July 17, 2025
Notable earthquakes and events:
Activity on the sun nearly doubled today from any day in the previous month. NOAA indicated
that the sunspot area jumped to 900 10E-6 Hemis. from 146 yesterday and the sunspot number
increased by about one-third over any in the past month from a previous highof 158 on June 30 to 182 today. Radio flux was
also at a peak flux. A sudden commencement geomagnetic storm began about 20:00 UT
and lasted through the beginning of July 17, 2025 according to k-index data from
NOAA. The GOES magnetometer shows this storm beginning about 20:30 UT with a drop
in field strength at 20:00 of 110 nT to 65 nT at 21:00 UT. This is a G1 geomagnetic storm and is expected to bring strong auroral
displays in the next several days.
A major earthquake coincided with the peak of the geomagnetic storm of late July 16, 2025. This event occurred on July 16, 2025 in the Alaska Peninsula. A tsunami
warning is in effect for much of the Pacific Ocean. PTWC reported small tsunamis were observed
in Alaska at Sand Point, Cold Bay and Kodiak. NEIC reported intensity VI in Alaska at Sand Point; V in Port Heiden and King Cove; IV in Anchorage, Indian, False Pass, Cold Bay, Manokotak, Moose Pass, Unalaska and II in Wauconda, Aleknagik, Anchor Point, Chugiak, Clarks Point, Cooper Landing, Eagle River, Girdwood, Homer, among others.
Today's earthquake occurred near local solar noon and may have been promoted by tidal and/or geomagnetic stresses
which maximize near this hour. Aftershocks of M 5.2, 5.3 and 5.4 have thus far
been recorded. As noted in previous issues of this summary,
the full moon of July 10 was positioned such that it would affect the western
North American plate including Alaska. This was presented in this summary as:
"The full moon arrived on July 10, 2025 at 20:37 UT. Longitudes which were at local solar noon were near 130 West and 50 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight." (July 14-16, 2025)
Curiously, the UT time of the full moon on July 10 matched exactly with the
UT time of today's M 7.3 earthquake in the Alaska Peninsula (Both at 20:37 UT).
It occurred at the start of a moderate solar flare and may have been
promoted by SFE from that event. SWPC data for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
7630 2022 2124 2143 C2.3 (July 16, 2025) 4.0E-03
Today's event is the strongest in the U.S. or Canada since similar quakes
in July 22, 2020 (M 7.8) and October 19, 2020 (M 7.6) along with M 8.2 in July 2021.
It is one of four events of M>=7.3 to hit this area of Alaska in the past 35 years.
A series of major to great earthquakes hit this region beginning on July 22, 2020 (M 7.8)
with aftershocks of M 7.6 on October 18, 2020 and July 29, 2021 (M 8.2).
At the time of the first of these this summary noted:
"A major earthquake of M 7.8-7.9 shook areas south of Alaska and the Alaska Peninsula today.
NEIC reported the mainshock at M 7.8 was felt with intensity VIII in Alaska at Cold Bay; IV in Perryville, King Cove and VI at Sand Point with lesser shaking up to 500 km away at Pilot Point, Egegik, South Naknek, Kodia, King Salmon and Manokotak, Alaska.
Strong aftershocks of M 6.2 and 5.8 among others were also felt at Perryvill, Alaska with intensity III.
This ranks among the largest earthquakes in the U.S or Canada in the past 30 years.
No earthquakes of M>7.9 have been recorded in the area in at least 30 years. Four other events of M 7.8-7.9 have been recorded in the area in the past 30 years -
the last was on January 23, 2018 south of Alaska about 600 km to the east of
today's epicenter. Others occurred with M 7.8 on October 28, 2012 in Queen Charlotte
Islands, Canada; in Denali National Park, Alaska on November 3, 2002 and in the
western Andreanof Islands, Alaska on June 10, 1996. The last earthquake within
about 500 km of today's epicenter in the Alaska Peninsula with M>=7.0 occurred
on May 30, 1991 in the Unimak area with M 7.0.
This epicenter is located at the exact fourth node (90.0 degrees) from the M 7.4 in the
Kermadec Islands, New Zealand of June 18, 2020 ..." (July 22, 2020)
The strongest aftershock to this writing
was an M 5.2 which occurred within minutes of local solar noon. This
event coincided with the start of a C2.3 solar flare, the second strongest
of the day.
Today's epicenter is near 103 degrees from recent earthquakes in Snares
Island, New Zealand and may have been promoted by energy from that source.
It is also near this distance from a new Tropical Cyclone (01S) which formed
south of Sumatra today and may have been promoted by energy from this source
as noted in this summary:
"TC 01S formed today in the area south of Sumatra with winds up to 45 kts. It is expected to track to the south and west over the next several days. Enhanced seismicity with this storm is possible along the area south of Sumatra. An earthquake in the Aleutians of M 5.5 today was located at 103 degrees from this epicenter and may have been promoted by energy from this source. The antipode is near Costa Rica and Nicaragua and could see some moderate enhanced seismicity with this storm." (July 16-17, 2025)
Several days ago this summary suggested that a change in the global seismicity
pattern was imminent switching from major events in the southern to northern hemispheres. At the time it was noted:
"In the past three months global seismicity has been dominated by strong to major
earthquakes at far-south latitudes. Since the Myanmar quake of M 7.7 on March 28, 2025
and an M 6.9 in the Reykjanes Ridge of the North Atlantic on April 3 all earthquakes
in the world of M>=6.5 have occurred in the southern Hemisphere and most of these
have occurred between latitudes of 47 South and 60 South (New Zealand, Argentina, Drake Passage, Macquarie Islands).
It has now been over two months since the last earthquake in the world of M>=6.5 -
the Drake Passage quake of May 2, 2025. As mid- to late summer and early fall
arrive in the northern Hemisphere, this pattern is likely to reverse with
major events predominant in the northern Hemisphere. This often occurs
and is likely moderated by the occurrence of strong ocean storms in the
northern hemisphere in this three month period. These have been associated
with major earthquakes from the Caribbean, Japan, the Philippines and many
other areas. Readers should see this reversal begin in the next several weeks
as typhoons begin to affect the western Pacific Rim. Seismicity during this
period is likely to be strongly associated with major solar flares, tides
and major ocean storms and landfalls." (July 14, 2025)
This may also be related to a mid-summer seismicity pattern first discussed
in this summary on June 24, 2025 as:
"In the past several years a pattern has been emerging in the western U.S. and Canadian
seismicity during the early summer weeks. This has generally involved a series
of moderate to large earthquakes in southern Alaska and the U.S. and Canadian
area around British Columbia, Washington and Oregon including offshore volcanism. Over several days this
enhanced seismicity migrated to the south often culminating in early July
with a strong to major earthquake in Central or southern California and/or Nevada. This
is not a difficult pattern to discern, especially in times of low global and
regional seismicity as is current (no earthquakes in the world of M>=6.5
in nearly two months and the last swarm of such event in late March and early
April, 2025). Readers are advised to watch for this general pattern in
the next two weeks." (June 24, 2025)
Other areas near 103 degrees from the Alaska Peninsula where enhanced seismicity
appears to have occurred today include Southern Peru, and southern South Island, New Zealand
and Yemen. The area south of Sumatra near this distance from Alaska may also
see enhanced seismicity at this time. An M 4.0 shortly after the Alaskan event occurred
in Botswana near 144 degrees from it and may also have been a far-field aftershock.
This event in Botswana is also at 104 degrees from the M 6.9 in the Banda Sea
of July 14, 2025 and may have been promoted by energy from that source.
Far-field earthquake triggering near nodal distances is likely with this event.
The last earthquake within about 200 km of today's epicenter with M>=7.3
occured on July 29, 2021 with M 8.2 following events of M 7.8 on July 22, 2020
and M 7.6 on October 19, 2020. This summary followed far-field triggering
from these events with most likely regions to see significantly enhanced
seismicity given as:
Far-field Triggering areas from M 7.3 in Alaska Peninsula or July 16, 2025
Antipodal (~180 degrees)
Alaska Peninsula to South of Africa,
Outer shadow zone edge (141-148 degrees)
Alaska Peninsula to South Shetland Islands, South Georgia Islands, Mozambique, South Africa, South Atlantic,
Node 3 (120 degrees)
Alaska Peninsula to Mid-Indian Ridge, Aisen, Los Lagos, Chile,
P- and S- shadow zone edge and node 7 (101-110 degrees)
Alaska Peninsula to Southeast Pacific, Sumatra, Easter Island, South Island, New Zealand, Socotra, South of Sumatra, Owen Fracture Zone, Central Mid-Atlantic, Honduras, Sumatra, South Pacific, West Chile Rise, northern Chile, southern Peru, Java, Sumatra, South Island, New Zealand, New Guinea to Gulf of California, South of Africa, Utah, Wyoming, Idaho, Southern California,
Node 4 (90 degrees)
Alaska Peninsula to Canary Islands, Dodecanese Islands, Northern Peru, Banda Sea, Iran, Crete, Lebanon, Pakistan, Kermadec Islands, Canary Islands, Nicobar Is, Sumba/Timor,
Node 5 (72 degrees)
Alaska Peninsula to Mindoro, Philippines, Tonga/Samoa, Nicaragua, New Britain, Solomon Islands, Dominican Republic, Galapagos, Mindanao, Philippines, Fiji, England, Samoa, Philippines, New Guinea to Fox Islands, Xizang, China,
Node 6 (60 degrees)
Alaska Peninsula to Vera Cruz, Oaxaca, Mexico, Ryukyu Is, South Carolina,
Node 7 (52 degrees)
Alaska Peninsula to Iceland, Greenland Sea, Siberia, Mongolia, Jan Mayen Is, Vera Cruz, Oaxaca, Mexico, Pennsylvania, Greenland Sea, Quebec, North Carolina, New York, Izu Islands, Japan, Alabama,
O: 16JUL2025 20:37:35 54.7N 160.6W MW=7.3 NEIC ALASKA PENINSULA
O: 16JUL2025 20:37:39 54.7N 160.6W Mw=7.3 EMSC ALASKA PENINSULA
O: 16JUL2025 21:10:03 54.5N 160.4W ML=4.1 EMSC ALASKA PENINSULA
O: 16JUL2025 21:50:08 54.5N 160.1W ML=4.0 EMSC ALASKA PENINSULA
O: 16JUL2025 22:10:12 54.5N 159.9W mb=4.3 EMSC SOUTH OF ALASKA
O: 17JUL2025 00:33:53 54.5N 159.7W ML=4.0 EMSC SOUTH OF ALASKA
O: 17JUL2025 04:12:19 54.5N 159.8W mb=4.2 EMSC SOUTH OF ALASKA
O: 17JUL2025 05:06:27 54.5N 160.0W mb=4.2 EMSC ALASKA PENINSULA
O: 17JUL2025 06:39:19 54.5N 159.8W mb=4.1 EMSC SOUTH OF ALASKA
O: 16JUL2025 20:42:14 54.6N 159.8W mb=5.4 EMSC SOUTH OF ALASKA
O: 16JUL2025 20:45:23 54.6N 160.3W ML=4.3 EMSC ALASKA PENINSULA
O: 16JUL2025 21:10:40 54.6N 160.2W ML=4.1 EMSC ALASKA PENINSULA
O: 16JUL2025 21:39:30 54.6N 160.2W ML=4.2 EMSC ALASKA PENINSULA
O: 16JUL2025 22:47:20 54.6N 159.8W ML=4.2 EMSC SOUTH OF ALASKA
O: 17JUL2025 01:12:21 54.6N 160.3W Mw=5.2 EMSC ALASKA PENINSULA
O: 17JUL2025 04:30:36 54.6N 160.2W Mw=5.7 EMSC ALASKA PENINSULA
O: 17JUL2025 07:06:05 54.6N 160.2W mb=4.2 EMSC ALASKA PENINSULA
O: 16JUL2025 22:10:49 54.7N 160.3W mb=5.2 EMSC ALASKA PENINSULA
O: 17JUL2025 00:51:19 54.7N 160.3W ML=4.1 EMSC ALASKA PENINSULA
O: 17JUL2025 02:09:42 54.7N 160.0W MB=5.3 EMSC ALASKA PENINSULA
P: 16JUL2025 173954 54.6N 161.7W 3.5-4.9 AAAAA Unimak Islands, Aleutians
The earthquake in the Alaska Peninsula was preceded by an M 5.5 in the central
Aleutians, Alaska. This earthquake was not reported felt. These two events
may be related. This earthquake was reported lightly felt in the general
epicentral area by NEIC.
O: 16JUL2025 14:21:52 52.2N 173.4W MB=5.4 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 14JUL2025 173936 52.1N 172.8W 3.5-5.3 AAAAA Andreanoff Isls, Aleutians
NEIC reported an earthquake of M 3.1 in Northern Nevada was felt with intensity up to II-III in the area(s) of Northern Nevada in Winnemucca.
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 in Anchorage.
GeoNet reported the following data for an M 4.0 in South Island, New Zealand today.
O: 15JUL2025 17:39:10 45.4S 166.7E MB=4.0 GEONET Felt with weak intensity in the area south of Te Anau, South Island. 1 reports of felt intensity came from the area east and north of the epicenter including 1 with weak intensity; 0 light; 0 moderate; 0 strong; 0 severe and 0 extreme.
EMSC reported an earthquake of M 4.1 in Afghanistan was felt with intensity up to IV in the area(s) of Afghanistan in Kabul.
EMSC reported an earthquake of M 4.5 in Oaxaca, Mexico was felt with intensity up to IV in the area(s) of Oaxaca, Mexico in La Trinidad de Ixtlan and Oaxaca.
EMSC reported an earthquake of M 4.7 in Atacama, Chile was felt with intensity up to IV in the area(s) of Atacama, Chile in Vicuna.
TROPICAL CYCLONE 01S
---- ------- ---------- -------- ----- ------ ------- ---------------
TC 01S 2025-07-17 00:00 UT 9.0S 90.0E 045 kts South of Sumatra
TC 01S formed today in the area south of Sumatra with winds up to 45 kts. It is expected to track to the south and west over the next several days. Enhanced seismicity with this storm is possible along the area south of Sumatra. An earthquake in the Aleutians of M 5.5 today was located at 103 degrees from this epicenter and may have been promoted by energy from this source. The antipode is near Costa Rica and Nicaragua and could see some moderate enhanced seismicity with this storm.
A tropical cyclone may be forming east of the northern Philippines. This system is currently located at 14N 129E and moving WNW with winds up to 28 kts. It could make landfall July 17-18 in an active region of Luzon, Phillippines where an M 5.5 occurred yesterday. Further seismic enhancement in this region is considered likely in the next several days.
Following is the listing of C- M- or X-class flares from SWPC for the date
of July 16, 2025. These listings are published daily in this summary and at SWPC.
The main line gives details of flares. Subsequent lines identify some earthquakes
which are at or after the time of the flare and could have been affected by
immediate Solar Flare Effects (SFE). Some earthquakes occur at longitudes
which were at local solar noon or local solar midnight and may also have
been affected by SFE. These are not identified here.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
7300 0036 0055 0105 C2.9 (July 16, 2025) 4.2E-03
Antofagasta M 3.8 00:38 UT
Luzon M 4.5 01:03 UT
7330 0351 0358 0400 C5.0 (July 16, 2025) 1.3E-03
7390 0606 0611 0621 C1.4 (July 16, 2025) 1.2E-03
Ryukyu Is. M 4.5 06:06 UT
Sulaweai M 3.5 06:06 UT
7410 0711 0720 0724 C1.3 (July 16, 2025) 9.5E-04
Nicobar Is. M 4.1 07:27 UT
7610 1856 1904 1909 C2.5 (July 16, 2025) 1.8E-03
7640 2030 2111 2117 C1.6 (July 16, 2025) 1.5E-03*
Alaska Peninsula M 7.3 20:37 UT
7650 2117 2127 2143 C2.3 (July 16, 2025) 3.2E-03
*indicates modified reading from NOAA GOES Graph
GEOMAGNETIC FIELD: unsettled July 17-18 quiet July 19. Solar M-flare chance: 60% X-class: 5% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 17 24 14 20:00 6 182 152
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
July 16, 2025
Notable earthquakes and events:
An unprecedented earthquake of M 5.8 hit off northern Greenland today near the North Geographic Pole. It was not
reported felt in this remote area but NEIC reported probable shaking in the area with intensity VIII. Historical earthquake catalogs show no earthquakes
of this size or larger have occurred in this area in recorded seismicity.
This epicenter is at 103 degrees from the M 6.7-6.9 in the Banda Sea of July 14,
a distance at which S- and P- seismic phases return to the surface after
reflecting off the the core-mantle boundary and where strong seismic triggering is often observed following major
earthquakes and this event in the Arctic appears to have been triggered by
strong seismic energy from the Banda Sea. Unloading of some of the weight
of the Greenland Ice Cap over the past several years of warming may have
led to this as a reactionary rebound of the land in Greenland.
The distance of 103 degrees from the Banda Sea includes Vancouver, areas off
the coast of Northern California and the volcanic area west of Oregon. These could see
enhanced seismicity in the next several days as noted in the far-field forecast
for the Banda Sea published in this summary on July 14 as:
"P- and S- shadow zone edge and node 7 (101-110 degrees)
Banda Sea, Indonesia to Uganda, Vancouver, Eastern Mediterranean, Greenland Sea, Coast of Oregon, Vancouver, BC, Western Turkey, " (July 14, 2025)
Today's earthquake in Greenland occurred near local solar noon. It occurred
at the maximum output of solar flare 7160 (C2.4) - the strongest flare of
the day and was probably promoted by SFE from that flare combined with
tidal stresses which maximize near this hour. An M 5.2 also occurred simultaneously
with the Greenland quake as an M 5.2 in the active zone of northern Ryukyu
Islands, Japan (also at 17:15 UT). Data for this flare from SWPC follow.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
7160 1657 1708 1719 C2.4 (July 15, 2025) 2.8E-03
Greenland M 5.8 17:15 UT
Ryukyu Is. M 5.2 17:15 UT
O: 15JUL2025 17:15:55 83.3N 32.8W ML=5.8 NEIC GREENLAND
A moderately strong M 5.7 earthquake also occurred today in the region of the Kermadec Islands,
New Zealand. NEIC reported it may have been felt lightly in North Island, New Zealand
near Auckland. This epicenter is near the antipode of the M 5.2 south of Spain
of July 14, a mainshock which did damage in the area of southern Spain and
has seen a number of small aftershocks.
O: 15JUL2025 09:55:01 30.1S 178.0W MW=5.7 EMSC KERMADEC ISLANDS, NEW ZEALAND
P: 16JUL2025 174000 30.0S 179.0W 4.0-5.7 AAAAA No. Kermadec Islands
A new volcanic eruption began today in southern Iceland. Spectacular lava
flows can be viewed on the internet. It was accompanied by several moderate
sized earthquakes. Other volcanic eruptions occurred today at Mount Marapi, Indonesia
where ash was sent 1200 m high and in Hawaii.
O: 14JUL2025 23:30:17 66.5N 17.4W ML=4.2 EMSC ICELAND REGION
O: 16JUL2025 03:42:44 63.4N 23.6W ML=2.8 EMSC ICELAND REGION
P: 10JUL2025 173707 63.0N 23.0W 3.0-4.4 BAAAA Iceland area
NEIC reported an earthquake of M 2.7 west of Los Angeles, California was felt with intensity up to II-III in the area(s) of west of Los Angeles, California with III in Fillmore and Goleta.
A foreshock of M 2.5 was reported felt with intensity III in Fillmore and Oxnard.
NEIC reported an earthquake of M 4.8 in Guam was felt with intensity up to II-III in the area(s) of Guam with II in Tamuning.
NEIC reported an earthquake of M 4.7 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar at Mandalay.
EMSC reported moderate shaking in Myanmar at Mandalay, Kyaukse, Pyin Oo Lwin, and Meiktila.
NEIC reported an earthquake of M 2.6 in Central California was felt with intensity up to II-III in the area(s) of Central California in Tehachapi and Caliente.
NEIC reported an earthquake of M 4.9 in Eastern Honshu, Japan was felt with intensity up to II-III in the area(s) of Eastern Honshu, Japan with IV in Chiba at Urayasu and Ibaraki at Ryugasaki. Intensity II-III was also felt in Tokyo and Saitama Prefectures.
EMSC reported strong, but quick shaking in Japan at Kamagaya, Narashino, Ichikawa-minami, Urayasu, Tokyo, Musashino, Komae, Maebashi, Hachioji.
NEIC reported an earthquake of M 3.0 in Northern Kansas was felt with intensity up to II-III in the area(s) of Northern Kansas with III in Plainville.
NEIC reported an earthquake of M 4.2 in Southern Peru was felt with intensity up to II-III in the area(s) of Southern Peru at Arequipa.
NEIC reported an earthquake of M 4.7 in Mauritius was possibly felt near Port Mathurin, Mauritius.
NEIC reported an earthquake of M 4.5 in Tenggara Barat, Indonesia was felt with intensity up to II-III in the area(s) of Tenggara Barat, Indonesia at Mataram Nusa with intensity IV.
EMSC reported moderate shaking in the Lombok area of Indonesia at Senggigi, Mambalan, Gili Trawangan, Mataram, Gili Air, Prawira, Lingsar, Biaslantang Kaler, Jelateng Timur, Biaslantang Kaler, Amed, Melasti, Penggakrajeng, Banjar Budakeling, Selong, Banjar Manukayaanyar, Banjar Pasekin, Ubud, Bali, Bisma, Nyuh Kuning, Bamjar Taman, Batanpoh, Medura, Karyadharma, Legian, Banjar Anyr at Lovina North Bali.
EMSC reported an earthquake of M 4.5 in Northern Iran was felt with intensity up to IV in the area(s) of Northern Iran at Amirieh, Semnan.
TROPICAL STORM 08W
---- ------- ---------- -------- ----- ------ ------- ---------------
TS 08W 2025-07-16 00:00 UT 47.7N 152.7E 050 kts Kuril Islands
TS 08W continued today in the area of the Kuril Islands with winds up to 50 kts. It is expected to track to the north and east over the next several days and to dissipate today. Enhanced seismicity with this storm is possible along the east coast of Honshu, Japan and the Kuril Islands in the next day is possible. Quakes associated with this storm thus far have included an M 5.5 in the Kuril Islands and an M 5.2 in eastern Honshu, Japan.
A tropical cyclone may be forming east of the northern Philippines. This system is currently located at 14N 129E and moving WNW with winds up to 28 kts. It could make landfall July 17-18 in an active region of Luzon, Phillippines where an M 5.5 occurred yesterday. Further seismic enhancement in this region is considered likely in the next several days.
Following is the listing of C- M- or X-class flares from SWPC for the date
of July 12, 2025. These listings are published daily in this summary and at SWPC.
The main line gives details of flares. Subsequent lines identify some earthquakes
which are at or after the time of the flare and could have been affected by
immediate Solar Flare Effects (SFE). Some earthquakes occur at longitudes
which were at local solar noon or local solar midnight and may also have
been affected by SFE. These are not identified here.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
7000 0600 0611 0621 C1.6 (July 15, 2025) 2.0E-03
7160 1657 1708 1719 C2.4 (July 15, 2025) 2.8E-03
Greenland M 5.8 17:15 UT
Ryukyu Is. M 5.2 17:15 UT
Coast No. California M 2.8 17:04 UT
GEOMAGNETIC FIELD: active July 16 unsettled July 17 quiet July 18. Solar M-flare chance: 50% X-class: 5% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 23 37 17 09:00 6 146 139
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
uly 15, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 6.2 in the region of Panama.
NEIC reported it was felt lightly in Boquete, Chiriqui, Panama and possibly in Costa Rica but was likely felt with intensity IV in the epicentral area.
This is the strongest earthquake in Panama within about 200 km of this epicenter
since an M 6.6 on January 7, 2015 and an M 6.3 on June 4, 2012. At the time of
the event in 2015 this summary noted:
"... seismic acvtivation of the southern U.S. may have been precursory to
an M 6.0-6.6 in Panama as these earthquakes ceased when this earthquake in
Panama occurred. This was the largest earthquake of the day and appears to
have been promoted by tidal interactions. This earthquake occurred at 05:07 UT
within about 25 minutes of local solar midnight at 05:32 UT a time of maximum
tidal stresses. This summary had expected increased seismicity in this
region with the full moon alignment
...
There were no immediate reports of damage or felt effects from this event which
occurred far off the southern coast of Panama but it is likely it was felt
in the region of Panama. ... The last earthquake of M>=6.6 within 150 km
of this epicenter occurred on March 31, 1999 with M 7.0. This was the only
such event in the area in the past 25 years. An M 6.5 hit about 300 km north
of this on December 8, 2014. This is the largest earthquake in the world
since that December event a month ago. The epicenter is located at 149 degrees
from the Molucca Sea events, a distance where seismic energy is concentrated.
It is also at 105 degrees from the M 6.0 in South Island, New Zealand which
occurred yesterday, another distance with high concentrations of seismic energy
following large earthquakes. It is likely there was a promotional effect
from these two events on today's earthquake south of Panama." (January 7, 2015)
The antipode of this epicenter in Panama is near an active seismic zone
south of Sumatra (6S 100E) where moderately enhanced seismicity may occur
in the next several days.
This earthquake occurred at 145 degrees (node 5) from the M 6.7 in Halmahera
of July 14, 2025 and was probably promoted by energy from that source as a
far-field aftershock. This had been anticipated in this summary in the previous issue as:
"Outer shadow zone edge (141-148 degrees)
Banda Sea to Panama, Ecuador, Nicaragua, Tarapaca, Chile, Costa Rica, South Carolina, Panama, Gulf of Maine, Indonesia to Canary Islands, Guatemala, northern Chile, Argentina, Nicaragua, Chile, Maine," (July 14, 2025)
Other earthquakes today at this distance from the Banda Sea occurred in Central Peru (M 3.8, 3.9); and Nicaragua (M 4.5).
This earthquake occurred within minutes of local solar noon in Panama and was
probably enhanced by tidal effects which maximize near this hour.
The full moon arrived on July 10, 2025 at 20:37 UT. Longitudes which were at local solar noon were near 130 West and 50 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
The strongest earthquakes of the day - the M 6.2 in Panama occurred with the strongest solar flare of the day (C4.5 - #6950)
and may have been promoted by SFE from this flare as it occurred while the epicentral area was sub-solar. Data for this flare
from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6950 1649 1706 1727 C4.5 (July 14, 2025) 8.2E-03
Panama M 6.2 17:16:50 UT
O: 14JUL2025 17:16:50 6.1N 82.7W MW=6.2 EMSC SOUTH OF PANAMA
O: 14JUL2025 22:51:09 6.2N 82.5W mb=4.2 EMSC SOUTH OF PANAMA
P: 9JUL2025 173500 5.0N 83.0W 3.5-5.4 BBAAA Costa Rica
P: 15JUL2025 173767 6.0N 82.0W 4.0-5.9 AAAAA So. of Panama
An earthquake of M 5.5 also struck the Northern Philippines today in the area of Ilocos. NEIC reported it was felt with maximum intensity VI in Laoag and V in Bantay with II in Narvacan.
EMSC reported strong shaking in Dumalneg, Philippines. Many residents fled their homes during the earthquake.
PHIVOLCS reported it was felt with intensity V in Bacarra, City of Laoag,m Pasuquin and Vintar, Ilocos Norte; Cabugao, Sinait and City of Vigan, Ilocos Sur and IV in City of Batac, Paoay, and San Nicolas, Ilocos Norte; Banayoyo, Bantay, Caoayan, Magsingal, San Lidefonso, San Juan, Santa Catalina and Santo Domingo, Ilocos Sur and III in Abra, City of Bauio,Benguet, Ifugao, Mountain Province.
An aftershock of M 4.6 was reported west of Santa Catalina, Ilocos Sur by PHIVOLCS.
The last earthquake of M>5.5 in Luzon within about 200 km of this epicenter
occurred as an M 5.7 on December 3, 2024.
O: 15JUL2025 02:38:19 18.2N 120.6E MW=5.5 EMSC LUZON, PHILIPPINES
P: 16JUL2025 173807 17.0N 120.0E 3.5-4.9 ABAAA Luzon, Philippines
P: 20JUL2025 173807 19.0N 122.0E 3.5-4.9 BABAA Luzon, Philippines
A moderately strong earthquake was also located in the Kuril Islands with M 5.8 today. NEIC reported it may have been felt with intensity up to IV in the epicentral area of the central Kuril Islands.
The last earthquake with M>5.8 within about 200 km of this epicenter in the
Kuril Islands was an M 6.0 on June 13, 2025. Today's event is probably
an aftershock of that.
Tropical Storm Nari was passing near this epicenter when the earthquake occurred
as noted in the previous issue of this summary and may have helped promote
this earthquake.
"TS Nari (TD 06W) continued today in the area of Honshu, Japan with winds up to 55 kts. It is expected to track to the north over the next several days. Enhanced seismicity with this storm is possible in Honshu Japan but is likely to be moderate as this storm will not make landfall according to the current projected path. The antipodal area of western Atlantic at 36S 38W is not expected to see seismic enhancement at this time." (July 14, 2025)
and
"TS Nari (TD 06W) continued today in the area of the Kuril Islands with winds up to 55 kts. It is expected to dissipate over the next several days. Enhanced seismicity with this storm is possible in the Kuril Islands." (July 15, 2025)
O: 14JUL2025 21:38:00 46.6N 151.4E MW=5.8 EMSC KURIL ISLANDS
P: 6JUL2025 173673 47.0N 151.0E 3.5-5.5 CAAAA So. Kurils
P: 15JUL2025 173926 45.0N 151.0E 3.5-5.4 ABAAA So. Kurils
Aftershocks of the M 6.7-6.9 earthquake in Tanimbar, Banda Sea, Indonesia of July 14
continued today. BMG reported this event was felt with intensity IV in Maluku, Tanimbar and Tual with III in Bagian, Aru and Kaimana.
O: 14JUL2025 05:49:58 6.2S 131.3E ML=6.9 BMG MALUKU, INDONESIA
O: 13JUL2025 14:18:34 6.7S 130.2E MB=4.4 EMSC BANDA SEA
O: 14JUL2025 06:18:23 6.2S 131.1E ML=4.4 EMSC KEP. TANIMBAR REGION, INDONESIA
O: 14JUL2025 05:49:58 6.2S 131.1E MW=6.7 EMSC KEP. TANIMBAR REGION, INDONESI
P: 6JUL2025 173531 7.0S 130.0E 4.0-5.4 CAAAA West Irian, PNG
P: 14JUL2025 173794 6.0S 130.0E 4.0-6.4 AAAAA West Irian, PNG
P: 17JUL2025 173794 7.0S 130.0E 4.0-5.9 BAAAA West Irian, PNG
The strongest earthquake in the U.S. or Canada today was an M 4.4 in Southern Alaska. NEIC reported it was felt with intensity III in Anchorage, Anchor Point, Clam Gulch, Cooper Landing, Eagle River and Homer and II in Elmendorf AFB and Chugiak, Alaska.
EMSC reported moderate shaking in Anchorage, Alaska. The last earthquake of M>=4.4
within about 150 km of this epicenter in southern Alaska occurred as an M 4.4
on July 5, 2025. The last of M>=5 in the area occurred July 28, 2023 with M 5.0.
This event occurred near local solar midnight and may have been promoted by
tidal and/or geomagnetic stresses which maximize near this hour.
O: 14JUL2025 12:18:02 59.9N 153.4W ML=4.4 EMSC SOUTHERN ALASKA
NEIC reported an earthquake of M 4.5 in Myanmar was felt with intensity up to II-III in the area(s) of Myanmar with II in Thailand and Mae Sai Chiang Rai and in Yunjinghong, Yunnan, China.
EMSC reported dizziness with the quake in Tachilek, Myanmar.
EMSC reported an earthquake of M 4.5 in Northern Chile was felt with intensity up to IV in the area(s) of Northern Chile at Arica.
CSN reported the following parameters for this earthquake:
14-07-2025 19:37 17.80S 70.38W 111 4.4 III Arica and Parinacota at Arica, Codpa, Chile.
BMG reported an earthquake of M 5.1 in Molucca Sea was felt with intensity up to IV in the area(s) of Molucca Sea in Pulau Batand, Dua, Ternate and Maluku and III in Ternate.
BMG reported an earthquake of M 5.3 in Pomona, Indonesia was felt with intensity up to IV in the area(s) of Pomona, Lore, Posso and III in Morowali, Luwu, Konawe. Indonesia
TROPICAL STORM 08W
---- ------- ---------- -------- ----- ------ ------- ---------------
TS 08W 2025-07-15 00:00 UT 32.7N 140.7E 050 kts Izu Islands
TS 08W formed today in the area south of Honshu Japan in the Izu Islands with winds up to 50 kts. It is expected to track to the north and east over the next several days. Enhanced seismicity with this storm is possible along the east coast of Honshu, Japan in the next three days.
TROPICAL STORM NARI (DEPRESSION 06W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS NARI 2025-07-15 00:00 UT 46.0N 150.6E 050 kts Kuril Islands
TS Nari (TD 06W) continued today in the area of the Kuril Islands with winds up to 55 kts. It is expected to dissipate over the next several days. Enhanced seismicity with this storm is possible in the Kuril Islands.
The full moon arrived on July 10, 2025 at 20:37 UT. Longitudes which were at local solar noon were near 130 West and 50 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
Following is the listing of C- M- or X-class flares from SWPC for the date
of July 12, 2025. These listings are published daily in this summary and at SWPC.
The main line gives details of flares. Subsequent lines identify some earthquakes
which are at or after the time of the flare and could have been affected by
immediate Solar Flare Effects (SFE). Some earthquakes occur at longitudes
which were at local solar noon or local solar midnight and may also have
been affected by SFE. These are not identified here.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6770 0038 0048 0105 C2.1 (July 14, 2025) 2.9E-03
6780 0247 0254 0301 C2.1 (July 14, 2025) 1.6E-03
6810 0456 0501 0503 C4.0 (July 14, 2025) 1.5E-03
6820 0510 0510 0514 C4.0 (July 14, 2025) 1.5E-03
Spain M 5.2 05:13 UT
6830 0536 0541 0556 C2.3 (July 14, 2025) 2.8E-03
Tanimbar M 6.7 05:49:58 UT
6840 0748 0758 0803 C1.8 (July 14, 2025) 1.5E-03
Puget Sound M 2.1 07:47 UT
Auckland Islands, M 4.6 08:00 UT
Myanmar M 4.6 08:06 UT
6850 0848 0855 0900 C1.5 (July 14, 2025) 1.4E-03
6960 0900 0907 0915 C1.5 (July 14, 2025) 1.5E-03
6860 0928 0938 0942 C2.9 (July 14, 2025) 1.9E-03
Molucca Sea M 3.3 09:28 UT
Hawaii M 2.9 09:28 UT
6900 1246 1257 1307 C2.1 (July 14, 2025) 2.7E-03
Bali M 4.1 12:46 UT
Sulawesi M 5.0 12:52 UT
6910 1307 1320 1330 C2.1 (July 14, 2025) 3.0E-03
6930 1404 1429 1443 C3.1 (July 14, 2025) 7.3E-03
Molucca Sea M 4.6 14:06 UT
Papua M 4.5 14:24:27 UT
6940 1443 1457 1502 C3.3 (July 14, 2025) 4.0E-03
6950 1649 1706 1727 C4.5 (July 14, 2025) 8.2E-03
Tanimbar M 6.7 05:49:58 UT
GEOMAGNETIC FIELD: unsettled July 15-17. Solar M-flare chance: 50% X-class: 5% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 23 41 17 12:00 6 139 128
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude of V=18.39 was assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
A strong Gamma Ray Burst was recorded by SWIFT on June 28, 2025 at 00:55:56 UT (#250628A). A preliminary UVOT Magnitude of V>17.8 was assigned to this GRB.
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 6.7-6.9 in the Banda Sea of July 14, 2025.
July 14, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 6.7 in the Banda Sea area of Indonesia. NEIC reported it was felt in Indonesia at Ambon, Maluku with intensity IV in in the Northern Terrirory of Australia at Coonawarra with III in Darwin, Howard Springs, Humpty Doo-MacMinns Lagoon, Palmerston, and in Tual, Maluu, Indonesia with intensity II.
EMSC reported moderate shaking in Dili, Tanimbar and in Australia at Berrimah, Woolner, Darwin, Larrakeyah, Stuart Park, Driver, Humpty Doo, Kununurra.
An M 4.4 foreshock occurred about 6 hours before the mainshock in the Banda Sea. This is the strongest earthquake in the world in more than two months - since an M 7.4 in the
Drake Passage south of South America on May 2, 2025. It is also the strongest earthquake
in the Banda Sea within about 250 km of this epicenter since an M 7.1 on November 8, 2023.
At the time this summary noted:
The strongest earthquakes in the world today were a pair of strong to major earthquakes of M 6.7 and 7.1 in the Banda Sea, Indonesia.
NEIC reported it was felt with maximum intensity III in the Banda Sea, Indonesia area.
The mainshock of M 7.1 was preceded about a minute early by a forecshock of M 6.7 which was felt in the area with maximum intensity VI.
These events were also felt in northern Australia at Darwin. BMG reported the mainshock
of M 7.1 was felt with intensity up to V in the Tanimbar Islands. BMG reported this
activity in the Tanimbar region was felt with intensity IV in Bandaneira, III in Maluku Tengah, Banda, Maluku Tenggara, at Kecil, Manyeuw, Hoat Sorbay, in Tanimbar at Tanimbar Selatan, Selaru, Wer Tamrian, Wer Maktian; in Seram Bagian in Maluku Barat Daya and in Kota Tual and many other communities experienced lesser shaking.
No tsunamis were observed or expected with these events. A moderate foreshock
hit the region yesterday and was reported in this summary as:
"The strongest earthquake near the geomagnetic equator in Indonesia today was an M 5.2
in the Banda Sea. EMSC reported this earthquake of M 5.2 in Banda Sea, Indonesia was felt with intensity II-III in the area(s) of Banda Sea, Indonesia in Dili, Timor.
BMG reported intensity III-IV in Timur, Alor, Nusa, Tengara, Maluku, Tengah Selatan, amont others.
This follows a relatively quiet period in Indonesia over the past week and probably
is the first salvo of enhanced seismicity in the area with the major geomagnetic
storm of yesterday and today (see above). The last earthquake of M>=5.2 in
the Banda Sea area was an M 5.8 on September 23, 2023. At the time this summary noted:
"The strongest earthquake in the world today was an M 5.8 in the Banda Sea, Indonesia at a deep focus. NEIC reported it was felt in East Timor at Dili in Dili and Dare and in northern Territory, Australia with IV in Howard Springs, Katherine and II-III in Coonawarra, Darwin, Humpty Doo-MacMinns Lagoon.
This is the largest earthquake within about 200 km of this epicenter since an
M 5.9 on August 29, 2023, and an M 6.2 on May 24, 2023. A major M 7.6 hit near
today's epicenter on January 9, 2023. This may be an aftershock of that mainshock." (November 7, 2023, September 23, 2023)
The strongest earthquake within about 250 km of today's earthquake in Indonesia
with M>=7.1 occurred on January 9, 2023 with M 7.6. At the time this summary noted:
When a similar M 7.5-7.6 hit at deep focus near today's Indonesian epicenter
on January 27, 2006 this summary noted in this regard:
"A major earthquake initially given magnitude of M 7.7 occurred today
in the Banda Sea region of Southern Indonesia south of Ambon, Moluccas.
Data on the NEIC website indicates that this event was felt with maximum
intensity V at Dili, East Timore and with intensity III in northwestern
Australia at Darwin, Howard Springs and Humpty Doo-MacMinns Lagoon and with
lesser intensity at Jabiru and Palmerston, Australia nearly 900 km to the
southeast of this epicenter. Press accounts on Associated Press indicate
that the earthquake was felt strongly on Ambon, the capital of Maluku
province. Residenst of Ambon ran out of homes to higher places in fear of
a tsunami. The quake was also felt with lesser intensity at Bali, Sorong
and in south Sulawesi province, Indonesia. Residents also fled their homes
about 440 km to the south in East Timor. There were no immediate reports
of serious damage or casualties. The earthquake hit at a depth of about
350 km and there is no danger of a major tsunami from earthquakes which
occur at such depths and do not propagate to the surface. Some local
landslide tsunamis may occur, but in this case the shaking on the surface
was probably not sufficient to trigger these. Strong earthquakes of M 7.5-8.5
have hit the area in 1963, 1950, 1948, 1938, 1917-1918 and 1899. Like most of the other large
events in the past month, this epicenter is located at the Core-mantle
Shadow Zone Boundary (MSZB) from the strong M 7.4 which hit the South
Atlantic on Jan. 2, 2006." (January 9, 2023, November 8, 2023)
Today's event in the Banda Sea, Indonesia occurred near local solar noon and may have been
promoted by tidal and/or geomagnetic stresses which maximize near this hour.
The full moon arrived on July 10, 2025 at 20:37 UT. Longitudes which were at local solar noon were near 130 West and 50 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
The strongest earthquakes of the day - the M 6.7-6.9 in Banda Sea; the M 5.2
in Spain and the M 6.2 in Panama occurred with the strongest solar flares
of the day (C4.0 - #6810, 6820); Tanimbar (C2.3 - #6830) and Panama (C4.5 - #6950)
and may have been promoted by SFE from these flares. Data for these flares
from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6810 0456 0501 0503 C4.0 (July 14, 2025) 1.5E-03
6820 0510 0510 0514 C4.0 (July 14, 2025) 1.5E-03
Spain M 5.2 05:13 UT
6830 0536 0541 0556 C2.3 (July 14, 2025) 2.8E-03
Tanimbar M 6.7 05:49:58 UT
6950 1649 1706 1727 C4.5 (July 14, 2025) 8.2E-03
Panama M 6.2 17:16:50 UT
Today's change in global seismicity had been anticipated at this time in this summary
in the previous issue as:
"In the past three months global seismicity has been dominated by strong to major
earthquakes at far-south latitudes. Since the Myanmar quake of M 7.7 on March 28, 2025
and an M 6.9 in the Reykjanes Ridge of the North Atlantic on April 3 all earthquakes
in the world of M>=6.5 have occurred in the southern Hemisphere and most of these
have occurred between latitudes of 47 South and 60 South (New Zealand, Argentina, Drake Passage, Macquarie Islands).
It has now been over two months since the last earthquake in the world of M>=6.5 -
the Drake Passage quake of May 2, 2025. As mid- to late summer and early fall
arrive in the northern Hemisphere, this pattern is likely to reverse with
major events predominant in the northern Hemisphere. This often occurs
and is likely moderated by the occurrence of strong ocean storms in the
northern hemisphere in this three month period. These have been associated
with major earthquakes from the Caribbean, Japan, the Philippines and many
other areas. Readers should see this reversal begin in the next several weeks
as typhoons begin to affect the western Pacific Rim. Seismicity during this
period is likely to be strongly associated with major solar flares, tides
and major ocean storms and landfalls.
A series of moderately strong M-class solar flares occurred today (July 12, 2025 UT) according to data from SWPC.
This is an abrupt change from solar behavior over the past two weeks and could indicate
that enhanced global seismicity should follow.
Many of these occurred after this report was completed but intial data suggests
they have been effective in triggering earthquakes in several areas. Watch
for more details in the next issue of this summary." (July 13, 2025)
A moderate foreshock was reported in the area yesterday by BMG. This was noted
in the previous issue of this summary as:
"BMG reported an earthquake of M 5.6 in Seram was felt with intensity up to IV in the area(s) of Seram with III in Kab Fak Fak and Kaimana. Also reported lightly felt in Indonesia with II in Kab Maluku, Seram, Aru, Tual, Yapen, Bintuni, Wondama and Kaimana." (July 12, 2025)
Far-field seismic enhancement from the Band Sea earthquake today is most likely as follows:
Antipodal (~180 degrees)
Banda Sea, Indonesia to
Outer shadow zone edge (141-148 degrees)
Banda Sea to Panama, Ecuador, Nicaragua, Tarapaca, Chile, Costa Rica, South Carolina, Panama, Gulf of Maine, Indonesia to Canary Islands, Guatemala, northern Chile, Argentina, Nicaragua, Chile, Maine,
Node 3 (120 degrees)
Banda Sea, Indonesia to Gabon, Northern Sumatra, Iceland,
P- and S- shadow zone edge and node 7 (101-110 degrees)
Banda Sea, Indonesia to Uganda, Vancouver, Eastern Mediterranean, Greenland Sea, Coast of Oregon, Vancouver, BC, Western Turkey,
Node 4 (90 degrees)
Banda Sea, Indonesia to Iran- Turkey, Red Sea, Southern Alaska,
Node 5 (72 degrees)
Banda Sea to Andreanof Is, Tajikistan, Southwest Indian Ridge,
Node 6 (60 degrees)
Banda Sea, Indonesia to
Node 7 (52 degrees)
Banda Sea, Indonesia to Macquarie Island, Hokkaido, Japan, New Zealand, Tonga, Fiji,
Today's epicenter in the Banda Sea is at 51.4 degrees from recent strong earthquakes
in Snares Island, New Zealand. This is the seventh node and energy from that
source may have helped promote today's events.
O: 14JUL2025 05:49:58 6.2S 131.3E ML=6.9 BMG MALUKU, INDONESIA
O: 13JUL2025 14:18:34 6.7S 130.2E MB=4.4 EMSC BANDA SEA
O: 14JUL2025 06:18:23 6.2S 131.1E ML=4.4 EMSC KEP. TANIMBAR REGION, INDONESIA
O: 14JUL2025 05:49:58 6.2S 131.1E MW=6.7 EMSC KEP. TANIMBAR REGION, INDONESI
P: 6JUL2025 173531 7.0S 130.0E 4.0-5.4 CAAAA West Irian, PNG
P: 14JUL2025 173794 6.0S 130.0E 4.0-6.4 AAAAA West Irian, PNG
P: 17JUL2025 173794 7.0S 130.0E 4.0-5.9 BAAAA West Irian, PNG
The M 6.7 in Indonesia was preceded by an M 5.2 minutes before in the region
south of Spain about half an hour earlier. NEIC reported maximum intensity V was felt in Almeria, Spain at Huercal, Lubrin, Vicat; IV in Almeria, Cantoria, Carboneras, Cuevas del Almanzora, El Ejido, Garrucha, Mojacar, Roquetas de Mar, Vera, Algeciras Cartagena, Aguilas, Murcia, Cadiz, and III in Spain in Almeria, AAlacant, Granada and Malaga.
Damage was reported by the press (online) in Southern Spain to roofs and buildings. This event is the strongest in the area within about 150 km of
this epicenter in Gibraltar since an M 6.3 on April 11, 2010. At the time this summary noted:
"Because the M 6.3 under Spain was located at a depth of about 600 km the
cone of felt effects was broad but the felt intensities were low. The
earthquake was felt within about 2000 km of the epicenter with maximum
intensity II-III in Spain in Valencia, Trujillo, Torremolinos, Seville, Villa del Prado, Torrevieja, San Fernadnao, Malaga,
Melllla, Merbella, Madrid, Jerez, Guadalajara, Granada, Fuengirola, Cordoba,
Cuenca, Ciudad Real, Badajoz, and Alcala de Henares. It was felt in Algeria
at Ain Turk, and Sidi Bal'abbas; in Morocco at Tetouan, Tangier, Ouezzane,
Fez, El Aioun Sidi Mellouk, Casablanca, and Al Hoceima. NEIC reported
the quake was also felt in Gibraltar and in the United Kingdom at Poole, Brighton and London
with intensity II-III.
The earthquake occurred eight minutes after local midnight
suggesting a tidal component to the triggering especially because it is nearly
the end of the lunar month. The new month will begin on April 14 at 12:29 UT.
The only similar earthquake in historical times at this depth in Spain
in 1954 also occurred at the end of the lunar month (25 days into the month
vs 27 days for today's event).
The only other deep focus earthquake near this epicenter in the historical catalog
of M>=6.2 occurred on March 29, 1954 with M 7.0. It was followed five months
later by and M 6.8 near the surface on September 9, 1954 about 200 km to the
southeast. A strong event aslo hit this area on October 10, 1980 with M 7.7. Historic
quakes hit the area in December, 1884 and March 1829. The event in 1980
hit near El Asnan and killed more than 5000 people while injuring 9000.
The earthquake in September, 1954 also hit northern Algeria and killed 1400
while injuring more than 3000 in he rgion of Orleansville. The event in March,
1954 was larger and more damaging than today's although it hit at the same
depth and epicenter as the earthquake today. It caused extensive damage at Malaga
and was felt in the same general area as the earthquake today." (April 11, 2010)
O: 14JUL2025 05:13:28 36.6N 1.9W MW=5.2 EMSC WESTERN MEDITERRANEAN SEA
P: 9JUL2025 173595 35.0N 4.0W 3.5-5.1 BBBAA Morocco/Spain
P: 14JUL2025 173861 37.0N 3.0W 3.5-5.5 AAAAA Morocco/Spain
NEIC reported an earthquake of M 4.5 in Myanmar was felt with intensity up to II-III in the area(s) of Myanmar with II in Yunjinghong, Yunnan, China and Mae Sai Chiang Rai, Thailand.
NEIC reported an earthquake of M 2.7 in Mammoth Lakes, California was felt with intensity up to II-III in the area(s) of Mammoth Lakes, California at Bishop.
NEIC reported an earthquake of M 4.0 in Central California was felt with intensity up to II-III in the area(s) of Central California with IV in East Tulare County, Ridgecrest and III in Lone Pine, Shaver Lake, Pinecrest and Twain Harte.
GeoNet reported the following parameters for an M 4.9 near Snares Islands, New Zealand today:
O: 13JUL2025 18:18:04 47.4S 165.6E ML=4.9 GEONET Felt with weak intensity by 2 persons.
TROPICAL DEPRESSION 07W
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 07W 2025-07-14 00:00 UT 32.7N 130.8E 035 kts Kyushu Islands
TD 07W formed today in the area of Kyushu, Japan with winds up to 35 kts. It is expected to track to the north and west over the next several days. Enhanced seismicity with this storm is possible in the Kyushu and northern Ryukyu Islands but is likely to be moderate. The antipodal area of western Atlantic at 32S 50W off Brazil is not expected to see seismic enhancement at this time.
TROPICAL STORM NARI (DEPRESSION 06W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS NARI 2025-07-14 00:00 UT 36.8N 142.6E 055 kts East of Honshu, Japan
TS Nari (TD 06W) continued today in the area of Honshu, Japan with winds up to 55 kts. It is expected to track to the north over the next several days. Enhanced seismicity with this storm is possible in Honshu Japan but is likely to be moderate as this storm will not make landfall according to the current projected path. The antipodal area of western Atlantic at 36S 38W is not expected to see seismic enhancement at this time.
The full moon arrived on July 10, 2025 at 20:37 UT. Longitudes which were at local solar noon were near 130 West and 50 East longitudes. Seismic areas near these longitudes are in western U.S. and Canada, Alaska and in western Canada. Those in the east include areas of eastern Turkey, Ethiopia and the East Africa area and in Iran and Iraq. These are the most likely areas to see significant tidal triggering in the next week. Other areas may also see tidal stresses sufficient to trigger seismicity. Such events area most likely near local solar noon and local solar midnight.
Following is the listing of C- M- or X-class flares from SWPC for the date
of July 12, 2025. These listings are published daily in this summary and at SWPC.
The main line gives details of flares. Subsequent lines identify some earthquakes
which are at or after the time of the flare and could have been affected by
immediate Solar Flare Effects (SFE). Some earthquakes occur at longitudes
which were at local solar noon or local solar midnight and may also have
been affected by SFE. These are not identified here.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6810 0456 0501 0503 C4.0 (July 14, 2025) 1.5E-03
6820 0510 0510 0514 C4.0 (July 14, 2025) 1.5E-03
Spain M 5.2 05:13 UT
6830 0536 0541 0556 C2.3 (July 14, 2025) 2.8E-03
Tanimbar M 6.7 05:49:58 UT
6950 1649 1706 1727 C4.5 (July 14, 2025) 8.2E-03
Tanimbar M 6.7 05:49:58 UT
6460 0045 0050 0056 C1.2 (July 13, 2025) 8.4E-04
Lombok IndonesiaM 4.1 00:50 UT
6490 0152 0212 0222 C1.5 (July 13, 2025) 2.7E-03
6600 0222 0230 0233 C1.5 (July 13, 2025) 1.1E-03
Honshu M 3.8 02:33 UT
6530 0346 0402 0408 C9.0 (July 13, 2025) 6.1E-03
6540 0520 0528 0537 C1.6 (July 13, 2025) 1.5E-03
Gibraltar M 1.6 05:43 UT
6550 0547 0555 0600 C3.1 (July 13, 2025) 1.8E-03
Argentina M 5.0 05:57 UT
6560 0634 0637 0643 C1.5 (July 13, 2025) 8.7E-04
6590 0643 0647 0651 C2.4 (July 13, 2025) 1.1E-03
Gibraltar M 1.7 06:46 M 1.9 06:38 UT
6570 0657 0704 0707 C1.7 (July 13, 2025) 1.6E-03
6620 1015 1020 1024 C1.2 (July 13, 2025) 6.3E-04
Gibraltar M 1.8 10:26 UT
6630 1124 1134 1148 C1.7 (July 13, 2025) 2.3E-03
Ryukyu M 5.0 11:29 UT
6640 1640 1648 1654 C1.0 (July 13, 2025) 8.9E-04
Greece M 3.0 16:40 UT
Ceebes Sea M 4.1 16:52 UT
Mindanao M 5.1 17:08 UT
6660 1800 1809 1811 C2.9 (July 13, 2025) 1.0E-03
Tonga M 4.8 17:59 UT
Kalimantan M 3.7 18:12 UT
6710 2144 2150 2159 C8.9 (July 13, 2025) 6.0E-03
6740 2312 2317 2319 C2.7 (July 13, 2025) 8.9E-04
6760 2344 2359 0012 C2.5 (July 13, 2025) 3.6E-03
Myanmar M 4.5 00:01 UT
Fiji M 5.2 00:03 UT
GEOMAGNETIC FIELD: active July 14 unsettled July 15-16. Solar M-flare chance: 50% X-class: 5% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 23 41 17 12:00 6 102 138
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude of V=18.39 was assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
A strong Gamma Ray Burst was recorded by SWIFT on June 28, 2025 at 00:55:56 UT (#250628A). A preliminary UVOT Magnitude of V>17.8 was assigned to this GRB.
