STRONG EARTHQUAKE AFTERSHOCKS STRIKE TAIWAN
EARTHQUAKE SUMMARY FOR APRIL 22, 2024
A strong series of aftershocks of moderate to large magnitude occurred in Taiwan with two strong quakes of M 6.0 and 6.1 today. Local news reports these event have caused further damage to structures weakened by the M 7.4 in Taiwan of April 2, 2024. These are the strongest aftershocks in Taiwan of the April 2, 2004 mainshock since April 2 when an M 6.4 aftershock occurred. NEIC reported the events of M 6.0 and M 6.1 were felt with intensity up to VIII with damage in Hualien City, Taiwan. EMSC reported they were felt in Taiwan with strong to extreme intensity in Zhuangwei Township East Districk, Hsinchu, Shihjhalun, Xindian District, Wenshan District, Yonghe District, New Taipei City, Da'an District, Zhongzhen District, Beitou District, Tamsui District. Regional press reported damage to many structures as well as to infrastructure and landslides were particularly destructive. Some injuries have been reported. The first of the moderately large earthquakes in Taiwan today occurred near local solar midnight and may have been promoted by the full moon of April 23. Forecast seismicity with the full moon had been noted in previous issues of this summary as:
"The full moon will arrive on April 23, 2024 at 23:49 UT. Longitudes which are at local solar midnight at this time are located at about 5 East while those at local solar noon are near 175 West. In the east these include most of western Europe and Iceland while in the west areas of the western Aleutians, Alaska, Hawaii, Tonga/Fiji/Kermadec Islands, New Zealand to the Balleny Islands and portions of the Pacific-Antarctic Ridge are included. These are the most likely areas to see significant tidal triggering with this full moon. Other areas may also see tidal promotion in the next week especially at times of large solar flares and near local solar midnight and solar noon. The likelihood of a strong associated earthquake with this full moon are moderate to high." (April 17-23, 2024)
This series has been building in the past two days but broke wide open today. This summary noted it in the previous issue as:
"As a prelude to the full moon of April 23, seismicity continued to heat up in Taiwan. NEIC reported an earthquake of M 4.7 in Taiwan today was felt with intensity up to III in the area(s) of Taiwan in Hualien City. EMSC reported gentle to strong shaking in Taiwan at Jiaoxi Township, New Taipei City, and the Districts of Da'an, Tamsui. In the previous summary it was noted as:
"An M 5.1 also occurred as an aftershock to the M 7.4 in Taiwan of April 2, 2024. NEIC reported this earthquake of M 5.1 in Taiwan was felt with intensity up to IV in the area(s) of Taiwan in Hualien City. EMSC reported strong shaking in Taiwan in the Qingshui and Nangang Districts and in Taipei City. This is the strongest aftershock in Taiwan of that event since an M 5.2 on April 6, 2024
and the second strongest since immediate aftershocks of M 5.5 and 5.2 on April 3, 2024. Today's activity occurred near local solar noon when tidal stresses are high. This suggests that tidal promotion with the upcoming full moon may be occurring at this time and that further moderate to strong earthquakes may follow in the next several days in Taiwan." (April 21, 22, 2024)
Forecasts 162126 and 162393 had expected enhanced seismicity in this area of Taiwan was likely around April 20-23.
Following is a listing of earthquakes with M>=5 in today's series. A more extensive listing of events today of M>=4 in Taiwan can be found in the "ASIA" section of this summary. This activity is at the fourth node (90 degrees) from the M 6.7 in the Macquarie Island area of March 3, 2024 and may have been promoted by energy from that source.
O: 22APR2024 09:08:40 23.7N 121.6E Mw=5.3 EMSC TAIWAN
O: 22APR2024 10:46:22 23.7N 121.6E mb=5.2 EMSC TAIWAN
O: 22APR2024 10:50:32 23.7N 121.6E mb=5.6 EMSC TAIWAN
O: 22APR2024 11:25:14 23.7N 121.6E mb=5.0 EMSC TAIWAN
O: 22APR2024 11:45:36 23.7N 121.6E mb=5.1 EMSC TAIWAN
O: 22APR2024 13:13:41 23.7N 121.6E Mw=5.0 EMSC TAIWAN
O: 22APR2024 14:20:09 23.7N 121.6E mb=5.0 EMSC TAIWAN
O: 22APR2024 20:49:57 23.7N 121.6E Mw=5.5 EMSC TAIWAN
O: 22APR2024 21:04:22 23.7N 121.6E Mw=5.4 EMSC TAIWAN
O: 22APR2024 21:14:47 23.7N 121.6E mb=5.2 EMSC TAIWAN
O: 22APR2024 21:24:31 23.7N 121.6E mb=5.2 EMSC TAIWAN
O: 22APR2024 09:12:11 23.8N 121.6E mb=5.1 EMSC TAIWAN
O: 22APR2024 09:16:00 23.8N 121.5E mb=5.2 EMSC TAIWAN
O: 22APR2024 11:13:11 23.8N 121.6E mb=5.1 EMSC TAIWAN
O: 22APR2024 14:11:24 23.8N 121.5E Mw=5.8 EMSC TAIWAN
O: 22APR2024 18:26:54 23.8N 121.6E Mw=6.1 EMSC TAIWAN
O: 22APR2024 18:56:50 23.8N 121.6E ML=4.1 EMSC TAIWAN
O: 22APR2024 19:00:16 23.8N 121.6E ML=4.2 EMSC TAIWAN
O: 22APR2024 19:13:40 23.8N 121.6E mb=4.6 EMSC TAIWAN
O: 22APR2024 19:19:54 23.8N 121.7E mb=5.0 EMSC TAIWAN
O: 22APR2024 20:03:07 23.8N 121.7E mb=5.2 EMSC TAIWAN
O: 22APR2024 21:19:36 23.8N 121.6E Mw=5.3 EMSC TAIWAN
O: 22APR2024 21:31:39 23.8N 121.7E Mw=5.4 EMSC TAIWAN
O: 23APR2024 00:04:05 23.8N 121.7E Mw=5.8 EMSC TAIWAN
O: 23APR2024 02:21:01 23.8N 121.7E Mw=5.2 EMSC TAIWAN
O: 22APR2024 18:32:49 23.9N 121.6E Mw=6.0 EMSC TAIWAN
O: 23APR2024 00:11:02 23.9N 121.6E mb=5.2 EMSC TAIWAN
P: 20APR2024 162126 23.0N 121.0E 4.0-5.4 AAAAA Taiwan
P: 23APR2024 162393 24.0N 121.0E 4.0-5.4 AAAAA Taiwan
An earthquake of M 5.5 also occurred today in the State of Yap, Micronesia southwest of Guam. It was not reported felt in this area. An earthquake of M 6.0 hit near this epicenter in Yap on February 14, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.0 in Micronesia. NEIC reported it was felt with intensity up to IV in Micronesia near Colonia. The last earthquakes of equal or greater magnitude within about 200 km of this epicenter in Yap, Micronesia occurred as event of M 6.5, 6.4 and 6.1 on December 8-9, 2017. At the time this summary noted:
"The largest earthquakes of the day occurred as an M 6.5 and 6.3 in the State of Yap, Micronesia. The first of these, an M 6.3 occurred within about half an hour of local solar noon and was probably promoted by tidal stresses which maximize at this time. It is also located on or near the geomagnetic equator and was probably promoted by the strong geomagnetic storm of the last several days. The last earthquake within about 200 km of this epicenter with M>=6.5 occurred on January 16, 2005 with M 6.6, the only other such event in the region in the past 25 years." (December 8, 2017, February 14, 2024)
Forecast 162107 had expected today's event was likely in mid-April. This epicenter is at the sixth node from the M 7.0 in Xinjiang, China of January 22, 2024 and may have been promoted by energy from that source.
O: 22APR2024 11:40:14 11.0N 138.7E mb=5.2 EMSC STATE OF YAP, MICRONESIA
O: 22APR2024 12:22:51 11.0N 138.7E MW=5.5 EMSC STATE OF YAP, MICRONESIA
P: 12APR2024 162107 12.0N 142.0E 4.0-5.5 CABAA So. Marianas/Guam
The strongest earthquake in the U.S. or Canada today was an M 3.5-3.7 north of Juneau, Alaska. NEIC reported it was felt with intensity up to IV in Juneau, Alaska. Forecast 162507 had expected activity within about 50 km of this epicenter was likely around April 22.
O: 22APR2024 13:37:27 58.8N 134.5W ML=3.5 EMSC SOUTHEASTERN ALASKA
O: 22APR2024 13:37:29 58.8N 134.5W MB=3.7 ECAN OF JUNEAU, AK
P: 22APR2024 162507 58.3N 133.5W 3.0-4.9 AAAAA British Colombia
An unusual earthquake of M 1.5-2.5 occurred today in Watertown, New York. This epicenter was on the path of total eclipse of the sun on April 8 where the eclipse was visible for more than 4 minutes. This event was probably promoted by strong tidal stresses associated with that eclipse.
Forecast 162477 had expected this event in New York was likely around April 23.
O: 22APR2024 00:19:57 43.7N 75.2W MB=1.5 ECAN OF WATERTOWN, NY
P: 23APR2024 162477 44.0N 74.0W 2.0-4.1 AAAAA New York State
A series of minor earthquakes occurred in northern Mexico in Tamaulipas today. This epicenter saw the total eclipse of the sun on April 8, 2024 when it was at its greatest. Today's activity was probably promoted by strong tidal stresses at that time. Forecast 162122 had expected enhanced seismicity in this area in mid-April.
O: 22APR2024 19:39:03 24.8N 98.5W ML=3.8 EMSC TAMAULIPAS, MEXICO
P: 12APR2024 162122 26.0N 102.0W 3.0-4.7 CBCAA Northern Mexico
An earthquake of M 4.3-4.6 also shook the region of North Island, New Zealand today. NEIC reported this earthquake of M 4.3 in North Island, New Zealand was felt with intensity up to III in the area(s) of North Island, New Zealand in Bay View. EMSC reported this earthquake of M 4.6 in North Island, New Zealand was felt with intensity up to III in the area(s) of North Island, New Zealand in Napier. GEONET reported this earthquake was felt with moderate intensity in the area of Taupo, North Island, New Zealand with moderate shaking felt by 1711 people in northern North Island. Nearly 1711 people reported feeling this earthquake with 944 with weak intensity, 686 light, 72 moderate, 6 strong, 0 severe and 1 extreme. This event was probably promoted by strong tidal stresses with today's full moon. New Zealand is at the longitude of maximum tidal stress with the full moon as noted in previous issues of this summary:
"The full moon will arrive on April 23, 2024 at 23:49 UT. Longitudes which are at local solar midnight at this time are located at about 5 East while those at local solar noon are near 175 West. In the east these include most of western Europe and Iceland while in the west areas of the western Aleutians, Alaska, Hawaii, Tonga/Fiji/Kermadec Islands, New Zealand to the Balleny Islands and portions of the Pacific-Antarctic Ridge are included. These are the most likely areas to see significant tidal triggering with this full moon. Other areas may also see tidal promotion in the next week especially at times of large solar flares and near local solar midnight and solar noon. The likelihood of a strong associated earthquake with this full moon are moderate to high." (April 18-23, 2024)
Forecast 162573 had expected today's event within about 100 km was likely
around April 22.
O: 22APR2023 21:57:41 39.1S 176.4E MS=4.7 GEONET North Island, New Zealand
O: 22APR2024 21:57:40 39.1S 176.4E MB=4.3 ANSS BAY VIEW NEW ZEALAND
P: 22APR2024 162573 40.0S 176.0E 3.0-4.4 AAAAA North Island, N.Z.
A series of earthquake with Magnitude up to 2.2 occurred today near Bangor, Maine. The largest may have been lightly felt in Bangor. The last earthquake within about 100 km of these epicenters with M>=2.2 occurred on January 14, 2023 with M 3.3. At the time this summary noted:
"A series of light earthquakes were felt in southern Maine near Augusta today. The largest of these was an M 3.3 which NEIC reported was felt with maximum intensity IV in Holden, Orland, Orrington and II-III in Bucksport, Ellsworth, Eddington, Brewer, Penobscot, Orono and Winterport and as far as Bethel and Portland, Maine. This activity began with an M 2.2 at 12:17 UT on January 13 but a series of aftershocks were widely felt near local solar midnight on January 14, 2023. Solar flare 9950 occurred simultaneously with these events on January 14 and SFE from this flare may have helped trigger these events. The M 3.3 is the strongest earthquake in Maine within about 100 km of these epicenters since an M 3.8 on October 3, 2006 – the strongest event in this area in at least 30 years (a similar M 3.8 hit the area on February 26, 1999 about 125 km to the southwest of today's epicenter)." (January 14, 2023)
This epicenter is on the edge of the path of total eclipse of the sun of April 8 at 19:32 UT and may have been promoted by tidal stresses with that event.
Forecast 162467 had expected this activity was likely within about 25 km of this epicenter in late April, 2024.
O: 21APR2024 09:06:27 44.8N 68.3W MB=1.2 ECAN OF BANGOR, ME
O: 21APR2024 14:42:40 44.9N 68.3W MB=1.2 ECAN OF BANGOR, ME
O: 21APR2024 02:35:02 44.9N 68.3W MB=2.2 ECAN OF BANGOR, ME
P: 29APR2024 162467 45.0N 68.0W 2.0-4.1 CAAAA Maine
An earthquake of M 2.1 also occurred in Illinois today. It may have been lightly felt in the epicentral area but this has not been reported. This epicenter was directly at the path of total eclipse on April 8, 2024 at 19:00 UT and was probably promoted by energy from strong tides associated with that event.
Forecast 162422 had expected this activity within about 50 km was likely around April 21-25.
O: 22APR2024 08:52:33 37.3N 89.3W MD=2.1 EMSC ILLINOIS
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 AAAAA New Madrid area
P: 25APR2024 162422 37.0N 90.0W 2.0-4.0 BAAAA New Madrid area
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: 23APR2024 01:30:36 36.6N 68.7E MB=4.3 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 23APR2024 162416 37.0N 71.0E 3.8-5.5 AABAA Hindu Kush/Pakistan
P: 29APR2024 162416 37.0N 69.0E 3.8-5.3 CAAAA Hindu Kush/Pakistan
O: 22APR2024 13:08:50 42.0N 82.7E MB=4.6 EMSC NORTHERN XINJIANG, CHINA
P: 12APR2024 162198 42.0N 82.0E 4.0-5.8 CAAAA Kirgizstan/Xinjiang
P: 21APR2024 162466 42.0N 79.0E 4.0-5.7 AACAA Kirgizstan/Xinjiang
O: 22APR2024 21:16:36 41.7N 82.1E mb=4.0 EMSC SOUTHERN XINJIANG, CHINA
O: 22APR2024 19:09:43 46.2N 53.5E MB=4.0 EMSC WESTERN KAZAKHSTAN
NEIC reported this earthquake of M 4.0 in Kazakhstan was felt with intensity up to III in the area(s) of Kazakhstan in Karaton.
EMSC reported moderate intensity in Kazakhstan in Qosshagyl auyldyq okrug, Tengiz, Qulsary qalalyq akimshilik.
O: 22APR2024 09:08:40 23.7N 121.6E Mw=5.3 EMSC TAIWAN
O: 22APR2024 09:52:55 23.7N 121.6E mb=4.9 EMSC TAIWAN
O: 22APR2024 10:08:07 23.7N 121.5E mb=4.6 EMSC TAIWAN
O: 22APR2024 10:46:22 23.7N 121.6E mb=5.2 EMSC TAIWAN
O: 22APR2024 10:50:32 23.7N 121.6E mb=5.6 EMSC TAIWAN
O: 22APR2024 11:10:43 23.7N 121.5E mb=4.9 EMSC TAIWAN
O: 22APR2024 11:22:52 23.7N 121.5E ML=4.5 EMSC TAIWAN
O: 22APR2024 11:25:14 23.7N 121.6E mb=5.0 EMSC TAIWAN
O: 22APR2024 11:36:38 23.7N 121.5E ML=4.2 EMSC TAIWAN
O: 22APR2024 11:45:36 23.7N 121.6E mb=5.1 EMSC TAIWAN
O: 22APR2024 13:00:43 23.7N 121.6E Mw=4.5 EMSC TAIWAN
O: 22APR2024 13:13:41 23.7N 121.6E Mw=5.0 EMSC TAIWAN
O: 22APR2024 14:12:41 23.7N 121.5E ML=4.3 EMSC TAIWAN
O: 22APR2024 14:20:09 23.7N 121.6E mb=5.0 EMSC TAIWAN
O: 22APR2024 15:56:44 23.7N 121.6E Mw=4.4 EMSC TAIWAN
O: 22APR2024 16:06:30 23.7N 121.6E ML=4.3 EMSC TAIWAN
O: 22APR2024 17:40:24 23.7N 121.6E mb=4.5 EMSC TAIWAN
O: 22APR2024 19:17:22 23.7N 121.6E ML=4.1 EMSC TAIWAN
O: 22APR2024 20:49:57 23.7N 121.6E Mw=5.5 EMSC TAIWAN
O: 22APR2024 21:01:58 23.7N 121.5E ML=4.2 EMSC TAIWAN
O: 22APR2024 21:04:22 23.7N 121.6E Mw=5.4 EMSC TAIWAN
O: 22APR2024 21:08:24 23.7N 121.5E ML=4.2 EMSC TAIWAN
O: 22APR2024 21:11:01 23.7N 121.6E mb=4.9 EMSC TAIWAN
O: 22APR2024 21:14:47 23.7N 121.6E mb=5.2 EMSC TAIWAN
O: 22APR2024 21:24:31 23.7N 121.6E mb=5.2 EMSC TAIWAN
O: 22APR2024 21:26:51 23.7N 121.5E ML=4.1 EMSC TAIWAN
O: 22APR2024 23:02:44 23.7N 121.6E Mw=4.5 EMSC TAIWAN
O: 22APR2024 09:12:11 23.8N 121.6E mb=5.1 EMSC TAIWAN
O: 22APR2024 09:16:00 23.8N 121.5E mb=5.2 EMSC TAIWAN
O: 22APR2024 10:55:24 23.8N 121.5E ML=4.4 EMSC TAIWAN
O: 22APR2024 11:13:11 23.8N 121.6E mb=5.1 EMSC TAIWAN
O: 22APR2024 11:34:30 23.8N 121.5E mb=4.9 EMSC TAIWAN
O: 22APR2024 11:47:33 23.8N 121.5E ML=4.3 EMSC TAIWAN
O: 22APR2024 13:02:21 23.8N 121.5E ML=4.4 EMSC TAIWAN
O: 22APR2024 13:42:57 23.8N 121.6E Mw=4.4 EMSC TAIWAN
O: 22APR2024 14:11:24 23.8N 121.5E Mw=5.8 EMSC TAIWAN
O: 22APR2024 14:13:59 23.8N 121.5E ML=4.3 EMSC TAIWAN
O: 22APR2024 14:27:59 23.8N 121.5E ML=4.2 EMSC TAIWAN
O: 22APR2024 15:14:59 23.8N 121.6E ML=4.2 EMSC TAIWAN
O: 22APR2024 16:01:59 23.8N 121.5E ML=4.6 EMSC TAIWAN
O: 22APR2024 16:33:04 23.8N 121.7E Mw=4.1 EMSC TAIWAN
O: 22APR2024 16:45:24 23.8N 121.6E Mw=4.0 EMSC TAIWAN
O: 22APR2024 16:49:58 23.8N 121.4E ML=4.0 EMSC TAIWAN
O: 22APR2024 18:12:01 23.8N 121.5E ML=4.0 EMSC TAIWAN
O: 22APR2024 18:26:54 23.8N 121.6E Mw=6.1 EMSC TAIWAN
O: 22APR2024 18:56:50 23.8N 121.6E ML=4.1 EMSC TAIWAN
O: 22APR2024 19:00:16 23.8N 121.6E ML=4.2 EMSC TAIWAN
O: 22APR2024 19:13:40 23.8N 121.6E mb=4.6 EMSC TAIWAN
O: 22APR2024 19:19:54 23.8N 121.7E mb=5.0 EMSC TAIWAN
O: 22APR2024 19:28:32 23.8N 121.5E mb=4.9 EMSC TAIWAN
O: 22APR2024 19:34:05 23.8N 121.6E mb=4.9 EMSC TAIWAN
O: 22APR2024 19:57:27 23.8N 121.6E ML=4.3 EMSC TAIWAN
O: 22APR2024 20:03:07 23.8N 121.7E mb=5.2 EMSC TAIWAN
O: 22APR2024 20:10:46 23.8N 121.5E ML=4.0 EMSC TAIWAN
O: 22APR2024 21:13:34 23.8N 121.5E ML=4.1 EMSC TAIWAN
O: 22APR2024 21:19:36 23.8N 121.6E Mw=5.3 EMSC TAIWAN
O: 22APR2024 21:31:39 23.8N 121.7E Mw=5.4 EMSC TAIWAN
O: 22APR2024 21:46:42 23.8N 121.6E ML=4.2 EMSC TAIWAN
O: 22APR2024 22:26:20 23.8N 121.5E mb=4.2 EMSC TAIWAN
O: 22APR2024 23:35:39 23.8N 121.6E mb=4.3 EMSC TAIWAN
O: 23APR2024 00:04:05 23.8N 121.7E Mw=5.8 EMSC TAIWAN
O: 23APR2024 00:06:29 23.8N 121.6E ML=4.3 EMSC TAIWAN
O: 23APR2024 01:19:33 23.8N 121.6E mb=4.6 EMSC TAIWAN
O: 23APR2024 01:22:43 23.8N 121.5E mb=4.7 EMSC TAIWAN
O: 23APR2024 01:45:46 23.8N 121.6E Mw=4.9 EMSC TAIWAN
O: 23APR2024 02:21:01 23.8N 121.7E Mw=5.2 EMSC TAIWAN
O: 23APR2024 03:44:02 23.8N 121.6E ML=4.0 EMSC TAIWAN
O: 23APR2024 05:08:07 23.8N 121.6E mb=4.7 EMSC TAIWAN
O: 22APR2024 18:32:49 23.9N 121.6E Mw=6.0 EMSC TAIWAN
O: 22APR2024 19:24:13 23.9N 121.6E ML=4.2 EMSC TAIWAN
O: 22APR2024 20:07:03 23.9N 121.5E ML=4.4 EMSC TAIWAN
O: 22APR2024 23:17:07 23.9N 121.6E ML=4.1 EMSC TAIWAN
O: 22APR2024 23:38:45 23.9N 121.6E ML=4.3 EMSC TAIWAN
O: 23APR2024 00:11:02 23.9N 121.6E mb=5.2 EMSC TAIWAN
O: 23APR2024 00:55:29 23.9N 121.5E ML=4.4 EMSC TAIWAN
O: 23APR2024 02:27:05 23.9N 121.6E ML=4.4 EMSC TAIWAN
O: 23APR2024 05:24:19 23.9N 121.6E ML=4.0 EMSC TAIWAN
O: 22APR2024 15:45:38 24.2N 121.6E ML=4.3 EMSC TAIWAN
O: 22APR2024 16:48:17 24.2N 121.6E ML=4.3 EMSC TAIWAN
P: 20APR2024 162126 23.0N 121.0E 4.0-5.4 AAAAA Taiwan
P: 23APR2024 162393 24.0N 121.0E 4.0-5.4 AAAAA Taiwan
INDONESIA AND PHILIPPINES
O: 22APR2024 11:18:47 0.7N 123.8E MB=4.9 EMSC MINAHASA, SULAWESI, INDONESIA
P: 24APR2024 162323 0.0N 124.0E 4.0-5.7 AAAAA Mindanao, Philippines
O: 22APR2024 19:36:18 0.8S 122.1E ML=4.2 EMSC SULAWESI, INDONESIA
P: 24APR2024 162314 1.0N 122.0E 4.0-5.4 ABAAA Celebes Sea
O: 22APR2024 16:30:46 1.0N 98.8E MB=4.5 EMSC NIAS REGION, INDONESIA
P: 21APR2024 162325 2.0N 99.0E 4.0-5.4 AAAAA So. Sumatera
O: 23APR2024 05:56:33 6.1S 127.6E MB=4.5 EMSC BANDA SEA
P: 28APR2024 162330 4.0S 129.0E 4.0-5.4 BCBAA Ceram area
O: 22APR2024 17:01:05 6.2S 150.8E MB=4.4 EMSC NEW BRITAIN REGION, P.N.G.
P: 25APR2024 162337 6.0S 151.0E 4.0-5.5 BAAAA New Ireland
O: 22APR2024 17:17:22 7.6S 117.4E MB=4.0 EMSC BALI SEA
P: 25APR2024 162348 8.0S 117.0E 4.0-5.4 BAAAA Sumbawa Island area
O: 22APR2024 22:11:40 7.7S 127.6E MB=4.5 EMSC KEPULAUAN BARAT DAYA, INDONESI
P: 23APR2024 162332 9.0S 124.0E 4.0-5.4 ABCAA Flores Island area
O: 22APR2024 23:21:11 8.3N 126.6E MB=4.4 EMSC MINDANAO, PHILIPPINES
P: 25APR2024 162317 9.0N 126.0E 4.0-5.4 BAAAA Central Philippines
EMSC reported this earthquake of M 4.1 in Mindanao, Philippines was felt with intensity up to III in the area(s) of Mindanao, Philippines in Davao City.
O: 22APR2024 11:11:34 8.9S 111.3E mb=5.3 EMSC JAVA, INDONESIA
O: 22APR2024 11:10:51 8.9S 111.4E MB=5.2 EMSC JAVA, INDONESIA
P: 24APR2024 162343 9.0S 111.0E 4.0-5.6 AAAAA So. of Java
NEIC reported this earthquake of M 5.3 South of Java was felt with intensity up to III in the area(s) of Java in Trenggalek, Indonesia.
EMSC reported a short shake in Pacotan, Gandusari, Kedungwaru, Nquntoronadi, Blitar, Turi, Mengwi, Indonesia.
BMG reported intensity III in Kab Gunungkidul, Pnorogo, Tulungagung and Magetan with lesser shaking of intensity II in Kebumen, Purworejo, Klaten, Wonogiri, Bantul among others.
O: 22APR2024 11:40:14 11.0N 138.7E mb=5.2 EMSC STATE OF YAP, MICRONESIA
O: 22APR2024 12:22:51 11.0N 138.7E MW=5.5 EMSC STATE OF YAP, MICRONESIA
P: 12APR2024 162107 12.0N 142.0E 4.0-5.5 CABAA So. Marianas/Guam
CENTRAL AND SOUTH AMERICA
O: 22APR2024 09:20:24 14.9N 93.5W ML=4.0 EMSC OFFSHORE CHIAPAS, MEXICO
P: 21APR2024 162355 14.0N 93.0W 3.5-5.3 AAAAA Chiapas, Mexico
O: 22APR2024 22:47:02 15.9S 74.2W ML=4.0 EMSC NEAR COAST OF SOUTHERN PERU
P: 28APR2024 162538 15.0S 76.0W 4.0-5.6 CABAA Central Peru
P: 28APR2024 162541 16.0S 73.0W 4.0-6.0 CAAAA So. Peru/Bolivia
O: 22APR2024 13:58:23 17.2N 95.1W ML=4.0 EMSC OAXACA, MEXICO
P: 23APR2024 162356 17.0N 95.0W 3.5-5.5 AAAAA Chiapas, Mexico
O: 22APR2024 19:38:04 18.0S 71.5W ML=4.1 EMSC OFF COAST OF TARAPACA, CHILE
P: 27APR2024 162541 18.0S 71.0W 4.0-5.6 BAAAA So. Peru/Bolivia
O: 22APR2024 09:44:22 18.9N 66.3W MD=3.1 EMSC PUERTO RICO REGION
O: 23APR2024 04:03:36 19.4N 65.9W MD=3.6 EMSC PUERTO RICO REGION
O: 23APR2024 02:35:57 18.7N 67.3W MD=3.0 EMSC PUERTO RICO REGION
P: 22APR2024 162374 19.0N 67.0W 3.4-5.1 AAAAA Puerto Rico
O: 22APR2024 15:17:25 18.9N 64.3W MD=3.6 EMSC VIRGIN ISLANDS REGION
P: 23APR2024 162360 18.0N 65.0W 3.0-5.3 AAAAA Leeward Islands
O: 22APR2024 11:13:10 19.5N 70.5W ML=3.3 EMSC DOMINICAN REPUBLIC
O: 23APR2024 00:29:41 19.9N 70.4W ML=3.1 EMSC DOMINICAN REPUBLIC REGION
P: 25APR2024 162378 20.0N 71.0W 3.0-4.8 BAAAA Bahamas/No. Caribbean
O: 22APR2024 19:39:03 24.8N 98.5W ML=3.8 EMSC TAMAULIPAS, MEXICO
P: 12APR2024 162122 26.0N 102.0W 3.0-4.7 CBCAA Northern Mexico
O: 22APR2024 23:36:28 26.2N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
P: 24APR2024 162381 26.0N 110.0W 3.5-5.1 AAAAA Gulf of California
AFRICA AND EUROPE
O: 22APR2024 09:09:38 52.3N 3.9W ML=2.3 EMSC WALES, UNITED KINGDOM
P: 11APR2024 162250 54.0N 2.0W 3.0-4.6 CBAAA United Kingdom
O: 23APR2024 05:26:26 26.9S 26.8E ML=3.2 EMSC SOUTH AFRICA
P: 21APR2024 162554 27.0S 28.0E 3.0-4.6 AAAAA Rep. South Africa
O: 22APR2024 19:26:29 35.7N 28.6E MB=4.4 EMSC EASTERN MEDITERRANEAN SEA
P: 19APR2024 162142 34.0N 27.0E 3.0-4.4 BBAAA Crete
NEIC reported this earthquake of M 4.4 in Greece was felt with intensity up to III in the area(s) of Greece in Lardos.
EMSC reported this earthquake of M 4.8 in the Eastern Mediterranean Sea was felt with intensity up to III in the area(s) of the Eastern Mediterranean Sea in Greece at Rhodes, and in Turkey at Cildir, Sanana, Camdibi, Beldibi, Iskele, Yeni, Emirbeyazit, Goynuk, Guller Pinan, Oba, Cikcilli, Kestel among othrs.
SOUTHWEST PACIFIC
O: 22APR2024 18:43:39 20.8S 178.3W MB=4.7 EMSC FIJI REGION
P: 24APR2024 162559 20.0S 178.0W 4.0-5.4 AAAAA Tonga Islands
O: 22APR2024 08:46:31 23.7S 179.7W MB=4.4 EMSC SOUTH OF FIJI ISLANDS
P: 24APR2024 162559 22.0S 180.0W 4.0-5.9 ABAAA Tonga Islands
OCEAN RIDGES
O: 23APR2024 04:17:43 38.9S 92.2W MB=4.9 EMSC WEST CHILE RISE
P: 24APR2024 162572 41.0S 91.0W 4.0-5.7 ABAAA Chile Rise
O: 22APR2024 17:21:22 58.7S 25.4W MB=4.8 EMSC SOUTH SANDWICH ISLANDS REGION
P: 28APR2024 162581 59.0S 26.0W 4.0-5.7 CAAAA So. Sandwich Islands
ZEALANDIA AND AUSTRALIA REGION
O: 22APR2023 21:57:41 39.1S 176.4E MS=4.7 GEONET Felt with moderate intensity in the area of Taupo, North Island, New Zealand with moderate shaking felt by 1711 people in northern North Island. Nearly 1711 people reported feeling this earthquake with 944 with weak intensity, 686 light, 72 moderate, 6 strong, 0 severe and 1 extreme.
O: 22APR2024 21:57:40 39.1S 176.4E MB=4.3 ANSS BAY VIEW NEW ZEALAND
P: 22APR2024 162573 40.0S 176.0E 3.0-4.4 AAAAA North Island, N.Z.
GEONET reported this earthquake was felt with moderate intensity in the area of Taupo, North Island, New Zealand with moderate shaking felt by 1711 people in northern North Island. Nearly 1711 people reported feeling this earthquake with 944 with weak intensity, 686 light, 72 moderate, 6 strong, 0 severe and 1 extreme.
JAPAN AND KURIL ISLANDS
O: 22APR2024 15:55:53 50.1N 153.7E MB=4.1 EMSC KURIL ISLANDS
P: 22APR2024 162510 51.0N 156.0E 4.0-5.9 AABAA Kamchatka
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 22APR2024 08:13:36 31.5N 115.6W ML=3.3 EMSC BAJA CALIFORNIA, MEXICO
O: 22APR2024 20:26:13 31.5N 115.5W ML=3.6 EMSC BAJA CALIFORNIA, MEXICO
O: 22APR2024 21:57:42 31.7N 116.0W ML=3.7 EMSC BAJA CALIFORNIA, MEXICO
P: 22APR2024 162434 31.9N 116.3W 2.5-4.6 AAAAA So. California
O: 22APR2024 18:04:42 35.4N 118.6W ML=2.1 EMSC CENTRAL CALIFORNIA
P: 21APR2024 162441 35.4N 118.5W 2.5-4.6 AAAAA So. California
O: 22APR2024 15:02:45 35.6N 117.5W ML=3.0 EMSC SOUTHERN CALIFORNIA
P: 21APR2024 162442 35.9N 117.7W 2.5-4.5 AAAAA So. California
O: 22APR2024 08:27:34 37.7N 118.0W ML=2.1 EMSC NEVADA
P: 24APR2024 162402 38.0N 118.8W 2.5-4.6 AAAAA California/Nevada area
P: 25APR2024 162400 37.4N 118.6W 2.5-4.8 BAAAA California/Nevada area
O: 22APR2024 22:51:46 39.5N 119.6W ML=2.0 EMSC NEVADA
P: 18APR2024 162134 39.3N 120.0W 2.5-4.6 BAAAA California/Nevada area
O: 22APR2024 16:45:15 40.3N 124.7W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 25APR2024 162482 40.3N 124.7W 2.5-4.8 BAAAA Off Coast of No. Calif
ALASKA
O: 22APR2024 13:37:27 58.8N 134.5W ML=3.5 EMSC SOUTHEASTERN ALASKA
O: 22APR2024 13:37:29 58.8N 134.5W MB=3.7 ECAN OF JUNEAU, AK
P: 22APR2024 162507 58.3N 133.5W 3.0-4.9 AAAAA British Colombia
O: 22APR2024 09:10:33 62.0N 159.0W ML=4.1 EMSC CENTRAL ALASKA
P: 26APR2024 162525 61.3N 158.5W 3.2-5.1 BAAAA Central Alaska
NEIC reported this earthquake of M 4.1 in Central Alaska was felt with intensity up to IB in the area(s) of Central Alaska in Holy Cross.
O: 23APR2024 04:20:38 62.4N 149.5W ML=3.1 EMSC CENTRAL ALASKA
P: 24APR2024 162526 62.8N 149.1W 3.2-4.9 AAAAA Central Alaska
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
No events of M>=2 were located in the northwestern U.S. or western Canada today.
ROCKY MOUNTAINS REGION
O: 22APR2024 17:35:52 44.4N 116.1W ML=2.7 EMSC SOUTHERN IDAHO
P: 19APR2024 162201 44.5N 116.2W 2.0-4.0 BAAAA Montana/Idaho
NEIC reported this earthquake of M 2.6 in Southern Idaho was felt with intensity up to III in the area(s) of Southern Idaho in Smiths Ferry.
