouts in the Pacific region.

The last solar flare of equal or greater energy was an X1.1 (#9360) on March 28, 2024 several days before the M 7.4 earthquake in Taiwan.

 

...

 

 

A moderate earthquake of M 5.1 occurred east of the Barbados today. NEIC reported it was felt lightly in Crane, Barbados. The last earthquake of M>=5.1 in Barbados occurred on November 28, 2023 also with M 5.1 but the last of larger magnitude was an M 5.5 on March 29, 2021" (April 30, 2024)

 

An earthquake of M 4.3 hit the St. Lucia the area on March 8, 2022 - the only such in  St. Lucia in the past 3 years..

 

Forecast 162900 had expected enhanced seismicity in this area was likely around

May 19.

 

O: 14MAY2024 16:54:55  14.0N   60.1W MW=4.4  EMSC   ST. LUCIA REGION, WINDWARD ISL

P: 19MAY2024 162900    16.0N   60.0W 3.0-5.1 BBAAA  Leeward Islands            

 

O: 14MAY2024 16:39:53   2.9S   77.8W ML=4.4  EMSC   PERU-ECUADOR BORDER REGION   

P:  6MAY2024 162599     2.0S   78.0W 4.0-5.6 CAAAA  Ecuador                    

P: 15MAY2024 162872     1.0S   78.0W 4.0-5.5 ABAAA  Ecuador                    

 

A moderately strong earthquake also occurred today in Papua New Guinea. NEIC reported it was felt with intensity up to IV in Kimbe, PNG. This earthquake occurred towards the end of flare 3010 and was likely promoted by SFE associated with that great Solar Flare. Preliminary data for this flare from SWPC follow:

 

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

#-------------------------------------------------------------------------------

 

3010       1640   1651      1728   X8.7      (May 14, 2024)   5.6E-01  

 

This is probably an aftershock of an M 6.5 in New Britain of April 14, 2024. A strong aftershock hit the region on May 1, 2024. At the time this summary noted the coincidence of this event with the X1.0 flare of late April 30. That flare occurred one day earlier while this region was near local solar noon and was probably promoted by SFE from that flare.

 

Forecast 162878 had expected enhanced seismicity in this area within about 100 km was likely around May 13-14.

 

 

O: 14MAY2024 17:15:49   5.6S  150.1E MW=5.6  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 AAAAA  New Ireland                

P: 14MAY2024 162878     7.0S  150.0E 4.0-5.4 ABAAA  New Ireland                

 

An M 5.4 and an aftershock of  M 5.1 occurred today on the Pacific-Antarctic Ridge. These followed strong flares and may have been promoted by SFE. Events at high latitudes are often associated with strong geomagnetic storms which are maximized in polar regions.

 

 

O: 14MAY2024 15:43:52  54.8S  129.5W mb=5.1  EMSC   PACIFIC-ANTARCTIC RIDGE

O: 14MAY2024 15:08:00  54.9S  129.2W MB=5.4  EMSC   PACIFIC-ANTARCTIC RIDGE      

 

An M 4.0 earthquake also occurred in northern California today. NEIC reported this earthquake of M 4.0 in Northern California was felt with intensity up to IV in the area(s) of  Northern California in Blue Lake. This earthquake occurred near local solar midnight and may have been promoted by strong tidal stresses combined with the strong geomagnetic storm of the past several days. Following is SWPC data for a moderately strong solar flare (3150) that was in progress when this earthquake in California occurred.

 

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

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

3150       0620   0625      0629   C5.7      (May 15, 2024)   2.5E-03      

 

The last earthquake of M>=4 in this region  of California was an M 4.3 on January 20, 2023 - an aftershock of an M 5.4 about 50 km south of today's epicenter. At the time this summary noted in this regard:

 

 

"The strongest earthquake in the U.S. or Canada outside Alaska today was an M 4.3 in Northern California. NEIC reported it was felt with maximum intensity V in Orick with IV in Orleans and Salyer, California. Intensity II-III was also felt in California at Trinidad, Hoopa, Blue Lake, McKinleyville, Willow Creek, Arcata, Bayside. This followed a similar event of M 3.6 which was felt in Northern California with intensity II-III in Trinidad, Hoopa, McKinleyville, Orick, Arcata, Eureka and Fortuna. This earthquake of M 4.3 occurred within minutes of local solar midnight and was probably triggered by strong tidal stresses with the new moon which maximize near this hour. The Foreshock of M 3.6 occurred within minutes of local solar noon and was also likely triggered by high tidal stresses.  This appears to be  a regional aftershock of the M 6.4 a month ago in Northern California about  100 km south of this epicenter. The last earthquake of M>=4.3 within northern California and within about 50 km of today's epicenter was an M 5.6 on February 13, 2012. At the time this summary noted in this regard:

 

 

"This is the strongest earthquake in this region of Northern California in

more than 22 years. The last earthquake within 200 km of larger size was and M 5.9 on February 4, 2010, an aftershock of the M 6.5 off the coast of Northern California which occurred on January 10, 2010. These, in turn were the largest events in this region of California since September 1993." (February 13, 2012, January 20, 2023)

 

Forecast 162959 had expected today's event within about 100 km was likely around May 13, 2024.

 

O: 14MAY2024 22:45:34  39.4N  123.3W ML=3.0  EMSC   NORTHERN CALIFORNIA          

O: 15MAY2024 06:39:03  40.8N  123.9W MW=3.9  EMSC   NORTHERN CALIFORNIA          

O: 15MAY2024 06:39:03  40.8N  123.9W MW=4.0  ANSS   NORTHERN CALIFORNIA          

P: 13MAY2024 162950    39.8N  123.5W 2.5-4.9 AAAAA  Central California         

 

A major solar flare also occurred May 15 at about 08:15 UT (X3.4). This follows a flare on May 14, 2024 from 16:40 UT to 17:30 UT (#3010). Today’s flare of X8.7 class apparently triggered an M 4.4 in Peru; an M 4.4 in Santa Lucia, Caribbean and an M 5.6 in New Britain while it was occurring. The areas of Peru and Santa

Lucia are near local solar noon - with the event in Santa Lucia sub-solar at the time of the flare. The area of Puerto Rico where an M 5.6 occurred later in the day was also at sub-solar conditions at the beginning of this flare (sun directly overhead at local solar noon. This is the strongest flare observed on the sun since an X9.3 on September 6, 2017. At the time this summary noted:

 

 

"An X9.3 solar flare occurred today near UT noon. This is the largest flare in the current solar cycle - at least 11 years and the eighth largest in the past 25 years. The last solar flare of X9.0 or higher class occurred as an X9.0 flare on December 5, 2006. The last flare of higher class occurred as an X17.0 on October 28, 2003; an X10 on October 29, 2003 and an X28.0 on November 4, 2003. Solar flares of this class can have unexpected effects on global seismicity. A similar X-flare occurred  in conjunction with the Loma Prieta earthquake of October, 1989 in California. One of the strongest solar flares in recent years occurred on March 11, 1989 with X20. This summary described the flare in October, 2003 as follows:

 

 

"A strong X-class flare occurred around 11:00 UT on October 28. This X18 solar flare is the strongest observed during the current solar cycle. A seismic watch has been declared" (October 28, 2003)

 

and

 

"An extreme event in the geomagnetic field occurred today as the CME from  yesterday's X17-X18 solar flare hit at about 06-07UT on October 29. This summary expects this to have strong repercussions on the seismicity of central Asia and North and South America. Seismic watches currently in effect for these areas have been extended through early November, 2003. The impact of this CME caused the Kp value to raise from quiet to extreme storm within a few minutes. This can have effects from causing strong free earth oscillations to major effects on communications and power grids. The resulting electrical disruptions in the ionosphere and in the earth can lead to triggered seismic activity." (October 29, 2003)

 

The effects of this and the coming geomagnetic storm was published in this summary before the X-class flares occurred in yesterday's issue as"

 

"The geomagnetic field is expected to see severe storm conditions for the next two days. This is associated with particles from a series of M-class solar flares over the past two days. Seismicity, delayed by several days, will probably see several strong events associated with these geomagnetic storms. This is emphasized in the "GEOMAGNETIC" section of this summary as:

 

"Triggering of strong seismicity from the severe geomagnetic storms  today and tomorrow is likely to be delayed due in part to proton storms which along with the electron influx will disrupt ring currents and induced telluric currents. This in turn, will probably dial down seismicity until the ring currents can reform around September 9-12.  Strong seismicity is likely to be promoted 10-15 degrees from the geomagnetic equator and at high auroral latitudes around September 10-13. This is most likely in areas near 90 East and West longitudes including Indonesia and Central America among others. This is a combined effect of weather, geomagnetic and tidal effects associated with the full moon." (September 5-6, 2017) (September 6, 2017)

 

This summary is compatible with the expected effects of today's X8.7 flare.

Preliminary data for today's flare from SWPC are:

 

 

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

#-------------------------------------------------------------------------------

 

3010       1640   1651      1728   X8.7      (May 14, 2024)   5.6E-01  

 

3160       0815   0832      0911   X3.4      (May 15, 2024)   4.0E-01      

3210       1420   1432      1523   X2.9      (May 15, 2024)   3.6E-01      

 

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: 14MAY2024 10:38:25  36.7N   71.2E mb=4.1  EMSC   HINDU KUSH REGION, AFGHANISTAN

O: 15MAY2024 02:56:52  36.3N   71.3E MB=4.2  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 14MAY2024 162954    37.0N   71.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O: 14MAY2024 15:02:20  52.5N  158.8E MB=4.4  EMSC   NEAR EAST COAST OF KAMCHATKA 

P: 12MAY2024 163052    52.0N  158.0E 4.0-5.7 AAAAA  Kamchatka                  

 

O: 14MAY2024 19:30:28  55.5N  166.4E MB=4.3  EMSC   KOMANDORSKIYE OSTROVA REGION 

P: 17MAY2024 163053    56.0N  166.0E 4.0-5.6 BAAAA  Komandorsky Isl            

 

O: 14MAY2024 17:42:27  56.5N  161.8E MB=3.9  EMSC   NEAR EAST COAST OF KAMCHATKA 

P: 14MAY2024 163053    56.0N  163.0E 4.0-6.1 AAAAA  Komandorsky Isl            

 

INDONESIA AND PHILIPPINES

 

O: 14MAY2024 13:41:31   2.5S  121.9E ML=4.3  EMSC   SULAWESI, INDONESIA          

P: 17MAY2024 162886     2.0S  123.0E 4.0-5.4 BAAAA  Sulawesi area              

 

O: 14MAY2024 11:55:38   4.3S  143.2E MB=4.5  EMSC   NEW GUINEA, PAPUA NEW GUINEA 

P: 12MAY2024 162877     4.0S  145.0E 4.0-5.4 AABAA  New Ireland                

 

O: 14MAY2024 17:15:49   5.6S  150.1E MW=5.6  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 AAAAA  New Ireland                

P: 14MAY2024 162878     7.0S  150.0E 4.0-5.4 ABAAA  New Ireland                

 

O: 14MAY2024 13:39:51   6.1N  126.6E ML=4.3  EMSC   MINDANAO, PHILIPPINES        

P: 13MAY2024 162863     6.0N  127.0E 4.0-5.6 AAAAA  Halmahera                  

 

O: 14MAY2024 09:54:18   6.2S  147.8E MB=4.5  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 20MAY2024 162877     6.0S  146.0E 4.0-5.4 CABAA  New Ireland                

 

O: 14MAY2024 08:11:12   8.4S  116.0E MB=5.1  EMSC   LOMBOK REGION, INDONESIA     

P: 20MAY2024 162887     8.0S  118.0E 4.0-5.4 CABAA  Sumbawa Island area        

 

 

BMG  reported an earthquake of M 5.4 in Sumatra  was felt with intensity up to II in the area(s) of Indonesia in Kota, Jakarta, Tangerang, Serang, Bima, Tapin, Polewali and I in Kabs Acejh Besar, Ogan Komering, Timur, Lampung.

NEIC reported this earthquake of M 5.1 in Timor, Indonesia was felt with intensity up to V in the area(s) of  Timor, Indonesia in Trawangan.

 

CENTRAL AND SOUTH AMERICA

 

O: 14MAY2024 14:25:07  17.5N  102.5W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 13MAY2024 162907    19.0N  102.0W 3.5-5.5 ABAAA  Michoacan, Mexico          

 

O: 14MAY2024 16:54:55  14.0N   60.1W MW=4.4  EMSC   ST. LUCIA REGION, WINDWARD ISL

P: 19MAY2024 162900    16.0N   60.0W 3.0-5.1 BBAAA  Leeward Islands            

 

O: 14MAY2024 07:14:45  15.7N   92.7W ML=4.1  EMSC   CHIAPAS, MEXICO              

P: 11MAY2024 162894    15.0N   93.0W 3.5-5.5 BAAAA  Chiapas, Mexico            

 

O: 14MAY2024 12:19:33  18.4N   72.8W ML=3.2  EMSC   HAITI REGION                 

P: 15MAY2024 162922    20.0N   71.0W 3.0-4.6 ABBAA  Bahamas/No. Caribbean      

 

O: 14MAY2024 16:39:53   2.9S   77.8W ML=4.4  EMSC   PERU-ECUADOR BORDER REGION   

P:  6MAY2024 162599     2.0S   78.0W 4.0-5.6 CAAAA  Ecuador                    

P: 15MAY2024 162872     1.0S   78.0W 4.0-5.5 ABAAA  Ecuador                    

 

O: 14MAY2024 21:22:23  18.6N   69.1W ML=3.7  EMSC   DOMINICAN REPUBLIC           

P: 13MAY2024 162917    18.0N   69.0W 3.4-4.9 AAAAA  Puerto Rico                

 

O: 14MAY2024 14:36:44  29.8S   71.3W ML=4.2  EMSC   COQUIMBO, CHILE              

P: 16MAY2024 163114    30.0S   70.0W 4.0-5.5 AAAAA  Coast Central Chile        

 

GUC  reported this earthquake of M 4.1 in Atacama, Chile was felt with intensity up to III in the area(s) of  La Serena.

 

O: 14MAY2024 13:45:05  22.5S   68.7W mb=4.3  EMSC   ANTOFAGASTA, CHILE

O: 15MAY2024 02:31:39  22.1S   68.7W MB=4.1  EMSC   ANTOFAGASTA, CHILE           

P: 17MAY2024 163095    21.0S   69.0W 4.0-5.8 ABAAA  Coast No. Chile            

 

O: 14MAY2024 20:39:00  18.2N   67.9W MD=3.4  EMSC   MONA PASSAGE, PUERTO RICO

O: 15MAY2024 00:30:09  19.2N   67.5W ML=5.6  EMSC   PUERTO RICO REGION           

P: 17MAY2024 162916    18.0N   67.0W 3.4-5.3 ABAAA  Puerto Rico                

P: 18MAY2024 162922    20.0N   67.0W 3.0-4.7 BAAAA  Bahamas/No. Caribbean      

 

AFRICA AND EUROPE

 

O: 15MAY2024 04:57:55  38.9N   26.0E MB=4.4  EMSC   NEAR THE COAST OF WESTERN    

P: 20MAY2024 162938    38.0N   27.0E 3.0-4.6 BAAAA  Aegean Sea                 

 

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

 

SOUTHWEST PACIFIC

 

O: 15MAY2024 01:18:24  15.0S  173.0W MB=4.5  EMSC   SAMOA ISLANDS REGION         

P: 15MAY2024 163088    16.0S  174.0W 4.0-5.4 AAAAA  Tonga Islands              

 

O: 14MAY2024 13:58:58  15.7S  167.7E MB=4.9  EMSC   VANUATU                      

P: 11MAY2024 163091    15.0S  167.0E 4.0-5.7 BAAAA  Vanuatu Islands            

P: 15MAY2024 163091    14.0S  168.0E 4.0-5.6 ABAAA  Vanuatu Islands            

 

O: 15MAY2024 06:46:00  18.3S  174.6W MB=5.3  EMSC   TONGA                        

P: 17MAY2024 163088    18.0S  173.0W 4.0-5.4 AABAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 14MAY2024 15:43:52  54.8S  129.5W mb=5.1  EMSC   PACIFIC-ANTARCTIC RIDGE

O: 14MAY2024 15:08:00  54.9S  129.2W MB=5.4  EMSC   PACIFIC-ANTARCTIC RIDGE      

 

NEIC reported this earthquake of M 5.4 in the Pacific-Antarctic Ridge was felt with intensity up to II in the epicentral area.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 15MAY2024 01:41:03  28.2S  177.3W MB=5.1  EMSC   KERMADEC ISLANDS REGION      

P: 14MAY2024 163097    28.0S  177.0W 4.0-5.8 AAAAA  No. Kermadec Islands       

 

O: 14MAY2024 08:50:58  38.5S  176.3E ML=3.9  EMSC   NORTH ISLAND OF NEW ZEALAND  

O: 14MAY2024 08:50:59  38.5S  176.2E MS=4.2  GEONET North Island, New Zealand

O: 14MAY2024 11:24:59  39.1S  176.4E ML=4.4  EMSC   NORTH ISLAND OF NEW ZEALAND

O: 14MAY2024 11:24:58  40.0S  176.4E MS=4.7  GEONET North Island, New Zealand

P: 15MAY2024 163115    37.0S  178.0E 3.0-4.9 ABBAA  North Island, N.Z.         

P: 16MAY2024 163116    39.0S  174.0E 3.0-4.4 AABAA  North Island, N.Z.         

 

 

NEIC reported this earthquake of M 4.4 in North Island, New Zealand was felt with intensity up to VI in the area(s) of  North Island, New Zealand in Bay View.

GEONET reported this earthquake of M 4.2 was felt with light  intensity in the area near Taupo. More than 43 reports of which 38 were of weak shakin, 4 of light and 1 of moderate intensity were reported.

GEONET reported the event of M 4.7 was felt with light  intensity in the area near Taupo. More than 1115 felt reports of which 616 were of weak shaking, 448 of light and 46 of moderate intensity  4 strong and 1 extreme were reported.

 

 

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: 14MAY2024 19:04:29  32.4N  115.2W ML=2.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 15MAY2024 01:16:05  32.4N  115.2W ML=2.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 14MAY2024 18:56:44  32.4N  115.3W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO      

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 AAAAA  So. California             

 

NEIC reported these earthquakes of M 3.3, 2.5 in Baja California were felt with intensity up to III in the area(s) of  Baja California in Delta.

 

O: 15MAY2024 04:49:51  33.0N  117.7W ML=2.1  EMSC   GULF OF SANTA CATALINA, CALIF.

P: 13MAY2024 162982    33.8N  117.7W 2.5-4.4 AAAAA  So. California             

 

O: 14MAY2024 12:34:36  36.2N  121.7W MD=2.1  EMSC   OFFSHORE CENTRAL CALIFORNIA  

P: 14MAY2024 162948    36.4N  121.0W 2.5-4.7 AAAAA  Central California         

 

O: 15MAY2024 02:03:40  36.7N  121.4W MD=2.2  EMSC   CENTRAL CALIFORNIA           

P: 14MAY2024 162948    36.4N  121.0W 2.5-4.7 AAAAA  Central California         

P: 18MAY2024 162948    36.8N  121.3W 2.5-4.6 BAAAA  Central California         

 

O: 14MAY2024 21:10:59  37.2N  122.4W MD=2.2  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 14MAY2024 162949    37.1N  121.9W 2.5-4.6 AAAAA  Central California         

 

O: 14MAY2024 12:12:06  37.4N  120.0W MD=2.2  EMSC   CENTRAL CALIFORNIA           

P: 13MAY2024 162945    38.3N  119.3W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 14MAY2024 22:45:34  39.4N  123.3W ML=3.0  EMSC   NORTHERN CALIFORNIA          

O: 15MAY2024 06:39:03  40.8N  123.9W MW=3.9  EMSC   NORTHERN CALIFORNIA          

P: 13MAY2024 162950    39.8N  123.5W 2.5-4.9 AAAAA  Central California         

 

NEIC reported this earthquake of M 3.1 in Northern California was felt with intensity up to III in the area(s) of  Northern California at Willits.

 

 

ALASKA

 

O: 14MAY2024 13:49:47  53.0N  170.1W MB=4.8  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 17MAY2024 163051    52.4N  169.4W 3.5-5.1 BAAAA  Fox Islands, Aleutians     

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 14MAY2024 16:36:12  45.9N  118.3W ML=2.1  EMSC   OREGON                       

P: 12MAY2024 163017    44.5N  116.2W 2.0-4.1 ABBAA  Montana/Idaho              

 

O: 14MAY2024 15:52:20  49.8N  123.6W MB=2.0  ECAN OF SQUAMISH, BC                

P: 17MAY2024 163042    49.0N  123.0W 2.0-4.1 BAAAA  Washington state, U.S.     

 

 

ROCKY MOUNTAINS REGION

 

O: 15MAY2024 00:14:06  31.6N  104.0W ML=2.5  EMSC   WESTERN TEXAS                 

P: 14MAY2024 162977    31.4N  104.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 15MAY2024 04:41:45  28.9N   98.1W ML=2.9  EMSC   SOUTHERN TEXAS

O: 14MAY2024 21:10:31  29.0N   98.1W ML=3.0  EMSC   SOUTHERN TEXAS

O: 14MAY2024 21:53:22  28.5N   98.7W ML=2.6  EMSC   SOUTHERN TEXAS               

P: 16MAY2024 162931    28.0N   99.0W 3.0-4.4 AAAAA  Northern Mexico            

 

NEIC reported these earthquakes of M 2.9, 2.6, 3.0 in Southern Texas were felt with intensity up to III in the area(s) of  Southern Texas in Falls City and Fowlerton.

 

O: 14MAY2024 18:36:03  35.8N   94.7W ML=2.0  EMSC   OKLAHOMA                     

P: 14MAY2024 162993    35.0N   96.0W 2.0-4.1 AAAAA  Southern Plains            

 

O: 14MAY2024 11:44:24  36.2N   89.4W MD=2.2  EMSC   TENNESSEE                    

P: 16MAY2024 162963    36.0N   89.0W 2.0-4.0 AAAAA  New Madrid area            

 

O: 13MAY2024 09:21:02  47.4N   70.5W MB=0.9  ECAN OF BAIE-SAINT-PAUL, QC         

P: 17MAY2024 163016    47.0N   70.0W 2.0-3.9 BAAAA  Maine                      

 

O: 13MAY2024 02:27:56  45.9N   74.6W MB=2.5  ECAN OF HUBERDEAU, QC               

P:  6MAY2024 162749    44.0N   74.0W 2.0-3.9 ABAAA  New York State             

P: 19MAY2024 163023    46.0N   74.0W 2.0-4.1 CAAAA  New York State             

 

O: 12MAY2024 20:37:43  70.8N   71.0W MB=3.1  ECAN OF CLYDE RIVER, NU             

P: 16MAY2024 163077    71.0N   75.0W 2.5-4.3 BAAAA  Baffin/Davis Strait Canada 

 

O: 12MAY2024 20:36:07  46.5N   65.7W MB=1.4  ECAN OF ROGERSVILLE, NB             

P: 17MAY2024 163009    46.0N   66.0W 2.0-4.0 BAAAA  E. of Maine                

 

O: 12MAY2024 16:02:17  49.2N   67.8W MB=1.1  ECAN OF FRANQUELIN, QC              

O: 12MAY2024 16:00:42  49.2N   67.8W MB=0.9  ECAN OF FRANQUELIN, QC              

P: 14MAY2024 163009    49.0N   66.0W 2.0-4.5 AABAA  E. of Maine                

P: 18MAY2024 163016    49.3N   67.5W 2.0-4.2 CAAAA  Maine                      

 

HAWAII

 

NEIC reported an earthquake of M 3.4-3.8 in Hawaii was felt with intensity up to IV in the area(s) of  Hawaii in Pahala.

