Earthquakes on December 16, 2025: 334 Worldwide, Largest M5.2

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-12-16 2025-12-16 23:55:50 UTC	4.1mb	112 km WNW of Mohr, Iran 27.913°, 51.821°	10.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 4.1 earthquake was recorded 112 km WNW of Mohr, Iran on December 16, 2025 at 23:55 UTC. This was a shallow crustal earthquake, focused at 10.0 km depth. Geolocation places the event at 27.913°N, 51.821°E. 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.
2025-12-16 2025-12-16 23:43:06 UTC	2.8md	44 km WSW of Ferndale, CA 40.496°, -124.776°	24.1 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.8 earthquake 44 km WSW of Ferndale, CA with origin time 23:43 UTC on December 16, 2025. The event originated approximately 24.1 km below the surface, classifying it as shallow crustal. Coordinates: 40.496°, -124.776°. 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.
2025-12-16 2025-12-16 23:35:25 UTC	5.0mww	258 km ESE of Chiniak, Alaska 56.379°, -148.674°	9.7 km	1	I	-	✓ Reviewed	USGS →
At 23:35 UTC on December 16, 2025, a magnitude 5.0 tremor occurred 258 km ESE of Chiniak, Alaska. A tsunami evaluation was automatically initiated given the magnitude and location. On the Modified Mercalli scale, shaking reached 1.7 — considered weak. It ranks as the fifth largest event in the current dataset. A small number of nearby observers (1) submitted felt reports to the USGS. The hypocenter lay at 9.7 km, placing this in the shallow crustal category. Geolocation places the event at 56.379°N, -148.674°E. 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.
2025-12-16 2025-12-16 23:34:14 UTC	5.1mb	160 km SE of Kuril’sk, Russia 44.384°, 149.529°	35.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 5.1 earthquake was recorded 160 km SE of Kuril’sk, Russia on December 16, 2025 at 23:34 UTC. It ranks as the second largest event in the current dataset. 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. Geolocation places the event at 44.384°N, 149.529°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-16 2025-12-16 23:33:18 UTC	2.2ml	114 km N of Yakutat, Alaska 60.576°, -139.830°	3.2 km	-	-	-	✓ Reviewed	USGS →
December 16, 2025 brought a magnitude 2.2 earthquake 114 km N of Yakutat, Alaska, logged at 23:33 UTC. It arrived roughly 19 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. 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. The epicenter is at 60.576°, -139.830°. 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.
2025-12-16 2025-12-16 23:26:35 UTC	2.6ml	67 km SSW of Adak, Alaska 51.313°, -177.012°	35.0 km	-	-	-	✓ Reviewed	USGS →
On December 16, 2025 at 23:26 UTC, a magnitude 2.6 earthquake struck 67 km SSW of Adak, Alaska. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 1 hours earlier. The event originated approximately 35.0 km below the surface, classifying it as shallow crustal. Geolocation places the event at 51.313°N, -177.012°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.
2025-12-16 2025-12-16 23:25:37 UTC	2.5ml	46 km SSE of Nelchina, Alaska 61.608°, -146.401°	8.7 km	-	-	-	✓ Reviewed	USGS →
On December 16, 2025 at 23:25 UTC, a magnitude 2.5 earthquake struck 46 km SSE of Nelchina, Alaska. The hypocenter lay at 8.7 km, placing this in the shallow crustal category. Coordinates: 61.608°, -146.401°. 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.
2025-12-16 2025-12-16 23:17:36 UTC	2.1ml	117 km N of Yakutat, Alaska 60.596°, -139.935°	6.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.1 earthquake 117 km N of Yakutat, Alaska with origin time 23:17 UTC on December 16, 2025. It arrived roughly 19 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event originated approximately 6.0 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 60.596°, -139.935°. 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.
2025-12-16 2025-12-16 23:17:15 UTC	2.9ml	61 km SSW of Adak, Alaska 51.357°, -176.953°	35.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.9 earthquake 61 km SSW of Adak, Alaska came in on December 16, 2025 at 23:17 UTC. At a depth of 35.0 km, the event was shallow crustal. The epicenter is at 51.357°, -176.953°. 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.
2025-12-16 2025-12-16 23:15:46 UTC	2.1ml	11 km SSE of Princeton, Canada 49.364°, -120.461°	-0.5 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.1 earthquake was recorded 11 km SSE of Princeton, Canada on December 16, 2025 at 23:15 UTC. At a depth of just -0.5 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 49.364°, -120.461°. 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.
