MODERATE IRANIAN QUAKE MAY PRECEDE ADDITIONAL ACTIVITY

 

EARTHQUAKE SUMMARY FOR JULY 21, 2018

 

A moderate earthquake of M 5.4 was felt in Southern Iran today. It was associated with foreshocks and aftershocks of M 4.0 and 4.6. This activity may have been promoted by landfall of TS Son-Tinh in Vietnam. Faults across much of southern Asia often fail with landfall of storms in this area of southeastern Asia. It is likely that a general activation of the region could follow as noted in this summary:

 

"TS Son-tinh (TD 11W) continued today west of the northern Philippines with winds up to 45 kts.  It is expected to dissipate over Vietnam today. Some increased seismicity  on strike-slip faults further inland in Asia may be associated with landfall today." (July 21, 2018)

 

The last earthquake in Southern Iran within about 200 km of this epicenter with

M>=5.4 was an M 5.4 on January 22, 2016. The last of significantly larger magnitude occurred July 20, 2010. Forecast 118163 had expected today's event within about 100 km of the epicenter around July 19. This activity is at the fourth node (90 degrees) from the PNG quake of February and may have been promoted from that source.

 

O: 22JUL2018 05:59:20  27.5N   55.0E ML=4.0  EMSC   SOUTHERN IRAN                

O: 22JUL2018 05:04:48  27.6N   54.8E mb=4.6  EMSC   SOUTHERN IRAN                

O: 22JUL2018 05:07:02  27.7N   54.9E Mw=5.4  EMSC   SOUTHERN IRAN                

P: 19JUL2018 118163    28.0N   54.0E 3.5-5.4 AAAAA  So. Iran/Persian Gulf      

 

The strongest earthquake in the U.S. today was an M 5.4 associated with a strong eruption of Kilauea. NEIC reported it was felt with intensity IV in Volcano and Pahoa and II-III in Mountain View, Hilo, Papaikou and Pepeekeo, Hawaii..

Many lesser quakes were also felt lightly in the region of Volcano, Hawaii. Forecast 118135 had expected this activity around July 15. Overall with about 30 events of M>=3 today, the seismicity of Hawaii was well below what it has been for weeks.

 

O: 21JUL2018 19:43:28  19.4N  155.3W Mw=5.4  EMSC   ISLAND OF HAWAII, HAWAII     

P: 20JUL2018 118135    19.9N  156.1W 3.0-4.6 AAAAA  Hawaii                     

 

Moderate aftershocks including an M 5.4 also continued today in the Alaska Peninsula which has seen a series of moderate to large quakes in the past several days. These have not  been reported felt in the region but represent a significant enhancement in  regional seismicity as noted in previous issues of this summary:

 

 

"A moderately strong earthquake of M 5.6 hit western Alaska today. NEIC reported this earthquake was felt with intensity VI in King Cove and II-III in Chignik and possibly Soldotna, Alaska. This is the strongest earthquake within about 250 km of this epicenter since an M 5.6-5.7 on May 28, 2017 and prior to that an M 5.8 on October 27, 2016. The last event of M>=6 in the area was an M 6.1 on July 16, 2011. The only events of M>5.6 in Alaska in the past year was the M 7.9-8.0 on January 23, 2018 in the Gulf of Alaska.   Forecast 118251 had expected it within about 100 km of the epicenter around July 17. This epicenter is located at the 10th node (36 degrees) from the M 6.9 in Hawaii of May 4, the strongest earthquake in the world in the past two months. Alaska has been active in recent days and this event may help to alleviate some of the regional stress." (July 19, 2018)

 

O: 21JUL2018 08:15:17  54.4N  160.8W mb=3.7  EMSC   ALASKA PENINSULA             

O: 21JUL2018 07:58:39  54.5N  160.9W Mw=5.4  EMSC   ALASKA PENINSULA             

P: 17JUL2018 118251    54.8N  158.7W 3.5-4.9 BABAA  Alaska Peninsula           

 

An unusual earthquake of M 3.5 hit near the South Dakota-Nebraska border today near Valentine, Nebraska. NEIC reported it was felt with intensity IV in Valentine and Ainsworth, Nebraska and in Mission, South Dakota. Lesser shaking of intensity II-III was reported from Saint Francis and Winner, South Dakota and Cody, Nebraska. The last earthquake within about 100 km of this epicenter in South Dakota with M>=3.5 occurred on October 18, 2012 (M 3.6). Events of M 4.0 and 4.3 hit slightly further than 100 km from today's epicenter on May 25, 2003 and M 4.3 on November 3, 2002, the largest in the region since 1990. It was closely associated with the great Denali earthquake in Alaska of the same date (M 8.0). Unusual earthquakes in northwestern Missouri and in the Broken Bow area of central Nebraska along with a series of moderate to strong quakes in the Alaska Peninsula over the past week have  tended to reinforce this relation. This epicenter is at the seventh node (51 degrees) from Hawaii and the fifth node (72 degrees) from the Bolivia quake of April, 2018 and may have been promoted by energy from these sources.

