DEADLY EARTHQUAKES STRIKE AT CENTRAL PHILIPPINES

 

EARTHQUAKE SUMMARY FOR APRIL 22, 2019

 

Global seismic quiet came to an end today with earthquakes of M 6.1 and 6.4 in the Central Philippines; an M 6.0 in the South Sandwich Islands and moderately large events of M 5.4-5.6 in Vancouver, British Columbia, Canada; off the coast of northern Honshu, Japan and in Oaxaca, Mexico. Seismicity in California also  showed a moderate increase at this time with an M 3.9 in the Imperial Valley region of southern California.

 

A pair of strong earthquakes of M 6.1 and 6.4 hit the Luzon, Central Philippines about 60 km NW of Manila and Samar Island, Leyte today. Initial reports indicated the first of these killed at least 16. Five people died when a five-story supermarket collapsed (pancaked) on the store. Electricity was cut to prevent fires.  Many people were crushed beneath collapsing building in the Pampanga Province and at least 24 are still missing. Landslides block roads as boulders rolled down mountain sides and most public transportation was suspended. The second earthquake in Samar was reported to have damaged homes and roadways as well. This event was located about 75 km from Tacloban City, which has a population of about a quarter million. In Samar, at least five houses were destroyed in the city of Catbalogan. Three dams in the Central Philippines sustained damage. No tsunami was expected nor observed with either of these earthquakes.

 

While the earthquake in Samar was probably triggered by stress redistribution following the Luzon quake, tidal promotion cannot be completely dismissed.  The Samar earthquake occurred new local solar noon when tidal stresses maximize. It also occurred at 11N latitude when the sun was directly overhead at local solar noon (subsolar). This enhanced vertical stresses and probably helped promote the second earthquake as noted in previous issues of this report:

 

"The full moon arrived at 11:12 UT on April 19, 2019. Longitudes which were sub-solar at this time were near 15 East and 165 West. These include areas of central and western Europe in the east and the Aleutian Islands and western Alaska in the West. Other areas which may see enhanced tidal promotion at this time are the Kermadec-Tonga arc north to Samoa. While these regions will experience maximum stress from the tidal alignment, many other areas could see enhanced seismicity in the next five days and a strong earthquake is likely in this time period." (April 19-22, 2019)

 

NEIC reported major damage in the Luzon quake with intensity up to IX. VIII was reported from Central Luzon at Del Carmen with VII in Bodega, Calangain, Guta, Hermosa, Lubao and VI in San Benito, Irani and San Basilio, Central Luzon and as far as 150 km from the epicenter with intensity up to IV. PHIVOLCS reported it was felt with intensity VI - San Marcelino, and Subic, Zambales; Floridablanca, Lubao, and Porac, Pampanga; Angeles City; Olongapo City; Intensity V - Castillejos, and San Felipe, Zambales; Magalang, Mexico, and San Fernando, Pampanga; Abucay, Balanga, and Mariveles, Bataan; Malolos, and Obando, Bulacan; Indang, Cavite; Lipa City; Makati City; Mandaluyong City; Manila City; Quezon City; Pasay City; San Juan City; Taguig City; Tarlac City; Valenzuela City; Intensity IV - Meycauayan, Plaridel, and San Jose Del Monte, Bulacan; San Rafael, Tarlac; Rosales and Villasis, Pangasinan; Itogon, and La Trinidad, Benguet; Kasibu, Nueva Vizcaya; Gabaldon, Nueva Ecija; San Mateo, Rizal; Bacoor, Imus, and Maragondon, Cavite; Nasugbu, Batangas; Antipolo City; Baguio City; Caloocan City; Las Pi¤as City; Marikina City; Pasig City; Tagaytay City; Intensity III - Marilao, Bulacan; Santo Domingo, and Talavera, Nueva Ecija; Maddela, Quirino; Dingalan, Aurora; Lucban, Quezon; Santa Cruz, Laguna; Carmona, Dasmari¤as, General Trias, and Silang, Cavite; San Nicolas and Talisay, Batangas; Cabanatuan City; Calamba City; Gapan City; Muntinlupa City; Palayan City; Intensity II - Baler, Aurora; Philippines.

 

This was the strongest shallow focus earthquake within about 150 km of Manila and this epicenter since an M 6.2 on October 9, 2003. Intermediate focus events of M 6.1-6.4 hit this area on August 11, 2017 and October 8, 2004 (M 6.2 and 6.4).  Forecast 115059 had expected this activity was likely in mid-April.

 

O: 22APR2019 09:11:11  14.9N  120.5E Mw=6.1  EMSC   LUZON, PHILIPPINES           

O: 22APR2019 09:11:11  14.9N  120.5E mw=6.1  ANSS   ESE of Gutad Philippines

O: 22APR2019 09:11:09  15.2N  120.3E MS=6.1  PHI  Felt with intensity VI

P: 17APR2019 115059    13.0N  122.0E 3.5-5.0 BBBAA  Luzon, Philippines         

 

NEIC reported maximum intensity in the Samar earthquake of VIII (major damage) was felt in Baras, Paranas and Jiabong, with VI in Borongan, Silanga, San Antonio, San Policarpio and Pawing with V in Palo and IV in Catbalogan, Eastern Visayas, Philippines. PHIVOLCS reported the M 6.5 was felt with intensity VI - San Julian, Eastern Samar; Intensity V - Tacloban City; Catbalogan City, Samar; Gen. Mc Arthur, Salcedo and Guiuan Eastern Samar; Naval, Biliran; Catarman, Northern Samar; Palo and Pastrana, Leyte; Intensity IV - Abuyog, Hilongos, Javier, Capoocan, Julieta, Baybay, Barogo, Jaro, MacArthur, Matalum, Villaba, Leyte; San Francisco, Southern Leyte; Bislig City, Surigao Del Sur; Iloilo City; Naga City; Sorsogon City; Panganiban, Catanduanes; Intensity III - Binalbagan, Negros Occidental; Cabalian, Southern Leyte; Dimasalang, Masbate; Butuan City; Cabadbaran City; Intensity II - Bago City; Bacolod City; Samar, Philippines.

An aftershock of 4.6 was reported by PHIVOLCS to have been felt with intensity II in Catarman, Northern Samar; Leyte, Leyte, Philippines.

 

The last earthquake in Samar within about 150 km of this epicenter with M>=6.5 occurred on April 21, 1995 with M 6.8 and 7.1. An M 6.5 hit the area northeast of this on November 18, 2003.  Forecast 115059 had expected today's activity around April 16.

 

O: 23APR2019 06:41:14  11.7N  125.2E mb=4.8  EMSC   SAMAR, PHILIPPINES           

O: 23APR2019 05:37:51  11.8N  125.3E MS=6.5  PHI  Felt with intensity VI

O: 23APR2019 06:41:12  11.9N  125.3E MS=4.6  PHI  Felt with intensity II

O: 23APR2019 05:37:53  11.8N  125.2E Mw=6.4  EMSC   SAMAR, PHILIPPINES           

P: 16APR2019 115059    12.0N  124.0E 3.5-5.1 CAAAA  Luzon, Philippines         

 

An earthquake of M 6.0 also occurred today in the South Sandwich Islands continuing strong seismicity in that area this month which has included events of M 6.5 on April 5 and 9 and M 5.5 on April 16. None of these events have been reported felt in this remote area. Today's event occurred near local solar noon and may have been promoted by high tidal stresses. Forecast 115291 had expected this activity in the South Sandwich Islands around April 18-20.

 

O: 22APR2019 14:49:07  56.3S   27.5W Mw=6.0  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 18APR2019 115291    56.0S   26.0W 4.0-5.6 BAAAA  So. Sandwich Islands       

P: 20APR2019 115291    55.0S   29.0W 4.0-5.7 ABAAA  So. Sandwich Islands       

 

The strongest earthquake in the U.S. or Canada today was an M 5.5 in the Vancouver Island area of British Columbia, Canada NEIC reported it was lightly felt in Port Hardy, B.C. and in Walnut Grove and Nanaimo, B.C. and as far as Bellingham, Washington. The M 5.5 was preceded about an hour earlier by an M 4.9. These events occurred within about an hour of local solar noon and were probably promoted by high tidal stresses associated with the full moon. The last earthquake within about  150 km of today's epicenter with M>=5.5 in the Vancouver Island region occurred with M 6.5 on October 22, 2018 and prior to that an M 5.5 on March 18, 2016 more that three years ago. Forecast 115209 had expected a moderately large quake was possible in this area in mid-April. This epicenter is at 102 degrees from the M 6.8 in Sulawesi of April 12, the last major earthquake in the world and was probably promoted by concentrated energy from that source.

 

O: 22APR2019 21:44:44  50.3N  130.2W Mw=5.5  EMSC   VANCOUVER ISLAND, CANADA REGIO

O: 22APR2019 21:44:45  50.3N  130.1W mw=5.5  ANSS   Port Hardy Canada

O: 22APR2019 20:26:59  50.4N  130.0W Mw=4.9  EMSC   VANCOUVER ISLAND, CANADA REGIO

P: 16APR2019 115209    50.7N  130.5W 3.0-5.2 CAAAA  British Colombia           

 

A moderately strong earthquake of M 5.4 also rocked areas of Central Mexico today. This event in Oaxaca State was felt with intensity II-III as far as 400 km from the epicenter (NEIC) at Oaxaca, Tlaxcatancingo, Puebla, Tres Marias, Zacamulpa, Mexico City And Naucalpan, Mexico among others.  An earthquake of M 4.3 in eastern Oaxaca occurred earlier in the day. This event was reported by NEIC to have been felt with intensity IV in Xadani, Oaxaca and II-III in Huatulco, Pochutta, Oaxaca, Mexico. The M 5.4 is the strongest within about 100 km of this epicenter since an M 5.9 on February 19, 2018, an aftershock of an M 7.2 on February 16, 2018.  Forecast 115068 had expected this activity within about 100 km was likely around April 19.

 

O: 22APR2019 16:29:45  15.9N   98.8W ML=4.1  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 18:00:01  15.9N   98.8W ML=4.5  EMSC   OFFSHORE GUERRERO, MEXICO

O: 23APR2019 05:46:03  16.0N   98.7W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO

O: 23APR2019 05:30:42  16.0N   98.7W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 22APR2019 21:49:04  16.0N   98.7W ML=4.1  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 23:22:39  16.0N   98.7W ML=4.1  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 21:46:42  16.1N   98.7W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 17:56:50  16.1N   98.7W ML=4.3  EMSC   OFFSHORE GUERRERO, MEXICO

O: 23APR2019 06:32:19  16.3N   98.5W ML=4.1  EMSC   OAXACA, MEXICO

O: 22APR2019 20:15:26  16.4N   98.4W Mw=5.4  EMSC   OAXACA, MEXICO

O: 22APR2019 20:45:27  16.4N   98.5W mb=4.5  EMSC   GUERRERO, MEXICO             

P: 19APR2019 115068    17.0N   98.0W 3.5-5.3 BAAAA  Oaxaca, Mexico              

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O: 22APR2019 22:33:15  51.4N  160.1E mb=4.2  EMSC   OFF EAST COAST OF KAMCHATKA  

O: 22APR2019 17:53:58  51.4N  160.4E mb=4.5  EMSC   OFF EAST COAST OF KAMCHATKA  

O: 22APR2019 23:00:14  51.8N  159.4E mb=4.7  EMSC   OFF EAST COAST OF KAMCHATKA  

P: 18APR2019 115213    51.0N  158.0E 4.0-5.9 BAAAA  Kamchatka                   

 

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

 

INDONESIA AND PHILIPPINES

 

O: 23APR2019 00:10:12   0.0S  124.4E ML=4.0  EMSC   MOLUCCA SEA                  

P: 19APR2019 115022     0.0N  125.0E 4.0-5.6 BAAAA  Mindanao, Philippines      

 

O: 23APR2019 05:15:24   0.9S  131.2E ML=4.2  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 19APR2019 115029     3.0S  129.0E 4.0-5.4 BCBAA  Ceram area                 

 

O: 22APR2019 09:06:28   1.8S  122.3E ML=4.5  EMSC   SULAWESI, INDONESIA          

O: 22APR2019 13:52:16   1.9S  122.7E mb=4.6  EMSC   SULAWESI, INDONESIA          

O: 22APR2019 10:01:13   2.1S  122.5E ML=4.0  EMSC   SULAWESI, INDONESIA          

O: 22APR2019 13:52:17  01.8S  122.6E MS=4.5  BMG  Felt with intensity II-III

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 CAAAA  Sulawesi area              

 

BMG reported this earthquake was felt with intensity II-III in Morowali, Sulawesi, Indonesia.

 

O: 22APR2019 19:28:58   2.9S  140.3E ML=4.0  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 14APR2019 115040     4.0S  142.0E 4.0-5.4 CBBAA  Papua New Guinea           

 

O: 23APR2019 04:17:07   3.4N   97.5E ML=4.5  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 20APR2019 115024     1.0N   98.0E 4.0-5.5 BCAAA  So. Sumatera                

 

O: 22APR2019 07:05:08   5.0S  103.0E ML=4.4  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 17APR2019 115043     5.0S  103.0E 4.0-5.5 BAAAA  So. of Sumatera            

 

O: 22APR2019 18:47:42   7.1S  124.8E ML=4.2  EMSC   BANDA SEA                    

P: 21APR2019 115031     8.0S  124.0E 4.0-5.4 AAAAA  Flores Island area         

 

O: 23APR2019 06:41:14  11.7N  125.2E mb=4.8  EMSC   SAMAR, PHILIPPINES           

O: 23APR2019 05:37:51  11.8N  125.3E MS=6.5  PHI  Felt with intensity VI

O: 23APR2019 06:41:12  11.9N  125.3E MS=4.6  PHI  Felt with intensity II

O: 23APR2019 05:37:53  11.8N  125.2E Mw=6.4  EMSC   SAMAR, PHILIPPINES           

P: 16APR2019 115059    12.0N  124.0E 3.5-5.1 CAAAA  Luzon, Philippines         

 

O: 22APR2019 21:42:33  11.8N  143.5E mb=4.9  EMSC   SOUTH OF MARIANA ISLANDS     

P: 12APR2019 115072    13.0N  144.0E 4.0-5.6 CBAAA  So. Marianas/Guam          

 

O: 22APR2019 09:11:11  14.9N  120.5E Mw=6.1  EMSC   LUZON, PHILIPPINES           

O: 22APR2019 09:11:11  14.9N  120.5E mw=6.1  ANSS   ESE of Gutad Philippines

O: 22APR2019 09:11:09  15.2N  120.3E MS=6.1  PHI  Felt with intensity VI

P: 17APR2019 115059    13.0N  122.0E 3.5-5.0 BBBAA  Luzon, Philippines         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 22APR2019 18:55:55  13.0N   89.8W ML=4.0  EMSC   OFFSHORE EL SALVADOR         

P: 21APR2019 115052    14.0N   89.0W 3.5-5.3 AAAAA  Coast of Central America   

 

O: 23APR2019 04:18:56  14.3N   93.8W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 23APR2019 05:26:56  14.3N   94.0W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 22APR2019 09:17:06  14.4N   93.8W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 23APR2019 05:45:33  14.4N   93.9W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO

O: 22APR2019 11:04:53  13.9N   92.1W ML=4.2  EMSC   OFFSHORE GUATEMALA           

O: 23APR2019 04:21:03  14.3N   93.8W ML=4.1  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 BAAAA  Chiapas, Mexico            

 

O: 23APR2019 06:10:00  16.2N   95.3W ML=4.2  EMSC   OAXACA, MEXICO                

P: 15APR2019 115051    17.0N   95.0W 3.5-5.3 CAAAA  Chiapas, Mexico            

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 BBAAA  Chiapas, Mexico            

 

O: 22APR2019 10:19:55  16.4N   96.0W mb=4.3  EMSC   OAXACA, MEXICO                

P: 14APR2019 115068    16.0N   96.0W 3.5-5.4 CAAAA  Oaxaca, Mexico             

 

O: 22APR2019 20:45:27  16.4N   98.5W mb=4.5  EMSC   GUERRERO, MEXICO             

P: 19APR2019 115068    17.0N   98.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

O: 23APR2019 03:10:00  17.5S   71.1W ML=4.0  EMSC   NEAR COAST OF SOUTHERN PERU  

P: 20APR2019 115253    16.0S   70.0W 4.0-5.7 BBAAA  So. Peru/Bolivia           

 

O: 22APR2019 07:24:41  17.8N  101.0W ML=4.2  EMSC   GUERRERO, MEXICO             

P: 15APR2019 115062    17.0N  101.0W 3.5-5.4 CAAAA  Michoacan, Mexico          

 

O: 22APR2019 18:32:46  17.9N   69.3W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 BBAAA  Puerto Rico                

 

O: 22APR2019 08:48:09  17.9N  102.0W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 20APR2019 115062    19.0N  104.0W 3.5-5.1 ABBAA  Michoacan, Mexico          

 

O: 22APR2019 07:24:42  18.4N   68.2W Md=3.1  EMSC   MONA PASSAGE, DOMINICAN REPUBL

P: 19APR2019 115071    19.0N   68.0W 3.4-5.3 BAAAA  Puerto Rico                

 

O: 23APR2019 02:05:57  18.5N   72.7W ML=3.1  EMSC   HAITI REGION                 

P: 14APR2019 115075    20.0N   72.0W 3.0-4.6 CBAAA  Bahamas/No. Caribbean      

 

O: 23APR2019 01:09:10  18.7N   68.2W Md=3.1  EMSC   DOMINICAN REPUBLIC REGION    

O: 23APR2019 01:56:11  18.8N   67.9W MD=3.1  EMSC   DOMINICAN REPUBLIC REGION    

P: 19APR2019 115071    19.0N   68.0W 3.4-5.3 BAAAA  Puerto Rico                

 

O: 22APR2019 15:00:25  19.4N   69.0W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 23APR2019 05:47:53  19.5N   65.6W Md=3.3  EMSC   PUERTO RICO REGION           

P: 19APR2019 115075    20.0N   65.0W 3.0-4.4 AAAAA  Bahamas/No. Caribbean      

 

O: 22APR2019 22:37:27  19.8N   70.0W ML=3.2  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 22APR2019 12:55:39  24.2S   67.5W ML=4.0  EMSC   SALTA, ARGENTINA             

O: 22APR2019 18:29:53  24.3S   67.1W Mw=5.1  EMSC   SALTA, ARGENTINA             

P: 19APR2019 115263    23.0S   69.0W 4.0-5.6 BBBAA  Coast No. Chile            

 

 

 

O: 22APR2019 16:29:45  15.9N   98.8W ML=4.1  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 18:00:01  15.9N   98.8W ML=4.5  EMSC   OFFSHORE GUERRERO, MEXICO

O: 23APR2019 05:46:03  16.0N   98.7W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO

O: 23APR2019 05:30:42  16.0N   98.7W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO

O: 22APR2019 21:49:04  16.0N   98.7W ML=4.1  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 23:22:39  16.0N   98.7W ML=4.1  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 21:46:42  16.1N   98.7W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO

O: 22APR2019 17:56:50  16.1N   98.7W ML=4.3  EMSC   OFFSHORE GUERRERO, MEXICO

O: 23APR2019 06:32:19  16.3N   98.5W ML=4.1  EMSC   OAXACA, MEXICO

O: 22APR2019 20:15:26  16.4N   98.4W Mw=5.4  EMSC   OAXACA, MEXICO

O: 22APR2019 20:45:27  16.4N   98.5W mb=4.5  EMSC   GUERRERO, MEXICO             

P: 19APR2019 115068    17.0N   98.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

AFRICA AND EUROPE

 

O: 22APR2019 19:36:39  37.1N   28.7E mb=4.3  EMSC   WESTERN TURKEY               

P: 19APR2019 115151    38.0N   29.0E 3.5-5.1 BAAAA  Turkey                      

 

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

 

SOUTHWEST PACIFIC

 

O: 22APR2019 13:11:39  15.2S  173.4W mb=4.9  EMSC   TONGA                        

P: 18APR2019 115250    15.0S  173.0W 4.0-5.6 BAAAA  Samoa Islands               

 

O: 22APR2019 12:30:30  17.5S  178.7W mb=4.9  EMSC   FIJI REGION                  

O: 22APR2019 11:13:09  19.4S  177.7W mb=4.6  EMSC   FIJI REGION                  

P: 18APR2019 115257    19.0S  175.0W 4.0-5.8 BABAA  Tonga Islands               

 

O: 23APR2019 04:52:03  20.0S  173.6W mb=5.2  EMSC   TONGA                        

P: 17APR2019 115270    21.0S  175.0W 4.0-5.6 CAAAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 23APR2019 00:36:54  21.6N   62.0E mb=4.7  EMSC   OWEN FRACTURE ZONE REGION    

P:  8APR2019 114830    27.0N   56.0E 3.5-5.4 DCCAA  So. Iran/Persian Gulf      

 

O: 22APR2019 14:49:07  56.3S   27.5W Mw=6.0  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 18APR2019 115291    56.0S   26.0W 4.0-5.6 BAAAA  So. Sandwich Islands        

P: 20APR2019 115291    55.0S   29.0W 4.0-5.7 ABAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 22APR2019 14:20:11  39.2S  175.0E mb=4.5  EMSC   NORTH ISLAND OF NEW ZEALAND  

P: 17APR2019 115284    40.0S  176.0E 3.0-4.6 BAAAA  North Island, N.Z.         

