December 12, 2024
The strongest earthquake in the world today was an M 5.6 in the area of Wallis and Futuna. NEIC did not report it as a felt event.
This epicenter is at 72-73 degrees from the M 7.0 off the coast of Northern California of December 5.
It is probably a regional aftershock of that event at the fifth node (360/5=72 degrees).
The last earthquake within about 200 km of this epicenter with M>=5.6 hit the
area on June 23, 2023 with M 5.6. The last of significantly larger magnitude was an M 6.5 on May 21, 2021.
At that time this summary noted:
"An M 6.5 also occurred in the Fiji Islands today. It was reported felt with intensity III in The Fiji Islands at Labasa and Seaqaqe.
The last earthquake in Fiji of M>=6.5 was an M 6.1 on May 7, 2021. It occurred
near local solar noon and may have been promoted by the C4.4 solar flare
discussed above." (May 21, 2021)
NEIC reported an earthquake of M 4.2 in Kosovo was felt with intensity up to IV in the area(s) of Kosovo at Urosevac and in Metohija, Serbia and Montenegro and in Macedonia at Tetovo, Vratnica, Sipkovica, and III at Dolna Banjica Gostivar, Saraj, Skopje, Kumanovo and in Kukes, Albania.
NEIC reported an earthquake of M 4.7 in Northern Venezuela was felt with intensity up to IV in the area(s) of Northern Venezuela at Port of Spain, Trinidad and Tobago.
NEIC reported an earthquake of M 4.3 in Guatemala was felt with intensity up to IV in the area(s) of Guatemala at Ocos, San Marcos, and II in Olintepeque, Quezaltenango.
NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with intensity up to II in the area(s) of Southern Alaska at Soldotna.
TROPICAL CYCLONE CHIDO (04S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC CHIDO 2024-12-12 00:00 UT 10.6S 54.5E 165 kts South Indian Ocean
TC Chido continued today in the south Indian Ocean with major winds up to 165 kts. It may affect seismicity in the region of the south Indian Ocean ridge system. It is then expected to track to the west perhaps reaching northern Madagascar by December 13. Enhanced seismicity is expected as this strong storm moves through the area.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6210 0143 0157 0208 C2.3 (December 11, 2024) 7.6E-04
6230 0208 0212 0216 C3.1 (December 11, 2024) 1.3E-03
Coquimbo M 4.4 02:10 UT
Northern Mid-Atlantic M 4.7 02:07 UT
6240 0320 0326 0330 C6.9 (December 11, 2024) 2.1E-03
6260 0348 0400 0407 C3.9 (December 11, 2024) 3.4E-03
6290 0554 0604 0609 M1.9 (December 11, 2024) 7.3E-03
6580 0655 0704 0717 C2.7 (December 11, 2024) 3.4E-03
6360 0858 0908 0915 C1.9 (December 11, 2024) 7.3E-04
6410 1003 1006 1010 M2.7 (December 11, 2024) 5.7E-03
6460 1116 1120 1124 C3.8 (December 11, 2024) 7.2E-04
6470 1137 1142 1146 C5.7 (December 11, 2024) 1.2E-03
6500 1412 1420 1427 C3.1 (December 11, 2024) 8.3E-04
6530 1532 1549 1556 M6.7 (December 11, 2024) 4.1E-02
Xinjiang, M 3.2 15:53 UT
6540 1723 1733 1740 C2.4 (December 11, 2024) 2.2E-03
Dominican Republic M 3.7 17:23 UT
6570 2242 2248 2252 C3.8 (December 11, 2024) 1.4E-03
GEOMAGNETIC FIELD: unsettled December 12-14. Solar M-flare chance: 60% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 6 15 4 08:00 5 114 161
A strong Gamma Ray Burst was recorded by SWIFT on December 9, 2024 at 10:59:46 UT (#241209D). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on December 9, 2024 at 05:35:44 UT (#241209A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
December 11, 2024
The strongest earthquake in the world today was an M 5.8 in the Central Andreanof Islands, Alaska. NEIC reported it was felt with intensity up to VI in Adak, Alaska.
This event may have been triggered by the strongest solar flare of the day - of
M1.6 (#6150) as it occurred within minutes of the maximum output of that flare.
6150 1754 1758 1803 M1.6 (December 10, 2024) 8.4E-04
Andreanof Is. M 5.8 18:04 UT
The second strongest earhquake in the world today was an M 5.3 in the South
Indian Ridge. The last earthquake within about 200 km of this epicenter where
an earthquake of M>=5.3 occurred hosted such an event on December 25, 2021.
That earthquake was M 5.4. A stronger M 5.9 occurred about 350 km to the northeast
of today's epicenter on April 15, 2023. At the time this summary noted:
"The activity in the Southwest Indian Ridge is the strongest within about 250 km
of these epicenters since an M 6.1 on September 24, 2019. Earthquakes at 250-300
km of today's activity with M 5.9-6.0 occurred in the past 35 years on August 17, 2013, January 12, 2016 and March 6, 2020.
No earthquakes of larger magnitude have occurred in this area in the past 35 years." (April 15, 2023)
This epicenter in the South Indian Ridge is in the antipodal area of the
M 7.0 off northern California of December 5 and was likely promoted by
antipodal focusing of energy from that source.
NEIC reported earthquakes of M 2.6 in Missouri were felt with intensity up to IV in the area(s) of Missouri at Cuba, III in Fesus, Doniphan and II in Granite City, Illinois, in Missouri at Sikeston, Lilbourn and in Batesville Arkansas.
NEIC reported earthquakes of M 3.2 in Southern Alaska were felt with intensity up to II in the area(s) of Kenai Peninsula, Alaska at Girdwood and Sterling.
NEIC reported earthquakes of M 3.7 west of Hawaii were felt with intensity up to III in the area(s) west of Hawaii at Kealakekua, Naalehu and II in Captain Cook, Holualoa, Kailua Kona and Kamuela.
NEIC reported earthquakes of M 4.1 in northern Chile were felt with intensity up to I in the area(s) of northern Chile at Iquique, Tarapaca.
TROPICAL CYCLONE CHIDO (04S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC CHIDO 2024-12-11 00:00 UT 10.4S 56.7E 145 kts South Indian Ocean
TC Chido continued today in the south Indian Ocean with major winds up to 145 kts. It may affect seismicity in the region of the south Indian Ocean ridge system. It is then expected to track to the west perhaps reaching northern Madagascar by December 13. Enhanced seismicity is expected as this strong storm moves through the area.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5730 0142 0148 0153 C1.7 (December 10, 2024) 9.3E-04
5750 0153 0202 0206 C1.8 (December 10, 2024) 9.4E-04
Argentina M 4.3 01:51 UT
5740 0252 0302 0310 C2.6 (December 10, 2024) 1.1E-03
5760 0312 0327 0336 C9.7 (December 10, 2024) 7.9E-03
Andreanof Is. M 5.1 03:44 UT
5770 0505 0515 0525 C3.0 (December 10, 2024) 9.5E-04
5780 0554 0607 0611 C2.7 (December 10, 2024) 8.4E-04
6100 0611 0616 0622 C3.3 (December 10, 2024) 7.7E-04
Talaud Is. M 4.8 06:13 UT
6110 0622 0631 0636 C5.3 (December 10, 2024) 1.7E-03
Andreanof Is. M 4.1 06:28 UT
5790 0703 0709 0714 M1.4 (December 10, 2024) 6.9E-03
Indian Ocean M 5.3 07:50 UT
5840 0949 0953 1000 C2.0 (December 10, 2024) 1.1E-03
Andreanof Is. M 3.6 09:51 UT
Hindu Kush M 4.7 10:03 UT
6120 1045 1049 1055 C2.1 (December 10, 2024) 6.7E-04
5860 1055 1102 1109 M1.5 (December 10, 2024) 8.3E-03
5880 1208 1217 1229 C2.6 (December 10, 2024) 2.6E-03
5930 1334 1342 1348 C2.6 (December 10, 2024) 1.1E-03
5940 1436 1443 1447 C2.8 (December 10, 2024) 9.3E-04
5950 1505 1512 1517 C2.5 (December 10, 2024) 1.4E-03
5960 1526 1533 1537 C5.9 (December 10, 2024) 1.4E-03
Tarapaca, Chile M 4.1 15:27 UT
5970 1610 1620 1624 C4.9 (December 10, 2024) 2.7E-03
6130 1707 1712 1719 C2.1 (December 10, 2024) 1.6E-03
5980 1719 1722 1727 C2.2 (December 10, 2024) 1.1E-03
5990 1736 1739 1743 C2.1 (December 10, 2024) 6.5E-04
6140 1743 1749 1754 C3.3 (December 10, 2024) 1.3E-03
6150 1754 1758 1803 M1.6 (December 10, 2024) 8.4E-04
Andreanof Is. M 5.8 18:04 UT
6020 1913 1918 1926 C3.0 (December 10, 2024) 2.0E-03
6030 1938 1943 1950 C2.2 (December 10, 2024) 6.4E-04
6160 1950 1954 1958 C2.2 (December 10, 2024) 6.8E-04
Chiapas M 4.1 20:00 UT
6050 2047 2053 2059 C5.8 (December 10, 2024) 2.9E-03
Mindanao M 4.0 20:46 UT
6060 2134 2141 2204 C2.1 (December 10, 2024) 9.6E-04
6070 2210 2221 2231 C8.3 (December 10, 2024) 1.2E-03
6080 2253 2258 2302 C3.5 (December 10, 2024) 1.5E-03
Fox Is. M 4.9 23:35 UT
GEOMAGNETIC FIELD: unsettled December 11-13. Solar M-flare chance: 60% X-class: 10% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 13 7 11:00 5 125 172
A strong Gamma Ray Burst was recorded by SWIFT on December 9, 2024 at 10:59:46 UT (#241209D). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on December 9, 2024 at 05:35:44 UT (#241209A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
December 10, 2024
A moderately strong M 5.8 hit the region of northern Nevada near the California border today. It was followed by a strong series of light aftershocks.
NEIC reported maximum shaking of VI was felt in Nevada at Dayton, Fallon, Fernley, Minden and III in Gardnerville, Glenbrook, Hawthorne, Lovelock, Indian Sprints, Austin.
Preliminary reports do not indicate any major damage with this earthquake.
Minor damage such as items fallen from grocery shelves did occur near the
epicenter. More than 12,000 responded to NEIC that they had felt this earthquake.
The last earthquake within about 200 km of this epicenter in northern Nevada with
M>=5.8 occurred on July 8, 2921 with M 6.0. The only other event in the region
in the past 35 years was an M 6.1 on September 12, 1994. At the time of the July, 2021
event this summary noted:
"The earthquake of M 6.0 in California was preceded about an hour earlier by an M 4.4
in Southeastern Alaska. NEIC reported this earthquake was felt with intensity IV in Alaska at Haines, Skagway and II-III in Elfin Cove, Gustavus, Hoonah, Juneau, Douglas, and in Whitehorse, Yukon, Canada.
Several other indicators had suggested that a strong earthquake was imminent in
California at this time. For example when a light earthquake occurred in western
South Dakota on June 16 ..." (July 8, 2021)
Some indication of a strong enhancement of regional seismicity inland from
major earthquakes off northern California has previously been commented on
in this summary. For example an M 4.2 in Utah - the second strongest earthquake
in Utah in the past four years - occurred minutes after the M 7.0 in California.
At the time this summary noted:
"The mainshock off northern California was also accompanied by an M 4,2 several minutes
later in Utah. This coincidence has been noted in this summary previously.
For example when an M 5.7 occurred in northern Utah on March 18, 2020 and was followed
several hours later by an M 5.2 off the coast of northern California this summary noted:
"A moderate earthquake was also felt in Northern California today. This event of M 5.0-5.2 occurred near the coast and was felt with maximum intensity VI in Ferndale and Scotia according to data from NEIC. Intensity V shaking occurred in California at Rio Dell, Fortuna and Eureka and IV in Petrolia and Hydesville with lesser shaking in Lleta, Carlotta and Myers Flat. Light shaking was reported as far as Central California and southern Oregon. Several light aftershocks followed.
This is probably a regional aftershock of the M 5.8 which hit the area to the
west on March 9, 2020 in a regional activation from Alaska to southern California."
This summary had noted this at the time" (March 18, 2020)
The mainshock in Nevada may have been promoted by a C2.3 solar flare (#5700)
which was finishing up at the time of this earthquake. Data for this flare
(SWPC) follows:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5700 2229 2240 2258 C2.3 (December 9, 2024) 3.8E-03
Nevada M 5.8 23:08 UT
An M 5.7 also occurred today in the South Indian Ocean Ridge. This was not
reported felt in the epicentral area. The last earthquake with M>=5.7 within
about 200 km of this epicenter was an M 5.7 on April 26, 2023 and an M 5.9 on October 2, 2021.
This event is located at 147 degrees from the M 7.0 in Northern California
of December 5, 2024 and was probably a far-field aftershock of that event.
The distance 142-148 degrees is where core reflections and refractions
return to the surface. Enhanced seismicity is often noted in this distance
range following major world=wide earthquakes as noted in this summary in
the previous issue:
"Outer shadow zone edge (141-148 degrees)
Coast of Northern California to Comores Islands,." December 5, 2024)
This indicates strong far-field triggering in the Indian Ocean at this time - triggering
which could include areas near the antipode of northern California to the
south of this event.
This earthquake was probably triggered by a major tropical cyclone (Chido)
which was passing near this epicenter in the South Indian Ridges at the time
of the M 5.7. This was noted in this summary as:
"TROPICAL CYCLONE CHIDO (04S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC CHIDO 2024-12-09 00:00 UT 10.0S 65.7E 115 kts South Indian Ocean
TC Chido formed today in the south Indian Ocean with major winds up to 115 kts. It may affect seismicity in the region of the south Indian Ocean ridge system. It is then expected to track to the west perhaps reaching northern Madagascar by December 13. Enhanced seismicity is expected as this strong storm moves through the area.." (December 9-10, 2024)
The epicenter of this earthquake was given by NEIC as:
O: 09DEC2024 17:25:22 9.3S 66.7E ML=5.7 NEIC MID-INDIAN RIDGE
Strong earthquakes also continued today in the Alaskan Aleutians where a swarm
of such events began yesterday. It was discussed in the previous issue of this
summary as:
"The strongest earthquakes in the U.S. or Canada today occurred as a series of
events of M 6.0, 6.2, 6.3 in the central Andreanof Islands, Aleutians, Alaska.
NEIC reported they were felt in Adak, Alaska. The strongest of these occurred
as M 6.3 within minutes of local solar noon and was probablly promoted by
strong tidal stresses which maximize near this hour. An X2.2 solar flare
also occurred several hours before this swarm and was near local solar midnight
in the Aleutians at time of occurrence. This flare may have begun the process
leading to this series of events in the Andreanof Islands. This series is at 36 degrees (360/10)
from the M 7.0 in Northern California of December 5 and is most likely far-field
aftershocks due to strong energy associated with the California events.
This relation between enhanced seismicity in the Aleutians and strong quakes
off the coast of Northern California was last discussed in the previous issue of
this summary ..." (December 9, 2024)
Today's events included an M 5.7 in the Andreanof Islands Which NEIC reported
was felt with intensity IV in Adak and II in Atka, Alaska.
Moderate aftershocks of the M 7.0 mainshock off northern California of December 5, 2024
also continued to be felt today. NEIC reported this shaking with intensity up to IV in California at Garberville, Myers Flat, Rio Dell, Whitethorn, Marysville, Carlotta, Ferndale, Fortuna, Petrolia, Camino.
NEIC reported earthquakes of M 4.9 in Northern Chile were felt with intensity up to V in the area(s) of Northern Chile at Iquique, Tarapaca and possibly in Santiago with light intensity.
NEIC reported earthquakes of M 4.7 in Honduras were felt with intensity up to II in the area(s) of Honduras at Tegucigalpa.
NEIC reported earthquakes of M 2.5 in Central California were felt with intensity up to II in the area(s) of Central California in Mountain View.
NEIC reported earthquakes of M 4.1 in Dominican Republic were felt with intensity up to III in the area(s) of Dominican Republic in Sosua Puerto Plata and Santiago and II in Licey al Medio.
TROPICAL CYCLONE CHIDO (04S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC CHIDO 2024-12-10 00:00 UT 10.4S 62.7E 115 kts South Indian Ocean
TC Chido continued today in the south Indian Ocean with major winds up to 145 kts. It may affect seismicity in the region of the south Indian Ocean ridge system. It is then expected to track to the west perhaps reaching northern Madagascar by December 13. Enhanced seismicity is expected as this strong storm moves through the area.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5480 0046 0053 0057 C2.7 (December 9, 2024) 1.4E-03
5490 0119 0130 0143 C3.6 (December 9, 2024) 4.2E-03
5500 0207 0210 0214 C2.6 (December 9, 2024) 9.7E-04
5530 0410 0421 0431 C2.4 (December 9, 2024) 2.6E-03
5540 0442 0447 0451 C2.2 (December 9, 2024) 1.0E-03
5560 0612 0622 0629 C4.4 (December 9, 2024) 3.8E-03
Papua M 4.3 06:25 UT
5570 0740 0745 0756 C2.5 (December 9, 2024) 2.2E-03
Southern Sumatra M 4.4 07:41 UT
5580 0816 0824 0828 C2.1 (December 9, 2024) 1.2E-03
Sunda M 5.1 08:21 UT
5590 0936 0942 0946 C2.8 (December 9, 2024) 8.1E-04
Southern Sumatra M 4.8 09:50 UT
5600 1005 1015 1021 C3.7 (December 9, 2024) 5.4E-04
Coquimbo M 4.0 10:20 UT
5610 1208 1227 1235 C6.3 (December 9, 2024) 6.0E-03
East Pacific Rise M 4.8 12:36 UT
5640 1420 1427 1433 C1.7 (December 9, 2024) 9.6E-04
Siberia M 3.9 14:20 UT
5650 1503 1512 1525 C2.5 (December 9, 2024) 2.9E-03
5660 1558 1612 1620 C8.4 (December 9, 2024) 6.4E-03
5680 1937 1947 1953 C2.9 (December 9, 2024) 2.1E-03
5700 2229 2240 2258 C2.3 (December 9, 2024) 3.8E-03
Nevada M 5.8 23:08 UT
5710 2326 2330 2339 C2.5 (December 9, 2024) 1.9E-03
Nevada M 3.2 23:27 UT
GEOMAGNETIC FIELD: quiet December 10-12. Solar M-flare chance: 60% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 16 39 12 19:00 7 94 173
A strong Gamma Ray Burst was recorded by SWIFT on December 9, 2024 at 10:59:46 UT (#241209D). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on December 9, 2024 at 05:35:44 UT (#241209A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
FAR-FIELD AFTERSHOCKS CONTINUE; STRONG QUAKES IN ANDREANOF ISLANDS, ALASKA
EARTHQUAKE SUMMARY FOR DECEMBER 8, 2024
The strongest earthquakes in the U.S. or Canada today occurred as a series of events of M 6.0, 6.2, 6.3 in the central Andreanof Islands, Aleutians, Alaska.
NEIC reported they were felt in Adak, Alaska. This series is at 36 degrees (360/10) from the M 7.0 in Northern California of December 6 and is most likely far-field aftershocks due to strong energy associated with the California events.
The events of M 6.3 in this swarm within minutes of local solar noon and were probably promoted by strong tidal stresses which maximize near this hour. While
an M 6.4 occurred on October 16, 2023 about 200 km from today's epicenters, the last event of M>=6.3 within about 200 km of these epicenters was an M 6.3 on August 23, 2018. At the time this summary noted:
“The largest earthquake of the day was an M 6.3 in the Andreanof Islands, Alaska. It was not reported felt and no tsunami was associated. This appears to be an aftershock of the M 6.6 which had its epicenter to the southwest of this on August 15. These are the strongest earthquakes in the western Aleutian Islands since August 30, 2013." (August 22, 2018)
A great earthquake also hit near today's epicenters on June 10, 1996 with M 7.9.
Forecast 167923 had expected enhanced seismicity in this area was likely around December 10 within about 100 km of today's activity.
O: 09DEC2024 02:57:03 50.8N 177.1W ML=3.4 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:30:23 50.8N 177.5W mb=5.3 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:35:17 50.8N 177.5W ML=4.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:48:39 50.8N 177.5W mb=4.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:56:08 50.8N 177.5W mb=3.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:01:18 50.9N 177.2W mb=5.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:21:53 50.9N 177.4W mb=5.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:30:39 50.9N 177.4W mb=5.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 01:24:47 50.9N 177.2W mb=4.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:11:42 50.9N 177.5W mb=4.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:31:57 50.9N 177.5W Mw=5.6 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:38:12 50.9N 177.5W mb=5.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 04:01:41 50.9N 177.5W ML=3.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 05:21:33 50.9N 177.5W mb=4.5 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 19:57:08 51.0N 177.3W Mw=6.3 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:09:04 51.0N 177.3W ML=3.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:13:59 51.0N 177.2W ML=3.7 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 21:02:50 51.0N 177.4W Mw=5.8 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 21:42:38 51.0N 177.3W mb=4.8 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:38:54 51.0N 177.4W Mw=6.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 05:56:48 51.0N 177.5W mb=5.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:23:59 51.1N 177.4W mb=4.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:26:40 51.1N 177.6W Mw=5.7 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:39:22 51.2N 177.3W Mw=5.4 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:15:31 51.2N 177.3W Mw=6.3 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 9DEC2024 01:39:05 50.7N 177.4W ML=4.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 10DEC2024 167923 51.8N 178.0W 3.5-5.0 AAAAA Andreanoff Isls, Aleutians
The series of moderate aftershocks off the coast of northern California also continued today with a number of events of M>=3 and M>=4. These were generally felt lightly in the area of Ferndale and Petrolia. A classical series of far-field aftershock of the California mainshock of M 7.0 of December 6 today included a series of strong or near-strong quakes and is detailed below in this summary.
Far field seismicity is generally enhanced at nodal distances near 360/n degrees where n is a small integer. At the time of the California event this summary noted the possibility of an extensive far-field aftershock series as:
"Antipodal (~180 degrees)
Coast of Northern California to Southern Indian Ocean
Outer shadow zone edge (141-148 degrees)
Coast of Northern California to Comores Islands,
Node 3 (120 degrees)
Coast of Northern California to Balleny Is, Sumba, Bali, South Georgia, Java, Nicobar Islands, Sumatra,
Inner shadow zone edge (101-110 degrees)
Coast of Northern California to Celebes, Turkmenistan, Assam, India, China, Iran, Mid-Atlantic, New Zealand, Myanmar, Ceram, Halhahera, Molucca, Cyprus, Crete, Greece, Ceram, Christchurch, New Zealand, Molucca, Afghanistan, Caucasus, Irian Jaya, Mindanao,
Node 4 (90 degrees)
Coast of Northern California to Algeria, New Guinea, Romania, Kermadec Is. New Ireland, Algeria, Central Chile, Spain, Taiwan, Algeria, Morocco, China, Bismarck Sea, Serbia, New Guinea, Central Mid-Atlantic
Node 5 (72 degrees)
Coast of Northern California to England, Azores, Tokyo, Japan, Tonga, Samoa, North Sea, Southern Peru, Siberia
Node 6 (60 degrees)
Coast of Northern California to Southern Kuril Islands, Colombia, Ecuador, northern Peru
Node 7 (52 degrees)
Northern California to coast of Panama, Dominican Republic, Puerto Rico, Kamchatka, South of Panama" December 5-6, 2024)
Forecast 167906 had expected enhanced seismicity in the area off the coast of Northern California in early December. Following is a listing of today's aftershocks from the M 7.0 California event of December 5, 2024 of M>=3. A more extensive listing can be found in the "CALIFORNIA" section of this summary.
O: 08DEC2024 15:15:42 40.3N 125.2W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 08:42:39 40.4N 125.0W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 16:23:14 40.4N 125.0W Mw=4.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 09DEC2024 00:47:11 40.4N 124.9W ML=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
A light earthquake of M 2.1 occurred today near Reno, Nevada. It was lightly felt in this area. This event occurred near local solar midnight and may have been promoted by tidal stresses which maximize near this hour. Tidal triggering can indicate regional stresses and a larger event on the horizon.
Forecast 167842 had expected enhanced seismicity in this area was likely around
December 9.
O: 9DEC2024 06:08:57 39.2N 119.0W ML=2.1 EMSC NEVADA
P: 9DEC2024 167842 38.4N 118.7W 2.5-4.6 AAAAA California/Nevada area
A light earthquake of M 2.1 occurred today in the area of southwestern Maine. It was lightly felt in this area. The last earthquake in Maine within about 100 km of this epicenter with M>=2.1 occurred on August 8, 2023 with M 2.5. At the time this summary noted:
"A light earthquake of M 2.5 also shook areas of southwestern Maine today. NEIC reported this earthquake of M 2.5 in western Maine was felt with intensity II-III in the area(s) of western Maine in Tuner, Buckfield, Livermore, Leeds, Canton, Hebron, Livermore Falls, Wayne, Sumner and Greene among others. The last earthquake in Maine within about 100 km of this epicenter of larger magnitude was an M 2.9 on February 4, 2022 and an M 2.5 on February 11, 2016." (August 8, 2023)
This epicenter is at the eighth node (360/8=40 degrees) from the M 7.0 off
Northern California and was probably triggered by energy from that source.
O: 9DEC2024 05:07:58 44.7N 71.0W ML=2.1 EMSC MAINE
P: 4DEC2024 167901 44.0N 71.0W 2.0-4.3 BAAAA New England
Mt. Kanlaon erupted today north of Mindanao, Philippines in the Negros Occidental region in Visayas. This eruption at 10.4N 123E included a magmatic eruption and is likely to include explosive eruption. Evacuations are warranted accorded to PHIVOLCS. Mt. Kalaon is located at 100-101 degrees from the M 7.0 off northern California of December 5, 2024 and may have been excited by energy from that source.
A strong earthquake of M 6.1 also occurred in the Kuril Islands where NEIC reported it was felt with intensity II in Shibetsu, Hokkaido Japan. This epicenter is at the sixth node (360/6=60 degrees) from the M 7.0 off Northern California and is probably a far-field aftershock from that event. The last earthquake within about 200 km of this epicenter with M>=6.1 occurred thirteen years ago with M 6.1 on August 5, 2011. The last and only earthquake in this area with magnitude significantly larger than M 6.1 in the past 35 years occurred on July 8, 2004. At the time of the 2011 event this summary noted:
"A strong earthquake occurred today in the central Kuril Islands with M 6.3.
There were no immediate reports of damage or felt effects from this remote earthquake. The Kuril Islands have been relatively quiet in recent years while the area to the south off Honshu, Japan has been very active. This is the largest earthquake in the Kuril Islands region in more than two years since an M 6.6 on April 18, 2009. That event was the last strong aftershock of the M 7.4 which occurred in the Kurils on January 15, 2009 about 200 km to the south of today's epicenter. The occurrence of the Kuril Islands earthquake at this time may represent a return to more normal seismicity in the region of Japan and the Kuril Islands or may be a part of the pattern we have discussed over the past three days including strong earthquakes near 140-150 degrees East longitude which were triggered by a strong solar flare while this longitude band was directly subsolar." (August 4, 2011)
Forecast 167914 had expected today's event was likely in this area around December 2 or December 8.
O: 8DEC2024 10:25:01 48.8N 152.3E MW=6.1 ANSS KURIL ISLANDS
P: 2DEC2024 167914 49.0N 153.0E 3.5-5.4 CAAAA So. Kurils
P: 8DEC2024 167914 47.0N 153.0E 3.5-5.6 ABAAA So. Kurils
A moderately strong earthquake was widely felt in El Salvador today. NEIC reported this event with M 5.6 was felt with maximum intensity VI in La Union and IV in Anamoros, San Salvador, Santiago de Maria, Choluteca, and in Honduras at Bodega de Los Tangos, Yamaranguila, Marcala,; III in El Salvador at Gotera Morazan, Chirilagua and in Honduras at Choloma, Tegucigalpa, Las Tapias, Valle de Angeles, Yaguacire and La Esperanza among others. This epicenter is located at 40 degrees (360/9) from the earthquake of M 7.0 off northern California of December 5 and was likely a far-field aftershock of that event as previously described in this summary. This earthquake is the strongest in El Salvador since an M 6.5 on July 19, 2023 and a similar M 5.6 on March 17, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.5-6.6 in El Salvador, Central America. NEIC reported it was felt with maximum intensity VIII in El Salvador at Chirilagua, San Miguel; VII in Concepcion, Batres Usulutan, VI in Intipuca La Union; V in Usulutan, IV in San Aleo, San Miguel, Santiago de Maria, San Luis la Herradura La Paz and lesser shaking in El Vijo and Ciudad Barrios, San Miguel. This event was preceded by several light foreshocks.
Enhanced activity in this region had been expected at this time" (July 19, 2023)
and
"The strongest earthquake in the world today was an M 5.7 off the coast of El Salvador. NEIC reported it was felt with maximum intensity IV in El Salvador in Antiguo Cuscatlan, Nuevo Cuscatlan, La Libertad and in San Salvador at Mejicanos and Apopa with lesser shaking of II-III in Intipuca, La Union, El Rosario, La Paz, Gotera, Morazan, San Marcos, San Salvador and Nueva San Salvador. The only events of equal or larger magnitude in the region of El Salvador in the past two years occurred on May 12, 2021 with M 5.9 and on November 4, 2022 with M 5.7" (December 15, 2022)
Forecast 167807 had expected this event within about 100 km was likely
around December 9.
O: 09DEC2024 03:57:06 13.3N 87.9W ML=4.4 EMSC EL SALVADOR
O: 09DEC2024 04:13:46 13.3N 87.9W ML=4.0 EMSC EL SALVADOR
O: 09DEC2024 05:17:08 13.3N 88.0W ML=4.0 EMSC EL SALVADOR
O: 09DEC2024 05:42:49 13.3N 87.9W ML=4.0 EMSC EL SALVADOR
O: 9DEC2024 03:50:29 13.2N 87.9W MW=5.6 EMSC EL SALVADOR
P: 9DEC2024 167807 14.0N 88.0W 3.5-5.3 AAAAA Nicaragua
A series of moderately strong earthquakes including an M 5.8, 5.3, 4.4, 5.6 occurred today on the Central East Pacific Rise. These unfelt events were concentrated around local solar noon and were probably enhanced by energy from the tides which concentrate near this hour. This epicenter is at 51.3-51.4 degrees from the M 7.0 off northern California of December 5. This is at the seventh node (360/7=51.4 degrees) from California and is almost certainly a sign that these events in the East Pacific were far-field aftershocks from California.
The last earthquake in this area of the East Pacific Rise (within about 300 km ) of M>=5.6 occurred as an M 5.8 on February 18, 2021. At the time this summary noted:
"The second strongest earthquake in the world today was an M 5.8 in the Central East Pacific Rise. It was not felt in this remote area. This is the strongest earthquake within about 300 km of this epicenter since an M 5.8 on June 23, 2011. The last, and only event in the region of larger magnitude in the past 30 years was an M 6.0 on October 30, 2008. Today's event occurred within about 15 minutes of local solar noon and may have been promoted by high tidal stresses which maximize near this hour." (February 18, 2021)
Forecast 167774 had expected enhanced seismicity in this region of the
East Pacific Rise was likely in early December.
O: 08DEC2024 16:26:07 9.0S 109.6W Mw=5.3 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 20:27:27 9.1S 109.9W mb=5.1 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 18:07:50 9.2S 109.8W Mw=5.6 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 18:32:21 9.2S 109.5W mb=5.0 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 17:16:00 9.3S 109.0W mb=4.5 EMSC CENTRAL EAST PACIFIC RISE
O: 8DEC2024 16:41:21 8.8S 109.3W MW=5.5 EMSC CENTRAL EAST PACIFIC RISE
P: 2DEC2024 167774 5.0S 105.0W 4.0-5.7 CCCAA No. East Pacific Rise
The earthquakes in the East Pacific Rise were closely associated with an M 4.8 in the Balleny Islands south of New Zealand. While unfelt this event is at 120 degrees (360/3) degrees from the M 7.0 off California of December 5 and is a likely far-field aftershock of that event.
O: 8DEC2024 16:31:05 62.0S 154.9E MB=4.8 EMSC BALLENY ISLANDS REGION
Earlier in the day an M 5.2 hit in Iceland near the antipode of the Balleny Islands. This event is likely a far-field aftershock of the M 7.0 in California as it occurred at the sixth node (360/6=60 degrees) from the California event. It was not reported felt.
An earthquake of M 5.2 occurred in the area of Iceland today. An earthquake of M 5.3 also hit this region of Iceland on April 21, 2024, the first of M>=5.2 in the past ten years - since an eruption in Iceland began on August 24, 2014. On April 21, 2024 this summary noted:
"The strongest earthquakes in the world today were an M 4.9 in Northern Algeria and an M 5.3 in the area of Iceland. The event in Iceland was not associated with the current eruption near Reykjavik and was not reported felt in this remote area. ...
The earthquake of M 5.3 in northeastern Iceland is the largest in that area within about 150 km since a series of moderately large events occurred near this epicenter in August and September, 2014 - a volcanic series which included events of M 5.6 and 5.7 on August 26 and 27, 2014. At the time this summary noted:
"The earthquake of M 5.7 in Iceland is the strongest recorded in that area since an M 5.8 on September 16, 2002, the only other event of this size in Iceland in the past 25 years. It is part of the sub-glacial Bardarbunga volcanic eruption in the central portion of that island. ..." (April 21, 2024)
A second moderate earthquake of M 4.4 also occurred south of Iceland in the
Reykjanes Ridge. It was not felt.
These epicenters are at the sixth node (360/6=60 degrees) from the M 7.0 off northern California of December 5 and enhanced seismicity in this area of Iceland was probably promoted by strong seismic energy from California.
Forecast 167950 and 167932 had expected this activity within about 75 km was likely around December 5.
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: 8DEC2024 18:12:25 33.5N 81.8E MB=4.5 EMSC WESTERN XIZANG
P: 6DEC2024 167884 31.0N 84.0E 3.8-5.4 ACBAA Xizang
O: 8DEC2024 09:50:00 50.1N 96.7E ML=4.2 EMSC SOUTHWESTERN SIBERIA, RUSSIA
P: 6DEC2024 167937 51.0N 98.0E 3.0-4.6 AAAAA So. Siberia
A fire broke out with this earthquake and destroyed property and equipment in
Siberia, Russia.
O: 8DEC2024 17:33:34 54.5N 162.5E MB=3.9 EMSC NEAR EAST COAST OF KAMCHATKA
P: 5DEC2024 167927 54.0N 160.0E 4.0-5.6 BABAA E. of Kamchatka
O: 8DEC2024 08:29:01 36.6N 71.0E MB=4.2 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 9DEC2024 167851 37.0N 69.0E 3.8-5.2 AABAA Hindu Kush/Pakistan
This earthquake is at 103 degrees from the M 7.0 off northern California of
December 5 and was probably promoted by energy from that source.
No significant (M>=5) or unusual earthquakes were reported in Asia today.
INDONESIA AND PHILIPPINES
O: 9DEC2024 06:13:19 0.2N 130.2E ML=4.3 EMSC PAPUA REGION, INDONESIA
P: 4DEC2024 167768 3.0S 129.0E 4.0-5.6 BCBAA Ceram area
O: 9DEC2024 02:22:41 0.2S 124.1E ML=4.3 EMSC MOLUCCA SEA
P: 8DEC2024 167760 0.0N 123.0E 4.0-5.5 AAAAA Mindanao, Philippines
O: 8DEC2024 19:45:17 0.3S 125.4E ML=4.1 EMSC MOLUCCA SEA
P: 10DEC2024 167760 1.0N 125.0E 4.0-5.4 ABAAA Mindanao, Philippines
O: 9DEC2024 06:25:45 1.1S 129.0E ML=4.3 EMSC PAPUA REGION, INDONESIA
P: 4DEC2024 167768 3.0S 129.0E 4.0-5.6 BBAAA Ceram area
O: 8DEC2024 17:11:45 1.8N 123.0E MB=4.9 EMSC MINAHASA, SULAWESI, INDONESIA
P: 10DEC2024 167760 1.0N 125.0E 4.0-5.4 AABAA Mindanao, Philippines
O: 8DEC2024 21:16:31 2.1N 126.6E ML=4.1 EMSC MOLUCCA SEA
O: 8DEC2024 18:51:33 2.9N 128.3E ML=4.2 EMSC HALMAHERA, INDONESIA
P: 7DEC2024 167761 3.0N 126.0E 4.0-5.5 AAAAA Mindanao, Philippines
O: 8DEC2024 16:07:34 7.0S 125.2E MB=4.9 EMSC KEPULAUAN BARAT DAYA, INDONESI
P: 8DEC2024 167770 8.0S 124.0E 4.0-5.6 AABAA Flores Island area
CENTRAL AND SOUTH AMERICA
O: 09DEC2024 03:57:06 13.3N 87.9W ML=4.4 EMSC EL SALVADOR
O: 09DEC2024 04:13:46 13.3N 87.9W ML=4.0 EMSC EL SALVADOR
O: 09DEC2024 05:17:08 13.3N 88.0W ML=4.0 EMSC EL SALVADOR
O: 09DEC2024 05:42:49 13.3N 87.9W ML=4.0 EMSC EL SALVADOR
O: 9DEC2024 03:50:29 13.2N 87.9W MW=5.6 EMSC EL SALVADOR
P: 9DEC2024 167807 14.0N 88.0W 3.5-5.3 AAAAA Nicaragua
O: 8DEC2024 14:58:34 11.2S 73.3W ML=4.2 EMSC CENTRAL PERU
P: 6DEC2024 167959 14.0S 73.0W 4.0-5.6 ACAAA Central Peru
O: 9DEC2024 03:50:29 13.2N 87.9W MW=5.6 EMSC EL SALVADOR
P: 9DEC2024 167807 14.0N 88.0W 3.5-5.3 AAAAA Nicaragua
O: 9DEC2024 01:59:16 14.2N 92.8W ML=4.3 EMSC OFFSHORE CHIAPAS, MEXICO
P: 9DEC2024 167794 14.0N 92.0W 3.5-5.1 AAAAA Guatemala
O: 08DEC2024 12:19:40 15.2N 94.8W ML=4.1 EMSC OFF COAST OF OAXACA, MEXICO
O: 08DEC2024 15:21:36 15.2N 94.8W ML=4.0 EMSC OFF COAST OF OAXACA, MEXICO
O: 8DEC2024 11:52:36 15.1N 94.8W ML=4.2 EMSC OFF COAST OF OAXACA, MEXICO
P: 9DEC2024 167789 14.0N 94.0W 3.5-5.5 ABAAA Chiapas, Mexico
O: 8DEC2024 12:48:08 15.4N 95.9W ML=4.2 EMSC OFFSHORE OAXACA, MEXICO
P: 5DEC2024 167790 16.0N 95.0W 3.5-5.4 BAAAA Chiapas, Mexico
O: 9DEC2024 06:05:33 16.9N 100.0W ML=4.0 EMSC OFFSHORE GUERRERO, MEXICO
P: 8DEC2024 167812 18.0N 100.0W 3.5-5.4 ABAAA Oaxaca, Mexico
O: 9DEC2024 03:00:06 17.5N 95.2W ML=4.2 EMSC VERACRUZ, MEXICO
P: 10DEC2024 167791 18.0N 95.0W 3.5-5.1 AAAAA Chiapas, Mexico
O: 8DEC2024 10:54:32 17.6N 69.7W ML=3.3 EMSC DOMINICAN REPUBLIC REGION
P: 8DEC2024 167813 18.0N 68.0W 3.4-5.2 AABAA Puerto Rico
O: 9DEC2024 04:47:19 18.1N 61.2W ML=3.8 EMSC ANTIGUA AND BARBUDA REGION
P: 7DEC2024 167797 15.0N 61.0W 3.0-5.4 ACAAA Leeward Islands
P: 8DEC2024 167798 18.0N 65.0W 3.0-5.2 AACAA Leeward Islands
O: 9DEC2024 00:31:51 19.1N 65.3W MD=3.4 EMSC PUERTO RICO REGION
P: 8DEC2024 167798 18.0N 65.0W 3.0-5.2 ABAAA Leeward Islands
O: 8DEC2024 17:57:29 19.7N 71.7W ML=3.6 EMSC DOMINICAN REPUBLIC
P: 8DEC2024 167821 20.0N 71.0W 3.0-4.4 AAAAA Bahamas/No. Caribbean
O: 8DEC2024 21:10:47 28.0N 112.3W ML=3.3 EMSC GULF OF CALIFORNIA
P: 10DEC2024 167865 30.2N 114.1W 2.0-3.9 ACBAA SW U.S.A
AFRICA AND EUROPE
O: 8DEC2024 15:04:10 28.4N 16.5W ML=3.3 EMSC CANARY ISLANDS, SPAIN REGION
P: 9DEC2024 167823 28.0N 16.0W 3.0-4.7 AAAAA Canary Islands
O: 9DEC2024 06:33:20 41.4N 15.3E ML=3.6 EMSC SOUTHERN ITALY
P: 6DEC2024 167893 42.0N 16.0E 3.0-5.4 BAAAA Italy
SOUTHWEST PACIFIC
O: 8DEC2024 21:33:35 8.8S 158.1E MB=4.3 EMSC SOLOMON ISLANDS
P: 27NOV2024 167511 9.0S 158.0E 4.0-5.4 DAAAA Solomon Islands
O: 8DEC2024 17:47:08 18.0S 178.4W MB=4.4 EMSC FIJI REGION
P: 6DEC2024 167967 18.0S 180.0W 4.0-5.4 AABAA Tonga Islands
OCEAN RIDGES
O: 08DEC2024 16:26:07 9.0S 109.6W Mw=5.3 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 20:27:27 9.1S 109.9W mb=5.1 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 18:07:50 9.2S 109.8W Mw=5.6 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 18:32:21 9.2S 109.5W mb=5.0 EMSC CENTRAL EAST PACIFIC RISE
O: 08DEC2024 17:16:00 9.3S 109.0W mb=4.5 EMSC CENTRAL EAST PACIFIC RISE
O: 8DEC2024 16:41:21 8.8S 109.3W MW=5.5 EMSC CENTRAL EAST PACIFIC RISE
P: 2DEC2024 167774 5.0S 105.0W 4.0-5.7 CCCAA No. East Pacific Rise
O: 8DEC2024 16:31:05 62.0S 154.9E MB=4.8 EMSC BALLENY ISLANDS REGION
ZEALANDIA AND AUSTRALIA REGION
O: 09DEC2024 05:37:50 30.7S 121.6E ML=3.4 EMSC WESTERN AUSTRALIA
O: 9DEC2024 05:22:49 30.8S 121.6E ML=3.5 EMSC WESTERN AUSTRALIA
P: 29NOV2024 167730 30.0S 117.0E 2.0-3.4 CACAA Central Australia
O: 8DEC2024 18:48:31 37.6S 179.8E ML=4.0 EMSC OFF E. COAST OF N. ISLAND, N.Z
P: 8DEC2024 167985 38.0S 178.0E 3.0-4.6 AABAA North Island, N.Z.
O: 8DEC2024 15:27:34 44.5S 168.2E ML=3.2 EMSC SOUTH ISLAND OF NEW ZEALAND
P: 6DEC2024 167993 44.0S 168.0E 3.0-5.3 AAAAA So. Island, N.Z.
JAPAN AND KURIL ISLANDS
O: 8DEC2024 13:58:30 36.9N 136.4E ML=4.2 EMSC NEAR WEST COAST OF HONSHU,
P: 3DEC2024 167858 37.0N 137.0E 3.5-5.0 BAAAA No. Honshu, Japan
P: 7DEC2024 167858 35.0N 136.0E 3.5-4.9 ABAAA No. Honshu, Japan
O: 8DEC2024 10:25:01 48.8N 152.3E MW=6.1 ANSS KURIL ISLANDS
P: 2DEC2024 167914 49.0N 153.0E 3.5-5.4 CAAAA So. Kurils
P: 8DEC2024 167914 47.0N 153.0E 3.5-5.6 ABAAA So. Kurils
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 09DEC2024 04:15:57 33.2N 116.2W ML=2.4 EMSC SOUTHERN CALIFORNIA
O: 08DEC2024 16:55:37 33.5N 116.5W ML=2.2 EMSC SOUTHERN CALIFORNIA
O: 8DEC2024 22:46:31 33.2N 116.1W ML=2.4 EMSC SOUTHERN CALIFORNIA
P: 8DEC2024 167870 33.4N 116.7W 2.5-4.8 AAAAA So. California
O: 8DEC2024 15:53:50 33.8N 118.3W ML=2.2 EMSC GREATER LOS ANGELES AREA, CALI
P: 10DEC2024 167871 33.6N 118.5W 2.5-4.4 AAAAA So. California
O: 8DEC2024 21:29:14 35.5N 118.4W ML=2.5 EMSC CENTRAL CALIFORNIA
P: 6DEC2024 167874 35.8N 117.6W 2.5-4.4 AAAAA So. California
P: 10DEC2024 167838 36.1N 118.1W 2.5-4.6 AAAAA California/Nevada area
O: 8DEC2024 21:34:52 36.5N 121.1W MD=2.5 EMSC CENTRAL CALIFORNIA
O: 8DEC2024 16:23:56 36.7N 121.4W MD=3.0 EMSC CENTRAL CALIFORNIA
P: 6DEC2024 167843 36.8N 121.3W 2.5-4.7 AAAAA Central California
NEIC reported earthquakes of M 3.0 in Central California were felt with intensity up to II in the area(s) of Central California in Palmdale, Hollister, Paicines, Santa Rosa.
O: 8DEC2024 23:01:21 37.4N 121.7W MD=2.4 EMSC NORTHERN CALIFORNIA
P: 9DEC2024 167845 37.2N 122.1W 2.5-4.8 AAAAA Central California
O: 9DEC2024 06:08:57 39.2N 119.0W ML=2.1 EMSC NEVADA
P: 9DEC2024 167842 38.4N 118.7W 2.5-4.6 AAAAA California/Nevada area
O: 08DEC2024 09:22:43 40.2N 124.7W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 12:46:24 40.2N 124.8W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 09DEC2024 03:24:50 40.2N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 08:52:22 40.3N 124.7W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 10:25:17 40.3N 125.0W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 12:49:52 40.3N 125.0W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 12:55:18 40.3N 124.5W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 13:24:47 40.3N 124.6W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 14:58:59 40.3N 124.8W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 15:15:42 40.3N 125.2W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 16:29:52 40.3N 124.8W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 16:43:26 40.3N 124.4W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 18:54:09 40.3N 124.6W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 21:07:15 40.3N 124.7W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 22:03:31 40.3N 124.6W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 22:17:03 40.3N 125.0W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 09DEC2024 01:25:22 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 08:42:39 40.4N 125.0W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 15:58:24 40.4N 124.8W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 16:23:14 40.4N 125.0W Mw=4.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 21:03:54 40.4N 124.8W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 09DEC2024 00:47:11 40.4N 124.9W ML=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 8DEC2024 07:58:24 40.2N 124.2W MD=2.2 EMSC NORTHERN CALIFORNIA
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
ALASKA
O: 09DEC2024 02:57:03 50.8N 177.1W ML=3.4 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:30:23 50.8N 177.5W mb=5.3 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:35:17 50.8N 177.5W ML=4.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:48:39 50.8N 177.5W mb=4.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:56:08 50.8N 177.5W mb=3.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:01:18 50.9N 177.2W mb=5.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:21:53 50.9N 177.4W mb=5.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:30:39 50.9N 177.4W mb=5.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 01:24:47 50.9N 177.2W mb=4.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:11:42 50.9N 177.5W mb=4.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:31:57 50.9N 177.5W Mw=5.6 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:38:12 50.9N 177.5W mb=5.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 04:01:41 50.9N 177.5W ML=3.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 05:21:33 50.9N 177.5W mb=4.5 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 19:57:08 51.0N 177.3W Mw=6.3 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:09:04 51.0N 177.3W ML=3.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:13:59 51.0N 177.2W ML=3.7 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 21:02:50 51.0N 177.4W Mw=5.8 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 21:42:38 51.0N 177.3W mb=4.8 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:38:54 51.0N 177.4W Mw=6.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 05:56:48 51.0N 177.5W mb=5.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:23:59 51.1N 177.4W mb=4.9 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 03:26:40 51.1N 177.6W Mw=5.7 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 08DEC2024 20:39:22 51.2N 177.3W Mw=5.4 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 09DEC2024 00:15:31 51.2N 177.3W Mw=6.3 EMSC ANDREANOF ISLANDS, ALEUTIAN IS.
O: 9DEC2024 01:39:05 50.7N 177.4W ML=4.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 10DEC2024 167923 51.8N 178.0W 3.5-5.0 AAAAA Andreanoff Isls, Aleutians
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 08DEC2024 13:38:35 43.4N 126.9W ML=3.2 EMSC OFF COAST OF OREGON
O: 8DEC2024 13:24:05 43.2N 127.5W MB=3.9 EMSC OFF COAST OF OREGON
P: 7DEC2024 167907 44.4N 129.3W 3.0-4.4 ABAAA Off Coast of Oregon
NEIC reported earthquakes of M 3.9 west of Oregon were felt with intensity up to III in the area(s) of Oregon at Grants Pass.
ROCKY MOUNTAINS REGION
O: 08DEC2024 08:11:53 31.6N 104.0W ML=2.0 EMSC WESTERN TEXAS
O: 08DEC2024 08:13:51 31.6N 104.0W ML=2.2 EMSC WESTERN TEXAS
O: 8DEC2024 08:19:07 31.6N 104.0W ML=2.2 EMSC WESTERN TEXAS
P: 7DEC2024 167866 32.6N 104.6W 2.0-4.3 AAAAA SW U.S.A
O: 08DEC2024 15:36:05 32.2N 101.9W ML=2.2 EMSC WESTERN TEXAS
O: 08DEC2024 22:11:21 32.3N 101.9W ML=2.5 EMSC WESTERN TEXAS
O: 8DEC2024 15:00:40 32.2N 101.9W ML=3.1 EMSC WESTERN TEXAS
P: 4DEC2024 167866 31.6N 103.6W 2.0-4.3 BABAA SW U.S.A
NEIC reported earthquakes of M 3.0 in Western Texas were felt with intensity up to IV in the area(s) of Western Texas at Stanton, Tarzan, Midland.
O: 8DEC2024 14:02:12 38.5N 112.9W ML=2.3 EMSC UTAH
P: 5DEC2024 167882 39.8N 112.7W 2.0-4.2 BBAAA Utah area
O: 9DEC2024 05:31:35 44.3N 110.5W ML=2.5 EMSC YELLOWSTONE NAT. PARK, WYOMING
P: 9DEC2024 167919 44.2N 110.3W 2.0-4.0 AAAAA Yellowstone/Wyoming
NEIC reported earthquakes of M 2.6 in West Yellowstone, Montana were felt with intensity up to III in the area(s) of Yellowstone Montana.
EASTERN U.S./CANADA
O: 9DEC2024 06:27:03 36.6N 89.6W ML=2.8 EMSC SOUTHEASTERN MISSOURI
P: 7DEC2024 167856 35.0N 89.0W 2.0-4.1 ABAAA New Madrid area
NEIC reported an earthquake of M 2.7 in Missouri were felt with intensity up to IV in the area(s) of Missouri at Lilbourn, Marston, Portageville and perhaps as far as Evansville, Indiana.
O: 9DEC2024 05:07:58 44.7N 71.0W ML=2.1 EMSC MAINE
P: 4DEC2024 167901 44.0N 71.0W 2.0-4.3 BAAAA New England
HAWAII
No earthquakes of M>=3 were located in Hawaii.
NEWS DECEMBER 9, 2024
A moderately strong M 5.8 hit the region of northern Nevada near the California border today. It was followed by a strong series of light aftershocks.
NEIC reported maximum shaking of IV was felt in Nevada at Dayton, Fallon, Fernley, Minden and III in Gardnerville, Glenbrook, Hawthorne, Lovelock, Indian Sprints, Austin.
Preliminary reports do not indicate any major damage with this earthquake.
More than 10,000 responded to NEIC that they had felt this earthquake.
The last earthquake within about 200 km of this epicenter in northern Nevada with
M>=5.8 occurred on July 8, 2921 with M 6.0. The only other event in the region
in the past 35 years was an M 6.1 on September 12, 1994. At the time of the July, 2021
event this summary noted:
"The earthquake of M 6.0 in California was preceded about an hour earlier by an M 4.4
in Southeastern Alaska. NEIC reported this earthquake was felt with intensity IV in Alaska at Haines, Skagway and II-III in Elfin Cove, Gustavus, Hoonah, Juneau, Douglas, and in Whitehorse, Yukon, Canada.
Several other indicators had suggested that a strong earthquake was imminent in
California at this time. For example when a light earthquake occurred in western
South Dakota on June 16 ..." (July 8, 2021)
STRONG EARTHQUAKE IN KURIL ISLANDS
EARTHQUAKE SUMMARY FOR DECEMBER 7, 2024
The strongest earthquake in the world today was an M 6.1 in the Kuril Islands. NEIC reported it was felt with intensity II in Shibetsu, Hokkaido, Japan.
A strong earthquake of M 6.1 also occurred in the Kuril Islands where NEIC reported it was felt with intensity II in Shibetsu, Hokkaido Japan. This epicenter is at the sixth node (360/6=60 degrees) from the M 7.0 off Northern California and is probably a far-field aftershock from that event. The last earthquake within about 200 km of this epicenter with M>=6.1 occurred thirteen years ago with M 6.1 on August 5, 2011. The last and only earthquake in this area with magnitude significantly larger than M 6.1 in the past 35 years occurred on July 8, 2004. At the time of the 2011 event this summary noted:
"A strong earthquake occurred today in the central Kuril Islands with M 6.3.
There were no immediate reports of damage or felt effects from this remote earthquake. The Kuril Islands have been relatively quiet in recent years while the area to the south off Honshu, Japan has been very active. This is the largest earthquake in the Kuril Islands region in more than two years since an M 6.6 on April 18, 2009. That event was the last strong aftershock of the M 7.4 which occurred in the Kurils on January 15, 2009 about 200 km to the south of today's epicenter. The occurrence of the Kuril Islands earthquake at this time may represent a return to more normal seismicity in the region of Japan and the Kuril Islands or may be a part of the pattern we have discussed over the past three days including strong earthquakes near 140-150 degrees East longitude which were triggered by a strong solar flare while this longitude band was directly subsolar." (August 4, 2011)
Forecast 167914 had expected today's event was likely in this area around December 2 or December 8.
O: 8DEC2024 10:25:01 48.8N 152.3E MW=6.1 ANSS KURIL ISLANDS
P: 2DEC2024 167914 49.0N 153.0E 3.5-5.4 CAAAA So. Kurils
P: 8DEC2024 167914 47.0N 153.0E 3.5-5.6 ABAAA So. Kurils
An earthquake of M 5.2 also occurred in the area of Iceland today. An earthquake of M 5.3 also hit this region of Iceland on April 21, 2024, the first of M>=5.2 in the past ten years - since an eruption in Iceland began on August 24, 2014. On April 21, 2024 this summary noted:
"The strongest earthquakes in the world today were an M 4.9 in Northern Algeria and an M 5.3 in the area of Iceland. The event in Iceland was not associated with the current eruption near Reykjavik and was not reported felt in this remote area. ...
The earthquake of M 5.3 in northeastern Iceland is the largest in that area
within about 150 km since a series of moderately large events occurred near this
epicenter in August and September, 2014 - a volcanic series which included
events of M 5.6 and 5.7 on August 26 and 27, 2014. At the time this summary noted:
"The earthquake of M 5.7 in Iceland is the strongest recorded in that area since an M 5.8 on September 16, 2002, the only other event of this size in Iceland in the past 25 years. It is part of the sub-glacial Bardarbunga volcanic eruption in the central portion of that island. ..." (April 21, 2024)
A second moderate earthquake of M 4.4 also occurred south of Iceland in the Reykjanes Ridge. It was not felt.
These epicenters are at the sixth node (360/6=60 degrees) from the M 7.0 off northern California of December 5 and enhanced seismicity in this area of Iceland was probably promoted by strong seismic energy from California.
Forecast 167950 and 167932 had expected this activity within about 75 km was likely around December 5.
O: 8DEC2024 01:49:45 64.5N 17.6W MW=5.2 EMSC ICELAND
P: 5DEC2024 167950 65.0N 16.0W 3.0-4.8 AAAAA Iceland area
O: 7DEC2024 20:11:48 53.2N 29.7W MB=4.4 EMSC NORTHERN MID-ATLANTIC RIDGE
P: 7DEC2024 167932 50.0N 29.0W 4.0-6.1 CAAAA North Mid-Atlantic Ridge
Aftershocks of the M 7.0 off northern California of December 5, 2024 continued at a reduced rate today. Following is a listing of today's events of M>=3 in this aftershock sequence. A more extensive listing is found under the "CALIFORNIA" section of this report.
This activity had been expected within about 50 km around December 7, 2024.
O: 07DEC2024 09:43:22 40.3N 124.9W Mw=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 19:54:28 40.3N 124.5W Mw=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 22:04:24 40.3N 125.0W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
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: 7DEC2024 22:07:48 29.4N 94.9E MB=4.5 EMSC EASTERN XIZANG-INDIA BORDER RE
O: 7DEC2024 18:00:27 29.8N 92.5E MB=4.4 EMSC EASTERN XIZANG
P: 2DEC2024 167875 32.0N 95.0E 3.5-4.9 BBBAA So. China
O: 7DEC2024 17:08:45 30.3N 80.5E ML=4.0 EMSC WESTERN XIZANG-INDIA BORDER RE
P: 3DEC2024 167884 30.0N 80.0E 3.8-5.4 BAAAA Xizang
NEIC reported an earthquake of M 4.1 in the India-Xizang border was felt with intensity up to IV in the area(s) of the India-Xizang border at Joshimath Uttaranchal, India.
