Earthquakes on December 8, 2025: 500 Worldwide, Largest M7.6

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-12-08 2025-12-08 23:59:06 UTC	5.6mb	109 km NE of Kuji, Japan 40.825°, 142.759°	47.8 km	-	III	green	✓ Reviewed	USGS →
On December 8, 2025, worldwide seismic activity registered a magnitude 5.6 earthquake 109 km NE of Kuji, Japan at 23:59 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. Maximum shaking intensity peaked at MMI 3.5 (light). It ranks as the fourth largest event in the current dataset. This was a shallow crustal earthquake, focused at 47.8 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 40.825°, 142.759°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M5.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 23:52:46 UTC	2.3ml	97 km N of Yakutat, Alaska 60.410°, -139.460°	2.5 km	-	-	-	✓ Reviewed	USGS →
On December 8, 2025 at 23:52 UTC, a magnitude 2.3 earthquake struck 97 km N of Yakutat, Alaska. Coming 13 hours after a magnitude 3.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of just 2.5 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. Coordinates: 60.410°, -139.460°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 23:47:30 UTC	2.4ml	95 km N of Yakutat, Alaska 60.385°, -139.405°	0.3 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.4 earthquake was recorded 95 km N of Yakutat, Alaska on December 8, 2025 at 23:47 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 13 hours earlier. At a depth of just 0.3 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 60.385°N, -139.405°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.
2025-12-08 2025-12-08 23:44:08 UTC	2.3md	1 km SW of Palmarejo, Puerto Rico 18.031°, -67.085°	14.7 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.3 earthquake 1 km SW of Palmarejo, Puerto Rico came in on December 8, 2025 at 23:44 UTC. This was a shallow crustal earthquake, focused at 14.7 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 18.031°, -67.085°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 23:42:02 UTC	2.5ml	114 km N of Yakutat, Alaska 60.571°, -139.834°	5.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.5 earthquake was recorded 114 km N of Yakutat, Alaska on December 8, 2025 at 23:42 UTC. It arrived roughly 6 hours after a larger magnitude 4.5 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of 5.0 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 60.571°, -139.834°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 23:38:01 UTC	2.1ml	111 km N of Yakutat, Alaska 60.534°, -140.044°	6.7 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.1 event was detected 111 km N of Yakutat, Alaska on December 8, 2025, with origin time 23:38 UTC. Coming 6 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The hypocenter lay at 6.7 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 60.534°, -140.044°. 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.
2025-12-08 2025-12-08 23:30:21 UTC	4.3mb	150 km SSE of Honchō, Japan 40.820°, 143.375°	35.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.3 earthquake 150 km SSE of Honchō, Japan came in on December 8, 2025 at 23:30 UTC. This event falls inside the aftershock decay of a nearby magnitude 5.1 earthquake that occurred about 4 hours earlier. At a depth of 35.0 km, the event was shallow crustal. Geolocation places the event at 40.820°N, 143.375°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.
2025-12-08 2025-12-08 23:28:21 UTC	2.1ml	104 km N of Yakutat, Alaska 60.480°, -139.563°	4.5 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.1 earthquake 104 km N of Yakutat, Alaska came in on December 8, 2025 at 23:28 UTC. It arrived roughly 1 hours after a larger magnitude 4.3 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of just 4.5 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 60.480°, -139.563°. 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.
2025-12-08 2025-12-08 23:18:49 UTC	2.4ml	106 km N of Yakutat, Alaska 60.499°, -139.599°	4.7 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.4 earthquake 106 km N of Yakutat, Alaska with origin time 23:18 UTC on December 8, 2025. Coming 1 hours after a magnitude 4.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of just 4.7 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. Coordinates: 60.499°, -139.599°. 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.
2025-12-08 2025-12-08 23:16:40 UTC	2.8ml	110 km NNW of Yakutat, Alaska 60.513°, -140.196°	5.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.8 seismic event took place 110 km NNW of Yakutat, Alaska on December 8, 2025 at 23:16 UTC. Coming 6 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event originated approximately 5.0 km below the surface, classifying it as shallow crustal. Coordinates: 60.513°, -140.196°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 23:13:37 UTC	2.0ml	133 km WSW of Adak, Alaska 51.479°, -178.450°	11.7 km	-	-	-	✓ Reviewed	USGS →
December 8, 2025 brought a magnitude 2.0 earthquake 133 km WSW of Adak, Alaska, logged at 23:13 UTC. This was a shallow crustal earthquake, focused at 11.7 km depth. The epicenter is at 51.479°, -178.450°. 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.