 

NEIC reported this earthquake of M 4.5 in North Island, New Zealand was felt with intensity II-III in the area(s) of Feilding, Manawatu-Wanganui, New Zealand.

 

JAPAN AND KURIL ISLANDS

 

O: 22APR2019 22:49:31  31.0N  131.4E mb=4.5  EMSC   KYUSHU, JAPAN                

P: 18APR2019 115115    32.0N  132.0E 3.5-4.9 BAAAA  Kyushu, Japan area         

 

O: 22APR2019 16:00:35  31.3N  141.0E mb=4.7  EMSC   IZU ISLANDS, JAPAN REGION    

P: 17APR2019 115124    31.0N  140.0E 4.0-5.4 BAAAA  Off East Coast Honshu      

 

O: 22APR2019 17:45:19  40.7N  143.7E Mw=5.4  EMSC   OFF EAST COAST OF HONSHU, JAPA

P: 17APR2019 115125    39.0N  142.0E 4.0-5.5 BBBAA  Off East Coast Honshu      

 

NEIC reported this earthquake of M 5.4 off northern Honshu, Japan  was felt with intensity II-III in the area(s) of Misawa, Aomori, Japan.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 23APR2019 03:24:03  32.9N  115.5W ML=3.9  EMSC   SOUTHERN CALIFORNIA

O: 23APR2019 04:31:26  32.9N  115.5W Ml=2.0  EMSC   SOUTHERN CALIFORNIA

O: 23APR2019 01:27:19  32.9N  115.5W Ml=2.1  EMSC   SOUTHERN CALIFORNIA

O: 23APR2019 05:29:59  32.9N  115.5W Ml=2.2  EMSC   SOUTHERN CALIFORNIA

O: 23APR2019 03:52:54  32.9N  115.5W Ml=2.4  EMSC   SOUTHERN CALIFORNIA

O: 23APR2019 03:11:58  32.2N  115.1W Ml=2.7  EMSC   BAJA CALIFORNIA, MEXICO      

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 CAAAA  So. California             

 

NEIC reported this earthquake of M 3.9 in Southern California was felt with intensity IV in Brawley and II-III in the area(s) of California at Imperial, El Centro, Holtville, Westmorland, Calexico, Niland and in Calexico, Baja California, Mexico.

 

O: 22APR2019 22:19:19  31.9N  117.2W ML=3.4  EMSC   OFFSHORE BAJA CALIFORNIA, MEXI

P: 21APR2019 115135    33.4N  116.7W 2.5-4.4 ABAAA  So. California             

 

NEIC reported this earthquake of M 3.4 off Southern California  was felt with intensity II-III in the area(s) of Tijuana, Baja Mexico and San Diego, California.

 

O: 23APR2019 03:11:58  32.2N  115.1W Ml=2.7  EMSC   BAJA CALIFORNIA, MEXICO      

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 CAAAA  So. California             

 

O: 22APR2019 09:44:54  33.0N  117.7W Ml=2.2  EMSC   GULF OF SANTA CATALINA, CALIF.

P: 19APR2019 115136    33.8N  117.7W 2.5-4.6 BAAAA  So. California             

 

O: 22APR2019 08:26:41  34.3N  120.1W Ml=2.2  EMSC   SANTA BARBARA CHANNEL, CALIF.

P: 18APR2019 115140    35.0N  119.2W 2.5-4.5 BAAAA  So. California             

 

O: 22APR2019 08:13:16  35.4N  118.6W Ml=2.6  EMSC   CENTRAL CALIFORNIA           

P: 21APR2019 115142    35.3N  118.6W 2.5-4.6 AAAAA  So. California             

 

NEIC reported this earthquake of M 3.3 in Central California was felt with intensity IV in Bodfish, California and II-III in the area(s) of Caliente, Tehachapi, Bakersfield, and Kernville, California.

 

O: 22APR2019 16:02:32  37.0N  122.1W Md=2.3  EMSC   NORTHERN CALIFORNIA          

P: 17APR2019 115101    37.3N  121.6W 2.5-4.4 BAAAA  Central California         

 

O: 22APR2019 21:59:20  37.2N  117.4W ml=2.0  EMSC   NEVADA                       

O: 22APR2019 22:01:13  37.2N  117.4W ml=2.1  EMSC   NEVADA                       

P: 17APR2019 115096    37.4N  117.2W 2.5-4.4 BAAAA  California/Nevada area     

 

O: 22APR2019 17:28:50  37.2N  118.3W ml=2.2  EMSC   CENTRAL CALIFORNIA           

P: 20APR2019 115098    37.9N  118.2W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 22APR2019 12:12:21  38.8N  122.8W Md=2.4  EMSC   NORTHERN CALIFORNIA          

P: 18APR2019 115102    38.9N  122.8W 2.5-4.4 BAAAA  Central California         

 

 

ALASKA

 

O: 22APR2019 12:28:17  51.3N  178.1W ml=3.6  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 19APR2019 115206    51.9N  179.8W 3.5-4.9 BAAAA  Andreanoff Isls, Aleutians 

 

O: 22APR2019 07:50:04  56.1N  149.2W ml=3.0  EMSC   GULF OF ALASKA               

P: 16APR2019 115226    55.1N  149.4W 3.2-5.1 CAAAA  Gulf of Alaska             

 

O: 22APR2019 10:51:27  59.6N  151.7W ml=3.2  EMSC   KENAI PENINSULA, ALASKA      

P: 16APR2019 115232    61.0N  151.4W 3.2-5.0 CBAAA  Central Alaska              

 

NEIC reported this earthquake of M 3.2 in the Kenai Peninsula, Alaska was felt with intensity II-III in the area(s) of Homer, Alaska.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 22APR2019 21:44:44  50.3N  130.2W Mw=5.5  EMSC   VANCOUVER ISLAND, CANADA REGIO

O: 22APR2019 21:44:45  50.3N  130.1W mw=5.5  ANSS   Port Hardy Canada

O: 22APR2019 20:26:59  50.4N  130.0W Mw=4.9  EMSC   VANCOUVER ISLAND, CANADA REGIO

P: 16APR2019 115209    50.7N  130.5W 3.0-5.2 CAAAA  British Colombia           

 

ROCKY MOUNTAINS REGION

 

O: 23APR2019 00:57:31  36.0N  114.1W ml=2.2  EMSC   ARIZONA                      

P: 13APR2019 115155    37.0N  113.8W 2.0-3.9 CAAAA  Utah area                  

 

EASTERN U.S./CANADA

 

O: 23APR2019 01:09:10  36.3N   89.5W ML=2.4  EMSC   TENNESSEE                    

P: 20APR2019 115118    36.9N   89.2W 2.0-4.1 BAAAA  New Madrid area            

 

O: 22APR2019 12:23:50  35.4N   84.9W Md=2.3  EMSC   EASTERN TENNESSEE            

P: 16APR2019 115112    35.0N   84.0W 2.0-4.1 BAAAA  Kentucky/Tennessee/NC      

 

O: 22APR2019 22:06:52  38.1N   98.0W mb=2.3  EMSC   KANSAS                       

P: 19APR2019 115149    38.0N   98.0W 2.0-3.9 BAAAA  Southern Plains            

 

O: 22APR2019 22:08:57  42.5N   70.6W ml=1.7  ANSS   SSE of Gloucester Massachusett

P: 12APR2019 115181    42.0N   71.0W 2.0-4.2 CAAAA  New England                

 

O: 18APR2019 06:28:19  47.1N   68.0W MB=2.1  ECAN St. Leonard, NB                

P: 17APR2019 115174    47.0N   70.0W 2.0-4.2 AABAA  Maine                       

 

HAWAII

 

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

 

TIDAL STRESSES, OTHER PROMOTERS MAY BRING ENHANCED GLOBAL SEISMICITY

 

EARTHQUAKE SUMMARY FOR APRIL 21, 2019

 

The current lull in global seismicity continued today. A geomagnetic storm is on the horizon and two ocean storms show promise to become tropical cyclones. This activity is likely to combine with the full moon tides to promote enhanced seismicity as noted in previous summaries:

 

"The full moon will arrive at 11:12 UT on April 19, 2019. Longitudes which are sub-solar at this time are near 15 East and 165 West. These include areas of central and western Europe in the east and the Aleutian Islands and western Alaska in the West. Other areas which may see enhanced tidal promotion at this time are the Kermadec-Tonga arc north to Samoa. While these regions will experience maximum stress from the tidal alignment, many other areas could see enhanced seismicity in the next five days and a strong earthquake is likely in this time period." (April 19-22, 2019)

 

The strongest earthquake in the world today occurred in the Tonga/Fiji zone and was likely promoted by tidal stresses. This event of M 5.4 southeast of the Loyalty Islands was somewhat unusual. The last earthquake of M>=5.4 within about 250 km of this epicenter occurred nearly two years ago as an M 5.7 on July 8, 2017. A strong M 7.2 hit the area about 200 km to the west on August 12, 2016. Forecast 115264 had expected regional seismicity in the Loyalty Islands in mid April.

 

O: 22APR2019 04:38:03  22.1S  170.0E mb=4.7  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

O: 21APR2019 09:24:41  22.1S  174.9E Mw=5.4  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 16APR2019 115264    23.0S  170.0E 4.0-5.8 BAAAA  Loyalty Islands            

 

An earthquake of M 4.5 continued the activity in the Mayotte region east of Africa today. The current Mayotte series began a year ago on May 13, 2018i with an M 5.1. The last event of M>=4.5 in the area was an M 5.0 on April 5, 2019. Forecast 115248 had expected activity in the region was likely around April 22. A new tropical cyclone to the northeast of this may have helped promote today's activity as noted in this summary:

 

"A tropical cyclone may be forming in the area north of Madagascar. This system is currently located near 10S 51E with winds up to 30 kts and moving westward at 6 kts. The area of Mayotte may be active as this storm approaches." (April 21-22, 2019)

 

NEIC reported this earthquake of M 4.5 in Mayotte was felt with intensity II-III in the area(s) of Mamoudzou, Mayotte.

 

O: 22APR2019 04:27:43  12.8S   45.4E mb=4.5  EMSC   MAYOTTE REGION               

P: 18APR2019 115248    14.0S   44.0E 3.0-4.4 BBBAA  Madagascar area            

 

The strongest earthquakes in the U.S. or Canada today occurred in Central  Alaska and in Central California with M 3.4-3.5. The M 3.4 in Central Alaska

was felt lightly in the epicentral area.  It is the strongest event within about 150 km of this epicenter since an M 3.7 on January 17, 2019 and prior to that an M 3.6 on November 30, 2018. These occurred about 150 km north of today's epicenter. Forecast 115234 had expected today's activity within about 25 km of the epicenter was likely around April 19.

 

O: 22APR2019 02:04:32  62.7N  148.7W ML=3.4  EMSC   CENTRAL ALASKA               

P: 19APR2019 115234    62.8N  149.1W 3.2-4.9 BAAAA  Central Alaska              

 

The M 3.5 in Central California was felt widely in the area.  NEIC reported this earthquake of M 3.5 in Central California was felt with intensity IV in Carmel Valley,  California and II-III in the area(s) of California at Gonzales, Soledad, Paicines, Hollister, Salinas, San Juan Bautista, Greenfield.  This is the strongest earthquake within about 50 km of this epicenter in nearly half a year - since an M 3.6 and 4.1 on November 2, 2018. Events of M 3.5 hit the area on November 10, 2018, an aftershock of the November 2 event and with M 3.8 on October 5, 2018, a foreshock, the only such events in the past year. Forecast 115100 had expected today's event within about 25 km of this epicenter was likely in mid-April.

 

O: 22APR2019 05:45:09  36.6N  121.2W Ml=3.5  EMSC   CENTRAL CALIFORNIA           

P: 16APR2019 115100    36.7N  121.4W 2.5-4.4 CAAAA  Central 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: 21APR2019 14:18:11  36.6N   71.0E mb=4.2  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 15APR2019 115109    36.0N   70.0E 3.8-5.2 CAAAA  Hindu Kush/Pakistan        

 

O: 22APR2019 00:47:44  43.0N  133.6E mb=4.4  EMSC   PRIMOR'YE, RUSSIA            

P: 18APR2019 115120    37.0N  139.0E 3.5-4.9 BCCAA  No. Honshu, Japan          

 

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

 

INDONESIA AND PHILIPPINES

 

O: 21APR2019 19:37:20   0.2S  123.4E ML=4.0  EMSC   SULAWESI, INDONESIA          

O: 21APR2019 06:57:42   1.9S  122.6E ML=4.5  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 BAAAA  Sulawesi area              

 

O: 21APR2019 23:17:48   2.3N   95.2E ML=4.2  EMSC   SIMEULUE, INDONESIA          

P: 17APR2019 115023     2.0N   93.0E 4.0-5.6 BABAA  Nicobar Islands            

 

O: 21APR2019 12:19:22   2.7N   99.0E ML=4.0  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 20APR2019 115024     1.0N   98.0E 4.0-5.5 ABAAA  So. Sumatera               

 

O: 21APR2019 08:21:47   3.4S  127.3E mb=4.9  EMSC   SERAM, INDONESIA             

P: 19APR2019 115029     3.0S  129.0E 4.0-5.4 AABAA  Ceram area                 

 

O: 22APR2019 06:49:51   9.1S  117.5E mb=4.7  EMSC   SUMBAWA REGION, INDONESIA    

P: 19APR2019 115046     8.0S  118.0E 4.0-5.4 BBAAA  Sumbawa Island area        

 

O: 21APR2019 22:10:40  14.0N  144.6E mb=4.5  EMSC   GUAM REGION                  

P: 12APR2019 115072    13.0N  144.0E 4.0-5.6 CAAAA  So. Marianas/Guam          

 

O: 21APR2019 11:16:57  20.0N  121.4E mb=4.6  EMSC   BABUYAN ISL REGION, PHILIPPINE

P: 20APR2019 115090    20.0N  121.0E 4.0-5.4 AAAAA  Taiwan                     

 

O: 22APR2019 03:59:57   9.7N  126.5E mb=4.7  EMSC   MINDANAO, PHILIPPINES        

P: 14APR2019 115059    10.0N  125.0E 3.5-5.0 CABAA  Luzon, Philippines         

 

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

 

CENTRAL AND SOUTH AMERICA

 

O: 21APR2019 21:42:39  12.7N   88.2W ML=4.1  EMSC   OFFSHORE EL SALVADOR         

P: 21APR2019 115052    14.0N   89.0W 3.5-5.3 ABAAA  Coast of Central America   

 

O: 22APR2019 01:04:53   3.3S   80.4W mb=4.8  EMSC   PERU-ECUADOR BORDER REGION   

P: 19APR2019 115030     1.0S   80.0W 4.0-5.4 BCAAA  Ecuador                    

 

NEIC reported this earthquake of M 4.8 on the Peru-Ecuador border was felt with intensity II-III in the area(s) of Aguas Verdes, Tumbes, OPeru and Santa Lucia, Guayas, Ecuador.

 

O: 21APR2019 08:44:54  15.0N   93.8W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

O: 21APR2019 08:53:36  15.2N   94.5W ML=4.0  EMSC   OFF COAST OF OAXACA, MEXICO  

O: 21APR2019 20:47:59  16.0N   93.0W ML=4.0  EMSC   CHIAPAS, MEXICO              

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 AAAAA  Chiapas, Mexico            

 

O: 21APR2019 13:08:22  16.1N   98.9W ML=4.4  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 19APR2019 115068    17.0N   98.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

 

O: 21APR2019 22:18:14  17.9N   68.5W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

O: 21APR2019 17:18:39  18.0N   68.7W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

O: 21APR2019 15:57:29  18.5N   70.6W ML=3.9  EMSC   DOMINICAN REPUBLIC           

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 22APR2019 06:43:17  19.2N   69.3W ML=3.4  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 21APR2019 11:45:43  19.3N   68.2W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

P: 19APR2019 115071    19.0N   68.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 21APR2019 14:08:09  19.9N   63.8W ML=3.3  EMSC   NORTH OF THE VIRGIN ISLANDS  

P: 21APR2019 115058    19.0N   64.0W 3.0-5.3 AAAAA  Leeward Islands            

 

O: 21APR2019 17:57:38  20.2N   70.3W ML=3.5  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 BBAAA  Puerto Rico                

 

O: 21APR2019 16:31:41  24.3S   67.0W Mw=5.0  EMSC   SALTA, ARGENTINA              

P: 20APR2019 115260    22.0S   67.0W 4.0-5.6 ACAAA  Argentina                  

 

O: 21APR2019 11:46:20  32.4S   70.2W ML=4.1  EMSC   MENDOZA, ARGENTINA           

P: 19APR2019 115278    30.0S   71.0W 4.0-5.4 ACAAA  Coast Central Chile        

 

O: 21APR2019 10:00:10  35.8S   71.9W mb=5.0  EMSC   MAULE, CHILE                 

P: 18APR2019 115275    36.0S   71.0W 4.0-5.8 BAAAA  Central Chile              

 

NEIC reported this earthquake of M 4.9 in Maule, Chile was felt with intensity IV in Maule at Linares, Talca and II-III in the area(s) of Parral, Constitucion, Curico, and in Chillan, Bio-bio and in O'Higgins at Santa Cruz, Rancagua and in Santiago and Melipilla, Chile.