O: 8DEC2024 08:29:01 36.6N 71.0E MB=4.2 ANSS SSE OF JURM AFGHANISTAN
P: 9DEC2024 167851 37.0N 69.0E 3.8-5.2 AABAA Hindu Kush/Pakistan
This earthquake is at 103 degrees from the M 7.0 off northern California of
December 5 and was probably promoted by energy from that source.
O: 07DEC2024 19:44:49 23.9N 121.6E ML=4.4 EMSC TAIWAN
O: 7DEC2024 07:48:27 24.0N 122.2E MB=4.9 EMSC TAIWAN REGION
P: 4DEC2024 167835 24.0N 124.0E 4.0-5.4 BAAAA Taiwan
This earthquake in Taiwan is located at the fourth node from the M 7.0 in
Northern California (360/4=90 degrees). It was likely promoted by enhanced
energy from that source.
O: 8DEC2024 04:53:37 37.7N 95.7E MB=4.3 EMSC NORTHERN QINGHAI, CHINA
P: 2DEC2024 167875 32.0N 95.0E 3.5-4.9 CCAAA So. China
O: 8DEC2024 00:20:10 52.7N 160.2E MB=4.5 EMSC OFF EAST COAST OF KAMCHATKA
P: 5DEC2024 167927 54.0N 160.0E 4.0-5.6 BBAAA E. of Kamchatka
P: 8DEC2024 167929 53.0N 158.0E 4.0-5.8 AABAA Kamchatka
O: 8DEC2024 04:27:56 54.0N 168.8E MB=4.4 EMSC KOMANDORSKIYE OSTROVA REGION
P: 4DEC2024 167930 55.0N 169.0E 4.0-5.7 BAAAA Near Islands
INDONESIA AND PHILIPPINES
O: 7DEC2024 07:46:47 0.3S 99.2E MB=4.9 EMSC SOUTHERN SUMATRA, INDONESIA
P: 10DEC2024 167780 2.0S 100.0E 4.0-5.4 BBAAA So. of Sumatera
O: 7DEC2024 20:19:03 0.8S 122.8E ML=4.1 EMSC SULAWESI, INDONESIA
P: 8DEC2024 167782 1.0S 122.0E 4.0-5.4 AAAAA Sulawesi area
O: 07DEC2024 22:10:48 1.6N 126.4E ML=4.2 EMSC MOLUCCA SEA
O: 8DEC2024 02:44:29 1.1N 126.3E MB=5.0 EMSC MOLUCCA SEA
P: 10DEC2024 167760 1.0N 125.0E 4.0-5.4 AABAA Mindanao, Philippines
O: 7DEC2024 09:41:26 2.1S 124.5E MB=5.1 EMSC BANDA SEA
P: 8DEC2024 167782 1.0S 122.0E 4.0-5.4 ABCAA Sulawesi area
NEIC reported earthquakes of M 5.0 in Sulawesi were felt with intensity up to III in the area(s) of Sulawesii at Bitung.
O: 7DEC2024 07:56:59 3.1S 130.7E ML=4.4 EMSC SERAM, INDONESIA
P: 4DEC2024 167768 3.0S 129.0E 4.0-5.6 BABAA Ceram area
O: 7DEC2024 19:46:18 3.6S 150.0E MB=4.8 EMSC NEW IRELAND REGION, P.N.G.
P: 9DEC2024 167773 7.0S 150.0E 4.0-5.4 ACAAA New Ireland
CENTRAL AND SOUTH AMERICA
O: 07DEC2024 17:53:45 9.4S 79.2W ML=4.2 EMSC OFF COAST OF NORTHERN PERU
O: 7DEC2024 10:16:52 8.3S 79.9W MB=4.5 EMSC NEAR COAST OF NORTHERN PERU
P: 2DEC2024 167766 8.0S 74.0W 3.5-5.5 BACAA Brazil
O: 7DEC2024 13:24:24 12.3S 73.1W MB=4.7 EMSC CENTRAL PERU
P: 6DEC2024 167959 14.0S 73.0W 4.0-5.6 ABAAA Central Peru
O: 7DEC2024 09:06:12 13.1N 87.7W MB=4.9 EMSC NICARAGUA
P: 9DEC2024 167807 14.0N 88.0W 3.5-5.3 AAAAA Nicaragua
This epicenter is located at the ninth node (360/9=40 degrees) from the
M 7.0 in Northern California of December 5 and may have been promoted by
enhanced seismic energy from that source.
NEIC reported earthquakes of M 4.9 in Honduras were felt with intensity up to IV in the area(s) of Honduras at Yaguacire Francisco Morazan.
O: 8DEC2024 05:29:23 15.3N 93.4W ML=4.2 EMSC OFFSHORE CHIAPAS, MEXICO
O: 7DEC2024 11:28:44 15.3N 94.3W ML=4.3 EMSC OFFSHORE CHIAPAS, MEXICO
P: 7DEC2024 167790 15.0N 94.0W 3.5-5.6 AAAAA Chiapas, Mexico
O: 7DEC2024 21:18:23 15.9N 98.5W ML=4.0 EMSC OFFSHORE OAXACA, MEXICO
P: 8DEC2024 167811 16.0N 97.0W 3.5-5.1 AABAA Oaxaca, Mexico
O: 7DEC2024 08:23:25 18.2N 67.5W MD=3.4 EMSC MONA PASSAGE, PUERTO RICO
O: 08DEC2024 03:58:02 18.2N 68.6W MD=3.3 EMSC MONA PASSAGE, DOMINICAN REPUBLIC
O: 07DEC2024 20:56:05 18.5N 67.4W MD=3.0 EMSC MONA PASSAGE, PUERTO RICO
P: 8DEC2024 167813 18.0N 68.0W 3.4-5.2 AAAAA Puerto Rico
O: 8DEC2024 04:55:53 19.0N 65.4W MD=3.3 EMSC PUERTO RICO REGION
P: 8DEC2024 167798 18.0N 65.0W 3.0-5.2 AAAAA Leeward Islands
O: 8DEC2024 02:08:19 19.2N 70.1W ML=3.0 EMSC DOMINICAN REPUBLIC
P: 8DEC2024 167821 20.0N 71.0W 3.0-4.4 AAAAA Bahamas/No. Caribbean
AFRICA AND EUROPE
O: 8DEC2024 01:49:45 64.5N 17.6W MW=5.2 EMSC ICELAND
P: 5DEC2024 167950 65.0N 16.0W 3.0-4.8 AAAAA Iceland area
SOUTHWEST PACIFIC
O: 8DEC2024 03:51:08 18.9S 177.9W MB=4.4 EMSC FIJI REGION
P: 7DEC2024 167967 19.0S 176.0W 4.0-5.5 AABAA Tonga Islands
O: 7DEC2024 21:02:15 21.0S 169.6E MB=4.6 EMSC SOUTHEAST OF LOYALTY ISLANDS
P: 9DEC2024 167975 22.0S 170.0E 4.0-5.9 AAAAA Loyalty Islands
O: 7DEC2024 23:25:12 21.0S 173.6W MB=5.4 EMSC TONGA
P: 9DEC2024 167980 20.0S 175.0W 4.0-5.6 AABAA Tonga Islands
OCEAN RIDGES
O: 7DEC2024 17:31:59 40.3S 16.8W MW=5.8 EMSC SOUTHERN MID-ATLANTIC RIDGE
O: 7DEC2024 20:11:48 53.2N 29.7W MB=4.4 EMSC NORTHERN MID-ATLANTIC RIDGE
P: 7DEC2024 167932 50.0N 29.0W 4.0-6.1 CAAAA North Mid-Atlantic Ridge
This earthquake is located at the sixth node (360/6=60 degrees) from the earthquake
of M 7.0 in northern California of December 5 and was probably promoted by
energy from that source
O: 8DEC2024 01:49:45 64.5N 17.6W MW=5.2 EMSC ICELAND
P: 5DEC2024 167950 65.0N 16.0W 3.0-4.8 AAAAA Iceland area
ZEALANDIA AND AUSTRALIA REGION
O: 7DEC2024 09:22:48 45.2S 167.1E ML=3.5 EMSC SOUTH ISLAND OF NEW ZEALAND
P: 6DEC2024 167993 44.0S 168.0E 3.0-5.3 ABAAA So. Island, N.Z.
This earthquake is at 104 degrees from the M 7.0 off northern California of December 5
and was probably promoted by enhanced energy from that source.
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 7DEC2024 22:39:45 35.6N 140.1E MB=4.5 EMSC NEAR EAST COAST OF HONSHU,
P: 10DEC2024 167863 36.0N 142.0E 4.0-5.4 BABAA Off East Coast Honshu
NEIC reported earthquakes of M 4.5 in SE Honshu, Japan were felt with intensity up to II-III in the area(s) of SE Honshu, Japan in Chiba, Kanagawa, Saitama, and Tokyo Prefectures.
O: 8DEC2024 10:25:01 48.8N 152.3E MW=6.1 ANSS KURIL ISLANDS
P: 2DEC2024 167914 49.0N 153.0E 3.5-5.4 CAAAA So. Kurils
P: 8DEC2024 167914 47.0N 153.0E 3.5-5.6 ABAAA So. Kurils
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 7DEC2024 21:40:04 30.2N 114.5W ML=3.1 EMSC GULF OF CALIFORNIA
P: 10DEC2024 167865 30.2N 114.1W 2.0-3.9 BAAAA SW U.S.A
O: 07DEC2024 08:49:41 33.3N 116.2W ML=2.5 EMSC SOUTHERN CALIFORNIA
O: 08DEC2024 03:59:24 33.5N 116.5W ML=2.0 EMSC SOUTHERN CALIFORNIA
O: 7DEC2024 18:18:20 33.2N 116.2W ML=3.0 EMSC SOUTHERN CALIFORNIA
P: 8DEC2024 167870 33.4N 116.7W 2.5-4.8 AAAAA So. California
NEIC reported earthquakes of M 2.7 in Southern California were felt with intensity up to II in the area(s) of Southern California in Oceanside and San Marcos.
NEIC reported earthquakes of M 3.1 in Southern California were felt with intensity up to II-III in the area(s) of Southern California at Claremont, Vista, Thermal and Murrieta.
O: 7DEC2024 20:43:07 34.7N 116.4W ML=2.1 EMSC SOUTHERN CALIFORNIA
P: 5DEC2024 167870 34.3N 116.5W 2.5-4.8 AAAAA So. California
O: 7DEC2024 17:29:05 38.8N 122.7W MD=2.0 EMSC NORTHERN CALIFORNIA
P: 7DEC2024 167846 38.8N 122.8W 2.5-4.4 AAAAA Central California
O: 8DEC2024 02:50:53 40.3N 121.1W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 5DEC2024 167905 40.0N 120.9W 2.5-4.9 BAAAA Northern California
NEIC reported an earthquake of M 2.5 in Northern California was felt with intensity up to II in the area(s) of Northern California at Chester, Shingle Springs and in Dayton, Nevada.
O: 07DEC2024 08:08:27 40.3N 124.6W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 08:56:33 40.3N 125.0W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 09:37:51 40.3N 125.1W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 09:43:22 40.3N 124.9W Mw=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 10:30:57 40.3N 124.4W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 11:27:40 40.3N 124.5W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 11:34:07 40.3N 125.1W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 12:26:12 40.3N 124.5W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 13:17:21 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 13:19:14 40.3N 124.7W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 14:42:19 40.3N 124.9W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 14:49:09 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 16:35:19 40.3N 124.5W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 16:43:59 40.3N 124.6W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 17:04:01 40.3N 124.6W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 17:11:46 40.3N 124.5W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 17:51:39 40.3N 124.9W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 18:27:47 40.3N 125.2W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 19:48:25 40.3N 124.8W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 19:54:28 40.3N 124.5W Mw=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 21:41:32 40.3N 124.7W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 22:04:24 40.3N 125.0W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 22:27:32 40.3N 124.5W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 22:54:32 40.3N 124.6W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 04:17:03 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 04:54:45 40.3N 124.5W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 06:15:14 40.3N 124.4W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 10:31:54 40.4N 124.8W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 11:08:52 40.4N 124.8W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 11:52:28 40.4N 125.1W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 12:31:17 40.4N 124.7W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 13:34:34 40.4N 125.1W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 14:04:40 40.4N 124.9W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 20:59:40 40.4N 124.9W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 22:35:23 40.4N 124.9W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 08DEC2024 05:10:42 40.4N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 8DEC2024 04:34:37 40.2N 124.3W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
ALASKA
O: 7DEC2024 10:33:59 52.1N 172.1W ML=4.2 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 10DEC2024 167924 52.3N 171.3W 3.5-4.9 BAAAA Andreanoff Isls, Aleutians
O: 8DEC2024 04:56:41 56.8N 155.6W ML=3.1 EMSC ALASKA PENINSULA
P: 5DEC2024 167921 54.8N 158.7W 3.5-4.9 BBBAA Alaska Peninsula
O: 8DEC2024 03:31:43 58.1N 155.2W ML=3.3 EMSC ALASKA PENINSULA
P: 4DEC2024 167945 60.0N 153.5W 3.2-5.0 BBBAA 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: 07DEC2024 23:06:27 31.5N 103.7W ML=2.0 EMSC WESTERN TEXAS
O: 07DEC2024 19:57:48 31.6N 103.9W ML=2.2 EMSC WESTERN TEXAS
O: 07DEC2024 22:47:50 32.4N 102.1W ML=2.1 EMSC WESTERN TEXAS
O: 8DEC2024 04:28:00 31.3N 103.6W ML=2.1 EMSC WESTERN TEXAS
P: 7DEC2024 167866 32.6N 104.6W 2.0-4.3 ABAAA SW U.S.A
EASTERN U.S./CANADA
O: 7DEC2024 10:24:29 32.9N 80.2W MD=2.0 EMSC SOUTH CAROLINA
P: 5DEC2024 167878 34.0N 80.0W 2.0-3.9 ABAAA Southeast U.S.
O: 07DEC2024 08:04:38 36.0N 98.0W ML=2.1 EMSC OKLAHOMA
O: 7DEC2024 07:53:03 36.0N 98.0W ML=2.1 EMSC OKLAHOMA
P: 3DEC2024 167879 35.0N 97.0W 2.0-4.3 BAAAA Southern Plains
HAWAII
No earthquakes of M>=3 were located in Hawaii.
MODERATE TO STRONG EARTHQUAKES AT NODAL DISTANCES FROM NORTHERN CALIFORNIA
EARTHQUAKE SUMMARY FOR DECEMBER 6, 2024
A strong aftershock series continued today following the M 7.0 off the coast of
Northern California of December 5, 2024. Many of these were felt lightly in Ferndale and Petrolia but none were large enough to cause damage.
Following is a listing of aftershocks today in the region with M>=4.0. A more extensive listing can be found in the "CALIFORNIA" section of this summary.
Forecast 167906 had expected this activity was likely within about 50 km around December 7, 2024.
O: 06DEC2024 07:01:46 40.3N 124.1W Mw=4.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:36:13 40.3N 124.9W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:58:22 40.3N 124.7W Mw=4.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 15:50:23 40.3N 124.0W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 20:01:06 40.3N 124.5W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
The strongest earthquake in the world today was an M 5.5-6.0 in the Molucca Sea,
Indonesia. BMG gave this event at 1.7N 121.2E with M 6.0. No felt data was available from BMG for this event although mapping at the BMG website indicates it was felt with intensity up to III throughout the area. A similar event of M 5.1 was located south of this later in the day. It was reported by BMG to have been felt with intensity IV in Taliabu Baratand III in Banggai at Boka, Lede, Tabona among others. These epicenters are both at 106 degrees from the M 7.0 off the coast of northern California of December 5 and is probably a far-field aftershock from that event.
The last earthquake within about 150 km of this epicenter in Sulawesi with M>=6.0 occurred on November 16, 2008 with M 7.4. At the time this summary noted:
"A strong earthquake of M 7.5-7.6 hit the region of Minahasa, Sulawesi, Indonesia. ... Bernama reported at least one person was killed and many injured and hundreds of houses were damaged in the northern Gorontalo area on Sulawesi island of Indonesia. At least 23 people were injured in Kwandang village, Gorontalo province. More than 700 houses fell in the Buol district 600 km north of Central Sulawesi north of the capital Palu and another 500 were damaged. Information and communications from Buol had been cut following the quake. No tsunami appears to have occurred although this was a shallow earthquake. a tsunami warning was issued but no major event appeared within the first 90 minutes and the warning was withdrawn. A tsunami did occur however and the sea level briefly rose in many areas. Many residents fled the coast areas and roads and are currently camping on the highland areas." (November 16, 2008)
Forecast 167752 had expected this earthquake was likely to see enhanced seismicity within about 100 km of this epicenter around December 5, 2024.
O: 6DEC2024 17:15:00 1.5N 121.2E Mw=5.5 EMSC MINAHASA, SULAWESI, INDONESIA
O: 6DEC2024 17:15:00 1.5N 121.2E Mw=6.0 BMG MINAHASA, SULAWESI, INDONESIA
P: 5DEC2024 167752 1.0N 122.0E 4.0-5.4 AAAAA Celebes Sea
An earthquake of M 4.8 today occurred in the West Chile Rise. It was not felt.
This epicenter is located at 90 degrees (360/4=90 degrees) from the M 7.0 off northern California of December 5 and is probably a far-field earthquake associated with that source.
Forecast 167989 had expected this event within about 100 km was likely around December 4.
O: 7DEC2024 03:38:10 42.7S 82.1W mb=4.8 EMSC WEST CHILE RISE
P: 4DEC2024 167989 43.0S 83.0W 4.0-5.4 BAAAA Chile Rise
NEIC reported an earthquake of M 5.3 in Southern Chile was felt with intensity up to V-VI in the area(s) of Southern Chile in Araucania at Carahue, Nueva Imperia; IV in Temuco, Villarrica and III in Pitrufquen. Also felt lightly in Los Lagos at Rio Bueno and Valdivia and in Bio Bio and Santiago. EMSC reported moderate shaking in Chile at Temuco, Valdivia, Corral and Pucon. This epicenter - like the M 4.8 in the West Chile Rise - is located at 90 degrees (360/4=90 degrees) from the M 7.0 off northern California of December 5 and is probably a far-field earthquake associated with that source. The last earthquake within about 150 km of this epicenter with M>=5.3 occurred on December 24, 2023. At the time this summary noted:
"The strongest earthquake in the world today was an M 5.9 in Bio-Bio Chile. NEIC reported it was felt with intensity up to VI in the area of Canete, Chile.
An aftershock of M 5.1 in Bio-Bio, Chile was also felt with intensity up to IV in the area(s) of Bio-Bio, Chile in Canete. NEIC reported this aftershock of M 5.1 in Bio-Bio, Chile was felt with intensity up to IV in the area(s) of Bio-Bio, Chile in Canete. EMSC reported the mainshock was strongly felt in Bio-Bio at Lebu, Puren, Temuco, Lautaro, San Pedro de la Paz, Los Angeles, Pucon. This is the strongest earthquake in Bio-Bio, Chile since an M 6.3 north of this on November 13, 2022. The only other event in this region with M>=5.9 was an M 6.4 on September 21, 2021." (December 24, 2023)
The last strong earthquake in this region occurred as an M 6.7 on December 27, 2020 and was apparently triggered by a total eclipse of the sun as noted in this summary at the time:
"An earthquake of M 6.7-6.8 shook south-Central Chile in the region of Los Lagos today. This is the strongest earthquake in the world in nearly two months - since an M 7.0 in the Dodecanese Islands, Greece on October 30, 2020. It occurred at an epicenter where the total eclipse of the sun was maximized on December 14 and is a prime example of high tidal stresses associated with eclipses affecting subsequent seismicity. A series of strong quakes has occurred in Chile since December 14, including one within minutes of the eclipse in northern Chile, but the location of today's event at precisely the point of maximum eclipse in Chile is strong evidence for tidal triggering." (December 27, 2020)
Forecast 167983 and 167734 had expected enhanced seismicity in this region within about 50 km was likely at the end of November or in early December.
O: 7DEC2024 06:26:24 38.9S 73.6W Mw=5.3 EMSC OFFSHORE ARAUCANIA, CHILE
P: 7DEC2024 167983 36.0S 73.0W 4.0-5.8 ACAAA Central Chile
P: 24NOV2024 167734 39.0S 73.0W 4.0-5.6 CAAAA Central Chile
NEIC reported earthquakes of M 5.1 in Tonga were felt with intensity up to IV in the area(s) of Tonga at Pangai Ha'apai. This epicenter is near the fifth node from the M 7.0 in northern California (360/5=72 degrees) and this may be a far-field aftershock of that event.
A pair of earthquake of M 4.4-4.7 occurred today in western Canada. These occurred as an M 4.7 in the northern Yukon Territory near For McPherson and as an M 4.5 in British Columbia near Port Hardy. The M 4.4-4.7 in Northwest Territory, Canada is the strongest within about 200 km of this epicenter since an M 4.9 on November 8, 2024 and June 2, 2024 - the first of M>=4.7 in the area since an M 5.0 on December 22, 2017 and an M 4.7 on November 3, 2017.
"The strongest earthquake in the U.S. or Canada was an M 5.0 in Yukon Territory, Canada. NEIC reported this earthquake of M 4.9-5.0 in northern Yukon Territory, Canada was felt with intensity up to V in the area(s) of northern Yukon Territory, Canada at Dawson City. A foreshock hours earlier of M 4.1 was reported by NEIC to have been felt near Dawson City, Canada with intensity up to IV. The last earthquake with M>=5.0 within about 300 km of today's event in
Yukon was recorded by NEIC on December 22, 2017 with M 5.0 and prior to that on September 24, 2005 with M 5.1.
The earthquake in the Yukon Territory of Canada reported in the previous summary was felt lightly in the epicentral area according to Earthquakes Canada. That agency also recalibrated the magnitude at M 5.9, the largest in the area in at least 25 years. The report in the previous summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 5.0 in the northern Yukon Territory, Canada. There were no felt reports for this earthquake but it is likely that an earthquake of this size in this region would have been felt by local inhabitants. The last earthquakes within about 250 km of this epicenter in the Yukon occurred on July 21, 1996; March 1, 1995 and January 5, 1991 all with M 5.0." (December 22, 2017, November 8, 2024)
Forecast 167951 had expected today's event within about 150 km was likely around December 8, 2024.
O: 07DEC2024 05:59:13 65.6N 135.2W MB=4.7 ECAN OF FORT MCPHERSON, NT
O: 7DEC2024 05:59:12 65.6N 135.1W mb=4.4 EMSC NORTHERN YUKON TERRITORY, CANA
P: 8DEC2024 167951 64.0N 137.0W 3.0-4.8 ABAAA Northern Alaska
Several other regional earthquakes of moderate magnitude in the area of the western North America also occurred today and were likely triggered by stress transfer from the M 7.0 in Northern California of December 5. The largest of these was an M 4.4 in the Vancouver Island region of Canada. This may be an aftershock of an M 6.5 that hit near this epicenter on July 11, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.4 in the series in Vancouver Island, British Columbia which began July 4, 2024. NEIC reported it was lightly felt with moderate intensity up to IV in Tofino, Canada. EMSC reported light shaking in Chilliwack, Canada. Several moderate aftershocks – including an M 5.4 - were also felt in this region. This summary has extensively covered this swarm in previous issues" (July 11, 2024)
Forecast 167916 had expected today's earthquake in the Vancouver Island area was likely around December 6.
O: 06DEC2024 19:39:44 48.7N 128.8W MB=3.5 ECAN OF PORT HARDY, BC
O: 6DEC2024 06:32:03 49.2N 129.0W MB=4.4 EMSC VANCOUVER ISLAND, CANADA REGIO
O: 6DEC2024 06:31:58 48.9N 129.5W MB=4.5 ECAN OF PORT HARDY, BC
P: 6DEC2024 167916 47.9N 129.1W 2.8-5.1 AAAAA Vancouver Island area
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
No significant (M>=5) or unusual earthquakes were reported in Asia today.
INDONESIA AND PHILIPPINES
O: 6DEC2024 17:15:00 1.5N 121.2E Mw=5.5 EMSC MINAHASA, SULAWESI, INDONESIA
O: 6DEC2024 17:15:00 1.5N 121.2E Mw=6.0 BMG MINAHASA, SULAWESI, INDONESIA
P: 5DEC2024 167752 1.0N 122.0E 4.0-5.4 AAAAA Celebes Sea
O: 6DEC2024 22:41:47 1.1N 124.3E ML=4.0 EMSC MOLUCCA SEA
P: 10DEC2024 167760 1.0N 125.0E 4.0-5.4 BAAAA Mindanao, Philippines
O: 6DEC2024 17:15:00 1.5N 121.2E Mw=5.5 EMSC MINAHASA, SULAWESI, INDONESIA
O: 6DEC2024 17:15:00 1.5N 121.2E Mw=6.0 BMG MINAHASA, SULAWESI, INDONESIA
P: 5DEC2024 167752 1.0N 122.0E 4.0-5.4 AAAAA Celebes Sea
O: 6DEC2024 22:45:04 1.8S 138.3E mb=4.8 EMSC NEAR N COAST OF PAPUA, INDONES
P: 9DEC2024 167785 3.0S 138.0E 4.0-5.4 BBAAA West Irian, PNG
O: 7DEC2024 00:37:57 1.9S 115.2E ML=4.3 EMSC KALIMANTAN, INDONESIA
P: 3DEC2024 167778 6.0S 113.0E 4.0-5.5 BDBAA So. of Bali
O: 6DEC2024 09:02:24 4.9S 77.7W ML=4.1 EMSC NORTHERN PERU
P: 4DEC2024 167775 6.0S 76.0W 4.0-6.0 ABBAA No. Peru
O: 7DEC2024 00:12:21 7.1S 107.7E mb=4.9 EMSC JAVA, INDONESIA
P: 7DEC2024 167966 10.0S 108.0E 4.0-5.5 ACAAA So. of Java
O: 7DEC2024 00:41:53 7.7S 128.4E mb=4.7 EMSC KEPULAUAN BARAT DAYA, INDONESI
P: 5DEC2024 167765 6.0S 128.0E 4.0-5.4 ABAAA Banda Sea
O: 6DEC2024 20:36:11 8.3S 108.5E mb=4.4 EMSC JAVA, INDONESIA
P: 7DEC2024 167966 10.0S 108.0E 4.0-5.5 ABAAA So. of Java
O: 6DEC2024 18:49:12 15.6N 119.3E ML=4.1 EMSC LUZON, PHILIPPINES
P: 4DEC2024 167802 18.0N 120.0E 3.5-5.9 ACAAA Luzon, Philippines
CENTRAL AND SOUTH AMERICA
O: 6DEC2024 09:02:24 4.9S 77.7W ML=4.1 EMSC NORTHERN PERU
P: 4DEC2024 167775 6.0S 76.0W 4.0-6.0 ABBAA No. Peru
O: 6DEC2024 11:47:30 10.6N 83.1W ML=4.0 EMSC COSTA RICA
P: 5DEC2024 167788 10.0N 84.0W 3.5-5.5 AAAAA Caribbean Sea
O: 6DEC2024 17:09:20 14.3S 76.0W ML=4.1 EMSC NEAR COAST OF CENTRAL PERU
P: 9DEC2024 167959 15.0S 76.0W 4.0-5.8 BAAAA Central Peru
O: 6DEC2024 14:17:43 15.2S 73.1W ML=4.0 EMSC SOUTHERN PERU
P: 6DEC2024 167959 14.0S 73.0W 4.0-5.6 ABAAA Central Peru
O: 6DEC2024 18:56:05 18.3N 67.7W MD=3.3 EMSC MONA PASSAGE, PUERTO RICO
P: 8DEC2024 167813 18.0N 68.0W 3.4-5.2 AAAAA Puerto Rico
O: 7DEC2024 03:23:23 18.3N 68.9W ML=3.0 EMSC DOMINICAN REPUBLIC REGION
P: 8DEC2024 167813 18.0N 68.0W 3.4-5.2 AAAAA Puerto Rico
O: 6DEC2024 09:28:59 19.4N 70.5W ML=3.0 EMSC DOMINICAN REPUBLIC
P: 8DEC2024 167821 20.0N 71.0W 3.0-4.4 AAAAA Bahamas/No. Caribbean
O: 7DEC2024 05:07:06 19.6N 64.4W MD=4.2 EMSC VIRGIN ISLANDS REGION
P: 6DEC2024 167798 18.0N 64.0W 3.0-5.4 ABAAA Leeward Islands
O: 6DEC2024 17:53:07 19.8N 73.6W ML=3.5 EMSC HAITI REGION
P: 4DEC2024 167821 18.0N 73.0W 3.0-4.4 ABAAA Bahamas/No. Caribbean
O: 6DEC2024 07:53:19 22.2S 67.2W mb=4.8 EMSC POTOSI, BOLIVIA
P: 7DEC2024 167971 23.0S 66.0W 4.0-5.8 AAAAA Argentina
O: 6DEC2024 19:28:47 22.8S 66.3W mb=4.3 EMSC JUJUY, ARGENTINA
P: 7DEC2024 167971 23.0S 66.0W 4.0-5.8 AAAAA Argentina
O: 6DEC2024 18:00:30 32.9S 68.4W ML=4.1 EMSC MENDOZA, ARGENTINA
P: 8DEC2024 167983 33.0S 69.0W 4.0-5.8 AAAAA Central Chile
O: 7DEC2024 06:26:24 38.9S 73.6W Mw=5.3 EMSC OFFSHORE ARAUCANIA, CHILE
P: 7DEC2024 167983 36.0S 73.0W 4.0-5.8 ACAAA Central Chile
P: 24NOV2024 167734 39.0S 73.0W 4.0-5.6 CAAAA Central Chile
O: 06DEC2024 17:42:19 19.6N 73.6W ML=4.1 EMSC HAITI REGION
O: 6DEC2024 17:53:07 19.8N 73.6W ML=3.5 EMSC HAITI REGION
P: 4DEC2024 167821 18.0N 73.0W 3.0-4.4 ABAAA Bahamas/No. Caribbean
AFRICA AND EUROPE
No significant (M>=5) or unusual earthquakes were reported in Europe today.
SOUTHWEST PACIFIC
O: 6DEC2024 10:28:38 19.6S 174.3W mb=5.1 EMSC TONGA
P: 9DEC2024 167980 20.0S 175.0W 4.0-5.6 BAAAA Tonga Islands
O: 6DEC2024 22:05:45 23.3S 179.8W mb=4.6 EMSC SOUTH OF FIJI ISLANDS
P: 5DEC2024 167981 23.0S 180.0W 4.0-5.7 AAAAA Tonga Islands
OCEAN RIDGES
O: 6DEC2024 13:57:10 14.8S 109.5W mb=4.9 EMSC CENTRAL EAST PACIFIC RISE
O: 7DEC2024 03:38:10 42.7S 82.1W mb=4.8 EMSC WEST CHILE RISE
P: 4DEC2024 167989 43.0S 83.0W 4.0-5.4 BAAAA Chile Rise
No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.
ZEALANDIA AND AUSTRALIA REGION
O: 6DEC2024 10:32:28 45.2S 167.4E ML=3.7 EMSC SOUTH ISLAND OF NEW ZEALAND
P: 2DEC2024 167993 45.0S 167.0E 3.0-5.1 ABAAA So. Island, N.Z.
P: 6DEC2024 167993 44.0S 168.0E 3.0-5.3 ABAAA So. Island, N.Z.
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 7DEC2024 06:26:07 26.3N 124.9E mb=4.6 EMSC NORTHEAST OF TAIWAN
P: 3DEC2024 167831 25.0N 127.0E 4.0-5.4 BBBAA Ryukyu Islands
O: 6DEC2024 22:52:37 29.3N 130.3E mb=4.5 EMSC RYUKYU ISLANDS, JAPAN
P: 3DEC2024 167826 29.0N 131.0E 4.0-5.4 BAAAA Kyushu Japan
P: 7DEC2024 167854 31.0N 131.0E 3.5-5.1 ABAAA Kyushu, Japan area
O: 7DEC2024 03:44:54 37.8N 135.8E mb=4.1 EMSC SEA OF JAPAN
P: 3DEC2024 167858 37.0N 137.0E 3.5-5.0 BAAAA No. Honshu, Japan
O: 6DEC2024 21:42:30 42.1N 142.3E mb=4.9 EMSC HOKKAIDO, JAPAN REGION
P: 10DEC2024 167891 41.0N 141.0E 3.5-5.4 BBAAA Hokkaido, Japan
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 06DEC2024 16:48:41 30.6N 114.4W ML=3.9 EMSC GULF OF CALIFORNIA
O: 6DEC2024 21:35:17 30.5N 114.3W ML=3.3 EMSC GULF OF CALIFORNIA
P: 3DEC2024 167865 30.2N 114.2W 2.0-3.9 BAAAA SW U.S.A
O: 6DEC2024 07:45:46 30.9N 115.5W ML=3.0 EMSC BAJA CALIFORNIA, MEXICO
P: 7DEC2024 167868 32.4N 115.8W 2.5-4.4 ABAAA So. California
O: 6DEC2024 15:38:41 33.6N 118.3W ML=2.0 EMSC SAN PEDRO CHANNEL, CALIFORNIA
P: 10DEC2024 167871 33.6N 118.5W 2.5-4.4 BAAAA So. California
O: 7DEC2024 00:44:42 33.8N 117.0W ML=2.4 EMSC SOUTHERN CALIFORNIA
P: 5DEC2024 167870 33.9N 116.9W 2.5-4.8 AAAAA So. California
O: 6DEC2024 09:34:49 34.1N 118.2W ML=2.3 EMSC GREATER LOS ANGELES AREA, CALI
P: 4DEC2024 167871 33.9N 118.3W 2.5-4.4 AAAAA So. California
O: 6DEC2024 15:34:38 36.0N 121.5W MD=2.3 EMSC OFFSHORE CENTRAL CALIFORNIA
P: 4DEC2024 167843 36.2N 121.8W 2.5-4.7 AAAAA Central California
O: 6DEC2024 13:36:36 36.4N 120.2W MD=2.2 EMSC CENTRAL CALIFORNIA
P: 2DEC2024 167844 36.6N 120.7W 2.5-4.4 BAAAA Central California
O: 7DEC2024 01:17:22 36.6N 121.2W MD=2.1 EMSC CENTRAL CALIFORNIA
P: 6DEC2024 167843 36.8N 121.3W 2.5-4.7 AAAAA Central California
O: 7DEC2024 02:20:58 37.4N 114.3W ML=2.2 EMSC NEVADA
P: 9DEC2024 167841 37.8N 115.8W 2.5-4.4 AABAA California/Nevada area
O: 6DEC2024 09:55:23 39.8N 120.7W MD=2.3 EMSC NORTHERN CALIFORNIA
O: 06DEC2024 10:28:21 39.8N 120.7W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 5DEC2024 167905 40.0N 120.9W 2.5-4.9 AAAAA Northern California
NEIC reported earthquakes of M 2.5 in northeastern California were felt with intensity up to IV in the area(s) of northeastern California at Mineral.
O: 6DEC2024 10:42:37 40.3N 121.5W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 3DEC2024 167905 40.2N 121.2W 2.5-4.8 BAAAA Northern California
NEIC reported earthquakes of M 2.6 in Central California were felt with intensity up to IV in the area(s) of Central California at Lemoore.
O: 07DEC2024 02:34:01 40.1N 123.9W MD=2.4 EMSC NORTHERN CALIFORNIA
O: 06DEC2024 15:44:31 40.5N 123.8W MD=2.4 EMSC NORTHERN CALIFORNIA
O: 07DEC2024 01:12:22 40.4N 123.8W MD=2.3 EMSC NORTHERN CALIFORNIA
O: 6DEC2024 09:05:19 40.3N 123.8W MD=2.9 EMSC NORTHERN CALIFORNIA
P: 5DEC2024 167846 39.3N 123.2W 2.5-4.4 AAAAA Central California
O: 6DEC2024 17:45:49 41.9N 119.6W ML=2.2 EMSC NEVADA
P: 8DEC2024 167909 42.2N 120.3W 2.0-4.1 AAAAA Oregon state, U.S.
O: 06DEC2024 13:24:26 40.2N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 18:48:49 40.2N 124.5W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 20:15:46 40.2N 124.9W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 20:52:11 40.2N 124.8W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 03:34:11 40.2N 124.5W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 07:01:01 40.3N 124.4W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 07:01:46 40.3N 124.1W Mw=4.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 07:05:56 40.3N 124.0W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 07:23:22 40.3N 124.5W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 07:26:53 40.3N 124.0W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 08:06:02 40.3N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 08:28:25 40.3N 124.5W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 08:33:44 40.3N 124.0W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 08:38:46 40.3N 124.6W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 09:04:16 40.3N 124.9W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 09:31:18 40.3N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 09:39:15 40.3N 124.0W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 09:53:03 40.3N 124.5W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 09:57:30 40.3N 124.7W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 10:01:02 40.3N 124.8W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 10:02:06 40.3N 124.0W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 10:53:58 40.3N 124.8W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 11:15:36 40.3N 124.7W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 11:47:55 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 12:01:01 40.3N 124.0W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 13:01:50 40.3N 124.0W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 13:07:39 40.3N 124.0W Mw=3.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 13:18:27 40.3N 124.5W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:36:13 40.3N 124.9W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:58:22 40.3N 124.7W Mw=4.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 15:42:40 40.3N 124.6W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 15:43:23 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 15:50:23 40.3N 124.0W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 16:07:23 40.3N 124.4W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 16:13:28 40.3N 124.5W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 17:07:43 40.3N 124.5W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 17:11:46 40.3N 124.7W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 18:28:37 40.3N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 18:36:50 40.3N 124.3W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 19:56:54 40.3N 124.5W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 20:01:06 40.3N 124.5W Mw=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 20:05:18 40.3N 124.5W Mw=3.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 21:19:43 40.3N 124.1W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 21:28:03 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 21:31:19 40.3N 124.5W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 21:48:11 40.3N 124.6W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 21:49:17 40.3N 124.8W Mw=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 21:53:55 40.3N 124.6W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 22:07:57 40.3N 124.0W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 22:20:55 40.3N 124.4W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 22:47:33 40.3N 124.5W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 23:21:12 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 23:32:29 40.3N 124.6W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 00:57:40 40.3N 124.6W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 01:02:10 40.3N 124.1W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 02:20:21 40.3N 124.7W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 02:44:05 40.3N 124.8W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 03:20:57 40.3N 124.5W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 03:58:09 40.3N 124.6W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 04:22:05 40.3N 124.1W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 05:07:54 40.3N 124.9W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 05:40:18 40.3N 124.6W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 05:44:29 40.3N 124.5W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 06:02:08 40.3N 124.4W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 06:41:30 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 07:13:33 40.4N 124.1W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 07:25:33 40.4N 124.7W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 08:00:58 40.4N 124.0W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 08:02:34 40.4N 124.9W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 10:38:30 40.4N 124.7W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 11:05:14 40.4N 124.0W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 11:41:38 40.4N 124.8W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 11:56:08 40.4N 124.0W Mw=3.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 12:03:47 40.4N 124.9W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 12:05:12 40.4N 124.8W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 12:14:18 40.4N 124.0W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 13:28:45 40.4N 124.0W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 13:40:51 40.4N 124.2W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 13:43:38 40.4N 124.9W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:01:36 40.4N 124.0W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:17:59 40.4N 124.1W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:51:25 40.4N 124.7W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 14:52:27 40.4N 124.6W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 15:15:44 40.4N 124.2W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 15:39:19 40.4N 124.6W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 16:38:15 40.4N 124.1W ML=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 18:58:46 40.4N 124.3W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 22:56:16 40.4N 124.8W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 23:02:36 40.4N 124.8W Mw=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 00:31:17 40.4N 124.0W ML=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 00:37:22 40.4N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 01:00:56 40.4N 124.7W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 01:09:56 40.4N 124.1W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 04:58:46 40.4N 124.9W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 06:12:23 40.4N 124.2W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 07DEC2024 06:33:01 40.4N 124.9W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 15:54:51 40.5N 124.8W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 18:40:59 40.5N 124.2W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 6DEC2024 18:40:31 40.1N 124.8W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
ALASKA
O: 6DEC2024 09:07:11 62.3N 150.8W ML=3.1 EMSC CENTRAL ALASKA
P: 6DEC2024 167949 62.7N 149.3W 3.2-5.2 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
No earthquakes of M>=2 were located in the Rocky Mountain region today.
EASTERN U.S./CANADA
O: 6DEC2024 18:38:10 35.8N 90.5W ML=2.2 EMSC ARKANSAS
O: 6DEC2024 08:41:33 36.1N 89.8W MD=2.2 EMSC SOUTHEASTERN MISSOURI
P: 7DEC2024 167856 35.0N 89.0W 2.0-4.1 AAAAA New Madrid area
O: 6DEC2024 20:37:49 36.6N 98.5W ML=2.5 EMSC OKLAHOMA
P: 3DEC2024 167879 35.0N 97.0W 2.0-4.3 BBBAA Southern Plains
HAWAII
No earthquakes of M>=3 were located in Hawaii.
December 9, 2024
The strongest earthquakes in the U.S. or Canada today occurred as a series of
events of M 6.0, 6.2, 6.3 in the central Andreanof Islands, Aleutians, Alaska.
NEIC reported they were felt in Adak, Alaska. This series is at 36 degrees (360/10)
from the M 7.0 in Northern California of December 6 and is most likely far-field
aftershocks due to strong energy associated with the California events.
The series of moderate aftershocks off the coast of northern California also
continued today with a number of events of M>=3 and M>=4. These were generally
felt lightly in the area of Ferndale and Petrolia. A classical series of
far-field aftershock of the California mainshock of M 7.0 of December 6 today
included a series of strong or near-strong quakes and is detailed below in
this summary.
Far field seismicity is generally enhanced at nodal distances near 360/n degrees
where n is a small integer. At the time of the California event this summary noted the possibility of
an extensive far-field aftershock series as:
"Antipodal (~180 degrees)
Coast of Northern California to Southern Indian Ocean
Outer shadow zone edge (141-148 degrees)
Coast of Northern California to Comores Islands,
Node 3 (120 degrees)
Coast of Northern California to Balleny Is, Sumba, Bali, South Georgia, Java, Nicobar Islands, Sumatra,
Inner shadow zone edge (101-110 degrees)
Coast of Northern California to Celebes, Turkmenistan, Assam, India, China, Iran, Mid-Atlantic, New Zealand, Myanmar, Ceram, Halhahera, Molucca, Cyprus, Crete, Greece, Ceram, Christchurch, New Zealand, Molucca, Afghanistan, Caucasus, Irian Jaya, Mindanao,
Node 4 (90 degrees)
Coast of Northern California to Algeria, New Guinea, Romania, Kermadec Is. New Ireland, Algeria, Central Chile, Spain, Taiwan, Algeria, Morocco, China, Bismarck Sea, Serbia, New Guinea, Central Mid-Atlantic
Node 5 (72 degrees)
Coast of Northern California to England, Azores, Tokyo, Japan, Tonga, Samoa, North Sea, Southern Peru, Siberia
Node 6 (60 degrees)
Coast of Northern California to Southern Kuril Islands, Colombia, Ecuador, northern Peru
Node 7 (52 degrees)
Northern California to coast of Panama, Dominican Republic, Puerto Rico, Kamchatka, South of Panama" December 5-6, 2024)
The strongest earthquakes in the U.S. or Canada today occurred as a series of
events of M 6.0, 6.2, 6.3 in the central Andreanof Islands, Aleutians, Alaska.
NEIC reported they were felt in Adak, Alaska. This series is at 36 degrees (360/10)
from the M 7.0 in Northern California of December 5 and is most likely far-field
aftershocks due to strong energy associated with the California events.
Mt. Kanlaon erupted today north of Mindanao, Philippines in the Negros Occidental region in Visayas. This eruption at 10.4N 123E included a magmatic
eruption and is likely to include explosive eruption. Evacuations are warrented
accorded to PHIVOLCS. Mt. Kalaon is located at 100-101 degrees from the M 7.0
off northern California of December 5, 2024 and may have been excited by energy from
that source.
A strong earthquake of M 6.0 also occurred in the Kuril Islands where NEIC reported
it was felt with intensity II in Shibetsu, Hokkaido Japan. This epicenter is at the
sixth node (360/6=60 degrees) from the M 7.0 off Northern California and is probably
a far-field aftershock from that event.
A moderately strong earthquake was widely felt in El Salvador today. NEIC reported this event with M 5.6 was felt with maximum intensity VI in La Union and IV in Anamoros, San Salvador, Santiago de Maria, Choluteca, and in Honduras at Bodega de Los Tangos, Yamaranguila, Marcala,; III in El Salvador at Gotera Morazan, Chirilagua and in Honduras at Choloma, Tegucigalpa, Las Tapias, Valle de Angeles, Yaguacire and La Esperanza among others.
This epicenter is located at 40 degrees (360/9) from the earthquake of M 7.0
off northern California of December 5 and was likely a far-field aftershock
of that event as previously described in this summary.
A series of moderately strong earthquakes including an M 5.8, 5.3, 4.4, 5.6
occurred today on the Central East Pacific Rise. These unfelt events were
concentrated around local solar noon and were probably enhanced by energy from
the tides which concentrate near this hour. This epicenter is at 51.3-51.4 degrees
from the M 7.0 off northern California of December 5. This is at the seventh
node (360/7=51.4 degrees) from California and is almost certainly a sign that
these events in the East Pacific were far-field aftershocks from California.
NEIC reported earthquakes of M 2.7 in Missouri were felt with intensity up to IV in the area(s) of Missouri at Lilbourn, Marston, Portageville and perhaps as far as Evansville, Indiana.
A pair of moderate earthquake also occurred today with M 5.1 and M 4.8 in
Kamchatka, Russia. These epicenters are also at the 51 degree distance (node 7)
from the M 7.0 in California.
The earthquakes in the East Pacific Rise were closely associated with an M 4.8
in the Balleny Islands south of New Zealand. While unfelt this event is at 120 degrees (360/3)
degrees from the M 7.0 off California of December 5 and is a likely far-field
aftershock of that event.
Earlier in the day an M 5.2 hit in Iceland near the antipode of the Balleny Islands.
This event is likely a far-field aftershock of the M 7.0 in California as it occurred
at the sixth node (360/6=60 degrees) from the California event. It was not
reported felt.
NEIC reported earthquakes of M 3.0 in Central California were felt with intensity up to II in the area(s) of Central California in Palmdale, Hollister, Paicines, Santa Rosa.
NEIC reported earthquakes of M 3.0 in Western Texas were felt with intensity up to IV in the area(s) of Western Texas at Stanton, Tarzan, Midland.
NEIC reported earthquakes of M 3.9 west of Oregon were felt with intensity up to III in the area(s) of Oregon at Grants Pass.
NEIC reported earthquakes of M 2.6 in West Yellowstone, Montana were felt with intensity up to III in the area(s) of Yellowstone Montana.
No Tropical Cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5190 0037 0042 0047 C2.5 (December 8, 2024) 1.5E-03
5200 0107 0120 0136 C5.5 (December 8, 2024) 7.5E-04
Iceland M 5.2 01:50 UT
5220 0226 0231 0238 C2.0 (December 8, 2024) 9.9E-04
Molucca Sea M 5.0 02:44 UT
5240 0453 0459 0502 C2.3 (December 8, 2024) 8.5E-04
Qinghai, China M 4.3 04:53 UT
5270 0502 0507 0511 C2.4 (December 8, 2024) 1.4E-03
5290 0823 0832 0850 C3.2 (December 8, 2024) 5.7E-03
Hindu Kush M 4.2 08:29 UT
5280 0850 0906 0910 X2.2 (December 8, 2024) 7.0E-02
5340 1006 1013 1021 C2.9 (December 8, 2024) 2.6E-03
Kurils M 6.0 10:25 UT
5360 1153 1210 1223 C8.0 (December 8, 2024) 8.9E-03
Oaxaca M 4.2 11:53 UT
5390 1528 1538 1550 C4.5 (December 8, 2024) 4.5E-03
5400 1600 1611 1618 M1.5 (December 8, 2024) 9.5E-03
Ceram M 4.9 16:07 UT
No California M 4.3 16:23 UT
East Pacific Rise M 5.3 16:26 UT
5410 1707 1718 1728 C5.1 (December 8, 2024) 5.0E-03
Minahasa Sulawesi M 4.9 17:11 UT
5430 2123 2128 2134 C3.0 (December 8, 2024) 7.1E-04
5440 2134 2138 2143 C3.9 (December 8, 2024) 1.9E-03
Solomon Is. M 4.3 21:34 UT
Andreanof Is. M 4.8 21:42 UT
GEOMAGNETIC FIELD: unsettled December 9-11. Solar M-flare chance: 60% X-class: 10% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 7 14 4 16:00 5 103 178
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
December 8, 2024
The strongest earthquake in the world today was an M 6.1 in the Kuril Islands. NEIC reported it was felt with intensity II in Shibetsu, Hokkaido, Japan.
NEIC reported an earthquake of M 2.5 in Northern California was felt with intensity up to II in the area(s) of Northern California at Chester, Shingle Springs and in Dayton, Nevada.
NEIC reported earthquakes of M 5.0 in Sulawesi were felt with intensity up to III in the area(s) of Sulawesii at Bitung.
NEIC reported earthquakes of M 4.5 in SE Honshu, Japan were felt with intensity up to II-III in the area(s) of SE Honshu, Japan in Chiba, Kanagawa, Saitama, and Tokyo Prefectures.
NEIC reported earthquakes of M 3.1 in Southern California were felt with intensity up to II-III in the area(s) of Southern California at Claremont, Vista, Thermal and Murrieta.
NEIC reported an earthquake of M 4.1 in the India-Xizang border was felt with intensity up to IV in the area(s) of the India-Xizang border at Joshimath Uttaranchal, India.
NEIC reported earthquakes of M 4.9 in Honduras were felt with intensity up to IV in the area(s) of Honduras at Yaguacire Francisco Morazan.
NEIC reported earthquakes of M 2.7 in Southern California were felt with intensity up to II in the area(s) of Southern California in Oceanside and San Marcos.
No Tropical Cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4790 0010 0017 0024 C4.6 (December 7, 2024) 3.1E-03
Java M 4.9 00:2 UT
4820 0136 0145 0150 C3.2 (December 7, 2024) 2.0E-03
4840 0223 0230 0234 C2.7 (December 7, 2024) 1.5E-03
4870 0438 0446 0458 C3.1 (December 7, 2024) 3.3E-03
4880 0530 0541 0549 C3.4 (December 7, 2024) 3.5E-03
4900 0701 0708 0713 C2.7 (December 7, 2024) 1.7E-03
4920 0742 0749 0753 C4.8 (December 7, 2024) 2.0E-03
So Sumatra M 4.9 07:46 UT
Taiwan M 4.9 07:48 UT
4930 0755 0800 0806 C3.4 (December 7, 2024) 1.1E-03
Seram M 4.4 07:56 UT
4940 0850 0859 0912 C7.8 (December 7, 2024) 6.9E-03
Nicaragua M 4.9 09:06 UT
4960 1026 1030 1036 C7.0 (December 7, 2024) 2.8E-03
Andreanof M 4.2 10:33 UT
South Carolina M 2.0 10:25 UT
4970 1040 1053 1118 C5.3 (December 7, 2024) 7.6E-04
4990 1300 1308 1315 M2.3 (December 7, 2024) 9.9E-04
Central Peru M 4.7 13:24 UT
5020 1456 1502 1506 C2.6 (December 7, 2024) 1.5E-03
5040 1528 1535 1541 C3.6 (December 7, 2024) 2.5E-03
5050 1717 1721 1726 C2.3 (December 7, 2024) 1.2E-03
So. Mid-Atantic M 5.8 17:31 UT
5070 1805 1815 1820 C5.5 (December 7, 2024) 1.7E-03
5080 1820 1826 1832 C6.4 (December 7, 2024) 4.5E-03
5100 2034 2038 2042 C2.4 (December 7, 2024) 1.1E-03
Loyalty Is. M 4.6 21:02 UT
5150 2153 2215 2226 M3.2 (December 7, 2024) 3.1E-02
Xizang M 4.5 22:07 UT
Molucca Sea M 4.2 22:10 UT
Honshu M 4.5 22:39 UT
GEOMAGNETIC FIELD: unsettled December 8-10. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 6 7 5 10:00 4 91 193
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
December 7, 2024
The strongest earthquake in the world today was an M 5.5-6.0 in the Molucca Sea,
Indonesia. BMG gave this event at 1.7N 121.2E with M 6.0. No felt data was
available from BMG for this event although mapping at the BMG website indicates
it was felt with intensity up to III throughout the area. A similar event
of M 5.1 was located south of this later in the day. It was reported by BMG
to have been felt with intensity IV in Taliabu Baratand III in Banggai at Boka, Lede, Tabona among others.
These epicenters are both at 106 degrees from the M 7.0 off the coast of northern
California of December 5 and is probably a far-field aftershock from that event.
An earthquake of M 4.8 today occurred in the West Chile Rise. It was not felt.
This epicenter is located at 90 degrees (360/4=90 degrees) from the M 7.0 off
northern California of December 5 and is probably a far-field earthquake associated
with that source.
NEIC reported an earthquake of M 5.3 in Southern Chile was felt with intensity up to V-VI in the area(s) of Southern Chile in Araucania at Carahue, Nueva Imperia; IV in Temuco, Villarrica and III in Pitrufquen. Also felt lightly in Los Lagos at Rio Bueno and Valdivia and in Bio Bio and Santiago.
EMSC reported moderate shaking in Chile at Temuco, Valdivia, Corral and Pucon. This epicenter - like the M 4.8 in the West Chile Rise - is located at 90 degrees (360/4=90 degrees) from the M 7.0 off
northern California of December 5 and is probably a far-field earthquake associated
with that source.
NEIC reported earthquakes of M 2.6 in Central California were felt with intensity up to IV in the area(s) of Central California at Lemoore.
NEIC reported earthquakes of M 2.5 in northeastern California were felt with intensity up to IV in the area(s) of northeastern California at Mineral.
NEIC reported earthquakes of M 5.1 in Tonga were felt with intensity up to IV in the area(s) of Tonga at Pangai Ha'apai.
This epicenter is near the fifth node from the M 7.0 in northern California (360/5=72 degrees)
and this may be a far-field aftershock of that event.
NEIC reported an earthquake of M 3.1 in Central Alaska was felt with intensity up to III in the area(s) of Central Alaska at Talkeetna.
No Tropical Cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4540 0057 0106 0112 C3.5 (December 6, 2024) 2.6E-03
Honshu M 4.4 01:03 UT
4570 0209 0216 0230 C2.9 (December 6, 2024) 3.2E-03
4610 0436 0443 0450 C2.6 (December 6, 2024) 2.1E-03
4620 0459 0510 0529 C3.8 (December 6, 2024) 6.8E-03
New Guinea M 4.0 05:13 UT
Kyushu M 4.8 05:26 UT
4640 0642 0658 0709 C8.0 (December 6, 2024) 8.5E-03
No. California M 4.2 07:02 UT
4660 0756 0805 0812 C4.8 (December 6, 2024) 1.2E-03
4670 0906 0920 0942 M1.2 (December 6, 2024) 1.8E-02
4740 1301 1328 1349 C3.0 (December 6, 2024) 8.3E-03
4680 1349 1416 1430 C3.2 (December 6, 2024) 9.2E-04
East Pacific Rise M 4.9 13:57 UT
4690 1454 1459 1507 C5.9 (December 6, 2024) 3.6E-03
No. California M 4.2 14:58 UT
4700 1552 1605 1619 C5.1 (December 6, 2024) 6.3E-03
No. California M 4.0 15:51 UT
4710 1743 1754 1758 C3.9 (December 6, 2024) 2.5E-03
Haiti M 4.1 17:42 UT
4750 2108 2115 2119 C3.4 (December 6, 2024) 2.0E-03
4760 2212 2218 2227 C2.8 (December 6, 2024) 1.6E-03
4770 2252 2256 2300 C6.8 (December 6, 2024) 2.4E-03
Ryukyu Is. M 4.5 22:52 UT
4780 2323 2329 2335 C4.8 (December 6, 2024) 3.0E-03
GEOMAGNETIC FIELD: unsettled December 7-9. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 5 2 4 07:00 2 103 178
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
MAJOR EARTHQUAKE HITS OFF COAST OF NORTHERN CALIFORNIA
EARTHQUAKE SUMMARY FOR DECEMBER 5,2024
A major earthquake of M 7.0-7.3 occurred on December 5, 2024 near local noon off the coast of Northern California. It was followed by a series of moderate felt classical aftershocks and a series of regional aftershocks. A pair of foreshocks occurred on December 4, 2024 and were described in this summary in the previous issue as:
"The strongest earthquakes in the U.S. or Canada today were an M 4.4 and M 4.2 off the coast of northern California. NEIC reported they may have been felt lightly in Eureka and Arcata, and at Orick and Antelope with intensity II-III in California. The M 4.4 is the strongest event within about 100 km of this epicenter since an M 4.4 on October 24. The only other event of M>=4.4 in this area in the past year was and M 4.9 on February 2, 2024. At the time this summary noted:
"An earthquake of M 4.9 also occurred today off the coast of Northern California. NEIC reported it was felt with intensity III in Northern California at Petrolia. NEIC reported an aftershock of M 3.4 off the coast of Northern California was felt with intensity up to III in the area(s) of Northern California in Petrolia. NEIC reported this earthquake of M 3.4 off the coast of Northern California was felt with intensity up to III in the area(s) of Northern California in Petrolia. EMSC reported moderate shaking in Fortuna, California. A foreshock of M 2.7-3.3 was also felt lightly in Petrolia, California. The last earthquake off the coast of Northern California with M>=4.9 occurred on May 21, 2023 and today's event is probably an aftershock of that mainshock. At that time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 5.6 off the coast of Northern California. NEIC reported it was felt with maximum intensity VI in California at Petrolia and II-III in Ferndale, Loleta, Rio Del, Fortuna, Samoa, Hydesville, Eureka, Scotia, and as far as the coast of Oregon and Central California. This is near the antipode of the M 6.8 in the Prince Edward Islands which occurred several hours earlier in the day. Triggering associated with that event possible. This event is near the fourth node (90 degrees) from the major
...