 

 

O: 21JUL2018 07:11:30  43.0N  100.6W mb=3.5  EMSC   SOUTH DAKOTA                 

O: 21JUL2018 07:11:30  43.0N  100.6W mb=3.5  ANSS   NNW of Valentine Nebraska

 

A moderate earthquake of M 5.4 also occurred near the antipode of Nebraska and Missouri today. It was not felt in this remote area, but may have been related to the unusual seismicity in the central plains of the U.S. today. The last  earthquakes in the Southeast Indian Ridge within about 300 km of today's epicenter with M>=5.4 occurred as events of M 5.4-5.5 on August 6, 2017; May 11, 2014 and October 3, 2010. Forecast 118324 had expected this region would be active around July 18.

 

O: 21JUL2018 20:56:23  48.2S   99.6E mb=5.4  EMSC   SOUTHEAST INDIAN RIDGE       

P: 18JUL2018 118324    46.0S   96.0E 4.0-5.6 BCBAA  So. Indian Ocean           

 

A pair of moderate earthquakes also shook New Zealand today. The largest of these occurred near Nelson, South Island with M 4.8. The other was an M 4.6 under North Island.  GEONET reported this earthquake was felt with light intensity northeast of Okahune and in southwestern North Island and northern South Island. Light to moderate intensity was reported throughout much of southern and western North Island and northern South Island. More than 130 people reported feeling this earthquake with  90 reports of weak intensity; 38 of light intensity; 2 with moderate intensity; 0 with strong intensity; and 0 of severe intensity. The last earthquake within about 100 km of this epicenter with M>=4.6 was an M M 5.4 about 50 km east of this on July 10. Fouor earthquakes of M>=4.6 have hit this region during 2018. Forecast 118322 had expected today's activity within about 50 km was likely around July 18.

 

O: 21JUL2018 19:06:22  39.5S  176.1E mb=4.4  EMSC   NORTH ISLAND OF NEW ZEALAND  

O: 21JUL2018 19:06:23  39.4S  176.1E ML=4.6  GEONET Felt with light intensity

P: 18JUL2018 118322    40.0S  176.0E 3.0-4.6 BAAAA  North Island, N.Z.         

 

GEONET reported the earthquake of M 4.8-5.4 near Nelson was felt with moderate intensity in the northern South Island area. There were 8134 felt reports mostly from northern South Island, New Zealand. These included 3786 of weak shaking. Light intensity was felt by 3715 and moderate intensity by 595 person. Strong shaking was felt by 36 with one each reporting extreme and severe shaking. NEIC reported this earthquake of M 4.6 in Nelson, North Island, New Zealand was felt with intensity V in Porirua, IV in Wellington, and II-III in the area(s) of Nelson, New Zealand. An M 5.4 last hit the region on January 5, 2017. Forecast 118325 had expected today's event was likely within about 50 km of the epicenter around July 20.

 

O: 22JUL2018 03:14:43  41.1S  173.6E mb=4.8  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 22JUL2018 03:14:44  41.2S  173.5E MB=5.4  GEONET Felt with moderate intensity

P: 20JUL2018 118325    41.0S  174.0E 3.0-5.1 AAAAA  So. Island, N.Z.           

 

The geomagnetic field saw quiet  conditions today. The AP level was 11 High latitude geomagnetic field saw disturbed conditions  with AP at 27. This is the strongest geomagnetic storm a high latitudes in nearly a month – since it reached 33 on June 26. This and coming geomagnetic storms could increase seismicity at high latitudes and near the geomagnetic equator. A strong associated earthquake is most likely between July 23 and 27.

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: 22JUL2018 05:59:20  27.5N   55.0E ML=4.0  EMSC   SOUTHERN IRAN                

O: 22JUL2018 05:04:48  27.6N   54.8E mb=4.6  EMSC   SOUTHERN IRAN                

O: 22JUL2018 05:07:02  27.7N   54.9E Mw=5.4  EMSC   SOUTHERN IRAN                

P: 19JUL2018 118163    28.0N   54.0E 3.5-5.4 AAAAA  So. Iran/Persian Gulf      

 

O: 21JUL2018 19:37:45  34.3N   74.1E mb=4.2  EMSC   SOUTHWESTERN KASHMIR         

O: 21JUL2018 09:19:37  34.3N   74.1E mb=4.3  EMSC   SOUTHWESTERN KASHMIR         

P: 16JUL2018 118191    34.0N   74.0E 3.8-5.3 BAAAA  Pakistan                   

 

NEIC reported this earthquake of M 4.5 in India was felt with intensity II-III in the area(s) of Baramula, Jammu and Kashmir, India.

 

INDONESIA AND PHILIPPINES

 

O: 21JUL2018 07:58:19   0.9S  100.7E mb=5.2  EMSC   SOUTHERN SUMATRA, INDONESIA  

O: 21JUL2018 07:58:17  01.0N  100.7E MS=5.5  BMG  Felt with intensity V in Gunung Talang

P: 19JUL2018 118108     2.0N  100.0E 4.0-5.4 ACAAA  So. Sumatera               

 

BMG reported this earthquake at M 5.5 was felt with intensity V in Gunung Talang; III-VI in Kota Padang; II-III in Padang Panjang and Pariaman; III in Bukittinggi and II in Painan, Sawahlunto and Sijunjung, Sumatra, Indonesia.

