STRONG SOLAR FLARES TRACK SIGNIFICANT EARTHQUAKES

 

EARTHQUAKE SUMMARY FOR OCTOBER 2, 2022

 

Several large solar flares occurred today. The first of these was an M6.7 (SWPC #6640) starting about 02:08 UT and peaking about 02:21 UT. (see table below). The second was an X1.0 (#6890) starting about 19:53 UT and peaking at about 20:25 UT. Larger solar flares preceded flare #6640  this year as an X2.2 on April 20, 2022, the strongest in the past 2 years and a series in late April of X1.1. These are the strongest flares in more than a month - since an M8.6 on August 29, 2022 (#8110). Following are the parameters for these events. A more complete listing from  SWPC is located in the "External Effects) section of this and all summaries.

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

#-------------------------------------------------------------------------------

 

6640       0208   0221      0226   M8.7      (October 2, 2022)   3.6E-02  

6860       1723   1734      1753   C3.6      (October 2, 2022)   2.5E-03  

6880       1849   1908      1925   C8.1      (October 2, 2022)   1.4E-02  

6890       1953   2025      2034   X1.0      (October 2, 2022)   8.6E-02  

 

 

An M 5.5 occurred in the region of the Mariana Islands north of Guam today. It was not reported felt in this remote region. This earthquake occurred within minutes of local solar noon shortly after an M8.6 class solar flare began and near the height of this flare. Aftershocks of M 4.8 and 5.4  occurred at the end of Solar flare #6870, and was also possibly promoted by SFE. Solar Flare Effects (SFE) is maximized at local solar noon and this is a classic example of a moderately large quake triggered by SFE at local solar noon. A similar M 5.4 hit this area of the Mariana Islands on October 1 and occurred at the beginning of flare #6320, a C-class flare. The M 5.5 is the strongest earthquake in the current swarm which began with a pair of M 5.1 events on September 28. It is the strongest earthquake within about 200 km of this epicenter in the past two years. The last earthquake of larger magnitude was an M 5.6 on August 3, 2020. An M 6.4 occurred south of this on August 28, 2018 and these may be long-term aftershocks of that event.

 

Forecast 147098 had expected this activity was likely within about 100 km around October 4. This activity is at 102-103 degrees from the M 7.6 in Michoacan, Mexico of September 19, 2022 and may have been promoted by energy from that source. 

 

O: 02OCT2022 18:27:30  17.0N  147.2E mb=4.8  EMSC   MARIANA ISLANDS REGION

O: 02OCT2022 18:31:16  17.1N  147.1E mb=5.4  EMSC   MARIANA ISLANDS REGION

O:  2OCT2022 02:14:41  17.0N  147.1E Mw=5.5  EMSC   MARIANA ISLANDS REGION       

P:  4OCT2022 147098    17.0N  146.0E 4.0-5.5 AAAAA  No. Marianas               

 

The X1.0 solar flare was accompanied by an M 5.3 earthquake in Taiwan. NEIC reported this earthquake was felt with intensity II in Nantou, Taiwan. CWB reported this earthquake with M 5.3 was felt with intensity IV in Hualien, III in Nantou, Taitung, Yunlin, ; II in Miaoli, Pingtung, Yilan, Taichung, Changhua, I in Taipei, Miaoli, Taoyuan, Tainan, Hsinchu, Kaohsiung, Counties, Taiwan. This is not a classical aftershock of the M 6.9 in Taiwan of September 18, 2022 as it occurred about 100 km northeast of that epicenter. It is the strongest event in Taiwan since an M 5.5 on September 18, 2022.  This earthquake occurred at the exact energy peak of flare 6890 and was probably triggered by SFE. Forecast 146870 expected today's activity in Taiwan was likely in late September or early October within about 100 km.

 

O:  2OCT2022 20:25:22  23.5N  121.5E ML=5.3  TAI    Hualien, Taiwan              

O:  2OCT2022 20:25:21  23.4N  121.6E Mw=4.7  EMSC   TAIWAN                       

P: 28SEP2022 146870    24.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

P: 30SEP2022 146866    25.0N  123.0E 4.0-5.4 AABAA  Ryukyu Islands             

 

The strongest earthquake in the world today was an M 5.6 in the Gulf of California, Mexico. NEIC reported it was felt with intensity II-III in Baja California at Los Cabos, Cabo San Lucas and La Palma Sinaloa and possibly beyond this area. This event occurred within minutes of local solar noon and was probably promoted by SFE and by strong tidal stresses which maximize near this hour. It occurred shortly before the official beginning of the X1.0 class solar flare and may have been promoted by preliminary solar activity to this flare such as flare #6880 as it occurred at the maximum of this flare. This earthquake occurred as Hurricane Orlene made landfall several hundred km to the east of this epicenter on the coast of Jalisco, Mexico today. This summary had expected that Orlene was likely to have this seismic effect upon landfall

in previous issues as:

 

"HURR  ORLENE   2022-10-03  00:00 UT  23.3N  105.6W   55 kts  West of Michoacan, Mexico

 

Hurricane Orlene (16E) continued today west of Michoacan, Nexico  with winds up to 130 kts. It is expected to track to the north and may enhance aftershocks in the next several days in Michoacan, Baja and Colima, Mexico. It is likely to make landfall in Colima around October 3" (October 1-3, 2022)

 

A similar earthquake of M 5.6-5.7 hit this area within about 200 km on September 23, 2021 and as an M 6.1 on May 22, 2020. This is the strongest earthquake in the Gulf of  California in the past two years. An M 5.4 occurred about 500 km northwest of this on September 28, 2022. There were no earthquake of M>=5.6 between 2016 and 2020. At the time of the M 5.4 north of this on September 28 this summary noted in this regard:

 

"An M 5.4 occurred today in the Baja Peninsula of Mexico today. NEIC reported it was felt with light intensity in Baja California at Santa Rosalia, Tlalnepantla and Obregon, Sonora. This may be related to the recent landfall of Hurricane Ida in southwestern Florida and Hurricane Fiona as noted in this summary in previous issues:

 

"Hurricane Fiona continued north of the Turks and Cacos Islands near Bermuda as a category 4 storm with winds up to 130 kts. It is expected to track to the north making landfall with the North American Continental slope and rise in the next day. This could help promote seismicity along the western edge of the North American Plate and may have helped trigger the M 7.6 mainshock of September 19 and the 6.8 aftershock in Mexico today.  The area of northern California and north could see enhanced seismicity

 

"Hurricane Fiona continued  over Nova Scotia today with winds up to 100 kts. It is expected to track to the north making landfall with Nova Scotia today. This appears to be one of the strongest storms to hit Nova Scotia in recent years. This could help promote seismicity along the western edge of the North American Plate.  The area of northern California and north could see enhanced seismicity at this time. Some enhanced seismicity may also occur in eastern U.S. and Canada as this storm moves north  

 

"Hurricane Ian (TD 9) continued South of Cuba with winds up to 105 kts. It is expected to track to the west and north over the next several days reaching as a hurricane. It could make landfall near Tampa, Florida. The area is under mandatory evacuation orders preceding this hurricane which is the strongest to hit the Tampa area in decades. Enhanced seismicity may occur in the Caribbean area and central America while this storm is in the area.

 

This is the strongest earthquake within about 200 km of this epicenter since an  M  6.3 on January 19, 2018. Earthquakes of M 5.4 also occurred in the region on July 31, 2021 and January 21, 2022." (September 28, 2022)

 

Forecast 146858 had expected this event in the Gulf of California was likely around September 30 within about 50 km of this epicenter.

 

O: 02OCT2022 19:44:43  23.7N  108.6W ML=4.4  EMSC   GULF OF CALIFORNIA

O:  2OCT2022 19:00:22  23.6N  108.9W Mw=5.6  EMSC   GULF OF CALIFORNIA           

P: 30SEP2022 146858    24.0N  109.0W 3.5-5.0 AAAAA  Gulf of California         

 

Moderately large earthquakes also occurred today in Oceanic provinces. The strongest of these was an M 5.7 in the South Sandwich Islands, but a more unusual quake hit the mid-Indian Ridge with M 5.6. Both of these occurred within about an hour of local solar noon and may have been promoted by high tidal stresses or SFE. Forecast 147306 had expected the M 5.6 in the Mid-Indian Ridge was likely within about 100 km around October 3. The antipode (38N 102W) of this event is in southern Colorado and New Mexico where light to moderate earthquakes occasionally occur and may be associated with moderately large quakes near this epicenter in the Mid-Indian Ridge.

 

O:  2OCT2022 07:32:25  37.9S   77.9E Mw=5.6  EMSC   MID-INDIAN RIDGE             

P:  3OCT2022 147306    37.0S   77.0E 4.0-5.4 AAAAA  So. Indian Ocean           

 

Forecasts 147046 and 147315 had expected the event in the South Sandwich Islands of M 5.7  within about 50 km was likely in late September or early October.

 

O:  2OCT2022 13:05:37  57.8S   25.5W Mw=5.7  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  3OCT2022 147315    58.0S   25.0W 4.0-6.2 AAAAA  So. Sandwich Islands       

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 BAAAA  So. Sandwich Islands       

 

The strongest earthquake in the U.S. or Canada today was an M 4.6 in Southern Alaska. The last earthquake within about 100 km of this epicenter of larger magnitude than M 4.6 was an M 4.7 on March 23, 2022 about 100 km northeast of  today's epicenter. This event occurred near local solar noon and was probably promoted by SFE and/or tidal stresses which maximize near this hour. Forecast 147253 had expected today's activity in this area was likely around

October 6.

 

O:  2OCT2022 23:03:06  59.5N  154.6W mb=4.6  EMSC   SOUTHERN ALASKA              

P:  6OCT2022 147253    61.2N  151.2W 3.2-5.0 BBBAA  Central 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:  2OCT2022 20:25:22  23.5N  121.5E ML=5.3  TAI    Hualien, Taiwan              

O:  2OCT2022 20:25:21  23.4N  121.6E Mw=4.7  EMSC   TAIWAN                        

P: 28SEP2022 146870    24.0N  122.0E 4.0-5.4 BAAAA  Taiwan                     

P: 30SEP2022 146866    25.0N  123.0E 4.0-5.4 AABAA  Ryukyu Islands             

 

O:  2OCT2022 21:12:10  33.2N   92.3E mb=4.4  EMSC   SOUTHERN QINGHAI, CHINA      

P:  1OCT2022 147170    33.0N   96.0E 3.5-5.1 AACAA  So. China                  

 

O:  2OCT2022 23:28:26  36.1N   70.9E Mw=4.4  EMSC   HINDU KUSH REGION, AFGHANISTAN

O:  2OCT2022 13:24:13  37.2N   70.4E mb=4.5  EMSC   HINDU KUSH REGION, AFGHANISTAN

P:  4OCT2022 147140    36.0N   71.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O:  2OCT2022 17:49:39  38.4N  113.8E mb=4.7  EMSC   SHANXI-HEBEI BORDER REG, CHINA

P:  4OCT2022 147170    39.0N  116.0E 3.5-4.9 AABAA  So. China                  

 

NEIC reported this earthquake of M 4.7 in Eastern China was felt with intensity II-III in the area(s) of Eastern China in Shijiazhuang, Hebei (IV) and Taiyuan, Shanxi, China.

 

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

 

INDONESIA AND PHILIPPINES

 

O:  2OCT2022 10:57:58   2.7N  127.9E ML=4.4  EMSC   MOLUCCA SEA                  

P:  6OCT2022 147054     2.0N  128.0E 4.0-5.4 BAAAA  Halmahera                  

 

O:  2OCT2022 21:03:02   4.7N  126.1E mb=4.9  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 23SEP2022 146800     4.0N  126.0E 4.0-5.4 CAAAA  Mindanao, Philippines      

P: 29SEP2022 146798     3.0N  127.0E 4.0-5.6 BBAAA  Halmahera                  

 

O:  2OCT2022 20:19:39   5.4S  129.2E mb=4.5  EMSC   BANDA SEA                     

P:  1OCT2022 147079     6.0S  131.0E 4.0-5.4 AABAA  West Irian, PNG            

 

O:  3OCT2022 05:34:36   6.5S  130.1E mb=4.4  EMSC   BANDA SEA                    

P:  1OCT2022 147079     6.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O:  2OCT2022 09:55:40   7.4S  120.3E mb=4.4  EMSC   FLORES SEA                   

P:  3OCT2022 147066     7.0S  121.0E 4.0-5.4 AAAAA  Flores Island area         

 

O:  2OCT2022 16:01:08   9.6N  127.0E mb=4.5  EMSC   PHILIPPINE ISLANDS REGION    

P:  1OCT2022 147050     9.0N  126.0E 4.0-5.6 AAAAA  Central Philippines        

P: 30SEP2022 146794     9.0N  126.0E 4.0-5.6 AAAAA  Central Philippines        

 

O:  3OCT2022 00:25:30   9.7S  119.0E ML=4.1  EMSC   SUMBA REGION, INDONESIA      

P:  3OCT2022 147066     7.0S  121.0E 4.0-5.4 ACBAA  Flores Island area         

P: 30SEP2022 146806     8.0S  121.0E 4.0-5.5 BBBAA  Flores Island area         

 

O:  2OCT2022 18:17:53  10.0N  126.0E mb=4.4  EMSC   MINDANAO, PHILIPPINES        

P:  1OCT2022 147050     9.0N  126.0E 4.0-5.6 AAAAA  Central Philippines        

 

NEIC reported this earthquake of M 4.5 in northern Mindanao, Philippines was felt with intensity II-III in the area(s) of northern Mindanao, Philippines iin Caraga at Union, Tandag.

 

 

O: 02OCT2022 18:27:30  17.0N  147.2E mb=4.8  EMSC   MARIANA ISLANDS REGION

O: 02OCT2022 18:31:16  17.1N  147.1E mb=5.4  EMSC   MARIANA ISLANDS REGION

O:  2OCT2022 02:14:41  17.0N  147.1E Mw=5.5  EMSC   MARIANA ISLANDS REGION       

P:  4OCT2022 147098    17.0N  146.0E 4.0-5.5 AAAAA  No. Marianas               

 

CENTRAL AND SOUTH AMERICA

 

O: 03OCT2022 01:48:48   8.7S   75.9W mb=4.6  EMSC   CENTRAL PERU

O: 03OCT2022 03:26:38   8.7S   76.0W ML=4.2  EMSC   CENTRAL PERU

O: 03OCT2022 02:12:48   8.8S   76.0W ML=4.1  EMSC   CENTRAL PERU

O:  3OCT2022 02:00:39   8.6S   76.1W mb=4.5  EMSC   CENTRAL PERU                 

P:  4OCT2022 147071     9.0S   81.0W 4.0-5.4 AACAA  No. Peru                   

P: 10OCT2022 147267    10.0S   75.0W 3.5-5.2 CBAAA  Brazil                     

 

O:  2OCT2022 22:19:14  14.0N   93.7W mb=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P:  3OCT2022 147088    14.0N   92.0W 3.5-5.2 AABAA  Guatemala                  

 

O:  2OCT2022 23:17:29  14.8N   92.7W ML=4.3  EMSC   OFFSHORE CHIAPAS, MEXICO     

P:  3OCT2022 147088    14.0N   92.0W 3.5-5.2 AAAAA  Guatemala                  

 

O:  2OCT2022 07:55:15  15.7S   74.2W ML=4.1  EMSC   NEAR COAST OF SOUTHERN PERU  

P:  2OCT2022 147276    16.0S   73.0W 4.0-5.6 AAAAA  So. Peru/Bolivia           

 

O:  2OCT2022 16:01:33  17.3N   96.0W ML=4.2  EMSC   OAXACA, MEXICO               

P:  6OCT2022 147100    17.0N   96.0W 3.5-5.4 BAAAA  Oaxaca, Mexico             

P: 29SEP2022 146849    18.0N   97.0W 3.5-5.4 BAAAA  Oaxaca, Mexico             

 

O:  3OCT2022 01:02:57  18.0N   67.0W Md=3.1  EMSC   PUERTO RICO                  

P:  4OCT2022 147102    18.0N   67.0W 3.4-5.3 AAAAA  Puerto Rico                

 

O: 03OCT2022 02:59:30  18.5N  103.7W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O:  2OCT2022 11:45:09  18.0N  104.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P:  2OCT2022 147094    18.0N  103.0W 3.5-5.4 AAAAA  Michoacan, Mexico          

P: 28SEP2022 146841    18.0N  104.0W 3.5-5.5 BAAAA  Michoacan, Mexico          

 

O: 03OCT2022 06:53:30  19.0N   64.3W Md=3.8  EMSC   VIRGIN ISLANDS REGION

O: 03OCT2022 05:36:53  19.2N   65.5W Md=3.4  EMSC   PUERTO RICO REGION

O:  3OCT2022 03:12:17  18.9N   66.5W Md=3.4  EMSC   PUERTO RICO REGION           

P:  1OCT2022 147102    19.0N   66.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O:  2OCT2022 10:36:37  21.2S   68.8W ML=4.0  EMSC   TARAPACA, CHILE              

P:  2OCT2022 147284    21.0S   68.0W 4.0-5.5 AAAAA  Argentina                  

 

O:  3OCT2022 00:09:13  27.6N  111.6W ML=4.0  EMSC   GULF OF CALIFORNIA           

P:  4OCT2022 147111    28.0N  112.0W 3.5-5.3 AAAAA  Gulf of California         

 

O: 02OCT2022 19:44:43  23.7N  108.6W ML=4.4  EMSC   GULF OF CALIFORNIA

O:  2OCT2022 19:00:22  23.6N  108.9W Mw=5.6  EMSC   GULF OF CALIFORNIA           

P: 30SEP2022 146858    24.0N  109.0W 3.5-5.0 AAAAA  Gulf of California         

 

AFRICA AND EUROPE

 

 

O:  2OCT2022 04:04:05  34.3N   26.2E mb=5.1  EMSC   CRETE, GREECE                

P:  1OCT2022 147121    35.0N   25.0E 3.0-4.8 AAAAA  Aegean Sea                 

P: 29SEP2022 146888    34.0N   25.0E 3.0-4.9 BAAAA  Crete                      

 

O:  3OCT2022 00:51:57  36.8N    6.4E mb=4.0  EMSC   NORTHERN ALGERIA             

P: 28SEP2022 146927    37.0N    4.0E 3.0-4.7 BABAA  Western Mediterranean      

 

O:  2OCT2022 10:58:03  37.0N   28.9E ML=4.5  EMSC   WESTERN TURKEY               

P:  1OCT2022 147176    38.0N   30.0E 3.5-5.1 AAAAA  Turkey                     

P: 30SEP2022 146872    37.0N   26.0E 3.0-4.7 AABAA  Aegean Sea                 

 

 

NEIC reported this earthquake of M 4.7 in Western Turkey was felt with intensity II-III in the area(s) of Western Turkey in Mugla.

This earthquake occurred at the end of flare #6730 - a C-class flare

near local solar noon and may have been affected by energy from those events.

 

O:  2OCT2022 13:08:28  37.1N    4.1W ML=2.7  EMSC   SPAIN                        

P: 26SEP2022 146893    37.0N    3.0W 3.5-5.2 CAAAA  Morocco/Spain              

 

O:  2OCT2022 07:15:16  71.4N    5.4W Mw=3.7  EMSC   JAN MAYEN ISLAND REGION      

P:  6OCT2022 147265    72.0N    0.0E 3.0-4.6 BAAAA  Norway                     

 

O:  2OCT2022 14:33:53  72.9N    6.6E Mw=3.7  EMSC   NORWEGIAN SEA                

P:  6OCT2022 147265    72.0N    0.0E 3.0-4.6 BAAAA  Norway                     

 

SOUTHWEST PACIFIC

 

O:  2OCT2022 19:07:35  14.6S  167.3E mb=4.6  EMSC   VANUATU                      

P: 26SEP2022 147020    14.0S  167.0E 4.0-5.4 CAAAA  Vanuatu Islands            

 

O:  3OCT2022 05:47:16  18.6S  177.8W mb=4.3  EMSC   FIJI REGION                  

P:  4OCT2022 147280    18.0S  177.0W 4.0-5.4 AAAAA  Tonga Islands              

 

OCEAN RIDGES

 

O:  2OCT2022 07:32:25  37.9S   77.9E Mw=5.6  EMSC   MID-INDIAN RIDGE             

P:  3OCT2022 147306    37.0S   77.0E 4.0-5.4 AAAAA  So. Indian Ocean           

 

O:  2OCT2022 13:05:37  57.8S   25.5W Mw=5.7  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  3OCT2022 147315    58.0S   25.0W 4.0-6.2 AAAAA  So. Sandwich Islands       

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 BAAAA  So. Sandwich Islands       

 

O: 02OCT2022 16:09:24  54.1N   35.2W mb=4.9  EMSC   REYKJANES RIDGE

O:  2OCT2022 16:44:36  53.9N   35.2W mb=4.5  EMSC   REYKJANES RIDGE              

P:  2OCT2022 147238    53.0N   34.0W 4.0-5.4 AAAAA  North Mid-Atlantic Ridge   

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 CAAAA  North Mid-Atlantic Ridge   

 

 

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:  2OCT2022 13:25:29  26.8N  126.6E mb=4.7  EMSC   RYUKYU ISLANDS, JAPAN        

P:  9OCT2022 147118    26.0N  126.0E 4.0-5.4 CAAAA  Ryukyu Islands             

 

NEIC reported this earthquake of M 4.8 in the Ryukyu Islands, Japan  was felt with intensity II-III in the area(s) of  the Ryukyu Islands, Japan in Nagasaki, Japan.

 

O:  2OCT2022 22:45:34  38.4N  142.6E mb=4.5  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 27SEP2022 146919    39.0N  143.0E 4.0-5.4 BAAAA  So. of Honshu              

 

O:  3OCT2022 03:07:30  40.3N  139.0E ML=4.4  EMSC   NEAR WEST COAST OF HONSHU, JAP

P:  3OCT2022 147189    42.0N  142.0E 3.5-5.4 ABBAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O:  2OCT2022 18:16:54  33.0N  115.6W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

O:  3OCT2022 06:16:26  33.0N  115.9W Ml=2.7  EMSC   SOUTHERN CALIFORNIA          

P:  4OCT2022 147162    32.4N  115.8W 2.5-4.4 AAAAA  So. California             

 

O:  2OCT2022 22:54:20  38.8N  122.8W Md=2.4  EMSC   NORTHERN CALIFORNIA          

P:  4OCT2022 147133    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O:  2OCT2022 21:24:28  39.3N  123.3W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P:  2OCT2022 147134    39.2N  123.1W 2.5-4.6 AAAAA  Central California         

 

ALASKA

 

O: 03OCT2022 00:06:08  59.9N  153.3W ML=3.3  EMSC   SOUTHERN ALASKA

O:  2OCT2022 12:31:05  59.1N  152.9W ML=3.1  EMSC   SOUTHERN ALASKA              

P:  6OCT2022 147253    61.2N  151.2W 3.2-5.0 BBAAA  Central Alaska             

 

O:  2OCT2022 23:03:06  59.5N  154.6W mb=4.6  EMSC   SOUTHERN ALASKA              

P:  6OCT2022 147253    61.2N  151.2W 3.2-5.0 BBBAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O:  2OCT2022 12:46:37  48.8N  122.2W Ml=2.1  EMSC   WASHINGTON                   

P: 30SEP2022 146965    49.0N  123.0W 2.0-3.9 AAAAA  Washington state, U.S.     

 

O:  3OCT2022 04:27:05  47.5N  129.2W MB=3.1  ECAN of Tofino, BC                  

O:  3OCT2022 03:46:05  47.5N  129.0W MB=3.4  ECAN of Tofino, BC                  

P:  1OCT2022 147220    48.9N  129.3W 2.8-5.0 ABAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

O: 03OCT2022 04:29:19  31.6N  104.0W ML=2.0  EMSC   WESTERN TEXAS

O: 03OCT2022 06:06:29  31.6N  104.0W ML=2.1  EMSC   WESTERN TEXAS

O: 03OCT2022 06:07:54  31.6N  104.0W ML=2.8  EMSC   WESTERN TEXAS

O:  3OCT2022 04:29:19  31.6N  104.0W ML=2.0  EMSC   WESTERN TEXAS                

P:  4OCT2022 147158    31.7N  103.0W 2.0-3.9 AAAAA  SW U.S.A                   

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 CAAAA  SW U.S.A                   

 

O: 03OCT2022 01:43:37  32.5N  102.0W mb=3.1  EMSC   WESTERN TEXAS

O:  3OCT2022 01:53:25  32.5N  102.1W ML=2.4  EMSC   WESTERN TEXAS                

P:  4OCT2022 147158    31.7N  103.0W 2.0-3.9 AAAAA  SW U.S.A                   

 

O:  2OCT2022 07:31:08  44.4N  115.1W ML=2.3  EMSC   SOUTHERN IDAHO               

P:  4OCT2022 147197    44.3N  115.1W 2.0-4.3 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 02OCT2022 14:05:17  35.9N   97.9W ML=2.7  EMSC   OKLAHOMA

O: 02OCT2022 21:08:31  35.9N   97.9W ML=2.8  EMSC   OKLAHOMA

O: 02OCT2022 18:43:05  36.0N   97.9W ML=2.1  EMSC   OKLAHOMA

O: 02OCT2022 23:15:03  36.0N   97.9W ML=2.2  EMSC   OKLAHOMA

O:  2OCT2022 11:18:59  35.9N   97.9W mb=2.5  EMSC   OKLAHOMA                      

P:  1OCT2022 147174    36.0N   97.0W 2.0-4.4 AAAAA  Southern Plains            

 

NEIC reported this earthquake of M 2.6 in Oklahoma was felt with intensity II-III in the area(s) of Oklahoma with IV in Kingfisherm Hennessey with lesser shaking in Dover, Tulsa, Oklahoma.

An earlier M 2.6 in Oklahoma was felt with intensity IV in Kingfisher and II-III in Dover, Guthrie, Perry and Stillwater.

 

O:  2OCT2022 07:06:10  35.8N   92.6W Md=2.1  EMSC   ARKANSAS                     

P:  3OCT2022 147145    36.0N   91.0W 2.0-4.0 AABAA  New Madrid area            

P: 29SEP2022 146895    35.0N   92.0W 2.0-3.9 BAAAA  New Madrid area            

 

O:  3OCT2022 00:09:02  37.1N   97.8W mb=2.5  EMSC   KANSAS                       

P:  4OCT2022 147174    37.0N   98.0W 2.0-4.4 AAAAA  Southern Plains            

 

O: 30SEP2022 09:21:46  44.4N   74.7W MB=1.5  ECAN of Cornwall, ON                

P:  1OCT2022 147201    44.0N   73.0W 2.0-3.9 AABAA  New England                

P:  4OCT2022 147203    45.0N   74.0W 2.0-4.1 BAAAA  New York State             

 

O: 30SEP2022 06:47:32  47.7N   70.1W MB=1.8  ECAN of La Malbaie, QC              

P:  3OCT2022 147194    47.0N   69.0W 2.0-4.1 BAAAA  Maine                      

 

O: 30SEP2022 04:39:11  46.2N   77.0W MB=1.5  ECAN of Petawawa, ON                

P: 24SEP2022 146946    47.0N   76.0W 2.0-4.3 CAAAA  New York State             

 

O: 30SEP2022 04:27:55  49.1N   67.6W MB=2.5  ECAN of Godbout, QC                 

P:  5OCT2022 147194    49.3N   67.5W 2.0-4.2 BAAAA  Maine                       

 

O: 30SEP2022 02:50:01  70.0N   61.1W MB=3.6  ECAN of Clyde River, NU             

 

O: 28SEP2022 20:19:16  41.7N   81.5W MB=1.9  ECAN of Cleveland, OH               

P: 24SEP2022 146953    41.8N   81.4W 2.0-4.1 BAAAA  Ohio/Lake Erie              

 

HAWAII

 

NEIC reported  earthquakes of M 3.0 and M 3.2 in Hawaii were felt with intensity II-III in the area(s) of Hawaii in Kaunakakai and at Naalehu.

 

 

 

 

 

 

 

 

MODERATE QUAKE SHAKES DOMINICAN REPUBLIC

 

EARTHQUAKE SUMMARY FOR OCTOBER 1, 2022

 

 

A moderate earthquake of M 4.7 was widely felt in the Dominican Republic today. NEIC reported it was felt with intensity II-III in the Dominican Republic at Ramon Santana San Pedro de Macoria, El Seibo, Los Llanos, Santo Domingo, El Carril, San Cristobal and in Puerto Rico at Mayaguez and Aguas Buenas.