O: 22APR2024 13:16:03 47.6N 113.2W ML=2.0 EMSC WESTERN MONTANA
P: 25APR2024 162471 47.5N 115.8W 2.0-4.1 BABAA Montana/Idaho
EASTERN U.S./CANADA
O: 22APR2024 11:13:49 28.8N 98.2W ML=2.3 EMSC SOUTHERN TEXAS
P: 24APR2024 162387 28.0N 99.0W 3.0-4.5 AAAAA Northern Mexico
O: 22APR2024 08:52:33 37.3N 89.3W MD=2.1 EMSC ILLINOIS
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 AAAAA New Madrid area
P: 25APR2024 162422 37.0N 90.0W 2.0-4.0 BAAAA New Madrid area
O: 22APR2024 00:19:57 43.7N 75.2W MB=1.5 ECAN OF WATERTOWN, NY
P: 23APR2024 162477 44.0N 74.0W 2.0-4.1 AAAAA New York State
O: 22APR2024 00:12:15 41.5N 83.5W MB=2.9 ECAN OF TOLEDO, OH
P: 24APR2024 162485 41.8N 81.4W 2.0-4.2 AABAA Ohio/Lake Erie
O: 21APR2024 21:56:01 49.2N 94.1W MB=1.4 ECAN OF SABASKONG BAY, ON
O: 21APR2024 11:26:40 47.5N 70.1W MB=0.4 ECAN OF LA POCATIèRE, QC
O: 21APR2024 20:02:37 47.5N 70.4W MB=0.8 ECAN OF BAIE-SAINT-PAUL, QC
P: 24APR2024 162467 47.0N 70.0W 2.0-4.1 BAAAA Maine
O: 21APR2024 18:07:41 73.2N 70.3W MB=3.1 ECAN OF POND INLET, NU
O: 20APR2024 02:22:34 74.6N 74.6W MB=2.5 ECAN OF POND INLET, NU
P: 29APR2024 162533 71.0N 75.0W 2.5-4.3 CAAAA Baffin/Davis Strait Canada
O: 21APR2024 17:51:06 42.1N 55.6W MB=3.2 ECAN OF HALIFAX, NS
O: 21APR2024 13:37:40 58.5N 77.1W MB=3.2 ECAN OF INUKJUAK, QC
P: 26APR2024 162521 60.0N 79.0W 2.5-4.0 BBAAA Baffin/Davis Strait Canada
O: 21APR2024 09:06:27 44.8N 68.3W MB=1.2 ECAN OF BANGOR, ME
O: 21APR2024 14:42:40 44.9N 68.3W MB=1.2 ECAN OF BANGOR, ME
O: 21APR2024 02:35:02 44.9N 68.3W MB=2.2 ECAN OF BANGOR, ME
P: 29APR2024 162467 45.0N 68.0W 2.0-4.1 CAAAA Maine
O: 21APR2024 04:56:47 73.0N 86.1W MB=2.1 ECAN OF ARCTIC BAY, NU
O: 21APR2024 04:49:45 65.0N 79.4W MB=2.9 ECAN OF CAPE DORSET, NU
O: 22APR2024 16:14:41 40.7N 74.7W ML=1.5 ANSS GLADSTONE NEW JERSEY
O: 22APR2024 12:17:41 40.7N 74.8W ML=0.7 ANSS CALIFON NEW JERSEY
P: 25APR2024 162474 40.0N 74.0W 2.0-4.2 BAAAA New England
NEIC reported this earthquake of M 1.5 in New Jersey was felt with intensity up to III in the area(s) of New Jersey in Gladstone.
HAWAII
No earthquakes of M>=3 were located in Hawaii.
MODERATELY STRONG QUAKE HITS WESTERN MEXICO WITH RENEWED ECLIPSE PROMOTION
EARTHQUAKE SUMMARY FOR APRIL 21, 2024
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 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.
Forecasts 162091 and 162357 had expected today's activity was likely between
April 17 and 23 within about 100 km of these events in Jalisco. This epicenter is at the third node (120 degrees) fro the M 7.0 on January 22, 2024 and at 104 degrees from the M 6.5 in New Britain of April 14, 2024 and 102 degrees from the M 6.9 in the Mariana Islands of April 5, 2024 and was likely promoted by energy from those sources.
O: 21APR2024 16:34:01 18.1N 105.8W mb=4.5 EMSC OFF COAST OF JALISCO, MEXICO
O: 21APR2024 16:41:06 18.2N 105.7W mb=4.6 EMSC OFF COAST OF JALISCO, MEXICO
O: 22APR2024 05:31:06 18.2N 105.9W ML=4.0 EMSC OFF COAST OF JALISCO, MEXICO
O: 22APR2024 06:01:49 18.2N 105.9W ML=4.1 EMSC OFF COAST OF JALISCO, MEXICO
O: 21APR2024 19:26:40 18.3N 105.8W ML=4.1 EMSC OFF COAST OF JALISCO, MEXICO
O: 21APR2024 19:05:14 18.2N 105.6W mw=5.4 ANSS Emiliano Zapata Mexico
O: 21APR2024 19:05:15 18.4N 105.7W MW=5.4 EMSC OFF COAST OF JALISCO, MEXICO
P: 17APR2024 162092 19.0N 106.0W 3.5-5.5 BAAAA Coast of Jalisco, Mexico
P: 23APR2024 162357 19.0N 107.0W 3.5-5.5 AABAA Coast of Jalisco, Mexico
In addition to the M 5.4 in Michoacan, Mexico today light earthquakes along the path of the total eclipse of the sun of April 8 also occurred in Southern Texas (M 2.5, 1.6, 1.6); Southeastern Missouri (M 2.4) and Ohio (M 2.3).
NEIC reported the earthquake of M 2.5 and 1.6 in Texas were felt with intensity up to III in the area(s) of Christine, Texas. The total eclipse of the sun was visible for four minutes, 11 seconds at this epicenter on April 8 at 18:58 UT. It is likely that this earthquake was promoted by tidal stresses with this eclipse and the coming full moon of April 23. A series of minor earthquake has been occurring near this site including an M 3.2 yesterday in the past several days.
Forecast 162387 had expected this activity in southern Texas was likely around April 24, 2024.
O: 21APR2024 17:33:53 28.7N 99.0W ML=2.5 EMSC SOUTHERN TEXAS
O: 22APR2024 04:44:41 28.8N 98.2W ml=1.6 ANSS E of Christine Texas
O: 22APR2024 03:35:17 29.1N 97.9W ml=1.6 ANSS SSE of Stockdale Texas
O: 21APR2024 17:33:53 28.7N 99.0W ml=2.4 ANSS SSE of Pearsall Texas
P: 24APR2024 162387 28.0N 99.0W 3.0-4.5 AAAAA Northern Mexico
NEIC reported the earthquake of M 2.4 in Missouri was felt with intensity up to III in the area(s) of Matthews, Missouri. The total eclipse of the sun was visible for four minutes, 11 seconds at this epicenter on April 8 at 18:58 UT. It is likely that this earthquake was promoted by tidal stresses with this eclipse and the coming full moon of April 23.
Forecast 162422 had expected today's M 2.4 in Missouri was likely within about 25 km of this epicenter around April 21. This epicenter is located at 102 degrees of the M 7.0 in Xinjiang, China of January 22, 2024 and may have been promoted by energy from that source.
O: 21APR2024 15:33:58 36.8N 89.5W MD=2.4 EMSC SOUTHEASTERN MISSOURI
O: 21APR2024 15:33:58 36.8N 89.5W MD=2.4 ANSS ESE OF MATTHEWS MISSOURI
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 AAAAA New Madrid area
NEIC reported the earthquake of M 2.3 in Ohio was felt with intensity up to IV in the area(s) of Ohio at Walbridge. The total eclipse of the sun was visible for four minutes at this epicenter on April 8 at 19:10 UT. It is likely that this earthquake was promoted by tidal stresses with this eclipse and the coming full moon of April 23.
Forecast 162485 had expected today's event in Ohio was likely around April 24.
This epicenter is at the third node (120 degrees) from the M 6.5 in New Britain
of April 14, 2024 and may have been promoted by energy from that source.
O: 22APR2024 00:12:15 41.6N 83.5W ML=2.3 EMSC OHIO
O: 22APR2024 00:12:15 41.6N 83.5W mb=2.3 ANSS SSE of Walbridge Ohio
P: 24APR2024 162485 41.8N 81.4W 2.0-4.2 AABAA Ohio/Lake Erie
As a prelude to the full moon of April 23, seismicity continued to heat up in Taiwan. NEIC reported an earthquake of M 4.7 in Taiwan today was felt with intensity up to III in the area(s) of Taiwan in Hualien City. EMSC reported gentle to strong shaking in tTaiwan at Jiaoxi Township, New Taipei City, and the Districts of Da'an, Tamsui. In the previous summary it was noted as:
"An M 5.1 also occurred as an aftershock to the M 7.4 in Taiwan of April 2, 2024. NEIC reported this earthquake of M 5.1 in Taiwan was felt with intensity up to IV in the area(s) of Taiwan in Hualien City. EMSC reported strong shaking in Taiwan in the Qingshui and Nangang Districts and in Taipei City. This is the strongest aftershock in Taiwan of that event since an M 5.2 on April 6, 2024
and the second strongest since immediate aftershocks of M 5.5 and 5.2 on April 3, 2024. Today's activity occurred near local solar noon when tidal stresses are high. This suggests that tidal promotion with the upcoming full moon may be occurring at this time and that further moderate to strong earthquakes may follow in the next several days in Taiwan." (April 21, 2024)
Forecast 162126 had expected enhanced seismicity in Taiwan was likely within about 100 km around April 20, 2024.
O: 21APR2024 18:53:22 23.9N 121.7E Mw=4.3 EMSC TAIWAN
O: 21APR2024 09:54:19 24.0N 121.7E ML=4.3 EMSC TAIWAN
O: 21APR2024 16:35:52 24.2N 121.7E Mw=4.7 EMSC TAIWAN
O: 22APR2024 00:01:34 24.3N 121.8E ML=4.1 EMSC TAIWAN
O: 22APR2024 00:03:34 24.3N 121.8E ML=4.3 EMSC TAIWAN
P: 23APR2024 162393 24.0N 121.0E 4.0-5.4 AAAAA Taiwan
A series of earthquake also occurred today in Switzerland. EMSC reported this earthquake of M 3.8 in Switzerland was felt with intensity up to III in the area(s) of Switzerland in Concise, Corcelles-pres-Concise, Champagne, Cortaillod, Estavayer, without damage. This is the strongest earthquake in Switzerland since an M 3.8 on May 29, 2023 on May 29, 2023 and an M 4.4 on March 22, 2023. When an M 4.1 hit Switzerland on December 24, 2021 this summary noted:
"An unusual earthquake of M 4.1 shook areas of France, Switzerland and Germany several minutes after midnight on Christmas Day (today). NEIC reported this earthquake was felt with maximum intensity IV in Switzerland at Le Locle, Neuenburg and III in Bern; in France with II-III in Herimoncourt, Montbouton, Courcelles-les-Montbellard, Allenjole and Chatenois-les-Forges, Franche-Comte and in Heimbach Westfalen, Germany. Many citizens in the area were at midnight Christmas Eve services when the quake shook the area. Switzerland has numerous light earthquake but the last moderate sized earthquake of M>=4.1 within about 100 km of today's epicenter was recorded on October 24, 2016 with M 4.4 about 100 km southeast of today's epicenter and prior to that as an M 4.4 on November 12, 2004. These were aftershocks of an M 5.5 on February 23, 2004, the strongest regional event in the past 30 years." (December 24, 2021)
This may be related to the coming full moon for which maximum tidal stresses occur near Switzerland as noted in previous issues of this summary:
"The full moon will arrive on April 23, 2024 at 23:49 UT. Longitudes which are at local solar midnight at this time are located at about 5 East while those at local solar noon are near 175 West. In the east these include most of western Europe and Iceland while in the west areas of the western Aleutians, Alaska, Hawaii, Tonga/Fiji/Kermadec Islands, New Zealand to the Balleny Islands and portions of the Pacific-Antarctic Ridge are included. These are the most likely areas to see significant tidal triggering with this full moon. Other areas may also see tidal promotion in the next week especially at times of large solar flares and near local solar midnight and solar noon. The likelihood of a strong associated earthquake with this full moon are moderate to high." (April 18-22, 2024)
Forecast 162457 had expected regional seismic activation in this region was likely around April 25. This epicenter is at 104 degrees from the Mariana Islands where an M 6.9 occurred on April 5, 2024 and may the M 7.6 in Mindanao of December 2, 2023 and have been promoted by energy from those sources.
O: 22APR2024 01:35:55 46.9N 6.7E ML=3.8 EMSC SWITZERLAND
O: 22APR2024 01:35:55 46.8N 6.7E ML=3.8 EMSC SWITZERLAND
P: 25APR2024 162457 45.0N 8.0E 3.0-5.3 BBAAA Austria
The strongest earthquake in the U.S. or Canada today was an M 4.0 in the Unimak Island region of Alaska. It was not reported felt in this remote area. The last earthquakes in the Unimak Island area of equal or larger magnitude than M 4.0 occurred on April 10, 2024 with M 4.9 and as an M 4.1 on March 22, 2024.
Forecast 162520 had expected today's event within about 100 km of today's epicenter was likely around April 24.
O: 21APR2024 07:23:48 55.3N 164.9W ML=4.0 EMSC UNIMAK ISLAND REGION, ALASKA
P: 24APR2024 162520 54.2N 165.0W 3.5-5.1 BBAAA Unimak Islands, Aleutians
Enhanced seismicity also continued near the International Date Line (IDL) today.
The seismic forecast with the full moon of April 23 had expected this longitude zone to be active (see above tidal forecast). The strongest earthquake in this zone today was an M 5.1 in the Kermadec Islands where enhanced seismicity is expected with the full moon with the possibility of a moderate to strong earthquake at this time.
Forecast 162570 had expected today's Kermadec Islands quake was likely around April 26. Like the M 5.4 in Jalisco, Mexico today, this event is located at the third node (120 degrees) from the M 7.2 in Xinjiang, China of January 22, 2024 and at 104 degrees from the M 6.5 in New Britain of April 14, 2024 and may have been promoted by energy from those sources.
O: 21APR2024 11:59:11 31.9S 178.0W MB=5.1 EMSC KERMADEC ISLANDS REGION
P: 26APR2024 162570 31.0S 177.0W 4.0-5.4 BAAAA So. Kermadec 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: 21APR2024 18:53:22 23.9N 121.7E Mw=4.3 EMSC TAIWAN
O: 21APR2024 09:54:19 24.0N 121.7E ML=4.3 EMSC TAIWAN
O: 21APR2024 16:35:52 24.2N 121.7E Mw=4.7 EMSC TAIWAN
O: 22APR2024 00:01:34 24.3N 121.8E ML=4.1 EMSC TAIWAN
O: 22APR2024 00:03:34 24.3N 121.8E ML=4.3 EMSC TAIWAN
P: 23APR2024 162393 24.0N 121.0E 4.0-5.4 AAAAA Taiwan
O: 22APR2024 01:11:57 27.7N 56.1E MB=4.0 EMSC SOUTHERN IRAN
P: 19APR2024 162124 28.0N 55.0E 3.5-4.9 BAAAA So. Iran/Persian Gulf
O: 21APR2024 07:20:11 39.7N 74.2E MB=4.3 EMSC SOUTHERN XINJIANG, CHINA
P: 20APR2024 162198 41.0N 73.0E 4.0-5.4 ABAAA Kirgizstan/Xinjiang
O: 21APR2024 06:53:31 55.0N 160.9E MB=4.3 EMSC NEAR EAST COAST OF KAMCHATKA
P: 28APR2024 162508 55.0N 160.0E 4.0-5.4 CAAAA E. of Kamchatka
INDONESIA AND PHILIPPINES
O: 22APR2024 03:03:11 1.2N 127.0E MB=4.8 EMSC HALMAHERA, INDONESIA
P: 17APR2024 162055 2.0N 128.0E 4.0-5.4 BAAAA Halmahera
O: 22APR2024 06:06:06 2.1S 100.6E MB=4.7 EMSC KEP. MENTAWAI REGION, INDONESI
P: 22APR2024 162344 2.0S 101.0E 4.0-5.5 AAAAA So. of Sumatera
O: 21APR2024 07:42:20 5.8S 129.1E ML=4.0 EMSC BANDA SEA
O: 21APR2024 13:39:38 6.1S 130.0E ML=4.2 EMSC BANDA SEA
O: 22APR2024 05:34:13 6.5S 130.8E MB=4.9 EMSC BANDA SEA
P: 25APR2024 162351 5.0S 131.0E 4.0-5.4 BBAAA West Irian, PNG
BMG reported this earthquake of M 5.0 in Tanimbar, Indonesia was felt with intensity up to III in the area(s) of Tanimbar, Indonesia in Wuar, Taminbar, Kormomolin, Molu Maru and with intensity I in Kab. Maluku, Buru, Seram, Ambon, Maybrat, Kaimana, Teluk Wondama, Bintumi Raja Ampat among othrs.
NEIC reported this earthquake of M 4.8 in the Molucca Sea, Indonesia was felt with intensity up to III in the area(s) of the Molucca Sea, Indonesia in Ternate.
O: 22APR2024 00:48:02 8.1S 109.1E MB=4.5 EMSC JAVA, INDONESIA
P: 24APR2024 162343 9.0S 111.0E 4.0-5.6 AABAA So. of Java
P: 28APR2024 162343 9.0S 110.0E 4.0-5.9 CAAAA So. of Java
NEIC reported this earthquake of M 4.5 South of Java was felt with intensity up to III in the area(s) of Java in Cilacap, Indonesia.
EMSC reported a short shake in Pangandaran, Indonesia.
CENTRAL AND SOUTH AMERICA
O: 21APR2024 16:34:01 18.1N 105.8W mb=4.5 EMSC OFF COAST OF JALISCO, MEXICO
O: 21APR2024 16:41:06 18.2N 105.7W mb=4.6 EMSC OFF COAST OF JALISCO, MEXICO
O: 22APR2024 05:31:06 18.2N 105.9W ML=4.0 EMSC OFF COAST OF JALISCO, MEXICO
O: 22APR2024 06:01:49 18.2N 105.9W ML=4.1 EMSC OFF COAST OF JALISCO, MEXICO
O: 21APR2024 19:26:40 18.3N 105.8W ML=4.1 EMSC OFF COAST OF JALISCO, MEXICO
O: 21APR2024 19:05:14 18.2N 105.6W mw=5.4 ANSS Emiliano Zapata Mexico
O: 21APR2024 19:05:15 18.4N 105.7W MW=5.4 EMSC OFF COAST OF JALISCO, MEXICO
P: 17APR2024 162092 19.0N 106.0W 3.5-5.5 BAAAA Coast of Jalisco, Mexico
P: 23APR2024 162357 19.0N 107.0W 3.5-5.5 AABAA Coast of Jalisco, Mexico
O: 21APR2024 23:22:33 3.4S 81.9W MB=4.6 EMSC NEAR COAST OF NORTHERN PERU
O: 21APR2024 14:18:10 5.2S 81.0W ML=4.1 EMSC NEAR COAST OF NORTHERN PERU
P: 30APR2024 162331 4.0S 80.0W 4.0-5.6 CBAAA Ecuador
O: 21APR2024 18:58:36 8.7S 75.7W ML=4.1 EMSC CENTRAL PERU
P: 21APR2024 162537 10.0S 75.0W 3.5-5.4 AAAAA Brazil
P: 26APR2024 162328 9.0S 75.0W 3.5-5.4 BAAAA Brazil
O: 22APR2024 02:12:43 14.0N 91.5W MB=4.1 EMSC OFFSHORE GUATEMALA
P: 24APR2024 162359 15.0N 91.0W 3.5-5.1 AAAAA Guatemala
O: 21APR2024 16:51:26 15.2N 93.2W MB=4.9 EMSC OFFSHORE CHIAPAS, MEXICO
P: 21APR2024 162355 14.0N 93.0W 3.5-5.3 ABAAA Chiapas, Mexico
O: 21APR2024 22:15:58 15.2S 73.0W MB=4.4 EMSC SOUTHERN PERU
P: 21APR2024 162541 17.0S 73.0W 4.0-5.8 ABAAA So. Peru/Bolivia
O: 21APR2024 23:12:01 16.4N 98.3W ML=4.1 EMSC OAXACA, MEXICO
P: 25APR2024 162372 17.0N 98.0W 3.5-5.1 BAAAA Oaxaca, Mexico
O: 21APR2024 21:39:23 17.5N 94.5W ML=4.0 EMSC VERACRUZ, MEXICO
P: 23APR2024 162356 17.0N 95.0W 3.5-5.5 AAAAA Chiapas, Mexico
O: 21APR2024 14:53:29 17.8N 72.1W ML=3.2 EMSC HAITI REGION
P: 25APR2024 162378 20.0N 71.0W 3.0-4.8 BCAAA Bahamas/No. Caribbean
O: 22APR2024 05:46:36 18.6N 66.9W MD=3.0 EMSC PUERTO RICO REGION
P: 22APR2024 162374 19.0N 67.0W 3.4-5.1 AAAAA Puerto Rico
O: 22APR2024 03:00:56 20.7S 69.1W MB=4.4 EMSC TARAPACA, CHILE
P: 16APR2024 162289 20.0S 70.0W 4.0-5.4 CAAAA So. Peru/Bolivia
O: 21APR2024 09:44:47 20.9N 99.5W ML=3.6 EMSC QUERETARO, MEXICO
P: 23APR2024 162372 17.0N 100.0W 3.5-5.2 ACAAA Oaxaca, Mexico
O: 21APR2024 23:00:47 25.0N 109.4W ML=3.6 EMSC GULF OF CALIFORNIA
P: 24APR2024 162381 26.0N 110.0W 3.5-5.1 BAAAA Gulf of California
O: 22APR2024 05:29:57 32.4S 71.7W ML=4.2 EMSC OFFSHORE VALPARAISO, CHILE
P: 24APR2024 162564 33.0S 69.0W 4.0-5.8 AABAA Central Chile
EMSC reported this earthquake of M 4.2 in Valparaiso, Chile was felt with intensity up to III in the area(s) of Valparaiso, Chile in Vina del Mar, Cerro Navia.
AFRICA AND EUROPE
O: 22APR2024 00:11:07 38.3N 16.1E ML=3.5 EMSC SOUTHERN ITALY
P: 24APR2024 162419 39.0N 14.0E 3.0-4.9 AABAA Mediterranean/Sicily
O: 21APR2024 12:03:34 40.4N 36.2E MB=4.5 EMSC CENTRAL TURKEY
P: 23APR2024 162479 41.0N 36.0E 3.5-5.3 AAAAA No. Turkey/Black Sea
EMSC reported this earthquake of M 4.6 in Central Turkey was felt with intensity up to III in the area(s) of Central Turkey in Altiyuzevler, Yarahmet, Yesilirmak, Samlar, Yesilyurt, Kadisehri, Emek, Kurtulus, Tepecik, Adalet, Cumhuriyet, Atakent Alanli, Yeni, Sogutozu.
O: 22APR2024 01:35:55 46.9N 6.7E ML=3.8 EMSC SWITZERLAND
O: 22APR2024 01:35:55 46.8N 6.7E ML=3.8 EMSC SWITZERLAND
P: 25APR2024 162457 45.0N 8.0E 3.0-5.3 BBAAA Austria
O: 22APR2024 04:53:47 63.8N 22.7W ML=3.1 EMSC ICELAND REGION
P: 24APR2024 162528 63.0N 23.0W 3.0-4.6 AAAAA Iceland area
O: 21APR2024 06:53:35 64.7N 17.4W ML=3.0 EMSC ICELAND
P: 14APR2024 162259 65.0N 17.0W 3.0-4.6 CAAAA Iceland area
SOUTHWEST PACIFIC
O: 21APR2024 14:37:45 13.1S 166.5E MB=4.6 EMSC VANUATU
P: 22APR2024 162547 12.0S 167.0E 4.0-5.8 ABAAA Vanuatu Islands
NEIC reported this earthquake of M 4.6 in Vanuatu was felt with intensity up to III in the area(s) of Vanuatu in Sola.
O: 21APR2024 17:52:37 23.7S 179.7W MB=4.5 EMSC SOUTH OF FIJI ISLANDS
P: 24APR2024 162559 22.0S 180.0W 4.0-5.9 BBAAA 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: 21APR2024 11:59:11 31.9S 178.0W MB=5.1 EMSC KERMADEC ISLANDS REGION
P: 26APR2024 162570 31.0S 177.0W 4.0-5.4 BAAAA So. Kermadec Islands
O: 21APR2024 08:12:56 48.2S 165.7E ML=3.8 EMSC OFF W. COAST OF S. ISLAND, N.Z
P: 12APR2024 162309 47.0S 165.0E 3.0-5.1 CBAAA Southern S. Isl. N.Z.
O: 21APR2024 12:07:01 42.9S 147.2E ML=1.8 EMSC TASMANIA, AUSTRALIA REGION
EMSC reported this earthquake of M 1.8 in Tasmania, Australia was felt with intensity up to III in the area(s) of Tasmania, Australia at Grove.
Local press also reported this unusual earthquake in Tasmania was felt in the
epicentral region with an earthquake noise and unusual vibration.
today.
JAPAN AND KURIL ISLANDS
O: 22APR2024 04:19:45 24.2N 125.1E MB=4.6 EMSC SOUTHWESTERN RYUKYU ISL., JAPA
P: 30APR2024 162393 24.0N 125.0E 4.0-5.6 CAAAA Taiwan
O: 21APR2024 12:28:12 34.4N 137.0E MB=4.5 EMSC NEAR S. COAST OF HONSHU,
P: 19APR2024 162155 35.0N 136.0E 3.5-5.0 AAAAA No. Honshu, Japan
O: 22APR2024 06:40:45 44.5N 140.4E MB=4.8 EMSC EASTERN SEA OF JAPAN
P: 29APR2024 162462 44.0N 142.0E 3.5-5.4 CAAAA Hokkaido, Japan
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 21APR2024 08:58:43 31.3N 115.3W ML=3.4 EMSC BAJA CALIFORNIA, MEXICO
P: 22APR2024 162434 31.9N 116.3W 2.5-4.6 AAAAA So. California
O: 21APR2024 23:54:57 33.5N 116.4W ML=2.1 EMSC SOUTHERN CALIFORNIA
O: 21APR2024 09:29:41 33.3N 116.4W ML=2.1 EMSC SOUTHERN CALIFORNIA
P: 24APR2024 162437 33.4N 116.7W 2.5-4.4 BAAAA So. California
O: 21APR2024 07:56:34 35.1N 118.9W ML=2.4 EMSC CENTRAL CALIFORNIA
O: 21APR2024 19:53:44 35.5N 118.5W ML=2.0 EMSC CENTRAL CALIFORNIA
P: 23APR2024 162441 35.6N 118.4W 2.5-4.7 AAAAA So. California
O: 21APR2024 18:39:18 36.0N 119.7W MD=2.5 EMSC CENTRAL CALIFORNIA
P: 23APR2024 162403 36.1N 120.1W 2.5-4.7 AAAAA Central California
O: 21APR2024 19:39:15 38.8N 122.8W MD=2.7 EMSC NORTHERN CALIFORNIA
O: 22APR2024 04:30:50 38.8N 122.8W ML=3.0 EMSC NORTHERN CALIFORNIA
P: 24APR2024 162407 38.9N 122.8W 2.5-4.8 BAAAA Central California
NEIC reported these earthquakes of M 3.3 and M 2.7 in Northern California were felt with intensity up to V in the area(s) of Northern California in the Geysers.
O: 21APR2024 07:42:57 39.8N 120.7W MD=2.3 EMSC NORTHERN CALIFORNIA
P: 21APR2024 162480 40.0N 120.9W 2.5-4.7 AAAAA Northern California
NEIC reported this earthquake of M 2.0 in Northern California was felt with intensity up to III in the area(s) of Northern California at Redway.
O: 21APR2024 18:42:14 41.7N 127.1W ML=2.9 EMSC OFF COAST OF NORTHERN CALIFORN
P: 22APR2024 162484 42.1N 126.9W 3.0-4.8 AAAAA Off Coast of Oregon
O: 21APR2024 16:21:03 41.9N 119.6W MD=2.0 EMSC NEVADA
O: 21APR2024 14:33:11 41.9N 119.6W ML=2.2 EMSC NEVADA
P: 26APR2024 162486 42.2N 120.3W 2.0-4.2 BAAAA Oregon state, U.S.
ALASKA
O: 21APR2024 07:23:48 55.3N 164.9W ML=4.0 EMSC UNIMAK ISLAND REGION, ALASKA
P: 24APR2024 162520 54.2N 165.0W 3.5-5.1 BBAAA Unimak Islands, Aleutians
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
No events of M>=2 were located in the northwestern U.S. or western Canada today.
ROCKY MOUNTAINS REGION
O: 21APR2024 21:36:06 31.6N 104.5W ML=2.2 EMSC WESTERN TEXAS
O: 21APR2024 20:30:50 31.6N 104.0W ML=2.1 EMSC WESTERN TEXAS
P: 24APR2024 162433 31.5N 104.6W 2.0-4.3 BAAAA SW U.S.A
O: 21APR2024 16:16:58 37.8N 112.9W ML=2.8 EMSC UTAH
P: 25APR2024 162401 37.3N 114.9W 2.5-4.4 BABAA Nevada area
NEIC reported this earthquake of M 2.7 in Utah was felt with intensity up to IV in the area(s) of Utah at Summit.
EASTERN U.S./CANADA
O: 21APR2024 17:33:53 28.7N 99.0W ML=2.5 EMSC SOUTHERN TEXAS
O: 22APR2024 04:44:41 28.8N 98.2W ml=1.6 ANSS E of Christine Texas
O: 22APR2024 03:35:17 29.1N 97.9W ml=1.6 ANSS SSE of Stockdale Texas
O: 21APR2024 17:33:53 28.7N 99.0W ml=2.4 ANSS SSE of Pearsall Texas
P: 24APR2024 162387 28.0N 99.0W 3.0-4.5 AAAAA Northern Mexico
O: 21APR2024 10:29:57 34.7N 85.1W MD=2.1 EMSC GEORGIA, USA
O: 21APR2024 10:29:57 34.7N 85.1W md=2.1 ANSS SW of Dalton Georgia
P: 27APR2024 162447 34.0N 85.0W 2.0-4.4 CAAAA Southeast U.S.
O: 21APR2024 14:16:00 36.4N 96.9W ML=2.2 EMSC OKLAHOMA
P: 24APR2024 162449 36.0N 96.0W 2.0-4.1 BAAAA Southern Plains
NEIC reported this earthquake of M 2.2 in Oklahoma was felt with intensity up to III in the area(s) of Oklahoma in Pawnee.
O: 21APR2024 15:33:58 36.8N 89.5W MD=2.4 EMSC SOUTHEASTERN MISSOURI
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 AAAAA New Madrid area
O: 22APR2024 00:12:15 41.6N 83.5W ML=2.3 EMSC OHIO
O: 22APR2024 00:12:15 41.6N 83.5W mb=2.3 ANSS SSE of Walbridge Ohio
P: 24APR2024 162485 41.8N 81.4W 2.0-4.2 AABAA Ohio/Lake Erie
O: 21APR2024 15:33:58 36.8N 89.5W MD=2.4 ANSS ESE OF MATTHEWS MISSOURI
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 AAAAA New Madrid area
O: 21APR2024 17:13:03 40.7N 74.7W ml=1.3 ANSS Gladstone New Jersey
O: 21APR2024 12:23:08 40.7N 74.8W ml=0.5 ANSS Califon New Jersey
O: 21APR2024 07:52:04 40.7N 74.8W ML=0.2 ANSS CALIFON NEW JERSEY
P: 25APR2024 162474 40.0N 74.0W 2.0-4.2 BAAAA New England
NEIC reported this earthquake of M 1.3 in New Jersey was felt with intensity up to III in the area(s) of New Jersey in Gladstone.
HAWAII
No earthquakes of M>=3 were located in Hawaii.
MODERATE QUAKE IN ICELAND
EARTHQUAKE SUMMARY FOR APRIL 20, 2024
It was a relatively quiet day in global seismicity - even scattered minor
quakes related to the solar eclipse of April 8 ceased for the most part.
The strongest earthquakes in the world today were an M 4.9 in Northern Algeria and an M 5.3 in the area of Iceland. The event in Iceland was not associated with the current eruption near Reykjavik and was not reported felt in this remote area. These two events occurred near the longitude of maximum tidal stress with the upcoming full moon and may have been promoted by strong tidal stresses. The seismic forecast associated with this full moon as noted in this summary also emphasizes the regions of the Aleutians and the Tonga-Fiji-New Zealand arc as areas where enhanced seismicity is likely a this time as:
"The full moon will arrive on April 23, 2024 at 23:49 UT. Longitudes which are at local solar midnight at this time are located at about 5 East while those at local solar noon are near 175 West. In the east these include most of western Europe and Iceland while in the west areas of the western Aleutians, Alaska, Hawaii, Tonga/Fiji/Kermadec Islands, New Zealand to the Balleny Islands and portions of the Pacific-Antarctic Ridge are included. These are the most likely areas to see significant tidal triggering with this full moon. Other areas may also see tidal promotion in the next week especially at times of large solar flares and near local solar midnight and solar noon. The likelihood of a strong associated earthquake with this full moon are moderate to high." (April 18-20, 2024)
The earthquake of M 5.3 in northeastern Iceland is the largest in that area within about 150 km since a series of moderately large events occurred near this epicenter in August and September, 2014 - a volcanic series which included events of M 5.6 and 5.7 on August 26 and 27, 2014. At the time this summary noted:
"The earthquake of M 5.7 in Iceland is the strongest recorded in that area since an M 5.8 on September 16, 2002, the only other event of this size in Iceland in the past 25 years. It is part of the sub-glacial Bardarbunga volcanic eruption in the central portion of that island. ...
The new moon arrived today at 1413 UT. ... Half a day later within about 15 minutes of local solar midnight, the second strongest earthquake of the day occurred - an M 5.4-5.7 in the volcanic eruption in Iceland. These two events appear to have a strong element of tidal triggering in their timing. The other factor most apparent in today's seismicity was triggering by solar flares." (August 26, 2014)
Forecast 162259 had expected this epicenter would be active within about 25 km in mid-April. This earthquake is located at the third node (120 degrees) from the M 6.5 in New Britain of April 14, 2024 and at 102 degrees from the M 7.4 in Mindanao, Philippines of December 2, 2023 and may have been promoted by energy from those sources.
O: 21APR2024 06:37:22 64.8N 17.1W MB=5.3 EMSC ICELAND
P: 14APR2024 162259 65.0N 17.0W 3.0-4.6 AAAAA Iceland area
The M 4.9 in Northern Algeria was felt with moderate intensity in the epicentral area of Algeria. EMSC reported this earthquake of M 4.9 in Algeria was felt with intensity up to VI in the area(s) of Algeria at Ighram, Aghbalou, Chorfa, Ain el Hammam, Saharidj, Ait Toudert, Tizi Ouzou, Bouira, Magra, Alger Centre, Ramdane Djamel. It is the strongest earthquake within about 200 km of this epicenter since an M 4.9 on November 12, 2022. A strong earthquake about 250 km northeast of today's epicenter Algeria occurred on March 18, 2021. At the time this summary noted:
"The Algerian authorities indicated that some people panicked and fled into the streets during the quake but there was no major damages or deaths reported. It was felt as far as Algiers." (March 18, 2021)
Today's event occurred near local solar noon and may have been promoted by strong tidal stresses.
Forecasts 162185 and 162453 had expected today's event in Algeria was likely in mid-April within about 50 km of today's epicenter.
O: 20APR2024 12:44:15 35.4N 4.5E MB=4.9 EMSC NORTHERN ALGERIA
P: 11APR2024 162185 37.0N 5.0E 3.0-5.1 CBAAA Western Mediterranean
P: 22APR2024 162453 35.0N 4.0E 3.0-5.1 AAAAA Western Mediterranean
An M 5.1 also occurred as an aftershock to the M 7.4 in Taiwan of April 2, 2024.
NEIC reported this earthquake of M 5.1 in Taiwan was felt with intensity up to IV in the area(s) of Taiwan in Hualien City. EMSC reported strong shaking in Taiwan in the Qingshui and Nangang Districts and in Taipei City. This is the strongest aftershock in Taiwan of that event since an M 5.2 on April 6, 2024
and the second strongest since immediate aftershocks of M 5.5 and 5.2 on April 3, 2024. Today's activity occurred near local solar noon when tidal stresses are high. This suggests that tidal promotion with the upcoming full moon may be occurring at this time and that further moderate to strong earthquakes may follow in the next several days in Taiwan.
Forecast 162126 had expected enhanced seismicity in Taiwan was likely
within about 100 km around April 20, 2024.
