STRONG QUAKE SHAKES PANAMA AND COSTA RICA

 

EARTHQUAKE SUMMARY FOR JULY 21, 2021

 

The strongest earthquake in the world today occurred in the area south of Panama with M 6.7. It was widely felt with strong intensity in Panama. NEIC reported intensity VIII (with damage) in Panama at Boqueron and VII in Burica, Puerto Armuelles; V in La Concepcion, David, Progreso; IV in Finca, Bagala, Las Lomas and Ouiteno. A series of moderate aftershocks were also felt in the area. At M 6.7 this is the strongest earthquake in the world since the M 7.4 in Qinghai, China on May 21, 2021. The only earthquakes with M>=6.7 within about 250 km of this epicenter in the past 30 years occurred about 250 km to the north on August 20, 1999 and about 200 km to the south on March 31, 1999. Today's activity follows a series of moderate and large earthquakes in the area as noted in the previous issue of this summary:

 

"The series of earthquakes in Panama and Costa Rica also continued today. This has included an moderate quakes in Costa Rica on July 14, 2021 and an M 6.1 south of Panama on July 17 as noted at the time in this summary:

 

 

"The strongest earthquake in the world today was an M 6.1 south of Panama. NEIC reported it was felt with maximum intensity IV in Panama at Cerro Sombrero; IV in San Andres and II-III in Puerto Armuelles, Guarumal, Pedregal, David, Quiterio, Tole, Petrerillos and Golfito, Panama.  This is the strongest event in the area south of Panama within about 200 km since an M 6.6 on January 7, 2015. An M 6.2 also occurred about 200 km north of today's epicenter on June 26, 2019.

Forecast 135406 had expected today's event within about 50 km was likely

around July 19." (July 17, 2021, July 21, 2021)

 

Forecasts 135652 and 135406 had expected today's activity was likely within about 100 km between July 19 and 25.

 

O: 21JUL2021 21:15:14   7.4N   82.9W Mw=6.7  EMSC   SOUTH OF PANAMA              

O: 22JUL2021 02:51:05   7.2N   83.0W mb=4.7  EMSC   OFF COAST OF COSTA RICA

O: 21JUL2021 22:25:58   7.4N   82.7W mb=4.9  EMSC   SOUTH OF PANAMA

O: 21JUL2021 21:34:39   7.8N   82.8W mb=4.7  EMSC   SOUTH OF PANAMA

O: 21JUL2021 21:55:35   8.2N   82.9W ML=4.0  EMSC   PANAMA-COSTA RICA BORDER REGION

P: 25JUL2021 135652     7.0N   82.0W 3.5-6.1 BAAAA  Costa Rica                 

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 AAAAA  Costa Rica                 

 

An earthquake of M 5.9 also occurred in the series in the Bismarck Sea, Indonesia today. This is the strongest event in this sequence to date. Earthquakes of M 5.7 and 5.8 hit the area on July 19. At the time this summary noted:

 

"The M 5.8 in the Bismarck Sea occurred near local solar midnight and may have been promoted by high tidal stresses which maximize near this hour and by geomagnetic effects from the moderate geomagnetic storm of two days ago. The last earthquake of equal or greater magnitude in the Bismarck Sea occurred as an M 6.1 on April 27, 2021 about 150 km to the west of today's epicenter. An M 6.3 also occurred in this area on February 7, 2021. Forecast 135420 had expected today's activity in the Bismarck Sea within about 50 km of these epicenter was likely around July 19." (July 19-20, 2021)

 

Like the activity on July 19, the mainshock today of M 5.9 also occurred  within minutes of local solar midnight and was likely promoted by high tidal stresses. These may have been enhanced by high tides associated with the coming full moon as this epicenter is near the maximum longitude for these tides as described in this summary:

 

 

"The full moon will arrive on July 24 at 02:37 UT. Longitudes which are at local solar midnight at this time are near 40 West and those at local solar noon near 140 East. These include, in the west, the Atlantic Ocean basin and in the east, the western Pacific subduction zone including Japan and portions of Eastern Indonesia. These areas are currently active and could see a strong earthquake in the next week." (July 20-21, 2021)

 

 

O: 21JUL2021 14:26:01   3.4S  146.7E Mw=5.9  EMSC   BISMARCK SEA

O: 21JUL2021 23:07:46   3.2S  146.7E mb=4.8  EMSC   BISMARCK SEA                 

P: 19JUL2021 135420     3.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

The strongest earthquake in the U.S. or Canada today was an M 4.4 off the coast of Northern California. NEIC reported it was felt along the coast of Northern California with intensity II-III in Petrolia, Ferndale, Rio Dell, Fortuna, Carlotta, Eureka, Baside, Arcata and McKinleyville. NEIC reported an aftershock of M 2.8 off northern California  was felt with intensity II-III in the area(s) of northern California in Arcata and Redwood City. This event, the third largest in the area in the past year (after events of M 4.5 and 4.7 on January 12 and March 30, 2021), appears to be an aftershock of the M 5.1 which hit this epicenter on July 18. At the time this summary noted in this regard:

 

 

"Today's event is the largest in this area off the coast of Northern California in more than a year. Similar events have last occurred in the area as an M 5.2 on March 18, 2020, an M 5.8 on March 9, 2020 and an M 4.6 on June 23, 2019 after a four year lull following an M 5.7 on September 3, 2016. Forecast 135552 had expected today's event within about 25 km was likely in mid-July." (July 18, 2021)

 

 

O: 21JUL2021 10:36:37  40.4N  124.9W ML=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 21JUL2021 12:25:57  40.5N  124.7W ML=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 21JUL2021 10:05:30  40.3N  124.4W ML=3.8  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 21JUL2021 10:05:30  40.3N  124.4W ML=4.4  ANSS   OFFSHORE NORTHERN CALIFORNIA

P: 15JUL2021 135552    40.2N  124.2W 2.5-4.4 CAAAA  Off Coast of No. Calif     

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: 22JUL2021 02:12:27  30.1N   70.4E mb=4.5  EMSC   PAKISTAN                     

P: 17JUL2021 135470    29.0N   68.0E 3.5-4.9 BBBAA  Pakistan                   

 

O: 22JUL2021 01:12:50  49.5N  106.9E mb=4.2  EMSC   CENTRAL MONGOLIA             

P: 23JUL2021 135797    45.0N  102.0E 4.0-5.4 ACCAA  Mongolia                   

 

NEIC reported this earthquake of M 4.2 in Mongolia was felt with intensity II-III in the area(s) of Mongolia at Ulaanbaatar and Nalajin Tov.

 

O: 21JUL2021 07:35:11  51.5N  100.4E mb=3.8  EMSC   RUSSIA-MONGOLIA BORDER REGION

P: 21JUL2021 135584    51.0N   98.0E 3.0-4.4 AABAA  So. Siberia                

 

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

 

INDONESIA AND PHILIPPINES

 

O: 21JUL2021 18:14:07   2.9S  119.4E ML=4.4  EMSC   SULAWESI, INDONESIA

O: 21JUL2021 21:08:11   2.9S  119.4E ML=4.1  EMSC   SULAWESI, INDONESIA

O: 21JUL2021 17:43:58   3.0S  119.4E Mw=5.2  EMSC   SULAWESI, INDONESIA          

P: 23JUL2021 135675     4.0S  123.0E 4.0-5.4 AACAA  Sulawesi area              

 

NEIC reported this earthquake of M 5.2 in Polewali, Sulawesi, Indonesia was felt with intensity II-III in the area(s) of Polewali, Sulawesi, Indonesia.

 

O: 22JUL2021 03:20:40   0.5N  100.1E ML=4.0  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 15JUL2021 135410     1.0N  100.0E 4.0-5.4 CAAAA  So. Sumatera               

P: 25JUL2021 135657     2.0N   99.0E 4.0-5.4 BBAAA  So. Sumatera               

 

 

O: 21JUL2021 14:26:01   3.4S  146.7E Mw=5.9  EMSC   BISMARCK SEA

O: 21JUL2021 23:07:46   3.2S  146.7E mb=4.8  EMSC   BISMARCK SEA                 

P: 19JUL2021 135420     3.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

O: 21JUL2021 09:10:22   4.6N   96.4E ML=4.4  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 17JUL2021 135410     2.0N   96.0E 4.0-5.6 BCAAA  Nicobar Islands            

 

O: 22JUL2021 01:31:45   7.7S  127.8E ML=4.3  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 24JUL2021 135660     7.0S  127.0E 4.0-5.4 AAAAA  Banda Sea                  

 

 

CENTRAL AND SOUTH AMERICA

 

O: 21JUL2021 15:07:35   5.2S   79.0W mb=4.9  EMSC   NORTHERN PERU                

P: 24JUL2021 135669     6.0S   79.0W 4.0-5.5 BAAAA  No. Peru                   

 

NEIC reported this earthquake of M 4.9 in northern Peru was felt with intensity VI in the area(s) of northern Peru  at San Ignacio.

 

O: 21JUL2021 16:44:14   7.0N   73.0W mb=4.2  EMSC   NORTHERN COLOMBIA            

P: 21JUL2021 135405     7.0N   73.0W 4.0-5.4 AAAAA  Colombia                   

 

O: 21JUL2021 21:15:14   7.4N   82.9W Mw=6.7  EMSC   SOUTH OF PANAMA              

O: 22JUL2021 02:51:05   7.2N   83.0W mb=4.7  EMSC   OFF COAST OF COSTA RICA

O: 21JUL2021 22:25:58   7.4N   82.7W mb=4.9  EMSC   SOUTH OF PANAMA

O: 21JUL2021 21:34:39   7.8N   82.8W mb=4.7  EMSC   SOUTH OF PANAMA

O: 21JUL2021 21:55:35   8.2N   82.9W ML=4.0  EMSC   PANAMA-COSTA RICA BORDER REGION

P: 25JUL2021 135652     7.0N   82.0W 3.5-6.1 BAAAA  Costa Rica                 

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 AAAAA  Costa Rica                 

 

O: 21JUL2021 09:11:45   7.6N   80.8W ML=4.0  EMSC   PANAMA                       

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 AAAAA  Costa Rica                 

 

O: 21JUL2021 10:56:30   9.6N   84.1W ML=4.0  EMSC   COSTA RICA                   

P: 29JUL2021 135652     9.0N   83.0W 3.5-4.9 CAAAA  Costa Rica                 

P: 31JUL2021 135680    10.0N   84.0W 3.5-5.4 DAAAA  Caribbean Sea              

 

O: 22JUL2021 02:16:36  11.3N   87.0W ML=4.2  EMSC   NEAR COAST OF NICARAGUA

O: 22JUL2021 01:28:24  11.5N   86.8W Mw=5.3  EMSC   NEAR COAST OF NICARAGUA

O: 22JUL2021 01:35:03  11.3N   87.0W ML=4.3  EMSC   NEAR COAST OF NICARAGUA      

P: 19JUL2021 135450    12.0N   88.0W 3.5-5.2 BAAAA  Nicaragua                  

 

NEIC reported this earthquake of M 5.3 in Nicaragua was felt with intensity II-III in the area(s) of Nicaragua at Managua.

 

O: 22JUL2021 01:02:14  12.9N   90.5W ML=4.0  EMSC   OFF THE COAST OF EL SALVADOR 

P: 24JUL2021 135684    14.0N   90.0W 3.5-5.4 ABAAA  Guatemala                  

 

O: 21JUL2021 12:16:32  14.2N   92.8W ML=4.5  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 21JUL2021 135440    14.0N   92.0W 3.5-5.3 AAAAA  Guatemala                  

 

O: 21JUL2021 13:07:43  15.3N   93.5W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 24JUL2021 135682    15.0N   93.0W 3.5-5.2 BAAAA  Chiapas, Mexico            

 

 

O: 21JUL2021 17:22:55  17.9N   67.1W ML=3.0  EMSC   PUERTO RICO REGION

O: 22JUL2021 06:42:42  18.0N   67.1W Md=3.1  EMSC   PUERTO RICO REGION

O: 22JUL2021 04:16:41  18.2N   67.2W Md=3.2  EMSC   MONA PASSAGE, PUERTO RICO    

P: 24JUL2021 135697    18.0N   67.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 21JUL2021 11:17:36  19.0N   68.3W ML=3.5  EMSC   DOMINICAN REPUBLIC REGION    

P: 21JUL2021 135456    18.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                

 

 

O: 21JUL2021 19:37:43  19.1N   66.0W ML=3.2  EMSC   PUERTO RICO REGION

O: 21JUL2021 19:41:22  19.2N   66.0W Md=3.2  EMSC   PUERTO RICO REGION

O: 21JUL2021 19:55:44  19.2N   66.0W Md=3.4  EMSC   PUERTO RICO REGION

O: 21JUL2021 19:10:59  19.1N   66.0W ML=3.4  EMSC   PUERTO RICO REGION           

P: 21JUL2021 135461    20.0N   66.0W 3.0-5.0 AAAAA  Bahamas/No. Caribbean      

 

O: 22JUL2021 03:29:41  21.9S   68.6W mb=4.4  EMSC   ANTOFAGASTA, CHILE

O: 21JUL2021 16:23:56  21.7S   68.6W Mw=4.9  EMSC   ANTOFAGASTA, CHILE           

P: 20JUL2021 135617    21.0S   67.0W 4.0-5.4 AABAA  Argentina                  

 

NEIC reported this earthquake of M 4.9 in Northern Chile was felt with intensity II-III in the area(s) of Northern Chile at Iquique, Tarapaca.

 

O: 21JUL2021 16:23     21.7S   68.7W mb=4.8  GUC    Tarapaca at Alto Hospicio, Iqu

P: 20JUL2021 135617    21.0S   67.0W 4.0-5.4 AABAA  Argentina                  

 

GUC reported this earthquake was felt with intensity  III in Tarapaca at Alto Hospicio, Iquique and in Quillagua, Antofagasta, Chile.

 

O: 21JUL2021 02:02     20.9S   69.8W mb=4.2  GUC    Tarapaca at Alto Hospicio, El

P: 21JUL2021 135628    20.0S   70.0W 4.0-5.5 AAAAA  So. Peru/Bolivia           

 

GUC reported this earthquake was felt with intensity  III in Tarapaca at Alto Hospicio, El Loa, Iquique, II in Pica, Chile.

 

 

O: 22JUL2021 02:51:05   7.2N   83.0W mb=4.7  EMSC   OFF COAST OF COSTA RICA

O: 21JUL2021 22:25:58   7.4N   82.7W mb=4.9  EMSC   SOUTH OF PANAMA

O: 21JUL2021 21:34:39   7.8N   82.8W mb=4.7  EMSC   SOUTH OF PANAMA

O: 21JUL2021 21:55:35   8.2N   82.9W ML=4.0  EMSC   PANAMA-COSTA RICA BORDER REGION

 

 

 

 

AFRICA AND EUROPE

 

O: 22JUL2021 00:48:01  38.9N   26.1E mb=4.3  EMSC   NEAR THE COAST OF WESTERN TURKEY

O: 22JUL2021 01:20:21  38.9N   26.1E mb=4.1  EMSC   NEAR THE COAST OF WESTERN TURKEY

O: 21JUL2021 23:03:45  38.9N   26.1E mb=4.0  EMSC   NEAR THE COAST OF WESTERN TURK

P: 27JUL2021 135722    38.0N   26.0E 3.0-4.6 CAAAA  Aegean Sea                 

 

NEIC reported this earthquake of M 4.3 in western Turkey was felt with intensity II-III in the area(s) of Lesvos, Greece.

 

SOUTHWEST PACIFIC

 

O: 22JUL2021 02:24:58  14.9S  166.9E Mw=5.5  EMSC   VANUATU                      

P: 28JUL2021 135870    15.0S  168.0E 4.0-5.4 CAAAA  Vanuatu Islands            

 

O: 21JUL2021 15:20:19  18.1S  177.9W mb=4.3  EMSC   FIJI REGION                  

P: 18JUL2021 135614    19.0S  178.0W 4.0-5.6 BAAAA  Tonga Islands              

 

O: 21JUL2021 09:24:25  20.3S  177.6W mb=4.4  EMSC   FIJI REGION                  

P: 18JUL2021 135614    19.0S  178.0W 4.0-5.6 BBAAA  Tonga Islands              

 

OCEAN RIDGES

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 21JUL2021 13:48:26  27.6S  178.5W mb=4.5  EMSC   KERMADEC ISLANDS REGION      

P: 27JUL2021 135875    28.0S  177.0W 4.0-5.4 CAAAA  No. Kermadec Islands       

 

O: 21JUL2021 18:52:06  32.3S  179.5E ML=4.5  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 16JUL2021 135636    33.0S  178.0E 4.0-5.6 BAAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 21JUL2021 17:18:30  37.6N  141.7E ML=3.9  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 24JUL2021 135756    37.0N  141.0E 4.0-5.4 BAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 22JUL2021 00:56:01  38.2N  122.5W Md=2.8  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 24JUL2021 135734    37.8N  122.6W 2.5-4.6 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.8 in the San Francisco Bay, California was felt with intensity II-III in the area(s) of the San Francisco Bay, California at San Rafael, Vallejo, San Francisco, Dixon and Los Banos.

 

O: 21JUL2021 11:58:17  38.4N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA            

P: 23JUL2021 135729    38.7N  119.7W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 22JUL2021 05:50:30  40.4N  125.7W ML=2.5  EMSC   OFF COAST OF NORTHERN CALIFORN

P: 26JUL2021 135806    41.8N  126.9W 2.5-4.8 BBAAA  Off Coast of No. Calif     

 

O: 21JUL2021 08:08:27  40.5N  119.7W ml=2.2  EMSC   NEVADA                       

P: 21JUL2021 135531    40.2N  119.6W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 22JUL2021 03:50:14  32.8N  115.5W ML=2.5  EMSC   SOUTHERN CALIFORNIA

O: 22JUL2021 04:29:19  32.8N  115.5W ML=2.8  EMSC   SOUTHERN CALIFORNIA

O: 22JUL2021 04:37:05  32.8N  115.5W Ml=2.1  EMSC   SOUTHERN CALIFORNIA

O: 22JUL2021 01:59:32  33.0N  115.5W Ml=2.3  EMSC   SOUTHERN CALIFORNIA

O: 22JUL2021 06:50:51  33.0N  115.5W Ml=2.0  EMSC   SOUTHERN CALIFORNIA

O: 22JUL2021 03:48:11  32.8N  115.5W ML=2.6  EMSC   SOUTHERN CALIFORNIA          

P: 21JUL2021 135511    32.6N  116.1W 2.5-4.6 AAAAA  So. California             

 

NEIC reported these earthquakes of M 3.1, 3.0, 3.1 in Southern California were felt with intensity II-III in the area(s) of Southern California at Heber, El Centro, Mexicali, Imperial, Thermal and San Diego.

 

O: 21JUL2021 18:13:07  38.1N  118.1W ML=2.4  EMSC   NEVADA

O: 21JUL2021 18:13:07  38.1N  118.1W ML=2.4  EMSC   NEVADA

O: 21JUL2021 21:25:32  38.1N  118.0W ML=2.5  EMSC   NEVADA

O: 21JUL2021 21:25:32  38.1N  118.0W ML=2.5  EMSC   NEVADA

O: 21JUL2021 07:28:47  38.2N  118.3W ml=2.3  EMSC   NEVADA

O: 21JUL2021 12:04:18  38.2N  118.2W ML=3.7  EMSC   NEVADA

O: 21JUL2021 15:22:59  38.2N  118.3W ml=2.4  EMSC   NEVADA

O: 21JUL2021 21:24:32  38.2N  118.7W ml=2.5  EMSC   NEVADA

O: 21JUL2021 21:24:32  38.2N  118.7W ml=2.5  EMSC   NEVADA

O: 21JUL2021 13:14:29  38.1N  118.0W ml=2.0  EMSC   NEVADA                       

P: 25JUL2021 135728    37.9N  118.2W 2.5-4.9 BAAAA  California/Nevada area     

 

O: 21JUL2021 14:00:48  38.4N  119.5W Md=2.3  EMSC   CENTRAL CALIFORNIA

O: 21JUL2021 09:36:13  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 21JUL2021 11:26:50  38.5N  119.4W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 21JUL2021 14:14:42  38.5N  119.4W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 21JUL2021 23:02:00  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 21JUL2021 23:33:38  38.5N  119.5W ML=3.0  EMSC   CENTRAL CALIFORNIA

O: 22JUL2021 01:56:34  38.5N  119.4W MD=2.1  EMSC   CENTRAL CALIFORNIA

O: 22JUL2021 06:38:45  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 22JUL2021 03:12:02  38.8N  119.8W ML=2.5  EMSC   NORTHERN CALIFORNIA          

P: 23JUL2021 135729    38.7N  119.7W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 21JUL2021 21:56:14  38.8N  122.8W Md=2.3  EMSC   NORTHERN CALIFORNIA

O: 21JUL2021 07:51:39  38.8N  122.9W Md=2.3  EMSC   NORTHERN CALIFORNIA          

P: 19JUL2021 135486    38.7N  122.7W 2.5-4.4 AAAAA  Central California         

 

O: 21JUL2021 10:36:37  40.4N  124.9W ML=2.6  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 21JUL2021 12:25:57  40.5N  124.7W ML=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 21JUL2021 10:05:30  40.3N  124.4W ML=3.8  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 21JUL2021 10:05:30  40.3N  124.4W ML=4.4  ANSS   OFFSHORE NORTHERN CALIFORNIA

P: 15JUL2021 135552    40.2N  124.2W 2.5-4.4 CAAAA  Off Coast of No. Calif     

 

ALASKA

 

O: 21JUL2021 11:03:42  51.8N  177.9W mb=4.3  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 26JUL2021 135823    51.6N  177.6W 3.5-5.1 BAAAA  Andreanoff Isls, Aleutians 

 

O: 22JUL2021 01:40:12  54.7N  161.1W ML=3.5  EMSC   ALASKA PENINSULA             

P: 25JUL2021 135840    54.7N  161.2W 3.5-4.9 BAAAA  Unimak Islands, Aleutians  

 

O: 21JUL2021 15:12:14  61.4N  150.0W ML=3.6  EMSC   SOUTHERN ALASKA              

P: 18JUL2021 135592    61.3N  150.9W 3.2-5.1 BAAAA  Central Alaska             

P: 20JUL2021 135590    60.8N  151.7W 3.2-5.3 AAAAA  Central Alaska             

 

NEIC reported this earthquake of M 3.3 in Southern Alaska was felt with intensity II-III in the area(s) of Southern Alaska at Wasilla, Elmendorf AFB, Anchorage, Willow.

 

O: 22JUL2021 05:30:15  62.9N  148.4W ML=3.2  EMSC   CENTRAL ALASKA               

P: 24JUL2021 135847    62.7N  149.3W 3.2-5.2 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: 21JUL2021 08:49:39  44.3N  115.2W Ml=2.2  EMSC   SOUTHERN IDAHO               

P: 17JUL2021 135542    44.4N  115.1W 2.0-4.1 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 21JUL2021 17:19:01  29.2N   97.7W mb=2.7  EMSC   SOUTHERN TEXAS               

P: 26JUL2021 135714    28.0N   97.0W 3.0-4.4 BBAAA  Northern Mexico            

 

NEIC reported this earthquake of M 3.1 in Southern Texas was felt with intensity II-III in the area(s) of Southern Texas at Stockdale, San Antonio and Corpus Christi.

 

O: 21JUL2021 13:54:39  36.1N   99.2W ML=2.5  EMSC   OKLAHOMA                     

P: 26JUL2021 135778    36.0N   98.0W 2.0-4.1 BAAAA  Southern Plains            

 

O: 22JUL2021 02:09:23  36.4N   97.8W ML=2.0  EMSC   OKLAHOMA                     

P: 18JUL2021 135524    37.0N   98.0W 2.0-3.9 BAAAA  Southern Plains            

 

O: 22JUL2021 01:05:34  49.6N   67.7W MB=1.4  ECAN Baie-Comeau, QC                

P: 24JUL2021 135796    49.3N   67.5W 2.0-3.9 AAAAA  Maine                      

 

O: 21JUL2021 03:18:30  49.3N   66.3W MB=2.5  ECAN Sainte-Anne-des-Monts, QC      

P: 18JUL2021 135534    49.0N   66.0W 2.0-4.0 BAAAA  E. of Maine                

 

O: 20JUL2021 09:09:35  47.7N   70.0W MB=1.8  ECAN  Charlevoix Seismic Zone       

O: 20JUL2021 09:06:19  47.7N   70.0W MB=0.8  ECAN   Charlevoix Seismic Zone      

P: 17JUL2021 135534    47.0N   70.0W 2.0-3.9 BAAAA  E. of Maine                

 

HAWAII

 

O: 22JUL2021 02:11:03  19.4N  155.3W ML=3.7  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2021 20:30:28  19.2N  155.4W Ml=3.1  EMSC   ISLAND OF HAWAII, HAWAII      

P: 25JUL2021 135708    19.3N  155.1W 4.0-5.6 BAAAA  Hawaii area                

 

NEIC reported this earthquake of M 3.4 in Hawaii was felt with intensity II-III in the area(s) of Hawaii at Volcano, Pahoa, Pahaa and Laupahoehoe.

An earlier event of M 3.2 was felt in Hawaii at Naalehu and Kaupakaka.

 

 

 

 

 

 

 

 

 

 

 

 

MODERATE QUAKES IN TRISTAN DA CUNHA; PAKISTAN

 

EARTHQUAKE SUMMARY FOR JULY 20, 2021

 

The most unusual earthquake located in the world today was an M 5.0 in the area of the South Atlantic near Tristan da Cunha. It was not reported felt in this remote area. The last earthquake within about 300 km of today's epicenter with M>=5 occurred as a series (M 5.0, 5.4, 5.2) on January 15, 2021 and prior to that an M 5.9 on August 31, 2020.

 

O: 21JUL2021 02:19:04  35.4S   15.8W mb=5.0  EMSC   TRISTAN DA CUNHA REGION      

 

An M 5.1 also occurred in Pakistan today.  NEIC reported this earthquake of M 5.1 in Pakistan was felt with intensity II-III in the area(s) of Pakistan with V in Jampur, IV in Rajanpur, Dajal, and Muzaffargarh, Punjab and II-III in Dera Ghazi and Kashmor.  The only earthquake within about 250 km of this event with M>=5.1 in the past year was an M 5.5 about 300 km to the northwest on November 14, 2020. The last within 250 km were of M 5.2 on June 17, 2018 and an M 5.3 on October 23, 2015. Forecast 135470 had expected this epicenter would be active around July 17.

 

O: 20JUL2021 23:54:26  29.3N   70.1E Mw=5.1  EMSC   PAKISTAN                     

P: 17JUL2021 135470    29.0N   68.0E 3.5-4.9 BABAA  Pakistan                   

 

Moderate, but not unusual earthquakes of M 5.1 and 5.2 also occurred today in Indonesia and Mindanao, Philippines. An active swarm in Sulawesi, Indonesia today included several M 4.1 events and may expand in coming days. These had been expected within about 150 km in forecasts 135404 and 135412 in mid-July.

 

O: 20JUL2021 20:26:46   5.6N  126.8E Mw=5.2  EMSC   MINDANAO, PHILIPPINES        

P: 19JUL2021 135404     7.0N  126.0E 4.0-5.4 ABAAA  Central Philippines        

 

O: 21JUL2021 04:33:35   7.5S  128.3E mb=5.1  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 17JUL2021 135412     8.0S  128.0E 4.0-5.6 BAAAA  Banda Sea                  

 

O: 21JUL2021 05:39:03   2.9S  119.4E ML=4.1  EMSC   SULAWESI, INDONESIA

O: 20JUL2021 21:40:29   2.9S  119.3E ML=4.1  EMSC   SULAWESI, INDONESIA           

P: 16JUL2021 135401     0.0N  120.0E 4.0-5.4 BCAAA  Celebes Sea                

 

An earthquake of M 4.4 in the Ryukyu Islands today continued moderate seismicity in that area. It was reported by JMA to have been lightly felt in Okinawa, Japan. This activity appears to be related to the passage of  Typhoon In-Fa through the area as previously noted in this summary:

 

"Typhoon In-Fa continued today south of Honshu, Japan with winds up to 115 kts. It is expected to track to the northwest reaching the Central Ryukyu Islands and Taiwan around July 21. Some seismic enhance is likely in these areas at that time." (July 18-21, 2021)

 

Forecast 135472 had expected this event was likely in mid-July within about

50 km of today's epicenter.

 

O: 20JUL2021 13:33:56  25.8N  128.3E mb=4.4  EMSC   RYUKYU ISLANDS, JAPAN        

P: 16JUL2021 135472    26.0N  129.0E 4.0-5.6 BAAAA  Ryukyu Islands             

 

The series of earthquakes in Panama and Costa Rica also continued today. This has included an moderate quakes in Costa Rica on July 14, 2021 and an M 6.1 south of Panama on July 17 as noted at the time in this summary:

 

 

"The strongest earthquake in the world today was an M 6.1 south of Panama. NEIC reported it was felt with maximum intensity IV in Panama at Cerro Sombrero; IV in San Andres and II-III in Puerto Armuelles, Guarumal, Pedregal, David, Quiterio, Tole, Petrerillos and Golfito, Panama. This is the strongest event in the area south of Panama within about 200 km since an M 6.6 on January 7, 2015. An M 6.2 also occurred about 200 km north of today's epicenter on June 26, 2019.

Forecast 135406 had expected today's event within about 50 km was likely around July 19." (July 17, 2021)

 

 

O: 21JUL2021 03:28:59   9.8N   81.1W ML=3.9  EMSC   PANAMA                        

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 ACAAA  Costa Rica                 

 

NEIC reported the earthquake of M 3.9 in Costa Rica was felt with intensity II-III in the area(s) of Costa Rica at Saltrillos, San Antonio (V); San Jose, San Rafael (IV) and Pattara, San Felipe, Tobosi, Curridabat, San Pedro and Escazu, San Jose.

 

O: 20JUL2021 23:57:14   9.8N   84.1W mb=3.9  EMSC   COSTA RICA                   

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 ACBAA  Costa Rica                 

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: 20JUL2021 23:16:43  23.7N   65.7E mb=4.1  EMSC   OFF COAST OF PAKISTAN        

P: 17JUL2021 135470    29.0N   68.0E 3.5-4.9 BCBAA  Pakistan                   

 

O: 20JUL2021 19:01:23  27.8N  103.0E mb=4.3  EMSC   SICHUAN-YUNNAN-GUIZHOU RG, CHI

P: 21JUL2021 135469    28.0N  101.0E 4.0-5.5 AABAA  Myanmar                     

 

O: 20JUL2021 23:54:26  29.3N   70.1E Mw=5.1  EMSC   PAKISTAN                     

P: 17JUL2021 135470    29.0N   68.0E 3.5-4.9 BABAA  Pakistan                   

 

INDONESIA AND PHILIPPINES

 

O: 21JUL2021 02:18:06   1.8N  127.4E ML=4.1  EMSC   HALMAHERA, INDONESIA         

P: 21JUL2021 135408     3.0N  128.0E 4.0-5.4 ABAAA  Halmahera                  

 

O: 21JUL2021 05:39:03   2.9S  119.4E ML=4.1  EMSC   SULAWESI, INDONESIA

O: 20JUL2021 21:40:29   2.9S  119.3E ML=4.1  EMSC   SULAWESI, INDONESIA           

P: 16JUL2021 135401     0.0N  120.0E 4.0-5.4 BCAAA  Celebes Sea                

 

O: 21JUL2021 06:59:51   4.6N   96.3E ML=4.5  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 17JUL2021 135410     2.0N   96.0E 4.0-5.6 BCAAA  Nicobar Islands            

 

O: 20JUL2021 20:26:46   5.6N  126.8E Mw=5.2  EMSC   MINDANAO, PHILIPPINES        

P: 19JUL2021 135404     7.0N  126.0E 4.0-5.4 ABAAA  Central Philippines        

 

O: 20JUL2021 12:20:00   6.6S  130.0E ML=4.0  EMSC   BANDA SEA                    

P: 14JUL2021 135432     7.0S  131.0E 4.0-5.4 CAAAA  West Irian, PNG            

 

O: 21JUL2021 04:33:35   7.5S  128.3E mb=5.1  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 17JUL2021 135412     8.0S  128.0E 4.0-5.6 BAAAA  Banda Sea                  

 

O: 21JUL2021 00:42:13   9.3S  122.0E ML=4.2  EMSC   SAVU SEA                     

P: 16JUL2021 135417     8.0S  121.0E 4.0-5.4 BBAAA  Flores Island area         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 20JUL2021 12:15:33   0.8S   81.0W ML=4.2  EMSC   OFF COAST OF ECUADOR          

O: 20JUL2021 13:26:25   0.9S   80.9W ML=4.0  EMSC   NEAR COAST OF ECUADOR        

P: 14JUL2021 135416     1.0S   81.0W 4.0-5.5 CAAAA  Ecuador                    

 

O: 21JUL2021 03:28:59   9.8N   81.1W ML=3.9  EMSC   PANAMA                       

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 ACAAA  Costa Rica                 

 

O: 20JUL2021 23:57:14   9.8N   84.1W mb=3.9  EMSC   COSTA RICA                   

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 ACBAA  Costa Rica                 

 

O: 20JUL2021 21:17:45  14.6N   93.3W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 20JUL2021 16:39:35  14.6N   93.4W ML=4.1  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 20JUL2021 135437    15.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 20JUL2021 15:42:34  15.6S   72.2W mb=4.1  EMSC   SOUTHERN PERU                

P: 18JUL2021 135610    16.0S   73.0W 4.0-5.4 AAAAA  So. Peru/Bolivia           

 

O: 20JUL2021 18:30:58  15.9N   94.8W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 20JUL2021 135437    15.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 20JUL2021 22:35:21  16.8N   95.2W ML=4.2  EMSC   OAXACA, MEXICO

O: 21JUL2021 03:07:00  15.9N   96.3W ML=4.0  EMSC   OAXACA, MEXICO               

P: 18JUL2021 135453    15.0N   98.0W 3.5-5.8 BABAA  Oaxaca, Mexico             

 

O: 20JUL2021 21:35:43  18.0N   67.1W Md=3.0  EMSC   PUERTO RICO                  

P: 20JUL2021 135461    20.0N   67.0W 3.0-4.9 ABAAA  Bahamas/No. Caribbean      

 

O: 21JUL2021 05:05:22  18.7N  102.8W ML=4.1  EMSC   MICHOACAN, MEXICO             

P: 20JUL2021 135447    18.0N  102.0W 3.5-5.5 AAAAA  Michoacan, Mexico          

 

O: 21JUL2021 06:19:38  19.2N   66.5W Md=3.5  EMSC   PUERTO RICO REGION           

P: 21JUL2021 135461    20.0N   66.0W 3.0-5.0 AAAAA  Bahamas/No. Caribbean       

 

O: 20JUL2021 22:15:35  19.6N  103.7W ML=4.0  EMSC   JALISCO, MEXICO              

P: 20JUL2021 135447    18.0N  102.0W 3.5-5.5 ABBAA  Michoacan, Mexico          

 

O: 21JUL2021 02:02:39  20.9S   69.9W mb=4.2  EMSC   TARAPACA, CHILE              

P: 21JUL2021 135628    20.0S   70.0W 4.0-5.5 AAAAA  So. Peru/Bolivia           

 

NEIC reported this earthquake of M 4.2 in Northern Chile was felt with intensity II-III in the area(s) of Northern Chile at Iquique, Tarapaca.

 

O: 20JUL2021 12:41:59  28.0N  112.3W ML=3.5  EMSC   GULF OF CALIFORNIA           

P: 15JUL2021 135465    28.0N  112.0W 3.5-5.2 BAAAA  Gulf of California         

 

 

AFRICA AND EUROPE

 

O: 20JUL2021 17:44:15  35.1N   25.2E ML=4.2  EMSC   CRETE, GREECE                

P: 18JUL2021 135490    34.0N   24.0E 3.0-4.9 ABAAA  Crete                      

 

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

 

SOUTHWEST PACIFIC

 

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

 

OCEAN RIDGES

 

O: 21JUL2021 02:19:04  35.4S   15.8W mb=5.0  EMSC   TRISTAN DA CUNHA REGION      

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 20JUL2021 14:41:22  32.9S  178.9W mb=4.7  EMSC   SOUTH OF KERMADEC ISLANDS    

O: 20JUL2021 08:00:34  34.5S  179.7E ML=4.5  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 16JUL2021 135636    33.0S  178.0E 4.0-5.6 BABAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 20JUL2021 13:33:56  25.8N  128.3E mb=4.4  EMSC   RYUKYU ISLANDS, JAPAN        

P: 16JUL2021 135472    26.0N  129.0E 4.0-5.6 BAAAA  Ryukyu Islands             

 

O: 20JUL2021 15:55:29  46.8N  153.1E mb=4.4  EMSC   KURIL ISLANDS                

P: 17JUL2021 135546    46.0N  155.0E 3.5-5.5 BABAA  NE Pacific                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 20JUL2021 23:12:22  38.5N  119.5W Md=2.0  EMSC   CENTRAL CALIFORNIA

O: 21JUL2021 03:50:11  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 21JUL2021 04:21:09  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 20JUL2021 07:55:57  38.6N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 20JUL2021 17:27:35  38.6N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 20JUL2021 21:35:36  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA           

P: 21JUL2021 135480    38.3N  119.3W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 20JUL2021 09:16:37  31.4N  115.8W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

P: 16JUL2021 135509    31.9N  115.3W 2.5-4.4 BAAAA  So. California             

 

O: 20JUL2021 08:55:43  35.7N  117.5W Ml=2.3  EMSC   SOUTHERN CALIFORNIA          

P: 18JUL2021 135519    35.9N  117.7W 2.5-4.8 AAAAA  So. California             

 

O: 20JUL2021 19:16:56  33.1N  115.6W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 21JUL2021 135511    32.6N  116.1W 2.5-4.6 AAAAA  So. California              

 

O: 20JUL2021 17:01:23  36.2N  117.9W Ml=2.7  EMSC   CENTRAL CALIFORNIA           

P: 18JUL2021 135519    35.9N  117.7W 2.5-4.8 AAAAA  So. California             

 

O: 21JUL2021 03:40:24  36.6N  120.4W Md=2.4  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135484    36.6N  120.7W 2.5-4.6 BAAAA  Central California         

 

O: 21JUL2021 01:29:15  36.8N  121.5W ML=2.5  EMSC   CENTRAL CALIFORNIA           

P: 21JUL2021 135485    36.8N  121.3W 2.5-4.6 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.9 in Central California was felt with intensity II-III in the area(s) of Central California at San Juan Bautista, Salinas, Aromas, Castroville, Marina and Gilroy.