2025-12-16 2025-12-16 23:15:29 UTC	2.0ml	108 km N of Yakutat, Alaska 60.519°, -139.904°	1.4 km	-	-	-	✓ Reviewed	USGS →
On December 16, 2025 at 23:15 UTC, a magnitude 2.0 earthquake struck 108 km N of Yakutat, Alaska. Coming 19 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 1.4 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: 60.519°, -139.904°. 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.
2025-12-16 2025-12-16 23:12:34 UTC	2.0ml	115 km N of Yakutat, Alaska 60.576°, -139.953°	6.4 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.0 earthquake was recorded 115 km N of Yakutat, Alaska on December 16, 2025 at 23:12 UTC. It arrived roughly 19 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of 6.4 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. The epicenter is at 60.576°, -139.953°. 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.
2025-12-16 2025-12-16 23:03:51 UTC	3.9mb	Pagan region, Northern Mariana Islands 18.873°, 145.352°	372.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 3.9 earthquake was recorded in the Pagan region, Northern Mariana Islands on December 16, 2025 at 23:03 UTC. At 372.7 km, this deep-focus earthquake originated far below the brittle crust, deep inside the mantle. Coordinates: 18.873°, 145.352°. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-16 2025-12-16 23:02:05 UTC	2.6ml	101 km N of Yakutat, Alaska 60.449°, -139.482°	1.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.6 earthquake was recorded 101 km N of Yakutat, Alaska on December 16, 2025 at 23:02 UTC. Coming 1 hours after a magnitude 2.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. 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. Coordinates: 60.449°, -139.482°. 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.
2025-12-16 2025-12-16 22:48:49 UTC	2.1ml	106 km N of Yakutat, Alaska 60.494°, -139.967°	2.2 km	-	-	-	✓ Reviewed	USGS →
On December 16, 2025, worldwide seismic activity registered a magnitude 2.1 earthquake 106 km N of Yakutat, Alaska at 22:48 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 19 hours earlier. At a depth of just 2.2 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. Geolocation places the event at 60.494°N, -139.967°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.
2025-12-16 2025-12-16 22:29:41 UTC	4.4mb	93 km WNW of Tobelo, Indonesia 2.058°, 127.238°	88.1 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.4 earthquake 93 km WNW of Tobelo, Indonesia came in on December 16, 2025 at 22:29 UTC. At a depth of 88.1 km, the event was intermediate depth. Coordinates: 2.058°, 127.238°. 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.
2025-12-16 2025-12-16 22:28:38 UTC	4.3mb	62 km ENE of Hachinohe, Japan 40.797°, 142.127°	58.9 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.3 earthquake 62 km ENE of Hachinohe, Japan with origin time 22:28 UTC on December 16, 2025. The event originated approximately 58.9 km below the surface, classifying it as shallow crustal. Geolocation places the event at 40.797°N, 142.127°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.
2025-12-16 2025-12-16 22:23:27 UTC	2.3ml	108 km N of Yakutat, Alaska 60.517°, -139.829°	7.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.3 seismic event took place 108 km N of Yakutat, Alaska on December 16, 2025 at 22:23 UTC. It arrived roughly 18 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 7.6 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 60.517°, -139.829°. 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.
2025-12-16 2025-12-16 22:19:46 UTC	2.3ml	102 km N of Yakutat, Alaska 60.464°, -139.657°	7.5 km	-	-	-	✓ Reviewed	USGS →
December 16, 2025 brought a magnitude 2.3 earthquake 102 km N of Yakutat, Alaska, logged at 22:19 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 18 hours earlier. At a depth of 7.5 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 60.464°N, -139.657°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.
2025-12-16 2025-12-16 22:11:23 UTC	4.0mb	159 km SSW of Al Hufūf, Saudi Arabia 23.993°, 49.109°	10.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.0 earthquake 159 km SSW of Al Hufūf, Saudi Arabia came in on December 16, 2025 at 22:11 UTC. At a depth of 10.0 km, the event was shallow crustal. Geolocation places the event at 23.993°N, 49.109°E. 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.
