May 21, 2025
Notable earthquakes and events:
A strong earthquake of M 6.3-6.6 occurred in the Papua New Guinea today. This event was not immediately reported felt through NEIC nor EMSC but was probably felt near Wewak in the area of northern Papua New Guinea.
The last earthquake in this area within about 200 km of this epicenter with M>=6.6
occurred on March 23, 2024 wotj M 6.9. At the time this summary noted:
"A major earthquake of M 6.9-7.0 occurred today in Papua New Guinea. NEIC reported to have been felt with intensity VIII in Ambunti, New Guinea.
EMSC reported intensity IV-V in Madang Province and light shaking in Goroka in Eastern Highlands Province, Papua, New Guinea.
Aftershocks of M 5.1 and 5.2 were also felt in New Buinea at Ambunti." (March 23, 2024)
It is likely that this event was promoted by the strong geomagnetic storm
of the past several days as it occurred at the sixth node (60 degrees) from
the South Geomagnetic Pole and at 90 degrees (node 4) from the north Geomagnetic
pole and was also at the seventh node (51.4 degrees) from the M 6.8 in Macquarie
Island of April 29. When the geomagnetic storm began this summary noted:
"The strongest geomagnetic storm since May 2, 2025 occurred today. AP reached 38 with high latitude A reaching 51. KP reached 6 mid-day and also early on May 18.
... Strong geomagnetic storms can help promoted enhanced seismicity at high
latitudes and at nodal distances from the south and north geomagnetic poles
in the first day(s) of the storm." (May 17, 2025)
Today's event in Papua New Guinea occurred near local solar midnight
and was probably promoted by tidal and geomagnetic effects which maximize
near this hour.
Forecast 172229 had expected today's event was likely within about 50 around May 18.
O: 20MAY2025 15:05:59 3.5S 144.9E MW=6.6 ANSS PAPUA NEW GUINEA
P: 18MAY2025 172229 4.0S 145.0E 4.0-5.4 BAAAA New Ireland
The antipode of this New Guinea event is at 4N 35W in the Central mid-Atlantic, an active seismic zone.
May 20, 2025
A moderately strong earthquake of M 5.6 occurred in the North Atlantic today. This event south of the Azores was not reported felt.
An M 3.8 earthquake shook the area north of Los Angeles, California near local solar noon today.
This was related to a solar flare that occurred when the area was at local solar midnight, 12 hours earlier
as noted in the previous issue of this summary:
"A moderately strong solar flare occurred at this writing. This flare of M3.2 class occurred near local solar midnight along the west coast of the U.S. and may enhance seismicity in that region in the next day." (May 19, 2025)
and
"A moderately strong solar flare occurred at this writing. This flare of M3.2 class occurred near local solar midnight along the west coast of the U.S. and may enhance seismicity in that region in the next day.
This interrupts a strong quiet period of solar flare activity and could
enhance seismicity at local solar noon in the general area at 35 East longitude of eastern Turkey and Iran and at solar midnight near 125 West longitude in the U.S. West Coast." (May 19, 2025)
An unusual M 5.0 also occurred today in the area of Georgetown, Saint Helena in the southern Atlantic Ocean. It occurred near local solar noon and may have been tidally promoted.
NORTH ATLANTIC
A moderately strong earthquake of M 5.6 occurred in the North Atlantic today. This event south of the Azores was not reported felt.
This is the largest earthquake in the North Atlantic within about 250 km of this
epicenter since an M 6.1 on January 4, 2022 and an M 6.2 on February 14, 2019.
At the time this summary noted:
"A strong earthquake also occurred in the North Atlantic Ocean today with M 6.1.
It followed a smaller earthquake to the southwest earlier in the day and occurred
near local solar midnight. It was probably promoted by strong tidal stresses with
the current new moon ..." (January 4, 2022)
and
"A strong earthquake of M 6.2, followed by an M 5.0 aftershock occurred in the Northern Mid-Atlantic Ridge today.
These events were not felt in this remote area and no tsunami was generated
or expected. This is located at an unusual epicenter south of the Azores.
The last earthquake within about 250 km of this epicenter in the Northern
Mid-Atlantic Ridge occurred as an M 6.3 on May 24, 2010. Other events in the
region in the past 30 years with equal or greater magnitude occurred in August, 1990 (M 6.3);
April, 1995 (M 6.2); April, 2003 (M 6.1)." (February 14, 2022)
Today's event in the North Atlantic may have been promoted by SFE from
a C6.0 solar flare which began about the time of the North Atlantic earthquake.
Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0510 0530 0540 C6.0 (May 20, 2025) 1.1E-03*
North Atlantic M 5.6 05:10 UT
Forecast 172322 had expected this area of the north Atlantic to see enhanced
seismicity around May 19, 2025.
O: 20MAY2025 05:11:33 35.4N 36.1W MW=5.6 EMSC NORTHERN MID-ATLANTIC RIDGE
P: 19MAY2025 172322 38.0N 32.0W 4.0-5.8 ACCAA No. Mid-Atlantic Ridge
Moderately large ocean ridge events also occurred today in the Ascension Island area of the South Atlantic (M 5.0) and in the Area near Easter Island
in the South Pacific. Data for these events follow:
Forecast 172232 had anticipated the M 5.0 in Ascension Island was likely around May 17.
O: 19MAY2025 14:01:21 7.1S 13.1W MB=5.0 EMSC ASCENSION ISLAND REGION
P: 17MAY2025 172232 5.0S 12.0W 4.0-5.6 ABAAA No. of Ascension Isl
Forecast 172440 had anticipated the M 5.4 in Eastern Island area was likely around May 14.
O: 19MAY2025 11:17:01 35.8S 103.0W MW=5.4 EMSC SOUTHEAST OF EASTER ISLAND
P: 14MAY2025 172440 35.0S 109.0W 4.0-5.7 BACAA So. East Pacific Rise
CENTRAL CALIFORNIA
An M 3.8 earthquake shook areas of Central California north of Los Angeles today. NEIC reported it was felt with maximum intensity V in California at Chatsworth and II in Los Angeles, Walnut, Ventura, with lesser shaking in Valencia and Castaic.
A light aftershock of M 2.5 occurred about 10 minutes after the mainshock. NEIC reported it was felt with intensity II in Chatsworth, Frazier Park, Redlands and Beverly Hills, California.
This M 3.8 is the strongest earthquake recorded in southern California within about
150 km of this epicenter since an M 3.9 on March 17, 2025 in Los Angeles, 125 km southeast of today's epicenter and the
strongest within about 100 km since an M 5.2 on August 7, 2024 (and an aftershock of M 4.4 on August8, 2024) near the same epicenter
as today's quake. It is the strongest aftershock since August, 2024. At the time
this summary noted:
"A moderately strong earthquake of M 5.2-5.4 occurred north of Los Angeles, California today in the Bakersfield area. NEIC reported intensity up to VII for this event with V in Bakersfield, Frazier Park; IV in Lamont, Arvin, Taft, Maricopa (VI), Shafter, Keene, Lebec, Tahachapi, Sosamond, McFarland, Caliente, Wasco, Ojai, Lake Hugues, New Cuyama, Castaic, Delano, Lancaster, Los Angeles and as far as Arizona, Oregon, Utah, Sonora, Mexico, and Washington State.
Minor damage was reported by the press with this earthquake. A strong series of
aftershocks followed including an M 4.5 about a minute after the mainshock which
was felt with intensity up to VI." (August 7, 2024)
The M 3.8 in California today had been expected in the previous issue of this summary.
When an M3.2 solar flare occurred near local solar midnight at this California
epicenter this summary noted immediately:
"A moderately strong solar flare occurred at this writing. This flare of M3.2 class occurred near local solar midnight along the west coast of the U.S. and may enhance seismicity in that region in the next day." (May 19, 2025)
and
"A moderately strong solar flare occurred at this writing. This flare of M3.2 class occurred near local solar midnight along the west coast of the U.S. and may enhance seismicity in that region in the next day.
This interrupts a strong quiet period of solar flare activity and could
enhance seismicity at local solar noon in the general area at 35 East longitude of eastern Turkey and Iran and at solar midnight near 125 West longitude in the U.S. West Coast." (May 19, 2025)
Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4400 0813 0821 0845 M3.2 (May 19, 2025) 1.1E-02
Central California M 3.8 19:09 UT
Easter Island M 5.4 11:17 UT
This solar flare was highly unusual, the largest in a very quiet solar flare
period over the past five days - since an M4.7 (#3480) on May 14, 2025.
The only other M-class flare since May 14, was an M 2.1 (#3690) on May 15.
This epicenter in Central California is at 102 degrees from the M 7.4 in the Drake Passage of May 2 and may have been promoted by energy from that source.
Forecast 172336 had expected this activity in Central California within
about 10 km of this epicenter was likely around May 16.
O: 19MAY2025 19:19:21 35.0N 119.0W ML=2.5 EMSC CENTRAL CALIFORNIA
O: 19MAY2025 19:09:19 35.0N 119.0W MW=3.8 EMSC CENTRAL CALIFORNIA
O: 19MAY2025 22:04:52 34.9N 119.0W ML=2.3 EMSC CENTRAL CALIFORNIA
O: 19MAY2025 19:11:07 35.0N 119.0W ML=2.5 EMSC CENTRAL CALIFORNIA
P: 16MAY2025 172336 34.9N 119.0W 2.5-4.8 BAAAA So. California
The strongest earthquake in the U.S. or Canada today was an M 4.4 in the Alaska Peninsula near Unimak, Alaska. NEIC reported it was felt with intensity III in King Cove and II in Sand Point, Alaska.
An aftershock of M 3.5 was felt with intensity II in Sand Point, Alaska.
Forecast 172408 had expected this event within about 25 km was likely around May 14.
O: 19MAY2025 15:18:58 54.4N 161.7W ML=3.5 EMSC ALASKA PENINSULA
O: 19MAY2025 15:06:35 54.4N 161.7W MW=4.4 EMSC ALASKA PENINSULA
P: 14MAY2025 172408 54.6N 161.7W 3.5-5.1 BAAAA Unimak Islands, Aleutians
NEIC reported an earthquake of M 2.5 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska in Anchorage.
NEIC reported an earthquake of M 3.4 in the Alaska Peninsula may have been felt with intensity up to II-III in the area(s) of the Alaska Peninsula with III in Anchorage and Wasilla.
NEIC reported an earthquake of M 5.1 south of Tonga was felt with intensity up to II-III in the area(s) of Tonga at Tofoa-Koloua, Tangatapu.
An unusual M 5.0 also occurred today in the area of Georgetown, Saint Helena in the southern Atlantic Ocean. It occurred near local solar noon and may have been tidally promoted.
PHIVOLCS reported an earthquake of M 4.9 in northern Mindanao, Philippines was felt with intensity up to IV in the area(s) of northern Mindanao, Philippines with III in Don Carlos, Impasug-ong, Kadingilan, Kalilangan, Kibawe, Manolo Fortich, Maramag and Quezon, Bukidnon; Montevist, Davao de Oror; Kapalong, Santo Tomas and City of Tagum, Davao del Norte; Antipas, Arakan, City of Kidapawan, Magpet and President Roxas, Cotabato and II in City of Cagayan de Oro, Davao de Oro, Daval del Nort, Davao del Sur.
EMSC reported an earthquake of M 4.1 in Central Afghanistan was felt with intensity up to IV in the area(s) of Central Afghanistan
No Tropical Cyclones are currently active.
A moderately strong solar flare occurred at this writing. This flare of M3.2 class occurred near local solar midnight along the west coast of the U.S. and may enhance seismicity in that region in the next day.
This interrupts a strong quiet period of solar flare activity and could
enhance seismicity at local solar noon in the general area at 35 East longitude of eastern Turkey and Iran and at solar midnight near 125 West longitude in the U.S. West Coast.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0510 0530 0540 C6.0 (May 20, 2025) 1.1E-03*
North Atlantic M 5.6 05:10 UT
4400 0813 0821 0845 M3.2 (May 19, 2025) 1.1E-02
Central California M 3.8 19:09 UT
Easter Island M 5.4 11:17 UT
Greece M 4.1 08:14 UT
4340 0024 0036 0050 C1.2 (May 19, 2025) 3.8E-04
Greece M 4.5 00:24 UT
4360 0419 0432 0439 C2.3 (May 19, 2025) 2.9E-04
Sumatra M 3.9 04:31 UT
4380 0528 0542 0553 C1.2 (May 19, 2025) 1.6E-03
Kermadec Islands M 5.3 05:48 UT
Los Angeles M 2.2 05:41 UT
Oaxaca M 4.2 05:56 UT
Sumatra M 4.7 05:59 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms May 19 active May 20-21. Solar M-flare chance: 25% X-class: 5% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 22 40 13 16:00 6 45 119
A strong Gamma Ray Burst was recorded by SWIFT on May 16, 2025 at 14:35:29 UT (#250516A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 20 05 11 2025 35.4 -36.1 5.6 NORTHERN MID-ATLANTIC RIDGE M107 SG151 T140 D95 MA159 Z159 NG59
05 20 04 53 2025 31.7 -104.4 2.8 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 20 04 27 2025 -15.7 -75.3 4.0 NEAR COAST OF CENTRAL PERU M169 SG97 T92 D41 MA98 Z96 NG109
05 20 03 29 2025 4.8 123.8 4.0 CELEBES SEA M31 SG68 T66 D127 MA64 Z63 NG81
05 20 03 13 2025 -21.1 -68.6 4.3 ANTOFAGASTA, CHILE M165 SG93 T96 D35 MA96 Z96 NG114
05 20 02 59 2025 38.8 -122.7 2.1 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 20 02 11 2025 19.0 -67.1 3.4 PUERTO RICO REGION M135 SG132 T111 D75 MA132 Z129 NG75
05 20 01 43 2025 -4.6 -76.8 4.0 NORTHERN PERU M161 SG107 T95 D52 MA107 Z104 NG98
05 19 23 58 2025 28.7 -14.5 2.3 CANARY ISLANDS, SPAIN REGION M96 SG139 T159 D96 MA153 Z160 NG65
05 19 23 43 2025 57.3 -156.8 3.4 ALASKA PENINSULA M80 SG131 T78 D133 MA117 Z109 NG31
05 19 23 31 2025 -31.3 -178.4 5.1 KERMADEC ISLANDS REGION M97 SG43 T11 D74 MA29 Z21 NG117
05 19 23 11 2025 8.8 127.0 4.2 MINDANAO, PHILIPPINES M32 SG72 T64 D130 MA67 Z65 NG77
05 19 22 28 2025 -24.9 -70.2 4.3 ANTOFAGASTA, CHILE M166 SG89 T93 D31 MA92 Z92 NG118
05 19 22 27 2025 -24.0 -66.9 4.6 JUJUY, ARGENTINA M164 SG90 T96 D32 MA94 Z94 NG117
05 19 22 26 2025 15.1 -61.3 3.5 DOMINICA REGION, LEEWARD ISLAN M136 SG130 T115 D71 MA131 Z129 NG79
05 19 22 04 2025 34.9 -119.0 2.3 CENTRAL CALIFORNIA M114 SG127 T75 D100 MA115 Z106 NG56
05 19 21 36 2025 -11.0 111.2 4.8 SOUTH OF JAVA, INDONESIA M36 SG55 T72 D112 MA55 Z58 NG97
05 19 21 14 2025 72.7 3.3 3.8 NORWEGIAN SEA M69 SG160 T127 D138 MA157 Z154 NG20
05 19 21 01 2025 73.3 7.4 3.9 GREENLAND SEA M68 SG159 T126 D139 MA156 Z152 NG19
05 19 20 49 2025 -2.6 138.7 4.3 PAPUA, INDONESIA M48 SG61 T49 D116 MA53 Z50 NG88
05 19 20 41 2025 30.3 57.5 3.3 EASTERN IRAN M35 SG111 T132 D134 MA118 Z123 NG59
05 19 20 34 2025 -23.9 -179.3 4.5 SOUTH OF FIJI ISLANDS M94 SG49 T6 D81 MA35 Z27 NG110
05 19 19 44 2025 -10.6 166.2 4.4 SANTA CRUZ ISLANDS M76 SG57 T21 D99 MA44 Z37 NG96
05 19 19 19 2025 35.0 -119.0 2.5 CENTRAL CALIFORNIA M114 SG127 T75 D101 MA115 Z106 NG56
05 19 19 11 2025 35.0 -119.0 2.5 CENTRAL CALIFORNIA M114 SG127 T75 D101 MA115 Z106 NG56
05 19 19 09 2025 35.0 -119.0 3.8 CENTRAL CALIFORNIA M114 SG127 T75 D101 MA115 Z106 NG56
05 19 18 03 2025 41.8 88.1 4.8 SOUTHERN XINJIANG, CHINA M20 SG111 T109 D158 MA111 Z112 NG45
05 19 16 59 2025 -6.3 152.1 4.4 NEW BRITAIN REGION, P.N.G. M61 SG58 T35 D109 MA47 Z43 NG92
05 19 16 46 2025 -5.8 148.4 4.3 NEW BRITAIN REGION, P.N.G. M58 SG58 T39 D110 MA48 Z44 NG91
05 19 16 28 2025 -37.8 -73.3 4.0 BIO-BIO, CHILE M161 SG76 T85 D19 MA79 Z79 NG131
05 19 16 20 2025 8.8 126.7 4.5 MINDANAO, PHILIPPINES M32 SG72 T65 D130 MA67 Z66 NG77
05 19 16 14 2025 -15.8 -74.5 4.0 NEAR COAST OF SOUTHERN PERU M169 SG97 T93 D41 MA98 Z97 NG109
05 19 15 41 2025 27.7 -18.2 3.2 CANARY ISLANDS, SPAIN REGION M99 SG139 T156 D94 MA153 Z159 NG66
05 19 15 27 2025 17.2 -68.5 3.8 DOMINICAN REPUBLIC REGION M138 SG130 T109 D73 MA130 Z126 NG76
05 19 15 24 2025 -24.5 -175.0 5.1 SOUTH OF TONGA M98 SG50 T4 D78 MA37 Z28 NG111
05 19 15 18 2025 54.4 -161.7 3.5 ALASKA PENINSULA M79 SG127 T75 D134 MA113 Z106 NG33
05 19 15 06 2025 54.4 -161.7 4.4 ALASKA PENINSULA M79 SG127 T75 D134 MA113 Z106 NG33
05 19 14 56 2025 36.0 -120.6 2.0 CENTRAL CALIFORNIA M112 SG127 T75 D102 MA115 Z106 NG55
05 19 14 40 2025 34.9 69.0 4.2 CENTRAL AFGHANISTAN M26 SG111 T123 D143 MA115 Z118 NG53
05 19 14 15 2025 -31.6 -68.7 4.4 SAN JUAN, ARGENTINA M163 SG83 T91 D25 MA86 Z87 NG125
05 19 14 01 2025 -7.1 -13.1 5.0 ASCENSION ISLAND REGION M110 SG105 T146 D65 MA118 Z124 NG100
05 19 12 11 2025 52.6 160.3 4.0 OFF EAST COAST OF KAMCHATKA M57 SG117 T75 D152 MA106 Z100 NG33
05 19 12 00 2025 28.4 87.2 4.3 WESTERN XIZANG M10 SG99 T106 D146 MA100 Z103 NG59
05 19 11 17 2025 -35.8 -103.0 5.4 SOUTHEAST OF EASTER ISLAND M158 SG70 T63 D31 MA68 Z65 NG127
05 19 11 17 2025 -18.0 -69.9 4.6 SOUTHERN PERU M166 SG96 T96 D38 MA98 Z97 NG111
05 19 11 17 2025 31.6 -104.6 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 19 11 07 2025 42.0 48.1 4.0 CAUCASUS REGION, RUSSIA M44 SG125 T138 D137 MA131 Z136 NG48
05 19 10 53 2025 31.6 -104.0 2.2 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 19 10 49 2025 32.1 -115.1 3.0 BAJA CALIFORNIA, MEXICO M118 SG126 T76 D97 MA115 Z107 NG59
05 19 10 07 2025 30.9 -115.5 3.1 BAJA CALIFORNIA, MEXICO M119 SG125 T75 D96 MA114 Z105 NG60
05 19 09 54 2025 19.0 -105.2 4.1 OFFSHORE JALISCO, MEXICO M134 SG119 T77 D81 MA110 Z103 NG73
05 19 09 45 2025 -18.7 -67.4 4.3 ORURO, BOLIVIA M163 SG95 T98 D38 MA98 Z98 NG112
05 19 09 26 2025 17.7 -95.0 4.1 VERACRUZ, MEXICO M139 SG122 T86 D77 MA115 Z109 NG74
05 19 08 14 2025 37.4 21.5 4.1 SOUTHERN GREECE M64 SG133 T158 D120 MA144 Z151 NG54
05 19 08 04 2025 1.2 97.2 4.7 NIAS REGION, INDONESIA M20 SG70 T89 D123 MA72 Z76 NG85
05 19 06 22 2025 18.9 -107.4 4.1 OFF COAST OF JALISCO, MEXICO M133 SG118 T75 D82 MA109 Z102 NG72
05 19 05 59 2025 1.1 97.1 4.7 NIAS REGION, INDONESIA M20 SG70 T89 D123 MA72 Z76 NG85
05 19 05 56 2025 15.7 -96.5 4.2 OAXACA, MEXICO M140 SG120 T84 D76 MA113 Z107 NG76
05 19 05 48 2025 -30.2 -177.2 5.3 KERMADEC ISLANDS, NEW ZEALAND M98 SG45 T10 D74 MA31 Z22 NG116
05 19 05 41 2025 34.3 -118.4 2.2 GREATER LOS ANGELES AREA, CALI M115 SG127 T75 D100 MA115 Z106 NG56
05 19 05 15 2025 59.4 -30.8 4.4 REYKJANES RIDGE M87 SG171 T132 D119 MA173 Z165 NG35
COMPARISON OF FORECASTS AND EARTHQUAKES
Following are the comparisons of the closest forecast to today's earthquakes and the listing of the earthquakes sorted by latitude. 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.
O: 19MAY2025 05:59:29 1.1N 97.1E MB=4.7 EMSC NIAS REGION, INDONESIA
O: 19MAY2025 08:04:21 1.2N 97.2E MB=4.7 EMSC NIAS REGION, INDONESIA
P: 15MAY2025 172217 2.0N 99.0E 4.0-5.4 BABAA So. Sumatera
O: 19MAY2025 20:49:17 2.6S 138.7E ML=4.3 EMSC PAPUA, INDONESIA
P: 19MAY2025 172233 2.0S 140.0E 4.0-5.4 AABAA Papua New Guinea
O: 20MAY2025 01:43:34 4.6S 76.8W ML=4.0 EMSC NORTHERN PERU
P: 12MAY2025 172231 6.0S 76.0W 4.0-5.4 CBAAA No. Peru
O: 20MAY2025 03:29:49 4.8N 123.8E ML=4.0 EMSC CELEBES SEA
P: 18MAY2025 172216 5.0N 126.0E 4.0-5.4 AABAA Mindanao, Philippines
O: 19MAY2025 16:46:44 5.8S 148.4E MB=4.3 EMSC NEW BRITAIN REGION, P.N.G.
P: 19MAY2025 172228 6.0S 150.0E 4.0-5.5 AABAA New Ireland
O: 19MAY2025 16:59:32 6.3S 152.1E MB=4.4 EMSC NEW BRITAIN REGION, P.N.G.
P: 18MAY2025 172227 7.0S 153.0E 4.0-5.4 AAAAA New Britain
O: 19MAY2025 14:01:21 7.1S 13.1W MB=5.0 EMSC ASCENSION ISLAND REGION
P: 17MAY2025 172232 5.0S 12.0W 4.0-5.6 ABAAA No. of Ascension Isl
O: 19MAY2025 16:20:15 8.8N 126.7E MB=4.5 EMSC MINDANAO, PHILIPPINES
O: 19MAY2025 23:11:18 8.8N 127.0E ML=4.2 EMSC MINDANAO, PHILIPPINES
P: 18MAY2025 172209 7.0N 124.0E 4.0-5.4 ABCAA Central Philippines
O: 19MAY2025 19:44:30 10.6S 166.2E MB=4.4 EMSC SANTA CRUZ ISLANDS
P: 20MAY2025 172424 10.0S 160.0E 4.0-5.4 AACAA No. of Santa Cruz Islands
O: 19MAY2025 21:36:09 11.0S 111.2E MW=4.8 EMSC SOUTH OF JAVA, INDONESIA
P: 18MAY2025 172429 11.0S 115.0E 4.0-5.6 AACAA So. of Indonesia
O: 19MAY2025 22:26:40 15.1N 61.3W ML=3.5 EMSC DOMINICA REGION, LEEWARD ISLAN
P: 17MAY2025 172255 15.0N 61.0W 3.0-5.4 AAAAA Leeward Islands
O: 19MAY2025 05:56:02 15.7N 96.5W ML=4.2 EMSC OAXACA, MEXICO
P: 17MAY2025 172265 15.0N 97.0W 3.5-5.3 AAAAA Oaxaca, Mexico
O: 20MAY2025 04:27:35 15.7S 75.3W ML=4.0 EMSC NEAR COAST OF CENTRAL PERU
O: 19MAY2025 16:14:35 15.8S 74.5W ML=4.0 EMSC NEAR COAST OF SOUTHERN PERU
P: 13MAY2025 172428 16.0S 74.0W 4.0-5.6 CAAAA So. Peru/Bolivia
O: 19MAY2025 15:27:39 17.2N 68.5W MD=3.8 EMSC DOMINICAN REPUBLIC REGION
P: 18MAY2025 172267 18.0N 66.0W 3.4-5.0 AACAA Puerto Rico
O: 19MAY2025 09:26:09 17.7N 95.0W ML=4.1 EMSC VERACRUZ, MEXICO
P: 18MAY2025 172251 17.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
O: 19MAY2025 11:17:08 18.0S 69.9W MB=4.6 EMSC SOUTHERN PERU
P: 15MAY2025 172428 18.0S 69.0W 4.0-5.7 BAAAA So. Peru/Bolivia
P: 17MAY2025 172428 18.0S 72.0W 4.0-5.6 AABAA So. Peru/Bolivia
O: 19MAY2025 09:45:31 18.7S 67.4W MB=4.3 EMSC ORURO, BOLIVIA
P: 15MAY2025 172428 18.0S 69.0W 4.0-5.7 BABAA So. Peru/Bolivia
O: 19MAY2025 06:22:11 18.9N 107.4W ML=4.1 EMSC OFF COAST OF JALISCO, MEXICO
O: 19MAY2025 09:54:06 19.0N 105.2W ML=4.1 EMSC OFFSHORE JALISCO, MEXICO
P: 17MAY2025 172252 18.0N 106.0W 3.5-5.4 AAAAA Coast of Jalisco, Mexico
O: 20MAY2025 02:11:25 19.0N 67.1W MD=3.4 EMSC PUERTO RICO REGION
P: 17MAY2025 172274 20.0N 67.0W 3.0-4.4 AAAAA Bahamas/No. Caribbean
O: 20MAY2025 03:13:02 21.1S 68.6W MB=4.3 EMSC ANTOFAGASTA, CHILE
P: 17MAY2025 172433 21.0S 68.0W 4.0-5.7 BAAAA Argentina
O: 19MAY2025 20:34:35 23.9S 179.3W MB=4.5 EMSC SOUTH OF FIJI ISLANDS
P: 17MAY2025 172446 27.0S 176.0W 4.0-5.6 ACCAA Tonga Islands
O: 19MAY2025 22:27:47 24.0S 66.9W MB=4.6 EMSC JUJUY, ARGENTINA
P: 15MAY2025 172433 24.0S 67.0W 4.0-5.8 BAAAA Argentina
O: 19MAY2025 15:24:11 24.5S 175.0W MB=5.1 EMSC SOUTH OF TONGA
P: 17MAY2025 172446 27.0S 176.0W 4.0-5.6 ACAAA Tonga Islands
O: 19MAY2025 22:28:44 24.9S 70.2W ML=4.3 EMSC ANTOFAGASTA, CHILE
P: 19MAY2025 172436 23.0S 69.0W 4.0-5.6 ABAAA Coast No. Chile
O: 19MAY2025 15:41:52 27.7N 18.2W ML=3.2 EMSC CANARY ISLANDS, SPAIN REGION
O: 19MAY2025 23:58:28 28.7N 14.5W ML=2.3 EMSC CANARY ISLANDS, SPAIN REGION
P: 14MAY2025 172277 28.0N 16.0W 3.0-4.7 BABAA Canary Islands
O: 19MAY2025 12:00:09 28.4N 87.2E MB=4.3 EMSC WESTERN XIZANG
P: 19MAY2025 172285 27.0N 92.0E 4.0-5.5 ABCAA Myanmar
O: 19MAY2025 05:48:31 30.2S 177.2W MW=5.3 EMSC KERMADEC ISLANDS, NEW ZEALAND
P: 17MAY2025 172455 31.0S 177.0W 4.0-5.5 AAAAA So. Kermadec Islands
O: 19MAY2025 20:41:26 30.3N 57.5E ML=3.3 EMSC EASTERN IRAN
P: 19MAY2025 172289 27.0N 56.0E 3.5-5.3 ACBAA So. Iran/Persian Gulf
O: 19MAY2025 10:07:58 30.9N 115.5W ML=3.1 EMSC BAJA CALIFORNIA, MEXICO
P: 17MAY2025 172331 32.9N 115.6W 2.5-4.6 ABAAA So. California
O: 19MAY2025 23:31:27 31.3S 178.4W MB=5.1 EMSC KERMADEC ISLANDS REGION
P: 19MAY2025 172456 31.0S 180.0W 4.0-5.5 AAAAA So. Kermadec Islands
O: 20MAY2025 04:53:16 31.7N 104.4W ML=2.8 EMSC WESTERN TEXAS
O: 19MAY2025 10:53:30 31.6N 104.0W ML=2.2 EMSC WESTERN TEXAS
O: 19MAY2025 11:17:41 31.6N 104.6W ML=2.0 EMSC WESTERN TEXAS
P: 17MAY2025 172329 32.5N 104.6W 2.0-3.9 AAAAA SW U.S.A
O: 19MAY2025 14:15:30 31.6S 68.7W ML=4.4 EMSC SAN JUAN, ARGENTINA
P: 15MAY2025 172449 31.0S 69.0W 4.0-5.8 BAAAA Central Chile
O: 19MAY2025 10:49:20 32.1N 115.1W ML=3.0 EMSC BAJA CALIFORNIA, MEXICO
P: 17MAY2025 172331 32.9N 115.6W 2.5-4.6 AAAAA So. California
O: 19MAY2025 05:41:48 34.3N 118.4W ML=2.2 EMSC GREATER LOS ANGELES AREA, CALI
P: 15MAY2025 172336 35.3N 118.6W 2.5-4.8 BAAAA So. California
O: 19MAY2025 14:40:10 34.9N 69.0E MB=4.2 EMSC CENTRAL AFGHANISTAN
P: 19MAY2025 172310 36.0N 69.0E 3.8-5.3 ABAAA Hindu Kush/Pakistan
O: 19MAY2025 19:19:21 35.0N 119.0W ML=2.5 EMSC CENTRAL CALIFORNIA
O: 19MAY2025 19:09:19 35.0N 119.0W MW=3.8 EMSC CENTRAL CALIFORNIA
O: 19MAY2025 22:04:52 34.9N 119.0W ML=2.3 EMSC CENTRAL CALIFORNIA
O: 19MAY2025 19:11:07 35.0N 119.0W ML=2.5 EMSC CENTRAL CALIFORNIA
P: 16MAY2025 172336 34.9N 119.0W 2.5-4.8 BAAAA So. California
O: 20MAY2025 05:11:33 35.4N 36.1W MW=5.6 EMSC NORTHERN MID-ATLANTIC RIDGE
P: 19MAY2025 172322 38.0N 32.0W 4.0-5.8 ACCAA No. Mid-Atlantic Ridge
O: 19MAY2025 11:17:01 35.8S 103.0W MW=5.4 EMSC SOUTHEAST OF EASTER ISLAND
P: 14MAY2025 172440 35.0S 109.0W 4.0-5.7 BACAA So. East Pacific Rise
O: 19MAY2025 14:56:11 36.0N 120.6W MD=2.0 EMSC CENTRAL CALIFORNIA
P: 17MAY2025 172326 35.6N 121.3W 2.5-4.5 AAAAA Off So. California
O: 19MAY2025 08:14:39 37.4N 21.5E ML=4.1 EMSC SOUTHERN GREECE
P: 18MAY2025 172319 39.0N 21.0E 3.0-4.6 AAAAA No. Greece
O: 19MAY2025 16:28:07 37.8S 73.3W ML=4.0 EMSC BIO-BIO, CHILE
P: 18MAY2025 172450 37.0S 73.0W 4.0-5.7 AAAAA Central Chile
O: 20MAY2025 02:59:25 38.8N 122.7W MD=2.1 EMSC NORTHERN CALIFORNIA
P: 1MAY2025 172024 38.8N 122.7W 2.5-4.8 AAAAA Central California
O: 19MAY2025 18:03:13 41.8N 88.1E MB=4.8 EMSC SOUTHERN XINJIANG, CHINA
P: 7MAY2025 172079 36.0N 93.0E 3.8-5.2 DCCAA Xizang
O: 19MAY2025 11:07:34 42.0N 48.1E MB=4.0 EMSC CAUCASUS REGION, RUSSIA
P: 16MAY2025 172361 40.0N 50.0E 4.0-5.7 BBBAA Kazakhstan
O: 19MAY2025 12:11:40 52.6N 160.3E MB=4.0 EMSC OFF EAST COAST OF KAMCHATKA
P: 18MAY2025 172394 52.0N 160.0E 4.0-5.6 AAAAA E. of Kamchatka
O: 19MAY2025 15:18:58 54.4N 161.7W ML=3.5 EMSC ALASKA PENINSULA
O: 19MAY2025 15:06:35 54.4N 161.7W MW=4.4 EMSC ALASKA PENINSULA
P: 14MAY2025 172408 54.6N 161.7W 3.5-5.1 BAAAA Unimak Islands, Aleutians
O: 19MAY2025 23:43:44 57.3N 156.8W ML=3.4 EMSC ALASKA PENINSULA
P: 16MAY2025 172389 54.7N 156.9W 3.5-5.3 BCAAA Alaska Peninsula
O: 19MAY2025 05:15:28 59.4N 30.8W MB=4.4 EMSC REYKJANES RIDGE
P: 8MAY2025 172129 59.0N 31.0W 4.0-5.5 DAAAA North Mid-Atlantic Ridge
P: 16MAY2025 172399 58.0N 32.0W 4.0-5.4 BBAAA North Mid-Atlantic Ridge
O: 19MAY2025 21:14:43 72.7N 3.3E MB=3.8 EMSC NORWEGIAN SEA
P: 15MAY2025 172420 72.0N 0.0E 3.0-4.9 BAAAA Norway
O: 19MAY2025 21:01:51 73.3N 7.4E MB=3.9 EMSC GREENLAND SEA
P: 16MAY2025 172420 74.0N 14.0E 3.0-4.7 BAAAA Norway
May 19, 2025
A pair of earthquakes of M 4.4 and M 4.8 occurred northeast of Lake Baykal, Russia in the the Chitsinitsa Oblast. These are within about 300 km of exact antipodal to the M 7.4 in the Drak Passage (M 7.4 May 2). Antipodal effects probably helped trigger these events.
A moderately strong solar flare occurred at this writing. This flare of M3.2 class occurred near local solar midnight along the west coast of the U.S. and may enhance seismicity in that region in the next day.
The strongest geomagnetic storm since May 2, 2025 continued today. AP reached 22 with high latitude A reaching 40. KP reached 6 mid-day and also early on May 18.
The last storm of similar disturbance occurred beginning on May 2, 2025 with AP 39 and
high latitude A of 65. Maximum Kp with that storm reached 7.
Strong geomagnetic storms can help promoted enhanced seismicity at high
latitudes and at nodal distances from the south and north geomagnetic poles
in the first day of the storm. For example the last major earthquake in the
world - an M 7.4 on May 2 in the Drake Passage - coincided with the storm of May 2.
At the time of the geomagnetic storm on May 2, this summary noted:
“A severe geomagnetic storm occurred today with maximum high latitude KP reaching
7 around 12:00-14:00 UT. The high latitude A for the day was 68. This is
the strongest geomagnetic storm at high latitudes since A reach 113 on January 1, 2025.
The sudden commencement storms of this type can trigger seismic activity
centered at nodal distances from the South and North Geomagnetic poles where
charged particles interact with the ionosphere and earth. So it should not be
surprising to frequent readers of this summary that a magnitude M 7.4 earthquake
occurred at the high latitude of 55S at the height of this geomagnetic storm
at a distance of 60.0 degrees (node 6) from the South Geomagnetic Pole." (May 2, 2025)
A pair of earthquakes of M 4.4 and M 4.8 occurred northeast of Lake Baykal, Russia in the the Chitsinitsa Oblast. These are within about 300 km of exact antipodal to the M 7.4 in the Drak Passage (M 7.4 May 2). Antipodal effects probably helped trigger these events.
The last earthquake of M>=4.7 within about 200 km of today's activity was an M 5.0
a year ago on May 24, 2024 bu the last of significantly larger magnitude was an M 5.5
on September 22, 2021. At the time this summary noted:
"A moderately strong M 5.5 also hit in southern Siberia today in the Chitinskaya Oblast' area.
It was not reported felt in this region. This is the strongest earthquake within
about 250 km of this epicenter since an M 5.6 on May 23, 2014. The strongest
event in the area in the past 30 years was an M 5.9-6.0 on August 21, 1994." (September 22, 2021)
Today's event is located within about 150 km of the antipode of the M 7.4 in the Drake Passage or May 2, 2025
and had been anticipated as an antipodal event at the time as:
"Antipodal (~180 degrees)
Drake Passage to Mongolia, Siberia" (May 2, 2025)
Today's activity near Laky Baykal, Russia began near local solar noon and
was likely promoted by tidal and geomagnetic activity with the strong geomagnetic
storm which peaked near the time of these events and which maximize effects
on the earth near this hour. Solar Flare 4190 (B8.2) was ending as this earthquake
in Russia occurred and may have helped trigger it through SFE.
Following is the SWPC data for this flare:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4190 0506 0520 0538 B8.2 (May 18, 2025) 1.4E-03
Russia M 4.3 05:52 UT
El Salvador M 4.0 05:52 UT
Jalisco M 4.2 05:10 UT
This epicenter is at 104 degrees from the M 7.6 in the Caribbean of February 8 , 2025
and may have been promoted by energy from that source.
Forecast 172405 had expected today's activity in Siberia was likely within about
200 km around May 16-20.
O: 18MAY2025 07:26:29 56.2N 117.4E MB=4.7 EMSC CHITINSKAYA OBLAST', RUSSIA
O: 18MAY2025 07:26:29 56.2N 117.4E MB=4.8 GSRAS CHITINSKAYA OBLAST', RUSSIA
O: 18MAY2025 05:52:19 56.3N 117.3E MB=4.3 EMSC CHITINSKAYA OBLAST', RUSSIA
P: 16MAY2025 172405 58.0N 121.0E 3.0-4.6 ABBAA So. Siberia
P: 20MAY2025 172405 52.0N 116.0E 3.0-4.7 ACAAA So. Siberia
The strongest earthquake in the the U.S. or Canada today was an M 4.5 south of Alaska.
This event was located at the third node (120 degrees) from the Macquarie Island
earthquake of M 6.8 of April 29 and was probably promoted by energy from that source.
Other earthquakes at this distance from Macquarie today occurred in western Texas.
An earthquake of M 4.5 last hit this area of the Gulf of Alaska as an M 4.5
on April 24, 2025 but the last of significantly larger magnitude within about 150
km of today's epicenter was an M 5.2 on October 3, 2007. Today's event
occurred within minutes of local solar midnight and may have been promoted
by tidal and/or geomagnetic effects which maximize near this hour.
Forecast 172410 had expected this earthquake was likely within about 100 km
around May 14, 2025.
O: 18MAY2025 09:55:43 58.2N 149.3W MW=4.5 EMSC GULF OF ALASKA
P: 14MAY2025 172410 59.0N 150.1W 3.2-5.1 AAAAA Central Alaska
NEIC reported an earthquake of M 4.9 in Mindanao, Philippines was felt with intensity up to II-III in the area(s) of Mindanao, Philippines with III in Balila and Panabo and II in Kisante, Dologon, Mailag, San Carlos, Davao and Mawab.
EMSC reported light to moderate shaking in Mindanao at Davao City, Cagayan De Oro, and Guinsiliban, Camiguin Island.