 

O: 20JUL2021 23:50:02  38.1N  118.0W ml=2.2  EMSC   NEVADA                        

O: 21JUL2021 01:48:44  38.1N  118.8W Md=2.2  EMSC   CENTRAL CALIFORNIA           

O: 20JUL2021 07:28:41  38.2N  117.8W ml=2.1  EMSC   NEVADA                       

P: 21JUL2021 135481    38.4N  118.7W 2.5-4.9 AAAAA  California/Nevada area     

 

O: 20JUL2021 12:54:19  38.8N  122.8W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 19JUL2021 135486    38.7N  122.7W 2.5-4.4 AAAAA  Central California         

 

O: 20JUL2021 13:19:59  39.0N  119.1W ml=2.1  EMSC   NEVADA                       

P: 21JUL2021 135480    38.3N  119.3W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 21JUL2021 01:57:28  40.7N  123.9W Md=2.7  EMSC   NORTHERN CALIFORNIA          

P: 19JUL2021 135551    40.0N  123.0W 2.5-4.6 AAAAA  Northern California        

 

 

ALASKA

 

O: 20JUL2021 13:21:40  51.1N  176.3W mb=3.6  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 16JUL2021 135572    51.3N  176.8W 3.5-5.0 BAAAA  Andreanoff Isls, Aleutians 

 

O: 20JUL2021 16:25:56  61.5N  146.5W ML=3.0  EMSC   SOUTHERN ALASKA              

P: 17JUL2021 135591    61.2N  147.4W 3.2-5.1 BAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 20JUL2021 10:49:38  48.9N  122.5W Ml=2.6  EMSC   WASHINGTON                   

P: 21JUL2021 135566    48.0N  123.0W 2.0-4.1 AAAAA  Washington state, U.S.     

 

NEIC reported this earthquake of M 2.6 in Washington State was felt with intensity II-III in the area(s) of Washington State at Bellingham, Ferndale, Lynden, Abbotsford and Victoria, British Columbia, Canada.

 

ROCKY MOUNTAINS REGION

 

O: 20JUL2021 11:19:58  44.3N  115.2W Ml=2.9  EMSC   SOUTHERN IDAHO               

P: 17JUL2021 135542    44.4N  115.1W 2.0-4.1 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 20JUL2021 00:26:35  47.6N   66.2W MB=1.7  ECAN Petit Rocher, NB               

P: 18JUL2021 135534    49.0N   66.0W 2.0-4.0 ABAAA  E. of Maine                

 

O: 20JUL2021 00:16:07  44.9N   79.1W MB=1.5  ECAN Gravenhurst, ON                

P: 21JUL2021 135556    46.0N   81.0W 2.0-4.4 ABBAA  Ohio/Lake Erie              

 

O: 19JUL2021 19:56:41  48.9N   68.2W MB=1.9  ECAN Chute-aux-Outardes, QC         

P: 18JUL2021 135534    49.0N   66.0W 2.0-4.0 AABAA  E. of Maine                

 

O: 20JUL2021 18:17:16  35.4N   97.9W ML=2.1  EMSC   OKLAHOMA                     

P: 18JUL2021 135524    37.0N   98.0W 2.0-3.9 ABAAA  Southern Plains            

 

HAWAII

 

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

 

MODERATE QUAKES SHAKE SOUTHWEST PACIFIC

 

EARTHQUAKE SUMMARY FOR JULY 19, 2021

 

The largest earthquakes in the world today were an M 5.7 and  M 5.8 in the Bismarck Sea. It was preceded by an M 5.0 foreshock. NEIC reported these events were strongly felt with intensity up to VIII in Lorengau Manus, Papua New Guinea. An M 5.7 also shook the region of New Britain today.  The M 5.8 in the Bismarck Sea occurred near local solar midnight and may have been promoted by high tidal stresses which maximize near this hour and by geomagnetic effects from the moderate geomagnetic storm of two days ago. The last earthquake of equal or  greater magnitude in the Bismarck Sea occurred as an M 6.1 on April 27, 2021 about 150 km to the west of today's epicenter. An M 6.3 also occurred in this area on February 7, 2021. Forecast 135420 had expected today's activity in the Bismarck Sea within about 50 km of these epicenter was likely around July 19.

 

O: 19JUL2021 19:42:33   3.3S  146.7E mb=5.0  EMSC   BISMARCK SEA

O: 19JUL2021 20:30:41   3.3S  146.5E Mw=5.7  EMSC   BISMARCK SEA

O: 19JUL2021 20:24:39   3.5S  146.4E ML=4.6  EMSC   BISMARCK SEA

O: 19JUL2021 20:57:06   3.6S  147.0E ML=4.7  EMSC   BISMARCK SEA

O: 19JUL2021 15:22:32   3.3S  146.9E Mw=5.8  EMSC   BISMARCK SEA                  

O: 19JUL2021 20:00:55   3.9S  146.3E ML=4.7  EMSC   BISMARCK SEA                 

P: 19JUL2021 135420     3.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

The M 5.7 in the New Britain area had been expected within about 50 km

in forecast 135419 to occur in mid-July.

 

O: 20JUL2021 04:22:47   5.5S  153.9E mb=4.8  EMSC   NEW IRELAND REGION, P.N.G.

O: 19JUL2021 23:02:08   5.0S  152.2E Mw=5.7  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 15JUL2021 135419     5.0S  153.0E 4.0-5.5 BAAAA  New Britain                 

 

The strongest earthquake in the U.S. outside Alaska today was an M 4.0 in New Mexico near the Texas border. NEIC reported it was felt with intensity III in New Mexico at Carlsbad and Jai and in Mentone, Texas. This area has seen an upsurge in seismicity in recent months, possibly related to oil and gas extraction in the region. The last earthquake of M>=4 in the area was an M 4.4 on June 25, 2021 but four other such events have occurred in the region in the past five months. The activity began with an M 5.0 on March 26, 2020. There were no earthquakes of M>=4 in the area from 2010 to 2020.

Forecast 135508 had expected today's activity within about 100 km was likely

around July 18.

 

O: 20JUL2021 02:11:06  31.6N  104.6W ML=2.8  EMSC   WESTERN TEXAS                

O: 19JUL2021 11:23:25  32.1N  103.7W ML=3.9  EMSC   NEW MEXICO                   

O: 19JUL2021 11:23:25  32.1N  103.7W ML=4.0  ANSS   NEW MEXICO                   

P: 18JUL2021 135508    32.5N  104.6W 2.0-4.0 AAAAA  SW U.S.A                    

 

The strongest earthquake in Alaska today was an M 4.3 in the Kenai Peninsula. NEIC reported it was felt with intensity II-III in Alaska at Clam Gulch, Ninilchik, Kasilof, Anchor Point, Soldotna, Sterling, Homer, Kenai, Copper Landing and Moose Pass. The last earthquake in the Kenai Peninsula, Alaska region with larger magnitude was an M 4.7 on July 1, 2021. The only other such event in this region in the past year was an M 4.4 on January 26, 2021. Forecast 135590 had expected today's activity was likely within about 50 km around July 20.

 

O: 19JUL2021 10:52:19  60.2N  151.8W Mw=4.3  EMSC   KENAI PENINSULA, ALASKA      

P: 20JUL2021 135590    60.8N  151.7W 3.2-5.3 AAAAA  Central Alaska             

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O: 20JUL2021 00:15:16  39.7N   73.6E mb=4.3  EMSC   KYRGYZSTAN                   

P: 16JUL2021 135491    39.0N   71.0E 3.8-5.5 BABAA  Hindu Kush/Pakistan        

 

O: 20JUL2021 01:27:00  41.6N   81.0E mb=4.5  EMSC   SOUTHERN XINJIANG, CHINA     

P: 15JUL2021 135539    41.0N   83.0E 4.0-5.4 BABAA  Kirgizstan/Xinjiang        

 

O: 19JUL2021 22:06:46  56.0N  113.5E mb=4.6  EMSC   BURYATIYA, RUSSIA            

P: 19JUL2021 135584    56.0N  110.0E 3.0-4.5 AABAA  So. Siberia                

 

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

 

INDONESIA AND PHILIPPINES

 

O: 20JUL2021 03:34:27   1.3N   97.0E ML=4.0  EMSC   NIAS REGION, INDONESIA       

P: 17JUL2021 135410     2.0N   96.0E 4.0-5.6 BAAAA  Nicobar Islands            

 

O: 19JUL2021 18:39:37   3.8N  126.9E ML=4.5  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 21JUL2021 135408     3.0N  128.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 19JUL2021 22:19:16   5.6N  126.6E ML=4.7  EMSC   MINDANAO, PHILIPPINES        

P: 14JUL2021 135408     6.0N  127.0E 4.0-5.4 BAAAA  Halmahera                  

 

O: 19JUL2021 07:27:53   8.9N  126.8E mb=4.5  EMSC   MINDANAO, PHILIPPINES        

P: 17JUL2021 135404     8.0N  125.0E 4.0-5.5 AABAA  Central Philippines        

 

O: 19JUL2021 17:53:18  10.5N  125.1E ML=4.4  EMSC   LEYTE, PHILIPPINES           

P: 15JUL2021 135444    10.0N  127.0E 3.5-4.9 AABAA  Luzon, Philippines         

 

O: 19JUL2021 19:42:33   3.3S  146.7E mb=5.0  EMSC   BISMARCK SEA

O: 19JUL2021 20:30:41   3.3S  146.5E Mw=5.7  EMSC   BISMARCK SEA

O: 19JUL2021 20:24:39   3.5S  146.4E ML=4.6  EMSC   BISMARCK SEA

O: 19JUL2021 20:57:06   3.6S  147.0E ML=4.7  EMSC   BISMARCK SEA

O: 19JUL2021 15:22:32   3.3S  146.9E Mw=5.8  EMSC   BISMARCK SEA                 

O: 19JUL2021 20:00:55   3.9S  146.3E ML=4.7  EMSC   BISMARCK SEA                 

P: 19JUL2021 135420     3.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

 

O: 20JUL2021 04:22:47   5.5S  153.9E mb=4.8  EMSC   NEW IRELAND REGION, P.N.G.

O: 19JUL2021 23:02:08   5.0S  152.2E Mw=5.7  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 15JUL2021 135419     5.0S  153.0E 4.0-5.5 BAAAA  New Britain                

 

CENTRAL AND SOUTH AMERICA

 

O: 19JUL2021 15:29:59   6.9N   73.0W mb=4.3  EMSC   NORTHERN COLOMBIA            

P: 21JUL2021 135405     7.0N   73.0W 4.0-5.4 AAAAA  Colombia                   

 

O: 19JUL2021 17:08:49   7.1N   82.7W mb=4.7  EMSC   SOUTH OF PANAMA              

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 AAAAA  Costa Rica                 

 

NEIC reported this earthquake of M 4.7 in Panama was felt with intensity II-III in the area(s) of Panama at Boquete and Rio e Jesus.

 

O: 19JUL2021 18:08:13  11.5S   77.8W ML=4.0  EMSC   NEAR COAST OF CENTRAL PERU   

P: 16JUL2021 135605    13.0S   77.0W 4.0-5.8 BBAAA  Central Peru               

 

O: 19JUL2021 09:50:03  13.5N   91.2W mb=4.1  EMSC   OFFSHORE GUATEMALA            

P: 21JUL2021 135440    14.0N   92.0W 3.5-5.3 AAAAA  Guatemala                  

 

O: 19JUL2021 20:56:23  15.4N   96.3W ML=4.4  EMSC   OFFSHORE OAXACA, MEXICO      

O: 20JUL2021 06:03:11  16.4N   98.3W ML=4.0  EMSC   OAXACA, MEXICO               

P: 18JUL2021 135453    15.0N   98.0W 3.5-5.8 ABAAA  Oaxaca, Mexico             

 

O: 20JUL2021 02:50:13  17.4N   97.4W ML=4.4  EMSC   OAXACA, MEXICO

O: 19JUL2021 18:12:21  16.9N   95.1W ML=4.4  EMSC   OAXACA, MEXICO               

P: 17JUL2021 135437    17.0N   95.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 19JUL2021 09:17:22  17.4N  101.3W ML=4.4  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 15JUL2021 135447    18.0N  101.0W 3.5-5.6 BAAAA  Michoacan, Mexico          

P: 20JUL2021 135447    18.0N  102.0W 3.5-5.5 AAAAA  Michoacan, Mexico          

 

O: 19JUL2021 15:33:38  19.3N   74.6W ML=3.6  EMSC   CUBA REGION                  

P: 18JUL2021 135462    20.0N   71.0W 3.0-4.7 AACAA  Bahamas/No. Caribbean      

 

O: 19JUL2021 09:44:49  23.3S   64.6W ML=4.2  EMSC   SALTA, ARGENTINA             

P: 20JUL2021 135618    24.0S   66.0W 4.0-5.8 AAAAA  Argentina                  

 

O: 20JUL2021 03:05:26  35.4S   71.4W mb=4.3  EMSC   MAULE, CHILE                 

O: 20JUL2021 03:05     35.3S   71.4W mb=4.2  GUC    O'Higgins at Lolol, Paredones,

P: 15JUL2021 135632    35.0S   71.0W 4.0-5.5 BAAAA  Central Chile              

 

 

NEIC reported this earthquake of M 4.3 in Maule, Chile was felt with intensity II-III in the area(s) of Maule, Chile at Talca.

GUC reported this earthquake was felt with intensity   III in  O'Higgins at Lolol, Paredones, Pumanque; Maule at Curico, Linares, San Clemente, Talca and Villa Alegre, Chile.

 

AFRICA AND EUROPE

 

O: 19JUL2021 19:21:30  36.8N    5.5E mb=4.3  EMSC   NORTHERN ALGERIA              

 

O: 19JUL2021 13:13:04  37.8N   28.0E ML=3.9  EMSC   WESTERN TURKEY               

P: 14JUL2021 135525    37.0N   29.0E 3.5-5.4 BAAAA  Turkey                     

 

O: 20JUL2021 05:05:26  38.3N   23.3E mb=4.3  EMSC   GREECE                       

P: 15JUL2021 135498    39.0N   22.0E 3.0-4.6 BAAAA  No. Greece                 

 

NEIC reported this earthquake of M 4.2 in Greece was felt with intensity II-III in the area(s) of Greece at Tragana.

 

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

 

SOUTHWEST PACIFIC

 

O: 20JUL2021 03:08:11  12.3S  167.1E mb=4.4  EMSC   SANTA CRUZ ISLANDS           

P: 14JUL2021 135616    16.0S  168.0E 4.0-5.5 CCAAA  Vanuatu Islands            

 

O: 19JUL2021 18:04:54  24.6S  179.9E mb=4.4  EMSC   SOUTH OF FIJI ISLANDS        

P: 20JUL2021 135629    24.0S  179.0E 4.0-5.6 AAAAA  Tonga/Fiji                 

 

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: 19JUL2021 08:12:48  31.0S  117.3E ML=3.5  EMSC   WESTERN AUSTRALIA            

P: 10JUL2021 135380    30.0S  118.0E 2.0-3.4 CAAAA  Central Australia          

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O: 19JUL2021 23:03:37  26.6N  129.9E Mw=5.1  EMSC   RYUKYU ISLANDS, JAPAN        

P: 18JUL2021 135467    27.0N  130.0E 4.0-5.4 AAAAA  Kyushu Japan               

 

NEIC reported this earthquake of M 5.1 in the Ryukyu Islands, Japan was felt with intensity II-III in the area(s) of the Ryukyu Islands, Japan in Okinawa at Chatan.

 

O: 20JUL2021 04:58:30  28.2N  129.5E ML=4.2  EMSC   RYUKYU ISLANDS, JAPAN        

P: 18JUL2021 135467    27.0N  130.0E 4.0-5.4 ABAAA  Kyushu Japan               

 

O: 19JUL2021 16:00:14  27.3N  140.4E mb=4.2  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 19JUL2021 135463    28.0N  140.0E 4.0-5.4 AAAAA  Bonin Islands              

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 19JUL2021 21:30:43  30.7N  114.5W ML=3.5  EMSC   GULF OF CALIFORNIA           

P: 16JUL2021 135465    30.0N  114.0W 3.5-5.2 BAAAA  Gulf of California          

 

O: 19JUL2021 09:57:40  31.5N  115.6W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

P: 16JUL2021 135509    31.9N  115.3W 2.5-4.4 BAAAA  So. California             

 

O: 20JUL2021 00:28:31  33.0N  115.6W Ml=2.2  EMSC   SOUTHERN CALIFORNIA           

P: 21JUL2021 135511    32.6N  116.1W 2.5-4.6 AAAAA  So. California             

 

O: 19JUL2021 13:10:38  39.2N  117.4W ml=2.2  EMSC   NEVADA                       

P: 14JUL2021 135483    39.9N  118.4W 2.5-4.5 BAAAA  California/Nevada area     

 

O: 20JUL2021 04:30:32  40.8N  119.4W ml=2.9  EMSC   NEVADA                       

P: 21JUL2021 135531    40.2N  119.6W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 20JUL2021 03:54:16  36.0N  117.3W Ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 13:29:26  35.7N  117.6W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 18JUL2021 135519    35.9N  117.7W 2.5-4.8 AAAAA  So. California             

 

O: 19JUL2021 23:04:16  38.2N  117.7W ml=2.1  EMSC   NEVADA

O: 19JUL2021 19:27:20  38.2N  118.0W ml=2.3  EMSC   NEVADA                        

P: 21JUL2021 135481    38.4N  118.7W 2.5-4.9 AAAAA  California/Nevada area     

 

O: 19JUL2021 10:26:44  38.5N  119.5W ml=2.6  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 19:58:10  38.5N  119.5W Ml=3.0  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 15:30:04  38.6N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 08:33:00  38.5N  119.6W Md=2.2  EMSC   NORTHERN CALIFORNIA          

P: 21JUL2021 135480    38.3N  119.3W 2.5-4.6 AAAAA  California/Nevada area     

 

ALASKA

 

O: 19JUL2021 16:28:56  52.6N  169.4W mb=3.4  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 15JUL2021 135577    51.9N  169.2W 3.5-5.0 BAAAA  Fox Islands, Aleutians     

 

O: 19JUL2021 23:52:57  56.1N  148.4W ML=3.2  EMSC   GULF OF ALASKA               

P: 15JUL2021 135596    55.0N  149.0W 3.0-4.6 BBAAA  Gulf of  Alaska            

 

O: 20JUL2021 03:38:05  58.0N  151.9W ML=3.3  EMSC   KODIAK ISLAND REGION, ALASKA 

P: 20JUL2021 135590    60.8N  151.7W 3.2-5.3 ACAAA  Central Alaska             

 

O: 20JUL2021 06:37:28  59.9N  153.5W ml=3.1  EMSC   SOUTHERN ALASKA              

P: 18JUL2021 135590    60.3N  153.0W 3.2-5.2 AAAAA  Central Alaska             

 

O: 19JUL2021 10:52:19  60.2N  151.8W Mw=4.3  EMSC   KENAI PENINSULA, ALASKA      

P: 20JUL2021 135590    60.8N  151.7W 3.2-5.3 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 19JUL2021 10:41:02  46.9N  129.1W MB=3.1  ECAN Tofino, BC                     

P: 19JUL2021 135564    48.9N  129.3W 2.8-5.1 ABAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

O: 20JUL2021 02:11:06  31.6N  104.6W ML=2.8  EMSC   WESTERN TEXAS                

O: 19JUL2021 11:23:25  32.1N  103.7W ML=3.9  EMSC   NEW MEXICO                   

O: 19JUL2021 11:23:25  32.1N  103.7W ML=4.0  ANSS   NEW MEXICO                    

P: 18JUL2021 135508    32.5N  104.6W 2.0-4.0 AAAAA  SW U.S.A                   

 

O: 19JUL2021 17:05:19  44.5N  110.4W Ml=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 19JUL2021 135567    44.2N  110.3W 2.0-4.3 AAAAA  Yellowstone/Wyoming        

 

O: 19JUL2021 11:42:53  48.1N  116.5W Ml=2.3  EMSC   NORTHERN IDAHO               

P: 13JUL2021 135544    47.7N  117.4W 2.0-3.9 CAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 19JUL2021 19:21:16  35.4N   97.9W ML=2.3  EMSC   OKLAHOMA                      

O: 19JUL2021 13:01:52  35.5N   97.8W ML=2.2  EMSC   OKLAHOMA                     

O: 19JUL2021 08:13:22  36.5N   99.0W ML=2.0  EMSC   OKLAHOMA                     

P: 18JUL2021 135524    37.0N   98.0W 2.0-3.9 AAAAA  Southern Plains            

 

HAWAII

 

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

 

MODERATE QUAKE SHAKES SOUTHERN IRAN; UNUSUAL QUAKES IN SEVERAL AREAS

 

EARTHQUAKE SUMMARY FOR JULY 18, 2021

 

The strongest earthquake in the world today was an M 5.4 in Southern Iran.

NEIC reported this earthquake of M 5.4 in Southern Iran was felt with intensity II-III in the area(s) of Southern Iran with IV at Kazerun, Fars and Jabriya and in Berazan, Shiraz, Salmiya, el-Ahmadi and el-Wahah, Kuwait. It was followed by a series of moderate aftershocks. In the past year similar events hit the area on April 18, 20221 (M 5.8) and February 17, 2021 (M 5.4). Forecast 135473 had expected today’s event to the southeast was likely around July 17.

 

O: 18JUL2021 14:54:29  29.7N   51.1E mb=4.3  EMSC   SOUTHERN IRAN

O: 18JUL2021 15:08:42  29.7N   51.1E mb=4.4  EMSC   SOUTHERN IRAN

O: 18JUL2021 15:27:00  29.7N   51.1E ML=4.0  EMSC   SOUTHERN IRAN

O: 18JUL2021 17:32:33  29.7N   51.1E mb=4.4  EMSC   SOUTHERN IRAN

O: 18JUL2021 14:34:18  29.6N   51.2E Mw=5.4  EMSC   SOUTHERN IRAN                

P: 17JUL2021 135473    28.0N   52.0E 3.5-4.9 ABAAA  So. Iran/Persian Gulf      

 

A strong winter storm hit the area near Picton, New Zealand today. Thanks to a reader (Pam) we have good data on this storm. An earthquake of M 4.2 in the Cook Strait accompanied the storm as noted in this summary:

 

"A strong Winter Storm hit the area near Picton, New Zealand over the weekend. It was accompanied by an M 4.2 near Picton which was probably triggered by stresses from this storm." (July 18-19, 2021)

 

This is the strongest earthquake in the Cook Strait area since an M 4.7 on March 12, 2021 - the strongest in the area in more than a year. NEIC reported this earthquake of M 4.2 in Cook Strait, New Zealand was felt with intensity II-III in the area(s) of Cook Strait, New Zealand in New Plymouth, Taranaki, New Zealand. Forecast 135638 had expected this activity within about 50 km was likely around July 20.

 

O: 18JUL2021 18:11:53  40.7S  173.8E mb=4.2  EMSC   COOK STRAIT, NEW ZEALAND     

P: 20JUL2021 135638    40.0S  174.0E 3.0-4.5 AAAAA  North Island, N.Z.         

 

An unusual earthquake of M 4.8 was also recorded north of New Zealand an west of the Kermadec Islands. It was not reported felt in this remote area. Only one other quake of M>=4.8 has occurred within about 300 km of this epicenter in the past 30 years - an M 4.8 on December 6, 2002. Unusual earthquakes northwest of New Zealand have occasionally occurred days before strong quakes, usually along the coast of South America. But the rarity of quakes in this region does not permit any such conclusions at this time. Still, it has been nearly two months since the last major earthquake in the world and a full moon will be arriving in the next week, so global activity is likely to be enhanced in coming days.

 

 

O: 19JUL2021 00:00:23  29.6S  174.7E ML=4.8  EMSC   NORTH OF NEW ZEALAND         

P: 16JUL2021 135636    33.0S  178.0E 4.0-5.6 BCCAA  So. Kermadec Islands       

 

GEONET also reported an earthquake in Te Anau, South Island was felt with weak intensity in the area southwest of Te Anau, South Island. 140 reports of felt intensity came from the area east and north of the epicenter. More than 140 people reported feeling this earthquake with 106 reporting weak shaking and 29 light intensity; 3 with moderate intensity and none with strong, 0 with  severe and 0 with extreme shaking.

O: 18JUL2021 08:36:26  45.0S  167.5E ML=3.9  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 18JUL2021 08:36:26  45.0S  167.5E MS=4.4  GEONET Felt with weak intensity

P: 20JUL2021 135641    44.0S  168.0E 3.0-4.9 AAAAA  So. Island, N.Z.           

 

Unusual earthquakes also occurred today in the region off southern Cuba and

in the Pitcairn Island area of the South Pacific Ocean. This unusual activity further raises the specter of a major upcoming earthquake. The event in Cuba had been expected to the east in forecast 135462 around July 19.  NEIC reported this earthquake of M 4.2 in Cuba was felt with intensity II-III in the area(s) of Cuba at Guantanamo, and Santiago de Cuba.

 

O: 19JUL2021 01:33:27  19.8N   75.5W mb=4.2  EMSC   CUBA REGION                  

P: 18JUL2021 135462    20.0N   71.0W 3.0-4.7 AACAA  Bahamas/No. Caribbean      

 

An M 5.1 also occurred in the south Pacific in the Pitcairn Islands region It was not reported felt in this remote area. The only earthquake in the Pitcairn area in the past 30 years of M>=5.1 was an M 5.6 on September 23, 1995. Forecast 135624 had expected today's event within about 50 km was likely around July 14.

 

O: 18JUL2021 15:48:09  25.1S  129.6W mb=5.1  EMSC   PITCAIRN ISLANDS REGION      

P: 14JUL2021 135624    25.0S  130.0W 3.0-5.6 BAAAA  So. Pacific Ocean          

 

 

The strongest earthquake in the U.S/Canada or vicinity today was an M 4.1 in the northern Gulf of California. It was accompanied by at least nine quakes of M>=3.3. The mainshock occurred within about an hour of local solar noon and may have been enhanced by strong tidal stresses which maximize near this hour. This continues a series of events that began on July 9 and is the strongest in the current activity. This is a remote area and while some of these may have been lightly felt, this was not reported. Forecast 135465 had expected today's event within about 25 km was likely around July 18.

 

 

O: 18JUL2021 09:45:37  29.9N  114.1W ML=3.8  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 18:40:50  29.9N  113.7W ML=4.1  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 09:39:14  30.0N  114.1W ML=3.5  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 20:18:46  30.0N  114.3W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 20:50:21  30.0N  114.1W ML=3.3  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 21:02:33  30.1N  114.2W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 18:26:01  30.2N  114.3W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 18:35:08  30.2N  114.2W ML=3.5  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 21:46:18  29.8N  114.5W ML=3.7  EMSC   BAJA CALIFORNIA, MEXICO      

P: 16JUL2021 135465    30.0N  114.0W 3.5-5.2 AAAAA  Gulf of 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: 18JUL2021 14:54:29  29.7N   51.1E mb=4.3  EMSC   SOUTHERN IRAN

O: 18JUL2021 15:08:42  29.7N   51.1E mb=4.4  EMSC   SOUTHERN IRAN

O: 18JUL2021 15:27:00  29.7N   51.1E ML=4.0  EMSC   SOUTHERN IRAN

O: 18JUL2021 17:32:33  29.7N   51.1E mb=4.4  EMSC   SOUTHERN IRAN

O: 18JUL2021 14:34:18  29.6N   51.2E Mw=5.4  EMSC   SOUTHERN IRAN                

P: 17JUL2021 135473    28.0N   52.0E 3.5-4.9 ABAAA  So. Iran/Persian Gulf      

 

O: 18JUL2021 07:13:39  23.4N   70.4E ML=3.9  EMSC   GUJARAT, INDIA               

P: 17JUL2021 135470    29.0N   68.0E 3.5-4.9 ACBAA  Pakistan                   

 

O: 18JUL2021 11:25:42  24.0N  121.7E ML=4.2  EMSC   TAIWAN                        

O: 18JUL2021 11:25:42  24.0N  121.7E ML=4.2  TAI    Hualien, Taiwan              

P: 17JUL2021 135474    23.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

P: 20JUL2021 135471    25.0N  122.0E 4.0-5.5 AAAAA  Ryukyu Islands             

 

CWB reported this earthquake was felt with intensity IV in Hualien; II in Nantou and I in Yilan Counties, Taiwan.

 

O: 18JUL2021 21:31:19  27.9N   51.9E mb=4.2  EMSC   PERSIAN GULF                 

P: 17JUL2021 135473    28.0N   52.0E 3.5-4.9 AAAAA  So. Iran/Persian Gulf      

 

O: 18JUL2021 11:26:01  55.9N  113.5E mb=3.9  EMSC   BURYATIYA, RUSSIA            

P: 19JUL2021 135584    56.0N  110.0E 3.0-4.5 AABAA  So. Siberia                

 

INDONESIA AND PHILIPPINES

 

O: 19JUL2021 00:55:44   0.1N  123.2E Mw=5.2  EMSC   MINAHASA, SULAWESI, INDONESIA

O: 18JUL2021 21:54:46   0.5N  120.6E ML=4.0  EMSC   MINAHASA, SULAWESI, INDONESIA

O: 18JUL2021 10:40:01   0.0N  123.8E mb=4.9  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 16JUL2021 135409     0.0N  123.0E 4.0-5.5 AAAAA  Mindanao, Philippines      

 

O: 19JUL2021 02:38:54   0.5N  126.6E mb=4.6  EMSC   MOLUCCA SEA                  

P: 17JUL2021 135415     1.0S  127.0E 4.0-5.4 ABAAA  Ceram area                 

 

O: 19JUL2021 05:06:17   1.7N  127.1E ML=4.3  EMSC   HALMAHERA, INDONESIA         

P: 21JUL2021 135408     3.0N  128.0E 4.0-5.4 ABAAA  Halmahera                  

 

O: 18JUL2021 16:21:09   2.5N  122.1E ML=4.3  EMSC   CELEBES SEA                  

P: 16JUL2021 135409     0.0N  123.0E 4.0-5.5 ACAAA  Mindanao, Philippines      

 

O: 18JUL2021 09:35:26   3.6S  145.9E mb=4.8  EMSC   NEAR N COAST OF NEW GUINEA, PN

P: 19JUL2021 135420     3.0S  146.0E 4.0-5.4 AAAAA  New Ireland                

 

O: 18JUL2021 12:09:42   6.2N  125.8E ML=4.0  EMSC   MINDANAO, PHILIPPINES         

P: 19JUL2021 135404     7.0N  126.0E 4.0-5.4 AAAAA  Central Philippines        

 

O: 19JUL2021 04:43:00   6.3S  147.7E mb=4.6  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 16JUL2021 135420     6.0S  149.0E 4.0-5.4 BABAA  New Ireland                

 

O: 18JUL2021 17:31:11   6.8N  126.2E ML=4.4  EMSC   MINDANAO, PHILIPPINES        

P: 19JUL2021 135404     7.0N  126.0E 4.0-5.4 AAAAA  Central Philippines        

 

O: 18JUL2021 23:49:12   7.8S  107.3E ML=4.1  EMSC   JAVA, INDONESIA              

P: 20JUL2021 135426     9.0S  107.0E 4.0-5.4 AAAAA  So. of Java                

 

O: 19JUL2021 03:35:28   8.7S  119.0E ML=4.2  EMSC   SUMBAWA REGION, INDONESIA    

P: 18JUL2021 135430     9.0S  118.0E 4.0-5.5 AAAAA  Sumbawa Island area        

 

 

CENTRAL AND SOUTH AMERICA

 

O: 18JUL2021 08:18:05  15.5N   95.1W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 20JUL2021 135437    15.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 19JUL2021 06:17:50  17.1S   71.0W mb=4.7  EMSC   NEAR COAST OF SOUTHERN PERU  

P: 21JUL2021 135610    18.0S   72.0W 4.0-5.9 AAAAA  So. Peru/Bolivia           

 

O: 18JUL2021 17:47:16  17.2N  100.3W ML=4.0  EMSC   GUERRERO, MEXICO             

P: 19JUL2021 135454    17.0N  100.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

 

O: 18JUL2021 21:59:45  19.0S   66.9W mb=4.5  EMSC   ORURO, BOLIVIA               

P: 20JUL2021 135617    21.0S   67.0W 4.0-5.4 ABAAA  Argentina                  

 

O: 18JUL2021 21:32:30  19.0S   69.6W mb=4.5  EMSC   TARAPACA, CHILE              

O: 18JUL2021 21:32     19.0S   69.6W mb=4.2  GUC    Tarapaca at Camina, II in Huar

P: 21JUL2021 135628    20.0S   70.0W 4.0-5.5 BAAAA  So. Peru/Bolivia           

 

GUC reported this earthquake was felt with intensity  IV in  Tarapaca at Camina, II in Huara and Iquique and III in Arica.

NEIC reported this earthquake of M 4.5 in northern Chile was felt with intensity II-III in the area(s) of northern Chile in Tarapaca at Iquique and Arica.

 

O: 18JUL2021 21:26:10  18.0N   67.1W Md=3.1  EMSC   PUERTO RICO REGION

O: 18JUL2021 23:43:18  18.0N   67.1W Md=3.0  EMSC   PUERTO RICO

O: 18JUL2021 23:11:45  19.2N   65.0W Md=3.6  EMSC   VIRGIN ISLANDS REGION        

P: 18JUL2021 135443    19.0N   64.0W 3.0-4.9 AAAAA  Leeward Islands            

 

NEIC reported this earthquake of M 3.6 in the Virgin Islands was felt with intensity II-III in the area(s) of the Virgin Islands at Saint John.

 

O: 19JUL2021 01:33:27  19.8N   75.5W mb=4.2  EMSC   CUBA REGION                  

P: 18JUL2021 135462    20.0N   71.0W 3.0-4.7 AACAA  Bahamas/No. Caribbean      

 

O: 18JUL2021 13:46:38  20.4S   68.9W mb=4.3  EMSC   TARAPACA, CHILE              

P: 21JUL2021 135628    20.0S   70.0W 4.0-5.5 BAAAA  So. Peru/Bolivia           

 

O: 18JUL2021 08:08:56  27.9N  112.0W ML=4.1  EMSC   GULF OF CALIFORNIA            

O: 18JUL2021 09:32:23  27.9N  112.0W ML=3.6  EMSC   GULF OF CALIFORNIA

P: 15JUL2021 135465    28.0N  112.0W 3.5-5.2 BAAAA  Gulf of California         

 

 

AFRICA AND EUROPE

 

O: 18JUL2021 22:09:22  34.7N   39.8E mb=4.4  EMSC   SYRIA                         

P: 17JUL2021 135526    39.0N   41.0E 3.5-5.6 ACAAA  Turkey                     

 

O: 19JUL2021 02:33:47  34.8N   14.9W mb=4.1  EMSC   MADEIRA ISLANDS, PORTUGAL REGI

P: 10JUL2021 135234    37.0N   11.0W 3.5-5.0 CCCAA  Morocco/Spain              

 

O: 19JUL2021 01:54:57  71.2N    8.6W ML=3.3  EMSC   JAN MAYEN ISLAND REGION      

P: 16JUL2021 135602    71.0N    8.0W 3.5-5.0 BAAAA  Jan Mayen Isl. area        

 

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

 

SOUTHWEST PACIFIC

 

O: 19JUL2021 06:35:24  23.7S  179.6W mb=4.2  EMSC   SOUTH OF FIJI ISLANDS

O: 18JUL2021 23:59:17  23.6S  178.7W mb=4.6  EMSC   SOUTH OF FIJI ISLANDS        

P: 14JUL2021 135629    22.0S  180.0W 4.0-5.4 BBAAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 18JUL2021 12:05:42   2.7S  104.1W mb=4.6  EMSC   CENTRAL EAST PACIFIC RISE    

P: 11JUL2021 135152     4.0S  104.0W 4.0-5.4 CBAAA  No. East Pacific Rise      

P: 15JUL2021 135421     5.0S  105.0W 4.0-5.5 BCAAA  No. East Pacific Rise      

 

O: 18JUL2021 15:48:09  25.1S  129.6W mb=5.1  EMSC   PITCAIRN ISLANDS REGION      

P: 14JUL2021 135624    25.0S  130.0W 3.0-5.6 BAAAA  So. Pacific Ocean          

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 19JUL2021 00:00:23  29.6S  174.7E ML=4.8  EMSC   NORTH OF NEW ZEALAND         

P: 16JUL2021 135636    33.0S  178.0E 4.0-5.6 BCCAA  So. Kermadec Islands       

 

O: 18JUL2021 09:36:43  32.0S  179.5E ML=4.2  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 16JUL2021 135636    33.0S  178.0E 4.0-5.6 AAAAA  So. Kermadec Islands        

 

O: 18JUL2021 18:11:53  40.7S  173.8E mb=4.2  EMSC   COOK STRAIT, NEW ZEALAND     

P: 20JUL2021 135638    40.0S  174.0E 3.0-4.5 AAAAA  North Island, N.Z.         

 

O: 18JUL2021 08:36:26  45.0S  167.5E ML=3.9  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 18JUL2021 08:36:26  45.0S  167.5E MS=4.4  GEONET Felt with weak intensity

P: 20JUL2021 135641    44.0S  168.0E 3.0-4.9 AAAAA  So. Island, N.Z.           

 

GEONET reported this earthquake was felt with weak intensity in the area southwest of Te Anau, South Island. 140 reports of felt intensity came from the area east and north of the epicenter. More than 140 people reported feeling this earthquake with 106 reporting weak shaking and 29 light intensity; 3 with moderate intensity and none with strong, 0 with  severe and 0 with extreme shaking.