2025-12-16 2025-12-16 22:11:22 UTC	2.9ml	95 km N of Yakutat, Alaska 60.402°, -139.695°	5.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.9 seismic event took place 95 km N of Yakutat, Alaska on December 16, 2025 at 22:11 UTC. In the 72 hours after this event, the USGS recorded 5 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. The event originated approximately 5.0 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 60.402°N, -139.695°E. 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.
2025-12-16 2025-12-16 22:01:16 UTC	2.6ml	23 km WSW of Point MacKenzie, Alaska 61.251°, -150.353°	38.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.6 earthquake 23 km WSW of Point MacKenzie, Alaska with origin time 22:01 UTC on December 16, 2025. The hypocenter lay at 38.2 km, placing this in the shallow crustal category. The epicenter is at 61.251°, -150.353°. 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.
2025-12-16 2025-12-16 21:55:10 UTC	2.2ml	100 km N of Yakutat, Alaska 60.452°, -139.788°	6.1 km	-	-	-	✓ Reviewed	USGS →
On December 16, 2025 at 21:55 UTC, a magnitude 2.2 earthquake struck 100 km N of Yakutat, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 18 hours earlier. The event originated approximately 6.1 km below the surface, classifying it as shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Geolocation places the event at 60.452°N, -139.788°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.
2025-12-16 2025-12-16 21:45:22 UTC	2.3md	6 km NW of The Geysers, CA 38.819°, -122.793°	2.7 km	-	-	-	Auto	USGS →
A magnitude 2.3 seismic event took place 6 km NW of The Geysers, CA on December 16, 2025 at 21:45 UTC. At a depth of just 2.7 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: 38.819°, -122.793°. The automatic solution is preliminary and may be refined as additional station data arrives. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-16 2025-12-16 21:41:48 UTC	2.4ml	114 km N of Yakutat, Alaska 60.569°, -140.012°	1.5 km	-	-	-	✓ Reviewed	USGS →
On December 16, 2025 at 21:41 UTC, a magnitude 2.4 earthquake struck 114 km N of Yakutat, Alaska. It arrived roughly 17 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of just 1.5 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 60.569°, -140.012°. 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.
2025-12-16 2025-12-16 21:38:31 UTC	3.4ml	149 km SSW of Channel Islands Beach, California 32.941°, -119.911°	10.0 km	2	II	-	✓ Reviewed	USGS →
This magnitude 3.4 event was detected 149 km SSW of Channel Islands Beach, California on December 16, 2025, with origin time 21:38 UTC. On the Modified Mercalli scale, shaking reached 2.4 — considered weak. A small number of nearby observers (2) submitted felt reports to the USGS. The event originated approximately 10.0 km below the surface, classifying it as shallow crustal. Geolocation places the event at 32.941°N, -119.911°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.
2025-12-16 2025-12-16 21:36:44 UTC	2.1ml	108 km N of Yakutat, Alaska 60.516°, -139.812°	1.9 km	-	-	-	✓ Reviewed	USGS →
At 21:36 UTC on December 16, 2025, a magnitude 2.1 tremor occurred 108 km N of Yakutat, Alaska. Coming 17 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 1.9 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. Coordinates: 60.516°, -139.812°. 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.
2025-12-16 2025-12-16 21:32:35 UTC	4.2mb	150 km NNE of Aksu, China 42.360°, 81.184°	10.0 km	-	-	-	✓ Reviewed	USGS →
On December 16, 2025, worldwide seismic activity registered a magnitude 4.2 earthquake 150 km NNE of Aksu, China at 21:32 UTC. This was a shallow crustal earthquake, focused at 10.0 km depth. Coordinates: 42.360°, 81.184°. 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.
2025-12-16 2025-12-16 21:26:35 UTC	2.2ml	112 km N of Yakutat, Alaska 60.546°, -139.987°	9.8 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.2 earthquake was recorded 112 km N of Yakutat, Alaska on December 16, 2025 at 21:26 UTC. Coming 17 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. This was a shallow crustal earthquake, focused at 9.8 km depth. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 60.546°, -139.987°. 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.
2025-12-16 2025-12-16 21:14:52 UTC	2.1ml	56 km WSW of Unalaska, Alaska 53.617°, -167.269°	78.3 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.1 earthquake 56 km WSW of Unalaska, Alaska at 21:14 UTC on December 16, 2025. At a depth of 78.3 km, the event was intermediate depth. The epicenter is at 53.617°, -167.269°. 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.

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 16, 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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