MODERATE EARTHQUAKE IN MICRONESIA PROBABLY TRIGGERED BY TROPICAL CYCLONE

 

EARTHQUAKE SUMMARY FOR JULY 27, 2014

 

An earthquake of M 5.4 in the Caroline Islands of Micronesia near Ngulu  was the strongest earthquake in the world today. This is the strongest earthquake within 200 km of this epicenter in more than 10 years - since an  M 5.8 on April 10, 2004. The only other similar events in this area in the past 25 years occurred on August 14, 2002 with M 6.2. This is a remote area and there were no immediate reports of damage or casualties with this event.  Forecast 81921 had expected activity to the north of this around July 30.

 

This area has seen several tropical storms and typhoons pass nearby in the past two weeks. Stresses from these storms may have promoted this earthquake. A new tropical storm is forming to the east of this and my overpass this epicenter in about a week.

 

"A new tropical storm (Tropical Storm Matmo) may be forming east of the Philippines in the Yap area. This storm is currently located at 10N 137E with winds up to 20 kts. and is moving to the east possibly hitting the Philippines in the next week. A further seismic watch may be called as this storm intensifies." (July 17, 2014)

 

This storm (Matmo) followed much the same path as Typhoon Rammasun (Glenda) - the strongest typhoon to hit southeast Asia in the past 41 years. This may also have contributed stress leading to today's earthquake.

 

O: 28JUL2014 03:36:47   7.6N  136.7E mb=5.4  ANSS   SW of Ngulu Micronesia       

P: 30JUL2014 81921     11.0N  140.0E 4.0-5.7 ACCAA  So. Marianas/Guam          

 

An earthquake of M 4.9 shook the Island of Aruba today. The quake was felt lightly with moderate shaking around Oranjestad and as far as Punto Fijo and in Venezuela. There were no reports of damage or injuries due to the earthquake.

 

NEIC reported this earthquake of M 4.9 in Aruba was felt with intensity IV in Oranjestad, Aruba and II-III in the area(s) of Punto Fijo, Falcon, Venezuela. Forecast 81917 had expected this event to the north of this epicenter around July 25.

 

This is the strongest earthquake within 200 km of this epicenter since an M 5.1 on February 21, 2014, the only other event of this magnitude in Aruba in the

past 25 years. This summary noted on February 21 the felt activity from this earlier event as follows:

 

"An M 5.1 west of Arasji, Aruba and north of Puinto Fijo, Venezuela rocked the cities of Arasji, Oranjestad, Babijn and Agnochi, Aruba today. This is the strongest earthquake to hit within 100 km of Aruba since a similar event of M 5.1 on January 1, 2006, the only other such event in the area in the past 25 years." (February 22, 2014)

 

O: 27JUL2014 20:34:32  12.9N   70.0W mb=4.9  ANSS   N of Arasji Aruba            

P: 25JUL2014 81917     10.0N   70.0W 3.4-5.0 ACAAA  No. Venezuela              

 

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: 27JUL2014 09:23:31  24.4N  121.9E ML=4.2  TAI    Hualien, Taiwan              

P: 26JUL2014 81939     24.0N  122.0E 4.0-5.6 AAAAA  Taiwan                     

 

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

 

O: 28JUL2014 00:00:46  26.9N   54.2E mb=4.5  ANSS   NNE of Kish Iran             

P: 31JUL2014 81938     28.0N   52.0E 3.5-5.1 BBBAA  So. Iran/Persian Gulf      

 

O: 27JUL2014 20:11:54  27.6N   66.1E mb=4.4  ANSS   WSW of Khuzdar Pakistan      

P: 30JUL2014 81936     29.0N   68.0E 3.5-5.1 BBBAA  Pakistan                   

 

O: 27JUL2014 18:17:48  31.5N   49.4E ML=4.3  EMS WESTERN IRAN                    

P: 24JUL2014 81990     30.0N   51.0E 3.8-5.6 BBBAA  So. Iran                   

 

O: 28JUL2014 05:14:58  33.6N   45.6E ML=4.3  EMS IRAN-IRAQ BORDER REGION         

P: 25JUL2014 81991     33.0N   46.0E 3.8-5.6 BAAAA  So. Iran                   

 

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

 

INDONESIA AND PHILIPPINES

 

O: 27JUL2014 10:15:31   2.9S  136.5E mb=4.7  ANSS   N of Enarotali Indonesia     

P: 29JUL2014 81899      4.0S  135.0E 4.0-5.6 ABBAA  West Irian, PNG            

 

