SEISMCITIY LEVELS RETURN TO BACKGROUND

 

EARTHQUAKE SUMMARY FOR MAY 22, 2016

 

Triggering effects from tropical and geomagnetic storms were muted today and global seismicity followed pattern. After several days of strong earthquakes in Ecuador and unusual events in Indonesia and northern Australia, seismicity today presented few unusual earthquakes. The strongest earthquake of the day was an M 5.4-5.5 deep below Bolivia which was not reported felt in that area. The most unusual quake was an M 4.7 in the Arctic Ocean north of Siberia. The strongest earthquake in North America was an M 5.0 south of Guatemala. Otherwise there were few events of note today.

 

The most unusual earthquakes of the day were a pair of events of M 4.7 in the Arctic Ocean north of the island of Severnaya Zenlya. This is part of the typical Arctic Ocean seismicity but larger in size. It was not reported felt in this remote region (with the exception of a few whales). The sub-sonics of earthquakes can disrupt sound detection in aquatic mammals and occasionally leads them off course to groundings especially in the far north. Forecast 98439 expected an Arctic Ocean event in late May within about 300 km of this epicenter. The last earthquake of M>=4.7 in this region of the Arctic occurred September 13, 2012 (M 5.1) and prior to that, the largest in the past 25 years - an  M 5.8 on October 7, 2009. At the time, this summary noted in regard to this event and regional seismicity:

 

"The first strong earthquake of the day occurred in the Arctic Ocean with  M 5.9 north of Siberia. It followed an earlier event to the southeast in the Laptev Sea of M 4.5. This is the strongest earthquake to hit this region in at least 20 years. Only one other earthquake of similar or larger size has every been located in this area - an M 5.9 on Oct. 5, 1959, almost exactly 50 years ago today. In the broader region two earthquakes of M>=6 have hit in the past century - an M 6.0 on Feb. 17, 1992 and an M 6.2 on August 25, 1964. The largest earthquake ever recorded in the general areas occurred 100 years ago on April 10, 1909 with M 6.8." (October 8, 2009)

 

 

O: 22MAY2016 01:06:23  84.5N  107.3E mb=4.7  EMSC NORTH OF SEVERNAYA ZEMLYA      

O: 22MAY2016 13:40:40  84.5N  107.3E mb=4.7  EMSC NORTH OF SEVERNAYA ZEMLYA      

P: 28MAY2016 98439     82.0N  119.0W 4.0-5.7 CCAAA  Arctic Ocean Region        

 

The strongest earthquake in the U.S. or Canada today was an M 3.6 in the Kodiak region of Alaska.  NEIC reported this earthquake of M 3.6 near Kodiak, Alaska was felt with intensity II-III in the area(s) of Kodiak, Alaska.  Forecast 98423 had expected regional seismicity most likely to occur north of this around May 25.

 

O: 23MAY2016 02:18:27  58.3N  151.5W Ml=3.6  EMSC KODIAK ISLAND REGION, ALASKA   

P: 25MAY2016 98423     60.7N  151.8W 3.2-4.9 ACAAA  Central Alaska             

 

The strongest earthquake in the world today was an M 5.4-5.5 near Tarija, Bolivia. This earthquake was not reported felt. The last earthquake with an epicenter within about 200 km of this epicenter with M>=5.4 occurred on November 29, 2015 with M 5.9. Forecast 98453 had expected the area to be active at the end of May.

 

O: 23MAY2016 03:43:12  22.1S   67.3W mb=4.9  EMSC POTOSI, BOLIVIA                

O: 22MAY2016 12:20:43  22.4S   64.2W mb=5.4  EMSC TARIJA, BOLIVIA                

O: 22MAY2016 12:20:42  22.4S   64.2W mb=5.5  ANSS   WNW of Tartagal Argentina

P: 28MAY2016 98453     22.0S   67.0W 4.0-5.6 BAAAA  Argentina                  

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: 22MAY2016 09:08:06  41.7N  120.1E mb=4.8  ANSS   WNW of Chaoyang China        

P: 22MAY2016 98374     45.0N  124.0E 3.5-5.6 ACCAA  NE China                   

 

NEIC reported this earthquake of M 4.8 in northern China was felt with intensity II-III in the area(s) of Chengde, Hebei and in Beijing at Shunyi and Peking, Beigin 

 