Hurricane Fiona passed over this epicenter a week ago and enhanced seismicity had been expected in the region as a result of energy from that storm as reported in earlier issues of this summary:

 

"TS Fiona continued today over Puerto Rico with winds up to 85 kts. Major flooding and complete power outage occurred on Puerto Rico today. It is expected to track to the west over the next several days reaching Puerto Rico in the next two  days as a major storm. It could help promoted enhanced seismicity in the Virgin Islands, Leeward Islands and Puerto Rico around September 18-19." (September 18-22, 2022)

 

The only earthquake in the Dominican Republic in the past two years with M>4.7 was an M 5.0 about 50 km southeast of this on June 14, 2021. An M 4.6-4.7 hit about 300 km northwest of this epicenter on July 31, 2022. At the time this summary noted:

 

 

"A moderate earthquake of M 5.0 occurred today midway between Puerto Rico and the Dominican Republic. NEIC reported it was felt with intensity IV in Higuey, Dominican Republic and II-III in the Dominican Republic at Boca de Yuma, Otra Banda La Altagracia, La Romana, San Pedro de Marcoris, Los Llanos, and in Puerto Rico at Aguada, Cabo Rojo, Mayaguez and Anasco. It was preceded by an M 4.1 foreshock felt with intensity IV in Otra Banda and II in Santo Domingo, Dominican Republic. NEIC reported these earthquake in Puerto Rico and the Dominican Republic were felt with intensity II-III in the area(s) of Puerto Rico at Mayaguez and Gurabo. The solar eclipse of June 10 was first visible in this area of the northern Caribbean as previously discussed in this summary. In the previous issue the increased seismicity in this region had been noted as:

 

"Enhanced seismicity in the Virgin Islands and in areas of northeastern Asia is expected to continue for several more days. After several days of enhanced

regional activity today's was muted and seemed to be nearer the border of Puerto Rico and the Dominican Republic than in the Virgin Islands area." (June 13-14, 2021)

 

Today's event of M 5.0 is the strongest within about 100 km since an M 5.3 on February 3, 2019. The only other such event in the region in the past 9 years was an M 5.8 on May 28, 2014." (June 14, 2021)

 

The M 4.7 occurred within about half an hour of local solar noon and was likely promoted by strong tidal stresses which maximize near this hour. It follows an M 5.2 in the Virgin Islands two days ago and had been expected within about 50 km of this epicenter in forecast 147102 in early October. This activity is at 143-145 degrees from the earthquake of M 7.6 in New Guinea of September 10 and the M 7.0 in Luzon, Philippines of July 27, 2022 and may have been promoted by energy from those sources.

 

O:  1OCT2022 17:31:44  18.5N   69.1W mb=4.7  EMSC   DOMINICAN REPUBLIC           

O: 02OCT2022 04:39:06  19.1N   69.6W ML=3.1  EMSC   DOMINICAN REPUBLIC

P:  4OCT2022 147102    18.0N   69.0W 3.4-5.2 BAAAA  Puerto Rico                

 

An earthquake of M 5.5 also occurred today off the coast of Chiapas, Mexico. NEIC reported it was felt with maximum intensity IV in Chiapas at Tuxtla, Gutierrez and II-III in Soyalo, San Cristobal. It was also lightly felt in Quetzaltenango, Guatemala, Oaxaca, Mexico and possibly as far as Mexico City. The last earthquake in Chiapas, Mexico of equal or larger magnitude in the past two  years was an M 5.5 nearly 2 years ago on October 12, 2020. This earthquake occurred near local solar noon and may have promoted by strong tidal stresses. Forecast 147084 had expected today's activity was likely around October 5 within about 100 km in Chiapas. This earthquake is located at 120 degrees (node 3)  from the M 7.0 in Luzon, Philippines (like the M 7.6 in Michoacan) and at 101 degrees from the Loyalty Islands M 7.0 of September 14 and may have been promoted by energy associated with those source.

 

O: 01OCT2022 16:36:54  15.1N   93.9W Mw=5.5  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 01OCT2022 18:54:34  14.9N   94.0W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO

O:  1OCT2022 20:03:11  14.8N   94.1W ML=4.3  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P:  5OCT2022 147084    15.0N   95.0W 3.5-5.2 BAAAA  Chiapas, Mexico            

 

An M 5.5-5.7 was also felt in the area of Kyushu, Japan today. NEIC reported it was felt with maximum intensity V in Miyazaki, Japan in Nobeoka and IV in Miyazaki and IV in Kumamoto with lesser shaking in Kagoshima, Japan. Super Typhoon Nanmadol passed near this epicenter last week and may have helped promote seismicity in this region at this time as noted in previous issues of this summary:

 

 

"TYPH NANMADOL  2022-09-18  00:00 UT  30.7N  130.7E  115 kts  Kyushu, Japan

 

Typhoon Nanmadol (TD 16W) continued today near Kyushu, Japan with winds up to 115 kts. It is expected to track to the northwest over the next several days reaching southern Kyushu, Japan about September 18 as a typhoon. A moderate to strong earthquake is possible as this storm passes through  southern and central Japan." (September 20, 2022)

 

While an M 5.5 hit Kyushu on October 6, 2021, the last earthquake of larger or equal magnitude in Kyushu was an M 6.1 on May 9, 2019. At the time this summary noted in this regard:

 

 

"The strongest earthquake felt in the world today was an M 6.1-6.3 in Kyushu, Japan. It was preceded by an M 5.5 foreshock. NEIC reported maximum intensity VI in Miyazaki, Japan with V in Miyakonojo and IV in Hyuga and Hiji, Oita, Japan. Intensity II-III was felt in Kagoshima, Taketa, Kumamoto, Makurazaki, Oita and Beppu, Japan. JMA reported intensity V in Miyazaki; IV in Kumamoto, Oita, Kagoshima; and III in Hiroshima, Ehime, Fukuoka, Nagasaki, Japan. The M 5.5 foreshock was felt with intensity IV in Miyazaki and II-III in Kiyotake, Fukuoka and Iwakuni, Yamaguchi, Japan. No major damage occurred in either earthquake and a tsunami warning was not issued. The only other such event in the region of Kyushu within about 200 km of today's epicenter in the past three years was an M 6.3 on January 8, 2019. An M 7.0 hit the region on April 15, 2016 after a foreshock the day before of M 6.2. Further earthquakes in the area can be expected in the next several days." (May 9-10, 2019)

 

Forecast 147114 had expected this activity Kyushu was likely around October 2.  Like moderate earthquake in the Mariana Islands (M 5.4); Bonin Islands (M 5.0); Crete (M 5.0) and the South Sandwich Islands (M 4.6) this epicenter is near 103

 degrees from the M 7.6 in Michoacan, Mexico of September 19 and was probably promoted by energy from that source.

 

O:  1OCT2022 15:02:33  31.4N  131.4E Mw=5.7  EMSC   KYUSHU, JAPAN                

P:  2OCT2022 147114    29.0N  130.0E 4.0-5.4 ACBAA  Kyushu Japan               

 

The swarm in the Reykjanes Ridge began to dissipate today. Only three moderate earthquakes were located in this area today - of M 4.6, 4.6 and 4.4. These occurred near local solar noon and they may have been promoted by strong tidal stresses which maximize near this hour. This swarm began four days ago when the area was hit by the remnants of Hurricane Fiona and has continued more that 50 moderate quakes including two of M 5.7 and an M 5.9-6.0 yesterday.

Forecast 147238 had expected this activity in early October within about 100 km.

 

O: 01OCT2022 13:37:47  54.0N   35.1W mb=4.6  EMSC   REYKJANES RIDGE

O: 01OCT2022 13:41:41  54.1N   35.1W mb=4.6  EMSC   REYKJANES RIDGE

O:  1OCT2022 11:31:20  54.0N   35.1W mb=4.4  EMSC   REYKJANES RIDGE              

P:  2OCT2022 147238    53.0N   34.0W 4.0-5.4 AAAAA  North Mid-Atlantic Ridge   

 

Two earthquake of M 4.6 also occurred in the South Sandwich Islands region today. These also occurred near local solar midnight and noon and were likely

promoted by high tidal stresses. Forecasts 147046 and 147316 had expected enhanced seismicity in the South Sandwich Islands in late September or early

October within about 100 km of these epicenters. More moderate to large earthquakes are still likely in this area which is near 103 degrees from Michoacan, Mexico and where far-field aftershocks are likely at this time.

 

O:  1OCT2022 22:39:31  57.9S   25.6W mb=4.6  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 AAAAA  So. Sandwich Islands       

 

O:  1OCT2022 12:32:24  58.8S   23.1W mb=4.6  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  1OCT2022 147316    60.0S   23.0W 4.0-5.6 ABAAA  So. Sandwich 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:  2OCT2022 03:47:18  24.0N  122.6E mb=4.7  EMSC   TAIWAN REGION                

O:  2OCT2022 03:47:17  24.0N  122.5E ML=4.3  TAI    Hualien, Taiwan              

P: 28SEP2022 146870    24.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

CWB reported this earthquake was felt with intensity I in Hualien, Nantou and Taitung Counties, Taiwan.

 

INDONESIA AND PHILIPPINES

 

O:  1OCT2022 08:02:00   0.5N  126.6E ML=4.2  EMSC   MOLUCCA SEA                  

P:  8OCT2022 147055     2.0N  126.0E 4.0-5.4 CBAAA  Mindanao, Philippines      

 

O:  1OCT2022 11:47:38   0.5S  123.1E ML=4.4  EMSC   SULAWESI, INDONESIA          

P:  2OCT2022 147055     0.0N  123.0E 4.0-5.4 AAAAA  Mindanao, Philippines      

 

O: 01OCT2022 13:20:43   2.6N  128.7E ML=4.2  EMSC   HALMAHERA, INDONESIA

O:  2OCT2022 01:35:36   1.6N  128.3E mb=5.0  EMSC   HALMAHERA, INDONESIA         

P:  6OCT2022 147054     2.0N  128.0E 4.0-5.4 BAAAA  Halmahera                  

 

O:  1OCT2022 13:50:17   3.8S  101.9E mb=4.8  EMSC   SOUTHERN SUMATRA, INDONESIA  

P:  7OCT2022 147076     5.0S  102.0E 4.0-5.5 CBAAA  So. of Sumatera            

 

O:  1OCT2022 10:25:19   4.3S  144.0E mb=4.9  EMSC   NEW GUINEA, PAPUA NEW GUINEA 

P: 30SEP2022 146811     6.0S  147.0E 4.0-5.4 ABCAA  New Ireland                

 

O:  1OCT2022 18:46:52   5.8S  149.6E mb=4.5  EMSC   NEW BRITAIN REGION, P.N.G.   

P:  3OCT2022 147069     6.0S  148.0E 4.0-5.4 AABAA  New Ireland                

 

O:  1OCT2022 19:41:36   6.8S  129.9E mb=4.6  EMSC   BANDA SEA                    

P:  1OCT2022 147079     6.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

O: 01OCT2022 22:47:26   6.9S  106.2E ML=4.0  EMSC   JAVA, INDONESIA

O:  1OCT2022 18:39:07   6.9S  106.0E ML=4.2  EMSC   SUNDA STRAIT, INDONESIA      

P: 30SEP2022 146817     7.0S  106.0E 4.0-5.7 AAAAA  So. of Java                

 

O: 01OCT2022 15:56:25  17.0N  147.1E mb=4.8  EMSC   MARIANA ISLANDS REGION

O: 02OCT2022 02:14:45  17.0N  147.1E Mw=5.4  EMSC   MARIANA ISLANDS REGION

O: 01OCT2022 16:19:26  17.1N  147.2E mb=4.6  EMSC   MARIANA ISLANDS REGION

O:  1OCT2022 11:05:33  17.0N  147.1E mb=4.6  EMSC   MARIANA ISLANDS REGION       

P:  4OCT2022 147098    17.0N  146.0E 4.0-5.5 BAAAA  No. Marianas               

 

CENTRAL AND SOUTH AMERICA

 

O:  1OCT2022 16:39:30  10.7N   85.3W ML=4.2  EMSC   COSTA RICA                   

P:  5OCT2022 147052     9.0N   84.0W 3.5-5.1 BBBAA  Costa Rica                 

 

O:  1OCT2022 08:05:42  13.0N   91.3W mb=4.3  EMSC   OFF THE COAST OF GUATEMALA   

P:  3OCT2022 147088    14.0N   92.0W 3.5-5.2 AAAAA  Guatemala                  

 

O: 01OCT2022 16:36:54  15.1N   93.9W Mw=5.5  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 01OCT2022 18:54:34  14.9N   94.0W ML=4.2  EMSC   OFF COAST OF CHIAPAS, MEXICO

O:  1OCT2022 20:03:11  14.8N   94.1W ML=4.3  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P:  5OCT2022 147084    15.0N   95.0W 3.5-5.2 BAAAA  Chiapas, Mexico            

 

O:  1OCT2022 20:31:55  15.6N   96.5W ML=3.9  EMSC   OFFSHORE OAXACA, MEXICO      

P:  3OCT2022 147100    15.0N   96.0W 3.5-5.1 AAAAA  Oaxaca, Mexico             

 

O:  2OCT2022 03:26:04  18.0N   66.5W Md=3.1  EMSC   PUERTO RICO REGION           

P:  1OCT2022 147102    19.0N   66.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O:  1OCT2022 07:44:38  18.0N   67.0W Md=3.0  EMSC   PUERTO RICO                  

O: 01OCT2022 09:01:34  18.7N   66.9W Md=3.7  EMSC   PUERTO RICO REGION

P:  1OCT2022 147102    19.0N   66.0W 3.4-5.1 AAAAA  Puerto Rico                

P:  4OCT2022 147102    18.0N   67.0W 3.4-5.3 BAAAA  Puerto Rico                

 

O:  2OCT2022 01:54:44  18.0N  103.4W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P:  2OCT2022 147094    18.0N  103.0W 3.5-5.4 AAAAA  Michoacan, Mexico          

 

O:  1OCT2022 17:31:44  18.5N   69.1W mb=4.7  EMSC   DOMINICAN REPUBLIC           

O: 02OCT2022 04:39:06  19.1N   69.6W ML=3.1  EMSC   DOMINICAN REPUBLIC

P:  4OCT2022 147102    18.0N   69.0W 3.4-5.2 BAAAA  Puerto Rico                

 

O:  2OCT2022 00:16:23  19.7S   69.6W mb=4.2  EMSC   TARAPACA, CHILE              

P:  3OCT2022 147287    21.0S   69.0W 4.0-5.5 ABAAA  Coast No. Chile            

P: 28SEP2022 147024    20.0S   70.0W 4.0-5.8 BAAAA  So. Peru/Bolivia           

 

NEIC reported this earthquake of M 4.2  in Northern Chile was felt with intensity II-III in the area(s) of Northern Chile in Iquique, Tarapaca.

 

O:  1OCT2022 08:40:25  23.4S   66.8W mb=4.4  EMSC   JUJUY, ARGENTINA             

O:  2OCT2022 02:28:58  24.1S   66.8W ML=4.2  EMSC   JUJUY, ARGENTINA             

P: 28SEP2022 147021    24.0S   67.0W 4.0-5.6 BAAAA  Argentina                  

 

 

 

AFRICA AND EUROPE

 

O:  2OCT2022 04:04:05  34.3N   26.2E mb=5.1  EMSC   CRETE, GREECE                

P:  1OCT2022 147121    35.0N   25.0E 3.0-4.8 AAAAA  Aegean Sea                 

P: 29SEP2022 146888    34.0N   25.0E 3.0-4.9 BAAAA  Crete                      

 

O:  2OCT2022 05:44:02  37.2N    4.1W ML=3.6  EMSC   SPAIN                        

P: 26SEP2022 146893    37.0N    3.0W 3.5-5.2 CAAAA  Morocco/Spain              

 

O:  1OCT2022 09:27:52  39.6N    1.1W ML=2.1  EMSC   SPAIN                        

P:  1OCT2022 147144    39.0N    1.0W 3.5-5.3 AAAAA  Morocco/Spain              

 

SOUTHWEST PACIFIC

 

O:  1OCT2022 13:43:34  14.5S  166.9E mb=4.9  EMSC   VANUATU                      

P: 26SEP2022 147020    14.0S  167.0E 4.0-5.4 BAAAA  Vanuatu Islands            

 

O:  1OCT2022 23:41:28  15.0S  172.1W mb=4.9  EMSC   SAMOA ISLANDS REGION         

P: 28SEP2022 147010    15.0S  175.0W 4.0-5.6 BACAA  Samoa Islands              

 

O:  1OCT2022 19:35:24  24.9S  179.9E mb=4.5  EMSC   SOUTH OF FIJI ISLANDS        

P:  3OCT2022 147296    23.0S  179.0E 4.0-5.4 ABAAA  Tonga/Fiji                 

P: 24SEP2022 147031    25.0S  179.0E 4.0-5.5 CAAAA  Tonga/Fiji                 

 

OCEAN RIDGES

 

O: 01OCT2022 13:37:47  54.0N   35.1W mb=4.6  EMSC   REYKJANES RIDGE

O: 01OCT2022 13:41:41  54.1N   35.1W mb=4.6  EMSC   REYKJANES RIDGE

O:  1OCT2022 11:31:20  54.0N   35.1W mb=4.4  EMSC   REYKJANES RIDGE              

P:  2OCT2022 147238    53.0N   34.0W 4.0-5.4 AAAAA  North Mid-Atlantic Ridge   

 

O:  1OCT2022 22:39:31  57.9S   25.6W mb=4.6  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 AAAAA  So. Sandwich Islands       

 

O:  1OCT2022 12:32:24  58.8S   23.1W mb=4.6  EMSC   SOUTH SANDWICH ISLANDS REGION

P:  1OCT2022 147316    60.0S   23.0W 4.0-5.6 ABAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O:  1OCT2022 15:26:26  30.7S  178.8W mb=4.9  EMSC   KERMADEC ISLANDS, NEW ZEALAND

P: 27SEP2022 147036    30.0S  177.0W 4.0-5.6 BABAA  No. Kermadec Islands       

 

O:  1OCT2022 10:52:50  32.6S  178.3E ML=4.4  EMSC   SOUTH OF KERMADEC ISLANDS    

O:  1OCT2022 07:21:17  33.9S  179.3E mb=4.6  EMSC   SOUTH OF KERMADEC ISLANDS    

P:  8OCT2022 147308    34.0S  179.0E 4.0-5.7 CAAAA  So. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O:  1OCT2022 12:44:48  28.7N  140.5E Mw=5.0  EMSC   BONIN ISLANDS, JAPAN REGION  

P:  1OCT2022 147153    30.0N  142.0E 4.0-5.6 ABAAA  Off East Coast Honshu      

P:  2OCT2022 147109    27.0N  141.0E 4.0-5.8 ABAAA  Bonin Islands              

 

O:  1OCT2022 15:02:33  31.4N  131.4E Mw=5.7  EMSC   KYUSHU, JAPAN                

P:  2OCT2022 147114    29.0N  130.0E 4.0-5.4 ACBAA  Kyushu Japan               

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

 

O:  2OCT2022 06:20:27  35.7N  117.6W Ml=2.3  EMSC   SOUTHERN CALIFORNIA          

P:  2OCT2022 147169    35.8N  117.6W 2.5-4.6 AAAAA  So. California             

 

O:  1OCT2022 09:22:51  33.2N  115.5W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P:  4OCT2022 147162    32.4N  115.8W 2.5-4.4 BAAAA  So. California             

 

O:  1OCT2022 18:40:01  37.5N  121.9W Md=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P:  6OCT2022 147131    37.4N  121.8W 2.5-4.8 BAAAA  Central California         

P: 28SEP2022 146882    37.7N  121.9W 2.5-4.5 BAAAA  Central California         

 

O:  2OCT2022 03:04:53  38.5N  122.7W Md=2.3  EMSC   NORTHERN CALIFORNIA          

P:  1OCT2022 147133    38.5N  122.7W 2.5-4.7 AAAAA  Central California         

P: 30SEP2022 146883    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O:  1OCT2022 07:14:45  40.5N  121.6W Md=2.5  EMSC   LASSEN PEAK AREA, CALIFORNIA 

P: 29SEP2022 146949    40.2N  121.2W 2.5-4.7 AAAAA  Northern California        

 

NEIC reported this earthquake of M 2.5 in Lassen Peak, California was felt with intensity II-III in the area(s) of Lassen Peak, California in Red Bluff, Mount Shasta and South Lake Tahoe.

 

 

ALASKA

 

O:  1OCT2022 17:09:26  54.1N  166.9W ML=3.2  EMSC   FOX ISLANDS, ALEUTIAN ISLANDS

P:  7OCT2022 147234    52.5N  166.5W 3.5-5.1 CBAAA  Fox Islands, Aleutians     

 

O:  1OCT2022 10:43:42  54.5N  159.7W ml=3.4  EMSC   SOUTH OF ALASKA              

P: 29SEP2022 146985    54.7N  161.2W 3.5-5.3 AAAAA  Unimak Islands, Aleutians  

 

O:  1OCT2022 14:24:30  58.3N  133.5W ML=3.2  EMSC   SOUTHEASTERN ALASKA          

O: 01OCT2022 22:37:57  58.4N  133.6W ML=3.0  EMSC   SOUTHEASTERN ALASKA

P:  4OCT2022 147232    58.3N  133.5W 3.0-5.3 BAAAA  British Colombia           

 

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: 02OCT2022 04:52:08  31.7N  104.6W ML=2.3  EMSC   WESTERN TEXAS

O:  1OCT2022 12:49:21  31.7N  104.2W ML=2.9  EMSC   WESTERN TEXAS                

P:  4OCT2022 147158    31.7N  103.0W 2.0-3.9 BAAAA  SW U.S.A                   

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 BAAAA  SW U.S.A                   

 

O:  1OCT2022 20:39:19  44.7N  111.1W ML=2.4  EMSC   WESTERN MONTANA              

P:  3OCT2022 147223    44.6N  110.8W 2.0-3.9 AAAAA  Yellowstone/Wyoming        

 

O:  1OCT2022 22:18:12  44.7N  114.4W ML=2.4  EMSC   SOUTHERN IDAHO               

P:  1OCT2022 147196    44.4N  114.1W 2.0-4.3 AAAAA  Montana/Idaho              

P: 30SEP2022 146941    44.9N  113.4W 2.0-4.6 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O:  1OCT2022 08:36:48  35.1N   95.6W ML=2.3  EMSC   OKLAHOMA                     

P:  1OCT2022 147174    36.0N   97.0W 2.0-4.4 AABAA  Southern Plains            

 

O:  1OCT2022 12:30:27  36.7N   97.7W ML=3.0  EMSC   OKLAHOMA                     

P:  1OCT2022 147174    36.0N   97.0W 2.0-4.4 AAAAA  Southern Plains            

 

HAWAII

 

O: 01OCT2022 16:11:23  19.3N  155.4W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 01OCT2022 07:01:47  19.5N  155.6W ML=3.1  EMSC   ISLAND OF HAWAII, HAWAII

O:  1OCT2022 10:36:25  19.2N  155.5W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII     

P:  3OCT2022 147112    19.3N  155.1W 4.0-5.4 AAAAA  Hawaii area                

 

NEIC reported this earthquake of M 3.5 in Hawaii was felt with intensity II-III in the area(s) of Hawaii in Hilo and Naalehu.

 

MODERATELY STRONG QUAKE SHAKES NORTHERN SUMATRA

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 20, 2022

 

 

The strongest earthquakes in the world today were an M 6.0 in the Reykjanes Ridge, North Atlantic and an M 5.9-6.0 in northern Sumatra. The event in Sumatra was reported by NEIC to have been felt with intensity VII in Sibolga, Northern Sumatra and in Malaysia at Banting, Petaling, Kuala Lumput and Semenyih. An M 5.0 aftershock was felt with intensity IV in Rantauprapat, Northern Sumatra and possibly in Malaysia. BMG reported this earthquake was an M 6.0 felt with intensity VI in Tarutung, IV in Singkil, V in Spiahutar and III in Tapaktuan and Gunung Sitoli, Sumatra. The last earthquake of M>=5.8 within about 200 km of this epicenter was an M 6.1 on November 8, 2015 and prior to that an M 6.0 on May 19, 2008.  This activity in Sumatra near the geomagnetic equator occurred at the height of today's geomagnetic storm and were probably promoted by energy associated with this storm as noted in the previous issues of this summary:

 

"The geomagnetic field saw quiet conditions today. The AP level was  7. High latitudes also saw active conditions with AP 8. Active to stormy conditions in the geomagnetic storm in the next three days may help promote additional enhancement of seismicity at high latitudes and near the geomagnetic equator today and in the next several days. " (September 30, 2022)

 

Forecast 146802 had expected this earthquake was likely in late September within about 25 km of this epicenter. This activity is at 144-149 degrees from the earthquakes in the Loyalty Islands of M 7.0 of September 14, 2022 and from the M 7.6 in Michoacan, Mexico of September 19, 2022 and had been expected as far-field activity from Mexico in this summary as:

 

 

"Areas likely to see far-field seismic enhancement from this earthquake include:

Outer shadow zone edge (141-148 degrees): Mexico to Minahassa, Sea of Bengal, Australia, SE Indian Ridge, Java, Andaman Islands, " (September 19-20, 2022)

 

It was also expected as a far field aftershock of the M 7.0 in the Loyatlty  Islands of September 14, 2022 as:

 

"Node 5 (72 degrees)

Loyalty Islands to Sumatra, Kuril Islands, " (September 14, 2022)

 

O: 30SEP2022 19:54:30   2.0N   99.0E ML=4.6  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 20:01:59   2.0N   99.0E ML=4.1  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 19:28:43   2.1N   98.8E Mw=5.8  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 19:28:41   2.1N   98.9E Mw=6.0  BMG    NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 19:28:43   2.1N   98.9E Mw=5.9  ANSS   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 19:28:43   2.1N   98.8E Mw=5.8  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 20:37:42   2.1N   99.0E mb=5.0  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 21:03:16   2.1N   99.0E ML=4.1  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 19:50:39   2.2N   98.9E mb=5.0  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 22SEP2022 146802     2.0N   99.0E 4.0-5.5 CAAAA  So. Sumatera               

 

The earthquake of M 5.9-6.0 in the Reykjanes Ridge today is the strongest to date in the current series which has included two events of M 5.7 in the past four days in the region. It occurred at a high latitude near local solar midnight and was also probably promoted by effects from the geomagnetic storm (see above). The aftershock series in northern Sumatra ceased immediately after the M 5.9 in the Reykjanes Ridge. An M 5.0 in the Reykjanes aftershock series occurred within minutes of local solar midnight during the geomagnetic storm today. This sequenced had been noted in previous issues of this summary as:

 

"This is the strongest activity within about 200 km of this epicenter in the Reykjanes area since an M 6.8 on February 16, 1998. That was the only earthquake in this region with M>=5.7 in at least 30 years. Forecast 146979 had expected this activity was likely within about 25 km of this epicenter was likely around September 26. This activity is at 143 degrees from the M 7.0 in the Loyalty Islands of September 14, 2022 and at 101-105 degrees from the M 6.9 in Taiwan of September and the M 7.0 in Luzon, Philippines of July 27, 2022 and near the sixth node (60 degrees) from the M 7.6 in Michoacan Mexico of September 19 and was probably promoted by energy from those source." (September 26-27, 2022) This activity is located at 143-144 degrees from the M 7.0 in the Loyalty Islands of  September 14 and at 102 degrees from the M 6.9 in Taiwan of September 18 and was probably promoted by energy from that source." (September 28-29, 2022)

 

O: 01OCT2022 01:18:53  53.8N   35.5W Mw=6.0  ANSS   REYKJANES RIDGE

O: 30SEP2022 12:21:07  53.6N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 01OCT2022 01:18:53  53.8N   35.5W Mw=5.9  EMSC   REYKJANES RIDGE

O: 01OCT2022 04:58:04  53.8N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 01OCT2022 02:06:09  53.9N   35.3W Mw=5.0  EMSC   REYKJANES RIDGE

O: 30SEP2022 19:52:05  53.9N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 30SEP2022 12:50:09  54.1N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 30SEP2022 11:38:53  53.5N   35.3W mb=4.6  EMSC   REYKJANES RIDGE               

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 BAAAA  North Mid-Atlantic Ridge   

 

An earthquake of M 5.3 also occurred near the equator in the Central Atlantic north of Ascension Island today. This is near the location of a tropical storm forming in the area and may have been promoted by energy associated with that storm. Forecast 146803 had expected activity within about 100 km of this epicenter would be enhanced at the end of September.

 

O:  1OCT2022 05:12:39   1.4S   15.3W Mw=5.3  EMSC   NORTH OF ASCENSION ISLAND    

P: 24SEP2022 146803     1.0S   16.0W 4.0-5.8 CAAAA  Central Mid-Atlantic       

 

 

Two M-class solar flares occurred today - an M2.9 (#6230)  and an M1.3 (#6240) beginning about 16:11 UT and 1730 UT.

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

 

6230       1611   1622      1633   M2.9      (September 30, 2022)   2.2E-02  

6240       1730   1734      1745   M1.3      (September 30, 2022)   8.9E-03  

 

The strongest seismicity in the western hemisphere today occurred as an M 5.2-5.3 preceded by an M 3.9 foreshock in the region of El Salvador. The M 3.9 occurred in the area of El Salvador at the beginning of flare 6230 while a moderate shock of M 5.2 occurred later with the beginning of flare 6240. These two event were located two minutes after the reported start of these flares and were probably triggered by SFE from these flares. The mainshock of M 5.2 occurred within minutes of local solar noon, a time when SFE are most seismo-effective. Forecast 146843 had expected this activity was likely within about 10-50 km at the end of September.

 

O: 30SEP2022 17:32:38  12.3N   88.3W Mw=5.2  EMSC   OFFSHORE EL SALVADOR

O: 30SEP2022 16:13:58  13.0N   88.8W ML=3.9  EMSC   OFFSHORE EL SALVADOR

O: 30SEP2022 12:21:30  12.1N   88.0W ML=4.0  EMSC   NEAR COAST OF NICARAGUA      

P: 26SEP2022 146843    12.0N   88.0W 3.5-5.6 BAAAA  Nicaragua                  

 

The strongest earthquake in the U.S. or Canada today was an M 4.2 in Southern Alaska. NEIC reported this earthquake of M 4.0 in Southern Alaska was felt with intensity II-III in the area(s) of Southern Alaska in Kenai, Ninilchik, Anchor Point, Soldotna, Sterling, Homer, Anchorage. This is not an unusual event in this region. The last event within about 100 km of this epicenter with M>=4.2 was an M 4.7 on July 12, 2022. Forecasts 146989 had expected today's event was likely in this area at the end of September.