 

 

MAJOR SOLAR FLARE LIKELY TO ENHANCE GLOBAL SEISMICITY

 

EARTHQUAKE SUMMARY FOR MAY 13, 2024

 

 

A major solar flare occurred today at 16:44 to 17:15 UT (May 14). This flare of X8.7 class apparently triggered an M 4.4 in Peru; an M 4.4 in Santa Lucia, Caribbean and an M 5.6 in New Britain while it was occurring. The areas of Peru and Santa Lucia are near local solar noon - with the event in Santa Lucia sub-solar at the time of the flare. This is the strongest flare observed on the sun  since an X9.3 on September 6, 2017. At the time this summary noted:

 

 

"An X9.3 solar flare occurred today near UT noon. This is the largest flare in the current solar cycle - at least 11 years and the eighth largest in the past 25 years. The last solar flare of X9.0 or higher class occurred as an X9.0 flare on December 5, 2006. The last flare of higher class occurred as an X17.0 on October 28, 2003; an X10 on October 29, 2003 and an X28.0 on November 4, 2003. Solar flares of this class can have unexpected effects on global seismicity. A similar X-flare occurred  in conjunction with the Loma Prieta earthquake of October, 1989 in California. One of the strongest solar flares in recent years occurred on March 11, 1989 with X20. This summary described the flare in October, 2003 as follows:

 

 

"A strong X-class flare occurred around 11:00 UT on October 28. This X18 solar flare is the strongest observed during the current solar cycle. A seismic watch has been declared" (October 28, 2003)

 

and

 

"An extreme event in the geomagnetic field occurred today as the CME from  yesterday's X17-X18 solar flare hit at about 06-07UT on October 29. This summary  expects this to have strong repercussions on the seismicity of central Asia and North and South America. Seismic watches currently in effect for these areas have been extended through early November, 2003. The impact of this CME caused the Kp value to raise from quiet to extreme storm within a few minutes. This can have effects from causing strong free earth oscillations to major effects on communications and power grids. The resulting electrical disruptions in the ionosphere and in the earth can lead to triggered seismic activity." (October 29, 2003)

 

The effects of this and the coming geomagnetic storm was published in this summary before the X-class flares occurred in yesterday's issue as"

 

"The geomagnetic field is expected to see severe storm conditions for the next two days. This is associated with particles from a series of M-class solar flares over the past two days. Seismicity, delayed by several days, will probably see several strong events associated with these geomagnetic storms. This is emphasized in the "GEOMAGNETIC" section of this summary as:

 

"Triggering of strong seismicity from the severe geomagnetic storms  today and tomorrow is likely to be delayed due in part to proton storms which along with the electron influx will disrupt ring currents and induced telluric currents. This in turn, will probably dial down seismicity until the ring currents can reform around September 9-12.  Strong seismicity is likely to be promoted 10-15 degrees from the geomagnetic equator and at high auroral latitudes around September 10-13. This is most likely in areas near 90 East and West longitudes including Indonesia and Central America among others. This is a combined effect of weather, geomagnetic and tidal effects associated with the full moon." (September 5-6, 2017) (September 6, 2017)

 

This summary is compatible with the expected effects of today's X8.7 flare. This flare was directly overhead (sub-solar) at about 68 West longitude when it began. Areas near this longitude are most likely to see SFE triggered seismicity

And include areas of Quebec and northeastern U.S; Puerto Rico and northern Caribbean and eastern Caribbean and the west coast of South America. Watch for enhanced seismicity in these regions. Preliminary data for today's flare from SWPC are:

 

 

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

#-------------------------------------------------------------------------------

 

3010       1646   1651      1718   X8.7      (May 14, 2024)   5.6E-01  

 

An earthquake occurred with M 4.9 today in the Volcano Islands, Japan. It was not reported felt in this remote area. It occurred at the beginning of a strong X1.7 solar flare which began at 02:03 and maximized at 02:09 UT ending at 02:19 UT with flux 1.1e-1 J m-2. An M 4.5 at 02:35 was also likely to have been promoted by SFE from this flare as were moderate events in Northern Peru (M 4.5) at 03:00 UT and Atacama, Chile at 03:18 UT. An M 5.4 hit near this epicenter on April 18, 2024 and an M 6.0 hit the area on February 12, 2024. Today's event is probably an aftershock of those.

 

Forecast 162668 had expected enhanced seismicity in the Volcano Islands was likely in mid-May.

 

 

O: 13MAY2024 19:03:09  23.3N  143.9E mb=4.9  EMSC   VOLCANO ISLANDS, JAPAN REGION

O: 14MAY2024 02:09:16  23.1N  143.8E MB=4.7  EMSC   VOLCANO ISLANDS, JAPAN REGION

P:  9MAY2024 162668    22.0N  145.0E 4.0-5.5 BBAAA  Volcano Islands            

 

Mount Ibu in north Maluku province in Indonesia erupted today. The eruption sent clouds of ash as high as 16,400 feet into the air. It is located at 1.5N 127.6E and is the second eruption of Ibu since April 2, 2024.

 

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: 13MAY2024 07:57:27  23.8N  121.0E ML=4.1  EMSC   TAIWAN

O: 14MAY2024 02:34:14  24.0N  121.8E MB=4.5  EMSC   TAIWAN                       

P: 13MAY2024 162936    24.0N  123.0E 4.0-5.6 AAAAA  Taiwan                     

 

O: 14MAY2024 00:00:00  33.6N   45.7E ML=4.1  EMSC   IRAN-IRAQ BORDER REGION       

P: 11MAY2024 162989    33.0N   46.0E 3.8-5.3 BAAAA  So. Iran                   

 

INDONESIA AND PHILIPPINES

 

O: 14MAY2024 01:51:30   0.3S  122.0E ML=4.1  EMSC   SULAWESI, INDONESIA          

P: 12MAY2024 162886     1.0S  124.0E 4.0-5.5 AABAA  Sulawesi area              

 

O: 13MAY2024 12:32:36   5.8S  148.6E MW=5.2  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 AABAA  New Ireland                

 

NEIC reported this earthquake of M 5.2 in New Guinea was felt with intensity up to III in the area(s) of  New Guinea in Kandrian.

 

O: 13MAY2024 10:28:39   6.5N  127.0E ML=4.2  EMSC   PHILIPPINE ISLANDS REGION    

O: 13MAY2024 18:26:11   7.6N  126.2E MB=4.6  EMSC   MINDANAO, PHILIPPINES        

P: 13MAY2024 162863     6.0N  127.0E 4.0-5.6 AAAAA  Halmahera                  

 

NEIC reported this earthquake of M 4.6 in Mindanao, Philippines  was felt with intensity up to III in the area(s) of   Mindanao, Philippines in Bantacan.

PHIVOLCS reported it at M 4.8 was felt with intensity IV in Mindanao at New Bataan and Monkayo, Davao de Oro; III in Maco, Davao de Oro and I in the City ofBislig, Surigao del Sur.

 

O: 13MAY2024 14:08:35   7.6S  123.6E MW=4.9  EMSC   BANDA SEA                    

P: 14MAY2024 162873     8.0S  121.0E 4.0-5.6 AACAA  Flores Island area         

 

O: 14MAY2024 08:11:11   8.4S  116.0E MB=5.1  EMSC   BALI REGION, INDONESIA       

O: 14MAY2024 08:11:11   8.4S  116.0E MB=5.1  ANSS   GILI TRAWANGAN INDONESIA     

P: 14MAY2024 162887     8.0S  119.0E 4.0-5.4 AACAA  Sumbawa Island area        

 

BMG reported this earthquake of M 5.1 in Timor, Indonesia was felt with intensity up to I-II in the area(s) of  Timor, Indonesia in Kabs Timor, Belu, Alor, Flores, Sikka and Lembata.

BMG  reported this earthquake of M 5.5 south of Bali  was felt with intensity up to III in the area(s) of Denpasar, Bali.

 

CENTRAL AND SOUTH AMERICA

 

O: 13MAY2024 14:13:13  10.0S   74.5W MB=4.8  EMSC   CENTRAL PERU                 

P: 13MAY2024 163080    10.0S   75.0W 3.5-5.4 AAAAA  Brazil                      

 

O: 14MAY2024 03:00:36   4.6S   77.6W MB=4.5  EMSC   NORTHERN PERU                

P: 11MAY2024 162880     6.0S   76.0W 4.0-5.7 BBBAA  No. Peru                   

P: 15MAY2024 162872     4.0S   80.0W 4.0-5.8 AABAA  Ecuador                     

 

O: 14MAY2024 05:20:07  13.0N   89.2W ML=4.4  EMSC   OFFSHORE EL SALVADOR         

P: 13MAY2024 162899    13.0N   90.0W 3.5-5.3 AAAAA  Guatemala                  

 

EMSC reported this earthquake of M 4.1 in El Salvador was felt with intensity up to IV in the area(s) of  El Salvador in Nueva San Salvador.

 

O: 14MAY2024 07:14:45  15.7N   92.7W ML=4.1  EMSC   CHIAPAS, MEXICO              

P: 11MAY2024 162894    15.0N   93.0W 3.5-5.5 BAAAA  Chiapas, Mexico            

P: 16MAY2024 162899    14.0N   92.0W 3.5-5.6 ABAAA  Guatemala                  

 

O: 13MAY2024 13:27:47  15.7N   95.0W ML=4.3  EMSC   OFFSHORE OAXACA, MEXICO      

P: 15MAY2024 162914    15.0N   96.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 13MAY2024 10:10:42  19.1N   68.8W ML=3.1  EMSC   DOMINICAN REPUBLIC REGION    

P: 13MAY2024 162917    18.0N   69.0W 3.4-4.9 AAAAA  Puerto Rico                

P: 13MAY2024 162922    20.0N   69.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 13MAY2024 10:56:04  19.2N  155.5W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII     

 

O: 14MAY2024 04:50:17  19.3N   64.6W MD=3.4  EMSC   VIRGIN ISLANDS REGION        

P: 13MAY2024 162901    19.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

 

O: 14MAY2024 03:18:35  28.7S   71.8W MW=4.8  EMSC   OFFSHORE ATACAMA, CHILE      

O: 14MAY2024 03:18:35  28.6S   72.1W MW=4.7  GUC    OFFSHORE ATACAMA, CHILE      

P: 12MAY2024 163094    28.0S   71.0W 4.0-5.5 AAAAA  Coast Central Chile        

 

EMSC reported this earthquake of M 4.6 in Chile was felt with intensity up to III in the area(s) of  Chile at Huasco, Atacama.

GUC gave the following parameters for this event:

 

O: 13MAY2024 09:18:51  35.4S   73.2W MW=5.2  EMSC   OFFSHORE MAULE, CHILE        

P: 15MAY2024 163111    36.0S   73.0W 4.0-5.8 AAAAA  Central Chile              

 

GUC reported this earthquake of M 5.2 in Maule, Chile was felt with intensity up to III in the area(s) of  Maule, Chile at Constitucion.

 

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

 

AFRICA AND EUROPE

 

O: 13MAY2024 13:56:43  37.5N   21.7E MB=4.1  EMSC   SOUTHERN GREECE              

P: 12MAY2024 162964    37.0N   20.0E 3.0-4.6 AABAA  No. Greece                 

P: 14MAY2024 162964    38.0N   21.0E 3.0-4.4 AAAAA  No. Greece                  

 

NEIC reported this earthquake of M 4.1 in Greece was felt with intensity up to III in the area(s) of  Greece at Krestena.

EMSC reported moderate shaking in southern Greece at Tholo, Olympia, Kallithea.

 

O: 14MAY2024 02:33:50  38.9N   26.9E ML=1.9  EMSC   NEAR THE COAST OF WESTERN    

P: 20MAY2024 162938    38.0N   27.0E 3.0-4.6 CAAAA  Aegean Sea                 

 

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

 

SOUTHWEST PACIFIC

 

O: 13MAY2024 17:24:03  21.3S  179.4W MB=4.7  EMSC   FIJI REGION                  

P: 13MAY2024 163103    22.0S  180.0W 4.0-5.8 AAAAA  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

 

O: 13MAY2024 17:05:51  28.0S  176.7W MB=4.9  EMSC   KERMADEC ISLANDS REGION      

P: 12MAY2024 163097    29.0S  178.0W 4.0-5.7 AAAAA  No. Kermadec Islands       

P: 14MAY2024 163097    28.0S  177.0W 4.0-5.8 AAAAA  No. Kermadec Islands       

 

GEONET reported a moderate quake of M 4.2 was felt with light  intensity in the area near Taupo. More than 43 reports of which 38 were of weak shakin, 4 of light and 1 of moderate intensity were reported.

 

O: 14MAY2024 08:50:59 38.5S 176.2E MS=4.2  GEONET Felt with light  intensity in the area near Taupo. More than 43 reports of which 38 were of weak shakin, 4 of light and 1 of moderate intensity were reported.

 

JAPAN AND KURIL ISLANDS

 

O: 13MAY2024 19:03:09  23.3N  143.9E mb=4.9  EMSC   VOLCANO ISLANDS, JAPAN REGION

O: 14MAY2024 02:09:16  23.1N  143.8E MB=4.7  EMSC   VOLCANO ISLANDS, JAPAN REGION

P:  9MAY2024 162668    22.0N  145.0E 4.0-5.5 BBAAA  Volcano Islands            

 

O: 13MAY2024 17:13:30  36.4N  141.2E ML=3.7  EMSC   NEAR EAST COAST OF HONSHU,   

P: 12MAY2024 162972    36.0N  140.0E 4.0-5.4 AAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 13MAY2024 09:11:51  32.4N  115.2W ML=2.8  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 19:50:34  32.4N  115.2W ML=2.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 19:57:06  32.4N  115.3W ML=2.3  EMSC   BAJA CALIFORNIA, MEXICO

O: 14MAY2024 04:34:58  32.9N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 14MAY2024 05:02:03  32.9N  115.5W ML=2.3  EMSC   SOUTHERN CALIFORNIA

O: 13MAY2024 08:28:12  32.4N  115.2W ML=2.0  EMSC   BAJA CALIFORNIA, MEXICO      

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.8 in Baja California was felt with intensity up to III in the area(s) of  Baja California in Delta.

 

O: 13MAY2024 21:30:15  30.9N  114.3W ML=3.4  EMSC   GULF OF CALIFORNIA           

P: 14MAY2024 162978    30.4N  114.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 14MAY2024 05:08:20  33.6N  116.8W ML=2.6  EMSC   SOUTHERN CALIFORNIA          

P: 12MAY2024 162984    33.9N  116.9W 2.5-4.4 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.6 in Southern California was felt with intensity up to III in the area(s) of  Southern California at Anza.

 

ALASKA

 

O: 13MAY2024 21:36:17  51.5N  177.9W ML=3.6  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 12MAY2024 163047    50.9N  179.0W 3.5-5.1 AAAAA  Andreanoff Isls, Aleutians 

P: 13MAY2024 163048    51.7N  176.4W 3.5-4.9 AAAAA  Andreanoff Isls, 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: 13MAY2024 18:33:44  31.6N  104.3W ML=2.1  EMSC   WESTERN TEXAS

O: 13MAY2024 23:48:54  31.7N  104.2W ML=2.2  EMSC   WESTERN TEXAS                

P: 14MAY2024 162977    31.4N  104.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 13MAY2024 16:28:43  47.4N  113.0W ML=2.0  EMSC   WESTERN MONTANA              

P: 12MAY2024 163018    47.5N  112.8W 2.0-3.9 AAAAA  Montana/Idaho              

 

O: 13MAY2024 08:42:02  44.4N  115.2W ML=2.6  ANSS   NW OF STANLEY IDAHO          

P: 15MAY2024 163017    44.4N  115.1W 2.0-4.1 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 13MAY2024 09:21:02  47.4N   70.5W MB=0.9  ECAN OF BAIE-SAINT-PAUL, QC         

P: 17MAY2024 163016    47.0N   70.0W 2.0-3.9 BAAAA  Maine                      

 

O: 13MAY2024 02:27:56  45.9N   74.6W MB=2.5  ECAN OF HUBERDEAU, QC               

P: 19MAY2024 163023    46.0N   74.0W 2.0-4.1 CAAAA  New York State             

 

O: 13MAY2024 23:18:26  35.7N   98.1W ML=2.4  EMSC   OKLAHOMA

O: 13MAY2024 15:20:53  35.6N   98.1W ML=2.1  EMSC   OKLAHOMA                     

P: 12MAY2024 162992    36.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

STRONG QUAKE IN CHIAPAS; BAJA CALIFORNIA FOLLOWS SEVERE GEOMAGNETIC STORM

 

EARTHQUAKE SUMMARY FOR MAY 12, 2024

 

 

As the geomagnetic storm wound down today, the expected resurgence of global seismicity began. This started with an M 6.4 off the coast of Guatemala and Chiapas, Mexico. Then near local solar noon an earthquake of M 4.9-5.0 occurred in Baja California. This was accompanied by a number of foreshocks and moderate aftershocks. This was followed by an M 5.9 in the Kermadec Islands, New Zealand. Each of these had been expected as a consequence of recent X-class solar flares.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              

 

The strongest earthquake of the day was an M 6.4 near the Chiapas, Mexico-Guatemala border. NEIC reported it was felt with intensity up to VII in Brisas Barra de Suchiate, Mexico and in Quetzaltenango, Guatemala. EMSC reported strong shaking in Chiapas, Mexico at Tapachula de Cordova and Aordonez, Huixtla,

and in Guatemala at Mazatenango, Chimaltenango, Ciudad Palmares, Antigua Guatemala, San Lucas Sacatepequez, Residenciales Naciones Unidas, San Jose, Colonia Linda Vista, San Cristobal, Fuentes Del Valle, Guatemala City, Colonia Valles, De Vista Hermosa, and in San Salvador, El Salvador.  The press reported minor damage but no casualties with this strongly felt earthquake. Today's earthquake of M 6.4 is the strongest within about 200 km of this epicenter since an M 6.4 on May 17, 2023 but the last of larger magnitude in this area was an M 6.6 on February 1, 2019 and an M 8.1 on September 8, 2017. At the time of the event in September 8, 2017 this summary noted the effect of strong solar flares on the triggering of this event as:

 

 

"A great earthquake of M 8.0 (EMSC) to 8.4 (UNAM) hit the area south of Oaxaca and Chiapas, Mexico today. It was felt widely from Guatemala City to Mexico City and as far north as Belize. This is the first earthquake in the world with M>=8.0 since an M 8.3 in Central Chile on September 16, 2015 and prior to that an M 8.2 on April 1, 2014 in the area of northern Chile. On average there is approximately two years between great earthquakes such as this. The last earthquake of M>=8.0 within about 300 km of today's epicenter occurred on August 6, 1942 and M 8.4 on September 23, 1902 and April 19, 1902. These were M 8.3-8.4 events. This earthquake had been anticipated in previous issues of this report because of several factors including the X9.3 solar flare yesterday, tidal stresses and the severe geomagnetic storms. It occurred within about an hour of local solar midnight, a time when these effects maximize.

 

 

GEOMAGNETIC PROMOTION:

 

The geomagnetic field was at severe storm conditions today.  The AP level was 38. High latitude geomagnetic field saw severe storm conditions with AP at 60.  triggering of strong seismicity from the severe geomagnetic storms  today and tomorrow is likely and includes the M 8.0-8.4 quake in eastern Mexico today.  A flare of X1.3 occurred near UT noon today, This follows two similar quakes yesterday including an X9.3 the first X-class solar flare since an X2.1 on March 11, 2015 and the strongest flare in at least 11 year, the solar cycle period. Strong seismicity is likely to be promoted 10-15 degrees from the geomagnetic equator and at high auroral latitudes around September 10-13. This is most likely in areas near 90 East and West longitudes including Indonesia and Central America among others. This is a combined effect of weather, geomagnetic and tidal effects associated with the full moon. The earthquake today in eastern Mexico appears to confirm this analyses. The planetary K-index reached maximum of 8 today, around 0400 UT on September 8. This is the first time it has reach 8 since  March 17, 2015, two and a half years ago. The simultaneity of this geomagnetic storm and the M8+ at the same time in Chiapas, Mexico is powerful coincidental evidence for a triggering relation as previously noted in this summary on many occasions." (September 8, 2017)

 

With this in mind this summary noted likely enhanced seismicity in this area in the previous issue of this summary as:

 

"Solar Flare 1310 on May 10 occurred at the same time and was also considered likely to promote a strong earthquake in the region of Central America or Mexico, but this event has not yet occurred. The most active areas  of Chiapas, Mexico and Nicaragua have seen moderate quakes associated with the recent strong solar flares and geomagnetic storm. An M 4.5 did occur today off Chiapas, Mexico with a foreshock of M 4.0 six hours earlier. This could be a precursor to a stronger regional earthquake. Forecast 162626, 162895 and 162894 had expected enhanced seismicity in this region was likely within about 50 km of these epicenters around May 9-13." (May 12, 2024) 

 

 

Forecasts 162894 and 162899 had expected today's event within about 100 km  in Chiapas, Mexico around May 11-16, 2024. This activity is at 103 degrees from recent strong earthquakes in the Loyalty Island and at the third node (120 degrees) from the M 7.0 in Xinjiang, China of January 22, 2024 and  was probably promoted by energy from those sources.

 

 

O: 12MAY2024 11:39:11  14.5N   92.3W Mw=6.4  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 12MAY2024 23:00:03  14.4N   92.5W MB=4.4  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 11MAY2024 162894    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

P: 16MAY2024 162899    14.0N   92.0W 3.5-5.6 BAAAA  Guatemala                  

 

NEIC reported an earthquake of M 4.9 in Ethiopia was felt with intensity up to III in the area(s) of  Ethiopia at Turmi. This earthquake occurred within minutes of local solar midnight and was probably promoted by strong tidal stresses which maximize near this hour. This area often sees enhanced seismicity with major X-class solar flares and this was likely a major factor in the triggering of this event at this time. The last earthquake with M>=4.9 in Ethiopia within about 300 km of today's epicenter occurred on May 3, 2020 with M 4.9 but the last in this area with significantly larger magnitude was an M 5.2 on September 18, 1993. At the time of an M 5.1 on December 3, 2011 this summary noted:

 

 

“The most unusual earthquake of the day occurred in southern Ethiopia near the Kenyan border with M 5.0. This is the strongest earthquake to hit the area in at least three years. Only one other earthquake of similar or larger magnitude has occurred in this region in the past 22 years, an M 5.3 on September 18, 1993." (December 3, 2011)

 

 

O: 12MAY2024 21:36:11   5.4N   36.8E MB=4.9  EMSC   ETHIOPIA                     

 

The strongest earthquake in the U.S. or Canada today was an M 4.9-5.0 in Baja California near the border with California (US), It was widely felt with intensity up to VI in the region of Delta, Baja California, Mexico. EMSC reported light to moderate shaking in Southern California in Calexico, El Centro, Carlsbad, Oceanside, in Arizona at Yuma; Holtville and in Baja California in Mexicali. Numerous foreshocks and aftershocks were felt in the Delta Baja California region of Mexico with light to moderate intensity (II-IV).