O: 21APR2024 03:07:15 24.1N 121.8E mb=4.5 EMSC TAIWAN
O: 21APR2024 02:40:53 23.5N 121.6E MW=5.1 EMSC TAIWAN
P: 20APR2024 162126 23.0N 121.0E 4.0-5.4 AAAAA Taiwan
In some ways this lull in seismicity recalls (loosely) the words of an ancient character:
"At last, I am restored to my former self - bloated and diabetic"
The current seismic conditions, however, are unlikely to last long as the upcoming full moon of April 23 finishes up the tidal stress triggering job begun on April 8. Together with effects related to the current geomagnetic storms this could bring interesting seismicity in the next 3-4 days.
The only event of interest along the solar eclipse path of April 8 today occurred at the epicenter of greatest eclipse in the world as an M 4.0 in Northern Mexico. The greatest eclipse occurred northwest of this at 18:19 UT on April 8, 2024. Today's event of M 4.0 is the strongest recorded within about 200 km of this epicenter since an M 4.2 on June 5, 2023 and an M 5.0 on May 16, 2023. At the time this summary noted:
"It was a quiet day in global seismicity. The strongest earthquakes of the day was an M 5.0 and aftershocks in Central Mexico ...
The M 5.0 in San Luis Potosi, Mexico occurred within minutes of local solar noon and may have been triggered by high tidal stresses which maximize near this hour. It is the strongest earthquake within about 200 km of this epicenter in more than 35 years." (May 16, 2023)
NEIC reported this earthquake of M 5.0 in San Luis Potosi, Mexico was felt with intensity II-III in the area(s) of Mexico in Tlalnepantla.
Forecast 162099 had expected regional seismic enhancement in this area was likely around April 16, 2024. This event is at 101 degrees from the M 7.5 in western Honshu, Japan of January 1, 2024 and may have been promoted by energy from that source.
O: 20APR2024 13:30:58 22.0N 99.4W ML=4.0 EMSC SAN LUIS POTOSI, MEXICO
P: 16APR2024 162099 19.0N 101.0W 3.5-5.3 AAAAA Michoacan, Mexico
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: 21APR2024 03:07:15 24.1N 121.8E mb=4.5 EMSC TAIWAN
O: 21APR2024 02:40:53 23.5N 121.6E MW=5.1 EMSC TAIWAN
P: 20APR2024 162126 23.0N 121.0E 4.0-5.4 AAAAA Taiwan
O: 20APR2024 18:01:56 38.5N 45.2E MB=4.5 EMSC NORTHWESTERN IRAN
P: 16APR2024 162182 38.0N 43.0E 3.5-4.9 BABAA Turkey
EMSC reported this earthquake of M 4.6 in Iran was felt with intensity up to III in the area(s) of Iran at Khowy, Dzhul'fa, Tabriz and in Azerbaijan at Nakhcivan, Naxcivan.
O: 21APR2024 03:47:30 38.8N 74.9E MB=4.1 EMSC SOUTHERN XINJIANG, CHINA
P: 17APR2024 162158 39.0N 77.0E 3.8-5.2 BABAA Northern India
P: 22APR2024 162417 39.0N 71.0E 3.8-5.4 AACAA Hindu Kush/Pakistan
O: 20APR2024 13:54:12 55.0N 163.1E MB=3.7 EMSC OFF EAST COAST OF KAMCHATKA
P: 24APR2024 162511 55.0N 163.0E 4.0-5.9 BAAAA Komandorsky Isl
INDONESIA AND PHILIPPINES
O: 20APR2024 21:30:47 6.4S 128.4E MB=4.6 EMSC BANDA SEA
P: 20APR2024 162086 5.0S 131.0E 4.0-5.4 ABCAA West Irian, PNG
CENTRAL AND SOUTH AMERICA
O: 20APR2024 14:47:36 9.0S 76.0W ML=4.0 EMSC CENTRAL PERU
P: 20APR2024 162063 9.0S 75.0W 3.5-5.4 AAAAA Brazil
P: 21APR2024 162537 10.0S 75.0W 3.5-5.4 AAAAA Brazil
O: 20APR2024 09:38:52 11.0N 88.0W ML=4.2 EMSC OFF COAST OF CENTRAL AMERICA
O: 21APR2024 00:01:26 12.2N 87.0W ML=4.3 EMSC NICARAGUA
P: 18APR2024 162102 12.0N 88.0W 3.5-5.5 BAAAA Nicaragua
NEIC reported this earthquake of M 4.3 in Nicaragua was felt with intensity up to III in the area(s) of Nicaragua in El Crucero.
EMSC reported light shaking in Nicaragua at Nagarote, Ciudad Sandino.
O: 20APR2024 15:07:52 15.0N 97.4W ML=4.1 EMSC OFF COAST OF OAXACA, MEXICO
P: 17APR2024 162105 16.0N 97.0W 3.5-5.3 BAAAA Oaxaca, Mexico
O: 21APR2024 03:50:26 15.2N 93.7W ML=4.0 EMSC OFFSHORE CHIAPAS, MEXICO
O: 20APR2024 14:09:11 15.2N 92.5W MB=4.9 EMSC CHIAPAS, MEXICO
P: 22APR2024 162359 16.0N 92.0W 3.5-5.3 AAAAA Guatemala
NEIC reported this earthquake of M 4.9 in Chiapas, Mexico was felt with intensity up to III in the area(s) of Chiapas, Mexico in Lazaro Cardenas.
O: 20APR2024 12:37:22 15.5N 95.0W ML=4.1 EMSC OFFSHORE OAXACA, MEXICO
P: 21APR2024 162370 17.0N 96.0W 3.5-5.4 ABAAA Oaxaca, Mexico
O: 21APR2024 04:30:50 16.2N 99.2W ML=4.3 EMSC OFFSHORE GUERRERO, MEXICO
O: 20APR2024 16:54:39 16.1N 98.9W ML=4.1 EMSC OFFSHORE GUERRERO, MEXICO
P: 23APR2024 162372 17.0N 100.0W 3.5-5.2 BABAA Oaxaca, Mexico
O: 20APR2024 14:41:58 16.8N 93.8W ML=4.2 EMSC CHIAPAS, MEXICO
P: 23APR2024 162356 17.0N 95.0W 3.5-5.5 BAAAA Chiapas, Mexico
O: 20APR2024 21:22:05 17.3N 106.0W ML=4.2 EMSC OFF COAST OF JALISCO, MEXICO
P: 17APR2024 162092 19.0N 106.0W 3.5-5.5 BBAAA Coast of Jalisco, Mexico
O: 21APR2024 06:03:31 18.3N 65.9W MD=3.1 EMSC PUERTO RICO
P: 18APR2024 162106 18.0N 66.0W 3.4-5.2 BAAAA Puerto Rico
O: 20APR2024 15:32:42 18.9N 68.6W MD=3.8 EMSC DOMINICAN REPUBLIC REGION
O: 20APR2024 09:43:44 18.8N 67.0W MD=3.3 EMSC PUERTO RICO REGION
P: 21APR2024 162373 18.0N 68.0W 3.4-4.9 AAAAA Puerto Rico
O: 20APR2024 13:30:58 22.0N 99.4W ML=4.0 EMSC SAN LUIS POTOSI, MEXICO
P: 16APR2024 162099 19.0N 101.0W 3.5-5.3 AAAAA Michoacan, Mexico
O: 20APR2024 11:54:35 28.9N 113.3W ML=4.0 EMSC GULF OF CALIFORNIA
O: 20APR2024 20:06:05 29.1N 113.6W ML=3.8 EMSC BAJA CALIFORNIA, MEXICO
P: 16APR2024 162164 30.2N 114.1W 2.0-3.9 AAAAA SW U.S.A
O: 20APR2024 08:49:33 26.2N 110.7W ML=4.0 EMSC GULF OF CALIFORNIA
O: 20APR2024 13:25:41 26.1N 110.6W ML=4.1 EMSC GULF OF CALIFORNIA
P: 24APR2024 162381 26.0N 110.0W 3.5-5.1 BAAAA Gulf of California
AFRICA AND EUROPE
O: 20APR2024 17:59:55 28.1N 16.2W ML=3.3 EMSC CANARY ISLANDS, SPAIN REGION
P: 13APR2024 162113 28.0N 16.0W 3.0-4.8 CAAAA Canary Islands
O: 20APR2024 12:44:15 35.4N 4.5E MB=4.9 EMSC NORTHERN ALGERIA
P: 11APR2024 162185 37.0N 5.0E 3.0-5.1 CBAAA Western Mediterranean
P: 22APR2024 162453 35.0N 4.0E 3.0-5.1 AAAAA Western Mediterranean
O: 21APR2024 06:37:22 64.8N 17.1W MB=5.3 EMSC ICELAND
P: 14APR2024 162259 65.0N 17.0W 3.0-4.6 AAAAA Iceland area
SOUTHWEST PACIFIC
O: 20APR2024 11:58:59 19.3S 177.5W MB=4.3 EMSC FIJI REGION
P: 24APR2024 162559 20.0S 178.0W 4.0-5.4 BAAAA Tonga Islands
O: 20APR2024 14:00:38 20.9S 178.6W MB=4.3 EMSC FIJI REGION
P: 16APR2024 162290 21.0S 178.0W 4.0-5.9 BAAAA 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: 20APR2024 10:49:32 30.3S 179.8E MW=4.0 EMSC KERMADEC ISLANDS REGION
P: 17APR2024 162303 32.0S 180.0E 4.0-5.4 BBAAA So. Kermadec Islands
JAPAN AND KURIL ISLANDS
O: 21APR2024 00:46:50 29.4N 130.4E ML=4.2 EMSC RYUKYU ISLANDS, JAPAN
O: 21APR2024 00:27:28 29.3N 130.5E MB=4.3 EMSC RYUKYU ISLANDS, JAPAN
P: 17APR2024 162123 29.0N 129.0E 4.0-5.4 BAAAA Ryukyu Islands
O: 21APR2024 03:39:44 45.3N 150.0E MB=4.4 EMSC KURIL ISLANDS
P: 22APR2024 162492 45.0N 149.0E 3.5-5.6 AAAAA So. Kurils
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 20APR2024 22:24:19 30.6N 114.7W ML=3.3 EMSC BAJA CALIFORNIA, MEXICO
O: 20APR2024 09:30:59 31.8N 114.9W ML=3.6 EMSC BAJA CALIFORNIA, MEXICO
O: 20APR2024 22:59:47 30.6N 114.7W ML=3.5 EMSC GULF OF CALIFORNIA
O: 20APR2024 10:38:36 31.5N 114.6W ML=3.4 EMSC GULF OF CALIFORNIA
P: 16APR2024 162164 30.2N 114.1W 2.0-3.9 BAAAA SW U.S.A
O: 20APR2024 22:44:30 31.5N 116.1W ML=3.2 EMSC BAJA CALIFORNIA, MEXICO
P: 22APR2024 162434 31.9N 116.3W 2.5-4.6 AAAAA So. California
O: 20APR2024 19:11:15 36.1N 117.9W ML=2.4 EMSC CENTRAL CALIFORNIA
O: 20APR2024 16:12:28 36.0N 118.0W ML=2.3 EMSC CENTRAL CALIFORNIA
P: 21APR2024 162398 36.1N 118.1W 2.5-4.6 AAAAA California/Nevada area
O: 20APR2024 22:03:10 36.3N 119.7W MD=2.5 EMSC CENTRAL CALIFORNIA
P: 19APR2024 162130 37.1N 117.8W 2.5-4.5 AABAA California/Nevada area
P: 23APR2024 162403 36.1N 120.1W 2.5-4.7 BAAAA 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 Home Garden.
O: 20APR2024 19:38:23 38.2N 117.7W ML=2.3 EMSC NEVADA
O: 20APR2024 08:37:27 38.2N 117.9W ML=2.8 EMSC NEVADA
P: 21APR2024 162399 37.4N 117.2W 2.5-4.4 AAAAA California/Nevada area
P: 24APR2024 162402 38.0N 118.8W 2.5-4.6 BAAAA California/Nevada area
O: 20APR2024 07:57:45 40.1N 123.7W MD=2.4 EMSC NORTHERN CALIFORNIA
P: 15APR2024 162210 40.0N 123.0W 2.5-4.8 BAAAA Northern California
O: 21APR2024 01:23:33 40.2N 121.2W MD=2.0 EMSC NORTHERN CALIFORNIA
P: 20APR2024 162211 40.2N 121.2W 2.5-4.7 AAAAA Northern California
O: 21APR2024 02:13:22 41.6N 126.8W ML=2.7 EMSC OFF COAST OF NORTHERN CALIFORN
P: 22APR2024 162484 42.1N 126.9W 3.0-4.8 AAAAA Off Coast of Oregon
ALASKA
O: 20APR2024 13:10:45 52.6N 170.8W ML=3.4 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 12APR2024 162232 52.1N 171.8W 3.5-5.1 CAAAA Andreanoff Isls, Aleutians
P: 22APR2024 162509 53.5N 167.3W 3.5-4.9 AACAA Fox Islands, Aleutians
O: 20APR2024 07:39:57 59.8N 152.1W ML=3.2 EMSC SOUTHERN ALASKA
P: 16APR2024 162253 60.2N 151.7W 3.2-4.9 BAAAA Central Alaska
NEIC reported this earthquake of M 3.2 in Southern Alaska was felt with intensity up to III in the area(s) of Southern Alaska in Anchor Point.
O: 20APR2024 09:07:24 61.8N 151.2W ML=3.0 EMSC SOUTHERN ALASKA
O: 20APR2024 21:34:04 62.7N 151.0W ML=3.3 EMSC CENTRAL ALASKA
P: 19APR2024 162258 63.0N 148.6W 3.2-4.9 AABAA Central Alaska
NEIC reported this earthquake of M 3.0 in Central Alaska was felt with intensity up to III in the area(s) of Central Alaska in Skwentna.
NEIC reported this earthquake of M 3.3 in Central Alaska was felt with intensity up to III in the area(s) of Central Alaska in Petersville.
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 20APR2024 18:36:47 43.3N 126.7W ML=3.0 EMSC OFF COAST OF OREGON
P: 17APR2024 162213 42.5N 126.8W 3.0-4.9 BAAAA Off Coast of Oregon
No events of M>=2 were located in the northwestern U.S. or western Canada today.
ROCKY MOUNTAINS REGION
O: 20APR2024 11:47:29 31.6N 104.0W ML=2.7 EMSC WESTERN TEXAS
O: 20APR2024 11:49:28 31.6N 104.0W ML=2.0 EMSC WESTERN TEXAS
O: 20APR2024 12:32:57 31.6N 104.3W ML=2.4 EMSC WESTERN TEXAS
O: 20APR2024 23:50:49 32.0N 103.8W ML=2.0 EMSC NEW MEXICO
O: 20APR2024 10:08:00 31.0N 103.2W ML=2.2 EMSC WESTERN TEXAS
O: 20APR2024 09:50:04 32.1N 103.0W ML=2.9 EMSC WESTERN TEXAS
P: 17APR2024 162163 31.2N 103.5W 2.0-3.9 BAAAA SW U.S.A
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 in Falls City.
O: 20APR2024 12:21:04 32.1N 101.1W ML=2.5 EMSC WESTERN TEXAS
P: 11APR2024 162163 32.2N 101.1W 2.0-3.9 CAAAA SW U.S.A
EASTERN U.S./CANADA
O: 20APR2024 23:04:32 40.7N 74.7W ml=1.3 ANSS Gladstone New Jersey
O: 20APR2024 21:15:21 40.7N 74.8W ml=1.0 ANSS Califon New Jersey
O: 20APR2024 18:32:50 40.7N 74.8W ml=0.5 ANSS Califon New Jersey
O: 20APR2024 18:07:10 40.7N 74.7W ml=1.1 ANSS Gladstone New Jersey
O: 20APR2024 16:36:40 40.7N 74.8W ml=0.8 ANSS Califon New Jersey
O: 20APR2024 14:03:05 40.7N 74.8W ML=1.5 ANSS CALIFON NEW JERSEY
P: 21APR2024 162474 40.0N 75.0W 2.0-4.2 AAAAA New England
O: 20APR2024 14:23:06 34.6N 96.8W ML=2.3 EMSC OKLAHOMA
O: 20APR2024 13:12:09 35.5N 96.8W ML=2.1 EMSC OKLAHOMA
P: 17APR2024 162180 36.0N 97.0W 2.0-4.1 BAAAA Southern Plains
P: 19APR2024 162179 34.0N 97.0W 2.0-4.0 AAAAA Southern Plains
O: 20APR2024 09:48:18 29.1N 97.8W ML=2.6 EMSC SOUTHERN TEXAS
P: 24APR2024 162387 28.0N 99.0W 3.0-4.5 BAAAA Northern Mexico
HAWAII
No earthquakes of M>=3 were located in Hawaii.
MODERATELY STRONG QUAKE IN LOYALTY ISLANDS
EARTHQUAKE SUMMARY FOR APRIL 19, 2024
The strongest earthquake in the world today was an M 5.7 in the Loyalty Islands.
It was not reported felt in this remote area. This event occurred near local solar midnight near the time of the full moon at a longitude which was expected to see maximum tidal stresses at this time. It was probably promoted by enhanced tidal stresses. The last earthquake with M>=5.5 in the Loyalty Islands was an M 5.8 on December 24, 2023. At the time this summary noted in this regard:
"The strongest earthquake in the world today was an M 5.7 in the region of the Loyalty Islands and New Caledonia. NEIC reported it was felt with intensity up to IV in the epicentral zone. This is probably an aftershock of the M 7.1 in southern Vanuatu of December 8, the strongest to date." (December 17, 2023)
Forecast 162552 had expected today’s event within about 100 km was likely
Around April 23.
O: 19APR2024 09:18:04 21.9S 170.8E MW=5.7 EMSC SOUTHEAST OF LOYALTY ISLANDS
O: 19APR2024 09:18:01 21.9S 170.8E mw=5.7 ANSS Loyalty Islands
P: 23APR2024 162552 23.0S 170.0E 4.0-5.4 BBAAA Loyalty Islands
Unusual earthquakes occurred in two oceanic areas today. The strongest of these was an M 5.2 in the Central mid-Atlantic but an M 4.5 also occurred in the Arctic Ocean north of Greenland. This event occurred near local solar noon. The last earthquake of M>=4.5 within about 250 km of this epicenter north of Greenland occurred two years ago on April 21, 2022 with M 5.1, the largest in this area since an M 5.6 on August 10, 1993.
O: 19APR2024 14:01:37 82.9N 23.0W MB=4.5 EMSC NEAR NORTH COAST OF GREENLAND
The earthquake in the Central mid-Atlantic of M 5.2 is the strongest within about 200 km of this epicenter since an M 5.5 on November 6, 2023.
"The strongest earthquake in the world today was an M 5.5 in the Central Mid-Atlantic Ridge. It was not felt in this remote area. This event occurred near local solar noon - a time when geomagnetic and tidal stresses maximize. It coincided with a major geomagnetic storm ..." (November 6, 2023)
Today's event - near the geomagnetic equator - also occurred with a major geomagnetic storm as noted in this summary:
"The planetary geomagnetic field today saw stormy conditions with AP 41. High latitudes saw stormy conditions with AP 46. Medium latitudes saw stormy conditions with AP 21. This is the strongest geomagnetic storm since global AP reached 64 on March 24, 2024. It is likely this will enhance global seismicity in the next five days but not immediately until ring currents form in the ionosphere." (April 20, 2024)
Forecast 162064 had expected this event in the Mid-Atlantic within about 50 km was likely around April 19. This epicenter is at the third node (120 degrees) from the M 6.7 in Macquarie of March 3, 2024 and may have been promoted by energy from that source.
O: 19APR2024 11:00:41 1.2S 24.4W MB=5.2 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19APR2024 11:00:40 1.1S 24.4W mb=5.2 ANSS central Mid-Atlantic Ridge"
P: 19APR2024 162064 1.0S 24.0W 4.0-5.6 AAAAA Central Mid-Atlantic
The strongest earthquake in the U.S. or Canada today was an M 4.6 in the Alaska Peninsula. It was not reported felt in the area. This is the strongest earthquake in the Alaska Peninsula within about 200 km of this epicenter since an M 4.6 on June 16, 2023. The last of larger magnitude occurred a year ago
on April 24, 2023 with M 4.8.
Forecasts 162229 and 162500 had expected enhanced seismicity in the Alaska Peninsula area in mid-April. This epicenter (like the M 5.2 in the mid-Atlantic today) is at the third node (120 degrees) from the M 6.7 in Macquarie of March 3, 2024 and may have been promoted by energy from that source.
O: 19APR2024 07:27:34 55.4N 157.1W MW=4.6 EMSC ALASKA PENINSULA
P: 15APR2024 162229 54.8N 158.7W 3.5-5.0 BAAAA Alaska Peninsula
P: 22APR2024 162500 54.7N 156.9W 3.5-5.0 BAAAA Alaska Peninsula
A series of light earthquake occurred today in the central Andreanof Islands, Aleutians, Alaska. They were not reported felt. The largest of these was an M 3.7 which occurred near local solar midnight and may have been influenced by strong tidal stresses which maximize near this hour.
Forecast 162502 had expected enhanced seismicity in this area within about
100 km of today's epicenter was likely around April 22.
O: 20APR2024 06:33:47 51.7N 177.5W ML=3.4 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 19APR2024 16:05:27 51.8N 177.5W ML=3.6 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 19APR2024 18:17:38 51.8N 177.5W ML=3.5 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 19APR2024 12:53:55 51.7N 177.5W ML=3.7 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 22APR2024 162502 51.0N 177.1W 3.5-5.1 BAAAA Andreanoff Isls, Aleutians
A light earthquake of M 3.4 occurred today in the Northwest Territories of Canada. The last earthquake within about 200 km of this epicenter with M>=3.4 occurred on November 19, 2022 with M 4.1. Today's event occurred near local solar midnight and may have been promoted by high tidal stresses.
Forecast 162264 expected this earthquake was likely within about 50 km around
April 13, 2024.
O: 18APR2024 10:41:24 70.7N 136.4W MB=3.4 ECAN OF TUKTOYAKTUK, NT
P: 13APR2024 162264 71.0N 134.0W 2.5-4.2 BAAAA Yukon Territory, Canada
Light earthquakes in the U.S. or Canada along the path of total eclipse of the sun of April 8 continued today. In addition to strong continuing activity in the Gulf of California and Jalisco and Michoacan, Mexico, minor earthquakes along this path occurred today in Ontario (M 2.2); Missouri (M 1.4, 2.0); Southern Texas (M 2.8, 2.5) and New Brunswick (M 1.8).
O: 19APR2024 21:24:25 29.0N 97.8W ML=2.5 EMSC SOUTHERN TEXAS
O: 19APR2024 15:15:18 29.0N 97.8W ML=2.8 EMSC SOUTHERN TEXAS
P: 14APR2024 162122 28.0N 98.0W 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 in Karnes City.
O: 19APR2024 03:35:54 45.5N 74.9W MB=2.2 ECAN OF ALFRED, ON
P: 22APR2024 162477 45.7N 75.2W 2.0-4.0 BAAAA New York State
O: 18APR2024 09:29:06 45.1N 67.9W MB=1.8 ECAN OF ST. STEPHEN, NB
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 ABAAA Maine
O: 19APR2024 13:32:55 36.6N 89.7W md=1.4 ANSS WSW of Howardville Missouri
O: 20APR2024 06:54:53 36.5N 89.5W MD=2.0 ANSS ESE OF MARSTON MISSOURI
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 AAAAA New Madrid area
O: 19APR2024 11:03:47 26.1N 110.9W ML=4.1 EMSC GULF OF CALIFORNIA
O: 19APR2024 08:16:24 26.2N 110.7W ML=4.3 EMSC GULF OF CALIFORNIA
O: 19APR2024 09:20:28 26.2N 110.7W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 09:27:56 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 14:16:13 26.2N 110.7W ML=4.2 EMSC GULF OF CALIFORNIA
O: 19APR2024 15:52:17 26.2N 110.7W ML=3.8 EMSC GULF OF CALIFORNIA
O: 19APR2024 18:17:57 26.2N 110.6W ML=4.1 EMSC GULF OF CALIFORNIA
O: 20APR2024 05:06:14 26.2N 110.7W mb=4.4 EMSC GULF OF CALIFORNIA
O: 19APR2024 08:03:31 26.3N 110.6W ML=4.3 EMSC GULF OF CALIFORNIA
O: 19APR2024 09:39:39 26.3N 110.9W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 10:03:20 26.3N 110.7W ML=3.8 EMSC GULF OF CALIFORNIA
O: 19APR2024 10:49:52 26.3N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 19APR2024 16:18:55 26.3N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 20:04:48 26.3N 110.5W ML=3.8 EMSC GULF OF CALIFORNIA
O: 19APR2024 07:53:23 26.4N 110.4W ML=4.2 EMSC GULF OF CALIFORNIA
P: 24APR2024 162381 26.0N 110.0W 3.5-5.1 BAAAA Gulf of California
NEIC reported these aftershocks of M 4.4 in the Gulf of California was felt with intensity up to III in the area(s) of the Gulf of California in Loreto, Mexico.
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: 19APR2024 14:25:52 24.4N 121.8E ML=4.6 EMSC TAIWAN
O: 20APR2024 00:35:11 24.2N 121.9E MB=4.4 EMSC TAIWAN
P: 20APR2024 162126 23.0N 121.0E 4.0-5.4 ABAAA Taiwan
P: 23APR2024 162393 24.0N 121.0E 4.0-5.4 BAAAA Taiwan
O: 20APR2024 04:32:53 36.5N 71.5E MB=4.5 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 23APR2024 162416 37.0N 71.0E 3.8-5.5 BAAAA Hindu Kush/Pakistan
O: 19APR2024 14:28:30 34.9N 129.7E ML=4.1 EMSC KOREA STRAIT
P: 14APR2024 162147 34.0N 132.0E 3.5-5.0 BABAA Kyushu, Japan area
EMSC reported this earthquake of M 4.0 in the Korea Strait was felt with intensity up to II in the area(s) of Korea in Daegu.
O: 20APR2024 01:44:05 33.6N 81.8E MB=4.6 EMSC WESTERN XIZANG
P: 21APR2024 162454 30.0N 81.0E 3.8-5.6 ACAAA Xizang
O: 20APR2024 05:17:19 55.3N 163.4E MB=3.9 EMSC OFF EAST COAST OF KAMCHATKA
P: 24APR2024 162511 55.0N 163.0E 4.0-5.9 BAAAA Komandorsky Isl
INDONESIA AND PHILIPPINES
O: 19APR2024 19:27:51 0.8S 99.1E MB=4.5 EMSC SOUTHERN SUMATRA, INDONESIA
P: 17APR2024 162080 2.0S 99.0E 4.0-5.4 ABAAA So. of Sumatera
O: 20APR2024 04:39:17 4.5S 129.3E MB=4.3 EMSC BANDA SEA
P: 20APR2024 162086 5.0S 131.0E 4.0-5.4 AABAA West Irian, PNG
O: 20APR2024 00:38:57 4.9N 126.8E MB=4.5 EMSC KEPULAUAN TALAUD, INDONESIA
P: 19APR2024 162058 4.0N 125.0E 4.0-5.6 AABAA Mindanao, Philippines
O: 20APR2024 02:22:11 7.9N 127.1E MB=4.9 EMSC PHILIPPINE ISLANDS REGION
O: 19APR2024 11:04:53 8.2N 126.8E ML=4.0 EMSC MINDANAO, PHILIPPINES
P: 11APR2024 162056 9.0N 127.0E 4.0-5.4 CAAAA Halmahera
O: 19APR2024 20:38:21 9.3S 110.3E MB=4.5 EMSC SOUTH OF JAVA, INDONESIA
P: 24APR2024 162343 9.0S 111.0E 4.0-5.6 BAAAA So. of Java
O: 20APR2024 03:42:24 17.0N 145.4E MB=5.0 EMSC ALAMAGAN REG, N. MARIANA ISLAN
P: 16APR2024 162103 18.0N 145.0E 4.0-5.4 BAAAA No. Marianas
CENTRAL AND SOUTH AMERICA
O: 20APR2024 00:58:30 8.9N 84.1W ML=4.1 EMSC OFF COAST OF COSTA RICA
O: 20APR2024 00:59:48 9.0N 84.0W ML=4.7 EMSC OFF COAST OF COSTA RICA
P: 19APR2024 162053 9.0N 84.0W 3.5-5.2 AAAAA Costa Rica
NEIC reported this earthquake of M 4.3 in Costa Rica was felt with intensity up to III in the area(s) of Costa Rica in Quepos.
O: 19APR2024 20:25:41 4.6N 82.6W MB=4.6 EMSC SOUTH OF PANAMA
P: 23APR2024 162320 4.0N 83.0W 4.0-5.9 BAAAA Ecuador
O: 19APR2024 17:43:06 13.1N 89.3W ML=4.0 EMSC OFFSHORE EL SALVADOR
P: 15APR2024 162091 13.0N 89.0W 3.5-5.6 BAAAA Coast of Central America
O: 19APR2024 21:49:12 17.0N 94.4W ML=4.1 EMSC OAXACA, MEXICO
P: 23APR2024 162356 17.0N 95.0W 3.5-5.5 BAAAA Chiapas, Mexico
O: 19APR2024 14:33:47 18.0N 103.3W ML=4.1 EMSC OFFSHORE MICHOACAN, MEXICO
P: 13APR2024 162099 18.0N 103.0W 3.5-5.3 CAAAA Michoacan, Mexico
O: 19APR2024 15:48:22 19.1N 104.8W ML=4.0 EMSC OFFSHORE JALISCO, MEXICO
P: 17APR2024 162092 19.0N 106.0W 3.5-5.5 AAAAA Coast of Jalisco, Mexico
O: 19APR2024 16:50:33 18.3N 72.4W ML=3.0 EMSC HAITI REGION
O: 19APR2024 07:28:34 20.0N 73.0W ML=3.1 EMSC HAITI REGION
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 BABAA Bahamas/No. Caribbean
O: 19APR2024 11:03:47 26.1N 110.9W ML=4.1 EMSC GULF OF CALIFORNIA
O: 19APR2024 08:16:24 26.2N 110.7W ML=4.3 EMSC GULF OF CALIFORNIA
O: 19APR2024 09:20:28 26.2N 110.7W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 09:27:56 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 14:16:13 26.2N 110.7W ML=4.2 EMSC GULF OF CALIFORNIA
O: 19APR2024 15:52:17 26.2N 110.7W ML=3.8 EMSC GULF OF CALIFORNIA
O: 19APR2024 18:17:57 26.2N 110.6W ML=4.1 EMSC GULF OF CALIFORNIA
O: 20APR2024 05:06:14 26.2N 110.7W mb=4.4 EMSC GULF OF CALIFORNIA
O: 19APR2024 08:03:31 26.3N 110.6W ML=4.3 EMSC GULF OF CALIFORNIA
O: 19APR2024 09:39:39 26.3N 110.9W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 10:03:20 26.3N 110.7W ML=3.8 EMSC GULF OF CALIFORNIA
O: 19APR2024 10:49:52 26.3N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 19APR2024 16:18:55 26.3N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 20:04:48 26.3N 110.5W ML=3.8 EMSC GULF OF CALIFORNIA
O: 19APR2024 07:53:23 26.4N 110.4W ML=4.2 EMSC GULF OF CALIFORNIA
P: 24APR2024 162381 26.0N 110.0W 3.5-5.1 BAAAA Gulf of California
AFRICA AND EUROPE
O: 19APR2024 21:15:00 27.1S 27.2E ML=3.3 EMSC SOUTH AFRICA
P: 21APR2024 162554 27.0S 28.0E 3.0-4.6 AAAAA Rep. South Africa
O: 19APR2024 08:02:21 37.8N 26.8E MW=4.3 EMSC DODECANESE ISLANDS, GREECE
P: 22APR2024 162396 38.0N 25.0E 3.0-4.6 BABAA Aegean Sea
NEIC reported this earthquake of M 4.3 in Greece was felt with intensity up to IV in the area(s) of Greece in Neon Karlovasion.
EMSC reported it was felt with moderate intensity in Ampelos, Kampos, Neo Karlovasi, Kokkari, Velanidia Koumaiika, Kamps Marathokampos, Samos, and in Turkey in Guzelcamli, Sigacik, Kusadasi, Turkmen among others.
No significant (M>=5) or unusual earthquakes were reported in Europe today.
SOUTHWEST PACIFIC
O: 19APR2024 09:18:04 21.9S 170.8E MW=5.7 EMSC SOUTHEAST OF LOYALTY ISLANDS
O: 19APR2024 09:18:01 21.9S 170.8E mw=5.7 ANSS Loyalty Islands
P: 23APR2024 162552 23.0S 170.0E 4.0-5.4 BBAAA Loyalty Islands
O: 20APR2024 04:17:17 23.3S 179.7W MB=4.3 EMSC SOUTH OF FIJI ISLANDS
P: 24APR2024 162559 22.0S 180.0W 4.0-5.9 BBAAA Tonga Islands
OCEAN RIDGES
O: 19APR2024 14:01:37 82.9N 23.0W MB=4.5 EMSC NEAR NORTH COAST OF GREENLAND
O: 19APR2024 11:00:41 1.2S 24.4W MB=5.2 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19APR2024 11:00:40 1.1S 24.4W mb=5.2 ANSS central Mid-Atlantic Ridge"
P: 19APR2024 162064 1.0S 24.0W 4.0-5.6 AAAAA Central Mid-Atlantic
O: 19APR2024 15:45:10 28.1N 16.2W ML=2.0 EMSC CANARY ISLANDS, SPAIN REGION
P: 13APR2024 162113 28.0N 16.0W 3.0-4.8 CAAAA Canary Islands
O: 19APR2024 17:39:20 33.2N 14.8W MB=3.4 EMSC MADEIRA ISLANDS, PORTUGAL REGI
ZEALANDIA AND AUSTRALIA REGION
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 19APR2024 12:50:09 29.0N 142.5E MB=4.4 EMSC BONIN ISLANDS, JAPAN REGION
P: 15APR2024 162159 30.0N 142.0E 4.0-5.8 BAAAA Off East Coast Honshu
O: 19APR2024 22:07:28 43.4N 146.4E mb=4.8 EMSC KURIL ISLANDS
O: 19APR2024 20:59:33 42.9N 146.8E MB=4.8 EMSC OFF COAST OF HOKKAIDO, JAPAN
P: 20APR2024 162194 43.0N 145.0E 3.5-5.4 AABAA Hokkaido, Japan
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 19APR2024 20:13:44 30.4N 114.3W ML=3.8 EMSC GULF OF CALIFORNIA
O: 19APR2024 19:19:13 30.5N 114.5W ML=3.7 EMSC GULF OF CALIFORNIA
P: 16APR2024 162164 30.2N 114.1W 2.0-3.9 BAAAA SW U.S.A
O: 19APR2024 19:17:38 31.3N 115.3W ML=3.0 EMSC BAJA CALIFORNIA, MEXICO
P: 22APR2024 162434 31.9N 116.3W 2.5-4.6 BAAAA So. California
O: 20APR2024 03:45:04 32.2N 117.4W ML=2.3 EMSC OFFSHORE BAJA CALIFORNIA, MEXI
P: 22APR2024 162435 32.0N 117.4W 2.5-4.4 AAAAA So. California
O: 19APR2024 18:59:05 32.6N 115.7W ML=2.5 EMSC BAJA CALIFORNIA, MEXICO
P: 16APR2024 162168 33.0N 115.9W 2.5-4.7 BAAAA So. California
NEIC reported this earthquake of M 2.6 in Baja California, Mexico was felt with intensity up to III in the area(s) of Baja California, Mexico in Progreso.