O: 22MAY2016 10:55:04  43.6N   85.1E mb=3.9  EMSC NORTHERN XINJIANG, CHINA       

P: 24MAY2016 98368     42.0N   79.0E 4.0-5.6 ABCAA  Kirgizstan/Xinjiang        

 

O: 22MAY2016 15:27:07  36.5N   70.7E mb=4.4  ANSS   SSW of Jarm Afghanistan      

P: 22MAY2016 98315     37.0N   71.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

NEIC reported an earthquake of M 4.8 in northern China was felt with intensity II-III in the area(s) of Chengde, Hebei and in Beijing at Shunyi and Peking, Beigin 

 

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

 

INDONESIA AND PHILIPPINES

 

O: 23MAY2016 03:31:08   9.8S  119.3E mb=4.3  EMSC SUMBA REGION, INDONESIA        

O: 23MAY2016 03:31:08   9.8S  119.3E mb=4.3  ANSS   SSE of Bogorawatu Indonesia

O: 23MAY2016 03:31:09   9.6S  119.5E mb=4.6  BMG  Felt with intensity III-IV in Su

P: 20MAY2016 98184     11.0S  118.0E 4.0-5.4 BBBAA  So. of Indonesia           

 

BMG reported this earthquake was felt with intensity III-IV in Sumba Barat, Indonesia.

 

O: 22MAY2016 12:09:54   8.4S  110.3E mb=4.1  BMG  Felt with intensity I-II in Para

P: 26MAY2016 98253      9.0S  111.0E 4.0-5.4 BAAAA  So. of Java                

 

BMG reported this earthquake was felt with intensity I-II in Parangtritis, Bali, Indonesia.

 

 

O: 22MAY2016 23:58:12  20.5N  120.5E mb=4.6  EMSC PHILIPPINE ISLANDS REGION      

P: 29MAY2016 98273     19.0N  120.0E 3.5-4.9 CBAAA  Luzon, Philippines         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 23MAY2016 07:09      9.7S   75.6W mb=4.0  IGP    Tingo Maria-Huanuco, Peru    

P: 23MAY2016 98238      9.0S   75.0W 3.5-5.1 AAAAA  Brazil                     

 

O: 22MAY2016 11:47     30.6S   71.7W mb=5.0  GUC    La Serena, Coquimbo, Ovalle, F

O: 22MAY2016 11:47:09  30.6S   71.8W mb=5.1  EMSC OFFSHORE COQUIMBO, CHILE       

P: 23MAY2016 98466     31.0S   71.0W 4.0-5.8 AAAAA  Central Chile              

 

CSN reported this earthquake was felt with intensity III in  La Serena, Coquimbo, Ovalle, Felt in Coquimbo, Chile.

NEIC reported this earthquake of M 5.0 in Central Chile was felt with intensity IV in the area(s) of San Felipe and Llaillay, Valparaiso, Chile.

 

O: 22MAY2016 14:51:22  13.7N   90.5W mb=5.0  EMSC OFFSHORE GUATEMALA             

P: 23MAY2016 98266     14.0N   89.0W 3.5-5.1 AABAA  Coast of Central America   

 

NEIC reported this earthquake of M 5.0 in Guatemala was felt with intensity IV in Fraijanes, Guatemala and II-III in the area(s) of San Jose, Santa Catarina Pinula, Antigua Guatemala, Oanahachel, Solola, and San Jose, Escuinta.

EMSC reported it was felt in Antigua Guatemala and in Guatemala City.

 

O: 23MAY2016 03:36:17  18.3N   67.9W Md=3.0  EMSC MONA PASSAGE, PUERTO RICO      

O: 22MAY2016 22:34:07  18.5N   66.4W Md=3.1  EMSC PUERTO RICO                    

P: 23MAY2016 98281     19.0N   67.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 23MAY2016 05:15:15  19.2N   64.7W Md=3.0  EMSC VIRGIN ISLANDS REGION          

P: 21MAY2016 98036     19.0N   65.0W 3.4-5.2 AAAAA  Puerto Rico                

 

O: 23MAY2016 03:43:12  22.1S   67.3W mb=4.9  EMSC POTOSI, BOLIVIA                

O: 22MAY2016 12:20:43  22.4S   64.2W mb=5.4  EMSC TARIJA, BOLIVIA                

O: 22MAY2016 12:20:42  22.4S   64.2W mb=5.5  ANSS   WNW of Tartagal Argentina

P: 28MAY2016 98453     22.0S   67.0W 4.0-5.6 BAAAA  Argentina                  

 

O: 22MAY2016 09:00:05  14.7N   92.7W ML=3.9  UNAM SUROESTE de HUIXTLA, CHIS *: 14.