Earthquakes of equal or larger magnitude in this area of California have most recently occurred as an M 6.2 on December 20, 2021, an M 5.8 on March 9, 2020 and an M 5.8 on January 25, 2018." (May 21, 2023, February 2, 2024)
These events occurred at the start of Solar Flare 4140 - of class C3.5. and may have been promoted by SFE from that event.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4140 1137 1145 1151 C3.5 (December 4, 2024) 2.5E-03
Coast of No. California M 4.3 11:37 UT
South Sandwich Is. M 4.9 11:46 UT" (December 4, 2024)
The Joint Typhoon Warning Center (JTWC) gave today's mainshock M 7.3 and several other magnitudes were given by various international agencies, but it appears to qualify as a "major" earthquake. This event occurred near the end of a minor C-class solar flare. It also occurred at an epicenter where the second strongest M-class flare of the day was at maximum at exactly local solar midnight as seen in SWPC data:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4340 0638 0641 0645 C3.3 (December 5, 2024) 1.3E-03
4350 0656 0709 0733 M1.0 (December 5, 2024) 1.6E-02
4370 0812 0820 0824 M1.1 (December 5, 2024) 4.2E-03
Northern California M 7.0 18:44 UT (antipodal local solar midnight 08:20 UT)
4470 1917 1930 1935 C3.8 (December 5, 2024) 7.0E-04
East Pacific Rise M 5.1 19:41 UT
Northern California M 7.0 18:44 UT
It also occurred while a northeast clipper was hitting the northeastern U.S. Both of these are possible triggers for such an event. The epicenter of this earthquake is about 104-105 degrees from a series of events including an M 5.7 in southern Iran yesterday and may have been promoted by energy from that source.
A tsunami warning for the west coast of the U.S. was issued but tsunamis from large earthquakes in this area are not usually powerful and it is likely that any tsunami associated with today's event would be in the centimeters height range. This warning was later withdrawn when no significant tsunami waves were observed.
A series of moderate earthquake in the Geysers area of northern California followed the M 7.0 off the California coast. They were likely triggered by P- and/or S-waves from that earthquake. This series included events of M 2.5 and 4.3. NEIC reported these were felt with intensity up to III in northern and Central California at Felton, San Jose, Santa Rosa, Yuba City, Rohnert Park and Fremont.
The last earthquake in the Geysers area of California with M>=4.3 occurred
September 7, 2024 with M 4.3, the last of larger magnitude was an M 4.5 on June 8, 2024. At the time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 4.5 in Northern California. NEIC reported it was felt with maximum intensity V in the Geysers, California. This earthquake occurred within minutes of local solar noon and was probably promoted by strong tidal stresses which maximize near this hour. EMSC reported strong shaking in Middletown, California. The last earthquake in the Geysers area of Northern California with M>=4.5 occurred on June 3, 2023 more than a year ago with M 4.5. The last event in the area of larger magnitude occurred as an M 5.0 on December 14, 2016.
"The strongest earthquake in the U.S. or Canada today was an M 4.5 in the Geysers region of Northern California. NEIC reported it was felt with maximum intensity IV in Kelseyville and Middletown with intensity II-III in Geyserville, Healdsburg, Hidden Valley Lake, Cloverdale, Lower Lake, Calistoga, Windsor and as far to the south as San Francisco, California. This is an area where fluid flow often controls seismicity. Strong tidal stresses can be an effective means to move fluids. So it is not surprising that this earthquake occurred in conjunction with today's full moon
...
Today's earthquake is the strongest event in the Geysers area since an M 5.0 on December 14, 2016. That earthquake was likely the strongest recorded in the Geysers region of California as reported at the time in this summary:
"While smaller earthquakes in the Geysers, California are nearly continuous, events of larger magnitude are uncommon. Today's earthquake may be the largest ever recorded in the Geysers area, in fact. An M 5.0 was recorded on May 7, 1955 but magnitudes were not well determined at the time. No other events in the Geysers area have reached M>=5.0 until today." (December 14, 2016, June 8, 2024)
Forecast 167846 had expected today's activity in the Geysers was likely around December 7 within about 10 km of these epicenters.
O: 05DEC2024 18:48:34 38.8N 122.8W MD=2.3 EMSC NORTHERN CALIFORNIA
O: 05DEC2024 18:50:36 38.9N 122.8W MD=2.2 EMSC NORTHERN CALIFORNIA
O: 5DEC2024 18:47:36 38.8N 122.8W ML=4.2 EMSC NORTHERN CALIFORNIA
O: 5DEC2024 18:47:36 38.8N 122.8W ML=4.3 ANSS NORTHERN CALIFORNIA
P: 7DEC2024 167846 38.8N 122.8W 2.5-4.4 AAAAA Central California
Today's mainshock was reported by NEIC to have been felt with damage with intensity VIII at Redcrest and VII in Ferndale and Rio Dell. Intensity VI was reported thoughout most of Northern California including at Alderpint, Carlotta, Fortuna, Garberville, Hydesville, Loleta, Myers Flat, Scotia, Whitethorn and Six Rivers National Forest. Intensity V was felt as far as 150 km of the epicenter; IV up to 300 km as far as Oregon and III in Nevada and the remainder of California. Light shaking of II was reported in Arizona, Washington, Oregon, British Columbia, and within about 500 km of the epicenter. Earthquakes in this area can occur in pairs and can help trigger far-field seismicity, so readers are advised not to relax quite yet.
The last earthquake within about 200 km of today's epicenter off the coast of
Northern California with M>=7 occurred as an M 7.0-7.1 on June 15, 2005. Other
such event (all of M 7.0-7.1) in the past 35 years occurred on August 17, 1991, April 25, 1992, and September 1, 1994. At the time of the last such earthquake off the coast of northern California, this summary noted:
"Strong earthquakes occurred today in two areas of the U.S. and Canada. The strongest of these was an M 7.0-7.5 which occurred late tonight off the coast
of Northern California. This was preceded by an earthquake of M6.6-6.8 in the Rat/Andreanof Islands region of the central Aleutian Islands, Alaska. A tsunami warning was issued by the USGS following the event off the coast of Northern California. That earthquake was strongly felt along the coast of Oregon and California and was reported slightly felt as far away as Keller, Texas and Berthoud, Colorado. It was felt to the south as far as Los Angeles and as far to the north as Colville, Washington more than 1000 km away from the epicenter. The quake was also felt in the Seattle area. Maximum felt intensity was VI at Myrtle Point, Oregon. This is the first event located in the region off the coast of California (38-42N 124-130W) since an earthquake of M 7.1 on Sept. 1, 1994 (M 7.1) and April 25, 1992 (M 7.1). The largest earthquake previously located in the region was an M 7.2 on Nov. 8, 1980 (NEIC data) If the current magnitude of M 7.4 is not revised downward, this would be the strongest earthquake ever recorded in this region off the northern coast of California (the largest previous had been M 7.3 on Jan. 31, 1922). This summary had expected a strong earthquake in the region could occur at this time. We had emphasized this in our lead article in this summary three weeks ago on May 23, 2005 and to a lesser extent on Feb. 25, 2005 in this summary. Readers may read these warning summaries in full by clicking on more> below. The area was under very strong seismic watch conditions at the time of the quake. This seismic watch arose from triggering effects from the landfall of Tropical Storm Arlene, a strong geomagnetic storm two days ago and the occurrence of a great earthquake in Chile yesterday (M 7.8-7.9) in addition to a recent activation of the area." (June 15, 2005)
In the previous issues this summary had detailed the lull in major seismic global activity preceding today's event (see summaries and updates for December 1-5 for details). This earthquake at M 7.0 is a "major event" earthquake" and occurs 102-103 days after the last earthquake of M 6.9 in Tonga on August 26, 2024, not quite breaking the length of the previous quiet period of 103-104 days in 2019.
When a slightly smaller event of M 6.9 hit the coast of Northern California on March 10, 2014, this summary noted the strong quiet period preceding it as:
"A strong earthquake of M 6.9 hit off the coast of Northern California early on March 10 (March 9 local time). NEIC reported this earthquake was widely felt along the coast of northern California. Maximum intensity V was felt at Blue Lake and Samoa with intensity IV at Eureka, Ferndale, MacKinleyville, North Bend, Whitethorn, Trinidad, Rio Dell, Loleta, Hydesville, Barberville, Fortuna, Ferndale, Bayside, Arcata, Littleriver, California. Intensity II-III was felt in Brisbane, Daly City, Billbrae, San Gregorio, San Francisco, Oakland, Albany, San Rafael, Bodega, Inverness, Mill Valley, Aptos, Boulder Creek, Santa Cruz, Scotts Valley, Santa Rosa, Albion, Compiche, Elk, Fort Bragg, Guerneville, Mendocino, Ukiah, Willits, Bridgeville, Burnt Ranch, Carlotta, Crescent City, Klamath, Korbel, Myers Flat, Salyer, Somes Bar, Zenia, Davis, Esparto, Lincoln,Dutch Flat, Sacramento, Chico, Grass Valley, Magalia, Nevada City, Paradise, Quincy, Chico, Redding, Big Bar, Dunsmuir, Gerber, Hayfork, Lewiston, Mount Shasta, Palo Cedro, Weaverville, Crescent City, Klamath, Point Arena and San Mateo. It was also felt in Oregon with intensity IV in North Bend and II-II in Klamath Falls, Selma, O'Brien, Grants Pass, Cave Junction, North Bend, Gold Beach, Brookings and Eugene. A foreshock of M 3.3 occurred about 15 minutes before the mainshock but was not reported felt in the area. A smaller foreshock occurred about noon today. NEIC reported this earthquake of M 2.6 off the coast of Northern California was felt with intensity II-III in the area(s) of Rio Dell, California.
This is the strongest earthquake to hit off northern California since an M 7.2 on June 15, 2005 and an M 7.1 on September 1, 1994. A series of events in July and August, 1991 and on April 25, 1992 registered M 6.9-7.1 in the area. It is also the strongest earthquake in the United States outside Alaska since the Easter Day earthquake in Baja California of April 4, 2010. The epicenter of that event, however was not within the borders of the U.S. and the last event within the U.S. territorial borders were the events of June 2005 and September 1994.
It is also the strongest earthquake in the world since an event of M 7.8 in the Scotia Sea on November 17, 2013." (March 11, 2014)
Following the M 6.9 in 2014, this summary reported the following far-field triggering relations in the following two months. It is likely that these areas will be equally likely to see enhanced seismicity from the M 7.0 on December 5, 2024:
Antipodal (~180 degrees)
Coast of Northern California to Southern Indian Ocean
Outer shadow zone edge (141-148 degrees)
Coast of Northern California to Comores Islands,
Node 3 (120 degrees)
Coast of Northern California to Balleny Is, Sumba, Bali, South Georgia, Java, Nicobar Islands, Sumatra,
Inner shadow zone edge (101-110 degrees)
Coast of Northern California to Celebes, Turkmenistan, Assam, India, China, Iran, Mid-Atlantic, New Zealand, Myanmar, Ceram, Halhahera, Molucca, Cyprus, Crete, Greece, Ceram, Christchurch, New Zealand, Molucca, Afghanistan, Caucasus, Irian Jaya, Mindanao,
Node 4 (90 degrees)
Coast of Northern California to Algeria, New Guinea, Romania, Kermadec Is. New Ireland, Algeria, Central Chile, Spain, Taiwan, Algeria, Morocco, China, Bismarck Sea, Serbia, New Guinea, Central Mid-Atlantic
Node 5 (72 degrees)
Coast of Northern California to England, Azores, Tokyo, Japan, Tonga, Samoa, North Sea, Southern Peru, Siberia
Node 6 (60 degrees)
Coast of Northern California to Southern Kuril Islands, Colombia, Ecuador, northern Peru
Node 7 (52 degrees)
Northern California to coast of Panama, Dominican Republic, Puerto Rico, Kamchatka, South of Panama
It is of some interest that the M 7.0 in California, the M 5.6 in the Fox Islands and an M 5.1 in the East Pacific Rise today all are at 72 degrees (node 5) from the previous event of major size - the M 6.9 in Tonga of August 26, 2024. This distance often shows far field triggering from major events.
Following is a listing of events in this series of M>=4 that occurred today. A more extensive listing can be found in the "CALIFORNIA" section of this summary.
Forecast 167906 had expected enhanced seismicity in this region within about 20 km of the mainshock epicenter was likely around December 3-7, 2024.
O: 05DEC2024 21:47:11 40.3N 124.9W ML=4.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 18:44:23 40.4N 125.0W Mw=7.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 18:44:23 40.4N 125.0W Mw=7.3 JTWC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 18:46:27 40.4N 125.0W ML=4.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:10:05 40.5N 125.1W ML=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 3DEC2024 167906 40.3N 125.2W 2.5-4.6 AAAAA Off Coast of No. Calif
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
The mainshock off northern California was also accompanied by an M 4,2 several minutes later in Utah. This coincidence has been noted in this summary previously. For example when an M 5.7 occurred in northern Utah on March 18, 2020 and was followed several hours later by an M 5.2 off the coast of northern California this summary noted:
"A moderate earthquake was also felt in Northern California today. This event of M 5.0-5.2 occurred near the coast and was felt with maximum intensity VI in Ferndale and Scotia according to data from NEIC. Intensity V shaking occurred in California at Rio Dell, Fortuna and Eureka and IV in Petrolia and Hydesville with lesser shaking in Loleta, Carlotta and Myers Flat. Light shaking was reported as far as Central California and southern Oregon. Several light aftershocks followed. This is probably a regional aftershock of the M 5.8 which hit the area to the west on March 9, 2020 in a regional activation from Alaska to southern California. This summary had noted this at the time" (March 18, 2020)
Forecasts 167617 and 167882 had expected this area of Utah would be active
at the end of November or early December, 2024.
O: 5DEC2024 18:45:50 38.5N 112.9W ML=4.2 EMSC UTAH
P: 5DEC2024 167882 39.8N 112.7W 2.0-4.2 AAAAA Utah area
P: 24NOV2024 167617 38.7N 112.6W 2.0-4.1 CAAAA Utah area
A regional foreshock occurred about an hour before the M 7.0 off Northern California. This event of M 3.6 off the coast of Baja California was reported by NEIC to have been felt with intensity up to III in California at La Mesa, El Cajon and II in Chula Vista, Imperial Beach, Ramona, San Diego and Spring Valley, California. The last earthquake within about 100 km with larger magnitude of this event off Baja California was recorded on October 20, 2022 with M 3.8. An M 4.4 was recorded about 100 km northwest of today's epicenter on January 15, 2024. At that time this summary noted:
"A moderate earthquake of M 4.4 also occurred today in the area of Southern California south of San Clemente Island where NEIC reported it was felt with intensity up to IV. EMSC reported moderate shaking in San Diego, Irvine, Redondo Beach, Torrance, Lake Elsinore, California and in Mexico at Jardines de Chapultepec. The last earthquake off the coast of southern California within about 100 km of today's epicenter with M>=4.4 occurred on October 16, 2005 with M 4.9. An M 4.4 also occurred about 100 km to the east on February 1, 2010. But most moderate activity in this region is located more than 100 km to the west or east of today's epicenter." (January 15, 2024)
Forecast 167869 had expected enhanced seismicity in this region of Baja California was likely within about 100 km around December 7.
O: 5DEC2024 17:53:23 32.0N 117.7W ML=3.5 EMSC OFFSHORE BAJA CALIFORNIA, MEXI
P: 7DEC2024 167869 32.9N 117.6W 2.5-4.7 AAAAA So. California
A moderately large earthquake of M 5.6 also occurred in the Fox Islands, Aleutians, Alaska today. NEIC reported it was felt with intensity up to IV in Nikolski, Alaska. The last earthquake in the Fox Islands, Alaska of M>=5.6 was an M 6.0 on May 19, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.0 in the Fox Islands. NEIC reported it was felt with intensity up to V in Nikolski, Alaska. This is the first earthquake in the U.S. or Canada of M>=6 in the year 2024 to date. The last such earthquake of M>=6 occurred on December 21, 2023 with M 6.1 and prior to that as a M 6.4 on October 16, 2023. Today's earthquake is also the strongest within about 200 km of today's epicenter since an M 6.8 and 6.6 on January 11, 2022." (May 19, 2024)
This earthquake in the Fox Islands occurred within minutes of local solar midnight and was probably promoted by strong tidal and/or SFE. Forecast 167928 had expected enhanced seismicity within about 100 km of this epicenter was likely around December 6, 2024.
O: 5DEC2024 11:48:03 52.1N 170.9W MW=5.6 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 6DEC2024 167928 52.4N 169.4W 3.5-5.0 AAAAA Fox Islands, Aleutians
Several regional earthquakes of moderate magnitude in the area of the western North America also occurred today and were likely triggered by stress transfer from the M 7.0 in Northern California. The largest of these was an M 4.4 in the Vancouver Island region of Canada. This may be an aftershock of an M 6.5 that hit near this epicenter on July 11, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.4 in the series in Vancouver Island, British Columbia which began July 4, 2024. NEIC reported it was lightly felt with moderate intensity up to IV in Tofino, Canada. EMSC reported light shaking in Chilliwack, Canada. Several moderate aftershocks – including an M 5.4 - were also felt in this region. This summary has extensively covered this swarm in previous issues" (July 11, 2024)
Forecast 167916 had expected today's earthquake in the Vancouver Island
area was likely around December 6.
O: 6DEC2024 06:32:03 49.2N 129.0W MB=4.4 EMSC VANCOUVER ISLAND, CANADA REGIO
P: 6DEC2024 167916 47.9N 129.1W 2.8-5.1 ABAAA Vancouver Island area
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: 5DEC2024 22:04:52 23.8N 121.6E ML=4.3 EMSC TAIWAN
P: 2DEC2024 167835 23.0N 122.0E 4.0-5.4 BAAAA Taiwan
O: 5DEC2024 13:25:59 28.5N 51.9E MB=5.0 EMSC SOUTHERN IRAN
O: 05DEC2024 13:42:25 28.4N 51.6E mb=4.2 EMSC SOUTHERN IRAN
O: 05DEC2024 17:38:46 28.4N 51.8E mb=4.4 EMSC SOUTHERN IRAN
P: 2DEC2024 167833 28.0N 52.0E 3.5-4.9 BAAAA So. Iran/Persian Gulf
O: 5DEC2024 21:58:06 43.6N 106.0E ML=3.8 EMSC CENTRAL MONGOLIA
P: 28NOV2024 167607 39.0N 100.0E 3.5-4.9 CCCAA So. China
O: 6DEC2024 05:54:18 55.3N 166.5E MB=4.0 EMSC KOMANDORSKIYE OSTROVA REGION
P: 6DEC2024 167929 56.0N 165.0E 4.0-5.6 AAAAA Komandorsky Isl
O: 5DEC2024 12:00:11 55.4N 112.2E MB=4.4 EMSC BURYATIYA, RUSSIA
O: 05DEC2024 12:08:33 55.5N 112.1E mb=4.6 EMSC BURYATIYA, RUSSIA
P: 27NOV2024 167681 52.0N 116.0E 3.0-4.4 CCCAA So. Siberia
INDONESIA AND PHILIPPINES
O: 5DEC2024 22:17:22 1.6S 120.3E ML=4.2 EMSC SULAWESI, INDONESIA
P: 3DEC2024 167782 1.0S 120.0E 4.0-5.4 AAAAA Sulawesi area
O: 5DEC2024 08:00:31 2.9S 136.8E ML=4.4 EMSC NEAR N COAST OF PAPUA, INDONES
P: 6DEC2024 167785 4.0S 137.0E 4.0-5.6 ABAAA West Irian, PNG
O: 6DEC2024 05:13:44 4.4S 139.3E ML=4.0 EMSC PAPUA, INDONESIA
P: 6DEC2024 167777 4.0S 141.0E 4.0-5.6 AABAA Papua New Guinea
O: 5DEC2024 22:33:19 6.0S 127.7E MB=4.4 EMSC BANDA SEA
P: 5DEC2024 167765 6.0S 128.0E 4.0-5.4 AAAAA Banda Sea
O: 6DEC2024 05:32:31 8.1S 147.6E MB=4.8 EMSC EASTERN NEW GUINEA REG., P.N.G
P: 7DEC2024 167773 6.0S 148.0E 4.0-5.6 ACAAA New Ireland
O: 5DEC2024 10:29:41 9.2N 126.8E ML=4.4 EMSC MINDANAO, PHILIPPINES
P: 7DEC2024 167799 10.0N 125.0E 3.5-4.9 AABAA Luzon, Philippines
P: 9DEC2024 167759 9.0N 127.0E 4.0-5.4 BAAAA Halmahera
O: 5DEC2024 14:07:42 19.2N 120.9E ML=4.0 EMSC BABUYAN ISL REGION, PHILIPPINE
P: 6DEC2024 167802 19.0N 121.0E 3.5-4.9 AAAAA Luzon, Philippines
No significant (M>=5) or unusual earthquakes were reported in Indonesia or the Philippines today.
CENTRAL AND SOUTH AMERICA
O: 5DEC2024 23:14:14 1.5S 80.5W MB=4.4 EMSC NEAR COAST OF ECUADOR
P: 9DEC2024 167769 1.0S 81.0W 4.0-5.8 BAAAA Ecuador
NEIC reported earthquakes of M 4.4 in Ecuador were felt with intensity up to II in the area(s) of Ecuador in Manta Manabi.
O: 5DEC2024 18:05:56 2.3S 79.7W ML=4.6 EMSC NEAR COAST OF ECUADOR
P: 3DEC2024 167769 4.0S 80.0W 4.0-5.4 ABAAA Ecuador
O: 6DEC2024 03:30:23 10.8N 62.4W MB=4.7 EMSC OFFSHORE SUCRE, VENEZUELA
P: 9DEC2024 167818 11.0N 63.0W 3.4-4.9 BAAAA Windward Islands
NEIC reported an earthquake of M 4.7 in Northern Venezuela was felt with intensity up to IV in the area(s) of Northern Venezuela at in Port of Spain, Trinidad and Tobago.
O: 6DEC2024 01:29:23 14.3S 75.8W ML=4.0 EMSC NEAR COAST OF CENTRAL PERU
P: 9DEC2024 167959 15.0S 76.0W 4.0-5.8 BAAAA Central Peru
O: 5DEC2024 08:35:32 15.8S 71.4W MB=4.4 EMSC SOUTHERN PERU
O: 05DEC2024 18:52:08 15.4S 74.8W ML=4.0 EMSC NEAR COAST OF SOUTHERN PERU
P: 6DEC2024 167959 14.0S 73.0W 4.0-5.6 ABBAA Central Peru
O: 5DEC2024 18:30:38 17.3N 100.7W ML=4.0 EMSC GUERRERO, MEXICO
P: 2DEC2024 167812 17.0N 100.0W 3.5-5.3 BAAAA Oaxaca, Mexico
O: 5DEC2024 10:41:23 18.6S 71.3W MB=4.5 EMSC OFF COAST OF TARAPACA, CHILE
P: 6DEC2024 167965 18.0S 72.0W 4.0-5.8 AAAAA So. Peru/Bolivia
O: 5DEC2024 14:53:51 18.7N 68.1W MD=3.5 EMSC DOMINICAN REPUBLIC REGION
O: 05DEC2024 15:19:24 18.9N 67.8W MD=3.1 EMSC DOMINICAN REPUBLIC REGION
P: 6DEC2024 167814 19.0N 67.0W 3.4-5.4 AAAAA Puerto Rico
P: 8DEC2024 167813 18.0N 68.0W 3.4-5.2 BAAAA Puerto Rico
O: 05DEC2024 14:23:32 19.0N 65.8W MD=3.1 EMSC PUERTO RICO REGION
O: 05DEC2024 14:18:46 19.1N 65.8W MD=3.0 EMSC PUERTO RICO REGION
O: 5DEC2024 09:31:20 19.6N 65.4W MD=3.4 EMSC PUERTO RICO REGION
P: 4DEC2024 167813 18.0N 66.0W 3.4-4.9 ABAAA Puerto Rico
O: 5DEC2024 13:39:53 23.5S 66.8W MW=5.2 EMSC JUJUY, ARGENTINA
P: 7DEC2024 167971 23.0S 66.0W 4.0-5.8 AAAAA Argentina
O: 6DEC2024 00:08:30 33.5S 68.7W ML=4.2 EMSC MENDOZA, ARGENTINA
P: 8DEC2024 167983 33.0S 69.0W 4.0-5.8 AAAAA Central Chile
AFRICA AND EUROPE
O: 5DEC2024 20:53:03 34.6N 33.9E ML=4.2 EMSC CYPRUS REGION
P: 5DEC2024 167850 34.0N 27.0E 3.0-4.6 AACAA Crete
EMSC reported an earthquake of M 4.2 in Cyprus was felt with moderate intensity up to II-III in the area(s) of Cyprus at Kiti, Tersefanou, Larnaca, Aradippou, Livadia, Voroklini, Pyla, Avgorou, Paralimni, Dumlupinar among others.
No significant (M>=5) or unusual earthquakes were reported in Europe today.
SOUTHWEST PACIFIC
O: 5DEC2024 16:46:08 12.3S 167.1E MB=4.8 EMSC SANTA CRUZ ISLANDS
P: 4DEC2024 167969 13.0S 166.0E 4.0-5.4 AAAAA Vanuatu Islands
O: 5DEC2024 12:26:09 18.1S 178.4W MB=4.4 EMSC FIJI REGION
P: 6DEC2024 167967 18.0S 180.0W 4.0-5.4 AABAA Tonga Islands
No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.
OCEAN RIDGES
O: 5DEC2024 19:41:09 4.2S 104.3W MB=5.1 EMSC CENTRAL EAST PACIFIC RISE
P: 2DEC2024 167774 5.0S 105.0W 4.0-5.7 AAAAA No. East Pacific Rise
O: 5DEC2024 07:49:50 17.5N 60.1E MB=4.6 EMSC OWEN FRACTURE ZONE REGION
P: 24NOV2024 167526 15.0N 54.0E 3.5-4.9 CCCAA Gulf of Aden
O: 5DEC2024 16:51:21 56.0S 28.0W MB=5.1 EMSC SOUTH SANDWICH ISLANDS REGION
P: 4DEC2024 167995 56.0S 27.0W 4.0-6.2 AAAAA So. Sandwich Islands
ZEALANDIA AND AUSTRALIA REGION
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 6DEC2024 05:26:00 31.8N 131.5E MB=4.8 EMSC KYUSHU, JAPAN
P: 7DEC2024 167854 31.0N 131.0E 3.5-5.1 AAAAA Kyushu, Japan area
O: 5DEC2024 23:51:58 25.6N 142.4E MB=4.5 EMSC VOLCANO ISLANDS, JAPAN REGION
P: 6DEC2024 167822 27.0N 140.0E 4.0-5.5 ABBAA Bonin Islands
O: 5DEC2024 12:59:54 32.0N 137.9E MB=4.2 EMSC IZU ISLANDS, JAPAN REGION
O: 5DEC2024 14:36:02 32.3N 137.9E MB=4.8 EMSC IZU ISLANDS, JAPAN REGION
P: 7DEC2024 167858 35.0N 136.0E 3.5-4.9 ACBAA No. Honshu, Japan
NEIC reported an earthquake of M 4.8 in SE Honshu, Japan was felt with intensity up to IV in the area(s) of at SE Honshu, Japan at Saku, Nagano.
O: 6DEC2024 01:03:15 39.5N 142.6E MB=4.4 EMSC NEAR EAST COAST OF HONSHU,
P: 9DEC2024 167891 40.0N 144.0E 3.5-5.8 BAAAA Hokkaido, Japan
No earthquakes of M>=4 were located in Japan or the Kuril Islands today.
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 5DEC2024 17:53:23 32.0N 117.7W ML=3.5 EMSC OFFSHORE BAJA CALIFORNIA, MEXI
P: 7DEC2024 167869 32.9N 117.6W 2.5-4.7 AAAAA So. California
O: 5DEC2024 07:39:18 31.3N 115.8W ML=3.0 EMSC BAJA CALIFORNIA, MEXICO
O: 5DEC2024 13:50:07 32.4N 115.3W ML=2.1 EMSC BAJA CALIFORNIA, MEXICO
P: 3DEC2024 167868 32.5N 115.7W 2.5-4.4 AAAAA So. California
O: 5DEC2024 07:37:47 35.9N 117.7W ML=2.4 EMSC CENTRAL CALIFORNIA
P: 2DEC2024 167874 35.6N 118.4W 2.5-4.6 BAAAA So. California
O: 5DEC2024 12:42:12 36.6N 118.0W ML=3.0 EMSC CENTRAL CALIFORNIA
P: 6DEC2024 167838 36.8N 117.5W 2.5-4.6 AAAAA California/Nevada area
P: 7DEC2024 167840 37.8N 118.2W 2.5-4.8 AAAAA California/Nevada area
NEIC reported an earthquake of M 3.0 in Central California was felt with intensity up to IV in the area(s) of Central California at Lone Pine, Independence, Visalia.
O: 5DEC2024 18:47:36 38.8N 122.8W ML=4.2 EMSC NORTHERN CALIFORNIA
P: 7DEC2024 167846 38.8N 122.8W 2.5-4.4 AAAAA Central California
O: 5DEC2024 19:31:28 39.2N 119.0W ML=2.7 EMSC NEVADA
P: 5DEC2024 167842 38.3N 119.3W 2.5-4.4 AAAAA California/Nevada area
O: 5DEC2024 23:39:25 40.6N 123.1W MD=2.2 EMSC NORTHERN CALIFORNIA
P: 27NOV2024 167644 40.0N 123.0W 2.5-4.4 CAAAA Northern California
O: 05DEC2024 18:48:34 38.8N 122.8W MD=2.3 EMSC NORTHERN CALIFORNIA
O: 05DEC2024 18:50:36 38.9N 122.8W MD=2.2 EMSC NORTHERN CALIFORNIA
O: 5DEC2024 18:47:36 38.8N 122.8W ML=4.2 EMSC NORTHERN CALIFORNIA
P: 7DEC2024 167846 38.8N 122.8W 2.5-4.4 AAAAA Central California
O: 05DEC2024 21:34:48 40.2N 124.6W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:27:11 40.2N 124.4W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:13:15 40.2N 124.8W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:24:00 40.2N 124.8W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:53:58 40.2N 124.8W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 02:00:42 40.2N 124.4W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 03:47:39 40.2N 124.4W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:05:54 40.3N 124.4W ML=3.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:18:47 40.3N 125.0W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:21:17 40.3N 124.5W ML=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:31:23 40.3N 124.8W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:58:01 40.3N 124.7W MD=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:04:22 40.3N 124.9W ML=3.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:08:39 40.3N 125.8W MD=2.9 EMSC OFF COAST OF NORTHERN CALIFORNIA
O: 05DEC2024 20:16:09 40.3N 124.5W ML=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:21:09 40.3N 124.5W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:28:48 40.3N 124.5W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:32:32 40.3N 124.8W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:54:43 40.3N 124.5W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:56:55 40.3N 124.6W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:05:11 40.3N 124.4W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:11:48 40.3N 124.7W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:18:19 40.3N 124.2W MD=2.5 EMSC NORTHERN CALIFORNIA
O: 05DEC2024 21:31:51 40.3N 124.6W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:35:47 40.3N 124.5W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:47:11 40.3N 124.9W ML=4.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:58:38 40.3N 124.3W MD=2.2 EMSC NORTHERN CALIFORNIA
O: 05DEC2024 22:02:23 40.3N 124.5W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:04:18 40.3N 125.0W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:10:50 40.3N 124.4W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:14:54 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:22:55 40.3N 124.5W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:41:16 40.3N 125.1W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:48:39 40.3N 124.6W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:57:21 40.3N 124.6W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:01:30 40.3N 124.5W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:04:31 40.3N 124.8W MD=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:05:14 40.3N 124.5W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:12:35 40.3N 124.5W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:10:23 40.3N 124.8W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:19:50 40.3N 124.5W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:25:39 40.3N 124.8W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:44:03 40.3N 125.0W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 00:46:29 40.3N 124.5W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 01:00:43 40.3N 124.6W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 01:25:21 40.3N 124.6W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 01:32:58 40.3N 124.5W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 01:51:58 40.3N 124.6W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 02:18:44 40.3N 124.9W ML=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 02:27:11 40.3N 124.7W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 02:32:18 40.3N 124.5W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 02:39:54 40.3N 124.6W MD=2.8 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 02:55:22 40.3N 124.7W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 03:21:15 40.3N 124.6W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 03:22:13 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 04:08:53 40.3N 124.5W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 04:52:48 40.3N 125.0W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 05:05:51 40.3N 124.4W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 05:20:42 40.3N 124.5W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 05:44:22 40.3N 125.1W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 06:09:53 40.3N 124.4W MD=2.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 18:44:23 40.4N 125.0W Mw=7.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 18:44:23 40.4N 125.0W Mw=7.3 JTWC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 18:46:27 40.4N 125.0W ML=4.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:14:42 40.4N 125.0W MD=3.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:28:45 40.4N 125.2W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:36:38 40.4N 124.9W ML=3.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:38:07 40.4N 124.5W ML=3.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:46:47 40.4N 125.3W MD=3.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:12:07 40.4N 125.1W ML=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:39:22 40.4N 125.4W ML=3.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:07:23 40.4N 125.0W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:08:34 40.4N 125.0W ML=3.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:39:59 40.4N 125.2W MD=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:52:49 40.4N 125.4W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 21:57:40 40.4N 124.6W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:06:08 40.4N 125.2W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:20:58 40.4N 124.8W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:45:13 40.4N 125.0W ML=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:55:55 40.4N 125.1W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 22:59:14 40.4N 125.0W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:06:48 40.4N 124.9W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:16:18 40.4N 125.3W ML=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:17:33 40.4N 125.2W Mw=3.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:26:57 40.4N 125.0W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:33:23 40.4N 125.2W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 01:20:58 40.4N 124.7W MD=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 01:44:32 40.4N 125.0W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 01:47:53 40.4N 124.5W MD=2.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 02:17:58 40.4N 124.5W MD=2.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 03:13:28 40.4N 125.3W ML=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 03:14:34 40.4N 125.1W ML=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 03:32:10 40.4N 125.0W Mw=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 04:24:13 40.4N 125.2W Mw=3.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 05:01:51 40.4N 124.9W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 06:00:36 40.4N 125.0W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 06:11:16 40.4N 124.7W MD=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:02:46 40.5N 124.6W ML=3.3 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:10:05 40.5N 125.1W ML=4.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 19:48:18 40.5N 125.2W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:00:21 40.5N 124.5W ML=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:46:44 40.5N 125.1W ML=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 20:53:54 40.5N 125.2W ML=3.0 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:13:51 40.5N 124.7W ML=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:31:24 40.5N 125.0W MD=3.4 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 05DEC2024 23:44:48 40.5N 125.0W MD=3.2 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 05:13:50 40.5N 124.5W Mw=3.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 06DEC2024 06:56:05 40.5N 125.1W MD=2.6 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 5DEC2024 20:09:35 40.2N 124.9W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 3DEC2024 167906 40.3N 125.2W 2.5-4.6 AAAAA Off Coast of No. Calif
P: 7DEC2024 167906 40.7N 124.6W 2.5-4.7 AAAAA Off Coast of No. Calif
ALASKA
O: 5DEC2024 11:48:03 52.1N 170.9W MW=5.6 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 6DEC2024 167928 52.4N 169.4W 3.5-5.0 AAAAA Fox Islands, Aleutians
O: 6DEC2024 06:36:55 59.6N 152.5W ML=3.2 EMSC SOUTHERN ALASKA
P: 4DEC2024 167945 60.0N 153.5W 3.2-5.0 AAAAA Central Alaska
NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with intensity up to II in the area(s) of Southern Alaska at Ninilchik.
O: 5DEC2024 19:09:32 63.7N 147.7W ML=3.0 EMSC CENTRAL ALASKA
P: 6DEC2024 167949 62.7N 149.3W 3.2-5.2 AAAAA Central Alaska
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 6DEC2024 06:32:03 49.2N 129.0W MB=4.4 EMSC VANCOUVER ISLAND, CANADA REGIO
P: 6DEC2024 167916 47.9N 129.1W 2.8-5.1 ABAAA Vancouver Island area
ROCKY MOUNTAINS REGION
O: 6DEC2024 02:24:11 32.2N 101.9W ML=3.1 EMSC WESTERN TEXAS
O: 5DEC2024 18:54:44 32.3N 101.9W ML=2.2 EMSC WESTERN TEXAS
P: 4DEC2024 167866 31.6N 103.6W 2.0-4.3 AABAA SW U.S.A
NEIC reported an earthquake of M 3.1 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas at Stanton and Tarzan.
O: 5DEC2024 13:15:19 31.4N 103.7W ML=2.1 EMSC WESTERN TEXAS
O: 5DEC2024 23:09:12 32.2N 104.5W ML=2.8 EMSC NEW MEXICO
P: 7DEC2024 167866 32.6N 104.6W 2.0-4.3 AAAAA SW U.S.A
NEIC reported earthquakes of M 2.8 in Western Texas were felt with intensity up to IV in the area(s) of Western Texas in Whites City, New Mexico.
O: 5DEC2024 18:45:50 38.5N 112.9W ML=4.2 EMSC UTAH
P: 5DEC2024 167882 39.8N 112.7W 2.0-4.2 AAAAA Utah area
P: 24NOV2024 167617 38.7N 112.6W 2.0-4.1 CAAAA Utah area
O: 5DEC2024 09:11:20 44.5N 115.2W ML=2.3 EMSC SOUTHERN IDAHO
P: 7DEC2024 167897 44.4N 115.1W 2.0-3.9 AAAAA Montana/Idaho
EASTERN U.S./CANADA
No earthquakes of M>=1 were located in the Eastern U.S. or Canada today.
HAWAII
O: 5DEC2024 18:52:00 19.6N 155.0W MD=3.3 EMSC ISLAND OF HAWAII, HAWAII
P: 6DEC2024 167796 18.8N 155.2W 3.0-4.4 AAAAA Hawaii
December 6, 2024
A major earthquake of M 7.0-7.3 occurred on December 5, 2024 near local noon off the coast of Northern California.
The Joint Typhoon Warning Center (JTWC) gave this event M 7.3 and several other magnitudes were
given by various international agencies, but it appears to qualify as a "major" earthquake.
This event occurred near the end of a minor C-class solar flare. It also
occurred at an epicenter where the second strongest M-class flare of the day
was at maximum at exactly local solar midnight as seen in SWPC data:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4340 0638 0641 0645 C3.3 (December 5, 2024) 1.3E-03
4350 0656 0709 0733 M1.0 (December 5, 2024) 1.6E-02
4370 0812 0820 0824 M1.1 (December 5, 2024) 4.2E-03
Northern California M 7.0 18:44 UT (antipodal local solar midnight 08:20 UT)
4470 1917 1930 1935 C3.8 (December 5, 2024) 7.0E-04
East Pacific Rise M 5.1 19:41 UT
Northern California M 7.0 18:44 UT
It also occurred while a northeast clipper was hitting the northeastern U.S. Both of these are
possible triggers for such an event. The epicenter of this earthquake is about 104-105
degrees from a series of events including an M 5.7 in southern Iran yesterday
and may have been promoted by energy from that source.
A tsunami warning for the west coast of the U.S. was issued but tsunamis from
large earthquakes in this area are not usually powerful and it is likely
that any tsunami associated with today's event would be in the centimeters
height range. This warning was later withdrawn when no significant tsunami
waves were observed.
A series of moderate earthquake in the Geysers area of northern California
followed the M 7.0 off the California coast. They were likely triggered
by P- and/or S-waves from that earthquake. This series included events of M 2.5 and 4.3.
NEIC reported these were felt with intensity up to III in northern and Central
California at Felton, San Jose, Santa Rosa, Yuba City, Rohnert Park and Fremont.
Today's mainshock was reported by NEIC to have been felt with damage with intensity
VIII at Redcrest and VII in Ferndale and Rio Dell. Intensity VI was reported thoughout most
of Northern California including at Alderpint, Carlotta, Fortuna, Garberville, Hydesville, Loleta, Myers Flat, Scotia, Whitethorn and Six Rivers National Forest. Intensity V was felt as far as 150 km of the epicenter; IV up to 300 km as far as Oregon and III in Nevada and the remainder of California. Light shaking of II was reported in Arizona, Washington, Oregon, British Columbia, and within about 500 km of the epicenter.
Earthquakes in this area can occur in pairs and can help trigger far-field
seismicity, so readers are advised not to relax quite yet.
The last earthquake within about 200 km of today's epicenter off the coast of
Northern California with M>=7 occurred as an M 7.0-7.1 on June 15, 2005. Other
such event (all of M 7.0-7.1) in the past 35 years occurred on August 17, 1991, April 25, 1992,
and September 1, 1994. At the time of the last such earthquake off the coast
of northern California, this summary noted:
"Strong earthquakes occurred today in two areas of the U.S. and Canada. The
strongest of these was an M 7.0-7.5 which occurred late tonight off the coast
of Northern California. This was preceded by an earthquake of M6.6-6.8 in the
Rat/Andreanof Islands region of the central Aleutian Islands, Alaska. A
tsunami warning was issued by the USGS following the event off the coast
of Northern California. That earthquake was strongly felt along the coast
of Oregon and California and was reported slightly felt as far away as
Keller, Texas and Berthoud, Colorado. It was felt to the south as far as Los Angeles.
and as far to the north as Colville, Washington more than 1000 km away from
the epicenter. The quake was also felt in the Seattle area. Maximum felt
intensity was VI at Myrtle Point, Oregon. This is the first event located
in the region off the coast of California (38-42N 124-130W) since an earthquake
of M 7.1 on Sept. 1, 1994 (M 7.1) and April 25, 1992 (M 7.1). The largest
earthquake previously located in the region was an M 7.2 on Nov. 8, 1980
(NEIC data) If the current magnitude of M 7.4 is not revised downward, this
would be the strongest earthquake ever recorded in this region off the northern
coast of California (the largest previous had been M 7.3 on Jan. 31, 1922).
This summary had expected a strong earthquake in the region could occur
at this time. We had emphasized this in our lead article in this summary three
weeks ago on May 23, 2005 and to a lesser extent on Feb. 25, 2005 in this
summary. Readers may read these warning summaries in full by clicking on
more> below. The area was under very strong seismic watch conditions at
the time of the quake. This seismic watch arose from triggering effects
from the landfall of Tropical Storm Arlene, a strong geomagnetic storm two
days ago and the occurrence of a great earthquake in Chile yesterday (M 7.8-7.9)
in addition to a recent activation of the area." (June 15, 2005)
In the previous issues this summary had detailed the lull in major seismic
global activity preceding today's event (see summaries and updates for December 1-5 for
details). This earthquake at M 7.0 is a "major event"
earthquake" and occurs 102-103 days after the last earthquake of M 6.9 in Tonga
on August 26, 2024, not quite breaking the length of the previous quiet period
of 103-104 days in 2019.
When a slightly smaller event of M 6.9 hit the coast of Northern California
on March 10, 2014, this summary noted the strong quiet period preceding it as:
"A strong earthquake of M 6.9 hit off the coast of Northern California early
on March 10 (March 9 local time). NEIC reported this earthquake was widely
felt along the coast of northern California. Maximum intensity V was felt
at Blue Lake and Samoa with intensity IV at Eureka, Ferndale, MacKinleyville, North Bend, Whitethorn, Trinidad, Rio Dell, Loleta, Hydesville, Barberville, Fortuna, Ferndale, Bayside, Arcata, Littleriver, California. Intensity II-III was felt in Brisbane, Daly City, Billbrae, San Gregorio, San Francisco, Oakland, Albany, San Rafael, Bodega, Inverness, Mill Valley, Aptos, Boulder Creek, Santa Cruz, Scotts Valley, Santa Rosa, Albion, Compiche, Elk, Fort Bragg, Guerneville, Mendocino, Ukiah, Willits, Bridgeville, Burnt Ranch, Carlotta, Crescent City, Klamath, Korbel, Myers Flat, Salyer, Somes Bar, Zenia, Davis, Esparto, Lincoln,Dutch Flat, Sacramento, Chico, Grass Valley, Magalia, Nevada City, Paradise, Quincy, Chico, Redding, Big Bar, Dunsmuir, Gerber, Hayfork, Lewiston, Mount Shasta, Palo Cedro, Weaverville, Crescent City, Klamath, Point Arena and San Mateo. It was also felt in Oregon with intensity IV in North Bend and II-II in Klamath Falls, Selma, O'Brien, Grants Pass, Cave Junction, North Bend, Gold Beach, Brookings and Eugene.
A foreshock of M 3.3 occurred about 15 minutes before the mainshock but was
not reported felt in the area. A smaller foreshock occurred about noon today.
NEIC reported this earthquake of M 2.6 off the coast of Northern California was felt with intensity II-III in the area(s) of Rio Dell, California.
This is the strongest earthquake to hit off northern California since an M 7.2
on June 15, 2005 and an M 7.1 on September 1, 1994. A series of events in July and
August, 1991 and on April 25, 1992 registered M 6.9-7.1 in the area. It is also
the strongest earthquake in the United States outside Alaska since the Easter
Day earthquake in Baja California of April 4, 2010. The epicenter of that event,
however was not within the borders of the U.S. and the last event within the U.S.
territorial borders were the events of June 2005 and September 1994.
It is also the strongest earthquake in the world since an event of M 7.8 in
the Scotia Sea on November 17, 2013." (March 11, 2014)
Following the M 6.9 in 2014, this summary reported the following far-field
triggering relations in the following two months. It is likely that these
areas will be equally likely to see enhanced seismicity from the M 7.0 on
December 5, 2024:
Antipodal (~180 degrees)
Coast of Northern California to Southern Indian Ocean
Outer shadow zone edge (141-148 degrees)
Coast of Northern California to Comores Islands,
Node 3 (120 degrees)
Coast of Northern California to Balleny Is, Sumba, Bali, South Georgia, Java, Nicobar Islands, Sumatra,
Inner shadow zone edge (101-110 degrees)
Coast of Northern California to Celebes, Turkmenistan, Assam, India, China, Iran, Mid-Atlantic, New Zealand, Myanmar, Ceram, Halhahera, Molucca, Cyprus, Crete, Greece, Ceram, Christchurch, New Zealand, Molucca, Afghanistan, Caucasus, Irian Jaya, Mindanao,
Node 4 (90 degrees)
Coast of Northern California to Algeria, New Guinea, Romania, Kermadec Is. New Ireland, Algeria, Central Chile, Spain, Taiwan, Algeria, Morocco, China, Bismarck Sea, Serbia, New Guinea, Central Mid-Atlantic
Node 5 (72 degrees)
Coast of Northern California to England, Azores, Tokyo, Japan, Tonga, Samoa, North Sea, Southern Peru, Siberia
Node 6 (60 degrees)
Coast of Northern California to Southern Kuril Islands, Colombia, Ecuador, northern Peru
Node 7 (52 degrees)
Northern California to coast of Panama, Dominican Republic, Puerto Rico, Kamchatka, South of Panama
A regional foreshock occurred about an hour before the M 7.0 off Northern California.
This event of M 3.6 off the coast of Baja California was reported by NEIC to have been felt with intensity up to III in California at La Mesa, El Cajon and II in Chula Vista, Imperial Beach, Ramona, San Diego and Spring Valley, California.
A moderately large earthquake of M 5.6 also occurred in the Fox Islands, Aleutians, Alaska today. NEIC reported it was felt with intensity up to IV in Nikolski, Alaska.
The last earthquake in the Fox Islands, Alaska of M>=5.6 was an M 6.0 on May 19, 2024.
At the time this summary noted:
"The strongest earthquake in the world today was an M 6.0 in the Fox Islands. NEIC reported
it was felt with intensity up to V in Nikolski, Alaska. This is the first earthquake
in the U.S. or Canada of M>=6 in the year 2024 to date. The last such earthquake
of M>=6 occurred on December 21, 2023 with M 6.1 and prior to that as a M 6.4
on October 16, 2023. Today's earthquake is also the strongest within about
200 km of today's epicenter since an M 6.8 and 6.6 on January 11, 2022." (May 19, 2024)
NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with intensity up to II in the area(s) of Southern Alaska at Ninilchik.
NEIC reported an earthquake of M 4.7 in Northern Venezuela was felt with intensity up to IV in the area(s) of Northern Venezuela at in Port of Spain, Trinidad and Tobago.
NEIC reported an earthquake of M 3.1 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas at Stanton and Tarzan.
NEIC reported earthquakes of M 4.4 in Ecuador were felt with intensity up to II in the area(s) of Ecuador in Manta Manabi.
NEIC reported earthquakes of M 2.8 in Western Texas were felt with intensity up to IV in the area(s) of Western Texas in Whites City, New Mexico.
NEIC reported an earthquake of M 4.8 in SE Honshu, Japan was felt with intensity up to IV in the area(s) of at SE Honshu, Japan at Saku, Nagano.
NEIC reported an earthquake of M 3.0 in Central California was felt with intensity up to IV in the area(s) of Central California at Lone Pine, Independence, Visalia.
EMSC reported an earthquake of M 4.2 in Cyprus was felt with moderate intensity up to II-III in the area(s) of Cyprus at Kiti, Tersefanou, Larnaca, Aradippou, Livadia, Voroklini, Pyla, Avgorou, Paralimni, Dumlupinar among others.
No Tropical Cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4290 0008 0016 0022 C5.3 (December 5, 2024) 3.4E-03
4330 0623 0631 0638 C2.8 (December 5, 2024) 8.3E-04
Pakistan M 5.2 06:22 UT
4340 0638 0641 0645 C3.3 (December 5, 2024) 1.3E-03
4350 0656 0709 0733 M1.0 (December 5, 2024) 1.6E-02
4370 0812 0820 0824 M1.1 (December 5, 2024) 4.2E-03
Northern California M 7.0 18:44 UT (antipodal local solar midnight 08:20 UT)
4400 1032 1040 1046 M2.5 (December 5, 2024) 1.1E-02
Mindanao M 4.4 10:30 UT
Tarapaca M 4.5 10:41 UT
4420 1206 1212 1221 C2.7 (December 5, 2024) 2.2E-03
Buryatiya, Russia M 4.6 12:08 UT
Fiji M 4.4 12:26 UT
4430 1250 1256 1300 C2.6 (December 5, 2024) 1.4E-03
Izu Is. M 4.2 12:59 UT
4440 1334 1347 1403 C3.6 (December 5, 2024) 5.6E-03
Argentina M 5.2 13:39 UT
Iran M 4.2 13:42 UT; M 5.0 13:25 UT
4450 1455 1524 1536 C4.7 (December 5, 2024) 8.8E-03
4470 1917 1930 1935 C3.8 (December 5, 2024) 7.0E-04
East Pacific Rise M 5.1 19:41 UT
Northern California M 7.0 18:44 UT
4490 2037 2046 2053 C2.2 (December 5, 2024) 1.9E-03
Jalisco M 3.6 20:37 UT
Northern California M 3.4 20:39 UT
Cyprus M 4.2 20:53 UT
4500 2108 2115 2122 C6.2 (December 5, 2024) 3.6E-03
Northern California M 3.4 21:08 UT
4510 2144 2149 2153 C3.2 (December 5, 2024) 1.7E-03
Mongolia M 3.8 21:58 UT
4520 2211 2218 2222 C3.4 (December 5, 2024) 1.8E-03
Sulawesi M 4.2 22:17 UT
`
GEOMAGNETIC FIELD: unsettled December 6-8. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 5 3 5 10:00 3 101 175
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
EARTHQUAKE SUMMARY FOR NOVEMBER 30, 2024
MODERATELY STRONG QUAKES IN RYUKYU ISLANDS
The strongest earthquake in the world today was an M 5.7 in the Ryukyu Islands, Japan. NEIC reported it was felt with intensity III in Chatan Okinawa, Japan. It was accompanied by foreshocks of M 4.8 and an aftershock of M 5.2, among others which were also felt lightly in the Ryukyu Islands. It is likely that these earthquakes were triggered by solar flares 3200 and 3210 - the largest flares of the day - as they occurred near the peak of both flares. SWPC flare data for these events follows:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3200 0837 0851 0859 C4.3 (November 30, 2024) 5.3E-03
Ryukyu Is. M 5.7 08:46 UT
3210 0859 0906 0912 C9.3 (November 30, 2024) 5.9E-03
Ryukyu Is. M 5.2 09:07 UT
Today's earthquake of M 5.7 in the Ryukyu Islands is the strongest within about 200 km of this epicenter since an M 5.7 on October 16, 2023. At the time this summary noted:
"A moderate earthquake of M 5.7 in the Southwestern Ryukyu Islands also occurred today. It was followed by a number of moderate aftershocks including one of
M 4.7. This is the strongest activity in the Ryukyu Islands within about
200 km since an M 6.3 about 150 km north of these epicenters on September 18, 2023 and may be regional aftershocks of that event." (October 16, 2023)
Forecasts 167831 and 167558 had expected today's event was likely in late November or early December within this area.
O: 30NOV2024 08:46:16 25.3N 126.0E MW=5.7 EMSC RYUKYU ISLANDS, JAPAN
O: 30NOV2024 17:19:19 26.2N 125.7E mb=4.6 EMSC NORTHEAST OF TAIWAN
P: 3DEC2024 167831 25.0N 127.0E 4.0-5.4 BAAAA Ryukyu Islands
P: 24NOV2024 167558 25.0N 127.0E 4.0-5.4 CAAAA Ryukyu Islands
An M 5.4 was also located today in the region of western Mexico near the Revilla Gigedo Islands. NEIC reported light intensity was felt in Jalisco, Mexico at Puerto Vallarta and in Mexico at Tlalnepantla. This is the strongest earthquake near Revilla Gigedo Island, Mexico since an M 5.5 on September 5, 2021. At the time this summary noted:
"The last earthquake of M>=5.9 within about 200 km of today's epicenter in the Revilla Gigedo Islands, Mexico occurred as an M 6.3 on November 1, 2011. Forecasts 117968 and 117992 had expected today's event within about 50 km of the epicenter was likely around August 14-17. Earthquakes in this area can stress faults to the north, but as this was triggered by TS Henriette, this is much less likely to trigger additional seismicity in the Gulf of California." (August 14, 2019)
Forecasts 167792 and 167549 had expected today's event within about 100 km was likely at the end of November or early December.
O: 30NOV2024 15:08:51 19.4N 108.5W MW=5.4 EMSC REVILLA GIGEDO ISLANDS REGION
P: 2DEC2024 167792 19.0N 109.0W 3.5-5.4 AAAAA Coast of Jalisco, Mexico
P: 22NOV2024 167549 20.0N 109.0W 3.5-5.2 CAAAA Gulf of California
This epicenter is located at the antipode of Tropical Cyclone Bheki as it reached maximum wind strengths in the South Indian Ocean about a week ago and may may been enhanced by antipodal stresses associated with that storm. Initial data from NHC for this storm follows:
"TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-17 00:00 UT 16.0S 70.7E 135 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 135 kts. It is expected to track to the south and west over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days." (November 22, 2024)
and
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 90 kts. It is expected to track to the WSW over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days." (November 21, 2024)
The Mexican event may also have been promoted by SFE associated with solar flare (SWPC # 3270) as it occurred towards the end of that flare. Data from SWPC for this flare follow:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3270 1444 1453 1505 C2.1 (November 30, 2024) 1.0E-03
Tonga M 4.6 14:48 UT
Gulf of California M 4.2 15:02 UT
Banda M 4.4 15:06 UT
Tonga M 4.7 15:06 UT
Revilla Gigedo Islands, Mexico M 5.4 15:08 UT
The strongest earthquake in the U.S. or Canada today was an M 4.0-4.2 in Hawaii. NEIC reported it was widely felt with intensity III in Hawaii at Captain Cook, Hakalau, Honokaa, Honomu, and II in Hawaii National Park, Hawi, Hilo, Holualoa, Honaunau, Kailua Kona. NEIC reported an aftershock of M 3.1 in Hawaii was felt with intensity up to IV in the area(s) of Hawaii at Naalehu and II in Volcano. EMSC reported M 4.2 was felt as a quick jolt at Honokaa and Kailua Kona, Hawaii. Forecast 167527 had expected today's event in Hawaii was likely around November 28.
O: 30NOV2024 18:40:35 19.5N 155.4W ML=4.2 EMSC ISLAND OF HAWAII, HAWAII
P: 28NOV2024 167527 19.9N 156.1W 3.0-4.7 AAAAA Hawaii
The world is closing in on a modern global earthquake record. The last earthquake considered to be of major category (M>=6.9) in the NEIC catalog occurred on August 26, 2024 with M 6.9. This quiet length will reach 100 days on
December 3, 2024 without such an earthquake, a remarkable period of quiet seismicity for the world as a whole. The end of such periods often identify a shorter period of strong activity releasing the pent up stress accumulated during the quiet period. Following is a listing of the quietest periods since 1990. The first number in Table 1 below is the rank among quiet periods, the second the period in days of the beginning of the quiet; the third is the date of the start of the period and the fourth is the date of the next event in the world of M>=6.9. The listing covers quiet periods of two months or longer since 1990.
