QUIET DAY SEES MODERATE EVENTS IN TANZANIA AND NORTH ISLAND, NEW ZEALAND

 

EARTHQUAKE SUMMARY FOR AUGUST 19, 2019

 

It was an unusually quiet day in global seismicity today. No earthquakes of M>=4.8 were located in the world. This may be due to the lack of seismic promoters at this time - no major oceanic cyclones, geomagnetic storms or tidal events. A promoter, like a catalyst, causes an event to be brought forward in time by providing conditions which are more conducive to enhanced seismicity. The strongest earthquakes of the day occurred in Indonesia, Tanzania, Nicaragua and North Island New Zealand with M 4.6-4.8.

 

An unusual earthquake of M 4.6 occurred today in Tanzania.  NEIC reported this earthquake of M 4.8 in Tanzania  was felt with intensity II-III in the area(s) of Tanzania in Arusha, Moshi, Kilimanjaro and in Nairobi, Kenya. This is the strongest earthquake within about 250 km of this epicenter with M>=4.6 since an M 5.1 on July 13, 2016. Forecast 117953 had expected today's event was likely around August 16. This epicenter is at 103 degrees from the M 6.8 in Chile of August 1 and was probably promoted by energy from that source.

 

O: 20AUG2019 06:54:59   4.2S   36.7E mb=4.6  EMSC   TANZANIA                     

P: 16AUG2019 117953     5.0S   36.0E 4.0-5.3 BAAAA  Indian Ocean               

 

The event in North Island, New Zealand was reported widely felt in southern North Island. NEIC reported this earthquake of M 4.3-4.7 in North Island, New Zealand was felt with intensity II-III in the area(s) of Palmerston North, New Zealand. GEONET reported this earthquake of M 4.7 was felt with light intensity northeast of Whanganui and in southeastern North Island. More than 3563 people reported feeling this earthquake. Light to moderate intensity was reported throughout much of southern and eastern North Island and northern South Island. 1920 reports of weak intensity; 1480 of light intensity; 142 with moderate; 16 with strong shaking and 1 with severe and 4 with extreme intensity. The last earthquake with M>=4.7 within about 150 km of this epicenter in North Island was an M 4.7 on November 4, 2018 with the last of larger magnitude an M 5.9 on November 22, 2016.  Forecast 118142 had expected this event in this are was likely around August 19.

 

O: 19AUG2019 07:28:47  40.6S  176.0E mb=4.3  EMSC   NORTH ISLAND OF NEW ZEALAND  

O: 19AUG2019 07:28:47  40.5S  175.9E MS=4.7  GEONET Felt with light intensity

P: 19AUG2019 118142    39.0S  176.0E 3.0-4.4 ABAAA  North Island, N.Z.         

OTHER GLOBAL EARTHQUAKE ACTIVITY

 

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

 

ASIA

 

O: 19AUG2019 09:13:02  23.0N   70.4E ML=4.0  EMSC   GUJARAT, INDIA               

P: 20AUG2019 117994    24.0N   71.0E 3.5-4.8 AAAAA  India                      

 

O: 20AUG2019 01:08:57  30.4N   94.8E mb=4.6  EMSC   EASTERN XIZANG               

P: 14AUG2019 118048    33.0N   92.0E 3.8-5.1 CCBAA  Xizang                     

 

O: 19AUG2019 22:57:31  33.2N   46.3E ML=4.0  EMSC   IRAN-IRAQ BORDER REGION      

P: 19AUG2019 118040    32.0N   50.0E 3.8-5.2 ABCAA  So. Iran                   

 

O: 20AUG2019 00:55:46  33.7N   87.0E mb=4.1  EMSC   WESTERN XIZANG               

P: 14AUG2019 118048    34.0N   89.0E 3.8-5.1 CABAA  Xizang                     

 

O: 19AUG2019 13:14:42  45.1N   79.8E mb=4.5  EMSC   EASTERN KAZAKHSTAN           

P: 21AUG2019 118059    40.0N   78.0E 4.0-5.3 ACBAA  Kirgizstan/Xinjiang        

 