The current earthquakes map contains expected distances at which enhanced seismicity is
likely at this time due to the M 6.7 in the Banda Sea of July 14, 2025.
July 13, 2025
Notable earthquakes and events:
In the past three months global seismicity has been dominated by strong to major
earthquakes at far-south latitudes. Since the Myanmar quake of M 7.7 on March 28, 2025
and an M 6.9 in the Reykjanes Ridge of the North Atlantic on April 3 all earthquakes
in the world of M>=6.5 have occurred in the southern Hemisphere and most of these
have occurred between latitudes of 47 South and 60 South (New Zealand, Argentina, Drake Passage, Macquarie Islands).
It has now been over two months since the last earthquake in the world of M>=6.5 -
the Drake Passage quake of May 2, 2025. As mid- to late summer and early fall
arrive in the northern Hemisphere, this pattern is likely to reverse with
major events predominant in the northern Hemisphere. This often occurs
and is likely moderated by the occurrence of strong ocean storms in the
northern hemisphere in this three month period. These have been associated
with major earthquakes from the Caribbean, Japan, the Philippines and many
other areas. Readers should see this reversal begin in the next several weeks
as typhoons begin to affect the western Pacific Rim. Seismicity during this
period is likely to be strongly associated with major solar flares, tides
and major ocean storms and landfalls.
A series of moderately strong M-class solar flares occurred today (July 12, 2025 UT) according to data from SWPC.
This is an abrupt change from solar behavior over the past two weeks and could indicate
that enhanced global seismicity should follow.
Many of these occurred after this report was completed but intial data suggests
they have been effective in triggering earthquakes in several areas. Watch
for more details in the next issue of this summary.
Following is the listing of C- M- or X-class flares from SWPC for the date
of July 12, 2025. These listings are published daily in this summary and at SWPC.
The main line gives details of flares. Subsequent lines identify some earthquakes
which are at or after the time of the flare and could have been affected by
immediate Solar Flare Effects (SFE). Some earthquakes occur at longitudes
which were at local solar noon or local solar midnight and may also have
been affected by SFE. These are not identified here.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6150 0059 0102 0111 C1.8 (July 12, 2025) 1.3E-03
Hokkaido Japan M 3.7 01:07 UT
6180 0204 0214 0219 C2.3 (July 12, 2025) 1.8E-03
Chiapas M 4.0 02:12 UT
Ryukyu Is. M 4.8, 5.0 02:01-02:03 UT
6210 0256 0308 0313 C2.1 (July 12, 2025) 2.7E-03
Nias M 3.4 03:12 UT
6300 0313 0323 0326 C2.0 (July 12, 2025) 1.7E-03
Java M 4.8 03:25 UT
North Carolina M 2.2 03:23 UT
6230 0332 0339 0343 C4.1 (July 12, 2025) 2.0E-03
Antofagasta M 3.9 03:41 UT
6240 0353 0402 0409 M1.4 (July 12, 2025) 8.2E-03
Ryukyu M 3.7 03:53 UT
Halmahera M 4.5 04:00 UT
Savu Sea M 3.0 03:52 UT
6270 0642 0653 0703 C3.9 (July 12, 2025) 4.5E-03
Argentina M 4.9 06:52 UT
San Francisco M 2.1 07:19 UT
6330 0814 0820 0823 C4.8 (July 12, 2025) 2.1E-03
6350 0829 0834 0842 M2.3 (July 12, 2025) 1.3E-02
Central California M 3.5 08:31 UT
6360 1154 1210 1216 M1.6 (July 12, 2025) 1.2E-02
Central Alaska M 4.4 12:36 UT
6370 1243 1248 1252 C3.4 (July 12, 2025) 1.8E-03
Kermadec Is. M 3.8 12:52 UT
6400 1417 1421 1424 C2.7 (July 12, 2025) 1.1E-03
Kuril Is. M 4.4 14:23 UT
Venezuela M 4.2 14:15 UT
6410 1442 1507 1532 C5.3 (July 12, 2025) 1.3E-02
Sunda M 4.5 14:41 UT
6420 1748 1757 1801 C1.6 (July 12, 2025) 1.3E-03
New Guinea M 4.7 18:09 UT
6430 1815 1835 1850 C7.0 (July 12, 2025) 1.0E-02
Oaxaca M 4.118:33 UT
Fiji M 4.5 18:12 UT
6440 2104 2108 2112 C1.5 (July 12, 2025) 8.6E-04
Fiji M 4.3 21:15 UT
6450 2146 2202 2210 C5.5 (July 12, 2025) 5.0E-03
Azores M 2.1 21:46 UT
Guatemaa M 3.1 21:46 UT
Costa Rica M 3.6 21:49 UT
Oaxaca M 3.6 21:59 UT
Aftershocks in the Guatemala City area continued to be felt today. An M 3.6 was reported by NEIC to have been felt in San jose Pinula with IV; in Antigua Guatemala with III and in Guatemala City with intensity II.
NEIC reported an earthquake of M 5.3 in Vanuatu was felt with intensity up to II-III in the area(s) of Vanuatu with IV in Vila Shefa.
The strongest earthquake in the U.S. or Canada today was an M 4.5 in Central Alaska. NEIC reported it was felt with intensity III in Chugiak, Eagle River, Glennallen, Talkeetna and II in Alaska in Matanuska-Susitna Borough, Palmer, Wasilla and Willow.
This earthquake occurred near local solar midnight in Alaska and may have
been promoted by SFE from a strong M1.6 class solar flare (#6360) as it
occurred at the peak output of that flare. SWPC data for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6360 1154 1210 1216 M1.6 (July 12, 2025) 1.2E-02
Central Alaska M 4.4 12:36 UT
O: 12JUL2025 12:36:33 62.1N 149.2W MW=4.4 EMSC CENTRAL ALASKA
P: 8JUL2025 173704 62.7N 149.3W 3.2-5.0 BAAAA Central Alaska
NEIC reported an earthquake of M 2.9 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska at Anchorage, Indian, Eagle River.
NEIC reported an earthquake of M 2.9 in Oklahoma was felt with intensity up to II-III in the area(s) of Oklahoma with IV in Coyle and III in Guthrie.
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 at Pecos.
NEIC reported an earthquake of M 3.5 in Central California was felt with intensity up to II-III in the area(s) of Central California with III in Hanford Carmel, Sunnyvale and II in San Miguel, Salinas, Monterey, Pebble Beach, Seaside and Soledad and may have been felt as far as western Nevada.
This earthquake occurred near local solar midnight in California and may have
been promoted by SFE from a strong M2.3 class solar flare (#6350) as it
occurred at the peak output of that flare. SWPC data for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
6350 0829 0834 0842 M2.3 (July 12, 2025) 1.3E-02
Central California M 3.5 08:31 UT
O: 12JUL2025 08:31:00 36.5N 121.1W MW=3.5 EMSC CENTRAL CALIFORNIA
P: 7JUL2025 173581 36.2N 120.8W 2.5-4.4 BAAAA Central California
GeoNet reported the following parameters for an M 4.2 near Queenstown, South Island, New Zealand today.
O: 12JUL2025 08:59:38 45.1S 168.2E MB=4.2 GEONET Felt with weak intensity in the area south of Queenstown, South Island. 2306 reports of felt intensity came from the area east and north of the epicenter including 843 with weak intensity; 1236 light; 208 moderate; 19 strong; 0 severe and 0 extreme.
EMSC reported an earthquake of M 4.5 in Tajikistan was felt with intensity up to IV in the area(s) of Tajikistan in Dushanbe and in Uzbekistan at Tashkent and Salor.
TROPICAL DEPRESSION 07W
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 07W 2025-07-13 00:00 UT 30.7N 126.1E 040 kts East of Kyushu Islands
TD 07W formed today in the area of west of Kyushu, Japan with winds up to 40 kts. It is expected to track to the north and west over the next several days. Enhanced seismicity with this storm is possible in the Kyushu and northern Ryukyu Islands but is likely to be moderate but could be strong in the area of 29N 129E which is currently seeing a strong swarm of daily moderate sized earthquakes. The antipodal area of western Atlantic at 30S 56W off Brazil is not expected to see seismic enhancement at this time.
TROPICAL STORM NARI (DEPRESSION 06W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS NARI 2025-07-13 00:00 UT 26.5N 142.5E 045 kts East of Bonin Islands
TS Nari (TD 06W) continued today in the area of Bonin Islands, Japan with winds up to 45 kts. It is expected to track to the north over the next several days. Enhanced seismicity with this storm is possible in the Bonin, Izu and Honshu Islands of Japan but is likely to be moderate as this storm will not make landfall according to the current projected path. The antipodal area of western Atlantic at 26S 38W is not expected to see seismic enhancement at this time.
GEOMAGNETIC FIELD: active July 13 unsettled July 14-15. Solar M-flare chance: 55% X-class: 5% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 13 29 10 12:00 6 93 139
uly 12, 2025
Notable earthquakes and events:
A series of moderately strong M-class solar flares occurred today (July 12, 2025 UT) according to data from SWPC.
This is an abrupt change from solar behavior over the past two weeks and could indicate
that enhanced global seismicity should follow.
Many of these occurred after this report was completed but intial data suggests
they have been effective in triggering earthquakes in several areas. Watch
for more details in the next issue of this summary.
The strongest earthquake in the U.S. or Canada today was an M 4.6 in the Central Andreanof Islands, Alaska. NEIC reported it was likely felt with intensity III in the epicentral area.
This event occurred within minutes of local solar midnight in the Andreanof
Islands and occurred at the end of solar flare 5870 - a C2.0 flare which
may also have helped trigger an M 4.3 in Southern California minutes earlier.
Data for this solar flare from SWPC follow.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5870 1115 1122 1127 C2.0 (July 11, 2025) 1.3E-03
Kansas M 2.7 11:23 UT
Southern California M 2.3 11:26 UT
Andreanof Islands M 4.5 11:32 UT
This earthquake, like the M 4.3 in southern California today occurred near 103
degrees from recent strong earthquakes in Snares Island, New Zealand an may
ha been promoted by energy from that source.
O: 11JUL2025 11:32:16 51.6N 176.7W MB=4.5 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 7JUL2025 173682 50.7N 176.2W 3.5-4.9 BAAAA Andreanoff Isls, Aleutians
An earthquake of M 4.3 occurred in the Borrego Springs, southern California swarm today. NEIC reported intensity IV in Los Angeles; III in Alpine, Carlsbad, and II in Whittier, Campo, Chula Vista, Imperial Beach and Carlsbad, California.
Foreshocks of M 3.4 and 3.1 were felt in the same epicentral area.
The last earthquake within about 100 km of this epicenter in Southern California
with M>=4.3 occurred as an M 4.4 on January 23, 2025. The last of significantly larger magnitude in the area was an M 4.9 on May 12, 2024.
At the time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 4.9-5.0 in Baja California
near the border with California (US), It was widely felt with intensity up to
VI in the region of Delta, Baja California, Mexico. This is the strongest
earthquake in Baja within about 200 km of this event in more than three years.
An M 4.8 hit the same epicenter on March 31, 2021. The series began with a
light event of M 2.4 that occurred at the height of the strongest solar flare
of the day - an X1.0 which peaked at 16:35 UT. An earthquake of M 3.9 off the
coast of Honshu, Japan also occurred with the peak of this X1.0 class flare
at 16:37 UT. A similar simultaneity of the foreshock to this event occurred
with M 4.1 on May 8, 2024 and an X-class solar flare." (May 12, 2024)
Today's M 4.3 is the largest event to date in this swarm which began yesterday as was
described in the previous issue of this summary at the time as:
"An earthquake of M 3.7 was widely felt near Borrego Springs, Southern California today. NEIC reported intensity III in Borrego Springs and Warner Springs with II in Spring Valley, Julian, Ramona.
This appears to be part of a regional activation of smaller events which
occurred today and late on July 10, 2025. These episodes often culminate
in a moderate sized event about a day after beginning, so more such activity
in this area is likely in the next several days including a moderate
earthquake of M 4.0-4.5. The last series of this type in the Borrego Springs
area of California occurred on April 14, 2025 and included an M 5.2 and 4.0
earthquake." (July 11, 2025)
The M 4.3 in Southern California today may have been triggered by SFE
associated with solar flare 5870 as it occurred near the peak output
of that C2.0 solar flare. The largest earthquake in the U.S. or Canada
was also closely associated with this flare (an M 4.5 in the Andreanof Islands, Alaska).
Data on this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5870 1115 1122 1127 C2.0 (July 11, 2025) 1.3E-03
Kansas M 2.7 11:23 UT
Southern California M 2.3 11:26 UT
Andreanof Islands M 4.5 11:32 UT
New Zealand M 3.5 11:32 UT
This earthquake, like the M 4.5 in the Andreanof Island, Alaska today occurred near 103
degrees from recent strong earthquakes in Snares Island, New Zealand an may
ha been promoted by energy from that source.
O: 11JUL2025 08:18:37 33.2N 115.7W ML=3.0 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 08:19:31 33.2N 115.6W ML=2.2 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 08:22:36 33.2N 115.6W ML=3.3 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 08:52:20 33.2N 115.6W ML=2.4 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 09:55:42 33.2N 115.6W Mw=4.3 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 09:59:52 33.2N 115.6W ML=2.1 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 10:21:50 33.2N 115.6W ML=2.2 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 11:26:16 33.2N 115.6W ML=2.3 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 14:08:57 33.2N 116.1W ML=2.0 EMSC SOUTHERN CALIFORNIA
O: 12JUL2025 04:35:55 33.2N 116.7W ML=2.1 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 13:39:38 33.3N 116.2W ML=2.3 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 17:49:19 33.3N 116.4W ML=2.4 EMSC SOUTHERN CALIFORNIA
O: 11JUL2025 21:21:45 31.4N 115.5W ML=3.2 EMSC BAJA CALIFORNIA, MEXICO
P: 6JUL2025 173613 33.0N 115.9W 2.5-4.4 BAAAA So. California
P: 10JUL2025 173613 32.5N 115.7W 2.5-4.5 AAAAA So. California
NEIC reported an earthquake of M 4.9 in Argentina was felt with intensity up to II-III in the area(s) of Argentina in Cordoba.
NEIC reported an earthquake of M 2.8 in Wyoming was felt with intensity up to II-III in the area(s) of Wyoming in Freedom, Grover and III in Etna and Thayne.
NEIC reported an earthquake of M 4.7 in The Ionian Sea in Zakinthos, Greece was felt with intensity up to II-III in the area(s) of The Ionian Sea in Zakinthos, Greece in Pantokrator (III) and Kalmakion, Makhairadon, Mpokhali.
EMSC reported moderate shaling in Greece at Laganas, Kalamakion, Argasi, Ambelikipoi, Planos, Sipseli, Alonia, Pyrgos, Argostolion, Archaia Olympia.
An M 4.2 foreshock was felt with intensity IV in Planos; III in Argostolion, and II in Sami and Valsamata.
NEIC reported an earthquake of M 4.0 in Dilli, India was felt with intensity up to II-III in the area(s) of Dili, India with III in Bhalswa Jahangirpur, Roshan, Tigri, Gurgaon and Jhajjar, Haryana and in Ni Dilli with II.
EMSC reported moderate shaking in India at Nangloi, Gurgaon, Gurugram, Shahdara, Deoli, Sector, Jaiur.
NEIC reported an earthquake of M 5.0 in Northern Sumatra was felt with intensity up to II-III in the area(s) of Northern Sumatra with II in Kabanjahe.
EMSC reported light shaking in Kuala Lumpur, Malaysia.
NEIC reported an earthquake of M 2.7 in Kansas was felt with intensity up to IV in the area(s) of Kansas in Hill City.
NEIC reported an earthquake of M 4.0 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar in Mandalay.
BMG reported an earthquake of M 5.6 in Seram was felt with intensity up to IV in the area(s) of Seram with III in Kab Fak Fak and Kaimana. Also reported lightly felt in Indonesia with II in Kab Maluku, Seram, Aru, Tual, Yapen, Bintuni, Wondama and Kaimana.
TROPICAL DEPRESSION 07W
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 07W 2025-07-12 00:00 UT 30.5N 125.2E 040 kts East of Kyushu Islands
TD 07W formed today in the area of west of Kyushu, Japan with winds up to 40 kts. It is expected to track to the north and west over the next several days. Enhanced seismicity with this storm is possible in the Kyushu and northern Ryukyu Islands but is likely to be moderate. The antipodal area of western Atlantic at 30S 56W off Brazil is not expected to see seismic enhancement at this time.
TROPICAL STORM NARI (DEPRESSION 06W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS NARI 2025-07-12 00:00 UT 25.5N 141.2E 045 kts East of Bonin Islands
TS Nari (TD 06W) continued today in the area of Bonin Islands, Japan with winds up to 45 kts. It is expected to track to the north over the next several days. Enhanced seismicity with this storm is possible in the Bonin, Izu and Honshu Islands of Japan but is likely to be moderate as this storm will not make landfall according to the current projected path. The antipodal area of western Atlantic at 25S 38W is not expected to see seismic enhancement at this time.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5790 0137 0144 0150 C1.3 (July 11, 2025) 1.0E-03
Ryukyu Is. M 4.4 01:38 UT
5840 0923 0930 0932 C1.7 (July 11, 2025) 8.4E-04
5850 0951 0958 1004 C1.2 (July 11, 2025) 1.0E-03
Southern California M 4.3 09:55 UT
5870 1115 1122 1127 C2.0 (July 11, 2025) 1.3E-03
Kansas M 2.7 11:23 UT
Southern California M 2.3 11:26 UT
Andreanof Islands M 4.5 11:32 UT
New Zealand M 3.5 11:32 UT
5880 1151 1155 1200 C1.7 (July 11, 2025) 8.8E-04
5910 1308 1314 1319 C2.2 (July 11, 2025) 1.4E-03
5950 1410 1420 1430 C5.2 (July 11, 2025) 4.4E-03
Halmahera M 4.9 14:10 UT
Southern California M 2.0 14:09 UT
India M 3.7 14:19 UT
5960 1509 1513 1521 C3.5 (July 11, 2025) 2.5E-03
6030 1701 1709 1711 C8.0 (July 11, 2025) 2.6E-03
Peru M 4.6 17:18 UT
6130 2110 2122 2132 C1.7 (July 11, 2025) 2.1E-03
Baja California M 3.2 21:21 UT
6140 2350 0002 0005 C2.2 (July 11, 2025) 1.5E-03
Kuril Is. M 4.1 23:54 UT
Sumatra M 4.7 00:12 UT
*Indicates readings taken from continuous chart from SWPC
GEOMAGNETIC FIELD: active July 13 unsettled July 12 and 14. Solar M-flare chance: 45% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 19 25 18 12:00 6 98 132
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude of V=18.39 was assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
A strong Gamma Ray Burst was recorded by SWIFT on June 28, 2025 at 00:55:56 UT (#250628A). A preliminary UVOT Magnitude of V>17.8 was assigned to this GRB.
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).
July 11, 2025
Notable earthquakes and events:
The most unusual earthquake in the world today was an M 4.8 in South Africa.
NEIC reported intensity III in Stilfontein, North West South Africa.
EMSC reported moderate shaking in Klerksdorp, South Africa.
The last earthquake of M>=4.8 within about 200 km of this epicenter in
South Africa occurred on June 11, 2023 and on April 3, 2017. At the time
of the 2023 event this summary noted:
An unusually large earthquake of M 5.0 was widely felt in the region of Johannesburg, Gauteng, South Africa today.
NEIC reported maximum shaking of V in Gauteng at Alberton, Boksburg, Brakpan, Heidelberg, Springs with IV in Johannesburg, Benoni, Randvaal, Soweto, Nigel. The earthquake was felt within about 500 km of the epicenter including as far as Free State, Natal, KwaZulu, Mpumalanga, Limpopo, Botswana, Northern and Eastern Cape, with intensity of III-V.
Press accounts indicated no damage or casualties were associated with this
earthquake which lasted for abouot 30 seconds shaking time. This is the strongest
earthquake in South Africa within about 400 km of this epicenter since an M It is located near
the antipode of the eruption of Kilauea Volcano in Hawaii of June 8. The last
earthquakes of significantly larger magnitude in this area were an M 5.3 on August 5, 2014 and
prior to that an M 5.7 on April 22, 1999 - the largest in the area in the
past 35 years. At the time of the M 5.3 on August 5, 2014 this summary noted in
regard to this and activity at antipodal Hawaii ...
The last earthquake within 150 km of this epicenter with M>=6.4 occurred on
April 22, 1999 about 100 km south of this. Coincidentally, the second strongest
earthquake in Hawaii in the past 15 years hit the Island on April 17, 1999
with M 5.8. This summary speculated at the time about the triggering that
was likely between these two events." (August 5, 2014, June 11, 2023)
At this moment Hawaii continues to experience a major volcanic eruption at
Kilauea. A nine-hour eruption at Kilauea occurred today.
This earthquake in South Africa may have been promoted by SFE associated with the
second strongest solar flare in the past week - a C4.3 (#5650) as it occurred
near the maximum output of that flare. Data from SWPC for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5650 1140 1204 1224 C4.3 (July 10, 2025) 8.9E-03
South Africa M 4.8 11:49 UT
Oaxaca M 4.1 12:19 UT
O: 10JUL2025 11:48:50 26.9S 26.7E ML=4.8 EMSC SOUTH AFRICA
An earthquake of M 3.7 was widely felt near Borrego Springs, Southern California today. NEIC reported intensity III in Borrego Springs and Warner Springs with II in Spring Valley, Julian, Ramona.
This appears to be part of a regional activation of smaller events which
occurred today and late on July 10, 2025. These episodes often culminate
in a moderate sized event about a day after beginning, so more such activity
in this area is likely in the next several days including a moderate
earthquake of M 4.0-4.5. The last series of this type in the Borrego Springs
area of California occurred on April 14, 2025 and included an M 5.2 and 4.0
earthquake.
O: 11JUL2025 00:16:46 33.3N 116.4W ML=3.7 NEIC SOUTHERN CALIFORNIA
NEIC reported an earthquake of M 2.9 in the California Geysers was felt with intensity up to II-III in the area(s) of the California Geysers with III in Kelseyville, Middletown, and II in Saint Helena, and Windsor.
NEIC reported an earthquake of M 2.7 in Yellowstone, Wyoming was not felt in the epicentral area.
NEIC reported an earthquake of M 3.2 in Central California was felt with intensity up to II-III in the area(s) of Central California with II in Paso Robles.
NEIC reported an earthquake of M 3.2 in Wellington, New Zealand with IV in Lower Hutt; III in Upper Hutt and II in Porirua and Wellington. was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M 3.7 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas in Midland with II and in Hobbs, New Mexico.
NEIC reported an earthquake of M 5.1 in Chiapas, Mexico was felt with intensity up to II-III in the area(s) of Chiapas, Mexico at San Cristobal de las Casas and possibly in Tlalnepantla, Mexico.
This earthquake may have been promoted by SFE associated with solar flare
5660 as it occurred at the start of that flare. Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5660 1321 1328 1330 C3.4 (July 10, 2025) 1.6E-03
Chiapas M 5.1 13:19 UT
NEIC reported an earthquake of M 2.7 in Northern Kansas was felt with intensity up to II-III in the area(s) of Northern Kansas in Stockton.
NEIC reported an earthquake of M 5.1 in Tarapaca, Chile was felt with intensity up to II-III in the area(s) of Tarapaca, Chile with III in Arica, Iquique and in Peru with IV at Tacna and II in Arequipa.
EMSC reported moderate shaking in Peru at Sobraya and Tacna and in Chile in Iquique, and Arequipa.
CSN reported the following parameters for this event:
10-07-2025 09:26 19.01S 69.25W 116 5.3 IV Arica and Parinacota at Arica, Cuya, San Miguel de Azapa; III in Codpa, Pocon Chile, Putre; Tarapaca with IV at Camina, Pisagua, III at Iquique, Chile, Alto Hospicio and Huara, Chile.
NEIC reported an earthquake of M 4.0 in Guatemala was felt with intensity up to II-III in the area(s) of Guatemala with IV at Antigua and III in San Bartolome Milpas Altas, Sacatepequez and in Guatemala City.
EMSC reported strong shaking in Guatemala at Villa Nueva and Magdalena Milpas Altas, San Cucas Sacatepequez and Guatemala City.
EMSC reported an earthquake of M 4.2 in Java, Indonesia was felt with intensity up to IV in the area(s) of Java, Indonesia at Yogyakarta.
BMG reported an earthquake of M 5.0 in The Banda Sea was felt with intensity up to IV in the area(s) of The Banda Sea with II in Kab. Maluku at Dawelor Dawera.
TROPICAL DEPRESSION 06W
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 06W 2025-07-11 00:00 UT 25.1N 140.2E 040 kts East of Bonin Islands
TD 06W formed today in the area off western Bonin Islands, Japan with winds up to 40 kts. It is expected to track to the north over the next several days. Enhanced seismicity with this storm is possible in the Bonin, Izu and Honshu Islands of Japan but is likely to be moderate as this storm will not make landfall according to the current projected path. The antipodal area of western Atlantic at 25S 40W is not expected to see seismic enhancement at this time.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5560 0238 0244 0250 C1.3 (July 10, 2025) 9.6E-04
5580 0430 0436 0441 C1.3 (July 10, 2025) 9.1E-04
Tonga M 5.2 04:46 UT
5620 0637 0642 0646 C3.8 (July 10, 2025) 1.6E-03
Seram M 4.7 06:50 UT
Missouri M 2.2 06:35 UT
5640 0738 0749 0754 C1.7 (July 10, 2025) 1.7E-03
5650 1140 1204 1224 C4.3 (July 10, 2025) 8.9E-03
South Africa M 4.8 11:49 UT
Oaxaca M 4.1 12:19 UT
5660 1321 1328 1330 C3.4 (July 10, 2025) 1.6E-03
Chiapas M 5.1 13:19 UT
5710 1708 1711 1714 C4.2 (July 10, 2025) 1.7E-03
5720 1757 1804 1807 C3.9 (July 10, 2025) 2.3E-03
5730 1927 1936 1939 C8.9 (July 10, 2025) 3.0E-03
5750 2023 2030 2032 C2.7 (July 10, 2025) 1.5E-03
Guatemala M 3.8 20:22 UT
5760 2035 2042 2049 C2.5 (July 10, 2025) 2.2E-03
5780 2204 2212 2215 C2.1 (July 10, 2025) 1.3E-03
*Indicates readings taken from continuous chart from SWPC
GEOMAGNETIC FIELD: quiet July 11 and 13 unsettled July 12. Solar M-flare chance: 35% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 4 2 6 16:00 3 72 129
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
July 10, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 5.7 in the area of Guatemala City, Guatemala. The mainshock was felt in the Guatemala City area with IV in Chinautla, Mixco, V in Chimaltenango, Paramos, Petapa and Guatemala City; IV in Escuintla, Fraijanes, and II in La Libertad, El Salvador at Antiguo Cuscatlan and Nuevo Cuscatlan.
This earthquake caused landslides which resulted in damage and fatalities. Guatemala City
has about 3 million residents with extensive suburban areas which were affected.
News reports from Guatemala have now indicated that at least two were killed by
landslides and five more are known to have been buried by mud and landslides. Two of these have now been rescued.
At this time, statistics show more than 20 injured, 100 homes damaged with more than half
of those showing severe damage. Damage also affected nine health clinics, three schools,
a church and at least 14 roads. A number of hurricanes have begun near this
epicenter in the past two weeks. For example on July 2, this summary noted:
"A tropical cyclone may be forming south of Oaxaca, Mexico. This system is currently located at 15N 100W and moving to the WNW with winds up to 35 kts. It is not expected to enhance regional seismicity at this time. The antipode at 15S 80E is not highly seismic." (July 2, 2025)
This storm originated south of Chiapas and Guatemala late in June, 2025 as noted
in this summary at the time:
"A tropical cyclone may be forming south of Oaxaca, Mexico. This system is currently located at 14N 97W and moving to the WNW with winds up to 28 kts. It is not expected to enhance regional seismicity at this time. The antipode at 14S 83E is not highly seismic." (June 28, 2025)
The mainshock and many of the larger events in the swarm of earthquakes south
of Guatemala City have been occurring near local solar midnight and noon
and tidal stresses may be promoting these events. Among other aftershocks,
an M 4.3 was reported in Guatemala today as being felt in Antigua Guatemala with
intensity IV.
O: 10JUL2025 08:29:34 14.5N 90.7W ML=3.6 EMSC GUATEMALA
P: 9JUL2025 173540 15.0N 91.0W 3.5-5.1 AAAAA Guatemala
An unusual deep focus earthquake of M 5.1 occurred in northern Argentina today.
This event is at the antipode of Tropical Storm Danas and may have been promoted
by antipodal focused energy from that storm. In the previous issue of this summary
This had been considered a likely possibility at this time as:
"TS Danas (05W) continued today in the area off western Ryukyu Islands, Japan with winds up to 45 kts. It is expected to track to the southwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and the Ryukyu Islands and in the antipodal area of northern Argentina and Bolivia at 26S 64W. A moderate M 4.5 occurred north of Taiwan in the Ryukyu Islands today as this storm passed through the area. It is now expected to turn to the west and may enhance antipodal seismicity in northern Argentina, Bolivia and Chile in the next three days." (July 9, 2025)
O: 9JUL2025 19:11:58 27.2S 63.4W MW=5.1 EMSC SANTIAGO DEL ESTERO, ARGENTINA
P: 3JUL2025 173729 24.0S 64.0W 4.0-5.6 CCAAA Argentina
A moderate M 4.5 earthquake was widely felt in the New Delhi area of India today.
NEIC reported it was felt with maximum intensity VII at Hansi, Haryana, India and VI in Chandigarh, Ambala Cantonment, Beri, Farruknagar, Haryana; V in Deli at Gokalpur, Charkhi, Rohtak, IV in Delhi at Babarpur, Dilli Cantonment, Gharonda, Rshan Pura, Sultanpur Majra, Bahadurgarh, Dharughera, Gohana, Gurgaon, Jhajjar, Julana, Karnal, Kheri Sampla, Mahendragarh, Rewari, Pilani, Sikar, Dankaur, and Dhampur with intensity III as far as 250 km from the epicenter.
O: 10JUL2025 03:34:48 28.7N 76.6E MB=4.5 EMSC HARYANA - DELHI REGION, INDIA
P: 8JUL2025 173634 30.0N 82.0E 3.8-5.3 ABCAA Xizang
NEIC reported an earthquake of M 3.9 in the Dominican Republic was felt with intensity up to II-III in the area(s) of Dominican Republic near Punta Cana.
This event occurred within minutes of local solar midnight and may have been promoted by tidal stresses which maximize near this hour.
It occurred simultaneously with Solar Flare 5510 (M1.3) and may have been
promoted by SFE with that flare. Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5510 0410 0425 0438 M1.3 (July 9, 2025) 1.2E-02
Haiti M 3.6 04:40 UT
Antofagasta M 3.5 04:41 UT
A highly unusual earthquake was recorded in northeastern Brazil today. It was not
reported felt in the epicentral area by NEIC. The only earthquake within about
300 km of this epicenter with M>=4.3 in the past 35 years was an M 4.7 on April 3, 2025 and
today's event is an aftershock of that mainshock. At the time this summary noted:
"NEIC reported an earthquake of M 4.7 in Eastern Brazil was felt with intensity up to II-III in the area(s) of Eastern Brazil at Sete Lagoas Minas Gerais.
This earthquake is located at the sixth node (60 degrees) from the Reykjanes event
and at 120 from recent strong earthquakes in Tonga and New Zealand and at 144
degrees from the Myanmar M 7.7 of March 28 and was probably promoted by
energy input from all these quakes.
The last earthquake of M>=4.7 within about 400 km of this epicenter in Brazil
occurred more than 35 years ago." (April 3, 2025)
Today's event may have been promoted by a strong earthquake in Mindanao, Philippines
which is near the antipode of this event. The most recent in this series of
strong shocks in Mindanao occurred as an M 6.2 on June 24, 2025 with an aftershock of
M 6.1 on June 27, 2025. These epicenters in Mindanao at 5.3N 126.1E and 7.9N 129.8E are
within about 200 km of the exact antipode of the event in Brazil and represent
the largest earthquakes felt in the world in the past month.
O: 24JUN2025 01:58:05 7.9N 129.8E ML=6.2 EMSC MINDANAO, PHILIPPINES
O: 27JUN2025 23:07:10 5.3N 126.1E ML=6.1 EMSC MINDANAO, PHILIPPINES
O: 10JUL2025 00:03:50 5.8N 50.5W ML=4.3 EMSC BRAZIL
NEIC reported an earthquake of M 3.4 in Northern Nevada was felt with intensity up to II-III in the area(s) of Northern Nevada with II in Reno.
NEIC reported an earthquake of M 4.7 in South Island, New Zealand was felt with intensity up to II-III in the area(s) of South Island, New Zealand with III in Te Anau, Southland and II in Queenstown, Otago.
GeoNet reported the following parameters for this earthquake in South Island, New Zealand.
O: 09JUL2025 23:09:31 45.0S 166.2E MB=5.1 GEONET Felt with weak intensity in the area south of Te Anau, South Island. 91 reports of felt intensity came from the area east and north of the epicenter including 63 with weak intensity; 27 light; 1 moderate; 0 strong; 0 severe and 0 extreme.
This event in South Island, New Zealand occurred near local solar noon. A C1.7
solar flare (#5540) was near its peak output at the time this earthquake
occurred and may have promoted it by SFE. Data from SWPC for this flare follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5540 2252 2301 2305 C1.7 (July 9, 2025) 1.2E-03
Dodecanese Is, M 4.6 22:54 UT
South Island, New Zealand M 4.7 23:09 UT
NEIC reported an earthquake of M 4.6 in the Dodecanese Islands, Greece was felt with intensity up to II-III in the area(s) of the Dodecanese Islands, Greece with VI in the Kiklades at Kamarion and III in Emborion, Mesaria and Naxos.
This earthquake occurred near local solar midnight near the strongest
output of solar flare 5540 and may have been promoted by SFE from that flare.
Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5540 2252 2301 2305 C1.7 (July 9, 2025) 1.2E-03
Dodecanese Is, M 4.6 22:54 UT
South Island, New Zealand M 4.7 23:09 UT
NEIC reported an earthquake of M 5.0 in Tanzania was felt with intensity up to II-III in the area(s) of Tanzania with IV in Iguguno, Singida; III in Nkoaranga, and II in Arusha.
This event occurred within minutes of local solar midnight simultaneouly with
Solar flare 5530 (C1.3) and may have been promoted by SFE from this flare.
Data on this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5530 2201 2205 2209 C1.3 (July 9, 2025) 6.3E-04
Tanzania M 5.0 22:12 UT
Baja California M 3.3 22:07 UT
Talaud Is. M 3.9 22:03 UT
Chiapas M 3.8 22:01 UT
NEIC reported an earthquake of M 2.9 off the coast of Northern California was felt with intensity up to II-III in the area(s) of Northern California in Ferndale and Petrolia.
TROPICAL STORM DANAS (05W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DANAS 2025-07-10 00:00 UT 27.0N 117.7E 045 kts west of Ryukyu Islands
TS Danas (05W) continued today in the area off western Ryukyu Islands, Japan with winds up to 45 kts. It is expected to track to the southwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and the Ryukyu Islands and in the antipodal area of northern Argentina and Bolivia at 27S 63W. A moderate M 4.5 occurred north of Taiwan in the Ryukyu Islands today as this storm passed through the area. It is now expected to turn to the west and may enhance antipodal seismicity in northern Argentina, Bolivia and Chile in the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5490 0038 0053 0105 C2.4 (July 9, 2025) 3.2E-03
Cook Strait, N.Z. M 3.2 00:45 UT
5510 0410 0425 0438 M1.3 (July 9, 2025) 1.2E-02
Haiti M 3.6 04:40 UT
Antofagasta M 3.5 04:41 UT
5530 2201 2205 2209 C1.3 (July 9, 2025) 6.3E-04
Tanzania M 5.0 22:12 UT
Baja California M 3.3 22:07 UT
Talaud Is. M 3.9 22:03 UT
Chiapas M 3.8 22:01 UT
5540 2252 2301 2305 C1.7 (July 9, 2025) 1.2E-03
Dodecanese Is, M 4.6 22:54 UT
South Island, New Zealand M 4.7 23:09 UT
*Indicates readings taken from continuous chart from SWPC
GEOMAGNETIC FIELD: quiet July 10-11 unsettled July 12. Solar M-flare chance: 35% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 12 8 12:00 4 83 120
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude of V=18.39 was assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
A strong Gamma Ray Burst was recorded by SWIFT on June 28, 2025 at 00:55:56 UT (#250628A). A preliminary UVOT Magnitude of V>17.8 was assigned to this GRB.
July 9, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 5.7 in the area of Guatemala City, Guatemala. The mainshock was felt in the Guatemala City area with IV in Chinautla, Mixco, V in Chimaltenango, Paramos, Petapa and Guatemala City; IV in Escuintla, Fraijanes, and II in La Libertad, El Salvador at Antiguo Cuscatlan and Nuevo Cuscatlan.
This earthquake caused landslides which resulted in damage and fatalities. Guatemala City
has about 3 million residents with extensive suburban areas which were affected.
A foreshock of M 4.8 was reported felt in the Guatemala City area with VI in Micxo, Petapa, V in Santa Catain, Antigua Guatemala, IV in Guatemala City, Palencia, Villa Nueva, Sacatepequez, Panajachel and III in Fraijanes and Sacatepequez.
This is the strongest earthquake in the area of Guatemala City, Guatemala within about 150 km
since an M 5.8 on January 9, 2025. The last of significantly larger magnitude in the Guatemala City area was an M 6.1 on January 27, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.1 in Guatemala. NEIC reported it was felt with intensity up to VIII in Guatemala at Taxisco.
EMSC reported this earthquake was felt with strong intensity in Guatemala at Masagua, Vina Del Sur Fase II, Condominio Portal Del Bosque Li, Antigua, Colonia Pensativo, San Cristobal, Duenas, Candelaria, Colonia La Floresta, Aldea El Rosario and in El Salvador at Santa Tecla, San Salvador.
Initially there were reports of damage to building. Some damage may also have occurred
in El Salvador where the quake was also felt strongly according to local officials. Although it occurred at midnight,
wakened people fled from their buildings and houses. This earthquake occurred near local solar midnight and may have been promoted
by tidal stresses with the full moon as it occurred when tidal stresses are maximized (midnight) at a
longitude where tidal stresses were expected to be highest with this full moon as noted in this and previous summaries as:
"The full moon will arrive on January 25, 2024 at 17:54 UT. Longitudes which are sub-solar (local solar noon) are near 88 West longitude while those at local solar midnight are centered near 92 East longitude. In the west these include area of Central and northwestern South America and eastern U.S. and in the east areas of western Indonesia, Myanmar, Tajikistan and western China. These areas are most likely to see tidal triggering with this full moon. A moderately large to large tidally triggered earthquake is considered moderately likely with this full moon in the period January 22-30." (January 22-26, 2024)
Tropical Storm Anggrek had passed over the antipode of this earthquake on
January 24-25, 2024 and had been expected to trigger strong activity in
Guatemala at this time as noted at the time in this summary:
"TC ANGGREK 2024-01-24 00:00 UT 14.1S 91.1E 080 kts South of Sumatra, Indonesia
TC Anggrek (06S) continued today in the area south of Sumatra with winds up to 130 kts in the South Indian Ocean and moving to the south and east. Some enhanced seismicity in Sumatra may occur while this storm is in the area. The antipode of this storm is in Guatemala and El Salvador at 14N 89W. This is an active seismic zone and could see enhanced seismicity including a moderately strong earthquake as Anggrek is active at the antipode especially at this storm intensifies up to 130 kts around January 28, 2024." (January 24-27, 2024)
This is the strongest earthquake in Guatemala within about 150 km of this epicenter
since an M 6.2 on February 16, 2022. At that time this summary noted in this regard:
"The strongest earthquake in the world today was an M 6.2 in Southern Guatemala. NEIC reported it was felt with intensity VIII in Escuintla, Guatmala and VII in Mazatenango, Suchitepequez and V in San Francisco Zapotitlan with IV in San Pedro la Laguna, Acatenango, Chimaltenango, San Juan la Laguna, Solola, La Gomera, Escuintla and Atitlan, Solola; V in Retalhuleu, a
It was also felt with intensity IV in El Salvador, Chiapas, Mexico, Oaxaca, Mexico, Honduras, and Panama.
The mainshock in Guatemala was preceded by a moderate foreshock to the east in
El Salvador. NEIC reported this event was felt with intensity IV in El Salvador in Delgado and Llopango, San Salvador and III in Antiguo Cuscatlan, San Marcos and La Libertad.
This activity was likely promoted by high tidal stresses with the full moon .." (January 27, 2024)
The mainshock was followed by several moderate aftershocks including an M 4.8 which NEIC reported with intensity VIII in Guatemala City at Petapa and V in Guatemala City. Intensity V was also fel in Ciudad Vieja, Sacatepequezwith IV in Mixco, Santa Catarina, Villa Nueva, Antigua Guatemala and III in San Jose Pinula and Chichicatenango, Guatemala. Felt as far as San Salvador El Salvador.
This earthquake in Guatemala as well as events in San Francisco (see below)
and Peru today are near 103 degrees from the M 6.3 in Southern New Zealand
yesterday and may have been promoted by energy from that source (see map).
O: 8JUL2025 21:54:20 14.5N 90.7W MB=4.8 EMSC GUATEMALA
O: 09JUL2025 00:06:34 14.4N 90.7W ML=3.9 EMSC GUATEMALA
O: 08JUL2025 21:11:31 14.5N 90.7W Mw=4.8 EMSC GUATEMALA
O: 08JUL2025 21:41:32 14.5N 90.7W Mw=5.7 EMSC GUATEMALA
P: 9JUL2025 173540 15.0N 91.0W 3.5-5.1 AAAAA Guatemala
An earthquake of M 5.4 was felt south of Sumatra today. NEIC reported it was felt with intensity III in Pringsewu. Lampung, Indoesia and in Java at Karawang and Bekasi with intensity I-II.
EMSC reported it was felt with moderate intensity in Indonesia at Ciputat, Jakarta, Cileunyi.
BMG reported intensity III in Tanggamus at Cukuh Balak, Pematang sawa and Limau; in Pandeglang at Sumur, Cigeulis, Ptia, Sindangresmi, Soban and in in Kab Lebak. Also felt in Kat Kaur, Selatan, Tengah, Way Kanan, Pesawaran, Pringsewu, Tuland, Pesisir, Metro, Bogor, Sukabumi, Cianjur, Tasikmalaya, Ciamis, Banyurmas and Wonosoho.
The antipode of this epicenter is at 6N 76W in northern Columbia. This is an
active seismic area and could see a triggered antipodal event in the next
two days.
O: 8JUL2025 23:50:38 6.3S 104.8E MB=5.4 EMSC SUNDA STRAIT, INDONESIA
O: 09JUL2025 07:06:32 6.7S 105.1E ML=3.8 EMSC SUNDA STRAIT, INDONESIA
P: 5JUL2025 173523 6.0S 105.0E 4.0-5.6 BAAAA So. of Java
A triplet of moderate earthquakes hit the Admiralty Islands an the Bismarck Sea today.
These events of M 5.2, 5.2 and 5.3 were not reported in this remote region.
They are particularly interesting because they were accompanied by a pair
of moderate earthquakes within about 100 km of the exact antipode of the
Admiralty Islands events in the Central Mid-Atlantic. Readers can verify
this as the events in the Atlantic are at 3.1N 31.4W while those in the
Admiralty Islands are at 3.1S 147.4E with the following parameters. These
two series occurred several hour apart.
O: 8JUL2025 16:48:26 3.1N 31.4W MW=5.1 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 08JUL2025 14:50:36 3.1N 31.4W mb=4.9 EMSC CENTRAL MID-ATLANTIC RIDGE
P: 28JUN2025 173239 4.0N 32.0W 4.0-5.8 CAAAA Central Mid-Atlantic Ridg
O: 08JUL2025 17:11:56 3.0S 147.4E Mw=5.2 EMSC ADMIRALTY ISLANDS REGION, P.N.G.
O: 08JUL2025 17:22:04 3.0S 147.5E Mw=5.3 EMSC BISMARCK SEA
O: 8JUL2025 14:38:14 3.1S 147.5E MW=5.2 EMSC BISMARCK SEA
P: 9JUL2025 173518 3.0S 149.0E 4.0-5.4 AAAAA New Ireland
An earthquake of M 3.0 was felt widely in the region of San Francisco today. NEIC reported it with maximum intensity IV in California at La Honda, Felton, and San Jose with III in Loma Mar, Los Altos, San Francisco, Emeryville, San Rafael, Boulder Creek, Cupertino, Los Gatos, Santa Clara, Scotts Valley, Watsonville, San Jose and II in Menlo Park, Portola Valley, Mountain View, Redwood City, Sunnyvale, San Francisco, Palo Alto, Stanford, Palo Alto, San Mateo, Alviso, Ben Lomond, Campbell, Los Gatos, Milpitas, Santa Clara, Santa Cruz, Saratoga, San jose, Willits and Lake Tahoe and as far as Nevada.
This earthquake occurred near local solar noon and adds to a growing number
of recent events near solar noon or solar midnight in the area of San Francisco.
These have probably been promoted by tidal stresses which maximize near this hour.
A strong solar flare near this time could also help promote stronger earthquakes
in this series. The last earthquake of significantly larger magnitude within
about 100 km of this epicenter was an M 3.9 on March 18, 2025. At the time
this summary noted:
"A series of aftershocks followed an M 3.8-3.9 in the San Francisco Bay area of California today.
NEIC received more than 12,00 felt reports from the generl public from people
who had felt the mainshock. Maximum intensity was reported at IV in Alamo, Pleasant Hill, Hayward, Castro Valley, Fremont, San Lorenzo, San Ramon, Union Cy, Pleasanton, Mill Valley, Boulder Creek with III in Bribane, Burlingame, Daly City, Half Moon Bay, La Honda, Atherton, Millbre, Moss Beach, Pacifica, Redwood City, San Bruno, South San Francisco, San Francisco, Sunnyvale, San Mateo, Alameda among others.
EMSC reported heavy long shaking in California at Dublin, Castro Valley, Hayward, Pleasanton, San Ramon, Union city, San Leandro, Oakland, Fremont, Walnut Creek, Concord, Emeryville, Menlo Park, San Mateo, Pittsburg, Belmont, San Francisco, Sausalito.
It probably occurred on the Hayward Fault. An M 3.6 hit this same area a month
ago on February 13, 2025 as noted in this summary at the time:
"A series of light earthquakes was also felt in the San Francisco Bay area of California today. The strongest of
these were of M 3.6, 3.3 and 3.2 on the Hayward Fault passing through Hayward, California. NEIC reported these earthquakes were felt with intensity IV in Los Altos, Hayward, Berkeley, Mount Hamilton, Ione, and III in Belmont, Burlingame, Los Altos, Mountain View, Synnyvale, San Francisco, San Mateo, Alameda, Concord, Fremont, Castro Valley, Moraga, Newark, Orinda, Plesanton, Dublin, San Leandro among others.
These began with an M 2.7 felt with intensity III in Hayward, Burlingame, Livermore among other communities in central California.
NEIC reported an aftershock of M 2.4 was felt with intensity VI in California in Hayward, Castro Valley, San Lorenzo, and III in Belmont, Burlingame, Los Altos, Moss Beach, Mountain View, Redwood City, San Carlos, San Francisco, Palo Alto, San Mateo, Danville, Concord, Pleasant Hill, El Cerrito, Fremont and as far as Carlsbad, Ludlow and Los Angeles in the southland.
NEIC reported in the north an M 2.3 near Clayton, California was felt in San Francisco and Concord; an M 2.5 with intensity III in San Francisco, Clayton, Fort Bragg and II in Pleasant Hill, Martinez, Orinda, San Ramon, Walnut Creek, Oakland, Concord.
An M 2.4 near Bayview-Montalvin, California was reported by NEIC to have been lightly felt with intensity II in California at Pleasanton and Petaluma.
Like many series in the San Francisco area, this began within minutes of local
Solar Noon, a time when tidal stresses with the full moon are maximized.
The strongest of these occurred of M 3.1 and M 3.2 near local solar noon and was probably promoted
by tidal stresses which maximize near this hour with the full moon." (February 14, 2025)
Several aftershocks were also widely felt in the San Francisco area of California.
The last earthquake of M>=3.9 within about 100 km of today's epicenter occurred
as an M 3.9 on Novenber 17, 2021 and an M 4.1 on June 2, 2022 to the north
of today's epicenter. At the time of the November, 2021 event (which like today's
event occurred with a full moon) this summary noted:
"A moderate earthquake of M 3.9-4.0 shook most of the San Francisco, California area today. It was reported by NEIC with intensity IV in Danville, San Ramon, Diablo, Castro Valley, Dublin, Castro Valley, Alamo and Clayton among others.
An aftershock in the San Francisco Bay area of California of M 2.7 was felt with intensity II-III in Danville, San Ramon, Dublin, Castro Valley, Pleasanton, Walnut Creek and Boraga among others.
The press reported only minor damage was associated with this earthquake and there
were no reported major damage or casualties. This earthquake occurred within
minutes of local solar noon, a time when tidal stresses maximize and was
probably promoted by these stresses. It is also located near the longitude
of maximum stress with the current full moon (see above).
It is also near the antipode of an M 6.0 which occurred in the southern
Indian Ocean on November 15. This summary had noted this relation
(the Indian Ocean quake was at 37.6S, the San Francisco quake at 37.8N)
...
The last earthquake of larger magnitude than M 3.9 in the area of San Francisco
was an M 4.5 on October 15, 2019 and an M 4.3 on July 16, 2019. An earthquake of
M 3.9 hit near this epicenter on June 29, 2021." (November 17, 2021, March 18, 2025)
NEIC reported an aftershock of M 2.6 in San Francisco, California was felt with intensity up to II-III in the area(s) of San Francisco, California with III in La Honda, Los Altos, Redwood City, Palo Alto, Cupertino, Saratoga, and II in Mountain View, Sunnyvale, Palo Alto, Stanford, Santa Clara, San Jose.
The earthquake in San Francisco followed 5 minutes 22 seconds after the M 4.8
foreshock in Guatemala City, Guatemala. The p-phase from Guatemala arrived at 6 minutes 40 seconds in the area of San Francisco and
could not have triggered the San Francisco quake at a distance of 36 degrees from Guatemala. Both these and the mainshock
in Guatemala and an M 4.4 in Peru, however may have been triggered by
some other regional stress at that time.
O: 8JUL2025 21:16:53 37.3N 122.2W ML=2.9 EMSC NORTHERN CALIFORNIA
O: 08JUL2025 22:56:25 37.3N 122.1W MD=2.6 EMSC SAN FRANCISCO BAY AREA, CALIF.
P: 9JUL2025 173582 37.2N 122.1W 2.5-4.5 AAAAA Central California
NEIC reported an earthquake of M 2.9 in Parkfield, California was felt with intensity up to II-III in the area(s) of Parkfield, California at Visalia.
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 in Petrolia.
NEIC reported an earthquake of M 2.5 in Puget Sound, Washington was felt with intensity up to II-III in the area(s) of Puget Sound, Washington in Port Townsend, Washington and Victoria, British Columbia.
NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska with II in Anchorage, Chugiak, Eagle River, Wasilla and Willow.
NEIC reported an earthquake of M 5.0 in Central Peru was felt with intensity up to II-III in the area(s) of Central Peru in Ica at Pisco with IV; III in Ica and Santa Maria Lima; II in Lima at Lima, Imperial, Mala, San Luis.
EMSC reported light shaking in Peru at Santiago de Surco, Cieneguilla, San Isidro, Carmen De La Legua, Reynoso, Independencia.,
NEIC reported an earthquake of M 4.1 in Kazakhstan was felt with intensity up to II-III in the area(s) of Kazakhstan at Taraz and in Biskek, Kyrgyzstan.
EMSC reported moderate shaking in Kazakhstan at Lugovoy, Merke, Oytal, Sarykemer, Taraz, Zhangatas, Georgiyevka, Almaty and in Kyrgyzstan at Kaindy, Sokuluk, Bishkek, Lebedinovka, among others.
EMSC reported an earthquake of M 4.0 in Jalisco, Mexico was felt with intensity up to IV in the area(s) of Jalisco, Mexico at Puerto Vallarta.
EMSC reported an earthquake of M 4.6 in Ecuador was felt with intensity up to IV in the area(s) of Ecuador in Tutamandahostel.
EMSC reported an earthquake of M 4.0 in Greece was felt with intensity up to IV in the area(s) of Greece at Argostolion.