TABLE 1: NOTABLE EARTHQUAKE QUIET PERIODS (1990-2024)
RANK DAYS Q FIRST DAY LAST DAY
01 104.2 (8-2-2019 11-14-2019)
02 100.0 (8-25-2024 Not finished)
03 92.6 (5-4-2018 8-5-2018)
04 90.7 (11-15-2014 2-13-2015)
05 86.2 (4-2-2024 6-28-2024)
06 85.4 (3-25-2020 6-18-2020)
07 83.0 (10-30-2020 1-21-2021)
08 81.0 (8-20-1998 11-9-1998)
09 79.1 (11-25-2013 2-12-2014)
10 78.9 (7-13-1991 9-30-1991)
11 77.3 (3-28-2005 6-13-2005)
12 76.8 (12-29-2021 3-16-2022)
13 75.1 (11-14-2019 1-28-2020)
14 69.7 (3-17-2003 5-26-2003)
15 68.5 (5-21-2021 7-29-2021)
16 66.5 (3-1-2019 5-6-2019)
17 66.3 (12-27-1991 3-2-1992)
18 65.7 (8-12-1990 10-17-1990)
19 64.2 (11-17-2002 1-20-2003)
20 63.1 (4-26-2002 6-28-2002)
21 63.1 (7-19-1997 9-20-1997)
22 62.9 (2-24-2001 4-28-2001)
23 62.5 (5-28-2016 7-29-2016)
24 62.4 (3-20-2021 5-21-2021)
25 62.1 (6-15-1999 8-17-1999)
26 61.9 (5-16-2006 7-17-2006)
27 61.5 (5-26-2022 7-27-2022)
28 61.1 (1-22-2024 3-23-2024)
It is notable that many of the periods of strongest quiescence occur in the northern summer into late fall. These included the current period (rank 2) and the nearly identical Period of August to November, 2019 (rank 1). Other similar by shorter periods occurred in 1991 (#10), 1990 (#18), 1998 (#8). Only one such quiet period begins in January or February and there are none of these which begin in September. The list of beginning of quiet period follows:
TABLE 2: NUMBER OF NOTABLE EARTHQUAKE QUIET PERIODS (1990-2024)
Beginning of quiet Periods
Month Number of periods
DEC 2
JAN 1
FEB 1
MAR 5
APR 2
MAY 5
JUN 1
JUL 2
AUG 3
SEP 0
OCT 1
NOV 4
End of quiet Periods
Month Number of periods
DEC 0
JAN 3
FEB 2
MAR 3
APR 1
MAY 3
JUN 4
JUL 4
AUG 2
SEP 2
OCT 1
NOV 2
Of all quiet periods of any length the most active (least number of days) occurs in February-March with 192 in those four months, and the most quiet from August through November with 223 in those four months.
This seasonal pattern of general global seismicity suggests a seasonal trigger. One such could be weather patterns during which major storms over oceans in the northern hemisphere occur in the months when there is quiet seismicity at these magnitude. A hypothesis would be consistent with these data is that major storms can trigger smaller earthquakes leaving the larger earthquake - as in this study - to occur later leading to the pattern observed. Such an earthquake would most likely occur in conjunction with a solar flare and/or near local solar noon or local solar midnight when tidal stresses maximize and perhaps near the date of the new or full moon and would probably be preceded by foreshocks warning of the time of the quake. It would likely be followed by a series of strong global events in a short period (a couple of weeks) using up pent up seismic energy around the world. Major weather events such as clippers or nor'easters in the U.S. or ocean typhoons or hurricanes could also help trigger such an earthquake.
HOUSECLEANING
As you know, this summary has fallen way behind in the formal daily documents.
To some extent this has been alleviated by the addition of an "COMING ATTRACTIONS" section. But this does not include actual data which is often delayed as to the position and magnitude of earthquakes. These then need to be converted into a formal daily report which, by the time the reader gets it is more historical and not relevant to current conditions. With this report it is hoped the summary will catch up to recent events. Formal reports of past days will continue as time permits, but the focus will be on recent events and possibilities.
In addition, this summary will also begin to include some statistical discussion and analyses of data presented in this summary for the past 25 years. It is hoped this will allow the reader more sophisticated insight into earthquakes and earthquake occurrence.
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: 1DEC2024 00:57:49 23.6N 120.7E ML=4.2 EMSC TAIWAN
P: 2DEC2024 167835 23.0N 122.0E 4.0-5.4 AAAAA Taiwan
O: 30NOV2024 09:32:41 40.2N 77.5E MB=4.4 EMSC SOUTHERN XINJIANG, CHINA
P: 27NOV2024 167630 41.0N 78.0E 4.0-5.6 BAAAA Kirgizstan/Xinjiang
INDONESIA AND PHILIPPINES
O: 30NOV2024 17:47:08 0.3N 122.2E MB=4.5 EMSC MINAHASA, SULAWESI, INDONESIA
P: 5DEC2024 167752 1.0N 122.0E 4.0-5.4 ABAAA Celebes Sea
O: 30NOV2024 21:11:28 2.9S 128.9E ML=4.3 EMSC CERAM SEA, INDONESIA
P: 4DEC2024 167768 3.0S 129.0E 4.0-5.6 BAAAA Ceram area
O: 30NOV2024 17:58:40 2.9S 136.6E MB=4.6 EMSC NEAR N COAST OF PAPUA, INDONES
P: 28NOV2024 167513 2.0S 135.0E 4.0-5.4 AABAA West Irian, PNG
O: 30NOV2024 14:10:12 5.8S 147.5E MB=4.8 EMSC EASTERN NEW GUINEA REG., P.N.G
P: 30NOV2024 167501 6.0S 149.0E 4.0-5.8 AABAA New Ireland
O: 30NOV2024 16:10:47 6.2N 123.4E MB=4.6 EMSC MORO GULF, MINDANAO, PHILIPPIN
P: 5DEC2024 167761 4.0N 123.0E 4.0-5.4 BCAAA Mindanao, Philippines
O: 30NOV2024 15:06:42 6.6S 127.7E ML=4.4 EMSC BANDA SEA
P: 5DEC2024 167765 6.0S 128.0E 4.0-5.4 BAAAA Banda Sea
P: 30NOV2024 167494 5.0S 126.0E 4.0-5.4 ABBAA Ceram area
O: 30NOV2024 08:44:39 7.7N 126.6E ML=4.0 EMSC MINDANAO, PHILIPPINES
P: 20NOV2024 167481 8.0N 125.0E 4.0-5.4 CABAA Central Philippines
O: 30NOV2024 21:36:05 13.0N 144.0E MB=4.7 EMSC GUAM REGION
P: 2DEC2024 167816 13.0N 144.0E 4.0-5.6 AAAAA So. Marianas/Guam
P: 25NOV2024 167542 13.0N 145.0E 4.0-5.6 BAAAA So. Marianas/Guam
NEIC reported this earthquake of M 4.7 in Guam was felt with intensity up to IV in the area(s) of Guam in Mangilao, and II in Yona, Yigo.
O: 30NOV2024 10:33:39 17.5N 145.8E MB=5.1 EMSC ALAMAGAN REG, N. MARIANA ISLAN
P: 2DEC2024 167809 16.0N 145.0E 4.0-5.5 ABAAA No. Marianas
CENTRAL AND SOUTH AMERICA
O: 30NOV2024 21:29:30 10.1N 86.5W ML=4.0 EMSC OFF COAST OF COSTA RICA
P: 26NOV2024 167535 10.0N 86.0W 3.5-5.3 BAAAA Nicaragua
O: 30NOV2024 10:53:22 13.8N 91.9W ML=4.4 EMSC OFFSHORE GUATEMALA
P: 27NOV2024 167525 14.0N 91.0W 3.5-5.1 BAAAA Guatemala
O: 30NOV2024 19:56:08 16.2N 97.5W ML=4.0 EMSC OAXACA, MEXICO
P: 5DEC2024 167811 15.0N 97.0W 3.5-5.1 ABAAA Oaxaca, Mexico
P: 25NOV2024 167538 17.0N 98.0W 3.5-5.4 BAAAA Oaxaca, Mexico
O: 30NOV2024 20:08:42 15.3N 94.6W ML=4.0 EMSC OFFSHORE OAXACA, MEXICO
O: 30NOV2024 20:18:05 17.7N 95.7W ML=4.2 EMSC VERACRUZ, MEXICO
O: 30NOV2024 23:02:34 17.4N 94.6W ML=4.0 EMSC VERACRUZ, MEXICO
P: 29NOV2024 167519 16.0N 95.0W 3.5-5.5 ABAAA Chiapas, Mexico
O: 30NOV2024 21:12:52 17.8N 101.5W ML=4.0 EMSC GUERRERO, MEXICO
P: 28NOV2024 167532 17.0N 101.0W 3.5-5.1 AAAAA Michoacan, Mexico
O: 30NOV2024 07:14:31 18.1N 101.8W ML=4.0 EMSC GUERRERO, MEXICO
O: 1DEC2024 01:06:36 18.3N 100.6W ML=4.0 EMSC GUERRERO, MEXICO
P: 2DEC2024 167812 17.0N 100.0W 3.5-5.3 AAAAA Oaxaca, Mexico
P: 28NOV2024 167539 18.0N 100.0W 3.5-5.6 BAAAA Oaxaca, Mexico
O: 30NOV2024 18:34:57 18.3S 69.7W MB=4.6 GUC TARAPACA, CHILE
P: 27NOV2024 167712 18.0S 69.0W 4.0-5.6 BAAAA So. Peru/Bolivia
GUC reported this earthquake was felt with intensity IV in Arica and Parinacota at Arica and San Miguel de Azapa.
O: 30NOV2024 09:50:14 18.6N 66.7W MD=3.0 EMSC PUERTO RICO REGION
P: 30NOV2024 167540 18.0N 67.0W 3.4-5.1 AAAAA Puerto Rico
O: 01DEC2024 00:12:57 19.1N 64.8W MD=3.4 EMSC VIRGIN ISLANDS REGION
O: 1DEC2024 01:09:17 19.2N 64.7W MD=4.0 EMSC VIRGIN ISLANDS REGION
P: 2DEC2024 167819 20.0N 63.0W 3.0-4.9 AABAA Bahamas/No. Caribbean
O: 30NOV2024 15:08:51 19.4N 108.5W MW=5.4 EMSC REVILLA GIGEDO ISLANDS REGION
P: 2DEC2024 167792 19.0N 109.0W 3.5-5.4 AAAAA Coast of Jalisco, Mexico
P: 22NOV2024 167549 20.0N 109.0W 3.5-5.2 CAAAA Gulf of California
O: 30NOV2024 11:29:51 22.4S 67.6W ML=4.0 EMSC POTOSI, BOLIVIA
P: 3DEC2024 167974 23.0S 69.0W 4.0-5.6 BABAA Coast No. Chile
P: 27NOV2024 167721 21.0S 69.0W 4.0-5.4 BBAAA Coast No. Chile
O: 30NOV2024 15:02:08 25.1N 109.7W ML=4.2 EMSC GULF OF CALIFORNIA
P: 26NOV2024 167549 24.0N 109.0W 3.5-5.2 BBAAA Gulf of California
O: 1DEC2024 04:33:30 28.6S 68.3W ML=4.0 EMSC LA RIOJA, ARGENTINA
P: 29NOV2024 167720 29.0S 68.0W 4.0-5.9 AAAAA Argentina
AFRICA AND EUROPE
No significant (M>=5) or unusual earthquakes were reported in Europe today.
SOUTHWEST PACIFIC
O: 30NOV2024 15:06:54 18.2S 172.5W MB=4.7 EMSC TONGA REGION
P: 8DEC2024 167967 17.0S 175.0W 4.0-5.7 CBCAA Tonga Islands
O: 30NOV2024 14:48:35 20.0S 175.8W MB=4.6 EMSC TONGA
P: 25NOV2024 167728 20.0S 176.0W 4.0-5.6 BAAAA Tonga Islands
O: 30NOV2024 13:15:39 24.1S 179.8E MW=5.1 EMSC SOUTH OF FIJI ISLANDS
O: 30NOV2024 13:31:16 24.2S 179.8W MB=4.4 EMSC SOUTH OF FIJI ISLANDS
P: 3DEC2024 167981 24.0S 179.0E 4.0-5.6 AAAAA Tonga/Fiji
OCEAN RIDGES
O: 30NOV2024 22:12:26 22.6S 12.8W MB=4.8 EMSC SOUTHERN MID-ATLANTIC RIDGE
P: 3DEC2024 167979 20.0S 12.0W 4.0-6.0 BCAAA So. Mid-Atlantic Ridge
O: 1DEC2024 06:12:22 35.6S 78.4E MB=5.0 EMSC MID-INDIAN RIDGE
P: 7DEC2024 167987 37.0S 79.0E 4.0-5.6 CBAAA So. Indian Ocean
No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.
ZEALANDIA AND AUSTRALIA REGION
O: 1DEC2024 00:01:57 28.8S 176.4W MB=4.9 EMSC KERMADEC ISLANDS REGION
P: 27NOV2024 167723 29.0S 176.0W 4.0-5.4 BAAAA No. Kermadec Islands
O: 30NOV2024 07:51:40 32.9S 178.2W MB=4.6 EMSC SOUTH OF KERMADEC ISLANDS
P: 28NOV2024 167739 31.0S 177.0W 4.0-5.4 ABAAA So. Kermadec Islands
JAPAN AND KURIL ISLANDS
O: 30NOV2024 08:34:09 23.9N 123.4E MB=4.8 EMSC SOUTHWESTERN RYUKYU ISL., JAPA
O: 30NOV2024 09:07:01 24.0N 123.4E Mw=5.2 EMSC SOUTHWESTERN RYUKYU ISL., JAPAN
P: 2DEC2024 167835 23.0N 122.0E 4.0-5.4 AAAAA Taiwan
P: 28NOV2024 167561 22.0N 122.0E 4.0-5.4 ABAAA Taiwan
O: 30NOV2024 08:46:16 25.3N 126.0E MW=5.7 EMSC RYUKYU ISLANDS, JAPAN
O: 30NOV2024 17:19:19 26.2N 125.7E mb=4.6 EMSC NORTHEAST OF TAIWAN
P: 3DEC2024 167831 25.0N 127.0E 4.0-5.4 BAAAA Ryukyu Islands
P: 24NOV2024 167558 25.0N 127.0E 4.0-5.4 CAAAA Ryukyu Islands
O: 1DEC2024 02:21:30 37.0N 136.4E ML=4.2 EMSC NEAR WEST COAST OF HONSHU,
O: 30NOV2024 08:40:30 37.0N 136.4E ML=3.9 EMSC NEAR WEST COAST OF HONSHU, JAPAN
O: 30NOV2024 09:06:30 37.0N 136.4E ML=4.3 EMSC NEAR WEST COAST OF HONSHU, JAPAN
P: 3DEC2024 167858 37.0N 137.0E 3.5-5.0 BAAAA No. Honshu, Japan
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 30NOV2024 19:35:21 30.8N 114.2W ML=3.6 EMSC GULF OF CALIFORNIA
P: 3DEC2024 167865 30.2N 114.2W 2.0-3.9 BAAAA SW U.S.A
O: 30NOV2024 07:06:12 31.8N 116.2W ML=3.2 EMSC BAJA CALIFORNIA, MEXICO
P: 3DEC2024 167868 32.5N 115.7W 2.5-4.4 BAAAA So. California
O: 1DEC2024 01:50:48 34.5N 119.7W ML=2.0 EMSC SOUTHERN CALIFORNIA
P: 27NOV2024 167604 34.7N 119.0W 2.5-4.8 BAAAA So. California
P: 29NOV2024 167604 34.9N 119.0W 2.5-4.6 AAAAA So. California
O: 1DEC2024 02:53:27 37.8N 122.0W MD=2.1 EMSC SAN FRANCISCO BAY AREA, CALIF.
P: 3DEC2024 167845 37.7N 121.9W 2.5-4.7 AAAAA Central California
P: 29NOV2024 167574 37.7N 121.9W 2.5-4.8 AAAAA Central California
O: 30NOV2024 07:46:59 38.8N 122.8W MD=2.2 EMSC NORTHERN CALIFORNIA
O: 30NOV2024 07:50:12 38.8N 122.8W MD=2.2 EMSC NORTHERN CALIFORNIA
P: 28NOV2024 167576 38.9N 122.8W 2.5-4.4 AAAAA Central California
O: 1DEC2024 03:56:11 39.4N 122.9W MD=2.1 EMSC NORTHERN CALIFORNIA
P: 5DEC2024 167846 39.3N 123.2W 2.5-4.4 BAAAA Central California
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: 30NOV2024 22:29:56 31.7N 104.2W ML=2.2 EMSC WESTERN TEXAS
P: 4DEC2024 167866 31.6N 103.6W 2.0-4.3 BAAAA SW U.S.A
EASTERN U.S./CANADA
O: 1DEC2024 03:30:51 36.6N 89.6W ML=2.7 EMSC SOUTHEASTERN MISSOURI
P: 25NOV2024 167587 35.0N 89.0W 2.0-4.1 CBAAA New Madrid area
NEIC reported this earthquake of M 2.7 in Missouri was felt with intensity up to III in the area(s) of Missouri at Matthews, New Madrid, iwth II at Catron and Lilourn, Missouri, Henderson, Tennessee, Utica, Kentucky and Browsburg, Indiana.
HAWAII
No earthquakes of M>=3 were located in Hawaii.
O: 30NOV2024 18:40:35 19.5N 155.4W ML=4.2 EMSC ISLAND OF HAWAII, HAWAII
P: 28NOV2024 167527 19.9N 156.1W 3.0-4.7 AAAAA Hawaii
December 5, 2024
The strongest earthquake in the world today was an M 5.6 in Khuzestan, Iran. NEIC reported it was felt with intensity V at Masjed Soleyman and Khurramabad, Lorestan withi IV felt in Ahwaz, Bandar-e Mah Shahr, Desful, Shushter, Khuzestan. It was also felt with intensity III in Kuwait at Salmiya, Abu Hulayfah, al-Manqaf, and Subhan Mubarak.
NEIC reported an aftershock of M 5.0 in Iran was felt with intensity up to II in the area(s) of Iran at Ahwaz, Khuzestan.
The mainshock was followed by aftershocks of M 4.9 and 5.0 - both of which were
felt in the same epicentral area. The last earthquake of M>=5.6 within about
250 km of today's epicenter was an M 5.7 on July 8, 2019. At the time this
summary noted:
"The second largest earthquake of the day was an M 5.7 in Western Iran. NEIC reported maximum intensity VII in Iran at Khuzestan and lesser shaking within abotu 200 km of the epicenter,
It was accompanied by several moderate aftershocks. The last earthquake within about
250 km of this epicenter with M>=5.7 was an M 6.2 and aftershocks on August 18, 2014." (July 8, 2019)
The strongest earthquakes in the U.S. or Canada today were an M 4.4 and M 4.2 off the coast of northern California. NEIC reported they may have been felt lightly in Eureka and Arcata, and at Orick and Antelope with intensity II-III in California.
The M 4.4 is the strongest event within about 100 km of this epicenter since an M 4.4 on
October 24. The only other event of M>=4.4 in this area in the past year was
and M 4.9 on February 2, 2024. At the time this summary noted:
"An earthquake of M 4.9 also occurred today off the coast of Northern California. NEIC reported it was felt with intensity III in Northern California at Petrolia.
NEIC reported an aftershock of M 3.4 off the coast of Northern California was felt with intensity up to III in the area(s) of Northern California in Petrolia.
NEIC reported this earthquake of M 3.4 off the coast of Northern California was felt with intensity up to III in the area(s) of Northern California in Petrolia.
EMSC reported moderate shaking in Fortuna, California. A foreshock of M 2.7-3.3 was also felt lightly in Petrolia, California.
The last earthquake off the coast of Northern California with M>=4.9 occurred
on May 21, 2023 and today's event is probably an aftershock of that mainshock.
At that time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 5.6 off the coast of Northern California. NEIC reported it was felt with maximum intensity VI in California at Petrolia and II-III in Ferndale, Loleta, Rio Del, Fortuna, Samoa, Hydesville, Eureka, Scotia, and as far as the coast of Oregon and Central California.
This is near the antipode of the M 6.8 in the Prince Edward Islands which
occurred several hours earlier in the day. Triggering associated with that
event possible. This event is near the fourth node (90 degrees) from the major
...
Earthquakes of equal or larger magnitude in this area of California have most
recently occurred as an M 6.2 on December 20, 2021, an M 5.8 on March 9, 2020 and an M 5.8 on January 25, 2018." (May 21, 2023, February 2, 2024)
These events occurred at the start of Solar Flare 4140 - of class C3.5. and may
have been promoted by SFE from that event.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4140 1137 1145 1151 C3.5 (December 4, 2024) 2.5E-03
Coast of No. California M 4.3 11:37 UT
South Sandwich Is. M 4.9 11:46 UT
An unusual earthquake of M 4.4 occurred near Buenos Aires, Argentina on December 3, 2024 under the Atlantic Ocean. It was
not reported felt in this area. The only earthquake of M>=4 within about 500 km of this
epicenter in the at least the past 35 years was an M 4.5 on April 9, 2023 about 300 km south of
today's epicenter. This activity is near the South Atlantic geomagnetic anomaly
and could indicate a geomagnetic origin for this event.
NEIC reported an earthquake of M 5.2 in Pakistan was felt with intensity up to IV in the area(s) of Pakistan at Jhelum and Kharian, Punjab and in Himachal Pradesh, India at Bakloh. Intensity III was felt in Punjab at Kahna, Lahore with lesser shaking in Jalapur, Shekhupura and Islamabad.
EMSC added it was felt with moderate intensity in New Amritsar, India and in Pakistan at Lahore, and Daulat Nagar.
NEIC reported an earthquake of M 2.6 in the Geysers, California was felt with intensity up to III in the area(s) of the Geysers, California in Napa and Middletown.
NEIC reported an earthquake of M 3.8 in Nevada was felt with intensity up to IV in the area(s) of Nevada at Silver Springs, Yerington, Carson City and II in Dayton, Fallon, Gardnerville, Reno.
NEIC reported an earthquake of M 3.3 in Northern California was felt with intensity up to III in the area(s) of Northern California at Meridian, Sutter, Willows and II in Williams.
NEIC reported an earthquake of M 2.8 in Central California was felt with intensity up to III in the area(s) of Central California at at Mariposa.
NEIC reported an earthquake of M 4.8 in Eastern Honshu was felt with intensity up to IV in the area(s) of Eastern Honshu at Chiba and Kanagawa Prefectures and II in Saitama and Tokyo.
This earthquake occurred near the peak of solar flare 4120 and
may have been promoted by SFE from that flare of M2.3 class.
NEIC reported an earthquake of M 4.6 in Cyprus was felt with intensity up to IV in the area(s) of Cyprus at Pafos and in Turkey in Antalya at Alanya, Antalya and Serik. Intensity III was felt throughout Cyprus.
EMSC reported moderate shaking in Turkey at Bakilar, Beyobasi, Korubasi, Mahmutlar, Kestel, Guller Pinari, Saray, Tosmur, Oba among others and throughout Cyprus.
EMSC reported an earthquake of M 4.3 in Russia-Mongolia border was felt with moderate intensity up to II-III in the area(s) of Russia-Mongolia border.
EMSC reported an earthquake of M 4.2 in Colombia was felt with moderate intensity up to II-III in the area(s) of Colombia at San Gil and Bogota.
No Tropical Cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4080 0314 0330 0346 C5.6 (December 4, 2024) 8.2E-03
4090 0448 0455 0502 C3.9 (December 4, 2024) 2.7E-03
Oaxaca M 4.2 05:03 UT
4100 0852 0856 0904 C3.3 (December 4, 2024) 2.1E-03
Cyprus M 4.7 09:09 UT
4120 0952 1000 1008 M2.3 (December 4, 2024) 1.4E-03
Eastern Honshu M 4.8 10:11 UT
4140 1137 1145 1151 C3.5 (December 4, 2024) 2.5E-03
Coast of No. California M 4.3 11:37 UT
South Sandwich Is. M 4.9 11:46 UT
4160 1447 1453 1514 C4.4 (December 4, 2024) 5.4E-03
4170 1528 1534 1543 C3.0 (December 4, 2024) 2.5E-03
Veracruz M 3.8 15:34 UT
4200 1809 1814 1820 C2.5 (December 4, 2024) 1.5E-03
4210 1833 1837 1841 C2.2 (December 4, 2024) 1.0E-03
Nevada M 3.8 18:46 UT
4230 2031 2046 2057 M1.3 (December 4, 2024) 1.6E-02
4240 2057 2105 2112 M1.4 (December 4, 2024) 1.2E-02
GEOMAGNETIC FIELD: quiet December 5 unsettled December 6-7. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 7 8 5 10:00 4 105 175
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
December 4, 2024
NEIC reported an earthquake of M 5.0 in Peninsular India was felt with intensity up to V in the area(s) of Peninsular India at Andhra Pradesh in Peddapalli, Yellandu; IV in Khammam, Kittagudem, Manuguru, Sirpur, Warangal, Gadchiroli, Gondiya, and III within about 300 km of the epicenter.
EMSC reported strong shaking in India at Ghanpur Mulug, Bhadrachalam, Khamapuram, Alwal, Ameerpet, Hyderabad, Tolichowki, Warangal, Hitech City, Kukatpally, Kothaguda, Serilingampalli.
This is a highly unusual earthquake. The last event within about 300 km of
this epicenter in India with M>=5 was an M 5.0 on October 29, 1993 of M 5.0
and a similar M 6.2 and 5.2 a month earlier on September 29, 1993 and are the
only such events in the past 35 years of M>=5 in the area. At the time of the M 6.2
in September 1993 this summary noted:
" 29 22:25:48.6 18.066 76.451 7 G 6.3 6.2 1.0 625 SOUTHERN INDIA. Mw 6.2
Nine thousand seven hundred forty-eight people killed, about 30,000 injured and extreme devastation in the Latur-Osmanabad area. Nearly all buildings were destroyed in the village of Khillari. Felt in large parts of central and southern India, including Bangalore, Bombay, Hyderabad and Madras." (September 29, 1993)
Today's event was probably promoted by stresses associated with Tropical Cyclone
Fengal which made landfall south of this in Peninsular India on December 2, 2024
and was dissipating over this epicenter at the time of this earthquake. Data
as noted in this summary on December 1 and 2, 2024 showed the expectations
of this storm as:
"TROPICAL CYCLONE FENGAL (04B)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC FENGAL 2024-12-02 00:00 UT 12.1N 79.9E 045 kts north of Sri Lanka
Tropical Cyclone Fengal (04B) continued today in the area of the north Indian Ocean near Sri Lanka with winds up to 45 kts. It is expected to track to the north over the next several days making landfall in southern India and to dissipate Around December 2. Some enhanced seismicity in the areas of northern India and Tajikistan is possible as this storm makes landfall." (December 2, 2024)
The strongest earthquake in the world today was an M 5.7 in Luzon. Philippines. NEIC reported maximum intensity V in Ilocos, Philippines at Laoag, Vintar and IV in Bangui, Tamorong, Vigan and in Calveria Cagayan Valley and Nangalisan, Cordillera.
PHIVOLCS reported intensity V in City of Laoag, Pagudpud, Dumaineg, Burgos, Pasuquin, Bacarra, Adams, Sarrat, Bangui, Paoay, Badoc, Vintar, Carasi, Solsona, Dingras and San Nicolas, Ilocos Norte and IV in City of Batac, Currimao, Nueva Era, Banna and Pinili, Ilocos Norte, throughout Ilocos Sur, the Cirty of Bauuio, Ab ra, Benguet, Mountain Province, Cagayan, Apayao; II in Benguet, Ilocos Sur, Abra, Cagayan, Kalinga, Isabela, Ifugao, La Union, Mountain Province and Nueva Vizcaya.
A strong eruption of the Taal Volcano in the Philippines began yesterday and
continued today with magma and ash being released. Taal is located at 14.0N 121E near Manila, Philippines.
When M 5.7 occurred near Taal Volcano on November 17, 2024 this summary noted:
"The event in the Luzon area of the Philippines occurred following a series
of major Typhoons hit the region in the past 10 days. This included the latest -
a Super Typhoon (Man-Yi) which did extensive damage to the region about a week
ago. This summary had anticipated this typhoon was likely to trigger a moderate
to strong earthquake in the area as reported at the time:
"TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-17 00:00 UT 15.8N 121.9E 160 kts Central Philippines
Typhoon Man-yi (TD 25W) continued today in the area of Luzon, Philippines with winds up to 160 kts where it made landfall with loss of life, torrential rains and winds and flooding. It is likely to track to the west dissipating by November 21. Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17." (November 17, 2024)
O: 27NOV2024 21:58:45 15.4N 120.8E MS=5.7 NEIC Luzon, Philippines
This moderately strong earthquake Luzon, Philippines occurred at the end of
a migration of moderate earthquakes from Mindanao to Leyte northward to Luzon
throughout the day. One interesting aspect of these four earthquakes in
the Philippines is that each occurred near the peak of a moderate solar flare." (November 17, 2024)
An unusual M 3.5 occurred today in northern Hawaii in the Oahu region. NEIC rported it was felt with maximum intensity IV in Hawaii at Kaunakakai; III in Captain Cook, Hanapepe, Kailua, Kamuela, Kaneohe, Kualapuu, Lahaina, Maunaloa, Pahoa, Waianae, Waimanalo, Honolulu, Aiea, and II in Kapolei, Pearl City, Mililani, Kuta, Fort Shafter.
EMSC reported a loud explosion-like noise and shaking at Maunaloa, Honolulu and Waimanalo, Power blinked in Kailua with a low vibration. An earlier event in southern Hawaii of M 3.0 was reported felt with intensity II in Keaau, Kihei and Volcano, Hawaii.
NEIC reported an earthquake of M 3.8 in Western Texas was felt with intensity up to II in the area(s) of Western Texas at Del City and in New Mexico at Roswell and Carlsbad.
A moderate earthquake of M 4.7 also occurred in Puerto Rico today. NEIC reported it was felt with maximum intensity II in Carolina, PR.
An earthquake of M 3.5 also occurred today in northwestern Australia. This
epicenter is near the antipode of the M 4.7 in Puerto Rico. EMSC reported this
earthquake was felt with a loud boom and brief rumble at Port Hedland, Australia.
NEIC reported an earthquake of M 2.7 in Southern California was felt with intensity up to IV in the area(s) of Southern California at Palm Springs, II in Borrego Springs, San Diego, Palm Desert, Cathedral City, La Quinta, Thermal.
NEIC reported an earthquake of M 2.7 in San Francisco Bay, California was felt with intensity up to IV in the area(s) of San Francisco Bay, California at Vallejo; III in Moraja, Walnut Creek, II in San Francisco, Concord, Pleasant Hill, Lafayette, Martinez, Orinda, Union City, Walnut Creed, Santa Cruz, Alamo and El Cerrito.
EMSC reported an earthquake of M 4.0 in Panama was felt with moderate intensity up to II-III in the area(s) of Panama in Jaramillo and Boquete.
No Tropical Cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3920 0256 0300 0304 C5.4 (December 3, 2024) 1.8E-03
3970 0534 0544 0549 C6.1 (December 3, 2024) 2.9E-03
Flores M 4.4 05:49 UT
3980 0952 0958 1004 C3.4 (December 3, 2024) 1.9E-03
4000 1317 1326 1342 C2.0 (December 3, 2024) 2.8E-03
4020 1403 1412 1418 C2.4 (December 3, 2024) 1.1E-03
4030 1815 1824 1832 C2.9 (December 3, 2024) 2.5E-03
Mindanao M 4.9 18:27 UT
Sumatra M 4.3 18:28 UT
Luzon M 5.7 18:54 UT
4040 2236 2247 2256 C5.4 (December 3, 2024) 4.4E-03
Honshu M 4.7 22:31 UT
GEOMAGNETIC FIELD: quiet December 4-6. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 13 21 10 10:00 5 126 185
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
December 3, 2024
Global seismicity remained quiet today with no significant earthquakes recorded.
The strongest earthquakes of the day continued as yesterday to occur on the
Indian Ocean Ridges with M 5.0 and M 5.1. This later event occurred within
about an hour of the new moon and was probably promoted by tidal stresses
associated with this new moon. An M 5.0 in the region of Guam also occurred
today near local solar noon, and may also have been promoted by tidals
stresses associated with the new moon of December 1.
In the meantime this summary will provide some additional statistical earthquake analyses
on significant global seismicity.
In the previous issue of this updated summary a statistical analysis of the
timing of large earthquakes over the past 35 years was presented. For comparison, the number of earthquakes in each magnitude range for the past
35 years follows with number of events, month and magnitude range for each
range of M 4.8-4.9; M 5.0-5.9; M 6.0-6.9; M 7.0-7.9 and M greater than or equal to 8.0.
TABLE 3: Earthquakes Per Magnitude Range 1990-2024
M4.8-4.9 M 5.0-5.9 M 6.0-6.9 M 7.0-7.9 M>=8.0
NO MO MAG # MON MAG # MON MAG # MON MAG # MON MAG
1474 01 4 4831 01 5 425 01 6 67 01 7 1 01 8
1419 02 4 4604 02 5 434 02 6 42 02 7 3 02 8
1719 03 4 5283 03 5 504 03 6 44 03 7 4 03 8
1491 04 4 4633 04 5 560 04 6 48 04 7 4 04 8
1400 05 4 4512 05 5 454 05 6 46 05 7 4 05 8
1384 06 4 4236 06 5 414 06 6 41 06 7 3 06 8
1381 07 4 4560 07 5 437 07 6 47 07 7 2 07 8
1422 08 4 4650 08 5 448 08 6 57 08 7 3 08 8
1510 09 4 4595 09 5 481 09 6 47 09 7 7 09 8
1647 10 4 4781 10 5 486 10 6 47 10 7 2 10 8
1628 11 4 4699 11 5 476 11 6 65 11 7 2 11 8
1648 12 4 5265 12 5 447 12 6 44 12 7 3 12 8
NEIC reported an earthquake of M 3.3 in Southern California was felt with intensity up to III in the area(s) of Southern California at Los Angeles, Sylmar, II in West Hollywood, Chattsworth, Thousand Oaks, Oak Park, Malibu, Glendale, Woodland Hills.
NEIC reported an earthquake of M 4.4 Oaxaca, Mexico was felt with intensity up to III in the area(s) of Mexico in Xadani.
NEIC reported an earthquake of M 4.0 in Tarapaca, Chile was felt with intensity up to II in the area(s) of Tarapaca, Chile at Iquique.
GUC gave the following parameters for this earthquake:
02-12-2024 20:26 21.41 70.06 57 4.4 III Arica and Parinacota at Arica and San Miguel de Azapa. III Tarapaca at El Loa and II in Antofagasta at Tocopilla, Chile.
NEIC reported an earthquake of M 4.0 in Guatemala was felt with intensity up to IV in the area(s) of Guatemala at Jocotenango and San Miguel, Sacatepequez and in San Juan la Laguna, Solola.
NEIC reported an earthquake of M 4.1 in Cyprus was felt with intensity up to IV in the area(s) of Cyprus at Lemesos, Mouttagiaka and Kofinou (II).
EMSC reported moderate shaking in Cyprus at Zygi, Agio Tychon, Mouttagiaka, Germasgeia, Limassol, Parekklisha, Agios Athanasios among others.
NEIC reported an earthquake of M 3.7 in Southern Alaska was felt with intensity up to II in the area(s) of Southern Alaska at Anchorage, Chugiak, Valdez.
NEIC reported an earthquake of M 2.6 in Southern California was felt with intensity up to IV in the area(s) of Southern California at Ventura and Mojave.
GEONET reported an M 4.0 was felt on South Island today with the following parameters:
O: 02DEC2024 08:06:35 45.1S 167.4E MS=4.0 GEONET Felt with weak intensity in the area south of Te Anau, South Island. 77 reports of felt intensity came from the area east and north of the epicenter including 368 with weak intensity; 62 light; 14 moderate; 1 strong; 0 severe and 0 extreme.
No Tropical Cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3550 0134 0141 0146 C2.7 (December 2, 2024) 1.5E-03
New Brunswick Canada M 3.4 01:36 UT
3580 0346 0355 0401 C3.5 (December 2, 2024) 2.8E-03
Guerrero M 4.1 03:43 UT
3650 0646 0705 0715 C4.1 (December 2, 2024) 1.5E-03
Molucca Sea M 4.3 07:05 UT
Guerrero M 4.2 07:07 UT
3700 0956 1003 1012 C3.6 (December 2, 2024) 3.0E-03
3730 1121 1133 1150 C4.1 (December 2, 2024) 6.2E-03
So Panama M 4.2 11:34 UT
3770 1617 1629 1641 C4.9 (December 2, 2024) 5.4E-03
3780 1806 1817 1835 C2.5 (December 2, 2024) 4.1E-03
Seram M 4.1 18:18 UT
Mindanao M 4.1 18:20 UT
3840 2214 2242 2301 C4.6 (December 2, 2024) 1.0E-02
Guatemala M 4.0 23:06 UT
GEOMAGNETIC FIELD: quiet December 3-5. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 6 2 6 13:00 2 113 185
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
December 2, 2024
Global seismicity remained quiet today with no significant earthquakes recorded.
In the meantime this summary will provide some additional statistical earthquake analyses
on significant global seismicity. The strongest earthquake of the day
today was an M 5.0 in the mid-Indian Ridge. This event occurred within minutes of local
solar noon at the time of the new moon and had been anticipated in this summary with strong
tides associated with that alignment as:
"The new moon will arrive on December 1, 2024 at 06:21 UT. Longitudes which are at local solar midnight at this time are near 100 West while those at local solar noon are near 80 East. These include, in the west areas of Central U.S. and central Mexico and portions of the East Pacific Rise and in the east in China, Pakistan and India in central Asia and in the South Indian Ocean. These are the regions most likely to see tidal triggering at this time and during the next week. Other areas can also be promoted by tidal stresses. These are most likely to occur near local solar noon and midnight." (November 25-December 1, 2024)
The Indian Ocean quake occurred at 06:12 UT, about 10 minutes after the full moon
in this area.
The world is closing in on a modern global earthquake record. The last earthquake
considered to be of major category (M>=6.9) in the NEIC catalog occurred
on August 25, 2024 with M 6.9. This quiet length will reach 100 days on
December 3, 2024 without such an earthquake, a remarkable period of quiet
seismicity for the world as a whole. The end of such periods often
identify a shorter period of strong activity releasing the pent up stress
accumulated during the quiet period. Following is a listing of the quietest
periods since 1990. The first number in Table 1 belowis the rank among quiet periods, the second the period in days of the beginning
of the quiet; the third is the date of the start of the period and the
fourth is the date of the next event in the world of M>=6.9.
The listing covers quiet periods of two months or longer since 1990.
TABLE 1: NOTABLE EARTHQUAKE QUIET PERIODS (1990-2024)
RANK DAYS Q FIRST DAY LAST DAY
01 104.2 (8-2-2019 11-14-2019)
02 100.0 (8-25-2024 Not finished)
03 92.6 (5-4-2018 8-5-2018)
04 90.7 (11-15-2014 2-13-2015)
05 86.2 (4-2-2024 6-28-2024)
06 85.4 (3-25-2020 6-18-2020)
07 83.0 (10-30-2020 1-21-2021)
08 81.0 (8-20-1998 11-9-1998)
09 79.1 (11-25-2013 2-12-2014)
10 78.9 (7-13-1991 9-30-1991)
11 77.3 (3-28-2005 6-13-2005)
12 76.8 (12-29-2021 3-16-2022)
13 75.1 (11-14-2019 1-28-2020)
14 69.7 (3-17-2003 5-26-2003)
15 68.5 (5-21-2021 7-29-2021)
16 66.5 (3-1-2019 5-6-2019)
17 66.3 (12-27-1991 3-2-1992)
18 65.7 (8-12-1990 10-17-1990)
19 64.2 (11-17-2002 1-20-2003)
20 63.1 (4-26-2002 6-28-2002)
21 63.1 (7-19-1997 9-20-1997)
22 62.9 (2-24-2001 4-28-2001)
23 62.5 (5-28-2016 7-29-2016)
24 62.4 (3-20-2021 5-21-2021)
25 62.1 (6-15-1999 8-17-1999)
26 61.9 (5-16-2006 7-17-2006)
27 61.5 (5-26-2022 7-27-2022)
28 61.1 (1-22-2024 3-23-2024)
It is notable that many of the periods of strongest quiescence occur in the
northern summer into late fall. These included the current period (rank 2)
and the nearly identical Period of August to November, 2019 (rank 1). Other
similar by shorter periods occurred in 1991 (#10), 1990 (#18), 1998 (#8).
Only one such quiet period begins in January or February and there are none
of these which begin in September. The list of beginning of quiet period follows:
TABLE 2: NUMBER OF NOTABLE EARTHQUAKE QUIET PERIODS (1990-2024)
Beginning of quiet Periods
Month Number of periods
DEC 2
JAN 1
FEB 1
MAR 5
APR 2
MAY 5
JUN 1
JUL 2
AUG 3
SEP 0
OCT 1
NOV 4
End of quiet Periods
Month Number of periods
DEC 0
JAN 3
FEB 2
MAR 3
APR 1
MAY 3
JUN 4
JUL 4
AUG 2
SEP 2
OCT 1
NOV 2
Of all quiet periods of any length the most active (least number of days)
occurrs in February-March with 192 in those four months, and the most quiet
from August through November with 223 in those four months.
This seasonal pattern of general global seismicity suggests a seasonal
trigger. One such could be weather patterns during which major storms over
oceans in the northern hemisphere occur in the months when there is quiet
seismicity at these magnitude. A hypothesis would be consistent with
these data is that major storms can trigger smaller earthquakes leaving
the larger earthquake - as in this study - to occur later leading to the pattern observed.
NEIC reported an earthquake of M 2.7 in Central California was felt with intensity up to III in the area(s) of Central California at San Jose with II in Fairfield, Mount Hamilton.
NEIC reported an earthquake of M 3.5 in New Brunswich, Canada was felt with intensity up to III in the area(s) of New Brunswich, Canada in Maine at Mars Hill, Conticello, Presque Isle, Van BurenBlaine, Easton and II in South Hadley, Massachusetts; Milford Connecticut and in New Brunswich at Bathurst and Fredericton.
EMSC reported scary, loud noise at Stanley.
NEIC reported an earthquake of M 2.7 in Kansas was felt with intensity up to III in the area(s) of Kansas at Bogue and Hill City with II in Maize.
NEIC reported an earthquake of M 3.4 off the coast of Washington State was felt with intensity up to IUU in the area(s) of Washington State at Everett.
TROPICAL CYCLONE FENGAL (04B)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC FENGAL 2024-12-02 00:00 UT 12.1N 79.9E 045 kts north of Sri Lanka
Tropical Cyclone Fengal (04B) continued today in the area of the north Indian Ocean near Sri Lanka with winds up to 45 kts. It is expected to track to the north over the next several days making landfall in southern India and to dissipate Around December 2. Some enhanced seismicity in the areas of northern India and Tajikistan is possible as this storm makes landfall.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3370 0443 0504 0525 C3.2 (December 1, 2024) 6.9E-03
3380 0638 0644 0652 C3.6 (December 1, 2024) 1.2E-03
3390 0739 0750 0803 C3.1 (December 1, 2024) 3.9E-03
Myanmar M 4.6 07:57 UT
3460 1502 1508 1514 C2.0 (December 1, 2024) 1.4E-03
3480 1611 1622 1628 C5.5 (December 1, 2024) 3.4E-03
GEOMAGNETIC FIELD: active December 2 unsettled December 3 and quiet December 4. Solar M-flare chance: 35% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 7 5 6 10:00 4 83 186
A strong Gamma Ray Burst was recorded by SWIFT on November 28, 2024 at 16:13:34 UT (#241128A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 27, 2024 at 21:42:16 UT (#241127A). A preliminary UVOT Magnitude of V=19.7 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
December 1, 2024
The strongest earthquake in the world today was an M 5.7 in the Ryukyu Islands, Japan. NEIC reported it was felt with intensity III in Chatan Okinawa, Japan.
It was accompanied by foreshocks of M 4.8 and an aftershock of M 5.2, among others which
were also felt lightly in the Ryukyu Islands. It is likely that these earthquakes
were triggered by solar flares 3200 and 3210 - the largest flares of the day -
as they occurred near the peak of both flares. SWPC flare data for these
events follows:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3200 0837 0851 0859 C4.3 (November 30, 2024) 5.3E-03
Ryukyu Is. M 5.7 08:46 UT
3210 0859 0906 0912 C9.3 (November 30, 2024) 5.9E-03
Ryukyu Is. M 5.2 09:07 UT
An M 5.4 was also located today in the region of western Mexico near the Revilla Gigedo Islands. Neic reported light intensity was felt in Jalisco, Mexico at Puerto Vallarta and in Mexico at Tlalnepantla.
This epicenter is located at the antipode of Tropical Cyclone Bheki as it reached
maximum wind strengths in the South Indian Ocean about a week ago and may
may been enhanced by antipodal stresses associated with that storm. Initial
dat from NHC for this storm follows:
"TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-17 00:00 UT 16.0S 70.7E 135 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 135 kts. It is expected to track to the south and west over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days." (November 22, 2024)
and
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 90 kts. It is expected to track to the WSW over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days." (November 21, 2024)
The Mexican event may also have been promoted by SFE associated with solar flare (SWPC # 3270) as
it occurred towards the end of that flare. Data from SWPC for this flare follow:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3270 1444 1453 1505 C2.1 (November 30, 2024) 1.0E-03
Tonga M 4.6 14:48 UT
Gulf of California M 4.2 15:02 UT
Banda M 4.4 15:06 UT
Tonga M 4.7 15:06 UT
Revilla Gigedo Islands, Mexico M 5.4 15:08 UT
The strongest earthquake in the U.S. or Canada today was an M 4.0-4.2 in Hawaii. NEIC reported it was widely felt with intensity III in Hawaii at Captain Cook, Hakalau, Honokaa, Honomu, and II in Hawaii National Park, Hawi, Hilo, Holualoa, Honaunau, Kailua Kona.
NEIC reported an aftershock of M 3.1 in Hawaii was felt with intensity up to IV in the area(s) of Hawaii at Naalehu and II in Volcano.
EMSC reported M 4.2 was felt as a quick jolt at Honokaa and Kailua Kona, Hawaii.
NEIC reported this earthquake of M 2.7 in Missouri was felt with intensity up to III in the area(s) of Missouri at Matthews, New Madrid, iwth II at Catron and Lilourn, Missouri, Henderson, Tennessee, Utica, Kentucky and Browsburg, Indiana.
NEIC reported this earthquake of M 4.7 in Guam was felt with intensity up to IV in the area(s) of Guam in Mangilao, and II in Yona, Yigo.
GUC reported an earthquake of M 4.6 in northern Chile today was felt with the following parameters:
30-11-2024 18:34 18.38 69.65 115 4.6 IV Arica and Parinacota at Arica and San Miguel de Azapa.
TROPICAL CYCLONE FENGAL (04B)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC FENGAL 2024-12-01 00:00 UT 12.1N 79.9E 045 kts north of Sri Lanka
Tropical Cyclone Fengal (04B) continued today in the area of the north Indian Ocean near Sri Lanka with winds up to 45 kts. It is expected to track to the north over the next several days making landfall in southern India and to dissipate Around December 2. Some enhanced seismicity in the areas of northern India and Tajikistan is possible as this storm makes landfall.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3130 0119 0129 0136 C3.5 (November 30, 2024) 2.9E-03
Fiji Is. M 4.5 01:19 UT
3160 0556 0600 0604 C5.6 (November 30, 2024) 1.9E-03
Puerto Rico M 3.6 05:56 UT
3170 0726 0733 0742 C3.5 (November 30, 2024) 2.9E-03
3180 0753 0758 0803 C2.6 (November 30, 2024) 1.6E-03
Kermadec Is. M 4.6 07:52 UT
3200 0837 0851 0859 C4.3 (November 30, 2024) 5.3E-03
Ryukyu Is. M 5.7 08:46 UT; M 4.8 08:34 UT
Mindanao M 4.0 08:46 UT
3210 0859 0906 0912 C9.3 (November 30, 2024) 5.9E-03
Ryukyu Is. M 5.2 09:07 UT
Honshu M 4.3 09:06 UT
3230 1034 1045 1051 C5.3 (November 30, 2024) 3.5E-03
Mariana Islands M 5.1 10:34 UT
Guatemala M 4.4 10:53 UT
3270 1444 1453 1505 C2.1 (November 30, 2024) 1.0E-03
Tonga M 4.6 14:48 UT
Gulf of California M 4.2 15:02 UT
Banda M 4.4 15:06 UT
Tonga M 4.7 15:06 UT
Revilla Gigedo Islands, Mexico M 5.4 15:08 UT
3280 1517 1524 1532 C3.0 (November 30, 2024) 1.1E-03
3300 1609 1618 1625 C3.2 (November 30, 2024) 2.5E-03
Mindanao M 4.6 16:10 UT
This earthquake occurred within minutes of local solar midnight and was probably
promoted by SFE associated with this flare. SFE is strongest near local solar noon and midnight.
It may also have been promoted by stresses associated with the new moon of
December 1 as noted in previous issues of this summary:
"The new moon will arrive on December 1, 2024 at 06:21 UT. Longitudes which are at local solar midnight at this time are near 100 West while those at local solar noon are near 80 East. These include, in the west areas of Central U.S. and central Mexico and portions of the East Pacific Rise and in the east in China, Pakistan and India in central Asia and in the South Indian Ocean. These are the regions most likely to see tidal triggering at this time and during the next week. Other areas can also be promoted by tidal stresses. These are most likely to occur near local solar noon and midnight." (November 25-December 1, 2024)
GEOMAGNETIC FIELD: active December 1 unsettled December 2 and quiet December 3. Solar M-flare chance: 40% X-class: 5% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 11 5 9 01:00 4 103 204
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 30, 2024
NEIC reported an earthquake of M 4.8 in Cyprus was felt with intensity up to IV in the area(s) of in Cyprus at Alanya Antalya, Turkey and in Cyprus with II-III in Pafos, Gorme. Guzelyurt, Nicosia, Chlorakas, Geri, Lemesos, Lefka dn Pano Polemida.
EMSC reported strong shaking in Turkey at Kargicak, Korubasi, Kestel, Gazipasa, Mahmutlar, Guller Pinari, Tosmur, Oba, Cumhuriyet, Sugozu, Guller Pinari, Cikcilli, Bektas, Avsallar, Yukari Pazarci, Ilica, Guzelyurt, Toroslar, Belek, Manavgat and in Cuprus at Polis Chrysochous, Empa, Paphos, Kakopetria, Kouklia, Aydemet among others.
This was the largest earthquake felt in the world today, on a quiet day in
global seismicity. It may have been promoted by SFE associated with solar
flare 3050 - a C4,4 flare and the second largest of the past 24 hours.
Data for this flare from SWPC follows:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3050 1859 1907 1915 C4.4 (November 29, 2024) 1.4E-03
Molucca M 4.5 18:57 UT
Cyprus M 4.8 19:13 UT
NEIC reported this earthquake of M 3.3 in Hawaii was felt with intensity up to IV in the area(s) of at Mountain View and Naalehu, and II in Captain Cook, Hakalau, Honokaa, Kamuela, Pepeekeo and Volcano.
NEIC reported this earthquake of M 3.5 in Central Alaska was felt with intensity up to IV in the area(s) of at Matanuska-Susitna Borough, and II at Eagle River, Girdwood, Talkeetna, Willow and Anchorage.
NEIC reported this earthquake of M 5.2 in Northern Peru was felt with intensity up to IV in the area(s) of in Northern Peru at Trujillo La Libertad, Peru.
NEIC reported this earthquake of M 2.7 in Southern Texas was felt with intensity up to II-III in the area(s) of at Southern Texas in Hobson and Poth.
TROPICAL CYCLONE FENGAL (04B)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC FENGAL 2024-11-30 00:00 UT 12.5N 81.5E 065 kts north of Sri Lanka
Tropical Cyclone Fengal (04B) formed today in the area of the north Indian Ocean near Sri Lanka with winds up to 65 kts. It is expected to track to the north over the next several days making landfall in southern India and to dissipate Around December 2. Some enhanced seismicity in the areas of northern India and Tajikistan is possible as this storm makes landfall.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2870 0257 0301 0305 C5.3 (November 29, 2024) 1.4E-03
Fiji M 4.4 03:05 UT
2890 0440 0447 0451 C4.5 (November 29, 2024) 1.3E-03
Bali M 4.3 04:49 UT
2910 0603 0612 0620 C3.1 (November 29, 2024) 2.9E-03
2950 0758 0831 0848 C4.9 (November 29, 2024) 1.1E-02
3040 1743 1751 1801 C3.1 (November 29, 2024) 7.8E-04
Honshu M 4.7 17:46 UT
3080 1801 1808 1813 C2.7 (November 29, 2024) 1.9E-03
3050 1859 1907 1915 C4.4 (November 29, 2024) 1.4E-03
Molucca M 4.5 18:57 UT
Cyprus M 4.8 19:13 UT
3060 2010 2016 2023 C2.9 (November 29, 2024) 2.6E-03
3090 2023 2030 2038 C5.5 (November 29, 2024) 4.2E-03
Talaud M 4.6 20:39 UT
GEOMAGNETIC FIELD: active November 30 and quiet December 1-2. Solar M-flare chance: 40% X-class: 10% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 3 6 11:00 4 162 220
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
The new moon will arrive on December 1, 2024 at 06:21 UT. Longitudes which are at local solar midnight at this time are near 100 West while those at local solar noon are near 80 East. These include, in the west areas of Central U.S. and central Mexico and portions of the East Pacific Rise and in the east in China, Pakistan and India in central Asia and in the South Indian Ocean. These are the regions most likely to see tidal triggering at this time and during the next week. Other areas can also be promoted by tidal stresses. These are most likely to occur near local solar noon and midnight.
November 29, 2024
NEIC reported an earthquake of M 4.3 South of Bali was felt with intensity up to III in the area(s) South of Bali at Kuta.
EMSC reported strong shaking in Kuta Selatan, Indonesia.
This event occurred within minutes of the maximum output of solar flare 2890
and may have been promoted by SFE associated with that flare. Data for
this earthquake and flare from NEIC and SWPC follow:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2890 0440 0447 0451 C4.5 (November 29, 2024) 1.3E-03
Bali M 4.3 04:49 UT
NEIC reported this earthquake of M 3.2 in Oklahoma was felt with intensity up to III in the area(s) of Oklahoma in Shawnee, Meeker, Prague, Sparks, and II in Sand Springs, Skiatook and Stroud.
An earlier event in Oklahoma today was reported by NEIC to have been felt with intenisty III in Oklahoma at Edmond, Oklahoma City. Arcadia.
NEIC reported this earthquake of M 4.3 in Southern Italy was felt with intensity up to IV in the area(s) of Southern Italy in Calabria with VI in Cosenza, V in Cerisano, IV in Spezzano Piccolo and II-III in Amantea, Francavilla Marittima, and Rende.
NEIC reported this earthquake of M 3.0 in San Clemente Is, Southern California was felt with intensity up to I in the area(s) of San Clemente Is, Southern California in San Diego.
NEIC reported this earthquake of M 3.7 in Dominican Republic was felt with intensity up to II in the area(s) of Dominican Republic in La Romana.
NEIC reported this earthquake of M 2.7 in Mammoth Lakes, California was felt with intensity up to IV in the area(s) of Mammoth Lakes, California at Bishop.
NEIC reported this earthquake of M 2.8 in Northern California was felt with intensity up to IV in the area(s) of Northern California in Norden and Truckee.
NEIC reported this earthquake of M 3.4 in Northern California was felt with intensity up to IV in the area(s) of Northern California at Redding and Gerber and I in Cottonwood and Red Bluff.
NEIC reported this earthquake of M 4.5 in North-central Honshu was felt with intensity up to IV in the area(s) of in North-central Honshu Takayama, Gifu.
NEIC reported this earthquake of M 2.5 in Mississippi was felt with intensity up to IV in the area(s) of Mississippi at Brandon; II in Booneville and Vicksburg and I in Ridgeland.
NEIC reported these earthquakes of M 5.1 in Hindu Kush, Afghanistan were felt with intensity up to III in the area(s) of Hindu Kush, Afghanistan in Tasjent, Uzbekistan and II in Gilgit, Pakistan.
EMSC reported this earthquake of M 5.2 in Hindu Kush, Afghanistan was felt with intensity up to IV in the area(s) of Hindu Kush, Afghanistan in Nowshera Contonment, Abbottabad, Pakistan, Dushanbe, Tajikistan, in Jamur and Kashmir, India at Handwara, in Uzbekistan in Namangan, Tashkent, and at Kabul, Afghanistan.