 

O: 30SEP2022 23:24:08  61.1N  152.1W Mw=4.2  EMSC   SOUTHERN ALASKA              

P: 26SEP2022 146989    60.5N  151.5W 3.2-5.1 BAAAA  Central Alaska             

P: 26SEP2022 146989    61.3N  150.9W 3.2-5.1 BAAAA  Central 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: 30SEP2022 07:57:55  41.9N   79.0E mb=4.1  EMSC   KYRGYZSTAN                   

P: 23SEP2022 146901    39.0N   78.0E 3.8-5.2 CCAAA  Northern India             

 

O:  1OCT2022 04:08:20  52.5N  143.5E mb=4.1  EMSC   SAKHALIN, RUSSIA             

P: 22SEP2022 146982    54.0N  143.0E 4.0-5.4 CCAAA  Sakhalin                   

P: 30SEP2022 146960    49.0N  143.0E 3.5-5.6 ACAAA  So. Kurils                 

 

O: 30SEP2022 19:50:15  23.3N  121.3E ML=4.3  EMSC   TAIWAN

O: 30SEP2022 14:37:20  22.9N  121.4E mb=4.8  EMSC   TAIWAN REGION                

O: 30SEP2022 14:37:20  22.9N  121.3E ML=4.8  TAI    Hualien, Taiwan              

P: 28SEP2022 146870    24.0N  122.0E 4.0-5.4 AAAAA  Taiwan                     

 

CWB reported this earthquake was felt with intensity IV in Taitung, III in Hualien, II in Kaohsiung and I in Nantou, Yunlin, Chiayi and Tainan Counties, Taiwan.

 

INDONESIA AND PHILIPPINES

 

O: 30SEP2022 19:54:30   2.0N   99.0E ML=4.6  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 20:01:59   2.0N   99.0E ML=4.1  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 19:28:43   2.1N   98.8E Mw=5.8  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 20:37:42   2.1N   99.0E mb=5.0  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 21:03:16   2.1N   99.0E ML=4.1  EMSC   NORTHERN SUMATRA, INDONESIA

O: 30SEP2022 19:50:39   2.2N   98.9E mb=5.0  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 22SEP2022 146802     2.0N   99.0E 4.0-5.5 CAAAA  So. Sumatera                

 

O: 30SEP2022 07:22:30   0.1N   96.7E mb=4.3  EMSC   NIAS REGION, INDONESIA       

P: 23SEP2022 146801     3.0N   94.0E 4.0-5.4 CCCAA  Nicobar Islands            

 

O: 30SEP2022 21:44:24   2.1N  129.1E mb=4.9  EMSC   HALMAHERA, INDONESIA          

P: 28SEP2022 146798     2.0N  128.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 30SEP2022 14:30:23   2.5S  121.2E ML=4.5  EMSC   SULAWESI, INDONESIA          

P: 29SEP2022 146792     0.0N  122.0E 4.0-5.5 ACAAA  Celebes Sea                

 

O: 30SEP2022 09:22:20   6.2S  130.7E ML=4.5  EMSC   BANDA SEA                    

P: 27SEP2022 146822     7.0S  131.0E 4.0-5.4 BAAAA  West Irian, PNG            

 

O: 30SEP2022 12:57:35   6.5S  104.9E ML=4.5  EMSC   SUNDA STRAIT, INDONESIA      

P: 30SEP2022 146817     7.0S  106.0E 4.0-5.7 AAAAA  So. of Java                

 

O:  1OCT2022 04:24:38   7.0S  129.4E ML=4.6  EMSC   BANDA SEA                    

O: 30SEP2022 15:48:19   6.4S  130.3E ML=4.5  EMSC   BANDA SEA

P: 27SEP2022 146822     7.0S  131.0E 4.0-5.4 BAAAA  West Irian, PNG            

 

O: 30SEP2022 14:31:11   9.4N  126.5E mb=4.3  EMSC   MINDANAO, PHILIPPINES        

P: 30SEP2022 146794     9.0N  126.0E 4.0-5.6 AAAAA  Central Philippines        

 

O: 30SEP2022 07:58:53   9.5S  119.6E ML=4.4  EMSC   SUMBA REGION, INDONESIA      

P: 30SEP2022 146806     8.0S  121.0E 4.0-5.5 ABBAA  Flores Island area         

 

O:  1OCT2022 03:54:56  17.0N  147.1E Mw=5.4  EMSC   MARIANA ISLANDS REGION       

O: 01OCT2022 04:25:51  17.1N  147.0E mb=4.7  EMSC   MARIANA ISLANDS REGION

P: 25SEP2022 146845    17.0N  147.0E 4.0-5.5 CAAAA  No. Marianas               

 

CENTRAL AND SOUTH AMERICA

 

O:  1OCT2022 06:23:53   7.9S   74.4W mb=4.7  EMSC   NORTHERN PERU                

P: 27SEP2022 146813     6.0S   79.0W 4.0-5.6 BBCAA  No. Peru                   

 

NEIC reported this earthquake of M 4.7 in Peru was felt with intensity II-III in the area(s) of Peru in Pucallpa.

 

O: 30SEP2022 17:32:38  12.3N   88.3W Mw=5.2  EMSC   OFFSHORE EL SALVADOR

O: 30SEP2022 16:13:58  13.0N   88.8W ML=3.9  EMSC   OFFSHORE EL SALVADOR

O: 30SEP2022 12:21:30  12.1N   88.0W ML=4.0  EMSC   NEAR COAST OF NICARAGUA      

P: 26SEP2022 146843    12.0N   88.0W 3.5-5.6 BAAAA  Nicaragua                  

 

O: 30SEP2022 18:18:09  15.3N   94.3W mb=4.5  EMSC   OFFSHORE CHIAPAS, MEXICO

O: 30SEP2022 20:39:41  15.1N   94.3W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO 

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 BAAAA  Chiapas, Mexico            

 

O: 30SEP2022 12:05:36  15.8N   88.4W mb=4.1  EMSC   GUATEMALA                    

P: 29SEP2022 146828    14.0N   89.0W 3.5-5.2 ABAAA  Coast of Central America   

 

NEIC reported this earthquake of M 4.1 in Honduras was felt with intensity II-III in the area(s) of Honduras in Armenta and Puertes, Cortes.

 

O: 30SEP2022 08:56:22  16.3N   98.1W ML=4.0  EMSC   OAXACA, MEXICO               

P: 28SEP2022 146847    15.0N   98.0W 3.5-5.3 ABAAA  Oaxaca, Mexico             

 

O: 30SEP2022 12:09:29  16.3S   75.5W mb=4.5  EMSC   OFF COAST OF SOUTHERN PERU   

P: 27SEP2022 147014    18.0S   72.0W 4.0-5.4 BBCAA  So. Peru/Bolivia           

 

O: 30SEP2022 16:49:06  16.9N   94.1W ML=4.2  EMSC   OAXACA, MEXICO               

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 BAAAA  Chiapas, Mexico            

 

O: 30SEP2022 10:55:18  17.7N   63.9W Md=3.4  EMSC   ST. MARTIN REGION, LEEWARD ISL

P: 28SEP2022 146835    18.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

 

O:  1OCT2022 05:27:57  17.8N   61.6W Mw=4.2  EMSC   ANTIGUA AND BARBUDA REGION   

P: 26SEP2022 146834    17.0N   60.0W 3.0-5.2 BABAA  Leeward Islands            

 

O: 30SEP2022 12:35:38  17.9N   66.5W Md=3.4  EMSC   PUERTO RICO REGION

O: 30SEP2022 07:23:00  18.0N   66.5W Md=3.2  EMSC   PUERTO RICO REGION

O: 30SEP2022 07:55:13  17.9N   66.5W Md=3.2  EMSC   PUERTO RICO REGION           

P: 28SEP2022 146835    18.0N   65.0W 3.0-5.1 AABAA  Leeward Islands            

P: 29SEP2022 146851    18.0N   68.0W 3.4-5.1 AABAA  Puerto Rico                

 

O: 30SEP2022 07:26:37  18.5N   74.1W ML=3.4  EMSC   HAITI REGION                  

P: 25SEP2022 146852    19.0N   74.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 30SEP2022 12:56:02  18.4N  103.9W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

O: 30SEP2022 09:19:33  18.5N  103.2W ML=3.6  EMSC   MICHOACAN, MEXICO            

P: 28SEP2022 146841    18.0N  104.0W 3.5-5.5 AAAAA  Michoacan, Mexico          

 

O: 30SEP2022 07:36:34  19.1N   64.7W Md=3.4  EMSC   VIRGIN ISLANDS REGION

O: 30SEP2022 08:23:45  18.9N   64.4W Md=3.3  EMSC   VIRGIN ISLANDS REGION        

P: 28SEP2022 146835    18.0N   65.0W 3.0-5.1 AAAAA  Leeward Islands            

 

O:  1OCT2022 02:11:02  19.6N   70.0W ML=3.0  EMSC   DOMINICAN REPUBLIC           

P: 26SEP2022 146856    20.0N   71.0W 3.0-4.8 BAAAA  Bahamas/No. Caribbean      

 

O:  1OCT2022 05:33:38  20.9S   69.1W mb=4.1  EMSC   TARAPACA, CHILE              

P: 28SEP2022 147024    20.0S   70.0W 4.0-5.8 BAAAA  So. Peru/Bolivia           

 

O: 30SEP2022 07:35:33  22.6S   68.5W mb=4.0  EMSC   ANTOFAGASTA, CHILE

O: 30SEP2022 19:02:26  21.9S   68.7W mb=4.0  EMSC   ANTOFAGASTA, CHILE           

P: 24SEP2022 147024    21.0S   69.0W 4.0-5.4 CAAAA  Coast No. Chile            

 

O: 30SEP2022 09:41:54  27.6N  111.7W ML=3.5  EMSC   GULF OF CALIFORNIA

O: 30SEP2022 18:35:58  27.0N  111.4W ML=4.0  EMSC   GULF OF CALIFORNIA           

P: 30SEP2022 146858    24.0N  109.0W 3.5-5.0 ACBAA  Gulf of California         

 

O: 30SEP2022 15:40:05  27.9S   68.3W ML=4.5  EMSC   CATAMARCA, ARGENTINA         

P: 27SEP2022 147022    28.0S   67.0W 4.0-5.6 BAAAA  Argentina                   

 

O: 30SEP2022 07:41:12  32.1S   71.8W Mw=4.3  EMSC   OFFSHORE COQUIMBO, CHILE     

P: 29SEP2022 147033    34.0S   73.0W 4.0-5.8 ABAAA  Central Chile              

 

AFRICA AND EUROPE

 

O:  1OCT2022 01:45:07  39.6N    1.1W ML=3.8  EMSC   SPAIN                         

P: 24SEP2022 146927    39.0N    0.0E 3.0-4.6 CAAAA  Western Mediterranean      

 

O:  1OCT2022 05:41:14  39.7N   40.6E mb=4.3  EMSC   EASTERN TURKEY               

P: 25SEP2022 146948    41.0N   36.0E 3.5-4.9 CBCAA  No. Turkey/Black Sea       

 

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

 

SOUTHWEST PACIFIC

 

 

O: 30SEP2022 15:45:50  14.2S  167.4E mb=4.6  EMSC   VANUATU                      

P: 26SEP2022 147020    14.0S  167.0E 4.0-5.4 BAAAA  Vanuatu Islands            

 

O: 30SEP2022 11:26:51  18.6S  175.6W mb=4.6  EMSC   TONGA                        

P: 30SEP2022 147017    19.0S  177.0W 4.0-5.4 AABAA  Tonga Islands              

 

O: 30SEP2022 11:38:33  25.7S  175.4W mb=5.0  EMSC   SOUTH OF TONGA                

P: 20SEP2022 146770    27.0S  177.0W 4.0-5.4 CBBAA  Tonga Islands              

 

O: 30SEP2022 09:24:37  22.8S  172.4E mb=4.8  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 27SEP2022 147025    21.0S  171.0E 4.0-5.4 CBBAA  Loyalty Islands            

 

OCEAN RIDGES

 

O:  1OCT2022 05:12:39   1.4S   15.3W Mw=5.3  EMSC   NORTH OF ASCENSION ISLAND    

P: 24SEP2022 146803     1.0S   16.0W 4.0-5.8 CAAAA  Central Mid-Atlantic       

 

O: 30SEP2022 12:21:07  53.6N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 01OCT2022 01:18:53  53.8N   35.5W Mw=5.9  EMSC   REYKJANES RIDGE

O: 01OCT2022 04:58:04  53.8N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 01OCT2022 02:06:09  53.9N   35.3W Mw=5.0  EMSC   REYKJANES RIDGE

O: 30SEP2022 19:52:05  53.9N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 30SEP2022 12:50:09  54.1N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 30SEP2022 11:38:53  53.5N   35.3W mb=4.6  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 BAAAA  North Mid-Atlantic Ridge   

 

 

ZEALANDIA AND AUSTRALIA REGION

 

 

O:  1OCT2022 06:18:53  30.8S  179.7W mb=4.3  EMSC   KERMADEC ISLANDS REGION      

P: 25SEP2022 147036    30.0S  179.0W 4.0-5.6 CAAAA  No. Kermadec Islands       

P: 27SEP2022 147036    30.0S  177.0W 4.0-5.6 BACAA  No. 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: 30SEP2022 11:48:33  33.5N  116.5W Ml=2.3  EMSC   SOUTHERN CALIFORNIA

O: 30SEP2022 11:50:11  33.5N  116.5W Ml=3.4  EMSC   SOUTHERN CALIFORNIA          

P: 27SEP2022 146912    33.9N  116.9W 2.5-4.6 BAAAA  So. California             

 

NEIC reported this earthquake of M 3.4 in Southern California was felt with intensity II-III in the area(s) of Southern California in Mountain Center, Palm Desert, Indian Wells, La Quinta, Rancho Mirage, Palm Desert and Indio.

 

O:  1OCT2022 04:17:27  35.7N  117.5W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 29SEP2022 146915    35.1N  117.0W 2.5-4.8 AAAAA  So. California             

 

O:  1OCT2022 04:41:23  37.3N  118.3W Md=2.3  EMSC   CENTRAL CALIFORNIA           

P: 30SEP2022 146876    37.5N  118.6W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 30SEP2022 10:38:41  38.8N  122.8W Md=2.2  EMSC   NORTHERN CALIFORNIA           

P: 30SEP2022 146883    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

 

ALASKA

 

O: 30SEP2022 11:33:49  55.0N  156.5W ML=3.2  EMSC   SOUTH OF ALASKA              

P: 27SEP2022 146969    54.7N  156.9W 3.5-4.9 BAAAA  Alaska Peninsula            

 

O: 30SEP2022 23:24:08  61.1N  152.1W Mw=4.2  EMSC   SOUTHERN ALASKA              

P: 26SEP2022 146989    60.5N  151.5W 3.2-5.1 BAAAA  Central Alaska             

P: 26SEP2022 146989    61.3N  150.9W 3.2-5.1 BAAAA  Central Alaska             

 

O:  1OCT2022 06:12:13  63.0N  150.8W ML=3.4  EMSC   CENTRAL ALASKA               

P: 30SEP2022 146991    62.6N  151.4W 3.2-5.1 AAAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O:  1OCT2022 02:02:33  48.1N  124.6W Ml=3.0  EMSC   OLYMPIC PENINSULA, WASHINGTON

P: 30SEP2022 146965    49.0N  123.0W 2.0-3.9 AAAAA  Washington state, U.S.     

 

NEIC reported this earthquake of M 3.0 in Olympic Peninsula, Washington State was felt with intensity II-III in the area(s) of Olympic Peninsula, Washington Staten Clallam Bay, Foks, Pot Angeles, Sequim, Port Twonsend, Seabeck and Shelton.

 

ROCKY MOUNTAINS REGION

 

O: 30SEP2022 16:27:55  31.7N  104.4W ML=2.4  EMSC   WESTERN TEXAS

O: 30SEP2022 09:05:52  31.7N  104.5W ML=3.2  EMSC   WESTERN TEXAS                 

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 BAAAA  SW U.S.A                   

 

O: 30SEP2022 08:04:06  32.4N  101.1W mb=2.7  EMSC   WESTERN TEXAS

O: 30SEP2022 13:16:05  32.4N  101.1W ML=2.4  EMSC   WESTERN TEXAS

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 BACAA  SW U.S.A                   

 

O:  1OCT2022 02:18:39  44.2N  115.1W ML=2.5  EMSC   SOUTHERN IDAHO               

P: 30SEP2022 146940    44.5N  116.2W 2.0-4.1 AAAAA  Montana/Idaho              

 

O: 30SEP2022 10:36:30  44.8N  110.8W Ml=2.0  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 26SEP2022 146967    44.6N  110.8W 2.0-3.9 BAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O:  1OCT2022 01:07:19  36.0N   97.9W ML=2.3  EMSC   OKLAHOMA                     

P: 28SEP2022 146922    37.0N   98.0W 2.0-4.1 BAAAA  Southern Plains            

 

O:  1OCT2022 04:27:49  36.1N   89.8W Md=2.2  EMSC   SOUTHEASTERN MISSOURI        

P: 27SEP2022 146896    36.0N   89.0W 2.0-3.9 BAAAA  New Madrid area            

 

HAWAII

 

O: 30SEP2022 11:05:50  19.3N  155.4W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII     

P: 28SEP2022 146833    18.8N  155.2W 3.0-4.5 AAAAA  Hawaii                     

 

MODERATE QUAKES IN MYANMAR AND SOUTHEASTERN ALASKA

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 29, 2022

 

A moderate earthquake of M 5.6 was widely felt in Myanmar today. It was reported by NEIC to have been felt with maximum intensity IV in Myanmar at Mawlaik, Mandalay, in Idia at Namipur and Assam with IV and with lesser intensity in Bangladesh at Uttar Dhurung, Chattagam, Fatekharkul, Baraghop and Silhat. This is the strongest earthquake in Myanmar since M 5.9 in Myanmar on July 21, 2022 about 500 km southeast of today's epicenter. The last earthquake within about 250 km of this epicenter with equal or larger magnitude than today's was an M 6.2 southwest of this on November 25, 2021. At the time this summary noted in this regard:

 

 

"The strongest earthquake in the world today was an M 6.2 on the Myanmar-India border. NEIC reported it was felt with maximum intensity VIII in North Vanlaiphai, India; VII in Rangamali, Bangladesh and Champhal, Mizoram, India and VI in Lunglei and Serchhip, and V in Alzaei and Mamit, Mizoram, India and in Bangladesh at Ranguna and Bandarban with IV in Saiha, Mizorm, India. The press reported light to moderate regional damage with this earthquake.  This is the strongest earthquake within about 250 km of this epicenter since an M 6.9 on April 13, 2015 and an M 6.8 on November 11, 2012. In the past 30 years similar earthquakes also hit the region on June 15, 1992 and January 5, 1991." (November 25-26, 2021)

 

Forecast 146863 had expected enhanced seismicity in this area of Myanmar was likely at the end of September.

 

O: 30SEP2022 02:23:15  24.8N   94.9E mb=4.6  EMSC   MYANMAR-INDIA BORDER REGION

O: 29SEP2022 22:22:37  23.1N   95.0E Mw=5.6  EMSC   MYANMAR                      

P: 30SEP2022 146863    20.0N   96.0E 4.0-5.4 ACAAA  Myanmar                     

 

The strongest earthquake in the world today was an M 5.8 in the Loyalty Islands of the southwest Pacific. It was not reported felt in this remote area. This appears to be an aftershock of the M 7.0 about 200 km northwest of this epicenter in the Loyalty Islands of September 14, 2022. Forecast 147025 had expected today's activity was likely at the end of September. This activity and that in the Reykjanes Ridge of the North Atlantic are separated by 143 degrees and may have

helped enhance each other.

 

O: 29SEP2022 22:59:01  22.9S  172.3E Mw=5.8  EMSC   SOUTHEAST OF LOYALTY ISLANDS

P: 24SEP2022 147025    22.0S  171.0E 4.0-5.4 BAAAA  Loyalty Islands            

P: 27SEP2022 147025    21.0S  171.0E 4.0-5.4 ABAAA  Loyalty Islands            

 

The strongest earthquake in the U.S. or Canada today was an M 5.1-5.3 in Southeastern Alaska. NEIC reported it was felt with intensity II-III in Alaska at Yakutat, Juneau, Anchorage, and possibly Fairbanks. This is the strongest earthquake within about 200 km of this epicenter in southeastern Alaska since an M 5.9 on July 25, 2014. An earthquake of M 5.1-5.2 occurred in the area on January 8, 2022.  Today's earthquake occurred near local solar noon at a longitude where tidal stresses were maximized during the new moon of September 25 as noted in previous issues of this summary:

 

 

"The new moon arrived on September 25, 2022 at 21:54 UT. Longitudes which were at local solar noon at this time are located near 150W while those at local solar midnight are near 30E. These include areas of Southern Alaska and western U.S. and Canada in the west and eastern Europe including Greece and Turkey in the east. These areas may see significant increases in seismicity during the next week." (September 23-28, 2022)

 

Forecast 146987 had expected a moderate earthquake in this region was likely at the end of September 2022. This activity is at the forth node (90 degrees) from the Loyalty Islands M 7.0 of September 14, 2022 and may have been promoted by energy from that source.

 

 

O: 29SEP2022 23:08:10  60.2N  141.3W Mw=5.0  EMSC   SOUTHERN ALASKA              

O: 29SEP2022 23:08:11  60.2N  141.3W MB=5.3  ECAN of Burwash Landing, YT  

P: 24SEP2022 146987    61.3N  140.1W 3.2-5.6 BBAAA  Central Alaska             

P: 28SEP2022 146987    60.0N  137.0W 3.2-5.6 AABAA  Central Alaska             

 

The strong swarm in the Reykjanes Ridge of the North Atlantic continued for the third day today. The maximum event in the area today was an M 5.7, the strongest to date in the current activity. This summary noted this swarm in the previous issue as:

 

"The strong swarm in the Reykjanes Ridge south of Iceland also continued today with more than 20 new events of M>=4 included three of M 5.1. This series began September 26 and included an M 5.7 when Hurricane Fiona, the strongest ocean storm in this region in decades,  passed over this epicenter. Forecast  146979 had expected this activity was likely around September 26." (September 28-29, 2022)

 

O: 29SEP2022 07:50:13  53.5N   35.5W mb=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 12:16:43  53.6N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 15:11:01  53.7N   35.7W mb=4.8  EMSC   REYKJANES RIDGE

O: 29SEP2022 20:47:03  53.7N   35.2W ML=4.4  EMSC   REYKJANES RIDGE

O: 29SEP2022 15:32:31  53.8N   35.2W Mw=5.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 20:23:50  53.8N   35.2W Mw=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 09:32:28  53.9N   35.3W Mw=4.9  EMSC   REYKJANES RIDGE

O: 29SEP2022 09:55:58  53.9N   35.2W mb=5.1  EMSC   REYKJANES RIDGE

O: 29SEP2022 12:30:04  53.9N   35.2W mb=4.5  EMSC   REYKJANES RIDGE

O: 29SEP2022 22:18:52  53.9N   35.2W mb=5.0  EMSC   REYKJANES RIDGE

O: 29SEP2022 22:18:52  53.9N   35.2W mb=5.0  EMSC   REYKJANES RIDGE

O: 30SEP2022 03:22:17  53.9N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 29SEP2022 08:14:51  53.3N   35.5W mb=4.7  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 BAAAA  North Mid-Atlantic Ridge   

 

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: 30SEP2022 02:23:15  24.8N   94.9E mb=4.6  EMSC   MYANMAR-INDIA BORDER REGION

O: 29SEP2022 22:22:37  23.1N   95.0E Mw=5.6  EMSC   MYANMAR                       

P: 30SEP2022 146863    20.0N   96.0E 4.0-5.4 ACAAA  Myanmar                    

 

O: 29SEP2022 10:48:11  41.6N   78.2E mb=4.6  EMSC   KYRGYZSTAN                   

P: 23SEP2022 146901    39.0N   78.0E 3.8-5.2 CBAAA  Northern India              

 

INDONESIA AND PHILIPPINES

 

O: 29SEP2022 11:34:43   2.4S  139.9E mb=5.4  EMSC   NEAR N COAST OF PAPUA, INDONES

P: 27SEP2022 146815     4.0S  140.0E 4.0-5.4 ABAAA  Papua New Guinea           

 

O: 29SEP2022 11:12:32   2.5N  128.9E ML=4.2  EMSC   HALMAHERA, INDONESIA

O: 29SEP2022 15:14:39   2.7N  128.5E mb=4.6  EMSC   HALMAHERA, INDONESIA         

P: 28SEP2022 146798     2.0N  128.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 29SEP2022 20:45:54   2.7S  128.0E ML=4.3  EMSC   CERAM SEA, INDONESIA         

P: 29SEP2022 146804     4.0S  128.0E 4.0-5.5 ABAAA  Ceram area                 

 

O: 30SEP2022 03:43:10   3.7S  144.3E mb=5.0  EMSC   NEAR N COAST OF NEW GUINEA, PN

P: 27SEP2022 146815     4.0S  140.0E 4.0-5.4 BACAA  Papua New Guinea            

 

O: 29SEP2022 12:56:33   5.3S  102.9E ML=4.6  EMSC   SOUTHERN SUMATRA, INDONESIA  

P: 22SEP2022 146818     3.0S  103.0E 4.0-5.4 CCAAA  So. of Sumatera            

 

O: 30SEP2022 00:55:25   5.6S  131.1E ML=4.0  EMSC   BANDA SEA                    

P: 27SEP2022 146822     7.0S  131.0E 4.0-5.4 BBAAA  West Irian, PNG            

 

O: 30SEP2022 02:59:02   9.5N  126.8E mb=4.8  EMSC   MINDANAO, PHILIPPINES        

P: 30SEP2022 146794     9.0N  126.0E 4.0-5.6 AAAAA  Central Philippines        

 

 

CENTRAL AND SOUTH AMERICA

 

O: 29SEP2022 23:02:42   0.2N   77.3W mb=4.9  EMSC   COLOMBIA-ECUADOR BORDER REGION

P: 24SEP2022 146805     1.0S   78.0W 4.0-5.6 BBAAA  Ecuador                    

 

O: 29SEP2022 08:41:19   5.0N   82.7W mb=4.3  EMSC   SOUTH OF PANAMA               

O: 29SEP2022 15:03:35   5.9N   84.4W mb=4.6  EMSC   OFF COAST OF CENTRAL AMERICA 

P: 29SEP2022 146796     8.0N   82.0W 3.5-5.2 ACCAA  Costa Rica                 

 

O: 30SEP2022 05:42:11   7.1S   79.5W ML=4.0  EMSC   NEAR COAST OF NORTHERN PERU  

P: 27SEP2022 146813     6.0S   79.0W 4.0-5.6 BBAAA  No. Peru                   

P: 28SEP2022 146813     9.0S   80.0W 4.0-5.6 ABAAA  No. Peru                   

 

O: 29SEP2022 12:21:41  15.4N   94.7W ML=4.2  EMSC   OFFSHORE OAXACA, MEXICO      

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 29SEP2022 14:21:17  16.0N   93.8W ML=4.4  EMSC   CHIAPAS, MEXICO              

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 29SEP2022 23:59:48  16.7S   73.0W ML=4.0  EMSC   NEAR COAST OF SOUTHERN PERU  

P: 27SEP2022 147014    18.0S   72.0W 4.0-5.4 ABAAA  So. Peru/Bolivia           

 

O: 29SEP2022 15:52:04  18.0N   93.5W ML=4.0  EMSC   TABASCO, MEXICO              

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 ABAAA  Chiapas, Mexico            

 

O: 29SEP2022 09:51:34  18.5N  103.3W ML=4.3  EMSC   MICHOACAN, MEXICO

O: 29SEP2022 15:35:10  19.7N  103.5W ML=4.1  EMSC   JALISCO, MEXICO

O: 29SEP2022 11:31:26  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 28SEP2022 146841    18.0N  104.0W 3.5-5.5 AAAAA  Michoacan, Mexico          

 

O: 30SEP2022 05:33:48  19.1N   64.7W ML=3.2  EMSC   VIRGIN ISLANDS REGION        

O: 30SEP2022 01:33:04  19.1N   64.5W Md=3.4  EMSC   VIRGIN ISLANDS REGION

P: 28SEP2022 146835    18.0N   65.0W 3.0-5.1 ABAAA  Leeward Islands            

 

O: 29SEP2022 08:36:52  27.1N  111.9W ML=3.9  EMSC   GULF OF CALIFORNIA           

P: 30SEP2022 146858    24.0N  109.0W 3.5-5.0 ACBAA  Gulf of California         

 

O: 29SEP2022 15:09:49  28.9S   69.9W ML=4.0  EMSC   ATACAMA, CHILE               

P: 27SEP2022 147023    29.0S   70.0W 4.0-5.6 AAAAA  Coast Central Chile        

 

O: 30SEP2022 06:15:46  45.8S   76.2W Mw=5.3  EMSC   OFF COAST OF AISEN, CHILE    

 

 

AFRICA AND EUROPE

 

O: 29SEP2022 13:03:31  35.4N   23.0E ML=3.8  EMSC   CRETE, GREECE                

P: 29SEP2022 146888    34.0N   25.0E 3.0-4.9 ABBAA  Crete                      

 

