Earthquakes on December 23, 2025: 307 Worldwide, Largest M5.6

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-12-23 2025-12-23 23:33:04 UTC	2.9ml	28 km WNW of Elfin Cove, Alaska 58.288°, -136.802°	9.9 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.9 earthquake 28 km WNW of Elfin Cove, Alaska with origin time 23:33 UTC on December 23, 2025. The event originated approximately 9.9 km below the surface, classifying it as shallow crustal. The epicenter is at 58.288°, -136.802°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-23 2025-12-23 23:23:18 UTC	2.6ml	87 km SSE of Sand Point, Alaska 54.569°, -160.219°	18.4 km	-	-	-	✓ Reviewed	USGS →
At 23:23 UTC on December 23, 2025, a magnitude 2.6 tremor occurred 87 km SSE of Sand Point, Alaska. The event originated approximately 18.4 km below the surface, classifying it as shallow crustal. The epicenter is at 54.569°, -160.219°. 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.
2025-12-23 2025-12-23 23:01:01 UTC	4.0mb	Pagan region, Northern Mariana Islands 18.114°, 145.474°	297.6 km	-	-	-	✓ Reviewed	USGS →
On December 23, 2025 at 23:01 UTC, a magnitude 4.0 earthquake struck in the Pagan region, Northern Mariana Islands. The event originated approximately 297.6 km below the surface, classifying it as intermediate depth. The epicenter is at 18.114°, 145.474°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-23 2025-12-23 22:43:05 UTC	4.1mb	105 km SW of Fīrūzābād, Iran 28.295°, 51.692°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.1 event was detected 105 km SW of Fīrūzābād, Iran on December 23, 2025, with origin time 22:43 UTC. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 28.295°, 51.692°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-23 2025-12-23 22:33:40 UTC	2.4ml	26 km W of Old Harbor, Alaska 57.178°, -153.735°	7.6 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.4 event was detected 26 km W of Old Harbor, Alaska on December 23, 2025, with origin time 22:33 UTC. The event originated approximately 7.6 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 57.178°, -153.735°. 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.
2025-12-23 2025-12-23 22:28:35 UTC	2.4ml	42 km WNW of Happy Valley, Alaska 60.081°, -152.445°	97.9 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.4 earthquake 42 km WNW of Happy Valley, Alaska came in on December 23, 2025 at 22:28 UTC. This was a intermediate depth earthquake, focused at 97.9 km depth. Geolocation places the event at 60.081°N, -152.445°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.
2025-12-23 2025-12-23 22:26:59 UTC	2.1ml	88 km WSW of Adak, Alaska 51.462°, -177.720°	23.3 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.1 seismic event took place 88 km WSW of Adak, Alaska on December 23, 2025 at 22:26 UTC. Coming 11 hours after a magnitude 2.2 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event originated approximately 23.3 km below the surface, classifying it as shallow crustal. Coordinates: 51.462°, -177.720°. 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.
2025-12-23 2025-12-23 22:04:44 UTC	4.1mb	101 km WSW of Gunungsitoli, Indonesia 0.800°, 96.847°	10.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.1 earthquake 101 km WSW of Gunungsitoli, Indonesia came in on December 23, 2025 at 22:04 UTC. This was a shallow crustal earthquake, focused at 10.0 km depth. The epicenter is at 0.800°, 96.847°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-23 2025-12-23 22:00:52 UTC	2.4ml	3 km N of Point MacKenzie, Alaska 61.387°, -149.969°	23.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.4 seismic event took place 3 km N of Point MacKenzie, Alaska on December 23, 2025 at 22:00 UTC. The hypocenter lay at 23.0 km, placing this in the shallow crustal category. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 61.387°, -149.969°. 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.
2025-12-23 2025-12-23 21:54:17 UTC	2.0ml	71 km WSW of Nanwalek, Alaska 59.178°, -153.123°	78.8 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.0 event was detected 71 km WSW of Nanwalek, Alaska on December 23, 2025, with origin time 21:54 UTC. The event originated approximately 78.8 km below the surface, classifying it as intermediate depth. Geolocation places the event at 59.178°N, -153.123°E. 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.