The M 4.9 is the strongest earthquake in Baja within about 200 km of this event in more than three years. An M 4.8 hit the same epicenter on March 31, 2021. The series began with a light event of M 2.4 that occurred at the height of the strongest solar flare of the day - an X1.0 which peaked at 16:35 UT. An earthquake of M 3.9 off the coast of Honshu, Japan also occurred with the peak of this X1.0 class flare at 16:37 UT. A similar simultaneity of the foreshock to this event occurred  with M 4.1 on May 8, 2024 and an X-class solar flare. At the time this summary noted this as:

 

 

"The strongest earthquake in the U.S. or Canada today was an M 4.1 on the  border between Southern California and Baja California. This earthquake was closely associated  with a series of strong solar flares beginning with flare 270 (C9.3) around 01:00 UT and ending with flares 280 and 290 (about 01:15-01:35 UT) - an X1.0 class flare. It is likely it was promoted by SFE from those sources. (May 8, 2024)

 

 

This swarm in Baja California began at the end of flare 2400 - the largest of the day and was probably precipitated by SFE from that flare. SWPC data for this flare follows:

 

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

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

 

2400       1611   1626      1638   X1.0      (May 12, 2024)   9.6E-02  

 

Following is a listing of events in this swarm today of M>=3. A more detailed list of events of M>=2 can be found under the "CALIFORNIA" section of this summary.

 

Forecasts 162709 and 162981 had expected this activity in Baja California was likely around May 9-15 within about 50 km of today's epicenters. These epicenters are at 102-104 degrees from recent strong earthquakes in Taiwan of April 2, 2024; New Guinea of March 23, 2024; and Xinjiang China of January 22, 2024 and had been expected as far-field aftershocks of these events as noted with the Taiwan quake of April 2, 2024:

 

 

 

"Far-field earthquake triggering is possible with earthquakes of M 7.5 or greater. In the case of Taiwan, the most likely triggering zones - near 144 degrees and 103 degrees from Taiwan do not contain many areas of high seismicity and far-field triggering is likely to be muted. Following is a listing of potential triggering sites with this earthquake:

 

103 degrees: Southern, Baja California, Utah, Nunuvat, Ontario, Quebec Canada, South Africa, Spain, Morocco, Portugal" (April 2, 2024)

 

O: 12MAY2024 16:35:07  32.4N  115.2W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:05:24  32.4N  115.2W ML=2.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:24:04  32.4N  115.2W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 19:04:00  32.3N  115.2W mb=4.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:22:43  32.4N  115.3W Mw=4.9  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:25:04  32.4N  115.3W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:25:54  32.4N  115.2W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:26:48  32.4N  115.2W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:28:02  32.4N  115.2W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:33:44  32.4N  115.3W Mw=4.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:42:03  32.4N  115.3W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:45:00  32.4N  115.3W Mw=3.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:53:40  32.4N  115.2W Mw=3.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 00:04:11  32.4N  115.2W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 04:02:18  32.4N  115.2W Mw=4.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 04:07:34  32.4N  115.2W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 04:08:16  32.4N  115.2W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 BAAAA  So. California             

P: 11MAY2024 162981    32.8N  116.0W 2.5-4.4 AAAAA  So. California             

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 BAAAA  So. California             

 

 

An earthquake of M 4.9 occurred today in the region of the Andreanof Islands, Aleutians, Alaska. The last earthquake of M>=4.9 in the Andreanof Islands occurred as an M 5.0 on February 29, 2024. Like the earthquake (see above) in the Kermadec Islands, this lies at 176-177 West longitude and was near local solar noon when the X5.8 flare occurred on May 11 and was probably promoted by

SFE associated with that flare.

 

Forecast 163058 had expected this earthquake in the Andreanof Islands was likely within about 50 km of this epicenter was likely around May 13.

 

O: 11MAY2024 10:58:54  51.9N  176.0W MB=4.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 13MAY2024 163048    51.7N  176.4W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

An earthquake of M 5.9 also occurred in the southern Kermadec Islands of New Zealand today. It was not reported felt in this region. Te last earthquake of M>=5.9 in the Kermadec Islands was an M 6.1 on February 9, 2024. Today's activity in the Kermadec Islands was anticipated in this summary because the region was near local solar noon at the time of the X5.8 flare of May 11. At the time this summary noted:

 

"Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

When an M 5.4 foreshock to today's event in the Kermadec Islands occurred northeast of today's epicenter on May 12, this summary noted it as:

 

"The strongest earthquake in the world today was an M 5.4 in the Kermadec Islands, New Zealand. This epicenter was near local solar noon when the X5.8 flare occurred earlier in the day and was probably promoted by SFE and geomagnetic stresses. In the previous issue of this summary the Kermadec Islands had been pointed to as a possible area of interest in the current geomagnetic storm

 

...

 

While a similar M 5.4-5.5 quake hit the Kermadec Islands on April 25, 2024 the last of significantly larger magnitude in this area was an 6.1 on February 9, 2024" (May 12, 2024).

 

Forecast 163117 had expected today's event within about 50 km was likely around May 12, 2024.

 

O: 12MAY2024 18:43:23  31.6S  178.4W MW=5.9  EMSC   KERMADEC ISLANDS REGION      

P: 12MAY2024 163117    31.0S  178.0W 4.0-5.4 AAAAA  So. Kermadec Islands       

 

The occurrence of an M 3.9-4.2 off the coast of Honshu, Japan at the time of the

X1.0 flare and following the beginning of the swarm in Baja California  by two minutes is noted here because large earthquakes are common in today's solar/geomagnetic environment and this could be a precursor to something much larger in the near future in the area of eastern Honshu, Japan.

 

Forecasts 162973 had expected this earthquake off the coast of Honshu, Japan was likely around May 13, 2024.

 

O: 12MAY2024 16:37:10  38.3N  141.6E ML=3.9  EMSC   NEAR EAST COAST OF HONSHU, JAP

O: 12MAY2024 16:37:10  38.3N  141.6E mb=4.2  ANSS   Onagawa Ch┼ì Japan

P: 13MAY2024 162973    38.0N  140.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

 

BMG reported a moderately strong earthquake occurred in Sulawesi, Indonesia today. BMG reported intensity III in Sulawesi Tengah, Balantak, Banggai with II in Balantak. Lesser shaking was reported from Kab. Mongondow, Minahas, Mongondo2, Siau, Biaro, among other regional Kabs. Forecast 162864 had expected enhanced seismicity within about 150 km of today's epicenter was likely around May 14, 2024.

 

O: 13MAY2024 00:28:13   1.0N  123.9E MW=5.8  BMG    MINAHASA, SULAWESI, INDONESIA

O: 13MAY2024 00:28:13   1.0N  123.9E MW=5.2  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 14MAY2024 162864     0.0N  123.0E 4.0-5.8 AAAAA  Mindanao, Philippines      

 

An unusual earthquake of M 2.9 occurred today in the area of Hopedale, Newfoundland, Canada. Two earthquakes of M>=2.9 have occurred within about 200 km of this epicenter according to NEIC data in the past 35 years - the last was an M 4.4 on November 4, 2020. Forecast 163065 had expected today's event could occur around May 11 to the north of this epicenter.

 

O: 12MAY2024 02:40:21  55.6N   59.6W MB=2.9  ECAN OF HOPEDALE, NL                

P: 11MAY2024 163065    61.0N   58.0W 2.5-4.1 ACAAA  Baffin/Davis Strait Canada 

 

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: 12MAY2024 07:05:40  47.9N  153.2E MB=4.3  EMSC   KURIL ISLANDS                

P:  9MAY2024 162746    47.0N  155.0E 3.5-5.6 BABAA  NE Pacific                 

 

O: 13MAY2024 06:44:53  41.6N   71.6E MB=4.0  EMSC   KYRGYZSTAN                   

P: 15MAY2024 162955    39.0N   71.0E 3.8-5.2 ACAAA  Hindu Kush/Pakistan        

 

O: 12MAY2024 20:35:18  45.2N   97.9E ML=3.8  EMSC   WESTERN MONGOLIA             

 

O: 12MAY2024 22:56:35  52.9N  107.3E MB=4.3  EMSC   LAKE BAYKAL REGION, RUSSIA   

P: 13MAY2024 163061    56.0N  110.0E 3.0-4.5 ACBAA  So. Siberia                

 

EMSC reported this earthquake of M 4.2 in Lake Baykal, Russia was felt with intensity up to III in the area(s) of  Lake Baykal, Russia at Babushkin, Irkutsk, Kitoy. 

 

O: 12MAY2024 11:02:26  56.1N  160.9E MB=4.8  EMSC   KAMCHATKA PENINSULA, RUSSIA  

P: 12MAY2024 163050    56.0N  162.0E 4.0-5.7 AAAAA  E. of Kamchatka            

 

O: 12MAY2024 20:11:15  56.2N  164.1E MB=4.4  EMSC   KOMANDORSKIYE OSTROVA REGION 

P: 14MAY2024 163053    56.0N  163.0E 4.0-6.1 AAAAA  Komandorsky Isl            

 

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

 

INDONESIA AND PHILIPPINES

 

O: 13MAY2024 00:28:13   1.0N  123.9E MW=5.8  BMG    MINAHASA, SULAWESI, INDONESIA

O: 13MAY2024 00:28:13   1.0N  123.9E MW=5.2  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 14MAY2024 162864     0.0N  123.0E 4.0-5.8 AAAAA  Mindanao, Philippines      

 

O: 12MAY2024 14:33:06   5.7S  112.7E mb=4.6  EMSC   JAVA SEA

O: 13MAY2024 06:42:29   5.8S  112.5E MB=4.8  EMSC   JAVA SEA                     

P: 17MAY2024 162883     6.0S  113.0E 4.0-5.5 BAAAA  So. of Bali                

 

O: 12MAY2024 09:58:15  17.7N  145.9E MB=4.5  EMSC   ALAMAGAN REG, N. MARIANA ISLAN

P: 17MAY2024 162912    18.0N  145.0E 4.0-5.4 BAAAA  No. Marianas               

 

O: 12MAY2024 14:33:06   5.7S  112.7E mb=4.6  EMSC   JAVA SEA

 

 

CENTRAL AND SOUTH AMERICA

 

O: 12MAY2024 11:39:11  14.5N   92.3W Mw=6.4  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 12MAY2024 23:00:03  14.4N   92.5W MB=4.4  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 11MAY2024 162894    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

P: 16MAY2024 162899    14.0N   92.0W 3.5-5.6 BAAAA  Guatemala                  

 

O: 12MAY2024 14:54:34   8.9S   78.5W ML=4.1  EMSC   NEAR COAST OF NORTHERN PERU  

P: 13MAY2024 163080    10.0S   75.0W 3.5-5.4 ABCAA  Brazil                     

 

O: 12MAY2024 19:11:59  10.6S   73.9W MB=4.4  EMSC   CENTRAL PERU                 

O: 12MAY2024 19:58:01  11.5S   75.8W ML=4.0  EMSC   CENTRAL PERU

P: 13MAY2024 163080    10.0S   75.0W 3.5-5.4 AAAAA  Brazil                     

 

O: 13MAY2024 00:05:00   4.1S   77.9W ML=4.0  EMSC   NORTHERN PERU                

P: 15MAY2024 162872     4.0S   80.0W 4.0-5.8 AABAA  Ecuador                    

 

O: 12MAY2024 10:19:08  11.9N   73.5W MB=4.9  EMSC   NEAR NORTH COAST OF COLOMBIA 

P: 15MAY2024 162913    10.0N   70.0W 3.4-5.0 ABCAA  No. Venezuela              

 

NEIC reported this earthquake of M 4.9 in Colombia was felt with intensity up to III in the area(s) of  Colombia in Dibulla.

 

O: 12MAY2024 09:18:07  12.6N   88.2W ML=4.1  EMSC   OFFSHORE EL SALVADOR         

P: 10MAY2024 162627    13.0N   89.0W 3.5-5.7 AAAAA  Coast of Central America   

 

O: 12MAY2024 23:00:03  14.4N   92.5W MB=4.4  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 11MAY2024 162894    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

P: 16MAY2024 162899    14.0N   92.0W 3.5-5.6 BAAAA  Guatemala                  

 

 

O: 12MAY2024 07:43:52  15.8N   95.0W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 13MAY2024 06:22:00  15.8N   95.2W ML=4.1  EMSC   OFFSHORE OAXACA, MEXICO      

P: 15MAY2024 162914    15.0N   96.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 13MAY2024 06:31:54  17.4N  101.1W ML=4.0  EMSC   GUERRERO, MEXICO             

P: 13MAY2024 162915    17.0N  100.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 12MAY2024 15:54:36  18.0N   68.3W MD=3.6  EMSC   DOMINICAN REPUBLIC REGION    

P: 13MAY2024 162917    18.0N   69.0W 3.4-4.9 AAAAA  Puerto Rico                

 

O: 13MAY2024 01:48:18  18.4N   73.5W ML=3.2  EMSC   HAITI REGION                 

P:  6MAY2024 162651    20.0N   73.0W 3.0-4.6 CBAAA  Bahamas/No. Caribbean      

 

O: 12MAY2024 10:11:55  18.6N  106.4W ML=4.0  EMSC   OFF COAST OF JALISCO, MEXICO 

P: 11MAY2024 162897    19.0N  107.0W 3.5-5.6 AAAAA  Coast of Jalisco, Mexico   

 

O: 12MAY2024 16:05:11  18.8N   69.5W ML=3.5  EMSC   DOMINICAN REPUBLIC           

P: 13MAY2024 162917    18.0N   69.0W 3.4-4.9 AAAAA  Puerto Rico                 

 

O: 12MAY2024 16:29:01  19.0N   65.2W MD=3.4  EMSC   PUERTO RICO REGION           

P: 13MAY2024 162901    19.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

P: 19MAY2024 162917    19.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 12MAY2024 10:26:34  18.6N  106.4W ML=4.3  EMSC   OFF COAST OF JALISCO, MEXICO

O: 12MAY2024 10:00:37  18.7N  106.4W ML=4.0  EMSC   OFF COAST OF JALISCO, MEXICO

O: 12MAY2024 13:05:52  18.7N  106.4W ML=4.1  EMSC   OFF COAST OF JALISCO, MEXICO

O: 12MAY2024 09:55:31  19.0N  106.2W MB=4.5  EMSC   OFF COAST OF JALISCO, MEXICO 

P: 11MAY2024 162897    19.0N  107.0W 3.5-5.6 AAAAA  Coast of Jalisco, Mexico   

 

O: 13MAY2024 06:53:15  18.0N   68.3W MD=3.2  EMSC   DOMINICAN REPUBLIC REGION

O: 12MAY2024 13:19:42  18.2N   67.2W MD=3.2  EMSC   MONA PASSAGE, PUERTO RICO

O: 13MAY2024 03:26:23  19.3N   69.3W ML=3.0  EMSC   DOMINICAN REPUBLIC

O: 12MAY2024 17:46:58  19.4N   68.7W MD=3.8  EMSC   DOMINICAN REPUBLIC REGION

O: 12MAY2024 18:13:58  19.2N   68.7W MD=3.6  EMSC   DOMINICAN REPUBLIC REGION    

P: 13MAY2024 162917    18.0N   69.0W 3.4-4.9 AAAAA  Puerto Rico                

P: 13MAY2024 162922    20.0N   69.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 12MAY2024 21:33:55  27.8S   72.1W MW=4.0  EMSC   OFFSHORE ATACAMA, CHILE      

P: 12MAY2024 163094    28.0S   71.0W 4.0-5.5 AAAAA  Coast Central Chile        

 

O: 13MAY2024 00:33:52  33.4S   68.5W MW=4.4  EMSC   MENDOZA, ARGENTINA           

P: 14MAY2024 163109    33.0S   68.0W 4.0-5.8 AAAAA  Central Chile               

 

NEIC reported this earthquake of M 4.4 in Argentina  was felt with intensity up to IV in the area(s) of   Argentina at San Martin.

EMSC reported light to moderate shaking in Argentina at Lujan de Cuyo, Guaymallen, Godoy Cruz, Mendoza.

 

 

AFRICA AND EUROPE

 

O: 12MAY2024 21:36:11   5.4N   36.8E MB=4.9  EMSC   ETHIOPIA                     

 

SOUTHWEST PACIFIC

 

O: 13MAY2024 00:24:50  11.6S  165.2E MW=5.2  EMSC   SANTA CRUZ ISLANDS           

P: 17MAY2024 163090    12.0S  166.0E 4.0-5.7 BAAAA  Vanuatu Islands            

 

OCEAN RIDGES

 

O: 13MAY2024 01:28:47   1.3N   30.6W MB=4.9  EMSC   CENTRAL MID-ATLANTIC RIDGE   

P: 12MAY2024 162857     1.0N   29.0W 4.0-5.8 AABAA  Central Mid-Atlantic Ridg  

 

O: 13MAY2024 02:47:02   3.9S  103.8W MB=5.0  EMSC   CENTRAL EAST PACIFIC RISE    

P: 19MAY2024 162879     4.0S  104.0W 4.0-5.6 CAAAA  No. East Pacific Rise      

 

O: 12MAY2024 09:03:48   7.0S   71.9E MB=4.6  EMSC   CHAGOS ARCHIPELAGO REGION    

P: 10MAY2024 162601     3.0S   68.0E 4.0-5.7 ACCAA  Indian Ocean               

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today.

 

JAPAN AND KURIL ISLANDS

 

O: 12MAY2024 16:37:10  38.3N  141.6E ML=3.9  EMSC   NEAR EAST COAST OF HONSHU, JAP

O: 12MAY2024 16:37:10  38.3N  141.6E mb=4.2  ANSS   Onagawa Ch┼ì Japan

P: 13MAY2024 162973    38.0N  140.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 12MAY2024 14:39:40  32.3N  115.3W ML=2.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 19:04:00  32.3N  115.2W mb=4.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 16:35:07  32.4N  115.2W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:05:24  32.4N  115.2W ML=2.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:24:04  32.4N  115.2W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:26:26  32.4N  115.2W ML=2.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:40:47  32.4N  115.3W ML=2.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:42:57  32.4N  115.2W ML=2.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:43:48  32.4N  115.3W ML=2.8  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:52:56  32.4N  115.2W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 17:55:28  32.4N  115.3W ML=2.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:05:50  32.4N  115.2W ML=2.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:22:43  32.4N  115.3W Mw=4.9  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:25:04  32.4N  115.3W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:25:54  32.4N  115.2W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:26:48  32.4N  115.2W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:28:02  32.4N  115.2W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:30:59  32.4N  115.2W ML=2.7  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:32:41  32.4N  115.3W ML=2.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:33:44  32.4N  115.3W Mw=4.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:35:35  32.4N  115.3W ML=2.8  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:36:35  32.4N  115.3W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:38:53  32.4N  115.2W ML=2.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:40:15  32.4N  115.3W ML=2.7  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:42:03  32.4N  115.3W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:45:00  32.4N  115.3W Mw=3.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:48:03  32.4N  115.2W ML=2.9  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:49:46  32.4N  115.2W ML=2.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:51:16  32.4N  115.2W ML=2.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:53:40  32.4N  115.2W Mw=3.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 18:56:15  32.4N  115.2W ML=2.8  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 19:32:42  32.4N  115.3W ML=2.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 19:56:11  32.4N  115.2W ML=2.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 20:00:16  32.4N  115.2W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 20:06:45  32.4N  115.3W ML=2.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 20:15:07  32.4N  115.2W ML=2.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 20:46:25  32.4N  115.3W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 00:03:07  32.4N  115.2W ML=2.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 00:04:11  32.4N  115.2W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 00:25:14  32.4N  115.2W ML=2.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 01:29:01  32.4N  115.2W ML=2.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 01:44:12  32.4N  115.2W ML=2.6  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 03:46:27  32.4N  115.3W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 04:02:18  32.4N  115.2W Mw=4.2  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 04:07:34  32.4N  115.2W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 04:08:16  32.4N  115.2W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 13MAY2024 04:09:52  32.4N  115.2W ML=2.7  EMSC   BAJA CALIFORNIA, MEXICO

O: 12MAY2024 20:22:03  32.5N  115.3W ML=2.3  EMSC   BAJA CALIFORNIA, MEXICO      

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 BAAAA  So. California             

P: 11MAY2024 162981    32.8N  116.0W 2.5-4.4 AAAAA  So. California             

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 BAAAA  So. California             

 

O: 13MAY2024 03:55:57  32.5N  116.3W ML=2.3  EMSC   BAJA CALIFORNIA, MEXICO      

P: 11MAY2024 162981    32.8N  116.0W 2.5-4.4 AAAAA  So. California             

 

O: 13MAY2024 04:03:04  35.7N  115.5W ML=2.8  EMSC   NEVADA                       

P: 15MAY2024 162986    35.1N  117.0W 2.5-4.5 AABAA  So. California             

 

O: 12MAY2024 07:01:40  36.0N  117.7W ML=2.5  EMSC   CENTRAL CALIFORNIA           

P: 12MAY2024 162940    36.2N  117.9W 2.5-4.4 AAAAA  California/Nevada area     

 

NEIC reported this earthquake of M 2.6 in Central California was felt with intensity up to III in the area(s) of  Central California in Little Lake.

 

O: 12MAY2024 17:03:56  37.2N  118.6W md=2.4  ANSS   W of Wilkerson CA

P: 12MAY2024 162942    37.5N  118.6W 2.5-4.5 AAAAA  California/Nevada area     

 

O: 12MAY2024 20:46:16  38.2N  122.5W MD=2.4  EMSC   NORTHERN CALIFORNIA          

P: 12MAY2024 162949    37.8N  122.0W 2.5-4.5 AAAAA  Central California         

 

O: 13MAY2024 00:53:53  38.8N  122.8W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P: 14MAY2024 162950    38.9N  122.8W 2.5-4.8 AAAAA  Central California         

 

O: 13MAY2024 04:17:43  40.4N  121.2W MD=2.4  EMSC   NORTHERN CALIFORNIA          

P: 13MAY2024 163026    40.3N  121.2W 2.5-4.9 AAAAA  Northern California         

 

 

ALASKA

 

O: 12MAY2024 21:29:44  51.5N  179.3W ML=3.6  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 12MAY2024 163047    50.9N  179.0W 3.5-5.1 AAAAA  Andreanoff Isls, Aleutians 

 

O: 12MAY2024 10:14:57  60.5N  151.8W ML=3.7  EMSC   KENAI PENINSULA, ALASKA      

P: 12MAY2024 163068    60.2N  152.7W 3.2-4.9 AAAAA  Central Alaska             

P: 13MAY2024 163068    60.1N  150.6W 3.2-5.0 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 13MAY2024 00:03:13  43.6N  128.1W ML=3.1  EMSC   OFF COAST OF OREGON          

P: 14MAY2024 163030    44.1N  128.8W 3.0-4.7 AAAAA  Off Coast of Oregon        

 

NEIC reported this earthquake of M 3.1 off the coast of Oregon  was felt with intensity up to III in the area(s) of  Oregon.