PHIVOLCS reported intensity III in Santo Tomas, Davao del Norte; Don Carlos, Impasug-ong, Kadingitan, Kibawe, Manolo Fortich , Maramag and Quezon, Bukidnon; Antipas, Arakan, City of Kidapawan, Magpet, and President Roxas, Cotabato and II in Cotabato at Banisltan, M'Lang, Matalam and Tulunan.
Forecast 172209 had expected this event in Mindanao was likely within about 200 km
of this epicenter around May 18.
O: 19MAY2025 03:41:29 7.5N 125.8E MB=4.9 EMSC MINDANAO, PHILIPPINES
P: 18MAY2025 172209 7.0N 124.0E 4.0-5.4 AAAAA Central Philippines
NEIC reported an earthquake of M 4.5 in Greece was felt with intensity up to II-III in the area(s) of Greece with V in Attiki at Amarousion; IV in Palaion, Faliron, III in Athens, Khalandrioin, Leontarion, Melissia, Nea Makri, Peuki, Pikermion and Vrilissia.
EMSC reported strong shaking in Greece at Paralia Politikon, Psachna, Drosia, Malesina, Chalkida, Chalcis, Vasiliko, Nea Lampsakos, Vathy, Arma, Malakonta, Arkitsa, Achladias, Skopelos, Oropos, Oinofyta, Thivaion among others
This activity in Greece is located at 144 degrees from the M 6.8 near Macquarie Island
of April 29, 2025 and may have been promoted by energy from that source. Other
moderate earthquakes at this distance from Macquarie Island today occurred as
an M 4.9 in Romania. It is also near the third node (120 degrees) from the
Drake Passage event of May 2 and could have been promoted by energy from that source.
Forecast 172293 had expected this activity within about 100 km was likely around
May 16-18, 2025.
O: 19MAY2025 00:23:32 38.7N 23.5E MW=4.5 EMSC GREECE
P: 16MAY2025 172293 39.0N 25.0E 3.0-4.7 BAAAA Aegean Sea
P: 18MAY2025 172293 38.0N 26.0E 3.0-4.7 AABAA Aegean Sea
NEIC reported an earthquake of M 4.1 in the Dodecanese Islands, Greece was felt with intensity up to II-III in the area(s) of the Dodecanese Islands, Greece at Lardos.
EMSC reported an earthquake of M 2.2 in Los Angeles, California was felt with intensity up to IV in the area(s) of Los Angeles, California at Sherman Oaks.
EMSC reported an earthquake of M 3.6 in Poland was felt with intensity up to IV in the area(s) of Poland in Gola, Rudna, Lubin, Glogow and Zukowice.
No Tropical Cyclones are currently active.
A moderately strong solar flare occurred at this writing. This flare of M3.2 class occurred near local solar midnight along the west coast of the U.S. and may enhance seismicity in that region in the next day.
This interrupts a strong quiet period of solar flare activity and could
enhance seismicity at local solar noon in the general area at 35 East longitude of eastern Turkey and Iran and at solar midnight near 125 West longitude in the U.S. West Coast.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0813 0821 0845 M3.2 (May 19, 2025) 1.1E-02
4190 0506 0520 0538 B8.2 (May 18, 2025) 1.4E-03
Russia M 4.3 05:52 UT
El Salvador M 4.0 05:52 UT
Jalisco M 4.2 05:10 UT
4270 1617 1627 1636 B9.6 (May 18, 2025) 1.2E-03
New Guinea M 4.0 16:16 UT
4280 1636 1642 1645 B8.4 (May 18, 2025) 4.2E-04
New Guinea M 4.6 16:51 UT
4290 1813 1828 1837 C1.0 (May 18, 2025) 1.4E-03
O'Higgins, Chile M 4.0 18:20 UT
Volcano Is. Japan, M 4.7 18:37 UT
4320 2209 2218 2225 B8.2 (May 18, 2025) 3.5E-04
4330 2303 2318 2333 C1.5 (May 18, 2025) 2.1E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms May 19 active May 20-21. Solar M-flare chance: 25% X-class: 5% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 22 40 13 16:00 6 45 119
A strong Gamma Ray Burst was recorded by SWIFT on May 16, 2025 at 14:35:29 UT (#250516A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 19 06 22 2025 18.9 -107.4 4.1 OFF COAST OF JALISCO, MEXICO M133 SG118 T75 D82 MA109 Z102 NG72
05 19 05 59 2025 1.1 97.1 4.7 NIAS REGION, INDONESIA M20 SG70 T89 D123 MA72 Z76 NG85
05 19 05 56 2025 15.7 -96.5 4.2 OAXACA, MEXICO M140 SG120 T84 D76 MA113 Z107 NG76
05 19 05 48 2025 -30.2 -177.2 5.3 KERMADEC ISLANDS, NEW ZEALAND M98 SG45 T10 D74 MA31 Z22 NG116
05 19 05 41 2025 34.3 -118.4 2.2 GREATER LOS ANGELES AREA, CALI M115 SG127 T75 D100 MA115 Z106 NG56
05 19 04 55 2025 -2.7 126.7 4.0 CERAM SEA, INDONESIA M38 SG61 T60 D119 MA56 Z55 NG88
05 19 04 16 2025 41.3 142.8 4.3 HOKKAIDO, JAPAN REGION M43 SG104 T73 D154 MA95 Z91 NG44
05 19 04 13 2025 36.8 -121.4 2.0 CENTRAL CALIFORNIA M111 SG128 T75 D103 MA115 Z106 NG54
05 19 03 46 2025 51.5 16.2 3.5 POLAND M66 SG146 T147 D128 MA155 Z159 NG41
05 19 03 41 2025 7.5 125.8 4.9 MINDANAO, PHILIPPINES M32 SG71 T65 D129 MA66 Z65 NG78
05 19 03 14 2025 37.2 141.4 4.6 NEAR EAST COAST OF HONSHU, M41 SG100 T71 D152 MA91 Z87 NG48
05 19 03 03 2025 40.4 -125.1 2.7 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 NG50
05 19 02 59 2025 34.0 -117.0 2.1 SOUTHERN CALIFORNIA M116 SG127 T76 D99 MA115 Z107 NG57
05 19 02 45 2025 3.9 95.9 4.2 OFF W COAST OF NORTHERN M17 SG73 T91 D125 MA75 Z79 NG82
05 19 01 32 2025 16.3 -94.4 4.0 OAXACA, MEXICO M140 SG121 T86 D76 MA115 Z108 NG76
05 19 01 30 2025 -7.7 130.0 4.3 KEPULAUAN BABAR, INDONESIA M44 SG56 T55 D114 MA50 Z50 NG93
05 19 00 23 2025 38.7 23.5 4.5 GREECE M63 SG133 T156 D122 MA143 Z150 NG53
05 19 00 11 2025 -16.2 -176.0 4.3 TONGA M94 SG58 T4 D86 MA44 Z35 NG102
05 18 23 58 2025 -18.5 -71.3 4.2 OFF COAST OF TARAPACA, CHILE M167 SG95 T94 D38 MA97 Z96 NG112
05 18 22 56 2025 37.5 -118.8 2.6 CENTRAL CALIFORNIA M112 SG129 T77 D103 MA117 Z108 NG53
05 18 19 59 2025 -14.2 167.4 4.7 VANUATU M78 SG54 T18 D95 MA41 Z33 NG100
05 18 19 15 2025 19.1 93.4 5.1 MYANMAR M3 SG88 T98 D139 MA89 Z92 NG68
05 18 18 37 2025 25.5 141.5 4.7 VOLCANO ISLANDS, JAPAN REGION M41 SG89 T62 D142 MA80 Z76 NG60
05 18 18 20 2025 -34.8 -71.7 4.0 LIBERTADOR O'HIGGINS, CHILE M163 SG79 T88 D22 MA82 Z83 NG128
05 18 17 56 2025 -10.7 41.4 4.4 COMOROS REGION M62 SG82 T133 D91 MA94 Z103 NG101
05 18 17 30 2025 33.7 90.7 4.5 XIZANG-QINGHAI BORDER REGION M12 SG103 T105 D152 MA103 Z105 NG53
05 18 17 12 2025 14.1 -92.3 4.1 OFFSHORE GUATEMALA M143 SG120 T87 D73 MA114 Z108 NG78
05 18 16 59 2025 13.9 -92.4 4.2 OFFSHORE GUATEMALA M143 SG120 T86 D73 MA114 Z108 NG78
05 18 16 51 2025 -6.2 147.6 4.6 EASTERN NEW GUINEA REG., P.N.G M57 SG58 T39 D110 MA48 Z44 NG91
05 18 16 15 2025 -1.9 137.4 4.0 NEAR N COAST OF PAPUA, INDONES M46 SG61 T50 D117 MA54 Z51 NG87
05 18 14 42 2025 10.8 -86.8 4.2 OFF COAST OF COSTA RICA M147 SG119 T91 D69 MA115 Z110 NG82
05 18 12 33 2025 13.9 -92.5 4.0 OFFSHORE GUATEMALA M143 SG120 T86 D73 MA114 Z108 NG78
05 18 12 07 2025 18.8 -68.9 4.0 DOMINICAN REPUBLIC M136 SG132 T109 D75 MA131 Z127 NG75
05 18 10 54 2025 31.7 -104.2 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 18 10 47 2025 31.5 -116.1 3.3 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 18 10 25 2025 45.7 26.8 3.9 ROMANIA M60 SG137 T149 D128 MA146 Z151 NG46
05 18 10 03 2025 51.1 105.4 3.8 LAKE BAYKAL REGION, RUSSIA M29 SG116 T99 D173 MA112 Z111 NG35
05 18 09 55 2025 58.2 -149.3 4.5 GULF OF ALASKA M83 SG134 T80 D131 MA120 Z112 NG30
05 18 09 52 2025 17.5 -94.9 4.2 VERACRUZ, MEXICO M139 SG122 T86 D77 MA115 Z109 NG75
05 18 08 08 2025 31.7 -104.4 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 18 08 01 2025 31.7 -104.4 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 18 07 54 2025 -17.7 -174.4 4.9 TONGA M96 SG57 T2 D83 MA43 Z34 NG104
05 18 07 29 2025 36.0 28.1 4.1 DODECANESE IS.-TURKEY BORDER R M59 SG129 T155 D122 MA139 Z146 NG55
05 18 07 26 2025 56.2 117.4 4.8 CHITINSKAYA OBLAST', RUSSIA M37 SG120 T95 D176 MA114 Z111 NG30
05 18 07 26 2025 56.2 117.4 4.7 CHITINSKAYA OBLAST', RUSSIA M37 SG120 T95 D176 MA114 Z111 NG30
05 18 06 56 2025 38.7 23.5 4.4 GREECE M63 SG133 T156 D122 MA143 Z150 NG53
05 18 05 52 2025 56.3 117.3 4.3 CHITINSKAYA OBLAST', RUSSIA M37 SG120 T95 D176 MA114 Z111 NG29
COMPARISON OF FORECASTS AND EARTHQUAKES
Following are the comparisons of the closest forecast to today's earthquakes and the listing of the earthquakes sorted by latitude. 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.
O: 19MAY2025 05:59:29 1.1N 97.1E MB=4.7 EMSC NIAS REGION, INDONESIA
P: 15MAY2025 172217 2.0N 99.0E 4.0-5.4 BABAA So. Sumatera
O: 18MAY2025 16:15:35 1.9S 137.4E ML=4.0 EMSC NEAR N COAST OF PAPUA, INDONES
P: 16MAY2025 172243 1.0S 137.0E 4.0-5.5 AAAAA West Irian, PNG
O: 19MAY2025 04:55:53 2.7S 126.7E ML=4.0 EMSC CERAM SEA, INDONESIA
P: 13MAY2025 172222 3.0S 127.0E 4.0-5.5 CAAAA Ceram area
O: 19MAY2025 02:45:50 3.9N 95.9E ML=4.2 EMSC OFF W COAST OF NORTHERN
P: 16MAY2025 172218 5.0N 94.0E 4.0-5.8 BBBAA Nicobar Islands
O: 18MAY2025 16:51:00 6.2S 147.6E MB=4.6 EMSC EASTERN NEW GUINEA REG., P.N.G
P: 12MAY2025 172229 7.0S 147.0E 4.0-5.4 CAAAA New Ireland
O: 19MAY2025 03:41:29 7.5N 125.8E MB=4.9 EMSC MINDANAO, PHILIPPINES
P: 18MAY2025 172209 7.0N 124.0E 4.0-5.4 AABAA Central Philippines
O: 19MAY2025 01:30:05 7.7S 130.0E ML=4.3 EMSC KEPULAUAN BABAR, INDONESIA
P: 18MAY2025 172245 6.0S 131.0E 4.0-5.5 ABAAA West Irian, PNG
O: 18MAY2025 17:56:27 10.7S 41.4E MB=4.4 EMSC COMOROS REGION
O: 18MAY2025 14:42:40 10.8N 86.8W ML=4.2 EMSC OFF COAST OF COSTA RICA
P: 14MAY2025 172248 10.0N 84.0W 3.5-5.3 BACAA Caribbean Sea
O: 18MAY2025 16:59:24 13.9N 92.4W ML=4.2 EMSC OFFSHORE GUATEMALA
O: 18MAY2025 12:33:56 13.9N 92.5W ML=4.0 EMSC OFFSHORE GUATEMALA
O: 18MAY2025 17:12:02 14.1N 92.3W ML=4.1 EMSC OFFSHORE GUATEMALA
P: 17MAY2025 172250 14.0N 94.0W 3.5-5.2 AABAA Chiapas, Mexico
O: 18MAY2025 19:59:07 14.2S 167.4E MB=4.7 EMSC VANUATU
P: 19MAY2025 172431 15.0S 168.0E 4.0-5.6 AAAAA Vanuatu Islands
O: 19MAY2025 05:56:02 15.7N 96.5W ML=4.2 EMSC OAXACA, MEXICO
P: 17MAY2025 172265 15.0N 97.0W 3.5-5.3 AAAAA Oaxaca, Mexico
O: 19MAY2025 00:11:38 16.2S 176.0W MB=4.3 EMSC TONGA
P: 19MAY2025 172430 16.0S 175.0W 4.0-5.5 AAAAA Tonga Islands
O: 19MAY2025 01:32:15 16.3N 94.4W ML=4.0 EMSC OAXACA, MEXICO
O: 18MAY2025 09:52:20 17.5N 94.9W ML=4.2 EMSC VERACRUZ, MEXICO
P: 18MAY2025 172251 17.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
O: 18MAY2025 07:54:39 17.7S 174.4W MB=4.9 EMSC TONGA
P: 19MAY2025 172430 16.0S 175.0W 4.0-5.5 ABAAA Tonga Islands
O: 18MAY2025 23:58:01 18.5S 71.3W MB=4.2 EMSC OFF COAST OF TARAPACA, CHILE
P: 17MAY2025 172428 18.0S 72.0W 4.0-5.6 AAAAA So. Peru/Bolivia
O: 18MAY2025 12:07:49 18.8N 68.9W MD=4.0 EMSC DOMINICAN REPUBLIC
P: 17MAY2025 172274 20.0N 67.0W 3.0-4.4 ABBAA Bahamas/No. Caribbean
O: 19MAY2025 06:22:11 18.9N 107.4W ML=4.1 EMSC OFF COAST OF JALISCO, MEXICO
P: 17MAY2025 172252 18.0N 106.0W 3.5-5.4 AABAA Coast of Jalisco, Mexico
O: 18MAY2025 19:15:21 19.1N 93.4E MB=5.1 EMSC MYANMAR
P: 19MAY2025 172246 19.0N 92.0E 4.0-5.4 AABAA Andaman Islands
O: 18MAY2025 18:37:07 25.5N 141.5E MB=4.7 EMSC VOLCANO ISLANDS, JAPAN REGION
P: 17MAY2025 172276 26.0N 143.0E 4.0-5.4 AABAA Bonin Islands
O: 19MAY2025 05:48:31 30.2S 177.2W MW=5.3 EMSC KERMADEC ISLANDS, NEW ZEALAND
P: 17MAY2025 172455 31.0S 177.0W 4.0-5.5 AAAAA So. Kermadec Islands
O: 18MAY2025 10:47:43 31.5N 116.1W ML=3.3 EMSC BAJA CALIFORNIA, MEXICO
P: 17MAY2025 172331 32.0N 116.3W 2.5-4.6 AAAAA So. California
O: 18MAY2025 08:08:19 31.7N 104.4W ML=2.1 EMSC WESTERN TEXAS
O: 18MAY2025 10:54:02 31.7N 104.2W ML=2.0 EMSC WESTERN TEXAS
O: 18MAY2025 08:01:43 31.7N 104.4W ML=2.1 EMSC WESTERN TEXAS
P: 17MAY2025 172329 32.5N 104.6W 2.0-3.9 AAAAA SW U.S.A
O: 18MAY2025 17:30:50 33.7N 90.7E MB=4.5 EMSC XIZANG-QINGHAI BORDER REGION
P: 16MAY2025 172349 33.0N 92.0E 3.8-5.2 AAAAA Xizang
O: 19MAY2025 02:59:46 34.0N 117.0W ML=2.1 EMSC SOUTHERN CALIFORNIA
P: 20MAY2025 172335 34.6N 116.7W 2.5-4.7 AAAAA So. California
O: 19MAY2025 05:41:48 34.3N 118.4W ML=2.2 EMSC GREATER LOS ANGELES AREA, CALI
P: 16MAY2025 172334 34.4N 118.6W 2.5-5.0 BAAAA So. California
O: 18MAY2025 18:20:21 34.8S 71.7W ML=4.0 EMSC LIBERTADOR O'HIGGINS, CHILE
P: 15MAY2025 172449 35.0S 71.0W 4.0-5.9 BAAAA Central Chile
O: 18MAY2025 07:29:53 36.0N 28.1E MB=4.1 EMSC DODECANESE IS.-TURKEY BORDER R
P: 20MAY2025 172344 38.0N 28.0E 3.5-5.4 ABAAA Turkey
O: 19MAY2025 04:13:37 36.8N 121.4W MD=2.0 EMSC CENTRAL CALIFORNIA
P: 19MAY2025 172301 36.2N 121.8W 2.5-4.6 AAAAA Central California
O: 19MAY2025 03:14:40 37.2N 141.4E MB=4.6 EMSC NEAR EAST COAST OF HONSHU,
P: 18MAY2025 172325 37.0N 141.0E 4.0-5.4 AAAAA Off East Coast Honshu
O: 18MAY2025 22:56:38 37.5N 118.8W MD=2.6 EMSC CENTRAL CALIFORNIA
P: 18MAY2025 172297 37.9N 118.2W 2.5-4.6 AAAAA California/Nevada area
O: 19MAY2025 00:23:32 38.7N 23.5E MW=4.5 EMSC GREECE
O: 18MAY2025 06:56:45 38.7N 23.5E MB=4.4 EMSC GREECE
P: 16MAY2025 172293 39.0N 25.0E 3.0-4.7 BAAAA Aegean Sea
P: 18MAY2025 172293 38.0N 26.0E 3.0-4.7 AABAA Aegean Sea
O: 19MAY2025 03:03:05 40.4N 125.1W MD=2.7 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 17MAY2025 172372 40.2N 124.2W 2.5-4.8 AAAAA Off Coast of No. Calif
O: 19MAY2025 04:16:12 41.3N 142.8E MB=4.3 EMSC HOKKAIDO, JAPAN REGION
P: 19MAY2025 172356 42.0N 145.0E 3.5-5.6 AABAA Hokkaido, Japan
O: 18MAY2025 10:25:41 45.7N 26.8E ML=3.9 EMSC ROMANIA
P: 13MAY2025 172379 46.0N 26.0E 3.0-5.5 BAAAA Romania/NW Turkey
O: 18MAY2025 10:03:51 51.1N 105.4E ML=3.8 EMSC LAKE BAYKAL REGION, RUSSIA
P: 17MAY2025 172405 56.0N 110.0E 3.0-4.7 ACCAA So. Siberia
O: 19MAY2025 03:46:56 51.5N 16.2E ML=3.5 EMSC POLAND
P: 17MAY2025 172400 51.0N 19.0E 3.0-4.9 AABAA Poland
O: 18MAY2025 07:26:30 56.2N 117.4E MB=4.7 EMSC CHITINSKAYA OBLAST', RUSSIA
P: 16MAY2025 172405 58.0N 121.0E 3.0-4.6 ABBAA So. Siberia
P: 20MAY2025 172405 52.0N 116.0E 3.0-4.7 ACAAA So. Siberia
O: 18MAY2025 09:55:43 58.2N 149.3W MW=4.5 EMSC GULF OF ALASKA
P: 14MAY2025 172410 59.0N 150.1W 3.2-5.1 BAAAA Central Alaska
May 18, 2025
Notable earthquakes and events:
A pair of earthquakes of M 4.4 and M 4.8 occurred northeast of Lake Baykal, Russia in the the Chitsinitsa Oblast. These are within about 300 km of exact antipodal to the M 7.4 in the Drake Passage (M 7.4 May 2). Antipodal effects probably helped trigger these events.
The strongest geomagnetic storm since May 2, 2025 occurred today. AP reached 38 with high latitude A reaching 51. KP reached 6 mid-day and also early on May 18.
The last storm of similar disturbance occurred beginning on May 2, 2025 with AP 39 and
high latitude A of 65. Maximum Kp with that storm reached 7.
Strong geomagnetic storms can help promoted enhanced seismicity at high
latitudes and at nodal distances from the south and north geomagnetic poles
in the first day of the storm. For example the last major earthquake in the
world - an M 7.4 on May 2 in the Drake Passage - coincided with the storm of May 2.
A pair of earthquakes of M 4.4 and M 4.8 occurred northeast of Lake Baykal, Russia in the the Chitsinitsa Oblast. These are within about 300 km of exact antipodal to the M 7.4 in the Drak Passage (M 7.4 May 2). Antipodal effects probably helped trigger these events.
According to Russian media these events were felt with intensity up to V in the remote epicentral area.
The strongest earthquake in the U.S. or Canada today was an M 4.9 south of the Alaska Peninsula. NEIC reported it was felt with intensity II in Sand Point, Alaska.
Several moderate aftershocks followed in the hours after the mainshock.
An M 3.9 also occurred today in the Fox River area of southern Alaska. NEIC reported intensity III in Alaska at Clam Gulch, Homer, Seward and II in the Kenai Peninsula at Anchor Point, Kasilof, Kenai, Moose Pass, and Soldotna.
CENTRAL PERU
A strong earthquake of M 6.0 occurred in Cenral Peru on the morning of May 17.
NEIC reported it was felt with intensity VI in Ayacucho, Peru with minor damage and intensity VI in Puquio and V in Ica at Santiago, Peru. Intensity IV in Ica was also felt at Subtanjalla and III in Lima and Pisco with II in Cusco.
EMSC reported strong shaking in Ayacucho, Ica, Lircay (for 30 seconds); Jose Luis Bustamante and Rivero, Arequipa, Chocaya, San Isidro, Asia.
This epicenter is located on the geomagnetic equator and is at 99-100 degrees
from the South Geomagnetic Pole as well as the New Zealand quake of March 25, 2025 (M 6.8) and the
Macquarie Island quake of April 29, 2025 and at 108 degrees from the North Geomagnetic Pole and may have been promoted by
energy associated with those sources. Charged particles entering the earth's
environment are drawn to the north and South geomagnetic poles disturbing
the solid earth in much the same was as an earthquake. These effects are
often strongest at or near 103 degrees from the poles but can vary by a few degrees when coincidental
distances from similar sources and waveforms can cause constructive energy interference.
The last earthquake of hit Peru within about 150 km of today's epicenter with
M>=6.0 was an M 7.4 on June 28, 2024 about 100 km south of today's epicenter.
At the time this summary noted:
"A major M 7.2 earthquake occurred today off the west coast of Southern Peru. NEIC reported it was
felt with intensity up to IX in Atiquipa, Peru. EMSC reported strong to damaging
intensity in Southern Peru at Ica, Arequipa, Jose Luis Bustamante y Rivero, Pilcomayo, Villa El Salvador, Chorrilos, Surquillo, San Isidro, Jesus Maria, Magdalena Del Mar, Lima, Independencia, San Martin de Porres, Ventanilla, Alto Hospicio, and possible as far the north as Ecuador.
CENSIS reported intensity VI in Yauca, Caraveli, Arequipa, Peru. At least five were injured in this earthquake according to on-line news sources.
Power and Telephone service was out in some portions of southern Peru.
This is the strongest earthquake within about 250 km of this epicenter
since an M 8.4 on June 23, 2001 - an event closely associated with a total
solar eclipse on June 21, 2001 - and an M 7.7 on November 12, 1996 - the only such regional events
in the past 35 years. The earthquake in Peru today occurred 23 years after
the event of June 23, 2001 and was reviewed in the "HISTORY" section of this
summary on June 23, 2023 (and June 23, 2024) as:
"The earthquake killed at least 75 including at least 26 by a tsunami. Nearly 18,000 homes were destroyed and more than 35,000 damaged in Arequipa, Camana and Tacna while injuring nearly 2700. Besides the 26 killed by the tsunami an additional 64 were missing. Many historic buildings were damaged or destroyed at Arequipa. Landslides blocked many highways. The earthquake followed by several days a total eclipse of the sun in the area. A tsunami was generated with maximum height to 7 meters and inundated up to 1 km inland." (June 23, 2023)
Today's earthquake of M 7.2 is the strongest
...
A strong geomagnetic storm occurred today starting at about 14:00 UT and peaking at about 14:50 UT
The GOES 15 magnetometer registered a change in the field strength beginning at
about 80 NT and ending at about 130 nT (nanoTesla) 15 minutes later as this geomagnetic
storm hit. A strong earthquake of M 6.0 occurred with this storm on the geomagnetic
equator in Southern Peru at 16S 74W. This was an epicenter which this summary
had expected to see a strong earthquake at this time associated with geomagnetic
storms ,,," (June 28, 2024)
This earthquake occurred during a moderate solar flare, the second strongest in the past
24 hours. Data for this solar flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0956 1009 1020 B8.5 (May 17, 2025) 1.0E-03
Peru M 6.0 10:22 UT
Oaxaca M 4.3 10:08 UT
Forecast 172258 had expected today's event in Peru was likely in mid-May within
about 100 km.
O: 17MAY2025 10:22:13 14.8S 74.2W MW=6.0 EMSC Central Peru
P: 13MAY2025 172258 16.0S 74.0W 4.0-5.6 BBAAA So. Peru/Bolivia
NEIC reported an earthquake of M 4.4 in Greece was felt with intensity up to II-III in the area(s) of Greece with II in Attiki at Khalandrion and II in Athens, Palaion Faliron, it was also felt in Korinthos and Volos, Greece with II.
EMSC reported strong shaking in Greece at Kirinthos, Paralia Politikon, Anthidona, Chalkida, Xirovrysi, Atalanti, Oropos, Nea Politeia, Magoula, Ano Liosia, Dimos Kifisias, Acharnes, Kifisia among others.
NEIC reported an earthquake of M 4.9 in Lombok, Indonesia was felt with intensity up to II-III in the area(s) of Lombok, Indonesia in Denpasar, Bali.
EMSC reported moderate shaking in Lombok at Kuta and Pujut and Sandubaya, Cakranegara, Nusa Peninda, Batu Layar, and in Denpasar, Kuta Utara, Gianyar, Kediri, Tampalksiring, Ubud, Amed, Abang, Tegallalang, Bali.
NEIC reported an earthquake of M 4.5 in Panama was felt with intensity up to IV in the area(s) of Panama at Santa Fe Veraguas.
NEIC reported an earthquake of M 4.2 in Greece was felt with intensity up to IV in the area(s) of Greece with IV at Istaiia, Evvoia; III in Attiki at Peristerion and Tauros and II in Eulalon, Xanthi.
NEIC reported an earthquake of M 2.5 in Southern Colorado was felt with intensity up to II-III in the area(s) of Southern Colorado in Trinidad.
NEIC reported an earthquake of M 5.2 in Myanmar was felt with intensity up to II-III in the area(s) of Myanmar with IV in Kyaukse; V in Taungdwingyi, Magway, and V in Maymyo with IV in Mandalay and Sagaing.
EMSC reported moderate shaking in Myanmar at Myittha, Kyaukse, Sintgaing, Mandalay, Chanmyathazi, Thazi, Aungmyaythazan, Pyinoolwin, Kalaw, Taynggyi, Loilem, Mogok, Pobbathiri, Si Phum, Dagon Myothit.
NEIC reported an earthquake of M 4.6 in Honduras was felt with intensity up to II-III in the area(s) of Honduras at Yaguacire, Francisco Morazan.
NEIC reported an earthquake of M 3.0 in Northern California was felt with intensity up to II-III in the area(s) of Northern California with III in San Francisco, Kelseyville and II in Middletown.
EMSC reported an earthquake of M 4.8 in Mindanao, Philippines was felt with intensity up to IV in the area(s) of Mindanao, Philippines at Dumaguete City.
PHIVOLCS reported intensity III in City of Dipolog, City of Dapitan, Liloy, Jose Dalman, Manukan, Pres. Manuel A Roxas, Salug, Siayan, Leon T. Postigo, Katipunana dn Sinandangan, Zamboanda del Norte and II in Tampitisan and I in Bonifacio, Misamis Occidental.
EMSC reported an earthquake of M 4.0 in Central Turkey was felt with intensity up to IV in the area(s) of Central Turkey at Gazibeyli, Kicikoy, Germir, Mimarsinan, Mithatpasa.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4120 0956 1009 1019 B8.5 (May 17, 2025) 1.0E-03
Peru M 6.0 10:22 UT
Oaxaca M 4.3 10:08 UT
4130 1351 1406 1419 B9.1 (May 17, 2025) 1.3E-03
4150 1944 2000 2011 C2.2 (May 17, 2025) 3.1E-03
Colorado M 2.5 19:52 UT
Gulf of California M 3.4 20:15 UT
4170 2311 2336 0006 B9.6 (May 17, 2025) 3.0E-04
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms May 18-19 active May 20. Solar M-flare chance: 35% X-class: 10% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 38 51 25 16:00 6 58 117
A strong Gamma Ray Burst was recorded by SWIFT on May 16, 2025 at 14:35:29 UT (#250516A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 18 08 08 2025 31.7 -104.4 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 18 08 01 2025 31.7 -104.4 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 18 07 54 2025 -17.6 -174.5 4.9 TONGA M96 SG57 T2 D84 MA43 Z34 NG104
05 18 07 32 2025 19.0 -67.6 3.1 PUERTO RICO REGION M136 SG132 T111 D75 MA132 Z128 NG74
05 18 07 26 2025 56.2 117.4 4.8 CHITINSKAYA OBLAST', RUSSIA M37 SG120 T95 D176 MA114 Z111 NG30
05 18 07 26 2025 56.2 117.4 4.7 CHITINSKAYA OBLAST', RUSSIA M37 SG120 T95 D176 MA114 Z111 NG30
05 18 06 56 2025 38.7 23.5 4.4 GREECE M63 SG133 T156 D122 MA143 Z150 NG53
05 18 06 13 2025 36.6 70.9 4.4 HINDU KUSH REGION, AFGHANISTAN M26 SG112 T121 D146 MA115 Z118 NG52
05 18 05 52 2025 56.3 117.3 4.3 CHITINSKAYA OBLAST', RUSSIA M37 SG120 T95 D176 MA114 Z111 NG29
05 18 05 52 2025 12.9 -88.5 4.0 OFFSHORE EL SALVADOR M145 SG120 T90 D71 MA115 Z110 NG80
05 18 05 10 2025 19.2 -105.0 4.2 OFFSHORE JALISCO, MEXICO M134 SG120 T78 D81 MA111 Z104 NG72
05 18 04 53 2025 -10.2 116.1 4.9 SOUTH OF LOMBOK, INDONESIA M37 SG55 T67 D113 MA53 Z55 NG96
05 18 04 25 2025 34.5 -116.3 2.0 SOUTHERN CALIFORNIA M116 SG128 T77 D99 MA116 Z108 NG56
05 18 04 15 2025 -20.4 -177.7 4.4 FIJI REGION M94 SG53 T3 D83 MA39 Z31 NG107
05 18 03 47 2025 -11.3 118.4 4.9 SOUTH OF SUMBAWA, INDONESIA M39 SG53 T65 D111 MA51 Z53 NG97
05 18 03 46 2025 8.7 123.2 4.8 MINDANAO, PHILIPPINES M29 SG72 T68 D131 MA68 Z67 NG77
05 18 03 24 2025 -20.9 -69.0 4.2 TARAPACA, CHILE M165 SG93 T95 D35 MA96 Z95 NG114
05 18 03 06 2025 43.2 41.5 3.9 GEORGIA (SAK'ART'VELO) M49 SG129 T142 D134 MA136 Z140 NG47
05 18 02 40 2025 -53.0 -47.3 4.9 SOUTH ATLANTIC OCEAN M138 SG63 T93 D12 MA71 Z75 NG147
05 18 02 30 2025 31.3 -103.1 2.2 WESTERN TEXAS M123 SG131 T85 D92 MA121 Z113 NG60
05 18 02 19 2025 38.8 -122.8 2.5 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 18 01 42 2025 17.0 -100.1 4.4 GUERRERO, MEXICO M138 SG120 T81 D78 MA112 Z105 NG75
05 18 01 14 2025 54.4 -158.7 3.7 SOUTH OF ALASKA M80 SG128 T75 D132 MA114 Z106 NG33
05 18 01 11 2025 -36.9 177.6 4.0 OFF E. COAST OF N. ISLAND, N.Z M96 SG37 T18 D71 MA23 Z14 NG123
05 18 01 05 2025 42.0 -126.4 2.9 OFF COAST OF OREGON M105 SG130 T75 D109 MA116 Z108 NG48
05 18 01 03 2025 54.4 -158.8 3.9 SOUTH OF ALASKA M80 SG128 T75 D132 MA114 Z106 NG33
05 18 00 37 2025 -4.2 142.3 4.2 NEW GUINEA, PAPUA NEW GUINEA M52 SG59 T45 D114 MA50 Z47 NG89
05 18 00 32 2025 43.0 146.5 4.7 KURIL ISLANDS M46 SG106 T72 D154 MA97 Z92 NG42
05 18 00 10 2025 9.1 -81.5 4.5 PANAMA M148 SG119 T95 D66 MA116 Z112 NG84
05 18 00 05 2025 31.7 -104.4 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 17 23 52 2025 38.7 23.6 4.2 GREECE M63 SG133 T156 D122 MA143 Z150 NG53
05 17 23 34 2025 38.6 -122.7 2.2 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 17 23 26 2025 31.7 -104.4 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 17 23 01 2025 18.2 -94.3 4.1 OFFSHORE VERACRUZ, MEXICO M138 SG123 T86 D77 MA116 Z110 NG74
05 17 22 24 2025 19.1 -155.4 3.1 ISLAND OF HAWAII, HAWAII M99 SG98 T43 D104 MA84 Z75 NG69
05 17 21 20 2025 2.5 96.0 4.9 SIMEULUE, INDONESIA M19 SG72 T90 D124 MA74 Z78 NG84
05 17 21 18 2025 43.6 -127.5 3.0 OFF COAST OF OREGON M103 SG131 T76 D111 MA117 Z108 NG46
05 17 21 11 2025 38.4 -122.7 2.4 NORTHERN CALIFORNIA M109 SG128 T75 D105 MA116 Z107 NG52
05 17 20 58 2025 18.7 -66.8 3.0 PUERTO RICO REGION M136 SG132 T111 D75 MA132 Z128 NG75
05 17 20 56 2025 -17.5 -174.3 4.7 TONGA M96 SG57 T2 D84 MA43 Z34 NG104
05 17 20 33 2025 31.7 -104.4 2.4 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 17 20 15 2025 30.6 -114.4 3.4 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 NG60
05 17 19 59 2025 31.7 -104.4 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 17 19 52 2025 37.3 -104.5 2.5 COLORADO M117 SG136 T86 D98 MA125 Z116 NG54
05 17 19 05 2025 38.1 36.6 4.0 CENTRAL TURKEY M52 SG127 T148 D128 MA135 Z141 NG53
05 17 18 48 2025 36.6 -115.7 2.7 NEVADA M114 SG130 T78 D101 MA118 Z109 NG54
05 17 17 41 2025 -59.2 -26.3 4.9 SOUTH SANDWICH ISLANDS REGION M125 SG56 T96 D22 MA66 Z72 NG153
05 17 15 54 2025 21.4 96.0 5.2 MYANMAR M0 SG90 T97 D142 MA90 Z92 NG65
05 17 15 16 2025 33.7 -116.8 2.1 SOUTHERN CALIFORNIA M116 SG127 T76 D99 MA115 Z107 NG57
05 17 15 09 2025 54.2 -159.9 4.9 SOUTH OF ALASKA M80 SG127 T75 D133 MA114 Z106 NG34
05 17 14 11 2025 31.3 -103.6 2.0 WESTERN TEXAS M123 SG131 T84 D92 MA121 Z113 NG60
05 17 13 31 2025 17.8 -84.2 4.6 NORTH OF HONDURAS M140 SG126 T95 D75 MA122 Z116 NG75
05 17 12 40 2025 38.8 -122.7 2.8 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 17 12 19 2025 18.7 -64.3 3.0 VIRGIN ISLANDS REGION M135 SG133 T114 D75 MA133 Z130 NG75
05 17 11 17 2025 -3.5 152.2 4.4 NEW IRELAND REGION, P.N.G. M60 SG61 T37 D111 MA50 Z45 NG89
05 17 10 56 2025 36.2 69.4 4.0 HINDU KUSH REGION, AFGHANISTAN M27 SG112 T122 D145 MA116 Z119 NG52
05 17 10 46 2025 59.6 -150.5 4.2 KENAI PENINSULA, ALASKA M82 SG135 T81 D132 MA121 Z113 NG29
05 17 10 31 2025 16.0 -98.7 4.0 OFFSHORE OAXACA, MEXICO M139 SG119 T82 D76 MA112 Z105 NG76
05 17 10 22 2025 -14.8 -74.1 6.0 CENTRAL PERU M168 SG98 T93 D42 MA99 Z98 NG108
05 17 10 08 2025 16.0 -94.4 4.3 OFFSHORE OAXACA, MEXICO M140 SG121 T85 D75 MA114 Z108 NG76
05 17 09 40 2025 46.9 -113.2 2.4 WESTERN MONTANA M106 SG139 T86 D109 MA126 Z118 NG44
05 17 08 01 2025 -35.1 -107.3 5.0 SOUTHERN EAST PACIFIC RISE M155 SG69 T59 D34 MA66 Z63 NG126
05 17 07 54 2025 36.0 -97.9 2.3 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 17 07 31 2025 -8.5 117.1 4.0 SUMBAWA REGION, INDONESIA M36 SG56 T67 D114 MA54 Z56 NG94
05 17 07 11 2025 17.2 -95.2 4.2 OAXACA, MEXICO M139 SG122 T85 D77 MA115 Z109 NG75
May 17, 2025
Notable earthquakes and events:
There were no major solar flares today. The X2.7 on May 15 caused radio blackouts throughout areas of Africa and Europe and some communication problems. No CME from this flare is expected to impact earth.
The strongest earthquake in the world in the past 24 hours was an M 6.0 in Central Peru.
A moderate geomagnetic storm occurred today reaching Kp of 6.3 in the first
three hours of the day. The M 6.0 in Peru at the geomagnetic equator occurred during this storm.
A moderate earthquake of M 5.1 occurred today in the Negros area of the Philippines today. It was felt with intensity II-III.
A series of light earthquakes is occurring off the coast of Northern California at this writing. The largest of these was an M 3.6 felt in Ferndale and Fortuna, California with intensity II.
This event was preceded by earthquakes of M 2.9, 3.0, 2.5, 2.5 among others.
This sequence began earlier in the day with an M 2.8. That event occurred
about two minutes after a Gamma Ray Burst (GRB) was observed by the SWIFT
array. The data for this GRB is:
A strong Gamma Ray Burst (GRB) was recorded by SWIFT on May 16, 2025 at 14:35:29 UT (#250516A). A preliminary UVOT Magnitude was not assigned to this GRB.
The first of the earthquakes in this series today occurred as an M 2.8 at May 16 at 14:37:25 UT
An earthquake of M 2.3 occurred about a minute after the GRB in Central Turkey (not an aftershock
of recent Turkish activity).
NEGROS, PHILIPPINES
NEIC reported an earthquake of M 5.1 in Negros, Philippines was felt with intensity up to II-III in the area(s) of Negros, Philippines with III in Nabitasan, Western Visayas and II in Bacolod, Isabela, San Jose and Tiwi and in Vallehermoso, Central Visayas.