 

JAPAN AND KURIL ISLANDS

 

O: 18JUL2021 10:11:07  37.0N  139.1E mb=4.5  EMSC   EASTERN HONSHU, JAPAN        

O: 18JUL2021 09:50:08  37.0N  139.2E mb=4.6  EMSC   EASTERN HONSHU, JAPAN        

P: 16JUL2021 135499    37.0N  138.0E 3.5-5.1 AAAAA  No. Honshu, Japan          

 

O: 18JUL2021 18:29:39  44.9N  146.2E mb=4.1  EMSC   KURIL ISLANDS                

P: 20JUL2021 135536    44.0N  147.0E 3.5-5.6 AAAAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 18JUL2021 09:45:37  29.9N  114.1W ML=3.8  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 18:40:50  29.9N  113.7W ML=4.1  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 09:39:14  30.0N  114.1W ML=3.5  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 20:18:46  30.0N  114.3W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 20:50:21  30.0N  114.1W ML=3.3  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 21:02:33  30.1N  114.2W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 18:26:01  30.2N  114.3W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 18:35:08  30.2N  114.2W ML=3.5  EMSC   GULF OF CALIFORNIA

O: 18JUL2021 21:46:18  29.8N  114.5W ML=3.7  EMSC   BAJA CALIFORNIA, MEXICO      

P: 16JUL2021 135465    30.0N  114.0W 3.5-5.2 AAAAA  Gulf of California         

 

O: 18JUL2021 18:23:12  31.2N  115.4W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO      

P: 16JUL2021 135509    31.9N  115.3W 2.5-4.4 AAAAA  So. California             

 

O: 18JUL2021 19:01:35  36.3N  118.0W Ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 18JUL2021 07:27:37  36.5N  118.0W ML=2.2  EMSC   CENTRAL CALIFORNIA           

P: 18JUL2021 135518    35.7N  118.1W 2.5-4.6 AAAAA  So. California             

 

 

O: 18JUL2021 07:38:40  40.3N  124.3W Md=2.1  EMSC   NORTHERN CALIFORNIA

O: 18JUL2021 07:05:46  40.3N  124.4W Md=2.4  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 15JUL2021 135552    40.2N  124.2W 2.5-4.4 BAAAA  Off Coast of No. Calif     

 

O: 18JUL2021 13:24:10  38.4N  119.5W ML=3.6  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 02:47:18  38.4N  119.6W ml=2.0  EMSC   NORTHERN CALIFORNIA

O: 19JUL2021 04:01:48  38.4N  119.6W ml=2.4  EMSC   NORTHERN CALIFORNIA

O: 19JUL2021 06:25:05  38.4N  119.6W ml=2.0  EMSC   NORTHERN CALIFORNIA

O: 18JUL2021 11:27:34  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 03:09:17  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 06:34:16  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 06:43:33  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 19JUL2021 02:42:16  38.6N  119.5W Md=2.3  EMSC   CENTRAL CALIFORNIA

O: 18JUL2021 16:40:55  38.3N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA           

P: 21JUL2021 135480    38.3N  119.3W 2.5-4.6 BAAAA  California/Nevada area     

 

NEIC reported this earthquake of M 3.6 in Bridgeport, California was felt with intensity II-III in the area(s) of Bridgeport, California at Coleville, Long Barn, Arnld, South Lake Tahoe, Groveland, Kyburz, Glenbrook, Twain Harte, Soulsyville, Tuolumne.

 

ALASKA

 

O: 18JUL2021 20:30:13  51.8N  175.2W mb=3.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 16JUL2021 135572    51.3N  176.8W 3.5-5.0 AAAAA  Andreanoff Isls, Aleutians 

 

O: 18JUL2021 16:09:45  57.4N  154.2W ML=3.2  EMSC   KODIAK ISLAND REGION, ALASKA 

O: 18JUL2021 10:01:58  58.7N  154.4W ML=3.1  EMSC   ALASKA PENINSULA             

P: 18JUL2021 135590    60.3N  153.0W 3.2-5.2 ABAAA  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: 18JUL2021 20:40:05  31.6N  104.3W ML=2.6  EMSC   WESTERN TEXAS                

P: 18JUL2021 135508    32.5N  104.6W 2.0-4.0 AAAAA  SW U.S.A                   

 

O: 18JUL2021 07:41:55  35.4N  112.3W ML=2.9  EMSC   ARIZONA                      

P: 10JUL2021 135248    34.7N  111.0W 2.0-3.9 CBAAA  SW U.S.A                    

 

NEIC reported this earthquake of M 2.9 in Arizona was felt with intensity II-III in the area(s) of Arizona at Cottonwood, Peoria, Phoenix.

 

O: 18JUL2021 09:00:36  44.4N  110.3W Ml=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 19JUL2021 135567    44.2N  110.3W 2.0-4.3 AAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 19JUL2021 01:55:28  36.3N   97.5W ML=2.1  EMSC   OKLAHOMA

O: 18JUL2021 09:09:09  36.3N   98.1W ML=2.0  EMSC   OKLAHOMA                     

O: 18JUL2021 17:04:54  36.5N   99.0W ML=2.1  EMSC   OKLAHOMA                     

P: 18JUL2021 135524    37.0N   98.0W 2.0-3.9 AAAAA  Southern Plains            

 

O: 16JUL2021 17:57:05  61.7N   80.7W MB=3.7  ECAN Akulivik, QC                   

P: 21JUL2021 135588    60.0N   79.0W 2.5-4.6 BBAAA  Baffin/Davis Strait Canada 

 

O: 16JUL2021 15:34:49  46.1N   80.5W MB=2.3  ECAN Sturgeon Falls, ON             

P: 21JUL2021 135556    46.0N   81.0W 2.0-4.4 BAAAA  Ohio/Lake Erie             

 

O: 16JUL2021 09:34:40  74.5N   70.7W MB=2.8  ECAN Pond Inlet, NU                 

P: 21JUL2021 135601    73.3N   73.5W 2.5-3.9 BBAAA  Baffin/Davis Strait Canada 

 

HAWAII

 

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

 

MODERATE QUAKE SHAKES COAST OF NORTHERN CALIFORNIA

 

EARTHQUAKE SUMMARY FOR JULY 17, 2021

 

An earthquake of M 5.1 occurred today off the coast of northern California today. NEIC reported it was felt with maximum intensity VI in California at Carlotta; IV in Petrolia, Myers Flat, Redcrest and II-III in Ferndale, Rio Dell, Fortuna, Scotia, Loleta, and Whitethorn. This event occurred within about an hour of local solar midnight and may have been enhanced by high tidal stresses which maximize near this hour. A second factor may have been the moderate geomagnetic storm of the past two days, the strongest such storm in the past month as noted in previous issues of this summary:

 

"The geomagnetic field saw disturbed conditions today. The AP level was 10.  High latitude geomagnetic field also saw disturbed conditions with AP 15. This is the strongest disturbance in the geomagnetic field in the past month - since June 16-18, 2021 and may enhance seismicity in the region of the geomagnetic equator and at high latitudes." (July 16-17, 2021)

 

Today's event is the largest in this area off the coast of Northern California in more than a year. Similar events have last occurred in the area as an M 5.2 on March 18, 2020, an M 5.8 on March 9, 2020 and an M 4.6 on June 23, 2019 after a four year lull following an M 5.7 on September 3, 2016. Forecast 135552 had expected today's event within about 25 km was likely in mid-July.

 

O: 18JUL2021 06:46:12  40.3N  124.4W Mw=5.1  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 15JUL2021 135552    40.2N  124.2W 2.5-4.4 BAAAA  Off Coast of No. Calif     

 

As often occurs the significant earthquake off the coast of Northern California was preceded several hours earlier by a significant earthquake in the northeastern U.S. In this case an M 4.2 occurred in Lake Erie, Ohio and was lightly felt in the area. Two earthquakes of equal or larger magnitude have occurred in the Lake Erie area of Ohio in the past 30 years - an M 4.4 on January 26, 2001 and an M 4.5 on September 25, 1998. Forecast 135555 had expected today's event within about 100 km was likely around July 16. Like many recent unusual quakes in the northeastern U.S. in the past two months, this epicenter is at 103 degrees from the last major earthquake in the world - the M 7.4 of May 21, 2021 and was probably promoted by energy from that epicenter.

 

O: 17JUL2021 21:02:43  42.1N   81.4W ML=4.2  EMSC   LAKE ERIE, OHIO              

P: 16JUL2021 135555    41.0N   81.0W 2.0-4.3 ABAAA  Ohio/Lake Erie             

 

The strongest earthquake in the world today was an M 6.1 south of Panama. NEIC reported it was felt with maximum intensity IV in Panama at Cerro Sombrero; IV in San Andres and II-III in Puerto Armuelles, Guarumal, Pedregal, David, Quiterio, Tole, Petrerillos and Golfito, Panama. This is the strongest event in the area south of Panama within about 200 km since an M 6.6 on January 7, 2015. An M 6.2 also occurred about 200 km north of today's epicenter on June 26, 2019. Forecast 135406 had expected today's event within about 50 km was likely around July 19.

 

O: 18JUL2021 01:21:37   7.1N   82.7W mb=4.2  EMSC   SOUTH OF PANAMA

O: 17JUL2021 20:56:11   6.9N   82.6W Mw=6.1  EMSC   SOUTH OF PANAMA              

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 AAAAA  Costa Rica                 

 

A moderate event of M 5.5 also occurred in the northern Mid-Atlantic Ridge today. It was not reported felt in this remote area. The last earthquake within about 250 km of today's epicenter with M>=5.5 was an M 5.7 on October 18, 2007 and prior to that an M 5.5-5.6 on November 26, 2003. Forecast 135468 had expected today's event within about 100 km was likely around July 14.

 

O: 17JUL2021 21:31:21  28.5N   43.8W Mw=5.5  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 14JUL2021 135468    29.0N   43.0W 4.0-5.6 BAAAA  Mid-Atlantic Ridge         

 

The aftershock sequence in southwestern Puerto Rico showed enhancement today.

Earthquakes of M 4.4 and 4.3 occurred, the strongest aftershocks in the area since December 24, 2020 when an M 4.7 and 4.8 occurred.  NEIC reported today's earthquake of M 4.4 in southwestern Puerto Rico was felt with intensity IV in the area(s) of southwestern Puerto Rico  at Lajas, Cabo Rojo, San German, Mayaguez, Adjuntas and II-III in Ensenada, Hormigueros, Yauco, Las Marias and Anasco. Today's event of M 4.4 occurred within about 15 minutes of local solar midnight and was likely promoted by high tidal stresses which maximize near this hour. Forecast 135455 had expected this activity around July 17.

 

O: 18JUL2021 03:50:03  17.9N   67.1W ML=3.5  EMSC   PUERTO RICO REGION

O: 18JUL2021 04:42:58  17.9N   67.2W ML=3.5  EMSC   PUERTO RICO REGION

O: 18JUL2021 04:45:40  17.9N   67.1W mb=4.4  EMSC   PUERTO RICO REGION

O: 18JUL2021 03:52:22  17.8N   67.1W mb=4.3  EMSC   PUERTO RICO REGION           

P: 17JUL2021 135455    18.0N   68.0W 3.4-5.3 AAAAA  Puerto Rico                

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

 

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

 

INDONESIA AND PHILIPPINES

 

O: 17JUL2021 12:58:40   1.7N  127.3E mb=4.6  EMSC   HALMAHERA, INDONESIA         

O: 17JUL2021 12:24:02   2.1N  125.6E ML=4.0  EMSC   KEPULAUAN SANGIHE, INDONESIA 

P: 21JUL2021 135408     3.0N  128.0E 4.0-5.4 BABAA  Halmahera                  

 

O: 17JUL2021 11:30:52   2.3S  120.9E ML=4.4  EMSC   SULAWESI, INDONESIA

O: 17JUL2021 10:53:59   2.2S  120.9E mb=4.4  EMSC   SULAWESI, INDONESIA           

P: 15JUL2021 135429     2.0S  123.0E 4.0-5.4 AABAA  Sulawesi area              

 

NEIC reported this earthquake of M 4.4 in Sulawesi, Indonesia was felt with intensity II-III in the area(s) of Sulawesi, Indonesia at Poso.

 

O: 17JUL2021 12:50:09   4.5S  138.1E ML=4.5  EMSC   PAPUA, INDONESIA             

P: 11JUL2021 135163     3.0S  138.0E 4.0-5.4 CBAAA  West Irian, PNG            

P: 14JUL2021 135424     4.0S  140.0E 4.0-5.6 BABAA  Papua New Guinea           

 

O: 18JUL2021 03:08:33   6.3N  124.6E mb=4.5  EMSC   MINDANAO, PHILIPPINES        

P: 18JUL2021 135409     6.0N  124.0E 4.0-5.4 AAAAA  Mindanao, Philippines      

 

NEIC reported this earthquake of M 5.1 in Mindanao, Philippines was felt with intensity II-III in the area(s) of Mindanao, Philippines at Digos, Lasang and Buayan.

 

O: 18JUL2021 02:32:31   6.4N  126.3E ML=4.1  EMSC   MINDANAO, PHILIPPINES        

P: 19JUL2021 135404     7.0N  126.0E 4.0-5.4 AAAAA  Central Philippines        

 

O: 18JUL2021 02:25:34   6.4S  103.9E mb=4.9  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P: 21JUL2021 135427     6.0S  103.0E 4.0-5.4 BAAAA  So. of Sumatera            

 

O: 18JUL2021 00:09:36   6.5N  126.2E Mw=5.1  EMSC   MINDANAO, PHILIPPINES        

P: 19JUL2021 135404     7.0N  126.0E 4.0-5.4 AAAAA  Central Philippines        

 

O: 17JUL2021 11:20:43   6.5S  154.2E mb=4.8  EMSC   BOUGAINVILLE REGION, P.N.G.  

P: 15JUL2021 135419     5.0S  153.0E 4.0-5.5 ABAAA  New Britain                

 

O: 18JUL2021 00:28:59   7.2S  149.5E mb=4.9  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 16JUL2021 135420     6.0S  149.0E 4.0-5.4 ABAAA  New Ireland                

 

O: 18JUL2021 04:16:34   7.7N  124.8E ML=4.0  EMSC   MINDANAO, PHILIPPINES        

P: 17JUL2021 135404     8.0N  125.0E 4.0-5.5 AAAAA  Central Philippines         

 

 

CENTRAL AND SOUTH AMERICA

 

 

O: 17JUL2021 23:51:23   6.8N   77.6W mb=4.4  EMSC   NEAR WEST COAST OF COLOMBIA  

P: 14JUL2021 135405     7.0N   78.0W 4.0-5.5 AAAAA  Colombia                   

 

O: 18JUL2021 01:21:37   7.1N   82.7W mb=4.2  EMSC   SOUTH OF PANAMA

O: 17JUL2021 20:56:11   6.9N   82.6W Mw=6.1  EMSC   SOUTH OF PANAMA              

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 AAAAA  Costa Rica                 

 

O: 17JUL2021 20:57:30  11.7N   85.6W ML=4.2  EMSC   NICARAGUA                     

P:  8JUL2021 135184    12.0N   86.0W 3.5-5.3 CAAAA  Nicaragua                  

P: 19JUL2021 135450    12.0N   88.0W 3.5-5.2 AABAA  Nicaragua                  

 

O: 17JUL2021 16:21:00  12.7S   76.8W ML=4.0  EMSC   NEAR COAST OF CENTRAL PERU   

P: 16JUL2021 135605    13.0S   77.0W 4.0-5.8 AAAAA  Central Peru               

 

O: 18JUL2021 03:33:42  14.9S   71.5W Mw=4.9  EMSC   CENTRAL PERU                 

P: 13JUL2021 135605    15.0S   71.0W 4.0-5.4 BAAAA  Central Peru               

 

O: 18JUL2021 04:33:05  15.8N   91.3W mb=4.6  EMSC   GUATEMALA                    

P: 15JUL2021 135440    15.0N   91.0W 3.5-5.5 BAAAA  Guatemala                  

 

NEIC reported this earthquake of M 4.6 in Guatemala was felt with intensity IV in Santa Catarina, Pinula, Guatemala and II-III in the area(s) of  Guatemala in Huehuetenango, San Cristobal, Verapaz, Panajachel and Guatemala City.

 

O: 18JUL2021 03:50:03  17.9N   67.1W ML=3.5  EMSC   PUERTO RICO REGION

O: 18JUL2021 04:42:58  17.9N   67.2W ML=3.5  EMSC   PUERTO RICO REGION

O: 18JUL2021 04:45:40  17.9N   67.1W mb=4.4  EMSC   PUERTO RICO REGION

O: 18JUL2021 03:52:22  17.8N   67.1W mb=4.3  EMSC   PUERTO RICO REGION           

P: 17JUL2021 135455    18.0N   68.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 17JUL2021 16:03:24  19.5N   96.0W ML=4.0  EMSC   OFFSHORE VERACRUZ, MEXICO    

P: 13JUL2021 135454    19.0N   99.0W 3.5-5.5 BACAA  Oaxaca, Mexico             

 

 

AFRICA AND EUROPE

 

O: 18JUL2021 04:56:53  35.1N   25.2E mb=4.4  EMSC   CRETE, GREECE                 

P: 18JUL2021 135490    34.0N   24.0E 3.0-4.9 ABAAA  Crete                      

 

NEIC reported this earthquake of M 4.4 in Crete, Greece was felt with intensity II-III in the area(s) of Crete, Greece at Nea Alikamassos, Iraklion.

 

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

 

SOUTHWEST PACIFIC

 

O: 17JUL2021 14:01:48  16.2S  179.0E mb=4.8  EMSC   FIJI                         

P: 20JUL2021 135629    24.0S  179.0E 4.0-5.6 BDAAA  Tonga/Fiji                 

 

O: 18JUL2021 00:36:32  19.3S  175.4W Mw=5.6  EMSC   TONGA                        

P: 14JUL2021 135613    19.0S  175.0W 4.0-5.9 BAAAA  Tonga Islands              

 

O: 17JUL2021 11:39:03  22.1S  169.9E mb=4.6  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 14JUL2021 135621    22.0S  169.0E 4.0-5.4 BAAAA  Loyalty Islands            

 

O: 18JUL2021 01:04:52  23.1S  172.4E Mw=5.2  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 16JUL2021 135621    23.0S  172.0E 4.0-5.4 AAAAA  Loyalty Islands            

 

OCEAN RIDGES

 

O: 17JUL2021 21:31:21  28.5N   43.8W Mw=5.5  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 14JUL2021 135468    29.0N   43.0W 4.0-5.6 BAAAA  Mid-Atlantic Ridge         

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O: 17JUL2021 11:50:00  33.6N  131.7E Mw=5.2  EMSC   KYUSHU, JAPAN                

P: 15JUL2021 135493    31.0N  132.0E 3.5-5.0 ACAAA  Kyushu, Japan area         

 

NEIC reported this earthquake of M 5.2 in Kyushu, Japan was felt with intensity II-III in the area(s) of Kyushu, Japan in Yamaguchi, Oita, Hiroshima, Fukuoka.

 

O: 18JUL2021 05:35:51  34.0N  133.9E mb=4.7  EMSC   SHIKOKU, JAPAN               

P: 17JUL2021 135488    34.0N  136.0E 3.5-4.9 AABAA  Central/So. Honshu Japan   

 

O: 17JUL2021 09:07:30  36.3N  137.6E ML=4.2  EMSC   EASTERN HONSHU, JAPAN        

P: 16JUL2021 135499    37.0N  138.0E 3.5-5.1 AAAAA  No. Honshu, Japan          

 

O: 17JUL2021 16:21:38  37.6N  141.7E mb=4.4  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 17JUL2021 135505    37.0N  142.0E 4.0-5.4 AAAAA  Off East Coast Honshu      

 

NEIC reported this earthquake of M 4.4 in Honshu Japan was felt with intensity II-III in the area(s) of Honshu Japan in Tokyo and Sendai, Miyagi.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 17JUL2021 09:18:45  31.7N  116.2W ML=3.6  EMSC   BAJA CALIFORNIA, MEXICO      

O: 17JUL2021 18:37:28  31.8N  116.6W ML=3.4  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P: 15JUL2021 135509    31.9N  116.3W 2.5-4.4 AAAAA  So. California             

 

O: 17JUL2021 18:07:53  32.4N  118.7W ML=2.7  EMSC   OFF COAST OF CALIFORNIA      

P: 19JUL2021 135510    32.5N  118.2W 2.5-4.8 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.7 in Southern California was felt with intensity II-III in the area(s) of Southern California in Solana Beach and Newport Beach.

 

O: 18JUL2021 00:08:28  36.6N  121.3W Md=2.6  EMSC   CENTRAL CALIFORNIA           

P: 21JUL2021 135485    36.8N  121.3W 2.5-4.6 BAAAA  Central California         

 

NEIC reported this earthquake of M 2.6 in Central California was felt with intensity II-III in the area(s) of Central California at Los Banos and Mariana.

 

O: 17JUL2021 20:59:32  37.1N  117.5W ml=2.8  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135478    36.2N  117.9W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 17JUL2021 11:22:20  38.8N  122.8W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 19JUL2021 135486    38.7N  122.7W 2.5-4.4 AAAAA  Central California         

 

O: 17JUL2021 19:29:47  39.4N  118.3W ml=2.7  EMSC   NEVADA                       

P: 14JUL2021 135483    39.9N  118.4W 2.5-4.5 BAAAA  California/Nevada area     

 

O: 18JUL2021 03:34:24  39.4N  123.3W Md=2.3  EMSC   NORTHERN CALIFORNIA          

P: 17JUL2021 135487    39.2N  123.1W 2.5-4.4 AAAAA  Central California         

 

O: 18JUL2021 06:46:12  40.3N  124.4W Mw=5.1  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 15JUL2021 135552    40.2N  124.2W 2.5-4.4 BAAAA  Off Coast of No. Calif     

 

O: 17JUL2021 07:15:22  40.4N  122.1W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 16JUL2021 135551    40.7N  122.3W 2.5-4.6 AAAAA  Northern California        

 

O: 17JUL2021 10:08:36  38.5N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 18:13:45  38.5N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 19:40:22  38.5N  119.6W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 22:22:27  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 18JUL2021 02:17:23  38.5N  119.4W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 18JUL2021 04:22:48  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 18JUL2021 05:24:11  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 09:49:10  38.6N  119.5W ML=3.6  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 13:16:18  38.6N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 17:10:57  38.6N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 17:12:54  38.6N  119.5W MD=2.6  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 08:18:35  38.5N  119.4W ml=2.1  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135480    38.8N  119.6W 2.5-4.4 AAAAA  California/Nevada area     

 

ALASKA

 

O: 17JUL2021 07:23:47  56.3N  148.6W ML=3.1  EMSC   GULF OF ALASKA               

P: 15JUL2021 135596    55.0N  149.0W 3.0-4.6 ABAAA  Gulf of  Alaska            

 

O: 17JUL2021 21:28:59  61.5N  146.5W ML=3.1  EMSC   SOUTHERN ALASKA              

P: 17JUL2021 135591    61.2N  147.4W 3.2-5.1 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 17JUL2021 16:43:10  46.2N  122.6W Md=2.3  EMSC   WASHINGTON                   

P: 19JUL2021 135565    46.9N  122.0W 2.0-3.9 AAAAA  Washington state, U.S.     

 

O: 17JUL2021 21:47:04  61.5N  140.4W ML=3.1  EMSC   SOUTHERN YUKON TERRITORY, CANA

P: 14JUL2021 135589    60.0N  139.0W 3.2-5.4 BBAAA  Central Alaska             

 

ROCKY MOUNTAINS REGION

 

O: 17JUL2021 22:03:37  31.6N  104.5W ML=2.5  EMSC   WESTERN TEXAS                

O: 17JUL2021 14:47:22  31.7N  104.4W ML=2.5  EMSC   WESTERN TEXAS                

P: 18JUL2021 135508    32.5N  104.6W 2.0-4.0 AAAAA  SW U.S.A                   

 

 

O: 17JUL2021 15:52:46  44.4N  110.3W Ml=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 09:17:13  44.4N  110.4W Ml=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 19JUL2021 135567    44.2N  110.3W 2.0-4.3 AAAAA  Yellowstone/Wyoming        

 

O: 18JUL2021 05:36:10  44.3N  115.2W ML=3.2  EMSC   SOUTHERN IDAHO

O: 17JUL2021 14:55:09  44.5N  115.2W ML=2.8  EMSC   SOUTHERN IDAHO

O: 17JUL2021 11:09:56  44.3N  115.1W ML=2.5  EMSC   SOUTHERN IDAHO               

O: 17JUL2021 22:07:14  44.6N  115.3W ML=2.6  EMSC   SOUTHERN IDAHO               

P: 17JUL2021 135542    44.4N  115.1W 2.0-4.1 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 17JUL2021 08:12:19  38.0N   98.0W mb=2.3  EMSC   KANSAS                       

P: 18JUL2021 135524    37.0N   98.0W 2.0-3.9 AAAAA  Southern Plains            

 

O: 17JUL2021 21:02:43  42.1N   81.4W ML=4.2  EMSC   LAKE ERIE, OHIO              

P: 16JUL2021 135555    41.0N   81.0W 2.0-4.3 ABAAA  Ohio/Lake Erie             

 

HAWAII

 

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

 

TIDAL STRESSES HELP PROMOTE MODERATE QUAKE IN SOUTH SANDWICH ISLANDS

 

EARTHQUAKE SUMMARY FOR JULY 16, 2021

 

The strongest earthquake in the world today was an M 5.7 in the South Sandwich Islands. It was not reported felt in this region. It occurred within about an hour of local solar midnight, a time when tidal stresses are maximized. Only one earthquake of larger or equal magnitude has occurred in the South Sandwich Islands in the past year - an M 6.0 about 500 km southwest of today's epicenter on March 14, 2021. Forecast 135645 had expected today's event within about 25 km was likely around July 16.

 

O: 17JUL2021 00:53:25  56.1S   27.8W Mw=5.7  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 16JUL2021 135645    56.0S   28.0W 4.0-5.8 AAAAA  So. Sandwich Islands       

 

A strong series of light earthquakes occurred today in the Yellowstone National Park, Wyoming today. The strongest of these was an M 3.6. NEIC reported it was felt with intensity III in Yellowstone and in Jackson, Wyoming. Three events of M>=3 occurred in this swarm. This included an event of M 3.6, the largest in the Yellowstone area since an M 4.6 to the west of July 18, 2017.Several small preliminary events in this swarm occurred and were reported in the previous issue of this summary as:

 

 

"Light earthquakes of M 2.0 and 2.5 occurred in the Yellowstone National Park, Wyoming area today. These events were not reported felt in the area. The M 2.5 is the strongest in eastern Yellowstone since an M 2.6 near this epicenter on December 2, 2020. Swarms of light earthquakes occurred in western Yellowstone in late June, 2021 with maximum magnitudes of M 3.0 and 3.1. An aftershock in this area of M 2.7 occurred on July 12, 2021. The M 2.5 today occurred within about 30 minutes of local solar midnight and may have been enhanced by high tidal stresses which maximize near this hour. A further swarm is likely in this area in the next several days. Forecast 135567 had expected this activity in Yellowstone was likely between July 14 and 19." (July 15-16, 2021)

 

Following is a listing of events in the area with M>2.6. A more complete listing of today's events in Yellowstone can be found under the "ROCKY MOUNTAIN" regional section of this summary.

 

O: 16JUL2021 12:30:39  44.4N  110.4W Md=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 13:00:53  44.4N  110.3W Ml=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 17:22:57  44.4N  110.4W ML=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 19:41:02  44.4N  110.3W Ml=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 05:27:41  44.4N  110.3W Ml=2.8  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 05:59:02  44.4N  110.3W ML=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:54:43  44.5N  110.4W ML=2.8  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 14:12:51  44.5N  110.4W ML=3.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 15:22:34  44.5N  110.3W ML=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 19:44:20  44.5N  110.4W Ml=3.2  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 00:45:36  44.5N  110.4W ML=3.3  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 00:45:35  44.5N  110.4W ML=3.6  ANSS   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 01:05:37  44.5N  110.4W Ml=2.7  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 14JUL2021 135567    44.6N  110.8W 2.0-3.9 AAAAA  Yellowstone/Wyoming        

 

An experimental explosion registering M 3.9 occurred today on a ship off the east coast of central Florida. NEIC reported it was felt with intensity IV in Florida at Ocala and II-III in Jacksonville, Merritt Island and in North Myrtle Beach, South Carolina. This is the second such experimental explosion in the area this summer. A similar A similar explosion of M 3.9 occurred on June 18, a month ago. It was followed by the collapse of a condominium in Surfside, Florida - a suburb of Miami on June 24.

 

O: 16JUL2021 17:48:33  30.1N   79.3W ML=3.9  EMSC   OFF EAST COAST OF UNITED STATE

 

The strongest earthquakes in the U.S. or Canada today were a pair of M 4.0 events in the Gulf of Alaska. They were not reported felt in this region.

This is the strongest earthquake in the Gulf of Alaska since events of M 4.2 on June 9 and M 4.4 on May 18. Forecast 135596 had expected today's activity within about 150 km was likely in the Gulf of Alaska around July 15.

 

O: 16JUL2021 20:01:34  56.5N  148.7W mb=4.0  EMSC   GULF OF ALASKA

O: 16JUL2021 20:44:06  56.6N  148.6W ML=3.1  EMSC   GULF OF ALASKA

O: 16JUL2021 19:10:38  56.3N  148.6W ML=4.0  EMSC   GULF OF ALASKA               

P: 15JUL2021 135596    55.0N  149.0W 3.0-4.6 ABAAA  Gulf of  Alaska            

 

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O: 16JUL2021 14:14:00  23.9N  121.7E mb=4.3  EMSC   TAIWAN                       

P: 17JUL2021 135474    23.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

O: 16JUL2021 07:59:54  31.6N  104.3E mb=4.3  EMSC   EASTERN SICHUAN, CHINA        

P:  8JUL2021 135204    27.0N  104.0E 4.0-5.4 CCAAA  Myanmar                    

 

O: 16JUL2021 19:56:09  39.0N   70.5E mb=4.3  EMSC   TAJIKISTAN                   

P: 16JUL2021 135491    39.0N   71.0E 3.8-5.5 AAAAA  Hindu Kush/Pakistan        

 

O: 16JUL2021 17:29:24  40.4N   83.7E mb=4.3  EMSC   SOUTHERN XINJIANG, CHINA     

P: 15JUL2021 135539    41.0N   83.0E 4.0-5.4 AAAAA  Kirgizstan/Xinjiang        

 

INDONESIA AND PHILIPPINES

 

O: 16JUL2021 07:32:34   2.7S  121.9E ML=4.0  EMSC   SULAWESI, INDONESIA          

P: 15JUL2021 135429     2.0S  123.0E 4.0-5.4 AAAAA  Sulawesi area              

 

O: 16JUL2021 09:34:21   5.6S  146.0E mb=5.0  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 19JUL2021 135420     3.0S  146.0E 4.0-5.4 BCAAA  New Ireland                 

 

O: 16JUL2021 18:07:11   6.4S  130.1E mb=4.3  EMSC   BANDA SEA                    

P: 14JUL2021 135432     7.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 16JUL2021 19:21:44   6.6S  147.3E mb=4.3  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 16JUL2021 135420     6.0S  149.0E 4.0-5.4 AABAA  New Ireland                

 

O: 16JUL2021 08:04:31   8.2S  120.1E mb=4.6  EMSC   FLORES REGION, INDONESIA     

P: 16JUL2021 135417     8.0S  121.0E 4.0-5.4 AAAAA  Flores Island area         

 

O: 16JUL2021 21:14:02  10.4N  126.0E ML=4.0  EMSC   LEYTE, PHILIPPINES           

O: 16JUL2021 23:29:23  14.2N  128.2E mb=5.0  EMSC   EAST OF PHILIPPINE ISLANDS   

P: 15JUL2021 135444    10.0N  127.0E 3.5-4.9 ACAAA  Luzon, Philippines         

 

CENTRAL AND SOUTH AMERICA

 

O: 16JUL2021 20:42:49   3.6S   77.3W mb=5.2  EMSC   PERU-ECUADOR BORDER REGION   

P: 18JUL2021 135416     2.0S   78.0W 4.0-5.7 ABAAA  Ecuador                    

 

NEIC reported this earthquake of M 5.2 on the Peru-Ecuador border  was felt with intensity II-III in the area(s) of the Peru-Ecuador border at Yantzaza, Ecuador (V) and Santo Domingo, Ecuador (IV) and II-III in Ecuador at Macas, Cuenca Azua and Cariamanga.

 

O: 17JUL2021 06:44:37   5.2S   80.7W mb=4.5  EMSC   NEAR COAST OF NORTHERN PERU  

P: 15JUL2021 135422     6.0S   79.0W 4.0-5.7 AABAA  No. Peru                   

 

O: 16JUL2021 07:37:54   6.2N   82.6W mb=4.6  EMSC   SOUTH OF PANAMA              

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 BAAAA  Costa Rica                 

 

NEIC reported this earthquake of M 4.6 south of Panama  was felt with intensity II-III in the area(s) of Panama in Boquette, Chiriqui.

 

O: 16JUL2021 09:26:16   8.8N   70.6W mb=4.4  EMSC   BARINAS, VENEZUELA           

P: 15JUL2021 135411     9.0N   70.0W 4.0-5.5 AAAAA  Venezuela                  

 

O: 16JUL2021 20:49:15  15.9N   95.1W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

O: 17JUL2021 04:37:09  16.9N   95.3W ML=4.1  EMSC   OAXACA, MEXICO               

O: 17JUL2021 06:14:31  17.8N   94.8W ML=4.1  EMSC   VERACRUZ, MEXICO             

P: 17JUL2021 135437    17.0N   95.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 16JUL2021 11:26:48  18.0N   67.1W Md=3.2  EMSC   PUERTO RICO                  

P: 15JUL2021 135455    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 16JUL2021 17:42:02  18.5N   71.8W ML=3.0  EMSC   DOMINICAN REPUBLIC

O: 17JUL2021 03:32:28  19.2N   69.1W ML=3.2  EMSC   DOMINICAN REPUBLIC REGION

O: 16JUL2021 17:39:15  18.5N   71.7W ML=3.2  EMSC   DOMINICAN REPUBLIC           

P: 13JUL2021 135456    19.0N   72.0W 3.4-5.3 BAAAA  Puerto Rico                

P: 18JUL2021 135462    20.0N   71.0W 3.0-4.7 AAAAA  Bahamas/No. Caribbean      

 

O: 16JUL2021 19:26:59  21.1N  106.2W ML=3.9  EMSC   OFFSHORE NAYARIT, MEXICO     

P: 15JUL2021 135439    21.0N  107.0W 3.5-5.3 AAAAA  Coast of Jalisco, Mexico   

 

O: 17JUL2021 04:49:27  19.8S   67.0W mb=4.4  EMSC   POTOSI, BOLIVIA

O: 17JUL2021 00:59:52  21.7S   68.5W mb=4.7  EMSC   ANTOFAGASTA, CHILE           

P: 20JUL2021 135617    21.0S   67.0W 4.0-5.4 BAAAA  Argentina                  

 

O: 17JUL2021 03:19:44  23.5S   67.0W ML=4.2  EMSC   JUJUY, ARGENTINA             

P: 19JUL2021 135620    24.0S   69.0W 4.0-5.6 AABAA  Coast No. Chile            

 

O: 17JUL2021 01:46:48  24.0S   67.3W mb=4.3  EMSC   SALTA, ARGENTINA             

O: 17JUL2021 06:40:30  24.3S   67.2W mb=4.4  EMSC   SALTA, ARGENTINA

P: 20JUL2021 135618    24.0S   66.0W 4.0-5.8 BAAAA  Argentina                  

 

O: 16JUL2021 07:02:27  28.8S   71.2W mb=4.9  EMSC   ATACAMA, CHILE               

P: 20JUL2021 135620    29.0S   71.0W 4.0-5.4 BAAAA  Coast Central Chile        

 

 

AFRICA AND EUROPE

 

O: 16JUL2021 08:44:06  38.2N   39.9E ML=4.0  EMSC   EASTERN TURKEY               

P: 17JUL2021 135526    39.0N   41.0E 3.5-5.6 AAAAA  Turkey                     

 

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

 

SOUTHWEST PACIFIC

 

O: 16JUL2021 10:02:00  17.8S  173.0W Mw=5.4  EMSC   TONGA                        

P: 18JUL2021 135613    16.0S  175.0W 4.0-5.7 ABBAA  Tonga Islands              

 

O: 17JUL2021 03:23:47  20.6S  178.4W Mw=5.5  EMSC   FIJI REGION                  

P: 18JUL2021 135614    19.0S  178.0W 4.0-5.6 ABAAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 17JUL2021 00:53:25  56.1S   27.8W Mw=5.7  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 16JUL2021 135645    56.0S   28.0W 4.0-5.8 AAAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 16JUL2021 15:56:35  29.3S  176.2W mb=5.3  EMSC   KERMADEC ISLANDS REGION      

P: 18JUL2021 135622    29.0S  177.0W 4.0-5.4 AAAAA  No. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 17JUL2021 03:50:30  28.1N  128.1E ML=3.9  EMSC   RYUKYU ISLANDS, JAPAN        

P: 17JUL2021 135472    28.0N  128.0E 4.0-5.4 AAAAA  Ryukyu Islands             

 

O: 16JUL2021 11:50:30  33.2N  139.4E ML=4.4  EMSC   IZU ISLANDS, JAPAN REGION    

P: 17JUL2021 135499    35.0N  139.0E 3.5-4.9 ABAAA  No. Honshu, Japan          

 

O: 17JUL2021 04:27:46  34.0N  141.6E mb=4.2  EMSC   OFF EAST COAST OF HONSHU, JAPA

P: 14JUL2021 135504    33.0N  142.0E 4.0-5.6 BAAAA  Off East Coast Honshu      

 

O: 16JUL2021 22:52:18  42.3N  144.4E mb=4.4  EMSC   HOKKAIDO, JAPAN REGION       

P: 14JUL2021 135536    41.0N  142.0E 3.5-5.5 ABBAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 16JUL2021 09:45:31  31.4N  115.4W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

P: 16JUL2021 135509    31.9N  115.3W 2.5-4.4 AAAAA  So. California             

 

O: 16JUL2021 19:35:16  36.1N  117.3W ML=2.5  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135478    36.2N  117.9W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 16JUL2021 18:14:48  37.2N  118.4W Md=2.4  EMSC   CENTRAL CALIFORNIA           

P: 20JUL2021 135479    37.5N  118.6W 2.5-4.7 BAAAA  California/Nevada area     

 

O: 16JUL2021 20:09:13  38.2N  117.8W ml=3.0  EMSC   NEVADA                       

P: 14JUL2021 135479    38.2N  118.8W 2.5-4.9 AAAAA  California/Nevada area     

 

O: 16JUL2021 15:03:40  38.8N  122.8W Md=2.3  EMSC   NORTHERN CALIFORNIA           

P: 14JUL2021 135486    38.8N  122.8W 2.5-4.4 AAAAA  Central California         

 

 

O: 16JUL2021 11:45:22  38.5N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 13:19:25  38.5N  119.5W MD=2.1  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 15:45:55  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 17:38:11  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 19:13:01  38.5N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 20:28:32  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 22:12:55  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 23:25:41  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 00:32:54  38.5N  119.5W ML=3.0  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 00:44:53  38.5N  119.5W ML=3.4  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 06:53:07  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 17JUL2021 06:54:47  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 10:19:22  38.6N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 21:00:09  38.6N  119.4W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 09:47:14  38.5N  119.5W ML=2.3  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135480    38.8N  119.6W 2.5-4.4 AAAAA  California/Nevada area     

 

ALASKA

 

O: 16JUL2021 20:01:34  56.5N  148.7W mb=4.0  EMSC   GULF OF ALASKA

O: 16JUL2021 20:44:06  56.6N  148.6W ML=3.1  EMSC   GULF OF ALASKA

O: 16JUL2021 19:10:38  56.3N  148.6W ML=4.0  EMSC   GULF OF ALASKA               

P: 15JUL2021 135596    55.0N  149.0W 3.0-4.6 ABAAA  Gulf of  Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 17JUL2021 05:16:26  43.2N  126.8W ML=2.7  EMSC   OFF COAST OF OREGON

O: 16JUL2021 14:19:00  43.2N  127.7W ML=2.7  EMSC   OFF COAST OF OREGON          

P: 17JUL2021 135553    43.1N  126.5W 3.0-4.4 AAAAA  Off Coast of Oregon        

 

O: 16JUL2021 18:17:59  43.6N  119.1W ML=2.0  EMSC   OREGON                       

P: 17JUL2021 135557    42.2N  120.3W 2.0-4.2 ABAAA  Oregon state, U.S.         

