Earthquakes on October 8, 2025: 221 Worldwide, Largest M5.6

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-10-08 2025-10-08 23:59:30 UTC	4.6mb	southwest of Africa -52.366°, 14.558°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.6 event was detected southwest of Africa on October 8, 2025, with origin time 23:59 UTC. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The epicenter is at -52.366°, 14.558°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 23:54:14 UTC	4.6mb	96 km SW of Basco, Philippines 19.875°, 121.273°	25.1 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.6 earthquake 96 km SW of Basco, Philippines came in on October 8, 2025 at 23:54 UTC. This was a shallow crustal earthquake, focused at 25.1 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 19.875°N, 121.273°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 23:54:07 UTC	4.9mww	17 km WSW of Emet, Turkey 39.278°, 29.076°	14.9 km	9	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.9 earthquake 17 km WSW of Emet, Turkey with origin time 23:54 UTC on October 8, 2025. It ranks as the third largest event in the current dataset. A small number of nearby observers (9) submitted felt reports to the USGS. The event originated approximately 14.9 km below the surface, classifying it as shallow crustal. Coordinates: 39.278°, 29.076°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 23:00:06 UTC	2.4ml	71 km ENE of Tonopah, Nevada 38.364°, -116.504°	0.0 km	-	-	-	✓ Reviewed	USGS →
At 23:00 UTC on October 8, 2025, a magnitude 2.4 tremor occurred 71 km ENE of Tonopah, Nevada. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 1 hours earlier. At a depth of just 0.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Geolocation places the event at 38.364°N, -116.504°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 22:59:27 UTC	2.0ml	78 km NE of Tonopah, Nevada 38.465°, -116.483°	8.5 km	-	-	-	✓ Reviewed	USGS →
On October 8, 2025, worldwide seismic activity registered a magnitude 2.0 earthquake 78 km NE of Tonopah, Nevada at 22:59 UTC. Coming 1 hours after a magnitude 3.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This was a shallow crustal earthquake, focused at 8.5 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 38.465°, -116.483°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 22:53:47 UTC	3.3ml	79 km ENE of Tonopah, Nevada 38.465°, -116.470°	7.7 km	-	II	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 3.3 earthquake 79 km ENE of Tonopah, Nevada at 22:53 UTC on October 8, 2025. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. Maximum shaking intensity peaked at MMI 3.0 (weak). At a depth of 7.7 km, the event was shallow crustal. The epicenter is at 38.465°, -116.470°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 22:43:33 UTC	2.2ml	2 km NNE of Lake Arrowhead, CA 34.268°, -117.184°	3.7 km	-	-	-	✓ Reviewed	USGS →
At 22:43 UTC on October 8, 2025, a magnitude 2.2 tremor occurred 2 km NNE of Lake Arrowhead, CA. At a depth of just 3.7 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 34.268°, -117.184°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 22:20:35 UTC	2.2ml	49 km NW of Toyah, Texas 31.601°, -104.189°	6.1 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.2 earthquake was recorded 49 km NW of Toyah, Texas on October 8, 2025 at 22:20 UTC. Coming 3 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This was a shallow crustal earthquake, focused at 6.1 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 31.601°, -104.189°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 22:07:03 UTC	2.1ml	11 km S of Princeton, Canada 49.359°, -120.494°	-0.4 km	-	-	-	✓ Reviewed	USGS →
October 8, 2025 brought a magnitude 2.1 earthquake 11 km S of Princeton, Canada, logged at 22:07 UTC. At a depth of just -0.4 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 49.359°N, -120.494°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 21:25:24 UTC	2.7ml	58 km ENE of Yakutat, Alaska 59.768°, -138.783°	2.9 km	-	-	-	Auto	USGS →
On October 8, 2025 at 21:25 UTC, a magnitude 2.7 earthquake struck 58 km ENE of Yakutat, Alaska. Coming 1 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of just 2.9 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 59.768°, -138.783°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 20:45:12 UTC	4.4mb	217 km S of Severo-Kuril’sk, Russia 48.720°, 156.092°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.4 event was detected 217 km S of Severo-Kuril’sk, Russia on October 8, 2025, with origin time 20:45 UTC. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 48.720°N, 156.092°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 20:43:10 UTC	2.2ml	58 km W of Happy Valley, Alaska 60.038°, -152.760°	107.8 km	-	-	-	Auto	USGS →