EMSC reported moderate shaking in the Philippines at San Enrique, Talisay City and Cadiz City.
PHIVOLCS reported intensity IV in City of Sipalay, Cauayan, and Candoni, Negros Occidental; III in La Casetlland, City of Silay
City of Bago, Pontevedra, Polopandan, City of Kabankalan, City of Himamaylan and Valladolid, Negros Occidental; City of Bayawan, Negros Oriental and City of Oliolo with lesser shaking in City of Bacolod, Antique, Aklan and Cibu, Philippines.
An M 5.1 or greater earthquake last occurred within about 150 km of this epicenter
on August 13, 2022 with M 5.1 but the last of significantly
larger magnitude was an M 6.2 on May 15, 2014 - 11.0 years ago. At the time this summary noted:
"The increase in seismicity near the geomagnetic equator noted in this summary
yesterday continued today with strong events of M 6.3 in Northern Mindanao,
Philippines and a second M 6.3 in the Yap Islands of the Caroline Islands in Micronesia to the east of
this. No tsunami was generated by either earthquake. Both events occurred near
the local geomagnetic equator as expected in the current global seismic watch and
within several hours of local solar midnight (They were separated by about 1.5 hours in time).
A Gamma Ray Burst (GRB) was detected by the Swift Satellite Mission midway
between these two earthquakes. A gravity wave associated with this GRB could
have helped promote these two earthquakes.
The earthquake in the Philippines was widely felt throughout most of the area of Mindanao and Negros.
Phivolcs reported intensity V in Hinoba-an and Sipalay, Newgro Occidental; IV in Iloilo City; Bago City; Pandan, Antique, Basay, Newgros Occ; Binalbagan, Negros Occ. Bayawan Cityk, Negros Oriental; III in Roxas City, Bais City; La Carlota City; Zamboanga City, Lapulapu City; Cebu City, La Castellana, Negros Occ; Bacolod City; Dumaguete City, Jagna, Bohol; Oton, Iloilo; Tayasan; Jimalalud; Ayungon; and Sibulan, Negros Or.; Dipolog City; Nueva Valencia, Guimaras; Anini-y, Antique, Siquijor Island; Tagbilaran City; II in San Jose, Antique; Sibalom, Antique, Pagadian City; Cagayan de Oro City; Osamis City, San Remegio, Culasi, Sebaste and Tobias Fornier, Antique and I in Masbate City; Kalibo, Aklan; Labason; Polanco and Manukan, Zamboanga del Norte, Philippines.
EMSC reported maximum intensity in DumagueteLa Carlota City, Iloilo City, Minglanilla, Cebu City and Mandaue City, Philippines. There were no immediate reports of damage or casualties.
This is the strongest earthquake to occur within 200 km of this epicenter since
events of M 6.7 on February 6, 2012 and July 11, 2011 of M 6.7 and 6.2 respectively.
The earthquake of 2012 was damaging and deadly in the region and occurred
within two days of the full moon. The quake of July, 2011 occurred three days
before the full moon." (May 15, 2014)
This epicenter is near the fifth node (72 degrees) from the Macquarie Islands earthquake of
April 29, 2025 (M 6.8) and from Tonga (M 7.1), New Zealand (March 25); the North Geomagnetic Pole, and the South Geomagnetic Pole and was probably promoted by constructive energy interference from those sources.
Forecast 172258 had expected this activity in central Philippines was likely
around May 14.
O: 17MAY2025 00:32:58 9.8N 122.2E MW=5.1 EMSC Negros, Philippines
P: 14MAY2025 172258 12.0N 122.0E 3.5-4.9 BBAAA Luzon, Philippines
CENTRAL PERU
A strong earthquake of M 6.0 occurred in Cenral Peru on the morning of May 17.
NEIC reported it was felt with intensity VI in Ayacucho, Peru with minor damage and intensity VI in Puquio and V in Ica at Santiago, Peru. Intensity IV in Ica was also felt at Subtanjalla and III in Lima and Pisco.
EMSC reported strong shaking in Ayacucho, Ica, Lircay (for 30 seconds); Jose Luis Bustamante and Rivero, Arequipa, Chocaya, San Isidro, Asia.
This epicenter is located on the geomagnetic equator and is at 99-100 degrees
from the South Geomagnetic Pole as well as the New Zealand quake of March 25, 2025 (M 6.8) and the
Macquarie Island quake of April 29, 2025 and at 108 degrees from the North Geomagnetic Pole and may have been promoted by
energy associated with those sources. Charged particles entering the earth's
environment are drawn to the north and South geomagnetic poles disturbing
the solid earth in much the same was as an earthquake. These effects are
often strongest at or near 103 degrees from the poles but can vary by a few degrees when coincidental
distances from similar sources and waveforms can cause constructive energy interference.
The last earthquake of hit Peru within about 150 km of today's epicenter with
M>=6.0 was an M 7.4 on June 28, 2024 about 100 km south of today's epicenter.
At the time this summary noted:
"A major M 7.2 earthquake occurred today off the west coast of Southern Peru. NEIC reported it was
felt with intensity up to IX in Atiquipa, Peru. EMSC reported strong to damaging
intensity in Southern Peru at Ica, Arequipa, Jose Luis Bustamante y Rivero, Pilcomayo, Villa El Salvador, Chorrilos, Surquillo, San Isidro, Jesus Maria, Magdalena Del Mar, Lima, Independencia, San Martin de Porres, Ventanilla, Alto Hospicio, and possible as far the north as Ecuador.
CENSIS reported intensity VI in Yauca, Caraveli, Arequipa, Peru. At least five were injured in this earthquake according to on-line news sources.
Power and Telephone service was out in some portions of southern Peru.
This is the strongest earthquake within about 250 km of this epicenter
since an M 8.4 on June 23, 2001 - an event closely associated with a total
solar eclipse on June 21, 2001 - and an M 7.7 on November 12, 1996 - the only such regional events
in the past 35 years. The earthquake in Peru today occurred 23 years after
the event of June 23, 2001 and was reviewed in the "HISTORY" section of this
summary on June 23, 2023 (and June 23, 2024) as:
"The earthquake killed at least 75 including at least 26 by a tsunami. Nearly 18,000 homes were destroyed and more than 35,000 damaged in Arequipa, Camana and Tacna while injuring nearly 2700. Besides the 26 killed by the tsunami an additional 64 were missing. Many historic buildings were damaged or destroyed at Arequipa. Landslides blocked many highways. The earthquake followed by several days a total eclipse of the sun in the area. A tsunami was generated with maximum height to 7 meters and inundated up to 1 km inland." (June 23, 2023)
Today's earthquake of M 7.2 is the strongest
...
A strong geomagnetic storm occurred today starting at about 14:00 UT and peaking at about 14:50 UT
The GOES 15 magnetometer registered a change in the field strength beginning at
about 80 NT and ending at about 130 nT (nanoTesla) 15 minutes later as this geomagnetic
storm hit. A strong earthquake of M 6.0 occurred with this storm on the geomagnetic
equator in Southern Peru at 16S 74W. This was an epicenter which this summary
had expected to see a strong earthquake at this time associated with geomagnetic
storms ,,," (June 28, 2024)
This earthquake occurred during a moderate solar flare, the second strongest in the past
24 hours. Data for this solar flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0956 1009 1020 B8.5 (May 17, 2025) 1.0E-03
Peru M 6.0 10:22 UT
Oaxaca M 4.3 10:08 UT
Forecast 172258 had expected today's event in Peru was likely in mid-May within
about 100 km.
O: 17MAY2025 10:22:13 14.8S 74.2W MW=6.0 EMSC Central Peru
P: 13MAY2025 172258 16.0S 74.0W 4.0-5.6 BBAAA So. Peru/Bolivia
NEIC reported an earthquake of M 3.8 in Southern Nevada was felt with intensity up to II-III in the area(s) of Southern Nevada with III in Henderson and Mesquite and Overton and II in Las Vegas with lesser shaking in Saint George, Utah.
NEIC reported an earthquake of M 4.0 in Puerto Rico was felt with intensity up to II-III in the area(s) of Puerto Rico at Aguada and Ponce.
NEIC reported an earthquake of M 3.0 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska at Valdez.
NEIC reported an earthquake of M 3.7 in Central Alaska was felt with intensity up to II-III in the area(s) of Central Alaska in Willow.
NEIC reported an earthquake of M 3.4 in Kodiak Island, Alaska was felt with intensity up to II-III in the area(s) of Kodiak Island, Alaska with III in Kodiak.
NEIC reported an earthquake of M 2.7 in Northern Utah was felt with intensity up to II-III in the area(s) of Northern Utah at Portage.
NEIC reported an earthquake of M 2.7 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas with II in El Paso.
NEIC reported an earthquake of M 2.5 in Utah was felt with intensity up to II-III in the area(s) of Utah at Henderson Nevada.
NEIC reported an earthquake of M 2.4 in Northern Kansas was felt with intensity up to II-III in the area(s) of Northern Kansas.
This epicenter is located at 101 degrees from the M 7.4 in the Drake Passage of May 2 and may
have been promoted by energy from that source. Other earthquakes at this
distance from the Drake Passage today occurred in southern Nevand and Utah (M 3.8, 2.5);
Central California.
EMSC reported an earthquake of M 4.2 in Romania was felt with intensity up to IV in the area(s) of Romania in Bucharest and II in Chisinau, Moldova.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0956 1009 1020 B8.5 (May 17, 2025) 1.0E-03
Peru M 6.0 10:22 UT
Oaxaca M 4.3 10:08 UT
3800 0044 0052 0055 C3.4 (May 16, 2025) 1.4E-03
Tanzania M 4.7 00:53 UT
3830 0310 0315 0329 C1.7 (May 16, 2025) 1.5E-03
3840 0348 0403 0415 C2.3 (May 16, 2025) 3.9E-04
Vietnam M 4.5 04:17 UT
3850 0527 0539 0547 C1.0 (May 16, 2025) 1.1E-03
Kermadec Is. M 4.9 05:34 UT
3920 1027 1032 1038 C1.3 (May 16, 2025) 8.0E-04
Guerrero M 3.4 10:28 UT
Baja California M 3.3 10:26 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 17 minor storms May 18-19. Solar M-flare chance: 60% X-class: 20% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 13 24 11 09:00 5 57 117
A strong Gamma Ray Burst was recorded by SWIFT on May 16, 2025 at 14:35:29 UT (#250516A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 17 10 22 2025 -14.8 -74.2 6.0 CENTRAL PERU M168 SG98 T93 D42 MA99 Z98 NG108
05 17 10 08 2025 15.6 -95.0 4.3 OFFSHORE OAXACA, MEXICO M141 SG120 T85 D75 MA114 Z108 NG77
05 17 09 41 2025 -11.4 118.2 4.4 SOUTH OF SUMBAWA, INDONESIA M39 SG53 T65 D111 MA51 Z53 NG97
05 17 08 01 2025 -35.2 -107.3 5.0 SOUTHERN EAST PACIFIC RISE M155 SG69 T59 D34 MA66 Z63 NG126
05 17 07 54 2025 36.0 -97.9 2.3 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 17 07 31 2025 -8.5 117.1 4.0 SUMBAWA REGION, INDONESIA M36 SG56 T67 D114 MA54 Z56 NG94
05 17 07 11 2025 17.2 -95.2 4.2 OAXACA, MEXICO M139 SG122 T85 D77 MA115 Z109 NG75
05 17 06 51 2025 9.8 122.0 4.2 NEGROS, PHILIPPINES M27 SG74 T69 D132 MA69 Z69 NG76
05 17 06 11 2025 -51.4 -72.2 4.0 SANTA CRUZ, ARGENTINA M149 SG63 T81 D5 MA67 Z69 NG144
05 17 05 54 2025 36.5 -114.1 3.8 NEVADA M115 SG131 T79 D100 MA119 Z110 NG55
05 17 05 52 2025 12.9 -88.5 4.1 OFFSHORE EL SALVADOR M145 SG120 T90 D71 MA115 Z110 NG80
05 17 05 51 2025 40.3 -124.7 3.3 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 17 05 40 2025 -23.5 179.9 4.8 SOUTH OF FIJI ISLANDS M93 SG49 T6 D81 MA35 Z27 NG110
05 17 05 21 2025 40.3 -124.9 2.6 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 17 05 06 2025 40.3 -124.6 2.9 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 17 04 44 2025 40.3 -124.7 2.5 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 17 04 36 2025 40.3 -124.7 2.5 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 17 04 34 2025 31.7 -104.4 3.4 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 17 04 11 2025 39.8 -99.1 2.4 KANSAS M116 SG140 T91 D99 MA129 Z121 NG52
05 17 03 53 2025 40.3 -124.9 2.3 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 17 03 39 2025 40.4 -125.0 2.8 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 NG50
05 17 03 24 2025 19.3 -67.2 4.0 PUERTO RICO REGION M135 SG133 T111 D75 MA132 Z129 NG74
05 17 03 23 2025 9.9 122.0 4.1 NEGROS, PHILIPPINES M27 SG74 T69 D132 MA69 Z69 NG76
05 17 01 11 2025 -57.1 -67.6 4.5 DRAKE PASSAGE M142 SG58 T81 D0 MA63 Z66 NG150
05 17 00 45 2025 -3.5 145.4 5.1 NEAR N COAST OF NEW GUINEA, PN M54 SG60 T43 D114 MA51 Z47 NG89
05 17 00 32 2025 9.8 122.2 5.1 NEGROS, PHILIPPINES M27 SG74 T69 D132 MA69 Z69 NG76
05 16 23 37 2025 61.4 -146.6 3.0 SOUTHERN ALASKA M83 SG137 T84 D132 MA124 Z115 NG27
05 16 23 14 2025 1.0 93.2 4.4 OFF W COAST OF NORTHERN M21 SG71 T93 D122 MA74 Z78 NG86
05 16 22 14 2025 63.1 -151.5 3.7 CENTRAL ALASKA M80 SG137 T84 D135 MA124 Z116 NG25
05 16 21 59 2025 45.6 26.5 4.2 ROMANIA M60 SG137 T149 D128 MA146 Z151 NG46
05 16 21 48 2025 -9.1 125.7 4.4 EAST TIMOR REGION M42 SG55 T59 D113 MA50 Z51 NG94
05 16 21 40 2025 44.6 -114.3 2.0 SOUTHERN IDAHO M108 SG137 T84 D108 MA124 Z116 NG46
05 16 21 26 2025 -56.9 -67.5 3.4 DRAKE PASSAGE M143 SG58 T81 D0 MA63 Z66 NG150
05 16 20 36 2025 31.7 -104.4 2.6 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 16 20 09 2025 18.1 119.9 4.2 PHILIPPINE ISLANDS REGION M22 SG82 T75 D140 MA78 Z77 NG67
05 16 20 07 2025 40.3 -124.8 2.0 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 16 19 48 2025 33.0 -116.7 2.1 SOUTHERN CALIFORNIA M117 SG127 T76 D98 MA115 Z106 NG58
05 16 19 43 2025 57.7 -152.5 3.4 KODIAK ISLAND REGION, ALASKA M82 SG133 T79 D132 MA119 Z111 NG31
05 16 19 25 2025 -4.7 153.0 4.6 NEW IRELAND REGION, P.N.G. M61 SG60 T35 D110 MA49 Z44 NG90
05 16 19 15 2025 -35.8 -105.6 4.9 SOUTHERN EAST PACIFIC RISE M156 SG69 T61 D32 MA66 Z63 NG127
05 16 19 11 2025 35.1 -119.1 2.0 CENTRAL CALIFORNIA M114 SG127 T75 D101 MA115 Z106 NG56
05 16 19 01 2025 35.8 -118.4 2.0 CENTRAL CALIFORNIA M113 SG128 T76 D101 MA116 Z107 NG55
05 16 18 32 2025 63.7 -23.4 3.6 ICELAND REGION M82 SG170 T132 D124 MA170 Z163 NG30
05 16 18 09 2025 50.6 -130.3 3.0 VANCOUVER ISLAND, CANADA REGIO M97 SG135 T80 D118 MA121 Z112 NG39
05 16 17 00 2025 30.5 -114.3 3.7 GULF OF CALIFORNIA M120 SG125 T76 D95 MA114 Z106 NG60
05 16 16 44 2025 33.7 -116.7 2.2 SOUTHERN CALIFORNIA M116 SG127 T76 D99 MA115 Z107 NG57
05 16 16 13 2025 31.7 -104.4 2.9 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 16 16 12 2025 35.6 -117.6 2.1 SOUTHERN CALIFORNIA M114 SG128 T77 D101 MA116 Z108 NG55
05 16 16 11 2025 52.0 -171.2 3.8 FOX ISLANDS, ALEUTIAN ISLANDS M74 SG122 T72 D137 MA109 Z101 NG35
05 16 14 37 2025 40.3 -124.7 2.8 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 16 14 26 2025 64.6 -140.2 3.1 SOUTHERN YUKON TERRITORY, CANA M83 SG142 T88 D132 MA128 Z120 NG25
05 16 13 40 2025 39.2 -119.0 2.1 NEVADA M110 SG131 T78 D104 MA118 Z109 NG51
05 16 13 15 2025 42.8 144.6 4.2 HOKKAIDO, JAPAN REGION M45 SG106 T73 D154 MA97 Z92 NG43
05 16 12 12 2025 38.8 -122.7 2.5 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 16 11 30 2025 16.8 -95.2 4.1 OAXACA, MEXICO M139 SG121 T85 D76 MA115 Z108 NG75
05 16 10 25 2025 31.5 -115.7 3.3 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 16 09 21 2025 -10.0 -74.8 4.0 CENTRAL PERU M165 SG102 T94 D46 MA103 Z101 NG103
05 16 07 56 2025 17.6 -62.0 3.7 ANTIGUA AND BARBUDA REGION M135 SG132 T115 D74 MA133 Z131 NG76
05 16 07 11 2025 36.5 -114.0 2.5 ARIZONA M115 SG131 T79 D100 MA119 Z110 NG55
May 16, 2025
Notable earthquakes and events:
An M 4.5 earthquake occurred in Vietnam today and was felt in Ha Dong Song Hong and in Dien Bien Mien Nui Va Trung Du, Vietnam.
An earthquake of M 4.7 also occurred in Tanzania today. It was felt with intensity up to V in Tanzania.
An unusual earthquake of M 5.0 was felt south of Ankara, Turkey today. It was felt with intensity up to VI in the epicentral area of Central Turkey.
An M 2.8 shook regions of the San Francisco Bay. California today and was felt with intensity II-III in the epicentral area.
VIETNAM
An M 4.5 earthquake occurred in Vietnam today and was felt in Ha Dong Song Hong and in Dien Bien Mien Nui Va Trung Du, Vietnam.
The last earthquake in Vietnam within about 150 km of today's epicenter
occurred on March 14, 2022 with M 4.5. Few earthquakes in Vietnam exceed
M>=5. A significantly larger event hit the region on December 30, 2010 with M 4.7.
At the time this summary noted:
"Xinhua reported the earthquake in Laos occurred in the northern Mountainous
region and was locally recorded with M 5.5. It was not strongly felt
in this remote region and was followed by an M 4.0 aftershock a few
hours later. The Vietnam News Agency did not have any immediate reports of
damage or casualties from this event. The event in Laos is the strongest in that general region since events of M 4.9
on Feb. 19, 2001 and of M 4.8 on September 28, 1996." (December 30, 2010)
Today's earthquake in Vietnam occurred near local solar noon and may have
been promoted by tidal or geomagnetic stresses which often maximize near this hour.
This earthquake is located near 144 degrees from the M 7.4 in the Drake Passage
of May 2 and may have been promoted by energy from that source. Other events
at this distance from the Drake Passage epicenter occurred today in Myanmar (M 4.6),
and southeastern China (M 3.9) and in Hindu Kush, Afghanistan (M 4.7).
O: 16MAY2025 04:17:21 21.8N 103.1E MW=4.5 EMSC Vietnam
TANZANIA
An earthquake of M 4.7 also occurred in Tanzania today. It was felt with intensity up to V in Tanzania with V in Mbeya at Vwawa and IV in Mbeya and III in Zanzibat and Pemba, Tanzania.
This event occurred near local solar midnight and may have been promoted by
tidal and/or geomagnetic effects which often maximize near this hour.
The last earthquake of M>=4.7 in Tanzania within about 200 km of today's epicenter
was an M 4.7 on October 15, 2021. The largest event in the area in the past 15 years was an
M 5.5 on March 21, 2019. At the time this summary noted:
"The largest earthquake in the world today was an M 5.5 in the area of Tanzania, Africa.
NEIC reported maximum intensity V in Libala, northern Zambia and IV in Tanzania at Laela Rukwa, Mbeya, Kiwira, Tanzania and II-III in Tanzania in Makungu, Chimala, and Sumbawanga Rukwa; in Zambia at Mungwi and at Mzuzu, Malawi and Kigali Ville de Kigali, Rwanda.
This earthquake occurred near the time of the full moon and was probably promoted
by tidal stresses. This event occurred within about an hour of local solar noon
a time when tidal stresses maximize in the earth. The last earthquake of M>=5.5
within about 200 km of this epicenter occurred as an M 5.5 on February 20, 2002
aslso with M 5.5. An M 6.5 hit the area on October 2, 2000. The last event within
about 250 km of today's epicenter was an M 5.9 in Malayi on February 24, 2017 about 250
km to the southwest and prior to that an M 5.5 on November 14, 2009 about 250 km to the northwest." (March 21, 2019)
This epicenter is near 101 degrees from the M 6.8 in Macquarie Island and
at the fourth node (90 degrees) from the Drake Passage and may have been promoted by energy from those sources.
Other earthquakes today at this distance from th Drake Passage occurred in
the Gulf of California (M 3.4) and Myanmar (M 3.9).
This earthquake occurred at the maximum of solar flare 3800 of C3.4 class, the
strongest in the past 24 hours. It was likely promoted by energy from this flare
as it occurred near local solar midnight. Data from thie flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3800 0044 0052 0055 C3.4 (May 16, 2025) 1.4E-03
Tanzania M 4.7 00:53 UT
Myanmar M 4.601:00 UT
Forecast 172226 had expected today's activity in Tanzania was likely around
May 16 to the northwest of today's epicenter in the area of Lake Victoria.
O: 16MAY2025 00:53:22 8.8S 33.2E MW=4.7 EMSC Tanzania
P: 16MAY2025 172226 6.0S 30.0E 3.0-4.5 BAAAA Lake Victoria area
CENTRAL TURKEY
An unusual earthquake of M 5.0 was felt south of Ankara, Turkey today. It was felt with intensity up to VI in the epicentral area of Central Turkey at Kulu, Konya; III in Ankara at Akyurt, Ankara, Kazan, Incesu, Samsun and in Thira,Kiklades, Greece, Iraq. and II in Israel.
EMSC reported it was felt with moderate intensity in Turkey in Istiklal, Ahievran, Karaoglan, Fabrikalar, Bahcelievler, Calilioz, Gaziosmanpasa, Yenisehit, Taspinar, Kadioglu, Ilkbahar, Oran, Yukari Dikmen anong other and as far as 500 km from the epicenter in Gulluk, Turkey, Cyprus, Syria.
This is the strongest earhtquake in Central Turkey within about 150 km of this
epicenter since an M 5.2 on February 25, 2023. The last event in this region with
significantly larger magnitude than today's M 5.0 occurred as an M 5.7 on December 20, 2007 with
and aftershock of M 5.6 on December 26, 2007. At the time of the last earthquakes
of M>=5 in this area this summary noted:
"An M 5.2-5.5 shook areas of central Turkey near Konya today. NEIC reported it was felt with intensity VI in Nigde and IV in Eregli, Konya and Aksaray with lesser shaking in Icel at Mersin, Tarsus, Erdemli.
This earthquake occurred about 200 km north of the M 7.8 of February 6, 2023
and is not part of the classical aftershock pattern following that event. Instead
it appears to be a separate epicenter possibly related to those major earthquakes
in early February through stress re-distribution along the Anatolian Fault.
The M 5.2 today occurred within minutes of locate solar noon and may have
been promoted by high tidal stresses which maximize near this hour." (February 25, 2023)
Forecast 172220 had expected this event was likely within about 25 km of this epicenter
in mid-May.
O: 15MAY2025 12:46:36 39.0N 33.2E MW=5.0 EMSC Central Turkey
P: 09MAY2025 172220 39.0N 33.0E 3.5-4.9 CAAAA Turkey
An M 2.8 shook regions of the San Francisco Bay. California today and was felt with intensity II-III in the epicentral area. NEIC reported intensity III in Alameda, Alamo, Danville, Lafayette, Moraga, Orinda, Dublin, San Ramon, Walnut Creek, Oakland, with II at Irvine, San Carlos, Alameda, Pleasant hill, Castro Valley, San Leandro, San Ramon, Walnut Creek, Elverta and Roseville.
EMSC reported light to moderate shaking in Central California at Oakland, Danville, Walnut Creek, and San Francisco.
EMSC reported a foreshock of M 2.4 was felt with moderate shaking at Oakland, California.
NEIC reported an earthquake of M 3.1 in Southern Idaho was felt with intensity up to II-III in the area(s) of Southern Idaho at Hagerman.
NEIC reported an earthquake of M 3.6 in Central Kansas was felt with intensity up to II-III in the area(s) of Central Kansas with IV in Americus, Herington, Hope; III in Kansas City, Overland Park, Chanute, Council Grove, White Sity, Wilsey, Hillsboro, Ramona, Kansas City and II in Topeka, Andover, Wichita and McPherson.
EMSC reported moderate shaking and loud rumble at Herington, Kansas.
NEIC reported an earthquake of M 4.0 in Puerto Rico was felt with intensity up to II-III in the area(s) of Puerto Rico at Caguas and Guaynabo.
This earthquake in Puerto Rico was at sub-solar conditions when it occurred.
That is, it occurred when the sun was directly overhead at local solar noon.
As it occurred within minues of local solar noon and with the strongest
solar flare of the day (M2.1 #3690) it is likely to have been promoted by
SFE from this flare.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3690 1708 1721 1727 M2.1 (May 15, 2025) 1.3E-02
Puerto Rico M 4.0 17:09 UT
NEIC reported an earthquake of M 5.0 in Hokkaido, Japan was felt with intensity up to II-III in the area(s) of Hokkaido, Japan with II at Furano.
NEIC reported an earthquake of M 2.5 in Southeastern Missouri was felt with intensity up to II-III in the area(s) of Southeastern Missouri with II in Sikeston and Saint Louis and in Paducah, Kentucky.
NEIC reported an earthquake of M 3.0 in Northern Hawaii was felt with intensity up to II-III in the area(s) of Northern Hawaii with III in Kamuela and II in Honokaa.
EMSC reported this quake was accompanied by a loud rumble for about 20 seconds at Ahualoa and Honokaa, Hawaii.
NEIC reported earthquake of M 3.8 and M 3.5 in northern Nevada were felt with intensity up to II-III in the area(s) of northern Nevada with II in Winnemucca.
These events are at the third node (120 degrees) from the Macquarie Is. quake of
M 6.8 of April 29 and may have been promoted by energy from that source.
Other earthquakes at this distance from Macquarie Is. today included continuing
series in west Texas, and an M 2.9 in southern Nevada and an M 2.9 in Vancouver, BC.
The events in Nevada area also at 106 degrees from the Drake Passage
Other events at this distance from the Drake Passage today occurred in southern Nevada and Utah and central
and northern California, in San Francisco, CA, (M 2.3, 2.8); Hawaii (M 3.0);
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3550 0300 0306 0308 C1.0 (May 15, 2025) 4.3E-04
3560 0338 0346 0348 C1.3 (May 15, 2025) 5.8E-04
Southern Idaho M 3.1 03:45 UT
3640 1332 1339 1347 C1.0 (May 15, 2025) 8.4E-04
Algeria M 3.4 13:36 UT
3650 1438 1444 1454 C1.2 (May 15, 2025) 3.5E-04
Iran M 4.0 14:41 UT
3730 1454 1458 1500 C1.2 (May 15, 2025) 6.3E-04
3660 1517 1527 1537 C3.6 (May 15, 2025) 3.2E-03
Pacific-Antarctic Ridge M 4.9 15:29 UT
3690 1708 1721 1727 M2.1 (May 15, 2025) 1.3E-02
Puerto Rico M 4.0 17:09 UT
3700 1947 1953 1959 C1.1 (May 15, 2025) 7.9E-04
South Sandwich Islands M 5.0 19:47 UT
3720 2127 2136 2140 C1.2 (May 15, 2025) 7.1E-04
Kansas M 3.6 21:33 UT
3750 2211 2219 2221 C9.6 (May 15, 2025) 2.3E-03
Baja California M 3.6 22:20 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active 17 quiet May 16 minor storms 18. Solar M-flare chance: 70% X-class: 20% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 13 22 15 11:00 4 46 119
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 16 10 25 2025 31.5 -115.7 3.3 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 16 09 21 2025 -10.0 -74.8 4.0 CENTRAL PERU M165 SG102 T94 D46 MA103 Z101 NG103
05 16 07 56 2025 17.6 -62.0 3.7 ANTIGUA AND BARBUDA REGION M135 SG132 T115 D74 MA133 Z131 NG76
05 16 07 43 2025 -5.5 -80.0 3.9 NEAR COAST OF NORTHERN PERU M163 SG106 T91 D52 MA104 Z102 NG98
05 16 07 11 2025 36.5 -114.0 2.5 ARIZONA M115 SG131 T79 D100 MA119 Z110 NG55
05 16 06 37 2025 38.6 -122.8 2.3 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 16 06 04 2025 44.7 -111.0 2.1 YELLOWSTONE NAT. PARK, WYOMING M109 SG139 T86 D107 MA126 Z118 NG47
05 16 05 34 2025 -30.5 -178.0 4.9 KERMADEC ISLANDS, NEW ZEALAND M97 SG44 T10 D74 MA30 Z21 NG117
05 16 05 17 2025 -34.9 -111.0 4.7 SOUTHERN EAST PACIFIC RISE M153 SG68 T56 D36 MA64 Z61 NG126
05 16 04 17 2025 21.8 103.1 4.5 VIETNAM M6 SG88 T91 D144 MA87 Z88 NG64
05 16 03 02 2025 27.6 139.9 4.3 BONIN ISLANDS, JAPAN REGION M40 SG91 T65 D144 MA82 Z78 NG58
05 16 02 33 2025 44.4 -115.2 3.2 SOUTHERN IDAHO M108 SG137 T83 D108 MA124 Z115 NG47
05 16 01 50 2025 38.8 -122.8 2.2 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 16 01 36 2025 54.2 -2.2 2.5 ENGLAND, UNITED KINGDOM M77 SG156 T145 D122 MA166 Z169 NG39
05 16 01 23 2025 40.4 -126.1 3.1 OFF COAST OF NORTHERN CALIFORN M106 SG129 T74 D108 MA115 Z107 NG50
05 16 01 19 2025 50.7 -130.4 2.8 VANCOUVER ISLAND, CANADA REGIO M96 SG135 T80 D118 MA121 Z113 NG39
05 16 01 10 2025 37.8 -122.1 2.8 SAN FRANCISCO BAY AREA, CALIF. M110 SG128 T75 D104 MA115 Z107 NG53
05 16 01 00 2025 25.2 98.2 4.6 MYANMAR-CHINA BORDER REGION M3 SG93 T96 D146 MA92 Z94 NG61
05 16 00 53 2025 -8.8 33.3 4.7 TANZANIA M68 SG87 T140 D88 MA100 Z109 NG99
05 16 00 12 2025 42.6 79.9 4.2 EASTERN KAZAKHSTAN M24 SG114 T115 D155 MA115 Z117 NG45
05 15 23 43 2025 15.7 -96.6 4.6 OAXACA, MEXICO M140 SG120 T83 D76 MA113 Z107 NG76
05 15 23 08 2025 31.7 -104.5 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 15 22 34 2025 39.1 -119.0 2.1 NEVADA M111 SG131 T78 D104 MA118 Z109 NG52
05 15 22 20 2025 31.8 -116.8 3.6 OFFSHORE BAJA CALIFORNIA, MEXI M118 SG125 T75 D97 MA114 Z105 NG59
05 15 22 05 2025 38.7 -117.2 2.1 NEVADA M112 SG131 T79 D103 MA119 Z110 NG52
05 15 21 33 2025 38.7 -97.0 3.6 KANSAS M118 SG140 T92 D98 MA130 Z122 NG53
05 15 20 58 2025 35.3 -117.8 2.5 SOUTHERN CALIFORNIA M114 SG128 T76 D100 MA116 Z107 NG55
05 15 20 56 2025 27.4 -111.3 3.5 GULF OF CALIFORNIA M124 SG124 T76 D91 MA113 Z105 NG64
05 15 20 03 2025 31.7 -104.3 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 15 19 47 2025 -55.9 -27.8 5.0 SOUTH SANDWICH ISLANDS REGION M126 SG59 T98 D22 MA70 Z75 NG149
05 15 19 17 2025 36.4 70.8 4.7 HINDU KUSH REGION, AFGHANISTAN M26 SG111 T121 D145 MA115 Z118 NG52
05 15 19 16 2025 0.5 121.7 4.6 MINAHASA, SULAWESI, INDONESIA M32 SG64 T66 D123 MA61 Z61 NG85
05 15 18 04 2025 36.6 -114.8 2.2 NEVADA M114 SG130 T79 D101 MA118 Z110 NG54
05 15 17 54 2025 31.0 -115.5 4.1 BAJA CALIFORNIA, MEXICO M119 SG125 T75 D96 MA114 Z106 NG60
05 15 17 09 2025 19.5 -65.3 4.0 PUERTO RICO REGION M134 SG133 T113 D76 MA133 Z130 NG74
05 15 17 01 2025 57.1 -157.6 3.3 ALASKA PENINSULA M80 SG131 T78 D134 MA117 Z109 NG31
05 15 16 31 2025 12.0 125.4 4.1 SAMAR, PHILIPPINES M29 SG75 T67 D134 MA70 Z69 NG73
05 15 15 29 2025 -54.5 -135.5 4.9 PACIFIC-ANTARCTIC RIDGE M129 SG43 T44 D36 MA38 Z36 NG143
05 15 15 18 2025 38.8 -122.8 2.3 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 15 14 41 2025 26.8 58.8 4.0 SOUTHEASTERN IRAN M34 SG107 T131 D132 MA114 Z120 NG62
05 15 14 01 2025 -1.1 122.1 4.5 SULAWESI, INDONESIA M34 SG63 T65 D121 MA59 Z59 NG86
05 15 13 15 2025 17.6 -95.2 4.0 VERACRUZ, MEXICO M139 SG122 T85 D77 MA115 Z109 NG75
05 15 13 05 2025 42.8 143.3 5.0 HOKKAIDO, JAPAN REGION M44 SG106 T74 D155 MA97 Z92 NG43
05 15 13 03 2025 -4.9 -80.8 4.0 PERU-ECUADOR BORDER REGION M162 SG106 T91 D52 MA105 Z102 NG98
05 15 12 59 2025 -55.2 -135.7 5.0 PACIFIC-ANTARCTIC RIDGE M129 SG42 T45 D36 MA38 Z36 NG144
05 15 12 51 2025 12.6 142.3 4.7 MARIANA ISLANDS REGION M45 SG76 T54 D130 MA67 Z63 NG73
05 15 12 46 2025 39.1 33.3 5.0 CENTRAL TURKEY M55 SG129 T150 D127 MA138 Z144 NG52
05 15 12 29 2025 41.1 -116.8 3.0 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 15 12 03 2025 37.8 -122.1 2.3 SAN FRANCISCO BAY AREA, CALIF. M110 SG128 T75 D104 MA115 Z107 NG53
05 15 12 03 2025 31.7 -104.4 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 15 11 35 2025 36.5 -89.6 2.5 SOUTHEASTERN MISSOURI M121 SG141 T97 D94 MA133 Z125 NG56
05 15 11 00 2025 43.8 100.0 3.7 CENTRAL MONGOLIA M22 SG110 T101 D164 MA108 Z107 NG43
05 15 10 56 2025 31.6 -114.5 3.2 GULF OF CALIFORNIA M119 SG126 T76 D96 MA115 Z107 NG59
05 15 10 22 2025 41.1 -116.7 2.2 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 15 09 51 2025 31.7 -102.0 2.0 WESTERN TEXAS M123 SG132 T86 D92 MA122 Z114 NG60
05 15 09 39 2025 19.2 -65.1 3.2 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 NG74
05 15 09 14 2025 17.3 -94.4 4.3 VERACRUZ, MEXICO M139 SG122 T86 D77 MA115 Z109 NG75
05 15 09 08 2025 19.8 -155.6 3.0 ISLAND OF HAWAII, HAWAII M98 SG98 T43 D104 MA84 Z76 NG68
05 15 08 27 2025 -26.4 -178.7 4.8 SOUTH OF FIJI ISLANDS M95 SG47 T7 D78 MA33 Z25 NG112
05 15 08 06 2025 32.4 -101.7 2.0 WESTERN TEXAS M123 SG133 T86 D93 MA123 Z115 NG59
05 15 07 55 2025 24.2 -110.1 3.4 BAJA CALIFORNIA SUR, MEXICO M127 SG122 T76 D88 MA112 Z104 NG67
05 15 07 23 2025 27.1 58.7 3.8 SOUTHEASTERN IRAN M34 SG108 T131 D132 MA115 Z120 NG62
05 15 07 18 2025 43.6 -110.4 2.4 WYOMING M110 SG138 T86 D106 MA126 Z117 NG48
05 15 07 18 2025 21.9 96.8 3.9 MYANMAR M0 SG90 T96 D143 MA90 Z92 NG65
05 15 07 12 2025 18.8 -107.1 4.3 OFF COAST OF JALISCO, MEXICO M133 SG118 T76 D82 MA109 Z102 NG73
05 15 07 08 2025 41.2 -116.8 3.4 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 15 07 06 2025 41.1 -116.8 3.7 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
May 15, 2025
Notable earthquakes and events:
A strong earthquake of M 5.9-6.0 hit the Banda Sea of Indonesia today. It was felt with moderate intensity in Lesser Timor, Indonesia.
It was probably promoted by the M5.3 flare of April 14 as noted in the previous issues of this summary:
"The solar flare (of X1.2) was followed by a second strong flare of M5.3 around 03:30 UT on May 14.
The M5.3 flare was accompanied by a strong M 6.4 at 04:15 UT in Tonga.
The Banda Sea of Indonesia is directly was local solar noon when this flare was maximized. This area is likely to see a strong earthquake in the next day due to SFE." (April 14, 2025)
The solar flare of X1.2 was followed by a major X2.5 flare which occurred about 08:00 UT on
May 14, 2025. It was followed by a series of moderate quakes and may promote
seismicity in (among other areas) the west coast of the U.S. ( at 120 West longitude - near local solar midnight at the time of the flare)
and in central Asia (60 East longitude) - local solar noon. This flare is the strongest
since a X9.0 on October 3, 2024 (SWPC #5530). Today's flares are likely to
trigger a geomagnetic storm in the next two days (and a bright aurora and
electronic malfunctions). Earthquakes of M 4.4 in Pakistan and M 5.1 in the
South Indian Ocean occurred between 60 and 70 East longitude today.
The full moon arrived on May 12, 2025 at 16:56 UT. Longitudes which are sub-solar (local solar noon) are near 75 West while those at local solar midnight are near 105 East longitude. In the west these include areas of Central America and the Caribbean and the west coast of South America while in the east these areas include western Indonesia, southeast and central Asia. These areas are most likely to see tidal triggering with this full moon.
BANDA SEA
An earthquake of M 5.9-6.0 occurred today in the Banda Sea of Indonesia.
BMG reported it was felt within about 100 km of the epicenter with intensity up to V.
NEIC reported it with M 5.9 in Kep. Barat Daya was felt with intensity III in Dili, East Timor, Indonesia.
EMSC reported light to moderate shaking in Dili, Timor-Leste, Indonesia.
The last event in the Banda Sea within about 200 km from today's epicenter of
significantly larger magnitude than M 5.9 occurred on December 29, 2021. At the
time this summary noted:
A major earthquake of M 7.3-7.4 occurred today in the region of East Timor, Indonesia today. NEIC reported maximum intensity VI in East Timor at Los Palos; V in Baucau, Dili Dili, Bazaitete; IV in Lautem, Manatuto, Metinaro, Sual Coya, Oecussi and Ambon.