BMG reported an earthquake of M 5.4 in the Tanimbar region was felt with intensity up to III in the area(s) of Kep. Tanimbar in Maktian, Tanimbar, Yaru, Labobar, Nirunmas, Molu Maru and in Kab. Tual at Tayando Tam. Also felt in Seram and Maluku.
GeoNet reported the following parameters for an M 4.5 near Snares Island, New Zealand, today.
O: 09JUL2025 05:34:17 47.1S 165.9E ML=4.5 GEONET Felt with weak intensity by 2 persons.
TROPICAL STORM DANAS (05W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DANAS 2025-07-09 00:00 UT 27.9N 120.7E 045 kts west of Ryukyu Islands
TS Danas (05W) continued today in the area off western Ryukyu Islands, Japan with winds up to 45 kts. It is expected to track to the southwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and the Ryukyu Islands and in the antipodal area of northern Argentina and Bolivia at 26S 64W. A moderate M 4.5 occurred north of Taiwan in the Ryukyu Islands today as this storm passed through the area. It is now expected to turn to the west and may enhance antipodal seismicity in northern Argentina, Bolivia and Chile in the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5400 0010 0018 0025 C1.9 (July 8, 2025) 1.4E-03
Sumatra M 3.1 00:17 UT
Mongolia M 3.5 00:22 UT
Argentina M 3.9 00:10 UT
5410 0148 0156 0201 C1.9 (July 8, 2025) 1.5E-03
Ryukyu Is. M 4.1, 4.7 02:00, 02:01 UT
5430 0342 0417 0437 M2.4 (July 8, 2025) 4.7E-02
India M 4.2 03:52 UT
Colorado M 2.3 04:40 UT
Sunda Strait M 3.7 04:42 UT
El Salvador M 3.6 04:05 UT
5440 0600 0609 0614 C1.5 (July 8, 2025) 1.2E-03
5480 2027 2040 2045 C1.6 (July 8, 2025) 1.7E-03
Banda Sea M 4.4 20:38 UT
Oaxaca M 3.5 20:43 UT
Michoacan M 4.0 20:52 UT
*Indicates readings taken from continuous chart from SWPC
GEOMAGNETIC FIELD: quiet July 9-11. Solar M-flare chance: 35% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 13 19 13 19:00 5 88 115
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude of V=18.39 was assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
A strong Gamma Ray Burst was recorded by SWIFT on June 28, 2025 at 00:55:56 UT (#250628A). A preliminary UVOT Magnitude of V>17.8 was assigned to this GRB.
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).
July 8, 2025
Notable earthquakes and events:
A strong earthquake of M 6.3 occurred today in the Snares Island region south of South Island, New Zealand. NEIC reported it was felt with intensity up to V in Southland, New Zealand at Wallacetown and IV in Invercargill and III in Te Anau and Queenstown, Otago with lesser shaking in Dunedin, Wyndham. No tsunami was expected nor observed.
GeoNet reported it with M up to M 6.7 with the following parameters:
O: 07JUL2025 12:53:41 47.3S 165.5E ML=6.7 GEONET Felt weakly by 564 and lightly by 545 respondents , with moderate shaking by 86, Strong 2 and severe 1 in Southern South Island and in Snares Island, New Zealand.
O: 07JUL2025 14:14:32 47.3S 165.8E ML=4.8 GEONET Not immediately reported felt.
O: 07JUL2025 15:07:46 47.3S 165.6E ML=4.3 GEONET Felt with weak intensity by 4 persons.
The M 4.3 aftershock was felt with weak intensity by 4 persons.
This is the strongest earthquake in the Snares Island area within about 200 km
since an M 6.7 on March 25, 2025 and is the strongest aftershock of that event to date. At the time this summary noted:
"A major earthquake occurred with M 6.8-7.0 off the southern coast of South Island, New Zealand today.
GeoNet noted that 4726 reports of felt events were made of which 2318 reported weak and 1895 light intensity with 440 reports of moderate shaking and 63 with strong and 3 severe and 6 with extreme intensity came from the area. Strong currents were expected with this earthquake by GeoNet.
NEIC reported it was felt widely in Australia and New Zealand. Intensity V was reported at Tuatapere, Southland, New Zealand with IV as far as 1300 km north in Auckland and closer to the epicenter in Otago at Queenstown, Otago, Roxburgh, and in Southland at Bluff, Invercargill, Mamapouri, and Te Anau. Intensity III was reported in Australia at Queensland at Toowoomba, Ulverstone and in Otago and Southland, New Zealand at Arrowtown, Wanaka, Gore, Clyde, with II in Cromwell, Dunedin, Milton, Lumsden and Nelson.
EMSC reported long, hard shaking in Invercargill, New Zealand. An aftershock of M 5.5 followed. The earthquake occurred within minutes of local
solar noon, a time when geomagnetic sudden commencement storms and tidal stresses
maximize their effects on earth systems and that may have been the case in
this situation. A strong geomagnetic storm was in progress when the event
occurred and tidal stresses are strong with the upcoming full moon and eclipse
of March 29, 2025.
Earthquakes of M>=7 often trigger tsunamis but the tectonics of this region
suggest that such a tsunami would be minor if it occurred. News reports suggested
fear of a tsunami but did not indicate a tsunami had occurred.
This may have been promoted by the strong geomagnetic storm currently in progress
...
The last earthquake within about 250 km of today's epicenter in New Zealand
with magnitude equal or larger than M 6.7 occurred on July 15, 2009 with M 7.7.
Other such events in the past 35 years have hit the area on November 22, 2004 (M 7.0-7.1), August 21, 2003 (M 7.0)
and August 10, 1993 (M 7.0). At the time of the M 7.7 on July 15, 2009 this
summary noted:
"A very strong earthquake of M 7.6 hit off the southwest coast of New Zealand today
in the Fiordland region of South Island. It was followed later in the day
by an M 6.1 in the region of New Ireland, P.N.G. There were no reports of
damage or casualties in New Ireland where the quake hit southwest of
the town of Kavieng according to AFP. The New Zealand earthquake was felt strongly
on South Island and caused minor damage but no major damage or casualties
according to initial reports. It was followed by at least 10 moderate to
strong aftershocks of M 5.2, 5.4, 5.2 and 5.8 which were generally fel with
intensity up to IV for the larger and IV-V for the more moderate events
in general at Invercargill and Gore, New Zealand. An M 5.4 aftershock off the
coast was reported felt with intensity VI at Te Anau. A foreshock
about 100 km to the northeast occurred on July 12 with M 4.0 in the Haast
area according to GeoNet and was reported on here. GeoNet initially reported
the earthquake as an M 6.6 but revised the moment magnitude to M 7.8 later.
That agency reported the earthquake was widely felt in the South Island and
as far north as Taranaki. An aftershock about 20 minutes after the mainshock
of M 5.8-6.1 was also felt on the southern South Island according to GeoNet.
NEIC reported maximum intensity VI at Tuatapere and Te Anau, Southland, N.Z. with intensity
V at Bluff, Edendale, Greymouth, Lumsden, and Winton, Southland, N.Z. Intensity
IV was reported generally within about 200 km but as far as 600 km from the epicenter at Wyndham, Westport, Wanaka,
Stirling, Riversdale, Queenstown, Outram, Invercargill, Balclutha and Arrowtown.
Lesser intensities were felt on North Island as far as Auckland 1200 km to the
north and in Sydney, Australia nearly 2000 km to the northwest. The M 5.8-6.1
aftershock was also reported felt with intensity VI at Tuatapere and IV at Queenstown,
Otago as well as within about 500 km of the epicenter. A tsunami alert was
issued but the maximum size of the tsunami thus far reported was about 20 cm.
At Jackson Bay and Bluff the tsunami arrived about 30 minutes after the quake and measured
about 17 cm. The tsunami was also observed across the Tasman Sea in Sydney. The
Australian Bureau of Meteorology reported a tsunami was felt along the coast
in New South Wales, Victoria, Tasmania, Lord Howe and Norfolk Island and
several waves and strong currents were detected mostly with heights of 20-30 cm.
Tsunamis in this area are generally not large and seldom are
damaging. Some power outages occurred with the quake. There were some reports
of downed power and phone lines in east Invercargill and Otatara and cracks in houses at Invercargil and Wanaka. Residents
in Queenstown ran into the streets in panic. The quake was described as
strong and rolling motion. It is quite possible that the quake added stress
to other faults along the Alpine Fault system bringing some closer to rupture.
A major break on the Alpine fault may be overdue and could come sooner rather
than later following today's earthquake. A strong earthquake hit the same region on August
22, 2003 with M 7.1. It caused significant landslides in part of South Island.
Similar earthquakes of M 7.0-7.1 hit the region on August 10, 1993 and November
22, 2004 but this is apparently the strongest earthquake in the region since
an M 8.0 in 1826, although the magnitude of that event is questionable.
This is the second largest earthquake to occur in the 500 year history of
New Zealand. The largest was an M 8.2 which hit in 1855 and killed eight
in the area of Wellington and Wairarapa. A similar M 7.8 hit in Hawke's Bay 78 years
ago and killed 256 people. The entire city of Napier was flattened. In 1929 an M 7.8
earthquake hit Buller killing 15 people." (March 25, 2025)
The earthquake of M 6.7 in southern New Zealand on March 25, 2025 kicked off
a series of major earthquakes around the world, the last such series. This
could occur again in the next week as a three month quiet in global seismicity
is rare.
The mainshock occurred with several minutes of local solar midnight and
may have been promoted by tidal and/or geomagnetic effects which maximize near
this hour.
O: 07JUL2025 12:53:41 47.2S 165.5E ML=6.3 NEIC SOUTHERN NEW ZEALAND
O: 07JUL2025 12:53:41 47.2S 165.5E ML=6.7 GeoNet SOUTHERN NEW ZEALAND
O: 07JUL2025 14:14:52 47.3S 165.8E ML=4.8 GeoNet SOUTHERN NEW ZEALAND
O: 07JUL2025 15:07:46 47.3S 165.6E ML=4.3 GEONET Southern New Zealand
Possible far-field triggering areas from Snares Island, New Zealand follow.
At this early point the most active nodes appear to be the sixth and seventh
but this can change. Nodal earthquakes which have already occurred in the
first day after the New Zealand quake are denoted with given magnitude.
The magnitude of the mainshock (M 6.3-6.7) suggests limited far-field
activity mostly limited low to moderate magnitudes, but some large events
may occur in the next month. The following listing of possible far-field
aftershock locations was published in this summary on March 25, 2025.
Antipodal (~180 degrees)
Snares Is. to North Atlantic, Azores (M 4.4),
Outer shadow zone edge (141-148 degrees)
Snares Is. to Greece, Crete, Western Turkey, NE U.S., Quebec (M 2.6),
Node 8 (135 degrees)
Snares Is. Guadeloupe (M 5.0), Eastern Turkey,
Node 3 (120 degrees)
Snares Is. to Yellowstone, Kansas (M 2.6), Oklahoma, Western Montana, Iran, Tajikistan (M 4.2), Afghanistan,
P- and S- shadow zone edge and node 7 (101-110 degrees)
Snares Is. to northern Peru (M 4.0), Mexico, Alaska Peninsula, Gulf of California (M 3.4), Chiapas, Guerrero, Mexico (M 3.8), Panama, Central Nepal, Western Xizang (M 4.3), China, Kamchatka, Central, Southern California (M 3.5), Tarapaca, Chile (M 5.4), .
Node 4 (90 degrees)
Snares Is. to Honshu, Japan, Central Chile, Eastern China, Yunnan (M 4.2), Rat Is, Hokkairo M 4.4),
Node 5 (72 degrees)
Snares Is. to Sumatra, Nicobar Is, Mentawai, Indonesia, East Pacific, Magallanes, Chile (M 4.4, 3.2, 3.1, 3.1), South Sandwich Is. (M 5.3),
Node 6 (60 degrees)
Snares Is. to Central Indonesia, Celebes Sea (M 4.9), Java (M 4.6), Mindanao, Philippines (M 3.5),
Node 7 (52 degrees)
Snares Is. to Banda Sea M 5.0), Eastern Indonesia, New Guinea
Node 8 (45 degrees)
Snares Is. Is. to New Ireland New Guinea, Samoa,
The strongest earthquake in the U.S. or Canada today was an M 4.3 in the Unimak Island area of Alaska. NEIC did not report any felt reports with this event.
NEIC reported an earthquake of M 2.6 in Southern California was felt with intensity up to II-III in the area(s) of Southern California with III in Descanso, El Cajon, Santa Ysabel and II in Alpine, Spring Valley, Carlsbad, Escondido, Julian, Poway, Ramona, Santee, and Fullerton.
NEIC reported an earthquake of M 2.5 in Western Texas was felt with intensity up to II-III in the area(s) of Western Texas with IV in Rotan.
NEIC reported an earthquake of M 4.4 in Taiwan was felt with intensity up to II-III in the area(s) of Taiwan with III in Hsinchu and Taipei.
NEIC reported an earthquake of M 3.9 in Denali National Park, Alaska was felt with intensity up to II-III in the area(s) of Denali National Park, Alaska at Matanuska-Susitna Borough with IV and III in Talkeetna.
NEIC reported earthquakes of M 2.6 and M 3.2 in San Clemente Is. Southern California were felt with intensity up to II-III in the area(s) of San Clemente Is. Southern California with III in Escondido and II in San Diego.
EMSC reported an earthquake of M 4.2 in Assam, India was felt with intensity up to IV in the area(s) of Assam, India at Hojai, Raha, Tezpur, Itanagar.
EMSC reported an earthquake of M 5.0 in Crete, Greece was felt with intensity up to IV in the area(s) of Crete, Greece at Palekastro, Sitia, Karpathos, Ierapetra, Kato Gouves, Kokkini Chani, Nea Alikarnassoa, Iraklion, Agioi Theodoroi, Gazi, Gennadi, Faliraki, Palaio Faliro.
EMSC reported an earthquake of M 3.9 in Southern Greece was felt with intensity up to IV in the area(s) of Southern Greece at Varvasaina, Pyrgos, Myrtia, Katakolo, Lechaina, Patra.
TROPICAL STORM MUN (DEPRESSION 04W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MUN 2025-07-08 00:00 UT 39.3N 149.1E 035 kts east of Honshu, apan
TS MUN (TD 04W) continued today in the area off north-eastern Honshu, Japan with winds up to 35 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time but minor enhancement in Hokkaido and the Kuril Islands is possible at this time. The antipode is at 39S 31W in the South Atlantic area and is not seismic.
TROPICAL STORM DANAS (05W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DANAS 2025-07-08 00:00 UT 27.9N 122.0E 045 kts west of Ryukyu Islands
TS Danas (05W) continued today in the area off western Ryukyu Islands, Japan with winds up to 45 kts. It is expected to track to the northwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and the Ryukyu Islands and in the antipodal area of northern Argentina and Bolivia at 27S 60W. A moderate M 4.5 occurred north of Taiwan in the Ryukyu Islands today as this storm passed through the area. It is now expected to turn to the west and may enhance antipodal seismicity in northern Argentina, Bolivia and Chile in the next three days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0330 0410 0510 M3.0 (July 8, 2025) 5.7E-02*
Assam India, M 4.2 03:52 UT
Hokkaido M 4.0 04:45 UT
5280 0346 0354 0413 C1.5 (July 7, 2025) 2.1E-03
5320 0714 0722 0727 C1.0 (July 7, 2025) 7.6E-04
Java M 4.4 07:32 UT
Kermadec Is. M 4.4 07:38 UT
5330 1052 1109 1113 C1.4 (July 7, 2025) 1.9E-03
5340 1113 1120 1126 C1.6 (July 7, 2025) 1.4E-03
5360 1410 1423 1438 C1.3 (July 7, 2025) 2.1E-03
Southern Greece M 3.9 14:29 UT
5370 1625 1634 1640 C1.8 (July 7, 2025) 1.4E-03
Fiji M 4.6 16:25 UT
5380 1909 1920 1929 C2.9 (July 7, 2025) 2.8E-03
New Zealand M 3.7 19:16 UT
Gulf of California M 3.2 19:32 UT
5390 2049 2110 2119 C3.5 (July 7, 2025) 4.7E-03
5420 2119 2121 2123 C3.5 (July 7, 2025) 1.4E-03
*Indicates readings taken from continuous chart from SWPC
GEOMAGNETIC FIELD: unsettled July 8 quiet July 9-10. Solar M-flare chance: 10% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 22 22 20 02:00 5 111 118
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
July 7, 2025
Notable earthquakes and events:
A strong earthquake of M 6.3 occurred today in the Snares Island region south of South Island, New Zealand. NEIC reported it was felt with intensity up to V in Southland, New Zealand at Wallacetown and IV in Invercargill and III in Te Anau and Queenstown, Otago with lesser shaking in Dunedin, Wyndham. No tsunami was expected nor observed.
GeoNet reported it with M up to M 6.7 with the following parameters:
O: 07JUL2025 12:53:41 47.3S 165.5E ML=6.7 GEONET Felt weakly by 564 and lightly by 545 respondents , with moderate shaking by 86, Strong 2 and severe 1 in Southern South Island and in Snares Island, New Zealand.
O: 07JUL2025 14:14:32 47.3S 165.8E ML=4.8 GEONET Not immediately reported felt.
This is the strongest earthquake in the Snares Island area within about 200 km
since an M 6.7 on March 25, 2025 and is the strongest aftershock of that event to date. At the time this summary noted:
"A major earthquake occurred with M 6.8-7.0 off the southern coast of South Island, New Zealand today.
GeoNet noted that 4726 reports of felt events were made of which 2318 reported weak and 1895 light intensity with 440 reports of moderate shaking and 63 with strong and 3 severe and 6 with extreme intensity came from the area. Strong currents were expected with this earthquake by GeoNet.
NEIC reported it was felt widely in Australia and New Zealand. Intensity V was reported at Tuatapere, Southland, New Zealand with IV as far as 1300 km north in Auckland and closer to the epicenter in Otago at Queenstown, Otago, Roxburgh, and in Southland at Bluff, Invercargill, Mamapouri, and Te Anau. Intensity III was reported in Australia at Queensland at Toowoomba, Ulverstone and in Otago and Southland, New Zealand at Arrowtown, Wanaka, Gore, Clyde, with II in Cromwell, Dunedin, Milton, Lumsden and Nelson.
EMSC reported long, hard shaking in Invercargill, New Zealand. An aftershock of M 5.5 followed. The earthquake occurred within minutes of local
solar noon, a time when geomagnetic sudden commencement storms and tidal stresses
maximize their effects on earth systems and that may have been the case in
this situation. A strong geomagnetic storm was in progress when the event
occurred and tidal stresses are strong with the upcoming full moon and eclipse
of March 29, 2025.
Earthquakes of M>=7 often trigger tsunamis but the tectonics of this region
suggest that such a tsunami would be minor if it occurred. News reports suggested
fear of a tsunami but did not indicate a tsunami had occurred.
This may have been promoted by the strong geomagnetic storm currently in progress
...
The last earthquake within about 250 km of today's epicenter in New Zealand
with magnitude equal or larger than M 6.7 occurred on July 15, 2009 with M 7.7.
Other such events in the past 35 years have hit the area on November 22, 2004 (M 7.0-7.1), August 21, 2003 (M 7.0)
and August 10, 1993 (M 7.0). At the time of the M 7.7 on July 15, 2009 this
summary noted:
"A very strong earthquake of M 7.6 hit off the southwest coast of New Zealand today
in the Fiordland region of South Island. It was followed later in the day
by an M 6.1 in the region of New Ireland, P.N.G. There were no reports of
damage or casualties in New Ireland where the quake hit southwest of
the town of Kavieng according to AFP. The New Zealand earthquake was felt strongly
on South Island and caused minor damage but no major damage or casualties
according to initial reports. It was followed by at least 10 moderate to
strong aftershocks of M 5.2, 5.4, 5.2 and 5.8 which were generally fel with
intensity up to IV for the larger and IV-V for the more moderate events
in general at Invercargill and Gore, New Zealand. An M 5.4 aftershock off the
coast was reported felt with intensity VI at Te Anau. A foreshock
about 100 km to the northeast occurred on July 12 with M 4.0 in the Haast
area according to GeoNet and was reported on here. GeoNet initially reported
the earthquake as an M 6.6 but revised the moment magnitude to M 7.8 later.
That agency reported the earthquake was widely felt in the South Island and
as far north as Taranaki. An aftershock about 20 minutes after the mainshock
of M 5.8-6.1 was also felt on the southern South Island according to GeoNet.
NEIC reported maximum intensity VI at Tuatapere and Te Anau, Southland, N.Z. with intensity
V at Bluff, Edendale, Greymouth, Lumsden, and Winton, Southland, N.Z. Intensity
IV was reported generally within about 200 km but as far as 600 km from the epicenter at Wyndham, Westport, Wanaka,
Stirling, Riversdale, Queenstown, Outram, Invercargill, Balclutha and Arrowtown.
Lesser intensities were felt on North Island as far as Auckland 1200 km to the
north and in Sydney, Australia nearly 2000 km to the northwest. The M 5.8-6.1
aftershock was also reported felt with intensity VI at Tuatapere and IV at Queenstown,
Otago as well as within about 500 km of the epicenter. A tsunami alert was
issued but the maximum size of the tsunami thus far reported was about 20 cm.
At Jackson Bay and Bluff the tsunami arrived about 30 minutes after the quake and measured
about 17 cm. The tsunami was also observed across the Tasman Sea in Sydney. The
Australian Bureau of Meteorology reported a tsunami was felt along the coast
in New South Wales, Victoria, Tasmania, Lord Howe and Norfolk Island and
several waves and strong currents were detected mostly with heights of 20-30 cm.
Tsunamis in this area are generally not large and seldom are
damaging. Some power outages occurred with the quake. There were some reports
of downed power and phone lines in east Invercargill and Otatara and cracks in houses at Invercargil and Wanaka. Residents
in Queenstown ran into the streets in panic. The quake was described as
strong and rolling motion. It is quite possible that the quake added stress
to other faults along the Alpine Fault system bringing some closer to rupture.
A major break on the Alpine fault may be overdue and could come sooner rather
than later following today's earthquake. A strong earthquake hit the same region on August
22, 2003 with M 7.1. It caused significant landslides in part of South Island.
Similar earthquakes of M 7.0-7.1 hit the region on August 10, 1993 and November
22, 2004 but this is apparently the strongest earthquake in the region since
an M 8.0 in 1826, although the magnitude of that event is questionable.
This is the second largest earthquake to occur in the 500 year history of
New Zealand. The largest was an M 8.2 which hit in 1855 and killed eight
in the area of Wellington and Wairarapa. A similar M 7.8 hit in Hawke's Bay 78 years
ago and killed 256 people. The entire city of Napier was flattened. In 1929 an M 7.8
earthquake hit Buller killing 15 people." (March 25, 2025)
The earthquake of M 6.7 in southern New Zealand on March 25, 2025 kicked off
a series of major earthquakes around the world, the last such series. This
could occur again in the next week as a three month quiet in global seismicity
is rare.
The mainshock occurred with several minutes of local solar midnight and
may have been promoted by tidal and/or geomagnetic effects which maximize near
this hour.
O: 07JUL2025 12:53:41 47.2S 165.5E ML=6.3 NEIC SOUTHERN NEW ZEALAND
O: 07JUL2025 12:53:41 47.2S 165.5E ML=6.7 GeoNet SOUTHERN NEW ZEALAND
O: 07JUL2025 14:14:52 47.3S 165.8E ML=4.8 GeoNet SOUTHERN NEW ZEALAND
The strongest earthquake in the U.S. or Canada today was an M 4.5 in the Pearl and Hermes Atoll region of Hawaii. It was not reported felt in this remote area of the Northern Pacific.
This event occurred within an hour of local solar noon and may have been promoted
by tidal stresses which maximize near this hour. It occurred about 2500 km northwest
of the Island of Hawaii. This is a very unusual epicenter. It is at the far
western end of the Hawaii seamounts before they turn north and is not
defined by an specific tectonics. NEIC has not identified any earthquakes of M>=3
within about 500 km of this epicenter in at least 35 years, making it a highly
significant regional event.
O: 07JUL2025 00:27:15 27.2N 175.2W ML=4.5 NEIC PEARL AND HERMES ATOLL REGION, HAWAII
An M 5.5 ocurred directly south of the event in Hawaii four hours earlier than that event. This event of M 5.5 in Tonga was reported by NEIC to likely have been felt with intensity up to IV in the epicentral area.
O: 06JUL2025 20:31:43 21.0S 174.4W ML=5.5 NEIC TONGA
A moderately stron M 5.4 als occurred today in Northern Peru. NEIC reported it was felt with intensity IV in Rioja, San Martin and lightly in the Lima area.
This epicenter is near the antipode of the M 5.5 in the Nicobar Islands earlier
in the day and may have been promoted by focused energy from that source.
Readers and verify the near-antipodal nature of these events. The data from
NEIC is:
O: 06JUL2025 11:27:44 5.5S 77.0W ML=5.5 NEIC NORTHERN PERU
O: 05JUL2025 19:42:20 6.3N 95.1E ML=5.5 NEIC NICOBAR ISLANDS
The last earthquake within about 200 km of this epicenter in Northern Peru with
M>=5.4 occurred as an M 6.5 on February 3, 2022. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.5 in northern Peru. IGP reported this earthquake with M 6.8. This is an aftershock of the M 7.5 at this epicenter of November 28, 2021. NEIC reported this earthquake was felt with maximum intensity VI in Peru at Tarapoto San Martin and V in Loja, Ecuador and in Peru at Chachapoyas, La Peca, Amazonas, Yurimaguas and Barranca, Loreto, with lesser shaking in Requena, Peru and in Ecuador at Cuenca Azuay, Cariamanga, Loja and Zaruma El Oror.
IGP reported intensity VI in the area of the epicenter north and east including Amazonas,m Loreto, San Martin, Cajamarca, Piura, Lambayeque, Peru.
An M 4.0 northwest of this preceded the M 6.5. NEIC reported this event was felt with intensity III in Cuenca Azuay, Ecuador.
It is likely that the strong geomagnetic storm today helped to trigger this earthquake
...
It is also likely that the M 6.5 in Peru was enhanced by tidal stresses. Today's earthquake in Peru also occurred within about an hour of local solar noon
near the longitude of maximum tidal stress with the new moon of February 1 as noted in previous issues of this summary:
Today's event of M 6.5-6.8 is the strongest aftershock to date of the M 7.5
of November 28, 2021." (February 3, 2022)
Strong volcanic eruptions also occurred today in Japan in addition to the
continuing eruption and moderately strong earthquakes in the northern Ryukyu Islands, ati Shinmoe-dake
and in Indonesia at Lewptpbo Laki Laki. Both had major ash clouds and disrupted
local air traffic. Areas have been restricted to traffic at this time.
NEIC reported an earthquake of M 4.7 in Costa Rica was widely felt with intensity up to II-III in the area(s) of Costa Rica with IV in Grecia, Santa Cruz, Asuncion, Angeles, Parrita, Escazu, San Felipe, San Jose and III in Alajuela Atenas, Esquipulas, Naranjo, Pital, Sabanilla, San Ramon, Tigra, Tobosi, Juntas, Heredia, San Francisco, Limon, Esparta, Jaco, Paquera, Quepos, Concepcioin, Desamparados, Ipis, San Isidro, San Pedro, San Rafael, San Vicente, San Jose and Santiago.
NEIC reported an earthquake of M 2.5 in San Francisco, California was felt with intensity up to II-III in the area(s) of San Francisco, California with III in Los Altos, Hayward, Boulder Creek, Cupertino and II in La Honda, Santa Cruz, and Saratoga.
NEIC reported an earthquake of M 4.6 in Solomon Islands was felt with intensity up to II-III in the area(s) of Solomon Islands with IV at Honiara, Guadalcanal.
NEIC reported an earthquake of M 5.3 in New Guinea was felt with intensity up to II-III in the area(s) of New Guinea with III in the Southern Highlands at Tari and II in Aitape East Sepik.
NEIC reported an earthquake of M 5.5 in the Northern Ryukyu Island, Japan was not felt.
NEIC reported an earthquake of M 5.0 in Sumbawa, Indonesia was felt with intensity up to II-III in the area(s) of Sumbawa, Indonesia at Banjar Medura.
NEIC reported an earthquake of M 2.1 in Los Angeles, California was felt with intensity up to II-III in the area(s) of Los Angeles, California in Bell, Cudahy, Downey, North Hollywood, Valley Glen.
NEIC reported an earthquake of M 4.2 in Kuril Islands was felt with intensity up to II-III in the area(s) of Kuril Islands at Shikotan, Russia.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL STORM MUN (DEPRESSION 04W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MUN 2025-07-07 00:00 UT 36.7N 148.0E 040 kts east of Honshu, apan
TS MUN (TD 04W) continued today in the area off eastern Honshu, Japan with winds up to 40 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time. The antipode is at 37S 32W in the South Atlantic area and is not seismic.
TROPICAL STORM DANAS (05W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DANAS 2025-07-07 00:00 UT 27.1N 121.7E 055 kts west of Ryukyu Islands
TS Danas (05W) continued today in the area off western Ryukyu Islands, Japan with winds up to 55 kts. It is expected to track to the northwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and the Ryukyu Islands and in the antipodal area of northern Argentina and Bolivia at 27S 60W. A moderate M 4.5 occurred north of Taiwan in the Ryukyu Islands today as this storm passed through the area. It is now expected to turn to the west and may enhance antipodal seismicity in northern Argentina, Bolivia and Chile in the next three days.
A tropical cyclone may be forming south of Michoacan, Mexico. This system is currently located at 14N 104W and is moving to the WNW with winds up to 28 kts. Seismic Enhancement in the area of Mexico or at the antipode near 14S 77E in the Indian Ocean is not expected at this time.
TROPICAL STORM CHANTAL
---- ------- ---------- -------- ----- ------ ------- ---------------
TS CHANTAL 2025-07-07 00:00 UT 34.8N 82,0W 040 kts east of northern Florida
TS Chantal continued today in the area of South Carolina and southern Georgia with winds up to 40 kts. It is not expected to be seismoeffective in this region at this time. The antipode is near 34S 98E in the South Indian Ocean and is not expected to see enhanced seismicity with this system. An unusual earthquake M 2.7 hit the Georgia/South Carolina border as this storm was passing through and was probably promoted by energy from TD Chantel.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5130 0122 0129 0132 C1.3 (July 6, 2025) 5.7E-04
Nicobar Is. M 4.6 01:33 UT
5190 1041 1053 1106 C1.4 (July 6, 2025) 1.9E-03
Gulf of California M 3.8 10:49 UT
Fiji M 4.4 10:39 UT
Luzon M 4.0 10:59 UT
Solomon IS. 11:00 UT
Northern Peru M 5.4 11:27 UT
5240 1855 1857 1859 C1.2 (July 6, 2025) 3.4E-04
GEOMAGNETIC FIELD: unsettled July 7-8 quiet July 9. Solar M-flare chance: 5% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 26 37 20 11:00 6 81 118
A strong Gamma Ray Burst was recorded by SWIFT on July 6, 2025 at 15:48:30 UT (#250706A). A preliminary UVOT Magnitude of V>16.8 was assigned to this GRB.
Earthquakes of M 4.1 in the Kuril Islands and 4.3 in Coquimbo, Chile followed this GRB.
July 6, 2025
Notable earthquakes and events:
The largest earthquake in the world today was an M 5.5 in the Nicobar Islands region of India west of Sumatra. NEIC reported it was probably felt with intensity up to IV in Banda Aceh, Indonesia.
BMG reported it with M 5.4 was felt with intenisty III in Kab. Aceh Besar, Kota Saband and Bekasi and II in Pidie, Aceh Jaya, Pidie, Banda Aceh, Bogor and Sabang.
This is the strongest earthquake to date in the swarm which began on July 4
and was described in this summary as:
"A series of moderate earthquakes occurred in the Nicobar Islands, west of
Sumatra today. The mainshock of M 5.2 occurred within minutes of local solar noon
and was followed by a series of lighter aftershocks. At the same time the
earthquake swarm in the Andaman Islands, India appears to have quieted down.
These epicenters are about 200 km apart and could be connected by a strong
to major earthquake such as the M 9+ quake of December 26, 2004 which
generated a massive Indian Ocean Tsunami killing more than 250,000 residents
around the Indian Ocean." (July 4, 2025)
This earthquake occurred near local solar midnight and may have been promoted by
tidal and/or geomagnetic effects which maximize near this hour. The last earthquake
in the Nicobar Islands with M>=5.5 within about 200 km of today's epicenter
occurred on April 6, 2022 with M 5.5. The last of larger magnitude in this
region was an M 6.5 on December 6, 2016. At the time this summary noted:
"The M 6.5 in Northern Sumatra occurred 21.2 minutes after the event in Trinidad and Tobago.
These epicenters are separated by 152 degrees on the earth's surface and the strong reflective phase
off the core (PKP) arrived in Sumatra less than a minute before the quake in Sumatra
occurred. It it likely that it was triggered by this energy from Trinidad and Tobago.
NEIC reported the Sumatra event was strongly felt SE of Sigli, Indonesia with
maximum intensity VII in Dewantara, Aceh and VI in Bireun, Aceh. Intensity V was felt in
Banda Aceh and Sabang, Aceh. Intensity IV was felt within about 300 km of the
epicenter at Kathu, Thailand. Lesser shaking occurred in Thailand at Phuket, Krabi, Kantang, Phangnga; in Malaysia at Sungai Ara, Tanjong Bunga, Georgetown, Tanjong Tokong, Butterworth, Alor Setar, Petaling Jaya and in Bangkok, Thailand more than 1000 km from the epicenter. Also reported felt in Indonesia at Jakarta, Medan, Lhokseumawe, Sumatra, Indonesia.
A tropical cyclone is forming over Northern Sumatra. This system passed over
the epicenter of the M 6.5 there two days ago and stresses associated with
this storm probably helped promote today's earthquake. The system is currently
located at 9N 92E with winds up to 30 kts.
This is a strong aftershock of the M 9.1 which hit near this epicenter on
Boxing Day, December 26, 2004. The last earthquake of M>=6.5 within about 250
km of this epicenter occurred on May 9, 2010 about 150 km to the south,
similar to the only other strong earthquake in the region in the past 25 years
- the M 9.1 of December 26, 2004." (December 6, 2016)
O: 05JUL2025 19:42:20 6.3N 95.1E ML=5.5 NEIC NICOBAR ISLANDS
An unusual earthquake of M 3.9 was also felt in the area of Hungary today. NEIC reported it was felt with intensity III in Szolnok, Hungary.
EMSC reported it was felt with moderate intensity in Hungary at Csongrad, Kiskungelegyhaza, Szeged, Subotica.
O: 05JUL2025 18:55:52 46.7N 20.1E ML=3.9 NEIC HUNGARY
The strongest earthquake in the U.S. or Canada today was an M 4.5 in Southern Alaska. NEIC reported it was felt in North Lake, Anchorage, Clam Gulch, Homer, Ninilchik, Sterling and II in Anchor Point, Chugiak, Cold Bay, Cooper Landing, Eagle River, Girdwood, Kasilof, Kenai, Wasilla, Seward Soldnotna and Willow, Alaska.
An M 2.7 earthquake on the border of South Carolina and Georgia was widely felt in that area today. NEIC reported intensity IV in South Carolina at North Augusta and Plum Branch and III in Clarks Hill Edgefield, McCormick, Modoc, Lexington, Aiken and Graniteville. It was felt as far as Virginia.
This event occurred near the landfall position of Tropical Storm Chantal and may have been promoted by energy associated with that storm as noted in previous issues of this summary.
The last earthquake with M>=2.7 within about 150 km of this epicenter occurred
on June 18, 2022 with M 3.9. At the time this summary noted:
A moderate earthquake of M 3.9 was widely felt across the southeastern U.S. today. This event in Georgia was felt with intensity IV in Georgia a Metter, Twin City, Cobbtown, Swainsboro with lesser intensity throughout the rest of the State. Felt reports were made to NEIC from Maine, Massachusetts, Illinois, Pensylvania, Missouri, Louisiana, Maryland, Virginia, Florida, North Carolina, South Carolina, Alabama, among others.
This follows an M 2.3 which hit the same epicenter yesterday. This summary
had noted this event in the previous summary as:
"A light earthquake of M 2.2 occurred today in the area of Harlen, Georgia.
This event occurred within about a half hour of local solar midnight and
may have been promoted by high tidal stresses which maximize near this
hour. It may have been lightly felt in this area. This is the strongest
earthquake in eastern Georgia within about 100 km of this epicenter since
an M 2.3 on April 18, 2021 and an M 2.4 on March 5, 2020.
A series of light earthquakes has recently occurred east of this in South Carolina
and may be related to today's event. Forecasts 144254 and 144288 had expected this activity was likely around
June 13-16." (June 18, 2022)
Today's event of M 3.9 is the strongest in the region within about 100 km of
this epicenter since an M 4.1 on February 15, 2014 - the only such event
in this area in at least 30 years. At the time of this event
this summary noted:
"An earthquake of M 4.1-4.7 hit the border region between Georgia and South Carolina,
U.S. today. USGS and local reporters tended to give the smaller magnitude while
networks further afield such as GSR and EMSC gave values from M4.4-4.7. Initial
local magnitudes in the eastern U.S. are often underestimated and final magnitudes
often are better reflected by networks far from the epicenter so the true magnitude
is probably closer to M 4.5 than M 4.1. The epicenter was WNW of Edgefield, South Carolina. It was in this
same are where a massive ice storm hit over the past two days at its most fierce.
This summary has argued repeatedly that the relation between unusual weather
patterns and concurrent or subsequent earthquakes should not be ignored as a
triggering relation. In the current case, the earthquake occurred within
about two hours of the full moon alignment and tidal triggering in this area
is also highly likely." (February 15, 2014)
O: 05JUL2025 15:22:07 33.8N 82.1W Mw=2,7 EMSC GEORGIA, USA
"TS Chantal continued today in the area east of northern Florida and southern Georgia with winds up to 40 kts. It is not expected to be seismoeffective in this region at this time. It is currenly located near 30N 79W. The antipode is near 30S 101E in the South Indian Ocean and is not expected to see enhanced seismicity with this system." (July 4-5, 2025)
NEIC reported an earthquake of M 5.5 in the Northern Ryukyu Island, Japan was not felt.
NEIC reported an earthquake of M 2.5 in Nevada was felt with intensity up to II-III in the area(s) of Nevada at Yerington.
NEIC reported earthquakes of M 2.5, 2.7, in northwestern Kansas were felt with intensity up to II-III in the area(s) of northern Kanasa at Hill City.
NEIC reported an earthquake of M 3.8 in Western Turkey was felt with intensity up to II-III in the area(s) of Western Turkey in Istanbul with III at Gurpinar and II in Yakuplu.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL STORM MUN (DEPRESSION 04W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MUN 2025-07-06 00:00 UT 33.3N 148.0E 070 kts east of Izu Islands, Japan
TS MUN (TD 04W) continued today in the area off eastern Izu Islands, Japan with winds up to 70 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time. The antipode is at 30S 35W in the South Atlantic area and is not seismic.
TROPICAL STORM DANAS (05W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DANAS 2025-07-06 00:00 UT 23.8N 119.0E 075 kts west of northern Philippines
TS Danas (05W) continued today in the area off western Philippines with winds up to 75 kts. It is expected to track to the northwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and northern Philppines and in the antipodal area of northern Argentina and Bolivia at 20S 62-70W. An M 5.4 near this antipode occurred in Bolivia today and may have been promoted by energy from this storm.
A tropical cyclone may be forming south of Michoacan, Mexico. This system is currently located at 14N 104W and is moving to the WNW with winds up to 28 kts. Seismic Enhancement in the area of Mexico or at the antipode near 14S 77E in the Indian Ocean is not expected at this time.
TROPICAL STORM CHANTAL
---- ------- ---------- -------- ----- ------ ------- ---------------
TS CHANTAL 2025-07-06 00:00 UT 32.8N 81,0W 040 kts east of northern Florida
TS Chantal continued today in the area east of northern Florida and southern Georgia with winds up to 40 kts. It is not expected to be seismoeffective in this region at this time. It is currenly located near 30N 79W. The antipode is near 30S 101E in the South Indian Ocean and is not expected to see enhanced seismicity with this system.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
5040 1210 1218 1228 C1.5 (July 5, 2025) 1.4E-03
5050 1327 1342 1352 C1.3 (July 5, 2025) 1.7E-03
Kansas M 2.4, 2.4 13:54 UT
GEOMAGNETIC FIELD: unsettled July 6-8. Solar M-flare chance: 10% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 19 29 20 11:00 6 82 117
July 5, 2025
Notable earthquakes and events:
The largest earthquake in the world today was an M 5.7 in the Drake Passage south of Argentina. NEIC reported it may have been lightly felt in the epicentral ara.
This is the strongest aftershock to date since May 2, 2025 when the mainshock
of M 7.4 occurred, the last major earthquake in the world. An M 5.5 also occurred
in the area on June 7, 2025. Today's earthquake occurred within about an hour
of local solar noon and may have been promoted by tidal stresses which maximize
near this hour.
O: 04JUL2025 15:47:46 57.1S 67.5W ML=5.6 EMSC DRAKE PASSAGE
The strongest earthquake in the U.S. or Canada today was an M 4.2 off the coast of Oregon. NEIC reported it may have been lightly felt along the coast of Oregon.
This is part of the preliminary seismic enhancement of the region expected
to precede a strong volcanic eruption in the next several months. Several
moderate earthquakes of M>=4.2 have occurred in this region in recent days.
These included an M 4.4 on June 26, 2025. At the time this summary noted:
"Earthquakes of M 3.9 near Vancouver Island, B.C, Canada and M 4.4 off the coast of
Oregon were the strongest events in the U.S. or Canada today. The M 4.4 off Oregon
was reported lightly felt along the coast at Albany and Brookings and possibly in
southern Washington State.." (June 26, 2025)
Today's earthquake in Oregon may have been promoted by SFE associated with
the strongest solar flare of the day - a C2.5 (#4930) as it occurred near
local solar midnight at the height of that flare. This solar flare is the
strongest recorded by SWPC in nearly a week - since a C4.0 (#4260) on June 28, 2025. SWPC for these flares follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4930 0738 0747 0755 C2.5 (July 4, 2025) 2.3E-03
Coast of Oregon M 4.2 07:42 UT
4260 1940 1954 2001 C4.0 (June 28, 2025) 2.9E-03
O: 04JUL2025 07:42:59 43.3N 126.7W ML=4.2 EMSC OFF COAST OF OREGON
NEIC reported an earthquake of M 2.6 in San Francisco, California was felt with intensity up to II-III in the area(s) of San Francisco, California with III in Alamo, Benicia, Concord, Pleasant Hill, Lafayette, and II in Martinez and Oakley.
NEIC reported an earthquake of M 4.8 in Honshu, Japan was felt with intensity up to II-III in the area(s) of Honshu, Japan in Tomisato, Chiba.
NEIC reported an earthquake of M 2.5 south of Los Angeles, California was felt with intensity up to II-III in the area(s) of south of Los Angeles, California with II in San Pedro and Rancho Palos Verdes.
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 at Katangawan.
EMSC reported gentle shaking in Davao, Mindanao.
NEIC reported an earthquake of M 4.9 in Central Peru was felt with intensity up to II-III in the area(s) of Central Peru in Ica at Ica and Vista Alegre.
TROPICAL STORM MUN (DEPRESSION 04W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MUN 2025-07-05 00:00 UT 31.3N 148.0E 070 kts east of Izu Islands, Japan
TS MUN (TD 04W) continued today in the area off eastern Izu Islands, Japan with winds up to 70 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time. The antipode is at 30S 35W in the South Atlantic area and is not seismic.
TROPICAL STORM DANAS (05W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DANAS 2025-07-05 00:00 UT 20.8N 118.0E 075 kts west of northern Philippines
TS Danas (05W) continued today in the area off western Philippines with winds up to 75 kts. It is expected to track to the northwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and northern Philppines and in the antipodal area of northern Argentina and Bolivia at 20S 62-70W. An M 5.4 near this antipode occurred in Bolivia today and may have been promoted by energy from this storm.
A tropical cyclone may be forming south of Michoacan, Mexico. This system is currently located at 14N 104W and is moving to the WNW with winds up to 28 kts. Seismic Enhancement in the area of Mexico or at the antipode near 14S 77E in the Indian Ocean is not expected at this time.
TROPICAL STORM CHANTAL
---- ------- ---------- -------- ----- ------ ------- ---------------
TS CHANTAL 2025-07-05 00:00 UT 30.8N 79,0W 040 kts east of northern Florida
TS Chantal continued today in the area east of northern Florida and southern Georgia with winds up to 40 kts. It is not expected to be seismoeffective in this region at this time. It is currenly located near 30N 79W. The antipode is near 30S 101E in the South Indian Ocean and is not expected to see enhanced seismicity with this system.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4920 0353 0400 0409 C1.3 (July 4, 2025) 1.1E-03
4930 0738 0747 0755 C2.5 (July 4, 2025) 2.3E-03
Coast of Oregon M 4.2 07:42 UT
Nicobar M 3.8 07:37 UT
Honshu, M 4.2 07:56 UT
4970 1125 1133 1138 C1.0 (July 4, 2025) 8.1E-04
GEOMAGNETIC FIELD: unsettled July 5-7. Solar M-flare chance: 10% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 10 16 11 06:00 5 87 119
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
July 4, 2025
Notable earthquakes and events:
A series of moderate earthquakes occurred in the Nicobar Islands, west of
Sumatra today. The mainshock of M 5.2 occurred within minutes of local solar noon
and was followed by a series of lighter aftershocks. At the same time the
earthquake swarm in the Andaman Islands, India appears to have quieted down.
These epicenters are about 200 km apart and could be connected by a strong
to major earthquake such as the M 9+ quake of December 26, 2004 which
generated a massive Indian Ocean Tsunami killing more than 250,000 residents
around the Indian Ocean.
Today's events in the Nicobar Islands, India were reported by EMSC to have been felt lightly in Lambaro, Indonesia.
NEIC reported an earthquake of M 3.4 in Gulf of Alaska was felt with intensity up to II-III in the area(s) of Gulf of Alaska in Anchorage.
NEIC reported an earthquake of M 4.1 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska in Anchorage, Matanuska-Susitna, Fort Richardson.
NEIC reported an earthquake of M 3.8 in Kenai Peninsula, Alaska was felt with intensity up to II-III in the area(s) of Kenai Peninsula, Alaska with III in Homer and Soldotna and II in Anchor Point.
NEIC reported an earthquake of M 2.7 in Santa Barbara, California was felt with intensity up to II-III in the area(s) of Santa Barbara, California with III and II in Goleta.
EMSC reported an earthquake of M 4.0 in Peru was felt with intensity up to IV in the area(s) of Peru in Cieneguilla and Lima.
CSN reported the following parameters for an event in Tarapaca, Chile today:
03-07-2025 22:43 20.70S 67.11W 252 4.6 III Tarapaca at Iquique, Chile.
TROPICAL STORM MUN (DEPRESSION 04W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS MUN 2025-07-04 00:00 UT 30.2N 145.3E 070 kts east of Izu Islands, Japan
TS MUN (TD 04W) continued today in the area off eastern Izu Islands, Japan with winds up to 70 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time. The antipode is at 30S 35W in the South Atlantic area and is not seismic.
TROPICAL STORM 05W
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TS 05W 2025-07-04 00:00 UT 20.3N 118.0E 045 kts west of northern Philippines
TS 05W continued today in the area off western Philippines with winds up to 45 kts. It is expected to track to the northwest over the next several days. Enhanced seismicity with this storm is possible in Taiwan and northern Philppines and in the antipodal area of northern Argentina and Bolivia at 20S 62-70W. An M 5.4 near this antipode occurred in Bolivia today and may have been promoted by energy from this storm.
A tropical cyclone may be forming over the northern Philippine Islands. This system is currently located at 19N 119E with winds up to 23 kts and moving SW. It could enhance regional seismicity in northern Philippines and/or Taiwan in the next couple of days. The Antipode is at 20S 61W but will move to the more active seismic areas of northern Argentina and Bolivia in the next two days. These areas could see enhanced seismicity should this storm intensify.
HURRICANE FLOSSIE (06E)
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HURR FLOSSIE 2025-07-04 00:00 UT 20.9N 112.0W 45 kts West of Michoacan, Mexico
Hurricane Flossie (06E) continued today in the area off western Mexico with winds up to 45 kts. It is expected to track to the northwest over the next several days reaching an area near Cabo San Lucas, Baja Mexico around July 3. After that it could help promote seismicity in the region of the Gulf of California and Baja, Mexico but only moderately so. The antipode is at 21S 68E in the South Indian Ocean, an area where seismicity is rare and not likely to be enhanced at this time.
A tropical cyclone may be forming over Central Florida. It is not expected to be seismoeffective in this region at this time. It is currenly located near 28N 80W. The antipode is near 28S 100E in the South Indian Ocean and is not expected to see enhanced seismicity with this system.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4830 0120 0130 0200 C1.2 (July 3, 2025) 2.6E-03
Central Peru M 4.0 01:33 UT
Ryukyu Is. M 4.2 01:34 UT
Sumbawa M 4.2 01:34 UT
4890 0144 0148 0150 C1.0 (July 3, 2025) 5.7E-04
4840 0209 0218 0226 C1.3 (July 3, 2025) 1.5E-03
4850 0226 0247 0255 C1.6 (July 3, 2025) 2.7E-03
Banda Sea M 4.0 02:47 UT
4860 0808 0815 0821 C2.0 (July 3, 2025) 1.3E-03
GEOMAGNETIC FIELD: active July 4 unsettled July 5-6. Solar M-flare chance: 20% X-class: 1% proton storm: 1%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 16 21 16 14:00 5 118 125
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
t
A strong Gamma Ray Burst was recorded by SWIFT on June 28, 2025 at 00:55:56 UT (#250628A). A preliminary UVOT Magnitude of V>17.8 was assigned to this GRB.
July 3, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 5.6 in the area of Fiji. NEIC reported it may have been felt lightly in the epicentral area.
A moderately strong earthquake of M 5.5 occurred in the currently active swarm in the northern Ryukyu Islands, Japan. NEIC reported it was felt with intensity II in Kagoshima, Japan.
This event is the largest in a series of events of M>=5 in the region today. Some of these may
have been felt in Kagoshima and the northern Ryukyu Islands. The swarm has been
active for at least a week and could see a strong tsunamigenic earthquake
in the next week. This may be related to an eruption of Shinmoedake volcano in Takaharu in Miyazaki Prefecture
which has been ongoing during this period.
O: 02JUL2025 06:26:50 29.2N 129.3E ML=5.5 EMSC RYUKYU IS, JAPAN
The strongest earthquakes in the U.S. or Canada today occurred in the Andreanof Islands, Alaska. Events of M 4.3 and 3.7 were lightly feltat Adak, Alaska.
NEIC reported an earthquake of M 5.4 in Bolivia was felt with intensity up to II-III in the area(s) of Bolivia in Chile at Calama and Iquique, Antofagasta and Tarapaca.
CSN gave the following Parameters for this earthquake in Bolivia:
Felt with intensity IV in Tarapaca at Pica, Alto Hospicio, III in Iquique, Huara, La Tirana and Pozo Almonte.
O: 03JUL2025 05:41:43 21.3S 67.4W MW=5.5 CSN BOLIVIA
03-07-2025 05:41 21.34S 67.47W 207 5.5 IV Tarapaca at Pica, Alto Hospicio, III in Iquique, Huara, La Tirana and Pozo Almonte.
This earthquake in Bolivia is near the antipode of a forming tropical cyclone near northern
Philippines as reported in this summary and may have been promoted by
energy from that source.
"A tropical cyclone may be forming over the northern Philippine Islands. This system is currently located at 19N 119E with winds up to 23 kts and moving SW. It could enhance regional seismicity in northern Philippines and/or Taiwan in the next couple of days. The Antipode is at 20S 61W but will move to the more active seismic areas of northern Argentina and Bolivia in the next two days. These areas could see enhanced seismicity should this storm intensify.." (July 2-3, 2025)
NEIC reported an earthquake of M 4.5 in Mongolia was felt with intensity up to II-III in the area(s) of Mongolia at Ulaanbaatar.
EMSC reported moderate shaking in Ulan Bator, Mongolia.
NEIC reported an earthquake of M 2.7 in Mammoth Lakes, California was felt with intensity up to II-III in the area(s) of Mammoth Lakes, California at Glenbrook, Nevada.
NEIC reported an earthquake of M 4.2 in Turkey was felt with intensity up to II-III in the area(s) of Turkey with VI in Gemlik, Bursa and IV in Sile Istanbul and II-III i Istanbul at Buyukcekmece, Esenyurt, Selimpasa, Istanbl and Mudanye, Bursa.
EMSC reported moderate shaking in Turkey at Sahinyurdu, Gemlik, Orhangazi, Yalova, Kadikoy, Demirtas, Korukoy, Cinarcik among others.
NEIC reported an earthquake of M 4.3 off Michoacan, Mexico was felt with intensity up to II-III in the area(s) of off Michoacan, Mexico in Bonifacio Moreno, El Aguaje.
EMSC reported an earthquake of M 4.4 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar in Mandalay, and Pyin Oo Lwin.
EMSC reported an earthquake of M 4.2 in Dodecanes Islands, Greece was felt with intensity up to IV in the area(s) of Dodecanes Islands, Greece in Emporeio and Kefalos.