EMSC reported this earthquake of M 4.1 in Eastern Turkey was felt with intensity up to IV in the area(s) of Turkey at Incili Pinar, Kolejtepe, and 75. Yil.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2490 0239 0245 0256 C2.9 (November 28, 2024) 2.2E-03
2530 0511 0514 0518 C7.0 (November 28, 2024) 2.3E-03
Kazakhstan M 4.2 05:36 UT
2540 0628 0633 0639 C6.7 (November 28, 2024) 4.0E-03
Peru M 4.3 06:46 UT
2830 2240 2251 2300 C4.0 (November 28, 2024) 3.9E-03
Sumatra M 4.2 22:45 UT
Kermadec M 4.9 23:25 UT
Vanuatu M 4.6 23:26 UT
GEOMAGNETIC FIELD: major storms November 29 active November 30 and quiet December 1. Solar M-flare chance: 65% X-class: 20% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 4 1 3 18:00 2 149 214
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
The new moon will arrive on December 1, 2024 at 06:21 UT. Longitudes which are at local solar midnight at this time are near 100 West while those at local solar noon are near 80 East. These include, in the west areas of Central U.S. and central Mexico and portions of the East Pacific Rise and in the east in China, Pakistan and India in central Asia and in the South Indian Ocean. These are the regions most likely to see tidal triggering at this time and during the next week. Other areas can also be promoted by tidal stresses. These are most likely to occur near local solar noon and midnight.
November 28, 2024
The strongest earthquakes in the world today occurred within about 5 minutes of each other were moderately strong events of M 5.7-5.8
in the area north of North Island, New Zealand and north of Manila, Philippines.
The event in Luzon, Philippines is the strongest within about 200 km since an M 6.1 on April 22, 2019.
At the time this summary noted:
"NEIC reported major damage in the Luzon quake with intensity up to IX. VIII was reported from Central Luzonad Del Carmen with VII in Bodega, Calangain, Guta, Hermosa, Lubao and VI in San Benito, Irani and San Basilio, Central Luzon and as far as 150 km from the epicenter with intensity up to IV.
PHIVOLCS reported it was felt with intensity VI - San Marcelino, and Subic, Zambales; Floridablanca, Lubao, and Porac, Pampanga; Angeles City; Olongapo City; Intensity V - Castillejos, and San Felipe, Zambales; Magalang, Mexico, and San Fernando, Pampanga; Abucay, Balanga, and Mariveles, Bataan; Malolos, and Obando, Bulacan; Indang, Cavite; Lipa City; Makati City; Mandaluyong City; Manila City; Quezon City; Pasay City; San Juan City; Taguig City; Tarlac City; Valenzuela City; Intensity IV - Meycauayan, Plaridel, and San Jose Del Monte, Bulacan; San Rafael, Tarlac; Rosales and Villasis, Pangasinan; Itogon, and La Trinidad, Benguet; Kasibu, Nueva Vizcaya; Gabaldon, Nueva Ecija; San Mateo, Rizal; Bacoor, Imus, and Maragondon, Cavite; Nasugbu, Batangas; Antipolo City; Baguio City; Caloocan City; Las Pi¤as City; Marikina City; Pasig City; Tagaytay City; Intensity III - Marilao, Bulacan; Santo Domingo, and Talavera, Nueva Ecija; Maddela, Quirino; Dingalan, Aurora; Lucban, Quezon; Santa Cruz, Laguna; Carmona, Dasmari¤as, General Trias, and Silang, Cavite; San Nicolas and Talisay, Batangas; Cabanatuan City; Calamba City; Gapan City; Muntinlupa City; Palayan City; Intensity II - Baler, Aurora; Philippines.
This was the strongest shallow focus earthquake within about 150 km of Manila and this epicenter
since an M 6.2 on October 9, 2003. Intermediate focus events of M 6.1-6.4
hit this area on August 11, 2017 and October 8, 2004 (M 6.2 and 6.4) " (April 23, 2019)
NEIC reported today's event in Luzon, Philippines was felt with maximum intensity IV in Central Luzon at Mapalacsiao, Calibungan; Cainta Southern Tagalog and in Manila with intensity up to IV. The depth of this quake was 182 km mitigating surface effects considerably. Today's earthquake in Luzon was located at 15.4N 120.8E with the following
PHIVOLCS reported intensity III in Cabangan, Zambales; II in Sta. Ignacia, Mayantoc, San Clemente, Ramos and Camiling, Tarlac, Palauig, San Antonio, Masinloc, Iba, Subic, San Narcisoc and San Marcelina, Zambales and I in Zambales, Tarlac and Bataan, Philippines.
Parameters for the events in New Zealand and the Philippines from NEIC to follow.
The epicenter in New Zealand is too far from to have been triggered by
the event in the Philippines five minutes later. The first seismic waves arrived
10-15 minutes later. It is likely that both the events in Luzon and New Zealand
may have been promoted by SFE from solar flare 2390 - a C3.4 event which occurred
while New Zealand was near local solar noon and SFE are most pronounced.
Data from SWPC and associated earthquakers with this flare follow:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2390 2152 2200 2205 C3.4 (November 27, 2024) 2.2E-03
Hawaii M 2.3 21:53 UT
Luzon, Philippines M 5.7 21:58 UT
New Zealand M 5.8 22:03 UT
The event in the Luzon area of the Philippines occurred following a series
of major Tyhoons hit the region in the past 10 days. This included the latest -
a Super Typhoon (Man-Yi) which did extensive damage to the region about a week
ago. This summary had anticipated this typhoon was likely to trigger a moderate
to strong earthquake in the area as reported at the time:
"TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-17 00:00 UT 15.8N 121.9E 160 kts Central Philippines
Typhoon Man-yi (TD 25W) continued today in the area of Luzon, Philippines with winds up to 160 kts where it made landfall with loss of life, torrential rains and winds and flooding. It is likely to track to the west dissipating by November 21. Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17." (November 17, 2024)
O: 27NOV2024 21:58:45 15.4N 120.8E MS=5.7 NEIC Luzon, Philippines
This moderately strong earthquake Luzon, Philippines occurred at the end of
a migration of moderate earthquakes from Mindanao to Leyte northward to Luzon
throughout the day. One interesting aspect of these four earthquakes in
the Philippines is that each occurred near the peak of a moderate solar flare.
Data for these flares and associated comments on the earthquakes follow:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2230 0852 0856 0905 C3.0 (November 27, 2024) 2.5E-03
Guerrero M 5.0 08:59 UT
Mammoth Lakes, CA, M 3.7, 2.2, 2.5 08:51 UT 08:54 UT
Mindanao Philippines, M 5.0 08:59 UT
NEIC reported this earthquake of M 5.0 in Northern Mindanao, Philippines was felt with intensity up to IV in the area(s) of Northern Mindanao, Philippines at Buenavista, Carag and Butuan, Caraga, Philippines.
PHIVOLCS reported intensity III in Cagwait, Surigao del Sur and II in the City of Bislig and Tagbina, Surigao del Sur.
2150 1227 1246 1249 M1.0 (November 27, 2024) 1.2E-02
India M 4.3 12:50 UT
Leyte, Philippines M 4.9 12:33 UT
NEIC reported this earthquake of M 4.9 in Leyte, Philippines was felt with intensity up to IV in the area(s) of Leyte, Philippines at Pilar Caraga.
PHIVOLCS reported intensity III in Basilisa, Cagdianao, Dinagat, Libjo, San Jose and Tubajon, Dinagat Islands and II in Loreto, Dinagat Islands; Anahawan, Hinundayan, San Francisco, San Juan and San Ricardo, Southern Leyte.
2320 1757 1811 1838 C6.0 (November 27, 2024) 1.3E-02
Samar, Philippines M 4.6 18:04 UT M 4.2 18:14 UT
San Francisco, CA M 2.0 17:49 UT
2390 2152 2200 2205 C3.4 (November 27, 2024) 2.2E-03
Hawaii M 2.3 21:53 UT
Luzon, Philippines M 5.7 21:58 UT
New Zealand M 5.8 22:03 UT
The earthquake in New Zealand of M 5.8 was reported by NEIC to have been felt with
maximum intensity VI in Gosborne at Ruatoria and III in Gisborne and intensity II
in the Bay of Plenty area at Te Kaha and Whakatane.
GEONET noted the quake with Mb 6.0 had 477 people feeling this earthquake in the Te Araroa region north of North Islands with 352 at weak intensity and 107 with light shaking and 17 with moderate intensity 0 with strong, 1 with severe and 0 with extreme intensity.
This is the strongest earthquake off northern North Island within about 200 km
of this epicenter since an M 6.0 on April 5, 2021. At the time this summary noted:
"The strongest earthquake in the world today was an aftershock of M 6.0 north of North Island, New Zealand.
NEIC reported it was felt with intensity VI in Gisborne, North Islands, New Zealand at Ruatoria; V in Tolaga Bay, Nuhaka, Hawke's Bay; IV in the Bay of Plenty at Te Kaha, Opotiki and Gisborne and II-III in Turangi, Palmerston North, and Wellington.
GEONET reported this event was felt with moderate intensity in North Island, New Zealand with 7826 reports of which 4999 reported weak shaking; 2451 light, 349 moderate, 17 strong, 3 Severe and 7 extreme intensity.
This is the strongest aftershock of the M 7.3 off North Island, New Zealand
of March 4 since an M 6.0-6.1 on March 6, a month ago." (April 5, 2021)
NEIC and GEONET parameters for this event are:
O: 27NOV2024 22:03:56 37.7S 179.7E MS=5.8 NEIC Gisborne, North Island, New Zealand
O: 27NOV2024 22:03:59 37.7S 179.7E MB=6.0 GEONET North Island, New Zealand
The largest earthquake today in the U.S. or Canada occurred as an M 4.6 off the coast of Oregon. It was not reported felt.
This follows a similar event west of Washington and Oregon on November 24 as
reported in this summary at the time.
"The Strongest earthquake in the U.S. or Canada today was an M 4.6 off the coast of Washington State. NEIC reported it was felt lightly in Victoria, British Columbia, Canada.
The last earthquake within about 150 km of this epicenter off the coast of Washington State occurred on August 19, 2012 with M 5.6. A series
of moderately strong to strong earthquakes" (November 24, 2024)
A strong earthquake of M 6.0-6.1 hit this region off western Oregon on October 30, 2024
and was noted in this summary as:
"An earthquake of M 6.0 occurred minutes into the time of occurrence of these flare off the coast of Oregon.
This earthquake occurred within several minutes of local solar noon and was
likely triggered by Solar Flare Effects (SFE) from this flare which maximize near
local solar noon. It also occurred shortly about an hour after a strong Gamma Ray
Burst. Both the flare and the M 6.0-6.1 earthquake may have been triggered
by energy flux associated with the Gamma Ray Burst (GRB #241030).
The last earthquakes within about 200 km of today's epicenter with M>=6 occurred
with M 6.3 on August 29, 2019 and M 6.2 on August 22, 2018. Only one other such
event has hit the area in the past 15 years - an M 6.0 on April 11, 2012.
At the time of the 2019 event this summary noted:
"This is the strongest earthquake off the coast of Oregon within about 250
km of this epicenter in more than 10 years - since an M 6.3 on January 10, 2008
and prior to that an M 6.3 on January 16, 2003. The only event in the region
with greater magnitude in the past 30 years was an M 6.9 on July 13, 1991." (August 29, 2019, October 30, 2024)
The strongest earthquake in the U.S. or Canada today was an M 3.7-4.0 in Mammoth Lakes, California (or two of M 3.7). NEIC reported these were felt with intensity up to III in the Mammoth Lakes, June Lake and La Grange regions.
A foreshock of M 2.8 was felt with intensity III at Mammoth several minutes before the mainshock. This event occurred near local solar midnight and may have been promoted by strong solar or tidal stresses which have maximum influence on seismicity near this hour.
While an M 3.8 was felt in the region of Mammoth Lakes on November 14, 2022, the last
event of M>=4.0 occurred on April 5, 2020. This event occurred near local solar
midnight and may have been promoted by strong solar or tidal stresses which
have maximum influence on seismicity near this hour. At the time this summary noted:
"An unusually large M 3.8 earthquake occurred today in the Mammoth Lakes aea of Central California today. NEIC reported intensity III in Ludlow, Bishop and Mariposa and II in Hawthorne, Mammoth Lakes, Auberry and North Fork, California." (November 15, 2024)
and
"The strongest earthquake in the U.S. or Canada today was an M 4.4 in the Mammoth Lakes, California area. NEIC reported intensity III-IV in Mammth Lakes and northeast Fresno County and II-III within about 100 km at June Lake, Benton, Bishop, Shaver Lake, Oakhurst, Bass Lake and Yosemite.
This may be related to the strong nor'easter which was simultaneous with the
M 4.9 in Southern California yesterday. A pair of light earthquakes were also
felt in the San Francisco area today with M 2.4 and 2.7. California may be heading into a period
of high seismicity which generally lasts from mid-April to early May and can
include moderate to strong quakes near the coast. Researchers have suggested this seasonal pattern may be related to weather, percolation and rainfall. The largest event in this
period in the State was an M 8.3 in San Francisco in 1906. Weather was factor
in that event, although not a strong nor'easter, weather maps from this date show a strong low pressure system over the area with winds to the northeast, typical of a nor'easter. While details cannot be found
the strongest snowfall event in the northeastern U.S. occurred about a week before
the San Francisco earthquake - for example, measuring 15 inches on April 10 in Portland, Maine, the largest snowfall in April ever recorded. This was probably part of a regional nor'easter. More directly associated with
this northeastern U.S. weather event was an M 7.5, also on April 10, 1906 in the
Gulf of California - a direct precursor to the San Francisco quake. A felt foreshock
to that event occurred 10 hours after the Gulf of California event in San Francisco of unknown magnitude. Unusual local winds from the east
were blowing when the earthquake occurred. These strange winds were one of the
prime causes of the massive fire which followed the earthquake. A strong storm
dumped inches of snow in the Mammoth Lakes region today and may have helped
promote this unusual earthquake of M 4.4." (April 5, 2020)
Today's activity in California may also be related to a nor'easter moving into the northeastern
U.S. and expected to hit today or tomorrow. Such events near the Pacific-North American Plate boundary frequently as closely
associated and noted in this summary on many previous occasions.
NEIC reported this earthquake of M 3.4 in Northern California was felt with intensity up to II in the area(s) of Northern California in Redding.
NEIC reported this earthquake of M 3.1 in Hawaii was felt with intensity up to II in the area(s) of Hawaii at Volcano and Hawaii National Park.
NEIC reported this earthquake of M 3.0 in Nevada was felt with intensity up to II in the area(s) of Nevada at Glenbrook.
NEIC reported this earthquake of M 4.5 in Xinjiang, China was felt with intensity up to II in the area(s) of Xinjiang, China at Almaty. Kazakhstan.
EMSC reported moderate shaking in Kazakhstan at Almaty, E'nergeticeskiy and Ashhybulaq.
NEIC reported this earthquake of M 3.1 in Kenai Peninsula, Alaska was felt with intensity up to IV in the area(s) of Kenai Peninsula, Alaska at Soldotna, and II in Anchorage, Indian and Seward, Alaska.
NEIC reported this earthquake of M 4.6 in Taiwan was felt with intensity up to II-III in the area(s) of Taiwan in Taichung, Taipei and Taoyuan Counties.
EMSC reported long shake in Taipei City.
NEIC reported this earthquake of M 4.3 in Manipur, India was felt with intensity up to IV in the area(s) of Manipur, India and Bokokhat with intensity II.
NEIC reported this earthquake of M 3.5 in Hawaii was felt with intensity up to II-III in the area(s) of Hawaiii at Hilo and Pepeekeo.
NEIC reported this earthquake of M 2.8 in Southern California was felt with intensity up to IV in the area(s) of Southern California in Arroyo Grande and Buellton.
EMSC reported this earthquake of M 4.2 in Tunisia was felt with intensity up to IV in the area(s) of Tunisia in El Fahs and Tunis.
EMSC reported this earthquake of M 4.4 in Iran was felt with intensity up to IV in the area(s) of Iran in Ad Dawhah, Qatar.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1980 0218 0228 0238 C3.5 (November 27, 2024) 1.0E-03
Honshu M 4.0 02:29 UT
1990 0257 0302 0307 C3.2 (November 27, 2024) 1.9E-03
Eastern Turkey M 4.1 02:57 UT
2090 0824 0827 0829 C3.1 (November 27, 2024) 1.4E-03
2220 0829 0836 0852 C3.2 (November 27, 2024) 9.0E-04
Banda Sea M 4.0 08:41 UT
2230 0852 0856 0905 C3.0 (November 27, 2024) 2.5E-03
Mammoth Lakes, CA, M 3.7, 2.2, 2.5 08:51 UT 08:54 UT
Mindanao Philippines, M 5.0 08:59 UT
Guerrerp M 5.0 08:59 UT
2120 1002 1020 1030 C9.5 (November 27, 2024) 1.1E-02
2130 1130 1145 1155 C7.8 (November 27, 2024) 2.9E-03
Nicaragua M 4.3 11:32 UT
2170 1155 1205 1212 C7.6 (November 27, 2024) 7.8E-03
Chiapas M 4.0 12:05 UT
Maule, Chile M 4.2 12:09 UT
2150 1227 1246 1249 M1.0 (November 27, 2024) 1.2E-02
India M 4.3 12:50 UT
Leyte, Philippines M 4.9 12:33 UT
2290 1556 1602 1607 C3.0 (November 27, 2024) 1.9E-03
Scotia Sea M 5.2 18:59 UT
North Is. New Zealand M 3.1 15:58 UT
2320 1757 1811 1838 C6.0 (November 27, 2024) 1.3E-02
Samar, Philippines M 4.6 18:04 UT M 4.2 18:14 UT
San Francisco, CA M 2.0 17:49 UT
2390 2152 2200 2205 C3.4 (November 27, 2024) 2.2E-03
Hawaii M 2.3 21:53 UT
Luzon, Philippines M 5.7 21:58 UT
New Zealand M 5.8 22:03 UT
GEOMAGNETIC FIELD: minor storms November 28 and major storms November 29 active November 30. Solar M-flare chance: 65% X-class: 20% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 5 2 3 16:00 2 141 225
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
The new moon will arrive on December 1, 2024 at 06:21 UT. Longitudes which are at local solar midnight at this time are near 100 West while those at local solar noon are near 80 East. These include, in the west areas of Central U.S. and central Mexico and portions of the East Pacific Rise and in the east in China, Pakistan and India in central Asia and in the South Indian Ocean. These are the regions most likely to see tidal triggering at this time and during the next week. Other areas can also be promoted by tidal stresses. These are most likely to occur near local solar noon and midnight.
November 27, 2024
A strong earthquake of M 6.1-6.4 occurred in north-central Honshu, Japan today. It was followed by a series of moderate aftershocks.
No tsunami was expected nor observed with this earthquake.
The mainshock was reported by JMA to have been felt in Japan with intensity V- in Ishikawa, IV in Fukui, Toyama, Prefecture; III in Nagano; Gifu, Niigata, Shiga, Kyoto, Hyogo, Tottori, and II-III in Fukushima, Shizuaka, Aichi, Mie, Nara, Shimane, Okayama, Yamanashi, Gunma. among other Prefectures.
NEIC reported maximum intensity VII was felt in Nanao, Ishikawa with intensity V in Japan at Kanazawa, Ishikawa and Yokohama, Kanagawa; III in Takayama, Gifu, Amagasake Hyogo, Kyoto, Nagano, Saku, and II in Nagoya, Aichi, Ritto Shiga.
EMSC reported moderate shaking in Japan at Chuo, Hiroshima, and in Cheonan-si, South Korea.
This appears to be an aftershock of the M 7.5 of January 1, 2024 - the largest
to date of that event. At that time this summary noted:
"A major earthquake of M 7.5-7.6 hit western Honshu, Japan today shortly after
the strongest solar flare since 2017. Local news reported this event killed as many as
six but more casualties are expected as rescue workers remove them from
under collapsed buildings. A strong tsunami accompanied this earthquake. Some
were drowned in the tsunami. Most people have been evacuated mainly to stadiums where
they will remain during the next several days. Initial warnings were for tsunami waves of 3-5 meters in the areas of Hokkaido, western Honshu and Ishikawa. Waves
up to 3 meters were recorded in Niigata and other areas of western Japan. Many houses and much infrastructure was damaged in
the shaking. Internet photos showed massive cracks and collpased structures. A fire broke
out in Wajima City and thousands suffered through power outages.
NEIC reported these earthquakes were damaging with intensity up to IX in the area of Anamizu, Japan.
EMSC reported strong to extreme shaking in Honshu, Japan at Fukui-shi, Maebashi, Menuma, Tokyo, Urayasu, Takarazuka, Kita, Konohana, Osaka among others. A moderate foreshock of M 5.5 hit the area about four minutes before the
mainshock and was also felt with moderate intensity in Japan at Chikusa, Tokorozawa, Taketoyo, Miyamae, Yashio, Nagareyama, Tokyo, Kyoto, Yokohama, Minato, Osaka, Kita, Ashiya.
A major solar flare of X5.0 occurred at 21:50 UT - late on December 31, 2024. This flare
is the strongest since September, 2017 as described in a previous issue of this
summary as:
"It is likely that this flare will be followed in the next day by an SFE induced
earthquake and later by seismicity promoted by ionospheric reactions to
CME associated with this event. Areas most likely to see Solar Flare Effect (SFE)
are generally in the north-western Pacific plate boundary including
areas of Japan which saw an M 6.3 two days ago in the region of Hokkaido.
A strong to major earthquake is possible shortly in this region. Later enhanced
seismicity should be concentrated about 10 degrees north or south of the
geomagnetic equator and at high latitudes under ionospheric ring currents." (January 1, 2024)
No other events have hit within about 250 km of this epicenter in western
Honshu in the past 35 years. The last earthquake within this area of M>=7.5 appears
to have been an M 7.7 on November 26, 1614 and prior to that an M 7.8 on January 17, 1586; and possibly an M 8.3 in mid-December, 1096.
An earthquake of M 7.5 also occurred about 250 km northeast of today's epicenter
on June 16, 1964 and before that about 300 km southeast of today's epicenter
in Tokyo on September 1, 1923 with M 8.3." (January 1, 2024)
Likewise an event of M 6.2 hit near today's epicenter on May 5, 2023. At the time
this summary noted:
"A strong earthquake of M 6.2 occurred in western Japan today in the Ishikawa Prefecture.
No tsunami warning was issued and none was observed. No abnormalities were
reported at the Shika power plant or in the Kashiwazaki-Karina plant in Niigata Prefecture.
NEIC reported maximum intensity VIII in Suzu, Ishikawa and IV in Niigata and Ishikawa with II-III shaking in Nagano, Gifu, Tokyo, Saitama, Kawagawa and Aichi Prefectures. This earthquake occurred within about an hour of local solar noon and wsa
probably promoted by high tidal stresses with today's full moon and lunar
eclipse which maximize near this hour as previous reported in this summary" (May 5, 2023)
Today's earthquake in Honshu had been anticipated in this summary in the issue
of November 24, 2024 as:
"The strongest earthquake in the world today was an M 5.9 in Fiji near Levuka. It was not reported felt in this remote area.
This earthquake occurred at the start of solar flare 840 (SWPC) and was
probably promoted by SFE associated with that flare. A number of other
solar flares today were also associated with unusual earthquakes including those in
the Gulf of Californa (M 3.6); Kyrgyzstan (M 5.4); northern California M 2.1); .
and Honshu, Japan (M 5.1). Watch for more triggering like this in the next
several days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
870 2305 2310 2315 C5.3 (November 23, 2024) 2.9E-03
Honshu M 5.1 23:22 UT
NEIC reported this earthquake of M 5.1 in Northern Honshu, Japan was felt with intensity up to II-III in the area(s) of Northern Honshu, Japan at Iwate and Misawa, Aomori.
It occurred towards the end of solar flare 870 (C5.3) and was probably promoted
by SFE from that flare (see above)" (November 24, 2024)
The new moon will arrive on December 1, 2024 at 06:21 UT. Longitudes which are at local solar midnight at this time are near 100 West while those at local solar noon are near 80 East. These include, in the west areas of Central U.S. and central Mexico and portions of the East Pacific Rise and in the east in China, Pakistan and India in central Asia and in the South Indian Ocean. These are the regions most likely to see tidal triggering at this time and during the next week. Other areas can also be promoted by tidal stresses. These are most likely to occur near local solar noon and midnight.
Likewise forecasts 167577 and 167655 had expected moderate to strong seismic enhancement
in this area was likel at the end of November:
O: 26NOV2024 13:47:03 37.0N 136.4E ML=6.1 NEIC Central Honshu, Japan
P: 21NOV2024 167577 35.0N 141.0E 3.0-5.0 BBCAA Central/So. Honshu, Japan
P: 26NOV2024 167655 41.0N 136.0E 3.5-5.4 ACAAA Sea of Japan
An earthquake of M 4.9-5.3 in North Island near Stratford, New Zealand followed
an hour after the M 6.1-6.4 in Japan. It may have been triggered by body waves
from the Japanese event. The last earthquake within about 150 km of of this
event in New Zealand with magnitude equal or larger than M 5.3 was recorded
by NEIC to have occurred on November 30, 2022 about 150 km northeast of
today's epicenter with M 5.4 and M 5.7 on January 12, 2022. Most moderate earthquakes
in this area (including today's at 196 km depth) are of intermediate focus (90-225 km depth) and are lightly felt on the surface. GEONET reported this event with M 5.3 southwest of Taumarunui
was felt and forecast in forecast 167737 within about 10 km of the epicenter as:
O: 26NOV2024 14:46:49 39.0S 174.9E MS=5.3 GEONET Felt with moderate intensity in the area of western North Island, New Zealand near Stratford with moderate shaking felt by 1520 people in southern North Island. Nearly 1520 people reported feeling this earthquake with 940 with weak intensity, 525 light, 54 moderate, 1 strong, 0 severe and 0 extreme.
P: 28NOV2024 167737 39.0N 175.0E 3.0-4.6 AAAAA North Island, N.Z.
Both the earthquakes in Japan and in New Zealand followed shortly after a moderate
solar flare (SWPC #1760) the second strongest of the day which occurred while the
these epicenters were near local solar midnight when SFE is maximized - initially listed by SWPC as:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1760 1232 1239 1243 C7.3 (November 26, 2024) 3.2E-03
Honshu M 6.1 13:47 UT
Samar M 4.4, 4.3 12:57, 13:01 UT
Coquimbo M 5.1 12:33 UT
New Zealand M 5.3 14:46 UT
The strongest earthquake in the U.S. or Canada today was an M 3.7-4.0 in Mammoth Lakes, California (or two of M 3.7). NEIC reported these were felt with intensity up to IV in the Mammoth Lakes region.
This event occurred near local solar midnight and may have been promoted by strong solar or tidal stresses which have maximum influence on seismicity near this hour.
While an M 3.8 was felt in the region of Mammoth Lakes on November 14, 2022, the last
event of M>=4.0 occurred on April 5, 2020. This event occurred near local solar
midnight and may have been promoted by strong solar or tidal stresses which
have maximum influence on seismicity near this hour. At the time this summary noted:
"An unusually large M 3.8 earthquake occurred today in the Mammoth Lakes aea of Central California today. NEIC reported intensity III in Ludlow, Bishop and Mariposa and II in Hawthorne, Mammoth Lakes, Auberry and North Fork, California." (November 15, 2024)
and
"The strongest earthquake in the U.S. or Canada today was an M 4.4 in the Mammoth Lakes, California area. NEIC reported intensity III-IV in Mammth Lakes and northeast Fresno County and II-III within about 100 km at June Lake, Benton, Bishop, Shaver Lake, Oakhurst, Bass Lake and Yosemite.
This may be related to the strong nor'easter which was simultaneous with the
M 4.9 in Southern California yesterday. A pair of light earthquakes were also
felt in the San Francisco area today with M 2.4 and 2.7. California may be heading into a period
of high seismicity which generally lasts from mid-April to early May and can
include moderate to strong quakes near the coast. Researchers have suggested this seasonal pattern may be related to weather, percolation and rainfall. The largest event in this
period in the State was an M 8.3 in San Francisco in 1906. Weather was factor
in that event, although not a strong nor'easter, weather maps from this date show a strong low pressure system over the area with winds to the northeast, typical of a nor'easter. While details cannot be found
the strongest snowfall event in the northeastern U.S. occurred about a week before
the San Francisco earthquake - for example, measuring 15 inches on April 10 in Portland, Maine, the largest snowfall in April ever recorded. This was probably part of a regional nor'easter. More directly associated with
this northeastern U.S. weather event was an M 7.5, also on April 10, 1906 in the
Gulf of California - a direct precursor to the San Francisco quake. A felt foreshock
to that event occurred 10 hours after the Gulf of California event in San Francisco of unknown magnitude. Unusual local winds from the east
were blowing when the earthquake occurred. These strange winds were one of the
prime causes of the massive fire which followed the earthquake. A strong storm
dumped inches of snow in the Mammoth Lakes region today and may have helped
promote this unusual earthquake of M 4.4." (April 5, 2020)
Today's activity in California may also be related to a nor'easter moving into the northeastern
U.S. and expected to hit today or tomorrow. Such events near the Pacific-North American Plate boundary frequently as closely
associated and noted in this summary on many previous occasions.
NEIC reported this earthquake of M 2.7 in Central California was felt with intensity up to II in the area(s) of Central California in Arroyo Grande.
NEIC reported this earthquake of M 2.6 in Northern California was felt with intensity up to IV in the area(s) of Northern California at Calpine and Truckee.
NEIC reported this earthquake of M 5.1 in Coquimbo, Chile was felt with intensity up to IV in the area(s) of Coquimbo, Chile in Coquimbo, La Serena and III in Vicuna and Santiago.
EMSC reported moderate shaking in Coquimbo, Chile at Coquimbo, Tongoy and La Florida.
GUC reported this event with the following parameters and felt information:
26-11-2024 12:33 30.44 71.26 48 5.3 V Coquimbo at La Serens, Vicuna, Coquimbo, Paiguano, Monte Patria; IV in La Higuera, Ovalle, Salamanca, Andacollo, Punitaqui, Rio Hurtado and in Atacama with IV in Alto del Carmen, Vallenar and III in Copiapo, Tierra Amarilla, Freirina, Huasco, Chile.
This earthquake may have been promoted by SFE associated with a moderate solar flare
(#1760) as it occurred at the beginning of that flare. The M 6.1-6.4 in
Ishigawa, Japan about an hour later and a subsequent M 5.3 in New Zealand can also be associated with that flare.
Date for these events from NEIC and SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1760 1232 1239 1243 C7.3 (November 26, 2024) 3.2E-03
Honshu M 6.1 13:47 UT
Samar M 4.4, 4.3 12:57, 13:01 UT
Coquimbo M 5.1 12:33 UT
Oaxaca M 4.0 12:43 UT
New Zealand M 5.3 14:46 UT
EMSC reported this earthquake of M 4.2 in Eastern Turkey was felt with intensity up to IV in the area(s) of Eastern Turkey at Baris.
EMSC reported this earthquake of M 4.8 in Luzon, Philippines was felt with intensity up to IV in the area(s) of Luzon, Philippines at Baguio City.
GeoNet reported an earthquake in the Milford Sound area of South Island, New Zealand near local solar noon with the following parameters:
O: 26NOV2024 22:29:56 45.0S 167.4E MS=4.8 GEONET Felt with weak intensity in the area south of Milford Sound, South Island. 546 reports of felt intensity came from the area east and north of the epicenter including 368 with weak intensity; 171 light; 5 moderate; 2 strong; 0 severe and 0 extreme.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1540 0001 0008 0012 C7.3 (November 26, 2024) 6.0E-03
1610 0012 0023 0036 C9.4 (November 26, 2024) 1.5E-03
Guatemala M 4.7 23:57 UT
Peru M 4.3 00:21 UT
1600 0510 0517 0529 C3.5 (November 26, 2024) 3.8E-03
Coquimbo M 3.2 05:36 UT
Fiji M 4.3 05:31 UT
1730 1049 1057 1102 C5.5 (November 26, 2024) 2.7E-03
1760 1232 1239 1243 C7.3 (November 26, 2024) 3.2E-03
Honshu M 6.1 13:47 UT
Samar M 4.4, 4.3 12:57, 13:01 UT
Coquimbo M 4.1 12:33 UT
Oaxaca M 4.0 12:43 UT
1810 1605 1609 1614 C3.2 (November 26, 2024) 1.5E-03
Sulawesi M 4.1 16:15 UT
1870 1812 1820 1825 C4.3 (November 26, 2024) 3.2E-03
GEOMAGNETIC FIELD: quiet November 27 minor storms November 28 and major storms November 29. Solar M-flare chance: 65% X-class: 20% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 7 2 6 01:00 3 140 222
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
The new moon will arrive on December 1, 2024 at 06:21 UT. Longitudes which are at local solar midnight at this time are near 100 West while those at local solar noon are near 80 East. These include, in the west areas of Central U.S. and central Mexico and portions of the East Pacific Rise and in the east in China, Pakistan and India in central Asia and in the South Indian Ocean. These are the regions most likely to see tidal triggering at this time and during the next week. Other areas can also be promoted by tidal stresses. These are most likely to occur near local solar noon and midnight.
November 26, 2024
The Strongest earthquake in the U.S. or Canada today was an M 4.6 off the coast of Washington State. NEIC reported it was felt lightly in Victoria, British Columbia, Canada.
The last earthquake within about 150 km of this epicenter off the coast of Washington State occurred on August 19, 2012 with M 5.6. A series
of moderately strong to strong earthquakes - including an M 6.4 hit the region
about 150 km northwest of this in July 4-11, 2024. At the time this summary noted:
"Aftershocks of the M 5.5 off the coast of Washington State continued today.
The M 5.5 was the strongest event in North America today. The largest aftershock
was M 4.3-4.5 but at least 10 minor aftershocks were recorded. A similar earthquake
hit about 100 km northeast of this on February 4, 2012 with M 5.6. The last
earthquake in the area of larger magnitude occurred on September 14, 2001
with M 6.0. Forecast 68234 had expected a moderate earthquake in the area
around August 20. This earthquake occurred within a few minutes of midnight
local solar time (anti-solar). This suggest a geomagnetic link as flare
effects are most prominent at this time. Flare 9310 began at the same time
that this earthquake occurred and maximized at the time of the earthquake
in Arkansas. Both were likely promoted by solar flare effects from that
NEIC reported this earthquake of M 5.5 off the coast of Washington was felt with intensity II-III in the area(s) of
Washington at Federal Way, Enumclaw, Blaine, Oak Harbor, Graham, Vancouver
and Walla Walla and in Victoria, British Columbia, Canada. An aftershock
of M 4.5 was felt with intensity II in Sekiu and Olympia, Washington, Springfield,
Oregon and Victoria, B.C. Canada." (August 19, 2012)
and
"The strongest earthquake in the world today was an M 5.7 in the Vancouver, B.C., Canada region.
This event was reported felt in British Columbia near Vancouver Island with
intensity up to III in Tofino, Canada. It was accompanied by a strong series of moderate foreshocks and aftershocks
near local solar noon and may have been promoted by tidal stresses with
today's new moon as reported in previous issues of this summary" (July 4, 2024)
Today's event occurred within minutes of local solar midnight and may have been
promoted by tidal stresses and/or SFE from solar flares which maximize near this hour.
A solar flare of near X-class (M9.4) occurred and was in progress when this earthquake occurred.
SWPC reported this flare with the following parameters:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1270 0724 0742 0803 M9.4 (November 25, 2024) 1.3E-01
Coast of Washington M 4.6 08:24 UT
Pakistan M 4.3 07:42 UT
Today's M 4.3 in Pakistan was preceded by an M 3.8 foreshock. This events
occurred at the peak output of solar flare 900 as reported by SWPC. An M 5.0
occurred at the same time in the Easter Island area of the south Pacific.
NEIC reported this earthquake of M 2.6 in Southern California was felt with intensity up to II in the area(s) of Southern California in San Diego.
NEIC reported these earthquakes of M 3.2 and M 2.8 in Southern California were felt with intensity up to II in the area(s) of Southern California in Thermal.
NEIC reported this earthquake of M 4.5 in Almaty, Kazakhstan was felt with intensity up to IV in the area(s) of Almaty, Kazakhstan at Almaty, Taldikorgan and Tuyuk.
EMSC reported moderate shaking in Kazakhstan in Koktal, Zharkent, Pidzhim, Aydarly, Aqtam, Qogaly, Shonzha, Tekeli qala, Syrymbet, Qarabulaq, Shankhanay, Taldykorgan, Baqtybay, Shelek, Qoram, Baltabay, Almaty among others.
NEIC reported this earthquake of M 4.4 near Dogansehir, Turkey was felt with intensity up to I in the area(s) of near Dogansehir, Turkey.
NEIC reported this earthquake of M 4.8 in Samoa was felt with intensity up to II in the area(s) of Samoa in Siufaga, Savaii.
EMSC reported this earthquake of M 4.4 in Central Turkey was felt with intensity up to IV in the area(s) of Central Turkey at Yenikent, Karakavak, Tecde, Cilesiz, Cevatpasa, Asagi, Ozalper, Gazi, Zaviye, Merkez Beydagi, Inonu, Orduzu, Kizilcaoba, Adiyaman, Altinsehir, Yeni, Belkis, Firat, Guvenevler, Incili Pinar, Sarigulluk, Hisgorm Nuripazarbasi, Temmuz, Nisan, Atasehir, Seyrantepe, Ali Baba and Syria.
EMSC reported this earthquake of M 2.4 in San Francisco, California was felt with intensity up to IV in the area(s) of San Francisco, California at Richmond as a sharp quake jolt and in Berkeley.
EMSC reported this earthquake of M 4.2 in Northern Algeria was felt with intensity up to IV in the area(s) of Northern Algeria at Akbou, Melbou, Beni Maouche Bejaia.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1170 0005 0009 0013 C3.4 (November 25, 2024) 1.8E-03
1180 0017 0029 0040 C8.4 (November 25, 2024) 8.1E-03
1210 0139 0159 0211 M1.1 (November 25, 2024) 1.5E-02
1240 0322 0336 0352 C7.7 (November 25, 2024) 1.9E-03
Mindoro M 4.0 03:27 UT
1250 0439 0453 0459 M1.8 (November 25, 2024) 1.2E-02
No. Colombia M 4.6 04:51 UT
Xizang M 4.2 05:00 UT
1270 0724 0742 0803 M9.4 (November 25, 2024) 1.3E-01
Coast of Washington M 4.6 08:24 UT
Pakistan M 4.3 07:42 UT
1320 1040 1047 1057 C5.4 (November 25, 2024) 1.7E-03
San Francisco M 2.4 10:45 UT
New Guinea M 4.4 10:46 UT
1330 1201 1212 1217 M2.0 (November 25, 2024) 1.6E-03
Fiji M 4.6 12:13 UT
1370 1546 1559 1607 C5.8 (November 25, 2024) 2.0E-03
Argentina M 4.4 15:46 UT
1430 1607 1636 1658 M1.0 (November 25, 2024) 2.4E-03
1440 1658 1707 1716 M1.5 (November 25, 2024) 1.9E-03
Pakistan M 4.3 17:15 UT
Bass Strait, Australia M 2.8 17:12 UT
Honshu M 4.1 17:17 UT
Central Turkey M 4.4 17:20 UT
1380 1911 1916 1922 C5.2 (November 25, 2024) 2.0E-03
Talaud M 4.5 19:18 UT
1390 1958 2005 2014 C4.7 (November 25, 2024) 4.3E-03
Southern California M 3.0 21:14 UT
1450 2024 2054 2123 M1.9 (November 25, 2024) 4.7E-02
Oaxaca M 3.9 20:46 UT
Southern California M 2.7 21:09 UT; M 2.0 21:23 UT
GEOMAGNETIC FIELD: unsettled November 26 quiet November 27-28. Solar M-flare chance: 55% X-class: 15% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 11 17 9 11:00 5 140 220
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 25, 2024
The Strongest earthquake in the U.S. or Canada today was an M 4.6 off the coast of Washington State. NEIC reported it was felt lightly in Victoria, British Columbia, Canada.
The last earthquake within about 150 km of this epicenter off the coast of Washington State occurred on August 19, 2012 with M 5.6. A series
of moderately strong to strong earthquakes - including an M 6.4 hit the region
about 150 km northwest of this in July 4-11, 2024. At the time this summary noted:
"Aftershocks of the M 5.5 off the coast of Washington State continued today.
The M 5.5 was the strongest event in North America today. The largest aftershock
was M 4.3-4.5 but at least 10 minor aftershocks were recorded. A similar earthquake
hit about 100 km northeast of this on February 4, 2012 with M 5.6. The last
earthquake in the area of larger magnitude occurred on September 14, 2001
with M 6.0. Forecast 68234 had expected a moderate earthquake in the area
around August 20. This earthquake occurred within a few minutes of midnight
local solar time (anti-solar). This suggest a geomagnetic link as flare
effects are most prominent at this time. Flare 9310 began at the same time
that this earthquake occurred and maximized at the time of the earthquake
in Arkansas. Both were likely promoted by solar flare effects from that
NEIC reported this earthquake of M 5.5 off the coast of Washington was felt with intensity II-III in the area(s) of
Washington at Federal Way, Enumclaw, Blaine, Oak Harbor, Graham, Vancouver
and Walla Walla and in Victoria, British Columbia, Canada. An aftershock
of M 4.5 was felt with intensity II in Sekiu and Olympia, Washington, Springfield,
Oregon and Victoria, B.C. Canada." (August 19, 2012)
and
"The strongest earthquake in the world today was an M 5.7 in the Vancouver, B.C., Canada region.
This event was reported felt in British Columbia near Vancouver Island with
intensity up to III in Tofino, Canada. It was accompanied by a strong series of moderate foreshocks and aftershocks
near local solar noon and may have been promoted by tidal stresses with
today's new moon as reported in previous issues of this summary" (July 4, 2024)
Today's event occurred within minutes of local solar midnight and may have been
promoted by tidal stresses and/or SFE from solar flares which maximize near this hour.
A solar flare of near X-class (M9.4) occurred and was in progress when this earthquake occurred.
SWPC reported this flare with the following parameters:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0724 0742 0803 M9.4 (November 25, 2024) 1.3E-01
Coast of Washington M 4.6 08:24 UT
Pakistan M 4.3 07:42 UT
Today's M 4.3 in Pakistan was preceded by an M 3.8 foreshock. This events
occurred at the peak output of solar solar 900 as reported by SWPC. An M 5.0
occurred at the same time in the Easter Island area of the south Pacific.
900 0100 0108 0113 C7.6 (November 24, 2024) 4.5E-03
Easter Is. M 5.0 01:08 UT
Pakistan M 3.8 01:08 UT
Today's M9.4 flare is the strongest solar flare recorded since an X2.3 on November 6, 2024.
SWPC gave the following parameters for this event which was accompanied by
an M 5.9 in New Ireland less than an hour later.
6090 1324 1340 1346 X2.3 (November 6, 2024) 8.0E-02
New Ireland M 5.9 14:36 UT
An earthquake of M 4.3 also occurred in Pakistan at the maximum output of this
flare. This earthquake occurred within minutes of local solar noon and was
probably promoted by SFE associated with this flare. The last earthquake within
about 100 km of this epicenter in Pakistan with M>=4.3 was an M 4.4 on June 9, 2023.
An M 5.1 hit about 200 km northwest of this epicenter on August 20, 2024.
At the time this summary noted:
"A pair of unusual earthquakes shook the region of northern India near the Pakistan border today.
NEIC reported these earthquakes of M 5.1 and M 5.1 in Jammu and Kashmir, India was felt with intensity up to IV in the area(s) of Jammu and Kashmir, India at Baramula (VI), Uri (IV) and Srinagar (III).
EMSC reported two strong jolts in India at Spopore, Khawaja Bagh, Soyibug, Bachharura, Sora, Srinagar, Hafiz Bagh, Chadoora, and in areas of Pakistan." (August 20, 2024)
NEIC reported this earthquake of M 4.6 in Colombia was felt with intensity up to IV in the area(s) of Colombia in Piedecuesta, Santander.
NEIC reported this earthquake of M 3.3 in Southern Alaska was felt with intensity up to IV in the area(s) of Southern Alaska in Moose Pass; III in Anchorage, Fort Richardson, Indian, Chugiak, Eagle River, Girdwood, Palmer, and II at Elmendorf AFB, Wasilla.
EMSC reported moderate intensity in Alaska at Eagle River, Jber, Chugiak, Anchorage.
An unusual earthquake of M 5.0 also occurred today in the area of Malawi and Tanzania.
NEIC reported this earthquake of M 5.0 in Malawi was felt with intensity up to V in the area(s) of Malawi in Liuli Ruvuma, Tanzania.
Following are the SWPC parameters for flare 970 which was near maximum when
this earthquake in Malawa occurred:
970 0740 0753 0812 C5.5 (November 24, 2024) 8.2E-03
Malawi M 5.0 07:58 UT
No earthquakes of M>=5 have been recorded within about 150 km of today's epicenter
in Malawi in at least 35 years. The last within about 200 km of today's epicenter of this
magnitude or greater was an M 5.7-5.9 on December 6, 2009 and an aftershock of M 5.1 on December 31, 2014.
about 200 km northwest of today's epicenter. At the time this summary noted in this regard:
"An earthquake of M 5.8 hit in the region of Malawi in Africa today and
was followed by aftershocks of M 5.2, 5.1, 5.1 and 5.0. The mainshock was
reported by NEIC to have been felt with intensity III within about 150 km
of the epicenter at Mbeya, Tanzania and Mzuzu City, Malawi." (December 6, 2009)
NEIC reported this earthquake of M 3.7 in the Fox Islands, Alaska was felt with intensity up to II in the area(s) of the Fox Islands, Alaska.
NEIC reported these earthquakes of M 3.3 and M 3.4 in Oklahoma were felt with intensity up to IV in the area(s) of Oklahoma at Pond Creek and II in Medford, Hunter and in Springfield, Missouri.
EMSC reported this earthquake of M 4.2 in Northern Peru was felt with intensity up to IV in the area(s) of Northern Peru at Nuevo Chimbote.
EMSC reported this earthquake of M 4.2 in Antofagasta, Chile was felt with intensity up to IV in the area(s) of Antofagasta, Chile at Calama.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0724 0742 0803 M9.4 (November 25, 2024) 1.3E-01
Coast of Washington M 4.6 08:24 UT
Pakistan M 4.3 07:42 UT
890 0041 0052 0059 C5.4 (November 24, 2024) 4.6E-03
Ecuador M 4.0 00:56 UT
900 0100 0108 0113 C7.6 (November 24, 2024) 4.5E-03
Easter Is. M 5.0 01:08 UT
Pakistan M 3.8 01:08 UT
920 0327 0336 0343 C5.6 (November 24, 2024) 4.8E-03
Sumba M 4.4 03:43 UT
960 0623 0633 0640 C5.6 (November 24, 2024) 1.5E-03
970 0740 0753 0812 C5.5 (November 24, 2024) 8.2E-03
Malawi M 5.0 07:58 UT
1030 1304 1312 1317 C5.6 (November 24, 2024) 4.0E-03
1080 1621 1631 1639 C6.6 (November 24, 2024) 5.9E-03
Fox Is. M 3.7 16:43 UT
1110 2011 2022 2031 M1.1 (November 24, 2024) 8.4E-03
Oaxaca 3.9 20:10 UT
Oaxaca 4.4 20:13 UT
GEOMAGNETIC FIELD: quiet November 25-27. Solar M-flare chance: 55% X-class: 15% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 7 3 7 22:00 3 164 203
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 24, 2024
The strongest earthquake in the world today was an M 5.9 in Fiji near Levuka. It was not reported felt in this remote area.
This earthquake occurred at the start of solar flare 840 (SWPC) and was
probably promoted by SFE associated with that flare. A number of other
solar flares today were also associated with unusual earthquakes including those in
the Gulf of Californa (M 3.6); Kyrgyzstan (M 5.4); northern California M 2.1); .
and Honshu, Japan (M 5.1). Watch for more triggering like this in the next
several days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
720 0718 0724 0729 C2.3 (November 23, 2024) 1.5E-03
Gulf of California M 3.6 07:19 UT
740 0830 0837 0854 C3.9 (November 23, 2024) 4.7E-03
Kyrgyzstan M 5.4 08:33 UT
770 1325 1337 1344 C3.6 (November 23, 2024) 4.0E-03
No California M 2.1 13:26 UT
820 1749 1810 1834 M1.1 (November 23, 2024) 2.3E-02
Alaska Peninsula M 4.4 17:40 UT
840 1906 1920 1942 C5.4 (November 23, 2024) 1.1E-02
Fiji M 5.9 19:05 UT M 4.2 19:27 UT
Mindanao M 4.6 19:25 UT
No. Peru M 4.0 19:25 UT
870 2305 2310 2315 C5.3 (November 23, 2024) 2.9E-03
Honshu M 5.1 23:22 UT
NEIC reported this earthquake of M 5.1 in Northern Honshu, Japan was felt with intensity up to II-III in the area(s) of Northern Honshu, Japan at Iwate and Misawa, Aomori.
It occurred towards the end of solar flare 870 (C5.3) and was probably promoted
by SFE from that flarea (see above)
NEIC reported this earthquake of M 2.8 offshore Northern California was felt with intensity up to III in the area(s) of Northern California at Fort Bragg and Westport.
NEIC reported these earthquakes of M 2.8 in Baja California, Mexico were felt with intensity up to II-III in the area(s) of Baja California, Mexico at Puebla and Mexicali.
NEIC reported this earthquake of M 2.9 in Utah was felt with intensity up to II in the area(s) of Utah at Hyrum, Paradise.
NEIC reported this earthquake of M 3.5 off the coast of Oregon was felt with intensity up to I in the area(s) of Oregon at Coos Bay.
NEIC reported this earthquake of M 5.4 in Kyrgyzstan was felt with intensity up to II in the area(s) of Kyrgyzstan at Karakendzha Karotegin, Tajikistan.
EMSC reported it was felt with moderate shaking in Uzbekistan and Urtaowul, Tashkent, and in Kazakhstan at Shymkent, Almaty.
This event occurred at the beginning of Solar Flare 740 (SWPC) (C3.9) and was
probably promoted by SFE associated with that flare as it occurred within
about an hour of local solar noon, a prime time for SFE to affect seismicity.
NEIC reported this earthquake of M 4.1 in Romania was felt with intensity up to IV in the area(s) of Romania in Brasov, Bucharest, Vaslui, Iasi.
NEIC reported this earthquake of M 4.4 in Azerbaijan was felt with intensity up to IV in the area(s) of Azerbaijan in Kapan, Armenia and in Tblisi, Stepanaket, Artsakh, Georgia.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
670 0306 0320 0328 C7.0 (November 23, 2024) 5.9E-03
Mariana Is. M 4.3 03:25 UT
720 0718 0724 0729 C2.3 (November 23, 2024) 1.5E-03
Gulf of California M 3.6 07:19 UT
740 0830 0837 0854 C3.9 (November 23, 2024) 4.7E-03
Kyrgyzstan M 5.4 08:33 UT
750 1140 1147 1151 C3.1 (November 23, 2024) 1.6E-03
760 1300 1307 1325 C3.2 (November 23, 2024) 5.0E-03
Honshu M 3.6 13:01 UT
770 1325 1337 1344 C3.6 (November 23, 2024) 4.0E-03
No California M 2.1 13:26 UT
800 1554 1607 1621 M1.1 (November 23, 2024) 2.2E-03
Utah M 2.9 16:13 UT
820 1749 1810 1834 M1.1 (November 23, 2024) 2.3E-02
Alaska Peninsula M 4.4 17:40 UT
840 1906 1920 1942 C5.4 (November 23, 2024) 1.1E-02
Fiji M 5.9 19:05 UT M 4.2 19:27 UT
Mindanao M 4.6 19:25 UT
No. Peru M 4.0 19:25 UT
850 2132 2139 2143 C4.0 (November 23, 2024) 1.9E-03
Banda Sea M 4.4 21:43 UT
Mindanao M 4.4 21:47 UT
860 2247 2258 2302 C5.5 (November 23, 2024) 3.2E-03
Puerto Rico M 3.9 22:46 UT
Puerto Rico M 3.8 23:04 UT
870 2305 2310 2315 C5.3 (November 23, 2024) 2.9E-03
Honshu M 5.1 23:22 UT
Nayarit Mexico M 4.1 23:20 UT
GEOMAGNETIC FIELD: unsettled November 24-26. Solar M-flare chance: 60% X-class: 15% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 11 7 17:00 4 156 200
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 24, 2024
The strongest earthquake in the world today was an M 5.9 in Fiji near Levuka. It was not reported felt in this remote area.
This earthquake occurred at the start of solar flare 840 (SWPC) and was
probably promoted by SFE associated with that flare. A number of other
solar flares today were also associated with unusual earthquakes including those in
the Gulf of Californa (M 3.6); Kyrgyzstan (M 5.4); northern California M 2.1); .
and Honshu, Japan (M 5.1). Watch for more triggering like this in the next
several days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
720 0718 0724 0729 C2.3 (November 23, 2024) 1.5E-03
Gulf of California M 3.6 07:19 UT
740 0830 0837 0854 C3.9 (November 23, 2024) 4.7E-03
Kyrgyzstan M 5.4 08:33 UT
770 1325 1337 1344 C3.6 (November 23, 2024) 4.0E-03
No California M 2.1 13:26 UT
820 1749 1810 1834 M1.1 (November 23, 2024) 2.3E-02
Alaska Peninsula M 4.4 17:40 UT
840 1906 1920 1942 C5.4 (November 23, 2024) 1.1E-02
Fiji M 5.9 19:05 UT M 4.2 19:27 UT
Mindanao M 4.6 19:25 UT
No. Peru M 4.0 19:25 UT
870 2305 2310 2315 C5.3 (November 23, 2024) 2.9E-03
Honshu M 5.1 23:22 UT
NEIC reported this earthquake of M 5.1 in Northern Honshu, Japan was felt with intensity up to II-III in the area(s) of Northern Honshu, Japan at Iwate and Misawa, Aomori.
It occurred towards the end of solar flare 870 (C5.3) and was probably promoted
by SFE from that flarea (see above)
NEIC reported this earthquake of M 2.8 offshore Northern California was felt with intensity up to III in the area(s) of Northern California at Fort Bragg and Westport.
NEIC reported these earthquakes of M 2.8 in Baja California, Mexico were felt with intensity up to II-III in the area(s) of Baja California, Mexico at Puebla and Mexicali.
NEIC reported this earthquake of M 2.9 in Utah was felt with intensity up to II in the area(s) of Utah at Hyrum, Paradise.
NEIC reported this earthquake of M 3.5 off the coast of Oregon was felt with intensity up to I in the area(s) of Oregon at Coos Bay.
NEIC reported this earthquake of M 5.4 in Kyrgyzstan was felt with intensity up to II in the area(s) of Kyrgyzstan at Karakendzha Karotegin, Tajikistan.
EMSC reported it was felt with moderate shaking in Uzbekistan and Urtaowul, Tashkent, and in Kazakhstan at Shymkent, Almaty.
This event occurred at the beginning of Solar Flare 740 (SWPC) (C3.9) and was
probably promoted by SFE associated with that flare as it occurred within
about an hour of local solar noon, a prime time for SFE to affect seismicity.
NEIC reported this earthquake of M 4.1 in Romania was felt with intensity up to IV in the area(s) of Romania in Brasov, Bucharest, Vaslui, Iasi.
NEIC reported this earthquake of M 4.4 in Azerbaijan was felt with intensity up to IV in the area(s) of Azerbaijan in Kapan, Armenia and in Tblisi, Stepanaket, Artsakh, Georgia.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
670 0306 0320 0328 C7.0 (November 23, 2024) 5.9E-03
Mariana Is. M 4.3 03:25 UT
720 0718 0724 0729 C2.3 (November 23, 2024) 1.5E-03
Gulf of California M 3.6 07:19 UT
740 0830 0837 0854 C3.9 (November 23, 2024) 4.7E-03
Kyrgyzstan M 5.4 08:33 UT
750 1140 1147 1151 C3.1 (November 23, 2024) 1.6E-03
760 1300 1307 1325 C3.2 (November 23, 2024) 5.0E-03
Honshu M 3.6 13:01 UT
770 1325 1337 1344 C3.6 (November 23, 2024) 4.0E-03
No California M 2.1 13:26 UT
800 1554 1607 1621 M1.1 (November 23, 2024) 2.2E-03
Utah M 2.9 16:13 UT
820 1749 1810 1834 M1.1 (November 23, 2024) 2.3E-02
Alaska Peninsula M 4.4 17:40 UT
840 1906 1920 1942 C5.4 (November 23, 2024) 1.1E-02
Fiji M 5.9 19:05 UT M 4.2 19:27 UT
Mindanao M 4.6 19:25 UT
No. Peru M 4.0 19:25 UT
850 2132 2139 2143 C4.0 (November 23, 2024) 1.9E-03
Banda Sea M 4.4 21:43 UT
Mindanao M 4.4 21:47 UT
860 2247 2258 2302 C5.5 (November 23, 2024) 3.2E-03
Puerto Rico M 3.9 22:46 UT
Puerto Rico M 3.8 23:04 UT
870 2305 2310 2315 C5.3 (November 23, 2024) 2.9E-03
Honshu M 5.1 23:22 UT
Nayarit Mexico M 4.1 23:20 UT
GEOMAGNETIC FIELD: unsettled November 24-26. Solar M-flare chance: 60% X-class: 15% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 11 7 17:00 4 156 200
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 23, 2024
A moderate earthquake of M 3.8 was widely felt in the region of greater Los Angeles, California near Malibu today. This near-noontime event was reported by NEIC with maximum intensity IV in California at Pacific Palisades, Seal Beach and Ventura; III in Los Angeles, Beverly Hills, Culver City, Downey, El Segundo, Malibu, Manhattan Beach, Palos Verdes Peninsula, Topanga, Marina del Rey, Santa Monica, Harbor City, Lomita, Wilmington, Long Beach, Glendale, Agoura Hills, Calabasas, Caonga Park, West Hills, Encino, Newbury Park, Reseda, Thousand Oaks, Westlake Village, and in general within abouot 100 km of the epicenter in Southern California.