BMG (the local network) gave this event M 7.4 and reported it was felt with intensity V-VI in Tiakur, Tepa; IV in Saumlaki, III-IV in Darwin, Australoia, Waingapu; III in Rote, II in Sabu, Kota Sorong, Raja Ampat and III in Tual, Indonesia.
BMC reported an aftershock of M 5.6 in Timur, Indonesia was felt with intensity III in the area(s) of Indonesia at Bolaang Mongondow Timur, Kabupaten Gorontalo, Koita Gorontalo, III in Poso, Minahasa Selatan, MI in Gorontalo Utara, Kotamobagu and Tomohon.
This may have been promoted by strong tidal stresses associated with the previous
full moon
...
The last earthquake in the world of M>=7.4 occurred a month ago in Northern Peru with
M 7.4-7.5. The last earthquake in the world of larger magnitude was an M 8.1 on
August 12, 2021. Today's earthquake near the geomagnetic equator occurs at end of the strongest solar activity of the
new solar active period and had been expected in this summary on December 22 as:
"Historically major changes in sunspot number has been followed within several days
by major or great earthquakes, especially after long periods of relative solar
quiet (as in the current situation). A precautionary global seismic alert is therefore being posted by this
summary for the next week with a strongly increased likelihood of a major
event in this time period." (December 22-23, 2021)
Today's event in Timor is the strongest within about 200 km in at least 30 years.
Earthquakes about 250 km northeast of today's epicenter occurred on June 24, 2019
with M 7.3 and M 7.5-7.6 on January 27, 2006. It occurred at 103 degrees from
the strong activation of seismicity in Crete, Greece and may have
been promoted by energy from that source." (December 29, 2021)
Today's epicenter is located at the sixth node from the M 7.1 in Tonga of March 30
(node 6) and at the seventh node (52 degrees) from the Macquarie Islands (M 6.8) and New Zealand of March 25 (M 6.8)
and may have been promoted by energy from those sources.
As noted in the previous issue of this summary today's event in the Banda
Sea is closely connected to the M5.3 solar flare of May 14 as:
"The solar flare (of X1.2) was followed by a second strong flare of M5.3 around 03:30 UT on May 14.
The M5.3 flare was accompanied by a strong M 6.4 at 04:15 UT in Tonga.
The Banda Sea of Indonesia was directly at local solar noon when this flare was maximized. This area is likely to see a strong earthquake in the next day due to SFE." (May 14, 2025)
Forecast 172220 had expected a moderately strong earthquake within about 25 km
of this epicenter was likely around May 12.
O: 15MAY2025 00:50:52 7.1S 126.1E MW=5.9 EMSC Banda Sea
O: 15MAY2025 00:50:52 7.2S 126.1E MW=6.0 BMG Banda Sea, Indonesia
P: 12MAY2025 172220 7.0S 126.0E 4.0-5.5 BAAAA Banda Sea
A pair of earthquakes of M 5.2 and 4.8 were felt today in northern Peru near the border with Ecuador. NEIC reported they were felt with intensity III in Ecuador at Eloy Alfaro, Guayas.
These earthquakes are located at 103 degrees (node 7) from the M 6.8 in Macquarie Island
of April 29 at 51.5 degrees (node 7) from the Drake Passage event of May 2 and may have been promoted by energy from that source.
The strongest earthquake in the U.S. or Canada today was an M 3.9-4.0 in northern Nevada near Valmy. NEIC reported maximum intensity IV in Mountain City, Nevada and II in Nevada at Austin, Gardnerville, Winnemucca and Sring Creek with II also felt in Boise, Idaho.
The mainshock was followed by a lightly felt aftershock of M 2.8 and two M 3.0 foreshocks.
This activity was located at the third node (120 degrees) from the Macquarie Island
earthquake of April 29 (M 6.8) and may have been promoted by energy from that source.
Earthquakes in west Texas were also located today at this distance from the Macquarie
epicenter. These epicenters are also at 106 degrees from the M 7.4 in the Drake Passage
of May 2 and may have been promoted from that source as well. Other earthquakes
at this distance from the Drake Passage today were an M 3.3 west of Hawaii and
a number of light earthquakes in Central California and southern California.
An M 3.0 earthquakes was reported off the coast of western Oregon today following
a major solar flare. This is an area where a volcanic eruption is expected
in the near future and today's event may indicate that event could occur soon.
Data for this solar flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3440 1104 1119 1131 M7.7 (May 14, 2025) 7.2E-02
Costa Rica M 4.5 11:24 UT
Off coast of Oregon M 3.0 11:24 UT
An earthquake of M 3.3 occurred today west of the island of Hawaii. NEIC reported
it was felt with intensity III in Hawaii at Captain Cook, Kailua Kona, Kealakekua, and II in Holualoa.
EMSC reported small jolt in Hawaii at Kailua Kona and Kealakekua.
NEIC reported an earthquake of M 3.0 in Southern Idaho was felt with intensity up to II-III in the area(s) of Southern Idaho at Challis with IV.
NEIC reported an earthquake of M 3.6 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska with III in Willow, Wasilla and II in Girdwood, Eagle River and Anchorage.
NEIC reported an earthquake of M 2.7 in Oklahoma was felt with intensity up to II-III in the area(s) of Oklahoma in Owasso and Dover with III and II in Oklahoma City.
NEIC reported an earthquake of M 3.6 in the Cook Strait, New Zealand was felt with intensity up to II-III in the area(s) of the Cook Strait, New Zealand with III in Wanganui and II in New Plymouth, Taranaki.
GeoNet reported the following parameter for this event:
O: 14MAY2025 08:45:20 40.2S 174.5E MB=4.1 GEONET Felt with moderate to strong intensity in the area of French Pass, New Zealand and in southern North Island and northern South Island. 1369 reports of felt events were made of which 920 reported weak and 427 light intensity with 20 reports of moderate shaking and 0 with strong and 0 severe and 2 with extreme intensity came from the area.
NEIC reported an earthquake of M 3.1 in northern Washington State was felt with intensity up to II-III in the area(s) of northern Washington State with III in Oroville, Tonasket and II in Omak and Riverside.
EMSC reported an earthquake of M 4.7 in El Salvador was felt with intensity up to IV in the area(s) of El Salvador at San Vicente.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3300 0145 0157 0208 C1.2 (May 14, 2025) 2.8E-04
3320 0208 0215 0221 C2.1 (May 14, 2025) 1.5E-03
Costa Rica M 4.4 02:37 UT
Canary Is. M 3.2 02:07 UT
Western Texas M 2.5 02:08 UT
3350 0305 0325 0335 M5.3 (May 14, 2025) 4.8E-02
Tonga M 6.4 04:15 UT
Sumatra M 4.8 03:16 UT
Banda Sea, Indonesia M 5.9-6.0 00:50 UT (May 15, 2025)
3380 0700 0720 0734 C5.5 (May 14, 2025) 1.4E-03
3390 0736 0745 0751 M1.2 (May 14, 2025) 8.5E-03
Los Angeles, California M 2.3 07:54 UT
New Guinea M 4.1 07:42 UT
3410 0804 0825 0831 X2.7 (May 14, 2025) 2.1E-01
South Island, New Zealand M 3.6 08:04 UT
Molucca Sea M 4.3 08:07 UT
Honshu M 4.2 08:45 UT
Cook Strait, N.Z. M 4.1 08:45 UT
Myanmar M 4.0 09:07 UT
3440 1104 1119 1131 M7.7 (May 14, 2025) 7.2E-02
Costa Rica M 4.5 11:24 UT
Off coast of Oregon M 3.0 11:24 UT
3460 1413 1427 1433 C2.4 (May 14, 2025) 2.5E-03
New Guinea M 4.1 14:35 UT
3470 1643 1651 1655 C1.6 (May 14, 2025) 6.2E-04
3500 1743 1753 1759 C1.8 (May 14, 2025) 1.7E-03
3480 1759 1811 1818 M4.7 (May 14, 2025) 3.0E-02
Northern Peru M 5.2 20:13 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 15 and 17 quiet May 16. Solar M-flare chance: 75% X-class: 30% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 16 24 13 17:00 5 53 122
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 15 07 12 2025 18.8 -107.1 4.3 OFF COAST OF JALISCO, MEXICO M133 SG118 T76 D82 MA109 Z102 NG73
05 15 07 08 2025 41.2 -116.8 3.4 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 15 07 06 2025 41.1 -116.8 3.7 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 15 06 22 2025 48.8 -119.5 3.0 WASHINGTON M102 SG138 T84 D113 MA125 Z116 NG42
05 15 06 17 2025 66.5 -17.6 3.4 ICELAND REGION M78 SG168 T131 D128 MA167 Z161 NG27
05 15 05 05 2025 37.1 140.6 3.8 EASTERN HONSHU, JAPAN M41 SG100 T71 D152 MA91 Z87 NG48
05 15 04 55 2025 47.4 -124.1 2.1 OLYMPIC PENINSULA, WASHINGTON M102 SG135 T80 D113 MA122 Z113 NG43
05 15 04 31 2025 17.7 -95.0 4.2 VERACRUZ, MEXICO M139 SG122 T86 D77 MA115 Z109 NG74
05 15 04 19 2025 18.2 -68.0 3.4 MONA PASSAGE, DOMINICAN REPUBL M137 SG131 T110 D74 MA131 Z127 NG75
05 15 03 45 2025 44.6 -114.3 3.0 SOUTHERN IDAHO M108 SG137 T84 D108 MA124 Z116 NG46
05 15 03 26 2025 40.3 -124.4 2.2 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 15 03 10 2025 39.4 -120.3 2.4 NORTHERN CALIFORNIA M110 SG130 T77 D105 MA117 Z109 NG51
05 15 02 40 2025 38.2 -117.8 2.1 NEVADA M112 SG130 T78 D103 MA118 Z109 NG53
05 15 01 50 2025 35.3 -118.6 2.1 CENTRAL CALIFORNIA M114 SG128 T76 D101 MA115 Z107 NG55
05 15 01 41 2025 -20.7 -177.8 4.5 FIJI REGION M94 SG53 T3 D83 MA39 Z30 NG107
05 15 01 40 2025 13.2 50.8 4.5 GULF OF ADEN M43 SG99 T136 D116 MA108 Z115 NG76
05 15 00 50 2025 -7.1 126.1 6.0 KEPULAUAN BARAT DAYA, INDONESI M41 SG56 T59 D115 MA52 Z52 NG92
05 15 00 50 2025 -7.1 126.1 5.9 KEPULAUAN BARAT DAYA, INDONESI M41 SG56 T59 D115 MA52 Z52 NG92
05 14 23 48 2025 66.6 -17.8 4.2 ICELAND REGION M78 SG168 T131 D128 MA167 Z161 NG27
05 14 23 45 2025 36.1 -120.2 2.8 CENTRAL CALIFORNIA M112 SG128 T75 D102 MA115 Z107 NG54
05 14 22 46 2025 31.1 -116.0 3.4 BAJA CALIFORNIA, MEXICO M118 SG125 T75 D96 MA114 Z105 NG60
05 14 22 39 2025 13.0 -89.0 4.0 OFFSHORE EL SALVADOR M144 SG120 T89 D71 MA115 Z110 NG79
05 14 22 30 2025 61.5 -151.3 3.6 SOUTHERN ALASKA M81 SG136 T83 D134 MA122 Z114 NG27
05 14 22 15 2025 31.4 -115.5 3.2 BAJA CALIFORNIA, MEXICO M118 SG126 T76 D96 MA114 Z106 NG60
05 14 22 02 2025 -44.0 169.6 3.7 SOUTH ISLAND OF NEW ZEALAND M94 SG27 T27 D68 MA13 Z5 NG130
05 14 21 22 2025 -6.1 147.8 4.5 EASTERN NEW GUINEA REG., P.N.G M57 SG58 T39 D110 MA48 Z44 NG91
05 14 21 20 2025 40.5 -126.0 2.5 OFF COAST OF NORTHERN CALIFORN M106 SG129 T75 D108 MA115 Z107 NG50
05 14 21 01 2025 -11.8 -77.7 4.1 NEAR COAST OF CENTRAL PERU M168 SG100 T91 D45 MA100 Z98 NG105
05 14 20 29 2025 31.6 -104.5 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 14 20 21 2025 -20.3 -177.5 4.5 FIJI REGION M94 SG53 T3 D83 MA39 Z31 NG106
05 14 20 13 2025 -5.9 -81.1 5.2 NEAR COAST OF NORTHERN PERU M163 SG105 T90 D51 MA104 Z101 NG99
05 14 20 12 2025 31.6 -104.3 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 14 20 08 2025 -5.9 -81.6 4.1 NEAR COAST OF NORTHERN PERU M163 SG105 T90 D51 MA103 Z100 NG99
05 14 16 33 2025 -56.8 -140.9 5.2 PACIFIC-ANTARCTIC RIDGE M126 SG39 T43 D38 MA35 Z33 NG145
05 14 16 33 2025 33.6 140.6 4.5 IZU ISLANDS, JAPAN REGION M40 SG97 T68 D149 MA88 Z84 NG52
05 14 16 19 2025 12.6 -88.2 4.7 OFFSHORE EL SALVADOR M145 SG120 T90 D71 MA115 Z110 NG80
05 14 16 08 2025 36.0 -97.9 2.0 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 14 16 01 2025 36.0 -97.9 2.7 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 14 15 51 2025 15.4 -94.4 4.0 OFFSHORE CHIAPAS, MEXICO M141 SG120 T85 D75 MA114 Z108 NG77
05 14 15 35 2025 35.3 -119.4 2.0 CENTRAL CALIFORNIA M113 SG127 T75 D101 MA115 Z106 NG55
05 14 15 09 2025 41.2 -116.7 2.0 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 14 14 35 2025 -1.3 134.4 4.1 NEAR N COAST OF PAPUA, INDONES M44 SG62 T53 D119 MA55 Z53 NG86
05 14 13 32 2025 41.2 -116.7 2.8 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 14 13 26 2025 38.8 -122.8 2.0 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 14 12 51 2025 41.2 -116.7 2.1 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 14 12 35 2025 41.1 -116.8 4.0 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 14 12 35 2025 41.1 -116.8 3.9 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 14 12 02 2025 41.2 -116.7 3.0 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 14 12 01 2025 41.1 -116.9 3.0 NEVADA M110 SG133 T80 D105 MA121 Z112 NG50
05 14 11 24 2025 43.1 -126.6 3.0 OFF COAST OF OREGON M104 SG131 T76 D110 MA117 Z108 NG47
05 14 11 24 2025 10.4 -86.2 4.5 OFF COAST OF COSTA RICA M147 SG119 T91 D68 MA115 Z110 NG82
05 14 10 47 2025 -24.0 70.2 4.9 MID-INDIAN RIDGE M52 SG57 T103 D92 MA67 Z75 NG112
05 14 10 36 2025 17.9 -98.4 4.0 GUERRERO, MEXICO M137 SG121 T83 D78 MA114 Z107 NG74
05 14 10 30 2025 25.0 94.8 3.9 MYANMAR-INDIA BORDER REGION M3 SG93 T99 D145 MA94 Z96 NG62
05 14 10 21 2025 66.5 -17.7 3.7 ICELAND REGION M78 SG168 T131 D128 MA167 Z161 NG27
05 14 10 16 2025 19.6 -156.1 3.2 HAWAII REGION, HAWAII M98 SG98 T43 D105 MA84 Z75 NG68
05 14 10 02 2025 31.5 69.2 4.4 PAKISTAN M25 SG108 T122 D141 MA112 Z116 NG57
05 14 09 55 2025 19.7 -106.5 3.8 OFF COAST OF JALISCO, MEXICO M133 SG119 T77 D82 MA110 Z103 NG72
05 14 09 34 2025 17.2 -94.7 4.0 VERACRUZ, MEXICO M139 SG122 T86 D76 MA115 Z109 NG75
05 14 09 33 2025 -5.5 147.2 4.8 EASTERN NEW GUINEA REG., P.N.G M57 SG58 T40 D111 MA48 Z45 NG91
05 14 09 07 2025 22.1 96.4 4.0 MYANMAR M0 SG90 T97 D143 MA91 Z92 NG64
05 14 08 52 2025 18.0 -68.3 3.4 DOMINICAN REPUBLIC REGION M137 SG131 T110 D74 MA130 Z127 NG75
05 14 08 45 2025 -40.2 174.6 4.1 COOK STRAIT, NEW ZEALAND M95 SG33 T22 D69 MA19 Z10 NG126
05 14 08 45 2025 -40.2 174.6 3.6 COOK STRAIT, NEW ZEALAND M95 SG33 T22 D69 MA19 Z10 NG126
05 14 08 32 2025 38.6 141.5 4.2 NEAR EAST COAST OF HONSHU, M42 SG102 T71 D153 MA93 Z88 NG47
05 14 08 07 2025 -0.1 124.4 4.3 MOLUCCA SEA M35 SG64 T63 D122 MA59 Z59 NG85
05 14 07 54 2025 34.1 -117.3 2.3 GREATER LOS ANGELES AREA, CALI M115 SG127 T76 D99 MA115 Z107 NG57
05 14 07 42 2025 -0.2 134.6 4.1 NEAR N COAST OF PAPUA, INDONES M43 SG63 T54 D120 MA56 Z54 NG85
May 14, 2025
Notable earthquakes and events:
A major solar flare of X1.2 (SWPC #3220) occurred today about 15:30 UT. This is the strongest solar flare reported by SWPC since flare 5990 of X2.0 on February 23, 2025.
A solar flare of X1.1 occurred on March 28, 2025 and was associated with the M 7.7 in Myanmar of the same date.
Major solar flares can help promote strong earthquakes in the hours after the flare.
The X1.2 (3220) solar flare was followed by a second strong flare of M5.3 maximizing around 03:35 UT on May 14.
Longitudes at local solar noon when this flare was maximized are near 126 East longitude and include
the Banda Sea, Indonesia. SFE from this flare could trigger a strong earthquake in this area in the next day.
The M5.3 flare was accompanied by a strong M 6.4 at 04:15 UT in Tonga.
This flare was followed by a major X2.5 flare which occurred about 08:00 UT on
May 14, 2025. It was followed by a series of moderate quakes and may promote
seismicity in (among other areas) the west coast of the U.S. ( at 120 West longitude - near local solar midnight at the time of the flare)
and in central Asia (60 East longitude) - local solar noon. This flare is the strongest
since a X9.0 on October 3, 2024 (SWPC #5530). Today's flares are likely to
trigger a geomagnetic storm in the next two days (and a bright aurora and
electronic malfunctions).
An earthquake of M 6.2 in Crete, Greece followed the X1.2 flare. This quake was felt widely in the region of Crete.
An earthquake of M 5.9 occurred in the area of Jalisco, Mexico near local solar noon today. It was felt with moderate intensity in Jalisco.
A second earthquake hit the region Iceland with M 4.5 today. This follows an M 4.7 occurred north of Iceland yesterday. It is not associated with current volcanic activity in the area.
The full moon arrived on May 12, 2025 at 16:56 UT. Longitudes which are sub-solar (local solar noon) are near 75 West while those at local solar midnight are near 105 East longitude. In the west these include areas of Central America and the Caribbean and the west coast of South America while in the east these areas include western Indonesia, southeast and central Asia. These areas are most likely to see tidal triggering with this full moon.
TONGA
An earthquake of M 6.4 hit the region of Tonga today. NEIC reported it was felt with intensity III in Tongatapu, Tonga at Tofoa-Koloua and II in Nuku'alofa.
The last earthquake of M>=6.4 in Tonga within about 200 km of this epicenter
was an M 7.0-7.1 on March 30, 2025. At the time this summary noted:
"A strong earthquake of M 7.1 hit the region of Central Tonga today. NEIC initially reported it
was felt with intensity IV in Tongatapu, Tonga at Tofoa-Koloua and in Alofi, and Makefu, Niue and III in Mu'a, Nuku'alofa and Neiafu, Tonga.
A foreshock of M 4.4 occurred early on March 29 near the mainshock epicenter (see earthquake list below). This event occurred within minutes of local solar midnight and was probably
promoted by a combination of strong tidal stresses with the solar eclipse of
March 29; the M 7.7 in Myanmar of March 28 and the recent strong geomagnetic
storm which effects are strongest at local solar noon and midnight. This earthquake
may have generated a regional moderate tsunami, but a Pacific-wide tsunami is
unlikely. Nevertheless residents in the Tonga/Fiji/New Zealand area ought to
seek higher ground and not approach the ocean in the next couple of hours.
Initial observations by JTWC and PTWC do not indicate a hazardous tsunami but warns for dangeroud sea level fluctuations and strong currents are still in effect.
The last earthquake in Tonga within about 200 km of today's epicenter with M>=7.1
occurred as a great M 8.0 on May 3, 2006, the only such event in the past 35 years.
Earthquake about 300 km from today's epicenter since 1990 also occurred on
November 11, 2022 (M 7.3) and October 14, 1997 (M 7.8). The earthquake of
November 11, 2022 followed a similar eclipse in October, 2022 and had been
in this summary as a possible area for a major earthquake at this time" (March 30, 2025)
This event was probably promoted by SFE from a strong M5.3 solar flare which
reached maximum less than an hour before this earthquake. Data for this flare
from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3350 0305 0325 0335 M5.3 (May 14, 2025) 4.8E-02
Tonga M 6.4 04:15 UT
Forecast 172430 had expected this event in Tonga within about 200 km was likely
around May 13, 2025.
O: 14MAY2025 00:15:38 18.7S 175.3W ML=6.4 NEIC Tonga
P: 13MAY2025 172430 17.0S 174.0W 4.0-5.5 ABAAA Tonga Islands
CRETE, GREECE, CYPRUS
An M 6.1-6.3 shook large areas of Crete, Greece and Cyprus in the eastern Mediterranean today. NEIC reported maximum shaking of VI in the epicentral area at Karpathos, Dodecanese Islands, Greece and as far as Faraskur, Egypt. Intensity V was felt in Egypt at Port Said, Damanhoor,El Mahmoodia, Qowesna, Benha, Mashtool el Sook; Saudi Arabia and Lasithi, Greece. Lesser shakeing was reported in Egypt, with IV in Cairo and Gizeh, in Crete, Greece, and the Dodecanese Islands, Israel, Palestine, Turkey, Jordan, Lebanon, Malta, and Syria.
This earthquake is the strongest in the region of Crete since an M 6.4 on October 12, 2021.
At the time this summary noted:
"The strongest geomagnetic storm in more than three years occurred today. Bright, mostly
green aurora were seen throughout most of North America and Asia with this storm.
The height of the storm occurred between 09:00 and 10:00 UT. At the same time
an M 6.5 occurred in the sub-solar region of Crete, Greece and the Dodecanese
Islands.
...
A strong aftershock of M 6.4 also hit eastern Crete, Greece today. This event was
reported with maximum intensity VII in Crete at Sitia; IV in Ierapetra, Iraklion, and II-III in Nea Alikarnassos and Khanion, Greece.
Many buildings were damaged including a chapel which collapsed. People fled
from their homes during the quake but there were no immediate reports of casualties.
After a lull in the geomagnetic storm, it resumed about 07:00 UT on October 12, 2021
with high latitude AP 7 at about 09:00. It is likely that this helped
promote the earthquake in Crete at this same time. A strong M 6.0 hit Crete
about 200 km west of today's epicenter occurred on September 27, 2021, an earthquake which killed one and did considerable damage, and this may
be a regional aftershock of that event. The last earthquake of larger magnitude
in Crete occurred on May 2, 2020 with M 6.6, the strongest in the region
in the past 30 years. A similar M 6.6 about 200 km northeast of this occurred
on July 20, 2017. The only event of M>=6.4 within about 100 km of today's
event in the past 30 years was an M 6.4 on July 1, 2009. Today's earthquake
in Crete occurred within about an hour of local solar noon and was probably
promoted by high tidal stresses which maximize near this hour." (October 12, 2021)
This earthquake occurred near the maximum output of solar flare #3270 - a C2.3 class
event. Data from SWPC for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3270 2234 2241 2253 C2.3 (May 13, 2025) 2.0E-03
Dodecanese Is. M 6.0 22:51 UT
This epicenter is located at 121 degrees (node 5) from the M 7.4 in the Drake Passage of May 2 and may have been promoted by energy from that source.
Other earthquakes at this distance from the Drake Passage today occurred in
the Molucca Sea, Indonesia and as an M 4.4 in the Naples, Italy area.
This event may also have been promoted by a strong mid-latitude meteorological
storm with its center currently near the antipode of the earthquake in Crete.
Forecast 172292 had expected this event in the Aegean Sea within about 25 km was likely
around May 13, 2025.
O: 13MAY2025 22:51:15 35.2N 27.0E ML=6.1 EMSC Crete, Greece
P: 13MAY2025 172292 35.0N 27.0E 3.0-4.6 AAAAA Aegean Sea
JALISCO, MEXICO
An M 5.9 earthquake occurred off the west coast of Jalisco, Mexico today. NEIC reported it was felt with intensityup to III in Jalisco at Puerto Vallarta and in Nayarit, Mexico at Le Penita de Jaltemba.
This earthquake occurred near local solar noon and may have been promoted by
strong tidal stresses with the full moon of May 12, 2025 (see forecast above).
It is the strongest earthquake in the region of Jalisco, Mexico since an M 6.6 on
January 21, 2016. At the time this summary noted:
"A strong earthquake of M 6.6 hit off the coast of Jalisco, Mexico today. This
activity followed several days of unusual activity in North America and had been anticipated in this summary on January 18 as follows:
"A series of unusual earthquakes hit today from Cuba and Honduras (M 4.5-5.1) to Virginia (M 3.0)
to Texas (M 3.5) and as far north as northern Alaska (M 4.8, 4.6) today.
This may represent a sudden motion of the North American Plate. If so, further
unusual seismicity is likely, especially along the western boundary of the
North American plate, in the next several days." (January 18, 2016)
It should not surprise readers of this summary that a major tropical cyclone in the
South Pacific Ocean reached major status today. The eye of this storm is currently
at 18S 73E. This is antipodal to the epicenter of the Jalisco earthquake (18-19N
107W). Readers recall that two locations are exactly antipodal if their latitudes
are the same and in opposite hemisphers (compare 18N and 18S) and their
longitudes in opposite hemispheres and numerically add to 180 (consider 73E+107W=180).
So, the main trigger for this earthquake in Jalisco appears microseismis from Tropical
Cyclone Corentin (08S). Other promoters appear to be the strongest geomagnetic storm
of the year 2016 which peaked near the time of this earthquake and tidal
effects from the upcoming full moon.
NEIC reported this earthquake in Jalisco was felt in Mexico in Jalisco at Guadalajara, Guzman, Las Juntas, and Puerto Vallarta; in San Luis Potosi and in Todos Santos, Baja California Sur. No damage or tsunami were reported with this earthquake.
The last earthquake of M>=6.6 within about 200 km of this epicenter occurred
on May 1, 1997 with M 6.9, the only such earthquake in the past 25 years. This
area was the landfall region for Hurricane Patricia which hit the area on October
23-24, 2015. At 170-210 kts, this was considered the strongest Hurricane ever
to hit North America. In the summary issue for October 23, 2015 it was noted:
"Hurricane Patricia continued south of Jalisco, Mexico today with winds up to 170 kts.
Wind speeds rose from 70 kts at this time yesterday to 170 kts today, an incredible increase in such a short time. This is one of the strongest storms to hit the coast of Mexico in years. NHC has issued
a warning that landfall of this category 5 hurricane could be potentially catastrophic
in the region of Jalisco, Mexico. At 170 kts (195 mph) this is the highest wind speed ever
recorded for a hurricane in the eastern north Pacific. Hurricane Linda in 1997 came in at 160 kts.
The estimated central pressure of 892 mb also braks the record from the lowest
pressure of an east Pacific hurricane. It is expected to track to the NNW over the next several days. Seismicity in Western Mexico could increase
while this storm is in the area. A moderate earthquake is possible in the region
as this system makes landfall in the next several days. Landfall is expected near
Manzanillo around October 23-24. This active area at about 17-18N and 103-104 West longitude
could also see a moderate to large earthquake associated with landfall of Patricia." (October 23-24, 2015)
There was some activity in the area at the time of landfall but it appears that
the regional activation expected waited until this time for a strong earthquake
to occur. There has been some precursory activity in the area suggestive of a
larger upcoming event. For example on January 8, 2016 an M 5.3 occurred within
25 km of this epicenter. At the time is summary noted:
"The strongest earthquake in North America today was an M 5.3 southwest of Puerto Vallarta,
Jalisco, Mexico. NEIC reported this earthquake of M 5.3 off the coast of Jalisco, Mexico may have been felt with intensity II-III in the area(s) of Mexico City, Mexico.
This is the strongest earthquake to hit within about 150 km of this epicenter since
an M 6.2 about 40 km southeast of this epicenter on February 22, 2015." (January 8-9, 2016)
This event occurred two days before the new moon of January 10 - similar to today's
event two days before the full moon. Both occurred within an hour of local solar noon, suggestive that
tidal stresses promoted the events (the event today occurred at 12:06 local time according to UNAM). Today's M 6.5-6.6 was preceded nine hours earlier
by an M 4.0 at the same epicenter as the large earthquake. Another promoter of
today's event may be landfall on the U.S. Gulf of Mexico coast of the first
major winter storm of the year. This storm is expected to track over the eastern
U.S. causing major disruption. The storm pushed North America to the north
off the Pacific subduction zone and reducing friction across large areas especially
in the area of western Mexico." (January 21, 2016)
This epicenter is near 103 degrees from the M 6.8 in Macquarie Island of April 29 as well as near this
nodal distance from recent strong earthquakes in New Britain and New Zealand,
and may have been promoted by energy from those sources.
Forecast 172252 had expected this event in the Jalisco, Mexico within about 50 km was likely
around May 13, 2025.
O: 13MAY2025 20:43:04 18.7N 107.2W ML=5.9 EMSC Jalisco, Mexico
P: 13MAY2025 172252 19.0N 107.0E 3.5-5.2 AAAAA Coast of Jalisco, Mexico
P: 17MAY2025 172252 18.0N 106.0E 3.5-5.4 BAAAA Coast of Jalisco, Mexico
BONIN ISLANDS, JAPAN
An M 5.5 followed the X1.2 flare by about an hour in the Bonin Islands, Japan. NEIC reported likely shaking up to III in the remote epicentral area.
The flare occurred while this epicenter was near local solar midnight and
probably affected it through SFE.
Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3220 1525 1538 1544 X1.2 (May 13, 2025) 5.8E-02
South of Sumatra M 3.6 15:44 UT
Southern Peru M 3.6 16:16 UT
Honshu M 4.0 16:44 UT
Bonin Is. M 5.5 16:52 UT
This is the largest earthquake reported in the Bonin Islands within about 200
km of today's epicenter since an M 6.6 on April 18, 2020.
At the time of that event this summary noted:
Today's M 5.5 in the Bonin Islands is the strongest within about 150 km of this
epicenter since an M 6.5 on April 27, 2024. At the time this summary noted:
"A strong M 6.6 earthquake shook the Bonin Islands of Japan today at a deep focus (490 km). It was reported felt in southern Honshu more than 1000 km from the epicenter with intensity II-III in Japan at Chiba, Kanagawa, Tokyo, and Saitama.
JMA reported it was felt in Tokyo and Ogasawara, Japan with intensity IV. No tsunami was expected or observed from this deep focus event. This is the strongest earthquake in the Bonin Islands since an M 7.8 on May 30, 2015
at a deep focus.
The occurrence of this strong earthquake today at 140 East longitude on the Pacific Rim is consistent
with promotion by tidal stresses associated with the full moon." (April 18, 2020)
A regional foreshock in the Bonin Islands of M 5.4 also occurred on April 24, 2024.
It was described in a previous issue of this summary as:
"A moderately strong earthquake of M 5.4 also occurred today in the Bonin Island
south of Honshu, Japan. It may have been lightly felt in the epicentral area.
The last event of M>=5.4 in the Bonin Islands within about 200 km of this
epicenter occurred as an M 5.9 on June 21, 2022. At the time this
summary noted:
"An earthquake of M 5.9 also occurred in the Bonin Islands of southern Japan today. It was not reported felt in this remote area.
This is the strongest earthquake within about 200 km of this epicenter since an M 7.4
on December 21, 2010 and aftershocks of M 6.2 and 6.4 on December 22, 2010.
More recent earthquakes in the area have occurred with M>=5.9 at deep focus
about 250 km to the west of today's event with M 6.0 on May 26, 2012; M 7.8 on May 30, 2015
and M 6.6 on May 18, 2020." (June 21, 2022, April 25, 2024, April 27, 2024))
This epicenter is located at 144 degrees (node 5) from the M 7.4 in the Drake Passage of May 2 and may have been promoted by energy from that source.
Earthquakes of M 4.0 also occurred at this distance from the Drake Passage today
in the areas of Taiwan.
Forecast 172001 had expected this event in the Bonin Islands, Japan within about 200 km was likely
around May 17, 2025.
O: 13MAY2025 16:52:35 27.3N 140.1E ML=5.5 EMSC Bonin Islands, Japan
P: 17MAY2025 172001 26.0N 143.0E 4.0-5.4 BBAAA Bonin Islands
NAPLES, ITALY
An earthquake of M 4.4 shook the region of Naples, Italy today causing concern
of a coming volcanic event among residents. NEIC reported maximum intensity IV in Campania at Naples with III in Casoria and II in Sorrento, Italy.
EMSC reported moderate shaking in the Naples, Italy area at Pozzuoli with slight damage, Quarto, Naples, Casoria, Aversa, San Giorgio a Cremano, Frattamaggiore, Afragola, Trecase, Minturno, Belvedere Marittimo.
This is the strongest earthquake in the area of central Italy within about 150 km of this epicenter since an M 4.7 on March 28, 2023.
An M 4.2 hit the Naples area on March 13, 2025. At the time this summary noted:
"NEIC reported an earthquake of M 4.2 in Naples, Italy was felt with intensity up to II-III in the area(s) of Naples, Italy with V in Pozzuoli, Campania; IV in Monte di Procida, Naples, Quarto, III in Bacoli, Orta di Atellaand San Giorgio a Cermano and in Penna Sant' Andrea Abruzzen, Italy.
EMSC reported this event at M 4.4 was felt strongly in Italy at Monte di Procida, Naples, Quarto, Afragola, Frattamaggiore, Pollena Trocchia, Pomigliano d'Arco, Acerra, Boscoreale, Nola.
This appears to be the strongest earthquake west of Naples in at least 40 years. The press
reported it was preceded by a loud earthquake noise. A lot of damage to facades
and ceilings was reported with the quake and in Bagnoli some people were trapped
in their houses. A ceiling collapse in Pozzuoli temporarily trapped a resident.
A series of aftershocks followed inflicting additional damage. An minor eruption of
Mount Vesuvius or Campi Flegrei is expected in the near future. The earthquake
occurred near local solar midnight and may have been promoted by strong
tidal stresses associated with the full moon and eclipse of March 14." (March 13, 2025)
Like earthquakes in Crete of M 6.1 and the Molucca Sea, this epicenter is located
at the third node (120 degrees) from the Drake Passage and may have been
promoted by energy from that source.
Forecast 172358 had expected this event in the Bonin Islands, Japan within about 100 km was likely
around May 15, 2025.
O: 13MAY2025 10:07:45 40.8N 14.1E ML=4.4 EMSC Italy
P: 15MAY2025 172358 41.0N 15.0E 3.0-5.4 AAAAA Italy
ICELAND
An M 4.6 north of Iceland today was reported by NEIC to have been felt with intensity
II in Husavik, Sandoy Faroe Islands.
Forecast 172413 had expected enhanced seismicity in this area was likely around May 13, 2025.
O: 13MAY2025 04:02:04 66.5N 17.4W ML=4.7 NEIC North of Iceland
P: 13MAY2025 172413 65.0N 17.0W 3.0-4.6 ABAAA Iceland area
The strongest earthquake felt in the U.S. or Canada today was an M 3.6 off the east coast of Hawaii. NEIC reported it was felt with intensity III in Kailua Kona and II in Hawaii at Kamuela, Mountain View, Pahoa, Pepeekeo.
This epicenter is located at 104 degrees from the M 7.4 of May 2 in the Drake Passage and may have been promoted by energy from that source.
Other earthquakes near this distance from the Drake Passage today included an M 2.3
in eastern Los Angeles, California. California may be vulnerable to a larger
quake at this time as it was directly at local solar midnight when a strong
M-class solar flare occurred near 08:00 UT on May 14.
Unusual earthquakes at nodal distances from the Drake Passage M 7.4 of May 2 also
occurred near the seventh node (52 degrees) in the East Pacific Rise (M 5.1); the fifth node (72 degrees) south of Australia (M 4.9) and Chiapas, Mexico (M 4.2),
NEIC reported an earthquake of M 2.5 in Oklahoma was felt with intensity up to II-III in the area(s) of Oklahoma at Dover.
NEIC reported an earthquake of M 2.6 in Northern California was felt with intensity up to II-III in the area(s) of Northern California in Hoopa.
NEIC reported an earthquake of M 3.0 in Olympic Peninsula, Washington was felt with intensity up to II-III in the area(s) of Olympic Peninsula, Washington at Kirkland, Seattle, Everett, Snohomish, Quilcene, Olympia, Aberdeen Westport, Longview, and Abbotsford, British Columbia.
NEIC reported an earthquake of M 2.5 in Oklahoma was felt with intensity up to II-III in the area(s) of Oklahoma at Dover.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3350 0305 0325 0335 M5.3 (May 14, 2025) 4.8E-02
Tonga M 6.4 04:15 UT
Sumatra M 4.8 03:16 UT
3390 0736 0745 0751 M1.2 (May 14, 2025) 8.5E-03
Los Angeles, California M 2.3 07:54 UT
New Guinea M 4.1 07:42 UT
3410 0804 0819 0831 X2.7 (May 14, 2025) 2.1E-02
South Island, New Zealand M 3.6 08:04 UT
Molucca Sea M 4.3 08:13 UT
Honshu M 4.2 08:45 UT
Cook Strait, N.Z. M 4.1 08:45 UT
Myanmar M 4.0 09:07 UT
3480 1759 1811 1818 M4.7 (May 14, 2025) 3.0E-02
Northern Peru M 5.2 20:13 UT
3200 1349 1357 1400 C3.7 (May 13, 2025) 1.4E-03
Central East Pacific M 5.1 14:32 UT
3220 1525 1538 1544 X1.2 (May 13, 2025) 5.8E-02
South of Sumatra M 3.6 15:44 UT
Southern Peru M 3.6 16:16 UT
Honshu M 4.0 16:44 UT
Bonin Is. M 5.5 16:52 UT
3270 2234 2241 2253 C2.3 (May 13, 2025) 2.0E-03
Dodecanese Is. M 6.0 22:51 UT
Kirkira Region, Greece M 4.1 22:54 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 15 unsettled May 14 quiet May 16. Solar M-flare chance: 15% X-class: 1% proton storm: 75%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 6 9 20:00 3 54 117
A major solar flare of X1.2 (SWPC #3220) occurred today about 15:30 UT. This is the strongest solar flare reported by SWPC since flare 5990 of X2.0 on February 23, 2025.
A solar flare of X1.1 occurred on March 28, 2025 and was associated with the M 7.7 in Myanmar of the same date.
Major solar flares can help promote strong earthquakes in the hours after the flare.
The X1.2 (3220) solar flare was followed by a second strong flare of M5.3 maximizing around 03:35 UT on May 14.
Longitudes at local solar noon when this flare was maximized are near 126 East longitude and include
the Banda Sea, Indonesia. SFE from this flare could trigger a strong earthquake in this area in the next day.
The M5.3 flare was accompanied by a strong M 6.4 at 04:15 UT in Tonga.
