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                          

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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)                          

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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)                        

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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)                          

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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)                         

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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)                          

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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                        

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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)                          

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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)                          

 

----  -------  ----------  --------  -----  ------  -------  ---------------

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