2025-12-08 2025-12-08 23:13:30 UTC	2.3ml	114 km N of Yakutat, Alaska 60.574°, -139.837°	0.9 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.3 earthquake was recorded 114 km N of Yakutat, Alaska on December 8, 2025 at 23:13 UTC. It arrived roughly 5 hours after a larger magnitude 4.5 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of just 0.9 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 60.574°, -139.837°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 23:11:27 UTC	2.3ml	99 km N of Yakutat, Alaska 60.429°, -139.489°	2.3 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.3 earthquake 99 km N of Yakutat, Alaska with origin time 23:11 UTC on December 8, 2025. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 12 hours earlier. At a depth of just 2.3 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 60.429°N, -139.489°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 23:08:34 UTC	2.4ml	110 km N of Yakutat, Alaska 60.539°, -139.900°	4.7 km	-	-	-	✓ Reviewed	USGS →
On December 8, 2025, worldwide seismic activity registered a magnitude 2.4 earthquake 110 km N of Yakutat, Alaska at 23:08 UTC. It arrived roughly 5 hours after a larger magnitude 4.5 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of just 4.7 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 60.539°, -139.900°. 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.
2025-12-08 2025-12-08 23:06:56 UTC	2.3ml	106 km N of Yakutat, Alaska 60.500°, -139.638°	3.2 km	-	-	-	✓ Reviewed	USGS →
On December 8, 2025, worldwide seismic activity registered a magnitude 2.3 earthquake 106 km N of Yakutat, Alaska at 23:06 UTC. Coming 1 hours after a magnitude 4.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of just 3.2 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. Coordinates: 60.500°, -139.638°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:58:58 UTC	3.4ml	111 km N of Yakutat, Alaska 60.533°, -140.099°	6.7 km	-	-	-	✓ Reviewed	USGS →
On December 8, 2025, worldwide seismic activity registered a magnitude 3.4 earthquake 111 km N of Yakutat, Alaska at 22:58 UTC. It arrived roughly 5 hours after a larger magnitude 4.5 mainshock in the same 20 km area, placing it within the typical aftershock window. This was a shallow crustal earthquake, focused at 6.7 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 60.533°, -140.099°. 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.
2025-12-08 2025-12-08 22:57:17 UTC	4.6mb	south of the Fiji Islands -26.690°, -176.260°	35.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.6 event was detected south of the Fiji Islands on December 8, 2025, with origin time 22:57 UTC. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. Geolocation places the event at -26.690°N, -176.260°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.
2025-12-08 2025-12-08 22:56:51 UTC	2.6ml	118 km N of Yakutat, Alaska 60.599°, -140.024°	11.5 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.6 earthquake 118 km N of Yakutat, Alaska with origin time 22:56 UTC on December 8, 2025. Coming 5 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event originated approximately 11.5 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 60.599°, -140.024°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:55:44 UTC	2.9md	2 km E of Piedmont, CA 37.823°, -122.212°	4.6 km	2,458	-	-	Auto	USGS →
This magnitude 2.9 event was detected 2 km E of Piedmont, CA on December 8, 2025, with origin time 22:55 UTC. More than 2,458 people across the region submitted felt reports to the USGS Did You Feel It? system, indicating the shaking was widely perceived. Of every earthquake currently listed for worldwide seismic activity, this one generated the most felt reports from the public. At a depth of just 4.6 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 37.823°, -122.212°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:55:06 UTC	3.0ml	109 km N of Yakutat, Alaska 60.526°, -139.678°	5.0 km	-	-	-	✓ Reviewed	USGS →
On December 8, 2025 at 22:55 UTC, a magnitude 3.0 earthquake struck 109 km N of Yakutat, Alaska. Coming 1 hours after a magnitude 4.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The hypocenter lay at 5.0 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 60.526°, -139.678°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:51:54 UTC	4.3mb	109 km N of Yakutat, Alaska 60.525°, -139.836°	4.2 km	-	IV	green	✓ Reviewed	USGS →
A magnitude 4.3 seismic event took place 109 km N of Yakutat, Alaska on December 8, 2025 at 22:51 UTC. Coming 5 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. Peak ground motion corresponded to MMI 4.7, classified as moderate shaking. At a depth of just 4.2 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. Coordinates: 60.525°, -139.836°. 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.