2025-12-23 2025-12-23 21:49:39 UTC	3.1ml	15 km NNE of Maeser, Utah 40.606°, -109.529°	0.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 3.1 seismic event took place 15 km NNE of Maeser, Utah on December 23, 2025 at 21:49 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. Coordinates: 40.606°, -109.529°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-23 2025-12-23 21:45:22 UTC	2.2ml	99 km N of Yakutat, Alaska 60.427°, -139.463°	3.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.2 earthquake 99 km N of Yakutat, Alaska at 21:45 UTC on December 23, 2025. At a depth of just 3.0 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 60.427°N, -139.463°E. 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.
2025-12-23 2025-12-23 21:33:50 UTC	2.3ml	85 km SSE of Akutan, Alaska 53.413°, -165.330°	20.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.3 earthquake 85 km SSE of Akutan, Alaska came in on December 23, 2025 at 21:33 UTC. Coming 1 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. At a depth of 20.0 km, the event was shallow crustal. Coordinates: 53.413°, -165.330°. 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.
2025-12-23 2025-12-23 21:31:38 UTC	2.4ml	73 km SSE of Akutan, Alaska 53.532°, -165.320°	26.4 km	-	-	-	✓ Reviewed	USGS →
December 23, 2025 brought a magnitude 2.4 earthquake 73 km SSE of Akutan, Alaska, logged at 21:31 UTC. At a depth of 26.4 km, the event was shallow crustal. The epicenter is at 53.532°, -165.320°. 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.
2025-12-23 2025-12-23 21:31:13 UTC	2.4ml	84 km SSE of Akutan, Alaska 53.445°, -165.244°	32.6 km	-	-	-	✓ Reviewed	USGS →
On December 23, 2025 at 21:31 UTC, a magnitude 2.4 earthquake struck 84 km SSE of Akutan, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.6 earthquake that occurred about 13 hours earlier. The event originated approximately 32.6 km below the surface, classifying it as shallow crustal. Geolocation places the event at 53.445°N, -165.244°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.
2025-12-23 2025-12-23 21:11:58 UTC	2.0ml	60 km SE of Denali National Park, Alaska 63.237°, -150.711°	130.4 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.0 earthquake 60 km SE of Denali National Park, Alaska came in on December 23, 2025 at 21:11 UTC. This was a intermediate depth earthquake, focused at 130.4 km depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Coordinates: 63.237°, -150.711°. 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.
2025-12-23 2025-12-23 20:57:44 UTC	2.0ml	83 km N of Yakutat, Alaska 60.292°, -139.915°	2.5 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.0 seismic event took place 83 km N of Yakutat, Alaska on December 23, 2025 at 20:57 UTC. 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. The epicenter is at 60.292°, -139.915°. 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.
2025-12-23 2025-12-23 20:53:53 UTC	2.7ml	52 km SSW of Whites City, New Mexico 31.717°, -104.511°	6.1 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.7 seismic event took place 52 km SSW of Whites City, New Mexico on December 23, 2025 at 20:53 UTC. The hypocenter lay at 6.1 km, placing this in the shallow crustal category. The epicenter is at 31.717°, -104.511°. 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.
2025-12-23 2025-12-23 20:41:57 UTC	5.6mww	54 km N of Port-Olry, Vanuatu -14.556°, 167.138°	157.0 km	2	III	green	✓ Reviewed	USGS →
On December 23, 2025 at 20:41 UTC, a magnitude 5.6 earthquake struck 54 km N of Port-Olry, Vanuatu. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on December 23, 2025. Maximum shaking intensity peaked at MMI 3.5 (light). A small number of nearby observers (2) submitted felt reports to the USGS. The hypocenter lay at 157.0 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 -14.556°, 167.138°. 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.
2025-12-23 2025-12-23 20:32:22 UTC	4.5mb	south of the Fiji Islands -24.960°, 179.802°	520.3 km	-	-	-	✓ Reviewed	USGS →
December 23, 2025 brought a magnitude 4.5 earthquake south of the Fiji Islands, logged at 20:32 UTC. At 520.3 km, this deep-focus earthquake originated far below the brittle crust, deep inside the mantle. The epicenter is at -24.960°, 179.802°. 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.