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

 

O: 22JUL2018 05:40:22  12.6N  142.3E mb=4.4  EMSC   MARIANA ISLANDS REGION       

P: 15JUL2018 118149    13.0N  144.0E 4.0-5.6 CABAA  So. Marianas/Guam          

 

O: 22JUL2018 06:22:52  19.6N  121.7E mb=4.5  EMSC   BABUYAN ISL REGION, PHILIPPINE

P: 19JUL2018 118164    20.0N  121.0E 4.0-5.6 BAAAA  Taiwan                     

 

CENTRAL AND SOUTH AMERICA

 

O: 21JUL2018 14:39     22.3S   68.7W mb=5.1  GUC    Antofagasta at Maria Elena, Qu

P: 15JUL2018 118300    21.0S   69.0W 4.0-5.5 CBAAA  Coast No. Chile            

 

CSN reported this earthquake was felt with intensity IV in  Antofagasta at Maria Elena, Quillagua; III in Calama, San Pedro de Atacama, Cocaire, Talabre and Toconao, Chile.

 

O: 21JUL2018 12:49     29.9S   71.6W mb=4.4  GUC    Coquimbo at Coquimbo, La Higue

P: 21JUL2018 118315    30.0S   70.0W 4.0-5.7 AAAAA  Coast Central Chile        

 

CSN reported this earthquake was felt with intensity III in  Coquimbo at Coquimbo, La Higuera and La Serena, Chile.

 

O: 21JUL2018 08:59:30  11.0N   86.7W ML=4.0  EMSC   NEAR COAST OF NICARAGUA      

P: 16JUL2018 118144    11.0N   87.0W 3.5-5.1 BAAAA  Nicaragua                  

 

O: 22JUL2018 04:16:39  17.7N   68.6W MD=3.2  EMSC   DOMINICAN REPUBLIC REGION    

O: 22JUL2018 01:34:17  17.8N   68.1W MD=3.0  EMSC   DOMINICAN REPUBLIC REGION    

P: 18JUL2018 118148    18.0N   69.0W 3.4-5.2 BAAAA  Puerto Rico                

 

O: 21JUL2018 15:21:01  19.2N   68.8W MD=3.7  EMSC   DOMINICAN REPUBLIC REGION    

P: 19JUL2018 118148    19.0N   67.0W 3.4-5.1 AABAA  Puerto Rico                

 

O: 21JUL2018 17:45:19  21.2S   68.9W mb=4.5  EMSC   TARAPACA, CHILE              

O: 21JUL2018 14:39:03  22.3S   68.5W Mw=5.2  EMSC   ANTOFAGASTA, CHILE           

P: 15JUL2018 118300    21.0S   69.0W 4.0-5.5 CAAAA  Coast No. Chile            

 

O: 21JUL2018 10:21:06  23.4N   99.8W ML=3.5  EMSC   TAMAULIPAS, MEXICO           

 

O: 21JUL2018 12:49:23  29.9S   71.5W mb=4.4  EMSC   OFFSHORE COQUIMBO, CHILE     

P: 21JUL2018 118315    30.0S   70.0W 4.0-5.7 AAAAA  Coast Central Chile        

 

 

AFRICA AND EUROPE

 

O: 22JUL2018 06:41:25  32.8N   35.6E mb=2.8  EMSC   DEAD SEA REGION              

P: 17JUL2018 118210    35.0N   34.0E 3.5-5.1 BCBAA  Turkey                     

 

NEIC reported this earthquake of M 2.8 in Israel was felt with intensity II-III in the area(s) of Tiberias, Israel.

 

O: 21JUL2018 22:15:25  37.5N   24.8W ML=4.1  EMSC   AZORES ISLANDS REGION        

 

O: 21JUL2018 06:15:14  39.0N   44.2E ML=4.4  EMSC   TURKEY-IRAN BORDER REGION    

P: 17JUL2018 118212    38.0N   43.0E 3.5-5.4 BAAAA  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: 21JUL2018 16:35:28   0.8S   91.1W ML=4.3  EMSC   GALAPAGOS ISLANDS, ECUADOR   

 

O: 21JUL2018 20:56:23  48.2S   99.6E mb=5.4  EMSC   SOUTHEAST INDIAN RIDGE       

P: 18JUL2018 118324    46.0S   96.0E 4.0-5.6 BCBAA  So. Indian Ocean           

 

O: 21JUL2018 22:51:01  60.5S   26.3W mb=5.1  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 16JUL2018 118330    56.0S   27.0W 4.0-5.6 BCAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 21JUL2018 19:06:22  39.5S  176.1E mb=4.4  EMSC   NORTH ISLAND OF NEW ZEALAND  

O: 21JUL2018 19:06:23  39.4S  176.1E ML=4.6  GEONET Felt with light intensity

P: 18JUL2018 118322    40.0S  176.0E 3.0-4.6 BAAAA  North Island, N.Z.         