 

 

AFRICA AND EUROPE

 

O: 22APR2019 04:27:43  12.8S   45.4E mb=4.5  EMSC   MAYOTTE REGION               

P: 18APR2019 115248    14.0S   44.0E 3.0-4.4 BBBAA  Madagascar area            

 

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

 

SOUTHWEST PACIFIC

 

O: 21APR2019 21:09:50   4.7S  153.0E mb=4.8  EMSC   NEW IRELAND REGION, P.N.G.   

P: 19APR2019 115036     5.0S  151.0E 4.0-5.5 AABAA  New Ireland                

 

O: 21APR2019 22:58:29   7.0S  150.6E mb=4.7  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 19APR2019 115036     5.0S  151.0E 4.0-5.5 ABAAA  New Ireland                

 

O: 22APR2019 02:06:37  18.2S  174.8W mb=4.7  EMSC   TONGA                        

P: 18APR2019 115257    19.0S  175.0W 4.0-5.8 BAAAA  Tonga Islands              

 

O: 21APR2019 07:27:03  18.2S  177.9W mb=5.0  EMSC   FIJI REGION                   

P: 18APR2019 115257    19.0S  175.0W 4.0-5.8 BACAA  Tonga Islands              

 

O: 22APR2019 04:38:03  22.1S  170.0E mb=4.7  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

O: 21APR2019 09:24:41  22.1S  174.9E Mw=5.4  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 16APR2019 115264    23.0S  170.0E 4.0-5.8 BAAAA  Loyalty 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: 21APR2019 08:39:13  24.9N  128.2E mb=4.7  EMSC   SOUTHEAST OF RYUKYU ISLANDS  

P: 21APR2019 115088    26.0N  126.0E 4.0-5.5 ABBAA  Ryukyu Islands             

 

O: 21APR2019 09:14:07  28.7N  138.9E mb=4.1  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 19APR2019 115076    29.0N  142.0E 4.0-5.4 AABAA  Bonin Islands              

 

O: 21APR2019 09:24:23  45.4N  149.9E mb=4.4  EMSC   KURIL ISLANDS                

P: 15APR2019 115169    44.0N  149.0E 3.5-5.6 CBAAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 21APR2019 22:17:13  35.9N  120.5W Md=2.1  EMSC   CENTRAL CALIFORNIA           

P: 15APR2019 115126    35.6N  121.3W 2.5-4.6 CAAAA  Off So. California         

 

O: 22APR2019 05:45:09  36.6N  121.2W Ml=3.5  EMSC   CENTRAL CALIFORNIA           

P: 16APR2019 115100    36.7N  121.4W 2.5-4.4 CAAAA  Central California         

 

O: 21APR2019 16:38:03  38.8N  122.8W ML=3.1  EMSC   NORTHERN CALIFORNIA          

O: 22APR2019 04:03:08  38.8N  122.8W Md=2.5  EMSC   NORTHERN CALIFORNIA          

P: 18APR2019 115102    38.9N  122.8W 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 Kelseyville, California.

The M 3.1 was felt with intensity II-III in Geyserville, Middletown and Healdsburg, California.

 

ALASKA

 

O: 22APR2019 05:02:46  59.5N  152.9W ml=3.0  EMSC   SOUTHERN ALASKA              

P: 16APR2019 115232    61.0N  151.4W 3.2-5.0 CBAAA  Central Alaska             

 

NEIC reported this earthquake of M 3.0 in Southern Alaska was felt with intensity II-III in the area(s) of Valdez, Alaska.

 

O: 21APR2019 19:48:43  61.4N  146.8W ML=3.2  EMSC   SOUTHERN ALASKA              

P: 18APR2019 115229    60.1N  147.1W 3.2-5.3 BBAAA  Central Alaska             

 

O: 22APR2019 02:04:32  62.7N  148.7W ML=3.4  EMSC   CENTRAL ALASKA               

P: 19APR2019 115234    62.8N  149.1W 3.2-4.9 BAAAA  Central Alaska             

 

O: 21APR2019 13:27:42  66.3N  157.0W ML=3.0  EMSC   NORTHERN ALASKA              

P: 14APR2019 115227    65.1N  154.4W 3.2-5.1 CBBAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O: 21APR2019 13:47:32  36.4N  112.2W ML=3.1  EMSC   ARIZONA                      

P: 18APR2019 115155    38.7N  112.6W 2.0-4.2 BCAAA  Utah area                  

 

EASTERN U.S./CANADA

 

O: 21APR2019 12:16:56  35.4N   84.9W Md=2.2  EMSC   EASTERN TENNESSEE            

P: 16APR2019 115112    35.0N   84.0W 2.0-4.1 BAAAA  Kentucky/Tennessee/NC      

 

O: 22APR2019 04:17:54  36.3N   89.5W md=1.6  ANSS   NW of Ridgely Tennessee      

P: 20APR2019 115118    36.9N   89.2W 2.0-4.1 AAAAA  New Madrid area            

 

HAWAII

 

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

 

SWARM HITS KOMANDORSKY ISLANDS, RUSSIA

 

EARTHQUAKE SUMMARY FOR APRIL 20, 2019

 

Quiet global seismic conditions continued today. The strongest earthquake of the day was an M 5.3 in the Komandorsky Islands of Russia. It was part of a swarm in the area including two events of M 4.8. The M 5.3 is the strongest earthquake within about 200 km of this epicenter in the Komandorsky Islands since an  M 5.4 on January 3, 2019 and prior to that an M 7.3 and aftershocks of December 20, 2018. Forecast 115214 had expected this activity in the Komandorsky Islands was likely around April 14-20. None of these events were reported felt in this remote area.

 

O: 21APR2019 01:38:55  54.8N  164.7E mb=4.0  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 21APR2019 00:50:27  54.8N  164.7E mb=4.2  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 20APR2019 22:12:16  54.8N  164.7E mb=4.8  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 20APR2019 22:34:39  54.9N  164.7E Mw=5.3  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 20APR2019 22:46:36  54.9N  164.7E mb=4.8  EMSC   KOMANDORSKIYE OSTROVA REGION 

P: 14APR2019 115214    55.0N  165.0E 4.0-5.9 CAAAA  Komandorsky Isl            

P: 20APR2019 115214    55.0N  169.0E 4.0-5.9 AACAA  Near Islands               

 

The strongest earthquake in the U.S., Canada or vicinity today was an M 5.1 in the western Andreanof Islands, Aleutians, Alaska. It was not reported felt in this remote epicentral area. This is the strongest earthquake reported within about 150 km of this epicenter since an M 5.9 on January 5, 2019 and prior to that an M 6.3 on August 23, 2018. Forecast 115206 had expected today's event within this area was likely around April 19.

 

 

O: 20APR2019 20:49:23  50.4N  179.0W mb=3.7  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

O: 21APR2019 06:31:38  51.6N  178.3W mb=5.1  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

O: 21APR2019 06:31:38  51.4N  178.2W mb=5.2  ANSS   ANDREANOF ISLANDS, ALEUTIAN IS

P: 19APR2019 115206    51.9N  179.8W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

An M 4.5 also occurred today in Northern Baja, Mexico. NEIC reported it was felt with intensity II-III in Northern Baja California at San Felipe, Ensenada, Jacumba, Primo Tapia and in portions of Southern California with lesser intensity. This is the strongest earthquake within about 100 km of this epicenter in Baja Mexico since an M 4.6 more than five years ago on December 20, 2013. An M 4.8 about  150 km northeast of this occurred on November 19, 2018.

Forecast 115133 had expected activity up to M 5.5 in this region in mid-April.

 

O: 20APR2019 14:41:50  31.2N  115.8W Mw=4.5  EMSC   BAJA CALIFORNIA, MEXICO      

O: 20APR2019 07:28:16  32.5N  115.6W Ml=2.1  EMSC   BAJA CALIFORNIA, MEXICO      

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 CAAAA  So. California             

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O: 21APR2019 01:38:55  54.8N  164.7E mb=4.0  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 21APR2019 00:50:27  54.8N  164.7E mb=4.2  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 20APR2019 22:12:16  54.8N  164.7E mb=4.8  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 20APR2019 22:34:39  54.9N  164.7E Mw=5.3  EMSC   KOMANDORSKIYE OSTROVA REGION 

O: 20APR2019 22:46:36  54.9N  164.7E mb=4.8  EMSC   KOMANDORSKIYE OSTROVA REGION 

P: 14APR2019 115214    55.0N  165.0E 4.0-5.9 CAAAA  Komandorsky Isl            

P: 20APR2019 115214    55.0N  169.0E 4.0-5.9 AACAA  Near Islands               

 

INDONESIA AND PHILIPPINES

 

O: 20APR2019 21:40:57   1.4N  128.3E mb=4.4  EMSC   HALMAHERA, INDONESIA         

O: 20APR2019 13:48:15   1.7N  127.2E ML=4.1  EMSC   HALMAHERA, INDONESIA         

P: 17APR2019 115021     1.0N  128.0E 4.0-5.4 BAAAA  Halmahera                  

 

O: 21APR2019 02:55:26   1.8S  122.5E ML=4.8  EMSC   SULAWESI, INDONESIA          

O: 21APR2019 06:57:42   1.9S  122.6E ML=4.5  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 BAAAA  Sulawesi area              

 

O: 20APR2019 10:10:45   3.7S  102.0E ML=4.3  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 17APR2019 115043     5.0S  103.0E 4.0-5.5 BBAAA  So. of Sumatera            

 

O: 20APR2019 14:36:47   4.0S  138.5E ML=4.3  EMSC   PAPUA, INDONESIA             

P: 10APR2019 114786     4.0S  137.0E 4.0-5.5 DAAAA  West Irian, PNG            

 

O: 20APR2019 08:43:11   4.2N   96.3E ML=4.1  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 20APR2019 115024     1.0N   98.0E 4.0-5.5 ACBAA  So. Sumatera               

 

O: 21APR2019 04:49:37   4.3N  126.3E ML=4.2  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 19APR2019 115022     4.0N  126.0E 4.0-5.6 AAAAA  Mindanao, Philippines      

 

O: 21APR2019 01:10:07   7.3S  124.0E mb=4.6  EMSC   BANDA SEA                    

P: 21APR2019 115031     8.0S  124.0E 4.0-5.4 AAAAA  Flores Island area         

 

O: 20APR2019 07:45:25   7.5N   94.3E mb=4.6  EMSC   NICOBAR ISLANDS, INDIA REGION

P: 18APR2019 115023     8.0N   94.0E 4.0-5.8 AAAAA  Nicobar Islands            

 

O: 21APR2019 04:12:52   9.6S  109.6E mb=4.8  EMSC   SOUTH OF JAVA, INDONESIA     

P: 21APR2019 115042     9.0S  109.0E 4.0-5.6 AAAAA  So. of Java                

 

 

CENTRAL AND SOUTH AMERICA

 

O: 21APR2019 02:03:27  16.0N   95.2W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 AAAAA  Chiapas, Mexico            

 

O: 21APR2019 03:21:25  16.1N   97.5W ML=4.0  EMSC   OAXACA, MEXICO               

P: 19APR2019 115068    17.0N   98.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

 

O: 21APR2019 02:29:45  19.4N   65.4W ML=3.0  EMSC   PUERTO RICO REGION           

P: 19APR2019 115075    20.0N   65.0W 3.0-4.4 AAAAA  Bahamas/No. Caribbean      

 

O: 20APR2019 14:22:52  27.9N  112.0W ML=3.8  EMSC   GULF OF CALIFORNIA           

O: 20APR2019 09:05:02  28.0N  112.1W ML=3.1  EMSC   GULF OF CALIFORNIA           

P: 19APR2019 115078    28.0N  112.0W 3.5-4.9 AAAAA  Gulf of California         

 

O: 20APR2019 23:23:45  30.9S   71.4W ML=4.3  EMSC   COQUIMBO, CHILE              

P: 19APR2019 115278    30.0S   71.0W 4.0-5.4 AAAAA  Coast Central Chile        

 

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

 

AFRICA AND EUROPE

 

O: 21APR2019 02:00:44  40.3N   52.3E mb=4.2  EMSC   CASPIAN SEA, OFFSHR TURKMENIST

P: 21APR2019 115171    40.0N   52.0E 4.0-5.5 AAAAA  Kazakhstan                 

 

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

 

SOUTHWEST PACIFIC

 

O: 21APR2019 05:09:56  16.5S  177.2W mb=4.9  EMSC   FIJI REGION                  

O: 21APR2019 07:27:03  18.1S  177.8W mb=4.8  EMSC   FIJI REGION                  

P: 18APR2019 115257    19.0S  175.0W 4.0-5.8 BACAA  Tonga Islands              

 

O: 20APR2019 13:56:19  20.1S  178.2W mb=4.8  EMSC   FIJI REGION                  

P: 17APR2019 115270    21.0S  175.0W 4.0-5.6 BACAA  Tonga Islands              

 

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

 

OCEAN RIDGES

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 21APR2019 05:53:12  37.7S  176.5E mb=4.6  EMSC   NORTH ISLAND OF NEW ZEALAND  

O: 21FEB2019 05:53:14  37.6S  176.5E ML=4.8  GEONET Felt with weak intensity

P: 17APR2019 115279    37.0S  177.0E 3.0-4.8 BAAAA  North Island, N.Z.         

 

GEONET reported this earthquake was felt with weak intensity in the area of northern North Island,  New Zealand. 226 people reported feeling this earthquake with 191 of weak intensity; 32 with light intensity; 2 with moderate intensity and 1 with strong shaking in North Island, New Zealand; 0 felt the quake with moderate intensity.

 

JAPAN AND KURIL ISLANDS

 

O: 20APR2019 15:27:24  28.5N  139.4E mb=4.4  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 19APR2019 115076    29.0N  142.0E 4.0-5.4 AABAA  Bonin Islands               

 

O: 20APR2019 19:09:46  29.9N  130.5E mb=4.6  EMSC   RYUKYU ISLANDS, JAPAN        

P: 18APR2019 115080    29.0N  131.0E 4.0-5.6 AAAAA  Kyushu Japan               

 

NEIC reported this earthquake of M 4.6 in the Ryukyu Islands, Japan was felt with intensity II-III in the area(s) of Nishinoomote, Kagoshima, Japan.

 

O: 21APR2019 04:02:43  39.2N  140.4E mb=4.5  EMSC   EASTERN HONSHU, JAPAN        

P: 17APR2019 115125    39.0N  142.0E 4.0-5.5 BAAAA  Off East Coast Honshu      

P: 21APR2019 115146    38.0N  143.0E 4.0-5.4 ABBAA  So. of Honshu              

 

O: 20APR2019 20:43:56  47.0N  145.7E mb=4.4  EMSC   SEA OF OKHOTSK               

P: 21APR2019 115198    48.0N  147.0E 3.5-5.4 AAAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 20APR2019 14:41:50  31.2N  115.8W Mw=4.5  EMSC   BAJA CALIFORNIA, MEXICO      

O: 20APR2019 07:28:16  32.5N  115.6W Ml=2.1  EMSC   BAJA CALIFORNIA, MEXICO      

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 CAAAA  So. California              

 

O: 20APR2019 16:26:12  36.3N  120.0W Md=2.2  EMSC   CENTRAL CALIFORNIA           

P: 14APR2019 115099    36.1N  120.1W 2.5-4.4 CAAAA  Central California         

 

O: 21APR2019 03:52:14  38.8N  122.8W MD=2.2  EMSC   NORTHERN CALIFORNIA           

O: 20APR2019 22:06:33  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA          

O: 20APR2019 15:12:53  38.8N  122.8W Md=2.4  EMSC   NORTHERN CALIFORNIA          

P: 18APR2019 115102    38.9N  122.8W 2.5-4.4 AAAAA  Central California         

 

 

ALASKA

 

O: 20APR2019 20:49:23  50.4N  179.0W mb=3.7  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

O: 21APR2019 06:31:38  51.6N  178.3W mb=5.1  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 19APR2019 115206    51.9N  179.8W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

O: 20APR2019 22:32:49  54.3N  161.3W ml=3.7  EMSC   ALASKA PENINSULA             

P: 17APR2019 115223    54.6N  161.7W 3.5-4.9 BAAAA  Unimak Islands, Aleutians  

 

O: 21APR2019 03:39:01  60.4N  150.8W ML=3.0  EMSC   KENAI PENINSULA, ALASKA      

P: 16APR2019 115232    61.0N  151.4W 3.2-5.0 BAAAA  Central Alaska             

 

NEIC reported this earthquake of M 3.0 in Kenai Peninsula, Alaska was felt with intensity II-III in the area(s) of Sterling, Alaska.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 20APR2019 14:31:54  48.0N  122.5W ML=2.2  EMSC   PUGET SOUND REGION, WASHINGTON

P: 14APR2019 115201    48.9N  123.1W 2.0-3.9 CAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 20APR2019 11:33:46  40.4N  111.4W ML=2.6  EMSC   UTAH                          

P: 18APR2019 115156    39.5N  111.9W 2.0-4.1 AAAAA  Utah area                  

 

NEIC reported this earthquake of M 2.6 in Utah was felt with intensity II-III in the area(s) of Wallsburg, Midway, Pleasant Grove, Orem, Heber City, Herriman Utah.

 

O: 20APR2019 08:45:23  37.2N  104.3W ml=1.0  ANSS   ENE of Trinidad Colorado

O: 20APR2019 07:10:24  37.2N  104.3W ml=1.2  ANSS   ENE of Trinidad Colorado

O: 20APR2019 13:36:42  37.2N  104.3W ml=1.5  ANSS   ENE of Trinidad Colorado     

P: 17APR2019 115106    37.3N  104.8W 2.0-4.0 BAAAA  Colorado area              

 

O: 20APR2019 09:56:29  37.7N  105.3W ml=1.9  ANSS   Alamosa East Colorado        

P: 20APR2019 115106    37.0N  105.2W 2.0-4.0 AAAAA  Colorado area              

 

EASTERN U.S./CANADA

 

No earthquakes of M>=1 were located in the Eastern U.S. or Canada today.

 

HAWAII

 

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

 

ELAXED SEISMICITY; QUIET DAY

 

EARTHQUAKE SUMMARY FOR APRIL 19, 2019

 

Global seismicity was quiet today. There were no significant earthquakes recorded in the Western Hemisphere and only a few of M 5.0-5.2, mostly in the Solomon Islands and southwest Pacific in the Eastern Hemisphere. While the full moon arrived today, with the lack of ocean storm and solar and geomagnetic conditions at very quiet levels, the tidal stresses may not be sufficient to help promote strong seismicity at this time. The tidal forecast had read:

 

 

"The full moon will arrive at 11:12 UT on April 19, 2019. Longitudes which are sub-solar at this time are near 15 East and 165 West. These include areas of central and western Europe in the east and the Aleutian Islands and western Alaska in the West. Other areas which may see enhanced tidal promotion at this time are the Kermadec-Tonga arc north to Samoa. While these regions will experience maximum stress from the tidal alignment, many other areas could see enhanced seismicity in the next five days and a strong earthquake is likely in this time period." (April 19-21, 2019)

 

The strongest earthquake of the day was an M 5.2-5.3 in Mindanao, Philippines. It was not reported felt in the epicentral area of Mindanao. Forecast 115022 had expected this event within about 150 km of the epicenter was likely around April 19.