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 14 08 07 2025 -0.1 124.4 4.3 MOLUCCA SEA M35 SG64 T63 D122 MA59 Z59 NG85
05 14 07 54 2025 34.1 -117.3 2.3 GREATER LOS ANGELES AREA, CALI M115 SG127 T76 D99 MA115 Z107 NG57
05 14 07 42 2025 -0.2 134.6 4.1 NEAR N COAST OF PAPUA, INDONES M43 SG63 T54 D120 MA56 Z54 NG85
05 14 06 53 2025 36.0 -97.9 2.4 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 14 06 39 2025 36.0 -97.9 2.4 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 14 06 10 2025 36.0 -97.9 2.5 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 14 06 03 2025 36.0 -97.9 2.3 OKLAHOMA M120 SG137 T91 D95 MA127 Z120 NG56
05 14 05 50 2025 49.9 156.7 4.4 KURIL ISLANDS M54 SG114 T74 D152 MA103 Z97 NG36
05 14 05 20 2025 66.5 -17.7 4.6 ICELAND REGION M78 SG168 T131 D128 MA167 Z161 NG27
05 14 05 19 2025 15.0 -92.4 4.2 CHIAPAS, MEXICO M142 SG121 T87 D74 MA115 Z109 NG77
05 14 05 07 2025 18.6 -65.0 3.4 VIRGIN ISLANDS REGION M135 SG132 T113 D75 MA133 Z130 NG75
05 14 05 05 2025 16.8 -94.3 4.0 OAXACA, MEXICO M140 SG122 T86 D76 MA115 Z109 NG75
05 14 05 03 2025 -49.6 117.3 4.9 WESTERN INDIAN-ANTARCTIC RIDGE M73 SG17 T61 D73 MA23 Z30 NG135
05 14 04 15 2025 -18.6 -175.3 6.4 TONGA M95 SG56 T2 D83 MA42 Z33 NG105
05 14 04 15 2025 -18.6 -175.2 6.9 TONGA M95 SG56 T2 D83 MA42 Z33 NG105
05 14 04 13 2025 41.0 -123.7 2.6 NORTHERN CALIFORNIA M107 SG130 T76 D108 MA117 Z108 NG49
05 14 03 41 2025 38.8 -123.1 2.3 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 14 03 16 2025 -4.3 102.4 4.8 SOUTHERN SUMATRA, INDONESIA M26 SG63 T82 D118 MA65 Z68 NG90
05 14 02 48 2025 23.3 120.6 4.0 TAIWAN M22 SG87 T77 D145 MA82 Z81 NG62
05 14 02 08 2025 31.6 -104.0 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 14 01 16 2025 24.3 121.9 4.0 TAIWAN M24 SG88 T76 D146 MA83 Z81 NG61
05 14 00 24 2025 -56.7 -68.0 3.6 DRAKE PASSAGE M143 SG58 T81 D0 MA64 Z66 NG150
05 13 22 54 2025 39.7 20.0 4.1 KERKIRA REGION, GREECE M65 SG135 T157 D121 MA146 Z153 NG52
05 13 22 51 2025 35.4 26.9 6.2 CRETE, GREECE M60 SG129 T156 D121 MA139 Z146 NG56
05 13 22 51 2025 35.2 27.0 6.0 DODECANESE ISLANDS, GREECE M60 SG128 T156 D121 MA139 Z146 NG56
05 13 22 07 2025 -17.8 -178.6 4.4 FIJI REGION M92 SG55 T5 D85 MA41 Z33 NG104
05 13 20 43 2025 18.8 -107.3 5.9 OFF COAST OF JALISCO, MEXICO M133 SG118 T75 D82 MA109 Z102 NG73
05 13 19 10 2025 18.6 -106.2 3.6 OFF COAST OF JALISCO, MEXICO M134 SG119 T76 D81 MA109 Z102 NG73
05 13 18 20 2025 40.2 -110.1 3.1 UTAH M113 SG135 T84 D102 MA123 Z115 NG51
05 13 18 01 2025 19.4 -154.8 3.5 HAWAII REGION, HAWAII M99 SG98 T43 D104 MA84 Z76 NG69
05 13 17 46 2025 48.3 -122.7 2.1 STR. OF JUAN DE FUCA, WASHINGT M101 SG136 T82 D114 MA123 Z114 NG42
05 13 17 17 2025 19.2 -67.8 3.3 DOMINICAN REPUBLIC REGION M136 SG132 T111 D75 MA132 Z128 NG74
05 13 16 54 2025 -1.6 120.9 4.2 SULAWESI, INDONESIA M33 SG62 T66 D121 MA59 Z59 NG87
05 13 16 52 2025 27.3 140.1 5.7 BONIN ISLANDS, JAPAN REGION M40 SG90 T64 D144 MA82 Z78 NG58
05 13 16 52 2025 27.3 140.1 5.5 BONIN ISLANDS, JAPAN REGION M40 SG90 T64 D144 MA82 Z78 NG58
05 13 16 48 2025 6.9 92.3 4.1 NICOBAR ISLANDS, INDIA REGION M15 SG77 T95 D127 MA80 Z83 NG80
05 13 16 44 2025 38.4 142.2 4.0 NEAR EAST COAST OF HONSHU, M42 SG102 T71 D152 MA92 Z88 NG47
05 13 16 16 2025 -16.5 -74.1 3.6 NEAR COAST OF SOUTHERN PERU M169 SG96 T93 D40 MA98 Z96 NG109
05 13 14 32 2025 -13.4 -111.3 5.1 CENTRAL EAST PACIFIC RISE M152 SG88 T60 D54 MA81 Z75 NG104
05 13 12 55 2025 40.5 -124.4 2.0 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T76 D107 MA116 Z108 NG50
05 13 12 30 2025 5.8 125.9 4.5 MINDANAO, PHILIPPINES M33 SG69 T64 D127 MA64 Z63 NG80
05 13 12 12 2025 56.9 -154.8 3.8 KODIAK ISLAND REGION, ALASKA M81 SG131 T78 D132 MA118 Z109 NG31
05 13 11 15 2025 32.1 -101.9 2.3 WESTERN TEXAS M123 SG132 T86 D93 MA122 Z115 NG60
05 13 10 22 2025 40.8 14.1 3.5 SOUTHERN ITALY M69 SG139 T158 D119 MA150 Z158 NG51
05 13 10 07 2025 40.8 14.1 4.4 SOUTHERN ITALY M69 SG139 T158 D119 MA150 Z158 NG51
05 13 09 18 2025 47.5 -123.4 2.8 OLYMPIC PENINSULA, WASHINGTON M102 SG135 T81 D113 MA122 Z113 NG43
05 13 07 39 2025 33.0 -117.7 2.1 GULF OF SANTA CATALINA, CALIF. M116 SG126 T75 D98 MA114 Z106 NG58
05 13 07 10 2025 -14.5 -72.2 4.0 CENTRAL PERU M166 SG99 T95 D42 MA100 Z99 NG108
May 13, 2025
Notable Earthquakes
It was a relatively quiet day in global seismicity with no quakes of M>5.3.
An unusual earthquake of M 5.0-5.1 in southern Argentina today was followed by a series of moderate aftershocks.
An unusually large earthquake of M 3.4 was recorded in Illinois today. This is the strongest event in this region since June 17, 2021 and September 18, 2017 - both of M 3.8.
An unusual M 4.7 occurred north of Iceland today. It is not associated with current volcanic activity in the area.
The full moon arrived on May 12, 2025 at 16:56 UT. Longitudes which are sub-solar (local solar noon) are near 75 West while those at local solar midnight are near 105 East longitude. In the west these include areas of Central America and the Caribbean and the west coast of South America while in the east these areas include western Indonesia, southeast and central Asia. These areas are most likely to see tidal triggering with this full moon.
SOUTHERN ARGENTINA
An earthquake of M 5.0 occurred in extreme southern Argentina today. It was reported by NEIC to have been felt with intensity up to V in the epicentral area and IV in El Calafe, Santa Cruz, Argentina.
This is the strongest earthquake within about 300 km of this epicenter since an
M 5.4 on October 13, 2021 and an M 5.1 on October 30, 2004. At the time of the
event on October 13, 2021, the largest in the area in the past 30 years, this summary noted:
"The most unusual earthquake of the day was an M 5.4 in southern
Argentina and Chile in Santa Cruz, Argentina. GUC reported this earthquake was felt with intensity IV in Magallanes and Antartica, Chilena at Torres del Paine and III in Natales, Chile.
NEIC reported this earthquake of M 5.4 in the southern Argentina-Chile border was felt with intensity II-III in the area(s) of the southern Argentina-Chile border at Rio Gallegos, Santa Cruz, Argentina.
This is the largest earthquake within about 300 km of this epicenter since
an M 5.4-5.5 on July 30, 1992 near this same epicenter. That was the only
earthquake of M>=5.4 in this area located in the past 30 years." (October 13, 2021)
Today's epicenter is near the Drake Passage M 7.4 of May 2 (57S 67W) and was probably
triggered by stress redistribution from that event.
Forecast 172434 had expected today's event within about 100 km was likely
around May 13.
O: 13MAY2025 00:48:00 51.4S 71.9W ML=5.0 NEIC Southern Argentina
P: 13MAY2025 172434 52.0S 71.0W 4.0-5.6 ABAAA Argentina
ILLINOIS
An earthquake of M 3.3-3.4 was felt in eastern Illinois today. NEIC reported it with intensity III in Illinois in Urbana, Homer, Charleston and II in Crest Hill, Milford, Champaign and Ashmore. It may have been felt as far as Chicago, Peoria and in Louisville, Kentucky.
It occurred near local solar midnight and may have been promoted by tidal stresses
associated with the full moon about 12 hours earlier on May 12 (see above).
This is the strongest earthquake recorded in Illinois within about 150 km of this epicenter
since an M 3.8 four years ago on June 17, 2021 and prior to that an M 3.8
on September 19, 2017. The last moderate earthquake in the area was an M 5.4 on April 18, 2008.
At the time of the June, 2021 event this summary noted:
"A light to moderate earthquake of M 3.8 in the region of Indiana today continued the enhanced seismicity in the central and eastern U.S. observed over the past three days. Today's event was reported by NEIC with maximum intensity VI in Indiana at Hillsdale; V in Kingman; IV in Dana, Marshall, Rockville, Montezuma and III in Bloomingdale, Cayuga, and in Illinois at Rosedale and Clinton among others. It was reported lighly felt as far as Texas, Massachusetts, Florida, Maine, North Dakota, Minnesota, Ontario Canada along with most of the remaining states and provinces of eastern U.S. and Canada.
The total eclipse of the sun of June 10, 2021 was visible in most of the region where today's event was felt and may have been a promoter of this seismicity as reported in earlier issues of this summary:
"The new moon arrives on June 10 at 10:53 UT. Longitudes which are at local solar midnight at this hour include those near 160 West while those at local solar noon are near 20 East longitude. These include areas from the northern Kermadec/Tonga/Samoa arc, Hawaii and Alaska and the Aleutians in the west and Central Europe and Africa in the east. These areas are most likely to see tidal enhancement of seismicity with this new moon. Other areas could also see an increase in seismicity especially near local solar noon and midnight with a moderately strong to major quake possible in the next week. This is an annular solar eclipse. The maximum will be at 80N 66W and will be visible in northern and central Alaska and central and northern Canada. It will end north of Kamchatka, Russia and could trigger a large earthquake or volcanism in that area. In the U.S. it will be partially visible in Central Alaska, North and South Dakota through much of the eastern and northern U.S., Greenland and Canada beginning in the region of the Virgin Islands and Puerto Rico. A strong to major earthquake is likely within several days of this eclipse, most likely in eastern Asia or the Caribbean." (June 8-10, 2021)
Today's event in Indiana is the strongest within about 150 km of this epicenter
since an M 3.8 on December 30, 2010 and an M 3.8 on September 12, 2004. The only event
in this region of larger magnitude occurred about 200 km northwest of today's
epicenter on June 28, 2004. The day before this earthquake occurred this summary noted
in this regard:
"Unusual earthquakes in the interior of the
U.S. or Canada often precede strong earthquakes elsewhere along the western
edge of North America. We have emphasized this in the past and it is always a
possibility that a strong earthquake is possible when a moderate intraplate
earthquake occurs. In the past several days we have been discussing the unusual activity
in the region of the northwest U.S. and southwest Candada. This is probably
the most likely region for such an event should it occur at this time." (June 27, 2004)
"The earthquake of Mb 4.1 (Mblg 4.5) that occurred in northern Illinois this
morning several hours before the Alaska earthquake was felt lightly with
light damage from falling objects and cracked plaster. This event was
the strongest in the Chicago area since a moderate event which occurred
nearly 70 years ago on Nov. 12, 1934." (June 29, 2004, June 17, 2021)
Forecasts 172037, 172318 had expected a light to moderate quake in this area
of Illinois around May 9-15.
O: 13MAY2025 04:43:49 39.4N 88.3W ML=3.4 EMSC Illinois
P: 09MAY2025 172037 38.0N 89.0W 2.0-4.1 BBAAA New Madrid Area
P: 15MAY2025 172318 38.0N 90.0W 2.0-4.1 BBAAA New Madrid Area
P: 13MAY2025 172318 39.0N 88.0W 2.0-4.1 AAAAA New Madrid Area
ICELAND
An M 4.7 north of Iceland today was reported by NEIC to have been felt with intensity
II in Husavik, Sandoy Faroe Islands.
Forecast 172413 had expected enhanced seismicity in this area was likely around May 13, 2025.
O: 13MAY2025 04:02:04 66.5N 17.4W ML=4.7 NEIC North of Iceland
P: 13MAY2025 172413 65.0N 17.0W 3.0-4.6 ABAAA Iceland area
The strongest earthquake in the world today was an M 5.3 in Hokkaido, Japan. NEIC reported it was felt with intensity II in Miyako, Iwate, Japan.
NEIC reported an earthquake of M 4.9 in Dodecanese Islands was felt with intensity up to II-III in the area(s) of Dodecanese Islands with IV in Kiklades, Greece at Thira and Emborion; III in Bursa, Turkdy and II in Kiklades, Greece at Apollonia, Mesaria, Naxos and Paros.
NEIC reported earthquakes of M 4.0 and M 4.1 in Valparaiso, Chile were felt with intensity up to II-III in the area(s) of Valparaiso, and Santiago, Chile.
NEIC reported an earthquake of M 3.3 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska in Anchorage.
NEIC reported an earthquake of M 2.7 in Northern California was felt with intensity up to II-III in the area(s) of Northern California in Middletown.
NEIC reported an earthquake of M 5.0 in Southern Peru was felt with intensity up to II-III in the area(s) of Southern Peru with III in Iquique, Tarapaca, Chile.
EMSC reported light shaking in Chile at Arica, Iquique and Alto Hospicio.
NEIC reported an earthquake of M 4.5 in Guatemala was felt with intensity up to II-III in the area(s) of Guatemala at Antigua Guatemala, Sacatepequez.
NEIC reported an earthquake of M 3.1 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska with III in Anchorage and Fort Richardson.
NEIC reported earthquake of M 4.3 and M 4.4 in Turkey were felt with intensity up to II-III in the area(s) of with IV in Amasya.
EMSC reported moderate shaking in Turkey at Haciyahya,Sofular, Mezifon, Copiu, Gulabibey, Mimarsinan, Akbilek, Cumhuriyet, Yenimahalle, Korfez, Mimarsinan, Kilicdede, Asaginohutlu, Haci Bayram.
EMSC reported an earthquake of M 4.1 in Kamchatka was felt with intensity up to IV in the area(s) of Vilyuchinsk, Russia.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2870 0041 0049 0054 C1.6 (May 12, 2025) 1.2E-03
Gulf of California M 4.0 00:50 UT
Venezuela M 5.0 00:42 UT
Tonga M 4.6 00:40 UT
2900 0541 0548 0552 C1.6 (May 12, 2025) 9.6E-04
2910 0558 0602 0606 C2.0 (May 12, 2025) 9.0E-04
South Georgia Is. M 4.9 06:20 UT
2940 1152 1159 1202 C1.0 (May 12, 2025) 6.3E-04
2950 1249 1308 1339 C2.7 (May 12, 2025) 5.3E-04
2960 1452 1502 1504 C2.7 (May 12, 2025) 1.2E-03
Hokkaido M 5.3 14:54 UT
Tarapaca M 5.0 14:57 UT
Oaxaca M 4.0 15:04 UT
2990 1654 1701 1706 C1.2 (May 12, 2025) 7.5E-04
Molucca Sea M 5.1 17:01 UT
3000 1714 1723 1727 C1.0 (May 12, 2025) 8.1E-04
Kamchatka M 4.5 17:17 UT
Valparaiso M 3.1 17:33 UT
3030 1939 1948 1954 C1.2 (May 12, 2025) 9.5E-04
Taiwan M 4.0 19:38 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 13 and 15 unsettled May 14. Solar M-flare chance: 15% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 6 10 7 15:00 4 64 116
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 13 07 10 2025 -14.4 -72.2 4.0 CENTRAL PERU M166 SG99 T95 D42 MA100 Z99 NG107
05 13 06 41 2025 22.1 96.3 3.9 MYANMAR M0 SG90 T97 D143 MA91 Z93 NG64
05 13 06 13 2025 37.2 -117.1 2.6 NEVADA M113 SG130 T78 D102 MA118 Z109 NG54
05 13 05 41 2025 0.7 121.6 4.4 MINAHASA, SULAWESI, INDONESIA M32 SG65 T66 D123 MA61 Z61 NG85
05 13 05 36 2025 22.0 101.6 3.6 CHINA-LAOS BORDER REGION M5 SG89 T92 D144 MA88 Z89 NG64
05 13 04 54 2025 15.0 -94.0 4.0 OFFSHORE CHIAPAS, MEXICO M141 SG120 T85 D74 MA114 Z108 NG77
05 13 04 43 2025 39.4 -88.3 3.4 ILLINOIS M118 SG144 T99 D97 MA135 Z128 NG53
05 13 04 13 2025 -19.5 -176.4 4.5 FIJI REGION M95 SG54 T2 D83 MA40 Z32 NG106
05 13 04 09 2025 66.5 -17.7 3.6 ICELAND REGION M78 SG168 T131 D128 MA167 Z161 NG27
05 13 04 02 2025 66.5 -17.6 4.7 ICELAND REGION M78 SG168 T131 D128 MA167 Z161 NG27
05 13 03 55 2025 37.9 -122.2 2.3 SAN FRANCISCO BAY AREA, CALIF. M110 SG128 T75 D104 MA115 Z107 NG53
05 13 03 42 2025 -56.8 -68.7 3.3 DRAKE PASSAGE M143 SG58 T81 D0 MA63 Z66 NG150
05 13 03 27 2025 22.4 -99.4 3.9 SAN LUIS POTOSI, MEXICO M133 SG125 T84 D83 MA116 Z109 NG70
05 13 02 45 2025 22.2 -99.1 3.8 SAN LUIS POTOSI, MEXICO M133 SG125 T84 D82 MA116 Z110 NG70
05 13 02 19 2025 -51.4 -72.1 3.9 SANTA CRUZ, ARGENTINA M149 SG63 T81 D5 MA67 Z69 NG144
05 13 01 38 2025 36.3 -120.9 2.6 CENTRAL CALIFORNIA M112 SG127 T75 D102 MA115 Z106 NG54
05 13 01 37 2025 37.1 140.5 4.8 EASTERN HONSHU, JAPAN M41 SG100 T71 D152 MA91 Z87 NG48
05 13 01 30 2025 51.8 -175.0 4.2 ANDREANOF ISLANDS, ALEUTIAN IS M72 SG121 T71 D138 MA108 Z101 NG35
05 13 00 48 2025 -51.4 -72.0 5.1 SANTA CRUZ, ARGENTINA M149 SG63 T81 D5 MA67 Z69 NG144
05 13 00 02 2025 -9.6 107.1 4.0 SOUTH OF JAVA, INDONESIA M33 SG57 T76 D113 MA58 Z61 NG95
05 13 00 01 2025 30.9 99.0 4.3 EASTERN XIZANG M9 SG98 T97 D152 MA97 Z98 NG56
05 12 23 52 2025 56.9 -154.9 3.6 KODIAK ISLAND REGION, ALASKA M81 SG131 T78 D132 MA118 Z109 NG31
05 12 23 30 2025 36.6 25.7 4.9 DODECANESE ISLANDS, GREECE M61 SG130 T156 D121 MA141 Z148 NG55
05 12 23 20 2025 38.2 -117.9 2.2 NEVADA M112 SG130 T78 D103 MA118 Z109 NG53
05 12 23 17 2025 31.7 -104.4 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 12 23 12 2025 -6.1 151.7 4.9 NEW BRITAIN REGION, P.N.G. M61 SG58 T36 D109 MA48 Z43 NG91
05 12 23 08 2025 -32.6 -71.1 4.0 VALPARAISO, CHILE M164 SG81 T89 D24 MA84 Z85 NG126
05 12 22 15 2025 18.2 -67.3 3.3 MONA PASSAGE, PUERTO RICO M136 SG131 T111 D74 MA131 Z128 NG75
05 12 22 02 2025 57.0 -154.7 3.3 KODIAK ISLAND REGION, ALASKA M81 SG131 T78 D132 MA118 Z110 NG31
05 12 21 33 2025 42.6 142.0 4.5 HOKKAIDO, JAPAN REGION M43 SG106 T74 D156 MA97 Z92 NG43
05 12 21 30 2025 -24.0 -67.0 4.4 SALTA, ARGENTINA M164 SG90 T96 D32 MA94 Z94 NG117
05 12 20 58 2025 33.3 -116.4 2.2 SOUTHERN CALIFORNIA M116 SG127 T76 D98 MA115 Z107 NG58
05 12 20 10 2025 30.6 -117.1 3.6 OFFSHORE BAJA CALIFORNIA, MEXI M118 SG124 T74 D96 MA113 Z104 NG60
05 12 19 37 2025 23.0 121.4 4.0 TAIWAN REGION M23 SG87 T76 D145 MA82 Z80 NG63
05 12 18 32 2025 19.1 -66.1 3.3 PUERTO RICO REGION M135 SG133 T112 D75 MA132 Z129 NG74
05 12 18 16 2025 32.0 -102.2 2.0 WESTERN TEXAS M123 SG132 T86 D93 MA122 Z114 NG60
05 12 17 35 2025 61.0 -147.5 3.3 SOUTHERN ALASKA M82 SG137 T83 D132 MA123 Z115 NG28
05 12 17 33 2025 -33.7 -72.2 4.1 OFFSHORE VALPARAISO, CHILE M164 SG80 T88 D23 MA83 Z83 NG127
05 12 17 17 2025 53.1 159.3 4.5 NEAR EAST COAST OF KAMCHATKA M56 SG118 T76 D152 MA106 Z101 NG33
05 12 17 01 2025 2.1 126.7 5.1 MOLUCCA SEA M35 SG66 T62 D124 MA60 Z60 NG83
05 12 16 23 2025 -7.4 128.9 4.1 KEPULAUAN BARAT DAYA, INDONESI M43 SG56 T56 D114 MA51 Z50 NG93
05 12 16 01 2025 65.0 -134.1 2.9 NORTHERN YUKON TERRITORY, CANA M85 SG144 T90 D131 MA130 Z122 NG25
05 12 15 40 2025 -2.3 100.8 4.3 KEP. MENTAWAI REGION, INDONESI M24 SG66 T84 D120 MA67 Z71 NG88
05 12 15 14 2025 38.8 -122.7 2.7 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 12 15 04 2025 15.9 -96.3 4.0 OAXACA, MEXICO M140 SG120 T84 D76 MA113 Z107 NG76
05 12 14 59 2025 -57.3 -67.5 3.6 DRAKE PASSAGE M142 SG57 T81 D0 MA63 Z66 NG150
05 12 14 57 2025 -18.3 -69.3 5.0 TARAPACA, CHILE M165 SG95 T96 D38 MA98 Z97 NG111
05 12 14 54 2025 41.6 142.1 5.3 HOKKAIDO, JAPAN REGION M43 SG105 T73 D155 MA96 Z91 NG44
05 12 14 34 2025 -24.9 -176.5 4.7 SOUTH OF FIJI ISLANDS M96 SG49 T5 D78 MA36 Z27 NG111
05 12 14 34 2025 13.8 -90.9 4.5 OFFSHORE GUATEMALA M143 SG120 T88 D72 MA115 Z109 NG79
05 12 13 43 2025 36.3 -89.5 2.4 TENNESSEE M121 SG141 T97 D94 MA132 Z125 NG56
05 12 12 06 2025 36.9 -117.8 1.9 CENTRAL CALIFORNIA M113 SG129 T77 D102 MA117 Z108 NG54
05 12 11 53 2025 32.1 -102.1 2.0 WESTERN TEXAS M123 SG132 T86 D93 MA122 Z114 NG60
05 12 11 51 2025 34.0 -116.0 2.3 SOUTHERN CALIFORNIA M116 SG128 T77 D99 MA116 Z107 NG57
05 12 11 14 2025 32.1 -102.2 2.1 WESTERN TEXAS M123 SG132 T86 D93 MA122 Z114 NG60
05 12 10 26 2025 33.5 -116.4 2.3 SOUTHERN CALIFORNIA M116 SG127 T76 D98 MA115 Z107 NG57
05 12 10 16 2025 25.2 -99.7 3.7 NUEVO LEON, MEXICO M130 SG127 T85 D85 MA118 Z111 NG67
05 12 09 28 2025 61.5 -149.4 3.1 SOUTHERN ALASKA M81 SG137 T83 D133 MA123 Z115 NG27
05 12 09 26 2025 40.8 35.2 4.4 CENTRAL TURKEY M54 SG129 T147 D129 MA138 Z143 NG50
05 12 09 26 2025 19.4 -66.3 3.2 PUERTO RICO REGION M135 SG133 T112 D75 MA133 Z129 NG74
05 12 09 23 2025 40.8 35.2 4.3 CENTRAL TURKEY M54 SG129 T147 D129 MA138 Z143 NG50
05 12 09 21 2025 25.2 -99.7 3.5 NUEVO LEON, MEXICO M130 SG127 T85 D85 MA118 Z111 NG67
05 12 09 15 2025 -21.5 -69.2 4.1 ANTOFAGASTA, CHILE M166 SG92 T95 D35 MA95 Z95 NG115
05 12 08 29 2025 19.1 -67.9 3.6 DOMINICAN REPUBLIC REGION M136 SG132 T110 D75 MA132 Z128 NG74
05 12 08 09 2025 36.6 -89.6 2.1 SOUTHEASTERN MISSOURI M121 SG141 T97 D94 MA133 Z125 NG56
05 12 08 03 2025 3.7 96.8 3.8 NORTHERN SUMATRA, INDONESIA M18 SG73 T90 D125 MA75 Z78 NG83
05 12 07 56 2025 29.1 66.6 4.6 PAKISTAN M27 SG106 T124 D137 MA112 Z116 NG59
05 12 07 53 2025 35.9 -92.9 2.2 ARKANSAS M121 SG139 T94 D94 MA130 Z123 NG57
05 12 07 42 2025 37.2 -118.3 2.7 CENTRAL CALIFORNIA M112 SG129 T77 D102 MA117 Z108 NG54
05 12 07 35 2025 12.9 -91.1 4.1 OFF THE COAST OF GUATEMALA M144 SG119 T87 D72 MA114 Z108 NG79
05 12 07 12 2025 19.3 -64.9 3.4 VIRGIN ISLANDS REGION M134 SG133 T113 D75 MA133 Z130 NG74
05 12 07 07 2025 17.9 -66.8 3.1 PUERTO RICO REGION M136 SG131 T111 D74 MA131 Z128 NG76
May 12, 2025
Notable earthquakes:
An earthquake of M 5.6 hit Xizang, China (Tibet) today. Damage was expected in the epicentral area.
This earthquake location was consistent with tidal triggering with today's full moon. (See below for forecast)
An earthquake of M 5.9 also occurred today in the region of Vanuatu. It was felt in the Port-Vila and Epule.
An earthquake of M 5.8 hit the region of northern Sumatra today. This is consistent with tidal triggering with the full moon of May 12, 2025 as previously noted in this summary:
This event is antipodal to the series of quakes in Ecuador yesterday (see previous issue of this summary for details).
The full moon of May 12 may bring the current lull in global seismicity to a halt. Expected enhanced seismicity is expected as:
The full moon will arrive on May 12, 2025 at 16:56 UT. Longitudes which are sub-solar (local solar noon) are near 75 West while those at local solar midnight are near 105 East longitude. In the west these include areas of Central America and the Caribbean and the west coast of South America while in the east these areas include western Indonesia, southeast and central Asia. These areas are most likely to see tidal triggering with this full moon.
Tropical Cyclone 32P could enhance seismicity in New Guinea and at the antipode in the Central mid-Atlantic Ridge.
XIZANG (TIBET), CHINA
An earthquake M 5.6-5.7 occurred in Xizang, China today. NEIC reported it was probably felt with intensity up to VIII in the epicentral
area with III in Nepal at Khadbari, Sankhuwasabha and II in Bhimeshwar and II in Shiliguri, Bangla, India.
This is the strongest earthquake within about 200 km of this epicenter in Xizang
since an M 7.1 about 200 km to the west of this epicenter on January 7, 2025 and
the strongest within about 150 km since an M 5.9 on August 25, 1998.
At the time of the January 8, 2025 event this summary noted:
"A major earthquake of M 7.0 occurred in Nepal and Xizang, China (Tibet) today. It was felt widely from Xizang, China to Nepal to India. NEIC reported maximum intensity VI in Bangla and Bihar, India at Islampur and Munger and V at Baharampur, Kalimpong, Dinapur, Koilwar, Motihari, Raxaul, Samastipur, in Nepal with intensity V in Bhimeshwar, Mechinagar, Banepa, Butwal; with IV in Bangladesh at Sherpur, Nawabganj, Narayanganj, Rangpur, Rajshahi; in Bhutan at Phuentsholing, among others.
EMSC reported strong shaking in Nepal at Kathmandu, Malangwa, and in India at Majorganj, Jaygaon, Nyoti Nagar, Bairatisal, West Ashrampara, Arbinda Pally, Jalpaiguri, Paljor Stadium area, Namchi, Sikkim, India, Darjeeling, Kalimpong, Siliguri, among others.
Initial reports indicate that more than 95 people were killed in the earthquake with at least 130 injured. AP reported major damage of the Tibetan holy city of Shigatse.
At least 1000 homes were damaged. The epicenter is about 75 km from Mount Everest,
the tallest mountain in the world. Operations at that location have ceased for the
immediate threats of aftershocks or landslides related to today's event. Minor damage was initially reported confined to areas of southern Xizang, China and Nepal.
Videos on the internet show some damage in these areas. The mainshock was followed by a series of moderate aftershocks which NEIC reported
were felt with moderate to strong intensity (V) in Kathmandu, Nepal.
A light M 3.9 foreshock hit this area of Nepal on January 3, 2025 and was noted in this summary at the time as:
"EMSC reported an earthquake of M 3.9 in Nepal was felt with intensity up to IV in the area(s) of Nepal at Kathmandu." (January 3, 2025)
These epicenters are at the fourth node (90 degrees) from the M 7.4 in Vanuatu of December 17, 2024
and were in an area where enhanced seismicity after that quake was expected
in this summary on December 17 as:
...
The last earthquake of M>=6.5 within about 300 km of today's epicenter occurred
as an M 7.3 on May 12, 2015 - a regional aftershock of an M 7.8 of April 25, 2015.
At the time this summary noted:
"The strong earthquake of M 7.2 in Nepal was widely felt in the region. This
report noted in the previous issue in regard to the possibility of a strong
aftershock in Nepal at this time:
"The great earthquake in Nepal of April 25 occurred half a lunar month ago.
In many areas tidal forces are maximized at 14-15 day intervals and can
help trigger large aftershocks at that time. A strong aftershock in Nepal
is overdue after a series of quiet days in that region. There were some
moderate events in the area today leading to speculation that a larger earthquake
may be imminent. The death toll from the mainshock is over 8000 now and
many buildings are damaged and could collapse in a major aftershock.
As the migration of major earthquakes at the fifth node from Nepal (72 degrees)
in the New Britain area has been moving to the east as noted in previous issues of this report,
a strong aftershock in Nepal would also likely be 100-200 km east of the
April 25 mainshock." (April 11-12, 2015)
The earthquake in Nepal of M 7.2 brought fresh death and destruction to that
country. Initial deaths are listed at 65 in Nepal and 17 more in India with the latest event and more than
8000 from the mainshock. In addition more than 2000 more were injured in
today's aftershock and scores of buildings collapsed after being weakened
in the mainshock. Most of the casualties were listed in Dolakha district north of
Kathmandu. The quake was centered near Mt. Everest and was followed by at
least 17 moderate aftershocks including an M 6.2. Landslides caused additional
destruction. At least one aid helicopter was missing and presumed down. Flights
to Kathmandu were diverted for most of the day. Schools remained closed probably
for another two weeks. The quake was felt throughout Nepal, in Pakistan, Bihar,
northern India and China where at least one person was killed in Tibel.
The quake occurred shortly after local solar noon and was probably promoted
by tidal stresses as was the mainshock two weeks ago (occurred minutes before
local solar noon). Today's aftershock is about 150 km to the east of the
mainshock of April 25 and affected a slightly different population." (May 12, 2015)
The last earthquake to hit within about 150 km of today's epicenter with M>=6.5
occurred as an M 6.9 on September 18, 2011." (January 7, 2025)
This earthquake in Xizang occurred near local solar midnight and may have been
promoted by tidal and/or geomagnetic effects associated with solar flares and
the full moon of May 12.
Today's event in Xizang, China today of M 5.6-5.7 was at 147 degrees (node 5) from the Drake Passage
event of May 2, 2025 and may have been promoted by energy from that source.
Earthquakes of M 4.9 in Taiwan and an M 5.3 in northeastern Russia today were at this same distance from the Drake Passage.
This epicenter is also at 102-103 degrees from the M 6.8 in New Zealand of March 25 and
the M 6.8 in the Macquarie Islands of April 29, and may have been promoted by energy from these sources as well.
Forecast 172079 had expected this activity in Xizang was likely in early May, 2025.
O: 11MAY2025 21:11:23 29.0N 87.6E ML=5.6 EMSC Western Xizang
O: 11MAY2025 21:11:23 29.0N 87.5E ML=5.7 NDI Western Xizang
P: 02MAY2025 172079 31.0N 88.0E 3.8-5.3 CBAAA Xizang
VANUATU
A strong M 5.9-6.3 earthquake occurred today in southern Vanuatu. NEIC reported it was felt with intensity up to VI in Vanuatu with moderate intensity V reported in Vanuatu at Vile Shefa; IV inLuganville, Sanma and II in New Caledonia at Noumea and Welles.
An aftershock of M 4.7 was also felt with intensity II in Vila Shefa.
The last earthquake of M>=5.9 in Vanuatu within about 200 km of today's epicenter
was an M 5.9 on February 10, 2025 - an aftershock of the M 7.3 in Vanuatu
on December 17, 2024. At the time this summary noted:
"An M 7.3-7.4 earthquake hit the area of southern Vanuatu today. NEIC reported extensive damage and intensity up to IX at Isangel, Tafea and VIII in Vila Shefa, Vanuatu. Lesser intensities of IV were felt in New Caledonia at Bouloupari and II in Dumbea, Noumea and Paita.
The earthquake damaged buildings and cars and killed at least one person in the capital of Vanuatu - Port Vila. Some
people were trapped in collapsed building, some of which fell on vehicles and
sidewalks filled with Christmas vendors. A number were injured and roads leading to the port and
shipping terminal were closed due to landslides. Video and pictures on
the web showed considerately damage to U.S., French, New Zealand and British embassies.
most of which were closed after the quake. Communications was out throughout
most of Vanuatu and casualties are expected to rise. An M 5.5 aftershock followed. EMSC reported the M 7.4 was felt with
intensity III in Noumea, and Tadine New Caledonia south of Vanuatu. A tsunami was considered likely
with this event but a warning was dropped several hours later when only small
tsunami waves were observed. This earthquake is located near
the fourth node (90 degrees) from the M 7.0 off Northern California of
December 5 and may have been promoted by far-field effects from that source. Other
unusual earthquakes in the past several days at the fourth node from the M 7.0
in Northern California have occurred as an M 6.4 in Maule, Chile and an M 4.9-5.0
yesterday in northern Algeria. An unusual M 5.2 also occurred near the fourth
node from California today in the Central Mid-Atlantic Ridge. This summary had expected enhanced seismicity
near 90 degrees after the California quake was likely among others at:
"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:
...
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" (December 5, 2024)
It also occurred near local solar noon and may have been promoted by tidal
stresses with the full moon of December 15, 2024.
...
Today's event of M 7.4 is the strongest within about 400 km in Vanuatu since
an M 7.5 on November 26, 1999 and an M 7.4 on October 11, 1992 - an event
that followed several months after an M 7.1 off northern California of April 25, 1992." (December 17, 2024)
This earthquake in Vanuatu occurred near local solar midnight and may have been
promoted by tidal and/or geomagnetic effects associated with solar flares and
the full moon of May 12. The expected tidal effects of the full moon were
previously identified in this summary as:
"The full moon will arrive on May 12, 2025 at 16:56 UT. Longitudes which are sub-solar (local solar noon) are near 75 West while those at local solar midnight are near 105 East longitude. In the west these include areas of Central America and the Caribbean and the west coast of South America while in the east these areas include western Indonesia, southeast and central Asia. These areas are most likely to see tidal triggering with this full moon." (May 9-11, 2025)
The M 5.9-6.3 in Vanuatu today was located at the fourth node (90 degrees) from the Drake Passage M 7.4 of
May 2 and from the M 7.1 in Xizang of January 7, 2025 and may have been promoted
by energy from those sources. Other earthquakes at the fourth node from the
Drake Passage today occurred in Texas, the Gulf of California, and New South Wales,
Australia.
This earthquake in Vanuatu ccurred at the end of solar flare 2700 (C2.6)
and may have been promoted by SFE from that flare. Data from SWPC for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2700 1125 1130 1135 C2.6 (May 11, 2025) 1.6E-03
Vanuatu M 5.9 11:22 UT
Primor'ye Russia M 4.6 11:39 UT
Forecast 171886 had expected this activity in Vanuatu was likely around May 5.
O: 11MAY2025 11:22:22 17.7S 168.3E ML=5.9 EMSC Vanuatu
O: 11MAY2025 11:22:22 17.7S 168.3E ML=6.3 GEONET Vanuatu
P: 05MAY2025 171886 17.0S 168.0E 4.0-5.6 BCCAA Vanuatu Islands
NORTHERN SUMATRA
An M 5.8-6.0 earthquake struck the region of northern Sumatra today. NEIC reported
it was felt with intensity VII in Aceh, Indonesia at Lhokseumawe and Meulaboh with III in Medan, Sumatra and in Thailand and Malaysia.
EMSC reported moderate shaking at Namo Rambe, Medan Labuhan, and in Tailand at Ko Sarai, in Malaysia at Balik Pulau, Kampung Sungai Dua Bukit, Pulau Jerejak, Mukim, Air Hitam, Georgetown, Air Hitam, Sitiawan, Perak Sitiawan, Kampung Bagan Serai and in Thailand at Rawai, Chalong, TTDI Jaya, Petaling, and as far as Kuala Lumpur.
Today's event in Sumatra occurred near local solar noon and may have been
promoted by geomagnetic and/or tidal stresses associated with solar flares
and the full moon of May 12.
This earthquake in Sumatra follows a strong sequence yesterday at the antipode
on the Peru-Ecuador border. At the time this summary noted it as:
"The antipode of today's activity in Ecuador is in Sumatra near 4N 99E. Moderate
enhancement of seismicity could occur near this epicenter Sumatra in the next several days.
Following the great M 9.0 earthquake of December 26, 2004, this relationship
between Sumatra and Ecuador earthquakes was emphasized in this summary twenty
years ago in May, 2005 as:
"An earthquake measuring M 6.1 occurred today in the region near the Peru-Ecuador
border. It was followed later in the day by a strong earthquake in the Sumatra/
Nicobar Islands with M 5.5-6.5. Data on the NEIC website indicated that the Ecuador
quake was reported felt with maximum intensity IV about 150 km from the epicenter in the city of Guayaquil,
Ecuador. It was also reported felt more than 400 km to the north in Quito,
Ecuador. There were no immediate reports of damage or injuries. In neighboring Colombia,
officials have raised the volcanic alert on Galeras Volcano to level two meaning
an eruption could occur within days or weeks at that Volcano.
The earthquake epicenter is within about 200 km of the exact antipode of
the M 6.7-6.9 event in the Sibolga, Sumatra area of Indonesia which
occurred two days ago on May 19. This was one of only three aftershocks of
the M 9.3 quake in the region which have had magnitudes of M>=6.9 (EMSC data).
When that event occurred we noted the relation to the Peru-Ecuador-Colombia
seismicity when we stated in this summary: "A series of events in the antipodal
region of Peru, Ecuador and Colombia also occurred over the past day.
The most interesting of these in terms of possible triggering occurred
within about 200 km of the exact antipode of today's Nias event of M 6.9
about 30 minutes prior to the Nias event with M 4.5." (geoForecaster Inc.