O: 27JUL2014 23:35:06  10.1S  119.9E mb=4.5  ANSS   SW of Tarimbang Indonesia    

P: 29JUL2014 82102     11.0S  118.0E 4.0-5.4 AABAA  So. of Indonesia           

 

O: 27JUL2014 17:04:47   5.5N  126.1E ML=4.4  GSR  Mindanao, Philippines          

P:  3AUG2014 81876      6.0N  126.0E 4.0-5.4 CAAAA  Mindanao, Philippines      

 

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

 

CENTRAL AND SOUTH AMERICA

 

O: 28JUL2014 03:15     10.6S   74.7W mb=4.4  IGP    SE of Puerto Bermudez, Peru  

P:  2AUG2014 82093     10.0S   75.0W 3.5-5.0 BAAAA  Brazil                     

 

O: 27JUL2014 19:37     28.3S   70.7W mb=4.0  GUC    Tierra Amarilla, Copiapo; II V

P: 26JUL2014 82106     29.0S   72.0W 4.0-5.4 AAAAA  Coast Central Chile        

 

CSN reported this earthquake was felt with intensity  III in Tierra Amarilla, Copiapo; II Vallenar, Freirina, Chile. Felt in Atacama, Chile.                             

 

O: 27JUL2014 13:29:06  16.2N   98.7W mb=4.7  ANSS   S of Tecoanapa Mexico        

O: 27JUL2014 13:29:00  15.8N   98.8W ML=4.8  UNAM    SUROESTE de PINOTEPA NACIONAL, OAX 

O: 27JUL2014 02:49:54  16.0N   99.0W ML=4.0  UNAM   SURESTE de SAN MARCOS, GRO 

P: 21JUL2014 81681     16.0N   99.0W 3.5-5.2 CAAAA  Oaxaca, Mexico             

 

O: 27JUL2014 06:56:12  17.9N   66.9W Md=3.1  ANSS   Guanica Puerto Rico          

P: 23JUL2014 81920     18.0N   66.0W 3.4-4.9 BAAAA  Puerto Rico                

 

O: 27JUL2014 11:20:54  19.1N   64.3W Md=3.2  ANSS   Town British Virgin Islands  

P:  3AUG2014 81910     19.0N   64.0W 3.0-5.1 CAAAA  Leeward Islands            

 

O: 27JUL2014 10:26:59  19.2N   64.4W Md=3.2  ANSS   Town British Virgin Islands  

P: 26JUL2014 81924     20.0N   63.0W 3.0-4.4 AAAAA  Bahamas/No. Caribbean      

 

O: 28JUL2014 03:38:45  24.1S   66.9W mb=4.3  ANSS   de los Cobres Argentina      

P: 31JUL2014 82106     21.0S   67.0W 4.0-5.7 BCAAA  Argentina                  

 

O: 26JUL2014 22:48:52  14.3N   92.3W ML=3.6  UNAM   SUROESTE de CD HIDALGO, CHIS 

O: 27JUL2014 12:51:17  14.1N   92.6W ML=3.9  UNAM   SUROESTE de CD HIDALGO, CHIS 

O: 26JUL2014 19:14:51  14.5N   92.7W ML=3.5  UNAM   SUROESTE de CD HIDALGO, CHIS 

O: 26JUL2014 22:42:24  14.8N   93.2W ML=3.4  UNAM   SUROESTE de MAPASTEPEC, CHIS 

P: 29JUL2014 81907     14.0N   92.0W 3.5-5.1 BAAAA  Guatemala                  

 

O: 26JUL2014 17:11:39  17.5N   95.2W ML=4.0  UNAM   SUROESTE de SAYULA DE ALEMAN,

P: 31JUL2014 81903     18.0N   95.0W 3.5-5.3 BAAAA  Chiapas, Mexico            

 

O: 26JUL2014 16:53:53  15.5N   96.2W ML=3.4  UNAM   SUR de CRUCECITA, OAX        

O: 27JUL2014 06:34:42  16.3N   96.2W ML=4.0  UNAM   ESTE de MIAHUATLAN, OAX      

P: 31JUL2014 81903     18.0N   95.0W 3.5-5.3 BBAAA  Chiapas, Mexico            

 

O: 26JUL2014 22:57:19  17.0N  101.1W ML=3.8  UNAM   SUROESTE de TECPAN, GRO      

O: 26JUL2014 21:58:06  16.9N  101.2W ML=3.2  UNAM   SUROESTE de TECPAN, GRO      

O: 26JUL2014 22:32:44  17.1N  101.3W ML=3.6  UNAM   SUR de PETATLAN, GRO         

P: 28JUL2014 81913     17.0N  102.0W 3.5-5.3 AAAAA  Michoacan, Mexico          

 