TROPICAL STORM MUN (DEPRESSION 04W)
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TS MUN 2025-07-03 00:00 UT 29.0N 145.0E 075 kts east of Bonin Islands, Japan
TS MUN (TD 04W) continued today in the area off eastern Bonin Islands, Japan with winds up to 75 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time. The antipode is at 29S 35W in the South Atlantic area and is not seismic.
A tropical cyclone may be forming over the northern Philippine Islands. This system is currently located at 19N 119E with winds up to 23 kts and moving SW. It could enhance regional seismicity in northern Philippines and/or Taiwan in the next couple of days. The Antipode is at 20S 61W but will move to the more active seismic areas of northern Argentina and Bolivia in the next two days. These areas could see enhanced seismicity should this storm intensify.
HURRICANE FLOSSIE (06E)
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HURR FLOSSIE 2025-07-03 00:00 UT 20.9N 112.0W 45 kts West of Michoacan, Mexico
Hurricane Flossie (06E) continued today in the area off western Mexico with winds up to 45 kts. It is expected to track to the northwest over the next several days reaching an area near Cabo San Lucas, Baja Mexico around July 3. After that it could help promote seismicity in the region of the Gulf of California and Baja, Mexico but only moderately so. The antipode is at 21S 68E in the South Indian Ocean, an area where seismicity is rare and not likely to be enhanced at this time.
A tropical cyclone may be forming over Central Florida. It is not expected to be seismoeffective in this region at this time. It is currenly located near 28N 80W. The antipode is near 28S 100E in the South Indian Ocean and is not expected to see enhanced seismicity with this system.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4740 1122 1129 1134 C1.1 (July 2, 2025) 8.2E-04
4770 1602 1612 1621 C1.7 (July 2, 2025) 2.0E-03
4780 1621 1624 1627 C1.9 (July 2, 2025) 8.4E-04
4790 1725 1732 1736 C1.8 (July 2, 2025) 1.1E-03
Ryukyu Is, M 4.9 17:32 UT
4810 1832 1835 1837 C2.5 (July 2, 2025) 1.0E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms July 3 active July 4 unsettled July 5. 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) 7 11 9 10:00 4 148 130
A strong Gamma Ray Burst was recorded by SWIFT on July 2, 2025 at 21:06:43 UT (#250702F). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 4.3 in the Ryukyu Islands accompanied this GRB at 21:06:49 UT.
A strong Gamma Ray Burst was recorded by SWIFT on June 28, 2025 at 00:55:56 UT (#250628A). A preliminary UVOT Magnitude of V>17.8 was assigned to this GRB.
July 2, 2025
Notable earthquakes and events:
A moderately strong M 5.5-5.6 occurred today in Central Chile. NEIC reported it was felt with intensity II-III in Chile at Metropolitana at Buin and II in Santiago with lesser shaking in San Antonio and Vina del Mar, Valparaiso.
O: 02JUL2025 01:39:38 33.6S 72.5W ML=5.5 EMSC OFFSHORE VALPARAISO, CHILE
CSN reported the following parameters for this event of M 5.6 and a foreshock to the north of M 4.3:
01-07-2025 19:44 30.86S 71.15W 57 4.3 V Coquimbo at Monte Patria, Ovalle, IV in Illapel, Andacollo, Punitaqui, Riio Hurdado, III in La Higuera, Vicuna, Combarbala and II in Salamanca, Coquimbo and Paiguano, Chile.
02-07-2025 01:39 33.65S 72.54W 36 5.6 V Santiago and Valparaiso, Chile.
This is the strongest earthquake in the area of Santiago and Valparaiso since an
M 5.6 on July 92, 2023. The last earthquake of significantly larger magnitude
in the area was an M 5.8 on January 24, 2021. At the time this summary noted:
"An earthquake of M 5.8 was also felt widely in the Santiago area of Central Chile today. NEIC reported maximum intensity V in Graneros, O'Higgins with IV ikn the Santiago, Chile area at Puente Alto, Lampa, Paine, Penaflor, Talagante and III in San Bernardo, Buin and San Felipe, Valparaiso.
A foreshock to the east in Mendoza, Argentina of M 4.2 was felt with intensity III in Mendoza and Corrientes, Argentina.
Large earthquakes in this area of Chile occur almost exclusively to the west
of this epicenter by abou 150+ km. The last earthquake within about 150 km of this epicenter with M>=5.8
as an M 6.4 on June 16, 2000." (January 24, 2021)
Like today's event, this earthquake in January, 2021 was closely associated
with a major earthquake in the South Shetland Islands - an M 7.0 of the same
date. Today's event follows an M 6.4-6.6 in the Scotia Sea of June 28, 2025.
It seems likely that a mechanism of stress transfer was involved in both
earthquakes.
A moderately strong earthquake of M 5.6 occurred in the currently active swarm in the northern Ryukyu Islands, Japan. NEIC reported it was felt with intensity II in Kagoshima, Japan.
This event is the largest in a series of events of M>=5 in the region today. Some of these may
have been felt in Kagoshima and the northern Ryukyu Islands. The swarm has been
active for at least a week and could see a strong tsunamigenic earthquake
in the next week. This may be related to an eruption of Shinmoedake volcano in Takaharu in Miyazaki Prefecture
which has been ongoing during this period.
O: 02JUL2025 06:26:50 29.2N 129.3E ML=5.6 EMSC RYUKYU IS, JAPAN
NEIC reported an earthquake of M 2.5 in Northern California may have been felt with intensity up to II-III in the area(s) of San Francisco, California.
An M 3.8 also occurred today in the precursory swarm to a possible volcanic eruption off the coast of Oregon. NEIC reported it was felt lightly along the coast of Oregon.
O: 02JUL2025 01:58:47 43.2N 126.9W ML=3.8 EMSC OFF COAST OF OREGON
GEONET reported an M 5.1-5.5 in the Snares Island area south of South Island today was felt weakly by 2 and lightly by 0 respondents in Southern South Island and in Snares Island, New Zealand.
O: 01JUL2025 16:38:08 47.3S 165.8E MB=5.5 GEONET Snares Island, New Zealand
NEIC reported an earthquake of M 2.5 in NW Washington State was felt with intensity up to II-III in the area(s) of NW Washington State in Belfair and Port Townsend and possibly in Victoria, B.C., Canada.
NEIC reported an earthquake of M 3.5 in Central California was felt with intensity up to II-III in the area(s) of Central California at Marinez, Gilroy, Santa Cruz, Modesto. It occurred within minutes of local solar noon and may have been promoted by tidal and/or geomagnetic effects which maximize near this hour.
NEIC reported an earthquake of M 4.6 in Turkmenistan-northern Iran border was felt with intensity up to II-III in the area(s) of Turkmenistan-northern Iran border in Asgabat.
EMSC reported moderate shaking in Turkmenistan at Ashgabat and Annau.
O: 01JUL2025 19:16:04 38.6N 57.1E ML=4.6 EMSC TURKMENISTAN
NEIC reported an earthquake of M 2.6 in Central California was felt with intensity up to II-III in the area(s) of Central California with III in Sunnyvale, Santa Rosa, Davis and II in San Francisco, Ben Lomond, Gilroy, Morgan Hill, San Jose and Merced.
EMSC reported an earthquake of M 4.9 in Kamchatka was felt with intensity up to IV in the area(s) of Kamchatka at Petropavlovsk-Kamchatsky.
EMSC reported earthquakes of M 4.3 and M 4.2 in Western Turkey were felt with intensity up to IV in the area(s) of Western Turkey in Orhangazi, Gemlik, Kucukkumla, Kadikoy, Yalova, Korukoy, Ciftlikkoy, Demirtas, Armutlu, Mudanya, Demirtas among others.
TROPICAL STORM MUN (DEPRESSION 04W)
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TS MUN 2025-07-02 00:00 UT 26.8N 145.6E 045 kts Bonin Islands, Japan
TS MUN (TD 04W) continued today in the area off western Bonin Islands, Japan with winds up to 45 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time. The antipode is at 27S 35W in the South Atlantic area and is not seismic.
HURRICANE FLOSSIE (06E)
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HURR FLOSSIE 2025-07-02 00:00 UT 19.3N 109.4W 105 kts West of Michoacan, Mexico
Hurricane Flossie (06E) continued today in the area off western Mexico with winds up to 105 kts. It is expected to track to the northwest over the next several days reaching an area near Cabo San Lucas, Baja Mexico around July 3. After that it could help promote seismicity in the region of the Gulf of California and Baja, Mexico but only moderately so. It will pass over the currently active area of Revilla Gigedo, Mexico in the next two days and could help enhance existing seismicity in that area. The antipode is at 19S 71E in the South Indian Ocean, an area where seismicity is rare and not likely to be enhanced at this time.
A tropical cyclone may be forming over Central Florida. It is not expected to be seismoeffective in this regioin at this time. The antipode is near 30S 100E in the South Indian Ocean and is not expected to see enhanced seismicity with this system.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4580 0524 0531 0534 C1.0 (July 1, 2025) 6.0E-04
San Francisco M 2.8 05:55 UT
Gulf of California M 4.3 05:51 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms July 2-3 active July 4. 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) 7 9 7 02:00 4 144 126
A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 2.8 in southern California occurred about 3 minutes later at 16:09 UT.
July 1, 2025
Notable earthquakes and events:
A moderate earthquake of M 4.4 shook the area of Naples, Italy today. Press reports
on the web said this was the strongest earthquake in Naples area in at least
40 years. EMSC reported it was felt with moderate intensity in Italy at Amodio-Massariola, Arenella, Vonero, Naples.
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 Daly City, San Francisco and II in Brisbane, Daly City.
EMSC reported it was felt with brief but strong jolt in California at Fairview, Castro Valley, Dublin, Pleasanton, Hayward, San Ramon, Ashland, Cherryland, Blackhawk, Union City, San Lorenzo, San Leandro, Fremont, Moraga, Saranap, Acalanes Ridge, South San Francisco, Colma, El Granada, Half Moon Bay.
An earlier earthquake of M 3.3 also shook areas of southern San Francisco, California earlier in the day. NEIC reported it was felt with intensity III in California at Castro Valley, San Leandro, Oakland, Hollister, Morgan Hill and II in Santa Margarita, Fresno and Hayward.
NEIC reported an earthquake of M 3.8 in Baja California, Mexico was felt with intensity up to II-III in the area(s) of Baja California, Mexico with II in Southern California at Alpine, Palm Desert.
NEIC reported an earthquake of M 5.1 in Vanuatu was felt with intensity up to II-III in the area(s) of Vanuatu with III in Vila Shefa.
NEIC reported an earthquake of M 4.4 in Bolivia was felt with intensity up to II-III in the area(s) of Bolivia with III in Cochabamba and La Paz.
EMSC reported moderate shaking in Bolivia at Cochabamba, Tiquipaya.
NEIC reported an earthquake of M 4.1 in Metropolitana, Chile was felt with intensity up to II-III in the area(s) of Metropolitana, Chile in Santiago and Puente Alto.
EMSC reported moderate shaking in Llaillay, Limache, Providencia, Quilpue, Lo Prado, Santiago, Vina del Mar, Valparaiso, Talagate.
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 with II in El Paso.
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 II in Anchorage and Eagle River.
NEIC reported an earthquake of M 4.5 in Coquimbo, Chile was felt with intensity up to II-III in the area(s) of Coquimbo, Chile in Santiago with III.
EMSC reported moderate shaking in Chile at Quilpue, Providencia.
NEIC reported an earthquake of M 3.1 in Northern California was felt with intensity up to II-III in the area(s) of Northern California with III in Citrus Heights and Portola and II in Castro Valley, Pleasanton, Pollock Pines, Sacramento and in Glenbrook, Nevada.
EMSC reported an earthquake of M 4.0 in Iran/Iraq was felt with intensity up to IV in the area(s) of Iran/Iraq in Iran at Orumiyeh, Urmia, Piranshahr, Erbil, Haji, and in Iraq at Choman, Raniye, and Halabjah.
EMSC reported an earthquake of M 4.2 in Taiwan was felt with intensity up to IV in the area(s) of Taiwan in Tainan.
BMG reported an earthquake of M 5.0 in the Banda Sea was felt with intensity up to II in the area(s) of the Banda Sea in Tanimbar Yaru and Molu Maru.
TROPICAL DEPRESSION 04W
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TD 04W 2025-07-01 00:00 UT 24.2N 147.6E 040 kts Bonin Islands, Japan
TD 04W formed today in the area off western Bonin Islands, Japan with winds up to 40 kts. It is expected to track to the northeast over the next several days passing Honshu well to the east. Enhanced seismicity with this storm is unlikely at this time. The antipode is at 24S 33W in the South Atlantic area and is not seismic.
HURRICANE FLOSSIE (06E)
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HURR FLOSSIE 2025-07-01 00:00 UT 17.5N 106.5W 115 kts West of Michoacan, Mexico
Hurricane Flossie (06E) continued today in the area off western Mexico with winds up to 115 kts. It is expected to track to the northwest over the next several days reaching an area near Cabo San Lucas, Baja Mexico around July 3. After that it could help promote seismicity in the region of the Gulf of California and Baja, Mexico. It will pass over the currently active area of Revilla Gigedo, Mexico in the next two days and could help enhance existing seismicity in that area. The antipode is at 18S 74E in the South Indian Ocean, an area where seismicity is rare and not likely to be enhanced at this time.
A tropical cyclone may be forming south of Oaxaca, Mexico. This system is currently located at 15N 100W and moving to the WNW with winds up to 35 kts. It is not expected to enhance regional seismicity at this time. The antipode at 15S 80E is not highly seismic.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4400 0348 0356 0401 C1.0 (June 30, 2025) 7.7E-04
4410 0624 0633 0640 C1.2 (June 30, 2025) 1.1E-03
Central California M 2.1 06:25 UT
Nicobar Is. M 4.9 06:36 UT
4440 1320 1327 1334 C1.4 (June 30, 2025) 1.2E-03
Sumbawa M 4.1 13:37 UT
4470 1513 1520 1526 C1.0 (June 30, 2025) 8.6E-04
Ryukyu Is. M 4.6 15:22 UT
4500 1759 1805 1816 C1.1 (June 30, 2025) 1.1E-03
4510 1825 1834 1840 C1.9 (June 30, 2025) 1.4E-03
So. Peru M 3.6 18:25 UT
Baja California M 3.1 18:31 UT
4540 2357 0002 0005 C1.1 (June 30, 2025) 5.2E-04
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: unsettled July 1 minor storms July 2-3. Solar M-flare chance: 20% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 20 8 18:00 4 158 128
A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 2.8 in southern California occurred about 3 minutes later at 16:09 UT.
June 30, 2025
Notable earthquakes and events:
The earthquake in California was not the largest in the U.S. or Canada today. That distinction
goes to a pair of events in the Near Islands, Alaska of M 4.9 and M 4.6. These
were not reported felt in this remote area.
O: 29JUN2025 07:13:56 52.3N 175.9E ML=4.9 NEIC NEAR ISLAND, ALASKA
O: 29JUN2025 07:13:55 51.2N 176.1E ML=4.6 NEIC NEAR ISLAND, ALASKA
NEIC reported an earthquake of M 3.1 in Northern California was felt with intensity up to II-III in the area(s) of Northern California with III in Citrus Heights and Portola and II in Castro Valley, Pleasanton, Pollock and in Glenbrook, Nevada.
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 with III in Mayaguez and II in Isabela.
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 Willow and II in Talkeetna, Alaska.
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 Tyonek and II in Skwentna.
EMSC reported an earthquake of M 2.4 in Northern California was felt with intensity up to IV in the area(s) of Northern California at Fulton.
EMSC reported an earthquake of M 4.3 in Southwestern Russia was felt with intensity up to IV in the area(s) of Southwestern Russia in Donskoye, Dmitriyevskoye, Ryzdvyanyy, Stavropol, Tatarka, Nevinnomyssk, and Sochi.
HURRICANE FLOSSIE (06E)
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HURR FLOSSIE 2025-06-30 00:00 UT 16.5N 105.5W 105 kts West of Michoacan, Mexico
Hurricane Flossie (06E) continued today in the area off western Mexico with winds up to 105 kts. It is expected to track to the northwest over the next several days reaching an area near Cabo San Lucas, Baja Mexico around July 3. After that it could help promote seismicity in the region of the Gulf of California and Baja, Mexico. It will pass over the currently active area of Revilla Gigedo, Mexico in the next two days and could help enhance existing seismicity in that area. The antipode is at 18S 74E in the South Indian Ocean, an area where seismicity is rare and not likely to be enhanced at this time.
A tropical cyclone may be forming south of Oaxaca, Mexico. This system is currently located at 15N 100W and moving to the WNW with winds up to 35 kts. It is not expected to enhance regional seismicity at this time. The antipode at 15S 80E is not highly seismic.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4340 0815 0837 0845 C1.2 (June 29, 2025) 2.1E-03
Nepal M 4.7 08:49 UT
4350 1238 1245 1252 C1.0 (June 29, 2025) 8.9E-04
Timor M 4.0 12:38 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: quiet June 30 and July 1 minor storms July 2. Solar M-flare chance: 20% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 20 8 18:00 4 151 128
A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 2.8 in southern California occurred about 3 minutes later at 16:09 UT.
June 29, 2025
Notable earthquakes and events:
A moderate earthquake of M 4.6-4.8 occurred today in the Owen Valley of central
California near the Nevada border. NEIC reported it was felt with intensity III in Nevada at Silverpeak and Carson City and in California at Ludlow, Porterville, Big Pine, Bishop, Auberry, Bass Lake, Oakhurst, Squaw Valley, Fresno, Mariposa and Twain Harte and II in Nevada at Pahrump, Las Vegas, Glenbrook, and in California at Walnut, Springville, Tulare, Visalia, Independence, June Lake, Mammoth Lakes, Clovis, Fish Camp, Kings Canyon, Madera, Shaver Lake, Fresno, and Lake Tahoe.
EMSC reported it was felt and heard in Dixon Lane-Meadow Creek, Patterson Tract, Old Fig Garden, Kerman,
An aftershock of M 3.9 was reported by NEIC to have been felt with intensity III in California at Independence and North Fork and in Pahrump, Nevada and with II in Nevada at Glenbrook, Carson City, and in California at Bishop, Mammoth Lakes, Kings Canyon, Miramonte and Mariposa.
The M 4.6 in California is the strongest within about 100 km of today's epicenter
since an M 4.7 on October 25, 2024. The last of significantly larger magnitude was an M
5.8 on June 24, 2020. At the time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 5.8 in the Lone Pine
region of California midway between the Ridgecrest aftershock zone and the Tonopah, Nevada
aftershock zone. It appears to be the mainshock in the current series.
NEIC reported maximum intensity VI in Independence and Lone Pine and IV in California at East Porterville, Porterville, Strathmore, Big Pine, Searles Valley, Lindsay, Wooklake, Ridgecrest, Farmersville and Exeter and II-III within about 150 km of the epicenter." (June 24, 2020)
and
"The strongest earthquake in the U.S. or Canada today was an M 4.6 in the Lone Pine area of California near the Nevada border. This is not an aftershock of the Ridgecrest group nor of the Tonopah, Nevada earthquakes of M 7.1 and 6.5 and represents a new regional mainshock. Like the Ridgecrest event of July 4, 2019 which started this group of earthquakes, today's event occurred two days
after a solar eclipse. NEIC reported maximum intensity IV in Independence and Lone Pine and II-III in California at Springville, Three Rivers, Sequoia National Park, Kings Canyon, Big Pine, Porterville, Ridgecrest and Lake Isabella among others. An aftershock of M 3.8 was felt in the Lone Pine, California area with intensity III and II in Three Rivers, California.
The quake occurred near local solar noon and was probably promoted by high
tidal stresses associated with the new moon/eclipse of June 21.
The last earthquake within about 50 km of today's epicenter with M>=4.6 occurred
on May 3, 2011 with M 4.5. Two earthquakes about 50 km southeast of this epicenter
accompanied the Ridgecrest aftershocks on July 11 and July 18, 2019. The last major
series of earthquakes in the area of today's epicenter occurred in early October (1 and 3), 2009
reaching maximum size of M 5.2." (June 23, 2020)
Enhanced seismicity in the region of Central California had been expected in this summary at this
time in previous issues as:
"In the past several years a pattern has been emerging in the western U.S. and Canadian
seismicity during the early summer weeks. This has generally involved a series
of moderate to large earthquakes in southern Alaska and the U.S. and Canadian
area around British Columbia, Washington and Oregon including offshore volcanism. Over several days this
enhanced seismicity migrated to the south often culminating in early July
with a strong to major earthquake in Central or southern California and/or Nevada. This
is not a difficult pattern to discern, especially in times of low global and
regional seismicity as is current (no earthquakes in the world of M>=6.5
in nearly two months and the last swarm of such event in late March and early
April, 2025). Readers are advised to watch for this general pattern in
the next two weeks." (June 24-28, 2025)
This event is located near the third node (120 degrees) from the M 6.6 in the
Scotia Sea earlier in the day and may have been promoted by energy from that source.
O: 28JUN2025 02:37:58 37.3N 117.9W ML=4.6 NEIC CENTRAL CALIFORNIA
The earthquake in California was not the largest in the U.S. or Canada today. That distinction
goes to a pair of events in the Near Islands, Alaska of M 4.9 and M 4.6. These
were not reported felt in this remote area.
O: 29JUN2025 07:13:56 52.3N 175.9E ML=4.9 NEIC NEAR ISLAND, ALASKA
A strong earthquake of M 6.4-6.6 was recorded in the Scotia Sea today. It was not
reported felt in this remote area and no tsunami was expected nor observed.
The last earthquake in the Scotia Sea within about 200 km of today's epicenter
with M>=6.6 occurred on August 20, 2006 with M 7.0 - the only such event
in the region in at least 35 years.
"An earthquake occurred today in the region of SCOTIA SEA with magnitude of M 7.1. ... This is the strongest earthquake listed by NEIC in the region of SCOTIA SEA within 300 km of this epicenter in the region bounded by (58.6-63.4S 29.5- 39.3W) since 1987. The general region of the Scotia Sea has been surprisingly active over the past five years with earthquakes of M 6.0 on Sept. 30, 2003 and the strongest ever recorded in the region to the west of today's epicenter - an M 7.5 on August 4, 2003. The area is remote and the earthquake was likely not felt by more than a few residents and scientists in the area. No tsunami warning was issued." (August 20, 2006)
This is the strongest earthquake in the world in nearly two months, since an
M 7.4 in the Drake Passage northwest of today's epicenter on May 2, 2025.
Generally this summary does not issue far-field forecasts for events of M 6.4-6.6,
the rarity of this event and possible impact on the California area indicates
such a forecast is prudent in this case. While far-field triggering is likely
in the following areas it is not likely to be strong with only moderate
enhancement near nodal distances and near 103 and 144 degrees from the
Scotia Sea epicenter.
Preliminary expectations for far field triggering from Scotia Sea (M 6.4-6.6 June 28, 2025)
Antipodal (~180 degrees)
Scotia Sea to Siberia north of Sakhalin, Russia
Outer shadow zone edge (141-148 degrees)
Scotia Sea to northern Ryukyu Is, Eastern China, Southern Alaska,
Node 3 (120 degrees)
Scotia Sea to Northern and central California, coast of Oregon, California, Hawaii, southern Greenland, Iran, Pakistan, Talaud Is, Mindanao,
P- and S- shadow zone edge and node 7 (101-110 degrees)
Scotia Sea to Gulf of California, Mexico, Sumatra, Solomon Is. Crete, Azores, Texas,
Node 4 (90 degrees)
Scotia Sea to Tonga, Fiji, Oaxaca, Guerrero, Mexico, Vanuatu,
Node 5 (72 degrees)
Scotia Sea to Fiji, Panama, Colombia, South Is, New Zealand,
Node 6 (60 degrees)
Scotia Sea to Central Mid-Atlantic, Northern Peru,
Node 7 (52 degrees)
Scotia Sea to Southern Peru, Macquarie
Today's event in the Scotia Sea is near the third node (120 degrees) from the M 6.1 in the Philippines earlier in the
day and may have been promoted by energy from that source.
O: 28JUN2025 08:32:21 60.9S 38.9W MW=6.6 NEIC SCOTIA SEA
An unusual earthquake of M 5.1 occurred minutes after the event in the Scotia Sea near the
antipode in northeastern Russia near Chokurdakh. It was not reported
felt in this remote area. This is the strongest earthquake located within about 500 km
of this epicenter in northeastern Russia in at least 35 years.
O: 28JUN2025 09:51:30 72.4N 142E ML=5.1 NEIC SIBERIA, RUSSIA
NEIC reported an earthquake of M 5.1 south of Panama was felt with intensity up to II-III in the area(s) of south of Panama. This epicenter is at the fifth node (72 degrees) from the event in the Scotia Sea today and may have been promoted by energy from that source.
NEIC reported earthquakes of M 2.9 and M 2.9 in Central California were felt with intensity up to II-III in the area(s) of Central California with III in Salinas, Aromas and II in Duarte, Wildomar, Marina, Monterey and San Juan Bautista .
NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska in Anchor Point.
NEIC reported an earthquake of M 5.4 in the current swarm in the Ryukyu Islands, Japan was felt with intensity up to II-III in the area(s) of the current swarm in the Ryukyu Islands, Japan with intensity up to IV.
NEIC reported an earthquake of M 5.3 in Pakistan was felt with intensity up to II-III in the area(s) of Pakistan with VI in Barkhan, Baluchistan, Pakistan.
NEIC reported an earthquake of M 5.1 in Guatemala was felt with intensity up to II-III in the area(s) of Guatemala with IV in Parramos, Chilmaltenango, La Gomera, Alotenango and III in San Andres Itzapa, San Jose, Fraijanes, Mixco, Villa Nueva and in El Salvador at Antiguo Cuscatlan, San Marcos, San Salvador.
EMSC reported moderate shaking in Guatemala at La Govera, Alotenango, Villa Nueva, Santa Catarina Pinula Mixco, Guatemala City, Santa Tecla, Antiguo Cuscatlan, Santiago de Maria, El Salvador.
NEIC reported an earthquake of M 3.7 in Southern Colorado was felt with intensity up to II-III in the area(s) of Southern Colorado in Trinidad and IV in Raton, and Albuquerque, New Mexico.
NEIC reported an earthquake of M 4.8 in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in Coquimbo, Chile was felt with intensity up to II-III in the area(s) of Coquimbo, Chile in Coquimbo, La Serena and Vicuna (IV).
No tropical cyclones are currently active
A tropical cyclone may be forming south of Oaxaca, Mexico. This system is currently located at 15N 100W and moving to the WNW with winds up to 35 kts. It is not expected to enhance regional seismicity at this time. The antipode at 15S 80E is not highly seismic.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4170 0358 0410 0421 C1.1 (June 28, 2025) 1.3E-03
Tonga M 5.5 04:17 UT
New Zealand M 4.1 04:09 UT
Oaxaca M 4.1 02:02 UT
Los Angeles, California 04:30 UT
4260 1940 1954 2001 C4.0 (June 28, 2025) 2.9E-03
Guatemala M 5.1 19:35 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: unsettled June 29 quiet June 30 and July 1. Solar M-flare chance: 25% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 20 8 18:00 4 103 122
A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 2.8 in southern California occurred about 3 minutes later at 16:09 UT.
June 28, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 6.1 in southern Mindanao, Philippines.
EMSC reported it was strongly felt in Mindanao at General Santos, Silway, Mati, Koronadal, Davao, Babak, Cogon, Biao, Babak, Santo Nino, Tagum City, Maguugpo and Cotabato.
NEIC reported it was felt widely in Mindanao with intensity VI in Balangonan, Kalbay, Lapuan, Sarangani; V in Buayan, Glan, Malandag, Malita, Panabo, San Jose; IV in Davao, Koronadal, Lasang and Polonuling with III in Katangawan.
PHIVOLCS reported it was felt with intensity V in Sarangani, Santa Maria, and Maltita, Davao Occidental; Pantukan, Davao de Oro, Glan and Malungon, Sarangani and IV in Compostela, Monkayo and Montevista, Davao de Oro; Malalag and Santa Cruz, Davao del Dur, City of Davao, Don Marcelino and Jose Abad Santos, Davao Occidental; Banaybanay and Governor Generoso, Davao Oriental; Alabel, Kiamba and Malapatan, Sarangani; City of Koronadal and Tupi, South Cotabato; City of General Santos and II-III throughout much of the region of southern Mindanao.
BMG reported this event at M 6.4 was felt with intensity III in Kep. Sangihi at Tabukan, Manganitu, Tatoarent, Kendahe, Tahuna, and Marore and in Talaud at Lirung, Beo, Rainis, Essang, Nanusa, Kabaruan, Melonguane, Gemch, Damau, Salibabu, Kalongan, Miangas, Beo, Pulutan, Melonguane, Moronge and Essang.
No tsunami was expected nor observed.
An aftershock of M 4.9 was reported with intensity II in Katangawan, Mindanao.
This is the strongest earthquake within about 200 km of this epicenter since
an M 6.2 on April 22, 2025 but the last of significantly larger magnitude
was an M 6.7 on January 8, 2024. At the time this summary noted:
"The strongest earthquake in the world today was an M 6.7-6.8 in the Talaud Islands. NEIC reported it was felt with intensity up to VI in Sarangani, Philippines.
PHIVOLCS reported it was felt with intensity IV in Sarangani, Davao Occidental; Glan, Kiamba and Malungon, Sarangani and III in Nabunturan and Pantukan, Davao de Oro, City of Digos, Davao Del Sur; City of Davao, Don Marcelino an dJHose Abad Santos, Davao Occidental; Matalam, Cotabato, Alabel and Malapatan, Sarangani; City of Koronadal, Polomolok, T'Boli, and Tupi, South Cotabato and City of General Santos and with lesser intensity in Zamboanga, Sultan Kudarat.
BMG reported this event with M 7.0 was felt with intensity IV in Sangihe, Tabukan, Marore, and in Talaud at Lirung, Beo, Rainis, Essang, Nanusa, Kabaruan, Melonguane, Gemeh, Damau, Salibabu, Kalongan, Miangas, Pulutan, Moronge, and III in Sangihe at Manganitu, Tatoareng, Tamako, Manganitu, Tabukan Tengah, Kendahe, Tahuna, Siau, Tagulandang, Biaro.
Aftershocks of M 5.3 and M 5.1 were also felt with light to moderate intensity in the Talaud area
according to data from BMG. This epicenter is near the 11th node from the M 7.5 in Honshu,
Japan of January 1, 2024 (32.7 degrees) and may have been promoted by
energy from that source as well as from other strong earthquakes in the area
of Mindanao over the past two months.
Today's earthquake is the strongest within about 200 km of this epicenter
since an M 7.0 on January 21, 2021. At the time this summary noted:
"Today's event (in Mindanao) is the strongest within about 200 km of this epicenter since an
M 7.0 on December 29, 2018. The last of larger magnitude was an M 7.2 about 200
km southwest of this on February 11, 2009. ...
The coast of California is near 103 degrees from the epicenter of this earthquake in the Philippines and
may see enhanced seismicity related to incoming energy from this source
in the near future." (January 21, 2021)
O: 27JUN2025 23:07:10 5.2N 126.2E ML=6.5 BMG Mindanao, Philippines
O: 27JUN2025 23:07:10 5.3N 126.1E ML=6.1 EMSC Mindanao, Philippines
O: 27JUN2025 23:07:10 5.1N 126.2E ML=6.1 PHIVOL Mindanao, Philippines
O: 27JUN2025 23:41:45 5.4N 126.0E ML=5.5 BMG Mindanao, Philippines
O: 27JUN2025 23:41:44 5.4N 126.0E ML=4.9 EMSC Mindanao, Philippines
O: 27JUN2025 23:41:45 5.3N 126.0E ML=5.2 PHIVOL Mindanao, Philippines
An earthquake of M 4.8 was recorded today in the South Georgia Island region south of
South America. It was not reported felt in this remote area but could precede
stronger regional activity if a strong solar flare should follow.
O: 26JUN2025 05:02:04 55.5S 37.3W ML=4.8 EMSC South Georgia Island Region
"The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate." (June 22-23, 2025)
There was some evidence that the expected enhanced seismicity in California
and Nevada has begun. A series of moderate earthquakes in Nevada today included
a series near Redding, California including an M 3.6. Other moderate earthquakes
in the region today included several in the Gulf of California. These may at
higher enhancement with a moderate event of M>=4.5 possible in Nevada or California
in the next several days as previously noted in this summary:
"In the past several years a pattern has been emerging in the western U.S. and Canadian
seismicity during the early summer weeks. This has generally involved a series
of moderate to large earthquakes in southern Alaska and the U.S. and Canadian
area around British Columbia, Washington and Oregon including offshore volcanism. Over several days this
enhanced seismicity migrated to the south often culminating in early July
with a strong to major earthquake in Central or southern California and/or Nevada. This
is not a difficult pattern to discern, especially in times of low global and
regional seismicity as is current (no earthquakes in the world of M>=6.5
in nearly two months and the last swarm of such event in late March and early
April, 2025). Readers are advised to watch for this general pattern in
the next two weeks." (June 24-26, 2025)
This may have been preceded today with an M 5.2 in the Fox Islands, Aleutians.
The strongest earthquake in the U.S. or Canada today was an M 5.2 in the Fox Islands, Aleutians, Alaska. It was not reported felt in this remote area.
O: 28JUN2025 06:08:19 51.4N 168.6W ML=5.2 EMSC Fox Islands, Aleutian Islands
NEIC reported an earthquake of M 2.7 in Central California was felt with intensity up to II-III in the area(s) of Central California with III in Caliente and II in Frazier Park and Tehachapi.
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 with intensity II in Redding and Anderson, California.
An earthquake of M 3.6 was widely felt in northern California today. NEIC reported it was felt with intensity IV in California at Redding, Bella Vista, Igo; III in Anderson, Shasta Lake, Cottonwood, French Gulch and Lakehead.
NEIC reported an aftershock of M 2.5 in Northern California was felt with intensity up to II-III in the area(s) of Northern California with III in Clio and II at Redding and Portola.
O: 27JUN2025 10:57:11 40.6N 122.4W ML=3.5 EMSC Northern California
No tropical cyclones are currently active
A tropical cyclone may be forming south of Oaxaca, Mexico. This system is currently located at 14N 97W and moving to the WNW with winds up to 28 kts. It is not expected to enhance regional seismicity at this time. The antipode at 14S 83E is not highly seismic.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
4020 0249 0305 0317 C1.9 (June 27, 2025) 2.3E-03
Nevada M 2.4 03:05 UT
Guadeloupe M 3.8 03:13 UT
4100 1027 1035 1044 C1.1 (June 27, 2025) 1.1E-03
4110 1321 1333 1345 C1.2 (June 27, 2025) 1.6E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active June 28 unsettled June 29 quiet June 30. Solar M-flare chance: 25% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 21 37 16 18:00 6 111 118
A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 2.8 in southern California occurred about 3 minutes later at 16:09 UT.
June 27, 2025
Notable earthquakes and events:
An earthquake of M 4.6 was widely felt in eastern Honshu, Japan today. NEIC reported it was felt with intensity III in Japan in Ibaraki, Saitama and Tokyo Prefectures and II in Chiba and Kanagawa Prefectures.
EMSC reported moderate shaking in Honshu, Japan at Kamagaya, Urayasu, Tokyo, Komai.
This event occurred while the eye of TS Sepat was within about 100 km of this
epicenters and had been expected to occur due to stresses associated with that
storm in previous issues of this summary as:
"TS Sepat continued today in the area east of Honshu with winds up to to 35 kts. It is expected to track to the west and north. It could help trigger moderate regional seismicity in the area of eastern Honshu, Japan in the next several days. As the first tropical cyclone to hit Honshu, Japan this season, it may trigger a moderate to large earthquake in the area of eastern Honshu, Japan as it passes through that area around June 26-27. The antipode is at 35S 38W, an area off the east coast of South America in the Atlantic. Occasional quakes occur in this area (called the South Atlantic geomagnetic anomaly) and the broader area could see enhanced seismicity at this time." (June 25-27, 2025)
Earthquakes of M 3.9 near Vancouver Island, B.C, Canada and M 4.4 off the coast of
Oregon were the strongest events in the U.S. or Canada today. The M 4.4 off Oregon
was reported lightly felt along the coast at Albany and Brookings and possibly in
southern Washington State.
These events may be the opening salvo in an expected regional migration of moderate
regional earthquakes as noted in previous issues of this summary:
"In the past several years a pattern has been emerging in the western U.S. and Canadian
seismicity during the early summer weeks. This has generally involved a series
of moderate to large earthquakes in southern Alaska and the U.S. and Canadian
area around British Columbia, Washington and Oregon including offshore volcanism. Over several days this
enhanced seismicity migrated to the south often culminating in early July
with a strong to major earthquake in Central or southern California and/or Nevada. This
is not a difficult pattern to discern, especially in times of low global and
regional seismicity as is current (no earthquakes in the world of M>=6.5
in nearly two months and the last swarm of such event in late March and early
April, 2025). Readers are advised to watch for this general pattern in
the next two weeks." (June 24-26, 2025)
The M 4.4 off western Oregon is the strongest earthquake within about 150 km of this
volcanic region since an M 4.7 on January 25, 2025, an aftershock of an M 6.0 on October 30, 2024.
At the time this summary noted:
"An earthquake of M 6.0 occurred minutes into the time of occurrence of these flare off the coast of Oregon.
This earthquake occurred within several minutes of local solar noon and was
likely triggered by Solar Flare Effects (SFE) from this flare which maximize near
local solar noon. It also occurred shortly about an hour after a strong Gamma Ray
Burst. Both the flare and the M 6.0-6.1 earthquake may have been triggered
by energy flux associated with the Gamma Ray Burst (GRB #241030).
The last earthquakes within about 200 km of today's epicenter with M>=6 occurred
with M 6.3 on August 29, 2019 and M 6.2 on August 22, 2018. Only one other such
event has hit the area in the past 15 years - an M 6.0 on April 11, 2012.
At the time of the 2019 event this summary noted:
"This is the strongest earthquake off the coast of Oregon within about 250
km of this epicenter in more than 10 years - since an M 6.3 on January 10, 2008
and prior to that an M 6.3 on January 16, 2003. The only event in the region
with greater magnitude in the past 30 years was an M 6.9 on July 13, 1991." (August 29, 2019)
More recently on September 2, 2024 this summary reviewed recent seismicity in the area as:
"The strongest earthquake in the U.S. or Canada today was an M 4.2 off the coast of Oregon.
NEIC reported this earthquake of M 4.2 off the coast of Oregon was felt with intensity up to II in the area(s) of Oregon in Portland.
This area has been relatively quiet in recent months. The last earthquake
of M>=4.2 occurred on May 4, 2024 with M 4.3. The last of significantly larger
magnitude was an M 5.7 on March 27, 2024. At the time this summary noted:
"The strongest earthquake in the U.S. or Canada today was an M 5.7 off the coast of
Oregon. NEIC reported it was felt with intensity up to III along the coast of Oregon,
especially in the Port Orford area. EMSC reported light shaking in Springfield, Oregon. A foreshock of M 3.0 hit the area within
minutes of local solar noon about 12 hours earlier and was felt in the Port Orford,
Oregon area. These earthquake occurred near local solar noon and
midnight and may have been promoted by tidal stresses with the full moon" (March 27, 2024, September 2, 2024)
Strong Earthquakes off the coast of Oregon and Northern California often occur together
in periods of regional activation of the west coast of the U.S. and Canada as previously described in this summary.
Light earthquakes in the Fox Islands, Aleutians also occurred today about 9 minutes
of the M 6.0 offshore Oregon and may have been promoted by seismic waves
from Oregon. These events in Alaska are at 27.5 degrees from the Oregon epicenter
and occurred as the surface wave and the S-phase body waves were passing
through the Fox Islands. It is likely they were triggered by these seismic
phases from Oregon." (October 30, 2024)
Today's event in Oregon may also have been promoted by tidal stresses
associated with the new moon of June 25, 2025 as noted in previous issues of this summary:
"The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate." (June 22-23, 2025)
Today's event off Oregon may also have been promoted by SFE from solar flare
3940 as it occurred at the maximum output of that flare. Data for this flare
from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3940 1216 1222 1228 B7.7 (June 26, 2025) 5.2E-04
Coast of Oregon M 4.4 12:24 UT
O: 26JUN2025 12:24:38 43.7N 127.9W ML=4.4 EMSC OFFSHORE OREGON
An earthquake of M 3.6 was widely felt in northern California today. NEIC reported it was felt with intensity IV in California at Redding, Bella Vista, Igo; III in Anderson, Shasta Lake, Cottonwood, French Gulch and Lakehead.
NEIC reported an aftershock of M 2.5 in Northern California was felt with intensity up to II-III in the area(s) of Northern California with III in Clio and II at Redding and Portola.
An earthquake of M 2.9 was widely felt in southern Missouri today. NEIC reported maximum intensity V in Missouri at California with III in Redford, Briar, Doniphan, Grandin and in Pocahontas, Arkansas. Intensity II was also felt in Ellington, Poplar Bluff Missouri and in Warm Springs Arkansas.
NEIC reported an earthquake of M 4.4 in Albania was felt with intensity up to II-III in the area(s) of Albania with III in Tirana and II in Durres.
EMSC reported moderate shaking in Albania at Maminas, Vore, Preze, Shijak, Berxull, Xhafzotai, Kashar, Kamez, Gjepalaj, Ishem, Durres among others.
NEIC reported an earthquake of M 4.7 in Ecuador was felt with intensity up to II-III in the area(s) of Ecuador in Guayas with IV in Eloy Alfaro; III in Santa Lucia and II in Guayaquil.
EMSC reported moderate shaking in Ecuador at Guayaquil, Eloy Alfaro, Guaranda.
NEIC reported an earthquake of M 3.4 in Northern Nevada was felt with intensity up to II-III in the area(s) of Northern Nevada with III in Redding, California.
EMSC reported an earthquake of M 4.3 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar in Mandalay.
TROPICAL STORM SEPAT (02W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SEPAT 2025-06-27 00:00 UT 36.7N 141.4E 35 kts E of Honshu, Japan
TS Sepat continued today in the area east of Honshu with winds up to to 35 kts. It is expected to track to the west and north. It could help trigger moderate regional seismicity in the area of eastern Honshu, Japan in the next several days. As the first tropical cyclone to hit Honshu, Japan this season, it may trigger a moderate to large earthquake in the area of eastern Honshu, Japan as it passes through that area around June 26-27. The antipode is at 35S 38W, an area off the east coast of South America in the Atlantic. Occasional quakes occur in this area (called the South Atlantic geomagnetic anomaly) and the broader area could see enhanced seismicity at this time.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3830 0033 0040 0049 C1.0 (June 26, 2025) 9.4E-04
3920 0832 0855 0950 C1.3 (June 26, 2025) 4.4E-03
Nepal M 3.9 08:31 UT
So. Peru M 4.0 08:33 UT
3940 1216 1222 1228 B7.7 (June 26, 2025) 5.2E-04
Coast of Oregon M 4.4 12:24 UT
El Salvador M 4.4 12:34 UT
Mindanao M 4.9 12:50 UT
4010 2031 2041 2048 C1.3 (June 26, 2025) 1.2E-03
Mindanao M 4.1 20:37 UT
Myanmar M 4.3 20:58 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms June 27 active June 28 unsettled June 29. Solar M-flare chance: 25% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 26 41 24 15:00 6 91 117
A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 2.8 in southern California occurred about 3 minutes later at 16:09 UT.
June 26, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 6.2 in the Southern Mid-Atlantic area. It was not reported felt in this remote area.
This event may have been promoted by near-antipodal energies from Tropical Storm
Sepat - currently located near its antipode off eastern Honshu Japan. This summary
had noted this Tropical Storm as:
"TS SEPAT 2025-06-26 00:00 UT 35.7N 141.4E 35 kts E of Honshu, Japan
TS Sepat continued today in the area east of Honshu with winds up to to 35 kts. It is expected to track to the west and north. It could help trigger moderate regional seismicity in the area of eastern Honshu, Japan in the next several days. As the first tropical cyclone to hit Honshu, Japan this season, it may trigger a moderate to large earthquake in the area of eastern Honshu, Japan as it passes through that area around June 26-27. The antipode is at 35S 38W, an area off the east coast of South America in the Atlantic. Occasional quakes occur in this area (called the South Atlantic geomagnetic anomaly) and the broader area could see enhanced seismicity at this time." (June 25-26, 2025)
It is also likely that the earthquake in the South Atlantic was promoted
by high tidal stresses with today's new moon as described in previous issues
of this summary:
"The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate." (June 22-23, 2025)
This area of the South Atlantic Geomagnetic Anomaly does occasionally see
strong earthquakes. The last such occurred 10 years ago June 17, 2015 with
M 7.0 but others have occurred on February 16, 2005 (M 6.5); April 24, 1998 (M 6.3) and January 3, 1998 (M 6.2).
When the M 7.0 occurred 10 years ago, this summary noted:
"An earthquake of M 6.9-7.0 today in the South Atlantic Ocean was apparently triggered
by tidal stresses. The earthquake occurred within minutes of local solar noon,
a prime time for tidal stresses. The new moon yesterday also reached maximum
near this Atlantic longitude, further evidence that this event was timed by
tidal stresses. This was enhanced by the geomagnetic effects as the epicenter
is located about 15 degrees south of the local geomagnetic equator." (June 17, 2015)
and
"Today's earthquake of M 6.4 in the South Atlantic was the strongest
event in the region (30-40S 0-20W) in more than 50 years (a similar event
of M 6.4 hit near this epicenter on June 3, 1981). Earthquakes of similar
size were reported in the region on Aug. 2, 1939 and Sept. 20, 1946. No
earthquakes of M>6.5 have ever been located in the region. While this
event was of a magnitude that could generate a minor landslide tsunami,
tsunamis are seldom generated from mid-ocean ridge earthquakes and no tsunami
watch is being suggested. If a tsunami should occur it is unlikely to be
damaging on the west Africa and east South America coasts." (February 16, 2005)
O: 25JUN2025 22:16:17 35.5S 17.2W ML=6.2 EMSC SOUTHERN MIN-ATLANTIC RIDGE
The strongest earthquake in the U.S. or Canada today was an M 3.8 in the Fox
Islands, Alaska. NEIC reported it was felt with intensity III in Alaska at Unalaska. This event occurred within minutes of local solar noon and
was pobably promoted by high tidal stresses with today's new moon.
An earthquake of M 5.0 was also recorded today in the Norwegian Sea. NEIC did not
report that it was felt. It occurred within about an hour of local solar noon
and may have been promoted by strong tidal stresses with the new moon which
maximized within about two hours of this earthquake.
NEIC reported an earthquake of M 3.4 in Oklahoma was felt with intensity up to II-III in the area(s) of Oklahoma with IV in Braman and Nardin and in Arkansas City, Kansas. Also felt in Kansas with III in Louisburg, South Haven, and in Oklahoma at Ponca Cith, Tulsa and Blackwell.
NEIC reported an earthquake of M 3.4 in Northern Kansas was felt with intensity up to II-III in the area(s) of Northern Kansas with III in Glade, Kirwin, and II in Osborne and Stockton.
An earlier event of M 2.5 in northern Kansas was reported by NEIC to have been felt wit III in Overland Park and II in Lenexa.
NEIC reported an earthquake of M 4.3 in Tarapaca, Chile was felt with intensity up to II-III in the area(s) of Tarapaca, Chile with II.
The is antipodal to the position of TD 03W at the time and had been expected
at this time in the previous issues of this summary as:
"TD 03W continued today in the area south of Hong Kong, China with winds up to to 35 kts. It is expected to track to the west and north making landfall around June 26 south of Hong Kong. Regional seismic enhancement is likely in southeastern China. The antipode of this storm is at 20S 70W - an area of regional seismicity in southern Peru and northern Chile. It is likely some seismic enhancement will also occur in this area in the next two days." (June 25-26, 2025)
NEIC reported an earthquake of M 2.8 in Southern California was felt with intensity up to II-III in the area(s) of Southern California in Niland with intensity IV.
This M 2.8 in southern California occurred about 3 minutes after a strong GRB and
may have been promoted by it as noted in this summary.
"A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB" (June 25-26, 2025)
NEIC reported an earthquake of M 4.6 in Yunnan, China was felt with intensity up to II-III in the area(s) of Yunnan, China at Heyang, Chongqing.
NEIC reported earthquakes of M 4.5 and 4.2 in Eastern Greenland were felt with intensity up to II-III in the area(s) of eastern Greenland.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M 3.3 in South Africa was felt with intensity up to IV in the area(s) of South Africa in Stilfontein, Klerksdorp.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL DEPRESSION 03W
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 03W 2025-06-26 00:00 UT 20.1N 110.7E 35 kts south of Hong Kong, China
TD 03W continued today in the area south of Hong Kong, China with winds up to to 35 kts. It is expected to track to the west and north making landfall around June 26 south of Hong Kong. Regional seismic enhancement is likely in southeastern China. The antipode of this storm is at 20S 70W - an area of regional seismicity in southern Peru and northern Chile. It is likely some seismic enhancement will also occur in this area in the next two days.
TROPICAL STORM SEPAT (02W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SEPAT 2025-06-26 00:00 UT 35.7N 141.4E 35 kts E of Honshu, Japan
TS Sepat continued today in the area east of Honshu with winds up to to 35 kts. It is expected to track to the west and north. It could help trigger moderate regional seismicity in the area of eastern Honshu, Japan in the next several days. As the first tropical cyclone to hit Honshu, Japan this season, it may trigger a moderate to large earthquake in the area of eastern Honshu, Japan as it passes through that area around June 26-27. The antipode is at 35S 38W, an area off the east coast of South America in the Atlantic. Occasional quakes occur in this area (called the South Atlantic geomagnetic anomaly) and the broader area could see enhanced seismicity at this time.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3750 1824 1832 1837 C1.1 (June 25, 2025) 8.7E-04
Mariana Is. M 4.8 18:54 UT
3770 2105 2112 2118 C1.3 (June 25, 2025) 1.3E-03
3780 2118 2123 2125 C1.2 (June 25, 2025) 6.8E-04
Kansas M 3.4 21:18 UT
So. California M 2.6 21:17 UT
3810 2316 2324 2332 C1.2 (June 25, 2025) 1.1E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms June 26-27 active June 28. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 15 19 16 13:00 5 90 117
A strong Gamma Ray Burst was recorded by SWIFT on June 25, 2025 at 16:04:56 UT (#250625A). A preliminary UVOT Magnitude was not assigned to this GRB.
An M 2.8 in southern California occurred about 3 minutes later at 16:09 UT.
June 25, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 5.4 in the Nicobar Islands, India. NEIC reported it was felt with intensity up to IV in the epicentral area. and in Meuyungs, Koror, Palau and II in Ngetkip, Palau, Guam and in Maygatasan, Caraga and Katanagawan and Polonuling, Mindanao.
This epicenter has seen a swarm of moderate sized earthquakes over the past two days and today's M 5.4 is the largest to date in this series.
This epicenter is nearly antipodal to an M 6.1 in central Peru several days ago
and could have been activated by tidal and/or antipodal stresses assocuated with
today's new moon and the Peruvian earthquake.
"The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate." (June 22-23, 2025)
An unusual earthquake of M 4.5 also occurred today in northern Iran. It was lightly felt in the Gorgan, Iran area.
This continues a series of moderate events in northern Iran and western Afghanistan
coinciding with aerial bombardment in the recent war.
An earthquake of M 2.7 occurred near local solar noon today in Los Angeles, California. NEIC reported it was widely felt with intensity IV in Los Angeles, Van Nuys and North Hollywood with III in Los Angeles, West Hollywood, Beverly Hills, Glendale, Sun Valley, Panorama, Sherman Oaks, Encino, Burbank, Studio City, Valley Village, La Verne and Moorpark among others.
NEIC reported an earthquake of M 4.4 in Trinidad and Tobago was felt with intensity up to II-III in the area(s) of Trinidad and Tabago with III in Port of Spain and II in Sant George, Grenada.
EMSC reported moderate shaking in Trinidad and Tobago at Penal and Petit Valley.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M 4.3 in Eastern Honshu, Japan was felt with intensity up to IV in the area(s) of Eastern Honshu, Japan at Kashiwa, Urayasu, Musashino.
BMG reported an earthquake of M 5.3 in Tanimbar, Indonesia was felt with intensity up to IV in the area(s) of Tanimbar, Indonesia with II in Kab. Tanimbar, Selaru, Wer Tamrian, Wer Maktian and in Maluku at Dawelor Dawera.
GeoNet reported the following parameters for an earthquake of M 3.9-4.0 in Cook Strait, New Zealand today:
O: 24JUN2025 12:19:20 40.9S 174.5E MB=3.9 GEONET Felt with moderate to strong intensity in the area southeast of Levin, New Zealand and in southern North Island and northern South Island. 1866 reports of felt events were made of which 1157 reported weak and 674 light intensity with 30 reports of moderate shaking and 1 with strong and 2 severe and 1 with extreme intensity came from the area.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL DEPRESSION 03W
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 03W 2025-06-25 00:00 UT 18.5N 113.2E 35 kts Hong Kong, China
TD 03W formed today in the area south of Hong Kong, China with winds up to to 35 kts. It is expected to track to the west and north making landfall around June 25 near Hong Kong. Regional seismic enhancement is likely in southeastern China. The antipode of this storm is at 19S 67W - an area of regional seismicity in southern Peru and Bolivia. It is likely some seismic enhancement will also occur in this area in the next two days.