2025-12-23 2025-12-23 20:21:37 UTC	2.6ml	115 km N of Yakutat, Alaska 60.580°, -139.681°	5.0 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.6 earthquake 115 km N of Yakutat, Alaska at 20:21 UTC on December 23, 2025. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 18 hours earlier. This was a shallow crustal earthquake, focused at 5.0 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 60.580°N, -139.681°E. 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.
2025-12-23 2025-12-23 20:04:38 UTC	2.3ml	5 km SSW of Happy Valley, Alaska 59.903°, -151.760°	76.5 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.3 seismic event took place 5 km SSW of Happy Valley, Alaska on December 23, 2025 at 20:04 UTC. The event originated approximately 76.5 km below the surface, classifying it as intermediate depth. The epicenter is at 59.903°, -151.760°. 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.
2025-12-23 2025-12-23 20:03:28 UTC	4.6mb	209 km ESE of Ozernovskiy, Russia 51.105°, 159.444°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.6 seismic event took place 209 km ESE of Ozernovskiy, Russia on December 23, 2025 at 20:03 UTC. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. Coordinates: 51.105°, 159.444°. 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.
2025-12-23 2025-12-23 20:03:20 UTC	4.4mb	195 km SSE of Lata, Solomon Islands -12.224°, 166.753°	199.0 km	-	-	-	✓ Reviewed	USGS →
On December 23, 2025, worldwide seismic activity registered a magnitude 4.4 earthquake 195 km SSE of Lata, Solomon Islands at 20:03 UTC. At a depth of 199.0 km, the event was intermediate depth. Geolocation places the event at -12.224°N, 166.753°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.
2025-12-23 2025-12-23 19:49:17 UTC	4.7mb	162 km SE of Severo-Kuril’sk, Russia 49.699°, 157.817°	10.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.7 event was detected 162 km SE of Severo-Kuril’sk, Russia on December 23, 2025, with origin time 19:49 UTC. The event originated approximately 10.0 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 49.699°, 157.817°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-23 2025-12-23 19:38:04 UTC	2.3ml	6 km N of Diamond Ridge, Alaska 59.733°, -151.549°	56.8 km	-	-	-	✓ Reviewed	USGS →
December 23, 2025 brought a magnitude 2.3 earthquake 6 km N of Diamond Ridge, Alaska, logged at 19:38 UTC. This was a shallow crustal earthquake, focused at 56.8 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 59.733°N, -151.549°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.
2025-12-23 2025-12-23 19:34:49 UTC	2.4ml	122 km WSW of Adak, Alaska 51.329°, -178.172°	11.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.4 earthquake was recorded 122 km WSW of Adak, Alaska on December 23, 2025 at 19:34 UTC. This was a shallow crustal earthquake, focused at 11.6 km depth. Coordinates: 51.329°, -178.172°. 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.
2025-12-23 2025-12-23 19:29:02 UTC	2.3ml	60 km SSE of Adak, Alaska 51.414°, -176.159°	25.9 km	-	-	-	✓ Reviewed	USGS →
On December 23, 2025 at 19:29 UTC, a magnitude 2.3 earthquake struck 60 km SSE of Adak, Alaska. The hypocenter lay at 25.9 km, placing this in the shallow crustal category. Coordinates: 51.414°, -176.159°. 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.
2025-12-23 2025-12-23 18:51:40 UTC	3.1ml	47 km SE of Adak, Alaska 51.598°, -176.115°	62.1 km	-	-	-	✓ Reviewed	USGS →
December 23, 2025 brought a magnitude 3.1 earthquake 47 km SE of Adak, Alaska, logged at 18:51 UTC. This was a shallow crustal earthquake, focused at 62.1 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 51.598°, -176.115°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-23 2025-12-23 18:34:14 UTC	2.8ml	91 km ESE of Chalkyitsik, Alaska 66.317°, -141.842°	9.8 km	-	-	-	✓ Reviewed	USGS →
At 18:34 UTC on December 23, 2025, a magnitude 2.8 tremor occurred 91 km ESE of Chalkyitsik, Alaska. The hypocenter lay at 9.8 km, placing this in the shallow crustal category. Coordinates: 66.317°, -141.842°. 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.

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 23, 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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