AFRICA AND EUROPE

 

O: 27JUL2014 08:28:48  42.9N   47.7E ML=4.0  GSR  Eastern Caucasus               

P: 24JUL2014 82013     43.0N   44.0E 3.5-5.0 BABAA  Caucasus/Caspian Sea       

 

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

 

SOUTHWEST PACIFIC

 

O: 27JUL2014 04:02:11  24.8S  177.4W mb=5.1  ANSS   the Fiji Islands             

P: 31JUL2014 82114     25.0S  179.0W 4.0-5.5 BAAAA  Tonga Islands              

 

O: 27JUL2014 02:11:55   4.5S  152.0E mb=4.4  EMS NEW BRITAIN REGION, P.N.G.      

P: 28JUL2014 81887      6.0S  152.0E 4.0-5.5 ABAAA  New Britain                

 

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.

 

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: 27JUL2014 18:09:11  35.5N  140.6E mb=4.6  ANSS   SE of Naruto Japan           

P: 31JUL2014 81970     36.0N  141.0E 4.0-5.4 BAAAA  Off East Coast Honshu      

 

NEIC reported this earthquake of M 4.6 off Southeastern Honshu, Japan  was felt with intensity II-III in the area(s) of Narita and Yachiyo, Chiba; Yokohama, Kanagawa and Tokyo, Japan.

 

O: 27JUL2014 03:40:59  40.2N  143.1E mb=4.2  ANSS   ENE of Miyako Japan          

P: 27JUL2014 82017     41.0N  144.0E 3.5-5.6 AAAAA  Hokkaido, Japan            

 

O: 27JUL2014 09:24:17  39.7N  142.1E mb=4.5  ANSS   ENE of Miyako Japan          

P: 29JUL2014 81993     39.0N  143.0E 4.0-5.4 AAAAA  So. of Honshu              

 

O: 28JUL2014 03:36:38  47.0N  153.1E mb=4.2  EMS KURIL ISLANDS                   

P:  1AUG2014 82044     47.0N  153.0E 3.5-5.8 BAAAA  So. Kurils                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 27JUL2014 04:13:56  32.6N  115.8W ml=2.2  ANSS   WNW of Progreso Mexico       

P: 31JUL2014 81976     32.9N  115.6W 2.5-4.4 BAAAA  So. California             

 

O: 28JUL2014 06:45:40  33.0N  117.7W Ml=3.3  ANSS   WSW of Carlsbad California   

P: 30JUL2014 81977     33.0N  117.7W 2.5-4.9 AAAAA  So. California             

 

O: 27JUL2014 22:17:50  34.0N  117.2W ml=2.4  ANSS   SE of Redlands California    

O: 27JUL2014 22:17:50  34.0N  117.2W ML=2.4  NCSN    Redlands, CA

P: 31JUL2014 81978     33.9N  116.9W 2.5-4.5 BAAAA  So. California             

 

NEIC reported this earthquake of M 2.4 in Greater Los Angeles, CA was felt with intensity II in the area(s) of Redlands, California.

 

O: 27JUL2014 19:30:04  34.7N  118.4W ml=2.1  ANSS   Green Valley California      

O: 27JUL2014 19:30:04  34.7N  118.4W ML=2.1  NCSN    Elizabeth Lake, CA

P: 30JUL2014 81983     34.4N  118.6W 2.5-4.4 BAAAA  So. California             

 

O: 27JUL2014 10:46:39  36.1N  117.9W ml=2.6  ANSS   N of Inyokern California     

O: 27JUL2014 12:35:42  36.1N  117.9W ML=2.0  NCSN    Coso Junction, CA

O: 27JUL2014 10:46:39  36.1N  117.9W ML=2.6  NCSN    Coso Junction, CA

O: 27JUL2014 21:34:21  36.1N  117.9W ML=2.8  NCSN    Coso Junction, CA

O: 27JUL2014 15:24:07  36.1N  118.0W ML=2.0  NCSN    Coso Junction, CA

O: 27JUL2014 21:34:21  36.1N  117.9W ml=2.8  ANSS   N of Inyokern California     

P: 29JUL2014 81942     36.1N  118.1W 2.5-4.9 AAAAA  California/Nevada area     

 

O: 28JUL2014 02:46:09  36.9N  117.5W ml=2.4  ANSS   Lone Pine California         

O: 28JUL2014 02:46:09  36.9N  117.5W ML=2.4  NCSN    Scottys Castle, CA

P:  5AUG2014 82211     36.8N  117.5W 2.5-5.0 CAAAA  California/Nevada area     

 