TROPICAL STORM SEPAT (02W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SEPAT 2025-06-25 00:00 UT 32.7N 139.6E 35 kts Izu Islands, Japan
TS Sepat continued today in the area south of Honshu, Japan in the Izu Islands with winds up to to 35 kts. It is expected to track to the west and north making landfall in southeastern Honshu, Japan around June 25-26. It could help trigger moderate regional seismicity in the Bonin and Izu Islands in the next several days. As the first tropical cyclone to hit Honshu, Japan this season, it may trigger a moderate to large earthquake in the area of eastern Honshu, Japan as it passes through that area around June 25-26.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3370 0019 0028 0043 C1.1 (June 24, 2025) 1.5E-03
Chiapas M 4.1 00:23 UT
3410 0339 0343 0357 C1.0 (June 24, 2025) 1.1E-03
3420 0440 0457 0531 C1.3 (June 24, 2025) 3.5E-03
Chiapas M 4.2 04:45 UT
3470 1221 1227 1229 C1.1 (June 24, 2025) 5.7E-04
Nicobar Is. M 4.5 12:22 UT
3500 1439 1447 1456 C1.3 (June 24, 2025) 1.3E-03
3510 1524 1545 1615 C3.1 (June 24, 2025) 7.7E-03
3560 2037 2052 2102 C1.1 (June 24, 2025) 1.6E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: major storms June 25 minor storms June 26 active June 27. Solar M-flare chance: 30% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 7 7 9 10:00 3 87 120
June 24, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 6.2 east of Mindanao, Philippines. NEIC reported it was felt with intensity III in Mindanao at Davao and Glan and in Meuyungs, Koror, Palau and II in Ngetkip, Palau, Guam and in Maygatasan, Caraga and Katanagawan and Polonuling, Mindanao.
EMSC reported heavy shaking in Mindanao at Mati, Davao, and in Palau at Koror Town and Ngetkib.
PHIVOLCS reported intensity III in the City of Bislig, Surigao del Sur, Tarragona and Boston, Davao Oriental and II in Surigao del Sur, Davao, Oriental, Sarangani, Davao del Norte, City of Davao, Davao del Sur and Cotabato.
Evacuations were conducted in Mindanao but there were no reports of major damage or casualties.
An earthquake of M 4.2 was widely felt today in the area of Albania. NEIC reported intensity IV in Albania at Tirana; III i Shijak, Durres and II in Mamurras, Kruje.
This earthquake may have been promoted by tidal stresses with the new moon
of June 25 as previously noted in this summary:
"The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate." (June 22-23, 2025)
An M 5.7 earthquake was widely felt in the areas of the Dominican Republic and Puerto Rico today. NEIC reported maximum intensity IV in Puerto Rico at Adjuntas, Aguada, Auadilla, Cabo Rojo, Utuado and III in Anasco, Arecibo, Camuy, Barceloneta and Castaner.
An M 4.5 aftershock occurred which was felt with loud rumbling in Dominican Republic at Otra Banda and Punta Cana and strongly in Ponce, Puerto Rico (EMSC data).
A foreshock of M 3.9 was felt with intensity IV in Otra Banda Dominican Republic and III in Puerto Rico at Ponce, Cayey, San Juan, Guaynabo, and Carolina.
This event occurred near local solar midnight and may have been promoted by
tidal and/or geomagnetic stresses which maximize near this hour. The epicenter
is near sub-solar at this time of June. This has not been lost to this
audience in the past several days as it was reported:
"Because of its location near the Tropic of Capricorn, Mexico is no stranger to
major earthquakes near the summer solstice when the sun is directly overhead.
Such events occurred in 1897 (M 7.0); 1916 (M 7.1); 1928 (M 8.0) and 1982 (M 7.2)
among others. This relation had been noted in the previous issues of this report as:
"On the first day of summer in the northern hemisphere, the sun reaches its zenith at about 23 degree North latitude
due to the tilt of the earth's axis. Vertical tidal triggering is therefore
maximized near 23 North latitude at this time of year. Seismicity can be
seen to increase at this latitude as well as evidenced by today's India earthquake at 23 North
latitude ... (June 22, 2020, June 19, 2025)
Another unusual earthquake at 24 North latitude (sub-solar) today occurred in the area of Guangzhou, China north of Hong Kong. NEIC reported it was felt in Guangdong, China with intensity III in Dongguan, Xinan, Zhuhai and in Hong Kong at Xianggangdao and Yuanlong and in Aomen, China.
EMSC reported light to moderate shaking in China at Yayao, Jiulong, Tongde, Changxing, Guangzhou, Zumiao, Nanzhuang, and Henglan.
In the past several years a pattern has been emerging in the western U.S. and Canadian
seismicity during the early summer weeks. This has generally involved a series
of moderate to large earthquakes in southern Alaska and the U.S. and Canadian
area around British Columbia, Washington and Oregon including offshore volcanism. Over several days this
enhanced seismicity migrated to the south often culminating in early July
with a strong to major earthquake in Central or southern California and/or Nevada. This
is not a difficult pattern to discern, especially in times of low global and
regional seismicity as is current (no earthquakes in the world of M>=6.5
in nearly two months and the last swarm of such event in late March and early
April, 2025). Readers are advised to watch for this general pattern in
the next two weeks.
The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate.
NEIC reported an earthquake of M 4.3 in Crete, Greece was felt with intensity up to II-III in the area(s) of Crete, Greece with II in Karathos, Dodecanese Islands.
NEIC reported an earthquake of M 4.0 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska with III in Denali National Park and II in McGrath.
NEIC reported an earthquake of M 5.4 in Guam was felt with intensity up to II-III in the area(s) of Guam with III in Dededo and II in Hagatna, Tamuning, Santa Rita, Mangilao, Mongmong.
NEIC reported an earthquake of M 4.8 in Cyprus was felt with intensity up to II-III in the area(s) of Cyprus at Larnaca with IV and in Gazimagusa.
EMSC reported moderate shaking in Cyprus at Ayia Napa, Paralimni, Larnaca, Deryneia, Dhromolaxia, Voroklini, Aradippou among others.
NEIC reported an earthquake of M 4.3 in Greece was felt with intensity up to II-III in the area(s) of Greece at Karpathos.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M 4.3 in Central Turkey was felt with intensity up to IV in the area(s) of Central Turkey at Saimbeyli, Goksun, Tomarza, Develi, Afsin, Kozan, Kadirli, Elbistan, Talas, Kayseri among others.
EMSC reported an earthquake of M 4.2 in Coquimbo, Chile was felt with intensity up to IV in the area(s) of Coquimbo, Chile at Vicuna and La Serena.
CSN gave the following parameters for this earthquake:
24-06-2025 02:58 29.34S 71.53W 64 4.3 III Coquimbo at Coquimbo, Vicuna, Rio Hurtado and II in Paiguano and La Higuera, Chile.
EMSC reported an earthquake of M 4.3 in Argentina was felt with intensity up to IV in the area(s) of Argentina at La Rioja.
GeoNet reported the following parameters for an M 4.1 in South Island, New Zealand today.
O: 23JUN2025 20:37:46 45.4S 167.1E MB=4.1 GEONET Felt with weak intensity in the area south of Te Anau, South Island. 1 reports of felt intensity came from the area east and north of the epicenter including 1 with weak intensity; 0 light; 0 moderate; 0 strong; 0 severe and 0 extreme.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL STORM SEPAT (02W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SEPAT 2025-06-24 00:00 UT 30.0N 140.4E 45 kts Izu Islands, Japan
TS Sepat continued today in the area south of Honshu, Japan in the Izu Islands with winds up to to 45 kts. It is expected to track to the west and north making landfall in southeastern Honshu, Japan around June 25-26. It could help trigger moderate regional seismicity in the Bonin and Izu Islands in the next several days. As the first tropical cyclone to hit Honshu, Japan this season, it may trigger a moderate to large earthquake in the area of eastern Honshu, Japan as it passes through that area around June 25-26.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
3100 0055 0059 0104 C1.0 (June 23, 2025) 6.2E-04
Java M 4.7 00:56 UT
North Atlantic M 3.8 00:51 UT
3120 0209 0217 0225 C1.3 (June 23, 2025) 1.2E-03
Ryukyu M 4.0 02:10 UT
3140 0327 0333 0353 C1.4 (June 23, 2025) 2.0E-03
Ryukyu M 4.2 03:33 UT
3150 0456 0506 0516 C2.0 (June 23, 2025) 2.0E-03
3170 0538 0547 0552 C3.4 (June 23, 2025) 2.0E-03
3190 0702 0706 0710 C1.0 (June 23, 2025) 5.2E-04
3230 1209 1223 1236 C5.0 (June 23, 2025) 5.4E-03
Cyprus M 4.3 12:37 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active June 24 major storms June 25 minor storms June 26. Solar M-flare chance: 35% X-class: 10% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 10 9 10:00 4 105 122
June 23, 2025
Notable earthquakes and events:
In the past several years a pattern has been emerging in the western U.S. and Canadian
seismicity during the early summer weeks. This has generally involved a series
of moderate to large earthquakes in southern Alaska and the U.S. and Canadian
area around British Columbia, Washington and Oregon including offshore volcanism. Over several days this
enhanced seismicity migrated to the south often culminating in early July
with a strong to major earthquake in Central or southern California and/or Nevada. This
is not a difficult pattern to discern, especially in times of low global and
regional seismicity as is current (no earthquakes in the world of M>=6.5
in nearly two months and the last swarm of such event in late March and early
April, 2025). Readers are advised to watch for this general pattern in
the next two weeks.
The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate.
NEIC reported an earthquake of M 3.7 in Nevada was felt with intensity up to II-III in the area(s) of Nevada at Glenbrook.
NEIC reported an earthquake of M 4.7 South of Java, Indonesia was felt with intensity up to II-III in the area(s) of Java, Indonesia at Karawang.
NEIC reported an earthquake of M 3.4 in the Geysers, California was felt with intensity up to II-III in the area(s) of the Geysers, California with V in Middletown, IV in Pleasant Hill and II in Oakland, Clearlake, Healdsburg and Kelseyville.
NEIC reported an earthquake of M 3.2 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska with III in Skwentna and II in Willow.
NEIC reported an earthquake of M 3.3 off the coast of Northern California was felt with intensity up to II-III in the area(s) of Northern California with III in Eureka, Arcata, Bayside, Blue Lake, and II in McKinleyville, Carlotta, Ferndale, Fortuna and Hoopa.
NEIC reported an earthquake of M 3.5 in the Andreanof Islands, Alaska was felt with intensity up to II-III in the area(s) of the Andreanof Islands, Alaska with II in the epicentral area.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M 4.5 in Mindanao, Philippines was felt with intensity up to IV in the area(s) of Mindanao, Philippines at Davao.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL STORM SEPAT (02W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS SEPAT 2025-06-23 00:00 UT 25.9N 143.9E 45 kts Bonin Islands, Japan
TS Sepat continued today in the area south of Honshu, Japan in the Bonin Islands with winds up to to 45 kts. It is expected to track to the west and north making landfall near June 19 near Acapulco and Punta Escondida, Guerrero, Mexico. It could help trigger a moderate to large earthquake along coastal Mexico or south of Chiapas, Mexico in the next day or two. A strong earthquake of M 5.8-6.2 hit near the eye of Hurricane Erick today. The antipode at that time is 16S 82E - an aseismic zone where little antipodal activity is expected. This storm is tracking to the northwest. It may enhance regional seismicity in the Bonin and Izu Islands in the next several days. As the first tropical cyclone to hit Honshu, Japan this season, it may trigger a moderate to large earthquake in the area of eastern Honshu, Japan as it passes through that area around June 25-26.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2910 0306 0315 0319 C1.3 (June 22, 2025) 8.4E-04
Bio-Bio Chile M 4.1 03:19 UT
Ryukyu Is. M 4.5 M 4.8 03:12 UT, 03:37 UT
2940 0557 0602 0606 C1.0 (June 22, 2025) 5.8E-04
2980 1057 1101 1103 C1.3 (June 22, 2025) 4.5E-04
3020 1734 1741 1747 C1.5 (June 22, 2025) 9.1E-04
Ryukyu Is. M 3.5 17:34 UT
Guatemala M 4.3 17:56 UT
3040 1835 1842 1848 C1.0 (June 22, 2025) 8.0E-04
Ryukyu Is. M 4.7 18:33 UT
3050 1923 1933 1941 C1.1 (June 22, 2025) 1.1E-03
3070 2141 2146 2200 C1.2 (June 22, 2025) 1.4E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active June 23-24 minor storms June 25. Solar M-flare chance: 45% X-class: 10% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 14 9 17:00 4 80 125
June 22, 2025
Notable earthquakes and events:
The strongest earthquake in the world today was an M 6.1 in Hokkaido, Japan. NEIC reported it was felt with intensity II in Hokkaido at Bihoro.
EMSC reported it was felt with moderate intensity in Russia at Yuzhno-Kurilsk.
A foreshock of M 4.9 was not reported felt.
In the past several years a pattern has been emerging in the western U.S. and Canadian
seismicity during the early summer weeks. This has generally involved a series
of moderate to large earthquakes in southern Alaska and the U.S. and Canadian
area around British Columbia, Washington and Oregon including offshore volcanism. Over several days this
enhanced seismicity migrated to the south often culminating in early July
with a strong to major earthquake in Central or southern California and/or Nevada. This
is not a difficult pattern to discern, especially in times of low global and
regional seismicity as is current (no earthquakes in the world of M>=6.5
in nearly two months and the last swarm of such event in late March and early
April, 2025). Readers are advised to watch for this general pattern in
the next two weeks.
The new moon will arrive on June 25, 2025 at 10:31 UT. Longitudes which are a local solar noon are near 20 East while those at local solar midnight are near 155 West. In the west these include Hawaii, the Alaska Peninsula, portions of the Pacific-North American coastline and portions of the southern Pacific Rise while in the east area near this longitude include Greece and the Aegean Sea, Italy and other areas, such as Romania in eastern Europe and portions of the East African Rift. These areas are the most likely to see significant tidal triggering in the next week but other areas may also see effects of strong tidal stresses associated with this gravitational alignment. This summary estimates the chances of a major earthquake with this new moon are moderate.
NEIC reported an earthquake of M 4.4 in Southern Iran was felt with intensity up to II-III in the area(s) of Southern Iran in Bushehr.
NEIC reported an earthquake of M 2.5 in Central California was felt with intensity up to II-III in the area(s) of Central California with III in Hollister and II at Morgan Hill.
NEIC reported an earthquake of M 5.2 in Ecuador was felt with intensity up to II-III in the area(s) of Ecuador in Guayas with IV in El Triungo, Guayaquil, Santa Lucia; III in Eloy Alfaro, Cuenca Azuay and Machala and II in Latacunga, Cotopaxi and in Cali Valle del Cauca, Colombia.
EMSC reported moderate to strong shaking in Guayaquil, Santa Lucia, Eloy Alfaro, Cuenca, Machala, Zaruma, Santo Domingo de los Colorados, Quito, Tutamandahostel.
NEIC reported an earthquake of M 4.8 South of Sumatra, Indonesia was felt with intensity up to II-III in the area(s) of South of Sumatra, Indonesia in Karawang, Java.
EMSC reported moderate shaking in Indonesia at Cangkeuteuk Sabrang.
NEIC reported an earthquake of M 2.6 in Southern California was felt with intensity up to II-III in the area(s) of Southern California at Long Beach.
NEIC reported an earthquake of M 4.5 in the Ionian Sea, Greece was felt with intensity up to II-III in the area(s) of the Ionian Sea, Greece with IV in Lixourion, Kefallinia, III in Sami and Kataastarion, Zakinthos and Planos and II in Argostolion, Greece.
NEIC reported an earthquake of M 4.4 in O'Higgins, Chile was felt with intensity up to II-III in the area(s) of O'Higgins, Chile at Machali.
EMSC reported moderat shaking in Talcahuano, Concepcion, Chiguayante, Coronel.
CSN provided the following data for this earthquake:
22-06-2025 03:19 36.56S 72.88W 44 4.1 IV Bio-Bio at Concepcion, Chiguayante, Hualpen, Tome Talcahuano, IIII in Coronel, San Pedro de la Paz, Florida, Lota, Penco; IV in Nuble at Quirihue, Coelemu, Cobquecura IV in Trehuaco, Ranquil, III in San Carlos, Chile.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M 3.9 in Myanmar was felt with intensity up to IV in the area(s) of Myanmar in Mandalay, Pyin Oo Lwin.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
No tropical cyclones are currently active
A tropical cyclone may be forming in the area of the Volcano Islands, Japan. This system is currently at 22N 146E with winds up to 25 kt and tracking to the northwest. It may enhance regional seismicity in the Volcano and Bonin Islands in the next several days.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2800 0100 0105 0107 C2.0 (June 21, 2025) 7.4E-04
Central Peru M 4.7 01:18 UT
Loyalty Is. M 4.6 01:26 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: unsettled June 22 active June 23-24. Solar M-flare chance: 55% X-class: 10% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 12 22 10 19:00 6 87 120
June 21, 2025
Notable earthquakes and events:
An earthquake of M 5.1 occured east of Tehran, Iran today. NEIC reported it was felt with intensity IV in Tehran.
EMSC reported moderate shaking in Hashtgerd, Iran.
This earthquake occurred near one of the nuclear facilities in northern Iran
and some on the internet have questioned whether it was induced by regional
explosions or a naturally occurring earthquake (there is little question such
an event did occur today as it was recorded on seismograms worldwide). The proximity
to regional explosions in the on-going clash and to known nuclear sites however
a more discerning explanation of this event in this summary.
First, this is not an everyday earthquake. The last earthquake within about
200 km of this epicenter in Iran of M>=5.1 occurred as an M 5.2 on January 11, 2012, but the last of
significantly larger magnitude in this region was an M 5.7 on August 27, 2010 and prior to that an M 6.0 on January 20, 1990.
At the time of the event on January 11, 2012, this summary noted:
A moderately strong quake of M 4.8 hit the Iranian provinces of Mazandaran
and Glestan today. It caused fear and panic among residents of central
and eastern Mazandaran but there were no damages or casualties immediately
reported. The epicenter was near the city of Babol where phone and electricity
services were out. Shaking panicked citizens in the northern Iranian cities
of Sari, Neka, and Mehshahr and was also felt in the capital city of Tehran.
EMSC reported 15 people reported feeling this earthquake. One noted that
he had noticed a haze near the volcano in the Damavand mountain north of
Tehran and had had felt a number of minor quakes in the past several days.
This is the strongest earthquake in Northern Iran since an M 5.7 on August
27, 2010." (January 11, 2012)
and
"A series of moderate earthquakes beginning with an M 4.7 in Turkmenistan
and an M 5.7 in northern Iran occurred today. The largest of this set of four
earthquakes occurred in the region of Teheran and was felt with intensity
II-III within about 300 km of the epicenter. NEIC reported felt activity
in the region of Teheran at Eslam Shahr, Europus, Karaj, Qarchak, Qods and Shahriyar
and in the area of Mazandara, at Ashraf and Sari. It was also reported
felt at Emamshahr, Semnan, Iran. An aftershock of M 4.8 was reported felt
with intensity II in Europus, Iran.
...
IRNA reported this earthquake hit Damghan town in the central province
of Semnan damaging six villages and leaving 3 dead including an elderly woman and 2 children
and at least 40 injured. The epicenter was located in the desert, Dsaht -e Kavir,
a relatively unpopulated region reducing the damage. In one village at
least 15 homes were damaged." (August 27, 2010)
Today's earthquake in Iran followed a major X1.9-class solar flare earlier
that began late on UT June 19 as reported in this summary in the previous issue:
"A major X1.9 class solar flare occurred today. This is the strongest solar flare recorded by SWPC since an X2.7 on May 14, 2025 (#3410).
An unusual earthquake of M 4.5 in western Afghanistan accompanied the flare. That event
was reported by EMSC to have been felt lightly in Afghanistan at Herat, and Injil.
This epicenter is several km east of Tehran, Iran where extensive bombing has been
occurring in the past week. Shaking associated with that bombing may have helped
promote today's activity in Afghanistan. This earthquake near Herat, Afghanistan
is the area within about 200 km of this epicenter since an M 4.5 on January 21, 2024. The last of
larger magnitude was an M 5.0 on October 28, 2023" (June 20, 2025)
O: 20JUN2025 17:49:16 35.4N 53.0E MB=5.1 EMSC NORTHERN IRAN
P: 17JUN2025 173092 37.0N 55.0E 3.8-5.2 BBBAA No. Iran
O: 20JUN2025 11:58:41 36.9N 53.5E ML=3.3 EMSC NORTHERN IRAN
P: 17JUN2025 173092 37.0N 55.0E 3.8-5.2 BABAA No. Iran
Most interesting from the induced-natural earthquake view the earthquake
in Northern Iran coincided with a strong M1.0-class solar flare near local
solar noon and near the peak output of that flare. This was the strongest independent solar flare of the day reported by SWPC.
Parameters for this solar flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2730 1721 1740 1759 M1.0 (June 20, 2025) 1.5E-02
Iran M 5.1 17:49 UT
So, in terms of mechanisms involved in this earthquake in Iran, it is the view of this summary that it was probable
it was triggered by SFE from solar flare 2730 and likely to have been promoted
by regional shaking associated with the current bombing in the region and that
it is a natural earthquake.
A series of moderate earthquakes also occurred near the IDL today in Fiji, Tonga,
the Kermadec Islands and New Zealand. A second series occurred in the Atlantic
Basin in the South Sandwich Islands area, the Central Mid-Atlantic, Azores and as far north as Greenland.
These appear to be related to the X1.9 flare at local midnight and local solar
noon in these areas of June 19-20, 2025.
O: 20JUN2025 09:53:39 3.1N 31.3W mb=4.7 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 21JUN2025 04:02:04 3.1N 31.4W mb=4.8 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 20JUN2025 11:42:54 2.9N 31.4W MB=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
P: 14JUN2025 172993 4.0N 32.0W 4.0-5.9 CAAAA Central Mid-Atlantic Ridg
O: 21JUN2025 00:46:52 42.1N 29.2W ML=4.1 EMSC AZORES ISLANDS REGION
P: 18JUN2025 173144 42.0N 29.0W 4.0-5.7 BAAAA No. Mid-Atlantic Ridge
O: 20JUN2025 18:40:26 57.8S 9.2W MB=4.9 EMSC EAST OF SOUTH SANDWICH ISLANDS
O: 20JUN2025 10:21:30 60.7S 19.8W MB=5.1 EMSC EAST OF SOUTH SANDWICH ISLANDS
P: 19JUN2025 173236 60.0S 26.0W 4.0-6.0 AACAA So. Sandwich Islands
O: 21JUN2025 07:28:00 64.5N 39.8W MB=4.5 EMSC NORTH ATLANTIC OCEAN
P: 17JUN2025 173170 59.0N 31.0W 4.0-5.4 BCBAA North Mid-Atlantic Ridge
O: 21JUN2025 01:26:25 21.2S 168.6E MB=4.6 EMSC LOYALTY ISLANDS
O: 20JUN2025 13:18:35 22.3S 171.5E MB=4.6 EMSC SOUTHEAST OF LOYALTY ISLANDS
P: 17JUN2025 173208 22.0S 170.0E 4.0-5.7 BAAAA Loyalty Islands
O: 21JUN2025 07:23:59 23.9S 179.9W MB=4.3 EMSC SOUTH OF FIJI ISLANDS
P: 14JUN2025 173216 23.0S 177.0W 4.0-5.8 CACAA Tonga Islands
O: 21JUN2025 06:42:00 33.1S 179.6E MW=4.2 EMSC SOUTH OF KERMADEC ISLANDS
O: 20JUN2025 17:54:38 34.5S 179.2E ML=4.0 EMSC SOUTH OF KERMADEC ISLANDS
O: 20JUN2025 12:34:01 33.6S 179.1E ML=3.9 EMSC SOUTH OF KERMADEC ISLANDS
P: 18JUN2025 173226 34.0S 179.0W 4.0-5.8 AAAAA So. Kermadec Islands
O: 20JUN2025 11:25:56 46.7S 166.9E ML=3.2 EMSC OFF W. COAST OF S. ISLAND, N.Z
O: 20JUN2025 22:52:24 45.5S 167.1E ML=4.2 EMSC SOUTH ISLAND OF NEW ZEALAND
O: 20JUN2025 15:09:30 46.1S 165.9E ML=3.0 EMSC OFF W. COAST OF S. ISLAND, N.Z.
P: 20JUN2025 173232 46.0S 167.0E 3.0-5.3 AAAAA Southern S. Isl. N.Z.
P: 20JUN2025 173232 47.0S 165.0E 3.0-5.1 AAAAA So. Island, N.Z.
O: 20JUN2025 09:21:12 51.4N 178.7W ML=2.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 12JUN2025 173164 51.6N 177.6W 3.5-4.9 CAAAA Andreanoff Isls, Aleutians
NEIC reported an earthquake of M 4.8 in the Kiklades, Dodecanese Islands, Greece was felt with intensity up to II-III in the area(s) of the Kiklades, Dodecanese Islands, Greece with IV in Mesaria; III in Emborion, Naxos ad II in Ermoupolis and Paros.
NEIC reported an earthquake of M 3.4 in northern California was felt with intensity up to II-III in the area(s) of northern California in Eureka, Rio Dell.
NEIC reported an earthquake of M 3.4 off the coast of northern California was felt with intensity up to II-III in the area(s) of northern California in Redding and Healdsburg.
O: 20JUN2025 07:49:39 40.4N 125.1W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 20JUN2025 07:49:39 40.4N 125.1W ML=3.4 ANSS OFFSHORE NORTHERN CALIFORNIA
O: 19JUN2025 09:59:19 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 19JUN2025 173148 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
NEIC reported an earthquake of M 2.6 in Central California was felt with intensity up to II-III in the area(s) of Central California with III in San Francisco and II in Gilroy and San Juan Bautista.
This event occurred within minutes of local solar midnight adding to a growing
number of such events recent days in the area. It follows an X1.9 solar flare
at 23:55 on June 19 and may have been promoted by energy from that flare.
NEIC reported an earthquake of M 2.5 in Northern California was felt with intensity up to II-III in the area(s) of Northern California in Willits.
O: 20JUN2025 07:23:51 36.9N 121.6W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 18JUN2025 173076 36.9N 121.7W 2.5-4.6 AAAAA Central California
NEIC reported an earthquake of M 4.9 in Taiwan was felt with intensity up to II-III in the area(s) of Taiwan in Kaohsiung at Fengshan.
GeoNet reported the following parameters for events of M>=4 felt in South Island today:
O: 20JUN2025 11:25:38 47.9S 165.4E MB=4.2 GEONET Felt weakly by 5 and lightly by 1 and with severe intensity by 0 respondents in Southern South Island and in Snares Island, New Zealand.
O: 20JUN2025 22:52:21 45.4S 166.8E MB=4.2 GEONET Felt with weak intensity in the area south of Te Anau, South Island. 2 reports of felt intensity came from the area east and north of the epicenter including 2 with weak intensity; 0 light; 0 moderate; 0 strong; 0 severe and 0 extreme.
EMSC reported an earthquake of M 4.2 in Java, Indonesis was felt with intensity up to IV in the area(s) of Java, Indonesia in Kebontiwu.
EMSC reported an earthquake of M 4.1 in Guatemala was felt with intensity up to IV in the area(s) of Guatemala at Antigua Guatemala.
EMSC reported an earthquake of M 4.8 in Crete was felt with intensity up to IV in the area(s) of Crete at Chania.
No tropical cyclones are currently active
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2550 2337 2350 2354 X1.9 (June 19, 2025) 6.7E-02
2560 0002 0004 0006 M4.6 (June 20, 2025) 1.2E-02
Northeastern Iran M 3.1, 23:39 UT M 3.3 00:55 UT
Andreanof Is. M 2.1 23:54 UT
2630 0856 0903 0910 C1.1 (June 20, 2025) 8.9E-04
2660 1258 1305 1308 C1.1 (June 20, 2025) 6.3E-04
Loyalty Is. M 4.6 13:18 UT
2710 1501 1504 1506 C3.6 (June 20, 2025) 9.5E-04
2730 1721 1740 1759 M1.0 (June 20, 2025) 1.5E-02
No. Iran M 5.1 17:49 UT
Mayotte M 3.5 17:48 UT
Ceram M 4.5 17:30 UT
Kermadec M 4.0 17:54 UT
2760 1838 1848 1851 C2.2 (June 20, 2025) 1.7E-03
So. Atlantic Ocean M 4.9 18:40 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: unsettled June 21-22 active June 23. Solar M-flare chance: 65% X-class: 15% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 8 13 8 18:00 4 95 130
A strong Gamma Ray Burst was recorded by SWIFT on June 17, 2025 at 21:01:50 UT (#250617B). A preliminary UVOT Magnitude of V>18.72 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 15, 2025 at 22:25:29 UT (#250615A). A preliminary UVOT Magnitude of V>19.5 was assigned to this GRB.
An earthquake of M 4.0 was recorded in southern Peru - also at 22:25 on June 15, 2025.
A strong Gamma Ray Burst was recorded by SWIFT on June 12, 2025 at 01:02:05 UT (#250612A). No preliminary UVOT Magnitude was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 5, 2025 at 18:52:31 UT (#250605A). A preliminary UVOT Magnitude of V>20.07 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 3, 2025 at 01:10:23 UT (#250603A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 30, 2025 at 18:58:42 UT (#250530C). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 20, 2025 at 02:42:17 UT (#250520A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
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.
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); Reykjanes Ridge (RDIS), 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
06 21 08 00 2025 -33.7 -70.4 4.2 REGION METROPOLITANA, CHILE M163 SG80 T89 D23 MA84 Z84 R92 NG127
06 21 07 50 2025 18.3 -66.3 3.0 PUERTO RICO M136 SG132 T112 D74 MA132 Z129 R43 NG75
06 21 07 28 2025 64.5 -39.8 4.5 NORTH ATLANTIC OCEAN M87 SG177 T126 D122 MA167 Z158 R11 NG29
06 21 07 23 2025 -23.9 -179.9 4.3 SOUTH OF FIJI ISLANDS M93 SG49 T6 D81 MA35 Z27 R141 NG110
06 21 07 20 2025 40.4 -125.4 2.9 OFFSHORE NORTHERN CALIFORNIA M106 SG129 T75 D108 MA116 Z107 R60 NG50
06 21 06 42 2025 -33.1 179.6 4.2 SOUTH OF KERMADEC ISLANDS M96 SG41 T14 D73 MA27 Z18 R149 NG119
06 21 06 03 2025 14.6 -92.5 4.0 OFFSHORE CHIAPAS, MEXICO M142 SG120 T87 D73 MA114 Z109 R60 NG78
06 21 05 52 2025 -7.7 108.4 4.5 JAVA, INDONESIA M31 SG59 T75 D115 MA59 Z62 R124 NG93
06 21 04 51 2025 17.8 -65.4 3.3 PUERTO RICO REGION M136 SG131 T112 D74 MA132 Z129 R43 NG76
06 21 04 46 2025 34.2 -117.6 2.0 SOUTHERN CALIFORNIA M115 SG127 T76 D99 MA115 Z107 R60 NG57
06 21 04 13 2025 36.5 -121.1 2.1 CENTRAL CALIFORNIA M112 SG128 T75 D103 MA115 Z106 R60 NG54
06 21 04 02 2025 3.1 -31.4 4.8 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R49 NG91
06 21 03 32 2025 -1.2 -80.8 4.0 NEAR COAST OF ECUADOR M159 SG109 T92 D56 MA108 Z104 R67 NG94
06 21 02 26 2025 62.2 -151.0 3.0 CENTRAL ALASKA M80 SG137 T84 D134 MA123 Z115 R55 NG26
06 21 02 13 2025 36.9 -104.8 2.6 NEW MEXICO M118 SG135 T86 D98 MA124 Z116 R51 NG55
06 21 02 06 2025 38.8 -122.8 2.1 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 R59 NG52
06 21 01 53 2025 15.1 -93.2 4.0 OFFSHORE CHIAPAS, MEXICO M142 SG121 T86 D74 MA114 Z108 R60 NG77
06 21 01 26 2025 -21.2 168.6 4.6 LOYALTY ISLANDS M82 SG48 T16 D88 MA34 Z27 R144 NG107
06 21 01 18 2025 -13.0 -74.6 4.7 CENTRAL PERU M167 SG100 T94 D43 MA100 Z99 R74 NG106
06 21 00 54 2025 39.7 -120.0 2.2 NEVADA M110 SG131 T78 D105 MA118 Z109 R57 NG51
06 21 00 46 2025 42.1 -29.2 4.1 AZORES ISLANDS REGION M98 SG156 T143 D103 MA167 Z168 R11 NG52
06 20 22 52 2025 -45.5 167.1 4.2 SOUTH ISLAND OF NEW ZEALAND M93 SG25 T29 D68 MA11 Z3 R164 NG131
06 20 22 04 2025 33.3 -116.3 2.3 SOUTHERN CALIFORNIA M117 SG127 T76 D98 MA115 Z107 R60 NG58
06 20 21 47 2025 31.6 -104.0 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 20 21 00 2025 6.7 126.8 4.3 MINDANAO, PHILIPPINES M33 SG70 T64 D128 MA65 Z64 R117 NG79
06 20 20 45 2025 38.5 -116.5 2.7 NEVADA M112 SG131 T79 D103 MA119 Z110 R56 NG52
06 20 20 26 2025 44.7 150.3 4.6 EAST OF KURIL ISLANDS M49 SG108 T72 D153 MA98 Z93 R82 NG41
06 20 20 11 2025 -3.0 139.5 4.1 PAPUA, INDONESIA M49 SG60 T48 D116 MA52 Z50 R129 NG88
06 20 19 17 2025 45.7 148.8 4.3 KURIL ISLANDS M48 SG109 T73 D154 MA99 Z94 R81 NG40
06 20 18 40 2025 -57.8 -9.2 4.9 EAST OF SOUTH SANDWICH ISLANDS M116 SG55 T101 D30 MA67 Z74 R112 NG151
06 20 18 21 2025 5.2 126.8 4.3 MINDANAO, PHILIPPINES M34 SG69 T63 D127 MA63 Z62 R119 NG80
06 20 18 09 2025 31.3 138.5 4.4 IZU ISLANDS, JAPAN REGION M38 SG94 T68 D148 MA86 Z82 R95 NG54
06 20 17 54 2025 -34.5 179.2 4.0 SOUTH OF KERMADEC ISLANDS M96 SG39 T15 D72 MA25 Z17 R150 NG120
06 20 17 49 2025 35.4 53.0 5.1 NORTHERN IRAN M39 SG117 T136 D135 MA124 Z129 R60 NG54
06 20 17 48 2025 -12.7 45.5 3.5 MAYOTTE REGION M60 SG78 T129 D91 MA90 Z99 R93 NG102
06 20 17 30 2025 -3.7 131.5 4.5 CERAM SEA, INDONESIA M43 SG60 T55 D117 MA53 Z52 R129 NG89
06 20 17 05 2025 31.7 -104.3 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 20 16 37 2025 42.8 146.4 4.0 OFF COAST OF HOKKAIDO, JAPAN M46 SG106 T72 D154 MA96 Z92 R84 NG43
06 20 16 31 2025 -18.0 -178.4 4.6 FIJI REGION M92 SG55 T4 D85 MA41 Z33 R135 NG104
06 20 16 23 2025 29.3 -116.2 3.8 OFFSHORE BAJA CALIFORNIA, MEXI M120 SG124 T74 D94 MA112 Z104 R63 NG62
06 20 16 18 2025 36.7 25.8 4.8 DODECANESE ISLANDS, GREECE M61 SG130 T156 D121 MA141 Z148 R43 NG55
06 20 15 52 2025 31.4 -115.6 3.2 BAJA CALIFORNIA, MEXICO M118 SG126 T75 D96 MA114 Z106 R61 NG59
06 20 15 09 2025 -46.1 165.9 3.0 OFF W. COAST OF S. ISLAND, N.Z. M92 SG24 T30 D67 MA10 Z2 R165 NG131
06 20 14 28 2025 -16.4 -74.0 4.1 NEAR COAST OF SOUTHERN PERU M168 SG96 T93 D40 MA98 Z97 R77 NG109
06 20 13 54 2025 37.6 -117.7 2.3 NEVADA M112 SG130 T78 D102 MA118 Z109 R58 NG53
06 20 13 53 2025 34.8 23.3 4.9 CRETE, GREECE M63 SG130 T159 D119 MA141 Z148 R43 NG57
06 20 13 33 2025 40.5 -127.3 2.8 OFF COAST OF NORTHERN CALIFORNIA M105 SG128 T74 D108 MA115 Z106 R61 NG50
06 20 13 28 2025 40.6 -127.6 2.9 OFF COAST OF NORTHERN CALIFORN M105 SG128 T74 D109 MA115 Z106 R61 NG49
06 20 13 18 2025 -22.3 171.5 4.6 SOUTHEAST OF LOYALTY ISLANDS M85 SG48 T13 D86 MA34 Z26 R143 NG108
06 20 12 47 2025 36.4 -121.0 2.0 CENTRAL CALIFORNIA M112 SG127 T75 D103 MA115 Z106 R60 NG54
06 20 12 34 2025 -33.6 179.1 3.9 SOUTH OF KERMADEC ISLANDS M96 SG40 T14 D73 MA26 Z18 R149 NG120
06 20 12 28 2025 14.9 -93.8 4.2 OFFSHORE CHIAPAS, MEXICO M142 SG120 T86 D74 MA114 Z108 R60 NG77
06 20 11 58 2025 36.9 53.5 3.3 NORTHERN IRAN M39 SG118 T135 D136 MA125 Z129 R59 NG53
06 20 11 42 2025 2.9 -31.4 5.0 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 20 11 25 2025 -46.7 166.9 3.2 OFF W. COAST OF S. ISLAND, N.Z M93 SG24 T30 D67 MA10 Z1 R165 NG132
06 20 10 21 2025 -60.7 -19.8 5.1 EAST OF SOUTH SANDWICH ISLANDS M121 SG54 T96 D24 MA65 Z71 R114 NG154
06 20 10 01 2025 14.0 -91.4 4.5 GUATEMALA M143 SG120 T87 D73 MA115 Z109 R60 NG78
06 20 09 53 2025 3.1 -31.3 4.7 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R49 NG91
06 20 09 31 2025 16.4 -93.8 4.2 CHIAPAS, MEXICO M140 SG122 T86 D76 MA115 Z109 R59 NG76
06 20 09 21 2025 51.4 -178.7 2.0 ANDREANOF ISLANDS, ALEUTIAN IS M70 SG120 T71 D140 MA107 Z100 R71 NG35
06 20 08 56 2025 31.7 -104.1 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 20 08 21 2025 31.0 -103.6 2.0 WESTERN TEXAS M124 SG131 T84 D92 MA120 Z113 R54 NG61
06 20 08 03 2025 31.5 -115.1 3.1 BAJA CALIFORNIA, MEXICO M119 SG126 T76 D96 MA114 Z106 R60 NG59
06 20 07 56 2025 -6.9 129.8 4.4 BANDA SEA M43 SG56 T56 D114 MA51 Z50 R131 NG92
06 20 07 49 2025 40.4 -125.1 3.1 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 R60 NG50
06 20 07 35 2025 31.7 -104.4 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 20 07 23 2025 36.9 -121.6 2.5 NORTHERN CALIFORNIA M111 SG128 T75 D103 MA115 Z106 R60 NG54
06 20 06 58 2025 62.5 -151.2 3.1 CENTRAL ALASKA M80 SG137 T84 D135 MA123 Z115 R54 NG26
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: 21JUN2025 03:32:49 1.2S 80.8W ML=4.0 EMSC NEAR COAST OF ECUADOR
P: 19JUN2025 173012 1.0S 81.0W 4.0-5.7 AAAAA Ecuador
O: 20JUN2025 09:53:39 3.1N 31.3W mb=4.7 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 21JUN2025 04:02:04 3.1N 31.4W mb=4.8 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 20JUN2025 11:42:54 2.9N 31.4W MB=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
P: 14JUN2025 172993 4.0N 32.0W 4.0-5.9 CAAAA Central Mid-Atlantic Ridg
O: 20JUN2025 20:11:12 3.0S 139.5E ML=4.1 EMSC PAPUA, INDONESIA
P: 19JUN2025 173020 2.0S 140.0E 4.0-5.5 AAAAA Papua New Guinea
O: 20JUN2025 17:30:58 3.7S 131.5E MB=4.5 EMSC CERAM SEA, INDONESIA
P: 18JUN2025 173027 5.0S 134.0E 4.0-5.6 ABCAA West Irian, PNG
O: 20JUN2025 18:21:43 5.2N 126.8E ML=4.3 EMSC MINDANAO, PHILIPPINES
O: 20JUN2025 21:00:23 6.7N 126.8E ML=4.3 EMSC MINDANAO, PHILIPPINES
P: 20JUN2025 173003 6.0N 126.0E 4.0-5.4 AAAAA Mindanao, Philippines
O: 20JUN2025 07:56:15 6.9S 129.8E ML=4.4 EMSC BANDA SEA
P: 20JUN2025 173029 7.0S 130.0E 4.0-5.6 AAAAA West Irian, PNG
O: 21JUN2025 05:52:59 7.7S 108.4E MB=4.5 EMSC JAVA, INDONESIA
P: 17JUN2025 173023 7.0S 106.0E 4.0-5.4 BACAA So. of Java
P: 18JUN2025 173199 10.0S 107.0E 4.0-5.4 BCBAA So. of Java
O: 20JUN2025 17:48:43 12.7S 45.5E ML=3.5 EMSC MAYOTTE REGION
O: 21JUN2025 01:18:36 13.0S 74.6W ML=4.7 EMSC CENTRAL PERU
P: 16JUN2025 173191 13.0S 77.0W 4.0-5.6 BABAA Central Peru
O: 20JUN2025 10:01:22 14.0N 91.4W MB=4.5 EMSC GUATEMALA
P: 19JUN2025 173038 14.0N 92.0W 3.5-5.1 AAAAA Guatemala
O: 21JUN2025 06:03:36 14.6N 92.5W ML=4.0 EMSC OFFSHORE CHIAPAS, MEXICO
O: 20JUN2025 12:28:37 14.9N 93.8W ML=4.2 EMSC OFFSHORE CHIAPAS, MEXICO
O: 21JUN2025 01:53:30 15.1N 93.2W ML=4.0 EMSC OFFSHORE CHIAPAS, MEXICO
O: 20JUN2025 09:31:29 16.4N 93.8W ML=4.2 EMSC CHIAPAS, MEXICO
P: 19JUN2025 173038 14.0N 92.0W 3.5-5.1 AAAAA Guatemala
P: 20JUN2025 173035 16.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
O: 20JUN2025 14:28:18 16.4S 74.0W ML=4.1 EMSC NEAR COAST OF SOUTHERN PERU
P: 18JUN2025 173198 18.0S 73.0W 4.0-5.8 ABAAA So. Peru/Bolivia
O: 21JUN2025 04:51:00 17.8N 65.4W MD=3.3 EMSC PUERTO RICO REGION
O: 21JUN2025 07:50:31 18.3N 66.3W MD=3.0 EMSC PUERTO RICO
P: 20JUN2025 173042 18.0N 64.0W 3.0-5.2 AABAA Leeward Islands
O: 20JUN2025 16:31:03 18.0S 178.4W MB=4.6 EMSC FIJI REGION
P: 20JUN2025 173201 17.0S 179.0W 4.0-5.6 AAAAA Tonga Islands
O: 21JUN2025 01:26:25 21.2S 168.6E MB=4.6 EMSC LOYALTY ISLANDS
O: 20JUN2025 13:18:35 22.3S 171.5E MB=4.6 EMSC SOUTHEAST OF LOYALTY ISLANDS
P: 17JUN2025 173208 22.0S 170.0E 4.0-5.7 BAAAA Loyalty Islands
O: 21JUN2025 07:23:59 23.9S 179.9W MB=4.3 EMSC SOUTH OF FIJI ISLANDS
P: 14JUN2025 173216 23.0S 177.0W 4.0-5.8 CACAA Tonga Islands
O: 20JUN2025 16:23:22 29.3N 116.2W ML=3.8 EMSC OFFSHORE BAJA CALIFORNIA, MEXI
P: 16JUN2025 173099 30.2N 114.1W 2.0-4.1 BABAA SW U.S.A
O: 20JUN2025 08:21:56 31.0N 103.6W ML=2.0 EMSC WESTERN TEXAS
O: 20JUN2025 21:47:18 31.6N 104.0W ML=2.0 EMSC WESTERN TEXAS
O: 20JUN2025 07:35:16 31.7N 104.4W ML=2.0 EMSC WESTERN TEXAS
O: 20JUN2025 08:56:22 31.7N 104.1W ML=2.3 EMSC WESTERN TEXAS
O: 20JUN2025 17:05:32 31.7N 104.3W ML=2.1 EMSC WESTERN TEXAS
P: 17JUN2025 173100 31.2N 104.1W 2.0-4.1 BAAAA SW U.S.A
O: 20JUN2025 18:09:47 31.3N 138.5E MB=4.4 EMSC IZU ISLANDS, JAPAN REGION
P: 10JUN2025 172823 30.0N 139.0E 3.5-4.9 CAAAA Central/So. Honshu Japan
O: 20JUN2025 15:52:53 31.4N 115.6W ML=3.2 EMSC BAJA CALIFORNIA, MEXICO
O: 20JUN2025 08:03:36 31.5N 115.1W ML=3.1 EMSC BAJA CALIFORNIA, MEXICO
P: 18JUN2025 173102 32.4N 115.8W 2.5-4.6 AAAAA So. California
O: 20JUN2025 22:04:36 33.3N 116.3W ML=2.3 EMSC SOUTHERN CALIFORNIA
P: 19JUN2025 173104 33.0N 115.9W 2.5-4.8 AAAAA So. California
O: 21JUN2025 06:42:00 33.1S 179.6E MW=4.2 EMSC SOUTH OF KERMADEC ISLANDS
O: 20JUN2025 17:54:38 34.5S 179.2E ML=4.0 EMSC SOUTH OF KERMADEC ISLANDS
O: 20JUN2025 12:34:01 33.6S 179.1E ML=3.9 EMSC SOUTH OF KERMADEC ISLANDS
P: 18JUN2025 173226 34.0S 179.0W 4.0-5.8 AAAAA So. Kermadec Islands
O: 21JUN2025 08:00:50 33.7S 70.4W ML=4.2 EMSC REGION METROPOLITANA, CHILE
P: 16JUN2025 173220 33.0S 71.0W 4.0-5.8 BAAAA Central Chile
O: 21JUN2025 04:46:55 34.2N 117.6W ML=2.0 EMSC SOUTHERN CALIFORNIA
P: 19JUN2025 173109 34.2N 117.8W 2.5-5.1 AAAAA So. California
O: 20JUN2025 13:53:40 34.8N 23.3E MB=4.9 EMSC CRETE, GREECE
P: 17JUN2025 173083 34.0N 26.0E 3.0-4.6 BACAA Crete
O: 20JUN2025 17:49:16 35.4N 53.0E MB=5.1 EMSC NORTHERN IRAN
P: 17JUN2025 173092 37.0N 55.0E 3.8-5.2 BBBAA No. Iran
O: 21JUN2025 04:13:06 36.5N 121.1W MD=2.1 EMSC CENTRAL CALIFORNIA
O: 20JUN2025 12:47:28 36.4N 121.0W MD=2.0 EMSC CENTRAL CALIFORNIA
P: 20JUN2025 173076 36.2N 121.8W 2.5-4.6 AAAAA Central California
O: 20JUN2025 16:18:56 36.7N 25.8E ML=4.8 EMSC DODECANESE ISLANDS, GREECE
P: 15JUN2025 173069 37.0N 25.0E 3.0-4.9 BAAAA Aegean Sea
O: 20JUN2025 11:58:41 36.9N 53.5E ML=3.3 EMSC NORTHERN IRAN
P: 17JUN2025 173092 37.0N 55.0E 3.8-5.2 BABAA No. Iran
O: 21JUN2025 02:13:39 36.9N 104.8W ML=2.6 EMSC NEW MEXICO
P: 14JUN2025 173082 36.9N 105.1W 2.0-4.2 CAAAA Colorado area
O: 20JUN2025 07:23:51 36.9N 121.6W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 18JUN2025 173076 36.9N 121.7W 2.5-4.6 AAAAA Central California
O: 20JUN2025 13:54:09 37.6N 117.7W ML=2.3 EMSC NEVADA
P: 18JUN2025 173072 37.4N 118.6W 2.5-4.8 AAAAA California/Nevada area
O: 20JUN2025 20:45:31 38.5N 116.5W ML=2.7 EMSC NEVADA
P: 19JUN2025 173073 38.7N 115.4W 2.5-4.6 AAAAA California/Nevada area
O: 21JUN2025 02:06:46 38.8N 122.8W MD=2.1 EMSC NORTHERN CALIFORNIA
P: 19JUN2025 173079 38.8N 122.7W 2.5-4.6 AAAAA Central California
O: 21JUN2025 00:54:02 39.7N 120.0W ML=2.2 EMSC NEVADA
P: 17JUN2025 173080 39.8N 120.6W 2.5-4.8 BAAAA Central California
O: 20JUN2025 07:49:39 40.4N 125.1W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 21JUN2025 07:20:16 40.4N 125.4W MD=2.9 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 19JUN2025 173148 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
O: 20JUN2025 13:33:17 40.5N 127.3W ML=2.8 EMSC OFF COAST OF NORTHERN CALIFORNIA
O: 20JUN2025 13:28:31 40.6N 127.6W ML=2.9 EMSC OFF COAST OF NORTHERN CALIFORN
P: 18JUN2025 173149 42.1N 126.9W 3.0-4.8 ABAAA Off Coast of Oregon
O: 21JUN2025 00:46:52 42.1N 29.2W ML=4.1 EMSC AZORES ISLANDS REGION
P: 18JUN2025 173144 42.0N 29.0W 4.0-5.7 BAAAA No. Mid-Atlantic Ridge
O: 20JUN2025 16:37:30 42.8N 146.4E ML=4.0 EMSC OFF COAST OF HOKKAIDO, JAPAN
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 AAAAA Hokkaido, Japan
O: 20JUN2025 20:26:31 44.7N 150.3E MB=4.6 EMSC EAST OF KURIL ISLANDS
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 ABAAA Hokkaido, Japan
O: 20JUN2025 11:25:56 46.7S 166.9E ML=3.2 EMSC OFF W. COAST OF S. ISLAND, N.Z
O: 20JUN2025 22:52:24 45.5S 167.1E ML=4.2 EMSC SOUTH ISLAND OF NEW ZEALAND
O: 20JUN2025 15:09:30 46.1S 165.9E ML=3.0 EMSC OFF W. COAST OF S. ISLAND, N.Z.
P: 20JUN2025 173232 46.0S 167.0E 3.0-5.3 AAAAA Southern S. Isl. N.Z.
P: 20JUN2025 173232 47.0S 165.0E 3.0-5.1 AAAAA So. Island, N.Z.
O: 20JUN2025 19:17:30 45.7N 148.8E MB=4.3 EMSC KURIL ISLANDS
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 ACAAA Hokkaido, Japan
O: 20JUN2025 09:21:12 51.4N 178.7W ML=2.0 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 12JUN2025 173164 51.6N 177.6W 3.5-4.9 CAAAA Andreanoff Isls, Aleutians
O: 20JUN2025 18:40:26 57.8S 9.2W MB=4.9 EMSC EAST OF SOUTH SANDWICH ISLANDS
O: 20JUN2025 10:21:30 60.7S 19.8W MB=5.1 EMSC EAST OF SOUTH SANDWICH ISLANDS
P: 19JUN2025 173236 60.0S 26.0W 4.0-6.0 AACAA So. Sandwich Islands
O: 21JUN2025 02:26:54 62.2N 151.0W ML=3.0 EMSC CENTRAL ALASKA
O: 20JUN2025 06:58:49 62.5N 151.2W ML=3.1 EMSC CENTRAL ALASKA
P: 20JUN2025 173181 62.7N 150.6W 3.2-4.9 AAAAA Central Alaska
O: 21JUN2025 07:28:00 64.5N 39.8W MB=4.5 EMSC NORTH ATLANTIC OCEAN
P: 17JUN2025 173170 59.0N 31.0W 4.0-5.4 BCBAA North Mid-Atlantic Ridge
June 20, 2025
Notable earthquakes and events:
A major X1.9 class solar flare occurred today. This is the strongest solar flare recorded by SWPC since an X2.7 on May 14, 2025 (#3410).
An unusual earthquake of M 4.5 in western Afghanistan accompanied the flare. That event
was reported by EMSC to have been felt lightly in Afghanistan at Herat, and Injil.
This epicenter is several km east of Tehran, Iran where extensive bombing has been
occurring in the past week. Saking associated with that bombing may have helped
promote today's activity in Afghanistan. This earthquake near Herat, Afghanistan
is the area within about 200 km of this epicenter since an M 4.5 on January 21, 2024. The last of
larger magnitude was an M 5.0 on October 28, 2023 - an aftershock of an M 6.3 on October 14, 2023.
At the time this summary noted:
"The strongest earthquake in the world today was an M 6.3-6.4 aftershock in western Afghanistn. NEIC reported it was felt with intensity V in Herat, Afghanistan and in Saragt, Khorasan-e Razabi, Itan. It was also felt in Iran at Torbat Jam, and Meshed with intensity IV and lesser intensity at Gunabad and Asgabat.
This is the strongest earthquake in the series which began with events of M 6.3 on October 8 and the
aftershock of M 6.3 on October 10-11. It is likely that it was promoted by
strong tidal stresses with the new moon and solar eclipse of October 14 as defined
in this summary in earlier issues:
...