 

GEONET reported this earthquake was felt with light intensity northeast of Okahune and in southwestern North Island and northern South Island. Light to moderate intensity was reported throughout much of southern and western North Island and northern South Island. More than 130 people reported feeling this earthquake with  90 reports of weak intensity; 38 of light intensity; 2 with moderate intensity; 0 with strong intensity; and 0 of severe intensity.

 

O: 22JUL2018 03:14:43  41.1S  173.6E mb=4.8  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 22JUL2018 03:14:44  41.2S  173.5E MB=5.4  GEONET Felt with moderate intensity

P: 20JUL2018 118325    41.0S  174.0E 3.0-5.1 AAAAA  So. Island, N.Z.           

 

GEONET reported this earthquake was felt with moderate intensity in the northern South Island area. There were 8134 felt reports mostly from northern South Island, New Zealand. These included 3786 of weak shaking. Light intensity was felt by 3715 and moderate intensity by 595 person. Strong shaking was felt by 36 with one each reporting extreme and severe shaking.

 

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: 21JUL2018 12:07:56  33.5N  116.8W ML=3.0  EMSC   SOUTHERN CALIFORNIA          

P: 21JUL2018 118197    33.4N  116.7W 2.5-4.4 AAAAA  So. California             

 

NEIC reported this earthquake of M 3.0 in Southern California was felt with intensity IV in Aguanga, California and II-III in the area(s) of Anza, Warner Springs, Idyllwild and Palm Desert, California.

 

O: 22JUL2018 02:56:46  36.4N  117.0W ML=2.0  EMSC   CENTRAL CALIFORNIA            

P: 19JUL2018 118168    36.9N  117.4W 2.5-4.8 BAAAA  California/Nevada area     

 

O: 21JUL2018 14:34:06  36.6N  121.2W MD=2.3  EMSC   CENTRAL CALIFORNIA           

O: 22JUL2018 05:30:38  36.8N  120.7W MD=2.3  EMSC   CENTRAL CALIFORNIA            

O: 22JUL2018 05:30:38  36.8N  120.7W MD=2.3  EMSC   CENTRAL CALIFORNIA           

P: 20JUL2018 118173    37.2N  122.1W 2.5-4.6 AABAA  Central California         

 

O: 21JUL2018 16:38:56  37.5N  118.8W MD=2.4  EMSC   CENTRAL CALIFORNIA           

P: 19JUL2018 118169    37.4N  118.6W 2.5-4.6 AAAAA  California/Nevada area     

 

O: 22JUL2018 06:12:01  38.5N  122.8W MD=2.6  EMSC   NORTHERN CALIFORNIA          

O: 21JUL2018 11:33:46  38.8N  122.4W MD=2.3  EMSC   NORTHERN CALIFORNIA          

P: 19JUL2018 118174    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.6 in Northern California was felt with intensity II-III in the area(s) of Santa Rosa, Fulton and Windsor, California.

 

O: 21JUL2018 09:16:39  39.5N  120.3W ML=2.5  EMSC   NORTHERN CALIFORNIA          

P: 21JUL2018 118172    39.4N  120.5W 2.5-4.4 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.5 in Northern California was felt with intensity II-III in the area(s) of Blairsden-Graeqgle, California.

 

O: 21JUL2018 13:28:36  40.3N  123.5W MD=2.1  EMSC   NORTHERN CALIFORNIA          

P: 21JUL2018 118233    40.4N  122.2W 2.5-4.4 AABAA  Northern California        

 

 

ALASKA

 

O: 21JUL2018 15:40:03  50.6N  169.9W ML=3.0  EMSC   SOUTH OF ALEUTIAN ISLANDS    

P: 19JUL2018 118254    52.1N  171.3W 3.5-5.1 ABAAA  Andreanoff Isls, Aleutians 

 

O: 21JUL2018 08:15:17  54.4N  160.8W mb=3.7  EMSC   ALASKA PENINSULA             

O: 21JUL2018 07:58:39  54.5N  160.9W Mw=5.4  EMSC   ALASKA PENINSULA             

P: 17JUL2018 118251    54.8N  158.7W 3.5-4.9 BABAA  Alaska Peninsula           

 

O: 22JUL2018 06:53:41  56.2N  148.8W ML=3.0  EMSC   GULF OF ALASKA               

O: 21JUL2018 19:48:31  56.4N  149.3W mb=4.4  EMSC   GULF OF ALASKA                

P: 17JUL2018 118252    55.0N  148.7W 3.5-4.9 ABAAA  Gulf of Alaska             

 

O: 21JUL2018 12:10:01  60.0N  141.5W ML=3.0  EMSC   SOUTHEASTERN ALASKA          

P: 21JUL2018 118267    59.0N  139.0W 3.0-4.4 AABAA  Southeast 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

 

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

 

EASTERN U.S./CANADA

 

O: 21JUL2018 06:56:19  35.9N   97.3W mb=2.2  EMSC   OKLAHOMA                     

P: 20JUL2018 118208    36.0N   96.0W 2.0-4.3 AAAAA  Southern Plains            

 