 

ROCKY MOUNTAINS REGION

 

O: 13MAY2024 00:55:22  31.6N  104.5W ML=2.5  EMSC   WESTERN TEXAS

O: 12MAY2024 10:23:41  31.7N  104.2W ML=3.2  EMSC   WESTERN TEXAS

O: 12MAY2024 12:24:54  31.5N  104.1W ML=2.4  EMSC   WESTERN TEXAS                

P: 14MAY2024 162977    31.4N  104.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

O: 12MAY2024 13:25:48  37.4N  113.1W ML=2.1  EMSC   UTAH                         

P: 13MAY2024 162998    38.7N  112.6W 2.0-3.9 ABAAA  Utah area                  

P: 16MAY2024 162998    37.0N  111.8W 2.0-3.9 BAAAA  Utah area                  

 

EASTERN U.S./CANADA

 

O: 13MAY2024 01:41:49  35.7N   98.1W ML=2.0  EMSC   OKLAHOMA                     

P: 12MAY2024 162992    36.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

 

O: 13MAY2024 02:27:56  45.9N   74.6W MB=2.5  ECAN OF HUBERDEAU, QC               

O: 13MAY2024 02:27:56  45.9N   74.6W ML=2.5  EMSC   ONTARIO-QUEBEC BORD REG., CANA

P: 19MAY2024 163023    46.0N   74.0W 2.0-4.1 CAAAA  New York State             

 

O: 12MAY2024 16:02:17  49.2N   67.8W MB=1.1  ECAN OF FRANQUELIN, QC              

P: 14MAY2024 163009    49.0N   66.0W 2.0-4.5 AAAAA  E. of Maine                

P: 18MAY2024 163016    49.3N   67.5W 2.0-4.2 CAAAA  Maine                      

 

O: 13MAY2024 09:21:02  47.4N   70.5W MB=0.9  ECAN OF BAIE-SAINT-PAUL, QC   

O: 12MAY2024 12:46:56  47.7N   70.1W MB=1.7  ECAN OF LA MALBAIE, QC              

P: 17MAY2024 163016    47.0N   70.0W 2.0-3.9 AAAAA  Maine                      

 

O: 12MAY2024 02:40:21  55.6N   59.6W MB=2.9  ECAN OF HOPEDALE, NL                

P: 11MAY2024 163065    61.0N   58.0W 2.5-4.1 ACAAA  Baffin/Davis Strait Canada 

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

EXTREME GEOMAGNETIC STORM AT HIGHEST AP LEVELS IN MODERN TIMES

 

EARTHQUAKE SUMMARY FOR MAY 11, 2024

 

An extreme geomagnetic storm has occurred over the past two days. The planetary AP index today  of 273 is  unprecedented in modern times but high latitude and middle latitudes also saw record AP of 208 and 175 respectively. As this storm dies down global seismicity is expected  to rise and possibly include large or major earthquakes.

 

Among early casualties from the continuing geomagnetic storm was the Starlink Satellite system of Musk which has been helpful in communications in war-torn areas such as Ukraine. The web was also out in Florida where aurora were visible for the first time in many years. Florida is too far south for many of the visible effects of geomagnetic storms but AP at middle latitudes today exceeded some of the highest indices at high latitude in recent years and the aurora are now visible this far to the south.

 

The strongest earthquake in the world today was an M 5.4 in the Kermadec Islands, New Zealand. This epicenter was near local solar noon when the X5.8 flare occurred earlier in the day and was probably promoted by SFE and geomagnetic stresses. In the previous issue of this summary the Kermadec Islands had been pointed to as a possible area of interest in the current geomagnetic storm as:

 

"It is likely that a major earthquake will occur in the next 10 days most likely in the regions near the geomagnetic equator and/or at high auroral latitudes. Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific." (May 11, 2024)

 

While a similar M 5.4-5.5 quake hit the Kermadec Islands on April 25, 2024 the last of significantly larger magnitude in this area was an 6.1 on February 9, 2024. At the time this summary noted:

 

 

"A major solar flare of X3.3 occurred today (#9000 - SWPC). This is the strongest solar flare since an X5.0 on December 31, 2023 and probably had a great influence of the strong pulse of seismicity which followed and is described below. The stresses from this flare as well as those associated with the completion of the new moon tidal alignment today contributed to a strong enhancement of global seismicity especially at 103 degrees from Xinjiang, China today. This seismic enhancement included unusually strong earthquakes in western Los Angeles, California (M 4.7); Hawaii (M 5.7); an M 6.1 in the Kermadec Islands and an M 5.8 in northern Mindanao, Philippines.

 

...

 

The strongest earthquake in the world today was an M 6.1 in the Kermadec Islands, New Zealand. It was not reported felt in this remote area. This event occurred near local solar midnight and may have been promoted by tidal stresses which maximize near this hour. The last earthquake in this region of the Kermadec Islands  with M>=6.1 occurred on April 24, 2023 (M 7.1) and March 16, 2023 (M 7.0)." (February 9, 2024)

 

Forecasts 162839 had expected today's event within about 25 km was likely around May 9, 2024.

 

O: 12MAY2024 03:26:20  30.1S  177.8W MB=5.4  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P:  9MAY2024 162839    30.0S  178.0W 4.0-5.6 BAAAA  No. Kermadec Islands       

P:  9MAY2024 162842    31.0S  177.0W 4.0-5.4 BAAAA  So. Kermadec Islands       

P: 12MAY2024 163117    31.0S  178.0W 4.0-5.4 AAAAA  So. Kermadec Islands       

 

Another area which was expected to see enhanced seismicity at this time was Central America. This region was at local solar midnight for two of the largest X-class flares in the past three days and is considered likely to see a strong earthquake at this time as discussed in an earlier issue of this summary:

 

"A major X-class flare of X4.5 occurred early on May 6 around 5:35-7:00 UT maximizing about 6:30 UT. Longitudes most likely to be seismically activated by SFE from this flare are located near 90 West and 90 E and include Central America in the west and Indonesia, Taiwan, Philippines in the East. These are regions most likely to see strong or major events in the next several days related to this flare. Active areas at this time in these longitude bands include the aftershock zone of Taiwan and Central America where a moderately strong to strong earthquake is possible shortly." (May 10, 2024)

 

Solar Flare 1310 on May 10 occurred at the same time and was also considered likely to promote a strong earthquake in the region of Central America or Mexico, but this event has not yet occurred. The most active areas  of Chiapas, Mexico and Nicaragua have seen moderate quakes associated with the recent strong solar flares and geomagnetic storm. An M 4.5 did occur today off Chiapas, Mexico with a foreshock of M 4.0 six hours earlier. This could be a precursor to a stronger regional earthquake. Forecast 162626, 162895 and 162894 had expected enhanced seismicity in this region was likely within about 50 km of these epicenters around May 9-13. 

 

 

O: 11MAY2024 16:32:14  15.4N   93.3W ML=4.5  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 11MAY2024 18:48:25  15.9N   94.6W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 11MAY2024 10:43:59  15.2N   93.1W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P:  9MAY2024 162626    16.0N   94.0W 3.5-5.6 AAAAA  Chiapas, Mexico            

P: 11MAY2024 162894    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

P: 13MAY2024 162895    16.0N   94.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

 

An earthquake in Nicaragua of M 4.7 followed the same pattern described above for the events in Baja related to a strong M-class flare. On May 8, 2024 an M 4.7 occurred near today's epicenter in Nicaragua. At the time this summary noted:

 

 

"A series of moderate earthquakes in Guatemala, Nicaragua, Colombia and Ecuador

have occurred in the past two days - most near local solar noon or local solar

midnight.

 

"The most interesting of these was an M 4.7 in Nicaragua which occurred within minutes of local solar noon. This epicenter at 12 North latitude is exactly aub-solar when this event occurred, as is 12N latitude around the world today. This means this epicenter saw the sun at it's zenith as this earthquake occurred. This summary has previously argued that this alignment can promoted sub-solar seismicity. Today's event in Nicaragua also coincided with Solar Flare 520 (M7.9) which maximized at the time of today's earthquake in Nicaragua. (May 8, 2024)

 

 

NEIC reported today's earthquake of M 4.7 in Nicaragua was felt with intensity up to III in the area(s) of  Nicaragua in Diriamba.

 

Forecast 162639 had expected this event in Nicaragua was likely around May 9 within  about 100 km of the epicenter.

 

O: 12MAY2024 00:10:48  11.9N   86.3W MB=4.7  EMSC   NEAR COAST OF NICARAGUA      

P:  9MAY2024 162639    11.0N   87.0W 3.5-5.8 BAAAA  Nicaragua                  

 

An earthquake of M 4.9 occurred today in the region of the Andreanof Islands, Aleutians, Alaska. The last earthquake of M>=4.9 in the Andreanof Islands occurred as an M 5.0 on February 29, 2024. Like the earthquake (see above) in the Kermadec Islands, this lies at 176-177 West longitude and was near local solar noon  when the X5.8 flare occurred on May 11 and was probably promoted by SFE associated with that flare. Forecast 163058 had expected this earthquake in the Andreanof Islands was likely within about 50 km of this epicenter was likely around May 13.

 

O: 11MAY2024 10:58:54  51.9N  176.0W MB=4.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 13MAY2024 163048    51.7N  176.4W 3.5-4.9 AAAAA  Andreanoff Isls, 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: 11MAY2024 16:27:37  37.4N   71.9E MB=4.1  EMSC   TAJIKISTAN                    

P: 14MAY2024 162954    37.0N   71.0E 3.8-5.2 BAAAA  Hindu Kush/Pakistan        

 

O: 11MAY2024 09:44:38  24.0N  121.8E mb=4.8  EMSC   TAIWAN

O: 11MAY2024 21:47:10  24.0N  121.6E ML=4.0  EMSC   TAIWAN

O: 11MAY2024 19:07:32  24.2N  121.7E mb=4.2  EMSC   TAIWAN

O: 11MAY2024 11:09:18  23.9N  121.6E ML=4.2  EMSC   TAIWAN                       

P: 13MAY2024 162936    24.0N  123.0E 4.0-5.6 AAAAA  Taiwan                     

 

EMSC reported this earthquake of M 4.6 in Taiwan was felt with intensity up to III in the area(s) of  Taiwan in Hsinchu County.

 

O: 11MAY2024 10:26:37  27.3N   53.7E MB=4.8  EMSC   SOUTHERN IRAN                

P: 13MAY2024 162933    28.0N   55.0E 3.5-5.1 AAAAA  So. Iran/Persian Gulf      

 

NEIC reported this earthquake of M 4.8 in Iran was felt with intensity up to VI in the area(s) of  Iran in Gerash.

 

O: 11MAY2024 10:43:32  31.6N   51.1E MB=4.4  EMSC   CENTRAL IRAN                 

P: 13MAY2024 162989    30.0N   52.0E 3.8-5.2 ABAAA  So. Iran                   

 

O: 11MAY2024 13:19:17  55.1N  112.0E MB=3.8  EMSC   LAKE BAYKAL REGION, RUSSIA   

P: 13MAY2024 163061    56.0N  110.0E 3.0-4.5 AABAA  So. Siberia                

 

INDONESIA AND PHILIPPINES

 

O: 11MAY2024 16:25:30   2.0N  121.5E ML=4.0  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 11MAY2024 162856     1.0N  120.0E 4.0-5.5 AABAA  Celebes Sea                

 

O: 11MAY2024 08:56:28   2.4S  128.4E ML=4.1  EMSC   CERAM SEA, INDONESIA         

P: 12MAY2024 162871     3.0S  127.0E 4.0-5.4 AABAA  Ceram area                  

 

O: 11MAY2024 20:52:58   7.7S  127.8E ML=4.3  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 18MAY2024 162868     7.0S  126.0E 4.0-5.4 CABAA  Banda Sea                  

 

CENTRAL AND SOUTH AMERICA

 

 

O: 12MAY2024 01:01:01  11.8N   73.5W MB=4.6  EMSC   NEAR NORTH COAST OF COLOMBIA 

P: 15MAY2024 162913    10.0N   70.0W 3.4-5.0 BBCAA  No. Venezuela              

 

O: 12MAY2024 00:10:48  11.9N   86.3W MB=4.7  EMSC   NEAR COAST OF NICARAGUA      

P:  9MAY2024 162639    11.0N   87.0W 3.5-5.8 BAAAA  Nicaragua                   

 

O: 11MAY2024 16:32:14  15.4N   93.3W ML=4.5  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 11MAY2024 18:48:25  15.9N   94.6W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 11MAY2024 10:43:59  15.2N   93.1W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P:  9MAY2024 162626    16.0N   94.0W 3.5-5.6 AAAAA  Chiapas, Mexico            

P: 11MAY2024 162894    15.0N   93.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

P: 13MAY2024 162895    16.0N   94.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

 

O: 11MAY2024 13:15:43  16.5N  101.0W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 13MAY2024 162915    17.0N  100.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 11MAY2024 20:43:46  16.1N   95.2W ML=4.3  EMSC   OFFSHORE OAXACA, MEXICO

O: 12MAY2024 02:34:31  16.9N   94.6W ML=4.0  EMSC   OAXACA, MEXICO               

P:  9MAY2024 162626    16.0N   94.0W 3.5-5.6 BAAAA  Chiapas, Mexico            

P: 13MAY2024 162895    16.0N   94.0W 3.5-5.5 AAAAA  Chiapas, Mexico            

 

O: 11MAY2024 18:39:43  18.7N   64.4W MD=3.4  EMSC   VIRGIN ISLANDS REGION        

P: 13MAY2024 162901    19.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

 

O: 11MAY2024 13:51:09  19.5N   65.4W MD=3.8  EMSC   PUERTO RICO REGION           

P: 13MAY2024 162901    19.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

 

O: 11MAY2024 11:46:40  21.9N   99.6W ML=4.0  EMSC   SAN LUIS POTOSI, MEXICO      

P:  8MAY2024 162645    18.0N  100.0W 3.5-5.1 BCAAA  Oaxaca, Mexico             

 

O: 11MAY2024 07:27:54  27.8N  111.8W ML=3.5  EMSC   GULF OF CALIFORNIA           

P: 14MAY2024 162925    28.0N  112.0W 3.5-5.3 BAAAA  Gulf of California         

 

O: 11MAY2024 10:58:01  32.6S   71.8W ML=4.3  EMSC   OFFSHORE VALPARAISO, CHILE   

P:  7MAY2024 162836    33.0S   72.0W 4.0-5.6 BAAAA  Central Chile               

P: 12MAY2024 163111    34.0S   72.0W 4.0-5.6 ABAAA  Central Chile              

 

EMSC reported this earthquake of M 4.1 in Chile was felt with intensity up to III in the area(s) of  Chile in Valparaiso at Vina del Mar.

 

 

AFRICA AND EUROPE

 

O: 11MAY2024 17:07:03  24.8S   30.9E ML=3.5  EMSC   SOUTH AFRICA                 

P: 12MAY2024 163098    24.0S   30.0E 3.0-4.9 AAAAA  Rep. South Africa          

 

O: 11MAY2024 16:59:48  35.5N    3.6W ML=2.9  EMSC   STRAIT OF GIBRALTAR          

P: 11MAY2024 162960    35.0N    4.0W 3.5-4.9 AAAAA  Morocco/Spain              

 

O: 11MAY2024 13:23:06  38.8N   48.6E ML=4.4  EMSC   AZERBAIJAN

O: 11MAY2024 13:21:47  38.8N   48.8E MB=5.1  EMSC   CASPIAN SEA, OFFSHORE AZERBAIJ

P: 12MAY2024 162966    36.0N   49.0E 3.8-5.6 ACAAA  No. Iran                   

 

NEIC reported this earthquake of M 5.1 in Azerbaijan was felt with intensity up to VI in the area(s) of  Azerbaijan in Boradigah.

EMSC reported moderate to strong shaking in Azerbaijan and in Iran at Tabriz with long shaking in some communities.

An aftershock of M 4.4 was also reported felt.

 

SOUTHWEST PACIFIC

 

O: 11MAY2024 18:27:05  15.1S  168.1E MW=5.2  EMSC   VANUATU                      

P: 11MAY2024 163091    15.0S  167.0E 4.0-5.7 AAAAA  Vanuatu Islands             

 

O: 11MAY2024 11:49:57  19.3S  176.2W MB=5.0  EMSC   FIJI REGION                  

P: 11MAY2024 163102    20.0S  174.0W 4.0-5.5 AABAA  Tonga Islands              

P: 12MAY2024 163089    18.0S  177.0W 4.0-5.4 ABAAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 12MAY2024 04:21:01  13.1N   52.3E MB=4.5  EMSC   SOCOTRA REGION               

P:  9MAY2024 162623    15.0N   56.0E 3.5-5.3 BBCAA  Arabian Sea                

P: 13MAY2024 162892    15.0N   56.0E 3.5-5.2 BBCAA  Arabian Sea                 

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 12MAY2024 06:31:49  28.4S  179.7W MB=4.9  EMSC   KERMADEC ISLANDS REGION      

P: 12MAY2024 163097    29.0S  178.0W 4.0-5.7 AAAAA  No. Kermadec Islands       

 

O: 12MAY2024 03:26:20  30.1S  177.8W MB=5.4  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P:  9MAY2024 162839    30.0S  178.0W 4.0-5.6 BAAAA  No. Kermadec Islands       

P:  9MAY2024 162842    31.0S  177.0W 4.0-5.4 BAAAA  So. Kermadec Islands       

P: 12MAY2024 163117    31.0S  178.0W 4.0-5.4 AAAAA  So. Kermadec Islands       

 

O: 12MAY2024 04:01:01  33.5S  179.8E MB=4.6  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 15MAY2024 163117    33.0S  179.0W 4.0-5.4 BAAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 12MAY2024 03:03:30  37.2N  140.8E ML=3.6  EMSC   EASTERN HONSHU, JAPAN        

P: 10MAY2024 162697    37.0N  139.0E 3.5-5.1 AAAAA  No. Honshu, Japan          

P: 13MAY2024 162973    38.0N  140.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

O: 12MAY2024 07:05:40  47.9N  153.2E MB=4.3  EMSC   KURIL ISLANDS                

P:  5MAY2024 162763    47.0N  153.0E 3.5-5.4 CAAAA  So. Kurils                 

P:  9MAY2024 162746    47.0N  155.0E 3.5-5.6 BAAAA  NE Pacific                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 11MAY2024 10:01:41  30.8N  114.4W ML=3.3  EMSC   GULF OF CALIFORNIA           

P: 14MAY2024 162978    30.4N  114.3W 2.0-4.2 BAAAA  SW U.S.A                   

 

O: 12MAY2024 06:28:15  33.1N  115.5W ML=2.1  EMSC   SOUTHERN CALIFORNIA

O: 12MAY2024 06:27:14  33.1N  115.6W ML=2.3  EMSC   SOUTHERN CALIFORNIA          

P: 15MAY2024 162981    32.9N  115.6W 2.5-4.5 BAAAA  So. California             

 

O: 12MAY2024 07:01:40  36.0N  117.7W ML=2.5  EMSC   CENTRAL CALIFORNIA           

P: 12MAY2024 162940    36.2N  117.9W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 12MAY2024 02:06:19  38.8N  122.9W MD=2.3  EMSC   NORTHERN CALIFORNIA          

O: 12MAY2024 04:18:07  38.8N  122.8W MD=2.6  EMSC   NORTHERN CALIFORNIA

P: 14MAY2024 162950    38.9N  122.8W 2.5-4.8 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.6 in Northern California was felt with intensity up to IV in the area(s) of  Northern California in Cobb.

 

O: 11MAY2024 14:44:30  40.2N  121.1W MD=2.5  EMSC   NORTHERN CALIFORNIA

O: 11MAY2024 14:49:24  40.2N  121.2W MD=2.1  EMSC   NORTHERN CALIFORNIA

O: 11MAY2024 14:53:15  40.2N  121.2W MD=2.1  EMSC   NORTHERN CALIFORNIA          

P:  8MAY2024 162752    40.0N  120.9W 2.5-4.9 BAAAA  Northern California        

 

NEIC reported this earthquake of M 2.6 in Northern California was felt with intensity up to III in the area(s) of  Northern California in Prattville.

 

 

ALASKA

 

O: 11MAY2024 10:58:54  51.9N  176.0W MB=4.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 13MAY2024 163048    51.7N  176.4W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 11MAY2024 07:57:57  48.8N  122.5W ML=2.2  EMSC   SAN JUAN ISLANDS REG, WASHINGT

P:  5MAY2024 162767    48.9N  122.1W 2.0-4.3 CAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 12MAY2024 00:27:46  31.7N  104.5W ML=2.1  EMSC   WESTERN TEXAS

O: 12MAY2024 04:04:22  31.7N  104.6W ML=2.6  EMSC   WESTERN TEXAS

O: 12MAY2024 04:14:09  31.6N  104.6W ML=2.1  EMSC   WESTERN TEXAS                

P: 14MAY2024 162977    31.4N  104.3W 2.0-4.2 AAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 11MAY2024 12:05:46  40.7N   74.8W ML=0.4  ANSS   CALIFON NEW JERSEY           

P: 10MAY2024 162748    42.0N   74.0W 2.0-4.1 ABAAA  New York State             

P: 14MAY2024 163022    41.0N   74.0W 2.0-4.1 BAAAA  New York State             

 

HAWAII

 

O: 12MAY2024 05:59:24  18.9N  155.7W ML=3.5  EMSC   HAWAII REGION, HAWAII        

 

NEIC reported this earthquake of M 3.5 in Hawaii was felt with intensity up to III in the area(s) of  southwest Hawaii in Wai'ohinu.

 

GEOMAGNETIC STORM AND MAJOR SOLAR FLARE WITH MODERATE QUAKE IN SOUTHERN ALASKA

 

EARTHQUAKE SUMMARY FOR MAY 10, 2024

 

 

A major solar flare occurred today with X5.8. Following is the data from

SWPC for this flare:

 

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

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

 

1680       0110   0123      0139   X5.8      (May 11, 2024)   6.4E-01  

 

It was followed at the end of the flare by an M 4.6 earthquake in Southern Alaska. This earthquake was reported by EMSC to have been felt with light to moderate intensity in Southern Alaska at Anchor Point and Anchorage.

 

This event occurred near local noon in Alaska and was probably triggered by SFE from this X5.8 flare. NEIC reported this earthquake in Southern Alaska was felt with intensity up to IV in Anchor Point, Alaska. The last earthquake in Southern Alaska within about 200 km of this epicenter with M>=4.6 occurred on December 16, 2023 also with M 4.6-4.7. The last such event in the area of significantly larger magnitude was an M 5.0 on July 28, 2023. Forecasts 162794 and 163068 had expected today's activity within about 50 km was likely around May 5-12.