O: 27JUL2014 06:29:08  37.4N  114.1W ml=2.0  ANSS   WSW of Enterprise Utah       

O: 27JUL2014 06:29:08  37.4N  114.1W ML=2.0  NCSN    Joseco, NV

P: 30JUL2014 81962     37.3N  114.9W 2.5-4.6 BAAAA  Nevada area                

 

O: 27JUL2014 17:25:14  38.8N  122.8W Md=2.1  ANSS   The Geysers California       

O: 27JUL2014 17:25:14  38.8N  122.8W ML=2.1  NCSN    The Geysers, CA

P: 24JUL2014 81950     38.7N  122.7W 2.5-4.4 BAAAA  Central California         

 

O: 27JUL2014 10:22:47  39.5N  123.1W md=2.4  ANSS   ENE of Willits California    

O: 27JUL2014 10:22:47  39.5N  123.1W ML=2.4  NCSN    Lake Pillsbury, CA

P: 26JUL2014 81951     39.3N  123.2W 2.5-4.6 AAAAA  Central California         

 

O: 27JUL2014 08:08:47  40.0N  120.6W Md=2.0  ANSS   NNW of Portola California    

O: 27JUL2014 08:08:47  40.0N  120.6W ML=2.0  NCSN    Portola, CA

P: 23JUL2014 82035     40.0N  120.9W 2.5-4.6 BAAAA  Northern California        

 

ALASKA

 

O: 27JUL2014 22:00:10  51.4N  174.6W ml=3.2  ANSS   SSW of Atka Alaska           

P: 25JUL2014 82053     51.8N  176.0W 3.5-4.9 AAAAA  Andreanoff Isls, Aleutians 

 

O: 27JUL2014 03:38:45  51.8N  178.4E ml=3.5  ANSS   Little Sitkin Island Alaska  

P:  2AUG2014 82066     51.0N  178.0E 4.0-5.7 BAAAA  Rat Islands                

 

O: 27JUL2014 13:41:09  58.9N  155.8W ml=3.4  ANSS   King Salmon Alaska           

P: 30JUL2014 82078     61.3N  158.5W 3.2-5.1 BCBAA  Central Alaska             

 

O: 28JUL2014 04:59:53  62.4N  149.8W ml=3.0  ANSS   ENE of Talkeetna Alaska      

P: 30JUL2014 82079     63.0N  148.6W 3.2-5.0 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 27JUL2014 03:24:39  41.9N  119.6W ml=2.1  ANSS   ESE of Lakeview Oregon       

P: 27JUL2014 82040     42.1N  120.3W 2.0-4.1 AAAAA  Oregon state, U.S.         

 

ROCKY MOUNTAINS REGION

 

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

 

EASTERN U.S./CANADA

 

Earthquakes Canada reported an earthquake of M 2.7 near Pembroke, Canada  was felt with intensity II-III in the area(s) of Pembroke. About 20 residents of the area reported to NRC that they felt or noticed effects from the earthquake. The largest earthquake to hit the area in the past 200 years was an M 6.2 in January, 1935. An M 5.2 hit the area on May 17, 2013. This may be an aftershock of that event.

 

O: 27JUL2014 03:03:43  32.9N   80.1W md=1.9  ANSS   Ladson South Carolina        

O: 27JUL2014 03:03:43  32.9N   80.1W ML=1.9  CESN   Lincolnville, SC 

P:  1AUG2014 81994     33.0N   82.0W 2.0-3.9 BABAA  Southeast U.S.             

 

O: 27JUL2014 22:19:22  36.1N   96.8W mb=3.2  ANSS   WNW of Yale Oklahoma         

O: 27JUL2014 09:28:06  36.3N   97.5W mb=2.8  ANSS   W of Perry Oklahoma          

O: 27JUL2014 22:19:22  36.1N   96.8W ML=3.2  CESN   Glencoe, OK 

O: 27JUL2014 20:39:10  36.8N   97.9W ML=2.9  CESN   Wakita, OK 

O: 27JUL2014 09:28:06  36.3N   97.5W ML=2.8  CESN   Garber, OK 

O: 27JUL2014 20:39:10  36.8N   97.9W mb=2.9  ANSS   W of Medford Oklahoma        

P:  1AUG2014 81998     36.0N   97.0W 2.0-3.9 BAAAA  Southern Plains            

 

NEIC reported this earthquake of M 3.2 in Oklahoma was felt with intensity II-III in the area(s) of Norman, Oklahoma, Oklahoma City, Burns Flat, Pawnee, Stillwater and Tulsa, Oklahoma

 

HAWAII

 

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