O: 21JUL2018 07:11:30  43.0N  100.6W mb=3.5  EMSC   SOUTH DAKOTA                 

O: 21JUL2018 07:11:30  43.0N  100.6W mb=3.5  ANSS   NNW of Valentine Nebraska

 

HAWAII

 

O: 21JUL2018 08:33:23  19.3N  155.5W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 06:42:29  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 08:15:25  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 08:25:55  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 08:49:56  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 08:51:07  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 09:48:14  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 13:37:59  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 13:41:31  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 13:43:20  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 16:09:28  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 19:31:38  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 22JUL2018 06:26:07  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 11:07:08  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 11:55:54  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 13:36:16  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 15:30:32  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 17:05:48  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 09:43:48  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 10:00:46  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 11:08:27  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 15:38:56  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 16:21:25  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 19:35:52  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 06:59:42  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 08:47:28  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 12:49:13  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 18:02:17  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 06:49:17  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 09:45:20  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 09:55:10  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 14:54:54  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 15:34:21  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 17:39:17  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 17:54:32  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 09:59:18  19.4N  155.3W ML=3.5  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 19:39:38  19.4N  155.3W ML=3.5  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 09:16:24  19.4N  155.3W ML=3.6  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 11:52:34  19.4N  155.3W ML=3.6  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 17:58:35  19.4N  155.3W ML=3.6  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 19:28:01  19.4N  155.3W ML=3.6  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 06:56:33  19.4N  155.3W ML=3.7  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 06:51:09  19.4N  155.3W ML=3.8  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 19:43:28  19.4N  155.3W Mw=5.4  EMSC   ISLAND OF HAWAII, HAWAII     

P: 20JUL2018 118135    19.9N  156.1W 3.0-4.6 AAAAA  Hawaii                     

 

MODERATELY STRONG QUAKES UNDER MARIANA IS; ARGENTINA CONTINUE GLOBAL ACTIVATION

 

EARTHQUAKE SUMMARY FOR JULY 20, 2018

 

Moderately strong earthquakes shook the northern Mariana Islands and a deep hypocenter under Argentina with M 5.6-5.7 each today. These continued the sudden global seismic activation which began two days ago. The earthquake in the northern Mariana Islands of M 5.7 was reported by NEIC to have been felt with intensity IV in Garapan, Saipan and in Tinian, Guam, Mariana Islands. The last earthquake within about 200 km of this epicenter with M>=5.7 occurred on September 14, 2017. Both are likely aftershocks of an M 7.7 which hit the area on July 29, 2016. Forecast 118145 had expected today's event was likely around July 16 within about 50 km of the epicenter. It is likely this was promoted by strong typhoon which passed directly over this epicenter earlier this month as noted in previous issues of this summary:

 

"Super-Typhoon Maria (TS 10W) continued today over Guam with winds up to 150 kts. It is expected to track to the northwest passing over Guam as a typhoon on  July 5-6. This storm could trigger a moderate to large quake in the region of Guam and the southern Mariana Islands which are currently seeing seismicity at moderately high levels." (July 7, 2018)

 

This quake in the Northern Marianas occurred at the sixth node (60 degrees) from the great Gulf of Alaska quake and was likely promoted from that source.

 

O: 20JUL2018 23:56:07  18.5N  145.9E Mw=5.7  EMSC   PAGAN REG., N. MARIANA ISLANDS

P: 16JUL2018 118145    18.0N  146.0E 4.0-5.4 BAAAA  No. Marianas               

 

The earthquake in Argentina of M 5.6 was not widely felt on the surface due to its deep focus. It is located near the antipode of TD 13 and TS Ampil current strong storms in the Philippines and Ryukyu Islands and may have been promoted by microseisms from that activity. This is the strongest earthquake within about

300 km of this epicenter since an M 5.6 on March 25, 2018 about 150 km to the north and prior to that an M 5.8 on November 13, 2015 about 250 km to the southwest of today's epicenter.  Forecast 118299 had expected today's event was likely in mid-July. This epicenter is located at 106 degrees from the great Gulf of Alaska quake and at 101 degrees from Hawaii and may have been promoted from those sources. 

 

O: 20JUL2018 10:24:56  28.1S   63.2W Mw=5.6  EMSC   SANTIAGO DEL ESTERO, ARGENTINA

P: 15JUL2018 118299    28.0S   67.0W 4.0-5.8 BACAA  Argentina                  

 

An earthquake of M 2.6 was felt widely in the region of northwestern Missouri and Kansas today. NEIC reported intensity II-III in Missouri at Saint Joseph, Amazonia, Agency, Faucett, De Kalb, Rayville, Trenton, Kirsville, Salem, and in Kansas at Wathena, Troy, Overland Park. It was also reported lightly felt in Saline, Michigan and Park River, North Dakota. This may be related to the M 6.0 in the Alaska yesterday. Earthquakes in Nebraska and South Dakota often are associated with strong earthquakes in Alaska - before or after those events. This relation has been frequently noted in this summary.  This is a very unusual earthquake and may point to additional seismicity in the area of Missouri and the Dakotas. A series of earthquakes in central Nebraska over the past two weeks near Broken Bow was probably precursory to the strong earthquakes in Alaska of the past two days as previously suggested in this summary. The last earthquake within about 100 km of today's Missouri epicenter was an M 3.1 on March 23, 2007 and prior to that an M 3.0 on May 13, 1999. Forecast 118209 had expected a light quake in the area in mid-July. This area should be watched as it may also indicate a spreading of the Oklahoma/Kansas/Nebraska activity into an extended area of the central Plain States of the U.S.