More than 2000 were killed in the earlier quakes which flattened villages, schools, health clinics and
other facilities. Many of the structures in this area are made of mud brick and cannoth withstand shaking
associated with strong earthquakes.
It is likely that more damage and casualties accompanied today's event.
Initial reports from the region (AP and Reuters) indicate than there was at least one additional death with this earthquake
as well as more than 150 injured people" (October 15, 2023)
O: 20JUN2025 00:41:20 34.8N 62.1E MB=4.5 EMSC WESTERN AFGHANISTAN
P: 18JUN2025 173070 33.0N 60.0E 3.8-5.6 ABBAA Afghanistan
Parameters for this solar flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2550 2337 2350 2354 X1.9 (June 19, 2025) 6.7E-02
Andreanof Is. M 2.1 23:54 UT
The only event thus far directly linked to this flare was an M 2.1 in the
Andreanof Islands, Alaska which occurred within a couple of minutes of
local solar noon at the maximum of the flare.
O: 19JUN2025 23:54:38 51.7N 177.4W ML=2.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 12JUN2025 173164 51.6N 177.6W 3.5-4.9 CAAAA Andreanoff Isls, Aleutians
A series of moderate earthquakes (including M 5.3, 5.0, 5.0 ... ) has been occurring in the central mid-Atlantic. These began near local solar
noon and may be related to tidal and/or geomagnetic stresses. An earthquake of M 5.5 near the antipode in Papua New Guinea
occurred at the height of this swarm.
The last earthquake of M>=5.3 within about 200 km of this series occurred as
an M 5.6 on February 25, 2019. At the time this summary noted:
"The strongest earthquake of the day was an M 5.5-5.6 in the Central Mid-Atlantic Ridge.
It was followed by an M 4.9 aftershock. Neither were felt in this remote area of the Atlantic.
The mainshock occurred within about an hour of local solar noon and may have been
promoted by tidal effects which maximize at this hour. The last earthquake within
about 250 km of this epicenter in the Central Atlantic with M>=5.5 was and
M 5.5 on February 27, 2016. The last of M>5.6 occurred as an M 5.8 on August 2, 2010." (February 25, 2019)
O: 19JUN2025 14:49:30 2.9N 31.4W mb=4.8 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 22:21:46 2.9N 31.5W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 12:58:34 3.0N 31.3W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 13:32:20 3.0N 31.4W mb=4.8 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 13:51:12 3.0N 31.3W Mw=5.3 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 15:14:39 3.0N 31.4W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 17:51:35 3.0N 31.4W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 20JUN2025 01:09:01 3.0N 31.4W mb=4.9 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 18:28:06 3.1N 31.3W mb=4.9 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 23:06:07 3.1N 31.4W mb=4.6 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 14:59:24 0.8N 28.8W MB=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
P: 19JUN2025 172993 1.0N 29.0W 4.0-5.8 AAAAA Central Mid-Atlantic Ridg
The antipodal quake in New Britain was not reported felt.
O: 19JUN2025 16:37:46 6.2S 147.8E MW=5.5 EMSC EASTERN NEW GUINEA REG., P.N.G
P: 19JUN2025 173017 6.0S 148.0E 4.0-5.6 AAAAA New Ireland
NEIC reported an earthquake of M 3.4 off the coast of northern California was felt with intensity up to II-III in the area(s) of northern California in Redding and Healdsburg.
O: 20JUN2025 07:49:39 40.4N 125.1W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 20JUN2025 07:49:39 40.4N 125.1W ML=3.4 ANSS OFFSHORE NORTHERN CALIFORNIA
O: 19JUN2025 09:59:19 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 19JUN2025 173148 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
NEIC reported an earthquake of M 2.6 in Central California was felt with intensity up to II-III in the area(s) of Central California with III in San Francisco and II in Gilroy and San Juan Bautista.
This event occurred within minutes of local solar midnight adding to a growing
number of such events recent days in the area. It follows an X1.9 solar flare
at 23:55 on June 19 and may have been promoted by energy from that flare.
NEIC reported an earthquake of M 2.5 in Northern California was felt with intensity up to II-III in the area(s) of Northern California in Willits.
O: 20JUN2025 07:23:51 36.9N 121.6W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 18JUN2025 173076 36.9N 121.7W 2.5-4.6 AAAAA Central California
NEIC reported an earthquake of M 4.9 in Taiwan was felt with intensity up to II-III in the area(s) of Taiwan in Kaohsiung at Fengshan.
EMSC reported an earthquake of M 2.5 in Ohio was felt with intensity up to IV in the area(s) of Ohio at Madison.
HURRICANE ERICK (05E)
---- ------- ---------- -------- ----- ------ ------- ---------------
HURR ERICK 2025-06-20 20:00 UT 17.8N 100.3W 35 kts Guerrero, Mexico
Hurricane Erick (05E) continued today in the area of southern Guerrero, Mexico with winds up to to 35 kts (category 3-4 Hurricane). It is expected to track to the west and north making landfall near June 19 near Acapulco and Punta Escondida, Guerrero, Mexico. It could help trigger a moderate to large earthquake along coastal Mexico or south of Chiapas, Mexico in the next day or two. A strong earthquake of M 5.8-6.2 hit near the eye of Hurricane Erick today. The antipode at that time is 16S 82E - an aseismic zone where little antipodal activity is expected.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2300 0123 0130 0136 C1.7 (June 19, 2025) 1.4E-03
Washington State M 2.1 01:30 UT
2310 0405 0412 0415 C4.4 (June 19, 2025) 2.0E-03
2320 0639 0651 0654 C5.9 (June 19, 2025) 3.3E-03
2330 0713 0727 0751 C6.0 (June 19, 2025) 1.1E-02
Gulf of California M 3.5 07:15 UT
Oaxaca M 4.0 07:24 UT
Kuril M 4.4 07:28 UT
Izu Is M 4.7 07:37 UT
2340 0823 0827 0829 C2.3 (June 19, 2025) 8.7E-04
2350 0906 0917 0953 C7.9 (June 19, 2025) 1.6E-02
Oaxaca M 4.4 09:54 UT
2370 1031 1037 1039 C1.9 (June 19, 2025) 1.0E-03
Gulf of California M 3.5 10:34 UT
2500 1915 1929 1935 C5.9 (June 19, 2025) 4.7E-03
Kuril Is. M 4.2 19:16 UT
NE Iran M 4.2 19:33 UT
2520 2116 2134 2143 C4.4 (June 19, 2025) 6.3E-03
2550 2337 2350 2354 X1.9 (June 19, 2025) 6.7E-02
Andreanof Is. M 2.1 23:54 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms June 20 unsettled June 21 quiet June 22. Solar M-flare chance: 65% X-class: 15% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 12 8 11 21:00 4 113 136
A strong Gamma Ray Burst was recorded by SWIFT on June 17, 2025 at 21:01:50 UT (#250617B). A preliminary UVOT Magnitude of V>18.72 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 15, 2025 at 22:25:29 UT (#250615A). A preliminary UVOT Magnitude of V>19.5 was assigned to this GRB.
An earthquake of M 4.0 was recorded in southern Peru - also at 22:25 on June 15, 2025.
A strong Gamma Ray Burst was recorded by SWIFT on June 12, 2025 at 01:02:05 UT (#250612A). No preliminary UVOT Magnitude was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 5, 2025 at 18:52:31 UT (#250605A). A preliminary UVOT Magnitude of V>20.07 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 3, 2025 at 01:10:23 UT (#250603A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 30, 2025 at 18:58:42 UT (#250530C). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 20, 2025 at 02:42:17 UT (#250520A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
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.
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); Reykjanes Ridge (RDIS), 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
06 20 08 21 2025 31.0 -103.6 2.0 WESTERN TEXAS M124 SG131 T84 D92 MA120 Z113 R54 NG61
06 20 07 56 2025 -6.9 129.8 4.4 BANDA SEA M43 SG56 T56 D114 MA51 Z50 R131 NG92
06 20 07 49 2025 40.4 -125.1 3.1 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 R60 NG50
06 20 07 35 2025 31.7 -104.4 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 20 07 23 2025 36.9 -121.6 2.5 NORTHERN CALIFORNIA M111 SG128 T75 D103 MA115 Z106 R60 NG54
06 20 06 52 2025 73.5 8.3 3.8 GREENLAND SEA M68 SG159 T126 D139 MA156 Z152 R26 NG19
06 20 06 37 2025 45.4 106.2 4.2 CENTRAL MONGOLIA M24 SG111 T97 D168 MA107 Z106 R75 NG41
06 20 06 12 2025 14.5 -92.5 4.2 OFFSHORE CHIAPAS, MEXICO M142 SG120 T87 D73 MA114 Z108 R60 NG78
06 20 05 59 2025 -6.6 129.8 4.0 BANDA SEA M43 SG57 T56 D115 MA51 Z51 R131 NG92
06 20 01 52 2025 39.4 -123.4 2.5 NORTHERN CALIFORNIA M108 SG129 T75 D106 MA116 Z107 R59 NG51
06 20 01 32 2025 18.2 -68.7 3.1 ISLA SAONA, DOMINICAN REPUBLIC M137 SG131 T109 D74 MA130 Z127 R44 NG75
06 20 01 09 2025 3.0 -31.4 4.9 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 20 01 03 2025 7.7 126.7 4.0 MINDANAO, PHILIPPINES M32 SG71 T64 D129 MA66 Z65 R116 NG78
06 20 00 46 2025 34.8 140.5 4.2 NEAR EAST COAST OF HONSHU, M40 SG98 T69 D150 MA89 Z85 R92 NG51
06 20 00 41 2025 34.8 62.1 4.5 WESTERN AFGHANISTAN M32 SG113 T128 D140 MA118 Z123 R65 NG54
06 20 00 22 2025 31.6 -104.5 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 R54 NG60
06 20 00 18 2025 42.0 15.5 2.4 SOUTHERN ITALY M68 SG139 T156 D120 MA150 Z157 R33 NG50
06 19 23 54 2025 51.7 -177.4 2.1 ANDREANOF ISLANDS, ALEUTIAN IS M71 SG120 T71 D140 MA108 Z100 R71 NG35
06 19 23 23 2025 37.3 -115.7 2.8 NEVADA M113 SG131 T79 D101 MA118 Z110 R57 NG54
06 19 23 06 2025 42.0 15.6 2.0 SOUTHERN ITALY M68 SG139 T156 D120 MA150 Z157 R34 NG50
06 19 23 06 2025 3.1 -31.4 4.6 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R49 NG91
06 19 23 03 2025 41.9 15.5 2.3 SOUTHERN ITALY M68 SG139 T157 D120 MA150 Z157 R34 NG50
06 19 22 21 2025 2.9 -31.5 5.0 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 19 20 44 2025 -56.8 -69.1 3.6 DRAKE PASSAGE M143 SG58 T81 D0 MA63 Z66 R113 NG150
06 19 20 37 2025 -56.9 -67.1 4.7 DRAKE PASSAGE M142 SG58 T81 D0 MA64 Z66 R113 NG150
06 19 20 18 2025 22.0 119.8 4.9 TAIWAN REGION M22 SG86 T77 D144 MA81 Z80 R101 NG64
06 19 19 33 2025 35.4 58.5 4.2 NORTHEASTERN IRAN M35 SG115 T131 D138 MA121 Z125 R63 NG54
06 19 19 16 2025 45.0 150.5 4.2 EAST OF KURIL ISLANDS M49 SG109 T72 D153 MA98 Z93 R82 NG40
06 19 18 28 2025 3.1 -31.3 4.9 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R49 NG91
06 19 18 23 2025 52.4 160.7 4.3 OFF EAST COAST OF KAMCHATKA M57 SG117 T75 D151 MA106 Z100 R74 NG33
06 19 17 51 2025 3.0 -31.4 5.0 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 19 16 54 2025 41.7 -81.0 2.3 OHIO M116 SG149 T105 D98 MA141 Z134 R33 NG51
06 19 16 37 2025 -6.2 147.8 5.5 EASTERN NEW GUINEA REG., P.N.G M58 SG58 T39 D110 MA48 Z44 R133 NG91
06 19 16 22 2025 42.9 146.6 4.1 OFF COAST OF HOKKAIDO, JAPAN M46 SG106 T72 D153 MA96 Z92 R84 NG43
06 19 15 51 2025 38.9 -123.0 2.0 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 R60 NG52
06 19 15 14 2025 3.0 -31.4 5.0 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 19 15 11 2025 52.3 161.1 4.3 OFF EAST COAST OF KAMCHATKA M57 SG117 T75 D151 MA106 Z100 R74 NG33
06 19 14 59 2025 0.8 -28.8 5.0 CENTRAL MID-ATLANTIC RIDGE M121 SG116 T140 D65 MA126 Z131 R52 NG93
06 19 14 49 2025 2.9 -31.4 4.8 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 19 14 05 2025 14.7 -94.3 4.3 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 R61 NG77
06 19 13 51 2025 3.0 -31.3 5.3 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 19 13 32 2025 3.0 -31.4 4.8 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 19 13 07 2025 17.1 147.3 5.1 MARIANA ISLANDS REGION M48 SG81 T53 D132 MA71 Z66 R110 NG68
06 19 13 02 2025 12.1 -88.1 4.2 NEAR COAST OF NICARAGUA M145 SG120 T90 D70 MA115 Z110 R59 NG80
06 19 12 58 2025 3.0 -31.3 5.0 CENTRAL MID-ATLANTIC RIDGE M122 SG118 T139 D66 MA128 Z132 R50 NG91
06 19 12 40 2025 -3.5 128.7 4.5 SERAM, INDONESIA M40 SG60 T58 D118 MA54 Z54 R128 NG89
06 19 12 26 2025 37.8 -122.1 2.0 SAN FRANCISCO BAY AREA, CALIF. M110 SG128 T75 D104 MA115 Z107 R60 NG53
06 19 12 22 2025 28.6 -99.1 2.4 SOUTHERN TEXAS M127 SG130 T87 D89 MA121 Z114 R53 NG63
06 19 11 25 2025 13.5 -90.5 4.1 OFFSHORE GUATEMALA M144 SG120 T88 D72 MA115 Z109 R60 NG79
06 19 11 12 2025 52.7 160.5 4.1 OFF EAST COAST OF KAMCHATKA M57 SG117 T76 D152 MA106 Z100 R73 NG33
06 19 10 34 2025 31.6 -114.5 3.5 GULF OF CALIFORNIA M119 SG126 T76 D96 MA115 Z107 R60 NG59
06 19 09 59 2025 40.3 -124.5 2.0 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 R59 NG50
06 19 09 54 2025 16.0 -96.5 4.4 OAXACA, MEXICO M140 SG120 T84 D76 MA113 Z107 R61 NG76
06 19 09 53 2025 50.2 -129.8 3.1 VANCOUVER ISLAND, CANADA REGIO M97 SG135 T80 D118 MA121 Z112 R55 NG40
06 19 08 45 2025 28.2 129.6 4.1 RYUKYU ISLANDS, JAPAN M31 SG91 T72 D148 MA84 Z82 R97 NG57
06 19 08 16 2025 8.7 126.4 4.1 MINDANAO, PHILIPPINES M32 SG72 T65 D130 MA67 Z66 R115 NG77
06 19 08 13 2025 28.0 56.8 4.3 SOUTHERN IRAN M35 SG109 T133 D131 MA116 Z122 R67 NG61
06 19 07 37 2025 33.7 139.6 4.7 IZU ISLANDS, JAPAN REGION M40 SG97 T69 D150 MA88 Z84 R93 NG52
06 19 07 28 2025 45.7 151.9 4.4 KURIL ISLANDS M50 SG109 T72 D152 MA99 Z94 R81 NG40
06 19 07 24 2025 16.3 -97.5 4.0 OAXACA, MEXICO M139 SG120 T83 D76 MA113 Z106 R61 NG76
06 19 07 19 2025 32.1 -102.2 2.0 WESTERN TEXAS M123 SG132 T86 D93 MA122 Z114 R52 NG60
06 19 07 15 2025 32.0 -114.9 3.5 SONORA, MEXICO M118 SG126 T76 D96 MA115 Z107 R60 NG59
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: 19JUN2025 14:49:30 2.9N 31.4W mb=4.8 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 22:21:46 2.9N 31.5W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 12:58:34 3.0N 31.3W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 13:32:20 3.0N 31.4W mb=4.8 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 13:51:12 3.0N 31.3W Mw=5.3 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 15:14:39 3.0N 31.4W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 17:51:35 3.0N 31.4W mb=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 20JUN2025 01:09:01 3.0N 31.4W mb=4.9 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 18:28:06 3.1N 31.3W mb=4.9 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 23:06:07 3.1N 31.4W mb=4.6 EMSC CENTRAL MID-ATLANTIC RIDGE
O: 19JUN2025 14:59:24 0.8N 28.8W MB=5.0 EMSC CENTRAL MID-ATLANTIC RIDGE
P: 19JUN2025 172993 1.0N 29.0W 4.0-5.8 AAAAA Central Mid-Atlantic Ridg
O: 19JUN2025 12:40:09 3.5S 128.7E MB=4.5 EMSC SERAM, INDONESIA
P: 20JUN2025 173011 5.0S 126.0E 4.0-5.4 ABCAA Ceram area
O: 19JUN2025 16:37:46 6.2S 147.8E MW=5.5 EMSC EASTERN NEW GUINEA REG., P.N.G
P: 19JUN2025 173017 6.0S 148.0E 4.0-5.6 AAAAA New Ireland
O: 20JUN2025 05:59:51 6.6S 129.8E ML=4.0 EMSC BANDA SEA
O: 20JUN2025 07:56:15 6.9S 129.8E ML=4.4 EMSC BANDA SEA
P: 20JUN2025 173029 7.0S 130.0E 4.0-5.6 AAAAA West Irian, PNG
O: 20JUN2025 01:03:19 7.7N 126.7E ML=4.0 EMSC MINDANAO, PHILIPPINES
O: 19JUN2025 08:16:46 8.7N 126.4E ML=4.1 EMSC MINDANAO, PHILIPPINES
P: 16JUN2025 173043 10.0N 127.0E 3.5-5.1 BBAAA Luzon, Philippines
P: 20JUN2025 173003 6.0N 126.0E 4.0-5.4 ABAAA Mindanao, Philippines
O: 19JUN2025 13:02:42 12.1N 88.1W ML=4.2 EMSC NEAR COAST OF NICARAGUA
P: 15JUN2025 173036 13.0N 89.0W 3.5-5.3 BAAAA Coast of Central America
P: 17JUN2025 173050 12.0N 86.0W 3.5-5.2 AABAA Nicaragua
O: 19JUN2025 11:25:10 13.5N 90.5W ML=4.1 EMSC OFFSHORE GUATEMALA
P: 17JUN2025 173038 14.0N 90.0W 3.5-5.3 AAAAA Guatemala
O: 20JUN2025 06:12:46 14.5N 92.5W ML=4.2 EMSC OFFSHORE CHIAPAS, MEXICO
P: 19JUN2025 173038 14.0N 92.0W 3.5-5.1 AAAAA Guatemala
O: 19JUN2025 14:05:00 14.7N 94.3W ML=4.3 EMSC OFF COAST OF CHIAPAS, MEXICO
P: 14JUN2025 173035 16.0N 94.0W 3.5-5.3 BBAAA Chiapas, Mexico
O: 19JUN2025 09:54:56 16.0N 96.5W ML=4.4 EMSC OAXACA, MEXICO
O: 19JUN2025 07:24:33 16.3N 97.5W ML=4.0 EMSC OAXACA, MEXICO
O: 19JUN2025 13:07:49 17.1N 147.3E MW=5.1 EMSC MARIANA ISLANDS REGION
P: 20JUN2025 173051 18.0N 146.0E 4.0-5.4 AAAAA No. Marianas
O: 20JUN2025 01:32:35 18.2N 68.7W ML=3.1 EMSC ISLA SAONA, DOMINICAN REPUBLIC
P: 18JUN2025 173053 18.0N 68.0W 3.4-4.9 AAAAA Puerto Rico
O: 19JUN2025 20:18:37 22.0N 119.8E MB=4.9 EMSC TAIWAN REGION
P: 18JUN2025 173067 23.0N 121.0E 4.0-5.4 AAAAA Taiwan
O: 19JUN2025 08:13:08 28.0N 56.8E MB=4.3 EMSC SOUTHERN IRAN
P: 19JUN2025 173066 28.0N 52.0E 3.5-5.2 AACAA So. Iran/Persian Gulf
O: 19JUN2025 08:45:59 28.2N 129.6E ML=4.1 EMSC RYUKYU ISLANDS, JAPAN
P: 17JUN2025 173086 30.0N 131.0E 3.5-5.1 ABBAA Kyushu, Japan area
O: 19JUN2025 12:22:59 28.6N 99.1W ML=2.4 EMSC SOUTHERN TEXAS
P: 7JUN2025 172806 28.0N 98.0W 3.0-4.7 DAAAA Northern Mexico
O: 20JUN2025 07:35:16 31.7N 104.4W ML=2.0 EMSC WESTERN TEXAS
O: 20JUN2025 08:21:56 31.0N 103.6W ML=2.0 EMSC WESTERN TEXAS
O: 19JUN2025 07:19:38 32.1N 102.2W ML=2.0 EMSC WESTERN TEXAS
O: 20JUN2025 00:22:12 31.6N 104.5W ML=2.0 EMSC WESTERN TEXAS
P: 17JUN2025 173100 31.2N 104.1W 2.0-4.1 AAAAA SW U.S.A
O: 19JUN2025 10:34:21 31.6N 114.5W ML=3.5 EMSC GULF OF CALIFORNIA
O: 19JUN2025 07:15:03 32.0N 114.9W ML=3.5 EMSC SONORA, MEXICO
P: 16JUN2025 173099 30.2N 114.1W 2.0-4.1 BBAAA SW U.S.A
O: 19JUN2025 07:37:03 33.7N 139.6E MB=4.7 EMSC IZU ISLANDS, JAPAN REGION
P: 15JUN2025 173095 34.0N 142.0E 4.0-5.4 BABAA Off East Coast Honshu
O: 20JUN2025 00:41:20 34.8N 62.1E MB=4.5 EMSC WESTERN AFGHANISTAN
P: 18JUN2025 173070 33.0N 60.0E 3.8-5.6 ABBAA Afghanistan
O: 20JUN2025 00:46:30 34.8N 140.5E ML=4.2 EMSC NEAR EAST COAST OF HONSHU,
P: 15JUN2025 173095 34.0N 142.0E 4.0-5.4 BAAAA Off East Coast Honshu
P: 18JUN2025 173095 36.0N 140.0E 4.0-5.4 ABAAA Off East Coast Honshu
O: 19JUN2025 19:33:17 35.4N 58.5E MB=4.2 EMSC NORTHEASTERN IRAN
P: 19JUN2025 173092 37.0N 59.0E 3.8-5.2 AAAAA No. Iran
O: 20JUN2025 07:23:51 36.9N 121.6W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 18JUN2025 173076 36.9N 121.7W 2.5-4.6 AAAAA Central California
O: 19JUN2025 23:23:54 37.3N 115.7W ML=2.8 EMSC NEVADA
P: 15JUN2025 173073 37.4N 114.8W 2.5-4.7 BAAAA California/Nevada area
P: 19JUN2025 173073 38.7N 115.4W 2.5-4.6 ABAAA California/Nevada area
O: 19JUN2025 12:26:03 37.8N 122.1W MD=2.0 EMSC SAN FRANCISCO BAY AREA, CALIF.
P: 19JUN2025 173078 37.9N 122.0W 2.5-4.8 AAAAA Central California
O: 19JUN2025 15:51:12 38.9N 123.0W MD=2.0 EMSC NORTHERN CALIFORNIA
P: 19JUN2025 173079 38.8N 122.7W 2.5-4.6 AAAAA Central California
O: 20JUN2025 01:52:15 39.4N 123.4W MD=2.5 EMSC NORTHERN CALIFORNIA
P: 19JUN2025 173079 39.2N 123.1W 2.5-4.8 AAAAA Central California
O: 20JUN2025 07:49:39 40.4N 125.1W ML=3.1 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 19JUN2025 09:59:19 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 19JUN2025 173148 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
O: 19JUN2025 16:54:22 41.7N 81.0W ML=2.3 EMSC OHIO
P: 20JUN2025 173151 41.0N 81.0W 2.0-4.1 AAAAA Ohio/Lake Erie
O: 20JUN2025 00:18:02 42.0N 15.5E ML=2.4 EMSC SOUTHERN ITALY
O: 19JUN2025 23:03:25 41.9N 15.5E ML=2.3 EMSC SOUTHERN ITALY
O: 19JUN2025 23:06:36 42.0N 15.6E ML=2.0 EMSC SOUTHERN ITALY
P: 14JUN2025 173134 42.0N 15.0E 3.0-5.3 BAAAA Italy
O: 19JUN2025 16:22:38 42.9N 146.6E MB=4.1 EMSC OFF COAST OF HOKKAIDO, JAPAN
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 AAAAA Hokkaido, Japan
O: 19JUN2025 19:16:20 45.0N 150.5E MB=4.2 EMSC EAST OF KURIL ISLANDS
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 ABBAA Hokkaido, Japan
O: 20JUN2025 06:37:54 45.4N 106.2E ML=4.2 EMSC CENTRAL MONGOLIA
P: 13JUN2025 173138 45.0N 102.0E 4.0-5.5 CACAA Mongolia
O: 19JUN2025 07:28:53 45.7N 151.9E MB=4.4 EMSC KURIL ISLANDS
P: 19JUN2025 173157 48.0N 154.0E 3.5-5.5 ACBAA So. Kurils
O: 19JUN2025 09:53:14 50.2N 129.8W ML=3.1 EMSC VANCOUVER ISLAND, CANADA REGIO
P: 16JUN2025 173166 50.6N 130.5W 3.0-4.9 BAAAA British Colombia
O: 19JUN2025 23:54:38 51.7N 177.4W ML=2.1 EMSC ANDREANOF ISLANDS, ALEUTIAN IS
P: 12JUN2025 173164 51.6N 177.6W 3.5-4.9 CAAAA Andreanoff Isls, Aleutians
O: 19JUN2025 15:11:29 52.3N 161.1E MB=4.3 EMSC OFF EAST COAST OF KAMCHATKA
O: 19JUN2025 18:23:15 52.4N 160.7E mb=4.3 EMSC OFF EAST COAST OF KAMCHATKA
O: 19JUN2025 11:12:44 52.7N 160.5E mb=4.1 EMSC OFF EAST COAST OF KAMCHATKA
P: 16JUN2025 173167 52.0N 160.0E 4.0-5.4 BAAAA E. of Kamchatka
P: 17JUN2025 173169 53.0N 159.0E 4.0-5.8 AAAAA Kamchatka
O: 19JUN2025 20:44:21 56.8S 69.1W ML=3.6 EMSC DRAKE PASSAGE
O: 19JUN2025 20:37:57 56.9S 67.1W MB=4.7 EMSC DRAKE PASSAGE
P: 17JUN2025 173237 57.0S 67.0W 3.0-5.8 AAAAA So. So. America
O: 20JUN2025 06:52:49 73.5N 8.3E MB=3.8 EMSC GREENLAND SEA
P: 3JUN2025 172946 74.0N 14.0E 3.0-4.4 DAAAA Norway
June 19, 2025
Notable earthquakes and events:
A strong M 5.8 (EMSC) to M 6.2 (INGV, BGS, INET) earthquake occurred today south
of Chiapas, Mexico. NEIC reported it was felt lightly in southern Mexico.
Aftershocks were also felt lightly in southern Mexico. The last earthquake of M>=5.8 within
about 200 km of this epicenter occurred as an M 6.3 on July 14, 2023. The last of significantly
lareger magnitude in this area was an M 7.4 on June 23, 2020. At the time this
summary noted:
"The strongest earthquake in the world today was an M 6.3 south of Chiapas, Mexico. NEIC reported it was felt with maximum intensity VIII in Chiapas at Tonala; V in Tapachula; IV in Pijijiapan, IV in San Cristobal de las Casas and in Guatemala at Quetzaltenango and Olintepeque among others. Lesser shaking in Chiapas was reported from Tres Picos and Puerto Madero.
Previous strong earthquakes in this area have often occurred within a couple
of days of the new moon, with strong geomagnetic storms and flares, and are often
most likely to occur in mid-summer with the sun directly overhead near the new or full moon. Today's event occurred at the maximum of a geomagnetic storm which saw Mid-latitudes reach
AP 32 within several hours of this earthquake. This is the most distured the
geomagnetic field has been in the past month. A similar geomagnetic storm
last occurred with AP 38 on June 16, 2023. Today's earthquake in Chiapas
appears to have been triggered by the largest solar flare of the day - flare 1600 (SWPC) of class M1.0 - which
occurred simultaneously with this earthquake. For flare data see Flare list in this summary.
The last earthquake of M>=6.3 within abouot 150 km of today's event in Chiapas,
Mexico was an M 8.1 on September 8, 2017. That earthquake was also triggered by
a strong solar flare which was simultaneous with it. At the time this summary noted
in this regard:
"A great earthquake of M 8.0 (EMSC) to 8.4 (UNAM) hit the area south of Oaxaca and Chiapas, Mexico today. It was
felt widely from Guatemala City to Mexico City and as far north as Belize.
This is the first earthquake in the world with M>=8.0 since an M 8.3 in
Central Chile on September 16, 2015 and prior to that an M 8.2 on April 1, 2014 in
the area of northern Chile. On average there is approximately two years between
great earthquakes such as this. The last earthquake of M>=8.0 within about 300
km of today's epicenter occurred on August 6, 1942 and M 8.4 on September 23, 1902 and April 19, 1902. These were M 8.3-8.4 events. This earthquake had been anticipated in previous issues of this report because
of several factors including the X9.3 solar flare yesterday, tidal stresses and
the severe geomagnetic storms. It occurred within about an hour of local solar
midnight, a time when these effects maximize. ...
The geomagnetic field was at severe storm conditions today. The AP level was 38.
High latitude geomagnetic field saw severe storm conditions with AP at 60.
riggering of strong seismicity from the severe geomagnetic storms
today and tomorrow is likely and includes the M 8.0-8.4 quake in eastern Mexico
today. A flare of X1.3 occurred near UT noon today,
This follows two similar quakes yesterday including an X9.3 the first X-class solar flare since an X2.1 on March 11, 2015 and the strongest
flare in at least 11 year, the solar cycle period. Strong seismicity is likely to be promoted 10-15 degrees from the geomagnetic
equator and at high auroral latitudes around September 10-13. This is most likely
in areas near 90 East and West longitudes including Indonesia and Central America
among others. This is a combined effect of weather, geomagnetic and tidal effects
associated with the full moon. The earthquake today in eastern Mexico appears
to confirm this analyses. The planetary K-index reached maximum of 8 today,
around 0400 UT on September 8. This is the first time it has reach 8 since
March 17, 2015, two and a half years ago. The simultaneity of this geomagnetic
storm and the M8+ at the same time in Chiapas, Mexico is powerful coincidental
evidence for a triggering relation as previously noted in this summary on
many occasions." (September 8, 2017)
The last earthquake of stronger magnitude in Chiapas Mexico than today's M 6.3
was an M 7.4 about 250 km northwest of today's epicenter on June 23, 2020.
At the time this summary emphasized the location of events in Chiapas
associated with the occurrence of sub-solar conditions at local solar noon
as follows:
"Because of its location near the Tropic of Capricorn, Mexico is no stranger to
major earthquakes near the summer solstice when the sun is directly overhead.
Such events occurred in 1897 (M 7.0); 1916 (M 7.1); 1928 (M 8.0) and 1982 (M 7.2)
among others. This relation had been noted in the previous issues of this report as:
"On the first day of summer in the northern hemisphere, the sun reaches its zenith at about 23 degree North latitude
due to the tilt of the earth's axis. Vertical tidal triggering is therefore
maximized near 23 North latitude at this time of year. Seismicity can be
seen to increase at this latitude as well as evidenced by today's India earthquake at 23 North
latitude ... (June 22, 2020)
Today's earthquake in Chiapas occurred as the sun was directly overhead at
about 15-16 degrees north latitude, matching the latitude in Chiapas where
today's M 6.3 occurred as emphasized in previous issues of this summary:
"As previously noted in this summary, the sun is currently directly overhead
at local solar noon near the latitudes of 19-21 degrees North. It has been
suggested that this encourages vertical tectonics in seismic active regions
near these latitudes. In recent days this has included events of M 6.6 north
of the Virgin Islands (20 N) and the Virgin Islands (20N) as well as in the Philippines
and Taiwan. A pair of moderate earthquakes of M 4.0 and 4.1 were recorded
in the northern Philippines today in this latitude band." (July 14, 2023)
Today's earthquake in Chiapas, Mexico may also have been promoted by
SFE from the strongest solar flare of the day - a C6.9 (#1980) with the following
parameters from SWPC.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1980 0914 0930 0955 C6.9 (June 18, 2025) 1.4E-02
Chiapas M 6.1 09:49 UT
Argentina M 4.2 09:14 UT
O: 18JUN2025 09:49:28 14.9N 94.1W ML=6.2 BGS OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:49:23 14.9N 94.0W MW=6.2 INET OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 18:44:00 14.6N 94.3W ML=4.0 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:55:51 14.7N 94.1W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:17:51 14.7N 94.2W ML=4.3 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:48:38 14.7N 94.3W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:07:22 14.8N 94.1W mb=4.7 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:49:23 14.9N 94.0W Mw=5.8 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:49:23 14.9N 94.0W Mw=6.2 INET OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 17:48:39 16.8N 95.1W ML=4.0 EMSC OAXACA, MEXICO
P: 20JUN2025 173035 16.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
O: 19JUN2025 08:19:54 16.5N 93.8W ML=4.1 EMSC CHIAPAS, MEXICO
O: 18JUN2025 22:58:31 15.9N 94.6W ML=4.1 EMSC OFFSHORE OAXACA, MEXICO
P: 20JUN2025 173035 16.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
O: 19JUN2025 09:54:56 16.0N 96.5W ML=4.4 EMSC OAXACA, MEXICO
O: 19JUN2025 07:24:33 16.3N 97.5W ML=4.0 EMSC OAXACA, MEXICO
P: 20JUN2025 173052 16.0N 98.0W 3.5-5.4 AAAAA Oaxaca, Mexico
O: 18JUN2025 14:21:44 17.1N 94.7W ML=4.0 EMSC OAXACA, MEXICO
P: 17JUN2025 173035 17.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
An earthquake of M 5.9-6.1 hit the region of Hokkaido, Japan today. NEIC reported it was felt with intensity I in Sapporo, Hokkaido, Japan. No tsunami was observed nor expected.
Today's earthquake in Hokkaido, Japan may also have been promoted by
SFE from one of the strongest solar flares of the day - a C4.1 (#2280) with the following
parameters from SWPC. It occurred at the beginning of this solar flare.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
2280 2306 2313 2317 C4.1 (June 18, 2025) 1.6E-03
Hokkaido M 5.9 23:08 UT
O: 18JUN2025 23:08:04 42.9N 146.6E ML=6.4 RSSC KURIL ISLANDS
O: 18JUN2025 23:08:04 43.0N 146.4E MW=5.9 EMSC OFF COAST OF HOKKAIDO, JAPAN
O: 19JUN2025 02:35:30 43.3N 146.0E MB=4.0 EMSC HOKKAIDO, JAPAN REGION
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 AAAAA Hokkaido, Japan
An earthquake of M 5.4 also occurred today in the area near El Salvador. NEIC reported it was felt with intensity up to V in El Salvador at Ilonpango, San Salvador; IV in Mejicanos, Sandy Bay Islas de la Bahia, Honduras, and San Luis la Herradura, La Paz, El Salvador and III in Antiguo Cuscatlan, Nueva San Salvador, Nuevo Cucatlan, Intipuca, Usulutan, Reforma, Chiapas, Mexco and in Chinandega, Nicaragua.
EMSC reported strong shaking in El Salvador in San Miguel, Nueva Guadalupe, La Libertad, Ayutuxtepeque, Santa Tecla, Managua, Nicaragua.
O: 18JUN2025 11:57:25 13.1N 88.6W MW=5.4 EMSC OFFSHORE EL SALVADOR
P: 15JUN2025 173036 13.0N 89.0W 3.5-5.3 BAAAA Coast of Central America
This epicenter is near the start of Hurricane Erick two days ago and may have
been promoted by energy from that storm as noted in this summary at the time.
"A tropical cyclone may be forming south of San Salvador. This system is currently at 10N 89W with winds up to 28 kts. Neither local nor antipodal seismicity is expected to be affected at this time with this storm." (June 17, 2025)
Hurricane Erick (05E) continued today in the area south of Oaxaca, Mexico with winds up to to 130 kts (category 3-4 Hurricane). It is expected to track to the west and north making landfall near June 19 near Acapulco and Punta Escondida, Guerrero, Mexico. It could help trigger a moderate to large earthquake along coastal Mexico or south of Chiapas, Mexico in the next day or two. A strong earthquake of M 5.8-6.2 hit near the eye of Hurricane Erick today. The antipode at that time is 16S 82E - an aseismic zone where little antipodal activity is expected.
HURRICANE ERICK (05E)
---- ------- ---------- -------- ----- ------ ------- ---------------
HURR ERICK 2025-06-19 00:00 UT 15.0N 95.4W 130 kts South of Oaxaca, Mexico
A series of moderate earthquake occurred in the Snares Island region south of South Island,
New Zealand today. These events of M 4.5-5.3 were lightly felt in South Island, New Zealand.
NEIC reported an earthquake of M 2.8 in Washington State was felt with intensity up to II-III in the area(s) of Washington State with IV in Mount Vernon; and II in Anacortes, Marysville, Snohomish and in British Columbia, Canada at Chilliwack and Victoria.
NEIC reported an earthquake of M 3.0 in the Fox Islands, Alaska was felt with intensity up to II-III in the area(s) of the Fox Islands, Alaska with IV in Unalaska.
An M 4.1 also occurred in the Fox Islands today where it was felt with intensity up to II in Akutan.
NEIC reported an earthquake of M 3.4 in Parkfield, California was felt with intensity up to II-III in the area(s) of Parkfield, California with III in Coalinga, Atascadero, Paso Robles and II in San Miguel, Templeton, Fresno.
NEIC reported an earthquake of M 4.8 in Java, Indonesia was felt with intensity up to II-III in the area(s) of Java, Indonesia in Karawang, Java.
EMSC reported an earthquake of M 4.2 in Ecuador was felt with intensity up to IV in the area(s) of Ecuador in Amaguana, Tutamandahostel.
GeoNet reported earthquakes in Snares Island, New Zealand today were felt with the following parameters:
O: 18JUN2025 22:34:08 47.8S 165.5E MB=5.2 GEONET Felt weakly by 2 and lightly by 0 respondents in Southern South Island and in Snares Island, New Zealand.
O: 18JUN2025 14:51:45 47.7S 165.3E MB=5.2 GEONET Felt weakly by 1 and lightly by 1 and with severe intensity by one respondents in Southern South Island and in Snares Island, New Zealand.
HURRICANE ERICK (05E)
---- ------- ---------- -------- ----- ------ ------- ---------------
HURR ERICK 2025-06-19 20:00 UT 17.0N 99.3W 80 kts Guerrero, Mexico
Hurricane Erick (05E) continued today in the area south of Guerrero, Mexico with winds up to to 80 kts (category 3-4 Hurricane). It is expected to track to the west and north making landfall near June 19 near Acapulco and Punta Escondida, Guerrero, Mexico. It could help trigger a moderate to large earthquake along coastal Mexico or south of Chiapas, Mexico in the next day or two. A strong earthquake of M 5.8-6.2 hit near the eye of Hurricane Erick today. The antipode at that time is 16S 82E - an aseismic zone where little antipodal activity is expected.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1830 0158 0205 0212 C3.7 (June 18, 2025) 3.2E-03
1880 0303 0313 0321 C9.2 (June 18, 2025) 6.4E-03
1910 0504 0512 0523 C4.1 (June 18, 2025) 5.5E-03
Tarapaca M 4.0 05:03 UT
1920 0523 0533 0538 C4.7 (June 18, 2025) 4.9E-03
1930 0538 0614 0620 C5.5 (June 18, 2025) 1.4E-02
1940 0620 0625 0627 C5.5 (June 18, 2025) 3.3E-03
1960 0830 0836 0846 C3.9 (June 18, 2025) 3.8E-03
1980 0914 0930 0955 C6.9 (June 18, 2025) 1.4E-02
Chiapas M 6.1 09:49 UT
Argentina M 4.2 09:14 UT
2010 1109 1131 1140 C4.7 (June 18, 2025) 6.7E-03
El Salvador M 5.4 11:57 UT
2030 1228 1234 1237 C5.2 (June 18, 2025) 2.0E-03
Kyushu M 4.8 12:30 UT
2050 1400 1407 1413 C2.6 (June 18, 2025) 2.1E-03
Oaxaca M 4.0 14:21 UT
New Zealand M 5.1 14:51 UT
2080 1523 1531 1543 C2.1 (June 18, 2025) 2.3E-03
New Zealand M 3.5 15:33 UT
2090 1607 1616 1628 C3.0 (June 18, 2025) 3.0E-03
2120 1803 1807 1811 C1.6 (June 18, 2025) 8.8E-04
2130 1817 1822 1827 C1.9 (June 18, 2025) 1.2E-03
2150 1854 1901 1904 C1.5 (June 18, 2025) 9.1E-04
2230 2037 2046 2049 C2.0 (June 18, 2025) 1.1E-03
Fox Is. M 4.0 20:50 UT
2240 2134 2139 2143 C3.0 (June 18, 2025) 1.2E-03
2270 2248 2251 2253 C1.2 (June 18, 2025) 4.9E-04
Oaxaca M 4.1 22:58 UT
2280 2306 2313 2317 C4.1 (June 18, 2025) 1.6E-03
Hokkaido M 5.9 23:08 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active June 19 minor storms June 20 unsettled June 21. Solar M-flare chance: 75% X-class: 25% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 13 20 12 15:00 5 120 137
A strong Gamma Ray Burst was recorded by SWIFT on June 17, 2025 at 21:01:50 UT (#250617B). A preliminary UVOT Magnitude of V>18.72 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 15, 2025 at 22:25:29 UT (#250615A). A preliminary UVOT Magnitude of V>19.5 was assigned to this GRB.
An earthquake of M 4.0 was recorded in southern Peru - also at 22:25 on June 15, 2025.
A strong Gamma Ray Burst was recorded by SWIFT on June 12, 2025 at 01:02:05 UT (#250612A). No preliminary UVOT Magnitude was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 5, 2025 at 18:52:31 UT (#250605A). A preliminary UVOT Magnitude of V>20.07 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 3, 2025 at 01:10:23 UT (#250603A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 30, 2025 at 18:58:42 UT (#250530C). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 20, 2025 at 02:42:17 UT (#250520A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
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.
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); Reykjanes Ridge (RDIS), 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
06 19 11 12 2025 52.7 160.5 4.1 OFF EAST COAST OF KAMCHATKA M57 SG117 T76 D152 MA106 Z100 R73 NG33
06 19 10 34 2025 31.6 -114.5 3.5 GULF OF CALIFORNIA M119 SG126 T76 D96 MA115 Z107 R60 NG59
06 19 09 59 2025 40.3 -124.5 2.0 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 R59 NG50
06 19 09 54 2025 16.0 -96.5 4.4 OAXACA, MEXICO M140 SG120 T84 D76 MA113 Z107 R61 NG76
06 19 09 53 2025 50.2 -129.8 3.1 VANCOUVER ISLAND, CANADA REGIO M97 SG135 T80 D118 MA121 Z112 R55 NG40
06 19 08 46 2025 28.2 129.5 4.1 RYUKYU ISLANDS, JAPAN M30 SG91 T72 D148 MA84 Z82 R97 NG57
06 19 08 19 2025 16.5 -93.8 4.1 CHIAPAS, MEXICO M140 SG122 T86 D76 MA115 Z109 R59 NG76
06 19 08 16 2025 8.7 126.4 4.1 MINDANAO, PHILIPPINES M32 SG72 T65 D130 MA67 Z66 R115 NG77
06 19 08 13 2025 28.0 56.8 4.3 SOUTHERN IRAN M35 SG109 T133 D131 MA116 Z122 R67 NG61
06 19 07 37 2025 33.7 139.6 4.7 IZU ISLANDS, JAPAN REGION M40 SG97 T69 D150 MA88 Z84 R93 NG52
06 19 07 28 2025 45.7 151.8 4.5 KURIL ISLANDS M50 SG109 T72 D153 MA99 Z94 R81 NG40
06 19 07 24 2025 16.3 -97.5 4.0 OAXACA, MEXICO M139 SG120 T83 D76 MA113 Z106 R61 NG76
06 19 07 19 2025 32.1 -102.2 2.0 WESTERN TEXAS M123 SG132 T86 D93 MA122 Z114 R52 NG60
06 19 07 15 2025 32.0 -114.9 3.5 SONORA, MEXICO M118 SG126 T76 D96 MA115 Z107 R60 NG59
06 19 06 54 2025 38.1 -118.7 2.1 CENTRAL CALIFORNIA M111 SG130 T77 D103 MA117 Z109 R58 NG53
06 19 06 08 2025 -32.5 -68.1 4.6 MENDOZA, ARGENTINA M162 SG82 T91 D24 MA85 Z86 R90 NG126
06 19 05 13 2025 48.4 -122.4 2.5 WASHINGTON M101 SG137 T82 D114 MA123 Z114 R53 NG42
06 19 04 24 2025 -47.8 165.4 3.9 OFF W. COAST OF S. ISLAND, N.Z. M93 SG23 T32 D66 MA9 Z0 R167 NG133
06 19 04 24 2025 31.7 -104.2 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 19 03 48 2025 -2.9 122.3 4.1 SULAWESI, INDONESIA M35 SG61 T64 D119 MA57 Z58 R125 NG88
06 19 03 37 2025 13.0 -81.1 4.8 CARIBBEAN SEA M145 SG123 T96 D70 MA120 Z115 R55 NG80
06 19 02 47 2025 38.2 -121.9 2.2 NORTHERN CALIFORNIA M110 SG129 T75 D104 MA116 Z107 R59 NG52
06 19 02 35 2025 43.3 146.0 4.0 HOKKAIDO, JAPAN REGION M46 SG107 T73 D154 MA97 Z92 R83 NG42
06 19 02 28 2025 -20.8 -175.3 4.3 TONGA M96 SG54 T1 D81 MA40 Z31 R136 NG107
06 19 02 11 2025 19.1 -66.4 3.1 PUERTO RICO REGION M135 SG133 T112 D75 MA132 Z129 R42 NG74
06 19 01 53 2025 40.8 142.4 4.3 NEAR EAST COAST OF HONSHU, M43 SG104 T73 D154 MA95 Z90 R86 NG45
06 19 01 30 2025 31.7 -104.4 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 19 01 23 2025 46.5 -122.3 2.1 WASHINGTON M103 SG135 T81 D112 MA122 Z113 R54 NG44
06 19 01 06 2025 -0.9 -78.1 4.4 ECUADOR M158 SG110 T95 D56 MA109 Z106 R65 NG94
06 19 01 02 2025 30.6 -114.1 4.1 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 R61 NG60
06 19 00 42 2025 38.8 -122.8 2.4 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 R59 NG52
06 19 00 20 2025 24.0 122.4 4.3 TAIWAN REGION M24 SG88 T76 D146 MA82 Z81 R100 NG62
06 18 23 08 2025 43.0 146.4 5.9 OFF COAST OF HOKKAIDO, JAPAN M46 SG106 T72 D154 MA97 Z92 R84 NG42
06 18 23 06 2025 35.9 -120.5 2.4 CENTRAL CALIFORNIA M112 SG127 T75 D102 MA115 Z106 R60 NG55
06 18 22 59 2025 53.9 -166.8 3.1 FOX ISLANDS, ALEUTIAN ISLANDS M76 SG125 T74 D136 MA112 Z104 R66 NG33
06 18 22 58 2025 15.9 -94.6 4.1 OFFSHORE OAXACA, MEXICO M140 SG121 T85 D75 MA114 Z108 R60 NG76
06 18 22 56 2025 35.9 -120.5 3.3 CENTRAL CALIFORNIA M112 SG127 T75 D102 MA115 Z106 R60 NG55
06 18 22 34 2025 -47.7 165.6 4.4 OFF W. COAST OF S. ISLAND, N.Z. M93 SG23 T31 D66 MA9 Z0 R166 NG133
06 18 22 15 2025 39.6 -123.4 2.0 NORTHERN CALIFORNIA M108 SG129 T75 D106 MA116 Z107 R59 NG51
06 18 22 01 2025 19.7 -65.4 3.5 PUERTO RICO REGION M134 SG133 T113 D76 MA133 Z130 R41 NG74
06 18 22 00 2025 31.4 -114.5 3.3 GULF OF CALIFORNIA M119 SG126 T76 D96 MA115 Z106 R60 NG60
06 18 20 55 2025 30.5 -114.2 3.7 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 R61 NG60
06 18 20 50 2025 53.4 -165.3 4.0 FOX ISLANDS, ALEUTIAN ISLANDS M77 SG125 T73 D135 MA112 Z104 R66 NG34
06 18 20 07 2025 19.6 -65.4 3.5 PUERTO RICO REGION M134 SG133 T113 D76 MA133 Z130 R41 NG74
06 18 19 20 2025 -19.3 -174.4 4.6 TONGA M96 SG55 T1 D82 MA41 Z33 R134 NG106
06 18 19 19 2025 30.5 -114.2 3.8 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 R61 NG60
06 18 18 51 2025 79.2 2.9 4.0 GREENLAND SEA M69 SG159 T121 D141 MA153 Z148 R28 NG14
06 18 18 46 2025 30.5 -114.2 3.0 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 R61 NG60
06 18 18 44 2025 14.6 -94.3 4.0 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 R61 NG78
06 18 18 37 2025 18.8 -63.8 3.4 VIRGIN ISLANDS REGION M134 SG133 T114 D75 MA133 Z130 R41 NG75
06 18 17 48 2025 16.8 -95.1 4.0 OAXACA, MEXICO M139 SG121 T85 D76 MA115 Z108 R60 NG75
06 18 17 24 2025 13.6 120.9 4.3 MINDORO, PHILIPPINES M25 SG77 T72 D136 MA73 Z72 R109 NG72
06 18 17 22 2025 54.9 -156.3 3.1 SOUTH OF ALASKA M81 SG129 T76 D132 MA115 Z107 R62 NG33
06 18 17 03 2025 31.7 -104.3 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 18 16 51 2025 31.7 -104.3 3.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 18 15 47 2025 34.4 23.7 3.2 CRETE, GREECE M63 SG129 T159 D118 MA140 Z148 R43 NG57
06 18 15 33 2025 -47.5 165.9 3.5 OFF W. COAST OF S. ISLAND, N.Z. M93 SG23 T31 D66 MA9 Z0 R166 NG133
06 18 15 17 2025 -13.8 -75.8 4.0 CENTRAL PERU M168 SG99 T92 D43 MA99 Z98 R76 NG107
06 18 15 16 2025 -47.7 166.0 3.1 OFF W. COAST OF S. ISLAND, N.Z. M93 SG23 T31 D66 MA9 Z0 R166 NG133
06 18 14 51 2025 -47.5 165.4 5.1 OFF W. COAST OF S. ISLAND, N.Z M93 SG23 T31 D66 MA9 Z0 R166 NG133
06 18 14 21 2025 17.1 -94.7 4.0 OAXACA, MEXICO M139 SG122 T86 D76 MA115 Z109 R59 NG75
06 18 13 47 2025 12.9 123.6 4.4 MASBATE REGION, PHILIPPINES M27 SG76 T69 D135 MA71 Z71 R111 NG73
06 18 13 42 2025 34.8 -116.4 2.2 SOUTHERN CALIFORNIA M115 SG128 T77 D99 MA116 Z108 R59 NG56
06 18 13 34 2025 47.9 -122.7 2.0 PUGET SOUND REGION, WASHINGTON M102 SG136 T81 D113 MA123 Z114 R53 NG43
06 18 12 56 2025 37.0 -112.9 2.3 UTAH M115 SG132 T80 D100 MA120 Z111 R55 NG54
06 18 12 30 2025 32.1 131.9 4.8 KYUSHU, JAPAN M33 SG95 T73 D151 MA88 Z85 R94 NG53
06 18 12 10 2025 -35.0 178.4 3.7 SOUTH OF KERMADEC ISLANDS M96 SG39 T16 D72 MA25 Z16 R151 NG121
06 18 12 08 2025 -21.2 -179.1 5.2 FIJI REGION M93 SG52 T4 D83 MA38 Z29 R138 NG107
06 18 11 57 2025 13.1 -88.6 5.4 OFFSHORE EL SALVADOR M144 SG120 T90 D71 MA115 Z110 R59 NG79
06 18 11 56 2025 32.3 -103.3 3.5 NEW MEXICO M122 SG132 T85 D93 MA122 Z114 R53 NG59
06 18 11 56 2025 32.3 -103.3 3.5 NEW MEXICO M122 SG132 T85 D93 MA122 Z114 R53 NG59
06 18 11 49 2025 41.9 -119.6 2.3 NEVADA M108 SG133 T79 D107 MA120 Z111 R56 NG49
06 18 10 53 2025 31.2 -114.3 3.6 GULF OF CALIFORNIA M119 SG126 T76 D95 MA115 Z106 R60 NG60
06 18 10 48 2025 14.7 -94.3 4.1 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 R61 NG77
06 18 10 17 2025 14.7 -94.2 4.3 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 R61 NG77
06 18 10 07 2025 14.8 -94.1 4.7 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R61 NG77
06 18 10 01 2025 66.1 -149.0 3.2 NORTHERN ALASKA M79 SG140 T88 D136 MA127 Z119 R51 NG23
06 18 09 55 2025 14.7 -94.1 4.1 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R61 NG78
06 18 09 49 2025 14.9 -94.0 6.2 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R60 NG77
06 18 09 49 2025 14.9 -94.0 6.2 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R60 NG77
06 18 09 49 2025 14.9 -94.0 5.8 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R60 NG77
06 18 09 35 2025 28.0 -112.2 3.4 GULF OF CALIFORNIA M123 SG124 T76 D92 MA113 Z105 R61 NG63
06 18 09 14 2025 -28.0 -66.7 4.2 CATAMARCA, ARGENTINA M163 SG86 T94 D28 MA90 Z91 R86 NG121
06 18 08 24 2025 -8.2 107.1 4.8 JAVA, INDONESIA M31 SG59 T76 D115 MA59 Z62 R124 NG94
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: 19JUN2025 01:06:24 0.9S 78.1W MB=4.4 EMSC ECUADOR
P: 16JUN2025 173012 2.0S 78.0W 4.0-5.4 BBAAA Ecuador
O: 19JUN2025 03:48:58 2.9S 122.3E ML=4.1 EMSC SULAWESI, INDONESIA
P: 17JUN2025 173025 2.0S 123.0E 4.0-5.5 AAAAA Sulawesi area
O: 18JUN2025 08:24:49 8.2S 107.1E MB=4.8 EMSC JAVA, INDONESIA
P: 18JUN2025 173199 10.0S 107.0E 4.0-5.4 ABAAA So. of Java
O: 19JUN2025 08:16:46 8.7N 126.4E ML=4.1 EMSC MINDANAO, PHILIPPINES
P: 16JUN2025 173043 10.0N 127.0E 3.5-5.1 ABAAA Luzon, Philippines
O: 18JUN2025 13:47:39 12.9N 123.6E ML=4.4 EMSC MASBATE REGION, PHILIPPINES
P: 19JUN2025 173044 14.0N 122.0E 3.5-5.0 ABBAA Luzon, Philippines
O: 19JUN2025 03:37:03 13.0N 81.1W MW=4.8 EMSC CARIBBEAN SEA
P: 17JUN2025 173050 12.0N 86.0W 3.5-5.2 AACAA Nicaragua
O: 18JUN2025 11:57:25 13.1N 88.6W MW=5.4 EMSC OFFSHORE EL SALVADOR
P: 15JUN2025 173036 13.0N 89.0W 3.5-5.3 BAAAA Coast of Central America
O: 18JUN2025 17:24:55 13.6N 120.9E MB=4.3 EMSC MINDORO, PHILIPPINES
P: 19JUN2025 173044 14.0N 122.0E 3.5-5.0 AAAAA Luzon, Philippines
O: 18JUN2025 15:17:38 13.8S 75.8W ML=4.0 EMSC CENTRAL PERU
P: 16JUN2025 173191 13.0S 77.0W 4.0-5.6 AAAAA Central Peru
O: 18JUN2025 09:49:23 14.9N 94.0W MW=6.2 INET OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 18:44:00 14.6N 94.3W ML=4.0 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:55:51 14.7N 94.1W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:17:51 14.7N 94.2W ML=4.3 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:48:38 14.7N 94.3W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:07:22 14.8N 94.1W mb=4.7 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:49:23 14.9N 94.0W Mw=5.8 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:49:23 14.9N 94.0W Mw=6.2 INET OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 17:48:39 16.8N 95.1W ML=4.0 EMSC OAXACA, MEXICO
P: 20JUN2025 173035 16.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
O: 19JUN2025 08:19:54 16.5N 93.8W ML=4.1 EMSC CHIAPAS, MEXICO
O: 18JUN2025 22:58:31 15.9N 94.6W ML=4.1 EMSC OFFSHORE OAXACA, MEXICO
P: 20JUN2025 173035 16.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
O: 19JUN2025 09:54:56 16.0N 96.5W ML=4.4 EMSC OAXACA, MEXICO
O: 19JUN2025 07:24:33 16.3N 97.5W ML=4.0 EMSC OAXACA, MEXICO
P: 20JUN2025 173052 16.0N 98.0W 3.5-5.4 AAAAA Oaxaca, Mexico
O: 18JUN2025 14:21:44 17.1N 94.7W ML=4.0 EMSC OAXACA, MEXICO
P: 17JUN2025 173035 17.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
O: 18JUN2025 18:37:50 18.8N 63.8W MD=3.4 EMSC VIRGIN ISLANDS REGION
P: 20JUN2025 173042 18.0N 64.0W 3.0-5.2 AAAAA Leeward Islands
O: 18JUN2025 19:20:37 19.3S 174.4W MB=4.6 EMSC TONGA
P: 16JUN2025 173201 19.0S 175.0W 4.0-5.6 BAAAA Tonga Islands
O: 18JUN2025 20:07:48 19.6N 65.4W MD=3.5 EMSC PUERTO RICO REGION
O: 18JUN2025 22:01:37 19.7N 65.4W MD=3.5 EMSC PUERTO RICO REGION
O: 19JUN2025 02:11:36 19.1N 66.4W MD=3.1 EMSC PUERTO RICO REGION
P: 16JUN2025 173053 19.0N 66.0W 3.4-4.9 AAAAA Puerto Rico
O: 19JUN2025 02:28:28 20.8S 175.3W MB=4.3 EMSC TONGA
P: 19JUN2025 173216 21.0S 177.0W 4.0-5.7 AABAA Tonga Islands
O: 18JUN2025 12:08:04 21.2S 179.1W MB=5.2 EMSC FIJI REGION
P: 19JUN2025 173216 21.0S 177.0W 4.0-5.7 AABAA Tonga Islands
O: 19JUN2025 00:20:27 24.0N 122.4E MB=4.3 EMSC TAIWAN REGION
P: 18JUN2025 173067 23.0N 121.0E 4.0-5.4 AAAAA Taiwan
O: 19JUN2025 08:13:08 28.0N 56.8E MB=4.3 EMSC SOUTHERN IRAN
P: 15JUN2025 173066 29.0N 53.0E 3.5-4.9 BABAA So. Iran/Persian Gulf
O: 18JUN2025 09:35:44 28.0N 112.2W ML=3.4 EMSC GULF OF CALIFORNIA
P: 11JUN2025 173058 28.0N 112.0W 3.5-4.9 CAAAA Gulf of California
O: 18JUN2025 09:14:08 28.0S 66.7W MB=4.2 EMSC CATAMARCA, ARGENTINA
P: 20JUN2025 173205 28.0S 68.0W 4.0-5.7 AAAAA Argentina
O: 19JUN2025 08:46:30 28.2N 129.5E ML=4.1 EMSC RYUKYU ISLANDS, JAPAN
P: 17JUN2025 173086 30.0N 131.0E 3.5-5.1 ABBAA Kyushu, Japan area
O: 18JUN2025 18:46:17 30.5N 114.2W ML=3.0 EMSC GULF OF CALIFORNIA
O: 19JUN2025 07:15:03 32.0N 114.9W ML=3.5 EMSC SONORA, MEXICO
O: 18JUN2025 19:19:55 30.5N 114.2W ML=3.8 EMSC GULF OF CALIFORNIA
O: 18JUN2025 20:55:34 30.5N 114.2W ML=3.7 EMSC GULF OF CALIFORNIA
O: 19JUN2025 01:02:16 30.6N 114.1W ML=4.1 EMSC GULF OF CALIFORNIA
O: 18JUN2025 10:53:48 31.2N 114.3W ML=3.6 EMSC GULF OF CALIFORNIA
O: 18JUN2025 22:00:51 31.4N 114.5W ML=3.3 EMSC GULF OF CALIFORNIA
O: 19JUN2025 10:34:21 31.6N 114.5W ML=3.5 EMSC GULF OF CALIFORNIA
P: 16JUN2025 173099 30.2N 114.1W 2.0-4.1 AAAAA SW U.S.A
O: 18JUN2025 12:30:10 32.1N 131.9E MB=4.8 EMSC KYUSHU, JAPAN
P: 20JUN2025 173086 32.0N 132.0E 3.5-4.9 AAAAA Kyushu, Japan area
O: 18JUN2025 11:56:58 32.3N 103.3W ML=3.5 EMSC NEW MEXICO
O: 18JUN2025 16:51:58 31.7N 104.3W ML=3.1 EMSC WESTERN TEXAS
O: 18JUN2025 17:03:29 31.7N 104.3W ML=2.5 EMSC WESTERN TEXAS
O: 19JUN2025 01:30:29 31.7N 104.4W ML=2.3 EMSC WESTERN TEXAS
O: 19JUN2025 04:24:32 31.7N 104.2W ML=2.5 EMSC WESTERN TEXAS
O: 19JUN2025 07:19:38 32.1N 102.2W ML=2.0 EMSC WESTERN TEXAS
O: 18JUN2025 11:56:58 32.3N 103.3W ML=3.5 EMSC NEW MEXICO
P: 17JUN2025 173100 31.2N 104.1W 2.0-4.1 AAAAA SW U.S.A
O: 19JUN2025 06:08:23 32.5S 68.1W MB=4.6 EMSC MENDOZA, ARGENTINA
P: 16JUN2025 173220 33.0S 71.0W 4.0-5.8 BABAA Central Chile
O: 19JUN2025 07:37:03 33.7N 139.6E MB=4.7 EMSC IZU ISLANDS, JAPAN REGION
P: 15JUN2025 173095 34.0N 142.0E 4.0-5.4 AAAAA Off East Coast Honshu
O: 18JUN2025 15:47:41 34.4N 23.7E ML=3.2 EMSC CRETE, GREECE
P: 17JUN2025 173083 34.0N 26.0E 3.0-4.6 AABAA Crete
O: 18JUN2025 13:42:36 34.8N 116.4W ML=2.2 EMSC SOUTHERN CALIFORNIA
P: 15JUN2025 173110 34.4N 116.5W 2.5-4.6 BAAAA So. California
O: 18JUN2025 12:10:20 35.0S 178.4E ML=3.7 EMSC SOUTH OF KERMADEC ISLANDS
P: 17JUN2025 173224 38.0S 179.0E 3.0-4.4 ACAAA North Island, N.Z.