 

O: 11MAY2024 01:53:04  59.8N  152.9W MB=4.6  EMSC   SOUTHERN ALASKA               

P:  5MAY2024 162794    60.3N  153.0W 3.2-4.9 CAAAA  Central Alaska             

P: 12MAY2024 163068    60.2N  152.7W 3.2-4.9 AAAAA  Central Alaska             

 

An earthquake of M 4.2 also occurred in the Rat Islands, Aleutians, Alaska today. It was not reported felt in this remote epicentral area. This event occurred within minutes of local solar noon and was probably triggered by geomagnetic and tidal stresses associated with the major geomagnetic storm today. Forecasts 162784 and 162772 had expected this activity in the Rat Islands was likely within about 100 km around May 6-9.

 

O: 10MAY2024 23:54:52  51.8N  178.1E MB=4.2  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P:  6MAY2024 162785    52.0N  179.0E 4.0-5.6 BAAAA  Rat Islands                

P:  9MAY2024 162772    52.1N  180.0E 3.5-5.1 AABAA  Andreanoff Isls, Aleutians 

 

Another event which was probably immediately triggered by SFE from this flare occurred as an M 4.5 in Kamchatka. This epicenter in Kamchatka was within minutes of local solar noon at the peak of the X5.8 flare. EMSC reported this earthquake was felt in Kamchatka, Russia in Vilyuchinsk, Petropavlovsk-Kamchatsky, and Pionerskoye. Forecast 162778 had expected this activity in Kamchatka was likely in early May.

 

O: 11MAY2024 03:37:32  52.5N  159.1E MB=4.5  EMSC   OFF EAST COAST OF KAMCHATKA  

P:  6MAY2024 162778    54.0N  159.0E 4.0-5.8 BBAAA  Kamchatka                  

 

An M 4.6 also occurred in Taiwan shortly after the end of this flare. Recent seismicity in Taiwan suggests strong SFE triggering in Taiwan at this time. This activity in Taiwan is probably aftershocks of the M 5.8 which occurred earlier in the day. This was discussed in the previous issue of this summary (in part) as:

 

"The strongest earthquake in the world today was an M 5.8-6.0 aftershock in Taiwan. NEIC reported it was felt with intensity up to VI in Hualien City.

 

...

 

This earthquake followed at the end of a major X3.9 class solar flare (#1310) and was probably triggered by Solar Flare Effects (SFE). No major damage was reported by the press but minor damage to structures damaged in previous earthquakes in this area is likely" (May 10, 2024)

 

Forecast 162667 had expected this activity in Taiwan was likely around May 7.

 

O: 10MAY2024 08:10:22  23.9N  121.6E ML=4.2  EMSC   TAIWAN

O: 10MAY2024 23:07:43  23.9N  121.6E ML=4.0  EMSC   TAIWAN

O: 10MAY2024 07:45:19  24.2N  121.9E Mw=5.8  EMSC   TAIWAN

O: 11MAY2024 05:16:02  23.8N  121.7E MW=4.6  EMSC   TAIWAN                       

P:  7MAY2024 162667    23.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

 

The X5.8 flare was accompanied by a severe geomagnetic storm which occurred today with high latitude AP 146 and Planetary AP 118. KP index was at its highest possible value of 9 around May 10 at 20:00 through May 11 at 04:00 UT. This appears to be the most disturbed the earth's geomagnetic field has been in the current solar cycle. It also includes a proton storm which together should reduce sort-term seismicity but enhance seismicity around May 14-20. It is likely that a major earthquake will occur in the next 10 days most likely in the regions near the geomagnetic equator and/or at high auroral latitudes. Effects with the X5.4 flare today are most likely in the Kurils, Kamchatka, western Alaska and the Aleutians including the Andreanof and Rat Islands and the Kermadec/Tonga/Vanuatu/Fiji/New Zealand areas of the South Pacific. The last time a severe storm hit the geomagnetic field was March 24, 2024 (high latitude AP 100, Planetary AP 64) when this summary noted:

 

"The last time high latitude AP was at 100 or greater was on November 4, 2021 when it reached 131. Planetary AP was 69 on that date.

 

"The last time high latitude AP exceeded 120 was on December 15, 2006 when it hit AP 120 with global AP at 104. The earthquake in 2006 was followed several days later by an M 7.0 in Taiwan. The last time the AP disturbance at high latitudes exceeded today's index of 131 was on September 11-12 (AP 131 and 136).

The storm in September, 2005 was accompanied by an M 7.7 in New Ireland and an M 6.4 in the Nias region of Indonesia. This history suggests that a major earthquake is likely in the next several days. In general, strong geomagnetic storms see major earthquakes at the time of the storm's commencement or about 4-5 days later as the ionospheric ring currents at high latitude and about 10 degrees from the geomagnetic equator reemerge after the disturbance. This often includes a strong to major  earthquake. At this time such an event appears most likely near the geomagnetic equator or at high latitudes ... (November 5, 2021, March 25, 2024)

 

Today's geomagnetic storm is expected to continue for several days. The last time a geomagnetic storm of equal or greater disturbance occurred was on  October 29-30, 2003 when planetary AP reached 189 with high latitude AP 197 and mid-latitude AP 199 on October 29 and 162 planetary AP on October 30, 2003.  The Space weather center has warned of electrical damage to the grid including some blackouts as transformers experience damage from telluric currents. Satellite communication, navigation Radio Communications, Spacecraft and GPS signals are also at risk as this storm continues and more CME's hit the earth environment. The storm of October 2003 cause power outages in Sweden and other areas and damaged transformers as far as South Africa according to SWPC. At the time of the 2003 storm this summary noted:

 

 

"The extremely strong geomagnetic storm which began yesterday continued unabated today and into October 30. This is the strongest storm in many months. The A-index for this storm for October 29 is 197 at high latitudes and 199 at middle latitudes. The planetary index is 189. The indicies for October 30 are likely to be even higher. This is by far the strongest geomagnetic storm of the current solar cycle. A second strong X-class flare also occurred today in the class X10. The following parameters were recorded. The earthquake in Los Angeles followed this flare by about 2 hours." (October 30, 2003)

 

The most immediate earthquake triggered by the storm of late October, 2003 was an M 7.0 off the east coast of Honshu, Japan on October 31, 2003. At the time this summary noted:

 

"A strong earthquake with magnitude between M 6.6 (National Earthquake Information Service - NEIS) and 7.1 (Geological Survey of Russia - GSR) occurred today off the northern coast of eastern Honshu. This event was followed by an M 4.8 and smaller aftershocks. The mainshock was felt lightly along the  eastern coast of Honshu according to CNN. The earthquake shock buildings as far south as Tokyo for as much as 30 second. A minor tsunami of about 30-40 cm height was recorded was recorded. Earthquakes of this size occasionally  trigger tsunamis, but usually trigger landslides which secondarily trigger tsunamis.  An M 7.0 earthquake occurred about 150 km northwest of this epicenter on May 26, 2003. The last event in the general area larger than M 7.1  occurred on November 1, 1989 with M 7.4." (October 31, 2003)

 

This event was particularly noteworthy because it was the strongest precursor of the M 9+ quake off eastern Honshu of March 11, 2011 which, along with a major tsunami killed at least 20,000 and caused major damage in Honshu, Japan, an event and which also was closely associated with major X-class flares and a strong geomagnetic storm. A similar M 6.5-7.0 hit the area on August 16, 2005. Honshu, Japan is particular prone to geomagnetic triggering. It is also  noteworthy that the X5.8 flare today coincided with the geomagnetic storm. This is likely to delay the occurrence of major earthquakes be several days. That earthquake was also accompanied by a strong geomagnetic storm as  noted in the summary at that time:

 

 

"A strong earthquake of M 6.7-7.2 hit the region of east-central Honshu, Japan today. This is the strongest event in the region (34-40N 135-145E) since similar earthquakes hit near this epicenter on May 26 and Oct. 31, 2003.

 

...

 

A strong geomagnetic change in the perpendicular field began at the time of this earthquake as registered by the GOES-12 satellite. This geomagnetic excursion was accompanied by a moderate geomagnetic storm which began between 02:45 UT (the earthquake in Honshu occurred at 02:46 UT). The geomagnetic storm appears to be linked to a sudden increase in long wavelength solar X-ray Flux which experienced a strong 15% increase in the period  between 02:46 and 02:50 UT according to GOES-12 data. The effect of this would have been at maximum over the epicenter which was within a few minutes of solar noon-time at the time of the quake (solar noon was at 140E longitude) at the time of the earthquake. Maximum solar effects occur at longitudes at solar noon or solar midnight." (August 16, 2005)

 

Other strong earthquake occurred with this storm on November 2, 2003 in South Island, New Zealand (M 6.4); Colombia (M 6.0, November 5, 2003); Loyalty Islands (M 6.6 November 6, 2003); Central Mid-Atlantic (M 6.6 November 9, 2003); Kermadec Islands (November 11, 2003, M 6.1-6.2 series); among others.  A similar series is expected in the next week following the current geomagnetic storm.

 

The strongest earthquake to occur in connection with this storm was an M 7.8 in the Rat Islands, Aleutians, Alaska which occurred on November 17, 2003. At the time this summary noted in this regard:

 

"A very large earthquake occurred tonight in the Rat Islands, Aleutians region of Alaska. This event which initially registered between M 7.3 (National  Earthquake Information Service - NEIS) and 7.9 (Centre Seismologique Europeo-

Mediterranean, Strasbourg – CSEM/EMSC) was probably felt in the epicentral area. A moderate sized tsunami is expected with wave heights between 10 cm and 2 m. The most likely locations to observed tsunamis would be islands in the central Aleutians, Hawaii and areas along the coast of South America. At this point however no tsunami has yet been reported by data gathering groups. This is the third large earthquake to hit the Rat Islands in the past year and is probably related to stress redistribution from those earlier events. Other events of M 7.0 occurred about 50 km to the west of today's epicenter on March 17, 2003 and about 150 km west on June 23, 2003. Neither of these events caused more than minor tsunamis, but tsunami height is very dependent on depth, magnitude and character of the earthquake rupture. The National Earthquake Information Service - NEIS is placing this event at shallow depth with larger magnitude so a tele-tsunami is a distinct possibility from this earthquake. This is the largest event in the U.S. or Canada since the Denali National Park Earthquake in Alaska which occurred on Nov. 3, 2002 and the strongest in North America since the Colima, Mexico earthquake of M 7.8 that occurred on January 22, 2003." (November 17, 2003)

 

 

 

An earthquake of M 4.3 was also lightly felt today in the region near Vancouver Island and Tofino, British Columbia, Canada where NEIC reported possible intensity III. This is probably an aftershock of the M 5.0 that hit this epicenter on May 3, 2024. At the time this summary noted:

 

 

"The strongest earthquake in the U.S. or Canada today was an M 5.0 in British Columbia, Canada. NEIC reported it was felt with intensity up to V in Tofino, Canada. This was the largest earthquake in the world today outside the swarm in the Fox Islands, Aleutians which included events of M 5.5, 5.5 and 5.6 among others. The earthquake in British Columbia was not at a typical epicenter for the region but occurred in Vancouver Island where it was widely felt. This earthquake occurred at the tail end of a major X-class solar flare (#7680)" (May 3, 2024)

 

Forecasts 162765 and 163040 had expected this activity in the Vancouver Island are was likely within about 50 km in early May, 2024.

 

O: 10MAY2024 11:44:38  48.8N  128.8W MB=4.3  EMSC   VANCOUVER ISLAND, CANADA REGIO

O: 10MAY2024 11:44:38  48.7N  128.8W MB=4.3  ECAN OF PORT HARDY, BC  

P:  4MAY2024 162765    49.3N  129.0W 2.8-5.1 CAAAA  Vancouver Island area      

P: 11MAY2024 163040    48.7N  129.0W 2.8-5.1 AAAAA  Vancouver Island area      

 

 

An unusual earthquake of M 3.8 also occurred today with the geomagnetic storm in north Mexico in the State of Coahuila. The solar eclipse of April 8 was at its maximum at this epicenter and may have promoted subsequent seismicity there. This is the strongest earthquake in the region of Coahuila within about 150 km of this epicenter since an M 4.7 on December 5, 1993. The only other such event in this area in the past 35 years occurred on October 1, 1992 with M 3.8.

 

Forecast 162662 had expected regional seismic enhancement around May 3.

 

O: 10MAY2024 18:32:16  27.3N  103.0W ML=3.8  EMSC   COAHUILA, MEXICO             

P:  3MAY2024 162662    28.0N   99.0W 3.0-4.4 CACAA  Northern Mexico            

 

The strongest earthquake in the world today was an M 5.6 in the area of New Britain, PNG. This is probably an aftershock of an M 6.5 of April 14, 2024 – the largest to date. At the time this summary noted:

 

"The strongest earthquake in the world today was an M 6.5 in Papua New Guinea. NEIC reported it was felt with intensity up to VI in Kimbe, New Guinea. The last earthquake within about 250 km of this epicenter in New Guinea with  M>=6.5 occurred on May 14, 2019." (April 14, 2024)

 

Forecasts 162603 and 162878 had expected today's event within about 150 km was likely around May 7-13.

 

O: 10MAY2024 11:48:41   5.2S  151.9E MW=5.6  EMSC   NEW BRITAIN REGION, P.N.G.   

P:  7MAY2024 162603     4.0S  152.0E 4.0-5.7 BBAAA  New Britain                

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 BAAAA  New Ireland                

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: 10MAY2024 08:10:22  23.9N  121.6E ML=4.2  EMSC   TAIWAN

O: 10MAY2024 23:07:43  23.9N  121.6E ML=4.0  EMSC   TAIWAN

O: 10MAY2024 07:45:19  24.2N  121.9E Mw=5.8  EMSC   TAIWAN

O: 11MAY2024 05:16:02  23.8N  121.7E MW=4.6  EMSC   TAIWAN                       

P:  7MAY2024 162667    23.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

 

O: 11MAY2024 02:09:18  52.1N   94.7E MB=4.0  EMSC   SOUTHWESTERN SIBERIA, RUSSIA 

P:  8MAY2024 162787    50.0N   88.0E 3.0-4.6 BCCAA  So. Siberia                

 

O: 11MAY2024 03:37:32  52.5N  159.1E MB=4.5  EMSC   OFF EAST COAST OF KAMCHATKA  

P:  6MAY2024 162778    54.0N  159.0E 4.0-5.8 BBAAA  Kamchatka                  

P: 12MAY2024 163052    52.0N  158.0E 4.0-5.7 AAAAA  Kamchatka                  

 

INDONESIA AND PHILIPPINES

 

O: 10MAY2024 15:16:53   1.6N  127.1E ML=4.1  EMSC   HALMAHERA, INDONESIA

O: 11MAY2024 03:02:16   1.1N  126.8E MB=4.9  EMSC   MOLUCCA SEA                  

P: 11MAY2024 162862     2.0N  127.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 11MAY2024 05:25:35   3.1S  131.0E ML=4.0  EMSC   SERAM, INDONESIA             

P:  7MAY2024 162618     1.0S  133.0E 4.0-5.4 BCAAA  West Irian, PNG            

 

O: 10MAY2024 15:20:47   3.6S  101.5E MB=5.1  EMSC   SOUTHERN SUMATRA, INDONESIA  

P:  8MAY2024 162614     2.0S  100.0E 4.0-5.4 ABBAA  So. of Sumatera            

P: 11MAY2024 162884     4.0S  102.0E 4.0-5.6 AAAAA  So. of Sumatera            

 

O: 10MAY2024 18:53:39   4.8S  144.6E MB=4.7  EMSC   NEAR N COAST OF NEW GUINEA, PN

P:  9MAY2024 162610     4.0S  143.0E 4.0-5.4 AABAA  Papua New Guinea           

P: 12MAY2024 162877     4.0S  145.0E 4.0-5.4 AAAAA  New Ireland                

 

O: 10MAY2024 11:48:41   5.2S  151.9E MW=5.6  EMSC   NEW BRITAIN REGION, P.N.G.   

P:  7MAY2024 162603     4.0S  152.0E 4.0-5.7 BBAAA  New Britain                 

P: 13MAY2024 162878     6.0S  151.0E 4.0-5.4 BAAAA  New Ireland                

 

O: 10MAY2024 10:42:52   6.7S  155.3E MB=4.9  EMSC   BOUGAINVILLE REGION, P.N.G.  

P: 11MAY2024 162876     6.0S  154.0E 4.0-5.5 AABAA  New Britain                

P: 13MAY2024 162885     6.0S  155.0E 4.0-5.4 BAAAA  Solomon Islands            

 

O: 10MAY2024 18:39:35   8.4N  127.1E ML=4.0  EMSC   PHILIPPINE ISLANDS REGION    

O: 10MAY2024 08:08:47   8.8N  126.7E ML=4.2  EMSC   MINDANAO, PHILIPPINES        

P:  9MAY2024 162590     9.0N  127.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 10MAY2024 19:34:38   9.0S  113.0E MB=4.9  EMSC   SOUTH OF JAVA, INDONESIA     

P:  2MAY2024 162611     9.0S  113.0E 4.0-5.4 CAAAA  So. of Bali                

 

EMSC reported this earthquake of M 4.9 in Java, Indonesia was felt with intensity up to III in the area(s) of  Java, Indonesia in Kuta Selatan.

BMG reported intensity III in Kab. Jember and II in Kab Ponorog, Trenggalek, Tulungagung. Blitar, Malang, Lumajang, Banyuwangi, Bondowoso, Situbondo, Probolinggo among others.

 

O: 10MAY2024 19:50:48   9.9N  124.2E ML=4.1  EMSC   BOHOL, PHILIPPINES           

P:  9MAY2024 162634    10.0N  125.0E 3.5-4.9 AAAAA  Luzon, Philippines         

 

O: 10MAY2024 13:19:46  10.0S  107.8E MB=4.8  EMSC   SOUTH OF JAVA, INDONESIA     

P:  6MAY2024 162613     9.0S  107.0E 4.0-5.4 BAAAA  So. of Java                

 

 

CENTRAL AND SOUTH AMERICA

 

O: 10MAY2024 12:34:46   8.9S   75.4W ML=5.0  EMSC   CENTRAL PERU                 

P:  8MAY2024 162595     9.0S   75.0W 3.5-5.1 AAAAA  Brazil                     

 

O: 10MAY2024 10:04:43  15.4N   94.0W ML=4.2  EMSC   OFFSHORE CHIAPAS, MEXICO     

P:  9MAY2024 162626    16.0N   94.0W 3.5-5.6 AAAAA  Chiapas, Mexico            

 

O: 11MAY2024 02:39:46  15.6S   74.8W ML=4.0  EMSC   NEAR COAST OF SOUTHERN PERU  

P: 14MAY2024 163085    16.0S   74.0W 4.0-5.9 BAAAA  So. Peru/Bolivia           

 

O: 10MAY2024 11:22:25  17.4N  101.6W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P:  7MAY2024 162638    18.0N  103.0W 3.5-5.2 BABAA  Michoacan, Mexico          

P:  8MAY2024 162645    18.0N  100.0W 3.5-5.1 AABAA  Oaxaca, Mexico             

 

O: 10MAY2024 20:32:20  18.8N   69.7W ML=3.3  EMSC   DOMINICAN REPUBLIC           

P: 13MAY2024 162917    18.0N   69.0W 3.4-4.9 BAAAA  Puerto Rico                

 

O: 10MAY2024 15:27:37  23.0S   66.3W ML=4.3  EMSC   JUJUY, ARGENTINA             

P:  7MAY2024 162823    22.0S   68.0W 4.0-5.4 BABAA  Argentina                  

 

O: 11MAY2024 06:30:30  25.3S   64.7W ML=4.0  EMSC   SALTA, ARGENTINA             

P:  6MAY2024 162824    24.0S   64.0W 4.0-5.5 BBAAA  Argentina                  

 

O: 10MAY2024 18:32:16  27.3N  103.0W ML=3.8  EMSC   COAHUILA, MEXICO             

P:  3MAY2024 162662    28.0N   99.0W 3.0-4.4 CACAA  Northern Mexico            

 

 

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

 

AFRICA AND EUROPE

 

O: 10MAY2024 12:56:14  38.2N   20.4E ML=4.2  EMSC   GREECE                       

P: 10MAY2024 162695    39.0N   22.0E 3.0-4.4 AABAA  No. Greece                 

P: 12MAY2024 162964    37.0N   20.0E 3.0-4.6 ABAAA  No. Greece                 

 

EMSC reported these earthquakes of M 4.0 and  M 4.2 in Greece were felt with intensity up to III in the area(s) of  Greece at Soullaroi, Lixouri, Argostoli, Monopolata, Kleismata, Patras with a loud rumbling and sharp jolt.