 

O: 20JUL2018 22:46:49  39.8N   94.9W mb=2.6  EMSC   MISSOURI                     

P: 15JUL2018 118209    38.0N   99.0W 2.0-4.3 BBCAA  Southern Plains            

 

The strongest earthquake in the U.S. or Canada today occurred off the coast of Oregon with M 3.9. NEIC reported this earthquake of M 3.9 off the coast of Oregon  may have been felt with intensity II-III in the area(s) of Florence, Oregon. This earthquake is the strongest within about 200 km of this epicenter off the coast of Oregon with  M>=3.9 was an M 4.6 two months ago on May 24, 2018. Forecast 118236 had expected this event was likely in mid-July within this region.

 

O: 20JUL2018 11:04:04  43.9N  128.1W mb=3.9  EMSC   OFF COAST OF OREGON          

P: 16JUL2018 118236    44.3N  129.4W 3.0-4.6 BAAAA  Off Coast of Oregon        

P: 20JUL2018 118236    43.1N  126.5W 3.0-4.7 AABAA  Off Coast of Oregon        

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: 21JUL2018 05:18:18  36.3N   69.7E mb=4.8  EMSC   HINDU KUSH REGION, AFGHANISTAN

O: 20JUL2018 22:45:52  36.4N   71.1E mb=4.0  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 20JUL2018 118178    36.0N   71.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

NEIC reported this earthquake of M 4.8 in Afghanistan was felt with intensity II-III in the area(s) of Mahmoud Raqui, Kapisa, Afghanistan.

 

O: 20JUL2018 06:36:35  15.1N   96.7E ML=4.0  EMSC   NEAR SOUTH COAST OF MYANMAR  

P: 17JUL2018 118126    14.0N   94.0E 4.0-5.6 BBBAA  Andaman Islands            

 

O: 21JUL2018 00:40:34  35.0N   80.9E mb=4.6  EMSC   WESTERN XIZANG               

P: 20JUL2018 118216    30.0N   80.0E 3.8-5.3 ACAAA  Xizang                     

 

O: 21JUL2018 04:19:17  51.9N  159.2E mb=4.9  EMSC   OFF EAST COAST OF KAMCHATKA  

P: 18JUL2018 118258    51.0N  157.0E 4.0-5.9 BABAA  Kamchatka                  

 

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

 

INDONESIA AND PHILIPPINES

 

O: 20JUL2018 19:58:10   1.6S   99.9E Mw=5.2  EMSC   KEP. MENTAWAI REGION, INDONESI

O: 20JUL2018 19:58:07  01.8S  099.2E MS=5.4  BMG  Felt with intensity II-III

P: 19JUL2018 118108     2.0N  100.0E 4.0-5.4 ACAAA  So. Sumatera               

 

BMG reported this earthquake was felt with intensity II-III in Padang, Pariaman and Kep. Mentawai and I-II i Padang Panjang, Kukit Tinggi and Painan, Sumatra, Indonesia.

NEIC reported this earthquake of M 5.2 in Mentawai, Indonesia was felt with intensity V in Padang Pariaman, Sumatra and II-III in the area(s) of Padang, Sumatra, Indonesia.

 

O: 20JUL2018 12:03:19   2.5N  128.3E mb=4.6  EMSC   HALMAHERA, INDONESIA         

O: 20JUL2018 12:03:17  02.6N  128.3E MS=4.5  BMG  Felt with intensity II

P: 21JUL2018 118105     4.0N  127.0E 4.0-5.5 ABAAA  Halmahera                  

 

BMG reported this earthquake was felt with intensity II in Morotai Selatan, Maluku, Indonesia.

 

O: 20JUL2018 23:56:07  18.5N  145.9E Mw=5.7  EMSC   PAGAN REG., N. MARIANA ISLANDS

P: 16JUL2018 118145    18.0N  146.0E 4.0-5.4 BAAAA  No. Marianas               

 

O: 20JUL2018 18:32:53   3.5S  146.3E mb=4.8  EMSC   BISMARCK SEA                 

P: 16JUL2018 118120     5.0S  144.0E 4.0-5.5 BBBAA  Papua New Guinea           

 

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

 

CENTRAL AND SOUTH AMERICA

 

O: 20JUL2018 11:29     27.6S   70.3W mb=4.0  GUC    Atacama at Copiapo and Tierra

P: 18JUL2018 118299    29.0S   70.0W 4.0-5.7 ABAAA  Coast Central Chile        

 

CSN reported this earthquake was felt with intensity  V in  Atacama at Copiapo and Tierra Amarilla III in Caldera and II in Diego de Almagra, Chile.