INDONESIA AND PHILIPPINES

 

O: 19AUG2019 09:14:56   0.8S  128.2E ML=4.0  EMSC   HALMAHERA, INDONESIA         

P: 17AUG2019 117949     1.0S  127.0E 4.0-5.3 AAAAA  Ceram area                 

 

O: 19AUG2019 20:05:21   1.7N  126.4E ML=4.7  EMSC   MOLUCCA SEA                  

O: 19AUG2019 16:53:37   1.9N  126.4E ML=4.2  EMSC   MOLUCCA SEA                  

P: 13AUG2019 117940     1.0N  126.0E 4.0-5.3 CAAAA  Mindanao, Philippines      

 

O: 19AUG2019 07:08:12   3.5S  119.7E ML=4.4  EMSC   SULAWESI, INDONESIA          

P: 21AUG2019 117951     7.0S  120.0E 4.0-5.3 ACAAA  Flores Island area         

 

O: 19AUG2019 17:30:49   7.4S  127.7E ML=4.0  EMSC   KEPULAUAN BARAT DAYA, INDONESI

O: 20AUG2019 06:41:56   7.7S  126.6E ML=4.3  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 18AUG2019 117951     8.0S  124.0E 4.0-5.3 AABAA  Flores Island area         

 

O: 19AUG2019 17:14:11   8.5S  119.8E ML=4.7  EMSC   FLORES REGION, INDONESIA     

P: 21AUG2019 117951     7.0S  120.0E 4.0-5.3 ABAAA  Flores Island area         

 

 

CENTRAL AND SOUTH AMERICA

 

O: 19AUG2019 21:25:51  11.0N   85.2W mb=4.4  EMSC   COSTA RICA                   

P: 18AUG2019 117981    12.0N   87.0W 3.5-5.0 AABAA  Nicaragua                  

 

O: 19AUG2019 11:37:02  12.6N   87.6W mb=4.8  EMSC   NEAR COAST OF NICARAGUA      

P: 18AUG2019 117981    12.0N   87.0W 3.5-5.0 AAAAA  Nicaragua                  

 

NEIC reported this earthquake of M 4.8 off southern Nicaragua  was felt with intensity V in El Viejo, Nicaragua and II-III in the area(s) of Managua and Carazo, Nicaragua.

 

O: 19AUG2019 23:12:34  15.0N   93.1W ML=4.2  EMSC   OFFSHORE CHIAPAS, MEXICO     

O: 19AUG2019 19:02:58  15.4N   94.7W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 18AUG2019 117966    16.0N   94.0W 3.5-5.0 AAAAA  Chiapas, Mexico            

 

O: 19AUG2019 15:25:04  16.5N   99.4W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 20AUG2019 117984    16.0N  100.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O: 20AUG2019 03:08:24  16.9N   93.9W ML=4.3  EMSC   CHIAPAS, MEXICO              

P: 18AUG2019 117966    16.0N   94.0W 3.5-5.0 AAAAA  Chiapas, Mexico            

 

O: 19AUG2019 16:04:54  20.6S   69.0W mb=4.6  EMSC   TARAPACA, CHILE              

P: 17AUG2019 118126    21.0S   68.0W 4.0-5.4 AAAAA  Argentina                  

 

O: 19AUG2019 13:49:17  29.4S   70.8W mb=4.2  EMSC   COQUIMBO, CHILE              

P: 17AUG2019 118140    30.0S   70.0W 4.0-5.3 AAAAA  Coast Central Chile        

 

O: 19AUG2019 17:37:11  37.5S   74.9W mb=4.3  EMSC   OFF COAST OF BIO-BIO, CHILE  

P: 20AUG2019 118139    37.0S   73.0W 4.0-5.3 AABAA  Central Chile              

 

 

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

 

AFRICA AND EUROPE

 

O: 20AUG2019 06:54:59   4.2S   36.7E mb=4.6  EMSC   TANZANIA                     

P: 16AUG2019 117953     5.0S   36.0E 4.0-5.3 BAAAA  Indian Ocean               

 