O: 19APR2024 17:09:39 33.8N 116.2W ML=2.1 EMSC SOUTHERN CALIFORNIA
P: 17APR2024 162169 33.9N 116.9W 2.5-4.5 AAAAA So. California
O: 19APR2024 07:25:23 36.1N 117.9W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 19APR2024 10:17:29 36.4N 117.9W ML=2.1 EMSC CENTRAL CALIFORNIA
P: 17APR2024 162174 35.9N 117.7W 2.5-4.6 AAAAA So. California
O: 19APR2024 14:57:55 36.5N 115.8W ML=2.0 EMSC NEVADA
P: 19APR2024 162132 37.8N 115.8W 2.5-4.7 ABAAA California/Nevada area
O: 20APR2024 02:42:28 37.2N 117.6W ML=2.4 EMSC CENTRAL CALIFORNIA
O: 20APR2024 03:46:15 37.2N 117.6W ML=2.0 EMSC CENTRAL CALIFORNIA
P: 19APR2024 162130 37.1N 117.8W 2.5-4.5 AAAAA California/Nevada area
O: 19APR2024 22:08:10 37.8N 122.6W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 17APR2024 162137 38.0N 122.3W 2.5-4.7 AAAAA Central California
O: 19APR2024 12:07:01 38.1N 118.0W ML=2.4 EMSC NEVADA
P: 19APR2024 162133 38.0N 118.8W 2.5-4.7 AAAAA California/Nevada area
O: 19APR2024 17:30:42 38.1N 122.2W MD=2.1 EMSC SAN FRANCISCO BAY AREA, CALIF.
P: 17APR2024 162137 38.0N 122.3W 2.5-4.7 AAAAA Central California
O: 19APR2024 12:05:45 38.2N 118.0W ML=2.9 EMSC NEVADA
P: 19APR2024 162133 38.0N 118.8W 2.5-4.7 AAAAA California/Nevada area
O: 19APR2024 19:52:44 38.5N 121.7W MD=2.0 EMSC NORTHERN CALIFORNIA
P: 19APR2024 162136 37.1N 121.5W 2.5-4.6 ABAAA Central California
NEIC reported this earthquake of M 2.0 in Northern California was felt with intensity up to III in the area(s) of Northern California in Dixon.
O: 19APR2024 21:01:01 38.6N 122.4W MD=2.3 EMSC NORTHERN CALIFORNIA
P: 17APR2024 162138 38.9N 122.8W 2.5-4.8 AAAAA Central California
NEIC reported this earthquake of M 2.3 in Northern California was felt with intensity up to III in the area(s) of Northern California in Angwin.
ALASKA
O: 19APR2024 07:27:34 55.4N 157.1W MW=4.6 EMSC ALASKA PENINSULA
P: 15APR2024 162229 54.8N 158.7W 3.5-5.0 BAAAA Alaska Peninsula
P: 22APR2024 162500 54.7N 156.9W 3.5-5.0 BAAAA Alaska Peninsula
O: 19APR2024 16:25:45 52.6N 170.9W ML=3.9 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 12APR2024 162232 52.1N 171.8W 3.5-5.1 CAAAA Andreanoff Isls, Aleutians
O: 20APR2024 01:42:58 54.1N 166.0W ML=3.3 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 18APR2024 162237 53.5N 167.3W 3.5-5.1 AAAAA Fox Islands, Aleutians
O: 19APR2024 20:04:01 57.6N 153.3W ML=3.1 EMSC KODIAK ISLAND REGION, ALASKA
P: 16APR2024 162253 60.2N 151.7W 3.2-4.9 BCAAA Central Alaska
NEIC reported this earthquake of M 3.1 in Southern Alaska was felt with intensity up to III in the area(s) of Southern Alaska in Larsen Bay.
O: 19APR2024 12:41:46 65.6N 161.8W ML=4.0 EMSC NORTHERN ALASKA
O: 20APR2024 06:33:47 51.7N 177.5W ML=3.4 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 19APR2024 16:05:27 51.8N 177.5W ML=3.6 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 19APR2024 18:17:38 51.8N 177.5W ML=3.5 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 19APR2024 12:53:55 51.7N 177.5W ML=3.7 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 22APR2024 162502 51.0N 177.1W 3.5-5.1 BAAAA Andreanoff Isls, Aleutians
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 20APR2024 04:18:57 46.3N 119.3W ML=2.8 EMSC WASHINGTON
P: 15APR2024 162224 47.7N 120.3W 2.0-3.9 BBAAA Washington state, U.S.
NEIC reported this earthquake of M 2.8 in Washington State was felt with intensity up to III in the area(s) of Washington State in Richland.
EMSC reported it was felt with moderate shaking in Washington at Richland and Kennewick.
O: 19APR2024 20:07:38 47.3N 117.9W MD=2.2 EMSC WASHINGTON
P: 17APR2024 162203 47.7N 117.4W 2.0-4.0 AAAAA Montana/Idaho
O: 18APR2024 10:41:24 70.7N 136.4W MB=3.4 ECAN OF TUKTOYAKTUK, NT
P: 13APR2024 162264 71.0N 134.0W 2.5-4.2 BAAAA Yukon Territory, Canada
ROCKY MOUNTAINS REGION
O: 19APR2024 09:27:37 31.7N 104.4W ML=2.1 EMSC WESTERN TEXAS
O: 19APR2024 15:27:57 31.8N 103.7W ML=2.8 EMSC WESTERN TEXAS
EASTERN U.S./CANADA
O: 19APR2024 21:24:25 29.0N 97.8W ML=2.5 EMSC SOUTHERN TEXAS
O: 19APR2024 15:15:18 29.0N 97.8W ML=2.8 EMSC SOUTHERN TEXAS
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 BAAAA Northern Mexico
O: 19APR2024 07:37:05 35.5N 83.6W MD=2.1 EMSC NORTH CAROLINA
O: 19APR2024 07:37:05 35.5N 83.6W md=2.1 ANSS Bryson City North Carolina
P: 16APR2024 162146 35.0N 83.0W 2.0-4.4 BAAAA Kentucky/Tennessee/NC
O: 19APR2024 19:48:35 35.5N 96.7W ML=2.0 EMSC OKLAHOMA
P: 17APR2024 162180 36.0N 97.0W 2.0-4.1 AAAAA Southern Plains
O: 20APR2024 03:34:05 40.7N 74.8W ml=1.3 ANSS Califon New Jersey
O: 19APR2024 08:54:02 40.7N 74.8W ml=1.5 ANSS Califon New Jersey
O: 20APR2024 03:17:48 40.7N 74.7W ml=0.2 ANSS Gladstone New Jersey
O: 20APR2024 03:11:50 40.7N 74.7W ml=1.0 ANSS Whitehouse Station New Jersey
O: 20APR2024 02:06:35 40.7N 74.7W mb=2.1 ANSS Gladstone New Jersey
O: 19APR2024 22:56:11 40.7N 74.8W ml=1.3 ANSS Califon New Jersey
O: 19APR2024 22:55:43 40.7N 74.8W ml=0.8 ANSS Whitehouse Station New Jersey
O: 20APR2024 02:06:35 40.7N 74.7W ML=2.1 EMSC NEW JERSEY
P: 21APR2024 162474 40.0N 75.0W 2.0-4.2 AAAAA New England
NEIC reported these earthquakes of M 2.1 and 1.5 in New Jersey were felt with intensity up to III in the area(s) of New Jersey in Califon and Gladstone.
O: 19APR2024 20:36:19 40.3N 76.0W mb=2.4 ANSS Lincoln Park Pennsylvania
O: 19APR2024 20:36:19 40.3N 76.0W ML=2.4 EMSC PENNSYLVANIA
P: 21APR2024 162474 40.0N 75.0W 2.0-4.2 AAAAA New England
NEIC reported this earthquake of M 2.4 in Pennsylvania was felt with intensity up to IV in the area(s) of Pennsylvania in Lincoln Park.
O: 19APR2024 14:01:37 82.9N 23.0W MB=4.5 EMSC NEAR NORTH COAST OF GREENLAND
O: 19APR2024 03:35:54 45.5N 74.9W MB=2.2 ECAN OF ALFRED, ON
P: 22APR2024 162477 45.7N 75.2W 2.0-4.0 BAAAA New York State
O: 18APR2024 17:45:03 71.8N 68.4W MB=2.9 ECAN OF CLYDE RIVER, NU
P: 9APR2024 161997 73.3N 73.5W 2.5-4.1 CBAAA Baffin/Davis Strait Canada
O: 18APR2024 09:29:06 45.1N 67.9W MB=1.8 ECAN OF ST. STEPHEN, NB
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 ABAAA Maine
O: 19APR2024 13:32:55 36.6N 89.7W md=1.4 ANSS WSW of Howardville Missouri
O: 20APR2024 06:54:53 36.5N 89.5W MD=2.0 ANSS ESE OF MARSTON MISSOURI
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 AAAAA New Madrid area
HAWAII
No earthquakes of M>=3 were located in Hawaii.
MODERATELY LARGE EARTHQUAKES IN GULF OF CALIFORNIA AND TURKEY
EARTHQUAKE SUMMARY FOR APRIL 18, 2024
The strongest earthquakes in the world today occurred within one minute of each
other. They were reported by NEIC with magnitude M 5.6 in the Gulf of California
and M 5.6 in Western Turkey. The event in Turkey was reported with intensity VII
to have been felt with intensity up to VII in Sulusaray, Turkey. The last earthquake within about 200 km of this epicenter in western Turkey with M>=5.6 occurred on August 14, 1996 with M 5.7-5.8. A major earthquake occurred about 300 km southeast of this epicenter on February 6, 2023 with M 7.8 and did much damage in the area of central Turkey. EMSC reported strong shaking in Turkey at Balikhisar, Korucuk, Bedirkale, Turhal, Ahishavi, Istanbulluoglu, Kizilkoy, Yunus Emre, Yeniyol, Karsiyaka, Buyukbeybagi, Kaleardi, Esentepe, and up to 350 km from the epicenter in Toros, Turkey.
Forecast 162479 had expected today's earthquake in Central Turkey was likely within about 100 km around April 23, 2024.
O: 18APR2024 18:43:29 40.1N 36.0E Mw=4.0 EMSC CENTRAL TURKEY
O: 18APR2024 19:31:45 40.1N 36.0E Mw=4.4 EMSC CENTRAL TURKEY
O: 18APR2024 21:09:55 40.1N 36.0E Mw=4.1 EMSC CENTRAL TURKEY
O: 18APR2024 15:11:25 40.0N 36.0E Mw=5.6 EMSC CENTRAL TURKEY
O: 18APR2024 15:11:25 40.0N 36.0E mw=5.6 ANSS W of Sulusaray Turkey
P: 23APR2024 162479 41.0N 36.0E 3.5-5.3 BAAAA No. Turkey/Black Sea
The earthquake of M 5.6 in the Gulf of California was the largest event to date in a swarm which began after the total solar eclipse of April 8, 2024 which was visible in this epicentral area around 18:20 UT. While not total at this epicenter the maximum of this eclipse occurred about 400 km south of this epicenter over Jalisco, Mexico. It is likely that strong tidal stresses from that alignment helped promote today's moderate earthquake in the area. A foreshock of M 5.2 occurred in the region earlier in the day and was reported by NEIC to have been felt with intensity up to IV in Loreto, Mexico. That event occurred within minutes of local solar midnight and was likely promoted by strong tidal stresses which maximize near this hour. The last earthquake of M>=5.6 within about 200 km of this epicenter in the Gulf of California was an M 6.3 on January 19, 2018. At the time this summary noted:
"The M 6.3 is the strongest earthquake within about 200 km of this epicenter since an M 6.5 on October 19, 2013. The largest event in the areas in the past 25 years was an M 6.6 on January 4, 2006 and a similar M 6.6 on August 28, 1995. Occasionally large earthquakes in the Gulf of California can increase seismicity along strike-slip faults to the north including along the southern San Andreas in California." (January 19, 2018)
Forecast 162114 and 162115 had expected this activity in the Gulf of California was likely in mid-April. This activity is at 108 degrees from the M 7.4 in Taiwan of April 2 and at 105 degrees from the New Guinea quake of March 23 (M 6.9) and may have been promoted by energy from those sources. These events are also located at the fourth node (90 degrees) from the M 7.4 in Western Honshu, Japan of January 1, 2024 and the Loyalty Islands of M 7.1 of December 7, 2023 and at the seventh node (51 degrees) from the M 6.7 in Brazil of January 20, 2024 and may have been promoted by energy from those sources.
O: 18APR2024 22:15:41 26.0N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:58:55 26.1N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 16:13:42 26.1N 110.9W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 07:39:39 26.3N 110.6W mw=5.2 ANSS ENE of Loreto Mexico
O: 18APR2024 22:27:53 26.1N 110.8W ML=3.8 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:53:24 26.2N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:05:34 26.2N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:09:08 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 18APR2024 11:14:09 26.2N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 11:47:31 26.2N 110.7W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 12:38:51 26.2N 110.7W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 13:33:41 26.2N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 22:29:09 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 01:26:37 26.2N 110.6W ML=4.3 EMSC GULF OF CALIFORNIA
O: 19APR2024 04:30:24 26.2N 110.6W ML=4.3 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:19:26 26.3N 110.3W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:16:03 26.3N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 18APR2024 15:12:40 26.3N 110.4W Mw=5.6 EMSC GULF OF CALIFORNIA
O: 19APR2024 01:54:54 26.3N 110.5W ML=4.3 EMSC GULF OF CALIFORNIA
O: 18APR2024 07:39:41 26.4N 110.5W Mw=5.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:49:55 26.4N 110.5W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:49:23 26.5N 110.3W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 16:04:00 25.8N 110.6W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 15:12:38 26.2N 110.5W mw=5.6 ANSS ENE of Loreto Mexico
P: 15APR2024 162115 25.0N 113.0W 3.5-5.1 BABAA Gulf of California
P: 24APR2024 162381 26.0N 110.0W 3.5-5.1 CAAAA Gulf of California
Other unusual earthquakes along the path of the total eclipse of the sun of April 8 continued today with an M 2.2 in Illinois and a smaller event south of this in Missouri. An M 3.0 hit this region of Illinois on March 28, 2024 following an M 3.1 on December 18, 2023 and this may be an aftershock of that event. At the time this summary noted:
"An unusually large M 3.1 earthquake shook areas of Illinois (US) today. NEIC reported it was felt with intensity up to IV in Waltonville, Illinois. NEIC also reported light shaking in Wayne County, Illinois near Mount Vernon. EMSC reported moderate shaking in Du Quoin, Illinois. An earthquake of M 3.6 hit about 300 km north of this epicenter on November 15, 2023 but the last event of M>=3.1 in Illinois within about 150 km of this epicenter occurred on September 19, 2017 and September 9, 2017 with M 3.8 and 3.1." (December 18, 2023)
This epicenter lies directly on the path of total eclipse of April 8 and may have been influenced by energy related to tidal effects with that eclipse. The eclipse was visible at this epicenter at 19:19:02 UT for four minutes.
Forecasts 161880 and 162153 had expected this activity was likely with the eclipse between April 7 and 15, 2024. These events in Missouri and Illinois are located at 103 degrees from the M 6.9 in the Mariana Islands of April 5, 2024 and may have been promoted by energy from those sources
O: 19APR2024 01:05:52 38.4N 89.1W ML=2.2 EMSC ILLINOIS
O: 19APR2024 01:05:52 38.4N 89.1W mb=2.2 ANSS E of Richview Illinois
P: 7APR2024 161880 38.0N 89.0W 2.0-4.3 DAAAA New Madrid area
P: 15APR2024 162153 38.0N 91.0W 2.0-4.3 BABAA New Madrid area
This epicenter in Missouri falls on the path of total eclipse of the sun on April 8. The eclipse was visible at this epicenter around 18:58-19:00 UT for
4 minutes 11 seconds. It is likely that stresses associated with the eclipse have helped promote this, and a number of other minor earthquakes along the eclipse path in the past two weeks.
Forecasts 162422 had expected this activity was likely within about 10 km around April 21, 2024.
O: 18APR2024 08:15:08 36.5N 89.5W MD=1.6 ANSS ESE OF MARSTON MISSOURI
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 BAAAA New Madrid area
A major eruption of Mount Ruang on Sanguine Islands, Indonesis occurred today. It was accompanied by tsunami warnings and falling volcanic ash and projectile bombs. Ruang is located in the area of North Sulawesi Province in Indonesia and erupted at least five times in the past 24 hours. The local airport at Manado has been shut down temporarily and access to the area is being restricted while residents are evacuated.
The volcanic eruption in Iceland which has been ongoing for the past month also made a resurgence today with a major eruption today.
The strongest earthquake in the U.S. or California today was an M 4.3 in Central California. NEIC reported this earthquake of M 4.3 in Central California was felt with intensity up to V in the area(s) of Central California in Bodfish.
An aftershock of M 3.2 was felt with intensity V in Bodfish, California. A number of other aftershocks were also felt lightly. EMSC reported the mainshock was strongly felt in California at Bodfish, Lake Isabella, Wofford Heights, Caliente, Weldon, where buildings shook, Kernville, Bakersfield, Tehachapi, Arvin, Springville, Delano, Porterville, Ridgecrest, Tulare among others. Today's mainshock occurred within minutes of local solar noon and was probably promoted by tidal stresses which maximize near this hour. The last earthquake with M>=4.3 in this area of California was an M 4.2 on April 19, 2014 exactly 10 years ago. The last of larger magnitude was an M 5.1 on September 29, 2004. At the time of the event of April 19, 2014 this summary noted:
"The strongest earthquake in the U.S. outside Alaska was an M 4.3 in Central
California. NEIC reported this earthquake was felt with intensity IV in Wofford Heights and II-III in East Tulare County, Bodfish, Lake Isabella, Wasco, Weldon, Bakersfield, California City, Caliente and Tehachapi, California. This is the largest earthquake within 50 km of this epicenter since an M 5.1 on September 29, 2004. An M 4.2-4.3 hit the area on July 24, 2013." (April 19, 2014)
Forecast 162173 had expected today's activity in this region was likely within about 15 km around April 19, 2024. This activity is located at 103-104 degrees from recent strong and major earthquakes in Mindanao, Philippines and at 102 degrees from the M 7.1 in Xinjiang, China of January 22, 2024 and may have been promoted by energy from those sources.
O: 18APR2024 19:19:18 35.5N 118.5W Mw=4.2 EMSC CENTRAL CALIFORNIA
O: 18APR2024 20:15:09 35.5N 118.5W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 18APR2024 20:34:26 35.5N 118.5W ML=2.4 EMSC CENTRAL CALIFORNIA
O: 18APR2024 21:20:33 35.5N 118.5W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 19APR2024 04:51:41 35.5N 118.5W ML=3.0 EMSC CENTRAL CALIFORNIA
O: 18APR2024 19:19:18 35.5N 118.5W mw=4.3 ANSS km S of Bodfish
P: 19APR2024 162173 35.6N 118.4W 2.5-4.7 AAAAA So. California
The strong swarm of earthquakes in the Vancouver, British Columbia area which began yesterday with M 4.9 events continued today. The strongest of today's events were of M 4.4 and an M 4.1 which occurred within minutes of local solar midnight and were probably promoted by strong tidal stresses which maximize near this hour. In the previous issue of this summary it was reported in part:
"The strongest earthquake in the U.S. or Canada today was an M 4.9 in the area of Vancouver, British Columbia, Canada. NEIC reported it was felt with intensity III in Port McNeill, Canada. This activity began with an M 4.9 near local solar noon and may have been promoted by strong tidal stresses which maximize near this hour. The last earthquake within about 150 km of this epicenter in Vancouver Island area with M>=4.9 occurred on October 16, 2023. That event was probably an aftershock of an M 5.6 on September 17, 2023." (April 18, 2024)
Forecast 162233 had expected today's activity was likely within about 50 km of today's events in mid-April.
O: 18APR2024 09:18:23 50.0N 130.2W MB=3.8 ECAN OF HOLBERG, BC
O: 18APR2024 07:36:37 50.0N 130.2W MB=3.5 ECAN OF HOLBERG, BC
O: 18APR2024 08:40:12 50.3N 129.9W mb=4.1 ANSS Port McNeill Canada
O: 18APR2024 06:41:42 49.9N 130.2W MB=4.4 ECAN OF HOLBERG, BC
P: 14APR2024 162233 50.6N 130.5W 3.0-5.0 BAAAA British Colombia
Other moderate to large earthquakes in the world today occurred as an M 5.4 in the Volcano Islands of southern Japan. This is the strongest earthquake in the Volcano Islands since an M 6.0 on February 12, 2024 and may be an aftershock of that mainshock.
Forecast 162127 had expected this event within about 100 km was likely around April 18.
O: 18APR2024 09:29:16 22.8N 143.2E Mw=5.4 EMSC VOLCANO ISLANDS, JAPAN REGION
O: 18APR2024 09:29:16 22.8N 143.3E mw=5.4 ANSS Volcano Islands Japan region"
P: 18APR2024 162127 23.0N 144.0E 4.0-5.4 AAAAA Volcano 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: 18APR2024 21:54:13 25.2N 99.9E mb=4.3 EMSC YUNNAN, CHINA
P: 15APR2024 162120 28.0N 101.0E 4.0-5.5 BCAAA Myanmar
O: 18APR2024 15:22:34 33.3N 76.7E ML=4.0 EMSC KASHMIR-INDIA BORDER REGION
P: 23APR2024 162427 35.0N 75.0E 3.8-5.2 BBBAA Northern India
O: 18APR2024 17:40:02 33.5N 81.8E mb=5.1 EMSC WESTERN XIZANG
O: 18APR2024 17:53:00 33.7N 82.2E mb=4.6 EMSC WESTERN XIZANG
O: 18APR2024 07:43:33 33.5N 81.8E mb=4.7 EMSC WESTERN XIZANG
P: 15APR2024 162186 30.0N 82.0E 3.8-5.4 BCAAA Xizang
O: 18APR2024 23:09:31 36.0N 57.5E mb=4.4 EMSC NORTHEASTERN IRAN
P: 13APR2024 162156 37.0N 59.0E 3.8-5.4 BABAA No. Iran
O: 18APR2024 22:32:02 36.6N 54.3E mb=4.3 EMSC NORTHERN IRAN
P: 17APR2024 162156 36.0N 51.0E 3.8-5.2 AACAA No. Iran
INDONESIA AND PHILIPPINES
O: 19APR2024 06:02:04 1.5N 124.9E ML=4.4 EMSC MINAHASA, SULAWESI, INDONESIA
P: 17APR2024 162057 1.0N 123.0E 4.0-5.7 AABAA Mindanao, Philippines
O: 18APR2024 20:00:10 2.7N 126.7E ML=4.1 EMSC MOLUCCA SEA
O: 18APR2024 22:17:17 2.0N 126.4E ML=4.4 EMSC MOLUCCA SEA
P: 16APR2024 162058 3.0N 126.0E 4.0-5.5 AAAAA Mindanao, Philippines
P: 5APR2024 161835 16.0N 145.0E 4.0-5.4 AAAAA No. Marianas
P: 12APR2024 162107 12.0N 142.0E 4.0-5.5 CACAA So. Marianas/Guam
O: 18APR2024 14:05:08 15.8N 146.9E mb=4.7 EMSC SAIPAN REG., N. MARIANA ISLAND
O: 18APR2024 18:45:00 15.9N 146.8E mb=4.6 EMSC SAIPAN REG., N. MARIANA ISLAND
P: 16APR2024 162107 14.0N 146.0E 4.0-5.4 ABAAA So. Marianas/Guam
P: 23APR2024 162368 15.0N 147.0E 4.0-5.7 BAAAA No. Marianas
CENTRAL AND SOUTH AMERICA
O: 18APR2024 16:28:18 18.2N 68.4W MD=3.9 ANSS DE YUMA DOMINICAN REPUBLIC
P: 21APR2024 162373 18.0N 68.0W 3.4-4.9 BAAAA Puerto Rico
O: 18APR2024 22:02:55 7.4N 80.5W ML=4.2 EMSC PANAMA
P: 15APR2024 162053 7.0N 82.0W 3.5-5.0 BABAA Costa Rica
O: 18APR2024 17:18:01 13.3N 90.3W ML=4.4 EMSC OFFSHORE EL SALVADOR
P: 15APR2024 162094 13.0N 90.0W 3.5-5.4 BAAAA Guatemala
O: 18APR2024 09:10:31 14.6N 92.0W ML=4.0 EMSC GUATEMALA
P: 17APR2024 162094 14.0N 92.0W 3.5-5.4 AAAAA Guatemala
O: 19APR2024 02:34:26 15.9N 95.6W ML=4.1 EMSC OFFSHORE OAXACA, MEXICO
O: 18APR2024 14:50:52 16.9N 94.0W ML=4.1 EMSC OAXACA, MEXICO
O: 18APR2024 12:09:42 15.1N 94.1W mb=4.4 EMSC OFFSHORE CHIAPAS, MEXICO
O: 18APR2024 17:15:11 15.8N 94.1W ML=4.0 EMSC OFFSHORE CHIAPAS, MEXICO
P: 16APR2024 162090 15.0N 94.0W 3.5-5.5 AAAAA Chiapas, Mexico
O: 18APR2024 12:05:05 18.0N 67.0W MD=3.2 EMSC PUERTO RICO
O: 18APR2024 16:28:18 18.2N 68.4W MD=3.5 EMSC MONA PASSAGE, DOMINICAN REPUBL
P: 17APR2024 162106 18.0N 68.0W 3.4-4.9 AAAAA Puerto Rico
O: 19APR2024 03:30:00 18.5N 73.6W ML=3.0 EMSC HAITI REGION
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 BBCAA Bahamas/No. Caribbean
O: 19APR2024 01:21:48 18.6N 69.0W ML=3.4 EMSC DOMINICAN REPUBLIC
P: 17APR2024 162106 18.0N 68.0W 3.4-4.9 AAAAA Puerto Rico
O: 18APR2024 20:48:58 21.3S 70.3W mb=4.5 EMSC OFFSHORE ANTOFAGASTA, CHILE
P: 16APR2024 162282 22.0S 69.0W 4.0-5.4 AAAAA Coast No. Chile
NEIC reported this earthquake of M 4.5 in Northern Chile was felt with intensity up to III in the area(s) of Northern Chile in Tocopilla.
O: 18APR2024 07:53:48 23.3S 69.2W mb=4.5 EMSC ANTOFAGASTA, CHILE
P: 16APR2024 162282 22.0S 69.0W 4.0-5.4 ABAAA Coast No. Chile
O: 18APR2024 11:57:30 27.8S 66.9W ML=4.2 EMSC CATAMARCA, ARGENTINA
P: 19APR2024 162281 28.0S 68.0W 4.0-5.5 AAAAA Argentina
O: 18APR2024 22:15:41 26.0N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:58:55 26.1N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 16:13:42 26.1N 110.9W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 07:39:39 26.3N 110.6W mw=5.2 ANSS ENE of Loreto Mexico
O: 18APR2024 22:27:53 26.1N 110.8W ML=3.8 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:53:24 26.2N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:05:34 26.2N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:09:08 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 18APR2024 11:14:09 26.2N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 11:47:31 26.2N 110.7W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 12:38:51 26.2N 110.7W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 13:33:41 26.2N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 22:29:09 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 19APR2024 01:26:37 26.2N 110.6W ML=4.3 EMSC GULF OF CALIFORNIA
O: 19APR2024 04:30:24 26.2N 110.6W ML=4.3 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:19:26 26.3N 110.3W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:16:03 26.3N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 18APR2024 15:12:40 26.3N 110.4W Mw=5.6 EMSC GULF OF CALIFORNIA
O: 19APR2024 01:54:54 26.3N 110.5W ML=4.3 EMSC GULF OF CALIFORNIA
O: 18APR2024 07:39:41 26.4N 110.5W Mw=5.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 10:49:55 26.4N 110.5W ML=3.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 09:49:23 26.5N 110.3W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 16:04:00 25.8N 110.6W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 15:12:38 26.2N 110.5W mw=5.6 ANSS ENE of Loreto Mexico
P: 15APR2024 162115 25.0N 113.0W 3.5-5.1 BABAA Gulf of California
P: 24APR2024 162381 26.0N 110.0W 3.5-5.1 CAAAA Gulf of California
AFRICA AND EUROPE
O: 18APR2024 18:43:29 40.1N 36.0E Mw=4.0 EMSC CENTRAL TURKEY
O: 18APR2024 19:31:45 40.1N 36.0E Mw=4.4 EMSC CENTRAL TURKEY
O: 18APR2024 21:09:55 40.1N 36.0E Mw=4.1 EMSC CENTRAL TURKEY
O: 18APR2024 15:11:25 40.0N 36.0E Mw=5.6 EMSC CENTRAL TURKEY
O: 18APR2024 15:11:25 40.0N 36.0E mw=5.6 ANSS W of Sulusaray Turkey
P: 23APR2024 162479 41.0N 36.0E 3.5-5.3 BAAAA No. Turkey/Black Sea
O: 19APR2024 06:30:37 34.3N 4.7W mb=3.8 EMSC MOROCCO
P: 17APR2024 162149 35.0N 3.0W 3.5-4.9 AABAA Morocco/Spain
O: 19APR2024 01:42:17 53.0N 1.6W ML=2.5 EMSC ENGLAND, UNITED KINGDOM
P: 11APR2024 162250 54.0N 2.0W 3.0-4.6 CAAAA United Kingdom
SOUTHWEST PACIFIC
O: 18APR2024 14:59:41 19.7S 172.7W mb=4.6 EMSC TONGA REGION
P: 18APR2024 162290 20.0S 174.0W 4.0-5.8 AABAA Tonga Islands
O: 19APR2024 02:23:17 24.6S 176.7W mb=5.2 EMSC SOUTH OF FIJI ISLANDS
P: 14APR2024 162291 25.0S 180.0W 4.0-5.5 BACAA Tonga Islands
OCEAN RIDGES
O: 18APR2024 08:26:13 43.8S 16.1W MB=5.2 ANSS SOUTHERN MID-ATLANTIC RIDGE"
NEIC reported this earthquake of M 5.2 in Southern Mid-Atlantic Ridge was felt with intensity up to III in the area(s) of Southern Mid-Atlantic Ridge.
O: 19APR2024 04:22:12 58.9S 25.2W mb=4.6 EMSC SOUTH SANDWICH ISLANDS REGION
P: 20APR2024 162313 61.0S 26.0W 4.0-5.7 ABAAA Southern Ocean
ZEALANDIA AND AUSTRALIA REGION
O: 18APR2024 11:09:00 36.1S 179.6W mb=4.9 EMSC EAST OF NORTH ISLAND, N.Z.
O: 18APR2024 11:08:57 36.1S 179.6W mb=4.9 ANSS Hicks Bay New Zealand
O: 18APR2024 11:09:06 35.9S 179.5E MS=5.4 GEONET North Island, New Zealand
P: 14APR2024 162298 37.0S 180.0W 3.5-5.1 AAAAA E. of North Islands N.Z.
EMSC reported this earthquake of M 4.9 in New Zealand was felt with intensity up to III in the area(s) of New Zealand in Opotiki.
GEONET reported it with M 5.4 was lightly felt in North Island, New Zealand by a number of respondents.
JAPAN AND KURIL ISLANDS
O: 18APR2024 09:29:16 22.8N 143.2E Mw=5.4 EMSC VOLCANO ISLANDS, JAPAN REGION
O: 18APR2024 09:29:16 22.8N 143.3E mw=5.4 ANSS Volcano Islands Japan region"
P: 18APR2024 162127 23.0N 144.0E 4.0-5.4 AAAAA Volcano Islands
O: 19APR2024 00:33:23 36.2N 139.8E mb=4.5 EMSC EASTERN HONSHU, JAPAN
P: 21APR2024 162430 37.0N 141.0E 4.0-5.6 AAAAA Off East Coast Honshu
NEIC reported this earthquake of M 4.5 in SE Honshu, Japan was felt with intensity up to III in the area(s) of SE Honshu, Japan in Fujioka.
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 18APR2024 20:56:42 36.6N 121.2W MD=2.5 EMSC CENTRAL CALIFORNIA
P: 17APR2024 162136 36.7N 121.4W 2.5-4.5 AAAAA 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 Pinnacles.
O: 18APR2024 19:19:18 35.5N 118.5W Mw=4.2 EMSC CENTRAL CALIFORNIA
O: 18APR2024 20:15:09 35.5N 118.5W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 18APR2024 20:34:26 35.5N 118.5W ML=2.4 EMSC CENTRAL CALIFORNIA
O: 18APR2024 21:20:33 35.5N 118.5W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 19APR2024 04:51:41 35.5N 118.5W ML=3.0 EMSC CENTRAL CALIFORNIA
O: 18APR2024 19:19:18 35.5N 118.5W mw=4.3 ANSS km S of Bodfish
P: 19APR2024 162173 35.6N 118.4W 2.5-4.7 AAAAA So. California
O: 19APR2024 02:23:55 38.1N 118.0W ML=2.0 EMSC NEVADA
P: 19APR2024 162133 38.0N 118.8W 2.5-4.7 AAAAA California/Nevada area
O: 18APR2024 13:21:25 40.0N 121.3W MD=2.6 EMSC NORTHERN CALIFORNIA
O: 18APR2024 11:28:27 40.2N 121.1W MD=2.7 EMSC NORTHERN CALIFORNIA
P: 20APR2024 162211 40.2N 121.2W 2.5-4.7 AAAAA Northern California
NEIC reported this earthquake of M 2.7 in Northern California was felt with intensity up to III in the area(s) of Northern California in Prattville.
O: 18APR2024 09:33:15 40.4N 125.6W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 14APR2024 162212 40.5N 125.8W 2.5-4.8 BAAAA Off Coast of No. Calif
P: 16APR2024 162213 40.9N 126.3W 2.5-4.9 AAAAA Off Coast of No. Calif
NEIC reported this earthquake of M 3.4 off the coast of Northern California was felt with intensity up to III in the area(s) of Northern California in Petrolia.
ALASKA
O: 18APR2024 20:31:48 62.2N 149.7W ML=3.6 EMSC CENTRAL ALASKA
O: 18APR2024 21:19:38 62.3N 150.8W ML=3.3 EMSC CENTRAL ALASKA
P: 14APR2024 162258 62.9N 150.2W 3.2-4.9 BAAAA Central Alaska
NEIC reported this earthquake of M 3.6 in Central Alaska was felt with intensity up to III in the area(s) of Central Alaska in Susitna North.
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
NEIC reported an earthquake of M 1.7 in Oregon was felt with intensity up to III in the area(s) of Oregon in Wapanitia.
O: 18APR2024 09:18:23 50.0N 130.2W MB=3.8 ECAN OF HOLBERG, BC
O: 18APR2024 07:36:37 50.0N 130.2W MB=3.5 ECAN OF HOLBERG, BC
O: 18APR2024 08:40:12 50.3N 129.9W mb=4.1 ANSS Port McNeill Canada
O: 18APR2024 06:41:42 49.9N 130.2W MB=4.4 ECAN OF HOLBERG, BC
P: 14APR2024 162233 50.6N 130.5W 3.0-5.0 BAAAA British Colombia
ROCKY MOUNTAINS REGION
O: 18APR2024 17:29:38 31.6N 104.3W ML=2.0 EMSC WESTERN TEXAS
O: 19APR2024 03:43:00 31.7N 104.3W ML=2.5 EMSC WESTERN TEXAS
O: 18APR2024 16:12:24 32.4N 102.1W ML=2.7 EMSC WESTERN TEXAS
O: 19APR2024 00:33:29 31.5N 103.9W ML=2.0 EMSC WESTERN TEXAS
P: 17APR2024 162163 31.2N 103.5W 2.0-3.9 AAAAA SW U.S.A
O: 18APR2024 15:15:31 43.1N 110.4W ML=2.6 EMSC WYOMING
P: 17APR2024 162226 43.2N 111.0W 2.0-4.3 AAAAA Yellowstone/Wyoming
NEIC reported this earthquake of M 2.6 in Wyoming was felt with intensity up to III in the area(s) of Wyoming in Bondurant.
EASTERN U.S./CANADA
O: 19APR2024 01:04:53 40.7N 74.8W ml=1.0 ANSS Califon New Jersey
O: 18APR2024 14:17:00 40.7N 74.7W ml=1.4 ANSS Gladstone New Jersey
O: 18APR2024 13:07:17 40.7N 74.7W ml=1.5 ANSS Whitehouse Station New Jersey
O: 18APR2024 11:17:52 40.7N 74.8W ml=0.7 ANSS Lebanon New Jersey
O: 18APR2024 08:50:08 40.7N 74.8W ML=0.8 ANSS CALIFON NEW JERSEY
P: 21APR2024 162474 40.0N 75.0W 2.0-4.2 BAAAA New England
NEIC reported these earthquakes of M 1.0, M 1.5 and M 1.4 in New Jersey were felt with intensity up to III in the area(s) of New Jersey in Califon.
