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
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