Seismographs logged a magnitude 2.2 earthquake 58 km W of Happy Valley, Alaska with origin time 20:43 UTC on October 8, 2025. The hypocenter lay at 107.8 km, placing this in the intermediate depth category. The offshore location combined with this depth is characteristic of seismicity along descending slabs. The epicenter is at 60.038°, -152.760°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 20:20:41 UTC	2.5ml	15 km WNW of Happy Valley, Alaska 60.020°, -151.966°	84.1 km	-	-	-	Auto	USGS →
Reports of a magnitude 2.5 earthquake 15 km WNW of Happy Valley, Alaska came in on October 8, 2025 at 20:20 UTC. At a depth of 84.1 km, the event was intermediate depth. The epicenter is at 60.020°, -151.966°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 20:11:39 UTC	3.1ml	57 km ENE of Yakutat, Alaska 59.801°, -138.832°	0.0 km	-	-	-	Auto	USGS →
A magnitude 3.1 seismic event took place 57 km ENE of Yakutat, Alaska on October 8, 2025 at 20:11 UTC. At a depth of just 0.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. The epicenter is at 59.801°, -138.832°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 19:59:18 UTC	2.5md	7 km NW of Pinnacles, CA 36.572°, -121.202°	5.4 km	-	-	-	Auto	USGS →
A magnitude 2.5 earthquake was recorded 7 km NW of Pinnacles, CA on October 8, 2025 at 19:59 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 10 hours earlier. At a depth of 5.4 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 36.572°N, -121.202°E. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 19:38:50 UTC	4.4mwr	100 km SW of Atka, Alaska 51.572°, -175.253°	35.0 km	-	II	-	✓ Reviewed	USGS →
Reports of a magnitude 4.4 earthquake 100 km SW of Atka, Alaska came in on October 8, 2025 at 19:38 UTC. Peak ground motion corresponded to MMI 2.4, classified as weak shaking. At a depth of 35.0 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 51.572°, -175.253°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 19:26:41 UTC	4.6mb	100 km E of Petropavlovsk-Kamchatsky, Russia 53.105°, 160.133°	58.8 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.6 seismic event took place 100 km E of Petropavlovsk-Kamchatsky, Russia on October 8, 2025 at 19:26 UTC. The hypocenter lay at 58.8 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 53.105°, 160.133°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 18:51:46 UTC	2.4ml	49 km NW of Toyah, Texas 31.603°, -104.193°	6.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.4 earthquake 49 km NW of Toyah, Texas at 18:51 UTC on October 8, 2025. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. At a depth of 6.0 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 31.603°, -104.193°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 18:39:38 UTC	4.9mb	39 km SE of Petropavlovsk-Kamchatsky, Russia 52.852°, 159.101°	77.1 km	-	-	-	✓ Reviewed	USGS →
On October 8, 2025, worldwide seismic activity registered a magnitude 4.9 earthquake 39 km SE of Petropavlovsk-Kamchatsky, Russia at 18:39 UTC. It ranks as the fourth largest event in the current dataset. This was a intermediate depth earthquake, focused at 77.1 km depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. The epicenter is at 52.852°, 159.101°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 18:27:24 UTC	4.4mb	42 km W of Santa Cruz de los Taques, Venezuela 11.893°, -70.636°	76.1 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.4 seismic event took place 42 km W of Santa Cruz de los Taques, Venezuela on October 8, 2025 at 18:27 UTC. The event originated approximately 76.1 km below the surface, classifying it as intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. The epicenter is at 11.893°, -70.636°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 18:07:03 UTC	2.0ml	5 km SE of Christine, Texas 28.756°, -98.461°	8.3 km	-	-	-	✓ Reviewed	USGS →
At 18:07 UTC on October 8, 2025, a magnitude 2.0 tremor occurred 5 km SE of Christine, Texas. The hypocenter lay at 8.3 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 28.756°, -98.461°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 17:49:05 UTC	4.5mb	southeast of the Loyalty Islands -23.320°, 171.450°	10.0 km	-	-	-	✓ Reviewed	USGS →