 

O: 20JUL2018 09:26:20  13.7N   90.5W mb=4.3  EMSC   OFFSHORE GUATEMALA           

P: 15JUL2018 118133    14.0N   90.0W 3.5-5.2 BAAAA  Guatemala                  

P: 18JUL2018 118133    15.0N   91.0W 3.5-5.3 ABAAA  Guatemala                  

 

NEIC reported this earthquake of M 4.3 in Guatemala was felt with intensity II-III in the area(s) of San Miguel Duenas and Antigua Guatemala, Sacatepequez; Mixco and San Antonio Palopo, Solola, Guatemala.

 

O: 20JUL2018 15:34:42  15.3N   94.8W ML=4.1  EMSC   OFF COAST OF OAXACA, MEXICO  

O: 20JUL2018 23:33:45  16.1N   94.9W mb=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 18JUL2018 118129    17.0N   95.0W 3.5-5.4 AAAAA  Chiapas, Mexico            

 

O: 20JUL2018 08:05:55  16.3N   98.1W ML=4.0  EMSC   OAXACA, MEXICO               

O: 21JUL2018 01:29:40  16.3N   99.1W mb=4.7  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 18JUL2018 118147    17.0N   99.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

O: 20JUL2018 17:42:04  17.8N   95.5W mb=4.6  EMSC   VERACRUZ, MEXICO             

P: 18JUL2018 118129    17.0N   95.0W 3.5-5.4 AAAAA  Chiapas, Mexico            

 

NEIC reported this earthquake of M 4.6 in Veracruz, Mexico was felt with intensity II-III in the area(s) of Nanchital and Martinez, Veracruz, Mexico.

 

O: 20JUL2018 22:02:31  18.2N   67.9W MD=3.2  EMSC   MONA PASSAGE, PUERTO RICO    

P: 21JUL2018 118148    18.0N   66.0W 3.4-5.1 AABAA  Puerto Rico                

 

O: 21JUL2018 00:50:53  19.6N   63.3W mb=4.4  EMSC   NORTH OF ANGUILLA, LEEWARD ISL

P: 20JUL2018 118151    20.0N   63.0W 3.0-4.6 AAAAA  Bahamas/No. Caribbean      

 

O: 20JUL2018 18:03:38  23.8S   67.3W ML=4.1  EMSC   ANTOFAGASTA, CHILE           

P: 17JUL2018 118298    24.0S   66.0W 4.0-5.5 BAAAA  Argentina                  

 

O: 20JUL2018 11:29:43  27.6S   70.3W ML=4.0  EMSC   ATACAMA, CHILE               

P: 18JUL2018 118299    29.0S   70.0W 4.0-5.7 ABAAA  Coast Central Chile        

 

O: 20JUL2018 10:24:56  28.1S   63.2W Mw=5.6  EMSC   SANTIAGO DEL ESTERO, ARGENTINA

P: 15JUL2018 118299    28.0S   67.0W 4.0-5.8 BACAA  Argentina                  

 

AFRICA AND EUROPE

 

O: 21JUL2018 00:18:16  40.4N   52.2E ML=3.9  EMSC   CASPIAN SEA, OFFSHR TURKMENIST

P: 20JUL2018 118223    40.0N   52.0E 4.0-5.5 AAAAA  Kazakhstan                 

 

O: 20JUL2018 06:28:34  64.6N   17.3W ML=3.3  EMSC   ICELAND                      

P: 17JUL2018 118275    66.0N   17.0W 3.0-4.4 BBAAA  Iceland area               

 

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

 

SOUTHWEST PACIFIC

 

O: 20JUL2018 12:32:01  10.3S  161.2E mb=5.0  EMSC   SOLOMON ISLANDS              

P: 13JUL2018 118291    10.0S  162.0E 4.0-5.4 CAAAA  No. of Santa Cruz Islands  

 

OCEAN RIDGES

 

O: 20JUL2018 16:19:22   0.8S   91.1W ML=3.4  EMSC   GALAPAGOS ISLANDS, ECUADOR   

O: 20JUL2018 19:20:46   0.8S   91.2W ML=3.0  EMSC   GALAPAGOS ISLANDS, ECUADOR   

O: 20JUL2018 15:45:48   0.9S   91.1W ML=3.7  EMSC   GALAPAGOS ISLANDS, ECUADOR   

P: 10JUL2018 117912     2.0N   85.0W 4.0-5.6 CCCAA  So. of Panama              

 

O: 20JUL2018 19:46:58   9.1S  109.7W mb=4.7  EMSC   CENTRAL EAST PACIFIC RISE    

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 21JUL2018 02:07:14  33.9S  179.2W mb=4.5  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 21JUL2018 118320    33.0S  178.0W 4.0-5.4 AAAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

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

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 21JUL2018 03:25:34  35.2N  118.9W ML=2.8  EMSC   CENTRAL CALIFORNIA           

P: 19JUL2018 118202    35.3N  118.6W 2.5-5.1 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.8 in Central California was felt with intensity II-III in the area(s) of Bakersfield, California.