May 19, 2005). We have discussed this antipodal relationship in several previous
summaries during the past five months." (May 22, 2005)
A moderate M 3.9 occurred near the antipode of Ecuador today in northern Sumatra and may be
a foreshock to a coming regional event. Parameters for this event follow:
O: 10MAY2025 07:19:42 4.5N 95.3E ML=3.9 EMSC NORTHERN SUMATRA, INDONESIA
(May 11, 2025)
The last earthquake in Sumatra within about 200 km of today's activity with M>=6 ws an
M 6.2 on January 15, 2023. At the time this summary noted:
"An M 6.2 also occurred today in northern Sumatra, Indonesia. NEIC reported it was felt with intensity IV in Sumatra at Sibolga, Gunung and Kabanjahe and III in Pematang Siantar.
BMG reported intensity V in Aceh Singkil and Manado; IV in Aceh Selatan, Subulussalam, Tapandi Tengah, Nias, Deli Serdang, Pakpak Bharat, Gunungsitoli, Rokan Hilir and III in Aceh Tenggara, Timur, Simeulue, Barat Daya, Subulussalam, among others.
This is the strongest earthquake within about 200 km of this epicenter since an
M 6.7 on September 5, 2011. Subsequent activity at this magnitude level has
occurred about 250-300 km to the west of today's epicenter. The only event of M>6.2
in that region in the past 10 years was an M 6.6 on May 14, 2021 about
300 km southwest of today's epicenter. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.6 in Southern Sumatra in the Nias region of Indonesia. NEIC reported it was felt with intensity VI in Sunung, IV in Kuala Lumpur, Malaysia and II-III in Sumatra at Sibolga, Padang, and in Malaysia at Georgetown and Singapore.
The regional network, ... This earthquake occurred near local solar noon and near the longitude of maximum
tidal stress with the current new moon ...
This event was also probably enhanced by geomagnetic stresses associated with
the geomagnetic storm of May 12-13, the strongest in more than a year. This had
also been noted in the previous issues of this summary:
"A third factor which probably enhanced global seismicity today was a strong
geomagnetic storm which began about the time of M 6.7 in the Mauritius-Reunion
area (about 14:00 UT). Most of the strong activity today occurred near the geomagnetic
equator or at high latitude as expected with strong geomagnetic triggering. As described in this summary, this storm is the
strongest recorded since September 1, 2019:
"The geomagnetic field saw stormy conditions today. The AP level was 41. High latitude geomagnetic field also saw strong storm conditions with AP 47. Strong, sudden commencement storms such as this can enhance seismicity especially near the geomagnetic equator or near the polar auroral regions. This is the strongest geomagnetic storm since AP reached 45 on September 1, 2019 more than 1.5 years ago.." (May 12-13, 2021)
Today's earthquake in the Nias area of Indonesia is the strongest in more
than 30 years. An M 6.8 was recorded about 300 km to the southwest of today's
epicenteron October 15, 1990. The only earthquake of M>=5.6 in the area
since 1990 was an M 5.9 on June 12, 2018. The antipode to today's event is in Ecuador
at 0N 83W, and may see enhanced antipodal seismicity in the next several days." (May 14, 2021, January 16, 2023).
The M 5.8-6.0 in Northern Sumatra today was located at the fourth node (90 degrees) from the M 7.1
in Tonga of March 30, 2025 and may have been promoted by energy from those
sources.
Today's event in Northern Sumatra occurred at the end of solar flare 2660 and
may have been promoted by SFE associated with that flare. Data from SWPC for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2660 0843 0850 0854 C1.3 (May 11, 2025) 8.2E-04
Northern Sumatra M 5.8 08:57 UT
Forecasts 171951 (among others) had expected this activity in Sumatra was likely
around May 8, 2025.
O: 12MAY2025 03:09:38 1.1N 98.9E ML=4.9 BMG Northern Sumatra, Indonesia
O: 11MAY2025 08:57:44 3.7N 97.0E ML=5.8 EMSC Northern Sumatra, Indonesia
O: 11MAY2025 08:57:44 3.9N 96.9E ML=6.2 BMG Northern Sumatra, Indonesia
P: 08MAY2025 171951 1.0N 98.0E 4.0-5.4 BCCAA So. Sumatra
The strongest earthquake in the U.S. or Canada today was an M 4.4 in Unalaska, Alaska. NEIC reported it was felt in Unalaska with intensity III.
An earthquake of M 2.8 occurred in Kentucky today. NEIC reported it was felt with intensity II-III in Kentucky at Lancaster, Nocholasville, Lexington, Lawrenceburg, Brodhead, Georgetown, Louisville; als felt in Portsvouth, Ohio, Gallatin, Kingsport, Clarksville and in North Carolina and Georgia.
NEIC reported an M 5.0 in Venezuela today was felt with maximum intensity V in Trinidad and Tobago at Tunapuna, and Mucurapo Diego Martin and in Saint Davids, Grenada with III in Chaguanas, Port of Spain, San Fernmando, Tacarigua, and in Grenada at Grenville, Saint Andreww and Saint George with II in Arima and Tabaquite, Trinidad and Tobago.
NEIC reported an aftershock of M 4.5 in Venezuela was felt with intensity up to II-III in the area(s) of Venezuela with II in Mucurapo Diego Martin, Trinidad and Tobago and in Saint George, Grenada.
NEIC reported an earthquake of M 5.0 in Kyrgyzstan was felt with intensity up to II-III in the area(s) of Kyrgyzstan at Biskek.
EMSC reported moderate intensity in Bishkek, Rayymbek, Kyrgyzstan and in Kazakshstan at Rayymbek, Almaty, Alatau and in Tashkent, Uzbekistan.
NEIC reported an earthquake of M 2.8 in Northern California was felt with intensity up to II-III in the area(s) of Northern California at Potter Valley.
NEIC reported an earthquake of M 2.8 in Oklahoma was felt with intensity up to II-III in the area(s) of Oklahoma with III in Prague and Paden.
NEIC reported an earthquake of M 2.5 in Ohio was felt with intensity up to II-III in the area(s) of Ohio with IV in Strongsville and Middletown and III in Geneva, Madison, Rock Creek, Thompson and in Alden New York. Also felt as far as Vermont with intensity II.
NEIC reported an earthquake of M 4.3 in Northern Mexico was felt with intensity up to II-III in the area(s) of Northern Mexico in Nuevo Leon at Apodaca and III in Allende, Garza, Guadalupe, Juarez and in Coahuila, Mexico at Saltillo, Ramos Arizpe and in Rio Grande City, Texas.
NEIC reported an earthquake of M 2.5 in British Columbia was felt with intensity up to II-III in the area(s) of British Columbia at Victoria and Nanaimo.
NEIC reported an earthquake of M 4.2 in Romania was felt with intensity up to II-III in the area(s) of Romania at Galati.
EMSC reported moderate shaking in Romania at Focsani, Satu Nou, Gura Saratii, Buzau, Faurei, Campina, Bacau, Balad, Fantanele, Galati, Braila, Bucuresti, Tulcea, and in Moldova at Cahul among others.
NEIC reported an earthquake of M 4.6 in Colombia was felt with intensity up to II-III in the area(s) of Colombia at Bucaramanga, Santander.
NEIC reported an earthquake of M 2.9 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas in Midland.
No Tropical Cyclones are currently active.
A tropical cyclone may be forming south of Papua New Guinea. This system is currently
located at 8S 137E and tracking to the south with winds up to 33 kts. Some enhanced seismicity in New Guinea is possible as this storm is in the region. The antipode is at 8N 43W in the Central Mid-Atlantic Ridge where a moderate earthquake occurred yesterday, an event that may have been promoted by energy from this storm.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2590 0002 0009 0013 C1.2 (May 11, 2025) 7.2E-04
2600 0049 0054 0057 C1.0 (May 11, 2025) 3.8E-04
Fiji M 4.6 00:49 UT
2610 0117 0121 0129 C1.2 (May 11, 2025) 9.3E-04
Ecuador M 4.7 01:29 UT
2620 0408 0418 0424 C1.6 (May 11, 2025) 1.2E-03
2650 0730 0739 0746 C2.1 (May 11, 2025) 5.6E-04
Alaska Peninsula M 4.0 07:45 UT
2660 0843 0850 0854 C1.3 (May 11, 2025) 8.2E-04
Northern Sumatra M 5.8 08:57 UT
2680 1052 1059 1102 C1.3 (May 11, 2025) 1.1E-03
2690 1102 1115 1120 C3.2 (May 11, 2025) 7.9E-04
2700 1125 1130 1135 C2.6 (May 11, 2025) 1.6E-03
Vanuatu M 5.9 11:22 UT
Primor'ye Russia M 4.6 11:39 UT
2740 1412 1419 1426 C1.3 (May 11, 2025) 5.7E-04
2750 1452 1501 1510 C3.8 (May 11, 2025) 6.8E-04
2770 1607 1617 1621 C2.6 (May 11, 2025) 1.6E-03
2800 1816 1820 1824 C1.3 (May 11, 2025) 6.5E-04
Ecuador M 3.7 18:20 UT
Sumatra M 3.2 18:18 UT
Romania M 4.2 18:34 UT
2830 2020 2028 2031 C1.1 (May 11, 2025) 7.7E-04
2840 2129 2152 2205 C2.3 (May 11, 2025) 4.0E-03
Chukotka, Russia M 5.3 21:50 UT
Tonga M 5.4 22:04 UT
Mindanao M 4.0 21:37 UT
2850 2334 2344 2348 C5.1 (May 11, 2025) 6.4E-04
Myanmar M 4.0 23:42 UT
2860 2355 0001 0006 M1.9 (May 11, 2025) 8.7E-03
Tonga M 4.8 00:40 UT
Venezuela M 5.0 00:41 UT
Gulf of California M 4.0 00:50 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 13 unsettled May 12 and 14. Solar M-flare chance: 1% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 15 24 11 15:00 5 77 126
A strong Gamma Ray Burst was recorded by SWIFT on May 9, 2025 at 22:33:30 UT (#250509A). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the M 6.8 in Macquarie Island region (white stipples).
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 12 09 28 2025 61.5 -149.3 3.2 SOUTHERN ALASKA M81 SG137 T83 D133 MA123 Z115 NG27
05 12 09 26 2025 40.8 35.2 4.4 CENTRAL TURKEY M54 SG129 T147 D129 MA138 Z143 NG50
05 12 09 23 2025 40.8 35.2 4.5 CENTRAL TURKEY M54 SG129 T147 D129 MA138 Z143 NG50
05 12 09 15 2025 -21.5 -69.2 4.1 ANTOFAGASTA, CHILE M166 SG92 T95 D35 MA95 Z95 NG115
05 12 08 29 2025 19.1 -67.9 3.6 DOMINICAN REPUBLIC REGION M136 SG132 T110 D75 MA132 Z128 NG74
05 12 07 56 2025 29.1 66.6 4.6 PAKISTAN M27 SG106 T124 D137 MA112 Z116 NG59
05 12 07 42 2025 37.2 -118.3 2.7 CENTRAL CALIFORNIA M112 SG129 T77 D102 MA117 Z108 NG54
05 12 07 12 2025 19.3 -64.9 3.4 VIRGIN ISLANDS REGION M134 SG133 T113 D75 MA133 Z130 NG74
05 12 06 49 2025 11.0 -62.4 4.5 OFFSHORE SUCRE, VENEZUELA M140 SG125 T113 D67 MA127 Z125 NG83
05 12 06 38 2025 41.5 74.9 5.0 KYRGYZSTAN M26 SG115 T118 D151 MA117 Z119 NG46
05 12 06 20 2025 -55.0 -32.4 4.9 SOUTH GEORGIA ISLAND REGION M129 SG61 T98 D19 MA71 Z76 NG149
05 12 05 36 2025 62.7 178.5 4.6 NEAR S COAST OF CHUKOTKA, M67 SG130 T82 D147 MA117 Z111 NG24
05 12 05 21 2025 31.6 -104.3 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 12 04 25 2025 39.5 -123.1 2.8 NORTHERN CALIFORNIA M108 SG129 T76 D106 MA116 Z108 NG51
05 12 03 48 2025 18.6 -65.1 3.1 VIRGIN ISLANDS REGION M135 SG132 T113 D75 MA133 Z129 NG75
05 12 03 42 2025 39.5 -123.1 2.9 NORTHERN CALIFORNIA M108 SG129 T76 D106 MA116 Z108 NG51
05 12 03 36 2025 54.4 161.5 4.0 NEAR EAST COAST OF KAMCHATKA M58 SG119 T77 D152 MA108 Z102 NG31
05 12 03 16 2025 35.6 -96.7 2.8 OKLAHOMA M121 SG137 T91 D95 MA128 Z120 NG57
05 12 03 09 2025 1.1 98.9 4.9 NORTHERN SUMATRA, INDONESIA M20 SG70 T87 D123 MA71 Z75 NG85
05 12 02 47 2025 41.7 -81.0 2.5 OHIO M116 SG149 T105 D98 MA141 Z134 NG51
05 12 02 17 2025 35.1 22.5 4.4 CENTRAL MEDITERRANEAN SEA M64 SG130 T159 D118 MA142 Z149 NG57
05 12 02 10 2025 54.5 161.3 4.3 NEAR EAST COAST OF KAMCHATKA M58 SG119 T77 D152 MA108 Z102 NG31
05 12 01 33 2025 41.6 74.8 4.5 KYRGYZSTAN M26 SG115 T118 D151 MA117 Z119 NG46
05 12 01 29 2025 25.2 -99.6 4.3 NUEVO LEON, MEXICO M130 SG127 T85 D85 MA118 Z111 NG67
05 12 00 50 2025 25.6 -110.8 4.0 GULF OF CALIFORNIA M126 SG123 T76 D89 MA112 Z104 NG66
05 12 00 41 2025 10.9 -62.4 5.0 OFFSHORE SUCRE, VENEZUELA M140 SG125 T113 D67 MA127 Z125 NG83
05 12 00 40 2025 -16.9 -173.8 4.8 TONGA M96 SG58 T3 D84 MA44 Z35 NG103
05 11 23 42 2025 20.0 96.3 4.0 MYANMAR M2 SG88 T96 D141 MA89 Z91 NG66
05 11 22 33 2025 41.3 78.8 4.4 SOUTHERN XINJIANG, CHINA M24 SG113 T115 D153 MA115 Z117 NG46
05 11 22 18 2025 29.0 87.5 3.8 WESTERN XIZANG M10 SG99 T106 D147 MA101 Z103 NG58
05 11 22 07 2025 35.7 -118.5 2.0 CENTRAL CALIFORNIA M114 SG128 T76 D101 MA116 Z107 NG55
05 11 22 04 2025 -20.5 -174.1 5.4 TONGA M97 SG54 T0 D81 MA41 Z32 NG107
05 11 22 02 2025 47.9 -124.3 2.5 OLYMPIC PENINSULA, WASHINGTON M101 SG135 T81 D114 MA122 Z113 NG42
05 11 21 49 2025 62.8 178.5 5.3 NEAR S COAST OF CHUKOTKA, M67 SG130 T83 D147 MA118 Z111 NG24
05 11 21 37 2025 9.1 126.8 4.0 MINDANAO, PHILIPPINES M32 SG72 T65 D131 MA67 Z66 NG76
05 11 21 25 2025 24.7 122.4 4.9 TAIWAN REGION M24 SG88 T76 D147 MA83 Z81 NG61
05 11 21 11 2025 29.0 87.6 5.6 WESTERN XIZANG M10 SG99 T106 D147 MA101 Z103 NG58
05 11 21 11 2025 29.0 87.5 5.7 WESTERN XIZANG M10 SG99 T106 D147 MA101 Z103 NG58
05 11 19 22 2025 0.8 -79.2 3.8 NEAR COAST OF ECUADOR M156 SG112 T94 D58 MA110 Z107 NG92
05 11 18 48 2025 -6.2 151.5 4.7 NEW BRITAIN REGION, P.N.G. M61 SG58 T36 D109 MA47 Z43 NG91
05 11 18 34 2025 45.6 26.5 4.2 ROMANIA M60 SG137 T149 D128 MA146 Z151 NG46
05 11 18 20 2025 -2.8 -78.5 3.7 ECUADOR M160 SG109 T94 D54 MA108 Z105 NG96
05 11 18 14 2025 -2.8 -78.5 4.2 ECUADOR M160 SG109 T94 D54 MA108 Z105 NG96
05 11 18 00 2025 27.6 -111.6 3.8 GULF OF CALIFORNIA M123 SG124 T76 D91 MA113 Z105 NG64
05 11 17 38 2025 -17.7 168.1 4.7 VANUATU M80 SG51 T17 D92 MA37 Z30 NG103
05 11 17 05 2025 -44.3 -82.2 4.7 WEST CHILE RISE M157 SG68 T77 D15 MA70 Z70 NG137
05 11 16 56 2025 -57.1 -68.0 3.8 DRAKE PASSAGE M143 SG58 T81 D0 MA63 Z66 NG150
05 11 13 36 2025 31.6 -104.0 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 11 12 13 2025 -29.1 141.2 2.9 NEW SOUTH WALES, AUSTRALIA M66 SG34 T41 D90 MA27 Z26 NG114
05 11 12 12 2025 19.3 -64.9 3.5 VIRGIN ISLANDS REGION M134 SG133 T113 D75 MA133 Z130 NG74
05 11 11 56 2025 31.6 -104.3 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 11 11 53 2025 -56.9 -68.7 3.7 DRAKE PASSAGE M143 SG58 T81 D0 MA63 Z66 NG150
05 11 11 41 2025 36.9 -117.7 2.0 CENTRAL CALIFORNIA M113 SG129 T77 D102 MA117 Z109 NG54
05 11 11 39 2025 46.2 136.2 4.6 PRIMOR'YE, RUSSIA M40 SG109 T80 D161 MA101 Z97 NG39
05 11 11 24 2025 18.9 -65.2 3.7 PUERTO RICO REGION M135 SG133 T113 D75 MA133 Z130 NG75
05 11 11 22 2025 -17.7 168.3 5.9 VANUATU M81 SG51 T17 D92 MA37 Z30 NG103
05 11 11 22 2025 -17.7 168.0 6.3 VANUATU M80 SG51 T17 D92 MA37 Z30 NG103
05 11 10 46 2025 19.1 -65.0 3.6 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 NG74
05 11 10 41 2025 7.4 -73.8 4.6 NORTHERN COLOMBIA M149 SG120 T101 D64 MA119 Z116 NG86
05 11 10 19 2025 27.7 -111.7 3.6 GULF OF CALIFORNIA M123 SG124 T76 D91 MA113 Z105 NG63
05 11 10 10 2025 1.5 126.4 4.4 MOLUCCA SEA M35 SG65 T62 D123 MA60 Z59 NG84
05 11 09 56 2025 31.7 -104.5 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 11 09 55 2025 19.1 -64.9 3.9 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 NG74
05 11 09 46 2025 -24.2 -67.3 4.6 SALTA, ARGENTINA M164 SG90 T95 D32 MA93 Z94 NG117
05 11 09 39 2025 33.9 -115.5 2.3 SOUTHERN CALIFORNIA M116 SG128 T77 D98 MA116 Z108 NG57
05 11 09 29 2025 53.5 -166.7 4.4 FOX ISLANDS, ALEUTIAN ISLANDS M76 SG125 T73 D135 MA111 Z104 NG34
05 11 09 07 2025 48.2 -123.2 2.0 STR. OF JUAN DE FUCA, WASHINGT M101 SG136 T81 D114 MA123 Z114 NG42
05 11 08 57 2025 3.9 97.0 5.8 NORTHERN SUMATRA, INDONESIA M18 SG73 T90 D125 MA75 Z78 NG82
05 11 08 57 2025 3.7 96.9 6.2 NORTHERN SUMATRA, INDONESIA M18 SG73 T90 D125 MA75 Z78 NG83
05 11 08 43 2025 40.3 -124.5 2.0 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 11 08 27 2025 19.1 -66.5 3.0 PUERTO RICO REGION M135 SG132 T112 D75 MA132 Z129 NG74
05 11 08 26 2025 31.9 -102.0 2.1 WESTERN TEXAS M123 SG132 T86 D92 MA122 Z114 NG60
05 11 08 09 2025 40.9 78.2 4.4 SOUTHERN XINJIANG, CHINA M24 SG113 T116 D153 MA115 Z117 NG47
05 11 07 49 2025 27.5 -111.5 4.2 GULF OF CALIFORNIA M124 SG124 T76 D91 MA113 Z105 NG64
05 11 07 45 2025 58.3 -155.1 4.0 ALASKA PENINSULA M80 SG132 T79 D133 MA119 Z111 NG30
05 11 07 41 2025 37.8 -84.6 2.8 EASTERN KENTUCKY M120 SG144 T101 D95 MA136 Z129 NG55
05 11 07 27 2025 19.1 -66.5 3.0 PUERTO RICO REGION M135 SG132 T112 D75 MA132 Z129 NG74
05 11 07 24 2025 19.1 -66.4 3.1 PUERTO RICO REGION M135 SG133 T112 D75 MA132 Z129 NG74
05 11 07 15 2025 32.3 137.4 4.0 IZU ISLANDS, JAPAN REGION M38 SG95 T70 D149 MA87 Z83 NG53
05 11 07 06 2025 31.6 -104.5 3.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
May 11, 2025
Notable earthquakes:
A series of moderate quakes near the Peru-Ecuador border today could lead to a larger event in this area or at the antipode near Sumatra. These are occurring near the maximum stress with the full moon of May 12.
An earthquake of M 4.2 occurred north of Libya today. This is the strongest quake in the area since a series in Malta starting January 17, 2023.
An M 4.1 was widely felt in the area of eastern Tennessee and the entire eastern U.S. today. It was felt with intensity up to VI. This is one of three event of M>=4.1 in eastern Tennessee in the past 35 years.
The full moon of May 12 may bring the current lull in global seismicity to a halt. Expected enhanced seismicity is expected as:
The full moon will arrive on May 12, 2025 at 16:56 UT. Longitudes which are sub-solar (local solar noon) are near 75 West while those at local solar midnight are near 105 East longitude. In the west these include areas of Central America and the Caribbean and the west coast of South America while in the east these areas include western Indonesia, southeast and central Asia. These areas are most likely to see tidal triggering with this full moon.
ECUADOR/PERU
A series of moderate quakes on the Peru-Ecuador border today could lead to a larger event. These are occurring near the maximum stress with the full moon of May 12.
The series has been felt with intensity up to III in Piura, Peru at Mancora and Talara and in Loja, Ecuador at Cariamanga.
It has included earthquakes of M 4.7 and an M 4.7 to the north in Ecuador,
The event in Ecuador was reported with intensity IV in Eloy Alfaro, Guayas and II in Cuenca Azuay, Ecuador.
The last earthquake within about 150 km of today's epicenters in Ecuador with
M>=4.7 occurred as an M 5.2 on May 21, 2024. These could be considered
regional aftershocks of a major M 6.8 of March 18, 2023. At the time this summary noted:
"A strong M 6.7-6.8 hit the coast of Western Ecuador and northern Peru today.
NEIC reported it was felt with maximum intensity IX at Balao, Guayas, Ecuador; VIII in Naranjito; VI in Naranjal, VI in Plahyas, Guayaquil, Santa Lucia, Cuenca Azuay, V in Samborondon, Eloy Alfaro among others. Initial news reports indicate extensive but minor damage to buildings and
structures with at least eleven people killed in the quake including one in Peru. Much of the damage
and casualties occurred in Cuenca and Machala when walls collapsed. The epicenter
was near Balao about two hours from Guayaquil. It was felt in at least 13 provinces
of Ecuador. Many communities lost power and a two-story home and wharf collapsed. No tsunami was observed
nor expected.
The time of this earthquake in Ecuador was within about 12 minutes of local
solar noon at a longitude near the longitude of maximum tidal stress (see above)
with the coming new moon. It is likely this earthquake was promoted by strong tidal stresses associated
with the new moon of March 21" (March 18, 2023)
"Today's earthquake of M 6.7 is the strongest in Ecuador within about 200 km
of this epicenter in at least 35 years. An M 7.5 hit about 300 km northeast of this on February 22, 2019
and another was an M 7.1 on August 12, 2010. These were both at intermediate
epicenters and were felt on the surface with moderate intensity as
reported on February 22, 2019:
"A major earthquake of M 7.5 (EMSC) to 7.7 (IGP) hit the coast of Ecuador today. It occurred at an intermediate depth of 132 km and
was felt with moderate intensity throughout much of Ecuador. NEIC reported maximum intensity V-VII in Ecuador was felt
at Gualaceo, Azuay, Guayaquil, Loja, Eloy Alfaro, Puebloviejo (VI), La Troncal, Azogues (VII), Gualaceo, Ecuador in Peru at Piura, Tarapoto, Iquitos, Jaen, Yunmaguas, Tumbes (VII), and with intensity VI in Ecuador at Puyo Pastaca, Banos, Tungurahua, Ambato, Cuenca, Zamora, Santa Lucia, Machala, Playas Guayas, Portoviejo, Manta, Salinas and in Peru at Moyobamba, Colan, Huanchanco, and in general within about 1000 km from the epicenter.
IGP reported intensity V in Pastaza with an aftershock of M 5.7 felt with III in Zarumilla, Peru. Some damage was reported. News sources on the web reported
NEIC reported this aftershock at M 5.5 was felt in Ecuador with intensity V in Guayaquil, and Santa Lucia, and II-III in Ecuador at Eloy Alfara, Guayas, Cuenca Azuay, Machala, Pajan, Santa Elena, Montecristi, Banos and Manta, Ecuador. no injuries associated with the quake. This was probably due to the intermediate
depth. A shallow quake would have caused considerable damage and destruction.
A slightly larger quake of M 7.8 on April 16, 2016 killed more than 700 people
and destroyed hundreds of buildings and cost more than $3 billion in damages.
Earthquakes of this size in Ecuador can help promote seismicity in California
several months later. This summary will follow this in future issues.
...
The last earthquake located within about 250 km of today's M 7.5 occurred more
than 30 years ago. The only comparable event in the region in this time period
was the M 7.8 off Ecuador on April 16, 2016. That event occurred about 350 km northwest of today's epicenter." (February 22, 2019, March 18, 2023)
Today's activity is near the longitude of maximum tidal stress with the full moon
of May 12 and may have been promoted by stresses associated with that tidal alignment (see above).
The antipode of today's activity in Ecuador is in Sumatra near 4N 99E. Moderate
enhancement of seismicity could occur near this epicenter Sumatra in the next several days.
Following the great M 9.0 earthquake of December 26, 2004, this relationship
between Sumatra and Ecuador earthquakes was emphasized in this summary twenty
years ago in May, 2005 as:
"An earthquake measuring M 6.1 occurred today in the region near the Peru-Ecuador
border. It was followed later in the day by a strong earthquake in the Sumatra/
Nicobar Islands with M 5.5-6.5. Data on the NEIC website indicated that the Ecuador
quake was reported felt with maximum intensity IV about 150 km from the epicenter in the city of Guayaquil,
Ecuador. It was also reported felt more than 400 km to the north in Quito,
Ecuador. There were no immediate reports of damage or injuries. In neighboring Colombia,
officials have raised the volcanic alert on Galeras Volcano to level two meaning
an eruption could occur within days or weeks at that Volcano.
The earthquake epicenter is within about 200 km of the exact antipode of
the M 6.7-6.9 event in the Sibolga, Sumatra area of Indonesia which
occurred two days ago on May 19. This was one of only three aftershocks of
the M 9.3 quake in the region which have had magnitudes of M>=6.9 (EMSC data).
When that event occurred we noted the relation to the Peru-Ecuador-Colombia
seismicity when we stated in this summary: "A series of events in the antipodal
region of Peru, Ecuador and Colombia also occurred over the past day.
The most interesting of these in terms of possible triggering occurred
within about 200 km of the exact antipode of today's Nias event of M 6.9
about 30 minutes prior to the Nias event with M 4.5." (geoForecaster Inc.
May 19, 2005). We have discussed this antipodal relationship in several previous
summaries during the past five months." (May 22, 2005)
A moderate M 3.9 occurred near the antipode of Ecuador today in northern Sumatra and may be
a foreshock to a coming regional event. Parameters for this event follow:
O: 10MAY2025 07:19:42 4.5N 95.3E ML=3.9 EMSC NORTHERN SUMATRA, INDONESIA
The activity in Ecuador is at 103 degrees from the M 6.9 in New Zealand of
March 25 and 105 degrees from the M 6.9 in Macquarie Island region and at the fourth node (90 degrees) from the M 7.1 in Tonga of March 30 and at the seventh node (52 degrees) from the M 7.4 in the Drake Passage
of May 2 and may have been promoted by energy from those sources.
Forecast 171639 had expected this activity in Ecuador was likely within about 200
km around May 7.
O: 10MAY2025 12:12:53 2.6S 79.7W mb=4.7 EMSC NEAR COAST OF ECUADOR
O: 11MAY2025 01:29:57 3.9S 80.9W mb=4.7 EMSC PERU-ECUADOR BORDER REGION
O: 11MAY2025 01:54:20 4.0S 80.9W ML=3.8 EMSC PERU-ECUADOR BORDER REGION
O: 11MAY2025 02:07:09 4.0S 80.9W mb=4.7 EMSC PERU-ECUADOR BORDER REGION
O: 11MAY2025 02:59:30 4.0S 81.0W ML=4.3 EMSC PERU-ECUADOR BORDER REGION
O: 11MAY2025 05:16:50 4.0S 80.9W mb=4.7 EMSC PERU-ECUADOR BORDER REGION
O: 11MAY2025 02:44:17 4.1S 81.0W ML=4.2 EMSC NEAR COAST OF NORTHERN PERU
O: 11MAY2025 05:42:42 4.1S 81.0W ML=4.4 EMSC NEAR COAST OF NORTHERN PERU
O: 11MAY2025 05:53:45 4.1S 81.0W ML=4.2 EMSC NEAR COAST OF NORTHERN PERU
O: 10MAY2025 07:19:42 4.5N 95.3E ML=3.9 EMSC NORTHERN SUMATRA, INDONESIA
O: 10MAY2025 12:12:53 2.6S 79.7W ML=4.7 ANSS Ecuador/Peru
P: 07MAY2025 171639 2.0S 78.0W 4.0-5.5 BABBA Ecuador
LIBYA:
A moderate M 4.2 hit the area north of Libya today. NEIC reported it was felt with intensity III in Tarabulus, Libya.
EMSC reported moderate shaking in Libya at Al Khums and Tripoli.
This is the strongest earthquake within about 200 km of this epicenter since an M 5.0 and M 5.1 about 200 km north
of this epicenter on January 17 and 18, 2023. At the time this summary noted:
"An earthquake of M 5.0 occurred near Malta in the Central Mediterranean today. NEIC reported it was felt with intensity I-II in Malta at Floriana and Ta Xbiex, Inner Harbour and San Pawl il-Bahar.
A foreshock of M 4.2 was felt with intensity III in Mellieha, Northern Malta.
This earthquake occurred simultaneously with a C3.0 solar flare which began
at the time of the M 5.0 in Malta. This earthquake of M 5.0 is the strongest
within about 150 km of this epicenter in the past 30 years. An M 5.3 occurred about 200
km west of this on September 10, 1993 and near this epicenter with M 5.3 on September 29, 1992.
The epicenter was within minutes of local solar midnight when the M1.8 class
solar flare began (#1310) and was probably promoted by SFE associated with
that flare which maximize at this hour" (Jamuary 18, 2023)
Forecast 171793 had expected enhanced seismicity in the area of Malta in late April, 2025.
O: 10MAY2025 17:35:28 33.2N 14.0E ML=4.2 ANSS North of Libya
P: 23APR2025 171793 36.0N 9.0E 3.0-4.9 DCCAA Western Mediterranean
EASTERN TENNESSEE
An M 4.1 was widely felt in the area of eastern Tennessee today. It was felt with intensity up to VI in the epicentral area near Fontana Dam, Teneessee. NEIC had nearly 45,000 felt reports for this earthquake.
This epicenter is near the maximum tidal stress longitude for the full moon of
May 12 and may have been promoted by stresses associated with that event.
Among many other reported intensities, NEIC reported intensity V in North Carolina, Kentucky and Tennessee; IV New York, New Jersey, Pennsylvania, Virginia, West Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, Tennessee, Kentucky, Ohio, Michigan, Illinois, Missouri with III as far as Massachusetts, Portland Maine, Connecticut, Maryland.
The last earthquake in eastern Tennessee within about 150 km of this epicenter
occurred on December 12, 2018 about 100 km to the west of today's epicenter.
The only other event in eastern Tennessee with equal of greater magnitude than
M 4.1 in the past 35 years was an M 4.6 about 200 km west of today's epicenter
on April 29, 2003. At the time of the December, 2018 event this summary noted:
"A moderate earthquake of M 4.4 was widely felt in the region of eastern Tennessee today.
It was followed by several light aftershocks. NEIC reported maximun intensity with this earthquake of V felt in Tennessee at Ten Mile, Decatur, Grandview; IV in Dayton, Sweetwater, Athens, and III in Spring City, Niota, Evansville, Philadelphia. It was reported felt as far as Georgia, Alabama, North and South Carolina, and other areas of the SE U.S. within about 300 km of the epicenter.
This epicenter is located at 103 degrees from the M 7.1 in the South Sandwich Islands which occurred yesterday. The layered earth reflects and refracts seismic energy off internal transition layers. In this case energy arriving at the core-mantle boundary is reflected and refracted back to the surface. Because of the strong differential oof material on either side of
this boundary, nearly all energy which would normally be spread out in the distance range 105-144 degrees from the energy source arrives
at the surface in the limited range of about 100-105 degrees. This is 7-8 times more concentrated
than at other distances and can help to trigger unusual and strong earthquakes at the energy source,
as in the case of the South Sandwich Ilnds (100 degrees from the Loyalty Islands) and Tennessee (103 degrees from the South Sandwich Islands.).
This epicenter is also at 103 degrees from the M 8.2 in Fiji of August, the last great global earthquake. The last earthquake of M>=4.4 in eastern Tennessee within about 200 km of today's epicnter
occurred as an M 4.6 on April 29, 2003 about 200 km southwest of today's epicenter.
It was the only other such event in the are in the past 30 years at least.
An earthquake of M 4.6 hit the area on January 19, 1976 and an M 5.6 may have occurred on November 30, 1973.
The mainshock magnitude of this event is in question.
Forecast 121788 had expected activity in this area was likely around December 8.
This summary issued a special report in regard to the April, 2003 quake and noted
it in this summary as:
"An earthquake of M 4.9 occurred this morning in the southern portion of the
Eastern Tennessee Seismic Zone near the tri-state border of Georgia, Alabama and
Tennessee. While this event did not do significant damage in the region, it
was felt over a broad area from Illinois to West Virginia and from Kentucky
to southern Alabama." (April 30, 2003, December 12, 2018)
Today's epicenter is near the third node (120 degrees) from Myanmar; the fourth node from
the Drake Passage (90 degrees) and 102 degrees from Tonga and may have
been promoted by energy from those larger recent earthquakes.
The earthquake in eastern Tennessee may also have been promoted by SFE associated
with solar flare 2510 (C2.4) as it occurred towards the end of that flare
which parameters from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2510 1249 1255 1259 C2.4 (May 10, 2025) 1.7E-03
Eastern Tennessee M 4.1 13:04 UT
Forecast 172031 (among others) expected enhanced seismicity in this region
of Tennessee was likely in early May or late April, 2025.
O: 10MAY2025 13:04:20 35.5N 83.9E ML=4.1 ANSS Eastern Tennessee
P: 01MAY2025 172031 35.0N 82.0E 2.0-4.2 CABAA Kentucky/Tennessee/NC
NEIC reported an earthquake of M 4.6 in Central Chile was felt with intensity up to II-III in the area(s) of Central Chile with II in Santiago.
EMSC reported moderate to strong shaking in Valpariso at Melipilla, Cerro Navia, Valparaiso, Rancagua, Machali, Puchuncavi.
NEIC reported an earthquake of M 3.0 in Northern California was felt with intensity up to II-III in the area(s) of Northern California at Paradise.
NEIC reported an earthquake of M 2.8 in Western Nevada was felt with intensity up to II-III in the area(s) of Western Nevada in Gardnerville.
EMSC reported an earthquake of M 4.3 in Negros, Philippines was felt with intensity up to IV in the area(s) of Negros, Philippines in Dumaguete City.
EMSC reported an earthquake of M 4.1 in Kyrgyzstan was felt with intensity up to IV in the area(s) of Kyrgyzstan in Almaty, Kazakhstan, Light Sahking was also noted in Kazakhstan at Alatau, Ashhybulaq, Qaraqastek, Shyrganaq and in Kant, Kyrgyzstan among others.
No Tropical Cyclones are currently active.
A tropical cyclone may be forming south of Papua New Guinea. This system is currently
located at 8S 137E and tracking to the south with winds up to 33 kts. Some enhanced seismicity in New Guinea is possible as this storm is in the region. The antipode is at 8N 43W in the Central Mid-Atlantic Ridge where a moderate earthquake occurred yesterday, an event that may have been promoted by energy from this storm.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2390 0055 0103 0106 C3.1 (May 10, 2025) 1.4E-03
Fiji M 4.5 01:06 UT
Buryatiya, Russia M 3.9 01:17 UT
2410 0342 0352 0358 C1.9 (May 10, 2025) 1.4E-03
2460 0727 0734 0738 C1.0 (May 10, 2025) 6.6E-04
2500 1048 1108 1112 C1.0 (May 10, 2025) 1.8E-03
2490 1112 1236 1249 C2.4 (May 10, 2025) 8.7E-04
2510 1249 1255 1259 C2.4 (May 10, 2025) 1.7E-03
Eastern Tennessee M 4.1 13:04 UT
2560 1616 1621 1626 C5.5 (May 10, 2025) 2.7E-03
Banda Sea M 4.3 16:24 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 10-11 unsettled May 12. Solar M-flare chance: 40% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 15 24 11 15:00 5 77 136
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the North and South Geomagnetic poles due to the geomagnetic
storm today.