O: 19APR2024 01:05:52 38.4N 89.1W ML=2.2 EMSC ILLINOIS
O: 19APR2024 01:05:52 38.4N 89.1W mb=2.2 ANSS E of Richview Illinois
P: 7APR2024 161880 38.0N 89.0W 2.0-4.3 DAAAA New Madrid area
P: 15APR2024 162153 38.0N 91.0W 2.0-4.3 BABAA New Madrid area
O: 18APR2024 08:15:08 36.5N 89.5W MD=1.6 ANSS ESE OF MARSTON MISSOURI
P: 21APR2024 162422 36.5N 89.6W 2.0-3.9 BAAAA New Madrid area
This epicenter in Missouri falls on the path of total eclipse of the sun on
April 8. The eclipse was visible at this epicenter around 18:58-19:00 UT for
4 minutes 11 seconds. It is likely that stresses associated with the eclipse
have helped promote this, and a number of other minor earthquakes along
the eclipse path in the past two weeks.
HAWAII
No earthquakes of M>=3 were located in Hawaii.
STRONG EARTHQUAKE SHAKES SHIKOKU, JAPAN
EARTHQUAKE SUMMARY FOR APRIL 17, 2024
The strongest earthquake in the world today damaged areas of Shikoku and Kyushu, Japan. NEIC reported this earthquake of M 6.3 in Shikoku, Japan was felt with intensity up to IX in the area(s) of Shikoku, Japan in Uwajima. EMSC reported to strong to damaging shaking in Shikoku at Beppu, Kumamoto, Hakata, Chuo, Kita, Minami, Japan. Minor damage throughout the area was reported by world press but no major damage or casualties were reported. The last earthquake in Shikoku, Japan within about 200 km of this epicenter with M>=6.3 occurred on January 21, 2022 and prior to that as an M 7.0 on April 15, 2016. On January 21, 2022 this
summary noted:
"The strongest of today's earthquakes - of M 6.3-6.6 shook the area of Shikoku, Japan today. NEIC reported maximum intensity VI in Miyazaki and Oita; V in Ehime, and Kumamoto Prefectures, Japan. Reuters reported this event injured more than 13 people and did considerable damage to buildings, water pipes and roads.
Shaking with moderate intensity was reported in Oita and Miyazaki Prefectures with 5+ on the Japanese intensity scale (about VIII MMI). There was no reported damage to nuclear power plants in the area and no tsunami was reported. The last earthquake of M>=6.3 in Shikoku within about 200 km of this epicenter was an M 7.0 on April 15, 2016 and prior to that an M 6.6 on March 20, 2005. In the past 30 years the only similar activity in the area occurred in late 1996 with a series of events of M 6.6, 7.0 and 6.9. Aftershocks of M 4.6 and 4.9 were reported felt with intensity II-III in Yamguchi and Nagasaki (VI) Prefectures, Japan. Today's event occurred within about an hour of local solar midnight and may have been promoted by SFE as well as by high tidal stresses associated with the Full Moon of January 17 which maximize near this hour." (January 21, 2022)
NEIC reported today’s earthquake of M 6.3 in Shikoku, Japan was felt with intensity up to IX in the area(s) of Shikoku, Japan in Uwajima.
Forecast 162147 had expected today's event in this region was likely around April 14, 2024. This epicenter is located at 145 degrees from the M 6.7 in
Brazil of January 20, 2024 and may have been promoted by energy from that source.
O: 17APR2024 14:14:45 33.2N 132.4E Mw=6.2 EMSC SHIKOKU, JAPAN
O: 17APR2024 14:27:30 33.2N 132.3E ML=4.3 EMSC SHIKOKU, JAPAN
O: 17APR2024 14:14:45 33.2N 132.4E mw=6.3 ANSS WSW of Uwajima Japan
P: 14APR2024 162147 34.0N 132.0E 3.5-5.0 BAAAA Kyushu, Japan area
Moderately strong earthquakes of M 5.4-5.5 each also occurred today in Tonga and in Nicaragua. The earthquake in Tonga may set off a new round of stronger events on this arc with the coming full moon of April 23 after a period of relative quiet in the region which began in late January 2024. This event occurred 10 minutes after an M 5.5 in Nicaragua. These two epicenters are separated by 94 degrees. The P-wave from Nicaragua was located in Tonga at the event there and may have helped to promote that subsequent event. Forecast 162290 had expected today's event in Tonga was likely within about 25 km around April 16. This epicenter is located at the fifth node (72 degrees) from the M 7.4 from the M 7.4 in Taiwan of April 2, 2024 and may have been promoted by energy from that source.
O: 17APR2024 21:31:48 21.3S 177.9W mw=5.4 ANSS W of Houma Tonga
O: 17APR2024 21:31:50 21.2S 177.9W MW=5.4 EMSC FIJI REGION
P: 16APR2024 162290 21.0S 178.0W 4.0-5.9 AAAAA Tonga Islands
The earthquake in Nicaragua was the strongest within about 200 km of that epicenter since an M 6.7 on April 21, 2022. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.7 in Nicaragua. NEIC reported it was felt with maximum intensity V in El Crucero, Managua, Diriamba, La Paz Centro Leon, and Ciudad Sandino with IV in El Jicaro, San Rafael del Sur, Villa El Carmen, Nagarote, Jinotepa Carazo.
...
The last earthquake in Nicaragua within about 250 km of today's epicenter with equal or larger magnitude occurred on September 5, 2012 with M 7.6 and prior to that an M 7.0 on October 9, 2004. Forecast 142703 had expected today's event within about 100 km was likely around April 19." (April 21, 2022)
NEIC reported this earthquake of M 5.5 in Nicaragua was felt with intensity up to IV in the area(s) of Nicaragua in Cardenas. EMSC reported strong shaking in Nicaragua at Cidad Sandino, Nagarote, and in Costa Rica at La Asuncion, San Antonio, Curridabat, Aserri, Dulce Nombre, Puerto Cortes.
Forecast 162101 had expected today's event in Nicaragua was likely within about
50 km around April 17, 2024. This epicenter is located at 145 degrees from the M 6.8 in the Talaud Islands of January 8, 2024 and Mindanao of December 2, 2023 and at 104 degrees from the M 6.7 in the Loyalty Islands of March 27, 2024 and may have been promoted by energy from those sources.
O: 17APR2024 21:21:54 11.2N 85.4W MW=5.5 EMSC NICARAGUA
O: 17APR2024 21:21:54 11.1N 85.3W mw=5.5 ANSS ESE of Cardenas Nicaragua
P: 17APR2024 162101 11.0N 86.0W 3.5-5.5 AAAAA Nicaragua
The strongest earthquake in the U.S. or Canada today was an M 4.9 in the area of Vancouver, British Columbia, Canada. NEIC reported it was felt with intensity III in Port McNeill, Canada. This activity began with an M 4.9 near local solar noon and may have been promoted by strong tidal stresses which maximize near this hour. The last earthquake within about 150 km of this epicenter in Vancouver Island area with M>=4.9 occurred on October 16, 2023. That event was probably an aftershock of an M 5.6 on September 17, 2023. At this time this summary had noted:
"The strongest earthquake in the U.S. or Canada today was an M 4.9 in the Vancouver Island area of British Columbia, Canada. NEIC reported it was felt with intensity V in British Columbia at Port Hardy, Prince Rupert and IV in Gresham, Oregon. Lesser shaking was reported in British Columbia in Vancouver, Victoria,; in Washington at Freeland, Seattle and in Portland, Oregon. It is likely that this event was promoted by the new moon and solar eclipse of October 14, 2023 which was visible at this epicenter at 16:14 UT - the beginning of the eclipse ...
...
A similar earthquake of M 5.6 hit Vancouver Island with the last new moon on
September 17, 2023. At the time this summary noted:
"The strongest earthquake in the world today was an M 5.6-5.9 west of Vancouver Island, British Columbia, Canada. NEIC reported it was felt with light shaking I-III in British Columbia at Parksville, Gibsons, Vancouver and perhaps as far as Oregon and Northern California. Foreshocks of M 4.5 and 4.3 preceded the mainshock and may have been felt lightly in the epicentral area." (October 16, 2023)
A lunar eclipse occurred with the last full moon of March 25, 2024 and was followed the next day by an M 5.8 in this area off the coast of Oregon. This may be repeated with the next full moon of April 23, 2024. The expected seismicity with this coming full moon has been detailed in this and previous issues of this summary as:
"The full moon will arrive on April 23, 2024 at 23:49 UT. Longitudes which are at local solar midnight at this time are located at about 5 East while those at local solar noon are near 175 West. In the east these include most of western Europe and Iceland while in the west areas of the western Aleutians, Alaska, Hawaii, Tonga/Fiji/Kermadec Islands, New Zealand to the Balleny Islands and portions of the Pacific-Antarctic Ridge are included. These are the most likely areas to see significant tidal triggering with this full moon. Other areas may also see tidal promotion in the next week especially at times of large solar flares and near local solar midnight and solar noon. The likelihood of a strong associated earthquake with this full moon are moderate to high." (April 16-18, 2024)
Forecast 162233 had expected these events were likely within about 50 km
in the Vancouver Island area was likely around April 14.
O: 18APR2024 06:06:05 50.3N 129.8W Mw=4.9 EMSC VANCOUVER ISLAND, CANADA REGION
O: 18APR2024 06:41:40 50.4N 130.8W mb=4.6 EMSC VANCOUVER ISLAND, CANADA REGION
O: 18APR2024 06:06:05 50.3N 129.9W mr=4.9 ANSS Port McNeill Canada
O: 17APR2024 21:46:15 50.2N 129.9W mw=4.9 ANSS Port McNeill Canada
O: 18APR2024 06:06:08 50.1N 130.1W MB=4.3 ECAN W OF PORT ALICE, BC
O: 17APR2024 21:46:13 50.0N 130.1W MB=4.3 ECAN OF HOLBERG, BC
O: 17APR2024 20:25:01 50.0N 130.2W MB=3.0 ECAN OF HOLBERG, BC
O: 17APR2024 21:46:15 50.2N 130.0W MW=4.9 EMSC VANCOUVER ISLAND, CANADA REGIO
P: 14APR2024 162233 50.6N 130.5W 3.0-5.0 BAAAA British Colombia
An M 5.2-5.3 also occurred today in the Gulf of California, Mexico. This follows a strong regional foreshock sequence. Earthquakes in this area of M 5.3, M 4.9 and M 4.7 in the Gulf of California were felt with intensity up to VIII in the area(s) of the Gulf of California in Loreto and Pozo Dulce. In the previous issue of this summary this swarm was reported as:
"A series of moderate earthquakes occurred today in the Gulf of California, Mexico today. The largest of these was an M 4.9. NEIC reported it was felt with intensity up to III in Loreto, Mexico. EMSC reported light shaking in the epicentral area. The last earthquake within about 200 km of today's epicenter with M>=4.9 occurred on February 15, 2024 (M 5.1) with events of 4.9 on May 10, 2023 and M 5.4 on September 28, 2022. The current activity in the Gulf of California began with a series of light to moderate earthquakes on April 7 and April 8 with the solar eclipse of April 8. This epicenter is near the epicenter of greatest solar eclipse with this event and was expected to see enhanced seismicity at this time. A stronger – perhaps a moderately strong event - is possible as this swarm continues in the next several days." (April 17, 2024)
NEIC reported today's earthquakes of M 4.9 and M 4.7 in the Gulf of California were felt with intensity up to VIII in the area(s) of the Gulf of California in Loreto.
Forecast 162114 and 162115 had expected this activity in the Gulf of California was likely in mid-April. This activity is at 108 degrees from the M 7.4 in Taiwan of April 2 and at 105 degrees from the New Guinea quake of March 23 (M 6.9) and may have been promoted by energy from those sources. These events are also located at the fourth node (90 degrees) from the M 7.4 in Western Honshu, Japan of January 1, 2024 and the Loyalty Islands of M 7.1 of December 7, 2023 and at the seventh node (51 degrees) from the M 6.7 in Brazil of January 20, 2024 and may have been promoted by energy from those sources.
O: 17APR2024 16:12:01 26.0N 110.9W ML=4.2 EMSC GULF OF CALIFORNIA
O: 17APR2024 09:43:33 26.1N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 17APR2024 07:07:40 26.2N 110.8W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 08:10:20 26.2N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 17APR2024 08:32:13 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 08:42:05 26.2N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 17APR2024 13:52:46 26.3N 110.6W mw=4.7 ANSS ENE of Loreto Mexico
O: 17APR2024 11:58:07 26.2N 110.6W mw=4.9 ANSS ENE of Loreto Mexico
O: 17APR2024 11:58:08 26.2N 110.7W Mw=4.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 20:03:35 26.2N 110.5W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 20:40:39 26.2N 110.6W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 21:35:44 26.2N 110.5W ML=4.0 EMSC GULF OF CALIFORNIA
O: 17APR2024 22:01:02 26.2N 110.7W ML=4.4 EMSC GULF OF CALIFORNIA
O: 18APR2024 00:22:45 26.2N 110.6W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 04:22:47 26.2N 110.5W Mw=4.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 07:39:39 26.3N 110.6W Mw=5.2 ANSS GULF OF CALIFORNIA
O: 17APR2024 08:43:26 26.3N 110.7W ML=3.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 13:52:46 26.3N 110.7W Mw=4.7 EMSC GULF OF CALIFORNIA
O: 17APR2024 21:10:27 26.3N 110.5W ML=3.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 22:19:13 26.3N 110.5W ML=4.0 EMSC GULF OF CALIFORNIA
O: 17APR2024 22:25:39 26.3N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 01:34:56 26.3N 110.5W ML=4.1 EMSC GULF OF CALIFORNIA
O: 18APR2024 00:27:04 26.4N 110.3W ML=4.0 EMSC GULF OF CALIFORNIA
P: 15APR2024 162115 28.0N 112.0W 3.5-5.1 BBBAA Gulf of California
A rare earthquake of M 3.0 occurred on April 13, 2024 in Nova Scotia, Canada. The total eclipse of the sun was visible at this epicenter on April 8, 2024 at 19:40 UT. No earthquakes of M>=3 have been located within about 200 km of this epicenter in Nova Scotia by NEIC in the past 35 years. An M 3.9 was located about 250 km southeast of today's epicenter on August 6, 2018 – the only such regional earthquake recorded in the past three decades. It appears likely that this event was promoted by strong tidal stresses with the eclipse.
O: 13APR2024 23:13:16 45.7N 59.4W MB=3.0 ECAN OF LOUISBOURG, NS
The swarm of earthquakes in southern Texas near Stockdale, Falls City and Nixon continued today with events of M 2.6 and 2.7 among others. This swarm began yesterday and was reported in this summary in part as:
"A strong series of light earthquakes occurred today in Southern Texas near Nixon and Stockdale. The largest of today's events in this region was an M 3.2. The last earthquakes of equal or greater magnitude in this region of Southern Texas was an M 4.7 on February 17, 2024 with aftershocks of M 4.0 on February 22 and M 3.4 on February 23, 2024.
...
Today's event of M 3.2 lies under the path of the total solar eclipse of April 8 and was probably promoted by energy from that tidal alignment." (April 17, 2024)
Forecast 162122 had expected this event was likely around April 14 within about 100 km of today's epicenter. This activity is at the third node (120 degrees) from the M 6.7 on March 3, 2024 and at 103 degrees from the M 6.9 in Mariana Islands and the M 7.1 in the Loyalty Islands of April 4, 2004 and December 7, 2003 and may have been promoted by energy from that source.
O: 18APR2024 02:02:41 29.1N 97.8W ML=2.7 EMSC SOUTHERN TEXAS
O: 18APR2024 02:31:00 29.1N 97.8W ml=2.1 ANSS SE of Stockdale Texas
O: 18APR2024 02:02:41 29.1N 97.8W ml=2.6 ANSS Falls City Texas
O: 18APR2024 00:02:48 29.1N 97.8W ml=1.8 ANSS SSW of Nixon Texas
O: 18APR2024 02:31:00 29.1N 97.8W ML=2.1 EMSC SOUTHERN TEXAS
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 BBAAA Northern Mexico
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: 17APR2024 09:17:10 23.9N 121.7E MW=5.0 EMSC TAIWAN
P: 13APR2024 162126 24.0N 121.0E 4.0-5.4 BAAAA Taiwan
NEIC reported this earthquake of M 5.0 in Taiwan was felt with intensity up to IV in the area(s) of Taiwan in Hualien City.
O: 17APR2024 12:21:56 33.6N 81.8E MB=4.9 EMSC WESTERN XIZANG
P: 15APR2024 162186 30.0N 82.0E 3.8-5.4 ACAAA Xizang
O: 18APR2024 00:23:49 41.8N 77.9E MB=4.3 EMSC KYRGYZSTAN
P: 16APR2024 162198 41.0N 78.0E 4.0-5.8 AAAAA Kirgizstan/Xinjiang
EMSC reported this earthquake of M 4.0 in Xinjiang, China was felt with intensity up to III in the area(s) of Xinjiang, China in Kazakhstan at Talgar, Almaty.
NEIC reported this earthquake of M 4.3 in Southern Xinjiang, China was felt with intensity up to V in the area(s) of Southern Xinjiang, China in Aykol.
INDONESIA AND PHILIPPINES
O: 17APR2024 13:13:56 1.7N 124.4E ML=4.0 EMSC MINAHASA, SULAWESI, INDONESIA
O: 17APR2024 20:34:38 1.6N 124.3E ML=4.3 EMSC MINAHASA, SULAWESI, INDONESIA
P: 17APR2024 162057 1.0N 123.0E 4.0-5.7 AABAA Mindanao, Philippines
P: 19APR2024 162057 0.0N 124.0E 4.0-5.8 ABAAA Mindanao, Philippines
O: 17APR2024 21:15:59 2.7N 125.7E ML=4.0 EMSC KEPULAUAN SANGIHE, INDONESIA
P: 16APR2024 162058 3.0N 126.0E 4.0-5.5 AAAAA Mindanao, Philippines
BMG reported an earthquake of M 5.0 South of Java, Indonesia was felt with intensity up to II in the area(s) of Kab. Gresik, Sragen, Grobogan, Blora, Rembang, Pati, Kudus, Jepara, Pacitan, Lumajang, Sidoarjo, Bojonegoro, Tuban, Lamongan, Bangkalan, Sampag, Pamekasan, Sumenep and Sirabaua.
PHIVOLCS reported an earthquake of M 5.0 in Mindanao, Philippines was felt with intensity up to IV in the area(s) of Mindanao, Philippines in General Luna; III in Libjo, Dinagat Islands, Dapa, Pilar, San Benito, Santa Monica Surigao del Norte with intensity II in Surigao del Sur, Philippines.
CENTRAL AND SOUTH AMERICA
O: 17APR2024 20:50:01 6.8N 73.1W MB=4.4 EMSC NORTHERN COLOMBIA
P: 19APR2024 162052 7.0N 73.0W 4.0-5.7 AAAAA Colombia
NEIC reported this earthquake of M 4.4 in Colombia was felt with intensity up to III in the area(s) of Colombia in Curiti.
O: 18APR2024 05:07:14 7.5N 78.5W ML=4.0 EMSC PANAMA
P: 17APR2024 162052 5.0N 76.0W 4.0-5.4 ACBAA Colombia
O: 17APR2024 21:21:54 11.2N 85.4W MW=5.5 EMSC NICARAGUA
O: 17APR2024 21:21:54 11.1N 85.3W mw=5.5 ANSS ESE of Cardenas Nicaragua
P: 17APR2024 162101 11.0N 86.0W 3.5-5.5 AAAAA Nicaragua
O: 17APR2024 14:38:23 11.9N 88.7W ML=4.0 EMSC OFF COAST OF CENTRAL AMERICA
P: 18APR2024 162102 12.0N 88.0W 3.5-5.5 AAAAA Nicaragua
O: 17APR2024 18:55:15 15.6N 95.1W ML=4.0 EMSC OFFSHORE OAXACA, MEXICO
P: 16APR2024 162090 15.0N 94.0W 3.5-5.5 AAAAA Chiapas, Mexico
O: 17APR2024 10:02:00 16.2N 99.3W ML=4.1 EMSC OFFSHORE GUERRERO, MEXICO
P: 15APR2024 162105 17.0N 100.0W 3.5-5.3 AAAAA Oaxaca, Mexico
O: 18APR2024 01:03:28 16.9N 95.1W ML=4.1 EMSC OAXACA, MEXICO
P: 15APR2024 162105 17.0N 96.0W 3.5-5.6 BAAAA Oaxaca, Mexico
O: 17APR2024 13:15:40 17.9N 66.5W MD=3.1 EMSC PUERTO RICO REGION
P: 18APR2024 162106 18.0N 66.0W 3.4-5.2 AAAAA Puerto Rico
O: 18APR2024 06:55:42 17.9N 101.1W ML=4.0 EMSC GUERRERO, MEXICO
O: 18APR2024 05:43:21 18.8N 102.8W ML=4.0 EMSC MICHOACAN, MEXICO
P: 16APR2024 162099 19.0N 101.0W 3.5-5.3 AABAA Michoacan, Mexico
O: 17APR2024 09:56:15 19.6N 71.4W ML=3.2 EMSC DOMINICAN REPUBLIC
O: 17APR2024 08:14:08 18.9N 70.4W ML=3.0 EMSC DOMINICAN REPUBLIC
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 ABAAA Bahamas/No. Caribbean
O: 17APR2024 07:42:04 19.2N 65.3W MD=3.5 EMSC PUERTO RICO REGION
P: 17APR2024 162110 20.0N 65.0W 3.0-4.6 AAAAA Bahamas/No. Caribbean
O: 17APR2024 22:11:19 27.8N 112.2W ML=3.3 EMSC GULF OF CALIFORNIA
P: 15APR2024 162115 28.0N 112.0W 3.5-5.1 AAAAA Gulf of California
O: 17APR2024 16:12:01 26.0N 110.9W ML=4.2 EMSC GULF OF CALIFORNIA
O: 17APR2024 09:43:33 26.1N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 17APR2024 07:07:40 26.2N 110.8W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 08:10:20 26.2N 110.6W ML=3.7 EMSC GULF OF CALIFORNIA
O: 17APR2024 08:32:13 26.2N 110.6W ML=3.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 08:42:05 26.2N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 17APR2024 13:52:46 26.3N 110.6W mw=4.7 ANSS ENE of Loreto Mexico
O: 17APR2024 11:58:07 26.2N 110.6W mw=4.9 ANSS ENE of Loreto Mexico
O: 17APR2024 11:58:08 26.2N 110.7W Mw=4.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 20:03:35 26.2N 110.5W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 20:40:39 26.2N 110.6W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 21:35:44 26.2N 110.5W ML=4.0 EMSC GULF OF CALIFORNIA
O: 17APR2024 22:01:02 26.2N 110.7W ML=4.4 EMSC GULF OF CALIFORNIA
O: 18APR2024 00:22:45 26.2N 110.6W ML=4.0 EMSC GULF OF CALIFORNIA
O: 18APR2024 04:22:47 26.2N 110.5W Mw=4.7 EMSC GULF OF CALIFORNIA
O: 18APR2024 07:39:39 26.3N 110.6W Mw=5.2 ANSS GULF OF CALIFORNIA
O: 17APR2024 08:43:26 26.3N 110.7W ML=3.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 13:52:46 26.3N 110.7W Mw=4.7 EMSC GULF OF CALIFORNIA
O: 17APR2024 21:10:27 26.3N 110.5W ML=3.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 22:19:13 26.3N 110.5W ML=4.0 EMSC GULF OF CALIFORNIA
O: 17APR2024 22:25:39 26.3N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 18APR2024 01:34:56 26.3N 110.5W ML=4.1 EMSC GULF OF CALIFORNIA
O: 18APR2024 00:27:04 26.4N 110.3W ML=4.0 EMSC GULF OF CALIFORNIA
P: 15APR2024 162115 28.0N 112.0W 3.5-5.1 BBBAA Gulf of California
AFRICA AND EUROPE
O: 17APR2024 23:35:47 40.1N 36.0E mb=4.1 EMSC CENTRAL TURKEY
O: 17APR2024 22:07:02 40.0N 36.1E MW=4.6 EMSC CENTRAL TURKEY
P: 17APR2024 162181 38.0N 36.0E 3.5-4.9 ABAAA Turkey
EMSC reported these earthquakes of M 4.0 and M 4.6 in Eastern Turkey were felt with intensity up to III in the area(s) of Eastern Turkey in Emek, Kucukminare, Fatih, Kardesler, Liman.
SOUTHWEST PACIFIC
O: 17APR2024 15:35:32 17.8S 178.5W MB=4.3 EMSC FIJI REGION
P: 17APR2024 162276 19.0S 178.0W 4.0-5.4 ABAAA Tonga Islands
O: 17APR2024 21:31:48 21.3S 177.9W mw=5.4 ANSS W of Houma Tonga
O: 17APR2024 21:31:50 21.2S 177.9W MW=5.4 EMSC FIJI REGION
P: 16APR2024 162290 21.0S 178.0W 4.0-5.9 AAAAA Tonga Islands
OCEAN RIDGES
O: 17APR2024 08:04:42 62.9S 148.1E MB=5.0 EMSC BALLENY ISLANDS REGION
O: 17APR2024 08:04:42 62.9S 148.4E MB=5.0 ANSS BALLENY ISLANDS REGION"
P: 7APR2024 162043 60.0S 160.0E 3.0-5.0 CCCAA Macquarie Island
ZEALANDIA AND AUSTRALIA REGION
O: 18APR2024 05:53:32 34.1S 179.1E ML=4.0 EMSC SOUTH OF KERMADEC ISLANDS
P: 17APR2024 162303 32.0S 180.0E 4.0-5.4 ABAAA So. Kermadec Islands
JAPAN AND KURIL ISLANDS
O: 17APR2024 14:14:45 33.2N 132.4E Mw=6.2 EMSC SHIKOKU, JAPAN
O: 17APR2024 14:27:30 33.2N 132.3E ML=4.3 EMSC SHIKOKU, JAPAN
O: 17APR2024 14:14:45 33.2N 132.4E mw=6.3 ANSS WSW of Uwajima Japan
P: 14APR2024 162147 34.0N 132.0E 3.5-5.0 BAAAA Kyushu, Japan area
O: 17APR2024 10:16:20 35.2N 136.9E MB=4.3 EMSC WESTERN HONSHU, JAPAN
P: 19APR2024 162155 35.0N 136.0E 3.5-5.0 AAAAA No. Honshu, Japan
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 17APR2024 15:56:21 33.7N 118.2W ML=2.5 EMSC SAN PEDRO CHANNEL, CALIFORNIA
P: 19APR2024 162173 35.6N 118.4W 2.5-4.7 ABAAA So. California
NEIC reported these earthquakes of M 2.6 and M 2.6 off the coast of Southern California were felt with intensity up to IV in the area(s) of Southern California in Long Beach and Rancho Palos Verdes.
NEIC reported they were felt with moderate shaking in California at Long Beach, Signal Hill, Lakewood, Carson, Torrance, Fontana, Tustin, Atascadero.
O: 17APR2024 07:27:39 34.4N 120.1W ML=2.0 EMSC SANTA BARBARA CHANNEL, CALIF.
P: 19APR2024 162172 34.9N 119.0W 2.5-4.4 AAAAA So. California
P: 23APR2024 162438 33.8N 119.7W 2.5-4.8 CAAAA So. California
O: 17APR2024 21:01:43 36.0N 115.1W ML=2.0 EMSC LAS VEGAS URBAN AREA, NEVADA
P: 19APR2024 162132 37.8N 115.8W 2.5-4.7 ABAAA California/Nevada area
O: 17APR2024 15:34:55 38.4N 122.6W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 17APR2024 162138 38.9N 122.8W 2.5-4.8 AAAAA 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 Kenwood.
O: 17APR2024 07:50:16 40.4N 120.0W ML=2.0 EMSC NEVADA
P: 20APR2024 162210 40.0N 120.9W 2.5-4.9 BAAAA Northern California
O: 17APR2024 17:02:10 40.4N 125.3W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 14APR2024 162212 40.5N 125.8W 2.5-4.8 BAAAA Off Coast of No. Calif
NEIC reported this earthquake of M 3.0 off the coast of Northern California was felt with intensity up to III in the area(s) of Northern California in Petrolia.
O: 18APR2024 02:36:07 41.3N 124.1W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 14APR2024 162212 40.5N 125.8W 2.5-4.8 BABAA Off Coast of No. Calif
ALASKA
No events of M>=3 were located in Alaska today.
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 18APR2024 06:06:05 50.3N 129.8W Mw=4.9 EMSC VANCOUVER ISLAND, CANADA REGION
O: 18APR2024 06:41:40 50.4N 130.8W mb=4.6 EMSC VANCOUVER ISLAND, CANADA REGION
O: 18APR2024 06:06:05 50.3N 129.9W mr=4.9 ANSS Port McNeill Canada
O: 17APR2024 21:46:15 50.2N 129.9W mw=4.9 ANSS Port McNeill Canada
O: 18APR2024 06:06:08 50.1N 130.1W MB=4.3 ECAN W OF PORT ALICE, BC
O: 17APR2024 21:46:13 50.0N 130.1W MB=4.3 ECAN OF HOLBERG, BC
O: 17APR2024 20:25:01 50.0N 130.2W MB=3.0 ECAN OF HOLBERG, BC
O: 17APR2024 21:46:15 50.2N 130.0W MW=4.9 EMSC VANCOUVER ISLAND, CANADA REGIO
ROCKY MOUNTAINS REGION
O: 17APR2024 10:42:25 31.7N 104.5W ML=2.0 EMSC WESTERN TEXAS
O: 17APR2024 13:53:20 31.7N 104.4W ML=2.1 EMSC WESTERN TEXAS
O: 18APR2024 03:47:54 31.6N 104.5W ML=2.3 EMSC WESTERN TEXAS
P: 17APR2024 162163 31.2N 103.5W 2.0-3.9 AAAAA SW U.S.A
EASTERN U.S./CANADA
O: 17APR2024 15:58:15 35.9N 95.1W ML=2.2 EMSC OKLAHOMA
O: 18APR2024 05:44:04 35.5N 96.8W ML=2.2 EMSC OKLAHOMA
P: 17APR2024 162180 36.0N 97.0W 2.0-4.1 AAAAA Southern Plains
NEIC reported this earthquake of M 2.2 in Oklahoma was felt with intensity up to III in the area(s) of Oklahoma in Sparks.
O: 17APR2024 20:43:07 35.9N 90.1W ML=2.8 EMSC ARKANSAS
P: 15APR2024 162152 36.3N 89.5W 2.0-4.1 AAAAA New Madrid area
P: 17APR2024 162151 35.0N 89.0W 2.0-3.9 AAAAA New Madrid area
NEIC reported this earthquake of M 2.8 in Arkansas was felt with intensity up to IV in the area(s) of Arkansas in Dell.
The solar eclipse of April 8 was observed at this epicenter. This earthquake
was probably promoted by strong tidal stresses associated with that eclipse.
O: 18APR2024 02:02:41 29.1N 97.8W ML=2.7 EMSC SOUTHERN TEXAS
O: 18APR2024 02:31:00 29.1N 97.8W ml=2.1 ANSS SE of Stockdale Texas
O: 18APR2024 02:02:41 29.1N 97.8W ml=2.6 ANSS Falls City Texas
O: 18APR2024 00:02:48 29.1N 97.8W ml=1.8 ANSS SSW of Nixon Texas
O: 18APR2024 02:31:00 29.1N 97.8W ML=2.1 EMSC SOUTHERN TEXAS
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 BBAAA Northern Mexico
O: 17APR2024 06:18:40 49.5N 66.9W MB=1.7 ECAN OF BAIE-TRINITé, QC
O: 16APR2024 20:22:09 61.1N 59.3W MB=4.0 ECAN OF NUUK, GL
O: 16APR2024 18:35:00 47.8N 70.0W MB=1.0 ECAN OF SAINT-SIMéON, QC
O: 16APR2024 11:01:09 47.4N 70.2W MB=0.7 ECAN OF LA POCATIèRE, QC
O: 15APR2024 21:34:01 48.9N 70.2W MB=2.0 ECAN OF SAINTE-ROSE-DU-NORD, QC
P: 14APR2024 162206 47.3N 70.5W 2.0-4.0 ABAAA New England
O: 14APR2024 14:36:23 45.8N 77.4W MB=1.4 ECAN OF PETAWAWA, ON
P: 13APR2024 162207 46.0N 74.0W 2.0-4.1 AACAA New York State
P: 13APR2024 162215 46.0N 81.0W 2.0-4.1 AACAA Ohio/Lake Erie
O: 14APR2024 08:48:09 46.7N 82.2W MB=2.4 ECAN OF SPANISH RIVER CARBONITE MINE, ON
O: 14APR2024 06:40:04 46.7N 82.3W MB=2.5 ECAN OF ELLIOT LAKE, ON
O: 14APR2024 11:05:28 46.7N 82.2W MB=2.3 ECAN OF SPANISH RIVER CARBONITE MINE,
P: 13APR2024 162215 46.0N 81.0W 2.0-4.1 AAAAA Ohio/Lake Erie
O: 14APR2024 05:02:29 45.7N 67.6W MB=1.7 ECAN OF MCADAM, NB
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 BBBAA Maine
O: 13APR2024 23:13:16 45.7N 59.4W MB=3.0 ECAN OF LOUISBOURG, NS
O: 13APR2024 06:26:14 73.4N 74.8W MB=1.9 ECAN OF POND INLET, NU
O: 13APR2024 15:47:37 71.9N 74.9W MB=2.2 ECAN OF POND INLET, NU
P: 9APR2024 161997 71.0N 75.0W 2.5-4.0 BAAAA Baffin/Davis Strait Canada
P: 9APR2024 161997 73.3N 73.5W 2.5-4.1 BAAAA Baffin/Davis Strait Canada
O: 13APR2024 10:13:56 46.6N 76.1W MB=1.5 ECAN OF GRAND-REMOUS, QC
P: 13APR2024 162207 46.0N 74.0W 2.0-4.1 AABAA New York State
O: 13APR2024 09:35:30 47.9N 71.5W MB=2.6 ECAN OF CHICOUTIMI - JONQUIèRE, QC
P: 14APR2024 162206 47.3N 70.5W 2.0-4.0 AAAAA New England
O: 17APR2024 16:40:04 40.7N 74.8W ML=1.1 ANSS CALIFON NEW JERSEY
P: 13APR2024 162206 40.0N 74.0W 2.0-4.3 BAAAA New England
P: 21APR2024 162474 40.0N 75.0W 2.0-4.2 BAAAA New England
NEIC reported this earthquake of M 1.1 in New Jersey was felt with intensity up to II in the area(s) of New Jersey in Califon.
HAWAII
No earthquakes of M>=3 were located in Hawaii.
SERIES OF MODERATE QUAKES IN CALIFORNIA; GULF OF CALIFORNIA
EARTHQUAKE SUMMARY FOR APRIL 16, 2024
A series of moderate earthquakes occurred today in the Gulf of California, Mexico today. The largest of these was an M 4.9. NEIC reported it was felt with intensity up to III in Loreto, Mexico. EMSC reported light shaking in the epicentral area. The last earthquake within about 200 km of today's epicenter with M>=4.9 occurred on February 15, 2024 (M 5.1) with events of 4.9 on May 10, 2023 and M 5.4 on September 28, 2022. The current activity in the Gulf of California began with a series of light to moderate earthquakes on April 7 and April 8 with the solar eclipse of April 8. This epicenter is near the epicenter of greatest solar eclipse with this event and was expected to see enhanced seismicity at this time. A stronger – perhaps a moderately strong event - is possible as this swarm continues in the next several days.
Forecast 162114 and 162115 had expected this activity in the Gulf of California was likely in mid-April. This activity is at 108 degrees from the M 7.4 in Taiwan of April 2 and at 105 degrees from the New Guinea quake of March 23 (M 6.9) and may have been promoted by energy from those sources. These events are also located at the fourth node (90 degrees) from the M 7.4 in Western Honshu, Japan of January 1, 2024 and the Loyalty Islands of M 7.1 of December 7, 2023 and at the seventh node (51 degrees) from the M 6.7 in Brazil of January 20, 2024 and may have been promoted by energy from those sources.