 

ROCKY MOUNTAINS REGION

 

O: 17JUL2021 03:57:54  31.3N  103.1W ML=2.9  EMSC   WESTERN TEXAS                

O: 16JUL2021 12:51:42  32.4N  102.1W mb=2.6  EMSC   WESTERN TEXAS                

P: 15JUL2021 135508    31.6N  103.6W 2.0-4.1 AAAAA  SW U.S.A                   

 

O: 16JUL2021 10:34:40  44.4N  110.3W Ml=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:22:41  44.4N  110.4W Ml=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:30:39  44.4N  110.4W Md=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 13:00:53  44.4N  110.3W Ml=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 15:08:26  44.4N  110.3W Ml=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 15:47:19  44.4N  110.4W Ml=2.2  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 16:01:26  44.4N  110.2W ML=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 16:38:47  44.4N  110.4W Ml=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 17:22:57  44.4N  110.4W ML=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 19:41:02  44.4N  110.3W Ml=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 00:10:03  44.4N  110.3W Ml=2.3  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 01:22:35  44.4N  110.4W Ml=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 05:27:41  44.4N  110.3W Ml=2.8  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 05:27:41  44.4N  110.3W Ml=2.8  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 05:59:02  44.4N  110.3W ML=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 09:16:22  44.5N  110.4W Ml=2.3  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:15:25  44.5N  110.4W Ml=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:21:33  44.5N  110.4W Md=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:45:55  44.5N  110.4W Ml=2.2  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:49:41  44.5N  110.4W Ml=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 12:54:43  44.5N  110.4W ML=2.8  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 13:12:02  44.5N  110.4W Md=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 13:39:20  44.5N  110.4W Ml=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 14:12:51  44.5N  110.4W ML=3.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 14:40:10  44.5N  110.4W Ml=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 15:22:34  44.5N  110.3W ML=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 15:43:41  44.5N  110.4W Ml=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 16:58:27  44.5N  110.4W Md=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 16:58:27  44.5N  110.4W Md=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 19:30:17  44.5N  110.4W Ml=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 19:44:20  44.5N  110.4W Ml=3.2  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 00:45:36  44.5N  110.4W ML=3.3  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 00:48:08  44.5N  110.4W Ml=2.4  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 17JUL2021 01:05:37  44.5N  110.4W Ml=2.7  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 07:44:59  44.4N  110.3W Md=2.3  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 14JUL2021 135567    44.6N  110.8W 2.0-3.9 AAAAA  Yellowstone/Wyoming        

P: 19JUL2021 135567    44.2N  110.3W 2.0-4.3 BAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 16JUL2021 17:48:33  30.1N   79.3W ML=3.9  EMSC   OFF EAST COAST OF UNITED STATE

 

O: 17JUL2021 00:04:57  36.1N   97.8W ML=2.0  EMSC   OKLAHOMA                     

P: 18JUL2021 135524    37.0N   98.0W 2.0-3.9 AAAAA  Southern Plains             

 

O: 17JUL2021 02:56:23  36.2N   91.1W Md=2.0  EMSC   ARKANSAS                     

P: 19JUL2021 135523    35.0N   92.0W 2.0-4.4 ABAAA  Southeast U.S.             

 

O: 17JUL2021 03:06:07  38.0N   98.0W mb=2.1  EMSC   KANSAS

O: 17JUL2021 02:43:11  38.0N   98.0W mb=2.2  EMSC   KANSAS                       

P: 18JUL2021 135524    37.0N   98.0W 2.0-3.9 AAAAA  Southern Plains            

 

O: 16JUL2021 08:43:08  44.6N   63.4W MB=1.4  ECAN Lake Echo, NS                  

P: 14JUL2021 135534    46.0N   66.0W 2.0-3.9 ABBAA  E. of Maine                

 

HAWAII

 

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

 

MODERATE QUAKE SOUTH OF TOKYO, JAPAN

 

EARTHQUAKE SUMMARY FOR JULY 15, 2021

 

The strongest earthquake in the world today was an M 5.5 in the Izu Islands area of southern Japan. It was reported with intensity II in Yokohama, Kanagawa, Japan. The mainshock was followed by a series of moderate aftershocks including an M 4.2. The mainshock occurred within about an hour of local solar noon and may have been promoted by high tidal stresses which maximize near this hour. It also occurred in a region where tidal stresses were maximized with the last new moon as noted in previous issues of this summary:

 

"The new moon arrived on July 10, 2021 at 01:17 UT. Longitudes which were anti-solar at this time area near 20 West and those which are sub-solar (local solar noon) are near 160 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the Solomon and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (July 7-14, 2021)

 

Today's M 5.5 is the strongest event in the Izu Islands since an M 5.8 on March 28, 2021. The only other such event in the past 1.5 years was an M 5.9 on October 3, 2020. Forecast 135504 expected today's activity to the east was likely around July 14.

 

O: 16JUL2021 05:51:30  33.2N  139.4E ML=3.8  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 06:01:30  33.2N  139.4E ML=3.8  EMSC   IZU ISLANDS, JAPAN REGION

O: 15JUL2021 14:04:30  33.3N  139.5E ML=3.9  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 04:19:57  33.3N  139.5E Mw=5.5  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 04:30:30  33.3N  139.4E ML=3.9  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 04:55:30  33.3N  139.6E ML=4.2  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 05:09:30  33.2N  139.5E ML=4.2  EMSC   IZU ISLANDS, JAPAN REGION    

P: 14JUL2021 135504    33.0N  142.0E 4.0-5.6 AABAA  Off East Coast Honshu      

 

Light earthquakes of M 2.0 and 2.5 occurred in the Yellowstone National Park, Wyoming area today. These events were not reported felt in the area. The M 2.5 is the strongest in eastern Yellowstone since an M 2.6 near this epicenter on December 2, 2020. Swarms of light earthquakes occurred in western Yellowstone in late June, 2021 with maximum magnitudes of M 3.0 and 3.1. An aftershock in this area of M 2.7 occurred on July 12, 2021. The M 2.5 today occurred within about 30 minutes of local solar midnight and may have been enhanced by high tidal stresses which maximize near this hour. A further swarm is likely in this area in the next several days. Forecast 135567 had expected this activity in Yellowstone was likely between July 14 and 19.

 

O: 16JUL2021 05:53:20  44.5N  110.4W Md=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 06:25:55  44.4N  110.4W Md=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 14JUL2021 135567    44.6N  110.8W 2.0-3.9 AAAAA  Yellowstone/Wyoming        

P: 19JUL2021 135567    44.2N  110.3W 2.0-4.3 BAAAA  Yellowstone/Wyoming        

 

The strongest earthquake in the U.S. or Canada or vicinity today was an M 4.1 in the northern Gulf of California. This continues a swarm of lighter events in the which began July 9. It is the strongest event in this region in at least a year. Forecast 135465 had expected today's event within about 10 km  was likely around July 16.

 

O: 16JUL2021 00:30:00  30.0N  114.0W ML=4.1  EMSC   GULF OF CALIFORNIA            

P: 16JUL2021 135465    30.0N  114.0W 3.5-5.2 AAAAA  Gulf of 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: 15JUL2021 23:29:26  23.9N  121.7E Mw=4.6  EMSC   TAIWAN

O: 15JUL2021 23:33:34  24.0N  121.6E ML=4.2  EMSC   TAIWAN

O: 15JUL2021 23:05:02  23.9N  121.8E mb=4.7  EMSC   TAIWAN                       

P: 17JUL2021 135474    23.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

O: 15JUL2021 07:57:25  39.4N   72.6E mb=4.2  EMSC   KYRGYZSTAN                   

P: 16JUL2021 135491    39.0N   71.0E 3.8-5.5 AAAAA  Hindu Kush/Pakistan        

 

O: 16JUL2021 02:32:00  51.4N  159.5E mb=4.2  EMSC   OFF EAST COAST OF KAMCHATKA  

O: 15JUL2021 21:07:17  52.9N  160.5E mb=4.0  EMSC   OFF EAST COAST OF KAMCHATKA

P: 16JUL2021 135576    52.0N  160.0E 4.0-5.4 AAAAA  E. of Kamchatka            

 

INDONESIA AND PHILIPPINES

 

O: 16JUL2021 05:31:27   0.5S  131.3E ML=4.7  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 21JUL2021 135432     3.0S  130.0E 4.0-5.6 CCAAA  West Irian, PNG            

 

O: 15JUL2021 13:00:27   3.0N  126.9E ML=4.7  EMSC   KEPULAUAN TALAUD, INDONESIA  

O: 15JUL2021 19:38:56   3.9N  127.4E ML=4.2  EMSC   KEPULAUAN TALAUD, INDONESIA

P: 21JUL2021 135408     3.0N  128.0E 4.0-5.4 CAAAA  Halmahera                  

 

O: 16JUL2021 06:18:56   4.6S  153.3E mb=4.8  EMSC   NEW IRELAND REGION, P.N.G.   

P: 15JUL2021 135419     5.0S  153.0E 4.0-5.5 AAAAA  New Britain                

 

O: 15JUL2021 19:10:45   6.9N  126.4E ML=4.4  EMSC   MINDANAO, PHILIPPINES        

P: 19JUL2021 135404     7.0N  126.0E 4.0-5.4 BAAAA  Central Philippines        

 

O: 16JUL2021 05:26:20   8.2S  117.4E ML=4.4  EMSC   SUMBAWA REGION, INDONESIA    

P: 18JUL2021 135430     9.0S  118.0E 4.0-5.5 AAAAA  Sumbawa Island area        

 

O: 15JUL2021 12:48:12   9.4S  113.0E ML=4.1  EMSC   SOUTH OF JAVA, INDONESIA     

P: 21JUL2021 135425     9.0S  114.0E 4.0-5.6 CAAAA  So. of Bali                

 

O: 15JUL2021 10:27:44  19.2N  120.9E ML=4.3  EMSC   BABUYAN ISL REGION, PHILIPPINE

P: 10JUL2021 135209    20.0N  121.0E 4.0-5.4 BAAAA  Taiwan                     

 

 

CENTRAL AND SOUTH AMERICA

 

 

O: 15JUL2021 13:34:19   8.4N   83.1W ML=4.0  EMSC   COSTA RICA                   

P: 19JUL2021 135406     7.0N   82.0W 3.5-5.2 BBAAA  Costa Rica                 

 

O: 15JUL2021 07:57:39  15.6N   93.7W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 15JUL2021 11:51:46  15.0N   92.8W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 16JUL2021 135437    14.0N   93.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 15JUL2021 18:28:25  16.0N   96.0W ML=4.7  EMSC   OAXACA, MEXICO

O: 16JUL2021 04:51:18  15.5N   95.0W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 10JUL2021 135170    15.0N   95.0W 3.5-5.1 CAAAA  Chiapas, Mexico            

 

O: 15JUL2021 12:49:44  17.4N   95.0W ML=4.1  EMSC   VERACRUZ, MEXICO

O: 15JUL2021 16:07:03  17.6N   93.8W ML=4.2  EMSC   VERACRUZ, MEXICO             

P: 17JUL2021 135437    17.0N   95.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 15JUL2021 16:03:55  18.0N   66.9W Md=3.0  EMSC   PUERTO RICO

O: 15JUL2021 09:10:25  17.9N   66.9W Md=3.0  EMSC   PUERTO RICO REGION           

P: 15JUL2021 135455    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 15JUL2021 09:01:01  18.5N   72.0W mb=3.9  EMSC   HAITI REGION                 

P: 18JUL2021 135462    20.0N   71.0W 3.0-4.7 BBAAA  Bahamas/No. Caribbean      

 

NEIC reported this earthquake of M 3.9 in Haiti was felt with intensity II-III in the area(s) of Haiti at Jimani, Delmas, Petionville, Port-au-Prince and Las Terremas Samana, Dominican Republic. 

 

O: 16JUL2021 01:39:15  24.3S   67.4W mb=4.4  EMSC   SALTA, ARGENTINA             

P: 19JUL2021 135620    24.0S   69.0W 4.0-5.6 BABAA  Coast No. Chile            

 

 

AFRICA AND EUROPE

 

O: 16JUL2021 05:52:27  12.8S   45.6E ML=3.1  EMSC   MAYOTTE REGION               

P:  8JUL2021 135354    12.0S   45.0E 3.0-4.6 CAAAA  Madagascar area            

 

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

 

SOUTHWEST PACIFIC

 

O: 15JUL2021 13:00:35  14.5S  167.5E mb=4.5  EMSC   VANUATU                      

P: 14JUL2021 135616    16.0S  168.0E 4.0-5.5 ABAAA  Vanuatu Islands            

 

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

 

OCEAN RIDGES

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O: 15JUL2021 11:12:08  39.9N  143.6E mb=4.6  EMSC   OFF EAST COAST OF HONSHU, JAPA

P: 14JUL2021 135536    41.0N  142.0E 3.5-5.5 ABBAA  Hokkaido, Japan            

 

O: 16JUL2021 05:51:30  33.2N  139.4E ML=3.8  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 06:01:30  33.2N  139.4E ML=3.8  EMSC   IZU ISLANDS, JAPAN REGION

O: 15JUL2021 14:04:30  33.3N  139.5E ML=3.9  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 04:19:57  33.3N  139.5E Mw=5.5  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 04:30:30  33.3N  139.4E ML=3.9  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 04:55:30  33.3N  139.6E ML=4.2  EMSC   IZU ISLANDS, JAPAN REGION

O: 16JUL2021 05:09:30  33.2N  139.5E ML=4.2  EMSC   IZU ISLANDS, JAPAN REGION    

P: 14JUL2021 135504    33.0N  142.0E 4.0-5.6 AABAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 16JUL2021 00:30:00  30.0N  114.0W ML=4.1  EMSC   GULF OF CALIFORNIA           

P: 16JUL2021 135465    30.0N  114.0W 3.5-5.2 AAAAA  Gulf of California         

 

O: 15JUL2021 16:08:51  31.4N  115.4W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 16JUL2021 04:22:38  31.3N  115.5W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

P: 15JUL2021 135509    31.9N  116.3W 2.5-4.4 AAAAA  So. California             

 

O: 15JUL2021 20:57:16  32.8N  115.5W Ml=2.9  EMSC   SOUTHERN CALIFORNIA

O: 15JUL2021 20:58:37  32.8N  115.5W Ml=2.2  EMSC   SOUTHERN CALIFORNIA

O: 15JUL2021 20:54:13  32.8N  115.5W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 16JUL2021 135509    31.9N  115.3W 2.5-4.4 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.9 in Southern California was felt with intensity II-III in the area(s) of Southern California in Imperial, California.

 

O: 16JUL2021 03:56:30  34.0N  117.0W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 14JUL2021 135512    33.9N  116.9W 2.5-4.9 AAAAA  So. California             

 

O: 15JUL2021 15:00:36  35.7N  117.5W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 15JUL2021 135519    35.8N  117.6W 2.5-4.8 AAAAA  So. California             

 

O: 15JUL2021 20:41:27  35.9N  115.1W ml=2.4  EMSC   NEVADA                       

P: 14JUL2021 135496    37.3N  114.9W 2.5-4.9 ABAAA  Nevada area                

 

O: 15JUL2021 10:55:45  36.7N  121.3W Md=2.0  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135484    36.6N  120.7W 2.5-4.6 AAAAA  Central California         

 

O: 15JUL2021 10:17:42  37.1N  117.9W ml=2.1  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135478    36.2N  117.9W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 15JUL2021 18:05:43  37.8N  120.9W Md=2.5  EMSC   NORTHERN CALIFORNIA          

P: 15JUL2021 135485    37.9N  122.0W 2.5-4.4 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.5 in Central California was felt with intensity II-III in the area(s) of Central California in Los Banos.

 

O: 16JUL2021 05:02:42  38.2N  118.0W ML=2.5  EMSC   NEVADA                       

P: 14JUL2021 135479    38.2N  118.8W 2.5-4.9 AAAAA  California/Nevada area     

 

O: 15JUL2021 23:58:04  38.6N  117.3W ml=2.5  EMSC   NEVADA                       

P: 14JUL2021 135478    36.9N  117.4W 2.5-4.9 ABAAA  California/Nevada area     

 

O: 15JUL2021 12:21:47  40.3N  124.6W Md=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 15JUL2021 135552    40.2N  124.2W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

O: 16JUL2021 05:08:13  40.4N  126.9W Ml=2.8  EMSC   OFF COAST OF NORTHERN CALIFORN

P: 19JUL2021 135553    40.4N  127.2W 2.5-4.5 BAAAA  Off Coast of No. Calif     

 

 

O: 15JUL2021 20:37:52  38.4N  119.5W Md=2.0  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 07:13:54  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 12:42:51  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 13:05:42  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 14:18:29  38.5N  119.5W Mw=3.7  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 17:51:09  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 18:02:42  38.5N  119.5W Md=2.0  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 01:03:53  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 06:37:02  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 06:45:18  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 09:08:03  38.6N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 11:12:21  38.6N  119.3W ml=2.1  EMSC   NEVADA

O: 15JUL2021 15:32:12  38.6N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 19:43:08  38.6N  119.4W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 20:26:53  38.6N  119.4W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 02:47:16  38.6N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 16JUL2021 03:06:31  38.6N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135480    38.8N  119.6W 2.5-4.4 AAAAA  California/Nevada area     

 

ALASKA

 

O: 15JUL2021 13:37:36  54.1N  164.6W ml=4.0  EMSC   UNIMAK ISLAND REGION, ALASKA 

P: 17JUL2021 135577    53.7N  165.3W 3.5-4.9 AAAAA  Fox Islands, Aleutians     

 

O: 16JUL2021 05:48:38  55.5N  158.4W ml=3.4  EMSC   ALASKA PENINSULA

O: 15JUL2021 17:35:13  54.6N  159.9W ML=3.3  EMSC   SOUTH OF ALASKA              

P: 15JUL2021 135569    54.8N  158.7W 3.5-5.1 AAAAA  Alaska Peninsula           

P: 18JUL2021 135569    54.9N  159.3W 3.5-5.1 BAAAA  Alaska Peninsula           

 

O: 15JUL2021 20:58:50  62.6N  151.5W ml=3.0  EMSC   CENTRAL ALASKA               

P: 15JUL2021 135592    62.6N  151.4W 3.2-5.1 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 16JUL2021 00:45:52  43.2N  126.8W ML=2.9  EMSC   OFF COAST OF OREGON          

P: 17JUL2021 135553    43.1N  126.5W 3.0-4.4 AAAAA  Off Coast of Oregon        

 

O: 15JUL2021 09:55:04  48.0N  124.8W Ml=2.3  EMSC   OFFSHORE WASHINGTON          

P: 18JUL2021 135566    48.9N  123.1W 2.0-4.2 AABAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 15JUL2021 18:50:19  31.7N  104.4W ML=2.6  EMSC   WESTERN TEXAS                

P: 15JUL2021 135508    31.6N  103.6W 2.0-4.1 AAAAA  SW U.S.A                    

 

O: 16JUL2021 05:53:20  44.5N  110.4W Md=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

O: 16JUL2021 06:25:55  44.4N  110.4W Md=2.5  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 14JUL2021 135567    44.6N  110.8W 2.0-3.9 AAAAA  Yellowstone/Wyoming        

P: 19JUL2021 135567    44.2N  110.3W 2.0-4.3 BAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 15JUL2021 17:56:37  73.6N   84.1W MB=2.5  ECAN Nanisivik, NU                  

O: 15JUL2021 10:01:37  71.8N   72.8W MB=2.3  ECAN Pond Inlet, NU                  

P: 17JUL2021 135601    71.0N   75.0W 2.5-4.2 AAAAA  Baffin/Davis Strait Canada 

 

HAWAII

 

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

 

MODERATE QUAKE SHAKES GUAM

 

EARTHQUAKE SUMMARY FOR JULY 14, 2021

 

The strongest earthquake in the world today was an M 5.3 in the area of Guam. The only event of M>=5.3 in the past year was an M 5.4 on November 24, 2020.  Forecast 135457 had expected today's event within about 150 km was likely around July 17.

 

O: 14JUL2021 09:24:52  12.0N  143.8E Mw=5.3  EMSC   GUAM REGION                  

P: 17JUL2021 135457    13.0N  145.0E 4.0-5.7 BAAAA  So. Marianas/Guam          

 

An earthquake of M 2.8 shook regions of Virginia today. NEIC reported it was felt with intensity II-III in Virginia at Pearlsburg, Dublin, Pulaski, Bland, Redford, Penbroke, Newport, Max Meadows, Blacksburg and Christianburg.

An M 5.1 hit Virginia on August 9, 2020 within about 100 km of today's epicenter. More recent earthquakes of M 2.8 or grater have since occurred on August 11, 2020 (M 2.8) and October 25, 2020 (M 2.8). Forecast 135492 had expected today's event in this area was likely around July 20.

 

O: 15JUL2021 00:55:47  37.3N   80.8W mb=2.4  EMSC   VIRGINIA                     

P: 20JUL2021 135492    37.2N   81.9W 2.0-4.1 BAAAA  Kentucky/Tennessee/NC      

 

A similar M 2.8-3.2 also shook areas of New York State and Ontario, Canada today. NEIC reported it was felt with intensity II-III in Massena, Chase Mills, Norfolk, Norwood, Brasher Falls, Madrid and Morrisburg,  Chesterville, Cornwall, Ontario, Canada.  The last earthquake within about 100 km of this epicenter with M>=3.2 occurred as an M 3.4 on January 13, 2020 and prior to that as an M 3.3 on November 28, 2015. Forecasts 135291 and 135547 had expected today's event between July 7 and 15.

 

 

O: 14JUL2021 23:35:50  45.0N   75.0W mb=2.8  EMSC   NEW YORK                     

O: 14JUL2021 23:35:49  45.0N   75.0W MB=3.2  ECAN Morrisburg, ON                 

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 CAAAA  New York State             

P: 15JUL2021 135547    47.0N   76.0W 2.0-4.2 ABAAA  New York State             

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: 14JUL2021 20:34:50  23.5N   94.8E mb=4.5  EMSC   MYANMAR                      

O: 14JUL2021 20:10:52  22.3N   94.0E mb=4.2  EMSC   MYANMAR

P: 21JUL2021 135469    24.0N   94.0E 4.0-5.5 CAAAA  Myanmar                    

 

O: 14JUL2021 15:36:07  31.0N  103.5E mb=5.0  EMSC   EASTERN SICHUAN, CHINA       

P:  8JUL2021 135204    27.0N  104.0E 4.0-5.4 CCAAA  Myanmar                     

 

NEIC reported this earthquake of M 5.0 in Southern Sichuan, China was felt with intensity II-III in the area(s) of Southern Sichuan, China in Tianpeng, Huayang, Chengou and Nanphong.

 

O: 14JUL2021 08:17:46  36.6N   70.9E mb=4.3  EMSC   HINDU KUSH REGION, AFGHANISTAN

O: 15JUL2021 00:18:33  36.8N   71.3E mb=4.1  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 15JUL2021 135491    37.0N   71.0E 3.8-5.7 AAAAA  Hindu Kush/Pakistan        

 

O: 14JUL2021 23:05:47  51.9N  156.1E mb=4.4  EMSC   KAMCHATKA PENINSULA, RUSSIA  

P: 14JUL2021 135578    51.0N  158.0E 4.0-5.9 AABAA  Kamchatka                  

 

O: 14JUL2021 12:55:33  23.9N  121.6E ML=4.1  TAI    Hualien, Taiwan              

O: 14JUL2021 17:00:43  23.9N  121.6E mb=4.6  EMSC   TAIWAN

O: 14JUL2021 12:55:33  24.0N  121.6E ML=4.1  EMSC   TAIWAN

O: 14JUL2021 17:00:44  23.9N  121.6E ML=4.7  TAI    Hualien, Taiwan              

P: 17JUL2021 135474    23.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

 

CWB reported these earthquakes were felt with intensity IV in Hualien; II in Nantou and I in Yiln, Taichung and Yunlin Counties, Taiwan.

 

INDONESIA AND PHILIPPINES

 

O: 14JUL2021 17:53:00   1.0N  126.1E mb=4.8  EMSC   MOLUCCA SEA                  

P: 17JUL2021 135415     1.0S  127.0E 4.0-5.4 BBAAA  Ceram area                 

 

O: 14JUL2021 10:37:03   1.1S  134.1E ML=4.6  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 15JUL2021 135431     1.0S  137.0E 4.0-5.4 AACAA  West Irian, PNG            

 

O: 14JUL2021 14:46:22   1.6N  127.4E mb=4.3  EMSC   HALMAHERA, INDONESIA         

P: 21JUL2021 135408     3.0N  128.0E 4.0-5.4 CBAAA  Halmahera                  

 

O: 14JUL2021 12:58:19   2.0N  122.3E ML=4.0  EMSC   CELEBES SEA                  

P: 16JUL2021 135409     0.0N  123.0E 4.0-5.5 ABAAA  Mindanao, Philippines      

 

O: 14JUL2021 10:13:47   4.4S  101.6E mb=4.6  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 18JUL2021 135427     6.0S  102.0E 4.0-5.4 BBAAA  So. of Sumatera            

 

O: 14JUL2021 17:21:00   5.3N  124.9E ML=4.4  EMSC   MINDANAO, PHILIPPINES         

P: 18JUL2021 135409     6.0N  124.0E 4.0-5.4 BAAAA  Mindanao, Philippines      

 

O: 14JUL2021 08:10:54   6.4S  128.6E ML=4.3  EMSC   BANDA SEA                    

O: 15JUL2021 03:44:52   7.3S  128.6E mb=4.5  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 17JUL2021 135412     8.0S  128.0E 4.0-5.6 AAAAA  Banda Sea                  

 

O: 14JUL2021 09:24:52  12.0N  143.8E Mw=5.3  EMSC   GUAM REGION                  

P: 17JUL2021 135457    13.0N  145.0E 4.0-5.7 BAAAA  So. Marianas/Guam          

 

O: 14JUL2021 14:55:12  17.6N  121.3E ML=4.0  EMSC   LUZON, PHILIPPINES           

P: 16JUL2021 135445    16.0N  120.0E 3.5-5.1 ABBAA  Luzon, Philippines         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 14JUL2021 20:32     29.2S   71.1W mb=4.0  GUC    Atacama at Alto del Carmen, Fr

P: 15JUL2021 135631    30.0S   72.0W 4.0-5.4 AAAAA  Coast Central Chile        

 

GUC reported this earthquake was felt with intensity III in  Atacama at Alto del Carmen, Freirina and Husasco, Chile.

 

O: 14JUL2021 17:46:16   2.3N   97.6W mb=4.4  EMSC   WEST OF GALAPAGOS ISLANDS    

 

O: 15JUL2021 03:09:30   9.6N   84.0W ML=4.2  EMSC   COSTA RICA                   

P:  6JUL2021 135134     9.0N   84.0W 3.5-5.0 CAAAA  Costa Rica                 

 

O: 15JUL2021 05:02:35  11.8N   87.0W mb=4.3  EMSC   NEAR COAST OF NICARAGUA      

P: 19JUL2021 135450    12.0N   88.0W 3.5-5.2 BAAAA  Nicaragua                  

 

O: 15JUL2021 00:29:07  14.0N   91.1W mb=4.3  EMSC   GUATEMALA                    

P: 15JUL2021 135440    15.0N   91.0W 3.5-5.5 AAAAA  Guatemala                  

 

O: 14JUL2021 09:20:27  15.4N   94.8W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 20JUL2021 135437    15.0N   94.0W 3.5-5.1 CAAAA  Chiapas, Mexico            

 

O: 14JUL2021 14:22:02  15.9N   96.3W ML=4.1  EMSC   OAXACA, MEXICO                

P: 17JUL2021 135437    17.0N   95.0W 3.5-5.1 BBAAA  Chiapas, Mexico            

 

O: 14JUL2021 16:57:51  16.3N   98.2W ML=4.6  EMSC   OAXACA, MEXICO               

P: 14JUL2021 135453    16.0N   98.0W 3.5-5.5 AAAAA  Oaxaca, Mexico              

 

O: 15JUL2021 03:06:00  16.3N  101.0W ML=4.1  EMSC   OFF COAST OF GUERRERO, MEXICO

P: 15JUL2021 135447    18.0N  101.0W 3.5-5.6 ABAAA  Michoacan, Mexico          

 

O: 15JUL2021 01:43:51  16.7N   99.7W ML=4.1  EMSC   GUERRERO, MEXICO             

P: 19JUL2021 135454    17.0N  100.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

O: 14JUL2021 08:15:18  18.6N   68.2W Md=3.4  EMSC   DOMINICAN REPUBLIC REGION    

O: 14JUL2021 07:32:20  19.5N   67.6W Md=3.7  EMSC   PUERTO RICO REGION

O: 15JUL2021 00:13:02  18.9N   67.2W Md=3.2  EMSC   PUERTO RICO REGION           

P: 17JUL2021 135455    18.0N   68.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 14JUL2021 22:16:38  21.7S   68.4W mb=4.3  EMSC   ANTOFAGASTA, CHILE           

P: 20JUL2021 135617    21.0S   67.0W 4.0-5.4 CABAA  Argentina                  

 

O: 14JUL2021 20:32:33  29.2S   71.1W ML=4.0  EMSC   COQUIMBO, CHILE              

P: 15JUL2021 135631    30.0S   72.0W 4.0-5.4 AAAAA  Coast Central Chile        

 

 

AFRICA AND EUROPE

 

O: 14JUL2021 21:20:14  37.2N    5.6W ML=3.1  EMSC   SPAIN                        

P: 15JUL2021 135495    37.0N    3.0W 3.5-5.1 AABAA  Morocco/Spain              

 

O: 14JUL2021 07:04:23  41.2N   43.9E mb=4.1  EMSC   ARMENIA                      

P:  8JUL2021 135277    43.0N   44.0E 3.5-5.2 CBAAA  Caucasus/Caspian Sea       

P: 20JUL2021 135532    43.0N   44.0E 3.5-5.2 CBAAA  Caucasus/Caspian Sea       

 

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

 

SOUTHWEST PACIFIC

 

O: 14JUL2021 21:43:46  18.8S  174.3W mb=4.8  EMSC   TONGA                        

P: 14JUL2021 135613    19.0S  175.0W 4.0-5.9 AAAAA  Tonga Islands              

 

O: 14JUL2021 23:54:13  22.1S  179.3E mb=5.1  EMSC   SOUTH OF FIJI ISLANDS        

P:  4JUL2021 135378    23.0S  179.0E 4.0-5.5 CAAAA  Tonga/Fiji                 

 

OCEAN RIDGES

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 15JUL2021 05:44:44  29.7S  178.8W mb=4.8  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P: 17JUL2021 135633    30.0S  178.0W 4.0-5.4 AAAAA  No. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

No earthquakes of M>=4 were located in Japan or the Kuril Islands today.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 14JUL2021 09:30:01  35.7N  117.5W ML=2.7  EMSC   SOUTHERN CALIFORNIA          

P: 15JUL2021 135519    35.8N  117.6W 2.5-4.8 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.9 in Ridgecrest, California was felt with intensity II-III in the area(s) of Ridgecrest, California.

 

O: 14JUL2021 15:19:13  37.6N  121.8W Md=2.5  EMSC   NORTHERN CALIFORNIA          

P: 17JUL2021 135485    37.7N  121.9W 2.5-4.4 BAAAA  Central California         

 

NEIC reported this earthquake of M 2.5 in Central California was felt with intensity II-III in the area(s) of Central California at San Ramon, San Francisco, El Sobrante and Gustine.

 

O: 14JUL2021 16:02:44  30.6N  114.1W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 15JUL2021 06:24:17  30.1N  114.0W ML=3.9  EMSC   GULF OF CALIFORNIA           

P: 16JUL2021 135465    30.0N  114.0W 3.5-5.2 AAAAA  Gulf of California         

 

O: 14JUL2021 17:25:32  32.8N  115.5W Ml=2.2  EMSC   SOUTHERN CALIFORNIA

O: 14JUL2021 19:47:28  32.8N  115.5W Ml=2.1  EMSC   SOUTHERN CALIFORNIA

O: 14JUL2021 20:26:39  32.8N  115.5W Ml=2.1  EMSC   SOUTHERN CALIFORNIA

O: 14JUL2021 16:26:43  32.8N  115.5W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 16JUL2021 135509    31.9N  115.3W 2.5-4.4 AAAAA  So. California             

 

O: 14JUL2021 09:22:27  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 11:14:51  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 11:33:20  38.5N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 11:33:20  38.5N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 12:36:44  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 14:17:51  38.5N  119.4W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 02:53:47  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 05:54:06  38.5N  119.5W ml=2.6  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 07:07:31  38.6N  119.4W Md=2.0  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 22:54:36  38.6N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 22:56:08  38.6N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 15JUL2021 01:13:47  38.7N  119.3W ml=2.3  EMSC   NEVADA

O: 14JUL2021 08:43:31  38.5N  119.5W Ml=3.2  EMSC   CENTRAL CALIFORNIA           

P: 21JUL2021 135480    38.3N  119.3W 2.5-4.6 CAAAA  California/Nevada area     

 

O: 14JUL2021 23:03:53  38.8N  122.8W Md=2.1  EMSC   NORTHERN CALIFORNIA

O: 14JUL2021 23:37:51  38.8N  122.8W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 14JUL2021 135486    38.8N  122.8W 2.5-4.4 AAAAA  Central California         

 

ALASKA

 

O: 14JUL2021 21:53:06  59.4N  152.6W ML=3.2  EMSC   SOUTHERN ALASKA              

P: 18JUL2021 135590    60.3N  153.0W 3.2-5.2 BAAAA  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: 14JUL2021 19:04:05  41.6N  111.7W Ml=2.3  EMSC   UTAH                         

P: 13JUL2021 135567    43.0N  111.5W 2.0-4.3 ABAAA  Yellowstone/Wyoming        

 

O: 14JUL2021 21:41:49  44.5N  115.2W Ml=2.4  EMSC   SOUTHERN IDAHO               

P: 15JUL2021 135542    44.4N  114.1W 2.0-4.1 AAAAA  Montana/Idaho              

P: 17JUL2021 135542    44.4N  115.1W 2.0-4.1 BAAAA  Montana/Idaho              

 

O: 15JUL2021 02:38:37  45.5N  111.8W Ml=2.2  EMSC   WESTERN MONTANA              

P: 14JUL2021 135543    45.7N  112.1W 2.0-4.0 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 15JUL2021 00:55:47  37.3N   80.8W mb=2.4  EMSC   VIRGINIA                     

P: 20JUL2021 135492    37.2N   81.9W 2.0-4.1 BAAAA  Kentucky/Tennessee/NC      

 

O: 14JUL2021 23:35:50  45.0N   75.0W mb=2.8  EMSC   NEW YORK                     

O: 14JUL2021 23:35:49  45.0N   75.0W MB=3.2  ECAN Morrisburg, ON                 

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 CAAAA  New York State             

P: 15JUL2021 135547    47.0N   76.0W 2.0-4.2 ABAAA  New York State             

 

O: 13JUL2021 13:07:06  47.3N   65.7W MB=1.5  ECAN Miramichi, NB                  

P: 14JUL2021 135534    46.0N   66.0W 2.0-3.9 ABAAA  E. of Maine                

 

O: 13JUL2021 10:42:04  47.4N   70.0W MB=0.6  ECAN Charlevoix Seismic Zone        

P: 17JUL2021 135534    47.0N   70.0W 2.0-3.9 BAAAA  E. of Maine                

 

HAWAII

 

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

 

MODERATE QUAKE IN LOYALTY ISLANDS

 

EARTHQUAKE SUMMARY FOR JULY 13, 2021

 

The strongest earthquake in the world today was an M 5.4 in the Loyalty Islands.