O: 18JUN2025 22:56:24 35.9N 120.5W ML=3.3 EMSC CENTRAL CALIFORNIA
O: 18JUN2025 23:06:16 35.9N 120.5W MD=2.4 EMSC CENTRAL CALIFORNIA
P: 16JUN2025 173075 36.1N 120.1W 2.5-4.5 AAAAA Central California
O: 18JUN2025 12:56:25 37.0N 112.9W ML=2.3 EMSC UTAH
O: 19JUN2025 06:54:00 38.1N 118.7W MD=2.1 EMSC CENTRAL CALIFORNIA
P: 17JUN2025 173074 38.2N 118.8W 2.5-4.6 AAAAA California/Nevada area
O: 19JUN2025 02:47:45 38.2N 121.9W MD=2.2 EMSC NORTHERN CALIFORNIA
P: 19JUN2025 173078 37.9N 122.0W 2.5-4.8 AAAAA Central California
O: 19JUN2025 00:42:24 38.8N 122.8W MD=2.4 EMSC NORTHERN CALIFORNIA
P: 19JUN2025 173079 38.8N 122.7W 2.5-4.6 AAAAA Central California
O: 18JUN2025 22:15:17 39.6N 123.4W MD=2.0 EMSC NORTHERN CALIFORNIA
P: 19JUN2025 173079 39.2N 123.1W 2.5-4.8 AAAAA Central California
O: 19JUN2025 09:59:19 40.3N 124.5W MD=2.0 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 19JUN2025 173148 40.6N 124.9W 2.5-4.6 AAAAA Off Coast of No. Calif
O: 19JUN2025 01:53:37 40.8N 142.4E MB=4.3 EMSC NEAR EAST COAST OF HONSHU,
P: 19JUN2025 173132 40.0N 143.0E 3.5-5.5 AAAAA Hokkaido, Japan
O: 18JUN2025 11:49:09 41.9N 119.6W MD=2.3 EMSC NEVADA
P: 12JUN2025 173152 42.2N 120.3W 2.0-4.1 CAAAA Oregon state, U.S.
O: 18JUN2025 23:08:04 43.0N 146.4E MW=5.9 EMSC OFF COAST OF HOKKAIDO, JAPAN
O: 19JUN2025 02:35:30 43.3N 146.0E MB=4.0 EMSC HOKKAIDO, JAPAN REGION
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 AAAAA Hokkaido, Japan
O: 19JUN2025 07:28:52 45.7N 151.8E MB=4.5 EMSC KURIL ISLANDS
P: 19JUN2025 173157 48.0N 154.0E 3.5-5.5 ACBAA So. Kurils
O: 19JUN2025 01:23:52 46.5N 122.3W ML=2.1 EMSC WASHINGTON
P: 20JUN2025 173159 46.9N 122.0W 2.0-4.1 AAAAA Washington state, U.S.
O: 18JUN2025 14:51:55 47.5S 165.4E MB=5.1 EMSC OFF W. COAST OF S. ISLAND, N.Z
O: 18JUN2025 15:33:00 47.5S 165.9E ML=3.5 EMSC OFF W. COAST OF S. ISLAND, N.Z.
O: 18JUN2025 15:16:25 47.7S 166.0E ML=3.1 EMSC OFF W. COAST OF S. ISLAND, N.Z.
O: 18JUN2025 22:34:08 47.7S 165.6E mb=4.4 EMSC OFF W. COAST OF S. ISLAND, N.Z.
O: 19JUN2025 04:24:47 47.8S 165.4E ML=3.9 EMSC OFF W. COAST OF S. ISLAND, N.Z.
P: 20JUN2025 173232 47.0S 165.0E 3.0-5.1 AAAAA So. Island, N.Z.
O: 18JUN2025 13:34:25 47.9N 122.7W ML=2.0 EMSC PUGET SOUND REGION, WASHINGTON
O: 19JUN2025 05:13:18 48.4N 122.4W ML=2.5 EMSC WASHINGTON
P: 19JUN2025 173159 48.4N 123.2W 2.0-4.3 AAAAA Washington state, U.S.
O: 19JUN2025 09:53:14 50.2N 129.8W ML=3.1 EMSC VANCOUVER ISLAND, CANADA REGIO
P: 16JUN2025 173166 50.6N 130.5W 3.0-4.9 BAAAA British Colombia
O: 19JUN2025 11:12:44 52.7N 160.5E MB=4.1 EMSC OFF EAST COAST OF KAMCHATKA
P: 16JUN2025 173167 52.0N 160.0E 4.0-5.4 BAAAA E. of Kamchatka
P: 17JUN2025 173167 54.0N 160.0E 4.0-5.5 ABAAA E. of Kamchatka
P: 17JUN2025 173169 53.0N 159.0E 4.0-5.8 AAAAA Kamchatka
O: 18JUN2025 22:59:52 53.9N 166.8W ML=3.1 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
O: 18JUN2025 20:50:17 53.4N 165.3W ML=4.0 EMSC FOX ISLANDS, ALEUTIAN ISLANDS
P: 15JUN2025 173168 53.5N 165.8W 3.5-4.9 BAAAA Fox Islands, Aleutians
O: 18JUN2025 17:22:42 54.9N 156.3W ML=3.1 EMSC SOUTH OF ALASKA
P: 13JUN2025 173162 54.7N 156.9W 3.5-5.1 BAAAA Alaska Peninsula
O: 18JUN2025 10:01:37 66.1N 149.0W ML=3.2 EMSC NORTHERN ALASKA
P: 20JUN2025 173182 63.0N 148.6W 3.2-5.0 ACAAA Central Alaska
O: 18JUN2025 18:51:09 79.2N 2.9E MB=4.0 EMSC GREENLAND SEA
P: 8JUN2025 172942 79.0N 7.0E 4.0-5.4 CAAAA Arctic Ocean Region
June 18, 2025
Notable earthquakes and events:
A major X1.2 solar flare occurred late on UT June 17, 2025. This is the strongest
solar flare since an X1.1 on May 25, 2025 (SWPC #5450). It occurred near 22:00 UT
- a time when areas off the coast of western North America and Alaska are at local
noon and those near 40 East longitude are near local solar midnight. These
areas could see enhanced seismicity in the next several days. Other areas
of the earth are also expected to experience seismic enhancement in the next
day - especially in areas near the IDL (180E and W longitude where a smaller M-class
flar followed near local noon) and where
seismic enhancement by tropical storms (such as Mexico) is currently in effect
(see below). Data for these two flares from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1770 2138 2149 2154 X1.2 (June 17, 2025) 5.1E-02
1800 2344 2355 0015 M1.5 (June 17, 2025) 1.9E-02
A strong M 5.8 (EMSC) to M 6.2 (INGV, BGS, INET) earthquake occurred today south
of Chiapas, Mexico. NEIC reported it was felt lightly in southern Mexico.
Aftershocks were also felt lightly in southern Mexico. The last earthquake of M>=5.8 within
about 200 km of this epicenter occurred as an M 6.3 on July 14, 2023. The last of significantly
lareger magnitude in this area was an M 7.4 on June 23, 2020. At the time this
summary noted:
"The strongest earthquake in the world today was an M 6.3 south of Chiapas, Mexico. NEIC reported it was felt with maximum intensity VIII in Chiapas at Tonala; V in Tapachula; IV in Pijijiapan, IV in San Cristobal de las Casas and in Guatemala at Quetzaltenango and Olintepeque among others. Lesser shaking in Chiapas was reported from Tres Picos and Puerto Madero.
Previous strong earthquakes in this area have often occurred within a couple
of days of the new moon, with strong geomagnetic storms and flares, and are often
most likely to occur in mid-summer with the sun directly overhead near the new or full moon. Today's event occurred at the maximum of a geomagnetic storm which saw Mid-latitudes reach
AP 32 within several hours of this earthquake. This is the most distured the
geomagnetic field has been in the past month. A similar geomagnetic storm
last occurred with AP 38 on June 16, 2023. Today's earthquake in Chiapas
appears to have been triggered by the largest solar flare of the day - flare 1600 (SWPC) of class M1.0 - which
occurred simultaneously with this earthquake. For flare data see Flare list in this summary.
The last earthquake of M>=6.3 within abouot 150 km of today's event in Chiapas,
Mexico was an M 8.1 on September 8, 2017. That earthquake was also triggered by
a strong solar flare which was simultaneous with it. At the time this summary noted
in this regard:
"A great earthquake of M 8.0 (EMSC) to 8.4 (UNAM) hit the area south of Oaxaca and Chiapas, Mexico today. It was
felt widely from Guatemala City to Mexico City and as far north as Belize.
This is the first earthquake in the world with M>=8.0 since an M 8.3 in
Central Chile on September 16, 2015 and prior to that an M 8.2 on April 1, 2014 in
the area of northern Chile. On average there is approximately two years between
great earthquakes such as this. The last earthquake of M>=8.0 within about 300
km of today's epicenter occurred on August 6, 1942 and M 8.4 on September 23, 1902 and April 19, 1902. These were M 8.3-8.4 events. This earthquake had been anticipated in previous issues of this report because
of several factors including the X9.3 solar flare yesterday, tidal stresses and
the severe geomagnetic storms. It occurred within about an hour of local solar
midnight, a time when these effects maximize. ...
The geomagnetic field was at severe storm conditions today. The AP level was 38.
High latitude geomagnetic field saw severe storm conditions with AP at 60.
riggering of strong seismicity from the severe geomagnetic storms
today and tomorrow is likely and includes the M 8.0-8.4 quake in eastern Mexico
today. A flare of X1.3 occurred near UT noon today,
This follows two similar quakes yesterday including an X9.3 the first X-class solar flare since an X2.1 on March 11, 2015 and the strongest
flare in at least 11 year, the solar cycle period. Strong seismicity is likely to be promoted 10-15 degrees from the geomagnetic
equator and at high auroral latitudes around September 10-13. This is most likely
in areas near 90 East and West longitudes including Indonesia and Central America
among others. This is a combined effect of weather, geomagnetic and tidal effects
associated with the full moon. The earthquake today in eastern Mexico appears
to confirm this analyses. The planetary K-index reached maximum of 8 today,
around 0400 UT on September 8. This is the first time it has reach 8 since
March 17, 2015, two and a half years ago. The simultaneity of this geomagnetic
storm and the M8+ at the same time in Chiapas, Mexico is powerful coincidental
evidence for a triggering relation as previously noted in this summary on
many occasions." (September 8, 2017)
The last earthquake of stronger magnitude in Chiapas Mexico than today's M 6.3
was an M 7.4 about 250 km northwest of today's epicenter on June 23, 2020.
At the time this summary emphasized the location of events in Chiapas
associated with the occurrence of sub-solar conditions at local solar noon
as follows:
"Because of its location near the Tropic of Capricorn, Mexico is no stranger to
major earthquakes near the summer solstice when the sun is directly overhead.
Such events occurred in 1897 (M 7.0); 1916 (M 7.1); 1928 (M 8.0) and 1982 (M 7.2)
among others. This relation had been noted in the previous issues of this report as:
"On the first day of summer in the northern hemisphere, the sun reaches its zenith at about 23 degree North latitude
due to the tilt of the earth's axis. Vertical tidal triggering is therefore
maximized near 23 North latitude at this time of year. Seismicity can be
seen to increase at this latitude as well as evidenced by today's India earthquake at 23 North
latitude ... (June 22, 2020)
Today's earthquake in Chiapas occurred as the sun was directly overhead at
about 15-16 degrees north latitude, matching the latitude in Chiapas where
today's M 6.3 occurred as emphasized in previous issues of this summary:
"As previously noted in this summary, the sun is currently directly overhead
at local solar noon near the latitudes of 19-21 degrees North. It has been
suggested that this encourages vertical tectonics in seismic active regions
near these latitudes. In recent days this has included events of M 6.6 north
of the Virgin Islands (20 N) and the Virgin Islands (20N) as well as in the Philippines
and Taiwan. A pair of moderate earthquakes of M 4.0 and 4.1 were recorded
in the northern Philippines today in this latitude band." (July 14, 2023)
Today's earthquake in Chiapas, Mexico may also have been promoted by
SFE from the strongest solar flare of the day - a C6.9 (#1980) with the following
parameters from SWPC.
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1980 0914 0930 0955 C6.9 (June 18, 2025) 1.4E-02
Chiapas M 6.1 09:49 UT
Argentina M 4.2 09:14 UT
O: 18JUN2025 09:49:23 14.9N 94.0W MW=6.2 BGS OFF COAST OF CHIAPAS, MEXICO
O: 17JUN2025 07:27:05 14.2N 93.4W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 17JUN2025 20:23:00 14.5N 92.6W ML=4.2 EMSC OFFSHORE CHIAPAS, MEXICO
O: 18JUN2025 09:55:51 14.7N 94.1W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:17:51 14.7N 94.2W ML=4.3 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:48:38 14.7N 94.3W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:07:22 14.8N 94.1W mb=4.7 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:49:23 14.9N 94.0W Mw=5.8 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 17JUN2025 15:01:13 14.4N 93.9W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
P: 14JUN2025 173035 16.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
P: 20JUN2025 173035 16.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
P: 17JUN2025 173035 17.0N 94.0W 3.5-5.3 ABAAA Chiapas, Mexico
An eruption of Mount Lewotobi, Laki-laki occurred toda at 17:35 Local time.
This eruption blasted ash more than 11,000 feet into the sky above the volcano.
A tsunami was considered possible and was being investigated by JMA and BMG.
No fatalities have been reported in the current eruption.
Lewotobi is located near Flores at 8.5S 122.8E in Indonesia and last
erupted in November, 2024 killing at least 10 people.
Tropical Storm Erick (05E) continued today in the area south of Chiapas, Mexico with winds up to to 70 kts. It is expected to track to the west and north making landfall near June 19 near Acapulco and Punta Escondida, Guerrero, Mexico. It could help trigger a moderate to large earthquake along coastal Mexico or south of Chiapas, Mexico in the next day or two. The antipode at that time is 16S 82E - an aseismic zone where little antipodal activity is expected.
TROPICAL STORM ERICK (05E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS ERICK 2025-06-18 00:00 UT 14.0N 94.4W 070 kts South of Chiapas, Mexico
The strongest earthquake in the world today was an M 5.3 in Mindanao, Philippines. NEIC reported it was felt with intensity III in Mawab.
EMSC reported it was felt lightly in Mindanao, Philippines at Bincongan, Butuan and Libertad.
The strongest earthquake in the U.S. or Canada today was an M 4.4 in the Rat Islands, Aleutians. It was not reported felt in this remote area.
NEIC reported an earthquake of M 3.8 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska in Denali National Park and in Anchorage.
NEIC reported an earthquake of M 2.8 in Greater Los Angeles, California was felt with intensity up to II-III in the area(s) of Greater Los Angeles, California with III in Riverside, Corona and II in Lake Elsinore, Murrieta, Sun City, Huntington Beach, Silverado, Travuco Canyon, Mission Viejo, Ladera Ranch, Corona and Yorba Linda.
NEIC reported an earthquake of M 4.7 in southern Mindanao, Philippines was felt with intensity up to II-III in the area(s) of southern Mindanao, Philippines in Buayan.
NEIC reported an earthquake of M 3.4 in Southern Alaska was felt with intensity up to II-III in the area(s) of Southern Alaska with III in Chugiak and II in Anchorage, Eagle River and Palmer.
NEIC reported an earthquake of M 3.8 in Guam was felt with intensity up to II-III in the area(s) of Guam at Hagatna and Santa Rita.
EMSC reported an earthquake of M 4.3 in Tajikistan was felt with intensity up to IV in the area(s) of Tajikistan in Taraz, Kazakhstan.
TROPICAL STORM ERICK (05E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS ERICK 2025-06-18 00:00 UT 14.0N 94.4W 090 kts South of Chiapas, Mexico
Tropical Storm Erick (05E) continued today in the area south of Chiapas, Mexico with winds up to to 90 kts. It is expected to track to the west and north making landfall near June 19 near Acapulco and Punta Escondida, Guerrero, Mexico. It could help trigger a moderate to large earthquake along coastal Mexico or south of Chiapas, Mexico in the next day or two. The antipode at that time is 16S 82E - an aseismic zone where little antipodal activity is expected.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1500 0049 0053 0056 C4.1 (June 17, 2025) 2.2E-03
1510 0115 0126 0133 C6.8 (June 17, 2025) 6.6E-03
1600 0614 0621 0627 C9.9 (June 17, 2025) 5.8E-03
Bonin Is. M 4.3 06:21 UT
Molucca M 5.1 06:25 UT
1690 0806 0813 0816 C5.5 (June 17, 2025) 3.4E-03
Southern Mid-Atlantic M 5.0 08:12 UT
Mindano M 5.3 08:36 UT
1750 2034 2038 2042 C2.3 (June 17, 2025) 1.2E-03
1760 2048 2059 2111 C3.4 (June 17, 2025) 3.9E-03
1770 2138 2149 2154 X1.2 (June 17, 2025) 5.1E-02
1800 2344 2355 0015 M1.5 (June 17, 2025) 1.9E-02
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active June 18-19 minor storms June 20. Solar M-flare chance: 75% X-class: 25% proton storm: 10%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 9 14 9 14:00 4 97 139
A strong Gamma Ray Burst was recorded by SWIFT on June 17, 2025 at 21:01:50 UT (#250617B). A preliminary UVOT Magnitude of V>18.72 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 15, 2025 at 22:25:29 UT (#250615A). A preliminary UVOT Magnitude of V>19.5 was assigned to this GRB.
An earthquake of M 4.0 was recorded in southern Peru - also at 22:25 on June 15, 2025.
A strong Gamma Ray Burst was recorded by SWIFT on June 12, 2025 at 01:02:05 UT (#250612A). No preliminary UVOT Magnitude was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 5, 2025 at 18:52:31 UT (#250605A). A preliminary UVOT Magnitude of V>20.07 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 3, 2025 at 01:10:23 UT (#250603A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 30, 2025 at 18:58:42 UT (#250530C). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 20, 2025 at 02:42:17 UT (#250520A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
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.
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); Reykjanes Ridge (RDIS), 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
06 18 11 49 2025 41.9 -119.6 2.3 NEVADA M108 SG133 T79 D107 MA120 Z111 R56 NG49
06 18 10 53 2025 31.2 -114.3 3.6 GULF OF CALIFORNIA M119 SG126 T76 D95 MA115 Z106 R60 NG60
06 18 10 48 2025 14.7 -94.3 4.1 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 R61 NG77
06 18 10 17 2025 14.7 -94.2 4.3 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 R61 NG77
06 18 10 07 2025 14.8 -94.1 4.7 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R61 NG77
06 18 10 01 2025 66.1 -149.0 3.2 NORTHERN ALASKA M79 SG140 T88 D136 MA127 Z119 R51 NG23
06 18 09 55 2025 14.7 -94.1 4.1 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R61 NG78
06 18 09 49 2025 14.9 -94.0 6.2 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R60 NG77
06 18 09 49 2025 14.9 -94.0 5.8 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA114 Z108 R60 NG77
06 18 09 35 2025 28.0 -112.2 3.4 GULF OF CALIFORNIA M123 SG124 T76 D92 MA113 Z105 R61 NG63
06 18 09 14 2025 -28.0 -66.7 4.2 CATAMARCA, ARGENTINA M163 SG86 T94 D28 MA90 Z91 R86 NG121
06 18 09 04 2025 38.2 -117.9 2.0 NEVADA M112 SG130 T78 D103 MA118 Z109 R57 NG53
06 18 08 24 2025 -8.2 107.1 4.8 JAVA, INDONESIA M31 SG59 T76 D115 MA59 Z62 R124 NG94
06 18 05 18 2025 63.1 -149.6 3.8 CENTRAL ALASKA M80 SG138 T85 D134 MA124 Z116 R53 NG25
06 18 05 02 2025 -21.1 -69.0 4.0 TARAPACA, CHILE M165 SG93 T95 D35 MA96 Z95 R80 NG114
06 18 04 18 2025 3.6 126.8 4.6 KEPULAUAN TALAUD, INDONESIA M35 SG67 T62 D125 MA62 Z61 R120 NG82
06 18 03 58 2025 31.5 -104.2 3.0 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 R54 NG60
06 18 03 48 2025 38.8 -122.8 2.4 NORTHERN CALIFORNIA M109 SG129 T75 D105 MA116 Z107 R59 NG52
06 18 03 47 2025 37.4 -117.1 2.1 NEVADA M113 SG130 T78 D102 MA118 Z109 R57 NG53
06 18 03 05 2025 60.0 -135.0 3.1 BRITISH COLUMBIA, CANADA M88 SG140 T86 D127 MA126 Z118 R51 NG30
06 18 02 43 2025 18.3 -100.7 4.0 GUERRERO, MEXICO M136 SG121 T81 D79 MA112 Z106 R62 NG74
06 18 02 32 2025 44.0 147.8 4.1 KURIL ISLANDS M47 SG107 T72 D154 MA98 Z93 R83 NG41
06 18 02 13 2025 57.2 -155.4 3.2 ALASKA PENINSULA M81 SG131 T78 D133 MA118 Z110 R60 NG31
06 18 02 12 2025 33.7 -117.5 2.7 SOUTHERN CALIFORNIA M116 SG127 T75 D99 MA115 Z106 R60 NG57
06 18 02 05 2025 31.7 -104.4 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 18 01 22 2025 35.3 -117.8 2.0 SOUTHERN CALIFORNIA M114 SG128 T76 D100 MA116 Z107 R59 NG55
06 18 00 24 2025 31.7 -104.1 1.9 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 18 00 06 2025 32.1 -103.8 2.1 NEW MEXICO M123 SG131 T84 D93 MA121 Z113 R53 NG60
06 17 23 53 2025 44.3 -115.0 2.1 SOUTHERN IDAHO M108 SG137 T83 D108 MA124 Z115 R51 NG47
06 17 23 13 2025 -6.3 129.1 4.5 BANDA SEA M42 SG57 T56 D115 MA52 Z51 R131 NG91
06 17 22 41 2025 31.6 -104.2 2.2 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 22 37 2025 19.4 -70.1 3.1 DOMINICAN REPUBLIC M136 SG132 T108 D75 MA131 Z127 R44 NG74
06 17 20 23 2025 14.5 -92.6 4.2 OFFSHORE CHIAPAS, MEXICO M142 SG120 T87 D73 MA114 Z108 R60 NG78
06 17 20 08 2025 31.7 -104.1 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 20 06 2025 -57.9 -25.5 5.0 SOUTH SANDWICH ISLANDS REGION M124 SG57 T97 D22 MA68 Z73 R110 NG151
06 17 19 48 2025 17.9 -95.2 4.0 VERACRUZ, MEXICO M138 SG122 T85 D77 MA115 Z109 R59 NG74
06 17 19 41 2025 41.1 -116.3 2.3 NEVADA M110 SG133 T81 D105 MA121 Z112 R54 NG50
06 17 19 37 2025 40.0 -98.8 2.6 KANSAS M116 SG140 T92 D99 MA130 Z122 R45 NG52
06 17 19 30 2025 31.7 -104.1 2.3 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 19 16 2025 44.2 -115.1 3.0 SOUTHERN IDAHO M108 SG136 T83 D108 MA124 Z115 R52 NG47
06 17 19 13 2025 61.4 -148.0 3.4 SOUTHERN ALASKA M82 SG137 T84 D133 MA123 Z115 R54 NG27
06 17 18 51 2025 31.6 -104.3 3.1 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 R54 NG60
06 17 18 40 2025 31.7 -104.3 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 17 56 2025 13.0 145.0 3.8 GUAM REGION M47 SG76 T52 D129 MA67 Z63 R114 NG72
06 17 17 19 2025 31.4 -115.4 3.3 BAJA CALIFORNIA, MEXICO M119 SG126 T76 D96 MA114 Z106 R61 NG60
06 17 17 10 2025 -4.5 139.3 4.4 PAPUA, INDONESIA M49 SG59 T48 D114 MA51 Z48 R131 NG90
06 17 17 03 2025 31.7 -104.3 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 16 49 2025 36.1 70.4 4.2 HINDU KUSH REGION, AFGHANISTAN M26 SG111 T122 D145 MA115 Z118 R69 NG52
06 17 16 47 2025 -7.5 133.3 4.2 KEPULAUAN ARU REGION, INDONESI M46 SG56 T52 D113 MA49 Z48 R133 NG93
06 17 16 25 2025 44.6 148.8 4.2 KURIL ISLANDS M48 SG108 T73 D153 MA98 Z93 R82 NG41
06 17 16 18 2025 53.5 -133.2 3.3 HAIDA GWAII REGION M93 SG136 T81 D122 MA122 Z114 R54 NG36
06 17 15 58 2025 -7.3 127.1 4.2 KEPULAUAN BARAT DAYA, INDONESI M42 SG56 T58 D114 MA51 Z51 R131 NG93
06 17 15 38 2025 34.7 24.0 4.6 CRETE, GREECE M63 SG129 T158 D119 MA140 Z148 R43 NG57
06 17 15 25 2025 28.9 51.5 4.2 SOUTHERN IRAN M40 SG112 T138 D129 MA120 Z126 R64 NG61
06 17 15 01 2025 14.4 -93.9 4.1 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T85 D74 MA113 Z107 R61 NG78
06 17 14 21 2025 -8.4 117.9 4.1 SUMBAWA REGION, INDONESIA M37 SG56 T66 D114 MA54 Z56 R129 NG94
06 17 14 16 2025 -50.3 112.5 4.8 SOUTHEAST INDIAN RIDGE M73 SG18 T64 D73 MA26 Z33 R158 NG136
06 17 14 06 2025 -4.3 102.5 4.5 SOUTHERN SUMATRA, INDONESIA M26 SG63 T82 D118 MA65 Z68 R119 NG90
06 17 13 57 2025 -14.5 -74.0 4.0 CENTRAL PERU M167 SG98 T94 D42 MA99 Z98 R76 NG108
06 17 13 52 2025 11.9 126.1 4.4 PHILIPPINE ISLANDS REGION M30 SG75 T67 D133 MA70 Z69 R112 NG73
06 17 13 45 2025 38.9 70.8 4.5 TAJIKISTAN M27 SG114 T121 D147 MA117 Z120 R67 NG49
06 17 13 35 2025 -5.0 102.9 4.7 SOUTHERN SUMATRA, INDONESIA M27 SG63 T81 D117 MA64 Z67 R119 NG91
06 17 13 10 2025 30.8 -114.1 4.1 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 R60 NG60
06 17 12 38 2025 51.7 175.8 4.4 RAT ISLANDS, ALEUTIAN ISLANDS M66 SG119 T72 D143 MA106 Z99 R72 NG35
06 17 12 05 2025 41.1 -116.3 2.0 NEVADA M110 SG133 T81 D105 MA121 Z112 R54 NG50
06 17 12 00 2025 -23.1 -175.3 4.9 TONGA REGION M97 SG52 T3 D79 MA38 Z29 R138 NG109
06 17 11 04 2025 41.1 -116.3 2.7 NEVADA M110 SG133 T81 D105 MA121 Z112 R54 NG50
06 17 10 44 2025 41.1 -116.3 2.1 NEVADA M110 SG133 T81 D105 MA121 Z112 R54 NG50
06 17 10 42 2025 41.1 -116.3 2.0 NEVADA M110 SG133 T81 D105 MA121 Z112 R54 NG50
06 17 10 31 2025 31.2 -115.5 3.1 BAJA CALIFORNIA, MEXICO M119 SG126 T75 D96 MA114 Z106 R61 NG60
06 17 10 28 2025 -23.2 -175.6 5.0 TONGA REGION M97 SG51 T3 D79 MA38 Z29 R138 NG109
06 17 10 18 2025 18.6 -101.2 4.2 MICHOACAN, MEXICO M136 SG121 T81 D80 MA112 Z106 R62 NG73
06 17 10 09 2025 32.0 -115.6 3.4 BAJA CALIFORNIA, MEXICO M118 SG126 T76 D97 MA114 Z106 R60 NG59
06 17 09 53 2025 36.8 70.7 4.1 HINDU KUSH REGION, AFGHANISTAN M26 SG112 T121 D146 MA115 Z118 R68 NG51
06 17 09 16 2025 -23.1 -175.0 4.8 TONGA REGION M97 SG52 T2 D79 MA38 Z29 R138 NG109
06 17 09 09 2025 41.0 -116.3 3.2 NEVADA M110 SG133 T81 D105 MA121 Z112 R54 NG50
06 17 08 40 2025 38.0 -118.8 2.7 CENTRAL CALIFORNIA M111 SG130 T77 D103 MA117 Z109 R58 NG53
06 17 08 36 2025 8.3 126.7 5.3 MINDANAO, PHILIPPINES M32 SG72 T64 D130 MA66 Z65 R116 NG77
06 17 08 13 2025 50.7 156.8 4.7 KURIL ISLANDS M54 SG115 T75 D153 MA104 Z98 R76 NG35
06 17 08 12 2025 -33.0 -13.3 5.0 SOUTHERN MID-ATLANTIC RIDGE M117 SG80 T123 D44 MA92 Z99 R87 NG126
06 17 07 36 2025 31.7 -104.2 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 07 27 2025 14.2 -93.4 4.1 OFF COAST OF CHIAPAS, MEXICO M142 SG120 T86 D73 MA114 Z108 R61 NG78
06 17 07 19 2025 17.8 -72.7 3.4 HAITI REGION M138 SG130 T106 D74 MA128 Z124 R46 NG76
06 17 06 47 2025 -0.9 -78.1 4.2 ECUADOR M158 SG110 T95 D56 MA109 Z106 R65 NG94
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: 17JUN2025 06:47:15 0.9S 78.1W ML=4.2 EMSC ECUADOR
P: 16JUN2025 173012 2.0S 78.0W 4.0-5.4 ABAAA Ecuador
O: 18JUN2025 04:18:37 3.6N 126.8E MB=4.6 EMSC KEPULAUAN TALAUD, INDONESIA
P: 16JUN2025 173000 5.0N 127.0E 4.0-5.6 ABAAA Halmahera
O: 17JUN2025 13:35:19 5.0S 102.9E mb=4.7 EMSC SOUTHERN SUMATRA, INDONESIA
O: 17JUN2025 14:06:19 4.3S 102.5E MB=4.5 EMSC SOUTHERN SUMATRA, INDONESIA
P: 14JUN2025 173023 6.0S 104.0E 4.0-5.4 BAAAA So. of Sumatera
O: 17JUN2025 17:10:13 4.5S 139.3E MB=4.4 EMSC PAPUA, INDONESIA
P: 16JUN2025 173028 3.0S 138.0E 4.0-5.5 ABBAA West Irian, PNG
O: 17JUN2025 23:13:39 6.3S 129.1E MB=4.5 EMSC BANDA SEA
P: 15JUN2025 173008 6.0S 128.0E 4.0-5.6 AAAAA Banda Sea
O: 17JUN2025 15:58:00 7.3S 127.1E ML=4.2 EMSC KEPULAUAN BARAT DAYA, INDONESI
P: 20JUN2025 173008 8.0S 127.0E 4.0-5.4 BAAAA Banda Sea
O: 17JUN2025 16:47:35 7.5S 133.3E ML=4.2 EMSC KEPULAUAN ARU REGION, INDONESI
P: 18JUN2025 173027 5.0S 134.0E 4.0-5.6 ABAAA West Irian, PNG
O: 18JUN2025 08:24:49 8.2S 107.1E MB=4.8 EMSC JAVA, INDONESIA
P: 18JUN2025 173199 10.0S 107.0E 4.0-5.4 ABAAA So. of Java
O: 17JUN2025 08:36:24 8.3N 126.7E MW=5.3 EMSC MINDANAO, PHILIPPINES
P: 16JUN2025 173043 10.0N 127.0E 3.5-5.1 ABAAA Luzon, Philippines
O: 17JUN2025 14:21:12 8.4S 117.9E ML=4.1 EMSC SUMBAWA REGION, INDONESIA
P: 12JUN2025 173026 8.0S 119.0E 4.0-5.6 BAAAA Sumbawa Island area
O: 17JUN2025 13:52:58 11.9N 126.1E ML=4.4 EMSC PHILIPPINE ISLANDS REGION
P: 13JUN2025 173043 12.0N 126.0E 3.5-4.9 BAAAA Luzon, Philippines
P: 16JUN2025 173043 10.0N 127.0E 3.5-5.1 ABAAA Luzon, Philippines
O: 17JUN2025 17:56:48 13.0N 145.0E ML=3.8 EMSC GUAM REGION
P: 17JUN2025 173054 14.0N 147.0E 4.0-5.4 AABAA So. Marianas/Guam
O: 17JUN2025 07:27:05 14.2N 93.4W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 17JUN2025 20:23:00 14.5N 92.6W ML=4.2 EMSC OFFSHORE CHIAPAS, MEXICO
O: 18JUN2025 09:55:51 14.7N 94.1W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:17:51 14.7N 94.2W ML=4.3 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:48:38 14.7N 94.3W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 10:07:22 14.8N 94.1W mb=4.7 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 18JUN2025 09:49:23 14.9N 94.0W Mw=5.8 EMSC OFF COAST OF CHIAPAS, MEXICO
O: 17JUN2025 15:01:13 14.4N 93.9W ML=4.1 EMSC OFF COAST OF CHIAPAS, MEXICO
P: 14JUN2025 173035 16.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
P: 20JUN2025 173035 16.0N 93.0W 3.5-5.4 AAAAA Chiapas, Mexico
O: 17JUN2025 13:57:57 14.5S 74.0W ML=4.0 EMSC CENTRAL PERU
P: 16JUN2025 173191 13.0S 77.0W 4.0-5.6 AACAA Central Peru
O: 18JUN2025 09:49:23 14.9N 94.0W MW=6.2 BGS OFF COAST OF CHIAPAS, MEXICO
P: 17JUN2025 173035 17.0N 94.0W 3.5-5.3 ABAAA Chiapas, Mexico
O: 17JUN2025 07:19:26 17.8N 72.7W ML=3.4 EMSC HAITI REGION
P: 13JUN2025 173056 20.0N 71.0W 3.0-4.9 BCBAA Bahamas/No. Caribbean
O: 17JUN2025 19:48:13 17.9N 95.2W ML=4.0 EMSC VERACRUZ, MEXICO
P: 17JUN2025 173035 17.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
O: 18JUN2025 02:43:52 18.3N 100.7W ML=4.0 EMSC GUERRERO, MEXICO
P: 14JUN2025 173052 18.0N 100.0W 3.5-5.4 BAAAA Oaxaca, Mexico
O: 17JUN2025 10:18:53 18.6N 101.2W ML=4.2 EMSC MICHOACAN, MEXICO
P: 16JUN2025 173048 19.0N 102.0W 3.5-5.7 AAAAA Michoacan, Mexico
O: 17JUN2025 22:37:38 19.4N 70.1W ML=3.1 EMSC DOMINICAN REPUBLIC
P: 13JUN2025 173056 20.0N 71.0W 3.0-4.9 BAAAA Bahamas/No. Caribbean
O: 18JUN2025 05:02:50 21.1S 69.0W ML=4.0 EMSC TARAPACA, CHILE
P: 16JUN2025 173207 21.0S 69.0W 4.0-5.7 AAAAA Coast No. Chile
O: 17JUN2025 09:16:32 23.1S 175.0W MB=4.8 EMSC TONGA REGION
O: 17JUN2025 12:00:21 23.1S 175.3W mb=4.9 EMSC TONGA REGION
O: 17JUN2025 10:28:30 23.2S 175.6W mb=5.0 EMSC TONGA REGION
P: 14JUN2025 173216 23.0S 177.0W 4.0-5.8 BABAA Tonga Islands
O: 18JUN2025 09:35:44 28.0N 112.2W ML=3.4 EMSC GULF OF CALIFORNIA
P: 11JUN2025 173058 28.0N 112.0W 3.5-4.9 CAAAA Gulf of California
O: 18JUN2025 09:14:08 28.0S 66.7W MB=4.2 EMSC CATAMARCA, ARGENTINA
P: 20JUN2025 173205 28.0S 68.0W 4.0-5.7 AAAAA Argentina
O: 17JUN2025 15:25:37 28.9N 51.5E MB=4.2 EMSC SOUTHERN IRAN
P: 19JUN2025 173066 28.0N 52.0E 3.5-5.2 AAAAA So. Iran/Persian Gulf
O: 17JUN2025 13:10:42 30.8N 114.1W ML=4.1 EMSC GULF OF CALIFORNIA
O: 18JUN2025 10:53:48 31.2N 114.3W ML=3.6 EMSC GULF OF CALIFORNIA
P: 16JUN2025 173099 30.2N 114.1W 2.0-4.1 AAAAA SW U.S.A
O: 17JUN2025 10:31:42 31.2N 115.5W ML=3.1 EMSC BAJA CALIFORNIA, MEXICO
O: 17JUN2025 10:09:40 32.0N 115.6W ML=3.4 EMSC BAJA CALIFORNIA, MEXICO
O: 17JUN2025 17:19:59 31.4N 115.4W ML=3.3 EMSC BAJA CALIFORNIA, MEXICO
P: 19JUN2025 173104 33.0N 115.9W 2.5-4.8 AAAAA So. California
O: 18JUN2025 03:58:14 31.5N 104.2W ML=3.0 EMSC WESTERN TEXAS
O: 17JUN2025 18:51:59 31.6N 104.3W ML=3.1 EMSC WESTERN TEXAS
O: 17JUN2025 22:41:59 31.6N 104.2W ML=2.2 EMSC WESTERN TEXAS
O: 17JUN2025 07:36:12 31.7N 104.2W ML=2.0 EMSC WESTERN TEXAS
O: 17JUN2025 17:03:06 31.7N 104.3W ML=2.0 EMSC WESTERN TEXAS
O: 17JUN2025 18:40:37 31.7N 104.3W ML=2.0 EMSC WESTERN TEXAS
O: 17JUN2025 19:30:18 31.7N 104.1W ML=2.3 EMSC WESTERN TEXAS
O: 17JUN2025 20:08:55 31.7N 104.1W ML=2.5 EMSC WESTERN TEXAS
O: 18JUN2025 00:24:53 31.7N 104.1W ML=1.9 EMSC WESTERN TEXAS
O: 18JUN2025 02:05:03 31.7N 104.4W ML=2.0 EMSC WESTERN TEXAS
O: 18JUN2025 00:06:34 32.1N 103.8W ML=2.1 EMSC NEW MEXICO
P: 17JUN2025 173100 31.2N 104.1W 2.0-4.1 AAAAA SW U.S.A
O: 17JUN2025 08:12:55 33.0S 13.3W MB=5.0 EMSC SOUTHERN MID-ATLANTIC RIDGE
O: 18JUN2025 02:12:46 33.7N 117.5W ML=2.7 EMSC SOUTHERN CALIFORNIA
P: 19JUN2025 173107 34.1N 117.4W 2.5-5.0 AAAAA So. California
O: 17JUN2025 15:38:25 34.7N 24.0E MB=4.6 EMSC CRETE, GREECE
P: 17JUN2025 173083 34.0N 26.0E 3.0-4.6 AABAA Crete
O: 18JUN2025 01:22:34 35.3N 117.8W ML=2.0 EMSC SOUTHERN CALIFORNIA
P: 17JUN2025 173113 35.9N 117.7W 2.5-4.8 AAAAA So. California
O: 17JUN2025 16:49:07 36.1N 70.4E MB=4.2 EMSC HINDU KUSH REGION, AFGHANISTAN
O: 17JUN2025 09:53:06 36.8N 70.7E mb=4.1 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 16JUN2025 173084 37.0N 70.0E 3.8-5.2 AAAAA Hindu Kush/Pakistan
O: 18JUN2025 03:47:04 37.4N 117.1W ML=2.1 EMSC NEVADA
P: 16JUN2025 173071 36.7N 117.2W 2.5-4.8 AAAAA California/Nevada area
O: 17JUN2025 09:09:52 41.0N 116.3W ML=3.2 EMSC NEVADA
O: 17JUN2025 10:42:03 41.1N 116.3W ML=2.0 EMSC NEVADA
O: 17JUN2025 10:44:45 41.1N 116.3W ML=2.1 EMSC NEVADA
O: 17JUN2025 11:04:43 41.1N 116.3W ML=2.7 EMSC NEVADA
O: 17JUN2025 12:05:55 41.1N 116.3W ML=2.0 EMSC NEVADA
O: 17JUN2025 19:41:49 41.1N 116.3W ML=2.3 EMSC NEVADA
P: 15JUN2025 173127 40.0N 117.9W 2.5-4.6 AABAA California/Nevada area
O: 17JUN2025 08:40:41 38.0N 118.8W MD=2.7 EMSC CENTRAL CALIFORNIA
O: 18JUN2025 09:04:20 38.2N 117.9W ML=2.0 EMSC NEVADA
P: 17JUN2025 173074 38.2N 118.8W 2.5-4.6 AAAAA California/Nevada area
O: 18JUN2025 03:48:59 38.8N 122.8W MD=2.4 EMSC NORTHERN CALIFORNIA
P: 19JUN2025 173079 38.8N 122.7W 2.5-4.6 AAAAA Central California
O: 17JUN2025 13:45:26 38.9N 70.8E MB=4.5 EMSC TAJIKISTAN
P: 14JUN2025 173084 38.0N 74.0E 3.8-5.5 BACAA Hindu Kush/Pakistan
O: 17JUN2025 19:37:33 40.0N 98.8W ML=2.6 EMSC KANSAS
P: 19JUN2025 173117 39.0N 99.0W 2.0-3.9 AAAAA Southern Plains
O: 18JUN2025 11:49:09 41.9N 119.6W MD=2.3 EMSC NEVADA
P: 12JUN2025 173152 42.2N 120.3W 2.0-4.1 CAAAA Oregon state, U.S.
O: 18JUN2025 02:32:23 44.0N 147.8E MB=4.1 EMSC KURIL ISLANDS
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 AAAAA Hokkaido, Japan
O: 17JUN2025 19:16:26 44.2N 115.1W ML=3.0 EMSC SOUTHERN IDAHO
O: 17JUN2025 23:53:13 44.3N 115.0W ML=2.1 EMSC SOUTHERN IDAHO
P: 17JUN2025 173139 44.4N 115.1W 2.0-4.1 AAAAA Montana/Idaho
O: 17JUN2025 16:25:56 44.6N 148.8E MB=4.2 EMSC KURIL ISLANDS
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 ABAAA Hokkaido, Japan
O: 17JUN2025 14:16:21 50.3S 112.5E MB=4.8 EMSC SOUTHEAST INDIAN RIDGE
O: 17JUN2025 08:13:19 50.7N 156.8E MB=4.7 EMSC KURIL ISLANDS
P: 16JUN2025 173142 49.0N 156.0E 3.5-5.6 ABAAA NE Pacific
O: 17JUN2025 12:38:30 51.7N 175.8E MB=4.4 EMSC RAT ISLANDS, ALEUTIAN ISLANDS
P: 18JUN2025 173173 52.0N 175.0E 4.0-5.7 AAAAA Rat Islands
O: 17JUN2025 16:18:36 53.5N 133.2W ML=3.3 EMSC HAIDA GWAII REGION
P: 17JUN2025 173166 53.0N 131.0W 3.0-5.2 AABAA British Colombia
O: 18JUN2025 02:13:31 57.2N 155.4W ML=3.2 EMSC ALASKA PENINSULA
P: 13JUN2025 173162 54.7N 156.9W 3.5-5.1 BCAAA Alaska Peninsula
O: 17JUN2025 20:06:11 57.9S 25.5W MB=5.0 EMSC SOUTH SANDWICH ISLANDS REGION
P: 17JUN2025 173236 56.0S 27.0W 4.0-5.7 ABAAA So. Sandwich Islands
O: 18JUN2025 03:05:44 60.0N 135.0W ML=3.1 EMSC BRITISH COLUMBIA, CANADA
P: 17JUN2025 173176 59.0N 136.0W 3.0-4.6 AAAAA Southeast Alaska
O: 17JUN2025 19:13:36 61.4N 148.0W ML=3.4 EMSC SOUTHERN ALASKA
P: 18JUN2025 173180 60.1N 147.1W 3.2-5.3 ABAAA Central Alaska
O: 18JUN2025 05:18:17 63.1N 149.6W ML=3.8 EMSC CENTRAL ALASKA
P: 20JUN2025 173181 62.7N 150.6W 3.2-4.9 AAAAA Central Alaska
O: 18JUN2025 10:01:37 66.1N 149.0W ML=3.2 EMSC NORTHERN ALASKA
P: 20JUN2025 173182 63.0N 148.6W 3.2-5.0 CAAAA Central Alaska
June 17, 2025
Notable earthquakes and events:
An eruption of Mount Lewotobi, Laki-laki occurred toda at 17:35 Local time.