O: 29SEP2022 09:14:45  37.2N    4.1W ML=3.9  EMSC   SPAIN                        

P: 26SEP2022 146893    37.0N    3.0W 3.5-5.2 BAAAA  Morocco/Spain              

 

O: 29SEP2022 21:49:02  39.6N   40.5E Mw=4.3  EMSC   EASTERN TURKEY               

P: 25SEP2022 146948    41.0N   36.0E 3.5-4.9 BBCAA  No. Turkey/Black Sea       

 

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

 

SOUTHWEST PACIFIC

 

O: 30SEP2022 05:46:09  17.7S  179.8W mb=4.5  EMSC   FIJI REGION                  

P: 30SEP2022 147017    18.0S  180.0W 4.0-5.6 AAAAA  Tonga Islands              

 

O: 30SEP2022 02:26:23  25.2S  176.5W mb=4.5  EMSC   SOUTH OF FIJI ISLANDS        

P: 20SEP2022 146770    27.0S  177.0W 4.0-5.4 CCAAA  Tonga Islands              

 

O: 29SEP2022 22:59:01  22.9S  172.3E Mw=5.8  EMSC   SOUTHEAST OF LOYALTY ISLANDS

P: 24SEP2022 147025    22.0S  171.0E 4.0-5.4 BAAAA  Loyalty Islands            

P: 27SEP2022 147025    21.0S  171.0E 4.0-5.4 ABAAA  Loyalty Islands            

 

OCEAN RIDGES

 

O: 29SEP2022 07:50:13  53.5N   35.5W mb=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 12:16:43  53.6N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 15:11:01  53.7N   35.7W mb=4.8  EMSC   REYKJANES RIDGE

O: 29SEP2022 20:47:03  53.7N   35.2W ML=4.4  EMSC   REYKJANES RIDGE

O: 29SEP2022 15:32:31  53.8N   35.2W Mw=5.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 20:23:50  53.8N   35.2W Mw=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 09:32:28  53.9N   35.3W Mw=4.9  EMSC   REYKJANES RIDGE

O: 29SEP2022 09:55:58  53.9N   35.2W mb=5.1  EMSC   REYKJANES RIDGE

O: 29SEP2022 12:30:04  53.9N   35.2W mb=4.5  EMSC   REYKJANES RIDGE

O: 29SEP2022 22:18:52  53.9N   35.2W mb=5.0  EMSC   REYKJANES RIDGE

O: 29SEP2022 22:18:52  53.9N   35.2W mb=5.0  EMSC   REYKJANES RIDGE

O: 30SEP2022 03:22:17  53.9N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 29SEP2022 08:14:51  53.3N   35.5W mb=4.7  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 BAAAA  North Mid-Atlantic Ridge   

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 29SEP2022 14:18:08  31.1S  179.8E ML=4.6  EMSC   KERMADEC ISLANDS REGION      

O: 29SEP2022 22:25:56  31.3S  179.4E ML=4.1  EMSC   KERMADEC ISLANDS REGION      

O: 30SEP2022 06:37:34  32.0S  179.8W Mw=5.1  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 25SEP2022 147036    30.0S  179.0W 4.0-5.6 BBAAA  No. Kermadec Islands       

 

JAPAN AND KURIL ISLANDS

 

O: 30SEP2022 05:58:37  36.1N  139.8E Mw=4.3  EMSC   EASTERN HONSHU, JAPAN        

O: 29SEP2022 15:03:38  36.8N  140.6E mb=4.7  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 26SEP2022 146903    37.0N  142.0E 4.0-5.4 BAAAA  Off East Coast Honshu      

 

NEIC reported this earthquake of M 4.3 in Eastern Honshu, Japan was felt with intensity II-III in the area(s) of Eastern Honshu, Japan in Saitama, Tokyo, Gunma and Kanagawa Prefectures, Japan.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 29SEP2022 09:57:30  30.9N  114.3W ML=3.6  EMSC   GULF OF CALIFORNIA           

P: 26SEP2022 146908    32.1N  116.4W 2.5-4.4 BBBAA  So. California             

 

O: 29SEP2022 21:58:34  31.3N  115.3W ML=3.2  EMSC   BAJA CALIFORNIA, MEXICO      

O: 29SEP2022 17:34:37  31.5N  115.6W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO      

P: 26SEP2022 146908    32.1N  116.4W 2.5-4.4 BAAAA  So. California             

 

O: 30SEP2022 06:07:25  34.1N  117.0W ML=2.5  EMSC   SOUTHERN CALIFORNIA          

P: 27SEP2022 146912    33.9N  116.9W 2.5-4.6 BAAAA  So. California             

 

O: 30SEP2022 03:06:05  36.2N  115.1W ML=2.7  EMSC   LAS VEGAS URBAN AREA, NEVADA 

P: 28SEP2022 146894    37.3N  114.9W 2.5-4.5 ABAAA  Nevada area                

 

NEIC reported this earthquake of M 2.5 in Las Vegas, Nevada was felt with intensity II-III in the area(s) of Las Vegas, Nevada and in North Las Vegas.

 

O: 29SEP2022 22:45:49  36.6N  121.1W Md=2.4  EMSC   CENTRAL CALIFORNIA           

P: 30SEP2022 146880    36.4N  121.0W 2.5-4.6 AAAAA  Central California          

 

O: 29SEP2022 19:36:58  37.3N  120.0W Md=2.3  EMSC   CENTRAL CALIFORNIA           

P: 30SEP2022 146880    36.4N  121.0W 2.5-4.6 AAAAA  Central California         

 

O: 29SEP2022 21:18:58  40.2N  120.2W Md=2.2  EMSC   NORTHERN CALIFORNIA           

P: 29SEP2022 146949    40.2N  121.2W 2.5-4.7 AAAAA  Northern California        

 

ALASKA

 

O: 29SEP2022 22:29:38  51.7N  178.8W ML=3.2  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS.

O: 29SEP2022 18:52:14  51.3N  178.7E mb=4.1  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 24SEP2022 146981    51.0N  178.0E 4.0-5.6 BAAAA  Rat Islands                

 

O: 29SEP2022 19:10:24  55.1N  159.6W mb=4.2  EMSC   ALASKA PENINSULA             

P: 29SEP2022 146985    54.7N  161.2W 3.5-5.3 AAAAA  Unimak Islands, Aleutians  

 

O: 29SEP2022 23:08:10  60.2N  141.3W Mw=5.0  EMSC   SOUTHERN ALASKA              

O: 29SEP2022 23:08:11  60.2N  141.3W MB=5.3  ECAN of Burwash Landing, YT  

P: 24SEP2022 146987    61.3N  140.1W 3.2-5.6 BBAAA  Central Alaska             

P: 28SEP2022 146987    60.0N  137.0W 3.2-5.6 AABAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 30SEP2022 04:53:25  47.3N  122.9W Ml=2.2  EMSC   PUGET SOUND REGION, WASHINGTON

O: 29SEP2022 19:50:11  46.9N  122.0W Ml=2.4  EMSC   WASHINGTON                    

P: 26SEP2022 146964    46.9N  122.0W 2.0-4.2 BAAAA  Washington state, U.S.     

 

O: 27SEP2022 19:40:47  48.7N  128.9W MB=3.1  ECAN of Port Alice, BC  

O: 29SEP2022 15:09:34  47.7N  128.7W ML=3.2  EMSC   OFF COAST OF WASHINGTON      

P: 24SEP2022 146963    48.9N  129.3W 2.8-5.3 BAAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

O: 29SEP2022 07:20:15  31.7N  104.1W ML=2.7  EMSC   WESTERN TEXAS

O: 29SEP2022 08:10:10  31.7N  104.4W ML=2.4  EMSC   WESTERN TEXAS

O: 29SEP2022 08:16:52  31.7N  104.4W ML=2.1  EMSC   WESTERN TEXAS

O: 29SEP2022 17:28:15  31.7N  104.4W ML=2.0  EMSC   WESTERN TEXAS

O: 29SEP2022 17:28:15  31.7N  104.4W ML=2.0  EMSC   WESTERN TEXAS

O: 30SEP2022 05:37:24  31.7N  104.4W ML=2.8  EMSC   WESTERN TEXAS

O: 30SEP2022 06:09:43  31.6N  104.5W ML=2.9  EMSC   WESTERN TEXAS                

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 BAAAA  SW U.S.A                   

 

O: 29SEP2022 23:59:13  44.8N  110.8W Ml=2.6  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 26SEP2022 146967    44.6N  110.8W 2.0-3.9 BAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 29SEP2022 16:25:08  35.2N   97.8W mb=2.7  EMSC   OKLAHOMA                     

P: 25SEP2022 146921    36.0N   97.0W 2.0-4.1 BAAAA  Southern Plains            

 

NEIC reported this earthquake of M 3.1 in Oklahoma was felt with intensity II-III in the area(s) of Oklahoma in Aline and Carmen.

 

O: 29SEP2022 22:59:08  36.5N   98.4W mb=2.7  EMSC   OKLAHOMA                     

P: 28SEP2022 146922    37.0N   98.0W 2.0-4.1 AAAAA  Southern Plains            

 

 

O: 28SEP2022 20:19:16  41.7N   81.5W MB=1.9  ECAN of Cleveland, OH               

P: 24SEP2022 146953    41.8N   81.4W 2.0-4.1 BAAAA  Ohio/Lake Erie             

 

O: 28SEP2022 13:54:26  70.8N   71.6W MB=3.1  ECAN of Clyde River, NU             

P: 24SEP2022 147000    73.3N   73.5W 2.5-3.9 BCAAA  Baffin/Davis Strait Canada 

 

O: 28SEP2022 10:26:33  83.1N   53.3W MB=3.3  ECAN of Nord, GL                    

 

O: 28SEP2022 08:39:18  45.1N   65.9W MB=1.5  ECAN of Saint John, NB              

P: 22SEP2022 146938    44.4N   68.2W 2.0-4.1 CABAA  Maine                      

 

O: 26SEP2022 23:29:51  47.1N   76.3W MB=1.9  ECAN of Grand-Remous, QC            

P: 24SEP2022 146946    47.0N   76.0W 2.0-4.3 AAAAA  New York State              

 

HAWAII

 

O: 30SEP2022 02:27:34  19.5N  155.6W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII

O: 29SEP2022 14:12:08  19.2N  155.5W ML=3.3  EMSC   ISLAND OF HAWAII, HAWAII     

P: 28SEP2022 146833    18.8N  155.2W 3.0-4.5 AAAAA  Hawaii                     

 

NEIC reported this earthquake of M 3.1 in Hawaii was felt with intensity II-III in the area(s) of Hawaii in Kailua Kona.

An M 3.2 also occurred in Hawaii today and was reported with intensity II-III in Hawaii in Naalehu, Mountain View, Pepeekeo, Honokaa and Kehei.

 

 

MOD

STRONG EARTHQUAKE IN SOUTH ATLANTIC 103 DEGREES FROM MICHOACAN, MEXICO M 7.6

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 28, 2022

 

The strongest earthquake in the world today was an M 6.6 in the South Atlantic region east of the South Sandwich Islands.  The epicenter of this earthquake is at 103 degrees from the M 7.6 in Michoacan, Mexico of September 19, 2022 and is the strongest earthquake in the world since that event. The likelihood of seismic triggering at this distance from the Michoacan event had been noted in previous issues of this summary as:

 

"Areas likely to see far-field seismic enhancement from this earthquake include:

 

P- and S- shadow zone edge and node 7 (101-110 degrees): Mexico to Greece. Turkey, Vanuatu, Hokkaido, Southern Mid-Atlantic" (September 19-20, 2022)

 

As noted on many occasions in previous issues of this summary, energy associated with body waves and surface wave is most concentrated at the Shadow zone boundary on the surface (at and near 103 degrees from the main surface disturbance). This energy can subsequently trigger subsequential seismicity in seismic areas at that distance from the epicenter of the main disturbance which can include major earthquakes, major nuclear tests, strong cyclones, meteor impacts etc.

 A pair of M 5.1 quakes in the Mariana Islands as well as moderate quakes in the Bonin and Izu Islands and an M 4.5 in the Mediterranean today were also located  103 degrees from Michoacan, Mexico.

 

Today's M 6.7 was followed about an hour later by an M 5.4 aftershock. It occurred near local solar midnight and was likely enhanced by strong tidal stresses which maximize near this hour. Forecast 146791 had expected this event within about 100 km was likely around September 20.

 

O: 29SEP2022 04:11:26  60.8S   20.2W mb=5.4  EMSC   EAST OF SOUTH SANDWICH ISLANDS

O: 29SEP2022 03:03:24  60.9S   20.1W Mw=6.7  EMSC   EAST OF SOUTH SANDWICH ISLANDS

P: 20SEP2022 146791    61.0S   22.0W 4.0-5.6 CAAAA  Southern  Ocean            

 

The strong swarm in the Reykjanes Ridge south of Iceland also continued today with more than 20 new events of M>=4 included three of M 5.1. This series began September 26 and included an M 5.7 when Hurricane Fiona, the strongest ocean storm in this region in decades,  passed over this epicenter. Forecast  146979 had expected this activity was likely around September 26.

 

O: 28SEP2022 07:13:15  53.6N   35.1W mb=4.4  EMSC   REYKJANES RIDGE

O: 28SEP2022 10:59:47  53.6N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 14:13:46  53.6N   35.3W Mw=5.1  EMSC   REYKJANES RIDGE

O: 29SEP2022 02:06:46  53.6N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 07:59:37  53.7N   35.5W mb=4.9  EMSC   REYKJANES RIDGE

O: 28SEP2022 12:30:43  53.7N   35.6W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 21:11:18  53.7N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 06:58:40  53.7N   35.5W mb=4.7  EMSC   REYKJANES RIDGE

O: 28SEP2022 12:49:10  53.8N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 13:20:52  53.8N   35.3W mb=4.4  EMSC   REYKJANES RIDGE

O: 28SEP2022 17:56:23  53.8N   35.2W mb=4.4  EMSC   REYKJANES RIDGE

O: 28SEP2022 23:42:41  53.8N   35.8W mb=4.5  EMSC   REYKJANES RIDGE

O: 29SEP2022 04:45:07  53.8N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 29SEP2022 05:38:52  53.8N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 09:06:05  53.9N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 09:50:58  53.9N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 28SEP2022 10:03:05  53.9N   35.2W Mw=5.1  EMSC   REYKJANES RIDGE

O: 29SEP2022 00:38:28  53.9N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 29SEP2022 06:36:03  53.9N   35.2W Mw=5.0  EMSC   REYKJANES RIDGE

O: 29SEP2022 04:08:23  54.0N   35.3W mb=5.0  EMSC   REYKJANES RIDGE

O: 29SEP2022 00:34:29  54.1N   35.3W mb=4.5  EMSC   REYKJANES RIDGE

O: 29SEP2022 02:24:00  53.5N   35.2W Mw=5.1  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 BAAAA  North Mid-Atlantic Ridge   

 

Another moderately large earthquake today occurred south of Michoacan, Mexico with M 5.5 on the Northern East Pacific Rise. This is the strongest quake within about 200 km of this epicenter since an M 5.7 on December 23, 2020; an M 6.0 on January 18, 2019 and an M 5.8 on May 14, 2016. It was not reported felt. This earthquake occurred as a new Tropical Depression was forming near the epicenter. This summary had noted this as:

 

"TS    ORLENE   2022-09-29  00:00 UT  14.5N  104.4W  045 kts  south of Michoacan, Mexico

 

 

TS Orlene (16E) continued today south of Michoacan, Nexico  with winds up to 45 kts. It is expected to track to the north and may enhance aftershocks in the next several days in the northern East Pacific Rise and in Michoacan, Baja and Colima, Mexico." (September 29, 2022)

 

 

O: 28SEP2022 22:34:48   8.5N  102.7W Mw=5.5  EMSC   NORTHERN EAST PACIFIC RISE   

 

 

An unusually larger M 5.1 also occurred in the northeastern Caribbean and was felt from the Virgin Islands to Guadeloupe, Leeward Islands.  A moderate earthquakes of M 5.0-5.1 occurred today in the region of the Virgin Islands and in Antigua, Barbuda in the northeastern Caribbean. NEIC reported it was felt with maximum intensity IV in Saint John's Barbuda and Antigua with intensity II-III in Codrington, Cedar Grove, Potters Village, Antigua and Barbuda and in Saint Kitts and Nevis at Mansion Christ Church, Nochola Town, Monkey Hill Basseterre, Boyds Trinity, and in Point-a-Pitre, Grande-Terre, Guadeloupe. This is the strongest earthquake within about 200 km of these epicenters since an M 5.2 on February 9, 2018. The last of significantly larger magnitude in this region was an M 5.6 on April 17, 2017. Hurricane Fiona passed over this epicenter several days ago and enhanced seismicity was expected due to stresses from this storm in this summary at the time as:

 

"TS Fiona continued today south of Puerto Rico with winds up to 60 kts. It is expected to track to the west over the next several days reaching Puerto Rico in the next two  days as a major storm. It could help promoted enhanced seismicity in the Virgin Islands, Leeward Islands and Puerto Rico around September 18-19." (September 18-24, 2022)

 

Forecast 146834 had expected today's activity in this area was likely around September 26.  This activity is located at 144 degrees from the M 7.0 in Luzon, Philippines of July 27, 2022 and may have been promoted by energy

from that source.

 

O: 28SEP2022 21:37:56  17.9N   61.6W ML=4.2  EMSC   ANTIGUA AND BARBUDA REGION

O: 29SEP2022 00:36:19  17.9N   61.5W ML=3.9  EMSC   ANTIGUA AND BARBUDA REGION

O: 28SEP2022 21:34:02  18.0N   61.4W Mw=4.3  EMSC   ANTIGUA AND BARBUDA REGION

O: 28SEP2022 19:48:39  17.7N   61.7W Mw=5.1  EMSC   ANTIGUA AND BARBUDA REGION   

P: 26SEP2022 146834    17.0N   60.0W 3.0-5.2 AABAA  Leeward Islands            

 

 

The strongest earthquake in the U.S. or Canada today was an M 3.4 in the area of  San Francisco, California.  NEIC reported this earthquake of M 3.4 south of San Francisco, California  was felt with intensity II-III in the area(s) of San Francisco, California in Livermore, Milpitas, San Jose, Pleasanton, Fremont. This event is the strongest within about 50 km of this epicenter since an M 4.1 on June 2, 2022. The only other such event within this area this year was an M 3.6 on March 19, 2022.  Forecast 146882 had expected this activity within about 25 km was likely around September 28.

 

O: 28SEP2022 17:02:02  37.5N  121.6W Ml=3.4  EMSC   NORTHERN CALIFORNIA          

O: 28SEP2022 09:58:56  38.1N  122.0W Md=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 28SEP2022 146882    37.7N  121.9W 2.5-4.5 AAAAA  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: 28SEP2022 05:13:09  23.1N  121.4E ML=4.0  TAI    Hualien, Taiwan              

P: 26SEP2022 146869    23.0N  121.0E 4.0-5.4 AAAAA  Taiwan                     

 

CWB reported this earthquake was felt with intensity II in Taitung and I in Hualien, Yilan, Nantou,Kaoshiung, Changhua Counties, Taiwan.

 

O: 28SEP2022 16:18:03  33.4N   46.7E mb=4.3  EMSC   IRAN-IRAQ BORDER REGION      

P: 24SEP2022 146918    34.0N   49.0E 3.8-5.8 BABAA  So. Iran                   

 

O: 28SEP2022 18:03:28  27.6N   54.3E mb=4.6  EMSC   SOUTHERN IRAN                

P: 30SEP2022 146867    28.0N   56.0E 3.5-4.9 AABAA  So. Iran/Persian Gulf      

 

O: 29SEP2022 04:26:46  46.6N   82.2E mb=4.0  EMSC   KAZAKHSTAN-XINJIANG BORDER REG

P: 21SEP2022 146983    50.0N   88.0E 3.0-4.4 CCCAA  So. Siberia                

 

O: 28SEP2022 23:09:31  55.6N  160.6E mb=4.5  EMSC   KAMCHATKA PENINSULA, RUSSIA  

P: 24SEP2022 146974    54.0N  162.0E 4.0-5.4 BBAAA  E. of Kamchatka            

 

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

 

INDONESIA AND PHILIPPINES

 

O: 28SEP2022 11:41:38   2.8N  128.2E mb=4.6  EMSC   HALMAHERA, INDONESIA         

P: 28SEP2022 146798     2.0N  128.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 28SEP2022 17:35:11  17.0N  147.1E mb=5.1  EMSC   MARIANA ISLANDS REGION       

O: 28SEP2022 21:41:07  17.0N  147.1E mb=5.1  EMSC   MARIANA ISLANDS REGION

P: 25SEP2022 146845    17.0N  147.0E 4.0-5.5 BAAAA  No. Marianas               

 

NEIC reported these earthquakes of M 5.1 and M 5.1 in the Mariana Islands were felt with intensity II-III in the area(s) of the Mariana Islands in Mangilao, and Tinian, Mariana Islands and Guam.

 

CENTRAL AND SOUTH AMERICA

 

O: 28SEP2022 20:03:58  14.3S   73.6W mb=4.7  EMSC   CENTRAL PERU                 

P: 24SEP2022 147005    14.0S   71.0W 4.0-5.6 BACAA  Central Peru               

 

O: 28SEP2022 17:55:59  15.9N   95.2W ML=4.1  EMSC   OFFSHORE OAXACA, MEXICO      

P: 29SEP2022 146848    16.0N   96.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

 

O: 28SEP2022 17:52:23  16.1N   97.5W ML=4.1  EMSC   OAXACA, MEXICO               

P: 24SEP2022 146847    16.0N   98.0W 3.5-5.2 BAAAA  Oaxaca, Mexico             

 

O: 29SEP2022 05:47:25  16.9S   71.9W ML=4.0  EMSC   SOUTHERN PERU                

P: 27SEP2022 147014    18.0S   72.0W 4.0-5.4 ABAAA  So. Peru/Bolivia           

 

O: 28SEP2022 09:53:12   3.1S   77.0W mb=4.4  EMSC   PERU-ECUADOR BORDER REGION   

P: 29SEP2022 146805     4.0S   80.0W 4.0-5.5 AACAA  Ecuador                    

 

O: 29SEP2022 04:43:00  12.8N   88.8W ML=4.1  EMSC   OFFSHORE EL SALVADOR

O: 29SEP2022 04:27:00  12.8N   88.8W ML=4.1  EMSC   OFFSHORE EL SALVADOR         

P: 26SEP2022 146843    12.0N   88.0W 3.5-5.6 BAAAA  Nicaragua                  

 

O: 29SEP2022 04:09:32  17.6N  103.4W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

O: 28SEP2022 09:36:42  18.1N  103.2W ML=4.1  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 28SEP2022 10:02:50  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 28SEP2022 12:52:46  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 28SEP2022 15:53:01  18.1N  103.4W ML=4.1  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 29SEP2022 04:33:55  18.1N  103.4W ML=4.1  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 28SEP2022 20:07:03  18.2N  103.5W ML=4.1  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 28SEP2022 10:39:22  18.3N  103.4W mb=4.2  EMSC   MICHOACAN, MEXICO

P: 28SEP2022 146841    18.0N  104.0W 3.5-5.5 AAAAA  Michoacan, Mexico          

 

NEIC reported this earthquake of M 4.2 in Michoacan, Mexico was felt with intensity II-III in the area(s) of Michoacan, Mexico in Morelia, in Guadalajara, Jalsico.

 

O: 28SEP2022 19:48:39  17.7N   61.7W Mw=5.1  EMSC   ANTIGUA AND BARBUDA REGION   

P: 26SEP2022 146834    17.0N   60.0W 3.0-5.2 AABAA  Leeward Islands            

 

O: 28SEP2022 09:09:00  18.6N   73.3W ML=3.4  EMSC   HAITI REGION                 

P: 25SEP2022 146852    19.0N   74.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 28SEP2022 11:47:51  25.6S   70.7W mb=4.4  EMSC   OFFSHORE ANTOFAGASTA, CHILE  

P: 23SEP2022 147023    26.0S   71.0W 4.0-5.9 BAAAA  Coast Central Chile        

 

NEIC reported this earthquake of M  4.4 in Antofagasta, Chile was felt with intensity II-III in the area(s) of Antofagasta, Chile in Taltal.

 

O: 28SEP2022 20:49:06  28.1N  112.3W ML=3.4  EMSC   GULF OF CALIFORNIA           

 

O: 28SEP2022 15:13:46  45.8S   76.0W mb=4.7  EMSC   OFF COAST OF AISEN, CHILE    

 

O: 28SEP2022 21:37:56  17.9N   61.6W ML=4.2  EMSC   ANTIGUA AND BARBUDA REGION

O: 29SEP2022 00:36:19  17.9N   61.5W ML=3.9  EMSC   ANTIGUA AND BARBUDA REGION

O: 28SEP2022 21:34:02  18.0N   61.4W Mw=4.3  EMSC   ANTIGUA AND BARBUDA REGION

O: 28SEP2022 19:48:39  17.7N   61.7W Mw=5.1  EMSC   ANTIGUA AND BARBUDA REGION   

P: 26SEP2022 146834    17.0N   60.0W 3.0-5.2 AABAA  Leeward Islands            

 

 

AFRICA AND EUROPE

 

O: 29SEP2022 01:06:05  35.3N   22.9E mb=4.1  EMSC   CENTRAL MEDITERRANEAN SEA    

P: 29SEP2022 146888    34.0N   25.0E 3.0-4.9 ABBAA  Crete                      

 

O: 29SEP2022 04:01:23  37.9N   20.1E ML=3.8  EMSC   IONIAN SEA                   

P: 25SEP2022 146897    39.0N   20.0E 3.0-4.7 BBAAA  No. Greece                 

 

O: 29SEP2022 00:29:25  40.4N   28.6E ML=3.4  EMSC   WESTERN TURKEY               

P: 27SEP2022 146959    41.0N   28.0E 3.0-5.2 AAAAA  Romania/NW Turkey          

 

O: 28SEP2022 14:55:50  40.8N   42.8E ML=3.3  EMSC   EASTERN TURKEY               

P: 18SEP2022 146663    40.0N   44.0E 3.5-4.9 CAAAA  Caucasus/Caspian Sea       

 

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

 

SOUTHWEST PACIFIC

 

O: 28SEP2022 16:11:29  17.5S  178.9W mb=4.3  EMSC   FIJI REGION                  

P: 23SEP2022 147017    17.0S  179.0W 4.0-5.8 BAAAA  Tonga Islands              

P: 30SEP2022 147017    18.0S  180.0W 4.0-5.6 AAAAA  Tonga Islands              

 

O: 29SEP2022 00:42:37  14.0S  166.8E mb=4.7  EMSC   VANUATU                      

P: 26SEP2022 147020    14.0S  167.0E 4.0-5.4 BAAAA  Vanuatu Islands            

 

O: 29SEP2022 05:43:12  19.9S  169.7E mb=4.1  EMSC   VANUATU                      

P: 27SEP2022 147025    21.0S  171.0E 4.0-5.4 ABBAA  Loyalty Islands            

 

OCEAN RIDGES

 

O: 28SEP2022 22:34:48   8.5N  102.7W Mw=5.5  EMSC   NORTHERN EAST PACIFIC RISE   

 

O: 29SEP2022 04:11:26  60.8S   20.2W mb=5.4  EMSC   EAST OF SOUTH SANDWICH ISLANDS

O: 29SEP2022 03:03:24  60.9S   20.1W Mw=6.7  EMSC   EAST OF SOUTH SANDWICH ISLANDS

P: 20SEP2022 146791    61.0S   22.0W 4.0-5.6 CAAAA  Southern  Ocean            

 

O: 28SEP2022 07:13:15  53.6N   35.1W mb=4.4  EMSC   REYKJANES RIDGE

O: 28SEP2022 10:59:47  53.6N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 14:13:46  53.6N   35.3W Mw=5.1  EMSC   REYKJANES RIDGE

O: 29SEP2022 02:06:46  53.6N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 07:59:37  53.7N   35.5W mb=4.9  EMSC   REYKJANES RIDGE

O: 28SEP2022 12:30:43  53.7N   35.6W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 21:11:18  53.7N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 29SEP2022 06:58:40  53.7N   35.5W mb=4.7  EMSC   REYKJANES RIDGE

O: 28SEP2022 12:49:10  53.8N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 13:20:52  53.8N   35.3W mb=4.4  EMSC   REYKJANES RIDGE

O: 28SEP2022 17:56:23  53.8N   35.2W mb=4.4  EMSC   REYKJANES RIDGE

O: 28SEP2022 23:42:41  53.8N   35.8W mb=4.5  EMSC   REYKJANES RIDGE

O: 29SEP2022 04:45:07  53.8N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 29SEP2022 05:38:52  53.8N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 09:06:05  53.9N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 09:50:58  53.9N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 28SEP2022 10:03:05  53.9N   35.2W Mw=5.1  EMSC   REYKJANES RIDGE

O: 29SEP2022 00:38:28  53.9N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 29SEP2022 06:36:03  53.9N   35.2W Mw=5.0  EMSC   REYKJANES RIDGE

O: 29SEP2022 04:08:23  54.0N   35.3W mb=5.0  EMSC   REYKJANES RIDGE

O: 29SEP2022 00:34:29  54.1N   35.3W mb=4.5  EMSC   REYKJANES RIDGE

O: 29SEP2022 02:24:00  53.5N   35.2W Mw=5.1  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 BAAAA  North Mid-Atlantic Ridge   

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 28SEP2022 16:45:42  33.4S  179.4E ML=4.2  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 23SEP2022 147037    37.0S  178.0E 3.0-4.7 BCBAA  North Island, N.Z.         