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 11 08 09 2025 40.8 78.1 4.4 SOUTHERN XINJIANG, CHINA M24 SG113 T116 D152 MA115 Z117 NG47
05 11 07 49 2025 27.5 -111.5 4.2 GULF OF CALIFORNIA M124 SG124 T76 D91 MA113 Z105 NG64
05 11 07 24 2025 19.1 -66.4 3.1 PUERTO RICO REGION M135 SG133 T112 D75 MA132 Z129 NG74
05 11 07 15 2025 32.4 137.3 4.0 IZU ISLANDS, JAPAN REGION M38 SG95 T70 D149 MA87 Z83 NG53
05 11 07 06 2025 31.6 -104.5 3.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 11 06 48 2025 9.6 123.0 4.3 NEGROS, PHILIPPINES M28 SG73 T68 D132 MA69 Z68 NG76
05 11 06 44 2025 46.2 53.3 4.2 WESTERN KAZAKHSTAN M42 SG126 T133 D143 MA131 Z134 NG43
05 11 06 43 2025 -33.8 -71.5 4.6 VALPARAISO, CHILE M163 SG80 T88 D23 MA83 Z84 NG127
05 11 06 25 2025 -15.9 -74.6 4.3 NEAR COAST OF SOUTHERN PERU M169 SG97 T92 D41 MA98 Z97 NG109
05 11 06 05 2025 19.0 -65.2 3.0 PUERTO RICO REGION M135 SG133 T113 D75 MA133 Z130 NG75
05 11 05 53 2025 -4.1 -81.0 4.2 NEAR COAST OF NORTHERN PERU M161 SG107 T91 D53 MA105 Z102 NG97
05 11 05 42 2025 -4.1 -81.0 4.4 NEAR COAST OF NORTHERN PERU M161 SG107 T91 D53 MA105 Z102 NG97
05 11 05 29 2025 -56.8 -68.3 3.3 DRAKE PASSAGE M143 SG58 T81 D0 MA63 Z66 NG150
05 11 05 16 2025 -4.0 -80.9 4.7 PERU-ECUADOR BORDER REGION M161 SG107 T91 D53 MA105 Z102 NG97
05 11 05 11 2025 -56.5 -67.6 3.4 DRAKE PASSAGE M143 SG58 T81 D0 MA64 Z66 NG150
05 11 05 00 2025 50.9 156.2 4.8 KURIL ISLANDS M54 SG115 T75 D153 MA104 Z98 NG35
05 11 04 52 2025 -5.8 147.4 5.0 EASTERN NEW GUINEA REG., P.N.G M57 SG58 T40 D111 MA48 Z44 NG91
05 11 04 10 2025 39.5 -122.0 3.0 NORTHERN CALIFORNIA M109 SG130 T76 D106 MA117 Z108 NG51
05 11 04 06 2025 18.3 -66.4 3.0 PUERTO RICO M136 SG132 T112 D74 MA132 Z128 NG75
05 11 03 09 2025 19.3 -66.3 3.2 PUERTO RICO REGION M135 SG133 T112 D75 MA133 Z129 NG74
05 11 02 59 2025 -4.0 -81.0 4.3 PERU-ECUADOR BORDER REGION M161 SG107 T91 D53 MA105 Z102 NG97
05 11 02 44 2025 -4.1 -81.0 4.2 NEAR COAST OF NORTHERN PERU M161 SG107 T91 D53 MA105 Z102 NG97
05 11 02 42 2025 31.7 -104.2 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 11 02 07 2025 -4.0 -80.9 4.7 PERU-ECUADOR BORDER REGION M161 SG107 T91 D53 MA105 Z102 NG97
05 11 01 54 2025 -4.0 -80.9 3.8 PERU-ECUADOR BORDER REGION M161 SG107 T91 D53 MA105 Z102 NG97
05 11 01 46 2025 31.7 -104.3 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 11 01 29 2025 -3.9 -80.9 4.7 PERU-ECUADOR BORDER REGION M161 SG107 T91 D53 MA105 Z102 NG97
05 11 01 04 2025 32.6 -115.3 2.9 BAJA CALIFORNIA, MEXICO M118 SG127 T76 D97 MA115 Z107 NG58
05 11 01 01 2025 32.6 -115.2 2.5 BAJA CALIFORNIA, MEXICO M118 SG127 T76 D97 MA115 Z107 NG58
05 11 00 49 2025 -23.7 179.4 4.6 SOUTH OF FIJI ISLANDS M93 SG49 T7 D81 MA35 Z26 NG110
05 11 00 36 2025 44.4 148.6 4.6 KURIL ISLANDS M48 SG108 T72 D153 MA98 Z93 NG41
05 10 23 37 2025 31.7 -104.1 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 10 23 31 2025 31.7 -104.5 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 10 22 50 2025 33.3 -116.4 2.2 SOUTHERN CALIFORNIA M116 SG127 T76 D98 MA115 Z107 NG58
05 10 20 53 2025 40.3 -124.7 2.1 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 10 20 38 2025 2.1 124.2 4.2 CELEBES SEA M33 SG66 T64 D124 MA61 Z61 NG83
05 10 20 23 2025 17.9 122.7 4.0 LUZON, PHILIPPINES M25 SG81 T72 D140 MA76 Z75 NG68
05 10 20 20 2025 -7.6 128.7 4.3 KEPULAUAN BARAT DAYA, INDONESI M43 SG56 T56 D114 MA51 Z50 NG93
05 10 20 10 2025 19.1 -66.6 3.4 PUERTO RICO REGION M135 SG132 T112 D75 MA132 Z129 NG74
05 10 20 04 2025 33.6 -116.7 2.1 SOUTHERN CALIFORNIA M116 SG127 T76 D98 MA115 Z107 NG57
05 10 19 23 2025 31.7 -115.9 3.1 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 10 19 11 2025 19.1 -66.5 3.0 PUERTO RICO REGION M135 SG132 T112 D75 MA132 Z129 NG74
05 10 19 10 2025 -57.3 -67.4 3.5 DRAKE PASSAGE M142 SG58 T81 D0 MA63 Z66 NG150
05 10 19 02 2025 19.2 -67.3 3.5 PUERTO RICO REGION M135 SG132 T111 D75 MA132 Z129 NG74
05 10 18 02 2025 -1.6 -77.7 4.2 ECUADOR M158 SG110 T95 D55 MA109 Z106 NG95
05 10 17 51 2025 -18.0 -178.3 4.2 FIJI REGION M92 SG55 T4 D85 MA41 Z33 NG104
05 10 17 35 2025 33.5 14.1 4.2 CENTRAL MEDITERRANEAN SEA M71 SG133 T165 D113 MA145 Z153 NG59
05 10 17 33 2025 54.6 -156.8 2.9 SOUTH OF ALASKA M81 SG129 T76 D132 MA115 Z107 NG33
05 10 17 30 2025 -24.3 -67.4 4.0 SALTA, ARGENTINA M164 SG90 T95 D32 MA93 Z93 NG118
05 10 17 02 2025 38.2 -118.5 2.8 NEVADA M111 SG130 T78 D103 MA118 Z109 NG53
05 10 16 43 2025 36.9 -104.8 2.2 NEW MEXICO M118 SG135 T86 D98 MA124 Z116 NG55
05 10 16 24 2025 -6.4 128.1 4.3 BANDA SEA M42 SG57 T57 D115 MA52 Z52 NG92
05 10 15 35 2025 42.9 76.8 4.1 KYRGYZSTAN M26 SG115 T117 D153 MA117 Z119 NG45
05 10 15 07 2025 31.7 -104.2 2.2 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 10 15 02 2025 32.3 -101.0 2.1 WESTERN TEXAS M123 SG133 T87 D93 MA123 Z115 NG60
05 10 13 42 2025 -2.3 139.0 4.3 NEAR N COAST OF PAPUA, INDONES M48 SG61 T49 D117 MA53 Z50 NG87
05 10 13 04 2025 35.5 -84.0 4.1 EASTERN TENNESSEE M122 SG143 T101 D92 MA135 Z128 NG57
05 10 12 36 2025 -23.7 -179.6 4.2 SOUTH OF FIJI ISLANDS M93 SG49 T6 D81 MA35 Z27 NG110
05 10 12 29 2025 20.4 98.2 4.0 MYANMAR M2 SG88 T95 D142 MA88 Z90 NG66
05 10 12 12 2025 -2.6 -79.7 4.7 NEAR COAST OF ECUADOR M160 SG108 T93 D54 MA107 Z104 NG95
05 10 12 04 2025 18.1 -100.2 4.1 GUERRERO, MEXICO M137 SG121 T81 D79 MA113 Z106 NG74
05 10 11 55 2025 50.5 -173.5 3.9 ANDREANOF ISLANDS, ALEUTIAN IS M73 SG120 T70 D137 MA107 Z100 NG36
05 10 11 45 2025 29.7 130.0 4.7 RYUKYU ISLANDS, JAPAN M31 SG93 T73 D150 MA86 Z83 NG56
05 10 11 41 2025 18.9 -65.2 3.6 PUERTO RICO REGION M135 SG133 T113 D75 MA133 Z130 NG75
05 10 11 02 2025 31.7 -104.6 2.2 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 10 10 30 2025 55.0 -157.6 2.8 ALASKA PENINSULA M81 SG129 T76 D132 MA115 Z107 NG33
05 10 10 25 2025 15.9 -94.4 4.0 OFFSHORE OAXACA, MEXICO M141 SG121 T85 D75 MA114 Z108 NG76
05 10 09 36 2025 65.2 -16.3 3.1 ICELAND M79 SG167 T132 D127 MA168 Z162 NG28
05 10 07 56 2025 27.7 -111.7 3.6 GULF OF CALIFORNIA M123 SG124 T76 D91 MA113 Z105 NG63
05 10 07 53 2025 19.1 -64.5 3.9 VIRGIN ISLANDS REGION M134 SG133 T114 D75 MA133 Z130 NG74
05 10 07 19 2025 4.5 95.3 3.9 NORTHERN SUMATRA, INDONESIA M17 SG74 T92 D126 MA76 Z80 NG82
05 10 01 17 2025 52.7 100.5 3.9 BURYATIYA, RUSSIA M30 SG119 T103 D172 MA115 Z114 NG34
May 10, 2025
Notable earthquakes:
The strongest earthquake in the world today was an M 5.3-5.8 in the area of Timor Indonesia.
The full moon will arrive on May 12, 2025 at 16:56 UT. Longitudes which are sub-solar (local solar noon) are near 75 West while those at local solar midnight are near 105 East longitude. In the west these include areas of Central America and the Caribbean and the west coast of South America while in the east these areas include western Indonesia, southeast and central Asia. These areas are most likely to see tidal triggering with this full moon.
The strongest earthquake in the U.S. or Canada today was an M 3.8 in the Near Islands, Aleutians, Alaska. It was not reported felt in this remote area.
An earthquake of M 4.3 in the northern Dominican Republic today was reported by NEIC to have been felt with intensity II in the Dominican Republic at Montellano and Puerto Plata and Santiago.
OHIO:
An earthquake of M 2.9 occurred today in eastern Ohio. NEIC reported it was felt with intensity up to IV in Ohio at Byesville, Caldwell and Pleasant City with III in Cumberland, Lore City, Quaker City, Senecaville, Wellston and Athens and II in Cambridge, Painesville and Canton.
The continues light seismicity in the area since late April, 2025. When this
swarm began this summary noted:
"An earthquake of M 3.1 occurred in eastern Ohio today. NEIC reported it was felt with intensity IV in Ohio at Cumberland, Pleasant City and Sarahsville with III in Byesville, Caldwell, Senecaville, New Paris, Dayton and II in Newark, South Zanesville, Mason.
This is the strongest earthquake in Ohio within about 100 km of today's
epicenter since an M 3.4 on June 3, 2017. At the time this summary noted:
"An unusual earthquake of M 3.5 was widely felt in Ohio, U.S. today. NEIC reported
the event was felt with maximum intensity IV in Ohio at Lewisville, Quaker City, Byesville, and II-III in Senecaville, Salesville, Barnesville, Sarahsville, Caldwell, Cambridge, Cumberland, Norwich, Beverly, Lowell, Marietta, Little Hocking and Warren and in Evans City, Pennyslvania and Louisville, Kentucky and in general within about 50 km of the epicenter.
This is the second earthquake to be felt in Ohio in the past week, An M 3.4 occurred
about 150 km southwest of this on May 24. The last earthquake in Ohio within about
150 km of this epicenter occurred on November 20, 2013 with M 3.5. The only
such earthquake in Ohio in the past 25 years of larger magnitude was an M 3.6
on February 19, 1995 about 250 km southwest of today's epicenter." (June 3, 2017, April 24, 2025)
Today's event in Ohio, like several others in this swarm coincided with a C-class
solar flare (#2090 C2.2), the second strong flare of the day. Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2090 0313 0320 0322 C2.2 (May 9, 2025) 4.0E-04
Ohio, M 2.9 03:13 UT
Hokkaido M 4.5 03:24 UT
Forecast 171816 had expected this earthquake in Ohio within about 50 km was
likely in early May.
O: 09MAY2025 03:13:43 39.9N 81.4W ML=2.9 EMSC Ohio
P: 02MAY2025 171816 40.0N 81.0W 2.0-3.9 BAAAA Ohio/Lake Erie
BANDA SEA, INDONESIA
The strongest earthquake in the world today was an M 5.3-5.8 in the area of
Timor Indonesia. NEIC reported this earthquake of with M 5.3 in Kep Barbar, Indonesia was felt with intensity up to II-III in the area(s) of Darwin Northern Territory, Australia.
This event occurred at the end of solar Flare 2330 of B8.9 and may have been
promoted by SFE from that flare. Data from SWPC for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2330 2230 2238 2243 B8.9 (May 9, 2025) 2.9E-04
Banda Sea M 5.3-5.8 22:45 UT
Forecast 171953 had expected this event within about 100 km was likely in early Mqy, 2025.
O: 09MAY2025 22:45:44 7.2S 129.3E ML=5.8 BMG Timor, Indonesia
O: 09MAY2025 22:45:44 7.1S 129.1E ML=5.3 EMSC Kep. Barbar, Indonesia
P: 04MAY2025 171953 7.0N 128.0W 4.0-5.4 BAAAA Banda Sea
NEIC reported an earthquake of M 2.8 in Oklahoma was felt with intensity up to II-III in the area(s) of Oklahoma in Tulsa, Meeker, Prague and Seiminole and II in Yukon, Earlsboro and Paden.
NEIC reported an earthquake of M 4.7 in Vanuatu was felt with intensity up to II-III in the area(s) of Vanuatu at Vila Shefa with IV.
NEIC reported an earthquake of M 5.1 in northern Vanuatu may have been felt with intensity up to II-III in the area(s) of northern Vanuatu in Vila Shefa with IV.
EMSC reported an earthquake of M 4.5 in Hindu Kush, Afghanistan was felt with intensity up to IV in the area(s) of Hindu Kush, Afghanistan in Khwazakhela and Peshawar, Kohat, Hafiz Bagh, Srinagar, Buchpora, Pakistan, and Kabul, Afghanistan.
EMSC reported an earthquake of M 4.4 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar in Thazi, Mandalay.
No Tropical Cyclones are currently active.
A tropical cyclone may be forming south of Papua New Guinea. This system is currently
located at 8S 137E and tracking to the south with winds up to 33 kts. Some enhanced seismicity in New Guinea is possible as this storm is in the region. The antipode is at 8N 43W in the Central Mid-Atlantic Ridge where a moderate earthquake occurred yesterday, an event that may have been promoted by energy from this storm.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2060 0252 0304 0313 C1.9 (May 9, 2025) 6.2E-04
2090 0313 0320 0322 C2.2 (May 9, 2025) 4.0E-04
Ohio, M 2.9 03:13 UT
Hokkaido M 4.5 03:24 UT
2070 0422 0430 0432 C1.8 (May 9, 2025) 7.7E-04
Honshu M 4.6 04:34 UT
South Island, New Zealand M 4.0 04:44 UT
2110 0613 0619 0623 C1.0 (May 9, 2025) 6.3E-04
Sakhalin M 4.4 06:15 UT
2150 0709 0716 0718 C1.4 (May 9, 2025) 5.9E-04
2160 0814 0828 0841 C1.6 (May 9, 2025) 2.3E-03
Myanmar M 4.4 08:37 UT
2190 1114 1121 1125 C4.9 (May 9, 2025) 1.9E-03
2330 2230 2238 2243 B8.9 (May 9, 2025) 2.9E-04
Banda Sea M 5.3-5.8 22:45 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 10-11 unsettled May 12. Solar M-flare chance: 40% X-class: 5% proton storm: 5%
The current geomagnetic storm continued today reaching a peak at high latitude
with kp 7 around 08:30 UT.
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 15 24 11 15:00 5 77 136
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the North and South Geomagnetic poles due to the geomagnetic
storm today.
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 10 10 25 2025 15.9 -94.4 4.0 OFFSHORE OAXACA, MEXICO M141 SG121 T85 D75 MA114 Z108 NG76
05 10 09 36 2025 65.2 -16.3 3.1 ICELAND M79 SG167 T132 D127 MA168 Z162 NG28
05 10 08 19 2025 21.2 121.8 3.0 TAIWAN REGION M24 SG85 T75 D143 MA80 Z79 NG64
05 10 07 56 2025 27.7 -111.7 3.6 GULF OF CALIFORNIA M123 SG124 T76 D91 MA113 Z105 NG63
05 10 07 53 2025 19.1 -64.5 3.9 VIRGIN ISLANDS REGION M134 SG133 T114 D75 MA133 Z130 NG74
05 10 06 41 2025 -5.5 150.9 4.4 NEW BRITAIN REGION, P.N.G. M60 SG59 T37 D110 MA48 Z44 NG91
05 10 05 08 2025 36.7 71.2 4.6 HINDU KUSH REGION, AFGHANISTAN M25 SG112 T121 D146 MA115 Z118 NG51
05 10 05 07 2025 -20.7 -68.9 4.0 TARAPACA, CHILE M165 SG93 T96 D36 MA96 Z96 NG114
05 10 04 49 2025 14.5 -94.2 4.1 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 NG78
05 10 04 35 2025 52.2 160.9 4.3 OFF EAST COAST OF KAMCHATKA M57 SG117 T75 D151 MA106 Z100 NG33
05 10 04 18 2025 52.1 160.7 4.2 OFF EAST COAST OF KAMCHATKA M57 SG117 T75 D151 MA106 Z99 NG34
05 10 03 43 2025 19.1 -66.5 3.0 PUERTO RICO REGION M135 SG132 T112 D75 MA132 Z129 NG74
05 10 03 34 2025 -16.1 -74.7 5.1 NEAR COAST OF SOUTHERN PERU M169 SG97 T92 D40 MA98 Z96 NG109
05 10 03 34 2025 -7.1 124.9 4.1 BANDA SEA M40 SG57 T60 D115 MA52 Z53 NG92
05 10 03 10 2025 35.5 -96.7 3.0 OKLAHOMA M121 SG137 T91 D95 MA128 Z120 NG57
05 10 02 34 2025 51.6 -175.9 3.4 ANDREANOF ISLANDS, ALEUTIAN IS M71 SG121 T71 D139 MA108 Z100 NG35
05 10 02 11 2025 -24.1 -67.5 4.0 SALTA, ARGENTINA M164 SG90 T95 D32 MA93 Z94 NG117
05 10 01 37 2025 50.1 178.4 3.2 RAT ISLANDS, ALEUTIAN ISLANDS M68 SG118 T70 D141 MA105 Z98 NG36
05 10 01 17 2025 52.7 100.5 3.9 BURYATIYA, RUSSIA M30 SG119 T103 D172 MA115 Z114 NG34
05 10 01 06 2025 -20.8 -177.9 4.5 FIJI REGION M94 SG53 T3 D83 MA39 Z30 NG107
05 10 00 39 2025 -20.0 -178.2 4.9 FIJI REGION M93 SG53 T4 D83 MA39 Z31 NG106
05 9 22 53 2025 34.7 -118.8 2.1 SOUTHERN CALIFORNIA M114 SG127 T75 D100 MA115 Z106 NG56
05 9 22 45 2025 -7.1 129.1 5.8 KEPULAUAN BABAR, INDONESIA M43 SG56 T56 D114 MA51 Z51 NG92
05 9 22 45 2025 -7.1 129.1 5.3 KEPULAUAN BABAR, INDONESIA M43 SG56 T56 D114 MA51 Z51 NG92
05 9 22 35 2025 31.2 -115.3 3.1 BAJA CALIFORNIA, MEXICO M119 SG126 T76 D96 MA114 Z106 NG60
05 9 21 48 2025 -41.9 85.0 4.6 SOUTHEAST INDIAN RIDGE M64 SG36 T84 D79 MA46 Z54 NG129
05 9 21 44 2025 34.0 -119.0 2.1 CHANNEL ISLANDS REG., CALIFORN M115 SG126 T75 D100 MA114 Z106 NG57
05 9 21 27 2025 23.8 120.7 4.3 TAIWAN M22 SG88 T77 D146 MA83 Z81 NG62
05 9 20 58 2025 9.3 126.9 4.1 MINDANAO, PHILIPPINES M32 SG73 T65 D131 MA67 Z66 NG76
05 9 19 54 2025 41.9 -119.6 2.4 NEVADA M108 SG133 T79 D107 MA120 Z111 NG49
05 9 19 53 2025 17.0 -100.9 4.1 OFFSHORE GUERRERO, MEXICO M137 SG119 T80 D78 MA111 Z105 NG75
05 9 19 37 2025 37.5 -118.9 2.4 CENTRAL CALIFORNIA M112 SG129 T77 D103 MA117 Z108 NG53
05 9 19 07 2025 -33.1 -178.7 5.0 SOUTH OF KERMADEC ISLANDS M98 SG41 T13 D73 MA28 Z19 NG119
05 9 18 11 2025 -27.8 -71.1 4.0 ATACAMA, CHILE M166 SG86 T91 D29 MA89 Z89 NG121
05 9 17 49 2025 40.4 -125.2 2.4 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 NG50
05 9 17 44 2025 53.3 159.0 4.9 NEAR EAST COAST OF KAMCHATKA M56 SG118 T76 D153 MA107 Z101 NG32
05 9 17 35 2025 38.1 -122.1 2.2 SAN FRANCISCO BAY AREA, CALIF. M110 SG128 T75 D104 MA116 Z107 NG52
05 9 16 49 2025 -17.7 168.4 4.7 VANUATU M81 SG51 T16 D92 MA37 Z30 NG103
05 9 16 26 2025 18.8 145.8 4.3 PAGAN REG., N. MARIANA ISLANDS M46 SG82 T55 D134 MA73 Z68 NG67
05 9 16 11 2025 31.6 -104.2 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 9 16 04 2025 34.5 -119.5 2.3 SOUTHERN CALIFORNIA M114 SG127 T75 D100 MA114 Z106 NG56
05 9 15 50 2025 -8.2 -74.4 4.0 CENTRAL PERU M163 SG104 T95 D48 MA105 Z103 NG101
05 9 15 33 2025 32.1 -101.1 2.5 WESTERN TEXAS M123 SG133 T86 D92 MA123 Z115 NG60
05 9 15 17 2025 -12.4 166.8 5.1 SANTA CRUZ ISLANDS M77 SG55 T20 D97 MA42 Z35 NG98
05 9 14 44 2025 63.2 -150.2 3.4 CENTRAL ALASKA M80 SG138 T85 D135 MA124 Z116 NG25
05 9 13 41 2025 34.0 -117.6 2.2 GREATER LOS ANGELES AREA, CALI M115 SG127 T76 D99 MA115 Z106 NG57
05 9 13 37 2025 24.8 95.3 4.3 MYANMAR M2 SG93 T98 D145 MA93 Z95 NG62
05 9 13 31 2025 -20.9 -65.3 4.4 CHUQUISACA, BOLIVIA M162 SG94 T99 D35 MA97 Z97 NG114
05 9 13 17 2025 54.7 164.5 4.4 KOMANDORSKIYE OSTROVA REGION M60 SG120 T76 D150 MA108 Z102 NG31
05 9 13 14 2025 -4.3 123.4 4.7 BANDA SEA M37 SG59 T62 D118 MA55 Z56 NG90
05 9 12 37 2025 -13.3 167.9 4.3 VANUATU M78 SG55 T18 D96 MA42 Z34 NG99
05 9 12 14 2025 31.7 -104.5 2.6 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 9 12 02 2025 50.9 173.8 3.8 SOUTH OF ALEUTIAN ISLANDS M65 SG118 T71 D144 MA105 Z98 NG35
05 9 11 56 2025 35.6 -117.5 2.3 SOUTHERN CALIFORNIA M114 SG128 T77 D101 MA116 Z108 NG55
05 9 10 40 2025 13.6 124.8 4.5 CATANDUANES, PHILIPPINES M28 SG77 T69 D135 MA72 Z71 NG72
05 9 10 18 2025 20.0 -70.6 4.3 DOMINICAN REPUBLIC REGION M136 SG132 T108 D76 MA131 Z127 NG73
05 9 10 06 2025 27.7 -111.7 3.5 GULF OF CALIFORNIA M123 SG124 T76 D91 MA113 Z105 NG63
05 9 10 05 2025 37.5 72.2 4.0 TAJIKISTAN M25 SG112 T120 D147 MA115 Z118 NG51
05 9 09 50 2025 -53.2 140.1 4.6 WEST OF MACQUARIE ISLAND M84 SG10 T48 D67 MA8 Z16 NG138
05 9 09 29 2025 32.1 -101.1 2.0 WESTERN TEXAS M123 SG133 T86 D92 MA123 Z115 NG60
05 9 08 37 2025 20.9 96.0 4.4 MYANMAR M1 SG89 T97 D142 MA90 Z92 NG66
05 9 03 13 2025 39.9 -81.5 2.9 OHIO M118 SG147 T104 D96 MA140 Z132 NG53
May 9, 2025
Notable earthquakes:
Mongolia M 4.2 event occurred near the antipode of the M 7.4 in Drake Passage of May 2, 2025 - largest in half a year in the antipodal area.
Occurred during C7 Solar flare.
Macquarie Island M 5.6 near sixth node from Drake Passage (60 degrees)
Southeast of Easter Island M 5.4 at exactly 120.0 degrees (node 3) from Myanmar
MONGOLIA:
An earthquake of M 4.5 was felt in Mongolia today. EMSC reported moderate shaking
in Ulan Bator, Mongolia. This is the strongest earthquake within about 500 km
of this epicenter in the past six months. This is near the antipode of the M 7.4 in
the Drake Passage of May 2 and may have been promoted by energy from that source.
It occurred at the tail end of solar flare
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1930 1348 1356 1359 C6.4 (May 8, 2025) 2.5E-03
Carlsberg Ridge M 4.7 13:50 UT
Eastern Mongolia M 4.5 14:23 UT
O: 07MAY2025 14:23:19 48.8N 109.1E ML=4.5 EMSC Mongolia
P: 02MAY2025 171816 45.0N 102.0E 4.0-5.4 BCCAA Gulf of California
An earthquake of M 2.9 occurred today in eastern Ohio. NEIC reported it was felt with intensity up to IV in Ohio at Byesville, Caldwell and Pleasant City with III in Cumberland, Lore City, Quaker City, Senecaville, Wellston and Athens and II in Cambridge, Painesville and Canton.
The continues light seismicity in the area since early May 2025.
O: 09MAY2025 03:13:43 39.9N 81.4W ML=2.9 EMSC Ohio
P: 02MAY2025 171816 40.0N 81.0W 2.0-3.9 BAAAA Ohio/Lake Erie
NEIC reported an earthquake of M 2.6 in the Geysers of California was felt with intensity up to II-III in the area(s) of the Geysers of California with III in Pleasant Hill and II in Roseville and Marysville.
NEIC reported an earthquake of M 3.6 off the coast of Northern California was felt with intensity up to II-III in the area(s) of Northern California with III in Arcata and II in McKinleyville.
NEIC reported an earthquake of M 3.2 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas at Westbrook.
NEIC reported an earthquake of M 3.1 in Kenai, Alaska was felt with intensity up to II-III in the area(s) of with III in Eagle River and II in Fort Richardson.
NEIC reported an earthquake of M 2.9 in San Francisco, California was felt with intensity up to II-III in the area(s) of San Francisco, California with III in Burlingame, Fremont, Hayward, Newark, Pleasanton, Union City, and II in Mountain View, San Francisco, Alameda, Danville, Castro Valley, Livermore, Pleasanton, Oakland and Chico.
NEIC reported an earthquake of M 5.4 in Ecuador/Peru was felt with intensity up to II-III in the area(s) of Ecuador/Peru at Papayal, Tumbes, Peru (VI), and III in Ecuador at Loja, Pinas, El Oro and Cuenca Azuay and in Lambayeque, Peru.
EMSC reported moderate shaking in Guayaquil, Ecuador.
NEIC reported an earthquake of M 4.8 in Vanuatu was felt with intensity up to II-III in the area(s) of Vanuatu at Vila Shefa.
EMSC reported moderate shaking in Efate, Vanuatu.
NEIC reported an earthquake of M 2.7 in Northern California was felt with intensity up to II-III in the area(s) of Northern California in Norden and II in Glenbrook, Nevada.
NEIC reported an earthquake of M 3.0 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas at Lubbock and Midland.
NEIC reported an earthquake of M 4.9 in the Solomon Islands was felt with intensity up to II-III in the area(s) of the Solomon Islands at Honiara Guadalcanal.
NEIC reported an earthquake of M 2.6 in Los Angeles, California was felt with intensity up to II-III in the area(s) of Los Angeles, California at Eastvale.
GeoNet reported the following parameters for an event in South Island, New Zealand today.
O: 09MAY2025 04:44:15 42.8S 171.4E MS=4.2 GEONET Felt with moderate intensity in the area northeast of Arthur's Pass, South Island, New Zealand. 69 reports of light to moderate intensity came from the area of southern North Island and Wellington and northern South Island, New Zealand with 52 reporting weak, 14 light and 3 moderate shaking.
EMSC reported an earthquake of M 4.2 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar at Mandalay, Mahaaungmye and Aungmyaythazan.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1780 0156 0203 0212 C3.3 (May 8, 2025) 6.4E-04
1810 0326 0333 0337 C3.9 (May 8, 2025) 9.6E-04
Antofagasta M 4.4 03:41 UT
1840 0636 0643 0647 C2.2 (May 8, 2025) 9.4E-04
1850 0654 0717 0735 C3.6 (May 8, 2025) 7.3E-03
Chiapas M 4.0 07:12 UT
1890 0935 0942 0944 C1.5 (May 8, 2025) 8.3E-04
1900 1016 1024 1027 C1.6 (May 8, 2025) 1.0E-03
1910 1128 1141 1147 C7.0 (May 8, 2025) 4.9E-03
1930 1348 1356 1359 C6.4 (May 8, 2025) 2.5E-03
Carlsberg Ridg M 4.7 13:50 UT
Eastern Mongolia M 4.5 14:23 UT
1940 1454 1500 1523 C7.0 (May 8, 2025) 9.8E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms May 9 active May 10-11. Solar M-flare chance: 40% X-class: 5% proton storm: 5%
The current geomagnetic storm continued today reaching a peak at high latitude
with kp 7 around 08:30 UT.
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 12 30 11 18:00 6 84 149
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the North and South Geomagnetic poles due to the geomagnetic
storm today.
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 9 08 37 2025 20.9 96.0 4.4 MYANMAR M1 SG89 T97 D142 MA90 Z92 NG66
05 9 06 01 2025 38.8 -122.8 2.6 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 9 03 30 2025 36.2 -89.4 2.1 TENNESSEE M121 SG141 T97 D94 MA132 Z125 NG56
05 9 03 13 2025 39.9 -81.5 2.9 OHIO M118 SG147 T104 D96 MA140 Z132 NG53
05 9 02 22 2025 15.3 -94.6 4.0 OFF COAST OF OAXACA, MEXICO M141 SG120 T85 D75 MA114 Z108 NG77
05 9 01 52 2025 -18.9 65.6 4.7 MAURITIUS - REUNION REGION M50 SG64 T109 D95 MA74 Z82 NG107
05 9 01 41 2025 34.6 93.1 4.1 SOUTHERN QINGHAI, CHINA M12 SG103 T103 D154 MA103 Z104 NG52
05 9 00 48 2025 18.1 96.8 4.2 MYANMAR M3 SG86 T95 D139 MA87 Z89 NG68
05 8 23 06 2025 40.3 -111.4 2.3 UTAH M113 SG135 T83 D103 MA123 Z114 NG51
05 8 22 50 2025 17.4 -102.6 3.9 OFFSHORE MICHOACAN, MEXICO M136 SG119 T79 D79 MA111 Z104 NG74
05 8 22 18 2025 13.8 -92.1 4.3 OFFSHORE GUATEMALA M143 SG120 T87 D73 MA114 Z108 NG79
05 8 22 09 2025 36.5 -115.0 2.0 NEVADA M114 SG130 T79 D101 MA118 Z110 NG54
05 8 21 56 2025 62.8 -149.6 3.4 CENTRAL ALASKA M81 SG138 T85 D134 MA124 Z116 NG26
05 8 20 52 2025 35.3 71.2 4.3 HINDU KUSH REGION, AFGHANISTAN M25 SG110 T121 D145 MA114 Z117 NG53
05 8 19 42 2025 44.1 147.3 4.0 KURIL ISLANDS M47 SG107 T73 D154 MA98 Z93 NG41
05 8 19 29 2025 60.8 -150.3 3.0 KENAI PENINSULA, ALASKA M81 SG136 T83 D133 MA122 Z114 NG28
05 8 19 08 2025 55.0 -156.4 3.0 SOUTH OF ALASKA M81 SG129 T76 D132 MA115 Z107 NG33
05 8 18 47 2025 31.4 -115.6 3.2 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 8 18 29 2025 32.3 -103.2 3.1 NEW MEXICO M123 SG132 T85 D93 MA122 Z114 NG59
05 8 17 26 2025 12.8 -88.6 4.1 OFFSHORE EL SALVADOR M145 SG120 T90 D71 MA115 Z110 NG80
05 8 16 44 2025 51.8 -174.9 3.9 ANDREANOF ISLANDS, ALEUTIAN IS M72 SG121 T71 D138 MA108 Z101 NG35
05 8 16 15 2025 13.6 120.1 4.2 MINDORO, PHILIPPINES M24 SG78 T73 D136 MA73 Z73 NG72
05 8 15 45 2025 37.6 -122.0 2.2 SAN FRANCISCO BAY AREA, CALIF. M110 SG128 T75 D104 MA115 Z107 NG53
05 8 15 17 2025 37.6 -122.0 2.8 SAN FRANCISCO BAY AREA, CALIF. M110 SG128 T75 D104 MA115 Z107 NG53
05 8 15 07 2025 33.2 -116.7 2.1 SOUTHERN CALIFORNIA M116 SG127 T76 D98 MA115 Z106 NG58
05 8 14 48 2025 33.2 -116.7 2.2 SOUTHERN CALIFORNIA M116 SG127 T76 D98 MA115 Z106 NG58
05 8 14 38 2025 -4.2 128.8 4.0 BANDA SEA M41 SG59 T57 D117 MA54 Z53 NG89
05 8 14 26 2025 -56.8 -68.4 4.3 DRAKE PASSAGE M143 SG58 T81 D0 MA63 Z66 NG150
05 8 13 59 2025 19.2 -67.6 3.3 PUERTO RICO REGION M135 SG132 T111 D75 MA132 Z128 NG74
05 8 13 14 2025 19.2 -66.4 3.0 PUERTO RICO REGION M135 SG133 T112 D75 MA132 Z129 NG74
05 8 12 15 2025 -2.7 139.4 4.1 NEAR N COAST OF PAPUA, INDONES M49 SG61 T48 D116 MA52 Z50 NG88
05 8 10 53 2025 -17.7 168.0 4.8 VANUATU M80 SG51 T17 D92 MA37 Z30 NG103
05 8 09 58 2025 31.0 -115.0 3.0 BAJA CALIFORNIA, MEXICO M119 SG126 T76 D96 MA114 Z106 NG60
05 8 09 15 2025 35.2 57.2 4.0 NORTHEASTERN IRAN M36 SG115 T132 D137 MA121 Z126 NG54
05 8 08 27 2025 -4.6 127.1 4.4 BANDA SEA M40 SG59 T59 D117 MA54 Z54 NG90
05 8 08 16 2025 -19.6 -173.0 4.9 TONGA REGION M98 SG56 T1 D81 MA42 Z33 NG106
05 8 07 38 2025 21.6 96.2 4.1 MYANMAR M0 SG90 T97 D142 MA90 Z92 NG65
05 8 07 27 2025 39.3 -120.4 2.4 NORTHERN CALIFORNIA M110 SG130 T77 D105 MA117 Z109 NG51
May 8, 2025
Notable earthquakes:
West of northern Baja California, Mexico - an M 4.1 was the strongest quake within about 200 km of this epicenter in at least 35 years.
Off coast of northern California an earthquake of M 3.9, felt in No. California
WEST OF BAJA CALIFORNIA
A highly unusual earthquake of M 4.1 was recorded today in the area west of the northern Baja California region of Mexico.
It was not reported felt in this remote area WSW of El Vergel, Mexico. The last
earthquake within about 150 km of this epicenter with equal or larger magnitude
occurred more than 35 years ago. An M 5.2 occurred about 150 km southeast of
today's epicenter on August 30, 2004. At the time this summary noted:
"An earthquake of M 5.2 occurred offshore of the Northern Baja California
of Mexico on August 30. This is the largest earthquake located in this area
(27-32N 114-118W) since an event of M 5.2 which occurred on May 22, 1992 in the
same general region. The last events which were probably larger than this
in the region occurred in Dec. 1976 with M 5.7, but far to the east. This may
be the strongest event within 100 km since Sept. 13, 1975 when an M 5.4
was recorded in the general area." (August 30, 2004)
Rare events such as this can indicate an area under considerable strain and near
a larger regional earthquake. Two earthquakes of M>=6 have occurred in the
past 35 years in this general area west of northern Baja. These occurred about 250
km northwest of today's epicenter on December 14, 2012 and more recently as an M 6.2
on November 22, 2022. This event has been followed by a strong series of aftershocks
which still continues at a lesser frequency. The event of December 14, 2012
was described in this summary at the time as:
"The only moderate earthquake to hit this area in the past 22 years was an M 5.0 on July 9, 1998. As the
earthquake occurred near the time of maximum astronomical tides, tidal triggering
of this earthquake is a distinct possibility. No earthquakes of this size
have previously been identified in this region off the coast of California.
the closest may have been an M 6.0 on September 4, 1981 of M 6.0 or an M 7.0
on December 21, 1812. In the earthquake of September 4, 1981 some windows were broken and alarms
and telephone service was interrupted. Today's event is further off the coast
than that of 1981 and could be expected to do even less damage. This may not
be the end of the seismicity for California however, as large earthquakes
in the region often cluster in time." (December 14, 2012)
and
"The strong earthquake of M 6.3-6.4 off the coast of Southern and Baja California
today apparently triggered a second strong earthquake in the Near Islands,
Aleutians, Alaska early on December 15. It is not immediately obvious that
the earthquake in the Aleutians at the westernmost edge of the United States
was triggered from effects from California but the distance between these
two events 51.5 degrees is a giveaway. This is precisely the seventh node -
(360/7 = 51.43 degrees). As this is a distance at which ground motion from
large earthquakes is enhanced, it is highly likely that there is a triggering
relation between the two." (December 15, 2012)
This epicenter is at the third node (120 degrees) from the M 7.7 in Myanmar of
March 28 and 103 degrees from the M 6.8 in New Zealand of March 25. It is also at the
sixth node from the North Geomagnetic Pole and may have been promoted by
energy from these sources. The earthquake occurred near local solar noon.
Forecast 172002 had expected regional seismic enhancement around May 6.
O: 07MAY2025 21:42:00 29.6N 118.1W ML=4.1 ANSS W. of Northern Baja California, Mexico
P: 06MAY2025 172002 28.0N 112.0W 3.5-5.0 ABDAA Gulf of California
OFF COAST OF NORTHERN CALIFORNIA
An earthquake of M 3.9 was reported off the coast of northern California today. NEIC reported it was felt with intensity IV in Northern California at Fortuna; III in Whitethorn, and II in Eureka, Ferndale, Hydesville and Loleta, California.
The last earthquake within about 150 km of this epicenter with M>=3.9
occurred as an M 4.2 on April 24, 2025 and prior to that a major quake shook
the area on December 5, 2024 with M 7.0-7.1. Today's event may be an aftershock
of that. At the time this summary noted:
"A major earthquake of M 7.0-7.3 occurred on December 5, 2024 near local noon off the coast of Northern California." (December 5, 2024)
Like the event in December, 2024 today's earthquake also occurred within minutes
of local solar noon and may have been promoted by tidal and/or geomagnetic
effects which maximize near this hour.
This epicenter is at 107 degrees from recent strong earthquakes in Myanmar, Drake Passage
and New Zealand and at the seventh node (51 degrees) from the North Geomagnetic pole and
may have been promoted by energy from these sources.
Forecast 172102 had expected this event was likely around May 9, 2025.
O: 07MAY2025 20:50:49 40.4N 125.0W ML=3.9 ANSS Off coast of Northern California, Mexico
P: 09MAY2025 172102 40.5N 125.8W 2.5-4.5 AAAAA Off coast of No. California
NEIC reported an earthquake of M 3.0 in Malibu, California was felt with intensity up to II-III in the area(s) of Malibu, California with III in Los Angeles.
NEIC reported an earthquake of M 2.7 in Northern California was felt with intensity up to II-III in the area(s) of Northern California in Magalia.
NEIC reported an earthquake of M 4.5 in Tanzania was felt with intensity up to II-III in the area(s) of Tanzania with III in Machakos, Kenya and II in Arusha, Tanzania and II in Kenya at Nairobi and Kiambu.
EMSC reported moderate shaking in Starehe, Kenya. Kenya government reports indicated this quake was widely felt in the area of Nairobi.
NEIC reported an earthquake of M 4.4 in northern Chile was felt with intensity up to II-III in the area(s) of northern Chile with III in Iquique, Tarapaca.
NEIC reported an earthquake of M 5.4 in Ecuador/Peru was felt with intensity up to II-III in the area(s) of Ecuador/Peru at Loja, Ecuador.
NEIC reported an earthquake of M 4.8 in Vanuatu was felt with intensity up to II-III in the area(s) of Vanuatu at Vila Shefa.
NEIC reported an earthquake of M 2.7 in Northern California was felt with intensity up to II-III in the area(s) of Northern California in Norden and II in Glenbrook, Nevada.
NEIC reported an earthquake of M 3.0 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas at Lubbock and Midland.
NEIC reported an earthquake of M 4.9 in the Solomon Islands was felt with intensity up to II-III in the area(s) of the Solomon Islands at Honiara Guadalcanal.