O: 17APR2024 05:12:48 26.0N 110.7W mb=4.4 EMSC GULF OF CALIFORNIA
O: 16APR2024 22:57:41 26.1N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 17APR2024 01:45:14 26.1N 110.6W Mw=4.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 05:35:35 26.2N 110.5W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 07:07:40 26.2N 110.8W ML=4.1 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:13:15 26.3N 110.6W ML=4.0 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:09:45 26.4N 110.4W ML=4.2 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:32:14 26.4N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 17APR2024 01:40:58 26.4N 111.1W ML=4.0 EMSC GULF OF CALIFORNIA
O: 16APR2024 23:50:15 25.7N 110.5W ML=4.4 EMSC GULF OF CALIFORNIA
P: 11APR2024 162114 24.0N 109.0W 3.5-4.9 BBBAA Gulf of California
P: 15APR2024 162115 25.0N 113.0W 3.5-5.1 AACAA Gulf of California
A series of light to moderate earthquakes occurred today in the area of Coso Junction, California. NEIC reported these events including an M 3.4, 3.4, 3.4 and 3.9 were felt with intensity up to III in Coso Junction, CA. This is the strongest earthquake (M 3.9) in the Coso Junction area of Central California since an M 4.6 on July 15, 2022. At the time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 4.6 in the Ridgecrest area of Central California. NEIC reported this earthquake of M 4.6 in the California-Nevada border region was felt with intensity II-III in the area(s) of the California-Nevada border region with IV in Ridgecrest and Trona and lesser shaking in Inyokern, Weldon, Lake Isabella, Bodfish, Caliente, East Tulare County, Mojave and Wofford Heights. This is the strongest earthquake within about 100 km of this epicenter since an M 4.8 on August 19, 2020 - an aftershock of an M 5.8 on June 24, 2020. A series of moderate to strong earthquake began in this area of Ridgecrest in July 4 and 6, 2019 with M 6.4 and M 7.1 among many other moderate associated shocks. Today's event was likely triggered by high tidal stresses with the full moon of July 13 ..." (July 15, 2022)
Forecast 162174 had expected this event within about 25 km was likely around
April 17, 2024. This epicenter is at 103-107 degrees from recent strong to major earthquakes in Talaud and Mindanao, Philippines and at 102 degrees from the M 7.0 in Xinjiang, China of January 22, 2024 and may have been promoted by energy from those sources.
O: 16APR2024 15:24:15 36.1N 117.9W ML=2.5 EMSC CENTRAL CALIFORNIA
O: 16APR2024 15:25:39 36.1N 117.9W ML=3.2 EMSC CENTRAL CALIFORNIA
O: 16APR2024 15:29:08 36.1N 117.9W ML=2.0 EMSC CENTRAL CALIFORNIA
O: 16APR2024 16:08:14 36.1N 117.9W ML=2.0 EMSC CENTRAL CALIFORNIA
O: 16APR2024 17:43:11 36.1N 117.9W ML=3.3 EMSC CENTRAL CALIFORNIA
O: 16APR2024 18:54:41 36.1N 117.9W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 16APR2024 21:20:23 36.1N 117.9W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 17APR2024 01:21:41 36.1N 117.9W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 16APR2024 15:23:26 36.1N 117.9W mw=3.9 ANSS NNE of Coso Junction
O: 16APR2024 15:23:25 36.1N 117.9W MW=3.9 EMSC CENTRAL CALIFORNIA
P: 17APR2024 162174 35.9N 117.7W 2.5-4.6 AAAAA So. California
A series of earthquakes also occurred in the northern Gulf of California today following a brief period of relative quiet in the area. The largest of these was an M 4.1. The last swarm in this area with M>=4.1 as maximum size occurred on July 16, 2023. At the time this summary noted:
“A strong swarm of earthquakes also occurred today in Baja and the Gulf of California, Mexico. The strongest earthquakes in this series occurred within minutes of local solar noon with M 4.6 and 4.3 but the series began with smaller event including an M 4.0 shortly after the M 7.2 in the Alaska Peninsula. NEIC reported the earthquake of M 4.6 in the Gulf of California, Mexico was felt with intensity II-III in the area(s) of Sonora, Mexico in Puerto Penasco (VI) and Sonoita; in San Felipe, Baja California and in Arizona at Somerton (IV), Wellton, and Sells. Several moderate earthquakes including an M 4.2 were also felt in Baja California today. These were felt lightly in Baja California at Tijuana. This activity was probably triggered by strong tidal stresses with the new moon of July 17." (July 16, 2023)
Today's events were most prominent in the area around local solar midnight and may have been promoted by strong tidal stresses which maximize near this hour.
Forecast 162164 had expected this activity in the northern Gulf of California was likely around April 16. This epicenter is located at 106 degrees from the M 7.0 in Xinjiang, China and at 103 degrees from Taiwan of M 7.4 on April 2, 2024 and the M 6.9 in New Guinea of March 23, 2024 and may have been promoted by energy from that source.
O: 16APR2024 08:11:00 30.7N 114.4W ML=3.4 EMSC GULF OF CALIFORNIA
O: 16APR2024 08:21:18 31.4N 114.5W ML=3.8 EMSC GULF OF CALIFORNIA
O: 16APR2024 08:32:32 31.4N 114.5W ML=3.5 EMSC GULF OF CALIFORNIA
O: 16APR2024 09:23:52 31.4N 114.5W ML=3.7 EMSC GULF OF CALIFORNIA
O: 16APR2024 09:27:55 31.4N 114.6W ML=4.1 EMSC GULF OF CALIFORNIA
O: 16APR2024 10:15:39 31.4N 114.5W ML=3.4 EMSC GULF OF CALIFORNIA
O: 16APR2024 10:25:45 31.4N 114.4W ML=3.8 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:27:22 31.4N 114.4W ML=3.7 EMSC GULF OF CALIFORNIA
O: 16APR2024 09:06:26 30.6N 114.5W ML=3.4 EMSC GULF OF CALIFORNIA
P: 16APR2024 162164 30.2N 114.1W 2.0-3.9 AAAAA SW U.S.A
A rare earthquake of M 3.0 occurred today in Nova Scotia, Canada. The total eclipse of the sun was visible at this epicenter on April 8, 2024 at 19:40 UT. No earthquakes of M>=3 have been located within about 200 km of this epicenter in Nova Scotia by NEIC in the past 35 years. An M 3.9 was located about 250 km southeast of today's epicenter on August 6, 2018 – the only such regional earthquake recorded in the past three decades. It appears likely that this event was promoted by strong tidal stresses with the eclipse.
The strongest earthquake in the U.S. or Canada today was an M 4.3 in the western
Fox Islands, Alaska. The last earthquake within about 150 km of today's epicenter with M>=4.3 occurred as an M 4.7 on April 10, 2024 and M 4.8 on February 12, 2024. At the time of the April 10 event this summary noted:
"The strongest earthquakes in the U.S. or Canada today were an M 4.7 in the eastern Andreanof Islands, Alaska and an M 4.8 in the Unimak Islands. The event in the western Andreanof Islands was reported felt with intensity II (by NEIC) in Atka, Alaska. The last earthquake of M>=4.7 in the area of today's Andreanof Island event occurred as an M 4.8 on February 12, 2024 and December 4, 2023. The last event of significantly larger magnitude in that area was an M 5.6 on October 12, 2023." (April 10, 2024)
Forecast 162232 had expected this event in this region was likely around April 12, 2024.
O: 17APR2024 01:48:27 52.4N 170.4W mb=4.3 ANSS WSW of Nikolski Alaska
O: 17APR2024 01:48:28 52.4N 170.5W MB=4.3 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 12APR2024 162232 52.1N 171.8W 3.5-5.1 BAAAA Andreanoff Isls, Aleutians
A strong series of light earthquakes occurred today in Southern Texas near Nixon and Stockdale. The largest of today's events in this region was an M 3.2. The last earthquakes of equal or greater magnitude in this region of Southern Texas was an M 4.7 on February 17, 2024 with aftershocks of M 4.0 on February 22 and M 3.4 on February 23, 2024. At the time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 4.7 in southern Texas. This event was reported by NEIC to have been felt with intensity up to VI in Falls City, Texas. Aftershocks of M 3.7 and 3.3 followed and were felt in the same area. EMSC reported the mainshocks were felt as far as San Antonio where beds shook and people were awakened. It followed a series of foreshocks including an M 4.4 twelve minutes earlier which was felt with intensity up to V in Falls City, Texas. An M 3.9 foreshock was also felt with intensity up to V in the Falls City area of Texas. Today's activity occurred within minutes of local solar midnight and may have been promoted by strong tidal stresses which maximize near this hour. An X2.3 solar flare occurred on February 16, 2024 when this epicenter was at local solar midnight. This flare may have helped trigger this unusually large earthquake." (February 17, 2024)
Today's event of M 3.2 lies under the path of the total solar eclipse of April 8 and was probably promoted by energy from that tidal alignment.
Forecast 162122 had expected this event was likely around April 14 within about 100 km of today's epicenter. This activity is at the third node (120 degrees) from the M 6.7 on March 3, 2024 and at 103 degrees from the M 6.9 in Mariana Islands and the M 7.1 in the Loyalty Islands of April 4, 2004 and December 7, 2003 and may have been promoted by energy from that source.
O: 16APR2024 21:30:17 29.0N 97.8W ML=2.1 EMSC SOUTHERN TEXAS
O: 17APR2024 00:11:00 29.1N 97.8W ML=3.2 EMSC SOUTHERN TEXAS
O: 17APR2024 00:38:38 29.1N 97.8W ML=2.1 EMSC SOUTHERN TEXAS
O: 17APR2024 01:40:18 29.1N 97.8W ML=2.4 EMSC SOUTHERN TEXAS
O: 17APR2024 01:40:18 29.1N 97.8W ml=2.4 ANSS SE of Stockdale Texas
O: 17APR2024 01:10:40 29.1N 97.8W ml=1.6 ANSS SSW of Nixon Texas
O: 17APR2024 01:02:13 29.1N 97.8W ml=1.9 ANSS Falls City Texas
O: 17APR2024 00:38:38 29.1N 97.8W ml=2.1 ANSS SSW of Nixon Texas
O: 17APR2024 00:11:00 29.1N 97.8W ml=3.2 ANSS SE of Stockdale Texas
O: 16APR2024 21:30:17 29.0N 97.8W ml=2.1 ANSS NNW of Runge Texas
O: 16APR2024 19:00:54 29.1N 97.8W ml=1.7 ANSS Falls City Texas
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 BBAAA Northern Mexico
The strongest earthquake in the world today was an M 5.5 near Guam. NEIC reported it was felt with intensity IV in Inarajan, Guam. The last earthquake of equal or larger magnitude within the area of Guam within about 200 km of this epicenter occurred on October 20, 2023 with M 5.8.
Forecast 162107 had expected this activity in Guam was likely within about
100 km around April 16, 2024. This epicenter is at 143 degrees from the M 6.7 in Brazil of January 20, 2024 and may have been promoted by energy from that source.
O: 16APR2024 14:58:56 13.0N 145.4E MB=5.5 EMSC GUAM REGION
O: 16APR2024 14:58:55 12.9N 145.4E mb=5.5 ANSS Inarajan Village Guam
P: 16APR2024 162107 14.0N 146.0E 4.0-5.4 AAAAA So. Marianas/Guam
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: 16APR2024 18:59:49 24.1N 121.9E MW=4.4 EMSC TAIWAN
O: 16APR2024 18:59:49 24.1N 121.8E mw=4.4 ANSS Hualien City Taiwan
P: 13APR2024 162126 24.0N 121.0E 4.0-5.4 BAAAA Taiwan
EMSC reported this earthquake of M 4.4 in Taiwan was felt with intensity up to III in the area(s) of Taiwan in Linkou District.
Strong aftershocks are still likely in Taiwan in the next week. This is
most likely with the full moon of April 23 when a strong aftershock
is possible.
O: 17APR2024 04:22:33 42.0N 82.7E MB=4.9 EMSC NORTHERN XINJIANG, CHINA
P: 12APR2024 162198 42.0N 82.0E 4.0-5.8 BAAAA Kirgizstan/Xinjiang
EMSC reported this earthquake of M 4.9 in Northern Xinjiang, China was felt with intensity up to III in the area(s) of Northern Xinjiang, China in Almaty.`
O: 16APR2024 10:50:28 52.0N 98.4E MB=3.8 EMSC RUSSIA-MONGOLIA BORDER REGION
P: 14APR2024 162246 51.0N 98.0E 3.0-4.6 AAAAA So. Siberia
O: 16APR2024 10:37:12 55.9N 164.6E MB=4.9 EMSC KOMANDORSKIYE OSTROVA REGION
O: 16APR2024 10:37:21 55.9N 164.5E mb=5.0 ANSS UstΓÇÖ-Kamchatsk Staryy Russia
O: 16APR2024 10:37:11 55.9N 164.7E mb=4.9 ANSS UstΓÇÖ-Kamchatsk Staryy Russia
P: 17APR2024 162239 55.0N 165.0E 4.0-5.9 AAAAA Komandorsky Isl
O: 16APR2024 15:11:01 60.7N 165.8E MB=4.2 EMSC NEAR E COAST OF KORYAKIA,
P: 5APR2024 161991 62.0N 169.0E 3.5-4.9 DBBAA North of Kamchatka
P: 17APR2024 162239 55.0N 165.0E 4.0-5.9 ACAAA Komandorsky Isl
O: 16APR2024 20:59:50 27.8N 59.3E MB=4.3 EMSC SOUTHEASTERN IRAN
P: 17APR2024 162124 29.0N 58.0E 3.5-5.0 ABAAA So. Iran/Persian Gulf
INDONESIA AND PHILIPPINES
O: 17APR2024 02:27:48 2.0S 122.6E ML=4.0 EMSC SULAWESI, INDONESIA
O: 17APR2024 01:23:15 0.3S 123.8E ML=4.3 EMSC SULAWESI, INDONESIA
P: 18APR2024 162083 1.0S 124.0E 4.0-5.6 AAAAA Sulawesi area
O: 17APR2024 04:52:25 1.3N 128.5E ML=4.1 EMSC HALMAHERA, INDONESIA
P: 17APR2024 162055 2.0N 128.0E 4.0-5.4 AAAAA Halmahera
O: 17APR2024 03:55:52 2.6S 133.4E MB=4.6 EMSC PAPUA, INDONESIA
P: 17APR2024 162084 2.0S 134.0E 4.0-5.4 AAAAA West Irian, PNG
O: 16APR2024 19:20:46 7.0S 129.8E ML=4.4 EMSC KEPULAUAN BABAR, INDONESIA
P: 20APR2024 162086 5.0S 131.0E 4.0-5.4 BBAAA West Irian, PNG
O: 16APR2024 16:06:13 9.8N 126.4E MB=5.0 EMSC MINDANAO, PHILIPPINES
O: 16APR2024 16:06:14 9.7N 126.3E MB=5.0 ANSS E OF UNION PHILIPPINES
P: 14APR2024 162097 10.0N 127.0E 3.5-5.0 AAAAA Luzon, Philippines
NEIC reported this earthquake of M 5.0 in Mindanao, Philippines was felt with intensity up to V in the area(s) of Mindanao, Philippines in Union.
EMSC reported moderate shaking in Butuan City, Philippines.
O: 16APR2024 23:01:23 11.4N 93.0E MB=5.2 EMSC ANDAMAN ISLANDS, INDIA REGION
P: 5APR2024 161817 11.0N 93.0E 4.0-5.9 CAAAA Andaman Islands
P: 13APR2024 162087 10.0N 94.0E 4.0-5.7 BBAAA Andaman Islands
NEIC reported this earthquake of M 5.2 in the Andaman Islands, India was felt with intensity up to V in the area(s) of the Andaman Islands, India in Blair, India.
O: 16APR2024 14:58:56 13.0N 145.4E MB=5.5 EMSC GUAM REGION
O: 16APR2024 14:58:55 12.9N 145.4E mb=5.5 ANSS Inarajan Village Guam
P: 16APR2024 162107 14.0N 146.0E 4.0-5.4 AAAAA So. Marianas/Guam
CENTRAL AND SOUTH AMERICA
O: 16APR2024 13:54:22 8.7S 74.6W ML=4.3 EMSC CENTRAL PERU
P: 20APR2024 162063 9.0S 75.0W 3.5-5.4 BAAAA Brazil
O: 16APR2024 21:40:11 11.6N 88.4W ML=4.1 EMSC OFF COAST OF CENTRAL AMERICA
P: 18APR2024 162102 12.0N 88.0W 3.5-5.5 AAAAA Nicaragua
O: 16APR2024 12:14:55 12.9N 88.8W ML=4.1 EMSC OFFSHORE EL SALVADOR
P: 15APR2024 162091 13.0N 89.0W 3.5-5.6 AAAAA Coast of Central America
P: 18APR2024 162102 12.0N 88.0W 3.5-5.5 AAAAA Nicaragua
O: 17APR2024 01:56:55 13.6S 71.7W ML=4.0 EMSC CENTRAL PERU
P: 13APR2024 162266 14.0S 73.0W 4.0-5.9 BABAA Central Peru
O: 16APR2024 19:36:33 14.1N 91.2W MB=4.4 EMSC GUATEMALA
P: 17APR2024 162094 14.0N 92.0W 3.5-5.4 AAAAA Guatemala
O: 17APR2024 03:41:29 17.3N 94.6W ML=4.0 EMSC VERACRUZ, MEXICO
P: 14APR2024 162090 18.0N 95.0W 3.5-5.3 BAAAA Chiapas, Mexico
O: 16APR2024 20:56:46 18.5N 68.9W MD=3.5 EMSC DOMINICAN REPUBLIC
P: 17APR2024 162106 18.0N 68.0W 3.4-4.9 AAAAA Puerto Rico
O: 16APR2024 21:30:43 24.1S 67.0W MB=4.5 EMSC SALTA, ARGENTINA
P: 15APR2024 162280 23.0S 64.0W 4.0-5.6 ABBAA Argentina
O: 16APR2024 09:35:44 19.8N 73.6W ML=3.8 EMSC HAITI REGION
O: 16APR2024 07:49:22 19.0N 73.5W ML=3.8 EMSC HAITI REGION
P: 5APR2024 161843 19.0N 73.0W 3.0-4.5 DAAAA Bahamas/No. Caribbean
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 AACAA Bahamas/No. Caribbean
O: 17APR2024 05:12:48 26.0N 110.7W mb=4.4 EMSC GULF OF CALIFORNIA
O: 16APR2024 22:57:41 26.1N 110.6W ML=4.2 EMSC GULF OF CALIFORNIA
O: 17APR2024 01:45:14 26.1N 110.6W Mw=4.9 EMSC GULF OF CALIFORNIA
O: 17APR2024 05:35:35 26.2N 110.5W ML=4.1 EMSC GULF OF CALIFORNIA
O: 17APR2024 07:07:40 26.2N 110.8W ML=4.1 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:13:15 26.3N 110.6W ML=4.0 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:09:45 26.4N 110.4W ML=4.2 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:32:14 26.4N 110.6W ML=3.8 EMSC GULF OF CALIFORNIA
O: 17APR2024 01:40:58 26.4N 111.1W ML=4.0 EMSC GULF OF CALIFORNIA
O: 16APR2024 23:50:15 25.7N 110.5W ML=4.4 EMSC GULF OF CALIFORNIA
P: 11APR2024 162114 24.0N 109.0W 3.5-4.9 BBBAA Gulf of California
P: 15APR2024 162115 25.0N 113.0W 3.5-5.1 AACAA Gulf of California
O: 16APR2024 08:16:13 27.9N 112.4W ML=3.4 EMSC GULF OF CALIFORNIA
O: 16APR2024 07:56:01 27.8N 112.4W ML=3.3 EMSC GULF OF CALIFORNIA
P: 15APR2024 162115 28.0N 112.0W 3.5-5.1 AAAAA Gulf of California
AFRICA AND EUROPE
EMSC reported an earthquake of M 4.3 in Eastern Turkey was felt with intensity up to III in the area(s) of Eastern Turkey in Tandogan, Zafer, Bahceli Evler, Ismetiye, Malatya, Bostanbasi, Inonu, Dilek, Altinsehir, Nuripazarbasi, Yavuzlu, Kucukminare, Yesilyurt among others.
SOUTHWEST PACIFIC
O: 16APR2024 07:56:45 14.8S 168.0E MW=5.0 EMSC VANUATU
P: 17APR2024 162278 15.0S 167.0E 4.0-5.6 AAAAA Vanuatu Islands
OCEAN RIDGES
No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.
ZEALANDIA AND AUSTRALIA REGION
O: 17APR2024 06:36:31 33.1S 138.7E ML=4.1 EMSC NEAR COAST OF SOUTH AUSTRALIA
O: 16APR2024 12:25:14 33.2S 138.6E ML=1.9 EMSC NEAR COAST OF SOUTH AUSTRALIA
O: 16APR2024 18:30:13 37.4S 177.7E MW=4.4 EMSC OFF E. COAST OF N. ISLAND, N.Z
O: 16APR2024 18:30:13 37.4S 177.7E MS=4.7 GEONET North Islands, NZ.
P: 18APR2024 162299 38.0S 177.0E 3.0-4.4 AAAAA North Island, N.Z.
NEIC reported this earthquake of M 4.4 in North Island, New Zealand was felt with intensity up to III in the area(s) of North Island, New Zealand in Hicks Bay.
GEONET reported 436 people reported feeling this earthquake with 223 at weak intensity and 175 with light shaking and 34 with moderate intensity 2 with strong, 0 with severe and 0 with extreme intensity.
JAPAN AND KURIL ISLANDS
O: 16APR2024 20:19:15 26.4N 142.6E MB=4.8 EMSC BONIN ISLANDS, JAPAN REGION
P: 15APR2024 162112 26.0N 144.0E 4.0-5.6 AAAAA Bonin Islands
O: 16APR2024 18:21:29 39.5N 141.8E MB=4.6 EMSC EASTERN HONSHU, JAPAN
P: 16APR2024 162177 39.0N 143.0E 4.0-5.4 AAAAA So. of Honshu
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 16APR2024 08:11:00 30.7N 114.4W ML=3.4 EMSC GULF OF CALIFORNIA
O: 16APR2024 08:21:18 31.4N 114.5W ML=3.8 EMSC GULF OF CALIFORNIA
O: 16APR2024 08:32:32 31.4N 114.5W ML=3.5 EMSC GULF OF CALIFORNIA
O: 16APR2024 09:23:52 31.4N 114.5W ML=3.7 EMSC GULF OF CALIFORNIA
O: 16APR2024 09:27:55 31.4N 114.6W ML=4.1 EMSC GULF OF CALIFORNIA
O: 16APR2024 10:15:39 31.4N 114.5W ML=3.4 EMSC GULF OF CALIFORNIA
O: 16APR2024 10:25:45 31.4N 114.4W ML=3.8 EMSC GULF OF CALIFORNIA
O: 16APR2024 21:27:22 31.4N 114.4W ML=3.7 EMSC GULF OF CALIFORNIA
O: 16APR2024 09:06:26 30.6N 114.5W ML=3.4 EMSC GULF OF CALIFORNIA
P: 16APR2024 162164 30.2N 114.1W 2.0-3.9 AAAAA SW U.S.A
O: 16APR2024 23:10:25 32.9N 115.5W ML=2.1 EMSC SOUTHERN CALIFORNIA
P: 16APR2024 162168 33.0N 115.9W 2.5-4.7 AAAAA So. California
O: 16APR2024 15:19:10 34.0N 118.4W ML=2.7 EMSC GREATER LOS ANGELES AREA, CALI
O: 16APR2024 07:32:00 34.9N 119.0W ML=2.0 EMSC CENTRAL CALIFORNIA
P: 19APR2024 162172 34.9N 119.0W 2.5-4.4 BAAAA So. California
NEIC reported this earthquake of M 2.8 in Los Angeles was felt with intensity up to IV in the area(s) of Los Angeles at View Park and Windsor Hills.
EMSC reported a strong jolt in Los Angeles at Culver City, Los Angeles, Inglewood, Hawthorne, Santa Monica, Valley Village, Torrance.
O: 17APR2024 06:35:14 37.5N 115.4W ML=2.0 EMSC NEVADA
P: 19APR2024 162132 37.8N 115.8W 2.5-4.7 AAAAA California/Nevada area
O: 16APR2024 15:24:15 36.1N 117.9W ML=2.5 EMSC CENTRAL CALIFORNIA
O: 16APR2024 15:25:39 36.1N 117.9W ML=3.2 EMSC CENTRAL CALIFORNIA
O: 16APR2024 15:29:08 36.1N 117.9W ML=2.0 EMSC CENTRAL CALIFORNIA
O: 16APR2024 16:08:14 36.1N 117.9W ML=2.0 EMSC CENTRAL CALIFORNIA
O: 16APR2024 17:43:11 36.1N 117.9W ML=3.3 EMSC CENTRAL CALIFORNIA
O: 16APR2024 18:54:41 36.1N 117.9W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 16APR2024 21:20:23 36.1N 117.9W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 17APR2024 01:21:41 36.1N 117.9W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 16APR2024 15:23:26 36.1N 117.9W mw=3.9 ANSS NNE of Coso Junction
O: 16APR2024 15:23:25 36.1N 117.9W MW=3.9 EMSC CENTRAL CALIFORNIA
P: 17APR2024 162174 35.9N 117.7W 2.5-4.6 AAAAA So. California
ALASKA
O: 16APR2024 20:33:09 52.4N 166.2W ML=3.7 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 18APR2024 162237 53.5N 167.3W 3.5-5.1 ABAAA Fox Islands, Aleutians
O: 17APR2024 01:48:27 52.4N 170.4W mb=4.3 ANSS WSW of Nikolski Alaska
O: 17APR2024 01:48:28 52.4N 170.5W MB=4.3 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 12APR2024 162232 52.1N 171.8W 3.5-5.1 BAAAA Andreanoff Isls, Aleutians
O: 16APR2024 10:51:13 57.1N 157.6W ML=3.0 EMSC ALASKA PENINSULA
P: 15APR2024 162229 54.8N 158.7W 3.5-5.0 ACAAA Alaska Peninsula
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: 16APR2024 21:29:35 31.6N 104.6W ML=2.0 EMSC WESTERN TEXAS
O: 17APR2024 02:23:23 31.6N 104.5W ML=2.4 EMSC WESTERN TEXAS
O: 16APR2024 21:26:39 31.7N 104.2W ML=2.8 EMSC WESTERN TEXAS
P: 15APR2024 162163 31.2N 104.1W 2.0-3.9 AAAAA SW U.S.A
EASTERN U.S./CANADA
O: 16APR2024 21:30:17 29.0N 97.8W ML=2.1 EMSC SOUTHERN TEXAS
O: 17APR2024 00:11:00 29.1N 97.8W ML=3.2 EMSC SOUTHERN TEXAS
O: 17APR2024 00:38:38 29.1N 97.8W ML=2.1 EMSC SOUTHERN TEXAS
O: 17APR2024 01:40:18 29.1N 97.8W ML=2.4 EMSC SOUTHERN TEXAS
O: 17APR2024 01:40:18 29.1N 97.8W ml=2.4 ANSS SE of Stockdale Texas
O: 17APR2024 01:10:40 29.1N 97.8W ml=1.6 ANSS SSW of Nixon Texas
O: 17APR2024 01:02:13 29.1N 97.8W ml=1.9 ANSS Falls City Texas
O: 17APR2024 00:38:38 29.1N 97.8W ml=2.1 ANSS SSW of Nixon Texas
O: 17APR2024 00:11:00 29.1N 97.8W ml=3.2 ANSS SE of Stockdale Texas
O: 16APR2024 21:30:17 29.0N 97.8W ml=2.1 ANSS NNW of Runge Texas
O: 16APR2024 19:00:54 29.1N 97.8W ml=1.7 ANSS Falls City Texas
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 BBAAA Northern Mexico
O: 16APR2024 09:50:06 35.5N 83.6W MD=2.0 EMSC NORTH CAROLINA
O: 16APR2024 09:50:06 35.5N 83.6W md=2.0 ANSS Bryson City North Carolina
P: 16APR2024 162146 35.0N 83.0W 2.0-4.4 AAAAA Kentucky/Tennessee/NC
O: 16APR2024 18:35:00 47.8N 70.0W MB=1.0 ECAN OF SAINT-SIMéON, QC
P: 14APR2024 162206 47.3N 70.5W 2.0-4.0 AAAAA New England
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 AAAAA Maine
O: 16APR2024 08:27:23 40.7N 74.8W ML=1.0 ANSS CALIFON NEW JERSEY
P: 13APR2024 162206 40.0N 74.0W 2.0-4.3 BAAAA New England
HAWAII
No earthquakes of M>=3 were located in Hawaii.
STRONG EARTHQUAKE SHAKES RYUKYU ISLANDS, JAPAN
EARTHQUAKE SUMMARY FOR APRIL 15, 2024
The strongest earthquake in the world today was an M 5.9 in the Ryukyu Islands of Japan. NEIC reported it was felt with intensity up to IV in Koshima, Japan. It is the strongest in the northern Ryukyu Islands within about 200 km of this epicenter since an M 6.1 on December 9, 2021. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.0 in the northern Ryukyu Islands, Japan. NEIC reported maximum shaking with this event of VI in Nago, Okinawa with IV in Naha, Okinawa and in Kagoshima at Naze, Nishinoomote and lesser shaking in Ibusuki and Kanoya, Kagoshima and in Hirara, Okinawa, Japan. The last earthquake of M>=6 within about 150 km of this epicenter in the Ryukyu Islands was an M 6.7 on November 13, 2015. An M 6.6 and an M 6.1 about 150 km to the west of this occurred at intermediate depths on June 13, 2020 and July 13, 2019 but because of their depths are not considered possible foreshocks." (December 9, 2021)
It is likely this event was related to the M 7.4 on April 2, 2024 in Taiwan at the southern end of the Ryukyu chain. It seems likely that this series will continue in the next several days and may contain a further strong quake near Kyushu or Shikoku, Japan.
Forecast 162118 had expected today's event within about 100 km was likely around April 13, 2024.
O: 15APR2024 22:38:57 29.5N 131.7E MW=5.9 ANSS SE OF KOSHIMA JAPAN
P: 13APR2024 162118 29.0N 131.0E 4.0-5.5 AAAAA Kyushu Japan
The strongest earthquake in the U.S. or Canada today was an M 4.6 in the Near Islands, Alaska. NEIC reported it was felt with intensity up to III in Attu Station, Alaska. The last earthquake of M>=4.6 in the Near Islands occurred about 150 km northwest of today's epicenter on December 25, 2023. At the time this summary noted:
"Among the strongest earthquakes in the world today were a pair in the Aleutians of Alaska of M 4.6 and M 4.7. The strongest earthquake recorded in the U.S. or Canada today was an M 4.7 in the far western Near Islands, Aleutians. It was not reported felt in this westernmost area of the U.S. Aleutian Islands. The last earthquake of larger size in the Near Islands occurred as an M 4.8 exactly one year ago on December 25, 2022 and again as an M 4.8 on May 20, 2023. At the time this summary noted:
"The strongest unfelt earthquake in the U.S. today was an M 4.8 in the Near Islands, Aleutians, Alaska. This is the largest earthquake in the Near Islands since an M 4.8 on December 25, 2022. The last earthquake of larger magnitude in this area was an M 5.2 more than a year ago on March 1, 2022. The strongest earthquake within about 300 km of today's event in the Near Islands in the past three years was an M 5.7 on December 29, 2021. 2022. Forecast 153273 had expected this earthquake in the Near Islands was likely around May 17, 2023." (May 20, 2023, December 25, 2023)
Forecast 162239 had expected today's event in this area in the Near Islands was likely around April 16.
O: 15APR2024 18:17:02 52.6N 172.8E MB=4.6 ANSS ATTU STATION ALASKA
P: 16APR2024 162239 53.0N 171.0E 4.0-5.7 AAAAA Near 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: 16APR2024 04:02:38 36.7N 54.8E ML=4.0 EMSC NORTHERN IRAN
P: 17APR2024 162156 36.0N 51.0E 3.8-5.2 AACAA No. Iran
No significant (M>=5) or unusual earthquakes were reported in Asia today.
INDONESIA AND PHILIPPINES
O: 15APR2024 11:11:41 5.5N 123.9E MB=4.2 ANSS SW OF MALISBENG PHILIPPINES
P: 19APR2024 162058 4.0N 125.0E 4.0-5.6 BBAAA Mindanao, Philippines
O: 15APR2024 15:42:26 6.3S 150.4E MB=4.5 ANSS KIMBE PAPUA NEW GUINEA
O: 15APR2024 15:42:28 6.4S 150.5E mb=4.5 EMSC NEW BRITAIN REGION, P.N.G.
P: 15APR2024 162070 5.0S 152.0E 4.0-5.5 ABBAA New Britain
O: 15APR2024 13:14:37 3.7S 142.0E ML=4.0 EMSC NEW GUINEA, PAPUA NEW GUINEA
P: 11APR2024 162077 3.0S 141.0E 4.0-5.5 BAAAA Papua New Guinea
O: 15APR2024 10:43:29 5.2S 151.9E MW=5.4 EMSC NEW BRITAIN REGION, P.N.G.
P: 15APR2024 162070 5.0S 152.0E 4.0-5.5 AAAAA New Britain
O: 15APR2024 11:11:42 5.4N 124.0E MB=4.2 EMSC CELEBES SEA
P: 19APR2024 162058 4.0N 125.0E 4.0-5.6 BBAAA Mindanao, Philippines
O: 16APR2024 03:07:17 7.0S 125.0E MB=4.8 EMSC BANDA SEA
P: 12APR2024 162062 6.0S 125.0E 4.0-5.4 BAAAA Banda Sea
BMG reported this earthquake of M 5.0 in the Banda Sea was felt with intensity up to III in the area(s) of the Banda Sea in Kab. Alor and Maluku Barat Daya.
O: 16APR2024 03:18:21 7.3S 105.9E MB=4.8 EMSC JAVA, INDONESIA
P: 14APR2024 162079 9.0S 106.0E 4.0-5.5 ABAAA So. of Java
O: 15APR2024 08:31:03 7.3S 129.3E ML=4.4 EMSC KEPULAUAN BABAR, INDONESIA
P: 10APR2024 161795 7.0S 127.0E 4.0-5.4 BACAA Banda Sea
O: 15APR2024 08:17:34 8.1N 127.1E ML=4.1 EMSC PHILIPPINE ISLANDS REGION
O: 16APR2024 00:53:42 9.9N 126.3E ML=4.1 EMSC MINDANAO, PHILIPPINES
P: 11APR2024 162056 9.0N 127.0E 4.0-5.4 BAAAA Halmahera
P: 14APR2024 162097 10.0N 127.0E 3.5-5.0 ABAAA Luzon, Philippines
CENTRAL AND SOUTH AMERICA
O: 15APR2024 07:09:39 15.1N 96.4W ML=4.0 EMSC OFFSHORE OAXACA, MEXICO
P: 17APR2024 162105 16.0N 97.0W 3.5-5.3 AAAAA Oaxaca, Mexico
O: 15APR2024 14:08:32 14.2N 92.4W ML=4.2 EMSC OFFSHORE GUATEMALA
O: 16APR2024 02:36:31 15.3N 92.0W ML=4.1 EMSC GUATEMALA
P: 17APR2024 162094 14.0N 92.0W 3.5-5.4 ABAAA Guatemala
O: 15APR2024 12:48:29 16.9N 94.0W ML=4.0 EMSC OAXACA, MEXICO
P: 15APR2024 162105 17.0N 96.0W 3.5-5.6 AABAA Oaxaca, Mexico
O: 16APR2024 05:38:12 18.6S 70.6W ML=4.0 EMSC OFFSHORE TARAPACA, CHILE
P: 16APR2024 162289 20.0S 70.0W 4.0-5.4 ABAAA So. Peru/Bolivia
GUC reported this earthquake of M 4.0 in Arica, Chile was felt with intensity up to III in the area(s) of Arica, Chile.