 

O: 19APR2019 07:08:19   5.5N  125.7E ML=4.2  EMSC   MINDANAO, PHILIPPINES        

O: 19APR2019 07:29:58   5.5N  126.8E Mw=5.2  EMSC   MINDANAO, PHILIPPINES        

O: 19APR2019 07:29:53   5.2N  127.0E MS=5.3  PHI  Not reported felt.             

P: 19APR2019 115022     4.0N  126.0E 4.0-5.6 ABAAA  Mindanao, Philippines      

 

O: 20APR2019 03:48:21  10.3S  161.2E mb=5.0  EMSC   SOLOMON ISLANDS              

P: 21APR2019 115249    10.0S  162.0E 4.0-5.4 AAAAA  No. of Santa Cruz Islands  

 

O: 19APR2019 23:02:53  18.4S  177.7W Mw=5.0  EMSC   FIJI REGION                  

P: 18APR2019 115257    19.0S  175.0W 4.0-5.8 AACAA  Tonga Islands              

 

O: 20APR2019 06:52:10  25.5S  179.6E mb=4.9  EMSC   SOUTH OF FIJI ISLANDS        

P: 12APR2019 115271    23.0S  179.0E 4.0-5.7 CCAAA  Tonga/Fiji                 

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: 20APR2019 02:41:05  27.0N   55.9E mb=4.7  EMSC   SOUTHERN IRAN                

P: 15APR2019 115089    28.0N   56.0E 3.5-5.1 BAAAA  So. Iran/Persian Gulf      

 

NEIC reported this earthquake of M 4.7 in Southern Iran was felt with intensity II-III in the area(s) of Bandar Abbas, Iran.

 

O: 20APR2019 00:50:10  22.8N   86.1E ML=4.4  EMSC   HARKHAND - ORISSA REGION, INDI

P: 15APR2019 115085    27.0N   88.0E 3.5-5.5 BCBAA  Nepal                       

 

O: 19APR2019 19:52:39  44.7N   77.9E mb=4.0  EMSC   EASTERN KAZAKHSTAN           

P: 21APR2019 115172    42.0N   81.0E 4.0-5.5 ACCAA  Kirgizstan/Xinjiang        

 

O: 19APR2019 15:33:09  55.0N  160.7E mb=4.4  EMSC   NEAR EAST COAST OF KAMCHATKA 

P: 14APR2019 115214    55.0N  165.0E 4.0-5.9 BACAA  Komandorsky Isl            

 

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

 

INDONESIA AND PHILIPPINES

 

O: 19APR2019 14:25:52   0.2S  123.4E ML=4.1  EMSC   SULAWESI, INDONESIA          

O: 20APR2019 00:55:36   1.9S  122.6E mb=5.0  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 BAAAA  Sulawesi area              

 

O: 19APR2019 07:08:19   5.5N  125.7E ML=4.2  EMSC   MINDANAO, PHILIPPINES         

O: 19APR2019 07:29:58   5.5N  126.8E Mw=5.2  EMSC   MINDANAO, PHILIPPINES        

O: 19APR2019 07:29:53   5.2N  127.0E MS=5.3  PHI  Not reported felt.             

P: 19APR2019 115022     4.0N  126.0E 4.0-5.6 ABAAA  Mindanao, Philippines      

 

O: 19APR2019 18:47:19   6.2S  129.8E ML=4.2  EMSC   BANDA SEA                    

P: 17APR2019 115026     6.0S  128.0E 4.0-5.5 AABAA  Banda Sea                  

 

O: 20APR2019 01:04:09   5.8S  154.5E mb=4.9  EMSC   BOUGAINVILLE REGION, P.N.G.  

P: 15APR2019 115034     7.0S  154.0E 4.0-5.5 BBAAA  New Britain                

 

 

O: 18APR2019 11:00:56   5.5N  124.5E MS=4.0  PHI  Felt with intensity III in Kiamb

P: 14APR2019 115017     7.0N  124.0E 4.0-5.4 BBAAA  Central Philippines        

 

O: 19APR2019 12:29:17  11.5S  116.3E mb=4.9  EMSC   SOUTH OF LOMBOK, INDONESIA   

P: 14APR2019 115255    11.0S  116.0E 4.0-5.5 BAAAA  So. of Indonesia           

 

 

CENTRAL AND SOUTH AMERICA

 

O: 19APR2019 21:37     20.3S   69.1W mb=5.0  GUC    Arica at Cuya and III in Arica

P: 21APR2019 115269    20.0S   70.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

CSN reported this earthquake was felt with intensity  VI in  Arica at Cuya and III in Arica; Tarapaca IV at Alto Hospicio, Cerro Colorado, Huara, Iquique, La Tirana, Pica, Pozo Almonte, Ujina; III in Camina, El Loa, Mamina and Pisagua; Antofagasta with IV in Quillagua and III in Tocopilla, Chile.

 

O: 19APR2019 13:36:08  12.0N   86.9W mb=4.9  EMSC   NEAR COAST OF NICARAGUA      

P: 19APR2019 115064    11.0N   86.0W 3.5-5.3 AAAAA  Nicaragua                  

 

NEIC reported this earthquake of M 4.9 offshore Nicaragua was felt with intensity II-III in the area(s) of Nicaragua at San Rafael de Sur Managua, Ciudad Sandino, Jinotepe, Managua and Catarina, Masaya.

 

O: 19APR2019 19:43:00  14.1N   92.3W Mw=4.8  EMSC   OFFSHORE GUATEMALA           

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 AABAA  Chiapas, Mexico            

 

NEIC reported this earthquake of M 4.8 offshore Guatemala  was felt with intensity II-III in the area(s) of San Marcos, Guatemala.

 

O: 20APR2019 04:55:05  15.9N   96.9W ML=4.2  EMSC   OAXACA, MEXICO               

P: 14APR2019 115068    16.0N   96.0W 3.5-5.4 CAAAA  Oaxaca, Mexico             

 

O: 19APR2019 07:55:36  16.8N   98.8W ML=4.0  EMSC   GUERRERO, MEXICO             

P: 19APR2019 115068    17.0N   98.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

 

O: 19APR2019 21:27:05  16.9N  100.3W ML=4.1  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 15APR2019 115069    17.0N  100.0W 3.5-5.3 BAAAA  Oaxaca, Mexico              

 

O: 19APR2019 07:49:05  17.3N   70.2W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 ABAAA  Puerto Rico                

 

O: 19APR2019 13:43:28  17.8N   68.8W ML=3.2  EMSC   DOMINICAN REPUBLIC REGION     

P: 19APR2019 115071    19.0N   68.0W 3.4-5.3 ABAAA  Puerto Rico                

 

O: 19APR2019 16:40:29  18.1N  103.5W ML=4.2  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 20APR2019 115062    19.0N  104.0W 3.5-5.1 AAAAA  Michoacan, Mexico          

 

O: 19APR2019 11:38:42  19.5N   66.4W Md=3.0  EMSC   PUERTO RICO REGION           

P: 17APR2019 115070    18.0N   66.0W 3.4-5.3 ABAAA  Puerto Rico                

 

O: 19APR2019 21:37:39  20.3S   69.1W Mw=4.8  EMSC   TARAPACA, CHILE              

P: 21APR2019 115269    20.0S   70.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

NEIC reported this earthquake of M 4.8 in northern Chile was felt with intensity IV in the area(s) of Iquique, Chile.

 

O: 20APR2019 03:51:32  21.3S   68.8W mb=4.5  EMSC   ANTOFAGASTA, CHILE           

P: 20APR2019 115260    22.0S   67.0W 4.0-5.6 AABAA  Argentina                  

 

O: 19APR2019 14:43:33  32.8S   70.1W ML=4.3  EMSC   VALPARAISO, CHILE            

P: 18APR2019 115275    34.0S   73.0W 4.0-5.6 ABBAA  Central Chile               

 

O: 19APR2019 12:43:27  22.9S   69.0W ML=4.2  EMSC   ANTOFAGASTA, CHILE           

P: 19APR2019 115263    23.0S   69.0W 4.0-5.6 AAAAA  Coast No. Chile            

 

O: 19APR2019 08:55:41  24.1S   67.1W mb=4.2  EMSC   SALTA, ARGENTINA             

P: 20APR2019 115260    22.0S   67.0W 4.0-5.6 ACAAA  Argentina                  

 

O: 19APR2019 17:59:23  26.6N  111.7W ML=3.9  EMSC   BAJA CALIFORNIA SUR, MEXICO  

O: 19APR2019 17:37:57  27.9N  112.0W ML=3.7  EMSC   GULF OF CALIFORNIA           

P: 19APR2019 115078    28.0N  112.0W 3.5-4.9 AAAAA  Gulf of California         

 

O: 20APR2019 00:00:05  32.0S   71.7W mb=4.1  EMSC   OFFSHORE COQUIMBO, CHILE     

P: 18APR2019 115275    34.0S   73.0W 4.0-5.6 ABAAA  Central Chile              

 

 

AFRICA AND EUROPE

 

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

 

SOUTHWEST PACIFIC

 

O: 20APR2019 03:48:21  10.3S  161.2E mb=5.0  EMSC   SOLOMON ISLANDS              

P: 21APR2019 115249    10.0S  162.0E 4.0-5.4 AAAAA  No. of Santa Cruz Islands  

 

O: 19APR2019 13:27:18   7.1S  156.3E mb=4.5  EMSC   SOLOMON ISLANDS              

P: 14APR2019 115044     8.0S  155.0E 4.0-5.4 BAAAA  Solomon Islands            

 

O: 20APR2019 06:06:45  15.3S  173.2W mb=4.5  EMSC   TONGA                        

P: 18APR2019 115250    15.0S  173.0W 4.0-5.6 AAAAA  Samoa Islands              

 

O: 19APR2019 23:02:53  18.4S  177.7W Mw=5.0  EMSC   FIJI REGION                  

P: 18APR2019 115257    19.0S  175.0W 4.0-5.8 AACAA  Tonga Islands              

 

O: 20APR2019 06:52:10  25.5S  179.6E mb=4.9  EMSC   SOUTH OF FIJI ISLANDS        

P: 12APR2019 115271    23.0S  179.0E 4.0-5.7 CCAAA  Tonga/Fiji                 

 

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

 

OCEAN RIDGES

 

O: 20APR2019 02:29:02  38.0S   95.5W Mw=5.0  EMSC   SOUTHEAST OF EASTER ISLAND   

P: 17APR2019 115277    36.0S   97.0W 4.0-5.4 BBBAA  Chile Rise                 

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 19APR2019 07:49:14  42.4S  173.5E ML=4.9  GEONET Felt with moderate intensity i

O: 19APR2019 07:49:12  42.6S  173.7E mb=4.3  EMSC   SOUTH ISLAND OF NEW ZEALAND  

P: 18APR2019 115286    41.0S  174.0E 3.0-4.9 ABAAA  So. Island, N.Z.           

 

GEONET reported this earthquake was felt with moderate intensity in northern South Island. 212 people reported feeling this event; 51 with weak intensity; 94 with light shaking; 59 moderate; 8 strong and none with extreme shaking.

NEIC reported this earthquake of M 4.3 in South Island, New Zealand was felt with intensity II-III in the area(s) of Cheviot, Canterbury, New Zealand.

 

JAPAN AND KURIL ISLANDS

 

O: 19APR2019 07:05:56  42.7N  141.6E mb=4.6  EMSC   HOKKAIDO, JAPAN REGION       

P: 13APR2019 115168    42.0N  143.0E 3.5-5.5 CAAAA  Hokkaido, Japan             

 

O: 19APR2019 14:38:03  50.5N  156.4E mb=4.5  EMSC   KURIL ISLANDS                

P: 18APR2019 115213    51.0N  158.0E 4.0-5.9 AAAAA  Kamchatka                  

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 19APR2019 08:06:42  32.2N  115.1W Ml=2.2  EMSC   BAJA CALIFORNIA, MEXICO      

O: 19APR2019 08:28:59  32.3N  115.1W Ml=2.1  EMSC   BAJA CALIFORNIA, MEXICO      

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 CAAAA  So. California             

 

O: 19APR2019 21:21:27  36.7N  121.3W Md=2.3  EMSC   CENTRAL CALIFORNIA           

P: 16APR2019 115100    36.7N  121.4W 2.5-4.4 BAAAA  Central California         

 

O: 19APR2019 15:31:07  37.0N  121.6W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 17APR2019 115101    37.3N  121.6W 2.5-4.4 AAAAA  Central California         

 

O: 19APR2019 07:19:53  37.6N  118.9W Md=2.2  EMSC   LONG VALLEY AREA, CALIFORNIA 

P: 20APR2019 115098    37.9N  118.2W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 20APR2019 03:34:42  39.1N  123.0W Md=2.3  EMSC   NORTHERN CALIFORNIA          

P: 18APR2019 115102    38.9N  122.8W 2.5-4.4 AAAAA  Central California         

 

O: 19APR2019 11:22:18  40.0N  119.6W ml=2.2  EMSC   NEVADA                       

P: 15APR2019 115163    40.2N  119.6W 2.5-4.4 BAAAA  California/Nevada area     

 

O: 19APR2019 19:18:21  40.3N  124.4W Md=2.0  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 19APR2019 23:17:33  40.4N  125.9W ML=3.3  EMSC   OFF COAST OF NORTHERN CALIFORN

P: 18APR2019 115188    40.4N  127.2W 2.5-4.6 AAAAA  Off Coast of No. Calif      

 

NEIC reported this earthquake of M 3.3 off the coast of Northern California  was felt with intensity II-III in the area(s) of Eureka, California.

 

 

ALASKA

 

O: 19APR2019 13:25:51  67.7N  160.4W ml=3.1  EMSC   NORTHERN ALASKA              

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O: 19APR2019 21:43:56  39.3N  112.0W ML=2.5  EMSC   UTAH                         

O: 19APR2019 21:38:48  39.3N  112.0W Ml=2.0  EMSC   UTAH                         

P: 18APR2019 115156    39.5N  111.9W 2.0-4.1 AAAAA  Utah area                  

 

EASTERN U.S./CANADA

 

O: 19APR2019 19:27:02  37.0N   98.0W mb=2.4  EMSC   OKLAHOMA                     

P: 19APR2019 115149    38.0N   98.0W 2.0-3.9 AAAAA  Southern Plains            

 

HAWAII

 

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

 

STRONG QUAKE SOUTH OF AUSTRALIA

 

EARTHQUAKE SUMMARY FOR APRIL 18, 2019

 

The strongest earthquake in the world today was an M 6.5 in the Western Antarctic-Indian Ridge south of Australia. It was not reported felt in this remote area. This is the largest earthquake on the Western Indian-Antarctic Ridge within about 300 km of this epicenter since an M 6.6 on June 11, 2000, the only other such event in the area in at least 30 years. Forecast 115288 had expected activity on the Ridge was likely around April 21.

 

O: 18APR2019 14:46:01  51.1S  139.5E Mw=6.5  EMSC   WESTERN INDIAN-ANTARCTIC RIDGE

P: 21APR2019 115288    49.0S  122.0E 4.0-5.6 BBCAA  So. of Australia           

 

The largest earthquake in the U.S. or Canada today was an M 3.4 in Hawaii. NEIC reported this earthquake of M 3.4 in Hawaii was felt with intensity II-III in the area(s) of Kailua Kona, Waikoloa, Kamuela, Holualoa, Dealakekua, Honaunau, Captain Cook, Naalehu and Kailua, Hawaii. This is the strongest tectonic earthquake in Hawaii since an M 5.2-5.3 occurred several days ago on April 14, 2019 and prior to that an M 3.4 on March 31, 2019. It may have been promoted by tidal effects associated with the full moon as it occurred near local solar noon but is probably an aftershock of the April 14 event as it occurred at the same epicenter. Forecast 115056 had expected this activity was likely around April 15. The tidal forecast had noted maximum tides near the longitude of Hawaii at this time as:

 

"The full moon will arrive at 11:12 UT on April 19, 2019. Longitudes which are sub-solar at this time are near 15 East and 165 West. These include areas of central and western Europe in the east and the Aleutian Islands and western Alaska in the West. Other areas which may see enhanced tidal promotion at this time are the Kermadec-Tonga arc north to Samoa. While these regions will experience maximum stress from the tidal alignment, many other areas could see enhanced seismicity in the next five days and a strong earthquake is likely in this time period." (April 19-21, 2019)

 

O: 19APR2019 00:27:58  19.8N  155.8W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII     

P: 15APR2019 115056    19.2N  155.2W 3.0-4.4 BAAAA  Hawaii                     

 

Unusual earthquakes which may have been promoted by the full moon today included

an M 4.3 in South Korea; an M 4.5 in the DR Congo and an M 3.7 in Sarawak, Indonesia. The events in the Congo and  in South Korea occurred  near local solar noon, a time when tidal stresses with full moon maximize. Forecast 115033 had expected a moderate quake in the Congo region within about  200 km of today's epicenter in mid-April.