On October 8, 2025, worldwide seismic activity registered a magnitude 4.5 earthquake southeast of the Loyalty Islands at 17:49 UTC. At a depth of 10.0 km, the event was shallow crustal. Geolocation places the event at -23.320°N, 171.450°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 17:23:53 UTC	3.4ml	6 km NNE of Puako, Hawaii 20.028°, -155.811°	23.3 km	148	-	-	✓ Reviewed	USGS →
On October 8, 2025, worldwide seismic activity registered a magnitude 3.4 earthquake 6 km NNE of Puako, Hawaii at 17:23 UTC. Of every earthquake currently listed for worldwide seismic activity, this one generated the most felt reports from the public. The USGS received 148 felt reports from nearby residents — a notable response for an event of this magnitude. This was a shallow crustal earthquake, focused at 23.3 km depth. Geolocation places the event at 20.028°N, -155.811°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 17:22:48 UTC	4.2mb	69 km W of San Antonio de los Cobres, Argentina -24.249°, -67.007°	168.8 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.2 earthquake 69 km W of San Antonio de los Cobres, Argentina with origin time 17:22 UTC on October 8, 2025. The hypocenter lay at 168.8 km, placing this in the intermediate depth category. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: -24.249°, -67.007°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 16:49:42 UTC	4.3mb	15 km SW of Lae, Papua New Guinea -6.826°, 146.904°	103.4 km	-	-	-	✓ Reviewed	USGS →
At 16:49 UTC on October 8, 2025, a magnitude 4.3 tremor occurred 15 km SW of Lae, Papua New Guinea. The hypocenter lay at 103.4 km, placing this in the intermediate depth category. The offshore location combined with this depth is characteristic of seismicity along descending slabs. The epicenter is at -6.826°, 146.904°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 16:38:26 UTC	2.6ml	61 km SW of Skwentna, Alaska 61.685°, -152.369°	1.6 km	-	-	-	Auto	USGS →
At 16:38 UTC on October 8, 2025, a magnitude 2.6 tremor occurred 61 km SW of Skwentna, Alaska. At a depth of just 1.6 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 61.685°, -152.369°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 16:23:00 UTC	2.4md	7 km SE of Markleeville, CA 38.643°, -119.742°	-2.0 km	2	-	-	Auto	USGS →
Reports of a magnitude 2.4 earthquake 7 km SE of Markleeville, CA came in on October 8, 2025 at 16:23 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.7 earthquake that occurred about 7 hours earlier. At a depth of just -2.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. A small number of nearby observers (2) submitted felt reports to the USGS. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 38.643°N, -119.742°E. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 16:07:40 UTC	2.0ml	113 km ESE of McCarthy, Alaska 60.972°, -141.031°	0.0 km	-	-	-	Auto	USGS →
The USGS recorded this magnitude 2.0 earthquake 113 km ESE of McCarthy, Alaska at 16:07 UTC on October 8, 2025. At a depth of just 0.0 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Geolocation places the event at 60.972°N, -141.031°E. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 15:59:04 UTC	4.3mb	132 km ENE of Petropavlovsk-Kamchatsky, Russia 53.326°, 160.569°	54.3 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.3 earthquake 132 km ENE of Petropavlovsk-Kamchatsky, Russia at 15:59 UTC on October 8, 2025. At a depth of 54.3 km, the event was shallow crustal. Geolocation places the event at 53.326°N, 160.569°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-10-08 2025-10-08 15:30:23 UTC	2.4md	10 km WSW of Manton, CA 40.388°, -121.977°	6.3 km	-	-	-	Auto	USGS →
On October 8, 2025, worldwide seismic activity registered a magnitude 2.4 earthquake 10 km WSW of Manton, CA at 15:30 UTC. This was a shallow crustal earthquake, focused at 6.3 km depth. The epicenter is at 40.388°, -121.977°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.

Legend:

Mag: Magnitude ({magType} = ml, mb, mw, etc.)

Felt: Number of DYFI felt reports

MMI: Modified Mercalli Intensity (I-X+)

Alert: PAGER alert level

Depth: Shallow (<70km), Intermediate, Deep (>300km)

Status: Auto = preliminary, Reviewed = verified by seismologist

Click any row to see additional technical details.

About This Page

This page shows all earthquakes recorded by the USGS Earthquake Hazards Program during the 24-hour UTC period on October 8, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.

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