EMSC reported this earthquake at M 3.6 felt in teh area of Los Angeles with moderate intensity. The last earthquake
larger magnitude in this region of Los Angeles occurred as an M 4.7 on September 12, 2024.
Other earthquakes in this area this year occurred as an M 4.1 on January 1, 2024 and February 9, 2024 with M 4.6 and an M 4.4 on August 12, 2024.
This summary has previously noted enhanced seismicity in this region of Los Angeles
this year most recently on September 12, 2024 as:
"The strongest earthquake in the U.S. or Canada today was an M 4.7 in the region of Los Angeles, California.
NEIC received nearly 20,000 felt reports from residents of Southern California. These included reports of intensity V in Malibu, Agoura Hills, Westlake Village, Thousand Oaks, and IV in Calabasas, Oak Park, Newbury Park, West Hills, Woodland Hills, Camarillo, Canoga Park, Simi Valley, Winnetka, Tarzamna, Santa Monica, Moorpark, Santa Monica, Encino, Reseda, Northridge, Los Angeles, Sherman Oaks, Van Nuys, Somis, Marina del Rey, Beverly Hills, Studio City, Valley Village, North Hollywood, Universal City, Hermosa Beach among others. Intensity III was felt as far as 150 km from the epicenter in places such as San Bernardino and Camp Pendleton, California with II shaking as far as 600 km from the epicenter in Arizona, Nevada, Oregon and Colorado among others.
The last earthquake in the Los Angeles with M>=4.7 within about 100 km of today's
M 4.7 epicenter occurred as an M 5.1 on August 20, 2023 and prior to that an M 5.1 on
March 29, 2014 and M 4.7 on May 18, 2009, the last such event in the Simi Valley
near Los Angeles.
Light aftershocks, including an M 3.4 were felt with intensity up to IV in Southern California in Malibu, Agoura Hills, Westlake Village, Calabasas, Oak Park, Thousand Oaks, Newbury Park, Woodland Hills, Camarillo, Simi Valley, Northridge, Los Angeles and as far as 200 km from the epicenter in Ludlow and San Diego.
NEIC reported an earthquake of M 2.9 in Southern California was felt with intensity up to III in the area(s) of Southern California in Del Mar.
The last earthquake near today's epicenter with M>=4.5 was an M 4.6 on February 9, 2024.
At the time this summary noted:
"The moderate earthquake of M 4.6-4.7 was widely felt in the region of Los Angeles, California today. Press reports indicate it was felt by more than a million residents in
the area of western Los Angeles and the San Fernando Valley to Malibu, California with
maximum intensity up to V in Los Angeles. EMSC reported very strong shaking in
Los Angeles, California at Westlake Village, Agoura Hills, Thousand Oaks, Oak Park, Casa Conejo, Newbury Park, Calabasas, Moorpark, Camarillo, Simi Valley, Woodland Hills, Canoga Park, Winnetka, Chatsworth, Northridge, Reseda, Tarzana, Chatsworth and as far as Dana Point, Loma Linda, Hesperia, and in Winterhaven and Yuma, Arizona.
Many smaller aftershocks were felt in the same area. Minor damage was reported in Los Angeles. This included some minor damage
to structures and the temporary closure of regional theme parks such as
Disneyland rides.
This was the strongest earthquake in the Los Angeles, CA area since an M
5.1 on August 20, 2023 and an M 5.3 on April 5, 2018 and is near the epicenter
of the Northridge earthquake of M 6.7 of January 17, 1994 and the M 6.8 in
San Fernando Valley of February 9, 1971. Active seismicity in this region at this time
was first proposed in this summary following the M 6.3 earthquake in New Guinea
of December 31, 2023 as:
"The strongest earthquake of the day was an M 6.3 in the region of West Irian, New Guinea. NEIC reported it was felt with intensity up to VI in the epicentral area near Abepura, Indonesia.
...
Strong earthquakes in the region of Papua, Indonesia can precede enhanced seismicity in Southern California
by about a month at a distance of 103 degrees on the earth's surface. A typical
example was the M 8.1 in this area on January 10, 1971 followed by the M 6.7 San
Fernando earthquake in Los Angeles of February 9, 1971. A similar example
occurred in October, 1979 when the Superstition Hills quake in southern
California followed a major quake in this area of New Guinea." (December 31, 2023, September 12, 2024)
EMSC reported a regional foreshock of M 2.2 in eastern Los Angeles several hours earlier was felt with moderate sound an intensityin Fontana and Rancho Cucamonga, California.
Today's M 3.8 in Los Angeles occurred near local solar noon and at the height
of solar flares 610 (C3.9) and 640 (M1.0) with data listed below from SWPC and
may have been triggered by SFE from those flares which occurred within minutes of
local solar noon. This coincidence suggests the area is under considerable
triggerable strain and a larger magnitude solar flare near local solar midnight
or noon could trigger a stronger regional earthquake.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
610 2106 2116 2126 C3.9 (November 22, 2024) 5.0E-03
640 2126 2215 2233 M1.0 (November 22, 2024) 3.1E-02
Los Angeles M 3.8 22:15 UT
In previous recent updates to this summary, including the last issue, this
report noted enhanced seismicity in the Los Angeles area at this time as:
"A series of light earthquakes including an M 3.4 and 3.8 occurred today in the greater Los Angeles, California region. NEIC reported intensity IVin California at Los Alamitos, Rancho Cucamonga, Fontana and III in Los Angeles, Torrance, Long Beach, Pasadena, Rowland Heights, Ontario, Chula Vista, Grand Terrace, Rialto, San Bernardino, Riverside, Sun City, Anaheim among others." (November 17, 2024)
and
"An unusual light earthquake of M 2.8 occurred today in the U.S. and was felt
in Nebraska near Houston and Harvard, Nebraska with intensity up to III.
Light seismicity in this area often precedes strongly enhanced seismicity along the Pacific-North American plate boundary
by hours to days. Increased seismicity along this boundary may be anticipated
in the next several days including a slight possibility of a moderate to large
regional event." (November 22, 2024)
NEIC reported these earthquakes of M 3.1 and M 3.2 in Hawaii were felt with intensity up to II in the area(s) of Hawaii in Kamuela and Laupahoehoe.
NEIC reported these earthquakes of M 4.9, 4.3, 4.0 in Taiwan were felt with intensity up to IV in the area(s) of Taiwann Tainan, III in Hualien, Taichung, Taipei among others.
EMSC reported it at M 4.9 with an immediate M 4.6 aftershock were felt with moderat intensity in Taiwan at Taibao, Banqiao, and Taipei.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
430 0323 0344 0409 C9.0 (November 22, 2024) 1.9E-02
Mindanao M 4.6 03:44 UT
520 0514 0543 0613 C3.0 (November 22, 2024) 9.7E-03
Taiwan M 4.5 05:43 UT
500 0805 0813 0824 C3.2 (November 22, 2024) 3.5E-03
Molucca Sea M 4.5 08:42 UT
530 1542 1546 1551 M1.6 (November 22, 2024) 5.6E-03
Seattle M 2.2 15:38 UT
560 1655 1707 1715 C4.1 (November 22, 2024) 5.4E-03
570 1748 1757 1800 C2.8 (November 22, 2024) 2.2E-03
580 1817 1826 1830 C5.0 (November 22, 2024) 2.8E-03
590 1951 1956 2005 C4.8 (November 22, 2024) 3.5E-03
610 2106 2116 2126 C3.9 (November 22, 2024) 5.0E-03
640 2126 2215 2233 M1.0 (November 22, 2024) 3.1E-02
Los Angeles M 3.8 22:15 UT
Sulawesi M 4.3 21:59 UT
GEOMAGNETIC FIELD: unsettled November 23-25. Solar M-flare chance: 60% X-class: 15% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 12 19 10 17:00 5 148 179
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 22, 2024
An unusual light earthquake of M 2.8 occurred today in the U.S. and was felt
in Nebraska near Houston and Harvard, Nebraska with intensity up to III.
Light seismicity in this area often precedes strongly enhanced seismicity along the Pacific-North American plate boundary
by hours to days. Increased seismicity along this boundary may be anticipated
in the next several days including a slight possibility of a moderate to large
regional event.
NEIC reported this earthquake of M 2.6 in Central California was felt with intensity up to I in the area(s) of Central California in Lancaster.
NEIC reported these earthquakes of M 3.0 and M 3.2 off the coast of Oregon were felt with intensity up to I in the area(s) of Oregon in Coos Bay and Rockaway Beach.
NEIC reported this earthquake of M 2.9 in Arizona was felt with intensity up to IOO in the area(s) of Arizona in Utah at Knab and Orderville.
NEIC reported this earthquake of M 4.7 in Guam was felt with intensity up to II-III in the area(s) of Guam at Tamuning, Dededo and Merizo.
EMSC reported this event was lightly felt in Mangilao, Guam.
The eruption of volcanism in Iceland continued today after beginning on November 20, 2024. This is the 10th eruption
in Southern Iceland near Reykjavik in the Reykjanes Peninsula in the past 3 years and is likely to continue off and on
for some time. Internet photos of the current eruption are available online.
The current eruption lies near the town of Grindavik with nearly 4000 residents and caused
the evacuation of people from 50 homes and the Blue Lagoon resort.
NEIC reported this earthquake of M in was felt with intensity up to IV in the area(s) of
The full moon arrived at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-22 00:00 UT 22.1S 54.4E 045 kts South Indian Ocean A
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 45 kts. It is expected to track to the WSW over the next day and to dissipate.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
390 0552 0606 0623 C2.9 (November 21, 2024) 5.4E-03
360 1245 1307 1324 C3.4 (November 21, 2024) 8.0E-03
370 1324 1352 1415 C5.4 (November 21, 2024) 1.3E-02
Argentiona M 4.3 13:29 UT
Michoacan M 4.0 13:39 UT
Yellowstone M 2.1 13:40 UT
380 1450 1457 1510 C4.7 (November 21, 2024) 5.1E-03
Fiji M 4.6 15:18 UT
400 1752 1807 1828 C5.9 (November 21, 2024) 1.0E-02
Arizona M 2.9 17:46 UT
GEOMAGNETIC FIELD: unsettled November 22-24. Solar M-flare chance: 50% X-class: 10% proton storm: 99%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 7 5 10:00 3 148 166
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 21, 2024
It was another relatively quiet day in global seismicity today. No strong or strongly felt
earthquakes were recorded. The strongest earthquake in the world today was an M 5.7 in the Greenland Sea. It was not reported felt in this remote area.
This is the largest earthquake in the Greenland Sea within about 250 km of this
epicenter since an M 6.5 on March 6, 2009 and an M 6.2 on March 21, 1998. At the
time of the 2009 event this summary noted:
"The strongest earthquake of the day was an M 6.5 north of Norway in the
Greenland Sea and Svalbard region of the Arctic Ocean. Two foreshocks
which we noted in this report yesterday occurred with M 5.1 and 5.5. These
events are occurring at a distance of 90-92 degrees from the Talaud mainshock,
an n4 distance at which triggering effects from large earthquakes are expected.
This is the strongest earthquake ever recorded in this part of the world
according to NRK. There were no reports of damage from this remote
region. The earthquake comes one year after the last record tremor
in the region. On February 21, 2008 a quake measuring 6.0 occurred off the coast
of Svalbard according to the Norway Post." (March 6, 2009)
Today's event occurred near local solar noon and may have been promoted by strong
tidal stresses which maximize near this hour.
A moderate earthquake of M 5.5 also occurred today in Tonga/Fiji. NEIC reported it was felt in Tongatapu, Tonga at Tofoa-Koloua and Nuku'alofa.
Unusual light earthquakes occurred today in the U.S. and were felt in Massachusetts (M about 2.3)
near Worchester, MA and in Nebraska near Houston (M 2.8). Light seismicity in these areas often
precedes strongly enhanced seismicity along the Pacific-North American plate boundary
by hours to days. Increased seismicity along this boundary may be anticipated
in the next several days including a slight possibility of a moderate to large
regional event.
NEIC reported this earthquake of M 4.9 in Southern Iran was felt with intensity up to II-III in the area(s) of Southern Iran in Borazjan at Berazjan and in Hafar Al-Batin as-Sarqiyah, Saudi Arabia.
NEIC reported this earthquake of M 4.8 in Panama was felt with intensity up to III in the area(s) of Panama in Chiriqui at Boquete and Finca Blanco.
EMSC reported it was a moderate in Cucuy at Puerto Armuelles and Alto Boquete, Panama.
NEIC reported this earthquake of M 4.3 in Guerrero, Mexico was felt with intensity up to II in the area(s) of Guerrero, Mexico at Tlalnepantla, Mexico.
NEIC reported this earthquake of M 2.5 in Central California was felt with intensity up to II-III in the area(s) of Central California ini Salinas and Watsonville.
NEIC reported this earthquake of M 4.9 in Honshu, Japan was felt with intensity up to IV in the area(s) of Honshu, Japan in Aomori at Hirosaki and Misawa.
EMSC reported this earthquake of M 4.6 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar at Yangon, Dagon Myothit.
The full moon arrived at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-21 00:00 UT 21.1S 57.4E 045 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 45 kts. It is expected to track to the WSW over the next day and to dissipate.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
210 0305 0311 0315 C3.2 (November 20, 2024) 1.5E-03
El Salvador M 3.7 03:05 UT
220 0352 0358 0402 C2.7 (November 20, 2024) 1.2E-03
E. of South Sandwich Islands M 5.0 04:03 UT
230 0527 0530 0534 C4.2 (November 20, 2024) 1.3E-03
Central Peru M 4.0 05:26 UT
250 0629 0632 0636 C3.5 (November 20, 2024) 1.3E-03
Hokkaido M 4.9 06:40 UT
Wyoming M 2.7 06:30 UT
280 1219 1226 1230 C3.7 (November 20, 2024) 1.6E-03
300 1528 1536 1548 C2.4 (November 20, 2024) 1.8E-03
320 1746 1752 1756 C2.4 (November 20, 2024) 1.3E-03
330 1911 1948 2044 M1.1 (November 20, 2024) 4.9E-02
Catanduanes, Philippines M 4.8 19:30 UT
Papua M 4.0 M 4.0 19:29 UT
GEOMAGNETIC FIELD: quiet November 21-22 unsettled November 23. Solar M-flare chance: 50% X-class: 10% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 11 8 10:00 4 113 163
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85
November 20, 2024
An earthquake of M 2.7 occurred near San Francisco, California today. NEIC reported it was felt with intensity III in Central California at Santa Clara, San Jose, Sunnyvale, Oakland, and San Francisco.
This earthquake occurred within minutes of local solar noon and may have been promoted by tidal stresses which maximize near this hour.
NEIC reported this earthquake of M 4.9 in Aomori, Japan was felt with intensity up to II-III in the area(s) of Aomori, Japan in Hirosaki and Misawa.
NEIC reported these earthquakes of M 2.6 in Southern California were felt with intensity up to III in the area(s) of Southern California at Holtville.
NEIC reported this earthquake of M 5.0 in Honshu, Japan was felt with intensity up to IV in the area(s) of Honshu, Japan in Kanagawa, Tochigi and Tokyo Prefectures.
EMSC reported slight rocking in Kawasaki and Bunkyo Ku but not felt in Suruga, Japan.
NEIC reported this earthquake of M 4.0 in Bio Bio, Chile was felt with intensity up to IV in the area(s) of Bio Bio, Chile at Talcahuano.
19-11-2024 18:06 38.00 73.17 68 4.6 IV La Araucania at Puren, III in Angol and Los Sauces and in Nuble with III in Yungay, Chile.
NEIC reported this earthquake of M 5.0 in Mindanao, Philippines was felt with intensity up to IV in the area(s) of Mindanao, Philippines at Buayan Southern Mindanao.
EMSC reported moderate shaking in the Philippines at General Santos City, Digos City, Davao City.
PHIVOLCS reported intensity III in Don Marcelino, Davao Occidental; Malungon and Alabel, Sarangani and II in Jose Abad Santos, Davao Occidental; City of General Santos; Tupi, South Cotabato; Kiamba and Malapatan, Sarangani; Matanao, Davao del Sur, Governor Generoso, Davao Oriental.
The full moon arrived at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-20 00:00 UT 18.1N 112.1E 035 kts W of Northern Philippines
Typhoon Man-yi (TD 25W) continued today in the area off western Philippines, with winds up to 35 kts where it made landfall with loss of life, torrential rains and winds and flooding. It is likely to track to the west dissipating by November 21. Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17.
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-20 00:00 UT 19.1S 62.5E 055 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 55 kts. It is expected to track to the WSW over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 19N 118W south of Baja, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
9940 0244 0247 0253 C2.4 (November 19, 2024) 1.1E-03
Tonga M 5.6 02:42 UT
9950 0344 0353 0357 C2.7 (November 19, 2024) 1.8E-03
60 1527 1535 1543 C3.0 (November 19, 2024) 2.4E-03
70 1559 1602 1606 C3.1 (November 19, 2024) 1.8E-03
Iceland M 2.9 16:04 UT
100 1649 1656 1659 C4.0 (November 19, 2024) 1.5E-03
So. California M 2.3 16:54 UT
Fiji M 4.4 16:53 UT
110 1659 1728 1732 C9.0 (November 19, 2024) 1.0E-02
Xinjiang M 4.4 17:08 UT
120 1830 1834 1838 C7.9 (November 19, 2024) 2.0E-03
Honshu M 5.0 18:36 UT
130 2112 2128 2145 C7.0 (November 19, 2024) 9.0E-03
So. Sumatra M 4.3 21:29 UT
140 2227 2240 2255 C3.1 (November 19, 2024) 4.4E-03
Chiapas M 4.2 22:27 UT
So. California M 2.1 22:34 UT
Kyrgyzstan M 4.3 22:53 UT
GEOMAGNETIC FIELD: quiet November 20-22. Solar M-flare chance: 50% X-class: 10% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 21 6 15:00 6 109 157
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 19, 2024
It was a very quiet day in global seismicity today. The strongest earthquakes
today were slightly larger than M 5.0. This quiet period may not last long however. A strong
increase in solar activity did occur today including a number of solar flares of M-class,
many of which were closely associated with some of the largest earthquakes of the day
including M 5.2 in Northern Philippines and M 5.1 in the Mariana Islands, an M 5.0
in the southeast Indian Ridge; an M 4.9 in the Macquarie Islands; and events of M 4.7 in
the Santa Cruz Islands and northern Philippines. Stronger solar flares of X-class at this
time could trigger a major earthquake at a sub-solar location. The last major earthquake in the
world occurred nearly three months ago in Tonga in late August, 2024 - a very
long period between global major earthquakes.
NEIC reported this earthquake of M 4.6 in Southern Peru was felt with intensity up to III in the area(s) of Southern Peru in Quilca.
EMSC reported moderate to strong shaking in Arequipa, Peru.
The full moon arrived at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-19 00:00 UT 18.5N 114.0E 050 kts W of Northern Philippines
Typhoon Man-yi (TD 25W) continued today in the area off western Philippines, with winds up to 50 kts where it made landfall with loss of life, torrential rains and winds and flooding. It is likely to track to the west dissipating by November 21. Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17.
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-19 00:00 UT 17.6S 68.5E 090 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 90 kts. It is expected to track to the WSW over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
9490 0105 0114 0118 C3.2 (November 18, 2024) 1.6E-03
Chiapas M 4.2 01:14, 01:17 UT
9510 0152 0155 0200 C1.5 (November 18, 2024) 7.9E-04
9520 0201 0207 0211 C4.5 (November 18, 2024) 8.6E-04
Mariana Is. M 5.1 02:18 UT
9530 0224 0232 0236 C3.1 (November 18, 2024) 1.4E-03
9550 0327 0335 0339 C1.8 (November 18, 2024) 1.1E-03
Vancouver M 3.7 03:31 UT
Northern Philippines M 5.2 03:35 UT
Chiapas M 4.2 03:45 UT
9560 0400 0409 0420 C2.3 (November 18, 2024) 9.6E-04
9570 0444 0453 0500 C3.8 (November 18, 2024) 7.4E-04
Bolivia M 4.4 05:06 UT
Southwest Indian Ridge M 5.0 04:57 UT
Fox Is. M 3.8 04:57 UT
9580 0513 0522 0527 M1.0 (November 18, 2024) 8.0E-04
Channel Islands, CA, M 2.0 05:20 UT
Macquarie Is. M 4.9 05:24 UT
9590 0551 0559 0603 C2.8 (November 18, 2024) 1.6E-03
Xinjiang M 4.7 06:06 UT
9610 0651 0659 0704 C2.9 (November 18, 2024) 9.7E-04
Xizang M 4.7 07:02 UT
Xizang M 4.5 07:06 UT
9620 0713 0720 0725 C3.7 (November 18, 2024) 2.7E-03
9710 0725 0732 0736 M1.7 (November 18, 2024) 6.4E-03
Volcano Is. M 4.6 07:25 UT
9630 0754 0757 0801 M1.2 (November 18, 2024) 3.3E-03
9670 1023 1030 1034 C2.2 (November 18, 2024) 1.2E-03
9680 1041 1058 1102 M2.5 (November 18, 2024) 8.9E-03
9730 1106 1112 1119 M1.6 (November 18, 2024) 5.0E-03
9770 1119 1127 1144 M1.5 (November 18, 2024) 2.3E-02
Mindanao M 4.0 11:30 UT
9750 1242 1253 1257 M3.7 (November 18, 2024) 1.6E-02
So. Peru M 4.6 13:04 UT
Chiapas M 4.1 13:04 UT
Kermadec M 3.8 13:06 UT
Central California M 2.3 13:04 UT
Chiapas M 4.3 12:41 UT
9760 1524 1539 1546 C4.3 (November 18, 2024) 4.0E-03
9800 1658 1706 1710 C5.5 (November 18, 2024) 1.9E-03
Nicaragua M 4.0 17:10 UT
9820 1743 1749 1754 M1.8 (November 18, 2024) 2.1E-03
9830 1759 1804 1808 C6.6 (November 18, 2024) 3.0E-03
Santa Cruz Is. M 4.7 17:59 UT
Banda Sea M 4.0 M 4.0 18:06 UT
9890 2042 2045 2054 C6.8 (November 18, 2024) 5.2E-03
Northern Philippines M 4.7 20:50 UT
Mongolia M 4.3 20:54 UT
New Guinea M 4.3 21:02 UT
9900 2224 2230 2237 C4.3 (November 18, 2024) 2.9E-03
Java M 4.4 22:37 UT
9930 2350 //// 0004 M1.1 (November 18, 2024) 4.8E-03
Argentina M 3.4 23:52 UT
Costa Rica M 3.4 23:52 UT
GEOMAGNETIC FIELD: unsettled November 19, quiet November 20-21. Solar M-flare chance: 50% X-class: 10% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 4 2 3 15:00 2 117 165
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 18, 2024
The strongest earthquake in the world today was an M 6.1 in the Ryukyu Islands, Japan. NEIC reported it was felt with intensity II-III in Kagoshima, Miyazaki and possibly ast far as Nagano Prefectures, Japan.
The last earthquake within about 200 km of today's epicenter in the Ryukyu Islands
of M 6.1 occurred on June 13, 2020 as an M 6.6. At the time this summary noted in this regard:
"The event of M 6.7-6.8 in the Ryukyu Islands, Japan was preceded by an M 5.4-6.0 in the area of Taiwan. NEIC reported it was felt with maximum intensity IV in Taipei and II-III in Keelung, Taoyuan, Hsinchu, Taitung, Changhua and Tainan, Taiwan.
CWB reported this earthquake was felt with intensity III in Hualien, Yilan, Nantou, Hsinchu, Yunlin, Chiayi, II in Taipei, Taoyuan, Keelung City, Taichung, Miaoli, Changhua, Kaohsiung, Tainan and I in Pingtung and Penghu, Taiwan.
The local network CWB gave M 6.0 for this event and this is the preferred magnitude
having been determined from local data. The last event in Taiwan within about
200 km of this epicenter with M>=6 occurred on April 18, 2019 (M 6.1) and prior
to that as an M 6.4 on February 6, 2018." (June 13, 2020)
This earthquake was probably promoted by the passage of Typhoon Usagi over the
past two days as noted in previous issues of this summary:
"Typhoon Usagi (27W) continued today in the area of the northern Philippine Islands with winds up to 140 kts as a major typhoon and is likely to track to the north for the next several days, Enhanced seismicity is expected in the region of the central and northern Philippines and eventually in Taiwan (around November 16) and the Ryukyu Islands, Japan as this storm is in the area." (November 14-15, 2024)
A moderate earthquake of M 5.2 also occurred in the northern Philippines today. NEIC reported it was felt with intensity III in Basco Cagayan Valley, Philippines.
PHIVOLCS reported this earthquake was felt with intensity III in Northern Philippines in Basco and Mahatao, Batanes and II in Ivana, Uyugan, Sabtang and Itbayat, Batanes.
This earthquake occurred as a very strong Typhoon (Man-yi) was passing through the region. Stresses associated with this typhoon probably helped promote this earthquake as suggested in previous issues of this summary:
"Typhoon Man-yi (TD 25W) continued today in the area of Luzon, Philippines with winds up to 160 kts where it made landfall with loss of life, torrential rains and winds and flooding. It is likely to track to the west dissipating by November 21. Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17." (November 16-17, 2024)
The series of light earthquakes in southern Texas also continued today with event of M 2.7 recorded near Pleasanton, Texas.
This summary noted this in previous issues - for example in the previous summary:
"NEIC reported continuing earthquakes of M 3.5 in Southern Texas following a series in the area on November 16, 2024. These were felt with intensity up to V in the area(s) of Southern Texas at Pleasanton and II-III in Floresvile, Poteet, Poth and Cibolo." (November 17, 2024)
Likewise light earthquakes also continued in eastern Los Angeles, California today. These include an M 2.8 felt in Southern California with intensity up to III in Monrovia, Rancho Cucamonga, Ontario, Colton, Fontana, and San Bernardino. This series was noted in the previous summary as:
EMSC reported strong shaking at Rancho Cucamonga, California.
"A series of light earthquakes including an M 3.4 and 3.8 occurred today in the greater Los Angeles, California region. NEIC reported intensity IV in California at Los Alamitos, Rancho Cucamonga, Fontana and III in Los Angeles, Torrance, Long Beach, Pasadena, Rowland Heights, Ontario, Chula Vista, Grand Terrace, Rialto, San Bernardino, Riverside, Sun City, Anaheim among others." (November 17, 2024)
NEIC reported this earthquake of M 2.5 in the Geysers, Northern California may have been felt with intensity up to II in the area(s) of the Geysers, Northern California in San Francisco.
NEIC reported this earthquake of M 4.4 in Afghanistan was felt with intensity up to IV in the area(s) of Afghanistan in Emam Saheb, Kunduz.
NEIC reported this earthquake of M 5.2 in New Guinea was felt with intensity up to III in the area(s) of New Guinea in Kokopo.
NEIC reported this earthquake of M 2.0 in the Channel Islands, California was felt with intensity up to II in the area(s) of the Channel Islands, California in Camarillo (felt and heard).
O: 17NOV2024 10:43:52 44.3S 167.9E MS=4.3 GEONET Felt with weak intensity in the area southwest of Haast, South Island. 9 reports of felt intensity came from the area east and north of the epicenter including 7 with weak intensity; 2 light; 0 moderate; 0 strong; 0 severe and 0 extreme.
O: 18NOV2024 06:55:54 47.6S 166.2E ML=4.1 GEONET Felt weakly by 0 and lightly by 0 respondent in Southern South Island and in Snares Island, New Zealand.
The full moon arrived at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-18 00:00 UT 18.5N 115.2E 065 kts W of Northern Philippines
Typhoon Man-yi (TD 25W) continued today in the area off Northern Philippines, Philippines with winds up to 65 kts where it made landfall with loss of life, torrential rains and winds and flooding. An earthquake of M 5.2 in northern Philippines accompanied this storm today. It is likely to track to the west dissipating by November 21. Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17.
TROPICAL STORM SARA (19)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SARA 2024-11-18 00:00 UT 16.8N 87.8W 40 kts Northern Guatemala
Tropical Storm Sara (19) continued today in the area of northern Guatemala and Honduras with winds up to 40 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region. It is now expected to hit Chiapas Mexico and to dissipate in the next two days over Mexico and Guatemala. Strong rainfall is expected this week as remnants of Sara move north into Florida and SE U.S..
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-18 00:00 UT 17.6S 69.5E 090 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 90 kts. It is expected to track to the WSW over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
9230 0446 0455 0509 C1.7 (November 17, 2024) 2.3E-03
9290 1038 1059 1132 C5.3 (November 17, 2024) 1.1E-03
South Island M 4.2 10:43 UT
Los Angeles M 2.1 10:41 UT
Utah M 2.2 11:1 UT
9300 1132 1137 1142 C4.5 (November 17, 2024) 2.6E-03
Ryukyu Islands M 6.1 12:16 UT
Southern Texas M 2.8 11:48 UT
9400 1939 1943 1947 C1.8 (November 17, 2024) 7.2E-04
Northern California M 2.2 19:44 UT
Molucca Sea M 4.1 20:05 UT
9460 2303 2313 2337 C2.0 (November 17, 2024) 3.5E-03
New Guinea M 4.8 23:01 UT
Southern Mid-Atlantic M 5.0 23:05 UT M 5.1 23:13 UT
GEOMAGNETIC FIELD: unsettled November 18, 2024 quiet November 19-20. Solar M-flare chance: 50% X-class: 10% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 14 6 12:00 5 117 146
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 17, 2024
A series of light earthquakes including an M 3.4 and 3.8 occurred today in the greater Los Angeles, California region. NEIC reported intensity IVin California at Los Alamitos, Rancho Cucamonga, Fontana and III in Los Angeles, Torrance, Long Beach, Pasadena, Rowland Heights, Ontario, Chula Vista, Grand Terrace, Rialto, San Bernardino, Riverside, Sun City, Anaheim among others.
An earthquake of M 3.2 was widely felt in the region of Missouri and Arkansas today. NEIC reported it was felt with intensity up to IV in Misouri at Bragg City and Aayti and in McKenzie, Tennessee with III in Missouri at Kennett, Steele, Caruthersville and in Oldenburg, Indiana and Bono, Arkansaas. Lesser shaking occurred in Arkansas at Blytheville, Marion, Marmaduke, Rector, and in Tennessee at Dyersvurg, Jackson and Trenton.
The M 3.2 in Missouri followed an M 2.8 today in Henning, Tennessee area. NEIC reported it was felt with intensity up to III in Tennessee in Burlison, Memphis and Henning and II in Covington, Ripley, Trenton and in Rossville, Illinois.
NEIC reported continuing earthquakes of M 3.5 in Southern Texas following a series in the area on November 16, 2024. These were felt with intensity up to V in the area(s) of Southern Texas at Pleasanton and II-III in Floresvile, Poteet, Poth and Cibolo.
NEIC reported this earthquake of M 2.9 in Northern California was felt with intensity up to III in the area(s) of Northern California at Westwood.
NEIC reported this earthquake of M 2.6 in The Geysers, California was felt with intensity up to II-III in the area(s) of The Geysers, California in Healdsburg and Middletown.
NEIC reported this earthquake of M 4.9 in New Guinea was felt with intensity up to II in the area(s) of New Guinea at Kimbe.
NEIC reported this earthquake of M 3.2 in Northern Oklahoma was felt with intensity up to III in the area(s) of Northern Oklahoma in Nash.
EMSC reported this earthquake of M 5.1 in Kamchatka, Russia was felt with intensity up to IV in the area(s) of Kamchatka, Russia in Petropavlovsk and Vilyuchinsk.
The full moon arrived at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-17 00:00 UT 15.8N 121.9E 160 kts Central Philippines
Tyhoon Man-yi (TD 25W) continued today in the area of Luzon, Philippines with winds up to 160 kts where it made landfall with loss of life, torrential rains and winds and flooding. It is likely to track to the west dissipating by November 21. Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17.
TROPICAL STORM SARA (19)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SARA 2024-11-17 00:00 UT 16.8N 87.8W 40 kts Northern Guatemala
Tropical Storm Sara (19) continued today in the area of northern Guatemala and Honduras with winds up to 40 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region. It is now expected to hit Chiapas Mexico and to dissipate in the next two days over Mexico and Guatemala.
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-17 00:00 UT 16.0S 70.7E 135 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 135 kts. It is expected to track to the south and west over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
8940 0003 0013 0017 C2.9 (November 16, 2024) 1.0E-03
8960 0126 0137 0141 M1.6 (November 16, 2024) 4.4E-03
Lake Baykal M 4.0 01:43 UT
9010 0723 0728 0737 C2.5 (November 16, 2024) 1.8E-03
9090 1603 1610 1616 C1.9 (November 16, 2024) 1.4E-03
Veracruz M 4.0 16:04 UT
Central Peru M 4.0 16:19 UT
Ryukyu Is. M 4.0 16:19 UT
9100 1650 1657 1702 C1.9 (November 16, 2024) 1.3E-03
Sulawesi M 4.0 17:15 UT
Iceland M 3.9 16:45 UT
9110 1818 1832 1843 C2.9 (November 16, 2024) 3.7E-03
Sumatra M 4.7 18:35 UT
Northern Colombia M 4.4 18:25 UT
9130 2017 2028 2033 C3.0 (November 16, 2024) 2.6E-03
Guerrero M 4.2 20:37 UT
Jalisco M 3.4 20:23 UT
9150 2145 2202 2220 C3.1 (November 16, 2024) 5.6E-03
Los Angeles, CA M 3.5 22:17 UT
Bonin Is. M 4.4 22:33 UT
9160 2301 2307 2315 C1.9 (November 16, 2024) 1.5E-03
Hindu Kush M 4.6 23:13 UT
GEOMAGNETIC FIELD: unsettled November 17 and 19, active November 18, 2024. Solar M-flare chance: 50% X-class: 15% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 9 8 07:00 4 71 149
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 16, 2024
A series of light to moderate earthquakes began today in the region of Antigua and Barbuda, Caribbean with M 4.9. NEIC reported maximum intensity V in Netherlands Antilles at Cul De Sac Sint; III in Antigua and Barbuda at Potters Village and Freetown and in Basseterre, Saint Kitts and Nevis with II in Guadeloupe, Saint Kitts and Nevis and Antigua and Barduda.
EMSC reported it was felt with moderate to strong motion in Cofrington, Antigua and Barbuda and lightly in Guadeloupe at Baie-Mahault and Lamentin.
An M 4.9 also occurred today in eastern Turkey near Nurluca, Turkey. NEIC reporte intensity VII and slight Damage in Turkey at Hemsin Rize and II-III in Vakfikebir Trabzon, Turkey and in Batumi, Georgia.
EMSC reported moderate to strong shaking in eastern Turkey at Hamidiye. Gulbahar, Tophane, Rize, Camionu, Isiki, Merkez and Yaliboyu among others.
The earthquake in eastern Turkey followed shortly after an M 4.9 in Central Turkey near Nurhak. NEIC reported this event was felt with intensity IV in Gaziantep, Turkey.
EMSC reported moderate shaking in Turkety at Mimar Sinan, Savakli, Cat, Kizilcaoba, Pinarbasi, Tepebasi among others for this event in central Turkey.
An unusually large M 3.8 earthquake occurred today in the Mammoth Lakes aea of Central California today. NEIC reported intensity III in Ludlow, Bishop and Mariposa and II in Hawthorne, Mammoth Lakes, Auberry and North Fork, California.
NEIC reported these earthquakes of M 3.5, 3.1 and 2.8 in Southern Texas were felt with intensity up to V in the area(s) of Southern Texas at Pleasanton and II-III in Floresvile, Poteet, Poth and Cibolo.
NEIC reported this earthquake of M 3.0 in Northern California in the Geysers was felt with intensity up to IV in the area(s) of Northern California in the Geysers at Middletown and II-III in Healdsburg and Windsor.
NEIC reported this earthquake of M 2.6 in the Channel Islands, California was felt with intensity up to IV in the area(s) of the Channel Islands, California at Thousand Oaks, Escondido, Camarillo, Malibu, Agoura Hills, Westlake Villate, San Diego and Ventura.
NEIC reported this earthquake of M 3.4 off the coast of Oregon was felt with intensity up to IV in the area(s) of Oregon in Portland.
EMSC reported this earthquake of M 3.2 in New South Wales, Australia was felt with intensity up to II in the area(s) of New South Wales, Australia at Trentham.
EMSC reported this earthquake of M 4.3 in Japan was felt with light intensity.
EMSC reported this earthquake of M 4.2 in Gujarat, India was felt with intensity up to IV in the area(s) of Gujarat, India at Mahesana.
The full moon arrived at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-16 00:00 UT 12.9N 125.4E 140 kts East of Philippines
Tyhoon Man-yi (TD 25W) continued today in the area east of Samar, Philippines with winds up to 140 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Central Philippines as this storm is in the area extending through central Philippines through November 17.
TROPICAL STORM SARA (19)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SARA 2024-11-16 00:00 UT 16.0N 85.1W 40 kts Honduras
Tropical Storm Sara (19) continued today in the area of Honduras with winds up to 40 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region. It is now expected to hit Chiapas Mexico and to dissipate in the next two days over Mexico and Guatemala.
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-16 00:00 UT 13.8S 73.4E 120 kts South Indian Ocean
Tropical Cyclone Bheki (02S0) continued today in the area of the south Indian Ocean with winds up to 120 kts. It is expected to track to the south and west over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 14N 108W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
8720 0138 0146 0208 M1.1 (November 15, 2024) 1.2E-02
Andreanof Is. M 4.7 02:17 UT
Molucca Sea M 4.6 02:08 UT
8810 1205 1218 1226 M1.0 (November 15, 2024) 8.3E-03
8860 1655 1706 1711 C2.7 (November 15, 2024) 2.0E-03
8870 1832 1842 1847 C2.2 (November 15, 2024) 1.8E-03
Bonin Is. M 4.4 18:51 UT
8910 2227 2234 2239 C2.1 (November 15, 2024) 1.4E-03
Antigua and Barbuda M 4.3 22:32 UT
Channel Islands, California M 2.6 22:38 UT
Mindanao M 4.2 22:35 UT
Geysers, California M 2.9 22:41 UT
GEOMAGNETIC FIELD: unsettled November 16-17, active November 18, 2024. Solar M-flare chance: 50% X-class: 15% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 13 22 10 19:00 5 71 149
A strong Gamma Ray Burst was recorded by SWIFT on November 15, 2024 at 13:18:25 UT (#241115A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 15, 2024
The strongest earthquake in the world today was an M 6.6 in New Ireland, PNG. NEIC reported it was felt with maximum intensity IV in East New Britain at Kokopo and III in Namatanai, New Ireland.
This event of M 6.6 is the strongest within about 200 km of this epicenter since
an M 7.5 on May 14, 2019. At the time this summary noted:
"The strongest earthquake in the world today was an M 7.5-7.7 in the New Britain
region of Papua New Guinea. NEIC reported it was felt with maximum intensity VII
in Rabaul, New Britain and VI in Kokopo; V in Namatanai, New Ireland; IV in Arawa, Solomon Islands and II-III in Kavleng, New Ireland and within about 500 km of the epicenter.
It was also reported felt with moderate to strong intensity in Port Vila, Lihir Island, Bougainville, Port Moresby with power blackouts in the
Kokopo area. PTWC issued a tsunami warning but this was later withdrawn. Villagers
near the epicenter on the west coast of New Ireland reported seeing the ocean
recede but no damaging waves were recorded. Damage did occur in New Britain but
immediate reports are unclear as to how great it was. This is the strongest
earthquake in the world during the year 2019 to date. An M 7.5 hit the region of Ecuador
on February 22, 2019, the largest previous during this year. This earthquake
was simultaneous with the strongest geomagnetic storm since August 26, 2018 when AP reached 76." (May 14, 2019)
The strongest earthquake in the U.S. or Canada today was an M 5.1 in the Andreanof Islands, Alaska, Aleutians. NEIC reported it was felt with intensity IV in Adak, Alaska.
This event was associated with two other moderate earthquakes in the Andreanof
Islands today - both of M 4.7. NEIC also reported the first M 4.7 was felt lightly in Adak, Alaska.
Today's event of M 5.1 is the strongest within about 200 km of this epicenter since an M 5.8 on November 3, 2024. At the time this
summary noted:
"The strongest earthquake in the world (and in the U.S. or Canada today was an M 6.1-6.3 in the
Andreanof Islands, Aleutians. It was reported to have been lightly felt with intensity up to IV in this remote area at Adak, Alaska.
This event occurred at a longitude where tidal stresses were maximized with
the last new moon as reported in previous issues of this summary as:
"The new moon arrived on December 12, 2023 at 23:32 UT. Longitudes which were at local solar midnight at this time are located at about 7 East while those at local solar noon are near 173 West. In the east these include most of western Europe and Iceland while in the west areas of the western Aleutians, Alaska, Hawaii, Tonga/Fiji/Kermadec Islands, New Zealand to the Balleny Islands and portions of the Pacific-Antarctic Ridge are included. These are the most likely areas to see significant tidal triggering with this new moon. Other areas may also see tidal promotion in the next week especially at times of large solar flares and near local solar midnight and solar noon. The likelihood of a strong associated earthquake with this full moon are considered moderate to high in the next week (December 7-14, 2023)" (December 12-16, 2023).
At the time of that new moon this report emphasized that the Andreanof
Islands were likely to see enhanced seismicity at this time as:
"The strongest earthquake in the U.S. or Canada today was an M 4.3 in the
Andreanof Islands, Alaska. It was not reported felt in this remote area.
Like the activity in Tonga, it occurred near the longitude of highest
tidal stress several hours before the new moon and was probably triggered
by strong tidal stresses at that time. The last earthquake in the Andreanof
Islands of M>=4.2 was an M 5.0 with the last full moon on November 30, 2023. (December 13, 2023, November 3, 2024)
It occurred within minutes of local solar noon and was probably promoted by
tidal stresses associated with today's full moon as noted in this and previous
issues of this summary:
"The full moon will arrive at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight." (November 12-14, 2024)
An M 3.3 was felt widely in Hawaii today and was followed later in the day by earthquakes of M 3.1 and M 4.1 among others. NEIC reported the M 3.3 - first in the series was felt with intensity II-III in Hawaii at Laupahoehoe, Mountain View, Captan Cook,Hakalau, Hilo, Honomu, Kailua Kona, Kurtistown, Naalehu and Ninole, Hawaii.
NEIC reported this earthquake of M 3.1 in Hawaii was felt with intensity up to IV in the area(s) of Hawaii at Volcano.
This followed an earthquake of M 4.1 which was widely felt in Hawaii today. NEIC reported this event was felt with maximum intensity IV in Kealakekua and II-III in Hawaii at Captain Cook, Hakalau, Holualoa, Kailua Kona, Kurtistown, Hilo, Honokaa, Kamuela, Mountain View.
EMSC reported hard jolts at Pepeekeo for this earthquake.
NEIC reported this earthquake of M 2.7 in Washington State was felt with intensity up to II in the area(s) of Washington State in Tacoma and in Victoria, British Columbia, Canada. It may also have been felt in Washington at Vashon, Seattle, Anacortes, Friday Harbor, Marysville, Port Townsend and in Cumberland, B.C.
NEIC reported this earthquake of M 2.7 in the Gulf of Catalina was felt with intensity up to II in the area(s) of the Gulf of Catalina at San Clemente and San Marcos.
NEIC reported this earthquake of M 2.9 in Central California was felt with intensity up to II in the area(s) of Central California in Hanford and Stratford.
The full moon will arrive at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TROPICAL CYCLONE 19
---- ------- ---------- -------- ----- ------ ------- ---------------
TC 19 2024-11-15 00:00 UT 16.1N 80.2W 30 kts Honduras
Tropical Cyclone 19 formed today in the area east of Honduras with winds up to 30 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region.
TYPHOON USAGI (DEPRESSION 27W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH USAGI 2024-11-15 00:00 UT 20.5N 120.2E 85 kts Northern Philippines
Typhoon Usagi (27W) continued today in the area of the northern Philippine Islands with winds up to 85 kts as a major typhoon and is likely to track to the north for the next several days, Enhanced seismicity is expected in the region of the central and northern Philippines and eventually in Taiwan (around November 16) and the Ryukyu Islands, Japan as this storm is in the area.
TYPHOON MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH MAN-YI 2024-11-15 00:00 UT 10.9N 130.4E 110 kts East of Philippines
Tyhoon Man-yi (TD 25W) continued today in the area east of Mindanao, Philippines with winds up to 110 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Mindanao as this storm is in the area extending through central Philippines through November 17.
TROPICAL STORM SARA (19)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SARA 2024-11-15 00:00 UT 16.0N 85.1W 45 kts Honduras
Tropical Storm Sara (19) continued today in the area of Honduras with winds up to 45 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region. If it continues on the projected path it could turn north and threaten the west coast of Florida late next week.
TROPICAL CYCLONE BHEKI (02S)
---- ------- ---------- -------- ----- ------ ------- ---------------
TC BHEKI 2024-11-15 00:00 UT 11.8S 75.4E 80 kts South Indian Ocean
Tropical Cyclone Bheki (02S0 formed today in the area of the south Indian Ocean. It is expected to track to the south and west over the next several days. South Indian Ridge systems may be activated as this storm passes overhead. The antipode is at 12N 105W south of Jalisco, Mexico and near the East Pacific Rise. These areas could see enhanced seismicity as this storm moves to the southwest over the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
8650 0755 0803 0825 C1.7 (November 14, 2024) 4.7E-04
Oaxaca M 4.1, 4.1 08:21 UT 09:19 UT
8660 0825 0855 0858 C2.0 (November 14, 2024) 4.3E-03
8670 0858 0913 0925 C2.9 (November 14, 2024) 4.3E-03
Guerrero M 5.0 09:16 UT
8680 1145 1153 1158 C2.7 (November 14, 2024) 7.6E-04
8690 1239 1246 1251 C2.8 (November 14, 2024) 1.6E-03
Southern Texas M 2.0 12:36 UT
Hindu Kush M 4.2 13:07 UT
8700 1529 1538 1544 C2.8 (November 14, 2024) 1.7E-03
Sunda Strait, Indonesia M 4.3 15:32 UT
Flores Sea M 4.5 15:43 UT
GEOMAGNETIC FIELD: active November 15, unsettled November 16-17, 2024. Solar M-flare chance: 60% X-class: 20% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 11 14 10 18:00 4 96 147
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
MODERATE EARTHQUAKE IN CENTRAL TURKEY
EARTHQUAKE SUMMARY FOR OCTOBER 27, 2024
The strongest earthquake felt in the world today was an M 4.9-5.0 in Central Turkey. NEIC reported it was felt with intensity up to III near Feke, Turkey.
EMSC reported moderate to strong shaking in Turkey at Arslanpasa, Azapli, Sevkiye, Sehit Halis Sisman, Vedat Kocadalli, Fatah, Esenevler, Osmaniye, Cumhuriyet, Raufbey among others. The last earthquakes within about 200 km of this epicenter with M>=4.9 was reported by NEIC on August 12, 2024 and September 7, 2024 both with M 4.9-5.0. The only event in the past 1.5 years in the region occurred with M 5.5 on July 25, 2023. At the time this summary noted:
"A moderate earthquake of M 5.5 was widely felt in Central Turkey today. NEIC reported it was felt with maximum intensity VI in Kozan, Adana and Kadirli, Osmaniye with IV in Osmaniye, Yahyali, Adana, Talas, Kayseri and III in Mersin, Icel, Bor Nigde and Kahramanmaras. This appears to be a long-term aftershock of the M 7.7 of February 6, 2023. An M 6.3 hit the border region of Turkey and Syria about 200 km south of this on February 20, 2023, the only earthquake in Turkey of M>5.5 since February 6. It is the strongest aftershock in the region since February 6." (July 25, 2023)
Forecast 167356 had expected this earthquake within about 50 km in early November.
O: 27OCT2024 17:07:10 37.6N 36.0E MW=4.9 EMSC CENTRAL TURKEY
P: 5NOV2024 167356 38.0N 36.0E 3.5-5.1 CAAAA Turkey
An unusual series of earthquakes, including an M 3.2 occurred west of Los Angeles, California today. These events were widely felt in the Lompoc, California with intensity up to V. It was reported with maximum intensity V in Southern California at Lompoc and II-III in Burbank, San Luis Obispo, Buellton, Oceano, Santa Maria, Torrance, Altadena, Chatsworth, Santa Barbara, New Cuyama, Los Osos and others.
Forecast 167035 had expected this activity in late October to the north of this epicenter.
O: 28OCT2024 03:55:49 34.6N 120.5W ML=3.1 EMSC CENTRAL CALIFORNIA
P: 31OCT2024 167035 36.1N 120.1W 2.5-4.6 BBAAA Central California
The strongest earthquake in the U.S. or Canada today was an M 4.1 off Vancouver, British Columbia. It followed an earlier event of M 3.2. The last earthquake within about 100 km of today's M 4.1 was an M 4.1 on October 2, 2024. These appear to be aftershocks f an M 6.4 in the area of July 11, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.4 in the series in Vancouver Island, British Columbia which began July 4, 2024. NEIC reported it was lightly felt with moderate intensity up to IV in Tofino, Canada. EMSC reported light shaking in Chilliwack, Canada. Several moderate aftershocks – including an M 5.4 - were also felt in this region." (July 11, 2024)
Forecast 167132 had expected this earthquake within about 50 km was likely around October 29.
O: 27OCT2024 05:20:40 48.8N 128.7W MB=3.2 ECAN of Port Hardy, BC
O: 28OCT2024 03:11:43 48.8N 129.2W MB=4.1 ECAN OF PORT HARDY, BC
P: 29OCT2024 167132 49.3N 129.0W 2.8-5.3 AAAAA Vancouver Island area
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: 27OCT2024 06:56:55 23.4N 120.5E Mw=4.2 EMSC TAIWAN
O: 27OCT2024 10:21:44 24.0N 121.7E MW=4.8 EMSC TAIWAN
P: 3NOV2024 167298 27.0N 127.0E 4.0-5.4 CCCAA Ryukyu Islands
NEIC reported this earthquake of M 5.1 in Taiwan was felt with intensity up to IV in the area(s) of Taiwan in Hualien with intensity IV.
O: 27OCT2024 11:46:34 21.2N 71.1E ML=3.7 EMSC GUJARAT, INDIA
P: 27OCT2024 167014 23.0N 70.0E 3.5-5.1 ABAAA India
O: 27OCT2024 22:38:11 36.7N 71.3E MB=4.2 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 27OCT2024 167045 36.0N 71.0E 3.8-5.2 AAAAA Hindu Kush/Pakistan
INDONESIA AND PHILIPPINES
O: 27OCT2024 17:15:41 0.8N 97.3E ML=4.3 EMSC NIAS REGION, INDONESIA
P: 26OCT2024 166949 0.0N 98.0E 4.0-5.4 AAAAA So. Sumatera
O: 27OCT2024 13:32:39 1.1S 127.3E MB=4.5 EMSC KEPULAUAN OBI, INDONESIA
O: 27OCT2024 13:35:07 1.1S 127.4E mb=4.7 EMSC KEPULAUAN OBI, INDONESIA
P: 31OCT2024 166957 4.0S 129.0E 4.0-5.4 BCBAA Ceram area
O: 28OCT2024 05:40:28 1.8N 126.9E MB=4.6 EMSC MOLUCCA SEA
P: 30OCT2024 166946 2.0N 127.0E 4.0-5.6 AAAAA Halmahera
O: 27OCT2024 20:58:19 2.1S 137.4E MW=4.7 EMSC PAPUA, INDONESIA
P: 28OCT2024 166967 3.0S 140.0E 4.0-5.4 AACAA Papua New Guinea
O: 27OCT2024 15:56:22 5.8N 126.7E MB=4.6 EMSC MINDANAO, PHILIPPINES
P: 27OCT2024 166946 5.0N 127.0E 4.0-5.6 AAAAA Halmahera
O: 27OCT2024 16:45:21 6.1S 103.3E ML=4.4 EMSC SOUTHWEST OF SUMATRA, INDONESI
P: 26OCT2024 166972 6.0S 103.0E 4.0-5.5 AAAAA So. of Sumatera
O: 27OCT2024 07:15:33 6.2S 155.0E MB=4.3 EMSC BOUGAINVILLE REGION, P.N.G.
P: 28OCT2024 166973 7.0S 155.0E 4.0-5.4 AAAAA Solomon Islands
O: 27OCT2024 07:53:47 7.3S 125.6E ML=4.1 EMSC KEPULAUAN BARAT DAYA, INDONESIA
O: 28OCT2024 02:02:58 7.2S 125.8E MB=4.8 EMSC KEPULAUAN BARAT DAYA, INDONESI
P: 29OCT2024 166954 8.0S 127.0E 4.0-5.6 AAAAA Banda Sea
O: 28OCT2024 02:21:52 9.1S 114.9E MB=4.4 EMSC SOUTH OF BALI, INDONESIA
P: 31OCT2024 167186 10.0S 116.0E 4.0-5.4 BAAAA Sumbawa Island area
NEIC reported this earthquake of M 4.4 in Bali, Indonesia was felt with intensity up to III in the area(s) of Bali, Indonesia near Jimbaran.
Intensity II-III was reported in Bali at Denpasar, Kuta and Ubud.
EMSC reported strong shaking in Kuta, Sukawati, Ubud, Abang.
O: 27OCT2024 18:04:46 11.4S 121.4E ML=4.0 EMSC SOUTH OF TIMOR
P: 31OCT2024 166959 7.0S 121.0E 4.0-5.4 BCAAA Flores Island area
NEIC reported this earthquake of M 4.8 in Timor, Indonesia was felt with intensity up to III in the area(s) of Timor, Indonesia near Metinaro.
O: 27OCT2024 13:04:18 20.0N 121.2E ML=3.6 EMSC BABUYAN ISL REGION, PHILIPPINE
P: 6NOV2024 167273 19.0N 122.0E 3.5-5.0 CAAAA Luzon, Philippines
CENTRAL AND SOUTH AMERICA
O: 28OCT2024 01:22:44 2.4S 79.5W MB=4.4 EMSC NEAR COAST OF ECUADOR
P: 31OCT2024 166958 4.0S 80.0W 4.0-5.6 BBAAA Ecuador
O: 28OCT2024 00:14:45 4.8N 82.7W MW=4.9 EMSC SOUTH OF PANAMA
P: 30OCT2024 166944 5.0N 83.0W 3.5-5.0 AAAAA Costa Rica
O: 28OCT2024 04:03:00 6.9N 72.9W MB=4.4 EMSC NORTHERN COLOMBIA
P: 29OCT2024 166952 9.0N 70.0W 4.0-5.7 ACCAA Venezuela
EMSC reported this earthquake of M 4.4 in Colombia was felt with intensity up to IV in the area(s) of Colombia at San Gil.