P: 26MAY2016 98269     14.0N   92.0W 3.5-5.3 BAAAA  Guatemala                  

 

O: 22MAY2016 09:35:26  17.4N   94.6W ML=3.8  UNAM SUR de JALTIPAN DEMORELOS, VER *

O: 22MAY2016 10:32:05  15.7N   95.8W ML=3.9  UNAM ESTE de CRUCECITA, OAX *: 15.78°,

O: 22MAY2016 10:11:50  15.4N   95.9W ML=3.8  UNAM SURESTE de CRUCECITA, OAX *: 15.

P: 16MAY2016 98018     16.0N   95.0W 3.5-5.3 CAAAA  Chiapas, Mexico            

 

O: 22MAY2016 10:30:43  16.0N   97.5W ML=3.4  UNAM NOROESTE de RIO GRANDE, OAX *: 1

O: 22MAY2016 11:02:45  16.0N   97.7W ML=3.5  UNAM OESTE de RIO GRANDE, OAX *: 16.04°

O: 22MAY2016  2:18:20  16.2N   97.8W ML=3.4  UNAM SURESTE de PINOTEPA NACIONAL, OAX

O: 22MAY2016  2:04:48  16.3N   97.8W ML=3.6  UNAM ESTE de PINOTEPA NACIONAL, OAX *:

O: 22MAY2016  6:18:34  16.3N   97.9W ML=3.3  UNAM ESTE de PINOTEPA NACIONAL, OAX *:

O: 22MAY2016  1:54:10  16.3N   98.0W ML=3.2  UNAM SURESTE de PINOTEPA NACIONAL, OAX

O: 22MAY2016 10:22:44  16.1N   98.0W ML=3.3  UNAM SUR de PINOTEPA NACIONAL, OAX *: 1

O: 22MAY2016  8:44:47  16.3N   98.2W ML=3.2  UNAM OESTE de PINOTEPA NACIONAL, OAX *:

O: 22MAY2016  7:04:45  16.5N   98.4W ML=3.2  UNAM SUR de OMETEPEC, GRO *: 16.56°, -9

O: 22MAY2016 05:35:17  16.4N   98.5W ML=3.4  UNAM SUR de OMETEPEC, GRO *: 16.47°,

P: 24MAY2016 98280     16.0N   98.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 22MAY2016 01:51:58  18.0N   99.4W ML=3.7  UNAM SUROESTE de CD DE HUITZUCO, GRO

P: 21MAY2016 98050     20.0N   99.0W 3.0-4.6 ABAAA  Northern Mexico            

 

O: 22MAY2016 02:55:48  16.7N   99.5W ML=3.4  UNAM SUROESTE de SAN MARCOS, GRO *: 16.

O: 22MAY2016 01:40:05  16.6N   99.7W ML=3.6  UNAM SUROESTE de SAN MARCOS, GRO *: 16.

O: 22MAY2016 03:22:38  16.9N  100.0W ML=3.6  UNAM OROESTE de ACAPULCO, GRO *: 16.91°

O: 22MAY2016 10:39:00  18.3N  100.8W ML=3.6  UNAM SUROESTE de CD ALTAMIRANO, GRO *:

O: 22MAY2016 02:25:46  17.0N  100.8W ML=3.9  UNAM SUROESTE de TECPAN, GRO *: 17.03

P: 19MAY2016 98035     17.0N  100.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

O: 22MAY2016 11:42:48  17.4N  101.4W ML=3.4  UNAM SUROESTE de PETATLAN, GRO *: 17.

O: 22MAY2016 13:24:07  17.8N  101.6W ML=4.1  UNAM NOROESTE de ZIHUATANEJO, GRO *: 17

P: 24MAY2016 98275     17.0N  102.0W 3.5-5.4 AAAAA  Michoacan, Mexico          

 

O: 22MAY2016 01:03:18  15.4N  104.3W ML=4.4  UNAM  SUROESTE de LA MIRA, MICH *: 15

P: 12MAY2016 98028     15.0N  104.0W 3.5-5.3 CAAAA  Michoacan, Mexico          

 

O: 22MAY2016 07:38:18  32.3N  115.1W ML=3.4  UNAM OROESTE de GPE VICTORIA(KM.43),

P: 27MAY2016 98335     32.9N  115.6W 2.5-4.7 BAAAA  So. California             

 