O: 15APR2024 07:02:03 18.9N 64.7W MD=3.7 EMSC VIRGIN ISLANDS REGION
O: 15APR2024 12:59:21 19.1N 64.7W MD=3.8 EMSC VIRGIN ISLANDS REGION
P: 14APR2024 162096 19.0N 64.0W 3.0-5.1 AAAAA Leeward Islands
O: 15APR2024 11:36:02 19.8N 70.4W ML=3.2 EMSC DOMINICAN REPUBLIC REGION
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 AAAAA Bahamas/No. Caribbean
AFRICA AND EUROPE
O: 15APR2024 14:08:32 63.4N 24.1W ML=3.0 EMSC ICELAND REGION
P: 17APR2024 162259 63.0N 23.0W 3.0-4.6 AAAAA Iceland area
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
No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.
ZEALANDIA AND AUSTRALIA REGION
EMSC reported this earthquake of M 2.7 in Southeastern Australia was felt with intensity up to III in the area(s) of Southeastern Australia in Mount Barker and Strathalbyn with a thundering earthquake noise.
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 15APR2024 22:38:57 29.5N 131.7E MW=5.9 ANSS SE OF KOSHIMA JAPAN
P: 13APR2024 162118 29.0N 131.0E 4.0-5.5 AAAAA Kyushu Japan
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 16APR2024 03:08:41 40.4N 124.8W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 15APR2024 08:55:36 40.4N 125.1W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 14APR2024 162212 40.5N 125.8W 2.5-4.8 AAAAA Off Coast of No. Calif
NEIC reported these earthquakes of M 3.0 off the coast of Northern California were felt with intensity up to III in the area(s) of Northern California in Petrolia.
ALASKA
O: 15APR2024 09:32:41 54.9N 160.3W ML=3.3 EMSC ALASKA PENINSULA
P: 15APR2024 162249 54.3N 161.4W 3.5-4.9 AAAAA Unimak Islands, Aleutians
NEIC reported this earthquake of M 3.6 in Unimak, Alaska was felt with intensity up to III in the area(s) of Unimak, Alaska in Sand Point.
O: 15APR2024 18:17:02 52.6N 172.8E MB=4.6 ANSS ATTU STATION ALASKA
P: 16APR2024 162239 53.0N 171.0E 4.0-5.7 AAAAA Near Islands
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 15APR2024 10:29:06 52.6N 132.1W MB=3.1 ECAN OF QUEEN CHARLOTTE, BC
O: 15APR2024 10:29:06 52.6N 132.1W ML=3.1 EMSC QUEEN CHARLOTTE ISLANDS REGION
P: 12APR2024 162234 53.0N 132.0W 3.0-5.1 BAAAA British Colombia
ROCKY MOUNTAINS REGION
O: 16APR2024 03:58:26 31.6N 104.5W ML=2.2 EMSC WESTERN TEXAS
O: 16APR2024 05:53:52 31.6N 104.5W ML=2.0 EMSC WESTERN TEXAS
O: 16APR2024 06:31:52 31.6N 104.6W ML=2.6 EMSC WESTERN TEXAS
O: 16APR2024 06:33:18 31.6N 104.5W ML=3.1 EMSC WESTERN TEXAS
O: 16APR2024 06:52:40 31.6N 104.5W ML=2.2 EMSC WESTERN TEXAS
O: 15APR2024 12:36:04 31.7N 104.4W ML=2.5 EMSC WESTERN TEXAS
O: 15APR2024 12:54:04 31.6N 104.4W ML=2.1 EMSC WESTERN TEXAS
P: 15APR2024 162163 31.2N 104.1W 2.0-3.9 AAAAA SW U.S.A
NEIC reported this earthquake of M 2.9 in Western Texas was felt with intensity up to III in the area(s) of Western Texas in Whites City, New Mexico.
EASTERN U.S./CANADA
O: 16APR2024 00:46:26 29.1N 97.8W ML=1.7 ANSS SSW OF NIXON TEXAS
O: 15APR2024 21:57:25 29.1N 97.8W ML=2.6 ANSS FALLS CITY TEXAS
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 AAAAA Northern Mexico
O: 15APR2024 13:58:52 40.7N 74.7W ML=1.0 ANSS CALIFON NEW JERSEY
O: 15APR2024 10:50:37 40.7N 74.8W ML=1.2 ANSS CALIFON NEW JERSEY
P: 13APR2024 162206 40.0N 74.0W 2.0-4.3 AAAAA New England
HAWAII
O: 15APR2024 16:31:26 19.2N 155.5W ML=3.0 EMSC ISLAND OF HAWAII, HAWAII
P: 15APR2024 162095 19.3N 155.1W 3.0-4.4 AAAAA Hawaii
NEIC reported this earthquake of M 3.2 in Hawaii was felt with intensity up to III in the area(s) of Hawaii in Pahala.
STRONG EARTHQUAKE SHAKES NEW BRITAIN, PAPUA NEW GUINEA
EARTHQUAKE SUMMARY FOR APRIL 14, 2024
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. At the time this summary noted:
"The strongest earthquake in the world today was an M 7.5-7.7 in the New Britain
region of Papua New Guinea. NEIC reported it was felt with maximum intensity VII
in Rabaul, New Britain and VI in Kokopo; V in Namatanai, New Ireland; IV in Arawa, Solomon Islands and II-III in Kavleng, New Ireland and within about 500 km of the epicenter. It was also reported felt with moderate to strong intensity in Port Vila, Lihir Island, Bougainville, Port Moresby with power blackouts in the Kokopo area. PTWC issued a tsunami warning but this was later withdrawn. Villagers near the epicenter on the west coast of New Ireland reported seeing the ocean recede but no damaging waves were recorded. Damage did occur in New Britain but immediate reports are unclear as to how great it was. … this earthquake was simultaneous with the strongest geomagnetic storm since August 26, 2018 when AP reached 76." (May 14, 2019)
The last earthquake in New Britain with M>=6.5 within about 200 km of today's epicenter occurred on October 10, 2018 with M 7.0.
Forecast 162070 had expected today's event within this area was likely around
April 15, 2024.
O: 14APR2024 20:56:28 5.8S 151.0E MW=6.5 EMSC NEW BRITAIN REGION, P.N.G.
O: 14APR2024 20:56:28 5.8S 151.1E MW=6.5 ANSS KIMBE PAPUA NEW GUINEA
P: 15APR2024 162070 5.0S 152.0E 4.0-5.5 AAAAA New Britain
Light earthquakes continued along the path of total eclipse of the sun of April 8 today. These occurred in Quebec, Nova Scotia, Maine and New Brunswick as well as in Tennessee and Missouri. Following is a listing of these minor earthquakes along the total eclipse path today. This continues the extensive series of such earthquakes which have occurred since the eclipse and has been documented in previous issues of this summary.
O: 14APR2024 05:02:29 45.7N 67.6W MB=1.7 ECAN OF MCADAM, NB
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 BBAAA Maine
O: 13APR2024 23:13:16 45.7N 59.4W MB=3.0 ECAN OF LOUISBOURG, NS
O: 13APR2024 10:13:56 46.6N 76.1W MB=1.5 ECAN OF GRAND-REMOUS, QC
P: 13APR2024 162207 46.0N 74.0W 2.0-4.1 AABAA New York State
O: 12APR2024 16:56:03 47.1N 71.1W MB=1.9 ECAN OF SAINTE-BRIGITTE-DE-LAVAL, QC
P: 14APR2024 162206 47.3N 70.5W 2.0-4.0 AAAAA New England
O: 15APR2024 02:57:33 36.1N 89.4W md=1.6 ANSS NNW of Dyersburg Tennessee
O: 14APR2024 22:28:46 36.6N 89.6W MD=1.3 ANSS NORTH LILBOURN MISSOURI
P: 15APR2024 162152 36.3N 89.5W 2.0-4.1 AAAAA New Madrid area
The strongest earthquake in the U.S. or Canada today was an M 3.9 in the Near Islands, Aleutians, Alaska. It was not reported felt in this remote area. The last earthquake in the Near Islands of larger magnitude than M 3.9 occurred as an M 4.7 on December 25, 2023. At the time this summary noted:
"Among the strongest earthquakes in the world today were a pair in the Aleutians of Alaska of M 4.6 and M 4.7. The strongest earthquake recorded in the U.S. or Canada today was an M 4.7 in the far western Near Islands, Aleutians. It was not reported felt in this westernmost area of the U.S. Aleutian Islands. The last earthquake of larger size in the Near Islands occurred as an M 4.8 exactly one year ago on December 25, 2022 and again as an M 4.8 on May 20, 2023." (December 25, 2023)
Forecast 162239 had expected this event within about 25 km was likely around
April 16.
O: 14APR2024 08:41:14 52.8N 171.3E MB=3.9 EMSC NEAR ISLANDS, ALEUTIAN ISLANDS
P: 16APR2024 162239 53.0N 171.0E 4.0-5.7 AAAAA Near 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: 14APR2024 14:37:51 24.3N 122.0E ML=4.1 EMSC TAIWAN
O: 14APR2024 23:10:23 24.3N 121.8E ML=4.0 EMSC TAIWAN
O: 14APR2024 16:15:06 24.2N 121.7E ML=4.2 EMSC TAIWAN
P: 13APR2024 162126 24.0N 121.0E 4.0-5.4 AAAAA Taiwan
O: 14APR2024 18:16:27 37.8N 101.2E MB=4.9 EMSC NORTHERN QINGHAI, CHINA
P: 19APR2024 162175 35.0N 99.0E 3.5-5.0 BCBAA So. China
O: 14APR2024 13:51:00 41.2N 78.6E MB=4.6 EMSC SOUTHERN XINJIANG, CHINA
P: 16APR2024 162198 41.0N 78.0E 4.0-5.8 AAAAA Kirgizstan/Xinjiang
NEIC reported this earthquake of M 4.8 in Xinjiang, China was felt with intensity up to III in the area(s) of Xinjiang, China in Kazakhstan at Almaty, Zhetigen auyldyq okrug, and in Bishkek, Kyrgyzstan.
INDONESIA AND PHILIPPINES
O: 14APR2024 15:06:56 0.5N 126.7E ML=4.1 EMSC MOLUCCA SEA
P: 16APR2024 162058 3.0N 126.0E 4.0-5.5 ACAAA Mindanao, Philippines
O: 14APR2024 08:57:36 3.0N 97.4E ML=4.3 EMSC NORTHERN SUMATRA, INDONESIA
O: 15APR2024 00:08:26 3.2N 96.6E ML=4.0 EMSC NORTHERN SUMATRA, INDONESIA
P: 17APR2024 162059 2.0N 95.0E 4.0-5.5 BABAA Nicobar Islands
O: 14APR2024 20:56:28 5.8S 151.0E MW=6.5 EMSC NEW BRITAIN REGION, P.N.G.
O: 14APR2024 20:56:28 5.8S 151.1E MW=6.5 ANSS KIMBE PAPUA NEW GUINEA
P: 15APR2024 162070 5.0S 152.0E 4.0-5.5 AAAAA New Britain
O: 14APR2024 12:37:25 7.5N 126.2E ML=4.3 EMSC MINDANAO, PHILIPPINES
O: 14APR2024 14:05:51 7.6N 126.2E ML=4.1 EMSC MINDANAO, PHILIPPINES
P: 11APR2024 162056 8.0N 125.0E 4.0-5.4 BAAAA Central Philippines
P: 11APR2024 162056 9.0N 127.0E 4.0-5.4 BBAAA Halmahera
O: 14APR2024 11:24:14 11.9N 125.8E MB=4.7 EMSC SAMAR, PHILIPPINES
P: 15APR2024 162097 13.0N 126.0E 3.5-5.1 ABAAA Luzon, Philippines
O: 14APR2024 17:39:18 21.2N 146.0E MB=4.9 EMSC MARIANA ISLANDS REGION
P: 14APR2024 162127 21.0N 146.0E 4.0-5.6 AAAAA Volcano Islands
CENTRAL AND SOUTH AMERICA
O: 14APR2024 10:58:42 1.6S 80.9W MB=4.6 EMSC NEAR COAST OF ECUADOR
P: 6APR2024 161799 1.0S 81.0W 4.0-5.4 CAAAA Ecuador
NEIC reported this earthquake of M 4.6 in Ecuador was felt with intensity up to III in the area(s) of Ecuador in Jipijapa.
EMSC reported strong shaking in Ecuador at Salango, Santa Elena.
O: 14APR2024 13:56:47 12.2S 77.4W ML=4.8 EMSC NEAR COAST OF CENTRAL PERU
P: 8APR2024 162003 13.0S 77.0W 4.0-5.6 CAAAA Central Peru
NEIC reported this earthquake of M 4.6 in Peru was felt with intensity up to III in the area(s) of Peru in Lima, Miraflores, Chorrillos, San Juan de Miraflores, Santiago de Surco.
O: 14APR2024 19:14:59 14.0N 91.2W MB=4.8 EMSC GUATEMALA
P: 12APR2024 162094 15.0N 92.0W 3.5-5.3 AAAAA Guatemala
P: 17APR2024 162094 14.0N 92.0W 3.5-5.4 BAAAA Guatemala
NEIC reported this earthquake of M 4.8 in Guatemala was felt with intensity up to IV in the area(s) of Guatemala in Gomera.
EMSC reported moderate shaking in Guatemala at Aldea Santo Tomas Milpas Altas, Condominio Cristalinas, Mixco, Colonia El Amparo.
O: 15APR2024 06:18:47 14.2N 94.1W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
P: 16APR2024 162090 15.0N 94.0W 3.5-5.5 AAAAA Chiapas, Mexico
O: 14APR2024 23:29:06 11.1N 87.0W MB=4.7 EMSC NEAR COAST OF NICARAGUA
P: 17APR2024 162101 11.0N 86.0W 3.5-5.5 BAAAA Nicaragua
O: 14APR2024 14:05:53 6.4S 80.3W ML=4.2 EMSC NEAR COAST OF NORTHERN PERU
P: 20APR2024 162075 6.0S 76.0W 4.0-5.8 CACAA No. Peru
O: 14APR2024 08:08:53 16.6N 93.1W ML=4.0 EMSC CHIAPAS, MEXICO
P: 16APR2024 162090 15.0N 94.0W 3.5-5.5 ABAAA Chiapas, Mexico
O: 14APR2024 19:58:26 19.2N 65.1W MD=3.7 EMSC VIRGIN ISLANDS REGION
O: 14APR2024 19:43:20 19.3N 65.1W MD=3.6 EMSC VIRGIN ISLANDS REGION
P: 17APR2024 162110 20.0N 65.0W 3.0-4.6 BAAAA Bahamas/No. Caribbean
O: 14APR2024 20:50:43 19.6N 71.4W ML=3.0 EMSC DOMINICAN REPUBLIC
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 AAAAA Bahamas/No. Caribbean
AFRICA AND EUROPE
O: 15APR2024 06:06:29 34.4N 26.2E ML=4.4 EMSC CRETE, GREECE
P: 19APR2024 162142 34.0N 27.0E 3.0-4.4 BAAAA Crete
O: 14APR2024 07:44:24 40.8N 14.1E MD=3.7 EMSC SOUTHERN ITALY
P: 16APR2024 162195 42.0N 15.0E 3.0-5.0 ABAAA Italy
NEIC reported this earthquake of M 2.7 in Italy was felt with intensity up to III in the area(s) of Italy in Bacoli.
EMSC reported this earthquake of M 3.7 in Southern Italy was felt with intensity up to III in the area(s) of Southern Italy in Pozzuoli, Napoli, Quarto.
No significant (M>=5) or unusual earthquakes were reported in Europe today.
SOUTHWEST PACIFIC
O: 14APR2024 09:47:50 18.4S 175.5W MB=4.9 EMSC TONGA
P: 9APR2024 162028 20.0S 175.0W 4.0-5.6 BBAAA Tonga Islands
P: 12APR2024 162275 19.0S 173.0W 4.0-5.6 AACAA Tonga Islands
O: 14APR2024 10:15:19 19.2S 177.7W MB=4.5 EMSC FIJI REGION
P: 17APR2024 162276 19.0S 178.0W 4.0-5.4 BAAAA 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: 14APR2024 22:00:33 37.2S 146.7E ML=2.8 EMSC NEAR S.E. COAST OF AUSTRALIA
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 14APR2024 16:06:12 42.1N 142.7E ML=4.1 EMSC HOKKAIDO, JAPAN REGION
P: 17APR2024 162194 41.0N 143.0E 3.5-5.4 BBAAA Hokkaido, Japan
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 14APR2024 12:13:56 32.2N 116.6W ML=2.6 EMSC BAJA CALIFORNIA, MEXICO
P: 13APR2024 162168 32.6N 116.1W 2.5-4.8 AAAAA So. California
O: 14APR2024 07:21:27 32.4N 115.2W ML=2.0 EMSC BAJA CALIFORNIA, MEXICO
P: 15APR2024 162168 32.4N 115.8W 2.5-4.8 AAAAA So. California
O: 14APR2024 17:46:41 34.1N 119.1W ML=2.0 EMSC GREATER LOS ANGELES AREA, CALI
P: 19APR2024 162172 34.9N 119.0W 2.5-4.4 BAAAA So. California
O: 14APR2024 14:53:10 34.9N 118.9W ML=2.0 EMSC CENTRAL CALIFORNIA
P: 14APR2024 162173 35.4N 118.5W 2.5-4.8 AAAAA So. California
O: 14APR2024 13:50:52 36.3N 118.3W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 14APR2024 10:08:57 36.3N 118.3W ML=2.4 EMSC CENTRAL CALIFORNIA
P: 13APR2024 162174 35.8N 117.6W 2.5-4.5 AAAAA So. California
P: 14APR2024 162173 35.4N 118.5W 2.5-4.8 AAAAA So. California
O: 14APR2024 19:57:02 37.5N 121.2W MD=2.9 EMSC NORTHERN CALIFORNIA
P: 13APR2024 162137 37.4N 121.8W 2.5-4.6 AAAAA Central California
O: 14APR2024 09:50:40 38.8N 122.8W MD=2.2 EMSC NORTHERN CALIFORNIA
P: 14APR2024 162138 38.7N 122.7W 2.5-4.6 AAAAA Central California
ALASKA
O: 14APR2024 13:07:22 51.4N 178.8E ML=3.5 EMSC RAT ISLANDS, ALEUTIAN ISLANDS
P: 12APR2024 162244 51.0N 179.0E 4.0-5.7 AAAAA Rat Islands
O: 14APR2024 08:41:14 52.8N 171.3E MB=3.9 EMSC NEAR ISLANDS, ALEUTIAN ISLANDS
P: 16APR2024 162239 53.0N 171.0E 4.0-5.7 AAAAA Near Islands
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 15APR2024 10:29:06 52.6N 132.1W MB=3.1 ECAN OF QUEEN CHARLOTTE, BC
P: 12APR2024 162234 53.0N 132.0W 3.0-5.1 BAAAA British Colombia
ROCKY MOUNTAINS REGION
O: 14APR2024 17:06:06 31.4N 103.5W ML=2.1 EMSC WESTERN TEXAS
O: 15APR2024 01:23:46 31.6N 104.5W ML=3.4 EMSC WESTERN TEXAS
O: 15APR2024 02:45:57 31.6N 104.5W ML=2.0 EMSC WESTERN TEXAS
O: 15APR2024 03:27:33 31.6N 104.5W ML=2.4 EMSC WESTERN TEXAS
O: 14APR2024 07:48:52 31.7N 104.1W ML=2.0 EMSC WESTERN TEXAS
P: 15APR2024 162163 31.2N 104.1W 2.0-3.9 AAAAA SW U.S.A
NEIC reported this earthquake of M 3.3 in Western Texas was felt with intensity up to IV in the area(s) of Western Texas in Whites City, New Mexico.
O: 14APR2024 20:59:18 32.9N 100.9W ML=2.8 EMSC WESTERN TEXAS
P: 11APR2024 162163 32.2N 101.1W 2.0-3.9 BAAAA SW U.S.A
O: 15APR2024 03:22:08 39.4N 111.9W ML=2.3 EMSC UTAH
P: 16APR2024 162184 39.7N 111.9W 2.0-3.9 AAAAA Utah area
EASTERN U.S./CANADA
O: 14APR2024 06:40:04 46.7N 82.3W MB=2.5 ECAN OF ELLIOT LAKE, ON
O: 14APR2024 08:48:09 46.7N 82.2W MB=2.4 ECAN OF SPANISH RIVER CARBONITE MINE,
P: 13APR2024 162215 46.0N 81.0W 2.0-4.1 AAAAA Ohio/Lake Erie
O: 14APR2024 05:02:29 45.7N 67.6W MB=1.7 ECAN OF MCADAM, NB
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 BBAAA Maine
O: 13APR2024 23:13:16 45.7N 59.4W MB=3.0 ECAN OF LOUISBOURG, NS
O: 13APR2024 15:47:37 71.9N 74.9W MB=2.2 ECAN OF POND INLET, NU
O: 13APR2024 06:26:14 73.4N 74.8W MB=1.9 ECAN OF POND INLET, NU
P: 9APR2024 161997 71.0N 75.0W 2.5-4.0 BAAAA Baffin/Davis Strait Canada
O: 13APR2024 10:13:56 46.6N 76.1W MB=1.5 ECAN OF GRAND-REMOUS, QC
P: 13APR2024 162207 46.0N 74.0W 2.0-4.1 AABAA New York State
O: 13APR2024 09:35:30 47.9N 71.5W MB=2.6 ECAN OF CHICOUTIMI - JONQUIèRE, QC
O: 12APR2024 16:56:03 47.1N 71.1W MB=1.9 ECAN OF SAINTE-BRIGITTE-DE-LAVAL, QC
P: 14APR2024 162206 47.3N 70.5W 2.0-4.0 AAAAA New England
O: 15APR2024 06:29:43 40.7N 74.8W ml=0.9 ANSS Califon New Jersey
O: 15APR2024 05:17:24 40.7N 74.8W ml=1.3 ANSS Califon New Jersey
O: 15APR2024 05:02:17 40.7N 74.8W ml=1.1 ANSS Califon New Jersey
O: 15APR2024 03:01:28 40.7N 74.8W ml=1.0 ANSS Lebanon New Jersey
P: 13APR2024 162206 40.0N 74.0W 2.0-4.3 AAAAA New England
O: 14APR2024 07:15:59 35.4N 84.4W MD=1.8 ANSS E OF ENGLEWOOD TENNESSEE
P: 13APR2024 162178 34.0N 85.0W 2.0-4.5 ABAAA Southeast U.S.
O: 15APR2024 02:57:33 36.1N 89.4W md=1.6 ANSS NNW of Dyersburg Tennessee
O: 14APR2024 22:28:46 36.6N 89.6W MD=1.3 ANSS NORTH LILBOURN MISSOURI
P: 15APR2024 162152 36.3N 89.5W 2.0-4.1 AAAAA New Madrid area
HAWAII
No earthquakes of M>=3 were located in Hawaii.
MINOR QUAKES IN LOUISIANA; MISSOURI; MAINE UNDER TOTAL SOLAR ECLIPSE PATH
EARTHQUAKE SUMMARY FOR APRIL 13, 2024
ECLIPSE-RELATED SEISMICITY
Several earthquakes occurred today along the path of total eclipse of the sun. The most unusual of these was an M 2.6 in Louisiana near the border with Texas. NEIC reported it was felt with light intensity II in Edgefield, Louisiana. An M 3.5 hit near this epicenter on January 27, 2024 and this may be an aftershock of that event. At the time this summary noted:
"An unusual earthquake of M 3.5 occurred today in Louisiana. NEIC reported it was widely felt with intensity up to V in Louisiana at Hall Summit. An M 2.5 foreshock was felt in the same area today. Light earthquakes occurred in this area of Louisiana in April an December, 2021 and in November, 2022 but none of these were larger than M 3.0. The last event in Louisiana within about 100 km of today's epicenter occurred more that 35 years ago. An M 4.3 about 150 km to the southwest of this epicenter occurred on September 2, 2013." (January 27, 2024)
The total eclipse was observed near this epicenter at 18:47 UT on April 8.
Forecast 162179 had expected this activity in Louisiana was likely within about 100 km around April 17. This epicenter is at 103 degrees from the M 6.9 in the Mariana Is of April 5, 2024 and the M 6.7 in the Loyalty Islands of March 27, 2024 and may have been promoted by energy from those sources.
O: 13APR2024 20:50:48 32.1N 93.4W ML=2.6 EMSC LOUISIANA
O: 13APR2024 20:50:48 32.1N 93.4W mb=2.6 ANSS NW of Edgefield Louisiana
P: 17APR2024 162179 34.0N 94.0W 2.0-3.9 BBAAA Southeast U.S.
Another minor earthquake on the path of total eclipse of April 8 occurred today in southeastern Missouri. It was reported by NEIC to have been lightly felt in Missouri at Williamsville. The total solar eclipse was visible at this epicenter at 18:59 for 4 minutes 11 seconds. This is the strongest earthquake within about 50 km of this epicenter since an M 2.7 on February 20, 2024 and an M 2.4 on July 28, 2023.
Forecasts 162152 and 161880 had expected enhanced seismicity in this region was likely with the eclipse around April 9-15.
O: 13APR2024 19:31:44 36.9N 90.4W MD=2.2 EMSC SOUTHEASTERN MISSOURI
O: 13APR2024 19:31:44 36.9N 90.4W md=2.3 ANSS ESE of Williamsville Missouri
P: 9APR2024 161880 36.7N 89.7W 2.0-3.9 BAAAA New Madrid area
P: 13APR2024 162152 37.0N 89.0W 2.0-4.0 AAAAA New Madrid area
P: 15APR2024 162152 36.3N 89.5W 2.0-4.1 AAAAA New Madrid area
An earthquake of M 1.5 was also reported today in Vanceboro, Maine. This epicenter at 46N 67W saw the total eclipse at 19:34 UT. Today's event occurred near local solar midnight and was probably promoted by tidal stresses with the eclipse. This is the first earthquake recorded within Maine by NEIC since an M 2.5 about 250 km southwest of this on August 8, 2023. The strongest earthquake in Maine in the past 3.5 years occurred with M 3.3 in southern Maine on January 14, 2023. At the time this summary noted:
"A series of light earthquakes were felt in southern Maine near Augusta today. The largest of these was an M 3.3 which NEIC reported was felt with maximum intensity IV in Holden, Orland, Orrington and II-III in Bucksport, Ellsworth, Eddington, Brewer, Penobscot, Orono and Winterport and as far as Bethel and Portland, Maine. This activity began with an M 2.2 at 12:17 UT on January 13 but a series of aftershocks were widely felt near local solar midnight on January 14, 2023. Solar flare 9950 occurred simultaneously with these events on January 14 and SFE from this flare may have helped trigger these events. The M 3.3 is the strongest earthquake in Maine within about 100 km of these epicenters since an M 3.8 on October 3, 2006 – the strongest event in this area in at least 30 years (a similar M 3.8 hit the area on February 26, 1999 about 125 km to the southwest of today's epicenter)." (January 14, 2023)
Forecast 161927 and 162199 had expected enhanced seismicity in this area of Maine was likely with the eclipse.
O: 14APR2024 05:02:29 45.6N 67.6W MB=1.5 ANSS NW OF VANCEBORO, MAINE
P: 8APR2024 161927 47.0N 69.0W 2.0-4.1 CBAAA Maine
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 BBAAA Maine
The strongest earthquake in the U.S. or Canada today was an M 4.4 WNW of Fort St. John, British Columbia, Canada. It may have been felt lightly in the epicentral area. The last earthquake within about 200 km of this epicenter with equal or greater magnitude to M 4.4 occurred on August 17, 2015. Other events in the past 35 years in this area occurred as an M 5.3 about 200 km to the east on April 14, 2001 and as an M 5.0 on December 26, 1992 about 100 km to the southeast of today's epicenter.
Forecast 161962 had expected today's earthquake was likely in this area in early April, 2024.
O: 13APR2024 11:21:47 56.8N 121.8W MB=4.4 ECAN WNW OF FORT ST. JOHN, BC
O: 13APR2024 11:21:48 56.8N 121.6W mb=4.1 ANSS Fort St. John Canada
O: 13APR2024 11:21:48 56.8N 121.6W ML=4.4 EMSC BRITISH COLUMBIA, CANADA
P: 5APR2024 161962 56.0N 120.0W 2.0-4.1 CABAA Alberta
A series of moderate earthquakes also occurred today under the world's oceans. Among these were an 5.3 in the Central Mid-Atlantic; an M 5.0 in the Southeast Indian Ridge; an M 5.1 in the Western Indian-Antarctic Ridge and an M 4.7 as unusual earthquake also occurred today in the central North Pacific Ocean basin. This earthquake occurred near local solar midnight and may have been promoted by strong tidal stresses which maximize near this hour. This is the strongest earthquake within about 500 km of this epicenter in the North Pacific region in at least 35 years. It was not forecast in this summary.
O: 13APR2024 10:37:54 34.0N 177.0W MB=4.7 EMSC NORTH PACIFIC OCEAN
O: 13APR2024 10:37:54 34.0N 177.0W mb=4.7 ANSS North Pacific Ocean
The M 5.0 in the Southeast Indian Ridge was nearly antipodal to Missouri and Illinois, and was antipodal to the path of the solar eclipse of April 8. It was probably promoted by tidal stresses associated with that eclipse. Today's earthquake occurred near local solar noon when tidal stresses maximize. The last earthquake with equal or greater magnitude within about 300 km of today's epicenter was an M 5.9 on October 14, 2018.
Forecast 162306 had expected today's event within about 100 km was likely around April 12.
O: 13APR2024 06:53:45 42.1S 88.9E MB=5.0 EMSC SOUTHEAST INDIAN RIDGE
P: 12APR2024 162306 42.0S 88.0E 4.0-5.6 AAAAA So. Indian Ocean
Another moderate oceanic earthquake which was antipodal to the path of totality of the eclipse occurred today south of Australia in the western Indian-Antarctic Ridge with M 5.1. Today's event occurred within minutes of local solar midnight and may have been promoted by tidal stresses which maximize near this hour. This is antipodal to Nova Scotia where the eclipse at 49N 58W was visible at 19:42 UT. It too, was probably promoted by stresses associated with the eclipse. A rare earthquake also occurred on April 16, 2024 near the antipode in Nova Scotia of this event south of Australia. Recent earthquakes within about 300 km of this event south of Australia of M 5.1 occurred in April, 2022, February 2021; December, 2019 and September , 2018 but the last of larger magnitude in this region occurred on April 21, 2018 (M 5.8) and June 3, 2009 (M 5.7).
Forecast 162044 had expected this event within about 50 km was likely around April 7 with the solar eclipse.
O: 13APR2024 15:17:18 49.1S 121.4E MB=5.1 EMSC WESTERN INDIAN-ANTARCTIC RIDGE
P: 7APR2024 162044 49.0S 122.0E 4.0-5.8 CAAAA So. of Australia
The last earthquake in the Central Mid-Atlantic with M>=5.3 within about 250 km of this epicenter occurred on October 14, 2023 (half a year ago) with M 5.3-5.4 but the last earthquake of larger magnitude in the area was an M 5.7 aftershock on September 17, 2020 of an M 6.7 on September 6, 2020.
Forecast 162050 had expected today's event within about 50 km was likely around April 12, 2024. This epicenter is antipodal to an M 6.9 in Papua New Guinea of March 23, 2024 and may have been promoted by energy from that source.
O: 14APR2024 05:28:47 7.6N 37.2W MW=5.3 EMSC CENTRAL MID-ATLANTIC RIDGE
P: 12APR2024 162050 8.0N 37.0W 4.0-5.6 AAAAA Central Mid-Atlantic Ridg
An earthquake of M 3.4-3.8 occurred in Southern California today and was widely
felt at a festival near Borrego Springs, California. NEIC reported this earthquake of M 3.8 in Southern California was felt with intensity up to IV in the area(s) of Southern California at Borrego Springs. EMSC reported moderate shaking in Southern California at Thermal, La Quinta (with earthquake noise), Mountain Center, Indio, Indian Wells, Cathedral City, Palm Springs, Lakeside, San Diego, Oceanside. The last earthquake within about 100 km of this epicenter with larger magnitude was an M 4.0 about 100 km southeast of this on February 14, 2024 but the last within about 100 km of today's epicenter with larger magnitude was an M 4.2 on December 31, 2022. At the time this summary noted:
"The quake of M 4.2-4.3 in the Borrego Springs area of Southern California today was also felt with maximum intensity IV in Borrego Springs and with II-III in Southern California at Ranchita, Mountain Center, Warner Springs, La Quinta, Palm Desert, Anza, Indian Wells, Indio and Coachella among others. This is the strongest earthquake in Southern California within about 75 km of this epicenter since an M 4.5 on May 10, 2020. An M 5.2 also hit the area on June 10, 2016.
... A strong earthquake of M 7.3-7.6 hit the region on June 28, 1992, the strongest in Southern California in decades. A repeat is unlikely but 24 years is enough time to accumulated sufficient regional stress to accommodate another strong regional earthquake." (June 3-4, 10, 2016, January 1, 2023)
Forecast 162169 had expected today's event within about 25 km was likely around April 12. This epicenter at 104 degrees from the M 7.0 in Xinjiang, China of January 22, 2024 and may have been promoted by energy from that source.
O: 13APR2024 16:08:38 33.4N 116.3W ML=3.4 EMSC SOUTHERN CALIFORNIA
O: 13APR2024 16:08:38 33.4N 116.3W ML=3.8 ANSS SOUTHERN CALIFORNIA
P: 12APR2024 162169 33.4N 116.7W 2.5-4.6 AAAAA 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: 13APR2024 18:39:26 23.4N 120.2E ML=4.2 EMSC TAIWAN
O: 13APR2024 12:38:49 23.7N 121.6E mb=4.7 EMSC TAIWAN
O: 13APR2024 14:26:36 24.0N 121.6E MB=4.7 EMSC TAIWAN
P: 13APR2024 162126 24.0N 121.0E 4.0-5.4 AAAAA Taiwan
NEIC reported this earthquake of M 4.7 in Taiwan was felt with intensity up to III in the area(s) of Taiwan in Hualien City.
O: 14APR2024 05:58:34 36.5N 70.3E MB=4.0 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 13APR2024 162144 37.0N 70.0E 3.8-5.4 AAAAA Hindu Kush/Pakistan
INDONESIA AND PHILIPPINES
O: 13APR2024 15:50:16 1.3N 126.2E mb=4.6 EMSC MOLUCCA SEA
O: 13APR2024 16:40:57 2.2N 126.6E mb=5.3 EMSC MOLUCCA SEA
O: 13APR2024 17:47:01 2.4N 126.8E MB=4.6 EMSC MOLUCCA SEA
P: 11APR2024 162055 3.0N 126.0E 4.0-5.4 AAAAA Halmahera
BMG reported this earthquake of M 5.1 in Talaud, Indonesia was felt with intensity up to III in the area(s) of Talaud, Indonesia in Stasiun Meteorologi, Martim Klas II Bitung and II in Kab Manado, Bitung, Toraja, Halmahera and Kota Ternate, Indonesia.
O: 13APR2024 17:20:00 3.1S 129.1E ML=4.3 EMSC SERAM, INDONESIA
O: 13APR2024 23:46:52 2.8S 129.4E ML=4.1 EMSC SERAM, INDONESIA
P: 8APR2024 161798 3.0S 129.0E 4.0-5.4 BAAAA Ceram area
P: 13APR2024 162086 4.0S 131.0E 4.0-5.4 AABAA West Irian, PNG
O: 13APR2024 18:34:52 8.6N 126.5E ML=4.3 EMSC MINDANAO, PHILIPPINES
P: 11APR2024 162056 9.0N 127.0E 4.0-5.4 AAAAA Halmahera
O: 13APR2024 19:32:26 12.0N 125.6E mb=4.5 EMSC SAMAR, PHILIPPINES
O: 13APR2024 09:10:48 11.9N 125.8E MB=4.7 EMSC SAMAR, PHILIPPINES
P: 15APR2024 162097 13.0N 126.0E 3.5-5.1 ABAAA Luzon, Philippines
O: 14APR2024 05:31:49 19.9N 121.5E MB=4.8 EMSC BABUYAN ISL REGION, PHILIPPINE
P: 16APR2024 162098 19.0N 122.0E 3.5-5.1 AAAAA Luzon, Philippines
CENTRAL AND SOUTH AMERICA
NEIC reported an earthquake of M 4.2 in Nicaragua was felt with intensity up to III in the area(s) of Nicaragua at El Rosario.