O: 27OCT2024 07:19:30 6.9N 82.3W ML=4.0 EMSC SOUTH OF PANAMA
P: 30OCT2024 166944 5.0N 83.0W 3.5-5.0 BBAAA Costa Rica
O: 27OCT2024 11:35:03 7.2S 76.8W ML=4.1 EMSC NORTHERN PERU
P: 30OCT2024 166955 8.0S 74.0W 3.5-5.0 BACAA Brazil
O: 27OCT2024 18:44:57 7.6N 84.8W ML=4.3 EMSC OFF COAST OF COSTA RICA
P: 31OCT2024 166982 10.0N 84.0W 3.5-5.6 BCAAA Caribbean Sea
O: 28OCT2024 03:01:16 10.6N 86.1W MB=4.7 EMSC OFF COAST OF COSTA RICA
P: 31OCT2024 166982 10.0N 84.0W 3.5-5.6 BABAA Caribbean Sea
O: 27OCT2024 13:06:33 13.3N 89.8W ML=4.1 EMSC OFFSHORE EL SALVADOR
P: 28OCT2024 166984 13.0N 89.0W 3.5-5.3 AAAAA Coast of Central America
O: 28OCT2024 05:28:11 13.6N 92.4W ML=4.3 EMSC OFFSHORE GUATEMALA
P: 26OCT2024 166987 15.0N 92.0W 3.5-5.2 ABAAA Guatemala
O: 27OCT2024 09:36:54 14.8S 75.3W ML=4.2 EMSC NEAR COAST OF CENTRAL PERU
P: 3NOV2024 167437 15.0S 76.0W 4.0-5.8 CAAAA Central Peru
O: 27OCT2024 14:58:36 15.0N 94.5W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 27OCT2024 21:16:06 14.6N 93.0W ML=4.4 EMSC OFFSHORE CHIAPAS, MEXICO
O: 27OCT2024 08:09:19 15.9N 96.9W ML=4.0 EMSC OAXACA, MEXICO
P: 31OCT2024 166983 15.0N 95.0W 3.5-5.4 BABAA Chiapas, Mexico
O: 27OCT2024 18:06:58 16.1S 71.6W ML=4.0 EMSC SOUTHERN PERU
P: 4NOV2024 167442 16.0S 72.0W 4.0-5.7 CAAAA So. Peru/Bolivia
O: 28OCT2024 01:51:27 17.9N 66.8W MD=3.0 EMSC PUERTO RICO REGION
P: 30OCT2024 167004 19.0N 66.0W 3.4-5.1 ABAAA Puerto Rico
O: 27OCT2024 19:04:10 18.6N 102.2W ML=4.2 EMSC MICHOACAN, MEXICO
O: 27OCT2024 18:01:02 18.6N 102.2W ML=4.4 EMSC MICHOACAN, MEXICO
P: 30OCT2024 166994 18.0N 101.0W 3.5-5.4 BABAA Michoacan, Mexico
O: 27OCT2024 20:33:46 19.2N 64.6W MD=3.3 EMSC VIRGIN ISLANDS REGION
O: 27OCT2024 23:21:19 19.2N 64.6W MD=3.4 EMSC VIRGIN ISLANDS REGION
O: 28OCT2024 01:02:52 19.2N 64.4W MD=3.8 EMSC VIRGIN ISLANDS REGION
O: 28OCT2024 01:14:52 19.2N 64.6W MD=3.3 EMSC VIRGIN ISLANDS REGION
O: 28OCT2024 02:56:38 19.1N 64.6W MD=3.4 EMSC VIRGIN ISLANDS REGION
P: 30OCT2024 166990 19.0N 65.0W 3.0-5.4 AAAAA Leeward Islands
O: 27OCT2024 14:50:06 19.8N 66.7W MD=3.6 EMSC PUERTO RICO REGION
P: 30OCT2024 167004 19.0N 66.0W 3.4-5.1 BAAAA Puerto Rico
O: 27OCT2024 07:51:43 19.8N 71.0W ML=3.6 EMSC DOMINICAN REPUBLIC
P: 7NOV2024 167288 20.0N 71.0W 3.0-4.6 CAAAA Bahamas/No. Caribbean
O: 27OCT2024 21:16:14 22.0S 68.6W MB=4.7 EMSC ANTOFAGASTA, CHILE
O: 27OCT2024 09:50:13 23.4S 67.6W MW=4.9 EMSC ANTOFAGASTA, CHILE
P: 26OCT2024 167196 23.0S 69.0W 4.0-5.4 AABAA Coast No. Chile
AFRICA AND EUROPE
O: 27OCT2024 17:07:10 37.6N 36.0E MW=4.9 EMSC CENTRAL TURKEY
P: 5NOV2024 167356 38.0N 36.0E 3.5-5.1 CAAAA Turkey
O: 27OCT2024 13:36:27 44.5N 6.9E ML=3.1 EMSC FRANCE
P: 6NOV2024 167373 44.0N 7.0E 3.0-5.1 CAAAA Italy
O: 27OCT2024 19:51:55 39.2N 16.3E ML=3.7 EMSC SOUTHERN ITALY
P: 29OCT2024 167049 38.0N 14.0E 3.0-4.6 ABBAA Mediterranean/Sicily
O: 27OCT2024 15:41:02 71.7N 2.0W ML=4.2 EMSC JAN MAYEN ISLAND REGION
P: 31OCT2024 167178 72.0N 0.0E 3.0-4.5 BAAAA Norway
O: 27OCT2024 14:56:00 39.4N 26.3E ML=4.3 EMSC NEAR THE COAST OF WESTERN TURK
P: 26OCT2024 167127 40.0N 28.0E 3.0-5.0 AABAA Romania/NW Turkey
EMSC reported this earthquake of M 4.2 in Western Turkey was felt with intensity up to IV in the area(s) of Western Turkey at Dytiki Lesvos, Mithymna, Ummuhan, Hamdibey, Kucukkoy, Sefa Camlike, Sakarya, Sahil Kent, and in Greece at Petra, Kalloni, Mytilene, Eresos, Altinoluk, Tuzcumurat, Ebubekir, Ismetpasa among others.
SOUTHWEST PACIFIC
O: 27OCT2024 22:06:33 17.8S 178.2W MB=4.9 EMSC FIJI REGION
P: 29OCT2024 167189 19.0S 177.0W 4.0-5.5 ABAAA Tonga Islands
O: 28OCT2024 02:46:25 26.0S 179.9E MB=5.0 EMSC SOUTH OF FIJI ISLANDS
P: 28OCT2024 167207 21.0S 176.0E 4.0-5.4 ACCAA Tonga/Fiji
NEIC reported this earthquake of M 5.0 in the Fiji Islands was felt with intensity up to II in the area(s) of the Fiji Islands.
OCEAN RIDGES
No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.
ZEALANDIA AND AUSTRALIA REGION
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
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: 28OCT2024 01:49:54 33.3N 116.2W ML=2.7 EMSC SOUTHERN CALIFORNIA
P: 27OCT2024 167070 33.4N 116.7W 2.5-4.6 AAAAA So. California
O: 27OCT2024 11:45:51 34.0N 117.2W ML=2.0 EMSC GREATER LOS ANGELES AREA, CALI
P: 28OCT2024 167072 34.3N 117.5W 2.5-4.5 AAAAA So. California
O: 28OCT2024 03:55:49 34.6N 120.5W ML=3.1 EMSC CENTRAL CALIFORNIA
P: 31OCT2024 167035 36.1N 120.1W 2.5-4.6 BBAAA Central California
O: 27OCT2024 07:40:46 35.2N 118.9W ML=2.4 EMSC CENTRAL CALIFORNIA
P: 29OCT2024 167076 35.3N 118.6W 2.5-4.6 AAAAA So. California
O: 28OCT2024 04:39:30 35.2N 120.7W MD=2.1 EMSC CENTRAL CALIFORNIA
O: 27OCT2024 08:11:24 35.6N 121.4W MD=2.1 EMSC OFFSHORE CENTRAL CALIFORNIA
O: 27OCT2024 19:44:44 35.7N 120.3W MD=2.0 EMSC CENTRAL CALIFORNIA
P: 27OCT2024 167061 35.7N 121.2W 2.5-4.7 AAAAA Off So. California
O: 27OCT2024 14:28:01 36.2N 118.0W ML=2.6 EMSC CENTRAL CALIFORNIA
O: 27OCT2024 13:48:49 36.2N 118.0W ML=3.2 EMSC CENTRAL CALIFORNIA
P: 31OCT2024 167027 36.1N 118.1W 2.5-4.6 AAAAA California/Nevada area
NEIC reported these earthquakes of M 3.3 and 2.6 in Central California were felt with intensity up to V in the area(s) of Central California at Olancha
O: 27OCT2024 12:36:11 36.6N 117.1W ML=2.3 EMSC CENTRAL CALIFORNIA
P: 27OCT2024 167078 35.8N 117.6W 2.5-4.9 AAAAA So. California
O: 27OCT2024 13:49:32 38.3N 119.5W ML=2.2 EMSC CENTRAL CALIFORNIA
P: 29OCT2024 167033 39.3N 120.0W 2.5-4.5 AAAAA California/Nevada area
ALASKA
O: 27OCT2024 12:13:36 55.1N 160.6W ML=3.3 EMSC ALASKA PENINSULA
P: 31OCT2024 167158 54.3N 161.4W 3.5-5.1 BAAAA Unimak Islands, Aleutians
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 27OCT2024 08:13:20 43.6N 129.2W ML=3.5 EMSC OFF COAST OF OREGON
P: 5NOV2024 167389 43.8N 128.4W 3.0-4.4 CAAAA Off Coast of Oregon
NEIC reported this earthquake of M 3.5 off the coast of Oregon was felt with intensity up to III in the area(s) of western Oregon.
O: 27OCT2024 05:20:40 48.8N 128.7W MB=3.2 ECAN of Port Hardy, BC
O: 28OCT2024 03:11:43 48.8N 129.2W MB=4.1 ECAN OF PORT HARDY, BC
P: 29OCT2024 167132 49.3N 129.0W 2.8-5.3 AAAAA Vancouver Island area
ROCKY MOUNTAINS REGION
O: 27OCT2024 13:49:04 31.6N 104.3W ML=2.0 EMSC WESTERN TEXAS
O: 28OCT2024 05:27:15 31.6N 104.2W ML=2.0 EMSC WESTERN TEXAS
O: 27OCT2024 18:48:57 31.7N 104.1W ML=2.2 EMSC WESTERN TEXAS
O: 27OCT2024 21:00:51 31.7N 104.4W ML=2.3 EMSC WESTERN TEXAS
O: 28OCT2024 02:31:43 31.7N 104.4W ML=2.1 EMSC WESTERN TEXAS
O: 28OCT2024 03:32:58 32.8N 100.6W ML=2.2 EMSC WESTERN TEXAS
P: 27OCT2024 167064 32.6N 103.6W 2.0-4.2 AACAA SW U.S.A
O: 28OCT2024 04:44:20 37.4N 113.1W ML=2.2 EMSC UTAH
P: 28OCT2024 167031 37.8N 115.8W 2.5-4.6 AACAA California/Nevada area
EASTERN U.S./CANADA
O: 27OCT2024 23:16:29 35.0N 85.1W MD=2.0 EMSC EASTERN TENNESSEE
P: 30OCT2024 167047 35.0N 84.0W 2.0-4.1 BAAAA Kentucky/Tennessee/NC
P: 31OCT2024 167082 34.0N 85.0W 2.0-3.9 BAAAA Southeast U.S.
O: 28OCT2024 05:23:13 35.1N 95.5W ML=2.8 EMSC OKLAHOMA
P: 28OCT2024 167084 35.0N 96.0W 2.0-4.1 AAAAA Southern Plains
NEIC reported this earthquake of M 2.7 in Oklahoma was felt with intensity up to III in the area(s) of Oklahoma near Quinton.
O: 27OCT2024 10:28:27 35.4N 98.0W ML=2.3 EMSC OKLAHOMA
P: 28OCT2024 167084 35.0N 96.0W 2.0-4.1 AABAA Southern Plains
HAWAII
No earthquakes of M>=3 were located in Hawaii.
November 14, 2024
The strongest earthquake in the U.S. or Canada today was an M 4.5 in Southern Alaska. NEIC reported it was felt with intensity III in Anchorage and II in Alaska at Elmendorf AFB, and possibly in Seattle, Washington
EMSC reported moderate shaking in Anchorage and Eagle River, Alaska. This is the largest earthquake within about 150 km of this epicenter since an M 4.9
on October 6, 2022. At the time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 4.9 in southern Alaska. NEIC reported it was felt with intensity IV in Alaska at Palmer, Matanuska-Susitna, and III in Glennallen, Valdez, Chugiak, Eagle River, Wasilla, Fort Richardson, Girdwood.
A foreshock of M 4.1 was felt with intensity II-III in Alaska at Palmer, Glennallen, Valdez, Chugiak, Eagle River, Wasilla, Talkeetna and Anchorage.
This is an unusual earthquake. The last event within about 150 km of this
epicenter with M>=4.9 was an M 5.2 on August 24, 2004." (October 6, 2022)
The strongest earthquake in the U.S. or Canada outside Alaska today was an M 4.3 in Nevada. NEIC reported it was felt with intensity IV in Nevada at Silverpeak and Luning and II in Tonopah, Fallon and Gardnerville.
The last earthquake within about 100 km of this event in Nevada with M>=4.3
was recorded by NEIC on November 10, 2023 (one year ago) with M 4.3. At the
time this summary noted:
"The strongest earthquake felt in the U.S. or Canada today was an 4.3 in western Nevada. It was reported by NEIC to have been lightly felt in the area of Mina, Nevada.
The last earthquake within about 50 km of today's M 4.3 was an M 4.7 on February 15, 2022.
These are aftershocks of an M 6.5 which occurred on May 15, 2020." (November 10, 2023)
NEIC reported this earthquake of M 4.6 in Taiwan was felt with intensity up to V in the area(s) of Taiwan in Lotung, Ilan; Tali Taichung; IV in Hualien and II-III in Ilan, Taoyuan and Taipei.
EMSC reported it was felt with moderate shaking in Wuqi District, Hualien, Shoufeng Township; Zhudong Township and Nantun District, Taiwan.
It was probably promoted by the passage of TS Toraji to the south over the
past two days as noted in previous issues of this summary:
"Typhoon Toraji continued today in the area of central Philippines with winds up to 85 kts. This system is currently tracking to the West likely to make landfall in the central Philippines today (November 11). Moderate seismic enhancement is possible with this storm in the Philippines." (November 12-13, 2024)
NEIC reported this earthquake of M 3.3 in Central California was felt with intensity up to III in the area(s) of Central California in Palm Desert.
NEIC reported this earthquake of M 4.9 in Afghanistan was felt with intensity up to IV in the area(s) of Afghanistan at Kabul and in Anantnag, Jammu and Kashmir, India.
EMSC reported moderate shaking in Kabul, Afghanistan and Nowshera, Pakistan.
NEIC reported this earthquake of M 3.1 in Hawaii was felt with intensity up to IV in the area(s) of Hawaii at Kamuela and II-III in Kailua Kona, Hilo, Kailua, Kurtistown, Volcano.
NEIC reported this earthquake of M 4.6 in Guam was felt with intensity up to II in the area(s) of Guam in Tamuning.
It was probably promoted by the passage of TS Man-Yi near this epicenter on November 12, 2024 as noted at the time in this summary:
"TS Man-yi (TD 25W) continued today in the area of the northern Mariana Islands with winds up to 55 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area. The strongest earthquake in the world today was an M 5.6 which occurred in the Northern Mariana Islands as this storm passed near the epicenter." (November 11-12, 2024)
NEIC reported this earthquake of M 4.4 in Honshu, Japan was felt with intensity up to V in the area(s) of Honshu, Japan in Tomisato, Chiba, Mobara (IV) and Ishige, Ibaraki and II-III in Kanagawa and Chiba Prefectures.
EMSC reported this earthquake of M 4.5 in northeastern Iran was felt with intensity up to IV in the area(s) of northeastern Iran.
EMSC reported an earthquake of M 5.0 in the Loyalty Islands was felt with intensity up to IV in the area(s) of the Loyalty Islands in New Caledonia at Noumea, Mont Dore.
The full moon will arrive at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TROPICAL CYCLONE 19
---- ------- ---------- -------- ----- ------ ------- ---------------
TC 19 2024-11-14 00:00 UT 16.1N 80.2W 30 kts Honduras
Tropical Cyclone 19 formed today in the area east of Honduras with winds up to 30 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region.
TYPHOON USAGI (DEPRESSION 27W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH USAGI 2024-11-14 00:00 UT 17.9N 122.1E 140 kts Northern Philippines
Typhoon Usagi (27W) continued today in the area of the northern Philippine Islands with winds up to 140 kts as a major typhoon and is likely to track to the north for the next several days, Enhanced seismicity is expected in the region of the central and northern Philippines and eventually in Taiwan (around November 16) and the Ryukyu Islands, Japan as this storm is in the area.
TYPHOON TORAJI
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH TORAJI 2024-11-14 00:00 UT 21.0N 114.0E 35 kts west of northern Philippines
Typhoon Toraji continued today in the area west of Northern Philippines with winds up to 35 kts. This system is currently tracking to the West and made landfall in the northern Philippines on November 12. Moderate seismic enhancement is possible with this storm in the Philippines. Toraji is expected to dissipate in the South China Sea today.
TROPICAL STORM MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MAN-YI 2024-11-14 00:00 UT 10.6N 136.6E 065 kts West of Mariana Islands
TS Man-yi (TD 25W) continued today in the area west of the southern Mariana Islands with winds up to 65 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the Mariana Islands as this storm is in the area.
TROPICAL DEPRESSION SARA (19)
---- ------- ---------- -------- ----- ------ ------- ---------------
TD SARA 2024-11-13 00:00 UT 15.9N 82.2W 35 kts Honduras
Tropical Depression Sara (19) formed today in the area east of Honduras with winds up to 35 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region. If it continues on the projected path it could turn north and threaten the west coast of Florida late next week.
A tropical cyclone may be forming in the South Indian Ocean. This system is currently located at 10S 75E and tracking to the WSW with winds up to 33 kts. It is unlikely to enhance regional seismicity at this time. The antipode at 10N 105W is near western Mexico and could show enhanced seismicity should this storm intensify and continue on its current projected path.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
8390 0011 0022 0032 M1.0 (November 13, 2024) 7.5E-03
Oaxaca M 5.0 00:18 UT M 4.4 00:20 UT
Kamchatka M 4.5 07:36 UT
Sulawesi M 4.0 00:47 UT
8400 0125 0131 0143 C2.2 (November 13, 2024) 2.2E-03
South Sandwich Islands M 5.1 01:29 UT
Honshu M 4.4 01:24 UT
Java M 4.8 01:41 UT
Central California M 2.3 01:44 UT
8410 0233 0241 0250 C1.8 (November 13, 2024) 1.7E-03
Mammoth Lakes, California M 2.4, 2.1 02:38 UT, 02:40 UT
8440 0704 0708 0715 C2.1 (November 13, 2024) 1.8E-03
Honshu M 4.4 07:02 UT
8450 0715 0723 0727 C2.0 (November 13, 2024) 6.4E-04
Guatemala M 4.1 07:18 UT
8460 0727 0731 0736 C2.2 (November 13, 2024) 1.3E-03
New Guinea M 4.1 07:39 UT
8490 1257 1312 1321 C5.7 (November 13, 2024) 6.6E-03
8590 1321 1328 1333 C4.5 (November 13, 2024) 7.7E-04
8530 1449 1458 1503 C1.9 (November 13, 2024) 1.5E-03
8580 1657 1708 1717 M1.7 (November 13, 2024) 1.1E-02
8610 2245 2259 2314 C3.2 (November 13, 2024) 4.1E-03
GEOMAGNETIC FIELD: active November 14-15, unsettled November 16, 2024. Solar M-flare chance: 60% X-class: 20% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 7 13 5 18:00 5 116 150
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 13, 2024
The strongest earthquake in the world today was an M 5.5 north of Ascension Island in the Atlantic area. It was not reported felt in this remote area.
NEIC reported this earthquake of M 4.8 in Loyalty Islands was felt with intensity up to IV in the area(s) of Loyalty Islands in New Caledonia at Mont-Dore and Noumea.
NEIC reported this earthquake of M 5.1 in Afghanistan was felt with intensity up to IV in the area(s) of Afghanistan in Mingaora, NW Frontier, Pakistan; III in Afghanistan at Taleqan, Yangi Qala, Tahar, Faizabad Badahsan, Islamabad, Pakistan, Khorug Gorno, Tajukistan, Srinagar, Jammu and Kashmit, India and II in Afghanistn and Farkhar, Afghanistan.
EMSC reported this earthquake of M 5.1 in Pakistan was felt with intensity up to IV in the area(s) of Pakistan in Abbottabad, Islamabad, and in Uzbekistan.
NEIC reported this earthquake of M 4.8 in Java, Indonesia was felt with intensity up to IV in the area(s) of Java, Indonesia at Paseh; III in Bandung, Cisarua, Karang, Rajapolah, Sukabumi, Baturaden, Siareja and II in Ciamis.
NEIC reported this earthquake of M 5.0 in Guerrero, Mexico was felt with intensity up to V in the area(s) of Guerrero, Mexico at Jamiltepec, IV in Ometepec, and III in Acatlan, Azoyu, Chilapa, Tlapa amd om Oaxaca at Huaxpaltepec, Pinotepa de Don Luis and in Mexico City with intensity II.
NEIC reported this earthquake of M 3.0 in Hawaii was felt with intensity up to III in the area(s) of Hawaii at Volcano.
NEIC reported this earthquake of M 5.3 in New Britain was felt with intensity up to IV in the area(s) of New Britain at Kokopo, Papua New Guinea.
EMSC reported this earthquake of M 4.4 in Assam, India was felt with intensity up to IV in the area(s) of Assam, India at Mangan.
The full moon will arrive at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TROPICAL CYCLONE 19
---- ------- ---------- -------- ----- ------ ------- ---------------
TC 19 2024-11-13 00:00 UT 16.1N 80.2W 30 kts Honduras
Tropical Cyclone 19 formed today in the area east of Honduras with winds up to 30 kts. Enhanced seismicity is possible in northern central America near Honduras, Nicaragua and Guatemala in the next several days as this storm moves through the region.
TYPHOON USAGI (DEPRESSION 27W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH USAGI 2024-11-13 00:00 UT 17.2N 123.1E 160 kts Northern Philippines
Typhoon Usagi (27W) continued today in the area west of the Mariana Islands with winds up to 160 kts as a major typhoon and is likely to track to the north for the next several days, Enhanced seismicity is expected in the region of the central and northern Philippines and eventually in Taiwan (around November 16) and the Ryukyu Islands, Japan as this storm is in the area.
TYPHOON TORAJI
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH TORAJI 2024-11-13 00:00 UT 21.0N 114.0E 35 kts west of northern Philippines
Typhoon Toraji continued today in the area west of Northern Philippines with winds up to 35 kts. This system is currently tracking to the West and made landfall in the northern Philippines on November 12. Moderate seismic enhancement is possible with this storm in the Philippines.
TROPICAL STORM MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MAN-YI 2024-11-13 00:00 UT 11.2N 137.8E 055 kts West of Mariana Islands
TS Man-yi (TD 25W) continued today in the area west of the southern Mariana Islands with winds up to 55 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the Mariana Islands as this storm is in the area.
A tropical cyclone may be forming south of Haiti. This system is currently located at 17N 74W near the epicenter of the M 6.8 in Cuba two days ago. It could help promote a moderate aftershock in that region or in Jamaica or Hispaniola in the next couple of days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
8180 0117 0125 0138 C2.7 (November 12, 2024) 1.1E-03
Mindanao M 4.2 01:23 UT
New South Wales, Australia M 4.2 01:13 UT
8190 0213 0223 0241 C2.5 (November 12, 2024) 7.6E-04
8200 0430 0437 0453 C2.8 (November 12, 2024) 3.5E-03
8220 0740 0758 0815 C4.2 (November 12, 2024) 7.0E-03
Sea of Japan M 4.4 08:13 UT
Guerrero, M 3.9 07:44 UT
Sikkim, India M 4.4 08:30 UT
8270 1046 1050 1057 C2.1 (November 12, 2024) 1.3E-03
8280 1109 1120 1130 C4.1 (November 12, 2024) 3.9E-03
Chiapas M 4.1 11:11 UT
8350 1247 1401 1439 C8.2 (November 12, 2024) 3.8E-02
Honshu M 4.5 13:49 UT
Sulawesi M 3.9, 3.8 13:57 UT
New Britain M 5.3 14:31 UT
8340 2112 2119 2123 C1.7 (November 12, 2024) 1.1E-03
Argentina M 3.6 21:15 UT
Oregon M 2.2 21:30 UT
GEOMAGNETIC FIELD: active November 13-15, 2024. Solar M-flare chance: 60% X-class: 20% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 5 5 4 18:00 3 116 172
A strong Gamma Ray Burst was recorded by SWIFT on November 13, 2024 at 07:48:13 UT (#241113A). A preliminary UVOT Magnitude of V=14.97 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 12, 2024
The strongest earthquake in the world today was an M 5.6 in the northern Mariana Islands. It was not
reported felt in this remote area. The last earthquake within about 200 km of this
epicenter with M>=5.6 was recorded as an M 6.8 on April 4, 2024 and today's
event may be the largest aftershock of that to date. At the time this summary
noted:
"The strongest earthquake of the day was an M 6.8 in the northern Mariana Islands. NEIC reported
it was felt with intensity up to IV in the Maug Islands. EMSC reported strong
shaking in the Northern Mariana Islands at Kagman II, San Vicente, Dandan, San Jose, Mangilao, Guam and Kagman Vlg, Saipan.
This follows a series of strong earthquakes in the area of northern Mariana Islands
and Volcano Islands, Japan in the past several months including an M 6.9 on November 24, 2023
on November 24, 2023. Major earthquakes in the past 35 years hit the region at intermediate
and deep focus on July 29, 2016 (M 7.7); May 14, 2013 (M 6.8); October 31, 2007 (M 7.2) and August 23, 1995 (M 7.1)." (April 5, 2024)
Today's event in the northern Mariana Islands may have been promoted by
Tropical Storm Man-yi which was in the vicinity of this epicenter at the
time of this earthquake as noted in previous issues of this summary:
"TS Man-yi (TD 25W) continued today in the area northeast of the Mariana Islands with winds up to 45 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area." (November 10-11, 2024)
and
"TROPICAL STORM MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MAN-YI 2024-11-12 00:00 UT 14.1N 147.6E 055 kts North of Mariana Islands
TS Man-yi (TD 25W) continued today in the area of the northern Mariana Islands with winds up to 55 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area. The strongest earthquake in the world today was an M 5.6 which occurred in the Northern Mariana Islands as this storm passed near the epicenter." (November 11-12, 2024)
An M 2.7 was recorded in the area of western Texas and New Mexico today. NEIC reported it was part of a series of light earthquakes
that have hit the area in the past week. Residents have complained of a consistent
smell of "rotten eggs" (Sulfur Dioxide) and well as geyser-like phenomena
associated with these earthquake. This may indicate cracks that are expanding
and reaching the surface and could be followed by another moderate earthquake
shortly in the area.
NEIC reported this earthquake of M 4.2 in Southeastern Australia was felt with intensity up to IV in the area(s) of Southeastern Australia in New South Wales with maximum intensity IV in Muswellbrook and II-III in Cessnock, Forster-Tunccurry, Gunnedah, Nelson Bay, Newcastle, Richmond-Sindsor, Singleton and Wang-Rathmines.
NEIC reported this earthquake of M 2.8 in Northern California was felt with intensity up to III in the area(s) of Northern California in Elk, Manchester, Point Arena and II in Myers Flat and San Leandro.
NEIC reported this earthquake of M 3.4 in Puerto Rico was felt with intensity up to IV in the area(s) of Puerto Rico at Rincon.
The full moon will arrive at 21:29 UT on November 15, 2024. Longitudes which are at local solar noon are near 140 West and 40 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-12 00:00 UT 14.1N 109.4E 40 kts Vietnam
Typhoon Yinxing (TS 24W) continued today in the area of Vietnam with winds up to 40 kts and made landfall south of Hue and Da Nang today. Enhanced seismicity is possible in Southeast Asia as this storm makes landfall.
TROPICAL STORM USAGI (DEPRESSION 27W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS USAGI 2024-11-12 00:00 UT 14.0N 131.7E 045 kts East of Central Philippines
TS Usagi (27W) continued today in the area west of the Mariana Islands with winds up to 45 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the central Philippines and eventually in Taiwan (around November 16) and the Ryukyu Islands, Japan as this storm is in the area.
TYPHOON TORAJI
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH TORAJI 2024-11-12 00:00 UT 19.2N 118.0E 55 kts west of northern Philippines
Typhoon Toraji continued today in the area west of Northern Philippines with winds up to 55 kts. This system is currently tracking to the West and made landfall in the northern Philippines today (November 11). Moderate seismic enhancement is possible with this storm in the Philippines.
TROPICAL STORM MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MAN-YI 2024-11-12 00:00 UT 14.1N 147.6E 055 kts North of Mariana Islands
TS Man-yi (TD 25W) continued today in the area of the northern Mariana Islands with winds up to 55 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area. The strongest earthquake in the world today was an M 5.6 which occurred in the Northern Mariana Islands as this storm passed near the epicenter. It is expected to track to the west reaching northern Philippines and Taiwan around November 17-18 with winds up to 120 kts as a typhoon.
A tropical cyclone may be forming south of Haiti. This system is currently located at 17N 74W near the epicenter of the M 6.8 in Cuba two days ago. It could help promote a moderate aftershock in that region or in Jamaica or Hispaniola in the next couple of days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
8030 0357 0407 0425 C7.9 (November 11, 2024) 8.7E-03
Tonga M 5.0 04:02 UT
8070 0507 0526 0536 M1.1 (November 11, 2024) 3.3E-03
Vanuatu M 4.7 05:06 UT
Xinjiang M 4.3 05:29 UT
8090 0536 0543 0552 M1.4 (November 11, 2024) 1.3E-02
Northern California M 2.9 05:35 UT
8110 1419 1428 1438 C4.4 (November 11, 2024) 3.5E-03
Panama M 3.5 14:19 UT ; M 5.1 14:37 UT
Mammoth Lakes, CA M 1.7 14:25 UT
8120 1639 1647 1654 C2.3 (November 11, 2024) 1.8E-03
Iceland M 3.1 16:45 UT
Maule Chile M 2.9 16:40 UT
Guatemala M 4.1 16:55 UT
GEOMAGNETIC FIELD: active November 12-14, 2024. Solar M-flare chance: 70% X-class: 25% proton storm: 15%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 10 23 7 08:00 6 121 182
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
M 5.2 IN KERGUELEN ISLAND REGION PROBABLY TRIGGERED BY X-CLASS SOLAR FLARE
EARTHQUAKE SUMMARY FOR OCTOBER 26, 2024
The largest and most unusual earthquake in the world today was an M 5.2 in the South Indian Ocean. This event was not reported felt in this remote area. NEIC reported it was located SSW of Port-aux-Francais, French Southern Territories
near Kerguelan. This earthquake is the strongest within about 250 km of this epicenter since events of M 5.2-5.3 on July 28, 2007 and February 18 and 20 and March 2, 1993. Theonly event of significantly larger magnitude in the general area in the past 35 years was an M 5.7 on January 25, 1993. The antipode of this epicenter is at 50N 111W in Alberta Canada. Moderate seismicity in this region in recent months suggests that a far-field aftershock is possible near this Alberta epicenter. This event occurred within minutes of local solar noon and was probably promoted by strong tidal and geomagnetic stresses which maximize near this hour. This earthquake in Kurguelen Islands region also occurred at the peak output of Solar Flare 2380, an X1.8 flare. The parameters for this flare from SWPC are listed below.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2380 0632 0719 0756 X1.8 (October 26, 2024) 8.9E-01
Kerguelen Is. M 5.2 07:24 UT
O: 26OCT2024 07:23:56 50.2S 69.4E MB=5.2 EMSC KERGUELEN ISLANDS REGION
The strongest earthquakes in the U.S. or Canada today occurred off the coast of Northern California with M 4.4, 4.0 and 3.0. NEIC reported light shaking in Northern California at Novato and Eureka for these events. It was followed by aftershocks of M 3.1 and M 3.9 among others. This event occurred near local solar midnight and may have been promoted by tidal stresses which maximize near this hour.
Forecast 167121 had expected this event within about 50 km was likely around
October 26, 2024.
O: 26OCT2024 09:33:32 40.4N 125.7W Mw=3.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 26OCT2024 09:34:45 40.4N 125.5W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 26OCT2024 09:23:22 40.4N 125.5W MW=4.1 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 26OCT2024 167121 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
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: 26OCT2024 17:45:28 27.6N 86.0E ML=4.0 EMSC NEPAL
P: 31OCT2024 167019 27.0N 88.0E 3.5-5.4 BABAA Nepal
O: 27OCT2024 06:19:13 23.4N 120.5E mb=4.8 EMSC TAIWAN
O: 27OCT2024 06:56:55 23.4N 120.5E Mw=4.2 EMSC TAIWAN
O: 26OCT2024 22:16:53 21.9N 121.4E MB=4.4 EMSC TAIWAN REGION
P: 31OCT2024 166992 17.0N 120.0E 3.5-4.9 BCAAA Luzon, Philippines
NEIC reported these earthquakes of M 4.4, 4.3 and 4.2 in Taiwan were felt with intensity up to VI in the area(s) of Taiwan at Tainan and Chiayi Counties; V in Changhua, and Yenshui, Tainan; IV in Taipao Chiayi, and II-III in Nantou, Penghu and others.
O: 26OCT2024 17:08:18 29.3N 51.6E ML=4.0 EMSC SOUTHERN IRAN
P: 28OCT2024 167023 29.0N 51.0E 3.5-5.0 AAAAA So. Iran/Persian Gulf
O: 26OCT2024 08:35:56 41.0N 83.9E MB=5.1 EMSC SOUTHERN XINJIANG, CHINA
P: 29OCT2024 167107 41.0N 77.0E 4.0-5.4 BACAA Kirgizstan/Xinjiang
O: 26OCT2024 16:20:04 54.2N 163.1E MB=4.2 EMSC OFF EAST COAST OF KAMCHATKA
P: 27OCT2024 167149 55.0N 165.0E 4.0-5.7 AABAA Komandorsky Isl
O: 27OCT2024 04:49:49 54.6N 160.5E MB=5.3 EMSC NEAR EAST COAST OF KAMCHATKA
P: 26OCT2024 167146 53.0N 160.0E 4.0-5.5 ABAAA E. of Kamchatka
INDONESIA AND PHILIPPINES
O: 26OCT2024 15:52:03 2.2N 121.9E MB=4.6 EMSC CELEBES SEA
P: 28OCT2024 166939 1.0N 120.0E 4.0-5.4 ABBAA Celebes Sea
O: 26OCT2024 12:56:19 7.0S 129.1E MB=4.6 EMSC KEPULAUAN BABAR, INDONESIA
P: 30OCT2024 166979 6.0S 130.0E 4.0-5.5 BAAAA West Irian, PNG
O: 26OCT2024 16:22:50 8.0N 123.1E ML=4.2 EMSC MINDANAO, PHILIPPINES
P: 27OCT2024 166942 8.0N 125.0E 4.0-5.4 AABAA Central Philippines
O: 26OCT2024 14:21:56 8.4S 120.0E MB=4.6 EMSC FLORES REGION, INDONESIA
P: 31OCT2024 166959 7.0S 121.0E 4.0-5.4 BBAAA Flores Island area
No significant (M>=5) or unusual earthquakes were reported in Indonesia or the Philippines today.
CENTRAL AND SOUTH AMERICA
O: 26OCT2024 09:44:24 10.2N 86.4W ML=4.0 EMSC OFF COAST OF COSTA RICA
O: 26OCT2024 20:53:48 10.4N 86.2W ML=4.0 EMSC OFF COAST OF COSTA RICA
P: 31OCT2024 166982 10.0N 84.0W 3.5-5.6 BABAA Caribbean Sea
O: 27OCT2024 02:35:58 12.3N 64.7W ML=4.3 EMSC CARIBBEAN SEA
P: 8NOV2024 167286 11.0N 62.0W 3.4-5.1 CBBAA Windward Islands
O: 26OCT2024 07:05:09 14.1N 92.7W ML=4.3 EMSC OFFSHORE CHIAPAS, MEXICO
P: 26OCT2024 166987 15.0N 92.0W 3.5-5.2 AAAAA Guatemala
O: 27OCT2024 03:57:55 15.5N 60.6W ML=3.8 EMSC DOMINICA REGION, LEEWARD ISLAN
P: 3NOV2024 167270 16.0N 61.0W 3.0-5.3 CAAAA Leeward Islands
O: 27OCT2024 04:20:15 16.1N 93.7W ML=4.0 EMSC CHIAPAS, MEXICO
O: 26OCT2024 20:50:39 15.8N 92.8W ML=4.3 EMSC CHIAPAS, MEXICO
P: 26OCT2024 166987 15.0N 92.0W 3.5-5.2 AAAAA Guatemala
O: 26OCT2024 21:57:49 17.2N 94.5W ML=4.2 EMSC VERACRUZ, MEXICO
P: 31OCT2024 166983 15.0N 95.0W 3.5-5.4 BCAAA Chiapas, Mexico
O: 26OCT2024 20:10:02 18.0N 68.8W MD=3.5 EMSC DOMINICAN REPUBLIC REGION
O: 27OCT2024 04:54:33 18.9N 68.7W ML=3.4 EMSC DOMINICAN REPUBLIC
O: 27OCT2024 01:15:18 17.6N 67.9W MD=3.2 EMSC PUERTO RICO REGION
P: 27OCT2024 167005 18.0N 68.0W 3.4-5.4 AAAAA Puerto Rico
O: 26OCT2024 21:29:15 19.3N 108.1W ML=4.1 EMSC REVILLA GIGEDO ISLANDS REGION
P: 29OCT2024 166985 19.0N 107.0W 3.5-5.2 AAAAA Coast of Jalisco, Mexico
O: 26OCT2024 10:36:06 24.9N 109.4W ML=3.4 EMSC GULF OF CALIFORNIA
P: 31OCT2024 167012 24.0N 109.0W 3.5-5.0 BAAAA Gulf of California
O: 26OCT2024 17:37:30 31.3S 68.9W ML=4.0 EMSC SAN JUAN, ARGENTINA
P: 28OCT2024 167194 29.0S 68.0W 4.0-5.8 ACAAA Argentina
O: 26OCT2024 11:54:06 19.0N 64.7W MD=3.6 EMSC VIRGIN ISLANDS REGION
O: 26OCT2024 11:48:52 19.2N 64.6W MD=3.7 EMSC VIRGIN ISLANDS REGION
O: 26OCT2024 17:34:48 19.6N 64.5W MD=3.8 EMSC VIRGIN ISLANDS REGION
P: 30OCT2024 166990 19.0N 65.0W 3.0-5.4 BAAAA Leeward Islands
AFRICA AND EUROPE
O: 26OCT2024 12:21:39 9.1N 40.0E MB=5.0 EMSC ETHIOPIA
P: 3NOV2024 167231 9.0N 39.0E 3.0-4.8 CAAAA Central Africa
NEIC reported these earthquake of M 4.7 and M 4.8 in Ethiopia was felt with intensity up to IV in the area(s) of Ethiopia at Metehara, Oromia.
SOUTHWEST PACIFIC
O: 26OCT2024 13:09:18 15.3S 174.7W MB=4.4 EMSC TONGA
O: 27OCT2024 01:00:56 16.1S 174.9W MB=4.5 EMSC TONGA
P: 28OCT2024 167182 15.0S 175.0W 4.0-5.8 AAAAA Samoa Islands
No significant (M>=5) or unusual earthquakes were reported in the Southwest Pacific region today.
OCEAN RIDGES
O: 27OCT2024 00:31:16 24.0N 46.5W MB=5.0 EMSC NORTHERN MID-ATLANTIC RIDGE
P: 26OCT2024 167016 21.0N 46.0W 4.0-5.8 ACAAA Mid-Atlantic Ridge
O: 26OCT2024 07:23:56 50.2S 69.4E MB=5.2 EMSC KERGUELEN ISLANDS REGION
O: 26OCT2024 16:55:47 27.9N 15.8W ML=3.4 EMSC CANARY ISLANDS, SPAIN REGION
P: 31OCT2024 167011 28.0N 16.0W 3.0-4.6 BAAAA Canary Islands
ZEALANDIA AND AUSTRALIA REGION
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 26OCT2024 16:52:20 33.0N 138.3E MB=4.3 EMSC IZU ISLANDS, JAPAN REGION
P: 27OCT2024 167059 32.0N 142.0E 4.0-5.5 AACAA Off East Coast Honshu
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 27OCT2024 05:16:32 34.1N 117.0W ML=2.4 EMSC SOUTHERN CALIFORNIA
P: 28OCT2024 167072 34.3N 117.5W 2.5-4.5 AAAAA So. California
O: 26OCT2024 10:30:15 35.5N 117.4W ML=2.0 EMSC SOUTHERN CALIFORNIA
O: 27OCT2024 03:08:22 36.0N 117.4W ML=2.0 EMSC CENTRAL CALIFORNIA
O: 27OCT2024 02:22:04 36.6N 117.1W ML=2.6 EMSC CENTRAL CALIFORNIA
P: 27OCT2024 167078 35.8N 117.6W 2.5-4.9 AAAAA So. California
NEIC reported this earthquake of M 2.5 near the California-Nevada border was felt with intensity up to IV in the area(s) of
Death Valley and Felton California and in Indian Springs, Nevada, California.
O: 26OCT2024 19:21:06 37.1N 121.5W MD=2.3 EMSC NORTHERN CALIFORNIA
P: 27OCT2024 167036 36.8N 121.3W 2.5-4.4 AAAAA Central California
O: 27OCT2024 00:30:14 37.6N 118.9W MD=2.5 EMSC LONG VALLEY AREA, CALIFORNIA
P: 31OCT2024 167032 38.6N 118.6W 2.5-4.7 BAAAA California/Nevada area
NEIC reported this earthquake of M 2.5 in Mammoth Lakes, California was felt with intensity up to IV in the area(s) of Bishop and other areas, California.
O: 26OCT2024 10:46:07 38.8N 122.8W MD=2.2 EMSC NORTHERN CALIFORNIA
O: 26OCT2024 09:53:13 38.8N 122.8W MD=2.4 EMSC NORTHERN CALIFORNIA
P: 26OCT2024 167039 38.5N 122.7W 2.5-4.6 AAAAA Central California
P: 28OCT2024 167039 38.7N 122.7W 2.5-4.7 AAAAA Central California
O: 26OCT2024 09:33:32 40.4N 125.7W Mw=3.9 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 26OCT2024 09:34:45 40.4N 125.5W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 26OCT2024 09:23:22 40.4N 125.5W MW=4.1 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 26OCT2024 167121 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
O: 26OCT2024 18:48:17 40.5N 120.6W ML=3.5 EMSC NORTHERN CALIFORNIA
O: 26OCT2024 16:14:46 40.5N 120.6W MD=2.7 EMSC NORTHERN CALIFORNIA
P: 28OCT2024 167119 40.3N 121.2W 2.5-4.6 AAAAA Northern California
NEIC reported these earthquake of M 3.5 and M 2.8 in Northern California were felt with intensity up to IV in the area(s) of Northern California in Susanville and Chico.
O: 26OCT2024 08:57:52 40.5N 122.0W MD=2.3 EMSC NORTHERN CALIFORNIA
P: 28OCT2024 167119 40.3N 121.2W 2.5-4.6 AAAAA Northern California
ALASKA
O: 27OCT2024 06:14:41 58.8N 154.5W ML=3.0 EMSC ALASKA PENINSULA
P: 27OCT2024 167163 60.1N 153.4W 3.2-5.1 ABAAA Central Alaska
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 26OCT2024 13:34:01 48.2N 122.8W ML=2.0 EMSC STR. OF JUAN DE FUCA, WASHINGT
P: 27OCT2024 167135 48.9N 122.1W 2.0-3.9 AAAAA Washington state, U.S.
ROCKY MOUNTAINS REGION
O: 26OCT2024 21:09:38 31.6N 104.5W ML=2.6 EMSC WESTERN TEXAS
P: 27OCT2024 167064 32.6N 103.6W 2.0-4.2 AAAAA SW U.S.A
O: 26OCT2024 23:48:00 32.8N 100.7W ML=2.8 EMSC WESTERN TEXAS
P: 27OCT2024 167064 32.6N 103.6W 2.0-4.2 AACAA SW U.S.A
NEIC reported this earthquake of M 2.9 in Western Texas was felt with intensity up to III in the area(s) of Western Texas in Stanton.
O: 26OCT2024 22:25:29 37.3N 104.6W ML=2.8 EMSC COLORADO
P: 26OCT2024 167043 38.8N 107.4W 2.0-4.1 ABCAA Colorado area
NEIC reported this earthquake of M 2.8 in Southern Colorado was felt with intensity up to IV in the area(s) of Southern Colorado in Trinidad.
EASTERN U.S./CANADA
O: 27OCT2024 01:03:31 35.5N 84.5W MD=2.1 EMSC EASTERN TENNESSEE
P: 30OCT2024 167047 35.0N 84.0W 2.0-4.1 BAAAA Kentucky/Tennessee/NC
O: 26OCT2024 19:41:26 35.9N 98.3W ML=2.3 EMSC OKLAHOMA
P: 28OCT2024 167084 35.0N 96.0W 2.0-4.1 AABAA Southern Plains
HAWAII
No earthquakes of M>=3 were located in Hawaii.
November 11, 2024
A pair of strong earthquakes south of Cuba was reported on in the previous
issue of this summary. In the meantime the Cuban government has reported
the M 6.8 off southern Cuba near Bartolome Maso left many homes and businesses
damaged, power lines and landslides near Pilon, Granma Province cause a "lot of damage". Major
destruction and power outages also accompanied the passage of Hurricane Rafael
through the area several days ago. In the previous issue of this summary
today's earthquakes in Cuba had been noted as:
"A strong to major earthquake occurred today in the region of southern Cuba with M 6.8.
NEIC reported it was felt with damage in Cuba with intensity VIII in Rio Cauto, Granma and Cacocum, Holguin and VI in Bayamo, Santiago de Cuba, V in Guisa and in Jamaica at Saldings, and Cascade, Hanover. It was also felt in Jamaica with intensity IV in May Pen, Mona, Kingston, Saint Andrew, Saint Ann, Saint James, and with intensity III throughout the Dominican Republic, in Florida at Miami and Boca Raton. Al so felt with light intensity in Netherlands Antilles, Florida, Texas, Grand Cayman Islands, Chiapas, Mexico, with light shaking possibly as far as Pennyslvania, New York, and Georgia.
An M 5.9 several hours before the mainshock was reported by NEIC to have been felt with intensity V in Cuba at Camaguey and Jiguani and in Jamaica with IV. Lesser intensity was reported felt in Jamaica, Cuba, Cayman Islands and in portions of the east coast of the U.S. such as Florida to New Jersey.
EMSC reported moderate shaking in Jamaica at Saint Andrew, Manchester, Camaguey, Puerto Rico.
A minor tsunami May occurred with this M 6.8 earthquake but has not been documented at this time. The last earthquake in the world of M>=6.8 occurred was when an M 6.9 hit Tonga on
August 25, 2024 more than 2.5 months ago. This is a very long drought of earthquakes
for the world. Today's earthquake of M 6.8 in Cuba occurred within minutes of
local solar noon and accompanied a moderate solar flare. It was likely triggered
by strong tidal stresses combined with SFE from the flare, both of which maximize near
this hour. The only earthquake within about 300 km of this epicenter in the past
35 years occurred as a major M 7.7 on January 28, 2020 and may be the strongest
aftershock to date of that event. At the time this summary noted:
"An M 7.7 south of Cuba today was widely felt throughout the Caribbean and southeastern U.S. But if was far enough from land that there were no major damages or casualties reported with this event. An M 6.0 aftershock in the Cayman Islands followed.
Tsunamis are common with earthquake of this magnitude but it was probably strike-slip motion
which does not lift the surface greatly and, while the Pacific Tsunami Warning Center warned of a possible tsunami of 1-3 feet, but such a tsunami was not observed.
This is the strongest earthquake in the world since an M 8.0 in Northern Peru-Brazil on May 26, 2019 and two of M 8.2 and 7.9 in the Tonga-Fiji area in August and September, 2018. This is the strongest event within about 500 km of this epicenter since an M 7.9 in 1900 and an M 7.8 on June 14, 1899. Lesser earthquakes within the area of about 500 km from this epicenter have most
recently occurred on February 4, 2007 (M 6.2); and on May 25, 1992 (M 6.8). Three events
about 200 km to the west occurred on June 27, 1995 (M 6.0); September 9, 2004 (M 6.0) and
December 14, 2004 (M 6.8). The strongest historical events in the area occurred
on June 21, 1900 (M 7.9); June 14, 1899 (M 7.8) and in 1692 (M 7.7-7.8)." (January 28, 2020)
This summary has been following the recently enhanced seismicity
in the Dominican Republic, Haiti, Puerto Rico and Cuba since Hurricane Rafael
passed through this area during the past week. In previous update this
summary noted for example:
"An unusual earthquake of M 4.3 occurred in the eastern Caribbean Sea today. NEIC reported it was felt with intensity V in West Haiti at Caberet and Delmas and II in Aruba at Desarmes with lesser shaking in West Haiti at Petionville and Thomazeau and in San Juan de la Maguana, Dominican Republic.
This earthquake is the strongest in the Caribbean Sea within about 200 km in at
least 35 years. It occurred after a major hurricane of Category III-IV passed
over this epicenter over the past several days as noted in previous issues of
this summary as:
"Hurricane Rafael (TC 18) continued today in the area North of Cuba winds up to 105 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Jamaica and Cuba and may hit near the Texas-Mexico border as a hurricane or tropical storm around November 12-14. Regional seismicity enhancement could occur in eastern Mexico with this storm but is not expected to be strong" (November 7, 2024, November 8, 2024)
and
"Hurricane Rafael is taking an unexpected track to the west with current winds up to 140 km, but NHC expects it to dissipate early next week without making landfall.
It is the first tropical storm or hurricane to take this path since Hurricane Kate which followed a similar path in 1985 and
these two storms are the strongest recorded in the Gulf in modern times.
Strong enhancement of seismicity in the Caribbean and areas of Central America
is still expected in the next three days." (November 9, 2024)
Concern for enhanced seismicity in the Caribbean and Cuba at this time was first published
in this summary when Hurricane Rafael made landfall in Cuba on November 5-6, 2024
at the location of today's M 6.8 as:
"TS Rafael (TC 18) continued today in the area North of Cuba winds up to 80 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Jamaica and Cuba and may near the Texas-Mexico border as a hurricane or tropical storm around November 12-14. ..." (November 5-6, 2024)
The activity in Cuba was preceded by a moderate earthquake of M 4.7 in Puerto Rico. NEIC reported it was felt with intensity up to V in Trujillo Alto, Puerto Rico and in Saint Thomas, Virgin Islands and III-IV in Puerto rico at San Juan, Toa Baja, Fajardo, Guaynabo, and in the Virgin Islands at Frederiksted and Road Town Tortola, British Virgin Islands.
Today's earthquake in Cuba followed a moderately strong earthquake south of
this epicenter in Panama of M 5.8 and a foreshock of M 5.6. NEIC reported the mainshock was felt with intensity IV in Chiriqui, Panama at Los Lomas and Los Algarrobos and II-III in David, Gualaca, and in Cerro Sombrero Ngobe Bugle.
The forshock was felt in Chiriqui, Panama with V in Canoa and Gualaca and IV in Los Lomas and Los Algarrobos and III throughout much of southern Panama." (November 10, 2024)
The M 5.8 and M 5.6 in Panama were the strongest events in the region since an M 6.3 on April 4, 2023 and an M 6.7 on October 20, 2022.
At the time of the August event this summary noted:
"A moderately strong earthquake of M 5.8 also occurred south of Panama today. NEIC reported it was felt with damage and intensity VIII in Panama at Cerro Sombrero Ngobe Bugle, and lesser shaking in Chiriqui (IV) at Boquete and Volcan and in San Miguelito, Panama.
EMSC reported moderate shaking in Panama at Puerto Armuelles, David, Cahuita.
This event occurred within minutes of local solar midnight and may have been
promoted by strong tidal stresses which maximize near this hour.
This is the strongest earthquake near Panama within about 250 km since an
M 6.3 on April 4, 2023. At ths time this summary noted:
"The strongest earthquake in the world today was an M 6.7 south of Panama. NEIC reported maximum intensity VIII in Cerro Sombrero, Panama withIV in Remedios; V in Guarumal; IV in Pedregal, David, Berba, Chiriqui and less shaking in Horconcitos, Quitno, Los Algarrobas, Panama among others.
This is the strongest earthquake in the area south of Panama within about 250 km
of this epicenter since an M 6.9 about 250 km northwest of today's epicenter
on August 20, 1999 more than 23 years ago. An M 6.6-6.7 hit near this epicenter
on July 21, 2021. An earthquake of M 6.7 also occurred about 300 km southwest
of today's epicenter on October 16." (April 4, 2023, August 26, 2024)
It is of some interest that the event in Panama on August 26, 2024 (M 5.8)
occurred 18 hours before the last earthquake in the world of M>=6.8 - an M 6.9 in Tonga.
Today's event in Panama of M 5.8 occurred 21 hours before the quiet seismicity
in the world was broken in Cuba.
NEIC reported this earthquake of M 3.1 in Northern California was felt with intensity up to I in the area(s) of Northern California at Arcata and Carlotta.
NEIC reported this earthquake of M 4.6 in Vanuatu was felt with intensity up to IV in the area(s) of Vanuatu in Vila Shefa.
NEIC reported this earthquake of M 3.6 in Southern Alaska was felt with intensity up to IV in the area(s) of Southern Alaska in Eagle River, Grdwood, Palmer, Nikolai, Anchorage, Chugiak, Wasilla, Elmendorf AFB.
EMSC reported light shaking in Wasilla, Eagle River and Anchorage, Alaska.
NEIC reported this earthquake of M 4.6 in Southern California was felt with intensity up to III in the area(s) of Southern California in Calipatria, Desert Center, Twentynine Palms, Desert Hot Springs, and II in Thermal, Moreno Valley and Mountain Center.
NEIC reported this earthquake of M 4.2 in Dominican Republic was felt with intensity up to IV in the area(s) of Dominican Republic in Otra Banda, La Altagracia and La Romana and II in Santo Domingo and Boca de Yuma and in Puerto Rico at San Sebastian.
NEIC reported this earthquake of M 2.9 in Utah was felt with intensity up to I in the area(s) of Utah in Moab.
NEIC reported this earthquake of M 4.2 in Chile was felt with intensity up to II in the area(s) of Antofagasta, Chile at Sierra Gorda.
GUC reported the following:
10-11-2024 22:10 29.80 69.57 118 4.9 IV Coquimbo at Coquimbo, La Higuera, La Serena and III in Paiguano; and in Atacma with III in Alto del Carmen, Vallenar and II in Copiapo and Tierra Amarilla, Chile.
10-11-2024 22:56 21.46 69.82 32 4.0 III Tarapaca at El Loa and II in Antofagasta at Tocopilla, Chile.
EMSC reported this earthquake of M 4.7 in Buryatiya, Russia was felt with intensity up to IV in the area(s) of Buryatiya, Russia in Angarsk, Irkutsk and Solnechnyy.
EMSC reported this earthquake of M 4.4 in Luzon, Philippines was felt with intensity up to IV in the area(s) of Luzon, Philippines in Quezon City and Angono and Rizal.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-11 00:00 UT 16.4N 110.6E 45 kts West of Northern Philippines and Taiwan
Typhoon Yinxing (TS 24W) continued today in the area west of the northern Philippines with winds up to 45 kts and is likely to track to the south and west for the next several days. Enhanced seismicity is possible in Southeast Asia as this storm makes landfall.
TROPICAL DEPRESSION 27W
---- ------- ---------- -------- ----- ------ ------- ---------------
TS 27W 2024-11-11 00:00 UT 12.3N 138.0E 045 kts South of Mariana Islands
TS 27W continued today in the area Southwest of the Mariana Islands with winds up to 45 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the southern Mariana Islands and Guam as this storm is in the area.
Hurricane Rafael is taking an unexpected track to the west with current winds up to 140 km, but NHC expects it to dissipate early next week without making landfall.
It is the first tropical storm or hurricane to take this path since Hurricane Kate which followed a similar path in 1985 and
these two storms are the strongest recorded in the Gulf in modern times.
Strong enhancement of seismicity in the Caribbean and areas of Central America
is still expected in the next day or two.
TYPHOON TORAJI
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH TORAJI 2024-11-11 00:00 UT 16.9N 121.0E 85 kts Central Philippines
Typhoon Toraji continued today in the area of central Philippines with winds up to 85 kts. This system is currently tracking to the West likely to make landfall in the central Philippines today (November 11). Moderate seismic enhancement is possible with this storm in the Philippines.
TROPICAL STORM MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MAN-YI 2024-11-11 00:00 UT 14.2N 152.2E 045 kts North of Mariana Islands
TS Man-yi (TD 25W) continued today in the area northeast of the Mariana Islands with winds up to 45 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area.
Three M-class solar flares were recorded on November 10, 2024. These are listed below with data from SWPC
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
7750 0004 0015 0023 M4.2 (November 10, 2024) 2.5E-02
Tonga M 4.7 00:46 UT
Talaud M 4.0 00:58 UT
7870 1151 1206 1214 M9.4 (November 10, 2024) 1.7E-03
Buryatiya M 4.7 12:11 UT
Southern Idaho M 2.6 12:20 UT
7900 1418 1439 1502 C5.7 (November 10, 2024) 1.2E-02
Tajikistan M 4.5 14:18 UT
Volcano Is. M 4.8 14:57 UT
7920 1551 1558 1606 C6.7 (November 10, 2024) 5.6E-03
Cuba M 5.9 15:51 UT M 6.8 16:49 UT
Kermadec Is. M 5.5 15:46 UT
Panama M 4.2 16:00 UT
Guatemala M 4.2 16:09 UT
7970 2009 2021 2034 M4.9 (November 10, 2024) 4.0E-02
Afghanistan M 4.2 20:31 UT
Virgin Is. M 3.3 20:13 UT
GEOMAGNETIC FIELD: minor storms November 11 active November 12-13, 2024. Solar M-flare chance: 70% X-class: 30% proton storm: 15%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 25 35 10 16:00 6 121 231
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 10, 2024
A strong to major earthquake occurred today in the region of southern Cuba with M 6.8.
NEIC reported it was felt with damage in Cuba with intensity VIII in Rio Cauto, Granma and Cacocum, Holguin and VI in Bayamo, Santiago de Cuba, V in Guisa and in Jamaica at Saldings, and Cascade, Hanover. It was also felt in Jamaica with intensity IV in May Pen, Mona, Kingston, Saint Andrew, Saint Ann, Saint James, and with intensity III throughout the Dominican Republic, in Florida at Miami and Boca Raton. Al so felt with light intensity in Netherlands Antilles, Florida, Texas, Grand Cayman Islands, Chiapas, Mexico, with light shaking possibly as far as Pennyslvania, New York, and Georgia.
An M 5.9 several hours before the mainshock was reported by NEIC to have been felt with intensity V in Cuba at Camaguey and Jiguani and in Jamaica with IV. Lesser intensity was reported felt in Jamaica, Cuba, Cayman Islands and in portions of the east coast of the U.S. such as Florida to New Jersey.
EMSC reported moderate shaking in Jamaica at Saint Andrew, Manchester, Camaguey, Puerto Rico.
A minor tsunami May occurred with this M 6.8 earthquake but has not been documented at this time. The last earthquake in the world of M>=6.8 occurred was when an M 6.9 hit Tonga on
August 25, 2024 more than 2.5 months ago. This is a very long drought of earthquakes
for the world. Today's earthquake of M 6.8 in Cuba occurred within minutes of
local solar noon and accompanied a moderate solar flare. It was likely triggered
by strong tidal stresses combined with SFE from the flare, both of which maximize near
this hour. The only earthquake within about 300 km of this epicenter in the past
35 years occurred as a major M 7.7 on January 28, 2020 and may be the strongest
aftershock to date of that event. At the time this summary noted:
"An M 7.7 south of Cuba today was widely felt throughout the Caribbean and southeastern U.S. But if was far enough from land that there were no major damages or casualties reported with this event. An M 6.0 aftershock in the Cayman Islands followed.