PHIVOLCS reported an earthquake of M 4.9 in Samar, Philippines was felt with intensity up to IV in the area(s) of Samar, Philippines with II in Northern Samar at Mapanas, Gamay, Lapinig, Laoang and Palapag.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1390 0147 0150 0155 C1.6 (May 7, 2025) 8.1E-04
1400 0212 0216 0219 C1.5 (May 7, 2025) 4.6E-04
Kyushu M 4.6 02:15 UT
1410 0244 0252 0259 C4.0 (May 7, 2025) 2.6E-03
1440 0500 0510 0514 C2.9 (May 7, 2025) 1.7E-03
1470 0647 0653 0656 C1.2 (May 7, 2025) 6.9E-04
1490 0710 0714 0725 C1.2 (May 7, 2025) 1.1E-03
Nias, Indonesia M 5.3 07:09 UT
Papua, Indonesia M 4.0 07:22 UT
Tanzania M 4.5 07:35 UT
1500 0951 1001 1010 C1.7 (May 7, 2025) 3.6E-04
1510 1021 1027 1031 C1.1 (May 7, 2025) 6.5E-04
1530 1200 1208 1215 C1.7 (May 7, 2025) 5.7E-04
1540 1223 1228 1233 C2.4 (May 7, 2025) 1.3E-03
1660 1623 1631 1638 C1.4 (May 7, 2025) 6.8E-04
Los Angeles, CA M 2.9 16:33 UT
1680 1742 1751 1757 C2.7 (May 7, 2025) 1.9E-03
Biak, Indonesia M 4.9 17:49 UT
1700 1855 1904 1908 C3.2 (May 7, 2025) 1.7E-03
Mid-Indian Ridge M 4.9 18:51 UT
1720 1953 2009 2029 C1.6 (May 7, 2025) 3.3E-03
1750 2320 2326 2331 C1.9 (May 7, 2025) 1.3E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: unsettled May 8 minor storms May 9 active May 10. Solar M-flare chance: 45% X-class: 5% proton storm: 5%
The current geomagnetic storm continued today reaching a peak at high latitude
with kp 7 around 08:30 UT.
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 16 8 08:00 5 84 154
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the North and South Geomagnetic poles due to the geomagnetic
storm today.
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 8 10 53 2025 -17.7 167.9 4.9 VANUATU M80 SG51 T17 D92 MA37 Z30 NG103
05 8 10 23 2025 40.2 -124.6 2.7 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 8 09 33 2025 -8.1 128.7 4.2 TIMOR SEA M43 SG55 T56 D113 MA50 Z50 NG93
05 8 09 15 2025 35.2 57.2 4.0 NORTHEASTERN IRAN M36 SG115 T132 D137 MA121 Z126 NG54
05 8 08 58 2025 -35.0 -103.7 5.1 SOUTHEAST OF EASTER ISLAND M158 SG71 T62 D32 MA68 Z65 NG126
05 8 08 27 2025 -4.6 127.2 4.2 BANDA SEA M40 SG59 T59 D117 MA54 Z54 NG90
05 8 08 17 2025 19.9 -73.5 3.0 HAITI REGION M137 SG132 T106 D76 MA129 Z125 NG73
05 8 08 16 2025 -19.5 -173.2 4.9 TONGA M97 SG56 T1 D81 MA42 Z33 NG106
05 8 07 53 2025 35.2 57.2 4.3 NORTHEASTERN IRAN M36 SG115 T132 D137 MA121 Z126 NG54
05 8 07 38 2025 21.6 96.2 4.1 MYANMAR M0 SG90 T97 D142 MA90 Z92 NG65
05 8 07 36 2025 -57.2 -67.1 4.7 DRAKE PASSAGE M142 SG58 T81 D0 MA63 Z66 NG150
05 8 07 27 2025 39.3 -120.4 2.5 NORTHERN CALIFORNIA M110 SG130 T77 D105 MA117 Z109 NG51
05 8 07 12 2025 15.0 -93.7 4.0 OFFSHORE CHIAPAS, MEXICO M142 SG120 T86 D74 MA114 Z108 NG77
05 8 06 43 2025 35.4 -117.8 2.1 SOUTHERN CALIFORNIA M114 SG128 T76 D100 MA116 Z107 NG55
05 8 06 06 2025 64.8 -21.9 3.6 ICELAND M81 SG169 T131 D126 MA169 Z162 NG29
05 8 05 23 2025 35.7 57.1 4.5 NORTHEASTERN IRAN M36 SG116 T132 D138 MA122 Z126 NG54
05 8 04 57 2025 38.0 -119.0 2.0 CENTRAL CALIFORNIA M111 SG130 T77 D103 MA117 Z109 NG53
05 8 04 51 2025 33.3 -116.3 2.3 SOUTHERN CALIFORNIA M117 SG127 T76 D98 MA115 Z107 NG58
05 8 04 42 2025 14.3 -61.1 4.0 MARTINIQUE REGION, WINDWARD IS M137 SG129 T115 D71 MA131 Z129 NG79
05 8 03 41 2025 -23.2 -69.3 4.4 ANTOFAGASTA, CHILE M166 SG91 T94 D33 MA94 Z93 NG116
05 8 03 16 2025 -60.6 -26.7 4.6 SOUTH SANDWICH ISLANDS REGION M124 SG55 T95 D21 MA65 Z71 NG154
05 8 03 12 2025 13.9 -92.5 4.0 OFFSHORE GUATEMALA M143 SG120 T86 D73 MA114 Z108 NG78
05 8 02 55 2025 39.1 70.7 4.7 TAJIKISTAN M27 SG114 T121 D147 MA117 Z120 NG49
05 8 00 37 2025 32.3 -101.2 3.0 WESTERN TEXAS M123 SG133 T86 D93 MA123 Z115 NG60
05 8 00 36 2025 -57.0 -67.1 4.8 DRAKE PASSAGE M142 SG58 T81 D0 MA63 Z66 NG150
05 8 00 25 2025 52.8 159.5 4.5 OFF EAST COAST OF KAMCHATKA M56 SG117 T76 D152 MA106 Z100 NG33
05 8 00 16 2025 52.8 159.1 4.7 OFF EAST COAST OF KAMCHATKA M56 SG117 T76 D152 MA106 Z100 NG33
05 8 00 00 2025 -31.1 -72.9 4.1 OFF COAST OF COQUIMBO, CHILE M166 SG82 T88 D25 MA85 Z85 NG124
05 7 23 38 2025 48.0 -123.1 2.1 OLYMPIC PENINSULA, WASHINGTON M102 SG136 T81 D113 MA122 Z114 NG42
05 7 23 11 2025 -22.6 69.3 5.0 MID-INDIAN RIDGE M51 SG59 T105 D93 MA69 Z77 NG110
05 7 23 09 2025 -9.3 159.2 4.9 SOLOMON ISLANDS M69 SG57 T28 D103 MA44 Z39 NG95
05 7 23 04 2025 -19.3 -67.9 4.5 ORURO, BOLIVIA M164 SG95 T97 D37 MA98 Z97 NG113
05 7 22 37 2025 28.0 -112.2 3.3 GULF OF CALIFORNIA M123 SG124 T76 D92 MA113 Z105 NG63
05 7 22 34 2025 -20.8 -178.3 4.5 FIJI REGION M93 SG53 T4 D83 MA39 Z30 NG107
05 7 22 33 2025 28.0 -112.2 3.3 GULF OF CALIFORNIA M123 SG124 T76 D92 MA113 Z105 NG63
05 7 22 16 2025 28.0 -112.2 3.4 GULF OF CALIFORNIA M123 SG124 T76 D92 MA113 Z105 NG63
05 7 21 42 2025 29.6 -118.1 4.0 OFF W. COAST OF BAJA CALIFORNI M119 SG123 T73 D95 MA111 Z103 NG61
05 7 20 50 2025 40.4 -125.0 3.9 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 NG50
05 7 20 50 2025 40.4 -125.0 3.6 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 NG50
05 7 19 04 2025 32.3 -102.2 2.2 WESTERN TEXAS M123 SG132 T86 D93 MA122 Z115 NG60
05 7 18 51 2025 -34.8 78.7 4.9 MID-INDIAN RIDGE M58 SG44 T92 D84 MA54 Z62 NG122
05 7 18 47 2025 -57.3 -67.8 4.5 DRAKE PASSAGE M142 SG57 T81 D0 MA63 Z66 NG150
05 7 17 49 2025 -1.8 136.3 4.9 BIAK REGION, INDONESIA M45 SG61 T51 D118 MA54 Z52 NG87
05 7 17 28 2025 31.7 -104.5 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 7 17 09 2025 80.4 0.8 4.5 NORTH OF SVALBARD M69 SG159 T119 D142 MA152 Z147 NG13
05 7 17 02 2025 41.9 -119.6 2.1 NEVADA M108 SG133 T79 D107 MA120 Z111 NG49
05 7 16 51 2025 35.3 -117.8 2.3 SOUTHERN CALIFORNIA M114 SG128 T76 D100 MA116 Z107 NG55
05 7 16 33 2025 34.0 -118.7 2.9 SANTA MONICA BAY, CALIFORNIA M115 SG126 T75 D100 MA114 Z106 NG57
05 7 16 19 2025 33.5 -116.7 2.2 SOUTHERN CALIFORNIA M116 SG127 T76 D98 MA115 Z107 NG57
05 7 16 18 2025 -38.9 142.7 2.8 NEAR S.E. COAST OF AUSTRALIA M74 SG25 T41 D81 MA17 Z18 NG124
05 7 16 18 2025 31.4 -103.9 2.1 WESTERN TEXAS M123 SG131 T84 D92 MA121 Z113 NG60
05 7 16 03 2025 -6.1 151.9 4.6 NEW BRITAIN REGION, P.N.G. M61 SG58 T36 D109 MA48 Z43 NG91
05 7 14 58 2025 71.0 -6.4 4.6 JAN MAYEN ISLAND REGION M73 SG163 T128 D134 MA161 Z156 NG22
05 7 14 44 2025 0.9 126.2 4.7 MOLUCCA SEA M36 SG64 T62 D123 MA59 Z59 NG84
05 7 14 30 2025 54.4 -158.8 4.9 SOUTH OF ALASKA M80 SG128 T75 D132 MA114 Z106 NG33
05 7 14 06 2025 41.8 -112.8 2.4 UTAH M111 SG136 T83 D105 MA123 Z115 NG49
05 7 13 50 2025 78.0 11.1 3.6 SVALBARD REGION M67 SG158 T122 D142 MA152 Z148 NG15
05 7 13 23 2025 37.3 -114.7 3.0 NEVADA M114 SG131 T79 D101 MA119 Z111 NG54
05 7 13 05 2025 19.2 -64.9 3.1 VIRGIN ISLANDS REGION M134 SG133 T113 D75 MA133 Z130 NG74
05 7 12 45 2025 32.5 -101.1 2.3 WESTERN TEXAS M123 SG133 T87 D93 MA123 Z115 NG59
05 7 11 28 2025 -9.9 151.8 4.7 D'ENTRECASTEAUX ISLANDS REGION M63 SG55 T34 D105 MA44 Z39 NG95
05 7 11 01 2025 10.3 -86.3 4.3 OFF COAST OF COSTA RICA M147 SG119 T91 D68 MA114 Z110 NG82
05 7 10 56 2025 -14.7 66.5 4.7 MID-INDIAN RIDGE M46 SG67 T111 D99 MA77 Z84 NG103
05 7 10 50 2025 30.0 131.1 4.4 KYUSHU, JAPAN M32 SG93 T72 D149 MA86 Z83 NG55
05 7 10 46 2025 31.4 -115.5 3.3 BAJA CALIFORNIA, MEXICO M118 SG126 T76 D96 MA114 Z106 NG60
05 7 10 45 2025 63.5 -151.1 3.7 CENTRAL ALASKA M80 SG138 T85 D135 MA124 Z116 NG25
05 7 10 00 2025 31.4 -115.6 3.1 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 7 09 56 2025 32.1 -101.1 2.2 WESTERN TEXAS M123 SG133 T86 D92 MA123 Z115 NG60
05 7 09 46 2025 30.8 -114.3 3.4 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 NG60
05 7 09 36 2025 13.0 125.1 4.7 PHILIPPINE ISLANDS REGION M29 SG76 T68 D135 MA71 Z70 NG72
05 7 09 35 2025 31.6 -104.4 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 7 09 31 2025 12.8 125.2 4.2 SAMAR, PHILIPPINES M29 SG76 T68 D134 MA71 Z70 NG73
05 7 08 36 2025 69.6 -144.4 3.4 NORTHERN ALASKA M79 SG144 T92 D137 MA131 Z123 NG19
05 7 08 18 2025 15.5 -94.4 4.0 OFFSHORE OAXACA, MEXICO M141 SG121 T85 D75 MA114 Z108 NG77
05 7 08 10 2025 40.3 -122.1 2.7 NORTHERN CALIFORNIA M108 SG130 T77 D106 MA117 Z109 NG50
05 7 07 40 2025 -33.9 -179.9 4.8 SOUTH OF KERMADEC ISLANDS M97 SG40 T14 D72 MA26 Z18 NG120
05 7 07 35 2025 18.6 96.6 4.0 MYANMAR M3 SG87 T95 D140 MA87 Z90 NG68
05 7 07 35 2025 -2.6 36.0 4.5 TANZANIA M63 SG91 T142 D95 MA104 Z112 NG93
05 7 07 22 2025 -3.8 140.2 4.0 PAPUA, INDONESIA M50 SG59 T47 D115 MA51 Z49 NG89
05 7 07 09 2025 0.9 97.5 5.3 NIAS REGION, INDONESIA M21 SG70 T88 D123 MA72 Z75 NG85
May 7, 2025
NOTEWORTHY EARTHQUAKES:
Central East Pacific Rise M 5.8 - at 60.0 degrees from Drake Passage
Vanuatu M 5.5 - at 90.0 degrees from Drake Passage
Virginia M 3.0 - felt throughout central Virginia with intensity V. Strongest since 2014.
Morocco M 4.2 - widely felt at 101-102 degrees from Drake Passage
CENTRAL EAST PACIFIC RISE:
The strongest earthquake in the world today was an M 5.8 in the central East Picific Ridge. It was not reported felt i this remote area.
The last earthquake in the Central East Pacific Rise within about 200 km of
today's epicenter with M>=5.8 occurred on July 12, 2024 also with M 5.8. Seven
earthquake have occurred in this area in the past 35 years with M 6.0-6.2 but
none of larger magnitude.
This earthquake is at the sixth node (60 degrees) from te Drake Passage event of May 2, 2025 (M 7.4) and
was likely promoted by energy from that source. This event occurred within minutes
of local solar noon with a C-class solar flare (#1280 C1.6) and was probably promoted by
energy from those sources as well. SWPC data for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1280 1809 1814 1818 C1.6 (May 6, 2025) 9.4E-04
Central East Pacific Rise M 5.8 18:15 UT
Forecast 171962 had expected today's event in the East Pacific Rise was likely
within about 100 km around May 2.
O: 06MAY2025 18:15:10 4.0S 104.4W ML=5.8 ANSS Central East Pacific Rise
P: 02MAY2025 171962 5.0S 105.0W 4.0-5.5 AAAAA no. East Pacific Rise
VANUATU:
An earthquake of M 5.5 occurred about half an hour prior to the M 5.8 in the East Pacific. This earthquake in Vanuatu is located
at the fourth node (90 degrees) from the Drake Passage and was likely promoted
by energy from that source.
This earthquake in Vanuatu occurred near the height of solar flare 1260 - an C1.6 flare -
and was probably promoted by SFE from that source given by SWPC as:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1260 1742 1750 1755 C1.6 (May 6, 2025) 5.1E-04
Vanuatu M 5.5 17:45 UT
The last earthquake within about 200 km of this event in Vanuatu with M>=5.5
was recorded on January 1, 2025 with M 5.6 and was accompanied by the
last geomagnetic storm with Ap greater the the current values of this index.
At the time this summary noted:
"The strongest earthquake in the world today was an M 5.6 in southern Vanuatu and the Loyalty Islands. NEIC did not report this earthquake was felt. It does not
appear to be an aftershock of the M 7.4 in Vanuatu of December 17 as it occurred
nearly 300 km south of that earlier epicenter. An earlier Vanuatu earthquake of M 4.8 (which was an aftershock
of the December 17 event) occurred today with M 4.4. NEIC reported this earthquake was felt with intensity III in Vila Shefa, Vanuatu.
and
This geomagnetic storm reached maximum KP of 8 within about an hour of local solar noon in California
and probably helped trigger today's earthquake in northern California. High
latitude AP reached index of 113 on January 1 with middle latitude AP 48 and
Planetary index of 86. This is the strongest geomagnetic storm since AP reached 116 on October 11, 2024
with middle latitude AP of 123." (January 1, 2025)
Forecast 172181 had expected today's event in Vanuatu was likely
within about 50 km around May 3.
O: 06MAY2025 17:45:32 20.0S 169.4E ML=5.5 ANSS Vanuatu
P: 03MAY2025 172181 20.0S 169.0E 4.0-5.4 BAAAA Vanuatu
VIRGINIA:
An unusual earthquake of M 3.0 also shook the area of western Virginia today. NEIC reported this earthquake was felt with intensity V in Virginia at Keswick with IV at Arlington, Arvonia, Diswell, Dillwyn, Kenbridge, Rice, Honaker, Big Island, Wingina and in Norwood, Pennsylvania. Intensite III was reported from Maryland, Pennsylvania North Carolina, Michigan, Alabama, Georgia, Indiana, Illinois, Massachusetts, Maine, Connecticut, New York, and Washington D.C. and most of the rest of Virginia.
EMSC reported moderate shaking in Virginia at Dillwyn, Cumberland, Appomattox, Jetersville, Schuyler, Amelia, Crewe, Palmyra, Madison Heights, Maidens, Glen Allen, Richmond, along with a deep rumbling in the ground.
The last earthquake within about 150 km of this epicenter west of Richmond, Virginia
with M>=3.0 occurred on May 22, 2014 with M 3.1-3.2. At the time this summary noted:
"An earthquake of M 3.2 today in Virginia was widely felt in that and the surrounding
states of New Jersey, Pennsylvania, the District of Columbia, Maryland, West
Virginia and North Carolina according to data from NEIC. A listing of intensities
from NEIC is located in the "EASTERN U.S." section of this summary. The epicenter was
west of Richmond and there were no initial reports of damage or casualties
with this event. It is not believed by local geologists to be an aftershock
of the M 5.9 in Virginia which occurred three years ago but regional stresses
from that event probably helped to promote this earthquake. As with today's
event a major GRB was linked to the M 5.9 of August 23, 2011 and other unusual
earthquakes on that day. Today's earthquake of M 3.2 is the strongest in the
area within 100 km of this epicenter since the event of August 23, 2011 and
and aftershock of M 3.3 on September 1, 2011. That earthquake hit about 50
km north of today's event. An M 4.5 on December 9, 2003 hit within about 20
km of today's epicenter, the only other such event in the past 25 years.
This summary issued the following note on December 10, 2003 in regard to this
earlier earthquake. It should be noted that the strongest quake of Dec. 9, 2003
was an M 6.8 in Taiwan, not unlike the M 6.0 that occurred there yesterday.
"A widely felt moderate earthquake occurred on Dec. 9 in the region of Virginia,
U.S with M 4.5. The event was felt from Philadelphia and New York on the north
to South Carolina on the south. Maximum shaking intensity was M VII (strong shaking
with moderate damage possible). AP news reports indicate damage was only
slight and no injuries were reported despite the wide felt area of this event.
The last earthquake of M>4.5 in the region (33-42N 60-95W - eastern U.S.) occurred
in northern Alabama on April 29, 2003. An M 5.0 was registered in the Kentucky/Indiana
border region on June 18, 2002. Earthquakes in Virginia which reach intensity
VII are rare indeed. The last such appears to have been an event near Luray,
VA on April 9, 1918 which was felt over 60,000 sq. mi. and on Dec. 22, 1875 an earthquake
near Arvonia, VA was felt over an area of 50,000 sq. mi. and reach intensity
VII." (December 10, 2003, May 22, 2014)
This event is at at 120 degrees (node 3) from the M 7.7 in Myanmar of
March 28 and may have been promoted by energy from that source.
It occurred within minutes of local solar noon in concert with a C-class
solar flare (#1240 C4.5, strongest flare of the past three days) and was probably promoted by SFE from that flare as reported
by SWPC:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1240 1702 1707 1711 C4.5 (May 6, 2025) 1.8E-03
Virginia M 3.1 17:08 UT
Forecast 172032 had expected this event within about 100 km was likely around
May 10, 2025.
O: 06MAY2025 17:08:17 37.4N 78.5W ML=3.0 ANSS Virginia
P: 10MAY2025 172032 37.0N 77.0W 2.0-4.3 BAAAA Kentucky/Tennessee/NC
MOROCCO
An M 4.2 also occurred today in Morocco SSW of Marrakesh. EMSC reported moderate
shaking was felt in Morocco at Ouirgane, Tameslohte, Ait Imour, Tahannaout, Oulad Berhil, Menara, Tassoultante, Sid Zouine, Marrakesh, Menara, Chichaoua, Saada, Mechouar-Kasba, Gueliz, Seedi Yousuf Bin Ali and as far as Settat, Boukoura and Zaouiat Cheikh more than 250 km from the
This earthquake is located at 101-102 degrees from the M 7.4 in the Drake Passage
and at the fourth node (90.0 degrees) from Myanmar and was probably
promoted by energy from those sources. The last earthquake in Morocco within
about 250 km of today's epicenter with M>=4.2 occurred as an M 6.8 hit
ths epicenter on September 8, 2023 causing much damage. This is probably
an aftershock of that event. At the time this summary noted:
"A rare earthquake of M 6.9 struck the area of Marrakech, Morocco today.
World press outlets reported at least 2000 were killed in this earthquake -
The strongeset in Morocco in more than a century. At least 1832 people were reported by Morocco's Interior Ministry to have
been injured in the quake among which were 1220 with critical injuries. Damage was
considerable with many structures destroyed. Most of the deaths and destruction occurred
in the province of Al Haouz near the epicenter but deaths were also recorded in
Taroudant, Chichaaoua, Marrackesh, Agadir, Casablanca among others. Damage included extensive damage to the 12th sentruy Koutobia Mosque in Marakesh. It occurred near local solar noon and was followed by an M 4.9 19 minutes
later. NEIC reported maximum intensity VII in Morocco at Marrakesh, El Kealaa and Taroudannt with VI in Oulad Teima, Quarzazate,, V in Youssoufia, Ben Guerir, Agadir, Essaouria, Ben Guerir, Agadir, Essauira, Safi, Sidi, Tisnit, Fquiah, Settat, Beni, Zagora, Berrechid, Oued Zem with IV in El Jadida, Khouribga, Azemmour, Kasba among other communities. It was also reported felt with light intensity II-III in Algeria, Spain, Portugal,
Earthquakes in Morocco or Spain at this magnitude level are rare. The historical
record shows no events of M>=6.8 within about 500 km of today's epicenter. The last
significant earthquake in the area was an M 5.6 to the east of today's epicenter
on October 23 and again on October 30, 1992. An M 6.0 hit near today's
epicenter in Morocco on February 29, 1960 - the only event in the historical
record which goes back 150 year of M>=6 in Morocco.
NEIC reported the M 4.9 aftershocks was felt with maximum intensity VI in Morocco at Guelmim, Tiznit, Taroudannt, Quarzazate, V in Marracech, Agadir, Essaouira, Ben Guerir, and Khouriba among other communities.
The earthquake in Morocco followed an M 6.6 in the Kermadec Islands. These two
epicenters are nearly antipodal and the quake in Morocco may have been triggered
by antipodal stresses associated with the M 6.4 in the Kermadec Islands." (September 9, 2023)
Today's event also saw a series of moderate sized earthquakes in the Kermadec
Islands near its antipode.
Today's earthquake in Morocco occurred at the height of the current geomagnetic
storm within minutes of local solar noon and may have been promoted by energy
from those storms.
This earthquake in Morocco was at 101-102 degrees from the M 7.4 in the
Drake Passage of May 2, 2025 and may have been promoted by energy from that
source. Other events at this distance from the Drake Passage today occurred
in the area of California and the South Indian Ocean and in the Solomon Islands.
Forecast 172035 had expected enhanced seismicity Morocco around May 5, 2025.
O: 06MAY2025 11:21:15 31.1N 8.4W ML=4.2 EMSC Morocco
P: 05MAY2025 172035 37.0N 3.0W 3.5-5.1 ADCAA Morocco/Spain
The current distribution of earthquakes from the Drake Passage had been forecast
on May 2 in this summary as:
Significant earthquakes since that forecast are starred *.
Preliminary expectations for far field triggering from Macquarie Island (M 6.8 April 29, 2024)
Antipodal (~180 degrees)
Drake Passage to Mongolia, Siberia
Outer shadow zone edge (141-148 degrees)
Drake Passage to Afghanistan*, northern India*, Taiwan*, Rat Is*, No. Philippines*,
Node 3 (120 degrees)
Drake Passage to Mindanao*, Sumatra, Central Indonesia*, Greece, western Turkey*, Italy, Reykjanes Ridge*, SE Alaska
P- and S- shadow zone edge and node 7 (101-110 degrees)
Drake Passage to Central, northern California*, Utah*, Northern Mid-Atlantic Ridge*, Gibraltar*, Spain, New Guinea*, Hawaii*,
Node 4 (90 degrees)
Drake Passage to Baja*, Gulf of California*, Northern Mid-Atlantic*, Kenya*, Western Australia, Vanuatu*, Loyalty Is*. Central Tonga
Node 5 (72 degrees)
Drake Passage to Chiapas, Mexico*, Puerto Rico*, South Africa*, northern New Zealand*, Tonga/Fiji*
Node 6 (60 degrees)
Drake Passage to Southern New Zealand, Venezuela, Panama, Ecuador*, Colombia, Central mid-Atlantic*, Macquarie
Node 7 (52 degrees)
Drake Passage to Central*, Northern Peru*, Southern mid-Atlantic
The strongest earthquake in the U.S. or Canada today was an M 3.8 in the Kenai region of southern Alaska. NEIC reported it was felt with intensity III in southern Alaska in Anchorage, Fort Richardson, Indian, Chugiak, Clam Gulch, Girdwood, Seward, Sterling and II in Cooper Landing, Eagle River, Kenai, Moose Pass, Wasilla, Soldotna, Nikolai.
NEIC reported an earthquake of M 4.4 in Myanmar was felt with intensity up to II-III in the area(s) of Myanmar at Mandalay, Patheingyi, Chanmyathazi, Mahaaungmye, Aungmyaythazan.
No Tropical Cyclones are currently active.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1160 0559 0611 0622 C1.7 (May 6, 2025) 2.0E-03
1200 1045 1051 1056 C1.8 (May 6, 2025) 1.2E-03
1210 1146 1152 1158 C1.7 (May 6, 2025) 1.1E-03
1310 1606 1614 1618 C1.1 (May 6, 2025) 1.0E-03
1230 1618 1622 1624 C2.3 (May 6, 2025) 8.8E-04
Tarapaca, Chile M 4.4 16:25 UT
1240 1702 1707 1711 C4.5 (May 6, 2025) 1.8E-03
Virginia M 3.1 17:08 UT
1260 1742 1750 1755 C1.6 (May 6, 2025) 5.1E-04
Vanuatu M 5.5 17:45 UT
1280 1809 1814 1818 C1.6 (May 6, 2025) 9.4E-04
Central East Pacific Rise M 5.8 18:15 UT
1300 1915 1922 1925 C1.4 (May 6, 2025) 5.3E-04
Argentina M 4.4 19:21 UT
1320 1925 1931 1934 C1.8 (May 6, 2025) 1.0E-03
1340 2021 2025 2028 C1.4 (May 6, 2025) 1.0E-03
1380 2028 2032 2034 C2.1 (May 6, 2025) 9.2E-04
New Guinea M 4.1 20:34 UT
Ecuador M 3.9 20:33 UT
1350 2318 2329 2333 C1.3 (May 6, 2025) 5.5E-04
So. Alaska M 3.9 23:28 UT
1360 2347 2357 0001 C3.0 (May 6, 2025) 1.6E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active May 7, unsettled May 8 minor storms May 9. Solar M-flare chance: 45% X-class: 5% proton storm: 5%
The current geomagnetic storm continued today reaching a peak at high latitude
with kp 7 around 08:30 UT.
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 15 20 15 08:00 5 90 156
A strong Gamma Ray Burst was recorded by SWIFT on May 4, 2025 at 23:25:57 UT (#250504A). A preliminary UVOT Magnitude was not assigned to this GRB.
Earthquakes of M 3.7 in Valparaiso, Chile, M 4.3 in the Drake Passage and of M 4.4 in Myanmar occurred within about 5 minutes of this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 30, 2025 at 17:31:21 UT (#250430A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on April 24, 2025 at 06:52:28 UT (#250424A). A preliminary UVOT Magnitude of V>18.7 was assigned to this GRB.
An earthquake of M 4.3 accompanied this GRB in the Fiji Islands at 06:51 UT
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 7.4 in the Drake Passage (Green stipples) of
May 2, 2025 and the North and South Geomagnetic poles due to the geomagnetic
storm today.
EARTHQUAKE LISTING
Listed are the EMSC locations for earthquakes of M>=2.0 (M)4.0 for the world) during the past day in
reverse chronological order. Distances from major recent earthquakes (in degrees)
are added at the end of the earthquake data line. These include in this
listings distances to the nearest degree between the event and the previous
mainshock as for New Zealand (ZDIS), Drake Passage (DDIS) Myanmar (MDIS); Tonga (TDIS); South Geomagnetic pole (SGDIS); North Geomagnetic Pole (NGDIS).
Earthquakes are considered nodal if they occur within about 2 degrees of
nodes (360/n*m) where n and m are small integers. For example in the current model an earthquake
would be considered possibly nodal at node 3 if it occurs at 117.5-122.5 degrees
from a mainshock.
MO DA HR MN YEAR LAT LONG MAG GEOGRAPHIC LOCATION DISTANCES FROM LARGE EQ
N+S- E+W- Mainsdist Mainsdist Mainsdist
05 7 11 28 2025 -9.9 151.8 4.7 D'ENTRECASTEAUX ISLANDS REGION M63 SG55 T34 D105 MA44 Z39 NG95
05 7 11 01 2025 10.3 -86.3 4.3 OFF COAST OF COSTA RICA M147 SG119 T91 D68 MA114 Z110 NG82
05 7 10 56 2025 -14.7 66.5 4.7 MID-INDIAN RIDGE M46 SG67 T111 D99 MA77 Z84 NG103
05 7 10 50 2025 30.0 131.0 4.7 KYUSHU, JAPAN M32 SG93 T72 D150 MA86 Z83 NG55
05 7 10 46 2025 31.4 -115.5 3.3 BAJA CALIFORNIA, MEXICO M118 SG126 T76 D96 MA114 Z106 NG60
05 7 10 45 2025 63.5 -151.1 3.7 CENTRAL ALASKA M80 SG138 T85 D135 MA124 Z116 NG25
05 7 10 00 2025 31.4 -115.6 3.1 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 7 09 56 2025 32.1 -101.1 2.2 WESTERN TEXAS M123 SG133 T86 D92 MA123 Z115 NG60
05 7 09 46 2025 30.8 -114.3 3.4 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 NG60
05 7 09 36 2025 13.0 125.1 4.7 PHILIPPINE ISLANDS REGION M29 SG76 T68 D135 MA71 Z70 NG72
05 7 09 35 2025 31.6 -104.4 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 NG60
05 7 09 31 2025 12.8 125.2 4.2 SAMAR, PHILIPPINES M29 SG76 T68 D134 MA71 Z70 NG73
05 7 08 36 2025 69.5 -144.4 3.4 NORTHERN ALASKA M79 SG144 T91 D137 MA130 Z123 NG20
05 7 08 18 2025 15.5 -94.4 4.0 OFFSHORE OAXACA, MEXICO M141 SG121 T85 D75 MA114 Z108 NG77
05 7 08 10 2025 40.3 -122.1 2.7 NORTHERN CALIFORNIA M108 SG130 T77 D106 MA117 Z109 NG50
05 7 07 40 2025 -33.9 -179.9 4.8 SOUTH OF KERMADEC ISLANDS M97 SG40 T14 D72 MA26 Z18 NG120
05 7 07 35 2025 18.6 96.6 4.0 MYANMAR M3 SG87 T95 D140 MA87 Z90 NG68
05 7 07 35 2025 -2.6 36.0 4.5 TANZANIA M63 SG91 T142 D95 MA104 Z112 NG93
05 7 07 22 2025 -3.8 140.2 4.0 PAPUA, INDONESIA M50 SG59 T47 D115 MA51 Z49 NG89
05 7 07 09 2025 0.9 97.5 5.3 NIAS REGION, INDONESIA M21 SG70 T88 D123 MA72 Z75 NG85
05 7 07 03 2025 41.0 -121.3 2.3 NORTHERN CALIFORNIA M108 SG131 T78 D107 MA118 Z110 NG50
05 7 06 42 2025 14.1 -92.3 4.3 OFFSHORE GUATEMALA M143 SG120 T87 D73 MA114 Z108 NG78
05 7 05 40 2025 0.3 125.4 4.7 MOLUCCA SEA M35 SG64 T62 D122 MA59 Z59 NG85
05 7 05 37 2025 17.6 -101.4 4.1 GUERRERO, MEXICO M137 SG120 T80 D79 MA112 Z105 NG74
05 7 05 07 2025 31.7 -104.3 3.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 7 04 41 2025 12.8 125.9 4.9 SAMAR, PHILIPPINES M30 SG76 T67 D134 MA71 Z69 NG73
05 7 03 48 2025 7.9 127.0 4.8 MINDANAO, PHILIPPINES M33 SG71 T64 D129 MA66 Z65 NG77
05 7 03 37 2025 15.5 -94.8 4.1 OFFSHORE OAXACA, MEXICO M141 SG120 T85 D75 MA114 Z108 NG77
05 7 02 15 2025 30.1 131.2 4.6 KYUSHU, JAPAN M32 SG93 T72 D150 MA86 Z83 NG55
05 7 02 09 2025 38.8 -122.8 2.2 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 NG52
05 7 01 39 2025 -29.1 31.8 3.0 SOUTH AFRICA M79 SG69 T124 D71 MA83 Z92 NG120
05 7 01 30 2025 40.3 -124.7 2.7 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 NG50
05 7 01 24 2025 18.3 -68.8 3.8 DOMINICAN REPUBLIC M137 SG131 T109 D74 MA130 Z127 NG75
05 6 23 28 2025 60.8 -150.0 3.9 KENAI PENINSULA, ALASKA M82 SG136 T83 D133 MA122 Z114 NG28
05 6 23 22 2025 31.6 -103.9 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 6 22 33 2025 49.2 158.2 4.0 EAST OF KURIL ISLANDS M55 SG114 T73 D151 MA103 Z97 NG36
05 6 22 28 2025 15.4 -94.9 4.0 OFFSHORE OAXACA, MEXICO M141 SG120 T85 D75 MA114 Z108 NG77
05 6 22 06 2025 54.3 -158.8 3.2 SOUTH OF ALASKA M80 SG128 T75 D132 MA114 Z106 NG34
05 6 21 04 2025 50.2 177.3 3.3 RAT ISLANDS, ALEUTIAN ISLANDS M68 SG118 T70 D141 MA105 Z98 NG36
05 6 20 34 2025 -3.1 141.2 4.1 NEW GUINEA, PAPUA NEW GUINEA M50 SG60 T46 D115 MA52 Z49 NG88
05 6 20 33 2025 -1.8 -77.9 3.9 ECUADOR M159 SG110 T95 D55 MA109 Z106 NG95
05 6 20 03 2025 49.4 -128.0 2.7 VANCOUVER ISLAND, CANADA REGIO M98 SG135 T80 D116 MA121 Z113 NG41
05 6 20 02 2025 -36.5 144.9 2.9 VICTORIA, AUSTRALIA M74 SG27 T39 D82 MA19 Z18 NG122
05 6 19 21 2025 -22.5 -66.3 4.4 JUJUY, ARGENTINA M163 SG92 T97 D34 MA95 Z95 NG116
05 6 19 06 2025 -25.5 27.7 3.1 SOUTH AFRICA M81 SG74 T129 D72 MA88 Z97 NG116
05 6 18 56 2025 21.7 96.4 4.4 MYANMAR M0 SG90 T97 D143 MA90 Z92 NG65
05 6 18 33 2025 38.9 -122.1 2.6 NORTHERN CALIFORNIA M109 SG129 T76 D105 MA116 Z108 NG52
05 6 18 18 2025 56.0 -149.2 3.3 GULF OF ALASKA M84 SG132 T78 D129 MA118 Z110 NG33
05 6 18 15 2025 -3.9 -104.3 5.8 CENTRAL EAST PACIFIC RISE M153 SG99 T69 D60 MA93 Z87 NG95
05 6 18 10 2025 31.6 -104.0 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 6 17 45 2025 -20.0 169.4 5.5 VANUATU M83 SG49 T15 D89 MA35 Z28 NG106
05 6 17 29 2025 -34.7 -69.1 4.0 MENDOZA, ARGENTINA M161 SG79 T90 D22 MA83 Z84 NG128
05 6 17 21 2025 4.4 128.5 4.0 NORTH OF HALMAHERA, INDONESIA M36 SG68 T61 D126 MA62 Z61 NG81
05 6 17 08 2025 37.5 -78.5 3.1 VIRGINIA M120 SG146 T106 D94 MA140 Z133 NG56
05 6 16 25 2025 -21.0 -69.7 4.4 TARAPACA, CHILE M166 SG93 T95 D35 MA95 Z95 NG114
05 6 14 24 2025 -1.8 136.4 4.1 BIAK REGION, INDONESIA M46 SG61 T51 D118 MA54 Z52 NG87
05 6 14 20 2025 -1.8 136.4 4.6 BIAK REGION, INDONESIA M46 SG61 T51 D118 MA54 Z52 NG87
05 6 13 51 2025 15.7 -93.9 4.0 OFFSHORE CHIAPAS, MEXICO M141 SG121 T86 D75 MA114 Z108 NG77
05 6 12 50 2025 46.7 -121.1 2.1 WASHINGTON M103 SG136 T81 D112 MA122 Z114 NG44
05 6 12 41 2025 35.3 -117.8 2.1 SOUTHERN CALIFORNIA M114 SG128 T76 D100 MA116 Z107 NG55
05 6 12 31 2025 13.2 -90.5 4.1 OFFSHORE GUATEMALA M144 SG120 T88 D72 MA114 Z109 NG79
05 6 12 27 2025 -20.1 -175.5 4.4 TONGA M96 SG54 T1 D82 MA40 Z32 NG106
05 6 11 56 2025 35.7 -117.6 2.2 SOUTHERN CALIFORNIA M114 SG128 T77 D101 MA116 Z108 NG55
05 6 11 21 2025 31.1 -8.4 4.2 MOROCCO M90 SG140 T163 D101 MA154 Z162 NG62
05 6 11 03 2025 -24.0 -66.7 4.4 JUJUY, ARGENTINA M163 SG90 T96 D32 MA94 Z94 NG117
05 6 11 01 2025 31.3 -115.4 3.4 BAJA CALIFORNIA, MEXICO M119 SG126 T76 D96 MA114 Z106 NG60
05 6 10 24 2025 36.1 -89.8 2.3 SOUTHEASTERN MISSOURI M121 SG141 T97 D94 MA132 Z125 NG56
05 6 09 43 2025 -21.1 -173.8 5.0 TONGA M97 SG54 T0 D80 MA40 Z31 NG107
05 6 09 22 2025 38.7 141.9 4.5 NEAR EAST COAST OF HONSHU, JAP M42 SG102 T71 D153 MA93 Z88 NG47
05 6 08 53 2025 -57.0 -67.3 3.3 DRAKE PASSAGE M142 SG58 T81 D0 MA63 Z66 NG150
05 6 08 46 2025 31.8 -104.1 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 6 08 43 2025 31.7 -115.9 3.0 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 NG59
05 6 08 28 2025 -24.2 -67.3 4.2 SALTA, ARGENTINA M164 SG90 T95 D32 MA93 Z94 NG117
05 6 08 15 2025 31.7 -104.4 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 NG60
05 6 08 08 2025 39.3 73.4 5.0 TAJIKISTAN M25 SG113 T119 D149 MA116 Z118 NG49
05 6 07 49 2025 -17.8 -175.4 4.6 TONGA M95 SG56 T2 D84 MA42 Z34 NG104
05 6 07 49 2025 4.5 128.0 4.1 NORTH OF HALMAHERA, INDONESIA M35 SG68 T62 D126 MA62 Z61 NG81
05 6 07 15 2025 -5.5 103.9 4.3 SOUTHERN SUMATRA, INDONESIA M28 SG62 T80 D117 MA63 Z66 NG91
05 6 07 13 2025 -3.8 139.3 4.6 PAPUA, INDONESIA M49 SG59 T48 D115 MA51 Z49 NG89
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