This eruption blasted ash moe than 11,000 feet into the sky above the volcano.
A tsunami was considered possible and was being investigated by JMA and BMG.
No fatalities have been reported in the current eruption.
Lewotobi is located near Flores at 8.5S 122.8E in Indonesia and last
erupted in November, 2024 killing at least 10 people.
Tropical Storm Dalila (01W) continued today in the area south of Baja California with winds up to to 50 kts. It is expected to track to the west but not to affect regional seismicity at this time. The Antipode at 19S 69E in the South Indian Ocean has been active with similary Storms in the past week and could see additional enhanced seismicity at this time. An earthquake of M 4.9 hit within about 100 km of this Indian Ocean epicenter mid-day on June 16 and was probably promoted by energy from TS Dalila.
The earthquake in the South Indian Ocean occurred within minutes of local solar noon and was
probably also promoted by tidal and/or geomagnetic stresses which maximize near this hour.
TROPICAL STORM DALILA (04E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DALILA 2025-06-16 15:00 UT 19.0N 111.0W 050 kts South of Baja California
Tropical Storm Dalila (01W) continued today in the area south of Baja California with winds up to to 50 kts. It is expected to track to the west but not to affect regional seismicity at this time. The Antipode at 19S 69E in the South Indian Ocean has been active with similary Storms in the past week and could see additional enhanced seismicity at this time. An earthquake of M 4.9 hit within about 100 km of this Indian Ocean epicenter mid-day on June 16 and was probably promoted by energy from TS Dalila.
O: 16JUN2025 07:25:26 20.2S 67.8E ML=4.9 EMSC MID-INDIAN RIDGE
P: 16JUN2025 173196 20.0S 69.0E 4.0-5.4 AAAAA So. Indian Ocean
Two moderate earthquakes of M 4.4 and 4.6 also occurred in Hindu Kush, Afghanistan
today. Enhanced seismicity at this epicenter had been expected in this summary
on June 14, 2025 when a series of moderately strong quakes hit at the antipode
in the South Pacific. At the time this summary noted:
"Some of the strongest earthquakes in the world today occurred on the Southern East Pacific Rise and included events of M 4.6, 5.1 and M 5.7. These were not felt in this remote epicentral area.
The antipode of this activity in the East Pacific is at 36N 70E - in Hindu Kush, Afghanistan.
Moderate earthquake pairs are not uncommon within days in these two locations
and a moderate event could be expected in the next several days in the Hindu Kush area." (June 14, 2025)
O: 17JUN2025 16:49:07 36.2M 70.4E ML=4.4 EMSC HINDU KUSH REGION, AFGHANISTAN
O: 16JUN2025 10:34:13 36.5N 70.4E MB=4.4 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 16JUN2025 173084 37.0N 70.0E 3.8-5.2 AAAAA Hindu Kush/Pakistan
NEIC reported an earthquake of M 5.0 in Ecuador was felt with intensity up to II-III in the area(s) of Ecuador with IV in Latacunga, Cotopaxi and Tena, Napo and III in Guano, Chimborazo, in Pichincha at Quito and Sangolqui and in Ambato, Tungurahua.
EMSC reported moderate intensity in Ecuador at Tena, Latacunga, Sangolqui, Quero and Tutamandahostel.
NEIC reported an earthquake of M 4.3 in Greece was felt with intensity up to II-III in the area(s) of Greece with II in Polikhronon, Halkidiki and Thessaloniki.
NEIC reported an earthquake of M 3.7 in the Alaska Peninsula was felt with intensity up to II-III in the area(s) of the Alaska Peninsula with III in King Cove and II at Sand Point, Alaska.
EMSC reported an earthquake of M 3.7 in Northern Peru was felt with intensity up to IV in the area(s) of Northern Peru at Carmen de la Legua Reynoso San Isidro, San Luis, Santiago de Surco, Cieneguilla and Lima.
An earlier event of M 4.2 was felt with moderate intensity at the Lima airport at Callao, San Isidro, Indepencia, Santiago de Surco, Punta Hermosa, Cieneguilla.
EMSC reported an earthquake of M 4.2 in the Aegean Sea was felt with intensity up to IV in the area(s) of the Aegean Sea in Greece at Nea Skioni, Pefkochori, Skala Fourkas, Neos Marmaras, Nikiti, Sarti, Volos, Polygyros, Dimos Larisaion, Pylaia, Triandria, Thessaloniki, Ampelokipoi, Plovdiv, Edremit.
BMG reported an earthquake of M 5.2 (2N 126E) in Halmahera was felt with intensity up to IV in the area(s) of Halmahera in Ibu and in Siau, Tagulandang Biaro.
GeoNet reported the following parameters for an earthquake in South Island, today:
O: 17JUN2025 02:57:11 45.2S 167.3E MB=4.2 GEONET Felt with weak intensity in the area south of Te Anau, South Island. 7 reports of felt intensity came from the area east and north of the epicenter including 5 with weak intensity; 2 light; 0 moderate; 0 strong; 0 severe and 0 extreme.
TROPICAL DEPRESSION 05E
---- ------- ---------- -------- ----- ------ ------- ---------------
TD 05E 2025-06-17 00:00 UT 11.0N 92.4W 040 kts South of Guatemala
Tropical Depression 05E formed today in the area south of Guatemala with winds up to to 40 kts. It is expected to track to the west and north making landfall near June 19 near Acapulco and Punta Escondida, Guerrero, Mexico. It could help trigger a moderate to large earthquake along coastal Mexico at that time. The antipode at that time is 16S 82E - an aseismic zone where little antipodal activity is expected.
TROPICAL STORM DALILA (04E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DALILA 2025-06-16 15:00 UT 19.0N 111.0W 050 kts South of Baja California
Tropical Storm Dalila (04E) continued today in the area south of Baja California with winds up to to 50 kts. It is expected to track to the west but not to affect regional seismicity at this time. The Antipode at 19S 69E in the South Indian Ocean has been active with similary Storms in the past week and could see additional enhanced seismicity at this time. An earthquake of M 4.9 hit within about 100 km of this Indian Ocean epicenter mid-day on June 16 and was probably promoted by energy from TS Dalila.
O: 16JUN2025 07:25:26 20.3S 67.9E MB=4.9 EMSC MID-INDIAN RIDGE
P: 16JUN2025 173196 20.0S 69.0E 4.0-5.4 AAAAA So. Indian Ocean
A tropical cyclone may be forming south of San Salvador. This system is currently at 10N 89W with winds up to 28 kts. Neither local nor antipodal seismicity is expected to be affected at this time with this storm.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
1210 0141 0148 0201 C6.5 (June 16, 2025) 6.8E-03
Oaxaca M 4.2 02:05 UT
1230 0300 0314 0320 C6.7 (June 16, 2025) 6.6E-03
Coast of Oregon M 3.5 03:26 UT
1250 0408 0423 0443 M1.8 (June 16, 2025) 2.7E-02
Kuril Isl. M 4.7 04:07 UT
1280 0625 0639 0645 C5.0 (June 16, 2025) 4.5E-03
1300 0812 0822 0830 C3.8 (June 16, 2025) 3.6E-03
Bolivia M 4.4 08:19 UT
Andreanof M 2.5 08:20 UT
1320 0917 0938 0948 M6.3 (June 16, 2025) 5.3E-02
Western Afghanistan M 4.2 09:20 UT
Owen Fracure Zone M 4.7 09:26 UT
Andaman Is. M 4.8 09:14 UT
1450 1127 1139 1143 M1.4 (June 16, 2025) 1.0E-02
1460 1443 1455 1503 M1.1 (June 16, 2025) 1.0E-02
Virgin Islands M 3.2, 3.2, 15:04 UT
Xizang M 4.5 15:19 UT
1470 1704 1712 1721 C3.1 (June 16, 2025) 3.1E-03
1490 2302 2309 2312 C4.5 (June 16, 2025) 2.3E-03
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: active June 17-18 unsettled June 19. Solar M-flare chance: 75% X-class: 30% proton storm: 30%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 10 16 10 08:00 4 125 148
A strong Gamma Ray Burst was recorded by SWIFT on June 15, 2025 at 22:25:29 UT (#250615A). A preliminary UVOT Magnitude of V>19.5 was assigned to this GRB.
An earthquake of M 4.0 was recorded in southern Peru - also at 22:25 on June 15, 2025.
A strong Gamma Ray Burst was recorded by SWIFT on June 12, 2025 at 01:02:05 UT (#250612A). No preliminary UVOT Magnitude was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 5, 2025 at 18:52:31 UT (#250605A). A preliminary UVOT Magnitude of V>20.07 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on June 3, 2025 at 01:10:23 UT (#250603A). A preliminary UVOT Magnitude of V>19.0 was assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 30, 2025 at 18:58:42 UT (#250530C). A preliminary UVOT Magnitude was not assigned to this GRB.
A strong Gamma Ray Burst was recorded by SWIFT on May 20, 2025 at 02:42:17 UT (#250520A). A preliminary UVOT Magnitude of V>18.9 was assigned to this GRB.
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.
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); Reykjanes Ridge (RDIS), 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
06 17 07 36 2025 31.7 -104.2 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 06 49 2025 31.6 -104.4 2.5 WESTERN TEXAS M123 SG131 T84 D93 MA120 Z113 R54 NG60
06 17 06 47 2025 -0.9 -78.1 4.2 ECUADOR M158 SG110 T95 D56 MA109 Z106 R65 NG94
06 17 06 25 2025 2.2 126.6 5.1 MOLUCCA SEA M35 SG66 T62 D124 MA60 Z60 R122 NG83
06 17 06 21 2025 26.8 139.5 4.3 BONIN ISLANDS, JAPAN REGION M39 SG90 T65 D144 MA81 Z78 R100 NG59
06 17 05 59 2025 67.6 -161.7 3.3 NORTHERN ALASKA M74 SG138 T88 D141 MA125 Z118 R53 NG20
06 17 05 36 2025 32.7 -115.9 2.0 SOUTHERN CALIFORNIA M117 SG127 T76 D97 MA115 Z107 R60 NG58
06 17 05 25 2025 31.7 -104.1 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 17 04 14 2025 16.1 -97.6 4.0 OAXACA, MEXICO M139 SG120 T83 D76 MA113 Z106 R62 NG76
06 17 03 38 2025 36.2 -118.3 2.1 CENTRAL CALIFORNIA M113 SG129 T76 D101 MA116 Z108 R59 NG55
06 17 03 20 2025 -7.1 155.7 4.8 SOLOMON ISLANDS M65 SG58 T32 D106 MA46 Z41 R133 NG92
06 17 03 06 2025 -24.0 -66.8 4.4 JUJUY, ARGENTINA M163 SG90 T96 D32 MA94 Z94 R82 NG117
06 17 02 57 2025 -45.3 167.5 4.0 SOUTH ISLAND OF NEW ZEALAND M93 SG25 T29 D68 MA12 Z3 R164 NG131
06 17 02 46 2025 -0.9 -78.1 5.0 ECUADOR M158 SG110 T95 D56 MA109 Z106 R65 NG94
06 17 02 24 2025 -25.2 179.7 4.4 SOUTH OF FIJI ISLANDS M93 SG48 T7 D80 MA34 Z25 R142 NG111
06 17 02 07 2025 34.5 140.2 4.1 NEAR EAST COAST OF HONSHU, M40 SG98 T69 D150 MA89 Z85 R92 NG51
06 17 00 22 2025 40.3 -124.6 2.2 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D107 MA116 Z107 R59 NG50
06 16 23 55 2025 -1.3 -81.0 4.0 OFF COAST OF ECUADOR M159 SG109 T92 D56 MA108 Z104 R67 NG94
06 16 23 47 2025 -20.8 -69.7 3.8 TARAPACA, CHILE M166 SG93 T95 D35 MA96 Z95 R80 NG114
06 16 23 45 2025 44.8 149.7 4.2 KURIL ISLANDS M49 SG108 T72 D153 MA98 Z93 R82 NG41
06 16 22 41 2025 15.4 -95.0 4.0 OFFSHORE OAXACA, MEXICO M141 SG120 T85 D75 MA114 Z107 R61 NG77
06 16 22 21 2025 35.1 -96.0 2.0 OKLAHOMA M122 SG137 T92 D94 MA128 Z120 R47 NG57
06 16 22 05 2025 -24.4 -67.2 3.6 SALTA, ARGENTINA M164 SG90 T95 D32 MA93 Z93 R82 NG118
06 16 21 44 2025 71.7 -1.9 4.1 JAN MAYEN ISLAND REGION M71 SG162 T128 D136 MA159 Z155 R22 NG21
06 16 21 38 2025 15.7 -94.7 4.7 OFFSHORE OAXACA, MEXICO M141 SG121 T85 D75 MA114 Z108 R60 NG76
06 16 21 32 2025 46.5 -122.4 2.5 WASHINGTON M103 SG135 T81 D112 MA122 Z113 R54 NG44
06 16 20 55 2025 40.4 -125.0 2.5 OFFSHORE NORTHERN CALIFORNIA M107 SG129 T75 D108 MA116 Z107 R60 NG50
06 16 20 29 2025 30.7 -114.1 3.9 GULF OF CALIFORNIA M120 SG126 T76 D95 MA114 Z106 R60 NG60
06 16 20 08 2025 31.6 -104.0 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 16 19 54 2025 31.6 -104.0 2.4 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 16 19 24 2025 32.0 -103.3 2.6 WESTERN TEXAS M123 SG132 T85 D93 MA121 Z114 R53 NG60
06 16 19 19 2025 31.6 -104.0 2.9 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 16 18 56 2025 -37.7 -75.0 4.0 OFF COAST OF BIO-BIO, CHILE M162 SG76 T84 D19 MA78 Z79 R97 NG131
06 16 18 21 2025 31.7 -104.4 2.8 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 16 18 11 2025 31.6 -104.0 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 16 18 04 2025 31.6 -104.0 2.1 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 16 17 57 2025 39.8 23.5 4.2 AEGEAN SEA M63 SG134 T155 D122 MA144 Z151 R40 NG52
06 16 17 40 2025 -12.2 -77.4 4.2 NEAR COAST OF CENTRAL PERU M168 SG100 T91 D45 MA100 Z98 R75 NG105
06 16 16 03 2025 50.5 -130.3 4.0 VANCOUVER ISLAND, CANADA REGIO M97 SG135 T80 D118 MA121 Z112 R55 NG39
06 16 15 57 2025 19.0 -65.0 3.1 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 R42 NG75
06 16 15 56 2025 19.0 -65.0 3.1 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 R42 NG75
06 16 15 19 2025 54.9 -161.0 3.7 ALASKA PENINSULA M79 SG128 T75 D134 MA114 Z106 R64 NG33
06 16 15 19 2025 33.7 89.2 4.5 WESTERN XIZANG M13 SG103 T106 D152 MA104 Z105 R79 NG53
06 16 15 04 2025 19.0 -65.0 3.2 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 R42 NG75
06 16 14 40 2025 19.0 -65.0 3.2 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 R42 NG75
06 16 14 36 2025 18.9 -65.0 3.2 VIRGIN ISLANDS REGION M135 SG133 T113 D75 MA133 Z130 R42 NG75
06 16 13 40 2025 11.9 -61.0 3.9 GRENADA REGION, WINDWARD ISLAN M139 SG126 T115 D68 MA129 Z127 R46 NG82
06 16 12 34 2025 -49.9 -113.5 4.9 SOUTHERN EAST PACIFIC RISE M143 SG54 T55 D27 MA52 Z50 R123 NG140
06 16 10 34 2025 36.5 70.4 4.4 HINDU KUSH REGION, AFGHANISTAN M26 SG112 T122 D145 MA115 Z118 R68 NG52
06 16 10 09 2025 14.8 54.9 4.8 OWEN FRACTURE ZONE REGION M39 SG98 T133 D120 MA107 Z114 R77 NG74
06 16 09 52 2025 -16.0 -70.5 4.4 SOUTHERN PERU M165 SG98 T96 D40 MA100 Z99 R76 NG109
06 16 09 47 2025 -4.6 153.6 4.6 NEW IRELAND REGION, P.N.G. M62 SG60 T35 D110 MA49 Z44 R131 NG90
06 16 09 31 2025 44.3 -115.0 2.3 SOUTHERN IDAHO M108 SG137 T83 D108 MA124 Z115 R51 NG47
06 16 09 26 2025 32.0 -103.4 2.0 WESTERN TEXAS M123 SG132 T85 D93 MA121 Z114 R53 NG60
06 16 09 26 2025 14.8 54.9 4.7 OWEN FRACTURE ZONE REGION M39 SG98 T133 D120 MA107 Z114 R77 NG74
06 16 09 23 2025 32.0 -103.8 3.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R53 NG60
06 16 09 20 2025 34.7 62.0 4.2 WESTERN AFGHANISTAN M32 SG113 T128 D139 MA118 Z123 R65 NG54
06 16 09 14 2025 10.9 93.6 4.8 ANDAMAN ISLANDS, INDIA REGION M11 SG80 T96 D132 MA82 Z85 R101 NG76
06 16 09 12 2025 20.7 -95.1 4.3 BAY OF CAMPECHE M136 SG125 T87 D80 MA118 Z111 R57 NG71
06 16 09 08 2025 14.8 55.0 4.9 OWEN FRACTURE ZONE REGION M39 SG98 T133 D120 MA107 Z114 R77 NG74
06 16 09 07 2025 -22.9 -66.1 4.6 JUJUY, ARGENTINA M163 SG92 T97 D33 MA95 Z95 R81 NG116
06 16 08 29 2025 31.4 -115.5 3.2 BAJA CALIFORNIA, MEXICO M118 SG126 T76 D96 MA114 Z106 R61 NG60
06 16 08 24 2025 20.0 -100.8 3.9 GUANAJUATO, MEXICO M135 SG122 T81 D81 MA114 Z107 R60 NG72
06 16 08 19 2025 -22.6 -67.8 4.4 POTOSI, BOLIVIA M164 SG92 T96 D34 MA95 Z95 R81 NG116
06 16 07 38 2025 -7.3 121.3 4.0 FLORES SEA M38 SG57 T63 D115 MA54 Z54 R129 NG93
06 16 07 33 2025 28.1 -112.3 3.4 GULF OF CALIFORNIA M123 SG124 T76 D92 MA113 Z105 R61 NG63
06 16 07 27 2025 31.7 -104.4 2.0 WESTERN TEXAS M123 SG131 T84 D93 MA121 Z113 R54 NG60
06 16 07 25 2025 -20.3 67.9 4.9 MID-INDIAN RIDGE M50 SG61 T107 D94 MA72 Z79 R112 NG108
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: 17JUN2025 06:47:15 0.9S 78.1W ML=4.2 EMSC ECUADOR
O: 17JUN2025 02:46:27 0.9S 78.1W MB=5.0 EMSC ECUADOR
P: 16JUN2025 173012 2.0S 78.0W 4.0-5.4 ABAAA Ecuador
O: 16JUN2025 23:55:54 1.3S 81.0W ML=4.0 EMSC OFF COAST OF ECUADOR
P: 19JUN2025 173012 1.0S 81.0W 4.0-5.7 BAAAA Ecuador
O: 17JUN2025 06:25:33 2.2N 126.6E MB=5.1 EMSC MOLUCCA SEA
P: 15JUN2025 173002 2.0N 126.0E 4.0-5.4 AAAAA Mindanao, Philippines
O: 16JUN2025 09:47:34 4.6S 153.6E MB=4.6 EMSC NEW IRELAND REGION, P.N.G.
P: 14JUN2025 173016 5.0S 154.0E 4.0-5.4 AAAAA New Britain
O: 17JUN2025 03:20:25 7.1S 155.7E MB=4.8 EMSC SOLOMON ISLANDS
P: 12JUN2025 173024 6.0S 155.0E 4.0-5.4 BBAAA Solomon Islands
O: 16JUN2025 07:38:28 7.3S 121.3E ML=4.0 EMSC FLORES SEA
P: 12JUN2025 173013 7.0S 121.0E 4.0-5.4 BAAAA Flores Island area
O: 16JUN2025 09:14:03 10.9N 93.6E MB=4.8 EMSC ANDAMAN ISLANDS, INDIA REGION
P: 15JUN2025 173030 10.0N 92.0E 4.0-5.6 AABAA Andaman Islands
O: 16JUN2025 13:40:17 11.9N 61.0W ML=3.9 EMSC GRENADA REGION, WINDWARD ISLAN
P: 11JUN2025 173055 11.0N 62.0W 3.4-5.2 BAAAA Windward Islands
O: 16JUN2025 17:40:17 12.2S 77.4W ML=4.2 EMSC NEAR COAST OF CENTRAL PERU
P: 16JUN2025 173191 13.0S 77.0W 4.0-5.6 AAAAA Central Peru
O: 16JUN2025 09:08:29 14.8N 55.0E MB=4.9 EMSC OWEN FRACTURE ZONE REGION
O: 16JUN2025 09:26:24 14.8N 54.9E mb=4.7 EMSC OWEN FRACTURE ZONE REGION
O: 16JUN2025 10:09:36 14.8N 54.9E mb=4.8 EMSC OWEN FRACTURE ZONE REGION
P: 15JUN2025 173031 15.0N 56.0E 3.5-5.1 AAAAA Arabian Sea
P: 16JUN2025 173039 15.0N 54.0E 3.5-5.2 AAAAA Gulf of Aden
O: 16JUN2025 21:38:26 15.7N 94.7W MB=4.7 EMSC OFFSHORE OAXACA, MEXICO
O: 16JUN2025 22:41:34 15.4N 95.0W ML=4.0 EMSC OFFSHORE OAXACA, MEXICO
P: 14JUN2025 173035 16.0N 94.0W 3.5-5.3 AAAAA Chiapas, Mexico
O: 16JUN2025 09:52:17 16.0S 70.5W MB=4.4 EMSC SOUTHERN PERU
P: 20JUN2025 173198 18.0S 71.0W 4.0-5.7 BBAAA So. Peru/Bolivia
O: 17JUN2025 04:14:55 16.1N 97.6W ML=4.0 EMSC OAXACA, MEXICO
P: 20JUN2025 173052 16.0N 98.0W 3.5-5.4 BAAAA Oaxaca, Mexico
O: 16JUN2025 14:36:51 18.9N 65.0W MD=3.2 EMSC VIRGIN ISLANDS REGION
O: 16JUN2025 14:40:09 19.0N 65.0W MD=3.2 EMSC VIRGIN ISLANDS REGION
O: 16JUN2025 15:04:52 19.0N 65.0W MD=3.2 EMSC VIRGIN ISLANDS REGION
O: 16JUN2025 15:56:07 19.0N 65.0W MD=3.1 EMSC VIRGIN ISLANDS REGION
O: 16JUN2025 15:57:40 19.0N 65.0W MD=3.1 EMSC VIRGIN ISLANDS REGION
P: 15JUN2025 173056 20.0N 65.0W 3.0-4.5 AAAAA Bahamas/No. Caribbean
P: 16JUN2025 173053 19.0N 66.0W 3.4-4.9 AAAAA Puerto Rico
O: 16JUN2025 08:24:13 20.0N 100.8W ML=3.9 EMSC GUANAJUATO, MEXICO
P: 16JUN2025 173048 19.0N 102.0W 3.5-5.7 AABAA Michoacan, Mexico
O: 16JUN2025 07:25:26 20.3S 67.9E MB=4.9 EMSC MID-INDIAN RIDGE
P: 16JUN2025 173196 20.0S 69.0E 4.0-5.4 AAAAA So. Indian Ocean
O: 16JUN2025 09:12:50 20.7N 95.1W ML=4.3 EMSC BAY OF CAMPECHE
P: 17JUN2025 173035 17.0N 94.0W 3.5-5.3 ACAAA Chiapas, Mexico
O: 16JUN2025 23:47:40 20.8S 69.7W ML=3.8 EMSC TARAPACA, CHILE
P: 16JUN2025 173207 21.0S 69.0W 4.0-5.7 AAAAA Coast No. Chile
P: 17JUN2025 173215 20.0S 69.0W 4.0-5.7 AAAAA So. Peru/Bolivia
O: 16JUN2025 08:19:25 22.6S 67.8W MB=4.4 EMSC POTOSI, BOLIVIA
P: 15JUN2025 173204 22.0S 68.0W 4.0-5.8 AAAAA Argentina
O: 16JUN2025 09:07:24 22.9S 66.1W MB=4.6 EMSC JUJUY, ARGENTINA
O: 17JUN2025 03:06:47 24.0S 66.8W mb=4.4 EMSC JUJUY, ARGENTINA
O: 16JUN2025 22:05:30 24.4S 67.2W ML=3.6 EMSC SALTA, ARGENTINA
P: 15JUN2025 173204 22.0S 68.0W 4.0-5.8 AABAA Argentina
P: 17JUN2025 173203 23.0S 64.0W 4.0-5.6 AABAA Argentina
O: 17JUN2025 02:24:35 25.2S 179.7E MB=4.4 EMSC SOUTH OF FIJI ISLANDS
P: 15JUN2025 173218 23.0S 173.0E 4.0-5.4 ACCAA Tonga/Fiji
O: 17JUN2025 06:21:33 26.8N 139.5E MB=4.3 EMSC BONIN ISLANDS, JAPAN REGION
P: 14JUN2025 173057 29.0N 139.0E 4.0-5.4 BCAAA Bonin Islands
O: 16JUN2025 07:33:01 28.1N 112.3W ML=3.4 EMSC GULF OF CALIFORNIA
P: 11JUN2025 173058 28.0N 112.0W 3.5-4.9 BAAAA Gulf of California
O: 16JUN2025 20:29:32 30.7N 114.1W ML=3.9 EMSC GULF OF CALIFORNIA
P: 16JUN2025 173099 30.2N 114.1W 2.0-4.1 AAAAA SW U.S.A
O: 16JUN2025 08:29:31 31.4N 115.5W ML=3.2 EMSC BAJA CALIFORNIA, MEXICO
P: 18JUN2025 173102 32.4N 115.8W 2.5-4.6 AAAAA So. California
O: 16JUN2025 18:04:34 31.6N 104.0W ML=2.1 EMSC WESTERN TEXAS
O: 16JUN2025 18:11:51 31.6N 104.0W ML=2.0 EMSC WESTERN TEXAS
O: 16JUN2025 19:19:41 31.6N 104.0W ML=2.9 EMSC WESTERN TEXAS
O: 16JUN2025 19:54:24 31.6N 104.0W ML=2.4 EMSC WESTERN TEXAS
O: 16JUN2025 20:08:39 31.6N 104.0W ML=2.0 EMSC WESTERN TEXAS
O: 17JUN2025 06:49:09 31.6N 104.4W ML=2.5 EMSC WESTERN TEXAS
O: 16JUN2025 07:27:32 31.7N 104.4W ML=2.0 EMSC WESTERN TEXAS
O: 16JUN2025 18:21:07 31.7N 104.4W ML=2.8 EMSC WESTERN TEXAS
O: 17JUN2025 05:25:42 31.7N 104.1W ML=2.0 EMSC WESTERN TEXAS
O: 17JUN2025 07:36:12 31.7N 104.2W ML=2.0 EMSC WESTERN TEXAS
O: 16JUN2025 09:23:13 32.0N 103.8W ML=3.0 EMSC WESTERN TEXAS
O: 16JUN2025 09:26:18 32.0N 103.4W ML=2.0 EMSC WESTERN TEXAS
O: 16JUN2025 19:24:59 32.0N 103.3W ML=2.6 EMSC WESTERN TEXAS
P: 17JUN2025 173100 31.2N 104.1W 2.0-4.1 AAAAA SW U.S.A
O: 17JUN2025 05:36:11 32.7N 115.9W ML=2.0 EMSC SOUTHERN CALIFORNIA
P: 16JUN2025 173104 32.8N 116.0W 2.5-4.8 AAAAA So. California
O: 16JUN2025 15:19:14 33.7N 89.2E MB=4.5 EMSC WESTERN XIZANG
P: 18JUN2025 173124 33.0N 92.0E 3.8-5.2 AABAA Xizang
O: 17JUN2025 02:07:22 34.5N 140.2E ML=4.1 EMSC NEAR EAST COAST OF HONSHU,
P: 15JUN2025 173095 34.0N 142.0E 4.0-5.4 AABAA Off East Coast Honshu
O: 16JUN2025 09:20:35 34.7N 62.0E ML=4.2 EMSC WESTERN AFGHANISTAN
P: 18JUN2025 173070 33.0N 60.0E 3.8-5.6 ABBAA Afghanistan
O: 16JUN2025 22:21:08 35.1N 96.0W ML=2.0 EMSC OKLAHOMA
P: 14JUN2025 173116 35.0N 96.0W 2.0-4.0 AAAAA Southern Plains
O: 17JUN2025 03:38:19 36.2N 118.3W ML=2.1 EMSC CENTRAL CALIFORNIA
P: 18JUN2025 173071 36.1N 118.1W 2.5-4.7 AAAAA California/Nevada area
O: 16JUN2025 10:34:13 36.5N 70.4E MB=4.4 EMSC HINDU KUSH REGION, AFGHANISTAN
P: 16JUN2025 173084 37.0N 70.0E 3.8-5.2 AAAAA Hindu Kush/Pakistan
O: 16JUN2025 18:56:41 37.7S 75.0W ML=4.0 EMSC OFF COAST OF BIO-BIO, CHILE
P: 16JUN2025 173221 38.0S 74.0W 4.0-5.8 AAAAA Central Chile
O: 16JUN2025 17:57:26 39.8N 23.5E ML=4.2 EMSC AEGEAN SEA
P: 17JUN2025 173069 39.0N 24.0E 3.0-4.8 AAAAA Aegean Sea
O: 16JUN2025 20:55:59 40.4N 125.0W MD=2.5 EMSC OFFSHORE NORTHERN CALIFORNIA
O: 17JUN2025 00:22:09 40.3N 124.6W MD=2.2 EMSC OFFSHORE NORTHERN CALIFORNIA
P: 15JUN2025 173148 40.5N 125.8W 2.5-4.4 AAAAA Off Coast of No. Calif
P: 17JUN2025 173147 40.3N 124.7W 2.5-4.4 AAAAA Off Coast of No. Calif
O: 16JUN2025 09:31:27 44.3N 115.0W ML=2.3 EMSC SOUTHERN IDAHO
P: 17JUN2025 173139 44.4N 115.1W 2.0-4.1 AAAAA Montana/Idaho
O: 16JUN2025 23:45:34 44.8N 149.7E MB=4.2 EMSC KURIL ISLANDS
P: 19JUN2025 173133 43.0N 148.0E 3.5-5.6 BBBAA Hokkaido, Japan
O: 17JUN2025 02:57:12 45.3S 167.5E ML=4.0 EMSC SOUTH ISLAND OF NEW ZEALAND
P: 16JUN2025 173232 45.0S 168.0E 3.0-5.1 BAAAA So. Island, N.Z.
O: 16JUN2025 21:32:44 46.5N 122.4W ML=2.5 EMSC WASHINGTON
P: 20JUN2025 173159 46.9N 122.0W 2.0-4.1 BAAAA Washington state, U.S.
O: 16JUN2025 12:34:54 49.9S 113.5W MB=4.9 EMSC SOUTHERN EAST PACIFIC RISE
P: 18JUN2025 173235 51.0S 114.0W 4.0-5.4 AAAAA East Pacific Rise
O: 16JUN2025 16:03:18 50.5N 130.3W ML=4.0 EMSC VANCOUVER ISLAND, CANADA REGIO
P: 16JUN2025 173166 50.6N 130.5W 3.0-4.9 AAAAA British Colombia
O: 16JUN2025 15:19:52 54.9N 161.0W ML=3.7 EMSC ALASKA PENINSULA
P: 11JUN2025 173177 54.5N 161.8W 3.5-5.1 AAAAA Unimak Islands, Aleutians
O: 17JUN2025 05:59:15 67.6N 161.7W ML=3.3 EMSC NORTHERN ALASKA
O: 16JUN2025 21:44:38 71.7N 1.9W ML=4.1 EMSC JAN MAYEN ISLAND REGION
P: 18JUN2025 173189 72.0N 0.0E 3.0-4.8 AAAAA Norway
June 17, 2025
Notable earthquakes and events:
Tropical Storm Dalila (01W) continued today in the area south of Baja California with winds up to to 50 kts. It is expected to track to the west but not to affect regional seismicity at this time. The Antipode at 19S 69E in the South Indian Ocean has been active with similary Storms in the past week and could see additional enhanced seismicity at this time. An earthquake of M 4.9 hit within about 100 km of this Indian Ocean epicenter mid-day on June 16 and was probably promoted by energy from TS Dalila.
The earthquake in the South Indian Ocean occurred within minutes of local solar noon and was
probably also promoted by tidal and/or geomagnetic stresses which maximize near this hour.
TROPICAL STORM DALILA (04E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DALILA 2025-06-16 15:00 UT 19.0N 111.0E 050 kts South of Baja California
O: 16JUN2025 07:25:26 20.2S 67.8E ML=4.9 EMSC MID-INDIAN RIDGE
June 16, 2025
Notable earthquakes and events:
An area which may see enhanced seismicity at this time is in Northern Chile
in the area of Tarapaca and Antofagasta, Chile and northern Argentina. This is located at the antipode of Tropical
Storm Wutip in the region of southern China at this time. This summary has
noted this potential for TS Wutip antipodal triggering in this and previous
issues as:
"TS WUTIP 2025-06-14 00:00 UT 20.3N 109.1E 080 kts Vietnam
Tropical Storm Wutip (01W) continued west of the Philippines with winds up to 80 kts. This storm is currently located at 18N 109E. Regional seismic enhancement is possible in the area of Southeast Asia but the antipode at 20S 71W in southern Peru and northern Chile (Tarapaca) could see a triggered moderate quake at this time." (June 13-14, 2025)
Current position of Wutip (JTWC)
TS WUTIP 2025-06-15 15:00 UT 24.3N 112.9E 060 kts Southern China
EMSC reported an M 5.2 in Argentina occurred on June 15, 2025 at 24.4S 66.9W
within about 25 km of exactly antipodal to the position of the eye of Wutip today. The
exact antipode is 24.3S 67.1W. The last earthquake of M>=5.2 within about 200
km of this epicenter was an M 5.6 on April 18, 2025 and prior to that an M 5.2
on December 5, 2025. Today's event occurred within about an hour of local solar
noon and was probably promoted by tidal stresses with the full moon of June 11.
It is also likely that the earthquake in Argentina was promoted by an M9.0
solar flare which began about the same time as this sub-solar earthquake, a
prime time for such interaction. SWPC data for this and other strong solar
flares today follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
An hour earlier an M 5.6 (EMSC) to 6.1 (LIM) occurred near the coast of Central Peru. NEIC reported intensity IV in Chilca (Minor damage) V in Lima Peru at Lima, San Luis, Santa Maria with IV in Caleta de Carquin, Celendin, Cajamarca and Iicolas de Pierola, Arequipa with lesser shaking in Mala, Huaraz, Ancash, Ica and Oxapampa, Pasco Peru.
EMSC reported it was strongly felt in Peru at Carmen De La Leguna Reynoso, San Isidro, Jesus Maria, Santiago de Surco, Independencia, San Francisco De Borja, La Molina and Pisco, Peru.
Landslides were reported along the Costa Verde in Lima, Peru with video on the web. Like the event in Argentina this event occurred within minutes of local solar noon and was likely
promoted by effects from TS Wutip and tidal stresses. The last earthquake
within abou 200 km of this epicenter with M>=5.6 was an M 5.7 on November 5, 2024
but the last of significantly larger magnitude was an M 6.0 on February 2, 2009.
A great earthquake of M 8.0 hit the area south of this on August 15, 2007.
The earthquake in Central Peru followed four minutes after an M 4.6 in Java, Indonesia
at 16:31 UT. This is near local solar midnight and tidal stresses probably
helped trigger this event. This is the strongest in a swarm of events in
Java which have been occurring since an M 6.2 in Colombia three days ago
near the antipode of these events, and possibly a trigger for them.
NEIC reported an earthquake of M 3.5 off the coast of Oregon was felt with intensity up to II-III in the area(s) of off the coast of Oregon in Everett, Washington and Phoenix, Oregon.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M 3.9 in Tarapaca, Chile was felt with intensity up to IV in the area(s) of Tarapaca, Chile at Iquique.
EMSC reported an earthquake of M 4.0 in Antofagasta, Chile was felt with intensity up to IV in the area(s) of Antofagasta, Chile at Antofagasta.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL STORM WUTIP (01W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS WUTIP 2025-06-16 00:00 UT 24.3N 114.1E 050 kts Southern China
Tropical Storm Wutip (01W) continued west of the Philippines with winds up to 80 kts. This storm is currently located at 18N 109E. Regional seismic enhancement is possible in the area of Southeast Asia but the antipode at 20S 71W in southern Peru and northern Chile (Tarapaca) could see a triggered moderate quake at this time.
TROPICAL STORM DALILA (04E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DALILA 2025-06-16 00:00 UT 18.2N 108.0E 050 kts West of Michoacan, Mexico
Tropical Storm Dalila (01W) continued today in the area west of Michoacan, Mexico with winds up to to 50 kts. It is expected to track to the west but not to affect regional seismicity at this time. The Antipode at 18S 72E in the South Indian Ocean has been active with similary Storms in the past week and could see additional enhanced seismicity at this time.
A tropical cyclone may be forming south of San Salvador. This system is currently at 10N 89W with winds up to 28 kts. Neither local nor antipodal seismicity is expected to be affected at this time with this storm.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
750 0258 0331 0412 C7.5 (June 15, 2025) 2.6E-02
South Sandwich IS. M 5.3 03:18 UT
Sumbawa M 4.1 03:35 UT
770 0417 0435 0445 C6.5 (June 15, 2025) 1.0E-02
Fiji M 4.5 04:19 UT
780 0611 0619 0623 C2.9 (June 15, 2025) 2.1E-03
Myanmar M 4.1 06:28 UT
790 0742 0756 0802 M2.2 (June 15, 2025) 1.4E-02
Oaxaca M 3.5 07:49 07:48 UT
San Francisco Cali. M 2.8 07:42 UT
860 1032 1047 1053 M1.9 (June 15, 2025) 1.2E-02
Sichuan, China M 4.8 10:37 UT
900 1205 1211 1214 C3.0 (June 15, 2025) 1.5E-03
910 1248 1255 1259 C2.9 (June 15, 2025) 1.9E-03
1040 1306 1316 1324 C5.0 (June 15, 2025) 4.1E-03
Antofagasta M 4.3 13:30 UT
1000 1410 1417 1426 C3.1 (June 15, 2025) 3.0E-03
1050 1715 1719 1721 C4.7 (June 15, 2025) 2.4E-03
Tajikistan M 3.4 17:20 UT
1090 1730 1807 1825 M8.4 (June 15, 2025) 1.2E-01*
Argentina M 5.2 17:31 UT
1120 1923 1931 1935 C7.9 (June 15, 2025) 5.4E-03
1130 1939 1950 2003 C9.8 (June 15, 2025) 1.4E-02
Sumatra M 4.5 19:44 UT
1140 2032 2038 2044 C7.9 (June 15, 2025) 5.7E-03
New Guinea M 4.3 20:57 UT
1180 2343 2357 0005 M1.2 (June 15, 2025) 1.2E-02
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms June 16 active June 17 quiet June 18. Solar M-flare chance: 75% X-class: 30% proton storm: 65%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 10 23 10 12:00 6 141 161
June 15, 2025
Notable earthquakes and events:
An area which may see enhanced seismicity at this time is in Northern Chile
in the area of Tarapaca and Antofagasta, Chile and northern Argentina. This is located at the antipode of Tropical
Storm Wutip in the region of southern China at this time. This summary has
noted this potential for TS Wutip antipodal triggering in this and previous
issues as:
"TS WUTIP 2025-06-14 00:00 UT 20.3N 109.1E 080 kts Vietnam
Tropical Storm Wutip (01W) continued west of the Philippines with winds up to 80 kts. This storm is currently located at 18N 109E. Regional seismic enhancement is possible in the area of Southeast Asia but the antipode at 20S 71W in southern Peru and northern Chile (Tarapaca) could see a triggered moderate quake at this time." (June 13-14, 2025)
Current position of Wutip (JTWC)
TS WUTIP 2025-06-15 15:00 UT 24.3N 112.9E 060 kts Southern China
EMSC reported an M 5.2 in Argentina occurred on June 15, 2025 at 24.4S 66.9W
within about 25 km of exactly antipodal to the position of the eye of Wutip today. The
exact antipode is 24.3S 67.1W. The last earthquake of M>=5.2 within about 200
km of this epicenter was an M 5.6 on April 18, 2025 and prior to that an M 5.2
on December 5, 2025. Today's event occurred within about an hour of local solar
noon and was probably promoted by tidal stresses with the full moon of June 11.
It is also likely that the earthquake in Argentina was promoted by an M9.0
solar flare which began about the same time as this sub-solar earthquake, a
prime time for such interaction. SWPC data for this and other strong solar
flares today follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 2240 2330 2340 M8.0 (June 14, 2025) 1.1E-02*
XXXX 0745 0800 0820 M2.0 (June 15, 2025) 4.8E-03*
XXXX 1030 1050 1100 M2.0 (June 15, 2025) 4.5E-03*
XXXX 1730 1810 1850 M9.0 (June 15, 2025) 1.3E-02*
An hour earlier an M 5.6 (EMSC) to 6.1 (LIM) occurred near the coast of Central Peru. NEIC reported intensity V in Lima Peru at Lima, San Luis, Santa Maria with IV in Caleta de Carquin, Celendin, Cajamarca and Iicolas de Pierola, Arequipa with lesser shaking in Mala, Huaraz, Ancash, Ica and Oxapampa, Pasco Peru.
Like the event in Argentina this event occurred within minutes of local solar noon and was likely
promoted by effects from TS Wutip and tidal stresses. News reports indicate
the earthquake occurred during Sunday morning mass and caused evacuations of
worshippers. Minor damage was reported. The last earthquake
within abou 200 km of this epicenter with M>=5.6 was an M 5.7 on November 5, 2024
but the last of significantly larger magnitude was an M 6.0 on February 2, 2009.
A great earthquake of M 8.0 hit the area south of this on August 15, 2007.
The earthquake in Central Peru followed four minutes after an M 4.6 (EMSC) to M 4.9 (GFZ, MET) in Java, Indonesia
at 16:31 UT. This is near local solar midnight and tidal stresses probably
helped trigger this event. This is the strongest in a swarm of events in
Java which have been occurring since an M 6.2 in Colombia three days ago
near the antipode of these events, and possibly a trigger for them.
An M 4.8 also occurred in southern China near the location of TS Wutip. It was not reported felt in the epicentral area near Bowangshan, China.
Like several other earthquakes today this appears to have been promoted by
SFE from an M2.0 solar flare. It occurred at 10:37 UT while a strong solar flare
began minutes before and reached maximum near the time of the Chinese earthquake.
Data for this flare from SWPC follow:
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 1030 1050 1100 M2.0 (June 15, 2025) 4.5E-03*
The strongest earthquake in the U.S. or Canada today was an M 4.7 in northern Alaska. NEIC reported it was felt with intensity III in Anchorage, Kenai, Seward, Fairbanks and II in Talkeetna, Alaska.
EMSC reported building swayed in Fairbanks, Alaska.
Another near local solar midnight earthquake hit the San Francisco, California area today. This event within about 15 minutes of local solar midnight was widely felt in northern San Francisco in the areas of Clayton, Concord, Oakley, Davis with intensity III and II in Antiock, Brentwood, Martinez, Pittsburg, Vallejo, Santa Rosa and Sonoma.
Midnight earthquakes in this region are often associated with strong solar flares
and are promoted by tidal stresses. In the current case, it appears to have been
promoted by an M2.0 solar flare which began at the same time of the California
earthquake. Data from SWPC for this flare follow:
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
XXXX 0742 0800 0820 M2.0 (June 15, 2025) 4.8E-03*
NEIC reported an earthquake of M 5.0 in Honshu, Japan was felt with intensity up to II-III in the area(s) of Honshu, Japan in Miyagi Prefecture at Yamoto with IV and III in Sendai.
EMSC reported slight shaking in Fukushima, Japan.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
EMSC reported an earthquake of M 4.2 in Eastern Turkey was felt with intensity up to IV in the area(s) of Eastern Turkey at Hani, Bingol, Ergani, Kayapinar, Bismil, Erkoklu, Mazidagi, Mardin, Midyat and in Syria at Al Qamishli.
EMSC reported an earthquake of M 4.2 in Ecuador was felt with intensity up to IV in the area(s) of Ecuador in Manta.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL STORM WUTIP (01W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS WUTIP 2025-06-15 00:00 UT 24.3N 113.1E 070 kts Southern Chile
Tropical Storm Wutip (01W) continued west of the Philippines with winds up to 80 kts. This storm is currently located at 18N 109E. Regional seismic enhancement is possible in the area of Southeast Asia but the antipode at 20S 71W in southern Peru and northern Chile (Tarapaca) could see a triggered moderate quake at this time.
TROPICAL STORM DALILA (04E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DALILA 2025-06-15 00:00 UT 16.9N 105.7E 045 kts South of Michoacan, Mexico
Tropical Storm Dalila (01W) continued today in the area south of Michoacan, Mexico with winds up to to 45 kts. It is expected to track to the west but not to affect regional seismicity at this time. The Antipode at 16S 71E in the South Indian Ocean has been active with similary Storms in the past week and could see additional enhanced seismicity at this time.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
380 0033 0039 0043 C1.5 (June 14, 2025) 9.7E-04
390 0103 0107 0115 C1.9 (June 14, 2025) 1.3E-03
410 0229 0243 0252 C5.0 (June 14, 2025) 4.5E-03
660 0303 0307 0315 C2.8 (June 14, 2025) 2.2E-03
So. East Pacific Rise M 5.7 03:11 UT
Ecuador M 4.6 03:31 UT
440 0525 0530 0541 C2.3 (June 14, 2025) 2.2E-03
Arkansas M 2.2 05:27 UT
Chiapas M 4.3 05:31 UT
450 0545 0552 0556 C2.5 (June 14, 2025) 1.7E-03
470 0847 0854 0905 C3.3 (June 14, 2025) 3.2E-03
Southern Texas M 2.5 08:44 UT
Gulf of California M 3.6, 3.4 08:45 UT
520 1151 1158 1204 C2.4 (June 14, 2025) 1.8E-03
540 1321 1328 1330 C2.7 (June 14, 2025) 1.4E-03
Coast of Pakistan M 4.6 13:24 UT
Ecuador M 4.3 13:36 UT
570 1434 1502 1532 C4.9 (June 14, 2025) 1.5E-02
Chiapas M 4.2 14:46 UT
Northern Alaska M 4.2 14:32 UT
620 1704 1712 1721 C3.4 (June 14, 2025) 3.0E-03
630 1752 1804 1813 M1.0 (June 14, 2025) 7.6E-03
Tonga M 5.1 18:21 UT
670 1846 1904 1916 C4.3 (June 14, 2025) 6.3E-03
New Guinea M 3.4 19:15 UT
Ceram Sea M 4.3 19:12 UT
NE Iran M 3.6 18:47 UT
So. East Pacific Rise M 5.0 19:16 UT
690 2112 2137 2152 C8.3 (June 14, 2025) 1.4E-02
Haiti M 3.4 21:44 UT
700 2240 2301 2340 M6.8 (June 14, 2025) 4.4E-02*
Sicily, Italy M 2.9, 2.2 22:53 UT
Guerrero M 3.8 22:36 UT
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: minor storms June 15-16 active June 17. Solar M-flare chance: 70% X-class: 25% proton storm: 50%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 24 27 21 03:00 5 136 151
June 13, 2025
Notable earthquakes and events:
NEIC reported an earthquake of M 4.5 in Tokyo, Japan was felt with intensity up to II-III in the area(s) of Tokyo, Japan with IVV in Saitama, III in Kanagawa, II in Chiba, and Tokyo.
EMSC reported an earthquake of M 4.4 in Tokyo, Japan was felt with intensity up to IV in the area(s) of Tokyo, Japan in Tokyo and Urayasu, Chiba.
NEIC reported an earthquake of M 3.4 in Hawaii was felt with intensity up to II-III in the area(s) of Hawaii with IV in Volcano; III in Hilo, Holualoa, Honokaa, Mountain View, Naalehu, Pahoa, Pepeekeo and II in Hawaii National Park, Kailua Jona, Kamuela, Paauilo and Honolulu.
NEIC reported an earthquake of M 3.7 in New Mexico was felt with intensity up to II-III in the area(s) of New Mexico in Artesia and Carlsbad and in El Paso, Texas.
NEIC reported an earthquake of M 4.4 in Mindanao, Philippines was felt with intensity up to II-III in the area(s) of Mindanao, Philippines at Jetafe, Central Visayas.
A foreshock of M 4.9 was felt in Katangawan, Southern Mindanao.
NEIC reported an earthquake of M 2.7 in Washington State was felt with intensity up to II-III in the area(s) of Washington State with IV in Morton, Glenoma, III in Richland; II in Seattle, Randle.
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
NEIC reported an earthquake of M in was felt with intensity up to II-III in the area(s) of
BMG reported an earthquake of M 5.1 in the Banda Sea (6S 130E) was felt with intensity up to I in the area(s) of Tanimbar at Wuar, Labobat, Kormomolin, Nirumas, Molu Maru.
BMG reported an earthquake of M 5.2 in the Banda Sea (3S 130E) was felt with intensity up to IV in the area(s) of Seram at Bula; III in Maluku at Telutih, Seram at Wernama, Tutuk, Tolu, Siwalat, Kilmury, Kian Darat and Teluk Waru.
GeoNet reported an earthquake of M 4,5 in the Rotorua area of North Islands, New Zealand was felt with the following parameters today:
O: 12JUN2025 07:37:40 38.1S 176.1E ML=4.5 GEONET 66 people reported feeling this earthquake with 56 at weak intensity and 9 with light shaking and 1 with moderate intensity 0 with strong, 0 with severe and 0 with extreme intensity.
EMSC reported an earthquake of M 4.0 in Valparaiso, Chile was felt with intensity up to IV in the area(s) of Valparaiso, Chile at Vina del Mar, Quilpue, Quillota and Limache.
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
EMSC reported an earthquake of M in was felt with intensity up to IV in the area(s) of
TROPICAL STORM WUTIP (01W)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS WUTIP 2025-06-13 00:00 UT 19.3N 109.1E 075 kts Vietnam
Tropical Storm Wutip (01W) continued west of the Philippines with winds up to 75 kts. This storm is currently located at 18N 109E. Regional seismic enhancement is possible in the area of Southeast Asia but the antipode at 20S 71W in southern Peru and northern Chile (Tarapaca) could see a triggered moderate quake at this time.
TROPICAL STORM DALILA (04E)
---- ------- ---------- -------- ----- ------ ------- ---------------
TS DALILA 2025-06-13 00:00 UT 14.7N 102.3E 040 kts South of Michoacan, Mexico
Tropical Storm Dalila (01W) continued today in the area south of Michoacan, Mexico with winds up to to 40 kts. It is expected to track to the west but not to affect regional seismicity at this time. The Antipode at 15S 77E in the South Indian Ocean has been active with similary Storms in the past week and could see additional enhanced seismicity at this time.
SOLAR FLARES
Flare # START MAX END CLASS DATE Flux (Jm-2)
-------------------------------------------------------------------------
9940 0141 0201 0218 C2.9 (June 12, 2025) 5.7E-03
Fiji M 4.4 01:42 UT
Dominican Rep. M 3.5 01:47 UT
10 1041 1058 1104 C2.8 (June 12, 2025) 3.9E-03
20 1104 1113 1117 C2.8 (June 12, 2025) 2.5E-03
30 1244 1247 1250 C1.6 (June 12, 2025) 6.8E-04
60 1739 1748 1751 C5.8 (June 12, 2025) 2.1E-03
100 2325 2346 0047 C3.9 (June 12, 2025) 1.6E-02
* indicates analog reading from graph provided by SWPC
GEOMAGNETIC FIELD: Active June 13 Major storms June 14 minor storms June 15. Solar M-flare chance: 35% X-class: 5% proton storm: 5%
AP Indicies (global, high, mid-latitude, time of max AP, Max AP, Sunspot Number, Radio Flux) 33 44 24 12:00 6 116 142
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