 

O: 18APR2019 08:18:27   0.8S   27.5E mb=4.5  EMSC   DEMOCRATIC REPUBLIC OF THE CON

P: 14APR2019 115033     2.0S   29.0E 3.0-4.9 BBBAA  Lake Victoria area         

 

O: 19APR2019 02:16:43  37.9N  129.5E ML=4.3  EMSC   SOUTH KOREA                  

P: 18APR2019 115115    32.0N  132.0E 3.5-4.9 ACBAA  Kyushu, Japan area         

 

O: 18APR2019 20:48:38   1.9N  111.5E ML=3.8  EMSC   SARAWAK, MALAYSIA            

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: 18APR2019 16:32:11  36.5N   70.4E mb=4.3  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 15APR2019 115109    36.0N   70.0E 3.8-5.2 BAAAA  Hindu Kush/Pakistan        

 

O: 19APR2019 02:16:43  37.9N  129.5E ML=4.3  EMSC   SOUTH KOREA                  

P: 18APR2019 115115    32.0N  132.0E 3.5-4.9 ACBAA  Kyushu, Japan area         

 

O: 18APR2019 19:06:45  42.4N   80.8E mb=4.1  EMSC   KAZAKHSTAN-XINJIANG BORDER REG

P: 21APR2019 115172    42.0N   81.0E 4.0-5.5 BAAAA  Kirgizstan/Xinjiang        

 

INDONESIA AND PHILIPPINES

 

O: 18APR2019 21:48:09   1.1N   97.2E ML=4.1  EMSC   NIAS REGION, INDONESIA       

P: 20APR2019 115024     1.0N   98.0E 4.0-5.5 AAAAA  So. Sumatera               

 

O: 18APR2019 21:31:44   1.7N  125.3E mb=4.5  EMSC   MOLUCCA SEA                  

P: 19APR2019 115022     0.0N  125.0E 4.0-5.6 ABAAA  Mindanao, Philippines       

 

O: 18APR2019 20:48:38   1.9N  111.5E ML=3.8  EMSC   SARAWAK, MALAYSIA            

 

O: 18APR2019 12:20:16   2.1S  122.3E ML=4.6  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 ABAAA  Sulawesi area              

 

O: 18APR2019 20:53:06   4.5S  102.3E ML=4.7  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 17APR2019 115043     5.0S  103.0E 4.0-5.5 AAAAA  So. of Sumatera            

 

O: 18APR2019 10:20:19   5.2S  132.5E ML=4.1  EMSC   KEPULAUAN KAI, INDONESIA     

P: 17APR2019 115047     4.0S  134.0E 4.0-5.4 ABBAA  West Irian, PNG            

 

O: 18APR2019 10:54:33  10.1S  118.8E ML=4.2  EMSC   SOUTH OF SUMBAWA, INDONESIA  

O: 18APR2019 20:08:01  10.1S  118.8E ML=4.2  EMSC   SOUTH OF SUMBAWA, INDONESIA  

P: 19APR2019 115046     8.0S  118.0E 4.0-5.4 ACAAA  Sumbawa Island area        

 

O: 18APR2019 16:06:18  10.8S  110.8E ML=4.4  EMSC   SOUTH OF JAVA, INDONESIA     

P: 21APR2019 115042     9.0S  111.0E 4.0-5.6 BBAAA  So. of Java                

 

 

O: 18APR2019 21:57:55   7.6N   94.3E Mw=5.0  EMSC   NICOBAR ISLANDS, INDIA REGION

O: 18APR2019 21:52:13   7.6N   94.4E Mw=5.0  EMSC   NICOBAR ISLANDS, INDIA REGION

P: 18APR2019 115023     8.0N   94.0E 4.0-5.8 AAAAA  Nicobar Islands            

 

CENTRAL AND SOUTH AMERICA

 

O: 18APR2019 13:25:30   9.3N   83.3W ML=4.2  EMSC   COSTA RICA                   

P: 13APR2019 115019     8.0N   83.0W 3.5-5.3 BBAAA  Costa Rica                 

 

O: 18APR2019 18:18:30  11.0N   85.7W ML=4.1  EMSC   COSTA RICA                   

O: 18APR2019 23:56:11  11.8N   87.6W mb=4.4  EMSC   NEAR COAST OF NICARAGUA      

P: 19APR2019 115064    11.0N   86.0W 3.5-5.3 AABAA  Nicaragua                  

 

O: 19APR2019 06:21:00  13.2S   76.7W ML=4.0  EMSC   NEAR COAST OF CENTRAL PERU   

P: 18APR2019 115246    14.0S   73.0W 4.0-5.5 AACAA  Central Peru               

 

O: 19APR2019 04:56:13  17.7N   69.1W ML=3.6  EMSC   DOMINICAN REPUBLIC REGION    

P: 13APR2019 115070    18.0N   69.0W 3.4-5.1 CAAAA  Puerto Rico                

 

O: 19APR2019 06:56:02  18.1N   71.5W ML=3.3  EMSC   DOMINICAN REPUBLIC           

O: 18APR2019 18:08:40  18.9N   70.2W ML=3.1  EMSC   DOMINICAN REPUBLIC           

O: 18APR2019 12:23:12  19.7N   71.0W ML=3.2  EMSC   DOMINICAN REPUBLIC           

P: 14APR2019 115075    20.0N   72.0W 3.0-4.6 BAAAA  Bahamas/No. Caribbean      

 

O: 19APR2019 05:25:22  19.9N   70.3W ML=3.2  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 18APR2019 15:17:25  22.1S   67.4W ML=4.1  EMSC   POTOSI, BOLIVIA              

P: 20APR2019 115260    22.0S   67.0W 4.0-5.6 AAAAA  Argentina                  

 

O: 19APR2019 04:33:29  28.0N  112.1W ML=4.0  EMSC   GULF OF CALIFORNIA           

P: 19APR2019 115078    28.0N  112.0W 3.5-4.9 AAAAA  Gulf of California         

 

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

 

AFRICA AND EUROPE

 

O: 18APR2019 08:18:27   0.8S   27.5E mb=4.5  EMSC   DEMOCRATIC REPUBLIC OF THE CON

P: 14APR2019 115033     2.0S   29.0E 3.0-4.9 BBBAA  Lake Victoria area         

 

SOUTHWEST PACIFIC

 

O: 18APR2019 18:54:55   4.1S  152.1E mb=4.8  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 19APR2019 115036     5.0S  151.0E 4.0-5.5 AAAAA  New Ireland                

 

O: 18APR2019 21:05:01   5.9S  155.0E mb=4.9  EMSC   BOUGAINVILLE REGION, P.N.G.  

P: 15APR2019 115034     7.0S  154.0E 4.0-5.5 BBAAA  New Britain                

 

O: 18APR2019 08:57:27  17.9S  178.1W mb=4.4  EMSC   FIJI REGION                  

P: 12APR2019 115257    18.0S  177.0W 4.0-5.6 CAAAA  Tonga Islands              

 

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

 

OCEAN RIDGES

 

O: 18APR2019 13:08:51  21.9S   68.8E mb=4.8  EMSC   MID-INDIAN RIDGE             

P: 20APR2019 115267    28.0S   66.0E 4.0-5.4 ACBAA  So. Indian Ocean           

 

O: 18APR2019 14:46:01  51.1S  139.5E Mw=6.5  EMSC   WESTERN INDIAN-ANTARCTIC RIDGE

P: 21APR2019 115288    49.0S  122.0E 4.0-5.6 BBCAA  So. of Australia           

 

 

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: 18APR2019 08:09:25  34.0N  137.5E mb=4.1  EMSC   NEAR S. COAST OF HONSHU, JAPAN

P: 19APR2019 115105    34.0N  136.0E 3.5-5.0 AAAAA  Central/So. Honshu Japan   

 

O: 18APR2019 09:25:05  24.8N  128.2E mb=4.5  EMSC   SOUTHEAST OF RYUKYU ISLANDS  

P: 21APR2019 115088    26.0N  126.0E 4.0-5.5 BABAA  Ryukyu Islands             

 

O: 18APR2019 09:27:09  26.1N  129.5E mb=4.9  EMSC   RYUKYU ISLANDS, JAPAN        

P: 21APR2019 115088    26.0N  126.0E 4.0-5.5 BACAA  Ryukyu Islands             

 

O: 19APR2019 04:14:59  43.4N  146.4E mb=4.7  EMSC   KURIL ISLANDS                

P: 20APR2019 115169    43.0N  146.0E 3.5-5.7 AAAAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 18APR2019 22:53:50  32.4N  115.1W ML=2.9  EMSC   BAJA CALIFORNIA, MEXICO      

O: 18APR2019 22:01:13  32.4N  115.1W Ml=2.4  EMSC   BAJA CALIFORNIA, MEXICO      

O: 18APR2019 22:51:43  32.4N  115.2W Ml=2.4  EMSC   BAJA CALIFORNIA, MEXICO      

O: 18APR2019 14:56:20  32.8N  115.4W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 BAAAA  So. California             

 

O: 18APR2019 21:18:56  33.4N  116.4W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

O: 18APR2019 13:06:27  33.5N  116.8W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 21APR2019 115135    33.4N  116.7W 2.5-4.4 BAAAA  So. California              

 

O: 18APR2019 12:54:16  35.1N  118.3W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 21APR2019 115142    35.3N  118.6W 2.5-4.6 BAAAA  So. California             

 

O: 18APR2019 22:37:41  36.0N  115.1W ml=2.2  EMSC   NEVADA                       

P: 21APR2019 115097    37.8N  115.8W 2.5-4.5 BBAAA  California/Nevada area     

 

O: 18APR2019 16:31:54  36.0N  120.9W Md=2.0  EMSC   CENTRAL CALIFORNIA           

P: 15APR2019 115126    35.6N  121.3W 2.5-4.6 BAAAA  Off So. California         

 

O: 19APR2019 02:23:44  37.1N  121.5W Md=2.1  EMSC   NORTHERN CALIFORNIA          

O: 19APR2019 00:48:46  37.1N  121.5W Md=2.7  EMSC   NORTHERN CALIFORNIA          

O: 18APR2019 21:11:01  37.2N  122.4W Md=2.0  EMSC   OFFSHORE NORTHERN CALIFORNIA 

O: 18APR2019 21:35:29  37.2N  122.4W Md=2.8  EMSC   NORTHERN CALIFORNIA          

P: 17APR2019 115101    37.3N  121.6W 2.5-4.4 AAAAA  Central California         

 

 

NEIC reported this earthquake of M 2.7 in SE of San Francisco, CA was felt with intensity II-III in the area(s) of Gilroy and San Juan Bautista, California.

NEIC reported this earthquake of M 2.8 South of San Francisco, CA  was felt with intensity II-III in the area(s) of Pescadero, Santa Cruz, San Ramon, California.

 

O: 18APR2019 19:15:43  37.4N  118.5W Md=2.1  EMSC   CENTRAL CALIFORNIA           

P: 20APR2019 115098    37.9N  118.2W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 18APR2019 15:30:58  38.4N  122.4W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 17APR2019 115102    38.5N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 18APR2019 08:24:57  38.8N  122.8W Md=2.1  EMSC   NORTHERN CALIFORNIA          

O: 19APR2019 06:18:41  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA          

O: 18APR2019 09:12:17  38.8N  122.8W Md=2.3  EMSC   NORTHERN CALIFORNIA          

P: 18APR2019 115102    38.9N  122.8W 2.5-4.4 AAAAA  Central California         

 

O: 19APR2019 02:53:41  40.2N  124.2W Md=2.7  EMSC   NORTHERN CALIFORNIA          

P: 12APR2019 115189    40.5N  124.1W 2.5-4.4 CAAAA  Off Coast of No. Calif     

 

NEIC reported this earthquake of M 2.7 in Northern California was felt with intensity II-III in the area(s) of Garberville, Eureka and Fort Bragg, California.

 

 

ALASKA

 

O: 18APR2019 23:01:00  66.3N  157.3W ML=3.3  EMSC   NORTHERN ALASKA              

P: 14APR2019 115227    65.1N  154.4W 3.2-5.1 BBBAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O: 18APR2019 10:44:34  39.0N  111.0W Ml=2.3  EMSC   UTAH                         

O: 18APR2019 17:18:52  39.4N  110.3W ML=2.1  EMSC   UTAH                         

P: 16APR2019 115156    39.7N  110.8W 2.0-4.4 AAAAA  Utah area                  

 

O: 19APR2019 00:28:06  46.9N  112.5W ML=2.6  EMSC   WESTERN MONTANA              

P: 14APR2019 115177    45.7N  112.1W 2.0-4.1 BBAAA  Montana/Idaho              

 

NEIC reported this earthquake of M 2.6 in Western Montana was felt with intensity II-III in the area(s) of Lincoln and Canyon Creek, Montana.

 

EASTERN U.S./CANADA

 

O: 19APR2019 06:51:27  33.2N   92.6W Md=2.1  EMSC   ARKANSAS                     

P: 20APR2019 115118    35.0N   92.0W 2.0-4.2 ABAAA  New Madrid area            

 

HAWAII

 

O: 19APR2019 00:27:58  19.8N  155.8W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII     

P: 15APR2019 115056    19.2N  155.2W 3.0-4.4 BAAAA  Hawaii                     

 

STRONG QUAKE RATTLES TAIWAN

 

EARTHQUAKE SUMMARY FOR APRIL 17, 2019

 

A strong earthquake of M 6.1 shook most of Taiwan today. High-rise buildings in Taipei swayed during the quake. NEIC reported maximum intensit VI in Hualien, Taipei, and Miaoli and IV in Ilan, Taichung with lesser shaking in Hsinchu Counties, Taiwan. CWB reported this earthquake was felt with intensity VII in Hualien; V in Nantou, Yilan, Taichung, Taipei; IV in Taoyuan, Hsnichu, Miaoli, Changhua; III in Chiayi, Yunlin, Taitung; II in Kaohsiung, Tainan and Penghu and I in Pingtung Counties, Taiwan. The M 4.1 aftershock was felt with intensity V in Hualien; III in Nantou and II in Taichung and Yilan Counties, Taiwan. More than a dozen people were reported injured in this earthquake which stopped public transportation. Two hikers were injured by rock slides and at least 15 were injured by falling debris in the area of Taipei. The China Earthquake Networks Center gave the event M 6.7. Schools were closed and some roads were shut down for inspection. At least two building were evacuated due to structural damage. Today's M 6.1 occurred within about an hour of local solar noon when Taiwan was near the sub-solar point on the earth (the point where the sun is directly overhead at local solar noon). It was probably promoted by strong tidal stresses associated with the full moon which occurs tomorrow. These maximize near this hour. A moderate foreshock hit the same epicenter on April 9, 2019 following a series of moderate regional events in early April.  Today's event of M 6.1 is the strongest in Taiwan since an M 6.4 on February 6, 2018 – that followed an M 6.1 on February 4, 2018, earthquakes which occurred about 25 km north of today's epicenter. These were the largest in Taiwan since February 5, 2016 when an M 6.4 hit the area southwest of today's activity. Forecast 115091 had expected today's event within about 50 km of the epicenter was likely around April 18.

 

O: 18APR2019 05:17:26  24.1N  121.5E ML=4.1  EMSC   TAIWAN                       

O: 18APR2019 05:01:07  24.1N  121.5E ML=6.1  TAI    Hualien, Taiwan              

O: 18APR2019 05:01:06  24.0N  121.7E mw=6.1  ANSS   E of Hualian Taiwan

O: 18APR2019 05:17:27  24.1N  121.5E ML=4.1  TAI    Hualien, Taiwan              

O: 18APR2019 05:01:06  24.1N  121.5E Mw=6.1  EMSC   TAIWAN                       

P: 18APR2019 115091    24.0N  121.0E 4.0-5.4 AAAAA  Taiwan                     

 

An earthquake of M 5.6 in Central Chile preceded the M 6.1 in Taiwan by about an hour. NEIC reported it was felt with intensity V in Coquimbo; IV in La Serena and Vicuna and II-III in Salamanca, Villa Alemana, Lampa and Santiago, Chile. CSN reported this earthquake was felt with intensity VI in  Coquimbo at La Higuera, La Serena; V in Monte Patria, Ovalle, Paiguano, Vicuna; IV in Punitaqui, Salamanca; Canela, Combarbala, Coquimbo; III in Illapel and Andacollo; Atacama with V in Freirina, Huasco and Vallenar IV in Alto del Carmen, Copiapo and Tierra Amarilla and III in Caldera, Chile. This event occurred within less than an hour of local solar midnight and may have been promoted by stresses associated with the full moon alignment which maximizes on April 19. Two events of M>=5.6 have occurred within about 200  km of today's epicenter in the past year - an M 5.7 on March 7, 2019 and an M 6.7 on January 20, 2019. Forecast 115262 had expected today's earthquake was likely within about 50 km of this epicenter around April 19.

 

O: 18APR2019 04:06:33  29.3S   71.6W Mw=5.6  EMSC   OFFSHORE COQUIMBO, CHILE     

O: 18APR2019 04:06     29.4S   71.6W mb=5.6  GUC    Coquimbo at La Higuera, La Ser

P: 19APR2019 115262    29.0S   72.0W 4.0-5.5 AAAAA  Coast Central Chile        

 

The strongest earthquake in the U.S. or Canada today was an M 4.9 in the Fox Islands, Aleutians, Alaska. As it occurred within a few degrees longitude of the maximum tidal stresses  associated with the upcoming full moon it may have been promoted by that alignment as noted in this summary:

 

"The full moon will arrive at 11:12 UT on April 19, 2019. Longitudes which are sub-solar at this time are near 15 East and 165 West. These include areas of central and western Europe in the east and the Aleutian Islands and western Alaska in the West. Other areas which may see enhanced tidal promotion at this time are the Kermadec-Tonga arc north to Samoa. While these regions will experience maximum stress from the tidal alignment, many other areas could see enhanced seismicity in the next five days and a strong earthquake is likely in this time period." (April 17-18, 2019)

 

Two earthquakes of M>=4.9 have occurred within the Fox Islands within about 150 km of this epicenter in the past 1.5 years - an M 5.1 on January 28, 2018 more than a year ago and an M 4.9 on December 10, 2017. The last such event of significantly larger magnitude was an M 5.3 on August 9, 2017. Forecast 116212 had expected a moderate earthquake in this area around April 17.

 

O: 18APR2019 02:44:39  52.3N  168.5W mb=4.9  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 17APR2019 115212    53.6N  166.1W 3.5-5.1 ABBAA  Fox Islands, Aleutians     

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O: 18APR2019 05:17:26  24.1N  121.5E ML=4.1  EMSC   TAIWAN                       

O: 18APR2019 05:01:06  24.1N  121.5E Mw=6.1  EMSC   TAIWAN                       

P: 18APR2019 115091    24.0N  121.0E 4.0-5.4 AAAAA  Taiwan                     

 

O: 17APR2019 20:02:51  33.3N   46.5E mb=4.5  EMSC   IRAN-IRAQ BORDER REGION      

P: 17APR2019 115144    33.0N   48.0E 3.8-5.2 AAAAA  So. Iran                   

 

O: 17APR2019 18:35:20  36.6N   71.3E mb=4.2  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 15APR2019 115109    36.0N   70.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

INDONESIA AND PHILIPPINES

 

O: 17APR2019 21:01:04   1.9S  122.5E ML=4.2  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 AAAAA  Sulawesi area              

 

O: 17APR2019 16:11:11   2.9N   96.2E ML=4.0  EMSC   SIMEULUE, INDONESIA          

P: 20APR2019 115024     1.0N   98.0E 4.0-5.5 BBBAA  So. Sumatera               

 

O: 18APR2019 02:27:56   3.0S  138.1E ML=4.8  EMSC   PAPUA, INDONESIA             

P: 10APR2019 114786     4.0S  137.0E 4.0-5.5 CAAAA  West Irian, PNG            

 

O: 17APR2019 21:16:46   3.3N   92.8E mb=4.8  EMSC   FF W COAST OF NORTHERN SUMATRA

P: 17APR2019 115023     2.0N   93.0E 4.0-5.6 ABAAA  Nicobar Islands            

 

O: 18APR2019 02:50:06   3.8S  131.6E ML=4.3  EMSC   CERAM SEA, INDONESIA         

P: 17APR2019 115047     3.0S  130.0E 4.0-5.6 AABAA  West Irian, PNG            

 

O: 18APR2019 02:41:23   3.9N  128.0E ML=4.0  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 19APR2019 115022     4.0N  126.0E 4.0-5.6 AABAA  Mindanao, Philippines      

 

O: 17APR2019 13:36:40   7.0S  129.5E mb=4.3  EMSC   KEPULAUAN BABAR, INDONESIA   

P: 14APR2019 115047     7.0S  131.0E 4.0-5.4 BABAA  West Irian, PNG            

 

 

CENTRAL AND SOUTH AMERICA

 

O: 17APR2019 09:13:29   2.2S   81.0W mb=4.4  EMSC   NEAR COAST OF ECUADOR        

P: 19APR2019 115030     1.0S   80.0W 4.0-5.4 ABAAA  Ecuador                    

 

O: 18APR2019 04:36:00   5.4S   80.4W ML=4.0  EMSC   NEAR COAST OF NORTHERN PERU  

P: 21APR2019 115038     6.0S   76.0W 4.0-5.8 BACAA  No. Peru                   

 

O: 17APR2019 09:38:30   8.1N   83.4W ML=4.2  EMSC   COSTA RICA                   

P: 13APR2019 115019     8.0N   83.0W 3.5-5.3 BAAAA  Costa Rica                 

 

O: 17APR2019 09:55:49   4.1N   82.5W Mw=5.1  EMSC   SOUTH OF PANAMA              

P: 17APR2019 115019     4.0N   83.0W 4.0-5.6 AAAAA  Ecuador                    

 

O: 17APR2019 15:01:01   5.1S   78.1W Mw=4.9  EMSC   NORTHERN PERU                

P: 21APR2019 115038     6.0S   76.0W 4.0-5.8 BABAA  No. Peru                    

 

NEIC reported this earthquake of M 4.9 in Northern Peru was felt with intensity II-III in the area(s) of Loja and Cuenca Azuay, Ecuador.