Tsunamis are common with earthquake of this magnitude but it was probably strike-slip motion
which does not lift the surface greatly and, while the Pacific Tsunami Warning Center warned of a possible tsunami of 1-3 feet, but such a tsunami was not observed.
This is the strongest earthquake in the world since an M 8.0 in Northern Peru-Brazil on May 26, 2019 and two of M 8.2 and 7.9 in the Tonga-Fiji area in August and September, 2018. This is the strongest event within about 500 km of this epicenter since an M 7.9 in 1900 and an M 7.8 on June 14, 1899. Lesser earthquakes within the area of about 500 km from this epicenter have most
recently occurred on February 4, 2007 (M 6.2); and on May 25, 1992 (M 6.8). Three events
about 200 km to the west occurred on June 27, 1995 (M 6.0); September 9, 2004 (M 6.0) and
December 14, 2004 (M 6.8). The strongest historical events in the area occurred
on June 21, 1900 (M 7.9); June 14, 1899 (M 7.8) and in 1692 (M 7.7-7.8)." (January 28, 2020)
This summary has been following the recently enhanced seismicity
in the Dominican Republic, Haiti, Puerto Rico and Cuba since Hurricane Rafael
passed through this area during the past week. In previous update this
summary noted for example:
"An unusual earthquake of M 4.3 occurred in the eastern Caribbean Sea today. NEIC reported it was felt with intensity V in West Haiti at Caberet and Delmas and II in Aruba at Desarmes with lesser shaking in West Haiti at Petionville and Thomazeau and in San Juan de la Maguana, Dominican Republic.
This earthquake is the strongest in the Caribbean Sea within about 200 km in at
least 35 years. It occurred after a major hurricane of Category III-IV passed
over this epicenter over the past several days as noted in previous issues of
this summary as:
"Hurricane Rafael (TC 18) continued today in the area North of Cuba winds up to 105 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Jamaica and Cuba and may hit near the Texas-Mexico border as a hurricane or tropical storm around November 12-14. Regional seismicity enhancement could occur in eastern Mexico with this storm but is not expected to be strong" (November 7, 2024, November 8, 2024)
and
"Hurricane Rafael is taking an unexpected track to the west with current winds up to 140 km, but NHC expects it to dissipate early next week without making landfall.
It is the first tropical storm or hurricane to take this path since Hurricane Kate which followed a similar path in 1985 and
these two storms are the strongest recorded in the Gulf in modern times.
Strong enhancement of seismicity in the Caribbean and areas of Central America
is still expected in the next three days." (November 9, 2024)
Concern for enhanced seismicity in the Caribbean and Cuba at this time was first published
in this summary when Hurricane Rafael made landfall in Cuba on November 5-6, 2024
at the location of today's M 6.8 as:
"TS Rafael (TC 18) continued today in the area North of Cuba winds up to 80 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Jamaica and Cuba and may near the Texas-Mexico border as a hurricane or tropical storm around November 12-14. ..." (November 5-6, 2024)
The activity in Cuba was preceded by a moderate earthquake of M 4.7 in Puerto Rico. NEIC reported it was felt with intensity up to V in Trujillo Alto, Puerto Rico and in Saint Thomas, Virgin Islands and III-IV in Puerto rico at San Juan, Toa Baja, Fajardo, Guaynabo, and in the Virgin Islands at Frederiksted and Road Town Tortola, British Virgin Islands.
Today's earthquake in Cuba followed a moderately strong earthquake south of
this epicenter in Panama of M 5.8 and a foreshock of M 5.6. NEIC reported the mainshock was felt with intensity IV in Chiriqui, Panama at Los Lomas and Los Algarrobos and II-III in David, Gualaca, and in Cerro Sombrero Ngobe Bugle.
The forshock was felt in Chiriqui, Panama with V in Canoa and Gualaca and IV in Los Lomas and Los Algarrobos and III throughout much of southern Panama.
An unusual earthquake of M 5.0 also occurred today in Mongolia. NEIC reported it was
felt with intensity III in Mongolia at Bajanhongor by many. This earthquake
occurred at the start of an M9.8 class solar flare and may have been triggered by SFE from this flare.
This epicenter is near the antipode of the M 6.2 in Aisen, Chile yesterday (see previous update).
The last earthquake within about 250 km of today's epicenter of M>=5.0 occurred
on April 13, 2011. At the time this summary noted the antipodal relation between
Mongolia and Chile as:
"An earthquake of M 5.4 in the region near the antipode of the great M 8.8
in Chile of February 2010 hit today in the area of Central Mongolia. It
was not reported felt in this remote epicentral zone. This is the strongest
event in the region since June 15, 2006. No other events of larger magnitude
have hit the area in the past 21 years. A moderate earthquake in Chile
of M 5.4 which was widely felt in that region occurred 39 minutes prior
to the Mongolian earthquake. This is the time it takes the PPS phase
to move from Chile to Mongolia, and this may represent a dynamic triggering." (April 13, 2011)
NEIC reported this earthquake of M 4.7 in Tonga was felt with intensity up to II in the area(s) of Tonga at Tofoa-Toloua, Tongatapu.
NEIC reported this earthquake of M 2.6 in Malibu, California was felt with intensity up to III in the area(s) of Malibu, California in Agoura and II in Malibu, Calabasas, Thousand Oaks, Westland Village, Thousand Oaks, Oak Park, Walnut and Moreno among others.
NEIC reported this earthquake of M 3.2 in New Mexico was felt with intensity up to III in the area(s) of New Mexico iin Atoka and Artesia.
NEIC reported this earthquake of M 2.8 in Southern Texas was felt with intensity up to V in the area(s) of Southern Texas in Helotes, and San Antonio and III in Cotulla, Dilley.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-10 00:00 UT 17.1N 111.5E 45 kts West of Northern Philippines and Taiwan
Typhoon Yinxing (TS 24W) continued today in the area west of the northern Philippines with winds up to 45 kts and is likely to track to the south and west for the next several days, It is tracking to the northwest. Enhanced seismicity is expected in the region of Central and northern Philippines and Taiwan as it moves through this area.
TROPICAL DEPRESSION 27W
---- ------- ---------- -------- ----- ------ ------- ---------------
TS 27W 2024-11-10 00:00 UT 12.4N 139.2E 040 kts South of Mariana Islands
TS 27W continued today in the area Southwest of the Mariana Islands with winds up to 40 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the southern Mariana Islands and Guam as this storm is in the area.
HURRICANE RAFAEL
---- ------- ---------- -------- ----- ------ ------- ---------------
HURR RAFAEL 2024-11-10 00:00 UT 26.1N 91.3W 35 kts Central Caribbean
Hurricane Rafael (TC 18) continued today in the area of the central Caribbean winds up to 35 kts and is likely to track to the south for the next several days, Enhanced seismicity is expected around November 12-14 in northeastern Mexico and Yucatan. Regional seismicity enhancement could occur in eastern Mexico with this storm but is not expected to be strong.
Hurricane Rafael is taking an unexpected track to the west with current winds up to 140 km, but NHC expects it to dissipate early next week without making landfall.
It is the first tropical storm or hurricane to take this path since Hurricane Kate which followed a similar path in 1985 and
these two storms are the strongest recorded in the Gulf in modern times.
Strong enhancement of seismicity in the Caribbean and areas of Central America
is still expected in the next three days.
TROPICAL DEPRESSION TORAJI (26W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TD TORAJI 2024-11-10 00:00 UT 16.4N 122.3E 100 kts Central Philippines
TD Toraji continued today in the area east of central Philippines with winds up to 100 kts. This system is currently tracking to the West likely to make landfall in the central Philippines around November 11. Moderate seismic enhancement is possible with this storm.
TROPICAL STORM MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MAN-YI 2024-11-10 00:00 UT 15.2N 153.9E 050 kts North of Mariana Islands
TS Man-yi (TD 25W) continued today in the area northeast of the Mariana Islands with winds up to 50 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area.
A tropical cyclone may also be forming north of Dominican Republic. It is currently located near 22N 71W with winds up to 30 kts. It could enhance seismicity in the region of Haiti and the Dominican Republic while in the region.
GEOMAGNETIC FIELD: minor storms November 11 active November 10 and 12-13, 2024. Solar M-flare chance: 80% X-class: 35% proton storm: 15%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 32 48 24 13:00 6 176 221
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 9, 2024
The strongest earthquake in the world today was an M 6.2 off the coast of Aisen, Chile. It was associated with a series of smaller foreshocks and aftershocks. NEIC reported this event was felt with intensity II in Aisen at Coihaique and in Puerto Montt, Los Lagos, Chile.
While an M 6.1 hit near this epicenter on November 13, 2012 today's event is
the strongest within about 250 km of this epicenter in at least 35 years. At
the time of the November, 2012 event this summary noted:
"The earthquake off Chile near Aisen was most probably triggered by a C1.0
solar flare which was first observed at the same time that that earthquake
ocurred (04:31 UT). An earthquake of M 4.0 in Coquimbo, Chile followed about
a minute later and was also probably triggered by flare 2250. This is made
more probable as the flare and earthquakes occurred within minutes of solar
midnight in Chile. The mainshock was not reported felt as it occurred
too far offshore. The M 6.0 off the coast of Chile near Aisen is preceded by only one earthquake in the
general region of M>=6 in the past five years. An event of M 6.2 hit about
300 km to the northwest of today's epicenter on May 18, 2012. That earthquake
was closely associated with the last eclipse, a solar eclipse on May 20, 2012
and with a strong change in geomagnetic field strength, as was today's." (November 13, 2012) The
The strongest earthquake in the U.S. or Canada was an M 5.0 in Yukon Territory, Canada. NEIC reported this earthquake of M 4.9-5.0 in northern Yukon Territorym Canada was felt with intensity up to V in the area(s) of northern Yukon Territory, Canada at Dawson City.
A foreshock hours earlier of M 4.1 was reported by NEIC to have been felt near Dawson City, Canada with intensity up to IV.
The last earthquake with M>=5.0 within about 300 km of today's event in
Yukon was recorded by NEIC on December 22, 2017 with M 5.0 and prior to that on Seeptember 24, 2005 with
M 5.1.
The earthquake in the Yukon Territory of Canada reported in the previous summary
was felt lightly in the epicentral area according to Earthquakes Canada. That agency
also recalibrated the magnitude at M 5.9, the largest in the area in at least
25 years. The report in the previous summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 5.0 in the northern
Yukon Territory, Canada. There were no felt reports for this earthquake but it is
likely that an earthquake of this size in this region would have been felt by
local inhabitants. The last earthquakes within about 250 km of this epicenter in
the Yukon occurred on July 21, 1996; March 1, 1995 and January 5, 1991 all with M 5.0." (December 22, 2017)
Two moderate earthquakes also occurred today in the central Andreanof Islands, Aleutians, Alaska. These events of M 4.8 and M 4.7 were reported to have been felt with intensity up to V in Adak, Alaska.NEIC reported this earthquake of M in was felt with intensity up to IV in the area(s) of
The current eruption of Mount Lewotobi Laki-Laki continued today in Flores, Indonesia. To date a number of eruptions
have followed a major eruption of November 4, 2024. Today's eruption sent ash up to 10 km. The initial eruption on November 3 killed at least 9, caused at least 6000 to evacuate and damaged more than 2000 homes and businesses.
NEIC reported this earthquake of M 5.1 in Ecuador was felt with intensity up to III in the area(s) of Ecuador in Puyo, Pastaza and Cuenca, Azuay.
NEIC reported this earthquake of M 2.7 in Northern California was felt with intensity up to II in the area(s) of Northern California in Susanville.
NEIC reported this earthquake of M 4.0 in Italy was felt with intensity up to IV in the area(s) of Italy at San Severo, Apuline and Casacalenda, Molise.
NEIC reported this earthquake of M 2.9 in Central California was felt with intensity up to III in the area(s) of Central California in Aromas, Watsonville and II in Salinas, Marina, Pleasanton, Gilroy and San Juan Bautista.
NEIC reported this earthquake of M 3.0 in Pedro Bay Alaska was felt with intensity up to IV in the area(s) of Pedro Bay Alaska in Anchorage.
NEIC reported this earthquake of M 4,2 in the Caucasus, Russia was felt with intensity up to IV in the area(s) of the Caucasus, Russia in Alagir and Nalchik Kabardino-Balkarija, Russia.
NEIC reported this earthquake of M 4.7 in Eastern Turkey was felt with intensity up to IV in the area(s) of Eastern Turkey in Gaziantep and Sutanbeyli, Istanbul.
EMSC reported moderate intensity shaking in eastern Turkey at Camii, Kebir, Izzet Pasa, Olgunlar, Yeni, Universite, Cayacira, Saray, Baris, Mezopotamya, Bagcilar, Firat, Kayapinar, Donumlu, Aziziye. Yenisehir, Cilesiz, Erzincan, Batman, Karsiyaka, Nur among others.
EMSC reported this earthquake of M 4.5 in Kamchatka, Russia was felt with intensity up to IV in the area(s) of Kamchatka, Russia in Petropavlovsk-Kamchatsky.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-09 00:00 UT 18.9N 114.3E 135 kts West of Northern Philippines and Taiwan
Typhoon Yinxing (TS 24W) continued today in the area west of the northern Philippines with winds up to 135 kts and is likely to track to the south and west for the next several days, It is tracking to the northwest. Enhanced seismicity is expected in the region of Central and northern Philippines and Taiwan as it moves through this area.
TROPICAL STORM MAN-YI (DEPRESSION 25W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MAN-YI 2024-11-09 00:00 UT 14.4N 158.8E 044 kts North of Mariana Islands
TS Man-yi (TD 25W) continued today in the area northeast of the Mariana Islands with winds up to 45 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area.
HURRICANE RAFAEL
---- ------- ---------- -------- ----- ------ ------- ---------------
HURR RAFAEL 2024-11-09 00:00 UT 25.0N 90.8W 65 kts Northwest of Cuba
Hurricane Rafael (TC 18) continued today in the area Northwest of Cuba winds up to 65 kts and is likely to track to the south for the next several days, Enhanced seismicity is expected around November 12-14 in northeastern Mexico and Yucatan. Regional seismicity enhancement could occur in eastern Mexico with this storm but is not expected to be strong.
Hurricane Rafael is taking an unexpected track to the west with current winds up to 140 km, but NHC expects it to dissipate early next week without making landfall.
It is the first tropical storm or hurricane to take this path since Hurricane Kate which followed a similar path in 1985 and
these two storms are the strongest recorded in the Gulf in modern times.
Strong enhancement of seismicity in the Caribbean and areas of Central America
is still expected in the next three days.
TROPICAL DEPRESSION TORAJI (26W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TD TORAJI 2024-11-09 00:00 UT 14.5N 131.6E 040 kts North of Mariana Islands
TD Toraji continued today in the area east of central Philippines. This system is currently tracking to the West likely to make landfall in the central Philippines around November 12. Moderate seismic enhancement is possible with this storm.
A tropical cyclone may also be forming north of Dominican Republic. It is currently located near 22N 71W with winds up to 30 kts. It could enhance seismicity in the region of Haiti and the Dominican Republic while in the region.
GEOMAGNETIC FIELD: active November 9-11, 2024. Solar M-flare chance: 85% X-class: 35% proton storm: 15%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 11 7 7 21:00 4 167 231
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 8, 2024
An unusual earthquake of M 4.3 occurred in the eastern Caribbean Sea today. NEIC reported it was felt with intensity V in West Haiti at Caberet and Delmas and II in Aruba at Desarmes with lesser shaking in West Haiti at Petionville and Thomazeau and in San Juan de la Maguana, Dominican Republic.
This earthquake is the strongest in the Caribbean Sea within about 200 km in at
least 35 years. It occurred after a major hurricane of Category III-IV passed
over this epicenter over the past several days as noted in previous issues of
this summary as:
"Hurricane Rafael (TC 18) continued today in the area North of Cuba winds up to 105 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Jamaica and Cuba and may hit near the Texas-Mexico border as a hurricane or tropical storm around November 12-14. Regional seismicity enhancement could occur in eastern Mexico with this storm but is not expected to be strong" (November 7, 2024)
Hurricane Rafael is taking an unexpected track to the west with current winds up to 140 km, but NHC expects it to dissipate early next week without making landfall.
It is the first tropical storm or hurricane to take this path since Hurricane
NEIC reported this earthquake of M 2.6 in Montana was felt with intensity up to III in the area(s) of Montana in Seeley Lake and II in Coolin, Idaho.
NEIC reported this earthquake of M 2.7 in Northern California was felt with intensity up to II-III in the area(s) of Northern California at Napa and II in Fortuna.
NEIC reported this earthquake of M 4.4 in Southern Peru was felt with intensity up to IV in the area(s) of Southern Peru in Tarata, Tacna.
NEIC reported this earthquake of M 4.3 in Guatemala was felt with intensity up to II in the area(s) of Guatemala in Palin Escuintla.
NEIC reported this earthquake of M 3.5 in Central California was felt with intensity up to IV in the area(s) of Central California in Stovepipe Wells.
NEIC reported this earthquake of M 3.4 in Southern California was felt with intensity up to IV in the area(s) of Southern California at Borrego Springs, Valley Center, San Marcos, Fallbrook, El Cajon, Oceanside, Spring Vallley and Los Angeles.
NEIC reported this earthquake of M 3.7 in The Dominican Republic was felt with intensity up to IV in the area(s) of The Dominican Republic in Miches and Otra Banda La Altagracia.
NEIC reported this earthquake of M 5.0 in Ica, Peru was felt with intensity up to V in the area(s) of Central Peru at Vista Alegre; IV in Los Aquijes, Santiago and III in Acari, Arequipa, Chincha Alta, Nazca and Lima.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-08 00:00 UT 18.8N 115.0E 125 kts West of Northern Philippines and Taiwan
Typhoon Yinxing (TS 24W) continued today in the area west of the northern Philippines with winds up to 125 kts and is likely to track to the south and west for the next several days, It is tracking to the northwest. Enhanced seismicity is expected in the region of Central and northern Philippines and Taiwan as it moves through this area.
TROPICAL DEPRESSION 25W
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 25W 2024-11-08 00:00 UT 13.8N 159.5E 040 kts North of Mariana Islands
TD 25W formed today in the area northeast of the Mariana Islands with winds up to 40 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of the northern Mariana Islands as this storm is in the area.
HURRICANE RAFAEL
---- ------- ---------- -------- ----- ------ ------- ---------------
HURR RAFAEL 2024-11-08 00:00 UT 24.8N 89.9W 70 kts Northwest of Cuba
Hurricane Rafael (TC 18) continued today in the area Northwest of Cuba winds up to 70 kts and is likely to track to the south for the next several days, Enhanced seismicity is expected around November 12-14 in northeastern Mexico and Yucatan. Regional seismicity enhancement could occur in eastern Mexico with this storm but is not expected to be strong.
A tropical cyclone may be forming east of central Philippines. This system is currently located at 15N 133E and tracking to the West likely to make landfall in the central Philippines next week. Moderate seismic enhancement is possible with this storm.
A tropical cyclone may also be forming north of Dominican Republic. It is currently located near 22N 71W with winds up to 30 kts. It could enhance seismicity in the region of Haiti and the Dominican Republic while in the region.
GEOMAGNETIC FIELD: active November 8-10, 2024. Solar M-flare chance: 85% X-class: 35% proton storm: 15%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 11 7 11:00 5 164 239
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 7, 2024
Moderately strong to strong earthquakes occurred today with M 5.8-5.9 in the areas of
Central Peru, Fiji, the Volcano Islands and Papua New Guinea.
The event in the Volcano Islands of M 5.8 was not reported by NEIC to have been felt.
The M 5.9 in Fiji was felt by a surprisingly large number of residents of Fiji. NEIC reported intensity IV in Central Fiji at Suva, III in Lami, Savusave; II in Nausori, Tuboru and perhaps as far as Wellington, New Zealand.
Although NEIC did not provide specifics on the felt activity associated with an M 5.9
in Papua New Guinea, that organization did suggest it was felt with intensity V in the area of Kokopo, PNG.
A moderately large earthquake also occurred in the Mid-Indian Ridge today with M 5.5. It was not reported felt in this remote area. The antipode of this epicenter is in Wyoming which may see a minor earthquake ast this time.
NEIC reported this earthquake of M 5.0 in Ica, Peru, an aftershock of the M 5.7 on November 6, 2024, was felt with intensity up to III in the area(s) of Ica, Peru in Nazca, Los Aquijes, Ica and Chincha Alta.
NEIC reported this earthquake of M 2.9 in NEVADA was felt with intensity up to III in the area(s) of NEVADA in Pahrump and Las Vegas and in Big Bear City, California.
NEIC reported these earthquakes of M 5.0 and 4.9 in Taiwan were felt with intensity up to V in the area(s) of Taiwan at in Taiwan at Hualien; IV in Fenglin, Lotung, Ilan; and II-III in Chutung, Hsinchu, Puli, Nantou, Shalu, Taichung, Kaohsiung and possible in Longuan, China.
EMSC reported moderate shaking in the Central Distric and the districts of Nantun, Qishan, and in Zhudong Township.
It was probably triggered by stesses associated with the strong Typhoon Yingxing
which was approaching this epicenter at the time of these earthquakes as noted
in previous issues of this summary:
"Typhoon Yinxing (TS 24W) continued today in the area east of the Central Philippines with winds up to 100 kts and is likely to track to the north and west for the next several days, It is tracking to the northeast. Enhanced seismicity is expected in the region of Central and northern Philippines as it moves through this area.
NEIC reported this earthquake of M 3.0 in Southern California was felt with intensity up to II in the area(s) of Southern California in San Clemente.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-07 00:00 UT 18.6N 121.5E 140 kts Northern Philippines and Taiwan
Typhoon Yinxing (TS 24W) continued today in the area of the northern Philippines with winds up to 140 kts and is likely to track to the north and west for the next several days, It is tracking to the northwest. Enhanced seismicity is expected in the region of Central and northern Philippines and Taiwan as it moves through this area.
HURRICANE RAFAEL
---- ------- ---------- -------- ----- ------ ------- ---------------
HURR RAFAEL 2024-11-07 00:00 UT 21.7N 85.6W 105 kts North of Cuba
TS Rafael (TC 18) continued today in the area North of Cuba winds up to 105 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Jamaica and Cuba and may near the Texas-Mexico border as a hurricane or tropical storm around November 12-14. Regional seismicity enhancement could occur in eastern Mexico with this storm but is not expected to be strong.
The new moon arrived at 12:47 UT on November 1, 2024. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and/or geomagnetic effects cam help promote strong to major earthquakes and such an event may be expected in the next week.
GEOMAGNETIC FIELD: minor storms November 7, active November 8-9 Solar M-flare chance: 80% X-class: 35% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 11 19 10 08:00 6 155 260
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 6, 2024
A moderately strong to strong earthquake occurred today with M 5.7 in the areas of
Central Peru. NEIC reported widely felt in Central and southern Peru with maximum intensity VI in Peru at Huancavelca, Huancayo, Nuevo Imperial, Lima; IV in Pampas; and II-III in Lircay, Chincha Alta, Acobamba, Santa Maria, Nicolas de Pierola, Arequipa, Ayacucuo, San Luis, Lima.
EMSC reported strong intensity shaking in Peru at Ica, Asia, Chorrillos, Barranco, San Isidro, and Lima.
This is the strongest earthquake in central Peru within about 250 km of this
epicenter since an M 5.9 on June 23, 2021. At the time this summary noted:
"A moderately strong earthquake of M 5.8 shook areas of central Peru today. It was reported by NEIC with intensity VII in Peru in Lima at Mala; VI in Chica, Micolas de Pereola, V in Nuevo Imperia, San Luis, Lima and IV in Santa Maria, Ricardo, Huancayo and Matucana.
This earthquake occurred within about an hour of local solar midnight and was probably
promoted by high tidal stresses which maximize near this hour. The area near
the coast of western South America is expected to see higher than normal seismicity
in the next week due to the timing of the upcoming full moon as noted in this summary:
...
Today's event in Peru is the strongest within about 200 km of this epicenter
since an M 6.1 on March 15, 2014. An M 6.9 on August 24, 2014 occurred about 350 km
to the outheast on August 24, 2014. A great earthquake of M 8.0 hit this region on August 15, 2007.
That quake was extremely damaging in the area ..." (June 23, 2021)
A pair of earthquakes of M 5.7-5.9 also hit this region on October 28 and 29, 2022
about 260 km south of today's epicenter as reported in this summary at the time as:
"Two moderately strong earthquakes of M 5.6-5.9 hit off the coast of central Peru today.
The mainshock of M 5.9-6.0 was reported by NEIC to have been felt with intensity II-III in Ica. Peru at Ica and Pisco and in San Luis Lima Provincias, Peru with intensity II.
NEIC reported the M 5.8-5.9 aftershock was felt with intensity III in Ica Peru at Vista Alegre and Pisco.
A foreshock of to the second event of M 5.8 of M 5.3 was reported felt with intensity II in Ica, Peru.
Hours earlier a foreshock (M 4.9) to the entire sequence was felt with intensity
IV in Lima and III in San Luis, Peru. The Press reported light shaking and damage
in the coast of Central Peru area. The last earthquake within about 200 km of
these mainshocks in Peru with M>=5.9 occurred on March 15, 2014 with M 6.1." (October 29, 2024)
The strongest earthquake in the U.S. or Canada today was an M 4.8 in Hawaii. NEIC reported it was widely felt in the island of Hawaii with intensity V at Hawaii National Park, Kailua Kona, Kurtistown, Pahala, Volcano;IV in Captain Cook, Hauula, Hawi, Hilo, Holualoa, Naalehu, Paauilo, Pahoa, III in Hakalau, Honaunau, Honokaa, Honomu, Waikoloa, Kamuela, Keaan, Kalakekua, Kihei, Laupahoehoe, Mountain View, Ninole, Ookala, Papaaloa, Papaikou, Pepeekeo, Kailua, Kapaau, Lahaina, and Honolulu.
This events was felt with strong intensity throughout the island of Hawaii with particular note waking many at Pahala, Naalehu, Hawaiian Ocean View, Captain Cook, Volcano, Mountain View, Kailua, Hilo, Pepeekeo, Waikoloa, as a thunderous shake in Kamuela, Honokaa. It follows a period of three days of torrential rains in Hawaii. This event occurred near local solar midnight in Hawaii with the start of the U.S.
Election Day. The rainfall was associated with the dissipation of Tropical Storm Lane
as described in previous issues of this summary:
"TS Lane continued today in the area Southeast of Hawaii with winds up to 35 kts and is likely to track to the north and west for the next several days, It is tracking to the northwest. Enhanced seismicity in the region of Hawaii as this storm is in the region. Enhanced seismicity in Hawaii is expected around November 2-5." (November 2-4, 2024)
This event in Hawaii is the strongest in Hawaii since an M 5.7 on February 9, 2024 and an M 5.1 on December 5, 2023.
At the time this summary noted:
"The strongest earthquake in the U.S. or the world today was an M 5.7 in the
Mauna Loa region of Hawaii (initially given as M 6.3). NEIC reported
it was felt as far as Honolulu and throughout the island of Hawaii with intensity
up to VII. Foreshocks of M 2.9 and 3.0 were also reported felt in Pahala, Hawaii
with intensity up to IV. EMSC reported strong to violent shaking in Hawaii at
Naalehu, Mountain View (with oud earthquake nose) Kealakekua, Fern Acres, Keaau, Pahoa, Hilo, Kailua Kona, Pepeekeo, Honokaa, Wailea, Wailuku, Maui, Lahaina, Honolulu, Kailua, Kaneohe, Jbphh, r.Minor damage which included items being thrown from shelves
and minor damage to structures was reported which included cracked walls. This is the strongest
earthquake in Hawaii since an M 6.2 on October 10, 2021 and an M 6.9 on
May 4, 2018 - the largest in Hawaii in the past 35 years. the only other event in
Hawaii with M>=6.2 in this time period was an M 6.7 on October 15, 2006. At the time of the October, 2021 event this summary noted:
A strong earthquake of M 6.2 shook most of the state of Hawaii, U.S. today. It was reported with maximum intensity VI in Naalehu; V in Hawaii National Park, Captain Cook, Honaunau, Volcano, Mountain View, IV in Pahala, Holualoa, Pahoa, Kealakekua with lesser shaking as far to the west as Waimea.
There have been only two earthquakes in Hawaii with M>=6.2 in the past 30 years - both
north of today's epicenter in central and northern Hawaii Island - on May 4, 2018
with M 6.9 and as an M 6.7 on October 15, 2006. Today's earthquake occurred near the Loi'hi Seamount south of Hawaii and is not
directly associated with the current major eruption of Kilauea volcano to the north.
The shaking caused some doors to open and some items to be thrown from shelves
in businesses. No major damage or casualties were reported and a tsunami does not
appear to have been generated with this earthquake. The earthquake occurred within minutes of the maximum of a geomagnetic storm at local solar noon and
was probably promoted by high tidal stresses associated with the new moon and the geomagnetic storm, which stresses maximize near this hour, as
noted in this and previous issues of this summary" (February 9, 2024)
Today's event may have have been promoted by strong tidal stress with the
new moon of November 1, 2024 which maximize at this hour.
NEIC reported this earthquake of M 3.1 in Northern California was felt with intensity up to II in the area(s) of Northern California at Shelter Cove.
NEIC reported this earthquake of M 4.7 in Tajikistan was felt with intensity up to II in the area(s) of Tajikistan at Navabad, Karotegin and Sovetskiy, Khatlon.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-06 00:00 UT 16.9N 126.5E 100 kts East of Central Philippines
Typhoon Yinxing (TS 24W) continued today in the area east of the Central Philippines with winds up to 100 kts and is likely to track to the north and west for the next several days, It is tracking to the northeast. Enhanced seismicity is expected in the region of Central and northern Philippines as it moves through this area.
TROPICAL STORM RAFAEL (CYCLONE 18)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS RAFAEL 2024-11-06 00:00 UT 21.7N 80.6W 080 kts North of Cuba
TS Rafael (TC 18) continued today in the area North of Cuba winds up to 80 kts and is likely to track to the west for the next several days, Enhanced seismicity is expected in the region of Jamaica and Cuba and may near the Texas-Mexico border as a hurricane or tropical storm around November 12-14. Regional seismicity enhancement could occur in eastern Mexico with this storm.
The new moon arrived at 12:47 UT on November 1, 2024. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and/or geomagnetic effects cam help promote strong to major earthquakes and such an event may be expected in the next week.
GEOMAGNETIC FIELD: active November 6 minor storms November 7 active November 8. Solar M-flare chance: 75% X-class: 25% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 11 19 10 10:00 5 149 245
A strong Gamma Ray Burst was recorded by SWIFT on November 5, 2024 at 16:06:04 UT (#241105A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
A strong Gamma Ray Burst was recorded by SWIFT on October 2, 2024 at 00:50:22 UT (#241002A). A preliminary UVOT Magnitude was assigned to this GRB of V>19.8. The last GRB with UVOT of equal or greater value occurred on November 11, 2023 with UVOT V=19.85.
November 5, 2024
A volcanic eruption of Mount Lewotobi, Laki Laki occurred today in Flores, Indonesia. A series
of strong eruptions occurred which destroyed a number of homes and a Catholic convent for nuns
in the region. At least 10 people are known to have died in these eruptions which
began near local solar midnight. It may have been triggered by strong tidal stresses with the
new moon of November 1 which maximize near this hour. Ash was sent up to 7000 feet into the air.
An M 4.7 occurred in central Philippines today. NEIC reported it was felt with intensity VI in the Philippines Cagayan Valley in Minuri and II in Dicamay, Tuding, Cordillera and San Mateo, Southern Tagalog.
PHIVOLCS reported it was felt with intensity IV in Aurura at Dilasag; III in Casiguran and I in Dinalungan and II in Dinapigue, Isabela.
This earthquake was probably promoted by the passage of Typhoon Yinxing which
passed near this epicenter today about the time of this event as reported
in the previous summary:
"Typhoon Yinxing (TS 24W) continued today in the area east of the Central Philippines with winds up to 85 kts and is likely to track to the north and west for the next several days, It is tracking to the northeast. Enhanced seismicity is expected in the region of Central and northern Philippines as it moves through this area." (November 4, 2024)
An M 4.9 also occurred in southern Mindanao, Philippines and was reported felt with intensity II in Mawab, Mindanao which may have been promoted by Tyhoon Yinzing.
EMSC reported this event was felt with intensity IV in Lingig and city of Bislig, Surigao del Sur and III in Cateel and Boston, Davao Oriental, Mindanao, PI.
NEIC reported this earthquake of M 4.4 in Central Greece was felt with intensity up to IV in the area(s) of Central Greece in Ahaia Greece at Demenika and III in Kato Mazarakion and in Attiki, Greece with intensity II-III in Kallithea and Vari.
NEIC reported this earthquake of M 3.2 off the coast of Northern California was felt with intensity up to IV in the area(s) of Northern California in Kneeland.
NEIC reported this earthquake of M 4.6 in SE Honshu, Japan was felt with intensity up to II in the area(s) of SE Honshu, Japan at Hadano and Kawasaki, Kanagawa and in Wako, Saitama.
EMSC reported mild shaking in Fujisawa City and in Urayasu City, Chiba.
NEIC reported this earthquake of M 3.1 in Southern California was felt with intensity up to V in the area(s) of Southern California at Warner Springs and Palm Desert; IV in Anza, Temecula and II-III in White Water, Homeland, Beaumont, Menifee, Sun City, Vista, Riverside, San Bernardino, San Diego, Palm Desert, Indian Wells, Rancho Mirage, Borrego Sprints, Hemet, Idyllwild, Desert Hot Springs.
EMSC reported this earthquake of M 4.3 in Kazakhstan was felt with intensity up to IV in the area(s) of Kazakhstan in Alatau, Talgar, Kendala, Bayterek, Bolek, Zhanashar, Panfilov, Belbulaq, Almaty among others.
EMSC reported this earthquake of M 2.4 off the coast of San Francisco, California was felt with intensity up to II in the area(s) of San Francisco, California in San Francisco.
TYPHOON YINXING (TROPICAL STORM 24W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TYPH YINXING 2024-11-05 00:00 UT 16.9N 126.5E 100 kts East of Central Philippines
Typhoon Yinxing (TS 24W) continued today in the area east of the Central Philippines with winds up to 100 kts and is likely to track to the north and west for the next several days, It is tracking to the northeast. Enhanced seismicity is expected in the region of Central and northern Philippines as it moves through this area.
TROPICAL STORM RAFAEL (CYCLONE 18)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS RAFAEL 2024-11-05 00:00 UT 16.7N 77.6W 045 kts South of Jamaica
TS Rafael (TC 18) continued today in the area south of Jamaica winds up to 45 kts and is likely to track to the north and west for the next several days, It is tracking to the northwest. Enhanced seismicity is expected in the region of Jamaica and Cuba and may hit Louisiana late this week as a tropical storm or Hurricane with strong rainfall. Hurricane warnings and watches are in effect for areas near Jamaica for the next two days.
The new moon arrived at 12:47 UT on November 1, 2024. Longitudes which are sub-solar at this time area near 10 West and those which are anti-solar (local solar noon) are near 170 East longitude. These include, in the west the areas of Iceland and western Europe and portions of the central mid-Atlantic near the equator and in the east areas of the New Zealand/Tonga/Fiji/Kermadec and Solomon and Vanuatu Islands, Kamchatka and Northern Japan and the Kurils among others. These include areas where strong tidal effects and/or geomagnetic effects cam help promote strong to major earthquakes and such an event may be expected in the next week.
GEOMAGNETIC FIELD: unsettled November 5 active November 6 minor storms November 7. Solar M-flare chance: 75% X-class: 25% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 14 20 11 10:00 5 191 242
A strong Gamma Ray Burst was recorded by SWIFT on November 1, 2024 at 05:41:45 UT (#241101A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 18:34:20 UT (#241030B). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 30, 2024 at 05:48:03 UT (#241030A). A preliminary UVOT Magnitude of V=13.71 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 26, 2024 at 22:42:32 UT (#241026A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 25, 2024 at 01:36:50 UT (#241025A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 10, 2024 at 10:05:14 UT (#241010A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on October 6, 2024 at 21:51:58 UT (#241006A). A preliminary UVOT Magnitude was assigned to this GRB of V>17.4.
MODERATELY LARGE QUAKE IN CHIAPAS, MEXICO WITH STRONG SOLAR FLARE
EARTHQUAKE SUMMARY FOR OCTOBER 25, 2024
A strong X-class of X2.0 occurred today starting at about 05:50 UT on October 26 and lasting for several hours and maximizing near 07:30 UT. An estimate of the parameters from SWPC for this event follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2380 0550 0730 1000 X1.8 (October 26, 2024) 5.1E-01
2380 0632 0719 0756 X1.8 (Ocbober 26, 2024) 8.9E-01
Colorado M 3.4 06:29 UT
El Salvador M 4.3 06:54 UT
Kerguelen Islands M 5.2 07:23 UT
This is the second X-class flare in the past two weeks - since an X3.3 on October, 24, 2024 (#7930)
The strongest earthquake in the world today was an M 5.8 in Chiapas, Mexico. NEIC reported maximum intensity V in Chiapas at Mazatan and Frontera Hidalgo with IV shaking in Guatemala at Ayutla San Marcos and Olintepeque, Quezaltenango and II-III shaking in Ocos, San Marcos, Guatemala City and Santa Catarina Pinula and in Mexico at Colonia Alvaro, Obregon, Vicente Guerrero, Chihuahua, Acacoyagua. EMSC reported it was felt with moderate intensity in Guatemala City and Colonia Ls Floresta, Guatemala. It followed an M 1.1 solar flare (#2080) which occurred near local solar noon and my have been promoted by that flare (the strongest of the day) and strong tidal stresses which maximize near this hour. The last earthquake within about 150 km of this epicenter in Chiapas was an M 6.4 on May 12, 2024 and is probably an aftershock of that event. At the time this summary had noted:
"The strongest earthquake of the day was an M 6.4 near the Chiapas, Mexico-Guatemala border. NEIC reported it was felt with intensity up to VII in Brisas Barra de Suchiate, Mexico and in Quetzaltenango, Guatemala. EMSC reported strong shaking in Chiapas, Mexico at Tapachula de Cordova and Aordonez, Huixtla,
and in Guatemala at Mazatenango, Chimaltenango, Ciudad Palmares, Antigua Guatemala, San Lucas Sacatepequez, Residenciales Naciones Unidas, San Jose, Colonia Linda Vista, San Cristobal, Fuentes Del Valle, Guatemala City, Colonia Valles, De Vista Hermosa, and in San Salvador, El Salvador. The press reported minor damage but no casualties with this strongly felt earthquake. Today's earthquake of M 6.4 is the strongest within about 200 km of this epicenter since an M 6.4 on May 17, 2023 but the last of larger magnitude in this area was an M 6.6 on February 1, 2019 and an M 8.1 on September 8, 2017. At the time of the event in September 8, 2017 this summary noted the effect of strong solar flares on the triggering of this event as:
"A great earthquake of M 8.0 (EMSC) to 8.4 (UNAM) hit the area south of Oaxaca and Chiapas, Mexico today. It was felt widely from Guatemala City to Mexico City and as far north as Belize. This is the first earthquake in the world with M>=8.0 since an M 8.3 in Central Chile on September 16, 2015 and prior to that an M 8.2 on April 1, 2014 in the area of northern Chile. On average there is approximately two years between great earthquakes such as this. The last earthquake of M>=8.0 within about 300 km of today's epicenter occurred on August 6, 1942 and M 8.4 on September 23, 1902 and April 19, 1902. These were M 8.3-8.4 events. This earthquake had been anticipated in previous issues of this report because of several factors including the X9.3 solar flare yesterday, tidal stresses and the severe geomagnetic storms. It occurred within about an hour of local solar midnight, a time when these effects maximize. It is also directly west of Hurricane Irma." (May 12, 2024)
Forecast 166987 had expected this earthquake within about 100 km in the area of Guatemala and Chiapas, Mexico.
O: 25OCT2024 08:29:32 14.8N 93.9W ML=4.4 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 25OCT2024 14:46:23 14.1N 92.6W MW=5.8 EMSC OFFSHORE CHIAPAS, MEXICO
P: 26OCT2024 166987 15.0N 92.0W 3.5-5.2 AAAAA Guatemala
The strongest earthquake in the U.S. or Canada today was an M 4.5 in Central California near the Nevada border. NEIC reported maximum shaking of V in Nevada at Amargosa and IV in Death Valley, California with II-III felt intensity in Nevada at Beatty, Indian Springs, Pahrump, Las Vegas, Glenbrook. This continues a strong series of events in the region which began on October 24 following a strong X3.3 solar flare. Today's event occurred 20 minutes after the M 5.8 earthquake in Chiapas, Mexico (see above) and may have been triggered by S- or P- seismic waves from that source. In the previous issue of this summary the earlier M 4.7 had been discussed as:
"The strongest earthquake in the U.S. or Canada today was an M 4.7 in Central California near the Nevada border and Stovepipe, California. NEIC reported it was felt with intensity IV in California in Death Valley with II-III shaking in California at Shoshone, Ridgecrest, Baker, Woodlake, Ludlow, and in Nevada at North Las Vegas (IV), Henderson, Beatty, Amargosa, Pahrump, Las Vegas, Indian Springs, and as far as Carmichael, California. EMSC reported light rolling motion with this earthquake in Las Vegas, Nevada. This earthquake was preceded by a series light foreshocks including an M 4.1 and an M 3.5 about 5 minutes before the mainshock. The M 4.1 foreshock was reported by EMSC to have been felt in Beatty, Nevada with slight shaking. The foreshocks and mainshock occurred within minutes of local solar midnight and may have been triggered by Solar Flare Effects (SFE) from an M2-3-class flare (with parameters listed above) combined with strong tidal stresses which maximize near this hour.
Today's event in Central California is the strongest within about 100 km of this epicenter since an M 4.8 on August 19, 2020 and an M 4.7-4.8 on January 6, 2022. At the time this summary noted:
"A pair of earthquakes of M 4.8 preceded the aftershock off northern California today. The first event of M 4.8 near Mina, Nevada was reported by NEIC to have been felt with intensity II-III in Nevada at Luning, Silverpeak, Gabbs, Goldfield, Hawthorne, Round Mountain (IV), Tonopah (IV) and Glenbrook and in California at Bishop and Yosemite National Park. The second about 100 km to the south of the first, occurred about an hour before and may have helped trigger the aftershock off the coast of California. These earthquakes on the border between Central California and Nevada were reported felt with maximum intensity VI in California at Big Pine and III in Independence, Bishop, Benton, Kings Canyon National Park and in Nevada at Silverpeak, Goldfield and II in Mammoth Lakes, Shaver Lake and Dunlap, California. An M 2.2 foreshock occurred near local solar noon within about 25 km of this epicenter. The last earthquake of M>=4.8 within about 50 km of this epicenter occurred on February 14, 2015 about 30 km to the south of today's epicenter on February 14, 2015, the only such earthquake in the area in the past 30 years. An M 5.7 about 100 km northeast of today's M 4.8 occurred on August 1, 1999." (January 6, 2022)
"A moderate aftershock of M 4.8 also was widely felt in the Ridgecrest, California aftershock zone today. NEIC reported intensity II-III in California at Death Valley, Lone Pine, Ridgecrest, Trona, Inyokern, Shoshone, Three Rivers, Kings Canyon, Porterville, and Miramonte. This earthquake is located at 104 degrees from the M 6.9 in Samar, Philippines which occurred August 18. This is a distance at which surface energy from large earthquakes concentrates due to internal reflections and refractions in the earth and can help trigger or enhance seismicity at this distance from large sources of energy on the earth's surface. This is probably the case in this instance.
...
Today's M 4.7-4.8 is the strongest aftershock to date of the M 5.8 on June 24, 2020 but occurred about 50 km east of that epicenter and may represent a new epicenter in this seismic active area." (August 19, 2020, October 25, 2024))
Forecast 167078 had expected this earthquake series was likely around
October 25, 2024.
O: 25OCT2024 07:14:28 36.6N 117.1W ML=2.3 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 07:28:27 36.6N 117.1W ML=2.4 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 07:55:37 36.6N 117.1W Mw=3.3 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 08:00:33 36.6N 117.1W ML=2.8 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 08:05:10 36.6N 117.1W Mw=4.7 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 08:47:58 36.6N 117.1W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 12:42:25 36.6N 117.1W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 14:52:19 36.6N 117.1W ML=2.6 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 18:42:07 36.6N 117.1W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 15:04:23 36.5N 117.1W ML=4.4 EMSC CENTRAL CALIFORNIA
P: 25OCT2024 167078 35.9N 117.7W 2.5-4.9 AAAAA So. 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: 26OCT2024 01:19:07 33.7N 83.0E MB=4.3 EMSC WESTERN XIZANG
P: 27OCT2024 167093 30.0N 83.0E 3.8-5.4 ACAAA Xizang
O: 25OCT2024 23:54:08 37.5N 71.3E MB=4.5 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 27OCT2024 167045 36.0N 71.0E 3.8-5.2 ABAAA Hindu Kush/Pakistan
P: 28OCT2024 167045 38.0N 73.0E 3.8-5.4 AABAA Hindu Kush/Pakistan
O: 26OCT2024 03:37:31 39.9N 72.1E MB=4.1 EMSC KYRGYZSTAN
P: 28OCT2024 167045 38.0N 73.0E 3.8-5.4 ABAAA Hindu Kush/Pakistan
No significant (M>=5) or unusual earthquakes were reported in Asia today.
INDONESIA AND PHILIPPINES
O: 25OCT2024 19:50:57 1.1S 127.3E ML=4.1 EMSC KEPULAUAN OBI, INDONESIA
P: 27OCT2024 166957 4.0S 127.0E 4.0-5.4 ACAAA Ceram area
No significant (M>=5) or unusual earthquakes were reported in Indonesia or the Philippines today.
CENTRAL AND SOUTH AMERICA
O: 25OCT2024 21:55:34 7.6N 82.2W MB=4.7 EMSC SOUTH OF PANAMA
P: 30OCT2024 166944 5.0N 83.0W 3.5-5.0 BCAAA Costa Rica
O: 25OCT2024 17:36:30 10.0N 86.4W ML=4.0 EMSC OFF COAST OF COSTA RICA
P: 25OCT2024 166997 11.0N 86.0W 3.5-5.2 AAAAA Nicaragua
O: 26OCT2024 06:54:33 13.1N 89.9W ML=4.3 EMSC OFFSHORE EL SALVADOR
O: 26OCT2024 01:21:57 12.6N 88.2W MB=4.8 EMSC OFFSHORE EL SALVADOR
P: 28OCT2024 166997 12.0N 88.0W 3.5-5.5 AAAAA Nicaragua
NEIC reported this earthquake of M 4.8 in El Salvador was felt with intensity up to IV in the area(s) of El Salvador in Santiago de Maria, Usulutan.
O: 25OCT2024 14:46:23 14.1N 92.6W MW=5.8 EMSC OFFSHORE CHIAPAS, MEXICO
P: 26OCT2024 166987 15.0N 92.0W 3.5-5.2 AAAAA Guatemala
O: 25OCT2024 19:25:44 16.0N 97.7W ML=4.1 EMSC OAXACA, MEXICO
P: 29OCT2024 167002 16.0N 98.0W 3.5-5.3 BAAAA Oaxaca, Mexico
O: 25OCT2024 09:25:24 15.2N 94.5W ML=4.0 EMSC OFF COAST OF OAXACA, MEXICO
O: 25OCT2024 13:32:04 16.5N 95.2W ML=4.0 EMSC OAXACA, MEXICO
O: 25OCT2024 15:58:28 17.2N 94.5W ML=4.3 EMSC VERACRUZ, MEXICO
P: 25OCT2024 166983 17.0N 95.0W 3.5-5.3 AAAAA Chiapas, Mexico
O: 26OCT2024 04:47:01 18.3N 72.8W ML=3.5 EMSC HAITI REGION
P: 25OCT2024 167009 20.0N 71.0W 3.0-4.8 ABBAA Bahamas/No. Caribbean
O: 26OCT2024 05:40:20 18.6N 69.8W ML=3.3 EMSC DOMINICAN REPUBLIC
P: 27OCT2024 167005 18.0N 68.0W 3.4-5.4 AABAA Puerto Rico
O: 25OCT2024 15:54:53 19.0N 64.9W MD=3.5 EMSC VIRGIN ISLANDS REGION
O: 25OCT2024 11:17:49 19.2N 64.6W MD=3.9 EMSC VIRGIN ISLANDS REGION
O: 25OCT2024 21:45:08 19.2N 64.6W MD=3.2 EMSC VIRGIN ISLANDS REGION
O: 25OCT2024 22:12:25 19.2N 64.6W MD=3.4 EMSC VIRGIN ISLANDS REGION
P: 30OCT2024 166990 19.0N 65.0W 3.0-5.4 BAAAA Leeward Islands
O: 25OCT2024 14:35:25 19.2N 67.0W MD=3.7 EMSC PUERTO RICO REGION
O: 26OCT2024 06:28:07 19.2N 67.0W MD=3.4 EMSC PUERTO RICO REGION
P: 27OCT2024 167005 18.0N 68.0W 3.4-5.4 ABAAA Puerto Rico
O: 25OCT2024 21:03:09 18.8N 69.6W ML=3.0 EMSC DOMINICAN REPUBLIC
O: 26OCT2024 05:11:39 18.8N 69.5W ML=3.3 EMSC DOMINICAN REPUBLIC
O: 26OCT2024 00:03:12 19.7N 70.7W ML=3.0 EMSC DOMINICAN REPUBLIC
P: 25OCT2024 167009 20.0N 71.0W 3.0-4.8 AAAAA Bahamas/No. Caribbean
O: 25OCT2024 09:52:35 22.3S 70.1W MB=4.2 EMSC ANTOFAGASTA, CHILE
P: 26OCT2024 167196 23.0S 69.0W 4.0-5.4 AAAAA Coast No. Chile
O: 25OCT2024 08:29:32 14.8N 93.9W ML=4.4 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 25OCT2024 14:46:23 14.1N 92.6W MW=5.8 EMSC OFFSHORE CHIAPAS, MEXICO
P: 26OCT2024 166987 15.0N 92.0W 3.5-5.2 AAAAA Guatemala
AFRICA AND EUROPE
No significant (M>=5) or unusual earthquakes were reported in Europe today.
SOUTHWEST PACIFIC
O: 25OCT2024 14:01:31 19.3S 173.0W MB=5.3 EMSC TONGA
P: 27OCT2024 167188 19.0S 173.0W 4.0-5.8 AAAAA Tonga Islands
OCEAN RIDGES
No significant (M>=5) or unusual earthquakes were reported on Ocean Ridges today.
ZEALANDIA AND AUSTRALIA REGION
No earthquakes of M>=4 were recorded in the regions of Zealandia or Australia
today.
JAPAN AND KURIL ISLANDS
O: 26OCT2024 05:05:46 27.8N 139.6E mb=4.0 EMSC BONIN ISLANDS, JAPAN REGION
O: 25OCT2024 21:01:34 26.9N 140.4E MB=4.2 EMSC BONIN ISLANDS, JAPAN REGION
P: 31OCT2024 167010 25.0N 142.0E 4.0-5.5 CBBAA Bonin Islands
O: 25OCT2024 21:20:21 35.8N 139.4E MB=4.5 EMSC NEAR S. COAST OF HONSHU, JAPAN
P: 28OCT2024 167060 35.0N 141.0E 4.0-5.4 BAAAA Off East Coast Honshu
NEIC reported this earthquake of M 4.5 in SE Honshu, Japan was felt with intensity up to IV in the area(s) of SE Honshu, Japan in Tokyo at Tokyo, Musashino and Hino and in Saitama.
EMSC reported moderate shaking in Honshu, Japan at Nerima.
O: 25OCT2024 11:17:04 37.0N 142.2E MB=4.7 EMSC OFF EAST COAST OF HONSHU, JAPA
P: 28OCT2024 167060 35.0N 141.0E 4.0-5.4 BBAAA Off East Coast Honshu
U.S./CANADA*
WESTERN U.S./CANADA
CALIFORNIA
O: 26OCT2024 01:18:21 32.7N 115.4W ML=2.2 EMSC MEXICALI-CALEXICO AREA, CALIF.
O: 26OCT2024 01:17:23 32.7N 115.4W ML=2.8 EMSC MEXICALI-CALEXICO AREA, CALIF.
P: 25OCT2024 167066 32.9N 115.6W 2.5-4.7 AAAAA So. California
NEIC reported this earthquake of M 3.0 in Baja California was felt with intensity up to II in the area(s) of Baja California in Puebla and in California at Calexico and Indian Wells.
O: 25OCT2024 11:57:09 34.0N 116.8W ML=2.4 EMSC SOUTHERN CALIFORNIA
P: 27OCT2024 167070 33.4N 116.7W 2.5-4.6 AAAAA So. California
O: 25OCT2024 08:18:50 39.0N 123.4W MD=2.1 EMSC NORTHERN CALIFORNIA
P: 30OCT2024 167040 39.0N 123.1W 2.5-4.6 BAAAA Central California
O: 25OCT2024 11:04:08 41.0N 122.2W MD=2.0 EMSC NORTHERN CALIFORNIA
P: 25OCT2024 167120 40.0N 123.0W 2.5-4.6 AAAAA Northern California
O: 25OCT2024 11:13:36 41.0N 125.3W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 26OCT2024 167121 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
O: 25OCT2024 07:14:28 36.6N 117.1W ML=2.3 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 07:28:27 36.6N 117.1W ML=2.4 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 07:55:37 36.6N 117.1W Mw=3.3 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 08:00:33 36.6N 117.1W ML=2.8 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 08:05:10 36.6N 117.1W Mw=4.7 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 08:47:58 36.6N 117.1W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 12:42:25 36.6N 117.1W ML=2.1 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 14:52:19 36.6N 117.1W ML=2.6 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 18:42:07 36.6N 117.1W ML=2.2 EMSC CENTRAL CALIFORNIA
O: 25OCT2024 15:04:23 36.5N 117.1W ML=4.4 EMSC CENTRAL CALIFORNIA
P: 25OCT2024 167078 35.9N 117.7W 2.5-4.9 AAAAA So. California
O: 25OCT2024 20:32:47 38.8N 122.8W MD=2.0 EMSC NORTHERN CALIFORNIA
O: 25OCT2024 08:04:10 38.8N 122.7W MD=2.6 EMSC NORTHERN CALIFORNIA
P: 26OCT2024 167039 38.5N 122.7W 2.5-4.6 AAAAA Central California
ALASKA
O: 25OCT2024 08:53:23 58.7N 136.7W ML=3.1 EMSC SOUTHEASTERN ALASKA
O: 25OCT2024 08:53:23 58.7N 136.7W MB=3.1 ECAN OF JUNEAU, AK
P: 25OCT2024 167157 59.0N 136.0W 3.0-4.9 AAAAA Southeast Alaska
O: 25OCT2024 18:10:33 60.4N 150.3W ML=3.1 EMSC KENAI PENINSULA, ALASKA
P: 26OCT2024 167164 61.1N 150.2W 3.2-5.2 AAAAA Central Alaska
NEIC reported this earthquake of M 3.1 in Kenai, Alaska was felt with intensity up to II in the area(s) of Kenai, Alaska at Anchorage.
PACIFIC NORTHWESTERN U.S./WESTERN CANADA
O: 25OCT2024 15:41:50 47.4N 122.8W ML=2.3 EMSC PUGET SOUND REGION, WASHINGTON
P: 25OCT2024 167135 48.0N 123.0W 2.0-3.9 AAAAA Washington state, U.S.
O: 25OCT2024 11:20:53 66.1N 135.3W ML=2.9 EMSC NORTHERN YUKON TERRITORY, CANA
P: 25OCT2024 167170 66.9N 135.8W 3.0-4.6 AAAAA Northern Alaska
O: 24OCT2024 19:33:54 52.7N 132.1W MB=3.0 ECAN OF DAAJING GIIDS, BC
P: 25OCT2024 167144 53.0N 133.0W 3.0-4.9 AAAAA British Colombia
O: 24OCT2024 18:44:08 51.4N 130.9W MB=4.0 ECAN OF PORT HARDY, BC
P: 27OCT2024 167143 50.5N 130.4W 3.0-5.2 BAAAA British Colombia
ROCKY MOUNTAINS REGION
O: 25OCT2024 15:40:02 31.6N 104.5W ML=2.1 EMSC WESTERN TEXAS
O: 26OCT2024 04:52:07 31.7N 104.4W ML=2.1 EMSC WESTERN TEXAS
P: 27OCT2024 167064 32.6N 103.6W 2.0-4.2 AAAAA SW U.S.A
O: 26OCT2024 03:48:44 32.3N 109.3W ML=2.6 EMSC ARIZONA
P: 7NOV2024 167337 34.7N 111.0W 2.0-3.9 CCBAA SW U.S.A
NEIC reported this earthquake of M 2.6 in Arizona was felt with intensity up to III in the area(s) of San Simon, Arizona.
O: 26OCT2024 06:29:15 37.3N 104.5W ML=3.4 EMSC COLORADO
P: 25OCT2024 167042 37.0N 105.2W 2.0-3.9 AAAAA Colorado area
NEIC reported this earthquake of M 3.4 in Southern Colorado was felt with intensity up to IV in the area(s) of Southern Colorado in Trinidad.
EMSC reported moderate shaking in Trinidad, Colorado.
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.
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