 

O: 20JUL2018 12:06:53  36.0N  120.1W MD=2.1  EMSC   CENTRAL CALIFORNIA           

O: 20JUL2018 14:59:29  36.1N  120.7W MD=2.1  EMSC   CENTRAL CALIFORNIA           

P: 20JUL2018 118173    37.2N  122.1W 2.5-4.6 ABAAA  Central California         

 

O: 20JUL2018 23:04:15  38.8N  122.4W MD=2.1  EMSC   NORTHERN CALIFORNIA          

P: 19JUL2018 118174    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 20JUL2018 22:50:50  39.4N  118.1W ML=2.2  EMSC   NEVADA                       

O: 21JUL2018 04:28:25  39.9N  117.9W ml=2.0  EMSC   NEVADA                       

P: 19JUL2018 118218    40.2N  119.6W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 20JUL2018 12:29:22  40.4N  125.3W ML=3.0  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 16JUL2018 118234    40.3N  124.7W 2.5-4.4 BAAAA  Off Coast of No. Calif     

 

ALASKA

 

O: 20JUL2018 18:12:50  53.6N  169.5W ML=3.4  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P: 19JUL2018 118254    52.1N  171.3W 3.5-5.1 ABAAA  Andreanoff Isls, Aleutians 

 

O: 20JUL2018 20:46:28  56.4N  148.6W ML=3.6  EMSC   GULF OF ALASKA               

O: 20JUL2018 10:42:45  56.6N  148.7W Ml=3.0  EMSC   GULF OF ALASKA               

P: 17JUL2018 118252    55.0N  148.7W 3.5-4.9 BAAAA  Gulf of Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 20JUL2018 11:04:04  43.9N  128.1W mb=3.9  EMSC   OFF COAST OF OREGON          

P: 16JUL2018 118236    44.3N  129.4W 3.0-4.6 BAAAA  Off Coast of Oregon        

P: 20JUL2018 118236    43.1N  126.5W 3.0-4.7 AABAA  Off Coast of Oregon        

 

O: 20JUL2018 21:35:19  48.1N  122.0W MD=2.4  EMSC   WASHINGTON                   

P: 19JUL2018 118247    47.5N  121.8W 2.0-4.1 AAAAA  Washington state, U.S.     

 

ROCKY MOUNTAINS REGION

 

O: 20JUL2018 11:38:46  30.9N  103.5W mb=2.4  EMSC   WESTERN TEXAS                

P: 19JUL2018 118193    32.6N  103.6W 2.0-4.0 AABAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 20JUL2018 19:46:55  35.9N   97.3W mb=2.5  EMSC   OKLAHOMA                     

O: 20JUL2018 21:01:54  35.9N   97.3W mb=2.6  EMSC   OKLAHOMA                     

P: 19JUL2018 118208    36.0N   97.0W 2.0-4.0 AAAAA  Southern Plains             

 

NEIC reported this earthquake of M 2.6 in Oklahoma was felt with intensity V in Guthrie, Oklahoma and II-III in the area(s) of Coyle, Oklahoma. An earlier M 2.5 was felt with intensity IV in Guthrie and II in Coyle, Oklahoma. Strong tornadic activity was present at the time of these quakes.

 

O: 20JUL2018 22:46:49  39.8N   94.9W mb=2.6  EMSC   MISSOURI                     

P: 15JUL2018 118209    38.0N   99.0W 2.0-4.3 BBCAA  Southern Plains            

 

O: 19JUL2018 21:46:43  71.9N   70.6W ML=3.0  NRCA  175 km NW from Clyde River    

P: 20JUL2018 118280    71.0N   75.0W 2.5-3.9 AAAAA  Baffin/Davis Strait Canada 

 

HAWAII

 

O: 20JUL2018 20:43:12  19.4N  155.3W MD=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 10:45:56  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 14:43:07  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 15:08:22  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 18:50:58  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 21:25:47  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 22:02:39  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 23:25:38  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 02:32:40  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 05:54:09  19.4N  155.3W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 22:19:45  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 00:12:49  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 02:31:04  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 05:56:05  19.4N  155.3W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 19:46:25  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 01:18:05  19.4N  155.3W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 17:31:48  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 18:51:58  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 19:02:31  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 22:17:52  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 00:34:33  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 00:36:06  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 02:21:45  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 02:28:43  19.4N  155.3W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 23:16:24  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 02:23:51  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 03:17:02  19.4N  155.3W ML=3.4  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 20:29:34  19.4N  155.3W ML=3.5  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 00:26:28  19.4N  155.3W ML=3.5  EMSC   ISLAND OF HAWAII, HAWAII

O: 20JUL2018 20:26:18  19.4N  155.3W ML=3.7  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 03:12:24  19.4N  155.3W ML=3.7  EMSC   ISLAND OF HAWAII, HAWAII

O: 21JUL2018 00:28:01  19.4N  155.3W ML=3.8  EMSC   ISLAND OF HAWAII, HAWAII     

P: 20JUL2018 118135    19.9N  156.1W 3.0-4.6 AAAAA  Hawaii