This earthquake was not reported felt in this remote area. Earthquakes of M 5.4-5.5 have occurred most recent in the Loyalty Islands on June 23 and May 15 both with M 5.4-5.5. The last of larger magnitude was an M 5.9 on March 12, 2021.

Forecast 135621 had expected today's event was likely within about 50 around July 16.

 

O: 13JUL2021 11:26:51  23.3S  172.3E Mw=5.4  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 16JUL2021 135621    23.0S  172.0E 4.0-5.4 BAAAA  Loyalty Islands            

 

An M 5.4 also occurred in the Banda Sea, Indonesia today. Earthquakes during 2021 of equal or larger size in the Banda Sea occurred as an M 6.0 on April 3 and  an M 5.6 on June 24, 2021. Forecast 135164 had expected today's event within about 100 km was likely around July 10.

 

O: 13JUL2021 12:45:55   5.1S  130.9E mb=5.4  EMSC   BANDA SEA                    

P: 10JUL2021 135164     6.0S  131.0E 4.0-5.4 BAAAA  West Irian, PNG            

 

The strongest aftershocks in the series following the July 7 quake of M 6.0 in Central California today was an M 4.0 after several days of much reduced aftershock activity. It was reported by NEIC to have been felt with intensity II-III in Coleville, Long Barn, South Lake Tahoe, Arnold, Glenbrook, Groveland, Grizzly Flats, Murphys, Sonor and in Reno, Nevada. The M 4.0 was the strongest earthquake in the U.S. or Canada today. Forecast 135480 had expected this activity was likely within about 30 km around July 16. Following is a listing of aftershocks of M>2.5 today. A more complete listing is located in the "California" regional section of this summary.

 

O: 13JUL2021 12:02:17  38.5N  119.5W ml=2.7  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 17:51:38  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 03:46:14  38.6N  119.5W Mw=4.0  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 04:01:28  38.6N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

P: 16JUL2021 135480    38.8N  119.6W 2.5-4.4 BAAAA  California/Nevada area     

 

A strong swarm of moderate earthquakes occurred today in Taiwan. This series included an M 5.1 and at least eight other events of M>=4. It appears to be an extension of the M 5.3 and 5.2 which hit this epicenter on July 7, 2021. NEIC reported these earthquakes of M 4.7, 4.7 and 5.2 in Taiwan were felt with intensity II-III in the area(s) of Taiwan at Taichung, Changhua, Taipei.  CWB reported the largest of these events of M 5.1 was felt in Taiwan with intensity V in Hualien, III in nmantou, Taichung, Changhua; II in Yilan, Taoyuan, Hsinchu, Miali, Yunlin and I in Taipei, Kaohsiung and Tainan Counties, Taiwan. Forecasts 135209 and 135474 had expected this activity was likely between July 7 and 17 within about 50 km.

 

O: 13JUL2021 22:53:49  23.9N  121.6E ML=4.1  EMSC   TAIWAN

O: 13JUL2021 22:59:24  23.9N  121.7E mb=4.9  EMSC   TAIWAN

O: 13JUL2021 23:02:40  23.9N  121.6E ML=4.0  EMSC   TAIWAN

O: 13JUL2021 23:14:29  23.9N  121.7E mb=4.5  EMSC   TAIWAN

O: 13JUL2021 23:45:26  23.9N  121.7E mb=4.7  EMSC   TAIWAN

O: 14JUL2021 00:11:57  24.0N  121.6E ML=4.0  EMSC   TAIWAN

O: 14JUL2021 03:36:33  24.0N  121.6E ML=4.5  EMSC   TAIWAN

O: 13JUL2021 22:52:05  23.9N  121.6E Mw=5.1  EMSC   TAIWAN                        

O: 14JUL2021 17:00:44  23.9N  121.6E ML=4.7  TAI    Hualien, Taiwan              

O: 14JUL2021 12:55:33  23.9N  121.6E ML=4.1  TAI    Hualien, Taiwan              

P:  7JUL2021 135209    24.0N  122.0E 4.0-5.4 CAAAA  Taiwan                      

P: 17JUL2021 135474    23.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

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: 13JUL2021 22:53:49  23.9N  121.6E ML=4.1  EMSC   TAIWAN

O: 13JUL2021 22:59:24  23.9N  121.7E mb=4.9  EMSC   TAIWAN

O: 13JUL2021 23:02:40  23.9N  121.6E ML=4.0  EMSC   TAIWAN

O: 13JUL2021 23:14:29  23.9N  121.7E mb=4.5  EMSC   TAIWAN

O: 13JUL2021 23:45:26  23.9N  121.7E mb=4.7  EMSC   TAIWAN

O: 14JUL2021 00:11:57  24.0N  121.6E ML=4.0  EMSC   TAIWAN

O: 14JUL2021 03:36:33  24.0N  121.6E ML=4.5  EMSC   TAIWAN

O: 13JUL2021 22:52:05  23.9N  121.6E Mw=5.1  EMSC   TAIWAN                        

P: 17JUL2021 135474    23.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

 

O: 13JUL2021 11:11:51  29.8N   50.9E Mw=5.0  EMSC   SOUTHERN IRAN                

P: 17JUL2021 135473    28.0N   52.0E 3.5-4.9 BBAAA  So. Iran/Persian Gulf       

P: 19JUL2021 135521    31.0N   50.0E 3.8-5.4 CBAAA  So. Iran                   

 

O: 13JUL2021 21:10:34  36.6N   71.0E mb=4.5  EMSC   HINDU KUSH REGION, AFGHANISTAN

O: 14JUL2021 05:47:26  36.6N   70.9E mb=4.0  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 15JUL2021 135491    37.0N   71.0E 3.8-5.7 AAAAA  Hindu Kush/Pakistan        

 

O: 14JUL2021 03:34:33  52.5N  160.6E mb=4.8  EMSC   OFF EAST COAST OF KAMCHATKA

O: 14JUL2021 02:42:59  52.4N  160.5E mb=4.9  EMSC   OFF EAST COAST OF KAMCHATKA  

P: 16JUL2021 135576    52.0N  160.0E 4.0-5.4 AAAAA  E. of Kamchatka            

 

O: 13JUL2021 16:50:59  56.0N  113.4E mb=4.5  EMSC   BURYATIYA, RUSSIA            

P: 19JUL2021 135584    56.0N  110.0E 3.0-4.5 CABAA  So. Siberia                

 

 

INDONESIA AND PHILIPPINES

 

O: 13JUL2021 19:46:52   0.7N  126.3E mb=4.5  EMSC   MOLUCCA SEA                  

P: 10JUL2021 135137     1.0N  125.0E 4.0-5.4 BABAA  Mindanao, Philippines      

 

O: 13JUL2021 12:45:55   5.1S  130.9E mb=5.4  EMSC   BANDA SEA                    

P: 10JUL2021 135164     6.0S  131.0E 4.0-5.4 BAAAA  West Irian, PNG            

 

O: 13JUL2021 08:30:14   6.3S  104.5E mb=4.8  EMSC   SUNDA STRAIT, INDONESIA      

P:  3JUL2021 135158     7.0S  104.0E 4.0-5.4 CAAAA  So. of Sumatera            

 

CENTRAL AND SOUTH AMERICA

 

O: 14JUL2021 05:22     33.2S   70.3W mb=4.8  GUC    Santiago at El Monte, La Flori

P: 16JUL2021 135630    33.0S   68.0W 4.0-5.8 AABAA  Central Chile              

 

GUC reported this earthquake was felt with intensity  III in  Santiago at El Monte, La Florida, Las Condes, Pedro Aguirre Cerda, Penalolen, San Miguel and Santiago and in Valpariso at Quilllota and Villa Alemana, Chile.

 

O: 13JUL2021 23:55     25.5S   69.1W mb=4.9  GUC    Atacama at Diego de Almagro an

P: 19JUL2021 135620    24.0S   69.0W 4.0-5.6 CBAAA  Coast No. Chile            

 

GUC reported this earthquake was felt with intensity IV in  Atacama at Diego de Almagro and El Salvador and II in Copiapo, Tierra Amarilla, Chile.

 

O: 13JUL2021 22:17     28.8S   71.4W mb=4.0  GUC    Atacama at Alto del Carmen, Fr

P:  8JUL2021 135367    29.0S   71.0W 4.0-5.5 BAAAA  Coast Central Chile        

 

GUC reported this earthquake was felt with intensity III in  Atacama at Alto del Carmen, Freirina and Husasco, Chile.

 

O: 13JUL2021 11:36:56   0.9N   80.1W mb=4.4  EMSC   NEAR COAST OF ECUADOR        

P: 14JUL2021 135416     1.0S   81.0W 4.0-5.5 ABAAA  Ecuador                    

 

O: 13JUL2021 18:33:17  11.6N   87.4W mb=4.1  EMSC   NEAR COAST OF NICARAGUA      

P: 19JUL2021 135450    12.0N   88.0W 3.5-5.2 CAAAA  Nicaragua                  

 

O: 13JUL2021 08:29:06  14.2N   92.1W mb=4.6  EMSC   OFFSHORE GUATEMALA           

P: 16JUL2021 135437    14.0N   93.0W 3.5-5.3 BAAAA  Chiapas, Mexico            

 

O: 13JUL2021 11:45:17  15.4N   96.5W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 14JUL2021 135453    16.0N   98.0W 3.5-5.5 AABAA  Oaxaca, Mexico             

 

O: 13JUL2021 17:34:21  17.2N  100.3W ML=4.0  EMSC   GUERRERO, MEXICO             

P: 15JUL2021 135447    18.0N  101.0W 3.5-5.6 AAAAA  Michoacan, Mexico          

P: 19JUL2021 135454    17.0N  100.0W 3.5-5.3 CAAAA  Oaxaca, Mexico             

 

O: 13JUL2021 14:35:20  18.0N  102.9W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 14JUL2021 135448    19.0N  102.0W 3.5-5.2 AAAAA  Michoacan, Mexico          

 

O: 14JUL2021 05:49:50  21.2N  106.4W ML=3.7  EMSC   ISLAS MARIAS REG., NAYARIT, ME

P: 15JUL2021 135439    21.0N  107.0W 3.5-5.3 AAAAA  Coast of Jalisco, Mexico   

 

O: 13JUL2021 15:44:14  22.1S   67.5W mb=4.5  EMSC   POTOSI, BOLIVIA              

P: 17JUL2021 135618    23.0S   64.0W 4.0-5.8 BACAA  Argentina                  

 

O: 13JUL2021 08:50:12  24.0S   66.9W mb=4.2  EMSC   JUJUY, ARGENTINA             

P: 20JUL2021 135618    24.0S   66.0W 4.0-5.8 CAAAA  Argentina                   

 

O: 13JUL2021 23:55:16  25.8S   69.0W mb=4.9  EMSC   ATACAMA, CHILE               

P: 19JUL2021 135620    24.0S   69.0W 4.0-5.6 CBAAA  Coast No. Chile            

 

O: 13JUL2021 22:17:41  28.8S   71.5W mb=4.1  EMSC   OFFSHORE ATACAMA, CHILE      

P: 15JUL2021 135631    30.0S   72.0W 4.0-5.4 ABAAA  Coast Central Chile        

 

O: 14JUL2021 05:22:33  33.2S   70.3W Mw=4.8  EMSC   REGION METROPOLITANA, CHILE  

P: 16JUL2021 135630    33.0S   68.0W 4.0-5.8 AABAA  Central Chile              

 

NEIC reported this earthquake of M 4.8 in Santiago, Chile was felt with intensity II-III in the area(s) of Santiago, Chile at Puente Alto, Lampa, San Bernardo, Metropolitana and Machail, O'Higgins.

 

 

AFRICA AND EUROPE

 

O: 13JUL2021 13:07:34  39.8N   12.9E mb=4.2  EMSC   TYRRHENIAN SEA               

P:  5JUL2021 135233    39.0N   14.0E 3.0-4.6 CAAAA  Mediterranean/Sicily       

 

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

 

SOUTHWEST PACIFIC

 

O: 13JUL2021 08:30:14   6.3S  104.5E mb=4.8  EMSC   SUNDA STRAIT, INDONESIA      

P:  3JUL2021 135158     7.0S  104.0E 4.0-5.4 CAAAA  So. of Sumatera            

 

O: 14JUL2021 02:08:17  18.4S  174.1W mb=5.1  EMSC   TONGA                        

P: 14JUL2021 135613    19.0S  175.0W 4.0-5.9 AAAAA  Tonga Islands              

 

NEIC reported this earthquake of M 5.1 in Tonga was felt with intensity II-III in the area(s) of Tonga at Neiafu, Vavau, Tonga.

 

O: 13JUL2021 15:02:10  25.3S  180.0E mb=4.5  EMSC   SOUTH OF FIJI ISLANDS        

P: 20JUL2021 135629    24.0S  179.0E 4.0-5.6 CBAAA  Tonga/Fiji                 

 

O: 13JUL2021 11:26:51  23.3S  172.3E Mw=5.4  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 16JUL2021 135621    23.0S  172.0E 4.0-5.4 BAAAA  Loyalty Islands            

 

OCEAN RIDGES

 

O: 14JUL2021 02:45:48   4.9S   11.4W mb=5.0  EMSC   NORTH OF ASCENSION ISLAND    

P: 10JUL2021 135154     2.0S   13.0W 4.0-5.4 BCBAA  No. of Ascension Isl       

P: 21JUL2021 135423     5.0S   12.0W 4.0-5.4 CAAAA  No. of Ascension Isl       

 

O: 13JUL2021 20:45:22  27.8S   63.8E mb=4.9  EMSC   SOUTHWEST INDIAN RIDGE       

P:  9JUL2021 135373    28.0S   66.0E 4.0-5.4 BACAA  So. Indian Ocean           

P: 19JUL2021 135626    29.0S   62.0E 4.0-5.5 CBBAA  So. Indian Ocean           

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 13JUL2021 08:06:42  28.4S  179.7E mb=4.0  EMSC   KERMADEC ISLANDS REGION      

P:  6JUL2021 135385    30.0S  179.0E 4.0-5.4 CBAAA  No. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 13JUL2021 23:58:50  31.1N  141.8E mb=4.4  EMSC   IZU ISLANDS, JAPAN REGION    

P: 15JUL2021 135504    31.0N  141.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

O: 13JUL2021 19:09:30  31.3N  131.7E ML=4.0  EMSC   KYUSHU, JAPAN                

P: 15JUL2021 135493    31.0N  132.0E 3.5-5.0 AAAAA  Kyushu, Japan area         

 

O: 14JUL2021 05:27:30  37.0N  141.5E ML=4.1  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 17JUL2021 135505    37.0N  142.0E 4.0-5.4 BAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 13JUL2021 07:16:41  30.7N  113.9W ML=3.6  EMSC   GULF OF CALIFORNIA

O: 13JUL2021 20:08:48  30.2N  114.2W ML=3.6  EMSC   GULF OF CALIFORNIA           

P: 16JUL2021 135465    30.0N  114.0W 3.5-5.2 BAAAA  Gulf of California         

 

O: 14JUL2021 06:55:45  31.4N  115.5W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

P: 15JUL2021 135509    31.9N  116.3W 2.5-4.4 AAAAA  So. California             

 

O: 13JUL2021 16:45:40  32.4N  115.2W ML=2.8  EMSC   BAJA CALIFORNIA, MEXICO      

P: 11JUL2021 135251    32.8N  116.0W 2.5-4.4 AAAAA  So. California             

 

O: 13JUL2021 17:35:08  33.9N  116.0W ML=2.6  EMSC   SOUTHERN CALIFORNIA

O: 14JUL2021 00:13:50  34.0N  116.6W Ml=2.1  EMSC   SOUTHERN CALIFORNIA

O: 13JUL2021 17:32:00  33.9N  116.0W Ml=2.4  EMSC   SOUTHERN CALIFORNIA          

P: 11JUL2021 135253    33.4N  116.7W 2.5-4.9 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.7 in Southern California was felt with intensity II-III in the area(s) of Southern California at San Jacinto.

 

O: 13JUL2021 13:25:04  34.8N  116.4W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 17JUL2021 135514    34.3N  116.5W 2.5-4.8 BAAAA  So. California             

 

O: 14JUL2021 04:43:14  36.0N  117.7W Ml=2.0  EMSC   CENTRAL CALIFORNIA           

P: 15JUL2021 135519    35.8N  117.6W 2.5-4.8 AAAAA  So. California             

 

O: 13JUL2021 13:55:43  37.4N  120.4W Md=2.4  EMSC   CENTRAL CALIFORNIA           

P: 17JUL2021 135485    37.7N  121.9W 2.5-4.4 BAAAA  Central California         

 

O: 14JUL2021 04:15:44  38.2N  117.9W ml=2.3  EMSC   NEVADA                       

P: 10JUL2021 135216    37.8N  118.2W 2.5-4.9 BAAAA  California/Nevada area     

 

O: 13JUL2021 12:55:19  40.3N  124.4W Md=2.2  EMSC   NORTHERN CALIFORNIA          

P: 15JUL2021 135552    40.2N  124.2W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

O: 13JUL2021 18:53:01  41.3N  121.9W Md=2.2  EMSC   NORTHERN CALIFORNIA          

P: 16JUL2021 135551    40.7N  122.3W 2.5-4.6 BAAAA  Northern California        

 

O: 13JUL2021 12:02:17  38.5N  119.5W ml=2.7  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 12:20:46  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 12:42:01  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 13:28:04  38.5N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 17:51:38  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 20:50:42  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 04:05:10  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 05:26:53  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 07:00:05  38.6N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 22:47:52  38.6N  119.6W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 03:45:05  38.6N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 03:46:14  38.6N  119.5W Mw=4.0  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 03:55:50  38.6N  119.5W Md=2.0  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 04:01:28  38.6N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 04:06:27  38.6N  119.5W MD=2.2  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 04:19:10  38.6N  119.5W MD=2.2  EMSC   CENTRAL CALIFORNIA

O: 14JUL2021 05:15:58  38.6N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 10:37:26  38.4N  119.5W Md=2.3  EMSC   CENTRAL CALIFORNIA           

P: 16JUL2021 135480    38.8N  119.6W 2.5-4.4 BAAAA  California/Nevada area     

 

ALASKA

 

O: 13JUL2021 16:58:52  51.8N  178.3E ML=3.5  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 15JUL2021 135582    51.0N  178.0E 4.0-5.9 AAAAA  Rat Islands                

 

O: 13JUL2021 20:29:57  52.2N  170.0W mb=3.8  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 14JUL2021 135574    52.3N  171.3W 3.5-5.1 AAAAA  Andreanoff Isls, Aleutians 

 

O: 13JUL2021 10:12:28  69.3N  144.5W ml=3.2  EMSC   NORTHERN ALASKA              

P: 15JUL2021 135596    68.0N  144.0W 3.0-4.6 ABAAA  Northern Alaska            

 

No events of M>=3 were located in Alaska today.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

NEIC reported this earthquake of M 2.8 in Seattle, Washington was felt with intensity II-III in the area(s) of Seattle, Washington at Renton, and Seattle.

 

 

ROCKY MOUNTAINS REGION

 

O: 14JUL2021 01:02:38  44.3N  114.8W Ml=2.1  EMSC   SOUTHERN IDAHO

P: 15JUL2021 135542    44.4N  114.1W 2.0-4.1 AAAAA  Montana/Idaho              

 

NEIC reported this earthquake of M 3.0 in Southern Idaho was felt with intensity II-III in the area(s) of Southern Idaho at Meridian.

 

O: 13JUL2021 12:40:27  31.7N  104.1W ML=2.6  EMSC   WESTERN TEXAS                

P: 15JUL2021 135508    31.6N  103.6W 2.0-4.1 AAAAA  SW U.S.A                   

 

O: 13JUL2021 07:15:28  44.3N  115.1W Ml=3.0  EMSC   SOUTHERN IDAHO               

P: 14JUL2021 135542    44.4N  116.2W 2.0-4.1 AAAAA  Montana/Idaho              

P: 17JUL2021 135542    44.4N  115.1W 2.0-4.1 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 14JUL2021 00:37:45  29.2N   97.6W mb=2.5  EMSC   SOUTHERN TEXAS               

P:  8JUL2021 135205    28.0N   99.0W 3.0-4.5 CBAAA  Northern Mexico            

 

NEIC reported this earthquake of M 2.8 in Southern Texas was felt with intensity II-III in the area(s) of Southern Texas at Goldthwaite.

 

O: 13JUL2021 23:18:54  36.4N   96.9W ML=2.2  EMSC   OKLAHOMA

O: 13JUL2021 18:46:02  35.1N   95.4W ML=2.4  EMSC   OKLAHOMA                     

P: 16JUL2021 135524    35.0N   96.0W 2.0-4.2 BAAAA  Southern Plains             

 

O: 13JUL2021 06:53:57  45.5N   76.0W MB=2.4  ECAN Constance Bay, ON              

P: 15JUL2021 135547    47.0N   76.0W 2.0-4.2 ABAAA  New York State             

 

O: 12JUL2021 20:37:15  44.4N   74.1W MB=2.1  ECAN U.S.                           

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 BAAAA  New York State             

 

O: 12JUL2021 13:58:42  47.4N   70.2W MB=1.1  ECAN Charlevoix Seismic Zone        

P: 17JUL2021 135534    47.0N   70.0W 2.0-3.9 BAAAA  E. of Maine                

 

O: 12JUL2021 12:14:56  49.5N   66.8W MB=1.9  ECAN Cap-Chat, QC                   

P: 14JUL2021 135540    49.3N   67.5W 2.0-3.9 AAAAA  Maine                      

 

HAWAII

 

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

 

MODERATE QUAKES SHAKE NORTHWEST PACIFIC; NICARAGUA

 

EARTHQUAKE SUMMARY FOR JULY 12, 2021

 

The strongest earthquakes in the world today were an M 5.8 in the Kuril Islands; an M 5.3 in Kamchatka and an M 5.2 in the area of Nicaragua. This is the strongest earthquake in Nicaragua since an M 5.5 on May 21, 2021, part of a swarm at that time.  NEIC reported today's earthquake of M 5.2 in Nicaragua was felt with intensity IV-V   in the area(s) of Nicaragua at El Crucero, San Marcos, Managua and II-III in Masayam and Tola. Forecast 135184 had expected today's event in Nicaragua was likely around July 8 within about 50 km of this epicenter.

 

O: 12JUL2021 23:26:35  11.7N   86.4W Mw=5.2  EMSC   NEAR COAST OF NICARAGUA      

P:  8JUL2021 135184    12.0N   86.0W 3.5-5.3 BAAAA  Nicaragua                  

 

An earthquake of M 5.8 occurred about 400 km southwest of today's Kuril Island epicenter on March 2. 2021, but there have been no such earthquakes within  about 200 km of today's epicenter since an M 7.0 on February 13, 2020 and an M 5.6 on December 5, 2019.  Forecast 135308 had expected seismic enhancement in this region in early July. This may have been promoted by high tidal stresses associated with the new moon of July 10 as it occurred near the longitude of maximum tidal stress within about an hour of local solar noon. The expected enhancement with the new moon had been noted in previous issues of this summary as:

 

"The new moon arrived on July 10, 2021 at 01:17 UT. Longitudes which were anti-solar at this time area near 20 West and those which are sub-solar (local solar noon) are near 160 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the Solomon and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (July 8-13, 2021)

 

O: 13JUL2021 00:30:16  46.2N  151.6E Mw=5.6  EMSC   KURIL ISLANDS                

P:  4JUL2021 135308    47.0N  151.0E 3.5-5.4 CAAAA  So. Kurils                 

 

The event in the Kuril Islands was accompanied about two hours later by an M  5.3 in Kamchatka, also within about an hour of local solar noon. It too was probably promoted by high tidal stresses. The only earthquake in Kamchatka of M>5.3 in the past year was an M 6.6 about 300 km northeast of today's event on March 16, 2021. Forecasts 135323 and 135576 had expected today's activity in Kamchatka was likely between July 7 and 16.

 

O: 12JUL2021 23:06:10  52.7N  160.3E mb=4.7  EMSC   OFF EAST COAST OF KAMCHATKA

O: 13JUL2021 02:28:54  52.5N  160.4E Mw=5.3  EMSC   OFF EAST COAST OF KAMCHATKA  

P:  7JUL2021 135323    54.0N  161.0E 4.0-5.4 CBAAA  E. of Kamchatka            

P: 16JUL2021 135576    52.0N  160.0E 4.0-5.4 BAAAA  E. of Kamchatka            

 

The strongest earthquake in the U.S. or Canada today was an M 4.2 in New Mexico. NEIC reported it was felt with intensity V in New Mexico at Gallina, Lindrift, IV in Coyote, Tierra Amarilla, and II-III in Counselor, La Jara, Regina, Jemez Springs, El Rito, Abiquiu. NEIC reported an aftershock of M 3.7 in New Mexico was felt with intensity II-III in the area(s) of New Mexico at Lindrith, Jemez Springs, El Rito, Abquiu, Tierra Amarilla, Dulce, Los Alamos, Espanola, Broomfield, Santa Fe. A foreshock of M 3.0 in the region of New Mexico was reported felt with intensity II-III in Abiquiu and Los Alamos. The last earthquake in New Mexico within about 200 km of today's epicenter with M>=4.2 occurred on August 1, 2004 about 200 km to the northeast of today's epicenter with M 4.3.  Forecasts 135227 and 135489 had expected today's activity was likely between July 8 and 13 to the north of today's epicenter.

 

O: 12JUL2021 16:06:14  36.2N  106.8W ML=3.7  EMSC   NEW MEXICO

O: 12JUL2021 13:44:29  36.3N  106.8W ML=3.0  EMSC   NEW MEXICO

O: 13JUL2021 00:40:23  36.3N  106.8W ML=2.7  EMSC   NEW MEXICO

O: 12JUL2021 15:33:36  36.2N  106.7W Mw=4.2  EMSC   NEW MEXICO                   

P:  8JUL2021 135227    38.8N  107.4W 2.0-4.0 BCAAA  Colorado area              

P: 13JUL2021 135489    36.5N  106.0W 2.0-3.9 AAAAA  Colorado area              

 

The aftershock sequence near the California-Nevada border continued today with a series of minor shocks. The largest aftershock today was an M 2.6 and was lightly felt in the Markleeville area.

 

Following are event of M>2.5 in the area today. A more extensive listing can be found in the "California" regional forecast later in this summary. Forecast

135217 and 135218 had expected this activity was likely within about 25 km of these epicenters in early July.

 

O: 12JUL2021 15:43:06  38.6N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

P:  8JUL2021 135218    39.3N  120.0W 2.5-4.4 BAAAA  California/Nevada area     

P: 14JUL2021 135479    38.2N  118.8W 2.5-4.9 AAAAA  California/Nevada area     

P: 16JUL2021 135480    38.8N  119.6W 2.5-4.4 BAAAA  California/Nevada area     

 

An unusual earthquake of M 3.1 was recorded about 150 km southeast of Hawaii today. Only one other event of M>=3.1 has been recorded within about 100 km of today's epicenter in the past 30 years - an M 3.1 on March 29, 2021. An M 3.2  occurred about 100 km to the north of this on August 19, 2013. Forecast 135176 had expected activity south of Hawaii in early July.

 

O: 12JUL2021 23:42:03  18.0N  154.1W ML=3.1  EMSC   HAWAIIAN ISLANDS REGION      

P:  5JUL2021 135176    18.9N  155.1W 3.0-4.6 CAAAA  Hawaii                     

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: 12JUL2021 16:48:25  38.6N   99.7E mb=4.4  EMSC   NORTHERN QINGHAI, CHINA      

P:  6JUL2021 135262    36.0N  100.0E 3.5-5.2 CCAAA  So. China                  

P: 13JUL2021 135520    38.0N   97.0E 3.5-4.9 AABAA  So. China                  

 

O: 13JUL2021 01:08:38  39.1N   70.7E mb=4.1  EMSC   TAJIKISTAN                    

P: 11JUL2021 135230    39.0N   72.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O: 12JUL2021 23:06:10  52.7N  160.3E mb=4.7  EMSC   OFF EAST COAST OF KAMCHATKA

O: 13JUL2021 02:28:54  52.5N  160.4E Mw=5.3  EMSC   OFF EAST COAST OF KAMCHATKA  

P:  7JUL2021 135323    54.0N  161.0E 4.0-5.4 CBAAA  E. of Kamchatka            

P: 16JUL2021 135576    52.0N  160.0E 4.0-5.4 BAAAA  E. of Kamchatka            

 

O: 12JUL2021 11:41:30  56.0N  164.4E mb=4.6  EMSC   KOMANDORSKIYE OSTROVA REGION 

P:  7JUL2021 135326    55.0N  164.0E 4.0-6.1 BAAAA  Komandorsky Isl            

 

INDONESIA AND PHILIPPINES

 

O: 13JUL2021 02:03:59   3.3S  142.9E ML=4.4  EMSC   NEAR N COAST OF NEW GUINEA, PN

P:  5JUL2021 135155     4.0S  144.0E 4.0-5.8 CAAAA  Papua New Guinea            

 

O: 12JUL2021 12:51:56   3.8S  140.2E mb=4.6  EMSC   PAPUA, INDONESIA             

P:  4JUL2021 135155     3.0S  140.0E 4.0-5.4 CAAAA  Papua New Guinea           

P: 14JUL2021 135424     4.0S  140.0E 4.0-5.6 AAAAA  Papua New Guinea           

 

O: 12JUL2021 10:35:08   6.9S  129.4E mb=4.5  EMSC   BANDA SEA                    

P:  9JUL2021 135164     7.0S  130.0E 4.0-5.4 BAAAA  West Irian, PNG            

 

O: 12JUL2021 11:25:42   7.7N  124.9E ML=4.2  EMSC   MINDANAO, PHILIPPINES        

P:  7JUL2021 135131     8.0N  125.0E 4.0-5.6 BAAAA  Central Philippines        

 

CENTRAL AND SOUTH AMERICA

 

O: 12JUL2021 23:26:35  11.7N   86.4W Mw=5.2  EMSC   NEAR COAST OF NICARAGUA      

P:  8JUL2021 135184    12.0N   86.0W 3.5-5.3 BAAAA  Nicaragua                   

 

O: 12JUL2021 13:10:49  17.3N   94.6W ML=4.1  EMSC   VERACRUZ, MEXICO             

P:  7JUL2021 135170    17.0N   95.0W 3.5-5.1 BAAAA  Chiapas, Mexico            

 

O: 12JUL2021 22:58:52  18.6N   67.1W Md=3.1  EMSC   PUERTO RICO REGION           

P: 10JUL2021 135187    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 12JUL2021 09:39:05  28.8S   71.5W ML=4.0  EMSC   ATACAMA, CHILE               

P:  8JUL2021 135367    29.0S   71.0W 4.0-5.5 BAAAA  Coast Central Chile        

 

AFRICA AND EUROPE

 

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

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O: 12JUL2021 11:25:30  38.6N  142.0E ML=4.1  EMSC   NEAR EAST COAST OF HONSHU, JAP

P:  7JUL2021 135264    38.0N  143.0E 4.0-5.4 BAAAA  So. of Honshu              

 

O: 13JUL2021 04:28:11  46.3N  151.6E mb=4.4  EMSC   KURIL ISLANDS

O: 13JUL2021 00:30:16  46.2N  151.6E Mw=5.6  EMSC   KURIL ISLANDS                

P:  4JUL2021 135308    47.0N  151.0E 3.5-5.4 CAAAA  So. Kurils                 

 

O: 12JUL2021 22:37:14  48.4N  154.6E mb=4.5  EMSC   KURIL ISLANDS                

P:  7JUL2021 135308    49.0N  153.0E 3.5-5.4 BAAAA  So. Kurils                 

P: 14JUL2021 135563    49.0N  153.0E 3.5-5.4 AAAAA  So. Kurils                 

 

O: 12JUL2021 13:48:28  32.0N  141.8E mb=4.7  EMSC   IZU ISLANDS, JAPAN REGION    

P:  6JUL2021 135242    33.0N  142.0E 4.0-5.7 CAAAA  Off East Coast Honshu      

P: 14JUL2021 135504    33.0N  142.0E 4.0-5.6 AAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 12JUL2021 20:53:24  30.4N  116.9W ML=3.6  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P:  8JUL2021 135250    32.0N  117.4W 2.5-4.7 BBAAA  So. California             

 

O: 12JUL2021 10:05:20  31.0N  115.3W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

P:  7JUL2021 135251    31.8N  115.6W 2.5-4.4 BAAAA  So. California             

 

O: 12JUL2021 19:11:36  34.3N  117.1W Ml=2.3  EMSC   SOUTHERN CALIFORNIA          

P: 14JUL2021 135512    33.9N  116.9W 2.5-4.9 AAAAA  So. California             

 

O: 13JUL2021 02:31:26  35.7N  117.5W Ml=2.4  EMSC   SOUTHERN CALIFORNIA

O: 12JUL2021 22:47:32  35.7N  117.5W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 10JUL2021 135261    35.7N  118.1W 2.5-4.7 AAAAA  So. California             

 

O: 13JUL2021 01:11:15  35.9N  117.7W Ml=2.0  EMSC   CENTRAL CALIFORNIA           

P: 10JUL2021 135261    35.7N  118.1W 2.5-4.7 BAAAA  So. California             

 

O: 13JUL2021 04:44:18  36.2N  120.8W ML=2.5  EMSC   CENTRAL CALIFORNIA           

P: 14JUL2021 135484    36.2N  120.8W 2.5-4.5 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.8 in Central California was felt with intensity II-III in the area(s) of Central California in King City.

 

O: 12JUL2021 10:43:08  36.7N  120.7W Md=2.0  EMSC   CENTRAL CALIFORNIA           

P: 10JUL2021 135219    36.2N  121.8W 2.5-4.6 AAAAA  Central California         

P: 16JUL2021 135484    36.6N  120.7W 2.5-4.6 BAAAA  Central California         

 

O: 12JUL2021 10:56:28  38.2N  117.9W ml=2.9  EMSC   NEVADA                       

P: 14JUL2021 135479    38.2N  118.8W 2.5-4.9 AAAAA  California/Nevada area     

 

O: 13JUL2021 00:29:37  38.3N  120.4W Md=2.3  EMSC   NORTHERN CALIFORNIA          

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 CAAAA  California/Nevada area     

 

NEIC reported this earthquake of M 2.5 in Northern California was felt with intensity II-III in the area(s) of Northern California at Gustine.

 

 

O: 12JUL2021 14:07:57  38.3N  119.4W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 14:07:57  38.3N  119.4W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 07:18:28  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 07:36:56  38.5N  119.6W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 10:22:59  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 11:14:13  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 13:04:10  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 22:53:18  38.5N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 06:05:32  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 07:57:56  38.6N  119.5W MD=2.2  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 15:25:48  38.6N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 15:43:06  38.6N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 16:29:54  38.6N  119.5W MD=2.2  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 16:37:52  38.6N  119.5W Md=2.3  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 18:20:28  38.6N  119.5W ml=2.5  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 00:32:54  38.6N  119.5W ml=2.5  EMSC   CENTRAL CALIFORNIA

O: 13JUL2021 03:54:45  38.2N  119.2W ml=2.2  EMSC   CENTRAL CALIFORNIA           

P: 14JUL2021 135479    38.2N  118.8W 2.5-4.9 AAAAA  California/Nevada area     

P: 16JUL2021 135480    38.8N  119.6W 2.5-4.4 BAAAA  California/Nevada area     

 

ALASKA

 

O: 13JUL2021 02:11:45  52.8N  168.1W ml=4.1  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 15JUL2021 135577    51.9N  169.2W 3.5-5.0 AAAAA  Fox Islands, Aleutians     

 

O: 12JUL2021 22:01:16  63.2N  150.5W ml=3.9  EMSC   CENTRAL ALASKA               

P: 15JUL2021 135592    63.3N  151.0W 3.2-5.1 BAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 13JUL2021 05:34:44  47.5N  122.3W Md=2.2  EMSC   SEATTLE-TACOMA AREA, WASHINGTO

O: 13JUL2021 03:22:48  47.7N  121.8W Md=2.4  EMSC   WASHINGTON                   

P: 16JUL2021 135565    47.5N  121.8W 2.0-3.9 BAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 12JUL2021 16:06:14  36.2N  106.8W ML=3.7  EMSC   NEW MEXICO

O: 12JUL2021 13:44:29  36.3N  106.8W ML=3.0  EMSC   NEW MEXICO

O: 13JUL2021 00:40:23  36.3N  106.8W ML=2.7  EMSC   NEW MEXICO

O: 12JUL2021 15:33:36  36.2N  106.7W Mw=4.2  EMSC   NEW MEXICO                   

P:  8JUL2021 135227    38.8N  107.4W 2.0-4.0 BCAAA  Colorado area              

P: 13JUL2021 135489    36.5N  106.0W 2.0-3.9 AAAAA  Colorado area              

 

O: 12JUL2021 13:48:11  32.1N  102.1W ML=2.5  EMSC   WESTERN TEXAS                

P:  9JUL2021 135247    31.6N  103.6W 2.0-3.9 BAAAA  SW U.S.A                   

 

NEIC reported this earthquake of M 2.6 in Western Texas was felt with intensity II-III in the area(s) of Western Texas at Midland.

 

O: 12JUL2021 17:34:12  44.7N  110.8W Ml=2.7  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P:  6JUL2021 135313    44.6N  110.8W 2.0-4.1 CAAAA  Yellowstone/Wyoming        

P: 14JUL2021 135567    44.6N  110.8W 2.0-3.9 AAAAA  Yellowstone/Wyoming        

 

O: 12JUL2021 09:14:30  45.2N  113.0W Ml=2.1  EMSC   WESTERN MONTANA              

P:  9JUL2021 135314    44.8N  111.9W 2.0-3.9 BAAAA  Yellowstone/Wyoming        

P: 14JUL2021 135543    45.7N  112.1W 2.0-4.0 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 12JUL2021 17:03:58  37.1N   98.0W mb=3.0  EMSC   KANSAS                       

P:  8JUL2021 135268    37.0N   97.0W 2.0-4.1 BAAAA  Southern Plains            

 

NEIC reported this earthquake of M 3.0 in Anthony, Kansas was felt with intensity IV in the area(s) of Anthony, Kansas.