 

JAPAN AND KURIL ISLANDS

 

O: 29SEP2022 04:17:48  28.6N  142.5E mb=4.9  EMSC   BONIN ISLANDS, JAPAN REGION  

P: 27SEP2022 146857    28.0N  143.0E 4.0-5.7 AAAAA  Bonin Islands              

 

O: 28SEP2022 10:32:17  32.4N  142.7E mb=4.5  EMSC   IZU ISLANDS, JAPAN REGION    

P: 25SEP2022 146902    33.0N  142.0E 4.0-5.4 BAAAA  Off East Coast Honshu      

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

 

O: 29SEP2022 04:49:22  34.6N  116.6W Ml=2.2  EMSC   SOUTHERN CALIFORNIA          

P: 28SEP2022 146915    34.6N  116.7W 2.5-4.6 AAAAA  So. California             

 

O: 28SEP2022 21:19:45  35.5N  118.4W Ml=2.0  EMSC   CENTRAL CALIFORNIA           

P: 29SEP2022 146916    35.3N  118.6W 2.5-4.4 AAAAA  So. California             

 

O: 28SEP2022 21:07:43  37.4N  118.4W Md=2.4  EMSC   CENTRAL CALIFORNIA           

P: 30SEP2022 146876    37.5N  118.6W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 28SEP2022 17:02:02  37.5N  121.6W Ml=3.4  EMSC   NORTHERN CALIFORNIA          

O: 28SEP2022 09:58:56  38.1N  122.0W Md=2.1  EMSC   SAN FRANCISCO BAY AREA, CALIF.

P: 28SEP2022 146882    37.7N  121.9W 2.5-4.5 AAAAA  Central California         

 

O: 29SEP2022 03:00:14  38.2N  117.9W ml=2.9  EMSC   NEVADA                        

P: 26SEP2022 146876    37.8N  118.4W 2.5-4.4 BAAAA  California/Nevada area     

 

O: 28SEP2022 15:52:10  38.6N  119.5W Md=2.3  EMSC   CENTRAL CALIFORNIA           

P: 28SEP2022 146878    38.8N  119.6W 2.5-4.8 AAAAA  California/Nevada area     

 

O: 28SEP2022 21:28:02  38.8N  122.8W Md=2.1  EMSC   NORTHERN CALIFORNIA          

P: 30SEP2022 146883    38.7N  122.7W 2.5-4.6 AAAAA  Central California         

 

O: 29SEP2022 01:04:16  39.2N  120.5W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 27SEP2022 146878    39.3N  120.0W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 28SEP2022 11:50:23  40.3N  124.9W ML=2.2  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 29SEP2022 146950    40.3N  124.7W 2.5-4.7 AAAAA  Off Coast of No. Calif     

 

ALASKA

 

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

 

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: 28SEP2022 18:51:50  31.7N  104.6W ML=2.0  EMSC   WESTERN TEXAS

O: 28SEP2022 19:45:24  31.7N  104.4W ML=2.0  EMSC   WESTERN TEXAS

O: 29SEP2022 02:16:42  31.7N  104.4W ML=2.0  EMSC   WESTERN TEXAS

O: 29SEP2022 04:25:54  31.7N  104.4W ML=2.3  EMSC   WESTERN TEXAS

O: 28SEP2022 10:24:17  31.7N  104.3W ML=2.0  EMSC   WESTERN TEXAS                

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 28SEP2022 20:03:17  36.2N   95.9W ML=2.0  EMSC   TULSA URBAN AREA, OKLAHOMA   

P: 25SEP2022 146921    36.0N   97.0W 2.0-4.1 BAAAA  Southern Plains            

 

HAWAII

 

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

 

ERATE QUAKES SHAKE BAJA CALIFORNIA, MEXICO AND CENTRAL PHILIPPINES

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 27, 2022

 

An M 5.4 occurred today in the Baja Peninsula of Mexico today. NEIC reported it was felt with light intensity in Baja California at Santa Rosalia, Tlalnepantly and Obregon, Sonora. This may be related to the recent landfall of Hurricane Ida in southwestern Florida and Hurricane Fiona as noted in this summary in previous issues:

 

"Hurricane Fiona continued north of the Turks and Cacos Islands near Bermuda as a category 4 storm with winds up to 130 kts. It is expected to track to the north making landfall with the North American Continental slope and rise in the next day. This could help promote seismicity along the western edge of the North American Plate and may have helped trigger the M 7.6 mainshock of September 19 and the 6.8 aftershock in Mexico today.  The area of northern California and north could see enhanced seismicity” (September 25, 2022)

 

And 

 

"Hurricane Fiona continued  over Nova Scotia today with winds up to 100 kts. It is expected to track to the north making landfall with Nova Scotia today. This appears to be one of the strongest storms to hit Nova Scotia in recent years. This could help promote seismicity along the western edge of the North American Plate.  The area of northern California and north could see enhanced seismicity at this time. Some enhanced seismicity may also occur in eastern U.S. and Canada as this storm moves north” (September 26, 2022)

 

Iand

 

"Hurricane Ian (TD 9) continued South of Cuba with winds up to 105 kts. It is expected to track to the west and north over the next several days reaching as a hurricane. It could make landfall near Tampa, Florida. The area is under mandatory evacuation orders preceding this hurricane which is the strongest to hit the Tampa area in decades. Enhanced seismicity may occur in the Caribbean area and central America while this storm is in the area.” (September 27, 2022)

 

This is the strongest earthquake within about 200 km of this epicenter since an  M  6.3 on January 19, 2018. Earthquakes of M 5.4 also occurred in the region on July 31, 2021 and January 21, 2022. This area had been expected in forecast 146586 to see enhanced seismicity  towards the end of September, 2022.  This earthquake like the M 5.3 in Turkey today is located at 104 degrees from the M 7.6 in New Guinea of September 10, 2022 and was probably promoted by energy from that source.

 

 

O: 28SEP2022 01:18:26  27.1N  111.1W Mw=5.4  EMSC   GULF OF CALIFORNIA            

O: 28SEP2022 02:17:14  26.9N  111.4W mb=4.2  EMSC   GULF OF CALIFORNIA

P: 17SEP2022 146586    28.0N  112.0W 3.5-5.1 CAAAA  Gulf of California         

 

Earthquakes of M 5.3 and 4.7 with smaller aftershocks occurred today in northern Mindanao, Philippines. NEIC reported it was felt lightly in Maygatasan, Caraga, Philippines. This epicenter is near the location where Typhoon Noru made landfall two days as and may have been promoted by energy associated with that storm as noted in previous issues of this summary:

 

"Super-Typhoon Noru (TD 18W) continued today over Luzon, Philippines with winds up to 130 kts. It is expected to track to the west and could help promote enhanced seismicity in the Philippines most likely around September 25-26." (September 24-26, 2022)

 

The last earthquake within about 150 km of this epicenter in the Philippines with larger or equal magnitude was an M 5.5 on June 2, 2022 and also on April 3, 2022. The last of significantly larger magnitude in this area was an M 6.0 on November 15, 2020. Forecast 146794 had expected today's event was likely in this area around September 30.

 

O: 28SEP2022 02:39:27   9.3N  126.3E mb=4.7  EMSC   MINDANAO, PHILIPPINES

O: 28SEP2022 01:12:26   9.4N  126.5E Mw=5.2  EMSC   MINDANAO, PHILIPPINES        

O: 28SEP2022 01:12:26   9.4N  126.5E Mw=5.3  ANSS   MINDANAO, PHILIPPINES        

P: 30SEP2022 146794     9.0N  126.0E 4.0-5.6 AAAAA  Central Philippines        

 

An M 5.3 was also felt in eastern Turkey near the Georgia border today. NEIC reported these earthquake of M 5.3 and 4.4 in Eastern Turkey was felt with intensity CI in Susuz, Kars, Turkey and II-III in the area(s) of  in Tbilisi and Batumi, Ajaria, Georgia. A similar M 5.3 hit within about 200 km on February 13, 2022 but the only earthquake of larger magnitude in this area of eastern Turkey in the past thirty-two years was an M 5.5 on December 16, 1990. Forecasts 146663 and 146931 had expected today's activity was likely in this area at the end of September, 2022. This earthquake like the M 5.4 in Baja Mexico today is located at 104 degrees from the M 7.6 in New Guinea of September 10, 2022 and was probably promoted by energy from that source.

 

O: 27SEP2022 14:08:34  40.7N   42.9E Mw=5.3  EMSC   EASTERN TURKEY               

O: 27SEP2022 14:24:40  40.8N   42.9E mb=4.3  EMSC   EASTERN TURKEY

O: 27SEP2022 14:43:36  40.8N   42.8E ML=4.0  EMSC   EASTERN TURKEY

O: 27SEP2022 16:16:54  40.8N   42.9E mb=4.4  EMSC   EASTERN TURKEY

P: 18SEP2022 146663    40.0N   44.0E 3.5-4.9 CAAAA  Caucasus/Caspian Sea        

P: 28SEP2022 146931    43.0N   44.0E 3.5-5.0 ACAAA  Caucasus/Caspian Sea       

 

The strongest earthquake in the U.S. or Canada today was an M 4.5 in Hawaii. NEIC reported it was felt with intensity III in Hawaii at Hawaii National Park, Volcano, Naalehu, Pahoa, Mountain View, Hilo, Kurtistown, Holualoa, and Keaau. This is the strongest earthquake in the current eruption of Kilauea since an M 4.6 on April 15, 2022. This earthquake occurred within minutes of local solar noon and was probably promoted by strong tidal stresses associated with the new moon which  maximize near this hour. Forecast 146833 had expected this event within about 25 km was likely around September 24-28.

 

O: 27SEP2022 22:43:58  19.3N  155.4W mb=4.5  EMSC   ISLAND OF HAWAII, HAWAII      

P: 24SEP2022 146833    19.3N  155.2W 3.0-4.5 BAAAA  Hawaii                     

P: 28SEP2022 146833    18.8N  155.2W 3.0-4.5 AAAAA  Hawaii                     

 

An M 3.8 was also widely felt in Central California north of Los Angeles in the Bakersfield area today. NEIC reported this earthquake of M 3.7 in Central California near Lake Isabella was felt with intensity II-III in the area(s) of Central California near Lake Isabella, Bodfish, Weldon, Caliente, Wofford Heights, Kernville, Onyx, Glennville, Bakersfield and Tehachapi.  This is the strongest earthquake in the Bakersfield area of California since an  M 3.8-3.9 on August 27, 2021 and an M 3.8 on July 17, 2022. The last event in the region of significantly larger magnitude was an M 4.3 on April 19, 2014. It occurred within minutes of local solar midnight and was probably promoted by tidal stresses with the new moon which maximize near this hour. Forecast 146916 had expected this event was likely within about 25 km of the epicenter around September 29. This earthquake is located at 104 degrees from the M 6.6 in Sichuan China of September 5, 2022 and at 103 degrees from the M 7.0 in Luzon, Philippines of July 27 and was probably promoted by energy from those sources.

 

O: 27SEP2022 08:03:38  35.5N  118.4W ML=3.8  EMSC   CENTRAL CALIFORNIA

O: 27SEP2022 09:10:43  35.5N  118.4W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 27SEP2022 13:29:33  35.5N  118.4W Ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 28SEP2022 00:19:01  35.8N  118.0W Ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 27SEP2022 12:53:59  35.3N  118.6W Ml=2.3  EMSC   CENTRAL CALIFORNIA           

P: 29SEP2022 146916    35.3N  118.6W 2.5-4.4 AAAAA  So. California             

 

The strong swarm of earthquakes in the Reykjanes Ridge south of Iceland continued today with more than 30 events of M>=4.0. This summary noted this swarm in the past issue as:

 

"The strongest earthquake in the world today was an M 5.7 in the North Atlantic on the Reykjanes Ridge. It was followed by a strong series of aftershocks.  This area had been expected to see enhanced seismicity at this time as the remnants of Hurricane Fiona passed over this epicenter today. This summary had expected this at this time in previous issues of this summary as:

 

"Hurricane Fiona continued in the North Atlantic today west of the mid-Atlantic Ridge with winds up to 50 km. This storm did considerable damage and flooding in Nova Scotia and Newfoundland, Canada as it hit that region as the strongest storm in decades in the area.  As it moves past Nova Scotia the remnants are expected to track to the east reaching the Northern Mid-Atlantic Ridge in the next day or two near 54N 35W. The Reykjanes Ridge in this area is likely to see enhanced seismicity as Fiona passes this area." (September 25-26, 2022)

 

HUR   FIONA    2022-09-27  00:00 UT  54.9N   34.2W   40 kts  Northern Mid-Atlantic

 

This is the strongest activity within about 200 km of this epicenter in the Reykjanes area since an M 6.8 on February 16, 1998. That was the only earthquake in this region with M>=5.7 in at least 30 years. Forecast 146979 had expected this activity was likely within about 25 km of this epicenter was likely around September 26. This activity is at 143 degrees from the M 7.0 in the Loyalty Islands of September 14, 2022 and at 101-105 degrees from the M 6.9 in Taiwan of September and the M 7.0 in Luzon, Philippines of July 27, 2022 and near the sixth node (60 degrees) from the M 7.6 in Michoacan Mexico of September 19 and was probably promoted by energy from those source." (September 26-27, 2022) This activity is located at 143-144 degrees from the M 7.0 in the Loyalty Islands of  September 14 and at 102 degrees from the M 6.9 in Taiwan of September 18 and was probably promoted by energy from that source.

 

O: 27SEP2022 07:25:45  53.6N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 00:55:09  53.7N   35.4W mb=4.9  EMSC   REYKJANES RIDGE

O: 28SEP2022 02:22:36  53.7N   35.2W mb=4.5  EMSC   REYKJANES RIDGE

O: 28SEP2022 06:09:47  53.7N   35.1W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 13:21:35  53.8N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 19:04:48  53.8N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 19:53:44  53.8N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 21:09:54  53.8N   35.4W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 22:28:52  53.8N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 23:13:32  53.8N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 28SEP2022 00:22:52  53.8N   35.9W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 02:55:24  53.8N   36.1W mb=4.5  EMSC   REYKJANES RIDGE

O: 28SEP2022 03:41:36  53.8N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 13:07:35  53.9N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 15:55:52  53.9N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 15:55:52  53.9N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 21:18:19  53.9N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 27SEP2022 13:46:51  54.0N   35.1W mb=4.5  EMSC   REYKJANES RIDGE

O: 28SEP2022 01:43:26  54.0N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 28SEP2022 01:43:26  54.0N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 28SEP2022 06:46:21  54.0N   35.2W mb=5.0  EMSC   REYKJANES RIDGE

O: 27SEP2022 07:19:43  54.1N   35.7W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 08:13:57  54.1N   35.4W mb=4.5  EMSC   REYKJANES RIDGE

O: 27SEP2022 10:34:57  54.1N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 11:59:49  54.1N   35.2W mb=4.9  EMSC   REYKJANES RIDGE

O: 27SEP2022 19:39:28  54.1N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 08:47:39  54.3N   34.8W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 10:59:19  54.3N   35.1W mb=4.8  EMSC   REYKJANES RIDGE

O: 28SEP2022 05:01:53  53.5N   35.4W mb=4.5  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 AAAAA  North Mid-Atlantic Ridge   

 

Three other moderate earthquakes also occurred in the Atlantic area today. These included event of M 5.2 in the current series in the South Sandwich Islands and an M 4.7 in the current series in the southern Mid-Atlantic ridge. These had been forecast in forecasts 147012, 147029 and 147046 within about 100 km of these epicenter. A more unusual earthquake occurred in the northern  Mid-Atlantic Ridge with M 5.0. This epicenter was under the location of Tropical Depression 11E over the past two days as noted in earlier issues of this summary:

 

"One disturbance is currently poised to become a hurricane in the mid-Atlantic.  It are located at 15N 35W and moving to the west. NHC estimates it could reach cyclone status with 70% chance in the next two days." (September 27-28, 2022)

 

It is likely that stresses associated with TD 11E helped promote this seismicity in the northern Atlantic. Forecast 146842 had expected this event was likely within about 300 km around September 29. The M 5.0 occurred within minutes of local solar noon and was probably also promoted by strong tidal stresses with the new moon which maximize near this hour. 

 

This activity is located at 145-146 degrees from the M 7.0 in the Loyalty Islands of September 14 and at 145-146 degrees from the Luzon quake of July 27, 2022 and was probably promoted by energy from those sources.

 

O: 27SEP2022 15:12:41  12.1N   43.9W mb=5.0  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 29SEP2022 146842    15.0N   45.0W 4.0-5.8 ACAAA  Mid-Atlantic Ridge         

 

The activity in the southern Mid-Atlantic began shortly after the M 7.6 in Papua New Guinea of September 10, 2022 which is at 143 degrees distance and was probably promoted by energy from that source.

 

O: 27SEP2022 16:45:15  20.5S   11.6W mb=4.7  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

P: 27SEP2022 147012    20.0S   11.0W 4.0-5.5 AAAAA  So. Mid-Atlantic Ridge     

P: 28SEP2022 147029    20.0S   12.0W 4.0-5.8 AAAAA  So. Mid-Atlantic Ridge     

 

O: 28SEP2022 06:34:26  58.0S   25.5W mb=5.2  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 AAAAA  So. Sandwich 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: 27SEP2022 11:11:09  22.9N  121.2E ML=4.2  EMSC   TAIWAN REGION                

O: 27SEP2022 11:11:09  22.9N  121.2E ML=4.2  TAI    Hualien, Taiwan              

P: 26SEP2022 146869    23.0N  121.0E 4.0-5.4 AAAAA  Taiwan                      

 

CWB reported this earthquake was felt with intensity IV in Taitung and I in Hualien and Nantou Counties, Taiwan.

 

 

O: 28SEP2022 05:41:25  36.8N   72.6E mb=4.3  EMSC   PAKISTAN                     

P: 22SEP2022 146889    37.0N   72.0E 3.8-5.2 CAAAA  Hindu Kush/Pakistan        

P: 27SEP2022 146901    36.0N   75.0E 3.8-5.4 AABAA  Northern India             

 

O: 27SEP2022 21:20:28  42.3N   80.4E mb=4.3  EMSC   KAZAKHSTAN-XINJIANG BORDER REG

O: 27SEP2022 17:26:44  42.5N   81.1E mb=4.0  EMSC   NORTHERN XINJIANG, CHINA

P: 23SEP2022 146901    39.0N   78.0E 3.8-5.2 BCBAA  Northern India             

 

INDONESIA AND PHILIPPINES

 

O: 28SEP2022 03:46:36   0.2N   99.9E ML=4.8  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 26SEP2022 146818     2.0S  100.0E 4.0-5.4 ACAAA  So. of Sumatera            

 

O: 28SEP2022 04:21:07   2.1N  126.2E mb=4.5  EMSC   MOLUCCA SEA                  

P: 29SEP2022 146798     3.0N  127.0E 4.0-5.6 AAAAA  Halmahera                  

 

O: 28SEP2022 06:03:10   4.3S  153.0E mb=4.7  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 25SEP2022 146810     5.0S  153.0E 4.0-5.4 BAAAA  New Britain                

 

O: 27SEP2022 17:58:05   5.2S  125.6E ML=4.1  EMSC   BANDA SEA                    

P: 27SEP2022 146804     3.0S  126.0E 4.0-5.6 ACAAA  Ceram area                 

 

O: 28SEP2022 04:36:54   8.6S  111.3E ML=4.1  EMSC   JAVA, INDONESIA              

P: 29SEP2022 146816     9.0S  111.0E 4.0-5.7 AAAAA  So. of Java                

 

O: 27SEP2022 20:37:43   9.9S  114.9E ML=4.2  EMSC   SOUTH OF BALI, INDONESIA     

P: 23SEP2022 146816     9.0S  113.0E 4.0-5.6 BABAA  So. of Bali                

 

 

O: 28SEP2022 02:39:27   9.3N  126.3E mb=4.7  EMSC   MINDANAO, PHILIPPINES

O: 28SEP2022 01:12:26   9.4N  126.5E Mw=5.2  EMSC   MINDANAO, PHILIPPINES         

P: 30SEP2022 146794     9.0N  126.0E 4.0-5.6 AAAAA  Central Philippines        

 

CENTRAL AND SOUTH AMERICA

 

O: 27SEP2022 11:19:27  14.5N   94.2W ML=4.0  EMSC   OFF COAST OF CHIAPAS, MEXICO 

O: 27SEP2022 15:44:56  15.0N   93.1W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 27SEP2022 13:30:54  17.3N  101.4W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 24SEP2022 146840    19.0N  101.0W 3.5-5.8 BBAAA  Michoacan, Mexico          

 

O: 28SEP2022 06:54:08  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 27SEP2022 17:59:37  18.2N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 28SEP2022 03:43:18  18.2N  103.0W ML=4.1  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 27SEP2022 15:32:29  18.5N  104.6W ML=4.3  EMSC   OFFSHORE COLIMA, MEXICO

O: 27SEP2022 08:35:43  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 28SEP2022 146841    18.0N  104.0W 3.5-5.5 AAAAA  Michoacan, Mexico          

 

O: 28SEP2022 03:23:23  19.2S   69.9W mb=4.1  EMSC   TARAPACA, CHILE              

P: 28SEP2022 147014    19.0S   69.0W 4.0-5.5 AAAAA  So. Peru/Bolivia           

 

O: 27SEP2022 07:36:25  19.5N   69.9W ML=3.1  EMSC   DOMINICAN REPUBLIC

O: 27SEP2022 07:21:18  19.3N   64.4W ML=3.4  EMSC   VIRGIN ISLANDS REGION        

O: 27SEP2022 07:21:18  19.3N   64.4W ML=4.0  ANSS   VIRGIN ISLANDS REGION        

P: 24SEP2022 146835    18.0N   64.0W 3.0-5.0 BBAAA  Leeward Islands            

 

NEIC reported this earthquake of M 4.0 in the Virgin Islands was felt with intensity II-III in the area(s) of  San Juan, Puerto Rico.

 

O: 27SEP2022 17:25:36  19.5S   70.1W mb=4.5  EMSC   TARAPACA, CHILE              

P: 28SEP2022 147024    20.0S   70.0W 4.0-5.8 AAAAA  So. Peru/Bolivia           

 

O: 27SEP2022 17:48:06  23.2S   68.6W mb=4.4  EMSC   ANTOFAGASTA, CHILE           

P: 26SEP2022 147024    23.0S   69.0W 4.0-5.6 AAAAA  Coast No. Chile            

 

NEIC reported this earthquake of M 4.1 in Northern Chile was felt with intensity II-III in the area(s) of Northern Chile in Iquique, Tarapaca.

An M 4.5 also occurred in this region today and was reported with intensity III in Iquique and Arica, Tarapaca.

 

O: 28SEP2022 01:18:26  27.1N  111.1W Mw=5.4  EMSC   GULF OF CALIFORNIA           

O: 28SEP2022 02:17:14  26.9N  111.4W mb=4.2  EMSC   GULF OF CALIFORNIA

P: 17SEP2022 146586    28.0N  112.0W 3.5-5.1 CAAAA  Gulf of California         

 

 

AFRICA AND EUROPE

 

O: 28SEP2022 01:50:12  35.8N   22.1E mb=4.5  EMSC   CENTRAL MEDITERRANEAN SEA    

P: 26SEP2022 146873    38.0N   23.0E 3.0-4.8 ACAAA  Aegean Sea                 

 

O: 27SEP2022 14:08:34  40.7N   42.9E Mw=5.3  EMSC   EASTERN TURKEY               

O: 27SEP2022 14:24:40  40.8N   42.9E mb=4.3  EMSC   EASTERN TURKEY

O: 27SEP2022 14:43:36  40.8N   42.8E ML=4.0  EMSC   EASTERN TURKEY

O: 27SEP2022 16:16:54  40.8N   42.9E mb=4.4  EMSC   EASTERN TURKEY

P: 18SEP2022 146663    40.0N   44.0E 3.5-4.9 CAAAA  Caucasus/Caspian Sea       

P: 28SEP2022 146931    43.0N   44.0E 3.5-5.0 ACAAA  Caucasus/Caspian Sea        

 

O: 27SEP2022 12:32:20  77.8N    7.9E Mw=3.5  EMSC   SVALBARD REGION

O: 27SEP2022 09:52:00  78.8N    4.9E Mw=4.0  EMSC   GREENLAND SEA

O: 27SEP2022 07:02:57  77.8N    8.2E Mw=3.3  EMSC   SVALBARD REGION              

P: 22SEP2022 147002    79.0N    7.0E 4.0-5.8 BBAAA  Arctic Ocean Region        

 

 

SOUTHWEST PACIFIC

 

O: 27SEP2022 12:00:59  13.0S  167.7E mb=4.4  EMSC   SANTA CRUZ ISLANDS           

P: 26SEP2022 147020    14.0S  167.0E 4.0-5.4 AAAAA  Vanuatu Islands            

 

O: 28SEP2022 04:48:00  22.8S  171.6E Mw=5.4  EMSC   SOUTHEAST OF LOYALTY ISLANDS 

P: 24SEP2022 147025    22.0S  171.0E 4.0-5.4 BAAAA  Loyalty Islands            

P: 27SEP2022 147025    21.0S  171.0E 4.0-5.4 ABAAA  Loyalty Islands            

 

OCEAN RIDGES

 

O: 27SEP2022 15:12:41  12.1N   43.9W mb=5.0  EMSC   NORTHERN MID-ATLANTIC RIDGE  

P: 29SEP2022 146842    15.0N   45.0W 4.0-5.8 ACAAA  Mid-Atlantic Ridge         

 

O: 27SEP2022 16:45:15  20.5S   11.6W mb=4.7  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

P: 27SEP2022 147012    20.0S   11.0W 4.0-5.5 AAAAA  So. Mid-Atlantic Ridge     

P: 28SEP2022 147029    20.0S   12.0W 4.0-5.8 AAAAA  So. Mid-Atlantic Ridge     

 

 

O: 28SEP2022 06:34:26  58.0S   25.5W mb=5.2  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 AAAAA  So. Sandwich Islands       

 

O: 27SEP2022 07:25:45  53.6N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 00:55:09  53.7N   35.4W mb=4.9  EMSC   REYKJANES RIDGE

O: 28SEP2022 02:22:36  53.7N   35.2W mb=4.5  EMSC   REYKJANES RIDGE

O: 28SEP2022 06:09:47  53.7N   35.1W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 13:21:35  53.8N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 19:04:48  53.8N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 19:53:44  53.8N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 21:09:54  53.8N   35.4W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 22:28:52  53.8N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 23:13:32  53.8N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 28SEP2022 00:22:52  53.8N   35.9W mb=4.6  EMSC   REYKJANES RIDGE

O: 28SEP2022 02:55:24  53.8N   36.1W mb=4.5  EMSC   REYKJANES RIDGE

O: 28SEP2022 03:41:36  53.8N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 13:07:35  53.9N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 15:55:52  53.9N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 15:55:52  53.9N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 21:18:19  53.9N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 27SEP2022 13:46:51  54.0N   35.1W mb=4.5  EMSC   REYKJANES RIDGE

O: 28SEP2022 01:43:26  54.0N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 28SEP2022 01:43:26  54.0N   35.2W mb=4.8  EMSC   REYKJANES RIDGE

O: 28SEP2022 06:46:21  54.0N   35.2W mb=5.0  EMSC   REYKJANES RIDGE

O: 27SEP2022 07:19:43  54.1N   35.7W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 08:13:57  54.1N   35.4W mb=4.5  EMSC   REYKJANES RIDGE

O: 27SEP2022 10:34:57  54.1N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 11:59:49  54.1N   35.2W mb=4.9  EMSC   REYKJANES RIDGE

O: 27SEP2022 19:39:28  54.1N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 08:47:39  54.3N   34.8W mb=4.8  EMSC   REYKJANES RIDGE

O: 27SEP2022 10:59:19  54.3N   35.1W mb=4.8  EMSC   REYKJANES RIDGE

O: 28SEP2022 05:01:53  53.5N   35.4W mb=4.5  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 AAAAA  North Mid-Atlantic Ridge   

 

O: 27SEP2022 12:32:20  77.8N    7.9E Mw=3.5  EMSC   SVALBARD REGION

O: 27SEP2022 09:52:00  78.8N    4.9E Mw=4.0  EMSC   GREENLAND SEA

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 27SEP2022 16:54:19  45.5S  167.2E ML=3.9  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 27SEP2022 16:54:19  45.5S  167.2E MS=3.9  GEONET Felt with weak intensity in the area

P: 25SEP2022 147042    45.0S  167.0E 3.0-5.0 AAAAA  So. Island, N.Z.           

 

GEONET reported this earthquake was felt with weak intensity in the area southwest of Te Anau, South Island. 2 reports of felt intensity came from the area east and north of the epicenter with 1 weak, 1 light, 0 moderate, 0 strong, 0 severe and 0 extreme shaking.

 

JAPAN AND KURIL ISLANDS

 

O: 27SEP2022 14:53:41  40.7N  142.7E mb=4.2  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 26SEP2022 146934    41.0N  141.0E 3.5-5.4 AABAA  Hokkaido, Japan            

 

NEIC reported this earthquake of M 4.2 in Northern Honshu, Japan was felt with intensity II-III in the area(s) of Northern Honshu, Japan in Misawa, Aomori.