2025-12-08 2025-12-08 22:39:28 UTC	4.4mb	111 km E of Yokohama, Japan 41.152°, 142.576°	42.5 km	-	-	-	✓ Reviewed	USGS →
At 22:39 UTC on December 8, 2025, a magnitude 4.4 tremor occurred 111 km E of Yokohama, Japan. The hypocenter lay at 42.5 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 41.152°, 142.576°. 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.
2025-12-08 2025-12-08 22:30:31 UTC	4.4mb	119 km ENE of Kuji, Japan 40.741°, 142.984°	35.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 4.4 earthquake 119 km ENE of Kuji, Japan at 22:30 UTC on December 8, 2025. At a depth of 35.0 km, the event was shallow crustal. Geolocation places the event at 40.741°N, 142.984°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.
2025-12-08 2025-12-08 22:25:53 UTC	2.3ml	113 km N of Yakutat, Alaska 60.550°, -140.081°	8.7 km	-	-	-	✓ Reviewed	USGS →
At 22:25 UTC on December 8, 2025, a magnitude 2.3 tremor occurred 113 km N of Yakutat, Alaska. It arrived roughly 5 hours after a larger magnitude 4.5 mainshock in the same 20 km area, placing it within the typical aftershock window. The event originated approximately 8.7 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 60.550°, -140.081°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:24:30 UTC	2.7ml	120 km N of Yakutat, Alaska 60.623°, -139.942°	2.3 km	-	-	-	✓ Reviewed	USGS →
December 8, 2025 brought a magnitude 2.7 earthquake 120 km N of Yakutat, Alaska, logged at 22:24 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.5 earthquake that occurred about 5 hours earlier. At a depth of just 2.3 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 60.623°N, -139.942°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:23:27 UTC	2.5ml	113 km N of Yakutat, Alaska 60.550°, -140.045°	1.1 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.5 earthquake 113 km N of Yakutat, Alaska with origin time 22:23 UTC on December 8, 2025. This event falls inside the aftershock decay of a nearby magnitude 4.5 earthquake that occurred about 5 hours earlier. At a depth of just 1.1 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 60.550°N, -140.045°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:22:32 UTC	2.5ml	29 km WNW of Willow, Alaska 61.809°, -150.585°	54.4 km	-	-	-	✓ Reviewed	USGS →
On December 8, 2025, worldwide seismic activity registered a magnitude 2.5 earthquake 29 km WNW of Willow, Alaska at 22:22 UTC. This was a shallow crustal earthquake, focused at 54.4 km depth. Coordinates: 61.809°, -150.585°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-08 2025-12-08 22:17:33 UTC	2.4ml	103 km N of Yakutat, Alaska 60.472°, -139.590°	3.6 km	-	-	-	✓ Reviewed	USGS →
At 22:17 UTC on December 8, 2025, a magnitude 2.4 tremor occurred 103 km N of Yakutat, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 11 hours earlier. At a depth of just 3.6 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. Geolocation places the event at 60.472°N, -139.590°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.
2025-12-08 2025-12-08 22:09:55 UTC	2.2ml	118 km N of Yakutat, Alaska 60.607°, -139.961°	2.4 km	-	-	-	✓ Reviewed	USGS →
On December 8, 2025 at 22:09 UTC, a magnitude 2.2 earthquake struck 118 km N of Yakutat, Alaska. Coming 4 hours after a magnitude 4.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of just 2.4 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. Coordinates: 60.607°, -139.961°. 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.
2025-12-08 2025-12-08 22:07:18 UTC	5.0mb	112 km S of Honchō, Japan 41.117°, 143.017°	49.6 km	3	-	-	✓ Reviewed	USGS →
December 8, 2025 brought a magnitude 5.0 earthquake 112 km S of Honchō, Japan, logged at 22:07 UTC. It arrived roughly 1 hours after a larger magnitude 6.6 mainshock in the same 20 km area, placing it within the typical aftershock window. A small number of nearby observers (3) submitted felt reports to the USGS. At a depth of 49.6 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 41.117°, 143.017°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M5.0 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 December 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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