 

O: 11JUL2021 12:21:15  51.8N   92.0W MB=2.1  ECAN Pickle Lake, ON                

 

O: 11JUL2021 05:20:27  72.0N   74.9W MB=2.4  ECAN Pond Inlet, NU                 

P:  9JUL2021 135347    73.3N   73.5W 2.5-4.1 ABAAA  Baffin/Davis Strait Canada 

 

O: 10JUL2021 00:41:53  45.4N   77.4W MB=1.8  ECAN Barry's Bay, ON                

O:  9JUL2021 05:36:47  45.8N   76.4W MB=1.6  ECAN Shawville, QC                  

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 AAAAA  New York State             

 

HAWAII

 

O: 12JUL2021 23:42:03  18.0N  154.1W ML=3.1  EMSC   HAWAIIAN ISLANDS REGION      

P:  5JUL2021 135176    18.9N  155.1W 3.0-4.6 CAAAA  Hawaii                     

 

MODERATE QUAKE SHAKES ADAK, ANDREANOF ISLANDS, ALASKA

 

EARTHQUAKE SUMMARY FOR JULY 11, 2021

 

The largest earthquake in the U.S. or Canada today (or in the world) was an M 4.9 in the central Andreanof Islands, Alaska. NEIC reported it was felt with intensity IV at Adak, Alaska. This follows a smaller M 4.7 on July 9 and is the strongest event in the Andreanof Islands since an M 5.1 on May 22, 2021 about 200 km to the east of today's epicenter. The last event within about 200 km of today's epicenter and the only such event in the past year was an M 5.2 on October 1, 2020. Forecast 135318 had expected today's event within about 50 km was likely around July 7.

 

O: 11JUL2021 17:04:37  51.8N  176.0W Mw=4.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P:  7JUL2021 135318    51.7N  175.3W 3.5-5.2 BAAAA  Andreanoff Isls, Aleutians 

 

 

 

Aftershocks also continued in the area of Central California near the Nevada border. The larger of these were lightly felt in the epicentral area. Following are event of M>2.5 in the area today. A more extensive listing can be found in the "California" regional forecast later in this summary. Forecast 135217 and 135218 had expected this activity was likely within about 25 km of these epicenters in early July.

 

 

O: 11JUL2021 09:39:04  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 12:35:42  38.5N  119.5W ML=3.1  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 18:56:29  38.5N  119.4W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 18:56:29  38.5N  119.4W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 19:06:53  38.5N  119.5W ml=2.9  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 21:52:21  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 04:36:33  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 02:04:36  38.6N  119.4W MD=3.0  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 07:37:05  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA           

P:  8JUL2021 135218    39.3N  120.0W 2.5-4.4 BAAAA  California/Nevada area     

 

The strong swarm in northern Baja California, Mexico also continued today. The strongest of these events in the past two days has not exceeded M 4.0 and these events are not being reported felt in the area. Forecasts 135198 and 135251 had expected this activity was likely in early July within about 50 km.

 

O: 11JUL2021 19:24:32  31.0N  115.5W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 20:08:35  31.0N  115.2W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 07:41:02  31.2N  115.3W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 14:13:53  31.4N  115.5W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 14:13:53  31.4N  115.5W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12JUL2021 05:31:20  31.4N  115.5W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 14:10:57  31.0N  115.0W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

P:  5JUL2021 135198    30.0N  114.0W 3.5-5.3 CAAAA  Gulf of California         

P:  7JUL2021 135251    31.8N  115.6W 2.5-4.4 BAAAA  So. California             

 

An M 4.4 also occurred today in the Strait of Gibraltar. This area has been active in recent months but has produced no damage. The only event in the region in the past year, however, of M>=4.4 was an M 4.7 on June 19, 2021. Forecast

135234 had expected today's event to the north was likely around July 8.

 

O: 11JUL2021 11:40:00  35.2N    3.7W mb=4.4  EMSC   STRAIT OF GIBRALTAR          

P:  8JUL2021 135234    37.0N    3.0W 3.5-5.2 BAAAA  Morocco/Spain              

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: 11JUL2021 19:33:27  35.6N   58.3E ML=4.0  EMSC   NORTHEASTERN IRAN            

P: 11JUL2021 135239    37.0N   59.0E 3.8-5.2 ABAAA  No. Iran                   

 

O: 12JUL2021 03:20:07  38.9N   70.8E mb=4.3  EMSC   TAJIKISTAN                   

P: 11JUL2021 135230    39.0N   72.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O: 11JUL2021 17:32:44  48.0N   83.6E mb=4.5  EMSC   KAZAKHSTAN-XINJIANG BORDER REG

P: 11JUL2021 135333    50.0N   88.0E 3.0-4.4 ABCAA  So. Siberia                

 

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

 

INDONESIA AND PHILIPPINES

 

O: 11JUL2021 16:07:33   2.9N  126.6E mb=4.6  EMSC   MOLUCCA SEA                  

O: 12JUL2021 00:02:48   3.3N  127.9E mb=4.6  EMSC   KEPULAUAN TALAUD, INDONESIA  

P:  7JUL2021 135136     4.0N  127.0E 4.0-5.4 BAAAA  Halmahera                  

 

O: 12JUL2021 06:30:38   6.2S  106.1E mb=4.7  EMSC   JAVA, INDONESIA              

P: 10JUL2021 135156     6.0S  113.0E 4.0-5.6 AACAA  So. of Bali                

 

O: 12JUL2021 06:04:31   7.7N  124.9E ML=4.0  EMSC   MINDANAO, PHILIPPINES        

P:  7JUL2021 135131     8.0N  125.0E 4.0-5.6 BAAAA  Central Philippines        

 

O: 11JUL2021 17:07:18   8.8N  126.5E ML=4.2  EMSC   MINDANAO, PHILIPPINES        

P:  8JUL2021 135136     9.0N  127.0E 4.0-5.4 BAAAA  Halmahera                  

 

 

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

 

CENTRAL AND SOUTH AMERICA

 

O: 11JUL2021 23:12     25.8S   70.3W mb=4.4  GUC    Atacama at Diego de Almagro; E

P:  4JUL2021 135366    26.0S   71.0W 4.0-5.6 CAAAA  Coast Central Chile        

 

GUC reported this earthquake was felt with intensity IV in  Atacama at Diego de Almagro; El Salvador, Chanaral, III in Copiapo and Tierra Amarilla, Chile.

 

O: 11JUL2021 17:40:49   7.5S   74.5W mb=4.1  EMSC   NORTHERN PERU                

O: 11JUL2021 09:32:10   8.1S   74.5W mb=4.3  EMSC   CENTRAL PERU                 

P:  7JUL2021 135143     8.0S   74.0W 3.5-5.1 BAAAA  Brazil                     

 

O: 11JUL2021 10:56:30  10.2N   84.3W ML=4.2  EMSC   COSTA RICA                   

P:  5JUL2021 135167    10.0N   84.0W 3.5-5.2 CAAAA  Caribbean Sea              

 

O: 11JUL2021 21:09:55  12.0S   76.6W ML=4.0  EMSC   NEAR COAST OF CENTRAL PERU   

P: 11JUL2021 135351    10.0S   75.0W 3.5-5.3 ABBAA  Brazil                     

 

O: 12JUL2021 05:13:09  13.9N   92.2W mb=4.1  EMSC   OFFSHORE GUATEMALA           

P:  7JUL2021 135174    14.0N   92.0W 3.5-5.5 BAAAA  Guatemala                  

 

O: 11JUL2021 14:46:29  15.7S   71.5W Mw=5.0  EMSC   SOUTHERN PERU                

P: 11JUL2021 135352    15.0S   71.0W 4.0-5.4 AAAAA  Central Peru               

 

O: 11JUL2021 09:36:07  18.2N   67.1W Md=3.4  EMSC   PUERTO RICO                  

P: 10JUL2021 135187    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 12JUL2021 06:45:02  18.7N   70.4W ML=3.1  EMSC   DOMINICAN REPUBLIC           

O: 11JUL2021 12:24:49  19.2N   69.5W ML=3.0  EMSC   DOMINICAN REPUBLIC

P:  9JUL2021 135189    20.0N   71.0W 3.4-5.3 BBAAA  Puerto Rico                

 

O: 11JUL2021 11:12:03  19.4N   68.3W ML=3.0  EMSC   DOMINICAN REPUBLIC REGION    

P: 10JUL2021 135188    19.0N   68.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 12JUL2021 01:13:47  20.0N   75.6W ML=3.6  EMSC   CUBA REGION                  

P:  9JUL2021 135189    20.0N   71.0W 3.4-5.3 BACAA  Puerto Rico                

 

NEIC reported this earthquake of M 3.6 in Cuba was felt with intensity II-III in the area(s) of Cuba in Guantanamo.

 

O: 11JUL2021 13:53:22  25.3N  109.6W ML=3.7  EMSC   GULF OF CALIFORNIA           

P:  8JUL2021 135197    24.0N  109.0W 3.5-5.2 BBAAA  Gulf of California         

 

O: 11JUL2021 23:12:59  25.8S   70.3W mb=4.2  EMSC   ANTOFAGASTA, CHILE           

P:  4JUL2021 135366    26.0S   71.0W 4.0-5.6 CAAAA  Coast Central Chile        

 

O: 11JUL2021 15:54:57  30.8N  114.4W ML=3.3  EMSC   GULF OF CALIFORNIA           

P:  5JUL2021 135198    30.0N  114.0W 3.5-5.3 CAAAA  Gulf of California         

 

O: 11JUL2021 18:09:03  31.9S   69.8W ML=3.0  EMSC   SAN JUAN, ARGENTINA          

P:  6JUL2021 135381    32.0S   69.0W 4.0-5.6 BAAAA  Central Chile              

 

 

AFRICA AND EUROPE

 

O: 11JUL2021 11:40:00  35.2N    3.7W mb=4.4  EMSC   STRAIT OF GIBRALTAR          

P:  8JUL2021 135234    37.0N    3.0W 3.5-5.2 BAAAA  Morocco/Spain              

 

O: 11JUL2021 18:16:51  43.3N   46.0E mb=4.0  EMSC   CAUCASUS REGION, RUSSIA      

P:  8JUL2021 135277    43.0N   44.0E 3.5-5.2 BABAA  Caucasus/Caspian Sea       

 

O: 11JUL2021 10:56:21  44.5N   12.8E mb=4.2  EMSC   NORTHERN ITALY               

P:  8JUL2021 135275    46.0N   11.0E 3.0-5.6 BBBAA  Austria                    

 

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

 

SOUTHWEST PACIFIC

 

O: 11JUL2021 10:24:29  15.8S  173.4W mb=4.7  EMSC   TONGA                        

P:  8JUL2021 135362    16.0S  174.0W 4.0-5.6 BAAAA  Tonga Islands              

 

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

 

OCEAN RIDGES

 

O: 12JUL2021 01:28:03   5.1S   68.5E mb=4.8  EMSC   CHAGOS ARCHIPELAGO REGION    

P:  6JUL2021 135148     1.0S   70.0E 4.0-5.4 CCBAA  Indian Ocean               

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O: 11JUL2021 21:07:22  46.6N  151.6E mb=4.7  EMSC   KURIL ISLANDS                

P:  5JUL2021 135306    45.0N  152.0E 3.5-5.7 CBAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 11JUL2021 19:24:32  31.0N  115.5W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 20:08:35  31.0N  115.2W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 07:41:02  31.2N  115.3W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 14:13:53  31.4N  115.5W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 14:13:53  31.4N  115.5W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 12JUL2021 05:31:20  31.4N  115.5W ML=3.1  EMSC   BAJA CALIFORNIA, MEXICO

O: 11JUL2021 14:10:57  31.0N  115.0W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO      

P:  5JUL2021 135198    30.0N  114.0W 3.5-5.3 CAAAA  Gulf of California         

P:  7JUL2021 135251    31.8N  115.6W 2.5-4.4 BAAAA  So. California             

 

O: 11JUL2021 22:43:47  35.7N  117.5W ML=2.5  EMSC   SOUTHERN CALIFORNIA          

O: 11JUL2021 12:10:29  36.0N  117.7W Ml=2.4  EMSC   CENTRAL CALIFORNIA           

P: 10JUL2021 135261    35.7N  118.1W 2.5-4.7 AAAAA  So. California             

 

O: 11JUL2021 17:37:46  36.9N  121.4W ML=2.5  EMSC   CENTRAL CALIFORNIA           

O: 12JUL2021 06:05:55  36.9N  121.4W Md=2.2  EMSC   CENTRAL CALIFORNIA           

P:  6JUL2021 135220    36.7N  121.4W 2.5-4.6 CAAAA  Central California         

 

NEIC reported this earthquake of M 2.7 in Central California was felt with intensity II-III in the area(s) of Central California at San Juan Bautista, Hollister, Los Banos, San Francisco and Fresno.

 

O: 12JUL2021 04:21:17  37.4N  121.1W Md=2.1  EMSC   NORTHERN CALIFORNIA          

O: 11JUL2021 10:42:27  37.9N  122.3W Md=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P:  8JUL2021 135221    37.8N  122.6W 2.5-4.6 BAAAA  Central California         

 

O: 12JUL2021 01:05:27  38.2N  117.9W ml=2.0  EMSC   NEVADA                       

P: 10JUL2021 135216    37.8N  118.2W 2.5-4.9 AAAAA  California/Nevada area     

 

 

O: 11JUL2021 08:50:16  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 09:19:22  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 09:26:56  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 09:39:04  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 09:57:44  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 12:35:42  38.5N  119.5W ML=3.1  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 13:43:32  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 17:53:18  38.5N  119.5W Md=2.3  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 18:52:04  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 18:56:29  38.5N  119.4W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 18:56:29  38.5N  119.4W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 19:06:53  38.5N  119.5W ml=2.9  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 19:14:15  38.5N  119.6W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 21:02:03  38.5N  119.6W ml=2.2  EMSC   NORTHERN CALIFORNIA

O: 11JUL2021 21:52:21  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 22:05:17  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 00:43:35  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 04:36:33  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 06:45:47  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 08:03:14  38.6N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 08:39:58  38.6N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 13:55:14  38.6N  119.5W Md=2.3  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 02:04:36  38.6N  119.4W MD=3.0  EMSC   CENTRAL CALIFORNIA

O: 12JUL2021 04:42:41  38.6N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 07:37:05  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA           

P:  8JUL2021 135218    39.3N  120.0W 2.5-4.4 BAAAA  California/Nevada area     

 

O: 12JUL2021 05:28:12  38.8N  122.7W Md=2.5  EMSC   NORTHERN CALIFORNIA

O: 12JUL2021 00:04:04  38.8N  122.8W Md=2.1  EMSC   NORTHERN CALIFORNIA          

P:  9JUL2021 135222    38.7N  122.7W 2.5-4.4 BAAAA  Central California         

 

NEIC reported this earthquake of M 2.5 in the Geysers, California was felt with intensity II-III in the area(s) of the Geysers, California at Kelseyville.

 

O: 11JUL2021 12:59:34  40.5N  125.6W ML=3.2  EMSC   OFFSHORE NORTHERN CALIFORNIA

O: 12JUL2021 03:43:27  40.4N  125.4W ML=3.3  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 10JUL2021 135295    40.5N  125.8W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

NEIC reported this earthquake of M 3.4 off the coast of Northern California  was felt with intensity II-III in the area(s) of Northern California in Ferndale, Petrolia, Fortuna, Whitethorn.

 

ALASKA

 

O: 11JUL2021 17:04:37  51.8N  176.0W Mw=4.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P:  7JUL2021 135318    51.7N  175.3W 3.5-5.2 BAAAA  Andreanoff Isls, Aleutians 

 

O: 11JUL2021 10:54:51  56.1N  149.2W ML=3.6  EMSC   GULF OF ALASKA               

 

O: 11JUL2021 20:24:47  57.7N  157.9W ml=3.2  EMSC   ALASKA PENINSULA             

P:  6JUL2021 135315    56.8N  158.7W 3.5-5.2 BAAAA  Alaska Peninsula           

 

O: 11JUL2021 20:37:16  62.2N  150.5W ml=4.0  EMSC   CENTRAL ALASKA               

P:  7JUL2021 135340    63.0N  151.5W 3.2-4.9 BAAAA  Central Alaska             

 

NEIC reported this earthquake of M 4.0 in Central Alaska was felt with intensity II-III in the area(s) of Central Alaska at Talkeetna, Matanuska-Sustina Border, Willow, Wasilla, Chugiak, Anchorage.

 

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: 11JUL2021 22:39:12  46.1N  111.7W Ml=2.3  EMSC   WESTERN MONTANA              

P: 10JUL2021 135287    44.5N  112.6W 2.0-3.9 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 11JUL2021 20:47:08  35.8N   84.0W Md=2.0  EMSC   EASTERN TENNESSEE

O: 11JUL2021 11:36:11  35.9N   84.4W Md=2.1  EMSC   EASTERN TENNESSEE

O: 11JUL2021 20:21:58  35.8N   84.0W Md=2.3  EMSC   EASTERN TENNESSEE            

P:  8JUL2021 135265    34.0N   85.0W 2.0-3.9 BBAAA  Southeast U.S.              

 

O: 11JUL2021 12:21:15  51.8N   92.0W MB=2.1  ECAN Pickle Lake, ON                

 

O: 10JUL2021 00:41:53  45.4N   77.4W MB=1.8  ECAN Barry's Bay, ON                

O:  9JUL2021 05:36:47  45.8N   76.4W MB=1.6  ECAN Shawville, QC                  

O:  9JUL2021 02:31:13  47.1N   76.3W MB=1.8  ECAN Ferme-Neuve, QC                

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 AAAAA  New York State             

 

HAWAII

 

O: 12JUL2021 04:50:45  19.3N  155.4W ML=3.7  EMSC   ISLAND OF HAWAII, HAWAII     

P: 10JUL2021 135199    20.3N  155.1W 4.0-5.9 AAAAA  Hawaii area                

 

NEIC reported this earthquake of M 3.1 in Hawaii was felt with intensity II-III in the area(s) of Hawaii at Hawaii National Park, Pahala, Volcano, Naalehu, Pahoa, Captain Cook, Hilo, Papaikou, Laupahoehoe and Kailua Kona.

 

MODERATE QUAKE IN RAT ISLANDS TIDALLY TRIGGERED

 

EARTHQUAKE SUMMARY FOR JULY 10, 2021

 

The strongest earthquake in the world today was an M 5.5 in the Rat Islands in the western Aleutian Islands. It was not reported felt in this remote area.

It was preceded by an M 5.0 foreshock. This activity began within several minutes of local solar noon and was probably triggered by high tidal stresses with the new moon which maximized near this hour. The tidal seismicity forecast in this and previous summaries for this new moon reads:

 

"The new moon will arrive on July 10, 2021 at 01:17 UT. Longitudes which are anti-solar at this time area near 20 West and those which are sub-solar (local solar noon) are near 160 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the Solomon and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (July 8-10, 2021)

 

Today’s event is the strongest within about 200 km of this epicenter since an M 6.4 on April 2, 2019 and prior to that an M 6.6 on October 8, 2017. Forecast 135331 had expected this activity was likely in early July within about 25 km of today's epicenters.

 

O: 11JUL2021 02:11:37  52.2N  177.4E Mw=5.4  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

O: 11JUL2021 00:08:01  52.3N  177.3E Mw=5.1  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

O: 10JUL2021 20:42:55  52.1N  177.2E mb=4.3  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P:  5JUL2021 135331    52.0N  177.0E 4.0-5.8 BAAAA  Rat Islands                

 

Aftershocks also continued in the area of Central California near the Nevada border. The larger of these were lightly felt in the epicentral area. Following are event of M>2.5 in the area today. A more extensive listing can be found in the "California" regional forecast later in this summary. Forecast 135217 had expected this activity was likely within about 25 km of these epicenters in early July.

 

O: 10JUL2021 10:15:55  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 15:42:14  38.5N  119.5W ml=2.6  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 19:45:04  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 20:18:11  38.5N  119.6W Md=2.6  EMSC   NORTHERN CALIFORNIA

O: 10JUL2021 22:25:05  38.5N  119.6W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 23:13:51  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 00:58:19  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 01:27:47  38.5N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 06:09:03  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 04:23:21  38.6N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 04:23:21  38.6N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA           

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 BAAAA  California/Nevada 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: 11JUL2021 03:03:17  19.7N   77.8E ML=4.4  EMSC   MAHARASHTRA, INDIA           

P: 11JUL2021 135166    17.0N   74.0E 3.5-5.0 ACCAA  Arabian Sea                

 

O: 11JUL2021 01:38:42  30.7N   49.8E ML=4.3  EMSC   WESTERN IRAN                 

P:  8JUL2021 135263    31.0N   51.0E 3.8-5.4 BAAAA  So. Iran                   

 

O: 10JUL2021 15:22:41  38.9N   70.4E mb=4.6  EMSC   TAJIKISTAN                   

O: 11JUL2021 01:34:50  39.0N   70.7E mb=4.4  EMSC   TAJIKISTAN                   

O: 10JUL2021 16:05:16  40.8N   72.8E mb=4.7  EMSC   EASTERN UZBEKISTAN           

P: 11JUL2021 135230    39.0N   72.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

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

 

INDONESIA AND PHILIPPINES

 

 

O: 11JUL2021 02:16:31   0.0S  123.3E mb=4.6  EMSC   SULAWESI, INDONESIA          

O: 10JUL2021 17:59:04   0.8N  120.5E ML=4.2  EMSC   MINAHASA, SULAWESI, INDONESIA

O: 10JUL2021 07:57:56   0.9S  119.8E ML=4.4  EMSC   MINAHASA, SULAWESI, INDONESIA

O: 11JUL2021 04:07:40   0.0N  123.6E ML=4.0  EMSC   MINAHASA, SULAWESI, INDONESIA

O: 10JUL2021 11:49:59   0.6N  123.6E ML=4.3  EMSC   MINAHASA, SULAWESI, INDONESIA

P:  6JUL2021 135160     2.0S  123.0E 4.0-5.4 BBCAA  Sulawesi area              

 

O: 10JUL2021 08:05:25   1.5S  139.3E ML=4.2  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 11JUL2021 135163     3.0S  138.0E 4.0-5.4 ABAAA  West Irian, PNG            

 

O: 10JUL2021 08:11:36   2.5N  128.5E ML=4.2  EMSC   HALMAHERA, INDONESIA         

O: 10JUL2021 10:06:30   2.9N  126.6E mb=4.8  EMSC   MOLUCCA SEA                  

O: 10JUL2021 10:04:51   3.0N  126.8E ML=4.7  EMSC   KEPULAUAN TALAUD, INDONESIA  

O: 11JUL2021 04:24:43   4.9N  126.2E ML=4.7  EMSC   KEPULAUAN TALAUD, INDONESIA

P:  7JUL2021 135136     4.0N  127.0E 4.0-5.4 BAAAA  Halmahera                  

 

O: 10JUL2021 18:45:19   6.4N  124.1E mb=4.9  EMSC   MINDANAO, PHILIPPINES        

P:  7JUL2021 135131     8.0N  125.0E 4.0-5.6 BBAAA  Central Philippines        

 

NEIC reported this earthquake of M 4.9 in Mindanao, Philippines was felt with intensity II-III in the area(s) of Mindanao, Philippines at Guinsang-an and Zamboanga.

 

O: 11JUL2021 02:04:58  18.4N  145.4E mb=4.2  EMSC   PAGAN REG., N. MARIANA ISLANDS

P:  8JUL2021 135210    22.0N  143.0E 4.0-5.5 BCBAA  Volcano Islands            

 

CENTRAL AND SOUTH AMERICA

 

O: 10JUL2021 16:48:32   1.2S   81.0W ML=4.8  EMSC   NEAR COAST OF ECUADOR        

P:  5JUL2021 135146     1.0S   81.0W 4.0-5.5 BAAAA  Ecuador                    

 

O: 10JUL2021 20:53:30   9.6N   85.0W ML=4.0  EMSC   OFF COAST OF COSTA RICA      

P:  6JUL2021 135134     9.0N   84.0W 3.5-5.0 BAAAA  Costa Rica                  

 

O: 10JUL2021 10:52:06  12.6N   59.4W mb=4.5  EMSC   BARBADOS REGION, WINDWARD ISL.

P:  7JUL2021 135192    11.0N   62.0W 3.4-5.2 BBBAA  Windward Islands           

P: 10JUL2021 135177    15.0N   61.0W 3.0-5.3 ACBAA  Leeward Islands             

 

O: 11JUL2021 04:52:23  13.3N   89.8W mb=4.1  EMSC   OFFSHORE EL SALVADOR         

P: 11JUL2021 135173    14.0N   90.0W 3.5-5.5 AAAAA  Guatemala                  

 

O: 10JUL2021 13:19:44  17.9N   95.2W ML=4.1  EMSC   VERACRUZ, MEXICO             

P:  7JUL2021 135170    17.0N   95.0W 3.5-5.1 BAAAA  Chiapas, Mexico            

 

O: 11JUL2021 05:48:00  18.7N  106.7W ML=4.1  EMSC   OFF COAST OF JALISCO, MEXICO 

P:  4JUL2021 135172    19.0N  107.0W 3.5-5.2 CAAAA  Coast of Jalisco, Mexico   

 

O: 11JUL2021 01:17:48  24.3S   67.3W mb=4.3  EMSC   SALTA, ARGENTINA             

P:  8JUL2021 135365    22.0S   67.0W 4.0-5.6 BCAAA  Argentina                  

 

O: 10JUL2021 19:05:43  21.1N  106.1W ML=3.6  EMSC   OFFSHORE NAYARIT, MEXICO     

P:  4JUL2021 135172    19.0N  107.0W 3.5-5.2 CBAAA  Coast of Jalisco, Mexico   

P:  8JUL2021 135197    24.0N  109.0W 3.5-5.2 ACCAA  Gulf of California         

 

 

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

 

AFRICA AND EUROPE

 

O: 11JUL2021 00:00:16  38.3N   23.3E mb=4.6  EMSC   GREECE                       

P: 10JUL2021 135211    39.0N   23.0E 3.0-4.6 AAAAA  Aegean Sea                 

 

NEIC reported this earthquake of M 4.6 in Greece was felt with intensity II-III in the area(s) of Greece at Thivai, Khakis, Villa, Tragana, Kipsell, Athens, Moskhaion, Arirouipol, and Voila.

 

O: 11JUL2021 05:14:59  43.6N   45.1E mb=4.0  EMSC   CAUCASUS REGION, RUSSIA      

P:  8JUL2021 135277    43.0N   44.0E 3.5-5.2 BAAAA  Caucasus/Caspian Sea       

 

O: 10JUL2021 14:43:22  38.8N   26.1E mb=4.5  EMSC   NEAR THE COAST OF WESTERN TURK

O: 10JUL2021 19:19:17  39.0N   26.0E mb=4.0  EMSC   NEAR THE COAST OF WESTERN TURK

P: 10JUL2021 135211    39.0N   23.0E 3.0-4.6 AABAA  Aegean Sea                  

 

NEIC reported this earthquake of M 4.4 near western Turkey  was felt with intensity II-III in the area(s) of western Turkey at Karaburun, Izmir.

 

O: 10JUL2021 21:53:26  40.1N   34.5E mb=4.0  EMSC   CENTRAL TURKEY               

P:  8JUL2021 135293    41.0N   36.0E 3.5-5.0 AABAA  No. Turkey/Black Sea       

 

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

 

SOUTHWEST PACIFIC

 

O: 10JUL2021 14:39:57  22.1S  171.0E mb=4.9  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P:  6JUL2021 135369    22.0S  172.0E 4.0-5.5 BAAAA  Loyalty Islands            

 

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

 

OCEAN RIDGES

 

O: 10JUL2021 17:31:21  44.3N   28.2W mb=4.4  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P:  9JUL2021 135292    42.0N   29.0W 4.0-5.8 ACAAA  No. Mid-Atlantic Ridge     

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O: 11JUL2021 02:34:10  28.0N  128.1E mb=4.5  EMSC   RYUKYU ISLANDS, JAPAN

O: 10JUL2021 18:49:16  27.9N  128.2E mb=4.5  EMSC   RYUKYU ISLANDS, JAPAN        

P:  4JUL2021 135201    27.0N  130.0E 4.0-5.6 CABAA  Kyushu Japan               

 

O: 11JUL2021 00:16:30  37.5N  137.3E ML=4.0  EMSC   NEAR WEST COAST OF HONSHU, JAP

P:  6JUL2021 135238    37.0N  135.0E 3.5-5.1 BABAA  No. Honshu, Japan          

 

O: 10JUL2021 08:53:37  46.5N  152.8E mb=4.0  EMSC   KURIL ISLANDS                

P:  4JUL2021 135308    47.0N  151.0E 3.5-5.4 CAAAA  So. Kurils                 

 

O: 10JUL2021 10:57:20  46.7N  153.4E mb=4.2  EMSC   KURIL ISLANDS                

P:  5JUL2021 135306    45.0N  152.0E 3.5-5.7 BBAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 10JUL2021 09:34:05  30.6N  115.0W ML=3.6  EMSC   BAJA CALIFORNIA, MEXICO      

O: 10JUL2021 09:25:06  30.2N  114.2W ML=3.7  EMSC   GULF OF CALIFORNIA

O: 10JUL2021 09:32:09  30.2N  114.3W ML=3.6  EMSC   GULF OF CALIFORNIA

P:  5JUL2021 135198    30.0N  114.0W 3.5-5.3 BAAAA  Gulf of California         

 

O: 11JUL2021 01:14:45  33.3N  116.8W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 11JUL2021 135253    33.4N  116.7W 2.5-4.9 AAAAA  So. California             

 

O: 11JUL2021 04:20:51  36.1N  117.9W Ml=2.5  EMSC   CENTRAL CALIFORNIA           

P: 10JUL2021 135261    35.7N  118.1W 2.5-4.7 AAAAA  So. California             

 

O: 10JUL2021 07:35:54  36.2N  121.7W Md=2.4  EMSC   CENTRAL CALIFORNIA           

P: 10JUL2021 135219    36.2N  121.8W 2.5-4.6 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.7 in Central California was felt with intensity II-III in the area(s) of Central California at San Juan Bautista, Los Banos and Oakley.

 

O: 11JUL2021 03:37:18  36.5N  118.0W Ml=2.1  EMSC   CENTRAL CALIFORNIA           

P:  6JUL2021 135213    36.5N  117.7W 2.5-4.6 BAAAA  California/Nevada area     

 

O: 10JUL2021 23:51:53  36.7N  121.4W Md=2.6  EMSC   CENTRAL CALIFORNIA           

P:  6JUL2021 135220    36.7N  121.4W 2.5-4.6 BAAAA  Central California         

 

NEIC reported this earthquake of M 2.6 in Central California was felt with intensity II-III in the area(s) of Central California at San Juan Bautista, Los Banos and Ben Lomond.

 

O: 11JUL2021 03:03:13  37.5N  116.6W ml=2.4  EMSC   NEVADA                       

P: 11JUL2021 135215    37.8N  115.8W 2.5-4.7 AAAAA  California/Nevada area     

 

O: 10JUL2021 14:05:12  38.2N  117.8W ML=3.3  EMSC   NEVADA

O: 10JUL2021 14:05:12  38.2N  117.8W ML=3.6  ANSS   NEVADA

O: 10JUL2021 18:51:19  38.2N  117.8W ml=2.1  EMSC   NEVADA                       

P: 10JUL2021 135216    37.8N  118.2W 2.5-4.9 AAAAA  California/Nevada area     

 

NEIC reported this earthquake of M 3.6 near Mina, Nevada  was felt with intensity II-III in the area(s) of Nevada at Wells and Glenbrook.

 

O: 11JUL2021 06:13:10  38.8N  122.8W Md=2.4  EMSC   NORTHERN CALIFORNIA          

O: 10JUL2021 10:02:15  38.8N  122.8W Md=2.3  EMSC   NORTHERN CALIFORNIA

O: 10JUL2021 10:52:29  38.8N  122.8W Md=2.1  EMSC   NORTHERN CALIFORNIA

P:  9JUL2021 135222    38.7N  122.7W 2.5-4.4 AAAAA  Central California         

 

O: 10JUL2021 08:59:08  39.7N  123.6W Md=2.4  EMSC   NORTHERN CALIFORNIA          

P:  9JUL2021 135223    39.3N  123.2W 2.5-4.4 AAAAA  Central California         

 

O: 10JUL2021 10:31:54  40.3N  124.9W ML=2.7  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P:  9JUL2021 135295    40.7N  124.6W 2.5-4.5 AAAAA  Off Coast of No. Calif     

 

 

O: 10JUL2021 11:10:19  38.4N  119.4W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 07:10:14  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 07:43:21  38.5N  119.6W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 07:51:45  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 10:15:55  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 10:30:32  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 10:32:41  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 11:01:24  38.5N  119.4W ml=2.5  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 11:43:13  38.5N  119.4W ml=2.5  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 12:36:14  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 13:10:45  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 13:14:43  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 15:42:14  38.5N  119.5W ml=2.6  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 16:20:28  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 16:27:35  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 16:46:52  38.5N  119.4W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 16:50:29  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 16:52:47  38.5N  119.6W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 17:04:43  38.5N  119.6W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 17:06:16  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 17:14:42  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 18:44:26  38.5N  119.6W ml=2.4  EMSC   NORTHERN CALIFORNIA

O: 10JUL2021 18:53:58  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 19:07:08  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 19:10:46  38.5N  119.6W ml=2.1  EMSC   NORTHERN CALIFORNIA

O: 10JUL2021 19:34:08  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 19:45:04  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 20:18:11  38.5N  119.6W Md=2.6  EMSC   NORTHERN CALIFORNIA

O: 10JUL2021 22:25:05  38.5N  119.6W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 23:13:51  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 00:55:54  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 00:58:19  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 01:11:22  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 01:27:47  38.5N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 02:01:00  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 02:07:25  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 02:11:35  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 05:04:54  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 06:09:03  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 06:22:24  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 11:15:15  38.6N  119.6W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 15:51:53  38.6N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 21:26:48  38.6N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 03:12:36  38.6N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 11JUL2021 04:23:21  38.6N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 08:55:45  38.4N  118.5W ml=2.4  EMSC   NEVADA                       

O: 11JUL2021 04:23:21  38.6N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA           

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 BAAAA  California/Nevada area     

 

 

ALASKA

 

O: 11JUL2021 02:11:37  52.2N  177.4E Mw=5.4  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

O: 11JUL2021 00:08:01  52.3N  177.3E Mw=5.1  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

O: 10JUL2021 20:42:55  52.1N  177.2E mb=4.3  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P:  5JUL2021 135331    52.0N  177.0E 4.0-5.8 BAAAA  Rat Islands                

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 10JUL2021 20:42:29  43.1N  126.6W mb=4.1  EMSC   OFF COAST OF OREGON          

P: 11JUL2021 135296    42.5N  126.8W 3.0-4.4 AAAAA  Off Coast of Oregon        

 

NEIC reported this earthquake of M 4.1 off the coast of Oregon  was felt with intensity II-III in the area(s) of Oregon at Medford, Salem and in Yreka, California.

 

O: 10JUL2021 09:47:54  46.6N  122.4W Ml=2.1  EMSC   WASHINGTON                   

P: 11JUL2021 135311    48.9N  123.1W 2.0-4.1 ACAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 10JUL2021 17:55:44  31.7N  104.2W ML=2.8  EMSC   WESTERN TEXAS                

P:  9JUL2021 135247    31.6N  103.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

O: 10JUL2021 13:33:49  48.2N  107.8W ML=2.7  EMSC   EASTERN MONTANA               

P:  3JUL2021 135314    46.4N  111.4W 2.0-4.3 CBCAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 10JUL2021 07:33:46  35.1N   95.4W ML=2.1  EMSC   OKLAHOMA                     

P: 10JUL2021 135268    35.0N   97.0W 2.0-3.9 AABAA  Southern Plains            

 

O: 10JUL2021 15:10:30  36.7N   98.5W ML=2.1  EMSC   OKLAHOMA                     

P:  8JUL2021 135268    37.0N   97.0W 2.0-4.1 AABAA  Southern Plains            

 

O:  8JUL2021 08:55:23  40.5N   65.4W MB=2.4  ECAN Shelburne, NS                   

 

HAWAII

 

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

 

ENHANCED GLOBAL SEISMICIT?Y CONTINUES

 

EARTHQUAKE SUMMARY FOR JULY 9, 2021

 

Seismicity around the world continued today for the second straight day. Large or moderately large quakes were recorded in Sulawesi (M 5.6), Molucca (M  6.3, 5.5) and Tajikistan (M 5.9).  These events follow 4-5 days after the X1.5 solar flare of July 3. Seismicity is often seen to increase at this time following major solar flares, probably due to the time taken to significantly increase telluric and ionospheric electrical currents following such events. This delay has been discussed in this summary on several previous occasions. The activity today was mostly confined to southern and southeastern Asia. Tropical Storms 07W and 08W have made landfall in this area in the past several days and may have helped trigger these events. The earthquake in Molucca is near 104 degrees from the M 6.0 in Nevada two days ago. This is a distance at which triggering from strong earthquakes is likely, and probably was involved in today's events in Indonesia. The new moon which arrived today was also probably promotional in enhancing the global seismicity today. The tidal forecast for this alignment is provided in this summary as:

 

"The new moon will arrive on July 10, 2021 at 01:17 UT. Longitudes which are anti-solar at this time area near 20 West and those which are sub-solar (local solar noon) are near 160 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the Solomon and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and help promote strong to major earthquakes and such an event may be expected in the next week." (July 7-9, 2021)

 

The largest earthquake in the world today was an M 6.3 in the Molucca Sea south of the Talaud Islands, Indonesia. It was reported felt lightly in the epicentral area. The last earthquake of larger magnitude within about 200 km of this epicenter in the Molucca Sea was an M 7.1 on November 14, 2019. Forecast 135136 had expected today's activity within about 100 km was likely around July 7.