 

O: 27SEP2022 13:36:52  44.5N  150.9E mb=4.6  EMSC   EAST OF KURIL ISLANDS        

P: 24SEP2022 146934    44.0N  149.0E 3.5-5.6 BABAA  Hokkaido, Japan            

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 27SEP2022 08:03:38  35.5N  118.4W ML=3.8  EMSC   CENTRAL CALIFORNIA

O: 27SEP2022 09:10:43  35.5N  118.4W ML=2.4  EMSC   CENTRAL CALIFORNIA

O: 27SEP2022 13:29:33  35.5N  118.4W Ml=2.0  EMSC   CENTRAL CALIFORNIA

O: 28SEP2022 00:19:01  35.8N  118.0W Ml=2.1  EMSC   CENTRAL CALIFORNIA

O: 27SEP2022 12:53:59  35.3N  118.6W Ml=2.3  EMSC   CENTRAL CALIFORNIA           

P: 29SEP2022 146916    35.3N  118.6W 2.5-4.4 AAAAA  So. California             

 

O: 27SEP2022 21:48:11  31.3N  115.3W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

P: 26SEP2022 146908    32.1N  116.4W 2.5-4.4 AAAAA  So. California             

 

O: 27SEP2022 13:02:57  34.4N  116.5W ML=3.1  EMSC   SOUTHERN CALIFORNIA          

O: 27SEP2022 13:02:57  34.4N  116.5W ML=3.3  ANSS   SOUTHERN CALIFORNIA          

P: 24SEP2022 146915    34.3N  116.5W 2.5-4.6 BAAAA  So. California             

P: 28SEP2022 146915    34.6N  116.7W 2.5-4.6 AAAAA  So. California             

 

NEIC reported this earthquake of M 3.3 in Southern California was felt with intensity II-III in the area(s) of Southern California in Landers, Yucca Valley, Big Bear City, Desert Hot Springs, Calimesa and Palm Desert.

 

O: 27SEP2022 19:15:23  36.7N  114.7W ml=2.1  EMSC   NEVADA                        

P: 28SEP2022 146894    37.3N  114.9W 2.5-4.5 AAAAA  Nevada area                

 

O: 28SEP2022 06:32:30  36.6N  121.2W Md=2.2  EMSC   CENTRAL CALIFORNIA           

O: 27SEP2022 15:39:12  37.0N  121.6W ML=2.4  EMSC   NORTHERN CALIFORNIA

O: 27SEP2022 15:27:10  37.0N  121.6W Md=2.4  EMSC   NORTHERN CALIFORNIA          

P: 24SEP2022 146881    36.7N  121.4W 2.5-4.8 BAAAA  Central California         

 

NEIC reported this earthquake of M 2.6 in Central California was felt with intensity II-III in the area(s) of Central California in Gilroy, Aromas, Watsonville, San Juan Bautista, Morgan Hill, Los Banos, Carmel, San Francisco and Isleton.

 

O: 28SEP2022 02:54:43  38.2N  116.8W ml=2.1  EMSC   NEVADA                       

P: 26SEP2022 146877    37.8N  115.8W 2.5-4.5 AAAAA  California/Nevada area     

 

O: 27SEP2022 15:43:01  38.2N  117.9W ML=2.5  EMSC   NEVADA                       

P: 26SEP2022 146876    37.8N  118.4W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 27SEP2022 15:01:48  38.8N  122.8W Md=2.1  EMSC   NORTHERN CALIFORNIA          

P: 30SEP2022 146883    38.7N  122.7W 2.5-4.6 BAAAA  Central California         

 

 

ALASKA

 

O: 27SEP2022 08:24:03  62.7N  149.5W ML=3.2  EMSC   CENTRAL ALASKA               

P: 28SEP2022 146992    63.2N  145.5W 3.2-5.3 AABAA  Central Alaska             

 

O: 27SEP2022 11:17:05  63.2N  171.5W mb=3.4  EMSC   ST. LAWRENCE ISLAND, ALASKA RE

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 27SEP2022 19:40:47  48.7N  128.9W MB=3.1  ECAN of Port Alice, BC              

P: 24SEP2022 146963    48.9N  129.3W 2.8-5.3 BAAAA  Vancouver Island area      

 

ROCKY MOUNTAINS REGION

 

O: 27SEP2022 15:23:37  31.6N  104.3W ML=2.5  EMSC   WESTERN TEXAS

O: 27SEP2022 20:56:08  31.6N  104.1W ML=2.2  EMSC   WESTERN TEXAS

O: 27SEP2022 21:22:30  31.9N  103.9W ML=2.8  EMSC   WESTERN TEXAS

O: 27SEP2022 14:44:49  31.6N  104.3W ML=3.1  EMSC   WESTERN TEXAS                

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

O: 27SEP2022 16:06:03  33.0N  100.9W mb=2.4  EMSC   WESTERN TEXAS                

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 ABCAA  SW U.S.A                   

 

O: 27SEP2022 21:17:48  44.8N  110.8W Ml=2.1  EMSC   YELLOWSTONE NAT. PARK, WYOMING

P: 26SEP2022 146967    44.6N  110.8W 2.0-3.9 AAAAA  Yellowstone/Wyoming        

 

EASTERN U.S./CANADA

 

O: 27SEP2022 08:25:20  35.2N   97.7W ML=2.2  EMSC   OKLAHOMA                     

P: 25SEP2022 146921    36.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

 

O: 27SEP2022 08:35:39  36.4N   90.9W mb=2.7  EMSC   ARKANSAS                     

P: 27SEP2022 146896    38.0N   91.0W 2.0-4.1 ABAAA  New Madrid area            

 

NEIC reported this earthquake of M 2.8 in Arkansas was felt with intensity II-III in the area(s) of Arkansas in Biggers and Pocahantas.

 

O: 27SEP2022 08:54:16  42.9N   78.8W MB=1.8  ECAN of Buffalo, NY                 

P: 26SEP2022 146946    43.0N   77.0W 2.0-4.3 AABAA  New York State             

 

O: 26SEP2022 23:29:51  47.1N   76.3W MB=1.9  ECAN of Grand-Remous, QC            

P: 24SEP2022 146946    47.0N   76.0W 2.0-4.3 AAAAA  New York State             

 

O: 27SEP2022 17:05:20  35.3N   97.8W mb=2.7  EMSC   OKLAHOMA

O: 28SEP2022 00:41:30  36.3N   97.5W mb=2.4  EMSC   OKLAHOMA

 

HAWAII

 

O: 27SEP2022 22:43:58  19.3N  155.4W mb=4.5  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24SEP2022 146833    19.3N  155.2W 3.0-4.5 BAAAA  Hawaii                     

P: 28SEP2022 146833    18.8N  155.2W 3.0-4.5 AAAAA  Hawaii                     

 

STRONG EARTHQUAKE SERIES OCCURS AS FIONA HITS NORTH ATLANTIC RIDGE

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 26, 2022

 

 

The strongest earthquake in the world today was an M 5.7 in the North Atlantic on the Reykjanes Ridge. It was followed by a strong series of aftershocks.  This area had been expected to see enhanced seismicity at this time as the remnants of

Hurricane Fiona passed over this epicenter today. This summary had expected this at this time in previous issues of this summary as:

 

"Hurricane Fiona continued in the North Atlantic today west of the mid-Atlantic Ridge with winds up to 50 km. This storm did considerable damage and flooding in Nova Scotia and Newfoundland, Canada as it hit that region as the strongest storm in decades in the area.  As it moves past Nova Scotia the remnants are expected to track to the east reaching the Northern Mid-Atlantic Ridge in the next day or two near 54N 35W. The Reykjanes Ridge in this area is likely to see enhanced seismicity as Fiona passes this area." (September 25-26, 2022)

HUR   FIONA    2022-09-27  00:00 UT  54.9N   34.2W   40 kts  Northern Mid-Atlantic

 

This is the strongest activity within about 200 km of this epicenter in the Reykjanes area since an M 6.8 on February 16, 1998. That was the only earthquake in this region with M>=5.7 in at least 30 years. Forecast 146979 had expected this activity was likely within about 25 km of this epicenter was likely around September 26. This activity is at 143 degrees from the M 7.0 in the Loyalty Islands of September 14, 2022 and at 101-105 degrees from the M 6.9 in Taiwan of September and the M 7.0 in Luzon, Philippines of July 27, 2022 and near the sixth node (60 degrees) from the M 7.6 in Michoacan Mexico of September 19 and was probably promoted by energy from those source.

 

O: 27SEP2022 01:59:00  53.8N   35.1W mb=4.3  EMSC   REYKJANES RIDGE

O: 27SEP2022 03:05:35  53.8N   34.6W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 06:01:14  53.8N   35.0W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 18:21:57  53.9N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 26SEP2022 20:30:17  53.9N   35.4W Mw=5.3  EMSC   REYKJANES RIDGE

O: 27SEP2022 03:58:03  53.9N   35.2W mb=4.4  EMSC   REYKJANES RIDGE

O: 27SEP2022 06:45:06  53.9N   35.3W mb=4.5  EMSC   REYKJANES RIDGE

O: 26SEP2022 09:59:57  54.0N   35.3W Mw=5.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:54:50  54.0N   34.9W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 15:45:13  54.0N   35.4W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 17:16:07  54.0N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 18:36:19  54.0N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 19:32:18  54.0N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 19:39:48  54.0N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 19:39:48  54.0N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 22:44:01  54.0N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 23:05:45  54.0N   35.1W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 04:42:08  54.0N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 05:26:48  54.0N   35.5W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 07:41:00  54.1N   35.2W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 10:06:54  54.1N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:01:23  54.1N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:49:20  54.1N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:49:20  54.1N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:59:51  54.1N   35.0W mb=4.8  EMSC   REYKJANES RIDGE

O: 26SEP2022 18:14:40  54.1N   35.5W mb=4.9  EMSC   REYKJANES RIDGE

O: 27SEP2022 04:34:29  54.1N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 06:10:38  54.1N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:07:10  54.3N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 15:18:46  53.8N   35.0W mb=4.8  EMSC   REYKJANES RIDGE               

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 AAAAA  North Mid-Atlantic Ridge   

 

The strongest earthquake in the U.S. or Canada today was an M 5.2 in the Rat Islands, Aleutian. The last earthquake in the Rat Islands with M>=5.2 was an M 5.2 on August 14, 2022. These are probably aftershocks of the M 6.3 on June 4, 2022. Forecast 146981 had expected today's event within about 50 km was likely around September 24.

 

 

O: 26SEP2022 11:39:19  51.5N  178.5E mb=5.2  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 24SEP2022 146981    51.0N  178.0E 4.0-5.6 AAAAA  Rat Islands                

 

 

An earthquake of M 4.6-4.7 was also reported felt in South Island, New Zealand today. GEONET reported this earthquake was felt with moderate intensity in the area of Arthur's Pass, South Island, New Zealand. 1007 felt reports were published including 242 of weak and 453 of light shaking; 281 moderate; 30 strong; 1 severe and 0 extreme shaking in northern South Island. It occurred within minutes of local solar midnight and was probably promoted by high tides with the new moon which maximize near this hour. Forecast 147041 had expected this event within about 50 km was likely around

September 27.

 

O: 26SEP2022 12:52:52  42.4S  171.3E ML=4.6  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 26SEP2022 12:52:52  42.4S  171.3E MS=4.7  GEONET Felt with moderate intensity

P: 27SEP2022 147041    42.0S  172.0E 3.0-5.3 AAAAA  So. Island, N.Z.           

 

The second strongest earthquake in the world today was an M 5.4-5.5 in Vanuatu. NEIC reported this earthquake of M 5.5 in Vanuatu was felt with intensity II-III in the area(s) of Vanuatu in Luganville, Sanma. Like the other significant earthquakes enumerated above, this event also occurred within minutes of local solar midnight and was probably promoted by high tidal stresses with the new moon which maximize near this hour. Forecast 147020 had expected this event within about 50 km was likely around September 24.

 

O: 26SEP2022 13:58:02  15.2S  168.3E Mw=5.4  EMSC   VANUATU                       

P: 24SEP2022 147020    15.0S  168.0E 4.0-5.4 AAAAA  Vanuatu 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: 26SEP2022 12:57:37  41.1N   83.2E mb=4.2  EMSC   SOUTHERN XINJIANG, CHINA     

P: 21SEP2022 146937    40.0N   77.0E 4.0-5.5 BBCAA  Kirgizstan/Xinjiang        

 

O: 26SEP2022 13:59:27  32.4N   56.1E ML=4.0  EMSC   CENTRAL IRAN                 

P: 30SEP2022 146867    28.0N   56.0E 3.5-4.9 BCAAA  So. Iran/Persian Gulf      

 

O: 27SEP2022 01:04:57  32.8N   73.5E mb=4.2  EMSC   PAKISTAN                     

P: 28SEP2022 146905    34.0N   74.0E 3.8-5.2 ABAAA  Pakistan                    

 

NEIC reported this earthquake of M 4.2 in Pakistan was felt with intensity II-III in the area(s) of Pakistan in Jhelum, Punjab and Muzafferabad Azad, Kashmir.

 

O: 26SEP2022 12:33:57  44.2N   82.3E mb=4.4  EMSC   NORTHERN XINJIANG, CHINA     

P: 21SEP2022 146937    40.0N   77.0E 4.0-5.5 BCCAA  Kirgizstan/Xinjiang        

 

O: 26SEP2022 18:02:20  55.7N  160.1E mb=4.8  EMSC   KAMCHATKA PENINSULA, RUSSIA  

P: 24SEP2022 146974    54.0N  162.0E 4.0-5.4 ABAAA  E. of Kamchatka            

 

O: 26SEP2022 15:07:53  35.9N   70.6E mb=4.3  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 22SEP2022 146889    37.0N   72.0E 3.8-5.2 BBBAA  Hindu Kush/Pakistan        

 

INDONESIA AND PHILIPPINES

 

O: 26SEP2022 16:39:36   0.7S  122.5E ML=4.1  EMSC   SULAWESI, INDONESIA          

P: 29SEP2022 146792     0.0N  122.0E 4.0-5.5 BAAAA  Celebes Sea                

 

O: 26SEP2022 14:46:08   0.9N  126.6E mb=4.4  EMSC   MOLUCCA SEA                  

P: 28SEP2022 146798     2.0N  128.0E 4.0-5.4 ABBAA  Halmahera                   

 

O: 26SEP2022 21:11:32   6.5S  154.5E Mw=5.1  EMSC   BOUGAINVILLE REGION, P.N.G.  

P: 25SEP2022 146810     5.0S  153.0E 4.0-5.4 ABBAA  New Britain                

 

O: 26SEP2022 07:22:38   7.4S  120.4E ML=4.0  EMSC   FLORES SEA                   

P: 26SEP2022 146806     7.0S  120.0E 4.0-5.4 AAAAA  Flores Island area         

 

O: 26SEP2022 18:00:53   9.3N  126.8E ML=4.1  EMSC   MINDANAO, PHILIPPINES        

P: 30SEP2022 146794     9.0N  126.0E 4.0-5.6 BAAAA  Central Philippines        

 

O: 26SEP2022 23:17:35  11.0S  113.4E mb=4.7  EMSC   SOUTH OF JAVA, INDONESIA     

P: 23SEP2022 146816     9.0S  113.0E 4.0-5.6 BBAAA  So. of Bali                

 

 

CENTRAL AND SOUTH AMERICA

 

O: 27SEP2022 00:33:08  14.8N   92.6W mb=4.1  EMSC   OFFSHORE CHIAPAS, MEXICO     

O: 26SEP2022 09:39:47  15.5N   92.3W ML=4.0  EMSC   CHIAPAS, MEXICO              

P: 24SEP2022 146827    15.0N   93.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 27SEP2022 02:39:59  15.5N   95.7W ML=4.1  EMSC   OFFSHORE OAXACA, MEXICO       

P: 29SEP2022 146848    16.0N   96.0W 3.5-5.3 AAAAA  Oaxaca, Mexico             

 

O: 26SEP2022 07:58:01  16.4N   93.8W ML=4.0  EMSC   CHIAPAS, MEXICO              

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 27SEP2022 05:30:05  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 26SEP2022 22:01:02  18.6N  103.8W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 26SEP2022 23:33:20  18.1N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 24SEP2022 146841    18.0N  103.0W 3.5-6.1 AAAAA  Michoacan, Mexico          

 

O: 27SEP2022 04:41:22  19.0N   68.5W Md=3.8  EMSC   DOMINICAN REPUBLIC REGION    

P: 29SEP2022 146851    18.0N   68.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 27SEP2022 05:36:47  33.1S   73.2W mb=4.4  EMSC   OFF COAST OF VALPARAISO, CHILE

O: 26SEP2022 21:46:06  33.7S   72.6W mb=4.3  EMSC   OFFSHORE VALPARAISO, CHILE   

P: 29SEP2022 147033    34.0S   73.0W 4.0-5.8 BAAAA  Central Chile              

 

 

AFRICA AND EUROPE

 

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: 27SEP2022 01:59:00  53.8N   35.1W mb=4.3  EMSC   REYKJANES RIDGE

O: 27SEP2022 03:05:35  53.8N   34.6W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 06:01:14  53.8N   35.0W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 18:21:57  53.9N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 26SEP2022 20:30:17  53.9N   35.4W Mw=5.3  EMSC   REYKJANES RIDGE

O: 27SEP2022 03:58:03  53.9N   35.2W mb=4.4  EMSC   REYKJANES RIDGE

O: 27SEP2022 06:45:06  53.9N   35.3W mb=4.5  EMSC   REYKJANES RIDGE

O: 26SEP2022 09:59:57  54.0N   35.3W Mw=5.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:54:50  54.0N   34.9W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 15:45:13  54.0N   35.4W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 17:16:07  54.0N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 18:36:19  54.0N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 19:32:18  54.0N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 19:39:48  54.0N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 19:39:48  54.0N   35.3W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 22:44:01  54.0N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 23:05:45  54.0N   35.1W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 04:42:08  54.0N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 27SEP2022 05:26:48  54.0N   35.5W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 07:41:00  54.1N   35.2W mb=4.9  EMSC   REYKJANES RIDGE

O: 26SEP2022 10:06:54  54.1N   35.3W mb=4.8  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:01:23  54.1N   35.3W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:49:20  54.1N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:49:20  54.1N   35.4W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:59:51  54.1N   35.0W mb=4.8  EMSC   REYKJANES RIDGE

O: 26SEP2022 18:14:40  54.1N   35.5W mb=4.9  EMSC   REYKJANES RIDGE

O: 27SEP2022 04:34:29  54.1N   35.3W mb=4.6  EMSC   REYKJANES RIDGE

O: 27SEP2022 06:10:38  54.1N   35.2W mb=4.6  EMSC   REYKJANES RIDGE

O: 26SEP2022 14:07:10  54.3N   35.2W mb=4.7  EMSC   REYKJANES RIDGE

O: 26SEP2022 15:18:46  53.8N   35.0W mb=4.8  EMSC   REYKJANES RIDGE              

P: 26SEP2022 146979    54.0N   35.0W 4.0-5.7 AAAAA  North Mid-Atlantic Ridge   

 

O: 26SEP2022 12:11:59  58.9S   25.5W mb=4.7  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 BBAAA  So. Sandwich Islands       

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 26SEP2022 12:52:52  42.4S  171.3E ML=4.6  EMSC   SOUTH ISLAND OF NEW ZEALAND  

O: 26SEP2022 12:52:52  42.4S  171.3E MS=4.7  GEONET Felt with moderate intensity

P: 27SEP2022 147041    42.0S  172.0E 3.0-5.3 AAAAA  So. Island, N.Z.           

 

GEONET reported this earthquake was felt with moderate intensity in the area of Arthur's Pass, South Island, New Zealand. 1007 felt reports were published including 242 of weak and 453 of light shaking; 281 moderate; 30 strong; 1 severe and 0 extreme shaking in northern South Island.

It occurred within minutes of local solar midnight and was probably promoted

by high tides with the new moon which maximize near this hour.

 

O: 26SEP2022 10:58:53  45.1S  167.4E ML=4.0  EMSC   SOUTH ISLAND OF NEW ZEALAND  

P: 25SEP2022 147042    45.0S  167.0E 3.0-5.0 AAAAA  So. Island, N.Z.           

 

 

JAPAN AND KURIL ISLANDS

 

O: 26SEP2022 16:05:23  40.6N  142.9E Mw=4.9  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 26SEP2022 146934    41.0N  141.0E 3.5-5.4 AABAA  Hokkaido, Japan            

 

NEIC reported this earthquake of M 4.9 in Aomori, Japan was felt with intensity II-III in the area(s) of Aomori, Japan in Hachinohe, Misawa.

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 26SEP2022 21:32:36  31.1N  115.4W ML=3.0  EMSC   BAJA CALIFORNIA, MEXICO      

O: 26SEP2022 15:09:27  31.6N  116.0W Ml=2.7  EMSC   BAJA CALIFORNIA, MEXICO      

P: 26SEP2022 146908    32.1N  116.4W 2.5-4.4 AAAAA  So. California             

 

O: 26SEP2022 15:21:04  33.3N  116.2W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 23SEP2022 146908    33.1N  116.2W 2.5-4.4 BAAAA  So. California             

 

O: 27SEP2022 01:46:16  35.3N  118.6W ML=2.7  EMSC   CENTRAL CALIFORNIA

O: 27SEP2022 01:32:27  35.3N  118.6W Ml=2.1  EMSC   CENTRAL CALIFORNIA           

P: 24SEP2022 146916    35.6N  118.4W 2.5-4.4 BAAAA  So. California             

 

O: 27SEP2022 06:46:02  36.0N  119.9W Md=2.6  EMSC   CENTRAL CALIFORNIA           

P: 24SEP2022 146880    36.2N  120.8W 2.5-4.6 BAAAA  Central California         

 

O: 26SEP2022 17:07:38  39.8N  123.2W Md=2.5  EMSC   NORTHERN CALIFORNIA          

P: 27SEP2022 146949    40.0N  123.0W 2.5-4.8 AAAAA  Northern California        

 

O: 26SEP2022 23:08:21  40.4N  124.6W ML=2.5  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 29SEP2022 146950    40.3N  124.7W 2.5-4.7 BAAAA  Off Coast of No. Calif     

 

 

ALASKA

 

O: 26SEP2022 11:39:19  51.5N  178.5E mb=5.2  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 24SEP2022 146981    51.0N  178.0E 4.0-5.6 AAAAA  Rat Islands                

 

O: 26SEP2022 11:43:02  58.2N  142.7W ML=3.5  EMSC   GULF OF ALASKA               

P: 28SEP2022 146984    59.0N  138.0W 3.0-4.9 AABAA  Southeast Alaska           

 

O: 26SEP2022 23:54:37  61.6N  151.9W ML=3.0  EMSC   SOUTHERN ALASKA              

P: 26SEP2022 146989    61.3N  150.9W 3.2-5.1 AAAAA  Central Alaska             

 

O: 26SEP2022 19:51:34  69.4N  144.0W 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: 26SEP2022 18:06:46  47.9N  114.4W ML=2.9  EMSC   WESTERN MONTANA              

P: 27SEP2022 146941    47.7N  117.4W 2.0-3.9 AABAA  Montana/Idaho              

 

NEIC reported this earthquake of M 2.9 in Western Montana was felt with intensity II-III in the area(s) of Western Montana in Elmo, Dayton, Proctor, Kila, Kalispell.

 

O: 27SEP2022 04:13:17  31.7N  104.3W ML=2.7  EMSC   WESTERN TEXAS

O: 26SEP2022 11:24:51  31.6N  104.1W ML=2.0  EMSC   WESTERN TEXAS                

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

O: 26SEP2022 10:07:03  35.3N   97.9W ML=2.4  EMSC   OKLAHOMA                     

P: 25SEP2022 146921    36.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

 

HAWAII

 

O: 26SEP2022 21:42:54  19.2N  155.5W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24SEP2022 146833    19.3N  155.2W 3.0-4.5 AAAAA  Hawaii                     

 

M

EARTHQUAKES IN SVALBARD; HONDURAS AT NEW MOON

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 25, 2022

 

A series of moderate earthquakes occurred today in the region of Svalbard north of Norway. This was not reported felt in this remote area. It continues a swarm in the area which began with an M 4.3 on September 18, 2022. These may be aftershocks of an M 5.9 that occurred in the Svalbard region on July 18. Forecast 147002 had expected this enhanced seismicity was likely around September 22 within about 100 km  of today's epicenters. This activity occurred near local solar midnight with two within 10 minutes of the maximum new moon and was likely promoted by tidal energy associated with the new moon which occurred at the same time as noted in this and previous issues of this summary:

 

"The new moon arrived on September 25, 2022 at 21:54 UT. Longitudes which were at local solar noon at this time are located near 150W while those at local solar midnight are near 30E. These include areas of Southern Alaska and western U.S. and Canada in the west and eastern Europe including Greece and Turkey in the east. These areas may see significant increases in seismicity during the next week." (September 23-26, 2022)

 

This activity also precedes the arrival of Hurricane Fiona which is currently in the North Atlantic southwest of these epicenters near the Reykjanes Ridge south of Alaska. Expected activity with this hurricane was noted in this summary in previous issues as:

 

"Hurricane Fiona continued in the North Atlantic today west of the mid-Atlantic Ridge with winds up to 50 km. This storm did considerable damage and flooding in Nova Scotia and Newfoundland, Canada as it hit that region as the strongest storm in decades in the area.  As it moves past Nova Scotia the remnants are expected to track to the east reaching the Northern Mid-Atlantic Ridge in the next day or two near 54N 35W. The Reykjanes Ridge in this area is likely to see enhanced seismicity as Fiona passes this area." (September 24-26, 2022)

 

This activity is at the fifth node (72 degrees) from the M 6.9 in Taiwan of September 18 and may have been promoted by energy from that source.

 

O: 25SEP2022 14:59:02  77.8N    8.2E mb=4.4  EMSC   SVALBARD REGION

O: 25SEP2022 21:45:36  77.8N    8.1E Mw=4.0  EMSC   SVALBARD REGION

O: 25SEP2022 20:50:41  77.9N    7.9E mb=4.2  EMSC   SVALBARD REGION

O: 25SEP2022 14:01:40  78.0N    8.1E mb=4.5  EMSC   SVALBARD REGION

O: 25SEP2022 21:47:41  77.7N    8.9E mb=4.2  EMSC   SVALBARD REGION              

P: 22SEP2022 147002    79.0N    7.0E 4.0-5.8 BBAAA  Arctic Ocean Region        

 

The strongest earthquake in the world today was an M 5.1 in Guatemala/Honduras. These earthquake, like those in Svalbard, also occurred within minutes of the new moon. The M 5.1 is the strongest in northern Guatemala or Honduras since an M 5.4 on August 2, 2022; and M 5.2 on August 25, 2021 and prior to that an M 5.5 on April 10, 2013. Forecast 146844 had expected today's events were likely within about 50 km  around September 22. This activity was related to the passage of Hurricane Ian which was passing near this epicenter at the time of this activity and had been expected in this summary to increase seismicity in this region at this time:

 

“Hurricane Ian (TD 9) continued South of Cuba with winds up to 105 kts. It is expected to track to the west and north over the next several days reaching as a hurricane. It could make landfall near Tampa, Florida. The area is under mandatory evacuation orders preceding this hurricane which is the strongest to hit the Tampa area in decades. Enhanced seismicity may occur in the Caribbean area and central America while this storm is in the area.” (September 24-26. 2022)

 

O: 25SEP2022 21:28:16  15.8N   88.4W mb=4.7  EMSC   GUATEMALA

O: 25SEP2022 21:30:24  15.8N   88.4W Mw=5.1  EMSC   GUATEMALA                    

P: 22SEP2022 146844    16.0N   88.0W 3.5-5.1 BAAAA  Nicaragua                  

 

Another event which may have been activated by Tropical Cyclone activity today occurred as an M 4.2 in the region of Haiti. Hurricane Fiona passed over this epicenter several days ago as noted in this summary at the time:

 

"TS Fiona continued north of Dominican Republic with winds up to 115 kts. Major flooding and complete power outage occurred on Puerto Rico today. It is expected to track to the north and west over the next several days. It could help promote enhanced seismicity in the region of Puerto Rico and the Dominican Republic in the next several days." (September 20-22, 2022)

 

This is the strongest earthquake in Haiti since an M 4.4 on May 29, 2022 and was probably triggered by effects related to the passage of Hurricane Fiona. A series of aftershocks followed an M 5.3 on January 24, 2022. These appear to be aftershocks of the M 7.3 in the area of August 14, 2021. Forecast 146852 had expected today's event within about 100 km was likely around September 25. This epicenter, like that of an M 4.7 in the Central Mid-Atlantic today is at 144 degrees from the M 7.6 in New Guinea of September 10. It is also at this distance from the M 7.0 in Luzon, Philippines of July 27, 2022 and may have been promoted by energy from those sources.

 

O: 25SEP2022 09:13:03  18.5N   73.2W ML=4.2  EMSC   HAITI REGION                 

P: 25SEP2022 146852    19.0N   74.0W 3.4-5.1 AAAAA  Puerto Rico                

 

An M 5.1 also occurred in Mindanao and the Talaud Islands of Indonesia. It was followed by an M 4.5 aftershock. This occurred as Typhoon Noru was making landfall north of this in Luzon, Philippines as noted in this an previous issues of this summary:

 

"Super-Typhoon Noru (TD 18W) continued today over Luzon, Philippines with winds up to 130 kts. It is expected to track to the west and could help promote enhanced seismicity in the Philippines most likely around September 25-26." (September 24-26, 2022)

 

 

NEIC reported this earthquake of M 5.1 in Southern Mindanao, Philippines was felt with intensity II-III in the area(s) of Southern Mindanao, Philippines in Buayan. Forecast 146800 had expected this activity  was likely within about 50 km of this epicenter around September 23.