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

 

SOUTHWEST PACIFIC

 

O: 19AUG2019 19:05:18  20.2S  177.8W mb=4.4  EMSC   FIJI REGION                  

P: 17AUG2019 118124    18.0S  179.0W 4.0-5.3 ACAAA  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: 19AUG2019 07:28:47  40.6S  176.0E mb=4.3  EMSC   NORTH ISLAND OF NEW ZEALAND  

O: 19AUG2019 07:28:47  40.5S  175.9E MS=4.7  GEONET Felt with light intensity

P: 19AUG2019 118142    39.0S  176.0E 3.0-4.4 ABAAA  North Island, N.Z.         

 

GEONET reported this earthquake of M 4.7 was felt with light intensity northeast of Whanganui and in southeastern North Island. More than 3563 people reported feeling this earthquake. Light to moderate intensity was reported throughout much of southern and eastern North Island and northern South Island. 1920 reports of weak intensity; 1480 of light intensity; 142 with moderate; 16 with strong shaking and 1 with severe and 4 with extreme intensity.

 

JAPAN AND KURIL ISLANDS

 

No earthquakes of M>=4 were located in Japan or the Kuril Islands today.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 19AUG2019 19:28:31  31.2N  115.4W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO      

P: 17AUG2019 118035    32.9N  115.6W 2.5-4.3 ABAAA  So. California              

 

O: 19AUG2019 12:17:41  35.6N  117.4W Ml=2.5  EMSC   SOUTHERN CALIFORNIA          

O: 19AUG2019 11:45:20  35.6N  117.6W Ml=3.0  EMSC   SOUTHERN CALIFORNIA          

P: 16AUG2019 118039    35.8N  117.6W 2.5-4.4 BAAAA  So. California             

 

O: 20AUG2019 00:33:45  35.6N  120.8W Md=2.5  EMSC   CENTRAL CALIFORNIA           

P: 21AUG2019 118010    36.4N  121.0W 2.5-4.3 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.5 in Central California was felt with intensity II-III in the area(s) of Templeton, Paso Robles and Atascadero, California.

 

O: 19AUG2019 18:32:19  36.1N  117.9W Ml=2.5  EMSC   CENTRAL CALIFORNIA           

P: 18AUG2019 118005    36.1N  118.1W 2.5-4.5 AAAAA  California/Nevada area     

 

O: 19AUG2019 18:30:37  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA          

P: 15AUG2019 118013    38.8N  122.8W 2.5-4.3 BAAAA  Central California         

 

O: 19AUG2019 04:06:51  40.5N  124.7W Md=2.3  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 18AUG2019 118066    40.5N  125.8W 2.5-4.3 AAAAA  Off Coast of No. Calif     

 

 

ALASKA

 

No events of M>=3 were located in Alaska today.

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 19AUG2019 23:13:35  48.1N  121.9W Ml=2.0  EMSC   WASHINGTON                   

P: 21AUG2019 118078    48.4N  123.2W 2.0-3.8 AAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 20AUG2019 00:25:25  47.4N  113.1W ML=3.3  EMSC   WESTERN MONTANA              

P: 18AUG2019 118063    44.9N  113.4W 2.0-3.9 ACAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 19AUG2019 21:45:17  35.8N   96.6W mb=2.5  EMSC   OKLAHOMA                     

P: 15AUG2019 118042    35.0N   96.0W 2.0-3.8 BAAAA  Southeast U.S.             

 

O: 19AUG2019 22:44:40  36.3N   98.2W ML=2.0  EMSC   OKLAHOMA                      

P: 16AUG2019 118043    37.0N   98.0W 2.0-4.1 BAAAA  Southern Plains            

 

O: 20AUG2019 00:47:49  36.6N   97.2W ML=2.1  EMSC   OKLAHOMA                     

P: 18AUG2019 118043    37.0N   97.0W 2.0-4.1 AAAAA  Southern Plains             

 

HAWAII

 

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