 

O: 10MAY2024 18:03:24  39.5N   25.8E MW=3.8  EMSC   AEGEAN SEA                   

P:  7MAY2024 162669    39.0N   27.0E 3.0-4.6 BAAAA  Aegean Sea                 

 

O: 10MAY2024 11:26:10  40.8N   14.1E MD=3.6  EMSC   SOUTHERN ITALY

O: 10MAY2024 11:25:51  40.8N   14.1E MD=3.7  EMSC   SOUTHERN ITALY               

P:  6MAY2024 162739    41.0N   15.0E 3.0-5.3 BAAAA  Italy                      

 

SOUTHWEST PACIFIC

 

O: 11MAY2024 00:26:32  10.2S  164.9E MB=4.5  EMSC   SANTA CRUZ ISLANDS REGION    

P:  4MAY2024 162820    11.0S  163.0E 4.0-5.5 CABAA  Vanuatu Islands            

 

O: 10MAY2024 14:19:12  20.5S  173.7W MB=4.8  EMSC   TONGA                        

P: 11MAY2024 163102    20.0S  174.0W 4.0-5.5 AAAAA  Tonga Islands              

 

O: 10MAY2024 12:07:25  20.4S  178.2W mb=4.5  EMSC   FIJI REGION

O: 10MAY2024 15:33:42  20.6S  178.0W MB=4.5  EMSC   FIJI REGION                  

P:  9MAY2024 162832    21.0S  178.0W 4.0-5.7 AAAAA  Tonga Islands              

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 10MAY2024 09:42:03  30.4S  117.7E ML=2.8  EMSC   WESTERN AUSTRALIA            

P:  3MAY2024 162834    30.0S  118.0E 2.0-3.4 CAAAA  Central Australia          

P: 12MAY2024 163107    31.0S  117.0E 2.0-4.5 AAAAA  So. Australia              

 

JAPAN AND KURIL ISLANDS

 

O: 10MAY2024 18:29:33  30.9N  130.8E MB=4.5  EMSC   KYUSHU, JAPAN                 

P:  7MAY2024 162690    30.0N  131.0E 3.5-5.0 BAAAA  Kyushu, Japan area         

P: 11MAY2024 162958    30.0N  131.0E 3.5-4.9 AAAAA  Kyushu, Japan area         

 

O: 11MAY2024 00:47:15  41.7N  144.5E MB=5.0  EMSC   HOKKAIDO, JAPAN REGION        

P:  9MAY2024 162738    41.0N  143.0E 3.5-5.4 AAAAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 10MAY2024 22:33:35  30.6N  116.2W ML=3.2  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 ABAAA  So. California             

 

O: 11MAY2024 05:18:39  32.2N  115.3W ML=2.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 11MAY2024 05:47:56  32.2N  115.3W ML=2.6  EMSC   BAJA CALIFORNIA, MEXICO      

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 AAAAA  So. California             

 

O: 10MAY2024 10:01:01  35.9N  117.7W ML=2.3  EMSC   CENTRAL CALIFORNIA           

P: 12MAY2024 162940    36.2N  117.9W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 10MAY2024 21:02:47  36.1N  115.2W ML=2.0  EMSC   LAS VEGAS URBAN AREA, NEVADA 

P:  4MAY2024 162674    37.8N  115.8W 2.5-4.4 CBAAA  California/Nevada area     

 

O: 10MAY2024 17:11:43  38.1N  122.1W MD=2.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 12MAY2024 162949    37.8N  122.0W 2.5-4.5 AAAAA  Central California          

 

O: 10MAY2024 12:28:18  38.8N  121.4W MD=2.2  EMSC   NORTHERN CALIFORNIA          

P: 12MAY2024 162949    37.8N  122.0W 2.5-4.5 AAAAA  Central California         

 

 

ALASKA

 

O: 10MAY2024 23:54:52  51.8N  178.1E MB=4.2  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P:  6MAY2024 162785    52.0N  179.0E 4.0-5.6 BAAAA  Rat Islands                

P:  9MAY2024 162772    52.1N  180.0E 3.5-5.1 AABAA  Andreanoff Isls, Aleutians 

 

O: 11MAY2024 01:53:04  59.8N  152.9W MB=4.6  EMSC   SOUTHERN ALASKA              

P:  5MAY2024 162794    60.3N  153.0W 3.2-4.9 CAAAA  Central Alaska             

P: 12MAY2024 163068    60.2N  152.7W 3.2-4.9 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 10MAY2024 11:44:38  48.8N  128.8W MB=4.3  EMSC   VANCOUVER ISLAND, CANADA REGIO

O: 10MAY2024 11:44:38  48.7N  128.8W MB=4.3  ECAN OF PORT HARDY, BC  

P:  4MAY2024 162765    49.3N  129.0W 2.8-5.1 CAAAA  Vancouver Island area      

P: 11MAY2024 163040    48.7N  129.0W 2.8-5.1 AAAAA  Vancouver Island area      

 

O: 09MAY2024 09:15:54  61.3N  139.8W MB=3.0  ECAN OF BURWASH LANDING, YT  

O: 10MAY2024 02:30:03  61.6N  140.7W MB=3.4  ECAN OF BEAVER CREEK, YT            

P:  8MAY2024 162792    60.1N  139.4W 3.2-5.0 AAAAA  Central Alaska             

 

ROCKY MOUNTAINS REGION

 

O: 10MAY2024 20:31:54  31.7N  104.2W ML=3.7  EMSC   WESTERN TEXAS

O: 10MAY2024 21:50:02  31.7N  104.2W ML=2.0  EMSC   WESTERN TEXAS

O: 11MAY2024 05:48:44  31.6N  104.5W ML=2.0  EMSC   WESTERN TEXAS                

P:  7MAY2024 162707    32.6N  104.6W 2.0-4.3 BAAAA  SW U.S.A                   

 

NEIC reported this earthquake of M 3.8 in Western Texas was felt with intensity up to IV in the area(s) of  Western Texas in Toyah.

 

O: 10MAY2024 14:49:26  41.6N  112.4W ML=2.4  EMSC   UTAH                          

P:  8MAY2024 162768    43.2N  111.0W 2.0-4.1 ABAAA  Yellowstone/Wyoming        

 

O: 10MAY2024 16:11:51  44.6N  112.4W ML=2.7  EMSC   WESTERN MONTANA              

P: 10MAY2024 162743    44.5N  112.6W 2.0-3.9 AAAAA  Montana/Idaho               

 

EASTERN U.S./CANADA

 

O: 10MAY2024 12:07:05  28.5N   98.7W ML=2.1  EMSC   SOUTHERN TEXAS

O: 10MAY2024 22:52:46  28.5N   98.6W ML=2.0  EMSC   SOUTHERN TEXAS

O: 10MAY2024 07:26:03  28.4N  100.1W ML=2.0  EMSC   SOUTHERN TEXAS               

P:  3MAY2024 162662    28.0N   99.0W 3.0-4.4 CAAAA  Northern Mexico            

 

O: 11MAY2024 06:53:09  35.0N   97.7W ML=2.3  EMSC   OKLAHOMA                     

P:  7MAY2024 162720    35.0N   97.0W 2.0-4.1 BAAAA  Southern Plains            

 

O: 11MAY2024 04:37:00  36.3N   97.5W ML=2.9  EMSC   OKLAHOMA                     

P:  5MAY2024 162720    36.0N   97.0W 2.0-4.1 CAAAA  Southern Plains            

P: 12MAY2024 162992    36.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

 

NEIC reported this earthquake of M 2.9 in Oklahoma was felt with intensity up to III in the area(s) of  Oklahoma in Lucien.

 

 

O: 10MAY2024 08:38:38  47.7N   89.7W MB=1.5  ECAN OF FORT WILLIAM, ON            

 

O:  9MAY2024 17:01:33  47.5N   70.0W MB=1.4  ECAN OF LA POCATI├¿RE, QC           

P:  7MAY2024 162742    47.0N   69.0W 2.0-4.1 AAAAA  Maine                      

 

O:  9MAY2024 11:44:42  50.6N   63.3W MB=2.7  ECAN OF LAC TIO MINE, QC            

P:  7MAY2024 162736    49.0N   66.0W 2.0-4.6 ABBAA  E. of Maine                 

 

O: 10MAY2024 16:44:11  37.1N   88.8W MD=1.9  ANSS   ENE OF KEVIL KENTUCKY        

P:  4MAY2024 162694    37.0N   88.0W 2.0-4.2 CAAAA  New Madrid area            

P:  7MAY2024 162694    36.7N   89.7W 2.0-4.0 BAAAA  New Madrid area            

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

STRONG QUAKE IN TAIWAN FOLLOWS MAJOR SOLAR FLARE

 

EARTHQUAKE SUMMARY FOR MAY 9, 2024

 

The strongest earthquake in the world today was an M 5.8-6.0 aftershock in Taiwan. NEIC reported it was felt with intensity up to VI in Hualien City. CWB reported intensity IV in Taiwan at Hualien, Yilan; III in Nantou, Taichung, Taipei, Taoyuan, Hsinchu, and II in Miaoli, Taitung, Changhua, Yunlin, Chiayi, Hsinchu, Tainan, Kaohsiung and Pingtung Counties, Taiwan. EMSC reported moderate shaking in the Taiwanese Districts of Wenshan, Da'an, Taipei, Zhongshan, Yangmei, Xinzhuang, Shilin Linkou. This earthquake followed at the end of a major X3.9 class solar flare (#1310) and was probably triggered by Solar Flare Effects (SFE). No major damage was reported by the press but minor damage to structures damaged in previous earthquakes in this area is likely. Foreshocks of M 4.6 and M 5.1 preceded the M 5.8 with the M 5.1 about six hours earlier were reported by NEIC to have been felt in Hualien City with intensity II. If this all sounds familiar, the last earthquake of comparable magnitude (M 5.9) hit Taiwan following a major X4.5 flare on April 29, 2024 and was reported in this summary at the time as:

 

 

"A major X-class flare of X4.5 occurred early on May 6 around 5:35-7:00 UT maximizing about 6:30 UT. Longitudes most likely to be seismically activated by SFE from this flare are located near 90 West and 90 E and include Central America in the west and Indonesia, Taiwan, Philippines in the East. These are regions most likely to see strong or major events in the next several days related to this flare. Active areas at this time in these longitude bands include the aftershock zone of Taiwan and Central America where a moderately strong to strong earthquake is possible shortly.  This is the strongest flare reported by SWPC since an X6.3 on February 22, 2024. An X5.0 also occurred on December 31, 2023 and was followed hours later by the destructive M 7.5 in Western Japan of January 1, 2024. These are the only such flares of X4.5 or greater in the past three years.  At the time of the X6.3 on February 22, 2024 this summary noted:

 

...

 

This solar flare was followed 2-3 hours later by a pair of earthquakes of M 5.6

in the area of Taiwan. EMSC reported moderate shaking in Taiwan in Nantun, East, Wenshan, Da'an, Zhongshan, Tamsui,  Districts and in Shanzihding.   CWB reported these earthquakes at M 5.9 each. ... Earthquakes of  M 6.0 and M 6.1 hit Taiwan on April 22, 2024. Together with today's events of M 5.9 and an M 6.2 in Taiwan on April 3, 2024, these are the strongest aftershocks to date of the M 7.4 event of April 2, 2024." (May 6, 2024)

 

Following is the data from SWPC on the X3.9 solar flare today:

 

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

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

1310       0627   0654      0739   X3.9      (May 10, 2024)   4.4E-01  

 

Forecast 162667 had expected continued moderate earthquakes in this area of Taiwan were likely in early May, 2024.

 

O: 10MAY2024 01:35:38  23.7N  121.7E mb=5.0  EMSC   TAIWAN

O: 09MAY2024 12:36:25  23.9N  121.7E mb=4.6  EMSC   TAIWAN

O: 10MAY2024 01:37:23  23.9N  121.6E mb=4.9  EMSC   TAIWAN

O: 10MAY2024 01:40:20  23.9N  121.6E ML=4.1  EMSC   TAIWAN

O: 10MAY2024 07:45:19  24.2N  121.9E MW=5.8  EMSC   TAIWAN                       

P:  7MAY2024 162667    23.0N  122.0E 4.0-5.4 BBAAA  Taiwan                     

 

The most unusual earthquake in the Americas today was an M 4.6 east of Barbuda. This earthquake occurred near local solar noon and was in an area where this summary had expected enhanced seismicity with the new moon of May 8 as:

 

"The new  moon arrived on May 8, 2024  at 03:22 UT. Longitudes at local solar noon are near 128 East and those at local solar midnight are near 52 West longitude. In the west these include the northern and Eastern Caribbean as well as areas of western South America while in the East longitudes near 128 E are located in the Philippines, Taiwan, Japan, and Indonesia among others. These are the most likely areas to see tidal triggering at this time, but other areas could see significant enhancement in seismicity in the next several days. These would most likely see seismic enhancement near local solar noon or midnight. A strong to major earthquake is considered likely with this new moon before May 12, 2024." (May 8-9, 2024)

 

The last earthquake within about 100 km of today's epicenter east of Barbuda in the Leeward Islands with M>=4.6 occurred on December 3, 2011 with M 5.6. An M 4.9 earthquake in Antigua and Barbuda about 150 km southwest of today's epicenter also occurred yesterday (May 8, 2024) and was reported in the previous issue of this summary as:

 

"A moderate M 4.9 also occurred today in Antigua and Barbuda.  NEIC reported this earthquake of M 4.9 in Antigua and Barbuda was felt with intensity up to V in the area(s) of  Antigua and Barbuda at Falmouth.  EMSC reporteed strong shaking in Antigua and Barbuda at Five Islands, Antigua and in Guadeloupe at Deshaies, Petit-Canal, Sainte-Rose, Les Abymes, Lamentin, Baie-Mahault, Pointe-a-Pitre, Le Gosier, Sainte-Anne, and as far as Sint Maarten and Martinique. This event occurred near local solar noon and may have been promoted by strong tide or geomagnetic stresses which maximize near this time. An earthquake of M 5.2 hit the Antigua area on April 16 about 100 km north of today's epicenter." (May 8, 2024)

 

Forecast 162631 had expected today's event in this area was likely in early

May, 2024.

 

O:  9MAY2024 13:48:55  17.6N   59.6W MB=4.6  EMSC   EAST OF BARBUDA, LEEWARD ISLAN

P:  3MAY2024 162631    17.0N   61.0W 3.0-5.0 CAAAA  Leeward Islands            

P:  7MAY2024 162631    16.0N   60.0W 3.0-5.1 ABAAA  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: 10MAY2024 01:35:38  23.7N  121.7E mb=5.0  EMSC   TAIWAN

O: 09MAY2024 12:36:25  23.9N  121.7E mb=4.6  EMSC   TAIWAN

O: 10MAY2024 01:37:23  23.9N  121.6E mb=4.9  EMSC   TAIWAN

O: 10MAY2024 01:40:20  23.9N  121.6E ML=4.1  EMSC   TAIWAN

O: 10MAY2024 07:45:19  24.2N  121.9E MW=5.8  EMSC   TAIWAN                       

P:  7MAY2024 162667    23.0N  122.0E 4.0-5.4 BBAAA  Taiwan                     

 

O: 10MAY2024 01:52:20  37.3N   74.6E MB=4.5  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 29APR2024 162417    38.0N   73.0E 3.8-5.2 CABAA  Hindu Kush/Pakistan        

 

INDONESIA AND PHILIPPINES

 

O: 10MAY2024 00:35:24   2.2S  151.9E MB=4.8  EMSC   NEW IRELAND REGION, P.N.G.   

P: 10MAY2024 162605     3.0S  149.0E 4.0-5.4 AACAA  New Ireland                

 

O:  9MAY2024 13:14:44   3.3S  131.0E ML=4.0  EMSC   CERAM SEA, INDONESIA         

P:  4MAY2024 162598     4.0S  129.0E 4.0-5.4 BAAAA  Ceram area                 

 

O:  9MAY2024 19:07:04  12.9N  123.6E ML=4.0  EMSC   MASBATE REGION, PHILIPPINES  

P:  8MAY2024 162635    13.0N  124.0E 3.5-5.1 AAAAA  Luzon, Philippines         

 

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

 

CENTRAL AND SOUTH AMERICA

 

O:  9MAY2024 10:21:39   4.5N   87.8W ML=4.4  EMSC   OFF COAST OF CENTRAL AMERICA 

P:  2MAY2024 162587     5.0N   83.0W 3.5-4.9 CACAA  Costa Rica                 

 

O: 10MAY2024 01:39:52   8.2S   75.2W ML=4.1  EMSC   CENTRAL PERU                 

P:  8MAY2024 162595     9.0S   75.0W 3.5-5.1 AAAAA  Brazil                     

 

O: 10MAY2024 01:33:40  15.7S   73.9W ML=4.2  EMSC   SOUTHERN PERU                

P:  5MAY2024 162807    14.0S   71.0W 4.0-5.6 BBAAA  Central Peru               

P:  8MAY2024 162808    14.0S   73.0W 4.0-6.0 ABAAA  Central Peru               

 

O: 10MAY2024 00:31:14  16.4N   95.3W ML=4.0  EMSC   OAXACA, MEXICO                

P:  7MAY2024 162643    16.0N   96.0W 3.5-5.2 BAAAA  Oaxaca, Mexico             

P:  9MAY2024 162626    16.0N   94.0W 3.5-5.6 AAAAA  Chiapas, Mexico            

 

O:  9MAY2024 13:48:55  17.6N   59.6W MB=4.6  EMSC   EAST OF BARBUDA, LEEWARD ISLAN

P:  3MAY2024 162631    17.0N   61.0W 3.0-5.0 CAAAA  Leeward Islands            

P:  7MAY2024 162631    16.0N   60.0W 3.0-5.1 ABAAA  Leeward Islands            

 

O:  9MAY2024 13:40:44  17.7S   69.6W MB=4.6  EMSC   TARAPACA, CHILE              

P:  9MAY2024 162814    17.0S   71.0W 4.0-5.6 AABAA  So. Peru/Bolivia           

 

O: 10MAY2024 00:36:34  18.2N   68.3W MD=3.6  EMSC   MONA PASSAGE, DOMINICAN REPUBL

P:  9MAY2024 162646    18.0N   67.0W 3.4-4.9 AAAAA  Puerto Rico                

 

O:  9MAY2024 22:33:30  19.6S   66.7W MB=4.5  EMSC   POTOSI, BOLIVIA              

P:  2MAY2024 162823    21.0S   67.0W 4.0-5.5 CBAAA  Argentina                  

 

O:  9MAY2024 12:29:28  24.6S   69.7W MW=4.4  EMSC   ANTOFAGASTA, CHILE           

P:  4MAY2024 162826    23.0S   69.0W 4.0-5.6 BBAAA  Coast No. Chile            

 

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

 

AFRICA AND EUROPE

 

O: 10MAY2024 00:49:16  44.0N   43.0E MB=4.0  EMSC   CAUCASUS REGION, RUSSIA      

P:  6MAY2024 162734    43.0N   44.0E 3.5-5.1 BAAAA  Caucasus/Caspian Sea       

 

EMSC reported this earthquake of M 4.0 in the Russian Caucasus was felt with intensity up to III in the area(s) of  the Russian Caucasus in Yessentuki, Zheleznovodsk, Lysogorskaya. 

 

O:  9MAY2024 22:01:37  81.2N    4.8W MB=4.2  EMSC   NORTH OF SVALBARD            

 

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

 

SOUTHWEST PACIFIC

 

O: 10MAY2024 01:21:49  15.1S  168.2E mb=4.9  EMSC   VANUATU

O: 10MAY2024 00:50:03  15.0S  168.0E MB=5.0  EMSC   VANUATU                      

P:  4MAY2024 162821    15.0S  167.0E 4.0-5.5 CAAAA  Vanuatu Islands            

 

O: 10MAY2024 01:45:42  22.2S  179.5W MB=4.5  EMSC   SOUTH OF FIJI ISLANDS        

P:  6MAY2024 162833    22.0S  180.0W 4.0-5.8 BAAAA  Tonga Islands              

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  9MAY2024 18:43:19  31.4S  179.6W MB=4.6  EMSC   KERMADEC ISLANDS REGION      

P:  9MAY2024 162839    30.0S  178.0W 4.0-5.6 ABBAA  No. Kermadec Islands       

P:  9MAY2024 162842    31.0S  177.0W 4.0-5.4 AACAA  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: 09MAY2024 07:49:56  33.2N  116.4W ML=2.2  EMSC   SOUTHERN CALIFORNIA

O: 09MAY2024 21:19:26  32.3N  115.3W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 10MAY2024 03:18:05  32.3N  115.3W ML=2.4  EMSC   BAJA CALIFORNIA, MEXICO      

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 AAAAA  So. California             

 

O:  9MAY2024 20:29:53  32.6N  118.7W ML=2.7  EMSC   OFF COAST OF CALIFORNIA      

P:  5MAY2024 162710    32.6N  118.1W 2.5-4.4 BAAAA  So. California             

 

O:  9MAY2024 09:56:55  34.0N  116.2W ML=2.6  EMSC   SOUTHERN CALIFORNIA          

P:  8MAY2024 162715    34.7N  116.4W 2.5-4.6 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.7 in Southern California was felt with intensity up to III in the area(s) of  Southern California in Joshua Tree.

 

O:  9MAY2024 09:29:51  34.1N  117.4W ML=2.0  EMSC   GREATER LOS ANGELES AREA, CALI

P:  6MAY2024 162714    34.3N  117.5W 2.5-4.5 BAAAA  So. California              

 

O:  9MAY2024 13:18:11  35.7N   97.4W ML=2.7  EMSC   OKLAHOMA CITY AREA, OKLAHOMA 

P:  7MAY2024 162720    35.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

 

NEIC reported this earthquake of M 2.8 in Oklahoma was felt with intensity up to V in the area(s) of  Oklahoma in Edmond.

 

O: 10MAY2024 05:57:21  36.1N  117.9W ML=2.2  EMSC   CENTRAL CALIFORNIA           

P:  7MAY2024 162671    36.2N  117.9W 2.5-4.5 BAAAA  California/Nevada area     

 

O: 09MAY2024 14:24:19  37.1N  121.9W MD=2.1  EMSC   NORTHERN CALIFORNIA

O: 09MAY2024 14:25:33  37.1N  121.9W MD=2.0  EMSC   NORTHERN CALIFORNIA

O:  9MAY2024 13:27:43  37.1N  121.9W MD=2.4  EMSC   NORTHERN CALIFORNIA          

P:  9MAY2024 162678    36.8N  121.3W 2.5-4.6 AAAAA  Central California          

 

O:  9MAY2024 07:42:49  37.5N  114.3W ML=2.0  EMSC   NEVADA                       

P:  4MAY2024 162674    37.8N  115.8W 2.5-4.4 BABAA  California/Nevada area     

 

O:  9MAY2024 21:24:11  37.5N  116.7W ML=2.0  EMSC   NEVADA                       

P:  6MAY2024 162672    37.2N  117.3W 2.5-4.7 BAAAA  California/Nevada area     

 

O:  9MAY2024 15:27:17  37.5N  121.8W MD=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P:  6MAY2024 162679    37.9N  122.0W 2.5-4.7 BAAAA  Central California         

 

O:  9MAY2024 21:09:53  38.8N  122.8W MD=2.5  EMSC   NORTHERN CALIFORNIA          

P:  6MAY2024 162680    38.8N  122.7W 2.5-4.5 BAAAA  Central California         

 

NEIC reported this earthquake of M 2.5 in northern California was felt with intensity up to III in the area(s) of  northern California in the Geysers.

 

O:  9MAY2024 22:12:51  39.8N  123.5W MD=2.1  EMSC   NORTHERN CALIFORNIA          

P:  7MAY2024 162681    39.6N  123.4W 2.5-4.8 AAAAA  Central California         

 

O:  9MAY2024 14:39:37  40.7N  124.3W MD=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  6MAY2024 162753    40.7N  124.6W 2.5-4.8 BAAAA  Off Coast of No. Calif     

 

O:  9MAY2024 21:34:20  41.8N  125.9W MD=2.9  EMSC   OFF COAST OF NORTHERN CALIFORN

P:  4MAY2024 162754    41.8N  126.9W 2.5-4.6 BAAAA  Off Coast of No. Calif     

P:  8MAY2024 162754    40.5N  125.8W 2.5-4.8 ABAAA  Off Coast of No. Calif     

 

 

ALASKA

 

O:  9MAY2024 09:42:34  67.8N  160.9W ML=3.0  EMSC   NORTHERN ALASKA              

P:  1MAY2024 162799    66.9N  165.8W 3.0-4.7 CABAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 09MAY2024 09:15:54  61.3N  139.8W ML=3.0  EMSC   SOUTHERN YUKON TERRITORY, CANADA

O: 10MAY2024 02:30:03  61.6N  140.6W ML=3.3  EMSC   SOUTHERN YUKON TERRITORY, CANA

P:  8MAY2024 162792    60.1N  139.4W 3.2-5.0 ABAAA  Central Alaska             

 

ROCKY MOUNTAINS REGION

 

O: 09MAY2024 10:45:24  31.5N  104.0W ML=2.0  EMSC   WESTERN TEXAS

O: 10MAY2024 01:48:13  31.6N  104.0W ML=2.5  EMSC   WESTERN TEXAS

O: 09MAY2024 23:57:41  31.7N  104.2W ML=2.3  EMSC   WESTERN TEXAS

O:  9MAY2024 08:23:18  32.4N  102.0W ML=2.1  EMSC   WESTERN TEXAS                

P:  7MAY2024 162707    32.6N  104.6W 2.0-4.3 AABAA  SW U.S.A                   

 

O:  9MAY2024 11:54:49  44.3N  114.9W ML=2.4  EMSC   SOUTHERN IDAHO               

P: 10MAY2024 162743    44.5N  112.6W 2.0-3.9 AABAA  Montana/Idaho              

 

O: 10MAY2024 01:31:03  47.2N  111.9W ML=2.8  EMSC   WESTERN MONTANA              

P:  3MAY2024 162744    47.5N  115.8W 2.0-4.0 CACAA  Montana/Idaho              

 

NEIC reported this earthquake of M 2.6 in Montana was felt with intensity up to III in the area(s) of  Montana in Cascade.