 

O: 26SEP2022 02:53:44   4.6N  126.5E ML=4.5  EMSC   KEPULAUAN TALAUD, INDONESIA

O: 25SEP2022 11:16:32   4.4N  126.1E Mw=5.1  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 23SEP2022 146800     4.0N  126.0E 4.0-5.4 AAAAA  Mindanao, Philippines       

 

An unusually large M 4.1 also occurred near local solar midnight in the Strait of Gibraltar. The last event of larger or equal magnitude in the Strait of Gibraltar was an M 4.9 on June 2 and prior to that an M 4.4 on January 1, 2022. Today's event occurred about 100 km north of the normal seismicity in this region. This epicenter is near the antipode of an M 4.8 (within about 100 km) in North Island, New Zealand of September 22, 2022. Forecast 146893 had expected today's event in the Strait of Gibraltar within about 100 km around September 26.

 

O: 26SEP2022 01:48:27  36.7N    4.4W mb=4.1  EMSC   STRAIT OF GIBRALTAR          

P: 26SEP2022 146893    37.0N    3.0W 3.5-5.2 AAAAA  Morocco/Spain              

 

The strongest earthquake in the U.S. or Canada today was an M 3.9 in the Andreanof Islands, Aleutians. The last earthquake in this area of larger magnitude than today's was an M 4.7 on September 2, 2022. Forecast 146971 had expected today's event within about 50 km was likely around September 26.

 

NEIC reported this earthquake of M 3.9 in the Andreanof Islands, Alaska was felt with intensity II-III in the area(s) of the Andreanof Islands, Alaska in Adak.

 

O: 25SEP2022 11:16:43  51.5N  177.0W mb=3.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 26SEP2022 146971    51.6N  177.6W 3.5-5.3 AAAAA  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: 25SEP2022 19:50:21  23.3N  121.5E ML=4.2  TAI    Hualien, Taiwan              

P: 26SEP2022 146869    23.0N  121.0E 4.0-5.4 AAAAA  Taiwan                     

 

CWB reported this earthquake was felt with intensity III in Taitung, II in Hualien and I in Nantou, Kaohsiung, Chiayi and Changhua Counties, Taiwan.

 

O: 25SEP2022 12:02:48  18.3N   94.3E mb=4.5  EMSC   MYANMAR                      

P: 28SEP2022 146823    19.0N   92.0E 4.0-5.4 BABAA  Andaman Islands            

 

O: 25SEP2022 15:25:15  27.8N   56.6E mb=5.1  EMSC   SOUTHERN IRAN                

O: 25SEP2022 23:04:25  27.6N   56.7E mb=4.3  EMSC   SOUTHERN IRAN

P: 23SEP2022 146867    27.0N   56.0E 3.5-5.1 AAAAA  So. Iran/Persian Gulf      

 

NEIC reported this earthquake of M 5.0 in Southern Iran was felt with intensity II-III in the area(s) of the United Arab Emirates at Ras Al Khaimah.

 

O: 25SEP2022 15:26:26  51.4N  142.8E mb=4.8  EMSC   SAKHALIN, RUSSIA             

P: 22SEP2022 146982    54.0N  143.0E 4.0-5.4 BCAAA  Sakhalin                    

 

NEIC reported this earthquake of M 4.8 in Sakhalin, Russia was felt with intensity II-III in the area(s) of Sakhalin, Russia in Nogliki.

 

INDONESIA AND PHILIPPINES

 

O: 26SEP2022 03:24:29   0.1S  129.9E ML=4.1  EMSC   HALMAHERA, INDONESIA         

P: 24SEP2022 146798     2.0N  129.0E 4.0-5.4 ACAAA  Halmahera                  

 

O: 26SEP2022 03:33:32   2.0N  122.7E mb=4.4  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 29SEP2022 146792     0.0N  122.0E 4.0-5.5 BBAAA  Celebes Sea                 

 

O: 25SEP2022 19:43:26   2.0S  119.0E mb=4.7  EMSC   MAKASSAR STRAIT, INDONESIA   

P: 29SEP2022 146792     0.0N  122.0E 4.0-5.5 BCCAA  Celebes Sea                

 

O: 25SEP2022 20:29:33   3.6S  140.0E ML=4.7  EMSC   PAPUA, INDONESIA             

P: 27SEP2022 146815     4.0S  140.0E 4.0-5.4 AAAAA  Papua New Guinea           

 

O: 26SEP2022 02:53:44   4.6N  126.5E ML=4.5  EMSC   KEPULAUAN TALAUD, INDONESIA

O: 25SEP2022 11:16:32   4.4N  126.1E Mw=5.1  EMSC   KEPULAUAN TALAUD, INDONESIA  

P: 23SEP2022 146800     4.0N  126.0E 4.0-5.4 AAAAA  Mindanao, Philippines      

 

O: 25SEP2022 12:13:38   6.6S  129.9E mb=4.6  EMSC   BANDA SEA                    

P: 27SEP2022 146822     7.0S  131.0E 4.0-5.4 AAAAA  West Irian, PNG            

 

 

CENTRAL AND SOUTH AMERICA

 

O: 25SEP2022 21:28:16  15.8N   88.4W mb=4.7  EMSC   GUATEMALA

O: 25SEP2022 21:30:24  15.8N   88.4W Mw=5.1  EMSC   GUATEMALA                    

P: 22SEP2022 146844    16.0N   88.0W 3.5-5.1 BAAAA  Nicaragua                  

 

O: 25SEP2022 08:37:10   8.8N   83.0W ML=4.0  EMSC   COSTA RICA                   

P: 29SEP2022 146796     8.0N   82.0W 3.5-5.2 BAAAA  Costa Rica                 

 

O: 26SEP2022 01:20:47   9.8S   74.7W ML=4.3  EMSC   CENTRAL PERU                 

P: 26SEP2022 147005    11.0S   74.0W 4.0-5.6 ABAAA  Central Peru               

 

O: 25SEP2022 11:38:17  15.0N   93.2W ML=4.2  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 24SEP2022 146827    15.0N   93.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 26SEP2022 03:41:59   3.4N   79.1W mb=4.3  EMSC   SOUTH OF PANAMA              

P: 25SEP2022 146795     5.0N   78.0W 4.0-5.6 ABAAA  Colombia                   

 

O: 25SEP2022 08:18:29  16.0N   94.1W ML=4.0  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 27SEP2022 146827    16.0N   94.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 25SEP2022 09:54:44  16.7N   99.7W ML=4.0  EMSC   GUERRERO, MEXICO

O: 25SEP2022 22:29:30  16.0N   98.4W ML=4.4  EMSC   OFFSHORE OAXACA, MEXICO      

P: 24SEP2022 146847    16.0N   98.0W 3.5-5.2 AAAAA  Oaxaca, Mexico              

 

O: 25SEP2022 11:19:15  16.9N  100.3W ML=4.0  EMSC   OFFSHORE GUERRERO, MEXICO    

P: 24SEP2022 146840    19.0N  101.0W 3.5-5.8 ACAAA  Michoacan, Mexico          

 

O: 26SEP2022 06:05:35  18.1N  103.2W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 25SEP2022 13:20:01  17.6N  103.3W ML=4.1  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 24SEP2022 146841    18.0N  103.0W 3.5-6.1 AAAAA  Michoacan, Mexico          

 

O: 25SEP2022 13:42:43  18.2N   68.0W Md=3.2  EMSC   MONA PASSAGE, DOMINICAN REPUBL

P: 29SEP2022 146851    18.0N   68.0W 3.4-5.1 BAAAA  Puerto Rico                

 

O: 25SEP2022 09:13:03  18.5N   73.2W ML=4.2  EMSC   HAITI REGION                 

P: 25SEP2022 146852    19.0N   74.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 26SEP2022 03:49:00  19.2N   66.5W ML=3.1  EMSC   PUERTO RICO REGION           

P: 30SEP2022 146855    20.0N   67.0W 3.0-4.5 BAAAA  Bahamas/No. Caribbean      

 

O: 25SEP2022 17:46:03  19.3N   71.5W ML=3.3  EMSC   DOMINICAN REPUBLIC           

P: 26SEP2022 146856    20.0N   71.0W 3.0-4.8 AAAAA  Bahamas/No. Caribbean      

 

O: 25SEP2022 17:34:04  19.4S   69.1W mb=4.1  EMSC   TARAPACA, CHILE              

P: 28SEP2022 147014    19.0S   69.0W 4.0-5.5 BAAAA  So. Peru/Bolivia           

 

O: 25SEP2022 17:02:30  23.3S   67.3W ML=4.1  EMSC   ANTOFAGASTA, CHILE           

P: 28SEP2022 147021    24.0S   67.0W 4.0-5.6 BAAAA  Argentina                  

 

O: 25SEP2022 18:37:45  25.4S   69.8W ML=4.0  EMSC   ANTOFAGASTA, CHILE           

P: 23SEP2022 147023    26.0S   71.0W 4.0-5.9 AAAAA  Coast Central Chile        

 

 

AFRICA AND EUROPE

 

O: 25SEP2022 14:59:02  77.8N    8.2E mb=4.4  EMSC   SVALBARD REGION

O: 25SEP2022 21:45:36  77.8N    8.1E Mw=4.0  EMSC   SVALBARD REGION

O: 25SEP2022 20:50:41  77.9N    7.9E mb=4.2  EMSC   SVALBARD REGION

O: 25SEP2022 14:01:40  78.0N    8.1E mb=4.5  EMSC   SVALBARD REGION

O: 25SEP2022 21:47:41  77.7N    8.9E mb=4.2  EMSC   SVALBARD REGION              

P: 22SEP2022 147002    79.0N    7.0E 4.0-5.8 BBAAA  Arctic Ocean Region        

 

O: 26SEP2022 01:48:27  36.7N    4.4W mb=4.1  EMSC   STRAIT OF GIBRALTAR          

P: 26SEP2022 146893    37.0N    3.0W 3.5-5.2 AAAAA  Morocco/Spain              

 

 

SOUTHWEST PACIFIC

 

O: 25SEP2022 11:36:56  11.9S  166.5E mb=4.5  EMSC   SANTA CRUZ ISLANDS           

P: 19SEP2022 146754    12.0S  167.0E 4.0-5.6 CAAAA  Vanuatu Islands            

 

O: 26SEP2022 01:18:27  19.4S  177.5W mb=4.8  EMSC   FIJI REGION                  

P: 28SEP2022 147030    20.0S  176.0W 4.0-5.5 AABAA  Tonga Islands              

 

O: 25SEP2022 16:32:45  25.6S  176.2W mb=4.8  EMSC   SOUTH OF FIJI ISLANDS        

P: 27SEP2022 147026    29.0S  177.0W 4.0-5.4 ACAAA  No. Kermadec Islands       

 

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

 

OCEAN RIDGES

 

O: 25SEP2022 23:25:37   4.6N   62.6E mb=4.5  EMSC   CARLSBERG RIDGE              

P: 16SEP2022 146524     6.0N   61.0E 4.0-5.4 CBBAA  Carlsberg Ridge            

 

O: 26SEP2022 01:27:12  20.8S   11.6W mb=4.9  EMSC   SOUTHERN MID-ATLANTIC RIDGE

O: 25SEP2022 18:37:04  20.6S   11.6W mb=4.7  EMSC   SOUTHERN MID-ATLANTIC RIDGE  

P: 27SEP2022 147012    20.0S   11.0W 4.0-5.5 AAAAA  So. Mid-Atlantic Ridge     

 

 

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: 25SEP2022 12:43:38  24.1N  127.1E mb=4.9  EMSC   SOUTHEAST OF RYUKYU ISLANDS  

O: 25SEP2022 19:05:11  25.0N  127.1E mb=4.9  EMSC   RYUKYU ISLANDS, JAPAN        

P: 23SEP2022 146866    25.0N  126.0E 4.0-5.4 AAAAA  Ryukyu Islands             

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 25SEP2022 15:21:07  32.5N  115.3W Ml=2.6  EMSC   BAJA CALIFORNIA, MEXICO      

P: 26SEP2022 146908    32.1N  116.4W 2.5-4.4 AAAAA  So. California             

 

NEIC reported this earthquake of M 2.6 in Baja California was felt with intensity II-III in the area(s) of Baja California in Mexicali and in Escondido, California.

 

O: 25SEP2022 12:51:31  34.0N  117.2W Ml=2.2  EMSC   GREATER LOS ANGELES AREA, CALI

P: 22SEP2022 146914    34.1N  117.4W 2.5-4.6 BAAAA  So. California             

 

O: 25SEP2022 11:18:53  36.6N  121.1W Md=2.6  EMSC   CENTRAL CALIFORNIA           

O: 26SEP2022 01:33:18  36.8N  121.1W Md=2.0  EMSC   CENTRAL CALIFORNIA           

P: 24SEP2022 146881    36.7N  121.4W 2.5-4.8 AAAAA  Central California         

 

NEIC reported this earthquake of M 2.7 in Central California was felt with intensity II-III in the area(s) of Central California in Los Banos.

 

O: 25SEP2022 14:47:25  37.7N  122.6W Md=2.2  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 22SEP2022 146882    37.9N  122.0W 2.5-4.5 BAAAA  Central California         

P: 28SEP2022 146882    37.7N  121.9W 2.5-4.5 BAAAA  Central California         

 

O: 25SEP2022 08:15:05  38.5N  122.3W Md=2.0  EMSC   NORTHERN CALIFORNIA

O: 26SEP2022 05:18:31  38.8N  122.7W Md=2.7  EMSC   NORTHERN CALIFORNIA

O: 25SEP2022 08:15:05  38.5N  122.3W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 22SEP2022 146883    38.9N  122.8W 2.5-4.6 BAAAA  Central California         

P: 30SEP2022 146883    38.7N  122.7W 2.5-4.6 BAAAA  Central California         

 

O: 25SEP2022 21:27:51  40.1N  122.7W Md=2.0  EMSC   NORTHERN CALIFORNIA          

P: 27SEP2022 146949    40.4N  122.2W 2.5-4.7 AAAAA  Northern California        

 

 

ALASKA

 

O: 25SEP2022 11:16:43  51.5N  177.0W mb=3.9  EMSC   ANDREANOF ISLANDS, ALEUTIAN IS

P: 26SEP2022 146971    51.6N  177.6W 3.5-5.3 AAAAA  Andreanoff Isls, Aleutians 

 

O: 25SEP2022 22:35:56  56.9N  154.9W ml=3.4  EMSC   KODIAK ISLAND REGION, ALASKA 

P: 21SEP2022 146969    55.7N  156.9W 3.5-4.9 ABBAA  Alaska Peninsula           

P: 27SEP2022 146969    54.7N  156.9W 3.5-4.9 ABBAA  Alaska Peninsula           

 

O: 26SEP2022 03:11:06  60.2N  151.4W ML=3.2  EMSC   KENAI PENINSULA, ALASKA      

P: 26SEP2022 146989    60.5N  151.5W 3.2-5.1 AAAAA  Central 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: 25SEP2022 12:48:59  31.7N  104.4W ML=2.0  EMSC   WESTERN TEXAS

O: 25SEP2022 09:10:24  31.9N  103.4W ML=2.1  EMSC   WESTERN TEXAS

O: 25SEP2022 14:06:39  32.1N  102.1W ML=2.4  EMSC   WESTERN TEXAS

O: 25SEP2022 11:09:09  31.7N  104.3W ML=2.2  EMSC   WESTERN TEXAS                

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

EASTERN U.S./CANADA

 

 

 

O: 23SEP2022 04:13:14  41.8N   81.5W MB=2.7  ECAN of Cleveland, OH   

O: 23SEP2022 04:15:46  41.7N   81.5W MB=2.3  ECAN of Cleveland, OH               

P: 24SEP2022 146953    41.8N   81.4W 2.0-4.1 AAAAA  Ohio/Lake Erie             

 

O: 25SEP2022 17:04:23  49.5N   65.7W MB=1.9  ECAN of Saint-Maxime-du-Mont-Louis, Q

P: 22SEP2022 146933    49.0N   66.0W 2.0-3.9 BAAAA  E. of Maine                

 

O: 24SEP2022 05:28:24  49.0N   67.9W MB=1.3  ECAN of Baie-Comeau, QC             

P: 22SEP2022 146933    49.0N   66.0W 2.0-3.9 AABAA  E. of Maine                

 

O: 23SEP2022 17:10:33  47.1N   76.7W MB=2.5  ECAN of Grand-Remous, QC            

P: 24SEP2022 146946    47.0N   76.0W 2.0-4.3 AAAAA  New York State             

 

O: 23SEP2022 10:15:24  42.9N   78.8W MB=2.1  ECAN of Buffalo, NY                 

P: 20SEP2022 146681    43.0N   78.0W 2.0-4.1 BAAAA  New York State              

 

O: 23SEP2022 04:57:57  45.1N   69.3W MB=1.8  ECAN of Bangor, ME   

O: 23SEP2022 04:57:29  45.1N   69.4W MB=1.1  ECAN of Bangor, ME   

O: 23SEP2022 04:25:52  45.1N   69.3W MB=1.9  ECAN of Bangor, ME                  

P: 22SEP2022 146938    44.4N   68.2W 2.0-4.1 AAAAA  Maine                      

 

O: 23SEP2022 04:20:39  45.7N   74.7W MB=1.4  ECAN of L'Orignal, ON               

P: 22SEP2022 146946    45.0N   74.0W 2.0-4.3 AAAAA  New York State             

 

 

HAWAII

 

O: 25SEP2022 10:09:39  19.3N  155.4W ML=3.0  EMSC   ISLAND OF HAWAII, HAWAII     

O: 25SEP2022 23:08:04  19.3N  155.5W ML=3.2  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24SEP2022 146833    19.3N  155.2W 3.0-4.5 AAAAA  Hawaii                     

 

O: 26SEP2022 01:56:18  19.5N  157.2W ML=3.0  EMSC   HAWAIIAN ISLANDS REGION      

P: 18SEP2022 146587    20.1N  156.1W 4.0-5.4 CAAAA  Hawaii area                

 

5.3 IN MAURITIUS AND REUNION, RELATED TO TS NEWTON and MEXICO EARTHQUAKES

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 24, 2022

 

The strongest earthquake in the world today was an M 5.3 in the South Indian Ocean near Mauritius and Reunion Islands. It was not reported felt in this remote area. It is at the antipode of Tropical Storm Newton (compare 20N and 20S and 114W and 66E for antipodality). It is also near the antipode of the M 7.6 and 6.8 in Michoacan, Mexico of September 19 and 21, 2022 and was probably promoted by energy from those sources. 

 

"TS    NEWTON   2022-09-25  00:00 UT  19.5N  114.4W  040 kts  west of Michoacan, Mexico

TS Newton (TD 15E) continued today west of Michoacan, Nexico  with winds up to 40 kts. It is expected to track to the west and may enhance aftershocks in the next several days in Michoacan and Colima, Mexico. It may have helped promote the M 6.8 aftershock in Michoacan today." (September 22-24, 2022)

 

This is the strongest earthquake within about 200 km of this epicenter in the South Indian Ocean since an M 5.4 on January 5, 2013 and prior to that an M 5.4 on April 16, 2006. The strongest earthquakes in this region in the past 30 years have been M 5.4's.  Forecast 147011 had expected this event about 300 km to the north of this epicenter was likely around September 25.

 

O: 24SEP2022 17:00:29  20.1S   66.6E Mw=5.3  EMSC   MAURITIUS - REUNION REGION   

P: 25SEP2022 147011    17.0S   67.0E 4.0-5.6 ACAAA  So. Indian Ocean           

 

An unusual earthquake of M 4.3 occurred today in the area of southern Cuba. It may have lightly felt at Media Luna, Niquero, Cuba. This event was probably promoted by energy associated with Hurricane Ian which was passing near this epicenter at the time of this earthquake. This is an unusual event. The last earthquake of M>=4.3 within about 150 km of this epicenter was an M 4.6 and M 4.3 on May 17-18, 2020. An M 6.8 hit near this epicenter on May 25, 1992. This may be a long-period aftershock of that event.  Forecast 146826 had expected enhanced seismicity in this region to the west of this epicenter was likely around September 22.

 

O: 24SEP2022 20:01:42  19.7N   77.9W mb=4.3  EMSC   CUBA REGION                  

P: 22SEP2022 146826    19.0N   81.0W 3.5-5.5 AACAA  Caribbean Sea              

 

A moderate earthquake of M 4.8 occurred off the coast of northern California today. NEIC reported it was felt with maximum intensity IV at Ferndale. It was also felt with intensity II-III in northern California at Petrolia, Rio Dell, Loleta, Fortuna, Hydesville and Scotia among others. The last earthquake within about 150 km of this epicenter off the coast of northern California with equal or greater magnitude was an M 6.2 on December 20, 2021.  This may be related to stresses related to the landfall of Hurricane Fiona in Canada today as noted in previous issues of this summary:

 

 

"Hurricane Fiona continued north of the Turks and Cacos Islands near Bermuda as a category 4 storm with winds up to 130 kts. It is expected to track to the north making landfall with the North American Continental slope and rise in the next day. This could help promote seismicity along the western edge of the North American Plate and may have helped trigger the M 7.6 mainshock of September 19 and the 6.8 aftershock in Mexico today.  The area of northern California and north could see enhanced seismicity at this time. Some enhanced seismicity may also occur in eastern U.S. and Canada as this storm moves north in the Atlantic." (September 22-24, 2022)

 

Forecast 146950 had expected today's event within about 10 km was likely at the end of September.

 

O: 24SEP2022 19:27:37  40.3N  124.8W Mw=4.8  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 29SEP2022 146950    40.3N  124.7W 2.5-4.7 BAAAA  Off Coast of No. Calif     

 

An earthquake of M 4.8 also occurred in Southern Alaska today. NEIC reported it was felt with intensity II-III in Southern Alaska in Glennallen, Valdez, Copper Center, Palmer, Glirdwood, Chugiak, Eagle River, Wasilla, Anchorage. This is an unusual earthquake for the current period. It is the strongest earthquake within about 200 km of this epicenter since an M 4.8 on January 25, 2021 and prior to that an M 5.3 on November 27, 2017. The last within about 150 km of  larger magnitude was an M 5.3 on August 25, 2004.  Forecasts 146730  and 146992 had expected activity within about 50 km of this epicenter was likely between September 19 and 28.

 

O: 24SEP2022 15:18:53  61.5N  145.6W mb=4.8  EMSC   SOUTHERN ALASKA              

P: 19SEP2022 146730    61.4N  146.5W 3.2-5.2 BAAAA  Central Alaska              

P: 28SEP2022 146992    63.2N  145.5W 3.2-5.3 BBAAA  Central 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: 24SEP2022 10:58:18  53.8N   88.2E mb=4.1  EMSC   SOUTHWESTERN SIBERIA, RUSSIA 

P: 21SEP2022 146983    50.0N   88.0E 3.0-4.4 BCAAA  So. Siberia                

 

O: 24SEP2022 07:32:05  23.3N  121.2E ML=4.2  EMSC   TAIWAN                       

O: 24SEP2022 07:32:05  23.3N  121.2E ML=4.2  TAI    Hualien, Taiwan              

P: 22SEP2022 146870    24.0N  121.0E 4.0-5.4 AAAAA  Taiwan                     

P: 26SEP2022 146869    23.0N  121.0E 4.0-5.4 AAAAA  Taiwan                      

 

CWB reported this earthquake was felt with intensity III in Hualien and Taitung, II in Nantou and I in Yunlin, and Chiayi Counties, Taiwan.

 

O: 25SEP2022 06:10:18  31.6N   57.3E ML=4.3  EMSC   EASTERN IRAN                 

P: 30SEP2022 146867    28.0N   56.0E 3.5-4.9 BCAAA  So. Iran/Persian Gulf      

 

O: 24SEP2022 14:00:16  33.3N   81.8E ML=4.0  EMSC   WESTERN XIZANG               

P: 25SEP2022 146928    30.0N   82.0E 3.8-5.6 ACAAA  Xizang                     

 

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

 

INDONESIA AND PHILIPPINES

 

O: 24SEP2022 13:33:45   2.5N  128.4E ML=4.0  EMSC   HALMAHERA, INDONESIA         

P: 24SEP2022 146798     2.0N  129.0E 4.0-5.4 AAAAA  Halmahera                  

 

O: 24SEP2022 21:11:41   4.1N  125.9E mb=4.5  EMSC   KEPULAUAN SANGIHE, INDONESIA 

P: 23SEP2022 146800     4.0N  126.0E 4.0-5.4 AAAAA  Mindanao, Philippines      

 

O: 24SEP2022 17:19:53   7.5S  121.8E ML=4.2  EMSC   FLORES SEA                   

P: 30SEP2022 146806     8.0S  121.0E 4.0-5.5 CAAAA  Flores Island area         

 

O: 24SEP2022 20:32:30   9.4S  114.5E mb=4.9  EMSC   SOUTH OF BALI, INDONESIA     

P: 23SEP2022 146816     9.0S  113.0E 4.0-5.6 AABAA  So. of Bali                

 

NEIC reported this earthquake of M 4.9 in Bali, Indonesia  was felt with intensity II-III in the area(s) of  Bali, Indonesia in Denpassar, Tabana, Karangasem and in Kuta. It was also felt in Gambiran, Java.

 

O: 24SEP2022 10:15:18  18.7N  145.7E mb=4.4  EMSC   PAGAN REG., N. MARIANA ISLANDS

P: 25SEP2022 146845    17.0N  147.0E 4.0-5.5 ABAAA  No. Marianas               

P: 30SEP2022 146845    19.0N  146.0E 4.0-5.4 CAAAA  No. Marianas               

 

 

CENTRAL AND SOUTH AMERICA

 

O: 24SEP2022 20:01:42  19.7N   77.9W mb=4.3  EMSC   CUBA REGION                  

P: 22SEP2022 146826    19.0N   81.0W 3.5-5.5 AACAA  Caribbean Sea              

 

O: 24SEP2022 08:39:23   3.0S   79.9W ML=4.0  EMSC   NEAR COAST OF ECUADOR        

P: 29SEP2022 146805     4.0S   80.0W 4.0-5.5 BAAAA  Ecuador                     

 

O: 24SEP2022 14:39:09  12.0N   86.8W mb=4.2  EMSC   NICARAGUA                    

O: 25SEP2022 04:19:21  12.3N   87.4W mb=4.5  EMSC   NEAR COAST OF NICARAGUA

P: 22SEP2022 146843    12.0N   86.0W 3.5-5.2 AAAAA  Nicaragua                   

 

 

NEIC reported this earthquake of M 4.2 in Nicaragua was felt with intensity II-III in the area(s) of Nicaragua in Ciudad Sandino, Managua.

NEIC reported this earthquake of M 4.6 in El Salvador was felt with intensity II-III in the area(s) of El Salvador in San Salvador.

 

O: 25SEP2022 01:29:15  14.9N   93.6W mb=4.6  EMSC   OFFSHORE CHIAPAS, MEXICO     

P: 24SEP2022 146827    15.0N   93.0W 3.5-5.1 AAAAA  Chiapas, Mexico            

 

O: 24SEP2022 08:37:53  15.2N   94.6W ML=4.3  EMSC   OFF COAST OF OAXACA, MEXICO

O: 24SEP2022 22:19:37  15.5N   96.4W ML=4.0  EMSC   OFFSHORE OAXACA, MEXICO      

P: 29SEP2022 146848    16.0N   96.0W 3.5-5.3 BAAAA  Oaxaca, Mexico             

 

O: 24SEP2022 15:27:22  17.2N   98.9W mb=4.6  EMSC   GUERRERO, MEXICO              

P: 24SEP2022 146847    16.0N   98.0W 3.5-5.2 ABAAA  Oaxaca, Mexico             

 

NEIC reported this earthquake of M 4.6 in Guerrero, Mexico was felt with intensity II-III in the area(s) of Guerero, Mexico in Tlalnepantla.

 

O: 25SEP2022 03:36:13  17.3N   94.8W ML=4.0  EMSC   VERACRUZ, MEXICO             

O: 24SEP2022 11:06:58  17.5N   95.0W ML=4.1  EMSC   VERACRUZ, MEXICO

P: 25SEP2022 146849    17.0N   96.0W 3.5-5.4 AAAAA  Oaxaca, Mexico             

 

O: 24SEP2022 18:46:03  17.5N  101.1W ML=4.0  EMSC   GUERRERO, MEXICO             

O: 25SEP2022 05:03:39  17.7N  101.6W ML=4.0  EMSC   GUERRERO, MEXICO

P: 21SEP2022 146840    17.0N  101.0W 3.5-5.4 BAAAA  Michoacan, Mexico          

P: 24SEP2022 146840    19.0N  101.0W 3.5-5.8 ABAAA  Michoacan, Mexico           

 

O: 24SEP2022 10:05:47  18.1N  103.3W ML=4.5  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 24SEP2022 11:00:42  18.1N  103.5W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 25SEP2022 04:45:12  18.1N  103.2W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 24SEP2022 146841    18.0N  103.0W 3.5-6.1 AAAAA  Michoacan, Mexico          

 

O: 24SEP2022 20:01:42  19.7N   77.9W mb=4.3  EMSC   CUBA REGION                  

P: 22SEP2022 146826    19.0N   81.0W 3.5-5.5 AACAA  Caribbean Sea              

 

O: 24SEP2022 10:21:20  24.6S   69.4W ML=4.0  EMSC   ANTOFAGASTA, CHILE           

P: 26SEP2022 147024    23.0S   69.0W 4.0-5.6 ABAAA  Coast No. Chile            

 

O: 24SEP2022 08:02:28  33.7S   72.6W mb=4.6  EMSC   OFFSHORE VALPARAISO, CHILE   

P: 29SEP2022 147033    34.0S   73.0W 4.0-5.8 BAAAA  Central Chile              

 

NEIC reported this earthquake of M 4.6 in Chile was felt with intensity II-III in the area(s) of Chile in Santiago.