O: 13APR2024 16:21:00 14.4N 92.2W ML=4.3 EMSC OFFSHORE GUATEMALA
P: 12APR2024 162094 15.0N 92.0W 3.5-5.3 AAAAA Guatemala
O: 13APR2024 10:28:30 15.5N 94.8W ML=4.1 EMSC OFFSHORE OAXACA, MEXICO
P: 16APR2024 162090 15.0N 94.0W 3.5-5.5 BAAAA Chiapas, Mexico
O: 14APR2024 05:37:06 18.2N 67.7W MD=3.4 EMSC MONA PASSAGE, PUERTO RICO
P: 13APR2024 162106 18.0N 67.0W 3.4-5.2 AAAAA Puerto Rico
O: 14APR2024 05:17:23 18.4S 71.3W ML=4.0 EMSC OFF COAST OF TARAPACA, CHILE
P: 14APR2024 162272 18.0S 73.0W 4.0-5.9 AABAA So. Peru/Bolivia
O: 13APR2024 08:59:35 18.8N 65.5W MD=3.6 EMSC PUERTO RICO REGION
O: 13APR2024 07:01:11 19.5N 66.0W MD=3.6 EMSC PUERTO RICO REGION
P: 17APR2024 162110 20.0N 67.0W 3.0-4.8 BAAAA Bahamas/No. Caribbean
O: 13APR2024 18:39:14 18.5N 69.2W ML=3.2 EMSC DOMINICAN REPUBLIC
O: 13APR2024 19:59:47 18.6N 68.4W MD=3.5 EMSC DOMINICAN REPUBLIC
O: 13APR2024 13:51:27 19.0N 68.7W MD=3.8 EMSC DOMINICAN REPUBLIC REGION
O: 13APR2024 07:25:52 19.5N 69.8W ML=3.1 EMSC DOMINICAN REPUBLIC REGION
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 AAAAA Bahamas/No. Caribbean
O: 13APR2024 19:10:06 20.9S 69.0W MB=4.2 EMSC TARAPACA, CHILE
P: 12APR2024 162282 21.0S 69.0W 4.0-5.4 AAAAA Coast No. Chile
O: 14APR2024 03:16:24 23.6S 63.7W ML=4.4 EMSC SALTA, ARGENTINA
P: 15APR2024 162280 23.0S 64.0W 4.0-5.6 AAAAA Argentina
O: 13APR2024 19:27:31 23.9S 67.5W ML=4.2 EMSC ANTOFAGASTA, CHILE
P: 12APR2024 162280 22.0S 67.0W 4.0-5.4 ABAAA Argentina
O: 13APR2024 08:54:20 27.6N 111.7W ML=3.6 EMSC GULF OF CALIFORNIA
P: 15APR2024 162115 28.0N 112.0W 3.5-5.1 AAAAA Gulf of California
O: 13APR2024 23:01:20 32.5S 71.6W ML=4.8 EMSC OFFSHORE VALPARAISO, CHILE
P: 14APR2024 162294 34.0S 71.0W 4.0-5.9 ABAAA Central Chile
EMSC reported this earthquake of M 4.9 in Valparaiso, Chile was felt with intensity up to III in the area(s) of Valaraiso, Chile in Concon, Vina del Mar, Valparaiso, Quilpue, Xan Felipe, Cartagena, Macul.
AFRICA AND EUROPE
O: 13APR2024 16:54:09 39.0N 23.3E Mw=4.2 EMSC GREECE
O: 14APR2024 02:02:43 39.0N 23.4E MB=4.5 EMSC GREECE
P: 13APR2024 162154 37.0N 22.0E 3.0-4.4 ABAAA No. Greece
P: 17APR2024 162154 39.0N 21.0E 3.0-4.7 BABAA No. Greece
NEIC reported this earthquake of M 4.5 in Greece was felt with intensity up to III in the area(s) of Greece in Mantoudi.
EMSC reported an earthquake noise and moderate shaking in Greece at South Pelion, Promyri, Psarochoma, Skopelos, Makryrrachi, Volos, Vathy, Llion, Chalandri, Vrilissia, Nicaea, Keratsini, Tavros, Glyka Nera, Athens, Pallini, Piraeus, Kallithea, Kalamaki among others.
NEIC reported this earthquake of M 4.2 in Greece was felt with intensity up to III in the area(s) of Greece in Isiaia.
EMSC reported this event with moderate shaking was felt in Greece at Asmini, South Pelion, Agria, Anilio, Volos, Chalkida, Vathy, Kifisia, Petroupoli, Illion, Amarousia, Athens, among others.
O: 14APR2024 07:02:50 45.8N 26.8E ML=3.9 EMSC ROMANIA
P: 13APR2024 162220 46.0N 26.0E 3.0-5.2 AAAAA Romania/NW Turkey
O: 13APR2024 10:02:17 63.9N 22.0W ML=3.3 EMSC ICELAND REGION
P: 17APR2024 162259 63.0N 23.0W 3.0-4.6 BAAAA Iceland area
SOUTHWEST PACIFIC
O: 13APR2024 08:48:52 20.3S 177.6W MB=4.9 EMSC FIJI REGION
P: 16APR2024 162290 21.0S 178.0W 4.0-5.9 BAAAA Tonga Islands
O: 13APR2024 10:47:02 15.1S 173.1W MB=5.4 EMSC TONGA
O: 13APR2024 10:47:02 15.0S 173.0W mb=5.3 ANSS NE of Hihifo Tonga
P: 14APR2024 162274 16.0S 173.0W 4.0-5.4 AAAAA Tonga Islands
NEIC reported this earthquake of M 5.3 in Tonga was felt with intensity up to IV in the area(s) of Tonga in Hihifo.
EMSC reported it was felt with moderate intensity in Samoa.
OCEAN RIDGES
O: 14APR2024 05:28:47 7.6N 37.2W MW=5.3 EMSC CENTRAL MID-ATLANTIC RIDGE
P: 12APR2024 162050 8.0N 37.0W 4.0-5.6 AAAAA Central Mid-Atlantic Ridg
O: 13APR2024 10:37:54 34.0N 177.0W MB=4.7 EMSC NORTH PACIFIC OCEAN
O: 13APR2024 10:37:54 34.0N 177.0W mb=4.7 ANSS North Pacific Ocean
O: 13APR2024 06:53:45 42.1S 88.9E MB=5.0 EMSC SOUTHEAST INDIAN RIDGE
P: 12APR2024 162306 42.0S 88.0E 4.0-5.6 AAAAA So. Indian Ocean
O: 13APR2024 15:17:18 49.1S 121.4E MB=5.1 EMSC WESTERN INDIAN-ANTARCTIC RIDGE
P: 7APR2024 162044 49.0S 122.0E 4.0-5.8 CAAAA So. of Australia
ZEALANDIA AND AUSTRALIA REGION
O: 14APR2024 03:37:41 29.9S 178.7W MB=4.6 EMSC KERMADEC ISLANDS, NEW ZEALAND
P: 13APR2024 162298 30.0S 179.0W 4.0-5.6 AAAAA No. Kermadec Islands
O: 14APR2024 06:05:07 35.2S 178.9W MB=4.6 EMSC EAST OF NORTH ISLAND, N.Z.
P: 14APR2024 162298 37.0S 180.0W 3.5-5.1 ABAAA E. of North Islands N.Z.
O: 13APR2024 18:18:51 37.7S 179.6E ML=4.1 EMSC OFF E. COAST OF N. ISLAND, N.Z
P: 16APR2024 162299 38.0S 176.0E 3.0-4.4 BACAA North Island, N.Z.
JAPAN AND KURIL ISLANDS
O: 13APR2024 12:00:29 31.5N 138.3E MB=4.6 EMSC IZU ISLANDS, JAPAN REGION
P: 8APR2024 161887 31.0N 142.0E 4.0-5.6 BACAA Off East Coast Honshu
O: 13APR2024 16:29:51 44.5N 148.2E MB=4.4 EMSC KURIL ISLANDS
P: 14APR2024 162221 45.0N 147.0E 3.5-5.4 AAAAA So. Kurils
O: 14APR2024 04:50:35 45.9N 151.2E MB=4.4 EMSC KURIL ISLANDS
P: 12APR2024 162221 45.0N 151.0E 3.5-5.6 AAAAA So. Kurils
No earthquakes of M>=4 were located in Japan or the Kuril Islands today.
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 14APR2024 04:36:44 32.6N 115.7W ML=2.2 EMSC BAJA CALIFORNIA, MEXICO
P: 15APR2024 162168 32.4N 115.8W 2.5-4.8 AAAAA So. California
O: 13APR2024 16:08:38 33.4N 116.3W ML=3.4 EMSC SOUTHERN CALIFORNIA
P: 12APR2024 162169 33.4N 116.7W 2.5-4.6 AAAAA So. California
O: 14APR2024 06:47:36 35.8N 117.6W ML=2.4 EMSC CENTRAL CALIFORNIA
P: 13APR2024 162174 35.8N 117.6W 2.5-4.5 AAAAA So. California
O: 14APR2024 06:23:55 37.1N 121.5W ML=2.5 EMSC NORTHERN CALIFORNIA
P: 8APR2024 161865 37.1N 121.5W 2.5-4.5 CAAAA Central California
P: 13APR2024 162137 37.4N 121.8W 2.5-4.6 AAAAA Central California
O: 13APR2024 13:45:17 37.3N 118.5W ML=3.1 EMSC CENTRAL CALIFORNIA
P: 13APR2024 162133 37.9N 118.2W 2.5-4.6 AAAAA California/Nevada area
NEIC reported this earthquake of M 3.1 in Mammoth Lakes, California was felt with intensity up to IV in the area(s) of Mammoth Lakes, California in West Bishop.
O: 13APR2024 09:18:47 38.8N 122.8W MD=2.3 EMSC NORTHERN CALIFORNIA
P: 14APR2024 162138 38.7N 122.7W 2.5-4.6 AAAAA Central California
O: 13APR2024 13:35:10 40.3N 121.8W MD=2.3 EMSC NORTHERN CALIFORNIA
P: 14APR2024 162211 40.4N 122.2W 2.5-4.9 AAAAA Northern California
ALASKA
O: 14APR2024 03:23:02 51.1N 179.2W ML=3.6 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 15APR2024 162231 51.7N 179.7W 3.5-4.9 AAAAA Andreanoff Isls, Aleutians
O: 14APR2024 03:58:03 53.1N 166.8W ML=3.8 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 12APR2024 162237 53.7N 167.0W 3.5-5.0 AAAAA Fox Islands, Aleutians
O: 13APR2024 20:10:43 62.2N 149.7W MW=4.2 EMSC CENTRAL ALASKA
P: 14APR2024 162258 62.9N 150.2W 3.2-4.9 AAAAA Central Alaska
NEIC reported this earthquake of M 4.1 in Central Alaska was felt with intensity up to III in the area(s) of Central Alaska in Susitna North.
EMSC reported it with M 4.2 was felt with moderate intensity in Central Alaska at Talkeetna, Alaska with a loud earthquake noise.
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 13APR2024 08:57:24 46.9N 121.9W ML=2.2 EMSC WASHINGTON
P: 15APR2024 162224 47.5N 121.8W 2.0-4.4 AAAAA Washington state, U.S.
O: 13APR2024 11:21:47 56.8N 121.8W MB=4.4 ECAN WNW OF FORT ST. JOHN, BC
O: 13APR2024 11:21:48 56.8N 121.6W mb=4.1 ANSS Fort St. John Canada
O: 13APR2024 11:21:48 56.8N 121.6W ML=4.4 EMSC BRITISH COLUMBIA, CANADA
P: 5APR2024 161962 56.0N 120.0W 2.0-4.1 CABAA Alberta
ROCKY MOUNTAINS REGION
O: 13APR2024 07:30:15 31.7N 104.6W ML=2.2 EMSC WESTERN TEXAS
O: 13APR2024 18:57:38 31.7N 104.1W ML=2.9 EMSC WESTERN TEXAS
O: 13APR2024 19:30:19 31.7N 104.0W ML=2.1 EMSC WESTERN TEXAS
O: 13APR2024 21:33:05 31.7N 104.7W ML=2.1 EMSC WESTERN TEXAS
O: 14APR2024 06:38:01 32.0N 103.8W ML=2.2 EMSC WESTERN TEXAS
O: 13APR2024 20:32:57 30.9N 103.5W ML=2.7 EMSC WESTERN TEXAS
P: 15APR2024 162163 31.2N 104.1W 2.0-3.9 AAAAA SW U.S.A
O: 13APR2024 09:45:45 42.8N 111.2W ML=2.6 EMSC SOUTHERN IDAHO
P: 14APR2024 162226 43.0N 111.5W 2.0-4.4 AAAAA Yellowstone/Wyoming
O: 13APR2024 09:03:12 46.9N 112.5W ML=2.6 EMSC WESTERN MONTANA
P: 9APR2024 161960 46.4N 111.4W 2.0-4.1 BAAAA Yellowstone/Wyoming
NEIC reported this earthquake of M 2.6 in Montana was felt with intensity up to III in the area(s) of Montana in Lincoln.
EASTERN U.S./CANADA
O: 13APR2024 20:50:48 32.1N 93.4W ML=2.6 EMSC LOUISIANA
O: 13APR2024 20:50:48 32.1N 93.4W mb=2.6 ANSS NW of Edgefield Louisiana
P: 17APR2024 162179 34.0N 94.0W 2.0-3.9 BBAAA Southeast U.S.
O: 13APR2024 19:31:44 36.9N 90.4W MD=2.2 EMSC SOUTHEASTERN MISSOURI
O: 13APR2024 19:31:44 36.9N 90.4W md=2.3 ANSS ESE of Williamsville Missouri
P: 9APR2024 161880 36.7N 89.7W 2.0-3.9 BAAAA New Madrid area
P: 13APR2024 162152 37.0N 89.0W 2.0-4.0 AAAAA New Madrid area
P: 15APR2024 162152 36.3N 89.5W 2.0-4.1 AAAAA New Madrid area
O: 14APR2024 05:02:29 45.6N 67.6W MB=1.5 ANSS NW OF VANCEBORO, MAINE
P: 8APR2024 161927 47.0N 69.0W 2.0-4.1 CBAAA Maine
P: 18APR2024 162199 47.0N 69.0W 2.0-4.1 BBAAA Maine
HAWAII
No earthquakes of M>=3 were located in Hawaii.
STRONG EARTHQUAKE IN SOLOMON ISLANDS
EARTHQUAKE SUMMARY FOR APRIL 12, 2024
The strongest earthquake in the world today was an M 5.8 in the Solomon Islands. NEIC reported it was felt with intensity up to V in Kirakira, Solomon Islands.
This is the strongest earthquake within about 200 km of this epicenter since an M 6.1 on May 21, 2023 which followed an M 7.0 about 200 km northwest of this on November 22, 2022. At the time of the M 6.1 on May 21, 2023 this summary noted:
"A strong M 6.1 was also felt in the Solomon Islands today. NEIC reported it was felt with intensity V in the Solomon Islands at Kirakira Makira and Ulawa and in Honiara, Guadalcanal. This is part of a regional enhancement of seismicity following the M 7.7 and 7.2 events in the Loyalty Islands of the past two day which occurred about 15 degrees south east of this epicenter in the Solomon Islands. Today's event of M 6.1 is the strongest in the Solomon Islands within about 200 km since an M 6.3 on January 27, 2020 and an M 6.5 on September 9, 2018." (May 21, 2023)
Forecasts 162268 had expected today's earthquake within about 10 km was likely around April 15, 2024. This activity is at 145 degrees from the M 6.7 in Brazil of January 20, 2024 and at 103 degrees from the M 6.7 in the Loyalty Islands of March 27, 2024 and may have been promoted by energy from those sources.
O: 12APR2024 15:59:17 10.1S 161.0E Mw=5.8 EMSC SOLOMON ISLANDS
P: 15APR2024 162268 10.0S 161.0E 4.0-5.6 BAAAA No. of Santa Cruz Islands
An M 5.6 also occurred today in western Xizang, China today. This followed a smaller event about 300 km to the south earlier in the day on the Xizang-India border. The only event within about 200 km of today's M 5.6 in Xizang in the past 35 years was an M 5.8-6.1 on May 5, 2007. Today's event occurred near local solar noon and was probably promoted by the new moon of April 8 as it occurred near the longitude of maximum tidal stress with that alignment as noted in this and previous issues of this summary:
"The new moon arrived on April 8, 2024 at 18:21 UT. This involved a total eclipse of the sun which began in western Mexico and extend through Texas, the east-Central U.S. eastern Canada and the northeastern U.S. States of Emergency have been declared for much of the eclipse path due to expected migrations of people to view the total eclipse. Longitudes which are at local solar noon at this time are near 100 West while those at local solar midnight area near 80 East. These include areas of central North America and the East Pacific in the west and central Asia including China, India, Nepal in the East. These areas are most likely to see moderate tidal triggering at this time. Tidal enhancement of regional seismicity is possible in many areas, however, a major earthquake associated with this new moon is considered possible in the next week by this report. Minor to moderate seismic enhancement along the path through the U.S. Mexico and Canada is likely in the next week." (April 5-12, 2024)
Forecast 162186 had expected this region of Xizang would be active around April 13-15 within about 100 km of the M 4.0.
O: 12APR2024 10:25:33 30.3N 80.7E ML=4.0 EMSC WESTERN XIZANG-INDIA BORDER RE
P: 13APR2024 162186 30.0N 80.0E 3.8-5.4 AAAAA Xizang
O: 13APR2024 05:44:41 33.6N 81.9E Mw=5.6 EMSC WESTERN XIZANG
O: 12APR2024 08:47:59 33.4N 81.7E mb=4.7 EMSC WESTERN XIZANG
P: 15APR2024 162186 30.0N 82.0E 3.8-5.4 ACAAA Xizang
The strongest earthquake in the U.S. or Canada today was an M 4.0 off the coast of Northern California. NEIC reported this earthquake of M 4.0 off the coast of Northern California was felt with intensity up to III in the area(s) of Northern California in Petrolia. This is the strongest earthquake within about 100 km of this epicenter since an M 4.1 on February 10, 2023. The only earthquake with significantly larger magnitude in this region in the past half year was an M 4.9 on February 2, 2024.
Forecast 162212 had expected today's event within about 50 km of today's epicenter around April 14. This epicenter is at the fourth node (90 degrees) from the M 7.4 in Taiwan of April 2, 2024 and at the fifth node (72 degrees) from the M 7.5 in Western Honshu, Japan of January 1, 2024 and may have been promoted by energy from those sources.
O: 12APR2024 17:41:11 40.4N 125.1W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 12APR2024 17:07:30 40.4N 125.3W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 14APR2024 162212 40.5N 125.8W 2.5-4.8 AAAAA Off Coast of No. Calif
An unusually large earthquake of M 3.8 occurred in northern Mexico near Nuevo Leon. This epicenter saw the total eclipse of the sun on April 8, 2024 at 18:24 UT. It is likely that tidal stresses with that alignment helped promote the earthquake in Nuevo Leon today. The last earthquake within about 150 km of this epicenter in Nuevo Leon, Mexico with M>=3.8 occurred on March 18, 2014 with M 4.0 about 100 km south of today's epicenter. The strongest earthquake in this region in the past 35 years was an M 4.5 on April 6, 2004. Forecast 162122 had expected today's event in this region was likely around April 12.
O: 12APR2024 20:51:09 26.2N 99.8W ML=3.8 EMSC NUEVO LEON, MEXICO
P: 12APR2024 162122 26.0N 102.0W 3.0-4.7 AABAA Northern Mexico
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.
Forecast 161880 had expected today's event within about 25 km was likely around April 9.
O: 12APR2024 08:36:15 36.6N 89.8W MD=2.7 EMSC SOUTHEASTERN MISSOURI
O: 12APR2024 08:36:15 36.6N 89.8W MD=2.8 ANSS NW OF RISCO MISSOURI
P: 13APR2024 162152 37.0N 89.0W 2.0-4.0 AAAAA New Madrid area
P: 15APR2024 162152 36.3N 89.5W 2.0-4.1 BAAAA New Madrid area
An M 5.0 quake hit near the antipode of Missouri today. Forecast 162306 had expected this event within about 100 km was likely around April 12. This epicenter is at the fourth node (90 degrees) from the M 7.5 in western Honshu of January 1, 2024 and the fifth node (72 degrees) from Taiwan event of M 7.4 on April 2 and may have been promoted by energy from those sources.
O: 13APR2024 06:53:45 42.1S 88.9E mb=5.0 EMSC SOUTHEAST INDIAN RIDGE
P: 12APR2024 162306 42.0S 88.0E 4.0-5.6 AAAAA So. Indian Ocean
A new series of light earthquakes also occurred today in the region near Falls City and Stockdale, Texas with M 1.9 and 1.6. This epicenter saw the total eclipse of the sun on April 8 at 18:32 UT. This new round of seismicity in this area was probably promoted by strong tidal stresses with the eclipse. The last earthquake of M>=1.9 in this area was reported by NEIC on March 10, 2024 and as an M 3.9 on February 22, 2024, followed by an M 2.3 on February 24, 2024.
Forecast 162122 had expected today's event within about 100 km was likely around April 14.
O: 12APR2024 12:31:47 29.1N 97.9W ML=1.9 ANSS FALLS CITY TEXAS
O: 12APR2024 08:36:09 29.1N 98.0W ML=1.6 ANSS S OF STOCKDALE TEXAS
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 ABAAA Northern Mexico
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: 12APR2024 18:44:37 23.4N 120.2E Mw=4.6 EMSC TAIWAN
O: 12APR2024 14:19:58 22.3N 121.7E mb=4.6 EMSC TAIWAN REGION
P: 13APR2024 162126 24.0N 121.0E 4.0-5.4 ABAAA Taiwan
NEIC reported this earthquake of M 4.6 in Taiwan was felt with intensity up to III in the area(s) of Taiwan in Pizitou.
A second earthquake of M 4.6 in Taiwan was felt with intensity up to IV in Hengchun, Taiwan.
O: 12APR2024 10:25:33 30.3N 80.7E ML=4.0 EMSC WESTERN XIZANG-INDIA BORDER RE
P: 13APR2024 162186 30.0N 80.0E 3.8-5.4 AAAAA Xizang
O: 13APR2024 05:44:41 33.6N 81.9E Mw=5.6 EMSC WESTERN XIZANG
O: 12APR2024 08:47:59 33.4N 81.7E mb=4.7 EMSC WESTERN XIZANG
P: 15APR2024 162186 30.0N 82.0E 3.8-5.4 ACAAA Xizang
O: 12APR2024 08:13:43 41.2N 78.6E mb=5.1 EMSC SOUTHERN XINJIANG, CHINA
O: 13APR2024 05:32:25 41.3N 78.8E mb=4.1 EMSC SOUTHERN XINJIANG, CHINA
P: 16APR2024 162198 41.0N 78.0E 4.0-5.8 BAAAA Kirgizstan/Xinjiang
NEIC reported this earthquake of M 5.1 in Southern Xinjiang, China was felt with intensity up to III in the area(s) of Southern Xinjiang, China in Aykol.
EMSC reported strong shaking in Kazakhstan at Esik qalalyq akimshilik, Talgar, Almaty, Besagash, and as far as Bishkek, Kyrgyzstan.
INDONESIA AND PHILIPPINES
O: 13APR2024 06:26:36 2.3N 126.8E mb=5.2 EMSC MOLUCCA SEA
P: 11APR2024 162055 3.0N 126.0E 4.0-5.4 AAAAA Halmahera
O: 13APR2024 00:24:30 2.8S 129.4E ML=4.2 EMSC SERAM, INDONESIA
P: 8APR2024 161798 3.0S 129.0E 4.0-5.4 BAAAA Ceram area
O: 12APR2024 09:18:50 3.3S 145.6E mb=4.7 EMSC NEAR N COAST OF NEW GUINEA, PN
P: 12APR2024 162077 5.0S 144.0E 4.0-5.4 ABBAA Papua New Guinea
P: 19APR2024 162072 3.0S 146.0E 4.0-5.6 CAAAA New Ireland
O: 12APR2024 10:32:50 8.4S 119.6E ML=4.2 EMSC FLORES REGION, INDONESIA
P: 16APR2024 162067 7.0S 121.0E 4.0-5.4 BBBAA Flores Island area
CENTRAL AND SOUTH AMERICA
O: 12APR2024 16:09:33 8.0S 76.4W ML=4.1 EMSC NORTHERN PERU
P: 10APR2024 161796 9.0S 75.0W 3.5-5.4 AABAA Brazil
O: 12APR2024 20:20:50 13.4N 90.2W ML=4.2 EMSC OFFSHORE EL SALVADOR
P: 15APR2024 162094 13.0N 90.0W 3.5-5.4 BAAAA Guatemala
O: 13APR2024 01:28:34 13.9N 93.0W ML=4.0 EMSC OFF COAST OF CHIAPAS, MEXICO
P: 13APR2024 162090 14.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
O: 12APR2024 16:47:57 16.0N 98.0W ML=4.0 EMSC OFFSHORE OAXACA, MEXICO
P: 15APR2024 162105 17.0N 100.0W 3.5-5.3 BABAA Oaxaca, Mexico
O: 12APR2024 22:23:21 15.5N 96.1W ML=4.2 EMSC OFFSHORE OAXACA, MEXICO
O: 12APR2024 20:32:29 15.9N 94.7W ML=4.2 EMSC OFFSHORE OAXACA, MEXICO
O: 12APR2024 11:52:06 17.7N 95.6W ML=4.2 EMSC VERACRUZ, MEXICO
P: 14APR2024 162090 18.0N 95.0W 3.5-5.3 AAAAA Chiapas, Mexico
EMSC reported this earthquake of M 4.2 in Oaxaca, Mexico was felt with intensity up to III in the area(s) of Oaxaca, Mexico at Crucecita with a heavy rumbling sound.
O: 12APR2024 15:51:07 18.2N 73.6W ML=3.1 EMSC HAITI REGION
P: 5APR2024 161843 19.0N 73.0W 3.0-4.5 CAAAA Bahamas/No. Caribbean
O: 12APR2024 09:37:43 18.9N 107.3W ML=4.1 EMSC OFF COAST OF JALISCO, MEXICO
P: 12APR2024 162092 19.0N 107.0W 3.5-5.5 AAAAA Coast of Jalisco, Mexico
O: 12APR2024 06:55:03 19.2N 69.8W ML=3.7 EMSC DOMINICAN REPUBLIC
P: 15APR2024 162111 20.0N 71.0W 3.0-4.8 AAAAA Bahamas/No. Caribbean
O: 13APR2024 07:01:11 19.5N 66.0W MD=3.6 EMSC PUERTO RICO REGION
P: 13APR2024 162106 18.0N 67.0W 3.4-5.2 ABAAA Puerto Rico
O: 12APR2024 20:38:13 19.7N 104.5W ML=3.4 EMSC JALISCO, MEXICO
P: 13APR2024 162099 18.0N 103.0W 3.5-5.3 ABBAA Michoacan, Mexico
O: 13APR2024 00:02:58 20.8S 70.4W mb=4.0 EMSC OFFSHORE TARAPACA, CHILE
P: 12APR2024 162282 21.0S 69.0W 4.0-5.4 AAAAA Coast No. Chile
EMSC reported this earthquake of M 4.0 in Tarapaca, Chile was felt with intensity up to III in the area(s) of Tarapaca, Chile in Alto Hospicio.
O: 12APR2024 20:51:09 26.2N 99.8W ML=3.8 EMSC NUEVO LEON, MEXICO
P: 12APR2024 162122 26.0N 102.0W 3.0-4.7 AABAA Northern Mexico
O: 12APR2024 07:39:10 27.4N 111.6W ML=3.8 EMSC GULF OF CALIFORNIA
P: 15APR2024 162115 28.0N 112.0W 3.5-5.1 AAAAA Gulf of California
O: 12APR2024 21:02:54 30.1S 72.3W Mw=4.1 EMSC OFFSHORE COQUIMBO, CHILE
P: 13APR2024 162294 31.0S 70.0W 4.0-5.8 AABAA Central Chile
O: 12APR2024 22:23:21 15.5N 96.1W ML=4.2 EMSC OFFSHORE OAXACA, MEXICO
O: 12APR2024 20:32:29 15.9N 94.7W ML=4.2 EMSC OFFSHORE OAXACA, MEXICO
AFRICA AND EUROPE
O: 13APR2024 03:14:17 39.0N 23.4E ML=3.9 EMSC GREECE
O: 13APR2024 03:36:19 38.9N 23.4E ML=4.0 EMSC GREECE
O: 13APR2024 03:36:19 38.9N 23.4E ML=4.3 ANSS GREECE
P: 13APR2024 162154 37.0N 22.0E 3.0-4.4 ABAAA No. Greece
NEIC reported this earthquake of M 4.3 in Greece was felt with intensity up to III in the area(s) of Greece in Istiaia.
EMSC reported it was felt with moderate intensity at Istiaia, Skiathos, Psachna, Anilio, Chalkida, Volos, Nea Ionia, Livadeia, Itea, Acharnes, Irakleio, Llion, among others.
A number of moderate and light aftershocks were also reported to have been lightly felt in this area.
O: 12APR2024 22:18:41 71.6N 3.1W Mw=4.7 EMSC JAN MAYEN ISLAND REGION
P: 15APR2024 162263 72.0N 0.0E 3.0-4.8 BAAAA Norway
SOUTHWEST PACIFIC
O: 12APR2024 20:02:52 15.0S 167.4E mb=4.6 EMSC VANUATU
P: 17APR2024 162278 15.0S 167.0E 4.0-5.6 BAAAA Vanuatu Islands
O: 12APR2024 15:59:17 10.1S 161.0E Mw=5.8 EMSC SOLOMON ISLANDS
P: 15APR2024 162268 10.0S 161.0E 4.0-5.6 BAAAA No. of Santa Cruz Islands
OCEAN RIDGES
O: 13APR2024 06:53:45 42.1S 88.9E mb=5.0 EMSC SOUTHEAST INDIAN RIDGE
P: 12APR2024 162306 42.0S 88.0E 4.0-5.6 AAAAA So. Indian Ocean
O: 12APR2024 19:27:52 9.9N 104.5W mb=4.6 EMSC NORTHERN EAST PACIFIC RISE
P: 3APR2024 161786 9.0N 103.0W 4.0-5.4 AAAAA Central Pacific 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: 12APR2024 09:00:17 28.3N 129.3E Mw=4.9 EMSC RYUKYU ISLANDS, JAPAN
P: 4APR2024 161854 29.0N 129.0E 4.0-5.5 CAAAA Ryukyu Islands
P: 13APR2024 162118 29.0N 131.0E 4.0-5.5 AABAA Kyushu Japan
O: 12APR2024 17:07:49 34.1N 141.8E mb=4.7 EMSC OFF EAST COAST OF HONSHU, JAPA
P: 11APR2024 162160 34.0N 142.0E 4.0-5.4 AAAAA Off East Coast Honshu
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 12APR2024 09:57:37 31.4N 115.5W ML=3.0 EMSC BAJA CALIFORNIA, MEXICO
P: 15APR2024 162166 31.9N 116.3W 2.5-4.8 BAAAA So. California
O: 12APR2024 09:22:37 32.7N 115.9W ML=2.1 EMSC SOUTHERN CALIFORNIA
P: 13APR2024 162168 32.6N 116.1W 2.5-4.8 AAAAA So. California
O: 12APR2024 19:24:47 33.8N 118.2W ML=2.5 EMSC GREATER LOS ANGELES AREA, CALI
P: 13APR2024 162170 33.7N 117.5W 2.5-4.5 AAAAA So. California
NEIC reported this earthquake of M 2.6 in Los Angeles, California was felt with intensity up to III in the area(s) of Los Angeles, California in Long Beach.
EMSC reported moderate to strong shaking in California at Long Beach, Lakewood, Paramount, South Gate with slight rumble, Downey.
O: 12APR2024 23:46:00 38.1N 122.3W MD=2.2 EMSC SAN FRANCISCO BAY AREA, CALIF.
P: 13APR2024 162137 37.9N 122.0W 2.5-4.8 AAAAA Central California
O: 12APR2024 16:42:20 38.8N 122.8W MD=2.2 EMSC NORTHERN CALIFORNIA
O: 12APR2024 22:17:42 38.8N 122.5W MD=2.4 EMSC NORTHERN CALIFORNIA
P: 14APR2024 162138 38.7N 122.7W 2.5-4.6 AAAAA Central California
O: 12APR2024 18:21:42 40.2N 122.1W MD=2.9 EMSC NORTHERN CALIFORNIA
P: 14APR2024 162211 40.4N 122.2W 2.5-4.9 AAAAA Northern California
NEIC reported this earthquake of M 2.9 in Northern California was felt with intensity up to III in the area(s) of Northern California in Red Bluff.
O: 12APR2024 17:41:11 40.4N 125.1W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 12APR2024 17:07:30 40.4N 125.3W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 14APR2024 162212 40.5N 125.8W 2.5-4.8 AAAAA Off Coast of No. Calif
ALASKA
No events of M>=3 were located in Alaska today.
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 13APR2024 03:49:12 48.1N 123.5W ML=2.2 EMSC OLYMPIC PENINSULA, WASHINGTON
P: 13APR2024 162225 48.0N 123.0W 2.0-4.3 AAAAA Washington state, U.S.
ROCKY MOUNTAINS REGION
O: 12APR2024 12:38:20 35.3N 101.8W ML=2.2 EMSC TEXAS PANHANDLE REGION
P: 15APR2024 162141 37.0N 105.2W 2.0-4.1 BBCAA Colorado area
O: 13APR2024 05:48:42 32.7N 104.4W ML=2.8 EMSC NEW MEXICO
O: 13APR2024 04:23:53 32.6N 104.4W ML=2.5 EMSC NEW MEXICO
P: 15APR2024 162163 31.2N 104.1W 2.0-3.9 ABAAA SW U.S.A
NEIC reported this earthquake of M 2.5 in Western Texas was felt with intensity up to III in the area(s) of Western Texas in Atoka, New Mexico.
O: 12APR2024 07:14:42 37.6N 112.3W ML=2.1 EMSC UTAH
P: 13APR2024 162184 37.0N 111.8W 2.0-4.0 AAAAA Utah area
EASTERN U.S./CANADA
O: 11APR2024 23:58:21 68.8N 69.4W MB=3.1 ECAN OF CLYDE RIVER, NU
O: 11APR2024 22:51:43 72.0N 75.0W MB=2.8 ECAN OF POND INLET, NU
P: 9APR2024 161997 71.0N 75.0W 2.5-4.0 AAAAA Baffin/Davis Strait Canada
P: 9APR2024 161997 73.3N 73.5W 2.5-4.1 ABAAA Baffin/Davis Strait Canada
O: 12APR2024 12:31:47 29.1N 97.9W ML=1.9 ANSS FALLS CITY TEXAS
O: 12APR2024 08:36:09 29.1N 98.0W ML=1.6 ANSS S OF STOCKDALE TEXAS
P: 14APR2024 162122 28.0N 98.0W 3.0-4.4 ABAAA Northern Mexico
O: 12APR2024 18:56:12 35.9N 95.1W ML=2.0 EMSC OKLAHOMA
P: 13APR2024 162180 35.0N 96.0W 2.0-4.1 AAAAA Southern Plains
O: 12APR2024 08:36:15 36.6N 89.8W MD=2.7 EMSC SOUTHEASTERN MISSOURI
O: 12APR2024 08:36:15 36.6N 89.8W MD=2.8 ANSS NW OF RISCO MISSOURI
P: 13APR2024 162152 37.0N 89.0W 2.0-4.0 AAAAA New Madrid area
P: 15APR2024 162152 36.3N 89.5W 2.0-4.1 BAAAA New Madrid area
O: 12APR2024 09:20:00 40.7N 74.7W ML=1.8 ANSS GLADSTONE NEW JERSEY
O: 12APR2024 13:05:04 40.7N 74.7W ML=1.9 ANSS GLADSTONE NEW JERSEY
P: 13APR2024 162206 40.0N 74.0W 2.0-4.3 AAAAA New England
HAWAII
No earthquakes of M>=3 were located in Hawaii.
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