AFRICA AND EUROPE

 

O: 22MAY2016 09:40:12  34.9N   38.1E ML=4.0  EMSC SYRIA                          

P: 23MAY2016 98348     35.0N   34.0E 3.5-4.9 AACAA  Turkey                      

 

O: 22MAY2016 11:01:23  37.7N    4.2W ML=3.6  EMSC SPAIN                          

P: 28MAY2016 98320     37.0N    4.0W 3.5-5.1 CAAAA  Morocco/Spain              

 

O: 23MAY2016 02:04:40  43.5N   41.0E ML=3.8  EMSC CAUCASUS REGION, RUSSIA        

P: 23MAY2016 98353     39.0N   41.0E 3.5-4.9 ACAAA  Turkey                     

 

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

 

SOUTHWEST PACIFIC

 

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

 

OCEAN RIDGES

 

O: 22MAY2016 13:40:40  84.5N  107.3E mb=4.7  EMSC NORTH OF SEVERNAYA ZEMLYA      

P: 28MAY2016 98439     82.0N  119.0W 4.0-5.7 CCAAA  Arctic Ocean Region        

 

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

 

NEW ZEALAND AND AUSTRALIA REGION

 

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

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

 

JAPAN AND KURIL ISLANDS

 

O: 23MAY2016 06:54:00  44.3N  152.3E mb=4.5  EMSC EAST OF KURIL ISLANDS          

P: 17MAY2016 98133     45.0N  151.0E 3.5-5.6 CAAAA  So. Kurils                 

 

O: 23MAY2016 01:58:25  44.8N  147.0E mb=3.9  EMSC KURIL ISLANDS                  

P: 22MAY2016 98365     44.0N  147.0E 3.5-6.1 AAAAA  Hokkaido, Japan            

 

O: 22MAY2016 22:24:13  50.9N  158.3E mb=3.9  EMSC EAST OF KURIL ISLANDS          

P: 21MAY2016 98145     50.0N  156.0E 4.0-5.8 AABAA  Kamchatka                  

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 23MAY2016 05:04:27  40.4N  124.4W Md=2.0  EMSC OFFSHORE NORTHERN CALIFORNIA   

O: 23MAY2016 05:04:27  40.4N  124.4W md=2.0  ANSS   SSW of Ferndale California

P: 22MAY2016 98381     40.2N  124.2W 2.5-4.4 AAAAA  Off Coast of No. Calif     

 

O: 23MAY2016 09:21:15  39.6N  122.2W md=2.7  ANSS   S of Orland California       

P: 27MAY2016 98311     39.0N  123.1W 2.5-4.6 BAAAA  Central California         

 

ALASKA

 

O: 23MAY2016 02:18:27  58.3N  151.5W Ml=3.6  EMSC KODIAK ISLAND REGION, ALASKA   

P: 25MAY2016 98423     60.7N  151.8W 3.2-4.9 ACAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 23MAY2016 04:49:10  47.3N  124.1W ML=2.1  EMSC OLYMPIC PENINSULA, WASHINGTON  

P: 21MAY2016 98136     48.4N  123.2W 2.0-4.0 ABAAA  Washington state, U.S.     

 

O: 23MAY2016 06:14:10  47.4N  121.4W MD=2.4  EMSC WASHINGTON                     

P: 22MAY2016 98396     47.5N  121.8W 2.0-3.9 AAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

No earthquakes of M>=2 were located in the Rocky Mountain region today.

 

EASTERN U.S./CANADA

 

O: 23MAY2016 00:22:57  36.0N   97.2W mb=2.7  EMSC OKLAHOMA

O: 23MAY2016 01:24:18  36.0N   97.2W mb=2.8  EMSC OKLAHOMA

O: 22MAY2016 11:53:47  36.4N   97.7W mb=2.8  EMSC OKLAHOMA

O: 22MAY2016 12:00:46  36.4N   97.7W mb=3.4  EMSC OKLAHOMA

O: 22MAY2016 13:21:40  35.9N   97.4W mb=2.2  EMSC OKLAHOMA                       

P: 22MAY2016 98346     36.2N   97.5W 2.0-4.2 AAAAA  Southern Plains            

 

Earthquakes in Oklahoma today were reported "felt" with intensity IV in Stillwater, and II-III in Guthrie, Marland, Perkins, Oklahoma. The largest was an M 3.4 felt with intensity IV in Enid and II in Covington, Oklahoma.

 

HAWAII

 

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