 

O: 10JUL2021 03:30:51   2.9N  126.7E mb=4.6  EMSC   MOLUCCA SEA

O: 10JUL2021 00:43:57   3.0N  126.6E Mw=6.3  EMSC   MOLUCCA SEA

O: 10JUL2021 00:51:09   3.0N  126.6E mb=5.5  EMSC   MOLUCCA SEA

O: 10JUL2021 01:10:36   3.0N  126.7E ML=4.0  EMSC   KEPULAUAN TALAUD, INDONESIA

O: 10JUL2021 02:20:22   3.0N  126.7E ML=4.4  EMSC   MOLUCCA SEA

O: 10JUL2021 02:30:57   3.0N  126.8E mb=4.6  EMSC   KEPULAUAN TALAUD, INDONESIA

O: 10JUL2021 01:18:07   3.1N  126.7E ML=4.1  EMSC   KEPULAUAN TALAUD, INDONESIA

O: 10JUL2021 00:58:13   2.9N  126.6E mb=5.0  EMSC   MOLUCCA SEA                  

P:  7JUL2021 135136     4.0N  127.0E 4.0-5.4 BBAAA  Halmahera                  

 

The strongest earthquake in the world today which was strongly felt was an M 5.8-5.9 in Tajikistan. NEIC reported it was felt with intensity VIII in Garm, Tajikistan and II in Dushanbe and in Tashkent, Uzbekistan. This is the strongest earthquake in Tajikistan since an M 6.1-6.3 on February 12, 2021 about 300 km southeast of today's epicenter. The last of stronger size within about 200 km was an M 6.0 on May 3, 2017 and prior to that an M 5.9 on May 12, 2012. Forecast 135230 had expected today's event within about 100 km was likely around July 11.

 

 

O: 10JUL2021 05:48:06  39.1N   70.6E mb=4.6  EMSC   TAJIKISTAN

O: 10JUL2021 06:07:00  39.1N   70.4E mb=4.3  EMSC   TAJIKISTAN

O: 10JUL2021 02:14:43  39.0N   70.7E mb=5.9  EMSC   TAJIKISTAN                   

P: 11JUL2021 135230    39.0N   72.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

An M 5.6 was also felt in Indonesia in the Sulawesi and Minahasa area. NEIC reported intensity II-III in Poso and Mobagu, Sulawesi and in Gorontalo, Indonesia. The last earthquake within about 200 km of this epicenter with M>=5.6 was an M 5.8 on February 22, 2021. Forecast 135137 had expected today's activity in this area was likely around July 10.

 

O:  9JUL2021 13:31:10   0.1N  123.7E Mw=5.6  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 10JUL2021 135137     1.0N  125.0E 4.0-5.4 AABAA  Mindanao, Philippines      

 

Aftershocks of the M 6.0 in western Nevada of July 7 continued today. The largest of these in magnitudes 3.5-4.0 were felt with intensity V in Sonora, California and II-III in Markleevile, Twain Harte, Davis, Los Banos. Forecast 135217 had expected this activity within about 25 km of these epicenters was likely around July 7. This activity was likely triggered by motions of the North American Plate by Hurricane Elsa which made landfall in western Florida simulteneously with the M 6.0 in Nevada/California. The last earthquake within  this area of Nevada within about 100 km of the M 6.0 epicenter occurred on September 12, 1994 about 50 km to the northwest of the recent M 6.0 with M 6.1.  Aftershocks of M>=3 follow. A more complete listing can be found in the "California" regional section below.

 

O: 09JUL2021 09:16:17  38.5N  119.5W ML=3.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:38:16  38.5N  119.5W ML=3.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:45:17  38.5N  119.5W ML=3.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 20:18:38  38.5N  119.5W MD=3.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 22:59:49  38.5N  119.5W ML=3.0  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 01:21:00  38.5N  119.6W ML=3.3  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 02:48:44  38.5N  119.5W ML=3.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:13:49  38.6N  119.5W Mw=3.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 11:49:18  38.6N  119.5W ml=3.2  EMSC   CENTRAL CALIFORNIA

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 AAAAA  California/Nevada area     

 

The strongest earthquake in the U.S. or Canada today was an M 4.7 in the central

Andreanof Islands, Alaska. It was not felt in this remote region. The only earthquake with equal or larger magnitude within about 150 km of this epicenter in the past year was an M 5.2 on October 1, 2020. Forecast 135318 had expected today's event within about 10 km was likely around July 7.

 

O:  9JUL2021 19:14:59  51.7N  175.3W mb=4.7  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P:  7JUL2021 135318    51.7N  175.3W 3.5-5.2 AAAAA  Andreanoff Isls, Aleutians 

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O:  9JUL2021 07:46:23  26.0N   90.4E mb=4.3  EMSC   MEGHALAYA, INDIA REGION      

P:  6JUL2021 135273    30.0N   90.0E 3.8-5.4 BCAAA  Xizang                      

 

NEIC reported this earthquake of M 4.3 in Assam, India was felt with intensity II-III in the area(s) of Assam, India at Bilaspara and Bongagaon and in Bogora, Bangladesh.

 

O:  9JUL2021 15:41:20  36.8N   45.4E mb=4.9  EMSC   IRAN-IRAQ BORDER REGION      

O: 09JUL2021 17:31:18  36.8N   45.2E mb=4.1  EMSC   IRAN-IRAQ BORDER REGION

P: 11JUL2021 135239    36.0N   46.0E 3.8-5.4 AAAAA  No. Iran                   

 

NEIC reported this earthquake of M 4.1 in Iran was felt with intensity II-III in the area(s) of  Baskale, Van, Turkey.

 

O: 10JUL2021 05:48:06  39.1N   70.6E mb=4.6  EMSC   TAJIKISTAN

O: 10JUL2021 06:07:00  39.1N   70.4E mb=4.3  EMSC   TAJIKISTAN

O: 10JUL2021 02:14:43  39.0N   70.7E mb=5.9  EMSC   TAJIKISTAN                   

P: 11JUL2021 135230    39.0N   72.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

 

INDONESIA AND PHILIPPINES

 

O:  9JUL2021 13:31:10   0.1N  123.7E Mw=5.6  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 10JUL2021 135137     1.0N  125.0E 4.0-5.4 AABAA  Mindanao, Philippines       

 

O: 10JUL2021 02:41:10   1.9N   97.0E mb=5.4  EMSC   NIAS REGION, INDONESIA

O: 10JUL2021 02:47:48   1.9N   97.2E ML=4.4  EMSC   NIAS REGION, INDONESIA

O: 10JUL2021 00:26:30   0.2N   96.5E ML=4.0  EMSC   NIAS REGION, INDONESIA       

O: 10JUL2021 03:01:04   1.7N   96.6E ML=4.1  EMSC   NIAS REGION, INDONESIA       

P: 11JUL2021 135139     2.0N   99.0E 4.0-5.5 AABAA  So. Sumatera               

 

O:  9JUL2021 12:55:26   2.6S   99.7E ML=4.1  EMSC   KEP. MENTAWAI REGION, INDONESI

P:  6JUL2021 135158     2.0S  100.0E 4.0-5.5 BAAAA  So. of Sumatera            

 

O: 10JUL2021 00:58:13   2.9N  126.6E mb=5.0  EMSC   MOLUCCA SEA                  

P:  7JUL2021 135136     4.0N  127.0E 4.0-5.4 BBAAA  Halmahera                  

 

O: 10JUL2021 03:38:18   5.2S  128.6E mb=4.5  EMSC   BANDA SEA                    

O:  9JUL2021 20:42:57   5.4S  127.2E ML=4.4  EMSC   BANDA SEA                    

P:  8JUL2021 135142     6.0S  128.0E 4.0-5.4 AAAAA  Banda Sea                  

 

O:  9JUL2021 20:37:02   6.2S  103.8E ML=4.0  EMSC   SOUTHWEST OF SUMATRA, INDONESI

P:  3JUL2021 135158     7.0S  104.0E 4.0-5.4 CAAAA  So. of Sumatera            

 

O:  9JUL2021 11:40:55   6.3S  150.2E Mw=5.1  EMSC   NEW BRITAIN REGION, P.N.G.   

P:  9JUL2021 135151     7.0S  150.0E 4.0-5.6 AAAAA  New Ireland                

 

NEIC reported this earthquake of M 5.1 in Kimbe, New Britain was felt with intensity II-III in the area(s) of Kimbe, New Britain in Papua New Guinea.

 

O:  9JUL2021 08:34:50   8.6N  123.3E mb=4.6  EMSC   MINDANAO, PHILIPPINES         

P:  7JUL2021 135131     8.0N  125.0E 4.0-5.6 AABAA  Central Philippines        

 

NEIC reported this earthquake of M 4.6 in Western Mindanao, Philippines  was felt with intensity II-III in the area(s) of  Western Mindanao, Philippines at Dipolog, Katipunan and Oroqueta.

 

 

O: 10JUL2021 03:30:51   2.9N  126.7E mb=4.6  EMSC   MOLUCCA SEA

O: 10JUL2021 00:43:57   3.0N  126.6E Mw=6.3  EMSC   MOLUCCA SEA

O: 10JUL2021 00:51:09   3.0N  126.6E mb=5.5  EMSC   MOLUCCA SEA

O: 10JUL2021 01:10:36   3.0N  126.7E ML=4.0  EMSC   KEPULAUAN TALAUD, INDONESIA

O: 10JUL2021 02:20:22   3.0N  126.7E ML=4.4  EMSC   MOLUCCA SEA

O: 10JUL2021 02:30:57   3.0N  126.8E mb=4.6  EMSC   KEPULAUAN TALAUD, INDONESIA

O: 10JUL2021 01:18:07   3.1N  126.7E ML=4.1  EMSC   KEPULAUAN TALAUD, INDONESIA

 

CENTRAL AND SOUTH AMERICA

 

O:  9JUL2021 21:51     25.8S   70.8W mb=4.6  GUC    Atacama at Diego de Almagro; I

P:  4JUL2021 135366    26.0S   71.0W 4.0-5.6 BAAAA  Coast Central Chile        

 

GUC reported this earthquake was felt with intensity  IV in  Atacama at Diego de Almagro; III in Chanaral, Copiapo and Tierra Amarilla, Chile.

 

O:  9JUL2021 16:07:01  12.7S   73.9W Mw=5.0  EMSC   CENTRAL PERU                 

P: 11JUL2021 135351    10.0S   75.0W 3.5-5.3 ACAAA  Brazil                     

 

NEIC reported this earthquake of M 5.0 in Central Peru was felt with intensity II-III in the area(s) of Central Peru at Ayna, Ayacucho and Arequipa.

 

O:  9JUL2021 08:43:31  15.1N   94.2W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO 

O: 10JUL2021 04:21:01  15.7N   96.2W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 10JUL2021 135170    15.0N   95.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O:  9JUL2021 07:08:09  16.0S   73.9W ML=4.0  EMSC   NEAR COAST OF SOUTHERN PERU  

P:  8JUL2021 135359    16.0S   74.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

O:  9JUL2021 21:07:34  17.0N   96.0W mb=4.8  EMSC   OAXACA, MEXICO               

P:  7JUL2021 135170    17.0N   95.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

NEIC reported this earthquake of M 4.8 in Oaxaca, Mexico was felt with intensity II-III in the area(s) of Oaxaca, Mexico.

 

O: 10JUL2021 04:02:33  19.7N   63.6W Md=4.0  EMSC   VIRGIN ISLANDS REGION        

P:  8JUL2021 135178    19.0N   64.0W 3.0-5.0 AAAAA  Leeward Islands            

 

O: 10JUL2021 02:28:58  21.4S   70.0W mb=4.1  EMSC   TARAPACA, CHILE              

P:  8JUL2021 135376    20.0S   71.0W 4.0-5.6 ABAAA  So. Peru/Bolivia           

 

O: 10JUL2021 00:06:46  22.9S   66.2W mb=4.5  EMSC   JUJUY, ARGENTINA             

P:  8JUL2021 135365    22.0S   67.0W 4.0-5.6 AAAAA  Argentina                  

 

O:  9JUL2021 21:51:41  25.7S   71.0W mb=4.6  EMSC   OFF COAST OF ANTOFAGASTA, CHIL

P:  4JUL2021 135366    26.0S   71.0W 4.0-5.6 BAAAA  Coast Central Chile        

 

O:  9JUL2021 23:10:48  37.3S   74.2W mb=4.4  EMSC   OFFSHORE BIO-BIO, CHILE      

P:  9JUL2021 135382    37.0S   74.0W 4.0-5.8 AAAAA  Central Chile              

 

NEIC reported this earthquake of M 4.4 in Bio-Bio Chile was felt with intensity II-III in the area(s) of Bio-Bio Chile at Lebu (V) and Arauco.

 

 

AFRICA AND EUROPE

 

O:  9JUL2021 21:10:50  36.0N    3.9W ML=3.4  EMSC   STRAIT OF GIBRALTAR          

P:  8JUL2021 135234    37.0N    3.0W 3.5-5.2 AAAAA  Morocco/Spain              

 

O:  9JUL2021 20:08:40  36.3N   23.2E mb=4.2  EMSC   SOUTHERN GREECE              

P:  6JUL2021 135237    37.0N   21.0E 3.0-4.8 BABAA  No. Greece                 

 

O:  9JUL2021 10:44:05  45.4N   16.3E ML=3.9  EMSC   CROATIA                      

P: 10JUL2021 135281    44.0N   16.0E 3.0-5.3 ABAAA  Italy                      

 

O:  9JUL2021 09:38:27  80.1N    0.3W mb=4.5  EMSC   NORTH OF SVALBARD            

 

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

 

SOUTHWEST PACIFIC

 

O:  9JUL2021 09:47:30  16.0S  173.2W mb=5.0  EMSC   TONGA                        

O:  9JUL2021 12:23:43  16.0S  177.7W mb=4.6  EMSC   FIJI REGION                  

P:  8JUL2021 135362    16.0S  174.0W 4.0-5.6 AAAAA  Tonga Islands              

 

O: 10JUL2021 05:20:37  25.3S  180.0E mb=4.0  EMSC   SOUTH OF FIJI ISLANDS        

P:  4JUL2021 135378    23.0S  179.0E 4.0-5.5 CCAAA  Tonga/Fiji                 

 

O:  9JUL2021 19:58:29  25.7S  176.9W mb=5.0  EMSC   SOUTH OF FIJI ISLANDS        

P:  8JUL2021 135378    27.0S  177.0W 4.0-5.5 ABAAA  Tonga Islands              

 

OCEAN RIDGES

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O: 09JUL2021 23:28:24  37.2N  143.8E mb=4.2  EMSC   OFF EAST COAST OF HONSHU, JAPAN

O:  9JUL2021 20:23:42  37.2N  143.8E Mw=5.3  EMSC   OFF EAST COAST OF HONSHU, JAPA

P:  7JUL2021 135264    38.0N  143.0E 4.0-5.4 AAAAA  So. of Honshu              

 

O:  9JUL2021 07:47:14  43.3N  144.3E mb=4.4  EMSC   HOKKAIDO, JAPAN REGION       

P:  7JUL2021 135280    43.0N  146.0E 3.5-5.6 AABAA  Hokkaido, Japan            

 

O: 10JUL2021 03:14:28  49.2N  155.5E mb=4.6  EMSC   KURIL ISLANDS                

P:  7JUL2021 135308    49.0N  153.0E 3.5-5.4 BABAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  9JUL2021 21:04:53  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA           

P:  8JUL2021 135221    37.8N  122.6W 2.5-4.6 AAAAA  Central California         

 

O:  9JUL2021 16:32:31  30.1N  114.0W ML=3.6  EMSC   GULF OF CALIFORNIA           

O: 09JUL2021 19:29:15  30.2N  114.1W ML=3.6  EMSC   GULF OF CALIFORNIA

P:  5JUL2021 135198    30.0N  114.0W 3.5-5.3 BAAAA  Gulf of California         

 

O: 09JUL2021 20:56:50  31.2N  115.4W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO

O: 09JUL2021 20:46:24  31.4N  115.5W ML=3.3  EMSC   BAJA CALIFORNIA, MEXICO

O: 09JUL2021 22:54:12  31.4N  115.7W Ml=2.3  EMSC   BAJA CALIFORNIA, MEXICO

O: 09JUL2021 17:51:46  31.6N  115.7W ML=3.5  EMSC   BAJA CALIFORNIA, MEXICO

O: 09JUL2021 20:15:00  31.6N  116.8W ML=3.3  EMSC   OFFSHORE BAJA CALIFORNIA, MEXICO

O:  9JUL2021 22:32:11  31.1N  115.4W Ml=2.0  EMSC   BAJA CALIFORNIA, MEXICO      

P:  7JUL2021 135251    31.8N  115.6W 2.5-4.4 AAAAA  So. California             

 

O:  9JUL2021 22:33:45  33.9N  118.7W Ml=2.3  EMSC   CHANNEL ISLANDS REG., CALIFORN

P:  9JUL2021 135256    33.9N  118.3W 2.5-4.8 AAAAA  So. California             

 

O:  9JUL2021 07:28:00  37.9N  118.6W ML=2.3  EMSC   CENTRAL CALIFORNIA           

P: 10JUL2021 135216    37.8N  118.2W 2.5-4.9 AAAAA  California/Nevada area     

 

O: 09JUL2021 07:03:18  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 07:13:02  38.5N  119.4W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 07:15:58  38.5N  119.5W ML=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 07:20:24  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 07:44:29  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 07:52:30  38.5N  119.6W ml=2.1  EMSC   NORTHERN CALIFORNIA

O: 09JUL2021 08:04:41  38.5N  119.5W ML=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 08:07:02  38.5N  119.5W ML=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 08:55:10  38.5N  119.5W ML=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:16:17  38.5N  119.5W ML=3.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:38:16  38.5N  119.5W ML=3.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:45:17  38.5N  119.5W ML=3.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:59:15  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 10:39:34  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 10:43:29  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 11:30:07  38.5N  119.5W ml=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 11:58:57  38.5N  119.6W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 12:05:19  38.5N  119.6W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 12:07:06  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 12:35:17  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 12:59:29  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 13:09:09  38.5N  119.5W Md=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 13:14:31  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 13:15:49  38.5N  119.5W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 13:44:47  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 13:51:27  38.5N  119.5W ml=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 13:55:43  38.5N  119.5W MD=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 14:12:07  38.5N  119.5W ml=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 14:27:32  38.5N  119.4W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 14:27:32  38.5N  119.4W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 15:22:51  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 15:37:56  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 15:56:59  38.5N  119.5W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 16:21:00  38.5N  119.5W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 16:32:47  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 16:48:47  38.5N  119.6W ML=2.5  EMSC   NORTHERN CALIFORNIA

O: 09JUL2021 17:06:27  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 17:27:41  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 17:29:17  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 18:11:26  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 18:46:16  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 19:05:20  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 19:22:34  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 19:55:36  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 20:12:07  38.5N  119.6W Md=2.6  EMSC   NORTHERN CALIFORNIA

O: 09JUL2021 20:18:38  38.5N  119.5W MD=3.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 20:26:12  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 20:48:25  38.5N  119.5W ml=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 21:05:56  38.5N  119.4W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 21:09:37  38.5N  119.6W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 21:45:06  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 22:57:57  38.5N  119.5W Md=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 22:59:49  38.5N  119.5W ML=3.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 23:11:35  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 23:27:32  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 23:54:57  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 00:17:41  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 00:18:33  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 01:12:45  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 01:21:00  38.5N  119.6W ML=3.3  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 01:23:48  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 01:57:33  38.5N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 02:10:10  38.5N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 02:10:10  38.5N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 02:19:21  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 02:19:21  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 02:48:44  38.5N  119.5W ML=3.2  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 03:52:47  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 03:56:15  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 04:19:59  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 10JUL2021 06:25:53  38.5N  119.5W Md=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 07:14:08  38.6N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 08:01:20  38.6N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 08:13:34  38.6N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 08:57:10  38.6N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:13:49  38.6N  119.5W Mw=3.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 09:47:01  38.6N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 10:11:49  38.6N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 11:11:12  38.6N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 11:49:18  38.6N  119.5W ml=3.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 12:00:26  38.6N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 12:42:35  38.6N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 13:49:27  38.6N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 14:00:35  38.6N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 15:11:36  38.6N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 15:20:48  38.6N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 15:43:58  38.6N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 16:15:45  38.6N  119.6W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 16:35:37  38.6N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 16:38:15  38.6N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 18:05:07  38.6N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 AAAAA  California/Nevada area     

 

ALASKA

 

O:  9JUL2021 19:14:59  51.7N  175.3W mb=4.7  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P:  7JUL2021 135318    51.7N  175.3W 3.5-5.2 AAAAA  Andreanoff Isls, Aleutians 

 

O:  9JUL2021 17:08:20  51.9N  175.8E mb=4.1  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P:  5JUL2021 135331    52.0N  177.0E 4.0-5.8 BAAAA  Rat Islands                

P:  7JUL2021 135331    52.0N  179.0E 4.0-5.8 AABAA  Rat Islands                

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O:  9JUL2021 14:04:03  47.7N  120.0W Md=2.3  EMSC   WASHINGTON                   

P:  5JUL2021 135310    47.7N  120.3W 2.0-3.9 BAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O:  9JUL2021 23:35:51  31.7N  104.4W ML=2.7  EMSC   WESTERN TEXAS                

P:  9JUL2021 135247    31.6N  103.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

O:  9JUL2021 13:00:41  44.3N  115.2W Ml=2.0  EMSC   SOUTHERN IDAHO               

P:  4JUL2021 135286    44.4N  115.1W 2.0-3.9 BAAAA  Montana/Idaho              

 

O: 09JUL2021 12:15:07  44.4N  116.1W Ml=3.5  EMSC   SOUTHERN IDAHO

O:  9JUL2021 12:23:49  44.4N  116.1W Ml=2.2  EMSC   SOUTHERN IDAHO               

P:  4JUL2021 135286    44.4N  115.1W 2.0-3.9 BAAAA  Montana/Idaho               

P:  8JUL2021 135286    44.4N  114.1W 2.0-3.9 AABAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O:  9JUL2021 11:10:02  28.9N   97.3W mb=2.4  EMSC   SOUTHERN TEXAS               

P:  8JUL2021 135205    28.0N   99.0W 3.0-4.5 AABAA  Northern Mexico            

 

O:  8JUL2021 08:55:23  40.5N   65.4W MB=2.4  ECAN Shelburne, NS                  

 

O:  8JUL2021 03:57:20  73.1N   70.8W MB=2.7  ECAN Pond Inlet, NU                 

P:  9JUL2021 135347    73.3N   73.5W 2.5-4.1 AAAAA  Baffin/Davis Strait Canada 

 

O:  8JUL2021 03:17:04  45.3N   76.2W MB=1.9  ECAN Almonte, ON                    

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 AAAAA  New York State             

 

HAWAII

 

O:  9JUL2021 16:17:49  19.2N  155.5W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII     

P: 10JUL2021 135199    20.3N  155.1W 4.0-5.9 AAAAA  Hawaii area                

 

STRONG M 6.0 HITS WESTERN NEVADA; CENTRAL AND NORTHERN CALIFORNIA

 

EARTHQUAKE SUMMARY FOR JULY 8, 2021

 

Global seismicity took a leap upward today with moderate to large earthquakes

spread over much of the world including in Atacama, Chile (M 5.5); South Sandwich Islands (M 4.7); the Pacific-Antarctic Ridge (M 5.4); the Macquarie Islands (M 5.2); Bolivia (M 5.2); Tarapaca, Chile (M 5.2);  El Salvador (M 5.4).  The strongest earthquake of the day was an M 6.0 which widely felt in the area of western Nevada, and in Central and Northern California. NEIC reported the mainshock was felt with maximum intensity V in Nevada at Garnerville, Smith, Wellington and in California at Topaz, Coleville, Markleeville, and IV in South Alpine County, Pinecrest, Bridgeport, Long Barn, California and in general as far as Canada, Colorado, Montana, Washington, Arizona, Idaho, Oregon and Baja California. A series of aftershocks was also felt with light to moderate intensity.

 

In previous issues of this summary the possibility of a moderate to large earthquake in the region of California had been addressed as:

 

"Hurricane Elsa made landfall in western Florida today. Hurricanes in this area are often followed by moderate to strong earthquakes in the area of California. This summary has been a strong advocate for weather-related seismicity at a distance for many years, and before that when this was a private communication. This does not occur in each instance when a hurricane makes landfall on the U.S. East coast but occurs often enough to be notable. This may be due to stresses and movement applied through the North American Plate from motions imparted by landfall. This relation is strongest at the beginning of the hurricane season. So enhancement along the west coast of North America is likely in the next several days. This summary noted in regard to the possible effects on seismicity of Hurricane Elsa.

 

 

"Hurricane Elsa continued today over the Carolinas with winds up to 45 kts. It is expected to track to the north in the next days It has caused considerable damage in Florida and Georgia leading to at least 11 deaths. It is expected to track up the Atlantic Coast of the U.S. eventually dissipating over Newfoundland, Canada at the end of the week. Regional seismicity in the eastern U.S. is likely to be enhanced while this storm is in the area. It is also possible that landfall in this region could trigger a moderate earthquake in California at this time." (July 6-7, 2021)

 

Hurricane Enrique also hit the Gulf of California on July 4 and had been expected to enhance seismicity in the California region at this time as noted in that summary:

 

 

"A series of moderately large to large earthquake hit along the western coastline of North and South America today. These included an M 5.6-5.7 in Nayarit, Gulf of California; two events of M 5.8-6.0 in Atacama, Chile and a series of light, but widely felt quakes in southern and central California of M 3.4-3.6...

 

 

A moderately strong earthquake occurred today in western Mexico in the southern Gulf of California. This event of M 5.6 in Nayarit was reported by NEIC to have been felt with maximum intensity V in Mazatlan, Sinaloa, Mexico and IV in Mascota, Jalisco. Intensity II-III shaking occurred in Nayarit at La Penita de Jattemba. Bicerias. Sam Blas, Jala, Tepic; in Jalisco at Ixtapa, Puerto Vallarta, Mascota, and in Manzanillo, Colima, Mexico.  As noted in the previous issue of this summary Hurricane Enrique passed over this epicenter several days ago:

 

 

"Hurricane Enrique  continued near Michoacan, Mexico with winds up to 080 kts. It is expected to move west of Mexico and not to make landfall in that country for several more days. Seismic effects on regional seismicity are expected at this time in the regions of Michoacan, Baja and the Gulf of California." (June 30, 2021)

 

The area may see additional triggered seismicity from Enrique over the next several days possibly including moderate to large earthquake." (July 2-3, 2021) (July 7-8, 2021)

 

 

Several other indicators had suggested that a strong earthquake was imminent in

California at this time. For example when a light earthquake occurred in western

South Dakota on June 16, this summary noted:

 

"Seismic activity in South Dakota often is precursory to significant seismicity in the western region of the North American plate.  For example, the last earthquakes in South Dakota of M 3.7 and 3.1 on June 4 and preceded the M 5.3 in Southern California the next day." (June 16, 2021)

 

In this regard, it is interesting to note that an M 4.1 earthquake in eastern

Montana near the North/South Dakota/Montana border occurred yesterday, July 7 and may have been precursory to today's activity. This summary had noted this event in the previous issue as:

 

"The strongest earthquake in the U.S. or Canada today was an M 3.9-4.1 in Eastern Montana. NEIC reported it was felt with maximum intensity IV in Roundup, and East Helena, Montana with II-III shaking in Custer, Musselshell, Billings, Jordan, Helena, Plentywood and Kalispell. This is the strongest earthquake in Eastern Montana within about 100 km of this epicenter in at least 30 years. Earthquakes of M 4.0 and 4.1 hit about 150 km from this epicenter on August 22, 2209 and November 26, 2007." (July 7, 2021)

 

Likewise an earthquake in Maryland occurred on June 26, 2021 this summary noted the possibility of it being precursory to a strong upcoming quake in California as:

 

"An unusual earthquake of M 2.6 was reported widely felt in the region of northern Maryland today. NEIC reported maximum intensity IV in Maryland at Baltimore with II-III in Gwynn, Catonsville, Windsor, Pikesville. The last earthquake of M>=2.6 within about 100 km of this epicenter was an M 2.8 on September 15, 2019. The largest event in the region in the past 30 years occurred as an M 4.6 on January 16,  1994. This was followed hours later by the M 6.7 in Northridge, California of the same date. It may have been precursory to that event. At the time of the M 4.1 on November 30, 2017 this summary noted in this regard:

 

 

"The Delaware earthquake of M 4.1-4.5 was reported felt with maximum intensity V in Clayton, Delaware; Newport New Jersey, and IV in Delaware at Dover, Magnolia, Camden Wyoming, Marydel, in Maryland at Galena, Sudlersville, and in general within about 50 km of the epicenter. It was felt with intensity II-III throughout much of the central eastern coast of the U.S. including in New Jersey, Delaware, Pennsylvania, Virginia, New York, Washington D.C, Connecticut, West Virginia, Massachusetts, Rhode Island, North Carolina, Vermont, Ohio, Kentucky, South Carolina, Illinois, Florida, Mississippi, Missouri, and Maryland, The earthquake in Delaware is one of the strongest recorded in that State. Earthquake in this area are often followed within days by a strong quake in southern or central California, such as occurred in the Northridge quake of M 6.7 on January 17, 1994 (preceded by an M 4.6 in southern Pennsylvania on January 16, 1994) and the Morgan Hill quake of April 24, 1984 preceded by an M 4.4 in Pennsylvania on April 23, 1984.  The events in August 2011 were later found to occur at the time of one of the strongest cosmic ray events known, possibly associated with a gravity wave and other effects which may have triggered this series. A similar relation may be found with today's events, but these area usually not announced until extensive data anaylsis. As this list includes the largest events in the Delaware area in the past 50 years and some of the strongest earthquakes in Central and southern California in the same period, it may be significant. This correlation is strongest with moderate starting quakes in the region of Delaware. The area of southern California near Northridge is currently at the 23-year cycles of large quakes in the area. A moderate earthquake in the region west of Los Angeles and north to San Francisco is considered possible in the next four days. At the least, residents should check their earthquake preparedness kits to see if they are ready for a moderate quake at this time." (December 1, 2017) (June 27, 2021)

 

Forecast 135217 had expected today's activity within about 25 km was likely to occur around July 7. As noted in previous issues of this summary this activity is near 100-102 degrees from the M 7.5 in Qinghai of May 21, 2021, the last major earthquake in the world and was probably promoted by energy from that source.  Following is a listing of events in today's series of M>=4. A more complete listing can be found in the "California" section of this summary.

 

O: 08JUL2021 22:50:12  38.5N  119.5W mb=5.2  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 22:59:45  38.5N  119.5W ML=4.3  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:33:40  38.5N  119.6W Mw=4.6  EMSC   NORTHERN CALIFORNIA

O: 08JUL2021 23:58:53  38.5N  119.5W Mw=4.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:27:46  38.5N  119.5W mb=4.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:46:00  38.5N  119.5W mb=4.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:04:17  38.6N  119.5W Mw=4.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:10:35  38.6N  119.5W ML=4.5  EMSC   CENTRAL CALIFORNIA

O:  8JUL2021 22:49:49  38.5N  119.5W Mw=6.0  EMSC   CENTRAL CALIFORNIA           

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 AAAAA  California/Nevada area     

 

Moderate earthquakes also occurred today with M 4.5 and 4.3 in Southeastern Alaska and in Northern Alaska. The events in southeastern Alaska preceded the M 6.0 in Nevada by about an hour. The earthquake of M 4.5 in Southeastern Alaska occurred within minutes of local solar noon and was probably promoted by high tidal stresses which maximize near this hour. Forecast 135334 had expected this activity within about 150 km was likely around July 8.

 

The earthquake of M 6.0 in California was preceded about an hour earlier by an M 4.4-4.5 in Southeastern Alaska. NEIC reported this earthquake was felt with intensity IV in Alaska at Haines, Skagway and II-III in Elfin Cove, Gustavus, Hoonah, Juneau, Douglas, and in Whitehorse, Yukon, Canada.

 

 

O: 08JUL2021 20:40:17  59.2N  136.2W Mw=4.5  EMSC   SOUTHEASTERN ALASKA

O: 08JUL2021 20:53:43  59.2N  136.3W ml=3.6  EMSC   SOUTHEASTERN ALASKA

O: 08JUL2021 21:31:31  59.2N  136.2W ML=3.3  EMSC   SOUTHEASTERN ALASKA

O:  8JUL2021 20:46:51  59.1N  136.1W ml=3.3  EMSC   SOUTHEASTERN ALASKA          

P:  8JUL2021 135334    59.0N  139.0W 3.0-4.6 AABAA  Southeast Alaska           

 

The M 4.2 in northern Alaska was not a classical aftershock of the events of August and May 2018 which included an M 6.3 on August 12, 2018 as they occurred about 200 km southwest of those epicenters.  This activity began at local solar midnight and was probably promoted by strong tidal stresses which maximize near this hour. This activity is at 102 degrees from the M 8.1 in the Kermadec Islands of March 4, 2021 and may have been promoted by energy from that source.

 

O: 08JUL2021 09:41:21  68.6N  148.6W ML=3.0  EMSC   NORTHERN ALASKA

O: 08JUL2021 09:50:53  68.6N  148.6W ML=3.2  EMSC   NORTHERN ALASKA

O: 08JUL2021 10:03:41  68.6N  148.5W ML=2.6  EMSC   NORTHERN ALASKA

O: 08JUL2021 15:19:57  68.7N  148.4W ml=3.4  EMSC   NORTHERN ALASKA

O:  8JUL2021 14:17:20  68.6N  148.5W mb=4.2  EMSC   NORTHERN ALASKA              

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O:  9JUL2021 00:26:25  25.1N   95.2E mb=4.6  EMSC   MYANMAR                      

P:  9JUL2021 135203    25.0N   97.0E 4.0-5.4 AABAA  Myanmar                    

 

O:  8JUL2021 08:20:54  36.7N   71.5E mb=4.9  EMSC   HINDU KUSH REGION, AFGHANISTAN

P:  6JUL2021 135229    37.0N   69.0E 3.8-5.3 AABAA  Hindu Kush/Pakistan        

 

NEIC reported this earthquake of M 4.9 in Afghanistan was felt with intensity II-III in the area(s) of  Dushanbe, Tajikistan.

 

O:  8JUL2021 13:05:03  41.7N   81.1E mb=4.8  EMSC   SOUTHERN XINJIANG, CHINA     

P:  3JUL2021 135283    41.0N   83.0E 4.0-5.4 BABAA  Kirgizstan/Xinjiang        

P: 10JUL2021 135283    40.0N   78.0E 4.0-5.6 ABBAA  Kirgizstan/Xinjiang        

 

O:  9JUL2021 01:38:35  37.2N   71.8E mb=4.4  EMSC   TAJIKISTAN                   

P: 11JUL2021 135230    39.0N   72.0E 3.8-5.2 ABAAA  Hindu Kush/Pakistan        

 

O:  8JUL2021 13:23:26  34.6N   98.0E mb=5.1  EMSC   SOUTHERN QINGHAI, CHINA      

P:  4JUL2021 135262    35.0N   98.0E 3.5-5.2 BAAAA  So. China                  

 

INDONESIA AND PHILIPPINES

 

 

 

O: 08JUL2021 10:36:36   0.4S  123.0E ML=4.0  EMSC   SULAWESI, INDONESIA

O:  8JUL2021 11:05:01   0.1S  123.2E ML=4.2  EMSC   SULAWESI, INDONESIA          

P:  6JUL2021 135160     2.0S  123.0E 4.0-5.4 ABAAA  Sulawesi area              

 

O:  9JUL2021 04:12:27   3.2N  128.1E ML=4.1  EMSC   NORTH OF HALMAHERA, INDONESIA

O: 08JUL2021 20:50:14   4.4N  126.8E ML=4.7  EMSC   KEPULAUAN TALAUD, INDONESIA

P:  7JUL2021 135136     4.0N  127.0E 4.0-5.4 AAAAA  Halmahera                   

 

O:  8JUL2021 20:36:13   4.4N  123.5E ML=4.4  EMSC   CELEBES SEA                  

P:  5JUL2021 135137     4.0N  125.0E 4.0-5.4 BABAA  Mindanao, Philippines      

 

O:  8JUL2021 23:53:10   5.0S  150.3E mb=4.7  EMSC   NEW BRITAIN REGION, P.N.G.   

P:  6JUL2021 135151     5.0S  150.0E 4.0-5.6 AAAAA  New Ireland                

 

O:  8JUL2021 10:09:18   5.3N  126.5E mb=5.0  EMSC   MINDANAO, PHILIPPINES        

O: 09JUL2021 00:24:44   5.4N  125.9E ML=4.4  EMSC   MINDANAO, PHILIPPINES

P:  7JUL2021 135136     4.0N  127.0E 4.0-5.4 ABAAA  Halmahera                  

 

NEIC reported this earthquake of M 5.0 in Southern Mindanao, Philippines was felt with intensity II-III in the area(s) of Southern Mindanao, Philippines at Buayan.

 

O:  8JUL2021 15:18:11   6.5S  104.9E ML=4.5  EMSC   SUNDA STRAIT, INDONESIA      

P:  3JUL2021 135158     7.0S  104.0E 4.0-5.4 BAAAA  So. of Sumatera            

 

O:  9JUL2021 01:53:32   7.2S  126.1E mb=4.5  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P:  9JUL2021 135142     6.0S  125.0E 4.0-5.4 ABAAA  Banda Sea                  

 

NEIC reported this earthquake of M 4.5 in Timor, Indonesia was felt with intensity II-III in the area(s) of Timor, Indonesia at Dili.