 

AFRICA AND EUROPE

 

O: 25SEP2022 06:18:00  46.0N    6.9E ML=3.9  EMSC   FRANCE                        

P: 18SEP2022 146660    46.0N    8.0E 3.0-5.3 CAAAA  Austria                    

 

NEIC reported this earthquake of M 3.3-3.9 in France was felt with intensity II-III in the area(s) of Francein Chamonix-Mont=Blanc and Vallorcine, Rhone-Alpes.

 

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

 

SOUTHWEST PACIFIC

 

O: 24SEP2022 12:54:30  10.7S  162.2E mb=4.5  EMSC   SOLOMON ISLANDS              

P: 23SEP2022 147019    11.0S  161.0E 4.0-5.5 AAAAA  Vanuatu Islands            

P: 26SEP2022 147009    10.0S  161.0E 4.0-5.4 AAAAA  No. of Santa Cruz Islands  

 

O: 24SEP2022 19:38:52  14.9S  167.0E Mw=5.0  EMSC   VANUATU                      

P: 24SEP2022 147020    15.0S  168.0E 4.0-5.4 AAAAA  Vanuatu Islands             

P: 26SEP2022 147020    14.0S  167.0E 4.0-5.4 AAAAA  Vanuatu Islands            

 

NEIC reported this earthquake of M 5.0 in Vanuatu was felt with intensity II-III in the area(s) of Vanuatu at Luganville, Sanma.

 

O: 25SEP2022 05:01:34  20.4S  177.3W mb=4.1  EMSC   FIJI REGION                  

P: 28SEP2022 147030    20.0S  176.0W 4.0-5.5 BAAAA  Tonga Islands              

 

OCEAN RIDGES

 

O: 24SEP2022 21:59:57   1.3S   14.8W mb=4.7  EMSC   NORTH OF ASCENSION ISLAND    

P: 24SEP2022 146803     1.0S   16.0W 4.0-5.8 AAAAA  Central Mid-Atlantic       

 

O: 24SEP2022 17:00:29  20.1S   66.6E Mw=5.3  EMSC   MAURITIUS - REUNION REGION   

P: 25SEP2022 147011    17.0S   67.0E 4.0-5.6 ACAAA  So. Indian Ocean           

 

O: 24SEP2022 21:45:21  59.0S   25.7W mb=5.0  EMSC   SOUTH SANDWICH ISLANDS REGION

P: 24SEP2022 147046    56.0S   26.0W 4.0-5.6 ACAAA  So. Sandwich Islands       

P: 29SEP2022 147046    57.0S   25.0W 4.0-6.1 BBAAA  So. Sandwich Islands       

 

 

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: 24SEP2022 10:11:30  36.8N  141.2E ML=4.0  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 26SEP2022 146903    36.0N  141.0E 4.0-5.6 AAAAA  Off East Coast Honshu      

P: 26SEP2022 146903    37.0N  142.0E 4.0-5.4 AAAAA  Off East Coast Honshu      

 

O: 24SEP2022 21:23:30  37.5N  137.3E ML=4.0  EMSC   NEAR WEST COAST OF HONSHU, JAP

P: 25SEP2022 146898    38.0N  135.0E 3.5-4.9 AABAA  No. Honshu, Japan          

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 25SEP2022 05:53:31  33.5N  116.5W Ml=2.0  EMSC   SOUTHERN CALIFORNIA          

P: 23SEP2022 146908    33.1N  116.2W 2.5-4.4 AAAAA  So. California             

 

O: 24SEP2022 16:40:11  34.5N  119.3W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 22SEP2022 146913    34.3N  118.5W 2.5-4.6 AAAAA  So. California             

 

O: 25SEP2022 04:11:40  35.5N  118.4W Ml=2.2  EMSC   CENTRAL CALIFORNIA           

P: 24SEP2022 146916    35.6N  118.4W 2.5-4.4 AAAAA  So. California             

 

O: 25SEP2022 00:55:37  36.6N  121.2W Md=2.2  EMSC   CENTRAL CALIFORNIA

O: 24SEP2022 17:59:03  36.2N  121.0W Md=2.2  EMSC   CENTRAL CALIFORNIA           

P: 24SEP2022 146880    36.2N  120.8W 2.5-4.6 AAAAA  Central California         

 

O: 24SEP2022 19:20:07  38.5N  119.5W Md=2.2  EMSC   CENTRAL CALIFORNIA           

P: 28SEP2022 146878    38.8N  119.6W 2.5-4.8 BAAAA  California/Nevada area     

 

O: 24SEP2022 19:27:37  40.3N  124.8W Mw=4.8  EMSC   OFFSHORE NORTHERN CALIFORNIA 

P: 29SEP2022 146950    40.3N  124.7W 2.5-4.7 BAAAA  Off Coast of No. Calif     

 

ALASKA

 

O: 24SEP2022 15:18:53  61.5N  145.6W mb=4.8  EMSC   SOUTHERN ALASKA              

P: 19SEP2022 146730    61.4N  146.5W 3.2-5.2 BAAAA  Central Alaska             

P: 28SEP2022 146992    63.2N  145.5W 3.2-5.3 BBAAA  Central Alaska             

 

O: 24SEP2022 20:15:01  63.2N  150.7W ML=3.3  EMSC   CENTRAL ALASKA               

P: 24SEP2022 146991    64.3N  151.0W 3.2-5.0 ABAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 24SEP2022 11:58:57  45.4N  123.9W Ml=2.5  EMSC   OREGON                       

P: 22SEP2022 146956    45.3N  121.7W 2.0-4.1 AABAA  Oregon state, U.S.         

 

NEIC reported this earthquake of M 2.5 in Oregon was felt with intensity II-III in the area(s) of Oregon in Tillamook and Rockaway Beach.

 

ROCKY MOUNTAINS REGION

 

O: 24SEP2022 23:44:40  31.6N  104.6W ML=2.1  EMSC   WESTERN TEXAS

O: 24SEP2022 18:51:13  31.7N  104.5W ML=2.4  EMSC   WESTERN TEXAS                

P: 24SEP2022 146906    32.5N  104.6W 2.0-3.9 AAAAA  SW U.S.A                   

 

O: 24SEP2022 18:32:16  38.4N  112.8W Ml=2.2  EMSC   UTAH                         

P: 29SEP2022 146926    39.8N  112.7W 2.0-4.0 ABAAA  Utah 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.

 

STRONG EARTHQUAKES FELT IN CHILE AND SUMATRA

 

EARTHQUAKE SUMMARY FOR SEPTEMBER 23, 2022

 

Two strong earthquakes were felt in the world today. These occurred in Sumatra, Indonesia (M 6.1-6.4) and in south-central Chile in the Los Lagos area.  The Chilean event of M 6.1 was felt in the Los Lagos area of Central Chile. NEIC reported it was felt with maximum intensity in Los Lagos at Castro, Puerto Varas and II-III in Ancud, Puerto Montt, Osorno, Valdivia, Baritoche Rio, Temuco, Arucania, Chile. GUC reported this earthquake was felt with intensity   V  in  Los Lagos at Ancud, Calbuco, Castro, Chaiten, Curaco de Velez, Frutillar, Maullin, Puerto Montt, Queilen, Quernchi, Quinchao, San Juan de al Costa, Bahia Mansa and IV in Quellon, Purranque, Puerto Varas, Hualaihue, Dalcahur, Chonchi, in Lo Rios with V in Valdivia III in Rio Bueno and in Aysen at Raul Marin Balmaceda, Chile. An earthquake of M 6.7 occurred about 250 km to the north of today's epicenter in Los Lagos on December 27, 2020 but the last event within about 200 km of today's epicenter of equal or larger magnitude than M 6.1 was an 6.4 on August 22, 1999 about about 150 km northeast of today's epicenter. Forecast 147034 had expected today's event was likely in this area around September 23. This epicenter is located at the third node (120 degrees) from the earthquake of M 7.6 of September 10, 2022 and was probably promoted by energy from that source.

 

O: 23SEP2022 22:53:26  41.3S   75.6W Mw=6.1  EMSC   OFF COAST OF LOS LAGOS, CHILE

O: 23SEP2022 22:53     41.4S   75.5W mb=6.0  GUC    Los Lagos at Ancud, Calbuco, C

P: 23SEP2022 147034    39.0S   73.0W 4.0-5.5 ACBAA  Central Chile              

 

An earthquake of M 6.2 was also widely felt in the area of Northern Sumatra and Malaysia today. NEIC reported intensity II-III in Banda Aceh, Indonesia, in Malaysia at Georgetown Pulau, Butterworth, Perai, and in Thailand at Phuket and Kathu.

BMG reported this earthquake with M 6.4 at 3.8N 96E. They reported maximum intensity IV in Aceh Selatan and Nagan Raya, Meulaboh, III in  Aceh Besar, Banda Aceh, Takengon, Bener Meriah, Simeulue and II in Pidie, Idi, Bireun, Aceh Tamiang, and Lansa. A foreshock about 100 km north of the M 6.4 occurred about half an hour prior to the mainshock. BMG reported it was felt with intensity IV in Takengon, Bener Meriah, and III in Idi, Reyeuk-Aceh, Timur and Aceh Barat Daya. While an M 5.9 occurred about 100 km west of this epicenter on March 5, 2022, the last earthquake within about 250 km of this epicenter with M>=6.2 per NEIC data was an 6.2 about 200 km southeast of today's epicenter on January 7, 2020 and an M 6.5 about 200 km north of this on December 6, 2016. The last definitely within the 200 km  radius zone was an M 6.4 on July 25, 2012. This followed a major event of M 8.6 about 300 km southwest of today's epicenter on April 11, 2012. Forecast 146801 had expected seismic activation in this region was likely to the southwest of today's epicenter around September 23. This epicenter is at 51.4 degrees (node 7) from the M 7.6 in Papua New Guinea of September 10, 2022 and near 144 degrees from the M 7.6 in Mexico of September 19, 2022 and was probably promoted by energy from those sources.

 

O: 23SEP2022 20:52:58   4.0N   96.1E Mw=6.2  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 23SEP2022 146801     3.0N   94.0E 4.0-5.4 AABAA  Nicobar Islands            

 

Moderate aftershocks also continued in Michoacan, Mexico following mainshocks of M 7.6 on September 19 and M 6.8 on September 21. Among these was an M 5.2 felt with intensity IV in Armeria, Colima, Mexico and II-III in Colima, Manzanillo, in Jalisco at Guzman, Ajijio, Ocotlan and in Michoacan at Lazaro Cardenas and Zamora among others.  This event occurred with minutes of local solar noon and was probably promoted by Solar Flare Effects and/or tidal stresses which maximize near this hour. Seiche was also reported by the press to have occurred in the Southwestern U.S. in a cave following the M 7.6 in Mexico of September 19 but not after the M 6.8 aftershock of September 21. It was referred to as a "desert tsunami" an unusual terminology for a normal event. Following the M 7.6 in Lander, California in June, 1992, for example, seiche was widely observed in swimming pools in Colorado more than 2000 from the epicenter. Surface waves are largely responsible for the displacement of water following major earthquakes which result in sloshing of the water far from the earthquake epicenter.

 

Forecasts 146830 and 146841 had expected today's activity in Jalisco and Michoacan, Mexico was likely around September 23-24.

 

O: 23SEP2022 11:42:46  18.2N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 23SEP2022 18:26:00  18.5N  103.7W Mw=5.2  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 23SEP2022 07:57:19  18.2N  103.1W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 23SEP2022 146830    18.0N  104.0W 3.5-6.4 AAAAA  Coast of Jalisco, Mexico   

P: 24SEP2022 146841    18.0N  103.0W 3.5-6.1 AAAAA  Michoacan, Mexico          

 

A moderately strong solar flare of M1.7 (#4130) occurred today maximizing around 18:10-18:24 UT according to data from SWPC. This is the strongest solar flare since  The aftershock in Michoacan occurred near the maximum of this flare and may have been promoted by SFE from it. An M 3.5 also occurred off the coast of Oregon within a minute of the Michoacan event and may also have been promoted by SFE. Other moderate earthquakes closely associated with flare 4130 occurred in Western Honshu (M 4.0); Fiji (M 5.3); northern Peru (M 4.6) and Argentina (M 4.2). An M 6.2 followed the flare two hours later in Northern Sumatra at the same time as an M 5.4 in the Banda Sea. These may also have been promoted by SFE associated with flare 4130. This is the strongest solar flare in the past week - since an M1.9 on September 17, 2022 (#2380).  It occurred with SWPC parameters:

 

SOLAR FLARE ACTIVITY

 

Flare #    START  MAX       END    CLASS     DATE    Flux (Jm-2)

#-------------------------------------------------------------------------------

 

4130       1748   1810      1841   M1.7      (September 23, 2022)   3.8E-02  

 

 

The strongest earthquake in the U.S. or Canada today was an M 3.4-3.8 in Hawaii. NEIC reported this earthquake of M 3.5-3.8 in Hawaii was felt with intensity II-III in the area(s) of Hawaii in Hawaii National Park, Volcano, Mountain View, Hilo, Keaau and Papaikou. This continues enhanced seismicity in the area following the earthquakes in  Mexico of September 19 and 21. Forecast 146833 had expected this event within about 25 km was likely around September 24.

 

O: 24SEP2022 06:43:50  19.3N  155.4W ML=3.8  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24SEP2022 146833    19.3N  155.2W 3.0-4.5 AAAAA  Hawaii                     

 

An unusual earthquake of M 2.6 also occurred today in the region of Newfoundland, Canada. This occurred as Hurricane Fiona passed near this epicenter as noted in this and previous issues of this summary as:

 

"Hurricane Fiona continued  over Nova Scotia today with winds up to 100 kts. It is expected to track to the north making landfall with Nova Scotia today. This appears to be one of the strongest storms to hit Nova Scotia in recent years. This could help promote seismicity along the western edge of the North American Plate.  The area of northern California and north could see enhanced seismicity at this time. Some enhanced seismicity may also occur in eastern U.S. and Canada as this storm moves north in the Atlantic." (September 23-24, 2022)

 

It is likely that this earthquake was promoted by energy associated with the passage of Hurricane Fiona.

 

O: 22SEP2022 21:12:59  48.4N   57.5W MB=2.6  ECAN of Corner Brook, NL            

 

 

 

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: 23SEP2022 15:59:22  24.8N  121.9E ML=4.0  TAI    Hualien, Taiwan              

P: 22SEP2022 146870    24.0N  121.0E 4.0-5.4 AAAAA  Taiwan                     

 

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

 

O: 23SEP2022 14:32:28  33.7N   82.0E mb=4.3  EMSC   WESTERN XIZANG               

P: 25SEP2022 146928    30.0N   82.0E 3.8-5.6 ACAAA  Xizang                     

 

O: 23SEP2022 23:33:09  36.5N   71.2E mb=4.1  EMSC   HINDU KUSH REGION, AFGHANISTAN

P: 22SEP2022 146889    37.0N   72.0E 3.8-5.2 AAAAA  Hindu Kush/Pakistan        

 

O: 24SEP2022 02:13:11  50.0N   90.0E mb=4.3  EMSC   SOUTHWESTERN SIBERIA, RUSSIA 

P: 21SEP2022 146983    50.0N   88.0E 3.0-4.4 BABAA  So. Siberia                 

 

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

 

INDONESIA AND PHILIPPINES

 

O: 23SEP2022 16:12:52   0.1S  126.2E ML=4.1  EMSC   MOLUCCA SEA                  

P: 24SEP2022 146804     1.0S  127.0E 4.0-5.4 AAAAA  Ceram area                  

 

O: 23SEP2022 09:50:17   0.2N  123.6E mb=4.9  EMSC   MINAHASA, SULAWESI, INDONESIA

P: 27SEP2022 146800     0.0N  124.0E 4.0-5.4 BAAAA  Mindanao, Philippines      

 

O: 23SEP2022 20:52:58   4.0N   96.1E Mw=6.2  EMSC   NORTHERN SUMATRA, INDONESIA  

P: 23SEP2022 146801     3.0N   94.0E 4.0-5.4 AABAA  Nicobar Islands            

 

O: 23SEP2022 21:11:51   5.2S  125.7E ML=4.6  EMSC   BANDA SEA

O: 23SEP2022 21:20:08   5.2S  125.7E mb=4.6  EMSC   BANDA SEA

O: 23SEP2022 21:39:25   5.2S  125.6E ML=4.4  EMSC   BANDA SEA

O: 23SEP2022 21:52:11   5.3S  125.7E ML=4.3  EMSC   BANDA SEA

O: 23SEP2022 20:51:25   5.2S  125.6E Mw=5.4  EMSC   BANDA SEA                    

P: 27SEP2022 146804     3.0S  126.0E 4.0-5.6 BCAAA  Ceram area                 

 

O: 23SEP2022 12:34:27   6.0S  148.7E Mw=5.4  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 22SEP2022 146811     6.0S  148.0E 4.0-5.5 AAAAA  New Ireland                

 

O: 23SEP2022 15:22:45   6.1S  153.7E mb=4.7  EMSC   NEW BRITAIN REGION, P.N.G.   

P: 25SEP2022 146810     5.0S  153.0E 4.0-5.4 ABAAA  New Britain                

 

O: 23SEP2022 13:36:50   7.7S  127.7E ML=4.2  EMSC   KEPULAUAN BARAT DAYA, INDONESIA

O: 23SEP2022 07:19:15   7.7S  127.6E mb=4.3  EMSC   KEPULAUAN BARAT DAYA, INDONESI

P: 17SEP2022 146537     7.0S  128.0E 4.0-5.5 CAAAA  Banda Sea                  

 

 

CENTRAL AND SOUTH AMERICA

 

O: 23SEP2022 11:42:46  18.2N  103.3W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 23SEP2022 18:26:00  18.5N  103.7W Mw=5.2  EMSC   OFFSHORE MICHOACAN, MEXICO

O: 23SEP2022 07:57:19  18.2N  103.1W ML=4.0  EMSC   OFFSHORE MICHOACAN, MEXICO   

P: 23SEP2022 146830    18.0N  104.0W 3.5-6.4 AAAAA  Coast of Jalisco, Mexico   

P: 24SEP2022 146841    18.0N  103.0W 3.5-6.1 AAAAA  Michoacan, Mexico          

 

O: 23SEP2022 23:44:44   1.8S   80.6W mb=4.3  EMSC   NEAR COAST OF ECUADOR        

P: 22SEP2022 146805     1.0S   81.0W 4.0-5.8 AAAAA  Ecuador                    

 

O: 23SEP2022 17:58:54   8.6S   80.3W mb=4.6  EMSC   OFF COAST OF NORTHERN PERU   

P: 28SEP2022 146813     9.0S   80.0W 4.0-5.6 BAAAA  No. Peru                   

 

O: 24SEP2022 06:58:29  13.1N   88.8W mb=4.6  EMSC   OFFSHORE EL SALVADOR         

P: 25SEP2022 146844    14.0N   88.0W 3.5-5.3 AAAAA  Nicaragua                  

 

O: 24SEP2022 00:14:38  13.3N   89.5W mb=4.1  EMSC   OFFSHORE EL SALVADOR         

P: 27SEP2022 146832    14.0N   90.0W 3.5-5.5 BAAAA  Guatemala                  

 

NEIC reported this earthquake of M 4.1 in El Salvador was felt with intensity II-III in the area(s) of El Salvador in San Salvador.

 

O: 23SEP2022 07:06:50  15.4N   96.5W ML=4.1  EMSC   OFFSHORE OAXACA, MEXICO      

P: 25SEP2022 146849    17.0N   96.0W 3.5-5.4 ABAAA  Oaxaca, Mexico             

 

O: 23SEP2022 16:42:06  18.6N   66.4W Md=3.0  EMSC   PUERTO RICO REGION           

P: 21SEP2022 146851    18.0N   66.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 23SEP2022 21:00:45  18.6N   73.7W ML=3.5  EMSC   HAITI REGION                 

P: 25SEP2022 146852    19.0N   74.0W 3.4-5.1 AAAAA  Puerto Rico                

 

O: 24SEP2022 05:09:00  19.0N   64.4W ML=3.0  EMSC   VIRGIN ISLANDS REGION        

P: 22SEP2022 146855    20.0N   65.0W 3.0-4.4 AAAAA  Bahamas/No. Caribbean      

P: 24SEP2022 146835    18.0N   64.0W 3.0-5.0 AAAAA  Leeward Islands            

 

O: 23SEP2022 17:48:17  22.2S   66.1W ML=4.2  EMSC   JUJUY, ARGENTINA             

O: 24SEP2022 05:57:44  24.0S   66.9W mb=4.2  EMSC   JUJUY, ARGENTINA

O: 23SEP2022 07:49:15  23.5S   67.5W mb=4.5  EMSC   ANTOFAGASTA, CHILE           

P: 22SEP2022 147021    23.0S   66.0W 4.0-5.6 AABAA  Argentina                  

 

O: 23SEP2022 20:18:23  25.0N  105.2W ML=4.1  EMSC   DURANGO, MEXICO              

P: 30SEP2022 146858    24.0N  109.0W 3.5-5.0 CACAA  Gulf of California         

 

O: 23SEP2022 20:17:03  29.0S   71.6W mb=4.9  EMSC   OFFSHORE ATACAMA, CHILE      

P: 23SEP2022 147035    30.0S   70.0W 4.0-5.7 AAAAA  Coast Central Chile        

 

 

O: 23SEP2022 22:53:26  41.3S   75.6W Mw=6.1  EMSC   OFF COAST OF LOS LAGOS, CHILE

O: 23SEP2022 22:53     41.4S   75.5W mb=6.0  GUC    Los Lagos at Ancud, Calbuco, C

P: 23SEP2022 147034    39.0S   73.0W 4.0-5.5 ACBAA  Central Chile              

 

 

AFRICA AND EUROPE

 

O: 23SEP2022 21:02:51  23.6S   28.2E ML=3.3  EMSC   SOUTH AFRICA                 

P: 14SEP2022 146763    27.0S   27.0E 3.0-4.4 CCAAA  Rep. South Africa          

 

O: 23SEP2022 16:22:54  36.8N    7.3E mb=3.9  EMSC   NORTHERN ALGERIA             

P: 28SEP2022 146927    37.0N    4.0E 3.0-4.7 BACAA  Western Mediterranean      

 

O: 24SEP2022 04:47:31  77.5N    7.4E mb=4.2  EMSC   SVALBARD REGION              

P: 22SEP2022 147002    79.0N    7.0E 4.0-5.8 ABAAA  Arctic Ocean Region        

 

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

 

SOUTHWEST PACIFIC

 

 

O: 23SEP2022 16:06:05  13.2S  167.2E mb=4.9  EMSC   VANUATU                      

P: 26SEP2022 147020    14.0S  167.0E 4.0-5.4 BAAAA  Vanuatu Islands            

 

O: 23SEP2022 19:03:01  21.5S  179.3W Mw=5.3  EMSC   FIJI REGION                  

P: 25SEP2022 147030    21.0S  179.0W 4.0-5.4 AAAAA  Tonga Islands              

 

OCEAN RIDGES

 

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

 

 

ZEALANDIA AND AUSTRALIA REGION

 

O: 23SEP2022 19:05:12  34.0S  178.1E ML=4.3  EMSC   SOUTH OF KERMADEC ISLANDS    

P: 23SEP2022 147037    37.0S  178.0E 3.0-4.7 ACAAA  North Island, N.Z.         

 

JAPAN AND KURIL ISLANDS

 

O: 24SEP2022 03:36:09  35.4N  135.4E mb=4.1  EMSC   WESTERN HONSHU, JAPAN

O: 23SEP2022 18:34:30  34.8N  135.3E ML=4.0  EMSC   NEAR S. COAST OF WESTERN HONSH

P: 24SEP2022 146885    34.0N  137.0E 3.5-5.0 ABBAA  Central/So. Honshu Japan   

 

O: 24SEP2022 01:00:18  37.9N  141.8E mb=4.6  EMSC   NEAR EAST COAST OF HONSHU, JAP

P: 26SEP2022 146903    37.0N  142.0E 4.0-5.4 AAAAA  Off East Coast Honshu      

 

O: 24SEP2022 06:16:52  42.6N  143.2E mb=4.4  EMSC   HOKKAIDO, JAPAN REGION       

P: 20SEP2022 146668    44.0N  142.0E 3.5-5.4 BBAAA  Hokkaido, Japan            

 

O: 23SEP2022 07:08:57  49.7N  156.0E mb=4.6  EMSC   KURIL ISLANDS                

P: 20SEP2022 146678    49.0N  156.0E 3.5-5.6 BAAAA  NE Pacific                 

P: 24SEP2022 146943    49.0N  155.0E 3.5-5.8 AAAAA  NE Pacific                 

 

U.S./CANADA*

 

WESTERN U.S./CANADA

 

CALIFORNIA

 

O: 23SEP2022 21:04:52  31.4N  115.5W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO

O: 23SEP2022 20:35:43  31.4N  115.7W ML=3.4  EMSC   BAJA CALIFORNIA, MEXICO      

P: 26SEP2022 146908    32.1N  116.4W 2.5-4.4 BAAAA  So. California             

 

O: 23SEP2022 10:41:19  33.0N  116.3W Ml=2.1  EMSC   SOUTHERN CALIFORNIA          

P: 23SEP2022 146908    33.1N  116.2W 2.5-4.4 AAAAA  So. California             

 

O: 23SEP2022 13:37:02  35.5N  118.3W Ml=2.1  EMSC   CENTRAL CALIFORNIA           

P: 24SEP2022 146916    35.6N  118.4W 2.5-4.4 AAAAA  So. California             

 

O: 24SEP2022 04:47:05  38.2N  117.8W ml=2.2  EMSC   NEVADA                       

P: 26SEP2022 146876    37.8N  118.4W 2.5-4.4 AAAAA  California/Nevada area     

 

O: 23SEP2022 13:04:07  39.3N  123.0W Md=2.1  EMSC   NORTHERN CALIFORNIA          

P: 23SEP2022 146884    39.2N  123.1W 2.5-4.7 AAAAA  Central California         

 

 

ALASKA

 

O: 23SEP2022 12:54:20  52.0N  178.5E ML=3.0  EMSC   RAT ISLANDS, ALEUTIAN ISLANDS

P: 24SEP2022 146981    51.0N  178.0E 4.0-5.6 AAAAA  Rat Islands                

 

O: 23SEP2022 10:20:58  57.5N  154.2W ML=3.6  EMSC   KODIAK ISLAND REGION, ALASKA 

P: 24SEP2022 146989    60.3N  153.0W 3.2-5.1 ACAAA  Central Alaska             

 

O: 24SEP2022 06:13:50  63.2N  150.8W ML=3.2  EMSC   CENTRAL ALASKA

O: 23SEP2022 07:07:58  62.9N  149.7W ML=3.2  EMSC   CENTRAL ALASKA               

P: 24SEP2022 146991    64.3N  151.0W 3.2-5.0 ABAAA  Central Alaska             

 

PACIFIC NORTHWESTERN U.S./WESTERN CANADA

 

O: 23SEP2022 18:26:46  43.7N  128.6W ML=3.4  EMSC   OFF COAST OF OREGON          

P: 24SEP2022 146952    44.1N  128.8W 3.0-4.5 AAAAA  Off Coast of Oregon        

 

ROCKY MOUNTAINS REGION

 

O: 23SEP2022 10:15:02  31.7N  104.5W ML=2.0  EMSC   WESTERN TEXAS

O: 23SEP2022 15:48:28  31.7N  104.4W ML=2.5  EMSC   WESTERN TEXAS

O: 23SEP2022 21:05:42  31.6N  104.3W ML=2.6  EMSC   WESTERN TEXAS                

P: 24SEP2022 146906    32.5N  104.6W 2.0-3.9 AAAAA  SW U.S.A                   

P: 27SEP2022 146906    31.6N  104.6W 2.0-3.9 BAAAA  SW U.S.A                   

 

O: 23SEP2022 10:34:20  44.3N  115.1W ML=2.4  EMSC   SOUTHERN IDAHO               

P: 24SEP2022 146940    44.4N  115.2W 2.0-4.4 AAAAA  Montana/Idaho              

 

EASTERN U.S./CANADA

 

O: 23SEP2022 08:46:49  36.5N   98.5W ML=2.0  EMSC   OKLAHOMA                     

P: 25SEP2022 146921    36.0N   97.0W 2.0-4.1 AAAAA  Southern Plains            

P: 28SEP2022 146922    37.0N   98.0W 2.0-4.1 BAAAA  Southern Plains            

 

O: 22SEP2022 21:12:59  48.4N   57.5W MB=2.6  ECAN of Corner Brook, NL            

 

O: 22SEP2022 16:10:40  50.2N   94.6W MB=1.9  ECAN of Wabaseemoong, ON            

 

HAWAII

 

O: 23SEP2022 07:17:06  19.1N  156.4W ML=3.1  EMSC   HAWAII REGION, HAWAII        

P: 18SEP2022 146587    20.1N  156.1W 4.0-5.4 BAAAA  Hawaii area                

 

O: 24SEP2022 06:43:50  19.3N  155.4W ML=3.8  EMSC   ISLAND OF HAWAII, HAWAII     

P: 24SEP2022 146833    19.3N  155.2W 3.0-4.5 AAAAA  Hawaii