 

O: 17APR2019 17:02:27  14.7N   92.4W ML=4.1  EMSC   CHIAPAS, MEXICO              

O: 18APR2019 00:10:39  15.2N   93.6W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 AAAAA  Chiapas, Mexico            

 

O: 17APR2019 09:02:57  15.4N   94.9W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

O: 17APR2019 14:57:06  15.4N   95.0W ML=4.1  EMSC   OFFSHORE OAXACA, MEXICO      

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 AAAAA  Chiapas, Mexico            

 

O: 18APR2019 00:52:48  16.6N   94.6W ML=4.0  EMSC   OAXACA, MEXICO               

O: 17APR2019 19:08:58  17.0N   95.5W ML=4.1  EMSC   OAXACA, MEXICO               

P: 15APR2019 115051    17.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 17APR2019 07:29:14  17.2N   69.5W ML=3.5  EMSC   DOMINICAN REPUBLIC REGION    

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 ABAAA  Puerto Rico                

 

O: 17APR2019 23:13:56  18.5N   71.2W ML=3.1  EMSC   DOMINICAN REPUBLIC           

P: 14APR2019 115075    20.0N   72.0W 3.0-4.6 BBAAA  Bahamas/No. Caribbean      

 

O: 17APR2019 19:15:53  18.8N   64.4W Md=3.1  EMSC   VIRGIN ISLANDS REGION        

P: 17APR2019 115058    18.0N   65.0W 3.0-5.0 AAAAA  Leeward Islands            

 

O: 18APR2019 00:38:57  19.1N   67.3W Md=3.0  EMSC   PUERTO RICO REGION           

O: 18APR2019 00:24:59  19.5N   68.2W Md=3.1  EMSC   DOMINICAN REPUBLIC REGION    

P: 19APR2019 115071    19.0N   68.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 17APR2019 13:58:54  22.1S   66.2W ML=4.2  EMSC   JUJUY, ARGENTINA             

P: 20APR2019 115260    22.0S   67.0W 4.0-5.6 BAAAA  Argentina                   

 

O: 18APR2019 04:06:33  29.3S   71.6W Mw=5.6  EMSC   OFFSHORE COQUIMBO, CHILE     

P: 19APR2019 115262    29.0S   72.0W 4.0-5.5 AAAAA  Coast Central Chile        

 

 

AFRICA AND EUROPE

 

O: 17APR2019 19:27:43  37.6N   20.6E mb=4.2  EMSC   IONIAN SEA                   

P: 21APR2019 115119    37.0N   21.0E 3.0-5.0 BAAAA  No. Greece                 

 

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

 

SOUTHWEST PACIFIC

 

O: 17APR2019 23:50:49   9.4S  150.9E mb=4.6  EMSC   EASTERN NEW GUINEA REG., P.N.G

O: 17APR2019 23:26:37   9.5S  150.9E Mw=5.2  EMSC   EASTERN NEW GUINEA REG., P.N.G

O: 17APR2019 21:15:28   9.5S  150.9E mb=4.9  EMSC   EASTERN NEW GUINEA REG., P.N.G

O: 17APR2019 08:21:57   9.5S  151.0E mb=4.9  EMSC   D'ENTRECASTEAUX ISLANDS REGION

O: 17APR2019 15:15:37   9.5S  151.0E mb=4.9  EMSC   EASTERN NEW GUINEA REG., P.N.G

O: 17APR2019 23:07:31   9.6S  151.1E mb=4.9  EMSC   D'ENTRECASTEAUX ISLANDS REGION

P: 13APR2019 115036     7.0S  151.0E 4.0-5.6 BCAAA  New Ireland                 

 

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: 17APR2019 21:07:57  42.8N  146.0E mb=4.5  EMSC   OFF COAST OF HOKKAIDO, JAPAN 

P: 20APR2019 115169    43.0N  146.0E 3.5-5.7 BAAAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 17APR2019 10:12:54  32.9N  115.6W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 BAAAA  So. California             

 

O: 18APR2019 04:37:27  33.3N  116.4W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

O: 18APR2019 05:32:01  33.3N  116.4W Ml=2.3  EMSC   SOUTHERN CALIFORNIA          

P: 21APR2019 115135    33.4N  116.7W 2.5-4.4 BAAAA  So. California             

 

O: 18APR2019 03:15:15  35.9N  120.5W Md=3.0  EMSC   CENTRAL CALIFORNIA           

P: 14APR2019 115099    36.1N  120.1W 2.5-4.4 BAAAA  Central California         

 

O: 17APR2019 12:08:06  36.8N  121.6W Ml=2.8  EMSC   CENTRAL CALIFORNIA           

P: 17APR2019 115100    36.9N  121.7W 2.5-4.4 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 San Juan Bautista, Salinas, Gilroy, Hollister, Seaside, Monterey and Carmel, California.

 

O: 17APR2019 21:51:28  37.3N  118.3W Md=2.5  EMSC   CENTRAL CALIFORNIA            

P: 20APR2019 115098    37.9N  118.2W 2.5-4.4 BAAAA  California/Nevada area     

 

O: 17APR2019 12:39:02  37.7N  122.5W Md=2.0  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 18APR2019 115101    37.8N  122.6W 2.5-4.5 AAAAA  Central California         

 

O: 17APR2019 14:01:48  38.6N  118.5W ml=2.2  EMSC   NEVADA                       

P: 15APR2019 115098    39.1N  118.1W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 17APR2019 18:26:13  38.8N  122.8W MD=2.5  EMSC   NORTHERN CALIFORNIA          

P: 17APR2019 115102    38.5N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 17APR2019 17:36:17  39.7N  123.7W Md=2.1  EMSC   NORTHERN CALIFORNIA          

P: 16APR2019 115103    39.3N  123.2W 2.5-4.8 AAAAA  Central California         

 

O: 17APR2019 21:57:19  40.4N  125.3W Md=2.7  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 14APR2019 115190    40.9N  126.3W 2.5-4.4 BAAAA  Off Coast of No. Calif     

 

 

ALASKA

 

O: 18APR2019 01:38:25  51.4N  178.3W ml=3.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 19APR2019 115206    51.9N  179.8W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

O: 18APR2019 02:44:39  52.3N  168.5W mb=4.9  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 17APR2019 115212    53.6N  166.1W 3.5-5.1 ABBAA  Fox Islands, Aleutians     

 

O: 18APR2019 05:11:58  61.6N  140.6W ml=3.2  EMSC   SOUTHERN YUKON TERRITORY, CANA

P: 19APR2019 115230    61.0N  138.0W 3.2-5.2 AABAA  Central Alaska             

 

O: 18APR2019 01:35:03  66.3N  157.1W ml=3.8  EMSC   NORTHERN ALASKA              

O: 18APR2019 05:57:22  66.3N  157.6W ML=3.5  EMSC   NORTHERN ALASKA              

P: 14APR2019 115227    65.1N  154.4W 3.2-5.1 AAAAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 17APR2019 11:14:46  49.9N  130.0W MB=3.4  ECAN Port Alice, BC                 

O: 17APR2019 00:06:00  50.7N  130.3W MB=3.3  ECAN Port Hardy, BC                 

P: 16APR2019 115209    50.7N  130.5W 3.0-5.2 AAAAA  British Colombia           

 

ROCKY MOUNTAINS REGION

 

O: 18APR2019 05:56:58  38.3N  108.9W ML=2.5  EMSC   COLORADO                      

P: 15APR2019 115107    38.3N  108.9W 2.0-3.9 BAAAA  Colorado area              

 

O: 18APR2019 05:23:33  39.1N  111.0W Ml=2.0  EMSC   UTAH                         

O: 18APR2019 05:09:52  39.4N  110.3W ML=2.2  EMSC   UTAH                          

P: 16APR2019 115156    39.7N  110.8W 2.0-4.4 AAAAA  Utah area                  

 

EASTERN U.S./CANADA

 

O: 18APR2019 00:30:21  35.8N   82.4W md=1.4  ANSS   Weaverville North Carolina   

P: 15APR2019 115112    35.9N   82.8W 2.0-4.0 BAAAA  Kentucky/Tennessee/NC      

 

O: 17APR2019 17:37:54  46.5N   72.0W MB=2.4  ECAN Portneuf, QC                   

P: 15APR2019 115182    46.0N   74.0W 2.0-4.2 AABAA  New York State             

 

O: 17APR2019 01:20:26  45.0N   59.8W MB=1.9  ECAN Louisbourg, NS                  

 

HAWAII

 

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

 

 

 

 

 

MODERATE QUAKES HIT SOUTHERN OCEAN AREAS

 

EARTHQUAKE SUMMARY FOR APRIL 16, 2019

 

A series of moderate earthquakes of M 5.5-5.8 hit across the Southern Oceans today. The strongest of these were a series in the central Kermadec Islands of New Zealand (M 5.5, 5.7, 5.8) An M 5.7 also occurred on the opposite side of the world in the southern Atlantic near Tristan da Cunha (M 5.7) and to the south of this in the South Sandwich Islands (M 5.5).

 

The strongest of the activity in the southern oceans today was a series of moderately large events in the Kermadec Islands of northern New Zealand of M 5.0, 5.5, 5.7 and 5.8. This is a sparsely populated region and earthquakes are seldom reported felt by the local population. A series of moderately large to large quakes has hit the area in recent week, the largest of which was an M 6.4 on March  6, 2019. Forecast 115282 had expected today's activity was likely around April 18.

 

O: 16APR2019 09:39:37  30.9S  178.8W Mw=5.7  EMSC   KERMADEC ISLANDS, NEW ZEALAND

O: 16APR2019 09:22:32  31.1S  179.0W Mw=5.8  EMSC   KERMADEC ISLANDS REGION      

P: 18APR2019 115282    32.0S  179.0W 4.0-5.5 AAAAA  So. Kermadec Islands       

 

O: 17APR2019 05:03:42  31.8S  179.9E mb=5.0  EMSC   KERMADEC ISLANDS REGION      

O: 16APR2019 16:01:15  32.4S  179.4W Mw=5.5  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 18APR2019 115282    32.0S  179.0W 4.0-5.5 AAAAA  So. Kermadec Islands       

 

The earthquake in Tristan da Cunha area of the South Atlantic was also not felt in this remote area. It is the strongest earthquake within about 300 km of this epicenter since an M 5.7 on July 2, 2015. That event was an aftershock of the strongest quake in the area in at least 30 years - an M 7.0 on June 17, 2015.

 

O: 16APR2019 07:30:39  35.3S   15.5W mb=5.7  EMSC   TRISTAN DA CUNHA REGION      

 

The M 5.5 in the eastern South Sandwich Islands continued strong seismicity in that area during the current month. This was not felt in this remote area.  It is the strongest earthquake within about 100 km of this epicenter since an M 5.7 on December 10, 2015. An M 6.5 hit about 100 km west of this on April 9, 2019. Today's event is probably a regional aftershock of the M 6.5. Forecast 115293 had expected activity in  this area was likely with magnitude up to M 5.5 around April 18.

 

O: 16APR2019 16:59:16  58.7S   23.7W mb=5.5  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 18APR2019 115293    61.0S   26.0W 4.0-5.5 ACBAA  Southern  Ocean            

 

The strongest earthquake in the U.S. or Canada today was an M 4.2 in the western Andreanof Islands. It was not reported felt in this remote area. The last earthquake with M>=4.2 in the western Andreanof Islands occurred on March 22, 2019 with M 4.8. Ten such quakes have occurred in this area during 2019. Forecast 115206 had expected today's event within about 50 km of this epicenter was likely around April 19.

 

O: 16APR2019 21:31:00  50.9N  179.4W mb=4.2  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 19APR2019 115206    50.5N  179.8W 3.5-5.3 BAAAA  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: 16APR2019 06:50:30  28.0N   84.8E ML=4.5  EMSC   NEPAL                        

P: 18APR2019 115159    31.0N   84.0E 3.8-5.2 ACAAA  Xizang                     

 

O: 16APR2019 22:43:49  30.7N   57.3E mb=4.5  EMSC   EASTERN IRAN                 

P: 15APR2019 115089    28.0N   56.0E 3.5-5.1 ACAAA  So. Iran/Persian Gulf      

 

O: 16APR2019 22:17:13  36.2N   69.0E mb=4.5  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 15APR2019 115109    36.0N   70.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O: 16APR2019 15:22:54  53.9N  160.5E mb=4.8  EMSC   NEAR EAST COAST OF KAMCHATKA 

P: 12APR2019 115211    52.0N  160.0E 4.0-5.6 BBAAA  E. of Kamchatka            

 

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

 

INDONESIA AND PHILIPPINES

 

O: 16APR2019 23:12:45   0.9N  120.2E mb=4.6  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 17APR2019 115014     1.0N  122.0E 4.0-5.5 AABAA  Celebes Sea                

 

O: 16APR2019 15:44:24   0.1S  122.5E mb=4.6  EMSC   SULAWESI, INDONESIA          

P: 12APR2019 115014     0.0N  122.0E 4.0-5.4 BAAAA  Celebes Sea                

 

O: 16APR2019 16:44:56   1.9S  122.6E ML=4.3  EMSC   SULAWESI, INDONESIA          

O: 17APR2019 05:39:10   1.9S  122.6E ML=4.5  EMSC   SULAWESI, INDONESIA          

O: 16APR2019 09:45:09   2.1S  122.5E ML=4.0  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 AAAAA  Sulawesi area              

 

O: 17APR2019 03:46:42   2.8N  123.9E ML=4.5  EMSC   CELEBES SEA                  

P: 15APR2019 115022     1.0N  124.0E 4.0-5.5 ABAAA  Mindanao, Philippines      

 

O: 16APR2019 08:22:04   4.8N  126.5E ML=4.1  EMSC   KEPULAUAN TALAUD, INDONESIA  

O: 16APR2019 08:16:10   4.9N  126.4E ML=4.1  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 19APR2019 115022     4.0N  126.0E 4.0-5.6 BAAAA  Mindanao, Philippines      

 

O: 16APR2019 21:59:24   5.0S  134.2E mb=4.5  EMSC   KEPULAUAN ARU REGION, INDONESI

P: 17APR2019 115047     4.0S  134.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 16APR2019 14:01:45   5.5S  131.3E ML=4.4  EMSC   BANDA SEA                    

P: 14APR2019 115047     7.0S  131.0E 4.0-5.4 ABAAA  West Irian, PNG            

 

O: 16APR2019 12:18:33   7.5S  120.2E ML=4.2  EMSC   FLORES SEA                   

O: 16APR2019 12:19:57   7.7S  120.2E ML=4.5  EMSC   FLORES SEA                   

P: 16APR2019 115031     7.0S  121.0E 4.0-5.4 AAAAA  Flores Island area         

 

O: 16APR2019 20:18:20   8.2S  116.8E ML=4.7  EMSC   LOMBOK REGION, INDONESIA     

P: 19APR2019 115046     8.0S  118.0E 4.0-5.4 BAAAA  Sumbawa Island area        

 

O: 17APR2019 02:19:05  19.4N  121.3E mb=4.5  EMSC   BABUYAN ISL REGION, PHILIPPINE

P: 20APR2019 115090    20.0N  121.0E 4.0-5.4 BAAAA  Taiwan                     

 

CENTRAL AND SOUTH AMERICA

 

O: 16APR2019 17:38:19  14.8N   92.4W ML=4.0  EMSC   CHIAPAS, MEXICO              

P: 12APR2019 115051    14.0N   93.0W 3.5-5.3 BAAAA  Chiapas, Mexico            

 

O: 16APR2019 23:23:40  15.3N   94.8W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 19APR2019 115051    15.0N   94.0W 3.5-5.2 BAAAA  Chiapas, Mexico            

 

O: 16APR2019 20:55:25  16.1N   96.2W ML=4.2  EMSC   OAXACA, MEXICO               

P: 14APR2019 115068    16.0N   96.0W 3.5-5.4 AAAAA  Oaxaca, Mexico             

 

O: 17APR2019 05:47:28  17.2N   94.3W ML=4.3  EMSC   VERACRUZ, MEXICO             

P: 15APR2019 115051    17.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 17APR2019 01:43:03  18.6N   68.8W ML=3.3  EMSC   DOMINICAN REPUBLIC           

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                

P: 19APR2019 115071    19.0N   68.0W 3.4-5.3 AAAAA  Puerto Rico                 

 

O: 16APR2019 11:46:36  18.6N   73.5W ML=3.8  EMSC   HAITI REGION                 

P: 14APR2019 115075    20.0N   72.0W 3.0-4.6 ABBAA  Bahamas/No. Caribbean      

 

O: 17APR2019 04:17:43  19.0N   68.2W ML=3.0  EMSC   DOMINICAN REPUBLIC REGION     

P: 18APR2019 115071    19.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 16APR2019 10:29:05  19.3N   62.1W mb=4.4  EMSC   ANGUILLA REGION, LEEWARD ISLAN

P: 13APR2019 115057    18.0N   61.0W 3.0-5.1 BBAAA  Leeward Islands            

 

O: 16APR2019 22:06:14  23.2S   67.3W ML=4.2  EMSC   ANTOFAGASTA, CHILE           

P: 19APR2019 115263    23.0S   69.0W 4.0-5.6 BABAA  Coast No. Chile            

 

O: 16APR2019 21:31:38  27.4N  108.8W ML=3.5  EMSC   SONORA, MEXICO               

P: 19APR2019 115078    28.0N  112.0W 3.5-4.9 BACAA  Gulf of California         

 

O: 16APR2019 17:01:00  28.3S   63.1W mb=5.1  EMSC   SANTIAGO DEL ESTERO, ARGENTINA

P: 21APR2019 115260    27.0S   63.0W 4.0-5.5 BBAAA  Argentina                  

 

 

AFRICA AND EUROPE

 

O: 16APR2019 12:54:00  35.8N    0.9W ML=4.0  EMSC   NORTHERN ALGERIA             

P: 17APR2019 115116    37.0N    4.0W 3.5-5.3 ABBAA  Morocco/Spain              

 

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

 

SOUTHWEST PACIFIC

 

O: 16APR2019 23:04:46   5.7S  148.4E mb=4.7  EMSC   NEW BRITAIN REGION, P.N.G.   