 

O: 08JUL2021 09:26:28   9.0S  111.8E ML=4.1  EMSC   SOUTH OF JAVA, INDONESIA

O:  8JUL2021 11:28:38   9.1S  112.9E ML=4.8  EMSC   SOUTH OF JAVA, INDONESIA     

P:  5JUL2021 135156     9.0S  113.0E 4.0-5.5 BAAAA  So. of Bali                

 

CENTRAL AND SOUTH AMERICA

 

O:  9JUL2021 05:05     20.3S   69.7W mb=5.3  GUC    Tarapaca at Alto Hospicio, El

P:  8JUL2021 135376    20.0S   71.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

GUC reported this earthquake was felt with intensity IV in  Tarapaca at Alto Hospicio, El Loa, Huara, Iquique, Mamina, Pica, Pozo Almonte; III in La Tirana, Pisagua; in Arica with IV in Cuya and III in Pocon Chile, San Miguel de Azapa, Chile.

 

O:  9JUL2021 02:07     28.8S   71.4W mb=4.0  GUC    Atacama at Freirina and Huasco

O:  8JUL2021 20:38     28.8S   71.5W mb=5.5  GUC    Coquimbo at La Serena and Vicu

P:  8JUL2021 135367    29.0S   71.0W 4.0-5.5 AAAAA  Coast Central Chile        

 

GUC reported the M 4.4 was felt with intensity III in  Atacama at Freirina and Huasco, Chile.

GUC reported this earthquake was felt with intensity  V in  Coquimbo at La Serena and Vicuna; IV in La Higuera, Paiguano and III in Coquimbo, Rio Hurtado and Tongoy; IV in Atacama at Alto del Carmen, Freirina, Huasco, Vallenar, III in Caldera, Copiapo and Tierra Amarilla, Chile.

 

O:  8JUL2021 17:56     34.8S   71.8W mb=4.8  GUC    Maule at Curico, Rauco, Romera

P:  5JUL2021 135382    35.0S   70.0W 4.0-5.5 BABAA  Central Chile              

 

GUC reported this earthquake was felt with intensity  V in  Maule at Curico, Rauco, Romeral, Sagrada, IV in Hualane, Llico, Molina, Pelarco, Talca, Teno; III in Colbun, Iloca, San Clemente, Villa Alegre; V in O'Higgins at Pichilemu, Pumanque and Santa Cruz; IV in Lolil, Machali, Palmilla, Paredones, Puente Negro, San Fernando; III in Codegua, Pichidega, Requinoa; III in Santiago at Paine, San Bernardo, Santiago and II in Talagante, Chile. Tarapaca at Alto Hospicio, Iquique and Pica; II in Huara, Chile.

 

 

O:  9JUL2021 01:10:30  10.6N   86.5W ML=4.1  EMSC   OFF COAST OF COSTA RICA      

P:  8JUL2021 135184    12.0N   86.0W 3.5-5.3 ABAAA  Nicaragua                  

 

O:  8JUL2021 20:31:35  13.1N   90.1W Mw=5.4  EMSC   OFFSHORE EL SALVADOR         

P: 11JUL2021 135173    14.0N   90.0W 3.5-5.5 BAAAA  Guatemala                  

 

NEIC reported this earthquake of M 5.4 in El Salvador was felt with intensity II-III in the area(s) of El Salvador at San Salvador and in Antigua, Guatemala.

 

O:  9JUL2021 07:08:09  16.0S   73.9W ML=4.0  EMSC   NEAR COAST OF SOUTHERN PERU  

P:  8JUL2021 135359    16.0S   74.0W 4.0-5.6 AAAAA  So. Peru/Bolivia            

 

O:  8JUL2021 15:48:38  18.5N   67.8W Md=3.1  EMSC   MONA PASSAGE, PUERTO RICO    

O: 08JUL2021 20:59:14  17.9N   67.1W Md=3.3  EMSC   PUERTO RICO REGION

P: 10JUL2021 135187    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O:  8JUL2021 10:30:38  18.5S   71.2W Mw=5.2  EMSC   OFF COAST OF TARAPACA, CHILE 

P: 10JUL2021 135359    18.0S   73.0W 4.0-5.7 AABAA  So. Peru/Bolivia           

 

NEIC reported this earthquake of M 5.2 in Northern Chile was felt with intensity II-III in the area(s) of Northern Chile in Tarapaca at Iquique and Arica.

 

O:  9JUL2021 06:33:25  18.6N   73.5W ML=3.1  EMSC   HAITI REGION                 

P:  9JUL2021 135189    20.0N   71.0W 3.4-5.3 ABBAA  Puerto Rico                

 

O:  8JUL2021 14:53:53  19.0N   68.3W Md=3.4  EMSC   DOMINICAN REPUBLIC REGION    

P: 11JUL2021 135194    20.0N   69.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O:  8JUL2021 19:35:24  19.9N   70.4W ML=3.1  EMSC   DOMINICAN REPUBLIC REGION    

P:  9JUL2021 135189    20.0N   71.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O:  9JUL2021 05:05:29  20.4S   68.7W Mw=5.2  EMSC   POTOSI, BOLIVIA              

P:  6JUL2021 135368    22.0S   69.0W 4.0-5.4 BBAAA  Coast No. Chile            

 

NEIC reported this earthquake of M 5.2 in Southern Peru was felt with intensity II-III in the area(s) of Southern Peru at Ilo, Moquegua; Tacna; Iquique and Arequipa and in Iquique, Tarapaca, Chile.

 

O:  8JUL2021 08:01:25  21.1N  106.1W ML=3.6  EMSC   OFFSHORE NAYARIT, MEXICO     

P:  4JUL2021 135172    19.0N  107.0W 3.5-5.2 BBAAA  Coast of Jalisco, Mexico   

 

O:  8JUL2021 23:13:15  22.0S   68.6W mb=4.4  EMSC   ANTOFAGASTA, CHILE           

P:  8JUL2021 135365    22.0S   67.0W 4.0-5.6 AABAA  Argentina                  

 

O: 08JUL2021 23:42:50  28.7S   71.7W mb=4.4  EMSC   OFFSHORE ATACAMA, CHILE

O: 09JUL2021 02:07:51  28.8S   71.7W mb=4.4  EMSC   OFFSHORE ATACAMA, CHILE

O:  8JUL2021 20:38:31  28.7S   71.6W Mw=5.4  EMSC   OFFSHORE ATACAMA, CHILE      

O:  9JUL2021 06:34:00  29.0S   69.8W ML=4.0  EMSC   ATACAMA, CHILE               

P:  8JUL2021 135367    29.0S   71.0W 4.0-5.5 AAAAA  Coast Central Chile        

 

NEIC reported this earthquake of M 5.4 in Atacama, Chile was felt with intensity II-III in the area(s) of Atacama, Chile at Vallenar and Copiapo.

 

O:  8JUL2021 17:56:25  34.7S   71.9W Mw=4.8  EMSC   LIBERTADOR O'HIGGINS, CHILE  

P:  5JUL2021 135382    35.0S   70.0W 4.0-5.5 BABAA  Central Chile              

 

NEIC reported this earthquake of M 4.8 in O'Higgins, Chile was felt with intensity III-IV in the area(s) of Curico, Maule, Rancagua, O'Higgins; Santiago and Vina del Mar, Valparaiso, Chile.

 

 

AFRICA AND EUROPE

 

O:  9JUL2021 01:38:14  12.8S   45.7E ML=3.1  EMSC   MAYOTTE REGION               

P:  8JUL2021 135354    12.0S   45.0E 3.0-4.6 AAAAA  Madagascar 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

 

O:  8JUL2021 10:34:58  54.8S  143.9E mb=5.2  EMSC   WEST OF MACQUARIE ISLAND     

 

O:  8JUL2021 07:09:18  55.9S   26.5W Mw=5.0  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  7JUL2021 135398    56.0S   28.0W 4.0-6.0 AAAAA  So. Sandwich Islands       

 

O:  9JUL2021 01:21:28  56.2S  143.4W mb=5.4  EMSC   PACIFIC-ANTARCTIC RIDGE      

 

O:  9JUL2021 05:23:30  57.9S   26.4W mb=4.7  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  7JUL2021 135398    56.0S   28.0W 4.0-6.0 AAAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  8JUL2021 10:18:07  33.1S  118.5E ML=2.4  EMSC   WESTERN AUSTRALIA            

P: 10JUL2021 135380    30.0S  118.0E 2.0-3.4 ACAAA  Central Australia          

 

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

today. GeoNet did not report any felt events in the area.

 

JAPAN AND KURIL ISLANDS

 

O:  9JUL2021 00:09:30  24.6N  124.4E ML=4.0  EMSC   SOUTHWESTERN RYUKYU ISL., JAPA

P:  4JUL2021 135207    25.0N  124.0E 4.0-5.4 BAAAA  Ryukyu Islands             

 

O:  8JUL2021 11:17:26  32.0N  143.7E mb=5.2  EMSC   IZU ISLANDS, JAPAN REGION    

P:  6JUL2021 135242    33.0N  142.0E 4.0-5.7 AABAA  Off East Coast Honshu      

 

O:  9JUL2021 00:30:20  45.3N  150.3E mb=4.6  EMSC   KURIL ISLANDS                

P:  5JUL2021 135306    45.0N  152.0E 3.5-5.7 BABAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 09JUL2021 03:26:17  38.4N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 22:50:12  38.5N  119.5W mb=5.2  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 22:57:30  38.5N  119.5W ml=3.3  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 22:59:45  38.5N  119.5W ML=4.3  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:01:01  38.5N  119.5W ML=3.7  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:03:22  38.5N  119.5W ML=3.1  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:07:41  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:11:03  38.5N  119.6W ML=3.4  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:13:58  38.5N  119.5W ML=3.4  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:16:21  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:19:00  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:22:08  38.5N  119.5W ML=3.0  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:24:20  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:28:30  38.5N  119.5W Mh=2.8  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:29:35  38.5N  119.6W ML=2.6  EMSC   NORTHERN CALIFORNIA

O: 08JUL2021 23:33:40  38.5N  119.6W Mw=4.6  EMSC   NORTHERN CALIFORNIA

O: 08JUL2021 23:36:20  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:38:38  38.5N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:40:15  38.5N  119.6W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:47:43  38.5N  119.5W ML=3.5  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:49:41  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:57:25  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:58:53  38.5N  119.5W Mw=4.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:01:11  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:03:18  38.5N  119.5W ML=3.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:05:21  38.5N  119.5W ML=3.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:12:28  38.5N  119.5W ml=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:15:07  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:17:45  38.5N  119.5W Ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:19:27  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:27:46  38.5N  119.5W mb=4.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:27:46  38.5N  119.5W mb=4.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:31:06  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:40:36  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:41:39  38.5N  119.5W Md=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:42:59  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:48:43  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:51:16  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:56:45  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:58:01  38.5N  119.5W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 00:59:07  38.5N  119.5W ML=3.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:03:32  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:04:57  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:07:10  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:15:37  38.5N  119.6W Md=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:20:41  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:24:18  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:26:05  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:32:36  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:40:57  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:43:17  38.5N  119.5W ml=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:46:00  38.5N  119.5W mb=4.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:49:08  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:56:32  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:57:42  38.5N  119.6W Md=2.8  EMSC   NORTHERN CALIFORNIA

O: 09JUL2021 01:58:49  38.5N  119.5W ML=3.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:00:55  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:03:16  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:10:13  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:18:06  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:36:16  38.5N  119.6W ml=2.4  EMSC   NORTHERN CALIFORNIA

O: 09JUL2021 02:53:18  38.5N  119.6W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 03:03:16  38.5N  119.5W Md=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 03:09:38  38.5N  119.6W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 03:10:41  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 03:35:17  38.5N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 04:03:57  38.5N  119.6W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 04:20:33  38.5N  119.5W ML=2.8  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 04:31:16  38.5N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 04:33:47  38.5N  119.5W ML=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:15:19  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:15:19  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:20:02  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:20:02  38.5N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:22:34  38.5N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:22:34  38.5N  119.5W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:54:20  38.5N  119.5W ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:03:28  38.5N  119.4W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:05:11  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:10:48  38.5N  119.5W ml=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:12:07  38.5N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:42:19  38.5N  119.5W ML=2.9  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:48:02  38.5N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:57:27  38.5N  119.5W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 07:03:18  38.5N  119.5W Md=2.5  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:44:40  38.6N  119.5W ML=3.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:08:28  38.6N  119.5W ML=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 01:52:26  38.6N  119.5W ml=2.4  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:23:43  38.6N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:31:57  38.6N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 02:31:57  38.6N  119.5W Md=2.6  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 03:48:14  38.6N  119.5W ml=3.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 03:49:26  38.6N  119.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 04:16:21  38.6N  119.5W ML=2.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 04:29:53  38.6N  119.5W ml=2.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:04:17  38.6N  119.5W Mw=4.0  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:10:35  38.6N  119.5W ML=4.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:10:35  38.6N  119.5W ML=4.5  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:43:54  38.6N  119.5W ML=3.3  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 05:58:23  38.6N  119.5W ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 09JUL2021 06:13:18  38.6N  119.5W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 08JUL2021 23:52:21  38.7N  119.5W ml=2.1  EMSC   NEVADA

O:  8JUL2021 22:49:49  38.5N  119.5W Mw=6.0  EMSC   CENTRAL CALIFORNIA           

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 AAAAA  California/Nevada area     

 

O:  9JUL2021 01:17:31  31.7N  115.9W ML=2.5  EMSC   BAJA CALIFORNIA, MEXICO      

P:  7JUL2021 135251    31.8N  115.6W 2.5-4.4 AAAAA  So. California             

 

O:  9JUL2021 00:06:28  33.2N  115.6W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 11JUL2021 135251    32.8N  116.0W 2.5-4.4 AAAAA  So. California             

 

O:  8JUL2021 19:07:06  35.9N  117.7W Ml=2.4  EMSC   CENTRAL CALIFORNIA           

P:  6JUL2021 135261    35.8N  117.8W 2.5-5.1 AAAAA  So. California             

 

O:  9JUL2021 02:34:35  37.2N  121.7W Md=2.7  EMSC   NORTHERN CALIFORNIA          

P:  8JUL2021 135221    37.8N  122.6W 2.5-4.6 AAAAA  Central California         

 

NEIC reported this earthquake of M 3.0 in Central California was felt with intensity II-III in the area(s) of Central California at Fresno and Los Banos.

 

NEIC reported an earthquake of M 2.7 in Central California was felt with intensity II-III in the area(s) of Central California in San Jose, Sunnyvale, Santa Cruz, Fremont, Los Banos, Castro Valley, Manteca and Pittsburg.

 

O:  8JUL2021 23:54:22  37.8N  119.4W Md=2.0  EMSC   CENTRAL CALIFORNIA           

P:  5JUL2021 135214    37.3N  119.4W 2.5-4.5 BAAAA  California/Nevada area      

 

O:  8JUL2021 22:49:49  38.5N  119.5W Mw=6.0  EMSC   CENTRAL CALIFORNIA           

P:  7JUL2021 135217    38.8N  119.6W 2.5-4.6 AAAAA  California/Nevada area     

 

O:  8JUL2021 07:36:25  38.6N  122.3W Mw=3.6  EMSC   NORTHERN CALIFORNIA          

O:  8JUL2021 19:07:46  38.8N  122.8W Md=2.4  EMSC   NORTHERN CALIFORNIA          

P:  9JUL2021 135222    38.7N  122.7W 2.5-4.4 AAAAA  Central California         

 

NEIC reported this earthquake of M 3.6 in Central California was felt with intensity II-III in the area(s) of Central California at Napa, Saint Helena, Angwin, Vacaville, Santa Rosa, Petaluma, Woodland, Martinez and Sacramento.

 

O:  8JUL2021 07:39:01  40.0N  117.8W ml=2.1  EMSC   NEVADA                       

P:  3JUL2021 135276    40.0N  117.9W 2.5-4.4 BAAAA  California/Nevada area     

 

 

ALASKA

 

O: 08JUL2021 09:41:21  68.6N  148.6W ML=3.0  EMSC   NORTHERN ALASKA

O: 08JUL2021 09:50:53  68.6N  148.6W ML=3.2  EMSC   NORTHERN ALASKA

O: 08JUL2021 10:03:41  68.6N  148.5W ML=2.6  EMSC   NORTHERN ALASKA

O: 08JUL2021 15:19:57  68.7N  148.4W ml=3.4  EMSC   NORTHERN ALASKA

O:  8JUL2021 14:17:20  68.6N  148.5W mb=4.2  EMSC   NORTHERN ALASKA              

 

O: 08JUL2021 20:40:17  59.2N  136.2W Mw=4.5  EMSC   SOUTHEASTERN ALASKA

O: 08JUL2021 20:53:43  59.2N  136.3W ml=3.6  EMSC   SOUTHEASTERN ALASKA

O: 08JUL2021 21:31:31  59.2N  136.2W ML=3.3  EMSC   SOUTHEASTERN ALASKA

O:  8JUL2021 20:46:51  59.1N  136.1W ml=3.3  EMSC   SOUTHEASTERN ALASKA          

P:  8JUL2021 135334    59.0N  139.0W 3.0-4.6 AABAA  Southeast Alaska           

 

O:  8JUL2021 11:38:34  60.6N  153.0W ML=3.3  EMSC   SOUTHERN ALASKA              

P:  9JUL2021 135338    60.1N  153.4W 3.2-5.3 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O:  8JUL2021 09:03:39  45.4N  117.6W Ml=2.1  EMSC   OREGON                       

P:  4JUL2021 135288    47.5N  115.8W 2.0-3.9 BCBAA  Montana/Idaho              

 

ROCKY MOUNTAINS REGION

 

O:  9JUL2021 01:09:09  31.7N  104.4W ML=3.5  EMSC   WESTERN TEXAS                

O:  9JUL2021 02:02:33  31.7N  104.6W ML=2.5  EMSC   WESTERN TEXAS                

P:  9JUL2021 135247    31.6N  103.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

O: 08JUL2021 22:34:28  44.3N  115.2W Ml=2.4  EMSC   SOUTHERN IDAHO

O:  8JUL2021 08:01:38  44.3N  115.2W Ml=2.1  EMSC   SOUTHERN IDAHO               

P:  4JUL2021 135286    44.4N  115.1W 2.0-3.9 BAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O:  8JUL2021 08:35:30  36.1N   89.8W Md=2.1  EMSC   SOUTHEASTERN MISSOURI        

P:  6JUL2021 135236    36.7N   89.7W 2.0-3.9 AAAAA  New Madrid area            

 

O: 08JUL2021 14:14:06  36.5N   99.0W mb=2.3  EMSC   OKLAHOMA

O: 08JUL2021 14:16:59  36.5N   99.0W mb=2.5  EMSC   OKLAHOMA

O: 08JUL2021 15:31:50  36.5N   99.0W ML=2.0  EMSC   OKLAHOMA

O:  8JUL2021 14:09:49  36.5N   99.0W mb=2.9  EMSC   OKLAHOMA                     

P:  5JUL2021 135268    38.0N   98.0W 2.0-4.0 BBAAA  Southern Plains            

 

O:  8JUL2021 03:17:04  45.3N   76.2W MB=1.9  ECAN Almonte, ON                    

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 AAAAA  New York State             

 

HAWAII

 

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

 

MODERATE EARTHQUAKES IN TAIWAN TRIGGERED BY TROPICAL STORM 07W

 

EARTHQUAKE SUMMARY FOR JULY 7, 2021

 

The series of moderate earthquakes in Taiwan associated with the passage of TS 07W over the past two days continued today. The largest of today's events were of M 5.3 and M 5.2 which was felt in Taiwan with intensity VI-VII in Hualien; IV in Taoyuan and Taichung and II-III in Taipei, Taiwan. CWB reported the largest of these events of M 5.4 each were felt in Taiwan with intensity V in Hualien, III in nmantou, Taichung, Changhua; II in Yilan, Taoyuan, Hsinchu, Miali, Yunlin and I in Taipei, Kaohsiung and Tainan Counties, Taiwan. As noted in the previous issue of this summary, this activity appears to be related to the passage of Tropical Storm 07W:

 

"A series of moderate earthquakes also occurred today in Taiwan. This continues a series of moderate sized events in Taiwan which began yesterday. This regional enhancement is likely related to the passage of Tropical Strom 07W through the area over the past two days as noted in previous issues of this summary:

 

"TD 07W continued today south of Taiwan with winds up to 30 kts. It is expected to track to the northeast over the next several days and could enhance seismicity in the region of Taiwan." (July 6, 2021)

 

Forecast 135209 expected today's activity within about 50 km of the epicenters was likely around July 7.

 

O:  7JUL2021 11:38:13  23.9N  121.6E ML=4.1  TAI    Hualien, Taiwan              

O:  7JUL2021 13:36:27  23.9N  121.6E ML=4.6  TAI    Hualien, Taiwan               

O:  7JUL2021 11:24:58  23.9N  121.6E ML=5.4  TAI    Hualien, Taiwan              

O:  7JUL2021 22:11:55  23.9N  121.6E ML=5.4  TAI    Hualien, Taiwan              

O:  7JUL2021 23:31:02  23.9N  121.6E ML=4.0  TAI    Hualien, Taiwan               

O: 07JUL2021 11:24:57  23.8N  121.7E mb=5.3  EMSC   TAIWAN

O: 07JUL2021 22:11:54  23.8N  121.7E Mw=5.2  EMSC   TAIWAN

O: 07JUL2021 13:38:27  23.9N  121.6E ML=4.6  EMSC   TAIWAN

O: 07JUL2021 23:31:02  23.9N  121.6E ML=4.0  EMSC   TAIWAN

P:  7JUL2021 135209    24.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

The strongest earthquake in the U.S. or Canada today was a regional aftershock of the M 5.2 two days ago north of the island of Hawaii. Today's epicenter was about 50 km south of that  and shaking was felt in Hawaii with intensity II-III in Kailua Kona, Waikoloa, Kula, Kapaau, Houaloa, Kamuela, Kihei, Makawao, Lahaima, and Waikuku. Forecast 135199 had expected today's event was likely within about 50 km  of this epicenter around July 5.

 

O:  7JUL2021 17:40:57  19.9N  156.7W ML=4.2  EMSC   HAWAII REGION, HAWAII        

P:  5JUL2021 135199    20.1N  156.1W 4.0-5.5 AAAAA  Hawaii area                

 

Hurricane Elsa made landfall in western Florida today. Hurricanes in this area are often followed by moderate to strong earthquakes in the area of California. This summary has been a strong advocate for weather-related seismicity at a distance for many years, and before that when this was a private communication. This does not occur in each instance when a hurricane makes landfall on the U.S. East coast but occurs often enough to be notable. This may be due to stresses and movement applied through the North American Plate from motions imparted by landfall. This relation is strongest at the beginning of the hurricane season. So enhancement along the west coast of North America is likely in the next several days. This summary noted in regard to the possible effects on seismicity of Hurricane Elsa.

 

 

"Hurricane Elsa continued today over the Carolinas with winds up to 45 kts. It is expected to track to the north in the next days. It has caused considerable damage in Florida and Georgia leading to at least 11 deaths. It is expected to track up the Atlantic Coast of the U.S. eventually dissipating over Newfoundland, Canada at the end of the week. Regional seismicity in the eastern U.S. is likely to be enhanced while this storm is in the area. It is also possible that landfall in this region could trigger a moderate earthquake in California at this time." (July 6-7, 2021)

 

Hurricane Enrique also hit the Gulf of California on July 4 and had been expected to enhance seismicity in the California region at this time as noted in that summary:

 

 

"A series of moderately large to large earthquake hit along the western coastline of North and South America today. These included an M 5.6-5.7 in Nayarit, Gulf of California; two events of M 5.8-6.0 in Atacama, Chile and a series of light, but widely felt quakes in southern and central California of M 3.4-3.6...

 

 

A moderately strong earthquake occurred today in western Mexico in the southern Gulf of California. This event of M 5.6 in Nayarit was reported by NEIC to have been felt with maximum intensity V in Mazatlan, Sinaloa, Mexico and IV in Mascota, Jalisco. Intensity II-III shaking occurred in Nayarit at La Penita de Jattemba. Bicerias. Sam Blas, Jala, Tepic; in Jalisco at Ixtapa, Puerto Vallarta, Mascota, and in Manzanillo, Colima, Mexico.  As noted in the previous issue of this summary Hurricane Enrique passed over this epicenter several days ago:

 

 

"Hurricane Enrique  continued near Michoacan, Mexico with winds up to 080 kts. It is expected to move west of Mexico and not to make landfall in that country for several more days. Seismic effects on regional seismicity are expected at this time in the regions of Michoacan, Baja and the Gulf of California." (June 30, 2021)

 

The area may see additional triggered seismicity from Enrique over the next several days possibly including moderate to large earthquake." (July 2-3, 2021)

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:  7JUL2021 11:38:13  23.9N  121.6E ML=4.1  TAI    Hualien, Taiwan              

O:  7JUL2021 13:36:27  23.9N  121.6E ML=4.6  TAI    Hualien, Taiwan              

O:  7JUL2021 11:24:58  23.9N  121.6E ML=5.4  TAI    Hualien, Taiwan              

O:  7JUL2021 22:11:55  23.9N  121.6E ML=5.4  TAI    Hualien, Taiwan              

O:  7JUL2021 23:31:02  23.9N  121.6E ML=4.0  TAI    Hualien, Taiwan              

O: 07JUL2021 11:24:57  23.8N  121.7E mb=5.3  EMSC   TAIWAN

O: 07JUL2021 22:11:54  23.8N  121.7E Mw=5.2  EMSC   TAIWAN

O: 07JUL2021 13:38:27  23.9N  121.6E ML=4.6  EMSC   TAIWAN

O: 07JUL2021 23:31:02  23.9N  121.6E ML=4.0  EMSC   TAIWAN

P:  7JUL2021 135209    24.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

CWB reported the largest of these events of M 5.4 each were felt in Taiwan with intensity V in Hualien, III in nmantou, Taichung, Changhua; II in Yilan, Taoyuan, Hsinchu, Miali, Yunlin and I in Taipei, Kaohsiung and Tainan Counties, Taiwan.

 

 

O:  7JUL2021 08:26:42  26.0N   90.4E ML=3.7  EMSC   MEGHALAYA, INDIA REGION      

O:  7JUL2021 10:12:30  28.1N   84.6E ML=4.2  EMSC   NEPAL                        

P:  6JUL2021 135273    30.0N   90.0E 3.8-5.4 ABCAA  Xizang                     

 

O:  7JUL2021 22:52:12  37.6N   72.1E mb=4.1  EMSC   TAJIKISTAN                   

P:  6JUL2021 135229    37.0N   69.0E 3.8-5.3 AABAA  Hindu Kush/Pakistan        

P: 11JUL2021 135230    39.0N   72.0E 3.8-5.2 BBAAA  Hindu Kush/Pakistan        

 

O: 07JUL2021 10:01:21  34.5N   98.9E mb=4.5  EMSC   SOUTHERN QINGHAI, CHINA

O:  7JUL2021 07:27:11  34.5N   98.9E mb=4.6  EMSC   SOUTHERN QINGHAI, CHINA      

P:  4JUL2021 135262    35.0N   98.0E 3.5-5.2 ABAAA  So. China                  

 

INDONESIA AND PHILIPPINES

 

O:  7JUL2021 12:30:47   3.0S  139.6E mb=5.1  EMSC   NEAR N COAST OF PAPUA, INDONES

O:  8JUL2021 03:05:28   3.1S  139.6E ML=4.1  EMSC   PAPUA, INDONESIA             

P:  4JUL2021 135155     3.0S  140.0E 4.0-5.4 BAAAA  Papua New Guinea           

 

O:  7JUL2021 12:44:53   4.0S  129.2E ML=4.4  EMSC   BANDA SEA                    

P:  7JUL2021 135164     4.0S  131.0E 4.0-5.6 AABAA  West Irian, PNG            

 

O:  7JUL2021 23:23:46   4.5S  102.3E ML=4.0  EMSC   SOUTHERN SUMATRA, INDONESIA  

P:  5JUL2021 135158     5.0S  102.0E 4.0-5.4 AAAAA  So. of Sumatera            

 

O:  8JUL2021 06:19:41   5.4N  126.5E mb=4.5  EMSC   MINDANAO, PHILIPPINES        

P:  7JUL2021 135136     4.0N  127.0E 4.0-5.4 ABAAA  Halmahera                  

 

O:  7JUL2021 20:58:30   7.5N  124.8E ML=4.8  EMSC   MINDANAO, PHILIPPINES        

P:  7JUL2021 135131     8.0N  125.0E 4.0-5.6 AAAAA  Central Philippines        

 

O:  8JUL2021 02:58:50   7.7S  127.8E mb=4.5  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P:  8JUL2021 135142     6.0S  128.0E 4.0-5.4 ABAAA  Banda Sea                  

 

O:  8JUL2021 01:55:50  21.6N  143.2E mb=4.5  EMSC   MARIANA ISLANDS REGION       

P:  8JUL2021 135210    22.0N  143.0E 4.0-5.5 AAAAA  Volcano Islands            

 

 

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

 

CENTRAL AND SOUTH AMERICA

 

O:  8JUL2021 05:14:54  17.0N   96.6W ML=4.2  EMSC   OAXACA, MEXICO               

P:  4JUL2021 135186    17.0N   96.0W 3.5-5.5 BAAAA  Oaxaca, Mexico             

 

O:  8JUL2021 02:07:38  18.6N   67.0W Md=3.4  EMSC   PUERTO RICO REGION           

P: 10JUL2021 135187    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O:  7JUL2021 08:05:01  19.2N   65.2W ML=3.4  EMSC   PUERTO RICO REGION           

P:  5JUL2021 135178    19.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

 

O:  7JUL2021 21:50:26  19.6N  102.1W ML=3.9  EMSC   MICHOACAN, MEXICO            

P:  3JUL2021 135182    19.0N  102.0W 3.5-5.3 BAAAA  Michoacan, Mexico          

 

O:  8JUL2021 06:00:06  20.0N   70.3W ML=3.1  EMSC   DOMINICAN REPUBLIC REGION    

P:  9JUL2021 135189    20.0N   71.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O:  8JUL2021 04:12:48  20.2N   73.6W ML=3.0  EMSC   HAITI REGION                 

P:  9JUL2021 135189    20.0N   71.0W 3.4-5.3 AABAA  Puerto Rico                

 

O:  8JUL2021 03:02:31  19.8S   69.4W mb=4.1  EMSC   TARAPACA, CHILE              

P:  8JUL2021 135376    20.0S   71.0W 4.0-5.6 AABAA  So. Peru/Bolivia           

 

O:  7JUL2021 17:28:13  21.2S   68.6W Mw=4.7  EMSC   ANTOFAGASTA, CHILE           

O:  7JUL2021 17:28     21.1S   68.7W mb=4.7  GUC    Tarapaca at Alto Hospicio, Iqu

P:  6JUL2021 135368    22.0S   69.0W 4.0-5.4 AAAAA  Coast No. Chile            

 

GUC reported this earthquake was felt with intensity  III in  Tarapaca at Alto Hospicio, Iquique and Pica; II in Huara, Chile.

NEIC reported this earthquake of M 4.1 in Northern Chile was felt with intensity II-III in the area(s) of Northern Chile in Tarapaca at Iquique.

An M 4.7 was earlier felt in the Antofagasta area of northern Chile in the same area.

 

 

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

 

AFRICA AND EUROPE

 

O:  7JUL2021 13:07:10  12.8S   45.6E ML=3.2  EMSC   MAYOTTE REGION               

P:  8JUL2021 135354    12.0S   45.0E 3.0-4.6 AAAAA  Madagascar area            

 

O:  7JUL2021 17:58:00  28.2N   16.3W ML=3.1  EMSC   CANARY ISLANDS, SPAIN REGION 

P:  5JUL2021 135196    28.0N   16.0W 3.0-4.6 AAAAA  Canary Islands             

 

O:  8JUL2021 01:16:56  37.9N   21.0E mb=4.3  EMSC   SOUTHERN GREECE              

P:  6JUL2021 135237    37.0N   21.0E 3.0-4.8 AAAAA  No. Greece                 

 

NEIC reported this earthquake of M 4.3 in Southern Greece was felt with intensity II-III in the area(s) of Southern Greece in Killini, Kalamakion, Makharadon, Pantokrator, Zakinthos and in Kalamakion, Attiki.

 

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

 

SOUTHWEST PACIFIC

 

O:  7JUL2021 15:43:17  24.1S  179.7E mb=4.5  EMSC   SOUTH OF FIJI ISLANDS        

P:  4JUL2021 135378    23.0S  179.0E 4.0-5.5 BBAAA  Tonga/Fiji                  

 

O:  8JUL2021 02:38:32  17.9S  178.5W mb=4.2  EMSC   FIJI REGION                  

P: 10JUL2021 135362    19.0S  178.0W 4.0-5.7 ABAAA  Tonga Islands              

 

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

 

OCEAN RIDGES

 

O:  7JUL2021 18:39:23  53.0S   21.7E mb=5.0  EMSC   SOUTH OF AFRICA              

P:  9JUL2021 135396    53.0S   19.0E 4.0-5.6 AABAA  Atlantic-Indian Ridge      

 

O: 08JUL2021 07:09:18  55.9S   26.5W Mw=5.0  EMSC   SOUTH SANDWICH ISLANDS REGION

O:  7JUL2021 23:07:24  58.0S   24.6W mb=5.0  EMSC   SOUTH SANDWICH ISLANDS REGION

O:  7JUL2021 18:24:18  55.9S   26.4W mb=5.1  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  7JUL2021 135398    56.0S   28.0W 4.0-6.0 AAAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  7JUL2021 10:55:38  31.0S  117.2E ML=2.6  EMSC   WESTERN AUSTRALIA            

P: 10JUL2021 135380    30.0S  118.0E 2.0-3.4 BAAAA  Central Australia          

 

JAPAN AND KURIL ISLANDS

 

O:  7JUL2021 14:55:37  28.1N  128.1E mb=4.6  EMSC   RYUKYU ISLANDS, JAPAN        

P:  4JUL2021 135201    27.0N  130.0E 4.0-5.6 BBBAA  Kyushu Japan               

 

O:  7JUL2021 16:24:36  33.7N  132.3E mb=4.5  EMSC   SHIKOKU, JAPAN               

O:  7JUL2021 17:39:30  34.1N  132.9E ML=4.0  EMSC   WESTERN HONSHU, JAPAN        

P:  7JUL2021 135232    31.0N  131.0E 3.5-4.9 ACAAA  Kyushu, Japan area         

 

NEIC reported this earthquake of M 4.5 in Shikoku, Japan was felt with intensity II-III in the area(s) of Shikoku, Japan at Yamaguchi.

 

O:  7JUL2021 17:02:32  37.2N  135.0E mb=5.0  EMSC   SEA OF JAPAN                 

P:  6JUL2021 135238    37.0N  135.0E 3.5-5.1 AAAAA  No. Honshu, Japan          

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  7JUL2021 20:59:05  33.3N  116.2W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P:  6JUL2021 135253    33.7N  116.1W 2.5-4.8 AAAAA  So. California             

 

O:  7JUL2021 17:25:10  33.9N  117.7W Ml=2.3  EMSC   GREATER LOS ANGELES AREA, CALI

P:  6JUL2021 135255    33.8N  117.7W 2.5-5.0 AAAAA  So. California             

 

O:  7JUL2021 22:47:02  34.2N  116.4W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P:  8JUL2021 135253    33.9N  116.9W 2.5-4.9 AAAAA  So. California             

 

O:  7JUL2021 10:56:16  34.4N  119.9W Ml=2.2  EMSC   SANTA BARBARA CHANNEL, CALIF.

P:  5JUL2021 135259    34.9N  119.0W 2.5-4.8 AAAAA  So. California             

 

O:  8JUL2021 00:16:13  36.6N  121.2W Md=2.4  EMSC   CENTRAL CALIFORNIA           

P:  6JUL2021 135220    36.7N  121.4W 2.5-4.6 AAAAA  Central California         

 

O:  7JUL2021 12:40:56  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA          

P:  9JUL2021 135222    38.7N  122.7W 2.5-4.4 AAAAA  Central California         

 

ALASKA

 

O:  8JUL2021 05:21:11  57.9N  156.8W mb=4.2  EMSC   ALASKA PENINSULA             

P:  6JUL2021 135315    56.8N  158.7W 3.5-5.2 AABAA  Alaska Peninsula           

 

O: 07JUL2021 08:19:06  61.4N  146.7W ML=3.3  EMSC   SOUTHERN ALASKA

O:  7JUL2021 20:31:25  60.9N  146.3W ML=3.9  EMSC   SOUTHERN ALASKA              

P:  5JUL2021 135339    60.6N  147.6W 3.2-5.1 AAAAA  Central Alaska             

 

NEIC reported this earthquake of M 3.7 in Southern Alaska was felt with intensity II-III in the area(s) of Southern Alaska at Valdez.

 

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:  7JUL2021 13:05:31  31.6N  104.3W ML=3.3  EMSC   WESTERN TEXAS                

P:  9JUL2021 135247    31.6N  103.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

O:  7JUL2021 17:30:13  37.4N  112.5W Ml=2.1  EMSC   UTAH                         

P:  6JUL2021 135271    38.7N  112.6W 2.0-4.0 ABAAA  Utah area                  

 

EASTERN U.S./CANADA

 

O: 07JUL2021 10:44:52  35.1N   95.4W ML=2.2  EMSC   OKLAHOMA

O: 07JUL2021 20:09:16  35.1N   96.3W ML=2.3  EMSC   OKLAHOMA

O:  7JUL2021 10:44:52  35.1N   95.4W ML=2.2  EMSC   OKLAHOMA                     

P:  4JUL2021 135267    34.0N   96.0W 2.0-4.1 BBAAA  Southern Plains            

 

O:  7JUL2021 05:51:15  45.9N   75.7W MB=1.8  ECAN Val-des-Bois, QC               

O:  7JUL2021 00:28:40  45.7N   76.7W MB=2.1  ECAN Shawville, QC                  

P:  7JUL2021 135291    45.0N   75.0W 2.0-4.4 AAAAA  New York State             

 

HAWAII

 

O:  7JUL2021 17:40:57  19.9N  156.7W ML=4.2  EMSC   HAWAII REGION, HAWAII        

P:  5JUL2021 135199    20.1N  156.1W 4.0-5.5 AAAAA  Hawaii area