 

EASTERN U.S./CANADA

 

O: 09MAY2024 07:18:09  28.5N  100.0W ML=2.4  EMSC   SOUTHERN TEXAS

O: 10MAY2024 07:26:03  28.4N  100.1W ML=2.0  EMSC   SOUTHERN TEXAS               

P:  3MAY2024 162662    28.0N   99.0W 3.0-4.4 CAAAA  Northern Mexico            

 

O:  9MAY2024 11:44:42  50.6N   63.3W ML=2.7  EMSC   EASTERN QUEBEC, CANADA       

O:  9MAY2024 11:44:42  50.6N   63.3W MB=2.7  ECAN OF LAC TIO MINE, QC            

P:  7MAY2024 162736    49.0N   66.0W 2.0-4.6 AABAA  E. of Maine                

 

O: 08MAY2024 20:46:48  47.6N   70.0W MB=0.3  ECAN OF LA MALBAIE, QC  

O:  9MAY2024 17:01:33  47.5N   70.0W MB=1.4  ECAN OF LA POCATI├¿RE, QC           

 

O:  9MAY2024 04:18:09  45.3N   67.7W MB=1.8  ECAN OF WESTERN CHARLOTTE PART A, NB

P: 29APR2024 162467    45.0N   68.0W 2.0-4.1 CAAAA  Maine                      

 

HAWAII

 

O:  9MAY2024 13:06:15  19.2N  155.4W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII     

 

 

STRONG EARTHQUAKE IN CENTRAL VANUATU

 

EARTHQUAKE SUMMARY FOR MAY 8, 2024

 

 

The strongest earthquake in the world today was an M 6.1 in central Vanuatu. NEIC reported it was felt with intensity up to VI in Vanuatu at Luganville. Australian Press indicated only light shaking, no tsunami and no damage were reported with this earthquake. Several moderate aftershock including an M 5.4 were closely associated with Solar Flares. The M 6.1 occurred with today's new moon near local solar noon and may have been promoted by tidal and/or geomagnetic stressors as the tidal forecast with this new moon indicates:

 

"The new  moon arrived on May 8, 2024  at 03:22 UT. Longitudes at local solar noon are near 128 East and those at local solar midnight are near 52 West longitude. In the west these include the northern and Eastern Caribbean as well as areas of western South America while in the East longitudes near 128 E are located in the Philippines, Taiwan, Japan, and Indonesia among others. These are the most likely areas to see tidal triggering at this time, but other areas could see significant enhancement in seismicity in the next several days. These would most likely see seismic enhancement near local solar noon or midnight. A strong to major earthquake is considered likely with this new moon before May 12, 2024." (May 8, 2024)

 

This earthquake in Vanuatu followed minutes after solar flare 370 - an event of M4.5 and was probably promoted by SFE with this flare.

 

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

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

 

 370       0729   0741      0753   M4.5      (May 8, 2024)   5.1E-02  

 

The last earthquake in Vanuatu within about 200 km of this epicenter with equal or larger magnitude was an M 6.7 on November 22, 2023 and is probably an aftershock of that event. At the time this summary noted:

 

 

"The strongest earthquake in the world today was an M 6.7 in central Vanuatu.

This is the strongest earthquake within about 200 km of this epicenter in Vanuatu since an M 7.0 on January 8, 2023." (November 22, 2023)

 

Forecasts 162821 and 162822 had expected this activity in Vanuatu was likely within about 100 km in early May.

 

O: 08MAY2024 09:03:35  15.1S  168.1E mb=4.6  EMSC   VANUATU

O: 08MAY2024 11:04:53  15.1S  168.1E mb=4.8  EMSC   VANUATU

O: 08MAY2024 11:51:39  15.1S  168.1E Mw=5.2  EMSC   VANUATU

O: 08MAY2024 08:17:16  15.2S  168.0E Mw=6.1  EMSC   VANUATU

O: 08MAY2024 09:53:15  15.2S  168.2E mb=4.8  EMSC   VANUATU

O: 08MAY2024 12:45:05  15.2S  168.0E mb=4.7  EMSC   VANUATU

O: 09MAY2024 03:08:48  15.2S  168.0E mb=5.1  EMSC   VANUATU

O: 08MAY2024 13:37:42  15.5S  168.2E mb=5.2  EMSC   VANUATU

O:  8MAY2024 11:06:19  15.3S  168.1E MB=5.4  EMSC   VANUATU                      

P:  4MAY2024 162821    15.0S  167.0E 4.0-5.5 AAAAA  Vanuatu Islands            

P:  7MAY2024 162822    17.0S  167.0E 4.0-5.8 ABAAA  Vanuatu Islands            

 

 

A series of moderate earthquakes in Guatemala, Nicaragua, Colombia and Ecuador have occurred in the past two days - most near local solar noon or local solar midnight.

 

The most interesting of these was an M 4.7 in Nicaragua which occurred within minutes of local solar noon. This epicenter at 12 North latitude is exactly aub-solar when this event occurred, as is 12N latitude around the world today. This means this epicenter saw the sun at it's zenith as this earthquake occurred. This summary has previously argued that this alignment can promoted sub-solar seismicity. Today's event in Nicaragua also coincided with Solar Flare 520 (M7.9) which maximized at the time of today's earthquake in Nicaragua. Following is the flare data for this event from SWPC:

 

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

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

 

 520       1732   1753      1800   M7.9      (May 8, 2024)   5.8E-02  

 

An earthquake of M 5.5 occurred in Nicaragua on April 17, 2024. Today's event may be a regional aftershock of that event. At the time this summary noted:

 

"The earthquake in Nicaragua was the strongest within about 200 km of that epicenter since an M 6.7 on April 21, 2022." (April 17, 2024)

 

Forecast 162639 had expected today's event in Nicaragua was likely within  about 100 km around May 9.

 

O:  8MAY2024 17:53:44  12.0N   87.1W MB=4.7  EMSC   NEAR COAST OF NICARAGUA      

P:  9MAY2024 162639    11.0N   87.0W 3.5-5.8 AAAAA  Nicaragua                  

 

NEIC reported an earthquake of M 4.3 in Guatemala was felt with intensity up to III in the area(s) of  Guatemala at Puerto San Jose. EMSC reported moderate shaking in Guatemala at Antigua, Jocotenango, Aldea Santo Tomas Milpas Altas, and in San Salvador, El Salvador. Forecast 162630 had expected this event was likely within about 100 km around May 7, 2024.

 

O:  9MAY2024 01:07:43  13.8N   90.9W MB=4.3  EMSC   OFFSHORE GUATEMALA           

P:  7MAY2024 162630    13.0N   91.0W 3.5-5.5 AAAAA  Guatemala                  

 

A moderate M 4.9 also occurred today in Antigua and Barbuda. NEIC reported this earthquake of M 4.9 in Antigua and Barbuda was felt with intensity up to V in the area(s) of  Antigua and Barbuda at Falmouth.  EMSC reported strong shaking in Antigua and Barbuda at Five Islands, Antigua and in Guadeloupe at Deshaies, Petit-Canal, Sainte-Rose, Les Abymes, Lamentin, Baie-Mahault, Pointe-a-Pitre, Le Gosier, Sainte-Anne, and as far as Sint Maarten and Martinique. This event occurred near local solar noon and may have been promoted by strong tide or geomagnetic stresses which maximize near this time. An earthquake of M 5.2 hit the Antigua area on April 16 about 100 km north of today's epicenter.

 

Forecast 162631 had expected today's event was likely around May 7, 2024.

 

O:  8MAY2024 14:43:56  16.8N   61.7W MB=4.9  EMSC   ANTIGUA AND BARBUDA REGION   

P:  7MAY2024 162631    16.0N   60.0W 3.0-5.1 AABAA  Leeward Islands            

 

The strongest earthquake in the U.S. or Canada today was an M 4.0 in the Andreanof Islands, Aleutians, Alaska. It was not reported felt in this remote area. It occurred at the maximum output of flare 680 and may have been promoted by SFE from that flare.

 

Forecast 162773 had expected this event was likely within about 25 km was likely around May 10, 2024.

 

O:  9MAY2024 01:21:22  52.2N  172.4W ML=4.0  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 10MAY2024 162773    52.1N  172.8W 3.5-5.1 AAAAA  Andreanoff Isls, Aleutians 

 

An earthquake of M 3.9 occurred today off the coast of Baja California. It was not reported felt. This epicenter became active with an M 6.2 on November 22, 2022. A series of light to moderate earthquake hit this region  off California in the following year including an M 4.5 on May 14, 2023. But little of similar magnitude in the area has occurred in the past year. Today's earthquake had been forecast in forecast 162709 to the north of this epicenter around May 9, 2024.

 

O:  8MAY2024 17:50:06  30.8N  116.3W ML=3.9  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 ABAAA  So. California             

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: 08MAY2024 09:49:01  21.1N   70.9E ML=3.6  EMSC   GUJARAT, INDIA

O:  8MAY2024 09:44:48  21.1N   70.5E ML=3.7  EMSC   GUJARAT, INDIA               

 

O: 08MAY2024 11:31:26  24.1N  122.5E Mw=4.4  EMSC   TAIWAN REGION

O:  8MAY2024 08:40:43  23.7N  121.7E MB=4.9  EMSC   TAIWAN                        

P:  7MAY2024 162667    23.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

INDONESIA AND PHILIPPINES

 

O:  8MAY2024 15:50:59   4.8S  141.8E MB=4.3  EMSC   NEW GUINEA, PAPUA NEW GUINEA 

P:  9MAY2024 162610     4.0S  143.0E 4.0-5.4 AAAAA  Papua New Guinea           

 

O:  8MAY2024 20:54:32  10.4S  118.3E ML=4.4  EMSC   SOUTH OF SUMBAWA, INDONESIA  

P:  2MAY2024 162816    11.0S  118.0E 4.0-5.4 CAAAA  So. of Indonesia           

P:  6MAY2024 162617     8.0S  118.0E 4.0-5.6 ACAAA  Sumbawa Island area        

 

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

 

CENTRAL AND SOUTH AMERICA

 

O:  8MAY2024 17:53:44  12.0N   87.1W MB=4.7  EMSC   NEAR COAST OF NICARAGUA      

P:  9MAY2024 162639    11.0N   87.0W 3.5-5.8 AAAAA  Nicaragua                  

 

O:  9MAY2024 01:07:43  13.8N   90.9W MB=4.3  EMSC   OFFSHORE GUATEMALA           

P:  7MAY2024 162630    13.0N   91.0W 3.5-5.5 AAAAA  Guatemala                  

 

O:  8MAY2024 20:35:22  15.2N   93.8W ML=4.1  EMSC   OFFSHORE CHIAPAS, MEXICO     

P:  9MAY2024 162626    16.0N   94.0W 3.5-5.6 AAAAA  Chiapas, Mexico            

 

O:  8MAY2024 23:14:30  15.9N   98.8W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P:  2MAY2024 162643    15.0N   98.0W 3.5-5.3 CAAAA  Oaxaca, Mexico             

 

O:  8MAY2024 14:43:56  16.8N   61.7W MB=4.9  EMSC   ANTIGUA AND BARBUDA REGION   

P:  7MAY2024 162631    16.0N   60.0W 3.0-5.1 AABAA  Leeward Islands            

 

O:  8MAY2024 07:41:28  17.3N   94.8W ML=4.0  EMSC   VERACRUZ, MEXICO             

P:  7MAY2024 162626    17.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O:  8MAY2024 16:26:20  18.7N   73.7W ML=3.2  EMSC   HAITI REGION                 

P:  6MAY2024 162651    20.0N   73.0W 3.0-4.6 ABAAA  Bahamas/No. Caribbean      

 

O: 08MAY2024 14:19:16  19.0N   67.3W MD=3.9  EMSC   PUERTO RICO REGION

O: 08MAY2024 23:46:50  17.9N   66.9W MD=3.3  EMSC   PUERTO RICO REGION

P:  9MAY2024 162646    18.0N   67.0W 3.4-4.9 AAAAA  Puerto Rico                

 

O: 08MAY2024 21:49:27  18.8N  106.9W ML=3.9  EMSC   OFF COAST OF JALISCO, MEXICO

O: 08MAY2024 21:57:10  18.8N  106.9W ML=3.8  EMSC   OFF COAST OF JALISCO, MEXICO

O:  8MAY2024 21:27:22  18.9N  107.0W ML=3.9  EMSC   OFF COAST OF JALISCO, MEXICO 

P:  9MAY2024 162654    20.0N  109.0W 3.5-5.0 ABBAA  Gulf of California         

 

O:  9MAY2024 03:48:34  19.1N   65.7W MD=3.4  EMSC   PUERTO RICO REGION           

P:  6MAY2024 162632    19.0N   65.0W 3.0-5.3 AAAAA  Leeward Islands            

 

O: 08MAY2024 20:39:10  19.5N   70.5W ML=3.1  EMSC   DOMINICAN REPUBLIC

O:  8MAY2024 11:24:48  19.2N   69.8W ML=3.1  EMSC   DOMINICAN REPUBLIC           

P:  3MAY2024 162651    20.0N   69.0W 3.0-4.5 BAAAA  Bahamas/No. Caribbean      

 

O:  8MAY2024 07:43:49  20.7N   95.9W ML=4.0  EMSC   BAY OF CAMPECHE              

P:  7MAY2024 162626    17.0N   95.0W 3.5-5.3 ACAAA  Chiapas, Mexico            

 

O: 08MAY2024 10:00:58  21.4S   68.3W MW=5.2  EMSC   ANTOFAGASTA, CHILE

P:  7MAY2024 162823    22.0S   68.0W 4.0-5.4 AAAAA  Argentina                   

 

O:  8MAY2024 08:17:26  26.4N  110.9W ML=3.9  EMSC   GULF OF CALIFORNIA           

P:  3MAY2024 162654    26.0N  110.0W 3.5-5.2 BAAAA  Gulf of California         

 

O:  8MAY2024 22:17:49  24.4N  109.3W ML=4.1  EMSC   GULF OF CALIFORNIA           

P:  3MAY2024 162654    26.0N  110.0W 3.5-5.2 BBAAA  Gulf of California         

 

O: 08MAY2024 21:49:27  18.8N  106.9W ML=3.9  EMSC   OFF COAST OF JALISCO, MEXICO

O: 08MAY2024 21:57:10  18.8N  106.9W ML=3.8  EMSC   OFF COAST OF JALISCO, MEXICO

 

 

 

AFRICA AND EUROPE

 

O:  8MAY2024 18:06:57  26.2S   27.7E ML=3.0  EMSC   SOUTH AFRICA                 

P: 10MAY2024 162829    27.0S   27.0E 3.0-4.7 AAAAA  Rep. South Africa          

 

EMSC reported this earthquake of M 3.0 in South Africa was felt with intensity up to III in the area(s) of  South Africa at Johannesburg.

 

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

 

SOUTHWEST PACIFIC

 

O: 08MAY2024 09:03:35  15.1S  168.1E mb=4.6  EMSC   VANUATU

O: 08MAY2024 11:04:53  15.1S  168.1E mb=4.8  EMSC   VANUATU

O: 08MAY2024 11:51:39  15.1S  168.1E Mw=5.2  EMSC   VANUATU

O: 08MAY2024 08:17:16  15.2S  168.0E Mw=6.1  EMSC   VANUATU

O: 08MAY2024 09:53:15  15.2S  168.2E mb=4.8  EMSC   VANUATU

O: 08MAY2024 12:45:05  15.2S  168.0E mb=4.7  EMSC   VANUATU

O: 09MAY2024 03:08:48  15.2S  168.0E mb=5.1  EMSC   VANUATU

O: 08MAY2024 13:37:42  15.5S  168.2E mb=5.2  EMSC   VANUATU

O:  8MAY2024 11:06:19  15.3S  168.1E MB=5.4  EMSC   VANUATU                      

P:  4MAY2024 162821    15.0S  167.0E 4.0-5.5 AAAAA  Vanuatu Islands            

P:  7MAY2024 162822    17.0S  167.0E 4.0-5.8 ABAAA  Vanuatu Islands            

 

OCEAN RIDGES

 

No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  8MAY2024 20:42:56  31.6S  179.9E MW=3.9  EMSC   KERMADEC ISLANDS REGION      

P:  5MAY2024 162842    31.0S  178.0W 4.0-5.4 BABAA  So. Kermadec Islands       

P:  7MAY2024 162844    33.0S  179.0W 4.0-5.5 ABAAA  So. Kermadec Islands       

 

O:  8MAY2024 18:33:30  32.3S  179.9E MW=4.3  EMSC   SOUTH OF KERMADEC ISLANDS    

P:  9MAY2024 162843    31.0S  180.0E 4.0-5.4 ABAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O:  8MAY2024 19:34:44  33.1N  131.5E MB=4.5  EMSC   KYUSHU, JAPAN                

P:  7MAY2024 162690    30.0N  131.0E 3.5-5.0 ACAAA  Kyushu, Japan area         

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  8MAY2024 17:50:06  30.8N  116.3W ML=3.9  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 ABAAA  So. California             

 

O:  9MAY2024 02:44:32  33.8N  117.6W ML=2.3  EMSC   GREATER LOS ANGELES AREA, CALI

P:  6MAY2024 162714    34.3N  117.5W 2.5-4.5 BAAAA  So. California             

 

O: 09MAY2024 03:11:57  38.8N  122.8W MD=2.0  EMSC   NORTHERN CALIFORNIA

O:  9MAY2024 01:51:54  38.8N  122.8W MD=2.3  EMSC   NORTHERN CALIFORNIA          

P:  6MAY2024 162680    38.8N  122.7W 2.5-4.5 BAAAA  Central California         

 

O:  8MAY2024 15:59:05  39.7N  120.6W MD=2.8  EMSC   NORTHERN CALIFORNIA           

P:  8MAY2024 162752    40.0N  120.9W 2.5-4.9 AAAAA  Northern California        

 

NEIC reported this earthquake of M 3.0 in Northern California was felt with intensity up to III in the area(s) of  Northern California in Whitehawk.

 

ALASKA

 

O:  9MAY2024 01:21:22  52.2N  172.4W ML=4.0  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 10MAY2024 162773    52.1N  172.8W 3.5-5.1 AAAAA  Andreanoff Isls, 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: 09MAY2024 06:08:09  31.6N  104.4W ML=2.2  EMSC   WESTERN TEXAS

O: 08MAY2024 12:39:27  31.7N  104.2W ML=2.2  EMSC   WESTERN TEXAS

O: 08MAY2024 17:14:57  31.7N  104.2W ML=2.2  EMSC   WESTERN TEXAS

O:  8MAY2024 09:29:58  31.6N  104.5W ML=2.4  EMSC   WESTERN TEXAS                

P:  7MAY2024 162707    32.6N  104.6W 2.0-4.3 AAAAA  SW U.S.A                   

 

O:  8MAY2024 12:25:05  41.6N  112.4W ML=2.5  EMSC   UTAH                         

O: 08MAY2024 13:04:19  41.6N  112.4W ML=2.2  EMSC   UTAH

P:  8MAY2024 162768    43.2N  111.0W 2.0-4.1 ABAAA  Yellowstone/Wyoming        

 

 

NEIC reported this earthquake of M 2.5 in Utah was felt with intensity up to III in the area(s) of  Utah at Thatcher.

 

EASTERN U.S./CANADA

 

O:  8MAY2024 11:10:17  39.8N   98.1W ML=2.5  EMSC   KANSAS                       

 

NEIC reported this earthquake of M 2.5 in Kansas was felt with intensity up to III in the area(s) of  Kansas in Formoso.

 

O: 08MAY2024 16:40:29  46.9N   76.0W MB=2.7  ECAN OF GRAND-REMOUS, QC   

O:  8MAY2024 16:40:29  46.9N   76.0W ML=2.7  EMSC   SOUTHERN QUEBEC, CANADA      

P:  3MAY2024 162749    47.0N   76.0W 2.0-4.1 BAAAA  New York State             

 

O:  9MAY2024 04:25:42  34.6N   85.0W MD=2.3  ANSS   WNW OF RESACA GEORGIA        

P:  5MAY2024 162719    34.0N   85.0W 2.0-4.4 BAAAA  Southeast U.S.             

 

HAWAII

 

No earthquakes of M>=3 were located in Hawaii.