O: 16APR2019 15:02:06   6.1S  147.6E mb=4.5  EMSC   EASTERN NEW GUINEA REG., P.N.G

P: 14APR2019 115035     4.0S  147.0E 4.0-5.4 ACAAA  New Ireland                

 

O: 16APR2019 18:05:04   6.2S  149.1E mb=5.1  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 13APR2019 115036     7.0S  151.0E 4.0-5.6 BABAA  New Ireland                

 

O: 16APR2019 14:47:52  17.4S  167.4E mb=4.9  EMSC   VANUATU                      

P: 16APR2019 115259    17.0S  168.0E 4.0-5.6 AAAAA  Vanuatu Islands            

 

OCEAN RIDGES

 

O: 16APR2019 07:30:39  35.3S   15.5W mb=5.7  EMSC   TRISTAN DA CUNHA REGION      

 

O: 16APR2019 16:59:16  58.7S   23.7W mb=5.5  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 18APR2019 115293    61.0S   26.0W 4.0-5.5 ACBAA  Southern  Ocean            

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 16APR2019 09:39:37  30.9S  178.8W Mw=5.7  EMSC   KERMADEC ISLANDS, NEW ZEALAND

O: 16APR2019 09:22:32  31.1S  179.0W Mw=5.8  EMSC   KERMADEC ISLANDS REGION      

P: 18APR2019 115282    32.0S  179.0W 4.0-5.5 AAAAA  So. Kermadec Islands       

 

O: 17APR2019 05:03:42  31.8S  179.9E mb=5.0  EMSC   KERMADEC ISLANDS REGION      

O: 16APR2019 16:01:15  32.4S  179.4W Mw=5.5  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 18APR2019 115282    32.0S  179.0W 4.0-5.5 AAAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 16APR2019 10:42:33  34.2N  136.8E mb=4.4  EMSC   WESTERN HONSHU, JAPAN        

P: 19APR2019 115105    34.0N  136.0E 3.5-5.0 BAAAA  Central/So. Honshu Japan   

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 16APR2019 18:06:18  33.1N  115.0W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 BAAAA  So. California             

 

O: 16APR2019 12:31:58  33.6N  116.7W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115135    33.7N  116.1W 2.5-4.5 AAAAA  So. California             

P: 21APR2019 115135    33.4N  116.7W 2.5-4.4 BAAAA  So. California             

 

O: 16APR2019 13:26:57  35.1N  119.1W Ml=2.6  EMSC   CENTRAL CALIFORNIA           

P: 18APR2019 115140    35.0N  119.2W 2.5-4.5 AAAAA  So. California             

 

O: 17APR2019 03:32:06  36.1N  117.7W Ml=2.0  EMSC   CENTRAL CALIFORNIA           

P: 15APR2019 115095    36.3N  118.1W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 17APR2019 05:11:43  37.3N  122.1W Md=2.2  EMSC   SAN FRANCISCO BAY AREA, CALIF.

O: 16APR2019 12:23:32  37.4N  121.7W Md=2.0  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 17APR2019 115101    37.3N  121.6W 2.5-4.4 AAAAA  Central California         

 

O: 16APR2019 18:12:08  38.8N  122.8W Md=2.1  EMSC   NORTHERN CALIFORNIA          

O: 16APR2019 08:26:10  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA          

P: 13APR2019 115102    38.7N  122.7W 2.5-4.6 BAAAA  Central California         

 

 

ALASKA

 

O: 16APR2019 21:31:00  50.9N  179.4W mb=4.2  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 19APR2019 115206    50.5N  179.8W 3.5-5.3 BAAAA  Andreanoff Isls, Aleutians 

 

O: 16APR2019 16:33:31  66.3N  157.3W ML=3.3  EMSC   NORTHERN ALASKA

O: 16APR2019 08:15:35  66.3N  157.4W ml=3.7  EMSC   NORTHERN ALASKA

O: 16APR2019 23:55:25  66.3N  157.5W ML=3.0  EMSC   NORTHERN ALASKA

O: 16APR2019 08:01:47  66.3N  157.5W ml=3.3  EMSC   NORTHERN ALASKA

O: 16APR2019 18:36:35  66.3N  157.5W ml=3.6  EMSC   NORTHERN ALASKA

O: 17APR2019 00:41:22  66.3N  157.2W ML=3.1  EMSC   NORTHERN ALASKA              

P: 14APR2019 115227    65.1N  154.4W 3.2-5.1 BBAAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 16APR2019 15:40:31  46.9N  120.7W Md=2.7  EMSC   WASHINGTON                   

P: 13APR2019 115201    47.7N  120.3W 2.0-4.0 BAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 16APR2019 14:26:59  37.9N  112.5W Ml=2.1  EMSC   UTAH                         

P: 16APR2019 115155    38.6N  112.7W 2.0-4.3 AAAAA  Utah area                  

 

O: 16APR2019 10:34:27  45.9N  111.4W ML=2.6  EMSC   WESTERN MONTANA              

O: 16APR2019 12:59:16  46.4N  111.4W Ml=2.5  EMSC   WESTERN MONTANA              

P: 14APR2019 115177    45.7N  112.1W 2.0-4.1 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 16APR2019 11:09:22  36.2N   89.5W Md=2.5  EMSC   TENNESSEE                    

O: 16APR2019 11:23:59  36.3N   89.5W mb=2.8  EMSC   TENNESSEE                     

P: 14APR2019 115118    36.7N   89.7W 2.0-4.1 AAAAA  New Madrid area            

 

NEIC reported these earthquakes of M 2.8 and 2.5 in Tennessee were felt with intensity II-III in the area(s) of Obion, Tennessee and Sikeston, Missouri.

 

O: 16APR2019 21:25:16  36.5N   97.7W mb=2.9  EMSC   OKLAHOMA                     

P: 13APR2019 115149    37.0N   96.0W 2.0-3.9 BAAAA  Southern Plains            

 

NEIC reported this earthquake of M 2.9 in Oklahoma was felt with intensity IV in Enid, Oklahoma and II-III in the area(s) of Fairmont, Oklahoma.

 

O: 16APR2019 17:47:53  46.3N   70.5W ml=1.9  ANSS   ENE of Beauceville Canada    

P: 17APR2019 115174    47.0N   70.0W 2.0-4.2 AAAAA  Maine                      

 

HAWAII

 

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

 

NORTHERN CALIFORNIA ACTIVE

 

EARTHQUAKE SUMMARY FOR APRIL 15, 2019

 

A pair of moderate earthquakes occurred in northern California today - an M 4.1 in the Geysers area north of San Francisco and an M 4.2 and foreshocks in the Bishop/Mammoth Lakes area near the central Nevada border. This summary has previously argued that seismicity in California peaks in mid-April to early May and this appears to confirm that analysis.

 

An M 4.2 was widely felt in the Mammoth Lakes region of central California today. NEIC reported intensity II-III in Bishop, Mammoth Lakes, Shaver Lake, Auberry, Squaw Valley, Yosemite and El Portal, California. An M 3.4 foreshock two minutes earlier was felt with intensity III in Bishop. Smaller foreshocks earlier in the day were also felt lightly in Bishop, California. The last earthquake in the Bishop/Mammoth Lakes region of M>=4.2 occurred on December 28, 2016 when an M 5.7 about 100 km northwest of today's event was followed by a series of aftershocks of M 5.6 and 5.7. The last such event in the Bishop area occurred more than three years ato on February 16, 2016.  Forecasts 115095 and 115098 had expected this activity was likely around April 13.

 

O: 15APR2019 18:24:08  37.4N  118.5W Md=2.0  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 18:07:26  37.4N  118.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 19:04:36  37.4N  118.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 16APR2019 01:09:44  37.4N  118.5W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 14:19:16  37.4N  118.5W Md=2.9  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 22:39:17  37.4N  118.5W Mh=2.1  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 15:58:47  37.4N  118.5W Mw=3.4  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 12:20:25  37.4N  118.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 17:55:58  37.4N  118.5W ML=4.2  EMSC   CENTRAL CALIFORNIA           

P: 13APR2019 115095    37.3N  119.4W 2.5-4.6 AAAAA  California/Nevada area     

P: 13APR2019 115098    38.4N  118.2W 2.5-4.4 AAAAA  California/Nevada area     

 

The last event in the Geysers area of northern California with M>=4.1 was an M 4.2 on May 10, 2018. The last of larger magnitude was an M 5.0 on December 14, 2016. Forecast 115102 had expected this event within about 15 km of the epicenter was likely around April 13.

 

O: 15APR2019 12:10:26  38.8N  122.8W Md=2.0  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 13:06:39  38.8N  122.8W Md=2.0  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 11:56:18  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 12:05:26  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 15:18:47  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 16APR2019 01:23:14  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 11:54:03  38.8N  122.8W mw=4.1  ANSS   NW of The Geysers

O: 15APR2019 11:54:03  38.8N  122.8W Mw=4.1  EMSC   NORTHERN CALIFORNIA          

P: 13APR2019 115102    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

 

The strongest earthquake in the U.S. or Canada today was an M 4.7 in Northern Alaska. NEIC reported it was felt with intensity II-III in Alaska at Huslia and Hughes. Moderate earthquakes in this area began on February 10, 2019 with M 4.8. Aftershocks of M 5.2 later occurred on March 6 and March 26, 2019. Forecast 115227 had expected this area would be active in mid-April.

 

O: 16APR2019 05:07:47  66.3N  157.2W ML=4.7  EMSC   NORTHERN ALASKA

O: 16APR2019 06:22:15  66.3N  157.5W ml=3.0  EMSC   NORTHERN ALASKA

O: 16APR2019 05:35:46  66.3N  157.5W ml=3.1  EMSC   NORTHERN ALASKA

O: 16APR2019 05:18:10  66.3N  157.0W ml=3.1  EMSC   NORTHERN ALASKA              

P: 14APR2019 115227    65.1N  154.4W 3.2-5.1 ABBAA  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: 15APR2019 15:26:23  24.1N  121.5E ML=4.1  EMSC   TAIWAN                       

O: 15APR2019 15:26:23  24.1N  121.5E ML=4.1  TAI    Hualien, Taiwan              

P: 18APR2019 115091    24.0N  121.0E 4.0-5.4 BAAAA  Taiwan                      

 

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

 

O: 16APR2019 06:50:30  28.0N   84.8E ML=4.5  EMSC   NEPAL                        

P: 18APR2019 115159    31.0N   84.0E 3.8-5.2 ACAAA  Xizang                     

 

O: 15APR2019 07:48:01  53.4N  166.1E mb=4.0  EMSC   KOMANDORSKIYE OSTROVA REGION 

P: 14APR2019 115214    55.0N  165.0E 4.0-5.9 ABAAA  Komandorsky Isl            

 

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

 

INDONESIA AND PHILIPPINES

 

O: 15APR2019 10:34:01   1.9S  122.5E ML=4.0  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 AAAAA  Sulawesi area              

 

O: 15APR2019 17:57:05   2.4N   95.7E ML=4.2  EMSC   SIMEULUE, INDONESIA          

P: 17APR2019 115023     2.0N   93.0E 4.0-5.6 AACAA  Nicobar Islands            

 

O: 16APR2019 01:53:19   5.0S  130.0E ML=4.6  EMSC   BANDA SEA                    

P: 14APR2019 115047     7.0S  131.0E 4.0-5.4 ABAAA  West Irian, PNG            

 

O: 15APR2019 09:51:35   6.3S  105.4E ML=4.0  EMSC   SUNDA STRAIT, INDONESIA      

P: 17APR2019 115043     5.0S  103.0E 4.0-5.5 ABBAA  So. of Sumatera            

 

O: 16APR2019 01:07:53   8.7S  117.7E ML=4.2  EMSC   SUMBAWA REGION, INDONESIA    

P: 13APR2019 115046     8.0S  117.0E 4.0-5.6 BAAAA  Sumbawa Island area        

 

O: 15APR2019 06:49:36   9.1S  120.6E mb=4.6  EMSC   SUMBA REGION, INDONESIA      

P: 16APR2019 115031     7.0S  121.0E 4.0-5.4 ACAAA  Flores Island area         

 

 

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

 

CENTRAL AND SOUTH AMERICA

 

O: 16APR2019 03:19:30   8.1S   71.7W mb=4.7  EMSC   ACRE, BRAZIL                 

P: 18APR2019 115027     9.0S   75.0W 3.5-5.4 AACAA  Brazil                     

 

O: 16APR2019 00:47:48   2.1N   84.6W mb=4.7  EMSC   OFF COAST OF CENTRAL AMERICA 

P: 19APR2019 115025     2.0N   85.0W 4.0-5.4 BAAAA  So. of Panama              

 

O: 16APR2019 04:04:51  14.5N   90.6W mb=4.5  EMSC   GUATEMALA                    

P: 14APR2019 115054    13.0N   90.0W 3.5-5.3 ABAAA  Guatemala                  

 

NEIC reported this earthquake of M 4.5 in Guatemala was felt with intensity V in Guatemala at Petapa, Villa Canales and Amatitlan; IV in Villa Nueva, Mixco, Praijanes, and San Lucas and II-III in the area(s) of Santa Catarina, Guatemala City, San Jose, Guatemala.

 

O: 15APR2019 14:20:18  15.8N   95.5W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 14APR2019 115068    16.0N   96.0W 3.5-5.4 AAAAA  Oaxaca, Mexico             

 

O: 16APR2019 02:20:04  16.2N   98.2W ML=4.3  EMSC   OAXACA, MEXICO               

O: 16APR2019 02:34:57  16.3N   98.1W ML=4.1  EMSC   OAXACA, MEXICO               

O: 15APR2019 21:50:30  16.6N   98.9W ML=4.0  EMSC   GUERRERO, MEXICO             

P: 15APR2019 115069    17.0N  100.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

P: 19APR2019 115068    17.0N   98.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

O: 15APR2019 08:00:16  19.0N   70.8W ML=3.2  EMSC   DOMINICAN REPUBLIC           

P: 14APR2019 115075    20.0N   72.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 15APR2019 21:09:12  19.3N   66.4W Md=3.1  EMSC   PUERTO RICO REGION           

P: 17APR2019 115070    18.0N   66.0W 3.4-5.3 ABAAA  Puerto Rico                

 

O: 15APR2019 09:49:21  19.8N   70.8W ML=3.3  EMSC   DOMINICAN REPUBLIC           

P: 14APR2019 115075    20.0N   72.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 16APR2019 00:54:11  27.8S   71.5W Mw=4.6  EMSC   OFFSHORE ATACAMA, CHILE      

O: 16APR2019 00:54     27.9S   71.4W mb=4.8  GUC    Atacama at Freirina and Huasco

P: 16APR2019 115262    28.0S   71.0W 4.0-5.6 AAAAA  Coast Central Chile        

 

CSN reported this earthquake was felt with intensity IV in  Atacama at Freirina and Huasco; III in Copiapo, Tierra Amarilla and Vallenar and II in Alto del Carmen, Chile.

 

 

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

 

AFRICA AND EUROPE

 

O: 15APR2019 21:52:42  36.3N   23.0E ML=4.0  EMSC   SOUTHERN GREECE              

P: 13APR2019 115093    36.0N   26.0E 3.0-4.7 AABAA  Aegean Sea                 

 

O: 16APR2019 01:04:54  37.6N   20.6E Mw=4.3  EMSC   IONIAN SEA                   

P: 13APR2019 115119    39.0N   21.0E 3.0-4.9 BBAAA  No. Greece                 

 

NEIC reported this earthquake of M 4.3 in the Ionian Sea, Greece was felt with intensity IV in Neapoli Volon and II-III in the area(s) of Sikeai, Thessalonika, Greece.

 

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

 

SOUTHWEST PACIFIC

 

O: 15APR2019 23:42:54  10.4S  161.4E mb=5.3  EMSC   SOLOMON ISLANDS              

P: 13APR2019 115258    11.0S  162.0E 4.0-5.6 AAAAA  Vanuatu Islands            

 

O: 15APR2019 08:18:49  20.9S  178.7W mb=4.1  EMSC   FIJI REGION                  

O: 16APR2019 02:02:54  21.9S  179.6W mb=4.8  EMSC   FIJI REGION                  

P: 12APR2019 115270    22.0S  179.0W 4.0-5.8 BAAAA  Tonga Islands              

 

O: 15APR2019 07:57:52  24.2S  179.9E mb=4.2  EMSC   SOUTH OF FIJI ISLANDS        

P: 12APR2019 115271    23.0S  179.0E 4.0-5.7 BBAAA  Tonga/Fiji                 

 

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: 15APR2019 14:30:52  38.2N  140.4E mb=4.5  EMSC   EASTERN HONSHU, JAPAN        

P: 17APR2019 115125    39.0N  142.0E 4.0-5.5 AAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 15APR2019 13:50:28  32.9N  116.3W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 AAAAA  So. California             

 

O: 15APR2019 15:21:02  33.5N  116.4W ML=3.0  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115135    33.7N  116.1W 2.5-4.5 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 Indian Wells, Thermal, San Diego and Riverside, California.

 

O: 15APR2019 21:03:00  33.9N  117.2W Ml=2.3  EMSC   GREATER LOS ANGELES AREA, CALI

P: 16APR2019 115138    34.3N  117.5W 2.5-4.6 AAAAA  So. California             

 

O: 15APR2019 20:40:02  34.9N  119.3W Ml=2.1  EMSC   CENTRAL CALIFORNIA           

P: 12APR2019 115140    34.7N  119.0W 2.5-4.5 BAAAA  So. California             

 

O: 15APR2019 19:37:00  40.4N  125.3W Md=2.8  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 14APR2019 115190    40.9N  126.3W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

 

O: 15APR2019 18:24:08  37.4N  118.5W Md=2.0  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 18:07:26  37.4N  118.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 19:04:36  37.4N  118.5W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 16APR2019 01:09:44  37.4N  118.5W Md=2.7  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 14:19:16  37.4N  118.5W Md=2.9  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 22:39:17  37.4N  118.5W Mh=2.1  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 15:58:47  37.4N  118.5W Mw=3.4  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 12:20:25  37.4N  118.5W ml=2.2  EMSC   CENTRAL CALIFORNIA

O: 15APR2019 17:55:58  37.4N  118.5W ML=4.2  EMSC   CENTRAL CALIFORNIA           

P: 13APR2019 115095    37.3N  119.4W 2.5-4.6 AAAAA  California/Nevada area     

P: 13APR2019 115098    38.4N  118.2W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 15APR2019 12:10:26  38.8N  122.8W Md=2.0  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 13:06:39  38.8N  122.8W Md=2.0  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 11:56:18  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 12:05:26  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 15:18:47  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 16APR2019 01:23:14  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA

O: 15APR2019 11:54:03  38.8N  122.8W mw=4.1  ANSS   NW of The Geysers

O: 15APR2019 11:54:03  38.8N  122.8W Mw=4.1  EMSC   NORTHERN CALIFORNIA          

P: 13APR2019 115102    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

ALASKA

 

O: 15APR2019 13:11:35  55.4N  158.4W ML=3.0  EMSC   ALASKA PENINSULA             

P: 15APR2019 115203    55.8N  157.7W 3.5-5.0 AAAAA  Alaska Peninsula           

 

O: 16APR2019 00:08:11  56.6N  154.0W ML=3.0  EMSC   KODIAK ISLAND REGION, ALASKA 

P:  9APR2019 114925    56.8N  155.7W 3.5-5.1 CAAAA  Alaska Peninsula           

P: 15APR2019 115203    55.8N  157.7W 3.5-5.0 AABAA  Alaska Peninsula           

 

O: 15APR2019 19:20:52  59.0N  151.9W ml=3.0  EMSC   KODIAK ISLAND REGION, ALASKA 

P: 16APR2019 115232    61.0N  151.4W 3.2-5.0 ABAAA  Central Alaska             

 

O: 15APR2019 14:25:27  60.7N  141.5W ML=3.7  EMSC   SOUTHERN ALASKA              

P: 13APR2019 115231    61.0N  140.0W 3.2-5.4 AAAAA  Central Alaska             

 

O: 15APR2019 14:54:33  61.7N  150.7W ML=3.1  EMSC   SOUTHERN ALASKA              

P: 14APR2019 115232    61.3N  150.1W 3.2-5.3 AAAAA  Central Alaska             

 

O: 16APR2019 05:18:10  66.3N  157.0W ml=3.1  EMSC   NORTHERN ALASKA              

P: 14APR2019 115227    65.1N  154.4W 3.2-5.1 ABBAA  Northern Alaska            

 

O: 15APR2019 14:25:27  60.6N  141.5W MB=4.0  ECAN Yakutat, AK                    

P: 13APR2019 115231    61.0N  140.0W 3.2-5.4 AAAAA  Central Alaska              

 

O: 16APR2019 05:07:47  66.3N  157.2W ML=4.7  EMSC   NORTHERN ALASKA

O: 16APR2019 06:22:15  66.3N  157.5W ml=3.0  EMSC   NORTHERN ALASKA

O: 16APR2019 05:35:46  66.3N  157.5W ml=3.1  EMSC   NORTHERN ALASKA

O: 16APR2019 05:18:10  66.3N  157.0W ml=3.1  EMSC   NORTHERN ALASKA              

P: 14APR2019 115227    65.1N  154.4W 3.2-5.1 ABBAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 15APR2019 22:42:54  47.3N  118.6W Ml=2.0  EMSC   WASHINGTON                   

P: 13APR2019 115178    47.7N  117.4W 2.0-3.9 AAAAA  Montana/Idaho              

 

ROCKY MOUNTAINS REGION

 

O: 15APR2019 15:05:03  47.0N  112.7W Ml=2.6  EMSC   WESTERN MONTANA              

P: 14APR2019 115177    45.7N  112.1W 2.0-4.1 ABAAA  Montana/Idaho               

 

EASTERN U.S./CANADA

 

O: 15APR2019 16:34:22  35.1N   95.4W mb=2.4  EMSC   OKLAHOMA                     

P: 16APR2019 115149    35.0N   97.0W 2.0-3.9 AABAA  Southern Plains            

 

O: 14APR2019 09:17:28  50.8N   64.0W MB=2.3  ECAN Mingan, QC                      

P: 19APR2019 115166    49.0N   66.0W 2.0-4.0 BBBAA  E. of Maine                

 

O: 14APR2019 08:40:21  49.1N   67.9W MB=1.8  ECAN Baie-Comeau, QC                

P: 18APR2019 115174    49.3N   67.5W 2.0-3.9 BAAAA  Maine                       

 

O: 14APR2019 06:02:48  72.5N   66.5W MB=2.4  ECAN Clyde River, NU                

 

HAWAII

 

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

 

 

 

 

MODERATE EVENTS IN NORTHERN PHIIPPINES; RAT ISLANDS, ALEUTIANS

 

EARTHQUAKE SUMMARY FOR APRIL 14, 2019

 

It was a relatively quiet day in global seismicity. The strongest earthquakes were of M 5.2-5.3 and occurred in the northern Philippines and in the Rat Islands, Aleutians, Alaska.  PHIVOLCS reported the earthquake in the northern Philippines was felt with intensity IV in Calayan, Cagayan, III in Pasuquin, Pagudpud, Bangui, Adams and Laoag, Ilocos Norte and II in Sinait, Ilocos Sur; Bacarra, Currimao, Badoc and Burgos, Ilocos, Norte, Philippines

An event of M 5.6 hit about 100 km southwest of today's epicenter on March 2, 2019 and an M 5.5 occurred at today's epicenter on January 24, 2019. Today's event is the strongest aftershock to date of the January event. Forecasts 115060 and 115090 had expected today's activity was likly in mid-April.

 

O: 15APR2019 01:33:00  19.2N  121.1E Mw=5.1  EMSC   BABUYAN ISL REGION, PHILIPPINE

O: 15APR2019 01:32:59  19.2N  120.9E MS=5.2  PHI  Felt with intensity IV

P: 13APR2019 115060    18.0N  120.0E 3.5-4.9 ABAAA  Luzon, Philippines         

P: 20APR2019 115090    20.0N  121.0E 4.0-5.4 BAAAA  Taiwan                     

 

The strongest earthquake in the U.S., Canada or the world today was an M 5.3 in the Rat Islands, Aleutians, Alaska. It was not reported felt in this remote area. The last earthquake within about 200 km of this epicenter in the Rat Islands with M>=5.3 occurred on April 2, 2019 with M 6.4 and prior to that an M 6.6 on October 8, 2017. Today's event is probably an aftershock of the April 2 M 6.4.   Forecast 114938 had expected today's event within about 10 km of the epicenter was likely around April 11. This epicenter is at 101 degrees from the M 7.5 in Ecuador of February 22, 2019 and may have been promoted by concentrated energy from that event.

 

O: 14APR2019 15:30:36  52.0N  178.1E Mw=5.3  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 11APR2019 114938    52.0N  178.0E 4.0-6.0 BAAAA  Rat Islands                

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O: 15APR2019 06:34:32  34.3N   45.6E mb=4.3  EMSC   IRAN-IRAQ BORDER REGION      

P: 17APR2019 115144    33.0N   48.0E 3.8-5.2 ABBAA  So. Iran                   

 

O: 14APR2019 13:29:00  35.7N   49.0E ML=4.0  EMSC   WESTERN IRAN                 

P: 19APR2019 115121    36.0N   49.0E 3.8-5.4 BAAAA  No. Iran                   

 

O: 14APR2019 19:59:34  37.6N   57.3E mb=4.2  EMSC   NORTHEASTERN IRAN            

P: 17APR2019 115171    40.0N   55.0E 4.0-5.4 BCBAA  Kazakhstan                 

 

NEIC reported this earthquake of M 4.2 in Northeastern Iran  was felt with intensity V in Bicnord, Khorasan, Iran and II-III in the area(s) of Yazd, Iran.

 

O: 15APR2019 01:39:42  22.7N   93.2E ML=5.0  EMSC   MYANMAR-INDIA BORDER REGION  

P: 15APR2019 115083    23.0N   94.0E 4.0-5.4 AAAAA  Myanmar                    

 

NEIC reported this earthquake of M 4.7 in Burma was felt with intensity II-III in the area(s) of Lunglei Mizoram, India and Chattagam, Bangladesh.

 

O: 14APR2019 22:42:46  29.7N   81.5E mb=4.0  EMSC   NEPAL                        

P: 15APR2019 115158    30.0N   81.0E 3.8-5.2 AAAAA  Xizang                     

 

O: 14APR2019 18:31:09  32.4N   89.3E mb=4.7  EMSC   WESTERN XIZANG               

P: 14APR2019 115158    30.0N   90.0E 3.8-5.4 ACAAA  Xizang                     

P: 14APR2019 115160    35.0N   90.0E 3.8-5.2 ACAAA  Xizang                     

 

O: 15APR2019 05:32:17  52.2N  157.2E mb=4.6  EMSC   KAMCHATKA PENINSULA, RUSSIA  

P: 18APR2019 115213    51.0N  158.0E 4.0-5.9 BBAAA  Kamchatka                  

 

O: 14APR2019 11:20:56  44.3N   81.2E mb=4.7  EMSC   NORTHERN XINJIANG, CHINA     

P: 11APR2019 114899    42.0N   83.0E 4.0-5.4 BCBAA  Kirgizstan/Xinjiang        

 

NEIC reported this earthquake of M 4.0 in Xinjiang, China was felt with intensity II-III in the area(s) of Yining, Xinjiang, China.

 

INDONESIA AND PHILIPPINES

 

O: 15APR2019 01:33:00  19.2N  121.1E Mw=5.1  EMSC   BABUYAN ISL REGION, PHILIPPINE

O: 15APR2019 01:32:59  19.2N  120.9E MS=5.2  PHI  Felt with intensity IV

P: 13APR2019 115060    18.0N  120.0E 3.5-4.9 ABAAA  Luzon, Philippines         

P: 20APR2019 115090    20.0N  121.0E 4.0-5.4 BAAAA  Taiwan                      

 

O: 15APR2019 04:48:54   1.8S  139.4E ML=4.1  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 14APR2019 115040     4.0S  142.0E 4.0-5.4 ACCAA  Papua New Guinea           

 

O: 14APR2019 17:17:32   1.9S  122.6E mb=4.6  EMSC   SULAWESI, INDONESIA           

O: 14APR2019 17:17:34  02.0S  122.7E MS=4.9  BMG  Felt with intensity III

O: 14APR2019 21:18:32   1.9S  122.7E ML=4.2  EMSC   SULAWESI, INDONESIA          

O: 15APR2019 03:09:21   1.9S  122.7E ML=4.2  EMSC   SULAWESI, INDONESIA          

O: 14APR2019 17:16:05   2.0S  122.6E ML=4.7  EMSC   SULAWESI, INDONESIA          

O: 15APR2019 02:48:01   2.0S  122.6E ML=4.8  EMSC   SULAWESI, INDONESIA          

O: 15APR2019 02:57:50   2.9S  119.5E ML=4.1  EMSC   SULAWESI, INDONESIA          

P: 16APR2019 115045     1.0S  123.0E 4.0-5.7 AAAAA  Sulawesi area              

 

BMG reported this earthquake of M 4.6-4.9 was felt with intensity III in Morowali, Sulawesi, Indonesia.

 

O: 14APR2019 17:28:06   3.1S  127.9E ML=4.2  EMSC   SERAM, INDONESIA             

P: 17APR2019 115029     1.0S  127.0E 4.0-5.5 BCAAA  Ceram area                 

 

O: 14APR2019 15:10:07   3.9N  125.9E ML=4.4  EMSC   KEPULAUAN SANGIHE, INDONESIA 

P: 12APR2019 115021     4.0N  127.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 14APR2019 08:12:07   7.4N   94.5E mb=4.7  EMSC   NICOBAR ISLANDS, INDIA REGION

P: 11APR2019 114763     8.0N   94.0E 4.0-5.8 BAAAA  Nicobar Islands            

 

O: 15APR2019 02:11:47   7.5S  120.0E ML=4.0  EMSC   FLORES SEA                   

P: 16APR2019 115031     7.0S  121.0E 4.0-5.4 AAAAA  Flores Island area         

 

O: 15APR2019 06:49:35   9.1S  120.4E mb=4.7  EMSC   SUMBA REGION, INDONESIA      

O: 15APR2019 06:49:36  09.3S  120.6E MS=4.5  BMG  Felt with intensity III-IV

P: 16APR2019 115031     7.0S  121.0E 4.0-5.4 ACAAA  Flores Island area         

 

BMG reported this earthquake was felt with intensity III-IV in Waingapu, Indonesia.

 

 

CENTRAL AND SOUTH AMERICA

 

O: 14APR2019 19:28:27   2.3S   81.5W ML=4.1  EMSC   NEAR COAST OF ECUADOR        

P: 19APR2019 115030     1.0S   80.0W 4.0-5.4 BBBAA  Ecuador                    

 

O: 15APR2019 03:11:29   3.0S   75.5W mb=4.5  EMSC   NORTHERN PERU                

P: 14APR2019 115030     2.0S   78.0W 4.0-5.7 AACAA  Ecuador                    

 

O: 14APR2019 19:31:30  14.7N   92.3W ML=4.3  EMSC   CHIAPAS, MEXICO              

P: 12APR2019 115051    14.0N   93.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

O: 14APR2019 19:39:54  14.8N   95.9W ML=4.2  EMSC   OFF COAST OF OAXACA, MEXICO  

P: 14APR2019 115068    16.0N   96.0W 3.5-5.4 ABAAA  Oaxaca, Mexico             

 

O: 14APR2019 22:11:51  16.1N   97.5W ML=4.1  EMSC   OAXACA, MEXICO               

O: 14APR2019 08:29:19  16.3N   98.1W ML=4.0  EMSC   OAXACA, MEXICO               

P: 17APR2019 115068    15.0N   98.0W 3.5-5.1 BBAAA  Oaxaca, Mexico             

 

O: 14APR2019 16:48:18  17.5N   95.2W Mw=5.0  EMSC   OAXACA, MEXICO               

P: 15APR2019 115051    17.0N   95.0W 3.5-5.3 AAAAA  Chiapas, Mexico            

 

NEIC reported this earthquake of M 5.0 in Veracruz, Mexico was felt with intensity II-III in the area(s) of Oaxaca, Tabasco and Mexico State, Mexico.

 

O: 14APR2019 13:36:48  17.9N   68.4W ML=3.2  EMSC   DOMINICAN REPUBLIC REGION    

O: 14APR2019 10:44:09  17.9N   69.2W ML=3.5  EMSC   DOMINICAN REPUBLIC REGION    

O: 14APR2019 20:51:26  18.1N   68.7W ML=3.3  EMSC   DOMINICAN REPUBLIC REGION    

O: 14APR2019 21:01:52  19.1N   69.4W ML=3.1  EMSC   DOMINICAN REPUBLIC REGION    

P: 13APR2019 115070    18.0N   69.0W 3.4-5.1 AAAAA  Puerto Rico                 

 

O: 14APR2019 10:35:12  24.0S   67.0W mb=4.4  EMSC   SALTA, ARGENTINA             

P: 14APR2019 115260    23.0S   64.0W 4.0-5.6 AACAA  Argentina                  

 

O: 14APR2019 12:07:55  33.1S   70.3W mb=4.4  EMSC   VALPARAISO, CHILE             

P: 15APR2019 115274    33.0S   68.0W 4.0-5.6 AABAA  Central Chile              

 

NEIC reported this earthquake of M 4.4 in Central Chile was felt with intensity II-III in the area(s) of Los Andes, Valparaiso and Santiago, Chile.

 

 

AFRICA AND EUROPE

 

O: 15APR2019 04:41:29  38.8N   38.2E mb=4.4  EMSC   EASTERN TURKEY               

P: 19APR2019 115152    38.0N   39.0E 3.5-5.0 BAAAA  Turkey                     

 

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

 

SOUTHWEST PACIFIC

 

O: 14APR2019 22:05:24  20.9S  178.4W mb=4.5  EMSC   FIJI REGION                  

P: 12APR2019 115270    22.0S  179.0W 4.0-5.8 ABAAA  Tonga Islands              

 

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

 

OCEAN RIDGES

 

O: 15APR2019 05:15:48  33.7N   38.2W mb=4.9  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 14APR2019 115122    32.0N   41.0W 4.0-5.7 ABBAA  No. Mid-Atlantic Ridge     

 

O: 14APR2019 17:29:06  58.6S   24.9W mb=4.5  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 12APR2019 115292    56.0S   24.0W 4.0-5.8 ACAAA  So. Sandwich Islands       

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

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

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

 

JAPAN AND KURIL ISLANDS

 

O: 14APR2019 08:45:54  26.1N  129.4E mb=4.7  EMSC   RYUKYU ISLANDS, JAPAN        

P: 12APR2019 115088    29.0N  129.0E 4.0-5.4 ACAAA  Ryukyu Islands             

 

O: 14APR2019 21:23:20  45.1N  149.8E mb=4.5  EMSC   KURIL ISLANDS                

P: 15APR2019 115169    44.0N  149.0E 3.5-5.6 ABAAA  Hokkaido, Japan            

 

O: 14APR2019 20:28:30  42.5N  144.8E Mw=5.0  EMSC   HOKKAIDO, JAPAN REGION       

P: 13APR2019 115168    42.0N  143.0E 3.5-5.5 AABAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 14APR2019 12:27:19  33.2N  115.7W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115133    32.9N  115.6W 2.5-4.4 AAAAA  So. California             

 

O: 14APR2019 15:24:12  33.3N  116.4W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 13APR2019 115135    33.7N  116.1W 2.5-4.5 AAAAA  So. California             

 

O: 14APR2019 13:51:27  34.9N  119.0W ML=2.1  EMSC   CENTRAL CALIFORNIA           

P: 13APR2019 115137    34.0N  118.7W 2.5-4.5 AAAAA  So. California             

P: 18APR2019 115140    35.0N  119.2W 2.5-4.5 BAAAA  So. California             

 

O: 15APR2019 00:01:48  34.9N  120.6W Ml=2.1  EMSC   CENTRAL CALIFORNIA           

P: 15APR2019 115126    35.6N  121.3W 2.5-4.6 AAAAA  Off So. California         

 

O: 15APR2019 01:17:03  36.5N  121.1W Md=2.3  EMSC   CENTRAL CALIFORNIA           

P: 11APR2019 114840    36.4N  121.0W 2.5-4.4 BAAAA  Central California         

 

O: 14APR2019 17:58:54  36.6N  121.2W Md=2.9  EMSC   CENTRAL CALIFORNIA           

O: 15APR2019 03:34:03  36.6N  121.3W Md=2.3  EMSC   CENTRAL CALIFORNIA           

O: 14APR2019 09:03:45  36.7N  121.3W Md=2.1  EMSC   CENTRAL CALIFORNIA           

P: 16APR2019 115100    36.7N  121.4W 2.5-4.4 AAAAA  Central California         

 

O: 15APR2019 01:08:22  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA          

P: 13APR2019 115102    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 15APR2019 02:14:09  40.0N  122.3W Md=2.7  EMSC   NORTHERN CALIFORNIA          

P: 15APR2019 115187    40.4N  122.2W 2.5-4.8 AAAAA  Northern California        

 

 

ALASKA

 

O: 14APR2019 15:30:36  52.0N  178.1E Mw=5.3  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 11APR2019 114938    52.0N  178.0E 4.0-6.0 BAAAA  Rat Islands                

 

O: 14APR2019 10:37:50  53.9N  158.1W ml=3.1  EMSC   SOUTH OF ALASKA              

P: 15APR2019 115203    55.8N  157.7W 3.5-5.0 ABAAA  Alaska Peninsula            

 

O: 14APR2019 23:33:41  68.8N  143.1W ML=3.2  EMSC   NORTHERN ALASKA              

P: 17APR2019 115228    69.1N  144.4W 3.2-5.1 BAAAA  Northern Alaska            

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

No events of M>=2 were located in the northwestern U.S. or western Canada today.

 

ROCKY MOUNTAINS REGION

 

O: 14APR2019 09:47:02  36.9N  104.9W ML=2.8  EMSC   NEW MEXICO                   

P: 17APR2019 115106    37.3N  104.8W 2.0-4.0 BAAAA  Colorado area              

 

O: 14APR2019 07:21:53  46.9N  112.7W Ml=2.7  EMSC   WESTERN MONTANA              

P: 14APR2019 115177    45.7N  112.1W 2.0-4.1 ABAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 15APR2019 00:40:20  35.1N   95.4W mb=2.5  EMSC   OKLAHOMA                     

P: 16APR2019 115149    35.0N   97.0W 2.0-3.9 AAAAA  Southern Plains            

 

HAWAII

 

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