 

 

SEISMIC ENHANCEMENT IN SOUTHERN OCEANS

 

EARTHQUAKE SUMMARY FOR MAY 7, 2024

 

The largest earthquakes today in the world occurred in the Southern Oceans and included an M 5.6 east of the South Sandwich Islands; an M 5.1 in the South Sandwich Islands and events of M 4.9 and 5.0 in the West Chile Rise. None of these were reported felt in their respective respective epicentral areas. A strong activation of events at high latitudes is often a sign of some geomagnetic storm triggering and today's activity is not an exception to this precedence. These events had been anticipated in forecasts 162854, 162853 and 162572 in early May. The largest - the M 5.6 in the southern Atlantic - is the strongest within about 300 km of that epicenter since an M 5.6 near this epicenter on March 3, 2023. At the time this summary noted:

 

 

"A pair of moderately strong earthquakes also occurred today in the area east of the South Sandwich Islands in the South Atlantic. This continues seismic enhancement with the geomagnetic storm at these high latitudes. This had been discussed in the previous issue of this summary as:

 

 

 

"A pair of moderate earthquakes also occurred in the South Georgia Island and South Sandwich Islands region southeast of South America today. The M 5.1 in the southern South Sandwich Islands occurred within about an hour of local solar noon and may have been promoted by strong tidal stresses and/or by the strong geomagnetic storm." (March 2, 3, 2023)

 

 

O:  7MAY2024 14:34:58  59.5S   18.0W MW=5.6  EMSC   EAST OF SOUTH SANDWICH ISLANDS

O: 07MAY2024 14:34:58  59.5S   18.0W mw=5.6  ANSS   the South Sandwich Islands

P:  5MAY2024 162854    61.0S   22.0W 4.0-5.8 ABBAA  Southern  Ocean            

 

O:  7MAY2024 07:55:59  57.6S   26.0W MB=5.1  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  7MAY2024 162853    58.0S   26.0W 4.0-5.8 AAAAA  So. Sandwich Islands       

 

O:  7MAY2024 23:28:26  41.5S   86.6W MB=5.0  EMSC   WEST CHILE RISE              

O: 07MAY2024 22:30:31  41.4S   84.7W Mw=4.9  EMSC   WEST CHILE RISE

P: 30APR2024 162572    41.0S   88.0W 4.0-5.6 CAAAA  Chile Rise                 

 

The strongest earthquake in the U.S. or Canada today was an M 4.1 on the border between Southern California and Baja California. This earthquake was closely associated  with a series of strong solar flares beginning with flare 270 (C9.3) around 01:00 UT and ending with flares 280 and 290 (about 01:15-01:35 UT) - an X1.0 class flare. It is likely it was promoted by SFE from those sources. The last earthquake of M>=4.1 within about 50 km of this epicenter in Baja California occurred as an M  4.8, 4.1 and 4.6 on February 12, 2024. At the time this summary noted:

 

 

"The largest earthquake in the U.S. or Canada today was an M 4.8 in Southern California. It was reported with intensity up to VI in the El Centro, California region. It was accompanied by a strong series of light aftershocks including some up to M 4.2.  EMSC reported it was strong enough to waken all with pictures shifting and objects falling off shelves in El Centro. Minor damage was reported. Strong intensity was felt in El Centro, Imperial, Calexico, La Quinta, Lakeside, El Cajon, Indio, Chula Vista, Santee, Palm Springs and as far as San Diego and Los Angeles, California with light intensity and in Baja Mexico in Pueblo Nuevo, Nueva, Cuauhtemoc, Prohogar, and in Yuma, Arizona. The last earthquake in southern California within about 100 km of today's epicenter with M>=4.8 occurred as an M 4.8 on December 1, 2023 but the last of larger magnitude was an M 5.3 on June 5, 2021. At the time of the M 4.8 on December 1, 2023 this summary noted in  this regard:

 

"The strongest earthquake in the U.S. or Canada today was an M 4.8 in Southern California. …  This event occurred within about 5 minutes of local solar midnight (07:43 UT whereas local solar midnight was at 07:21 UT). It is likely that it was promoted by strong geomagnetic and tidal stresses which maximize near this hour. It was followed by a series of light to moderate aftershocks and followed a number of regional foreshocks over the past several days. A foreshock of M 3.3 hit the area 8 minutes before the mainshock and was felt with intensity up to IV according to data from NEIC. This followed several hours after an M 2.7 which was felt lightly in Mecca, California. Aftershock sequences in this area can be quite extensive and continue strongly for several days. These often include events stronger than the first mainshock. This can be expected in the coming several days.  This activity and an M 3.9 in Utah minutes earlier coincided with the expected severe geomagnetic storm associated with CME from the M9.8 solar flare of November 28 hitting the ionosphere with an arcjet about 05:12 UT to 06:33 UT. as noted in the previous issue of this summary:

 

 

"... the strongest solar flare since August 7, 2023 when an X1.5 was observed.

The largest solar flare in the past year was an X2.2 on February 17, 2023 (#630). Today's event in Oman occurred towards the end of the M9.8 class solar flare (#3400)." (November 29, 2023, December 1, 2023, February 12, 2024)

 

 

NEIC reported this earthquake of M 4.1 in Baja California was felt with intensity up to IV in the area(s) of  Baja California in Delta.  Forecast 162709 had expected enhanced seismicity in this area was likely around May 9. 

 

 

O:  8MAY2024 01:14:36  32.4N  115.3W MW=4.1  EMSC   BAJA CALIFORNIA, MEXICO      

O: 08MAY2024 01:14:36  32.4N  115.2W mw=4.1  ANSS   NW of Delta B.C.

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 AAAAA  So. California             

 

A series of light earthquake occurred today in western Texas. The largest of these were of M 3.6 and 3.5 and were confined to periods near local noon and midnight. NEIC reported this earthquake of M 3.5 in Western Texas was felt with intensity up to IV in the area(s) of  Western Texas in Whites City, New Mexico.

NEIC reported earthquakes of M 3.2 and M 3.3 in Western Texas were felt with intensity up to III in the area(s) of  Western Texas in Toyah. This is not unusual activity for the area. Those near local noon were associated closely with flares 170-200 - the later of M2.1. Forecast 162707 had expected this activity in western Texas was likely around May 7.

 

O: 07MAY2024 08:53:25  31.7N  104.3W ML=3.6  EMSC   WESTERN TEXAS

O: 07MAY2024 08:57:36  31.7N  104.3W ML=2.2  EMSC   WESTERN TEXAS

O: 07MAY2024 19:46:11  31.7N  104.2W ML=3.5  EMSC   WESTERN TEXAS

O: 07MAY2024 19:47:17  31.7N  104.2W ML=3.3  EMSC   WESTERN TEXAS

O: 07MAY2024 19:50:14  31.7N  104.2W ML=2.0  EMSC   WESTERN TEXAS

O: 07MAY2024 19:50:56  31.7N  104.2W ML=2.1  EMSC   WESTERN TEXAS

O: 07MAY2024 19:56:55  31.7N  104.2W ML=3.2  EMSC   WESTERN TEXAS

O: 07MAY2024 20:31:24  31.7N  104.2W ML=2.3  EMSC   WESTERN TEXAS

O: 07MAY2024 23:27:41  31.7N  104.2W ML=3.2  EMSC   WESTERN TEXAS

O: 08MAY2024 02:49:03  31.7N  104.2W ML=2.0  EMSC   WESTERN TEXAS

O:  7MAY2024 08:47:03  31.7N  104.3W ML=3.5  EMSC   WESTERN TEXAS                

P:  7MAY2024 162707    32.6N  104.6W 2.0-4.3 AAAAA  SW U.S.A                   

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: 07MAY2024 17:21:16  23.8N  121.5E ML=4.2  EMSC   TAIWAN

O: 07MAY2024 20:19:58  23.9N  121.6E ML=4.4  EMSC   TAIWAN

O:  7MAY2024 12:48:42  23.7N  121.6E MB=4.5  EMSC   TAIWAN                       

P:  7MAY2024 162667    23.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

O:  8MAY2024 04:51:47  36.5N   71.4E MB=4.3  EMSC   HINDU KUSH REGION, AFGHANISTAN

P:  9MAY2024 162686    36.0N   72.0E 3.8-5.4 AAAAA  Hindu Kush/Pakistan        

 

INDONESIA AND PHILIPPINES

 

O:  8MAY2024 03:16:43   1.5N  123.0E ML=4.3  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 10MAY2024 162591     0.0N  124.0E 4.0-5.5 ABAAA  Mindanao, Philippines      

 

O:  7MAY2024 23:38:02   1.7N  126.4E ML=4.1  EMSC   MOLUCCA SEA                  

P:  5MAY2024 162589     1.0N  128.0E 4.0-5.5 AABAA  Halmahera                  

 

O:  7MAY2024 13:12:56   5.8N  124.7E MB=5.1  EMSC   MINDANAO, PHILIPPINES        

P:  8MAY2024 162592     6.0N  126.0E 4.0-5.4 AABAA  Mindanao, Philippines      

 

NEIC reported this earthquake of M 5.1 in Southern Mindanao, Philippines was felt with intensity up to III in the area(s) of  Southern Mindanao, Philippines in Maan.

EMSC reported moderate shaking in Mindanao in Maasim, General Santos City, Sultan Kudarat, Davao City,

PHIVOLCS reported it was felt with intensity IV in Kiamba and Maitum, Sarangani; Tupi, Tboli and Lake Sebu, South Cotabato; Palimbang, Siltan Kudarat and III in City of General Santos; Maasim, Alabel, Malapatan and Glan, Sarangani, Polomolok, south Catobato; City of Catabato wnd I-I in Davao del Sur.

 

O:  7MAY2024 22:09:55   9.2S  115.9E MB=4.6  EMSC   SOUTH OF BALI, INDONESIA     

P:  6MAY2024 162617     8.0S  118.0E 4.0-5.6 ABBAA  Sumbawa Island area        

 

NEIC reported this earthquake of M 4.6 in Indonesia was felt with intensity up to V in the area(s) of  Indonesia south of Bali.

EMSC reported moderate shaking with a rumbling noise in Indonesia at Sekotong, Pujut, Lombok Barat, Nusa Penida, Cakranggara, Batu Layar, Kuta Selatan, Laram, Karangawem, Denpasar, Sukawati, Blahbatuh, Kuta among others.

BMG reported intensity III in Kab. Badung at Kuta; Gianyar at Sukawata and in Denpasar, Lombok, Mararam with lesser shaking in Kab. Banyuwangi, Bondowoso, Situbondo, Surabaya, Jemvrana, Tabanan.

 

O:  7MAY2024 08:03:02  11.3N  125.8E MB=5.1  EMSC   SAMAR, PHILIPPINES           

P:  9MAY2024 162634    10.0N  125.0E 3.5-4.9 ABAAA  Luzon, Philippines         

 

NEIC reported this earthquake of M 5.1 in Samar, Philippines was felt with intensity up to IV in the area(s) of  Samar, Philippines at Hernani.

EMSC reported moderate shaking in Samar, Philippines at Tacloban City.

PHIVOLCS reported intensity IV in Hernani, Eastern Samar; III in Maydolong, Gen. MacArthur, Quinapondan and Balangkayan, Eastern Samar with lesser shaking in Leyte.

 

O:  7MAY2024 19:56:29  19.3N  120.5E MB=4.7  EMSC   BABUYAN ISL REGION, PHILIPPINE

P:  6MAY2024 162636    19.0N  121.0E 3.5-4.9 AAAAA  Luzon, Philippines         

 

CENTRAL AND SOUTH AMERICA

 

O:  7MAY2024 14:56:05   0.5N   77.6W ML=3.9  EMSC   COLOMBIA-ECUADOR BORDER REGION

P:  6MAY2024 162599     2.0S   78.0W 4.0-5.6 ACAAA  Ecuador                     

 

O:  8MAY2024 06:41:26   9.8S   80.0W ML=4.1  EMSC   OFF COAST OF NORTHERN PERU   

P:  2MAY2024 162607     9.0S   80.0W 4.0-5.7 CAAAA  No. Peru                   

 

O:  7MAY2024 22:22:49   4.5S   81.8W MB=4.5  EMSC   NEAR COAST OF NORTHERN PERU   

P: 30APR2024 162331     4.0S   80.0W 4.0-5.6 CABAA  Ecuador                    

 

O:  7MAY2024 21:44:27  10.8S   73.7W ML=4.2  EMSC   CENTRAL PERU                 

P:  8MAY2024 162807    11.0S   74.0W 4.0-5.7 AAAAA  Central Peru               

 

O: 07MAY2024 13:26:51  13.9N   93.1W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO

O:  7MAY2024 13:31:47  13.7N   92.5W ML=4.0  EMSC   OFFSHORE GUATEMALA           

O:  8MAY2024 05:26:58  13.9N   92.5W ML=4.2  EMSC   OFFSHORE GUATEMALA           

P:  7MAY2024 162630    13.0N   91.0W 3.5-5.5 AABAA  Guatemala                  

 

O:  8MAY2024 06:17:00  15.4S   75.4W ML=4.1  EMSC   NEAR COAST OF CENTRAL PERU   

P:  4MAY2024 162808    14.0S   76.0W 4.0-5.6 BBAAA  Central Peru               

 

O:  7MAY2024 18:54:13  18.0N   66.9W MD=3.0  EMSC   PUERTO RICO REGION           

P:  7MAY2024 162646    18.0N   66.0W 3.4-5.3 AAAAA  Puerto Rico                

P:  9MAY2024 162646    18.0N   67.0W 3.4-4.9 AAAAA  Puerto Rico                

 

O: 07MAY2024 18:34:25  19.1N   71.1W ML=3.0  EMSC   DOMINICAN REPUBLIC

O:  7MAY2024 10:33:03  18.4N   71.8W ML=3.3  EMSC   HAITI REGION                 

O:  7MAY2024 07:30:39  18.4N   73.7W ML=3.0  EMSC   HAITI REGION                 

P:  6MAY2024 162651    20.0N   73.0W 3.0-4.6 ABAAA  Bahamas/No. Caribbean      

 

O:  7MAY2024 11:58:16  18.6N  100.7W MB=4.5  EMSC   GUERRERO, MEXICO             

P:  8MAY2024 162645    18.0N  100.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O:  7MAY2024 18:05:30  25.5N  110.0W ML=3.9  EMSC   GULF OF CALIFORNIA           

P:  3MAY2024 162654    26.0N  110.0W 3.5-5.2 BAAAA  Gulf of California         

 

AFRICA AND EUROPE

 

O:  7MAY2024 07:25:38  26.9S   26.7E ML=3.0  EMSC   SOUTH AFRICA                 

O:  7MAY2024 11:12:29  27.3S   27.5E ML=3.6  EMSC   SOUTH AFRICA                 

P: 10MAY2024 162829    27.0S   27.0E 3.0-4.7 BAAAA  Rep. South Africa          

 

EMSC reported this earthquake of M 3.2 in South Africa was felt with intensity up to III in the area(s) of  South Africa in City of Matlosana.

 

O:  7MAY2024 15:32:23  45.6N   26.7E ML=4.1  EMSC   ROMANIA                      

P:  9MAY2024 162761    46.0N   27.0E 3.0-4.9 AAAAA  Romania/NW Turkey          

 

EMSC reported this earthquake of M 4.1 in Romania was felt with intensity up to III in the area(s) of  Romania at Barlad, Bucharest.

 

SOUTHWEST PACIFIC

 

O: 07MAY2024 09:18:28  20.6S  176.9W mb=4.3  EMSC   FIJI REGION

O:  8MAY2024 00:09:38  20.2S  176.0W MB=4.7  EMSC   FIJI REGION                  

P:  5MAY2024 162819    19.0S  176.0W 4.0-5.4 BBAAA  Tonga Islands              

 

O:  7MAY2024 08:10:14  21.7S  169.8E MB=4.7  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P:  7MAY2024 162827    22.0S  169.0E 4.0-5.5 AAAAA  Loyalty Islands            

 

OCEAN RIDGES

 

O:  7MAY2024 23:28:26  41.5S   86.6W MB=5.0  EMSC   WEST CHILE RISE              

O: 07MAY2024 22:30:31  41.4S   84.7W Mw=4.9  EMSC   WEST CHILE RISE

P: 30APR2024 162572    41.0S   88.0W 4.0-5.6 CAAAA  Chile Rise                 

 

O:  7MAY2024 07:55:59  57.6S   26.0W MB=5.1  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  7MAY2024 162853    58.0S   26.0W 4.0-5.8 AAAAA  So. Sandwich Islands       

 

O:  7MAY2024 14:34:58  59.5S   18.0W MW=5.6  EMSC   EAST OF SOUTH SANDWICH ISLANDS

O: 07MAY2024 14:34:58  59.5S   18.0W mw=5.6  ANSS   the South Sandwich Islands

P:  5MAY2024 162854    61.0S   22.0W 4.0-5.8 ABBAA  Southern  Ocean            

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today.

 

JAPAN AND KURIL ISLANDS

 

O:  7MAY2024 20:19:32  27.1N  140.3E MB=4.5  EMSC   BONIN ISLANDS, JAPAN REGION  

P:  9MAY2024 162652    27.0N  140.0E 4.0-5.4 AAAAA  Bonin Islands              

 

O:  7MAY2024 18:04:48  33.1N  138.2E MB=4.0  EMSC   IZU ISLANDS, JAPAN REGION    

P:  7MAY2024 162683    33.0N  137.0E 3.5-4.9 AAAAA  Central/So. Honshu Japan   

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  8MAY2024 01:14:36  32.4N  115.3W MW=4.1  EMSC   BAJA CALIFORNIA, MEXICO      

O: 08MAY2024 01:14:36  32.4N  115.2W mw=4.1  ANSS   NW of Delta B.C.

P:  9MAY2024 162709    32.6N  116.1W 2.5-4.5 AAAAA  So. California             

 

O:  8MAY2024 00:00:36  33.8N  117.6W ML=2.3  EMSC   GREATER LOS ANGELES AREA, CALI

P:  6MAY2024 162714    34.3N  117.5W 2.5-4.5 AAAAA  So. California             

 

O:  7MAY2024 07:47:40  35.3N  118.5W ML=2.7  EMSC   CENTRAL CALIFORNIA           

P:  7MAY2024 162716    35.4N  118.5W 2.5-4.5 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.7 in Central California was felt with intensity up to III in the area(s) of  Central California in Tehachapi.

 

O:  7MAY2024 17:53:31  37.1N  121.5W MD=2.1  EMSC   NORTHERN CALIFORNIA          

O: 07MAY2024 17:53:31  37.1N  121.5W md=2.1  ANSS   NE of Gilroy CA

P:  9MAY2024 162678    36.8N  121.3W 2.5-4.6 AAAAA  Central California         

 

O:  8MAY2024 01:35:57  40.0N  121.1W MD=2.6  EMSC   NORTHERN CALIFORNIA          

P:  8MAY2024 162752    40.0N  120.9W 2.5-4.9 AAAAA  Northern California        

 

NEIC reported this earthquake of M 2.6 in Northern California was felt with intensity up to IV in the area(s) of  Northern California in Caribou.

 

 

ALASKA

 

O:  7MAY2024 15:01:50  51.7N  179.8E ML=3.9  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P:  9MAY2024 162772    52.1N  180.0E 3.5-5.1 AAAAA  Andreanoff Isls, Aleutians 

 

O:  7MAY2024 16:06:57  51.9N  171.5W ML=3.7  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P:  3MAY2024 162773    52.2N  171.5W 3.5-4.9 BAAAA  Andreanoff Isls, Aleutians 

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O:  7MAY2024 20:37:46  42.4N  126.3W ML=2.7  EMSC   OFF COAST OF OREGON          

P:  4MAY2024 162754    41.8N  126.9W 2.5-4.6 BAAAA  Off Coast of No. Calif     

 

O:  6MAY2024 17:55:00  51.3N  130.8W MB=3.1  ECAN OF PORT HARDY, BC              

P:  6MAY2024 162774    50.5N  130.4W 3.0-4.9 AAAAA  British Colombia           

 

O:  7MAY2024 11:07:40  49.2N  128.7W MB=3.0  ECAN OF PORT ALICE, BC              

P:  4MAY2024 162765    49.3N  129.0W 2.8-5.1 BAAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

O: 07MAY2024 08:53:25  31.7N  104.3W ML=3.6  EMSC   WESTERN TEXAS

O: 07MAY2024 08:57:36  31.7N  104.3W ML=2.2  EMSC   WESTERN TEXAS

O: 07MAY2024 19:46:11  31.7N  104.2W ML=3.5  EMSC   WESTERN TEXAS

O: 07MAY2024 19:47:17  31.7N  104.2W ML=3.3  EMSC   WESTERN TEXAS

O: 07MAY2024 19:50:14  31.7N  104.2W ML=2.0  EMSC   WESTERN TEXAS

O: 07MAY2024 19:50:56  31.7N  104.2W ML=2.1  EMSC   WESTERN TEXAS

O: 07MAY2024 19:56:55  31.7N  104.2W ML=3.2  EMSC   WESTERN TEXAS

O: 07MAY2024 20:31:24  31.7N  104.2W ML=2.3  EMSC   WESTERN TEXAS

O: 07MAY2024 23:27:41  31.7N  104.2W ML=3.2  EMSC   WESTERN TEXAS

O: 08MAY2024 02:49:03  31.7N  104.2W ML=2.0  EMSC   WESTERN TEXAS

O:  7MAY2024 08:47:03  31.7N  104.3W ML=3.5  EMSC   WESTERN TEXAS                

P:  7MAY2024 162707    32.6N  104.6W 2.0-4.3 AAAAA  SW U.S.A                    

 

O: 07MAY2024 11:47:37  41.6N  112.5W ML=2.7  EMSC   UTAH

O:  7MAY2024 11:01:00  41.6N  112.4W ML=2.0  EMSC   UTAH                         

P:  8MAY2024 162768    43.2N  111.0W 2.0-4.1 ABBAA  Yellowstone/Wyoming        

 

NEIC reported this earthquake of M 2.8 in Utah was felt with intensity up to III in the area(s) of  Utah in Thatcher.

 

O: 07MAY2024 16:51:22  44.3N  114.9W ML=2.3  EMSC   SOUTHERN IDAHO

O: 07MAY2024 17:00:33  44.3N  114.9W ML=2.6  EMSC   SOUTHERN IDAHO

O: 07MAY2024 17:34:18  44.3N  114.9W ML=2.1  EMSC   SOUTHERN IDAHO

O: 07MAY2024 22:02:15  44.3N  114.9W ML=2.2  EMSC   SOUTHERN IDAHO

O:  7MAY2024 16:33:59  44.3N  114.8W ML=2.4  EMSC   SOUTHERN IDAHO               

P: 10MAY2024 162743    44.5N  112.6W 2.0-3.9 BABAA  Montana/Idaho              

 

NEIC reported this earthquake of M 2.5 in Southern Idaho was felt with intensity up to III in the area(s) of  Southern Idaho in Stanley.

 

EASTERN U.S./CANADA

 

O: 07MAY2024 10:55:56  28.5N  100.1W ML=2.5  EMSC   SOUTHERN TEXAS

P:  3MAY2024 162662    28.0N   99.0W 3.0-4.4 BAAAA  Northern Mexico            

 

NEIC reported this earthquake of M 2.5 in Southern Texas was felt with intensity up to III in the area(s) of  Southern Texas at Carrizo Springs.

 

O:  8MAY2024 16:40:29  46.9N   76.0W MB=2.7  ECAN OF GRAND-REMOUS, QC            

P:  3MAY2024 162749    47.0N   76.0W 2.0-4.1 BAAAA  New York State             

 

O:  7MAY2024 17:13:21  48.3N   87.4W MB=1.8  ECAN OF TERRACE BAY, ON             

 

O:  7MAY2024 02:58:49  47.1N   70.4W MB=1.0  ECAN OF L'ISLET-SUR-MER, QC         

P:  5MAY2024 162747    47.3N   70.5W 2.0-4.1 AAAAA  New England                

 

O:  7MAY2024 00:07:15  50.0N   66.7W MB=1.6  ECAN OF PORT-CARTIER, QC            

P:  7MAY2024 162736    49.0N   66.0W 2.0-4.6 AAAAA  E. of Maine                

 

O:  8MAY2024 02:19:05  40.7N   74.8W ML=1.6  ANSS   CALIFON NEW JERSEY           

P:  3MAY2024 162748    41.0N   74.0W 2.0-4.1 BAAAA  New York State             

P: 10MAY2024 162748    42.0N   74.0W 2.0-4.1 ABAAA  New York State             

 

EMSC reported an earthquake of M 2.4 in Oklahoma  was felt with intensity up to III in the area(s) of  Oklahoma  at Edmond.

 

HAWAII

 

O:  7MAY2024 19:26:03  19.4N  155.2W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII     

 

NEIC reported this earthquake of M 3.3 in Hawaii was felt with intensity up to IV in the area(s) of  Hawaii at Volcano.