Earthquakes on December 17, 2025: 357 Worldwide, Largest M5.6

Time ↓	Mag ↕	Location ↕	Depth ↕	Felt ↕	MMI	Alert	Status	Details
2025-12-17 2025-12-17 23:56:32 UTC	2.8ml	30 km ESE of Alamo, Nevada 37.310°, -114.832°	0.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.8 earthquake 30 km ESE of Alamo, Nevada came in on December 17, 2025 at 23:56 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 37.310°, -114.832°. 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.
2025-12-17 2025-12-17 23:56:05 UTC	3.5ml	112 km NNW of Yakutat, Alaska 60.526°, -140.184°	5.0 km	-	III	-	✓ Reviewed	USGS →
On December 17, 2025 at 23:56 UTC, a magnitude 3.5 earthquake struck 112 km NNW of Yakutat, Alaska. On the Modified Mercalli scale, shaking reached 3.8 — considered light. The hypocenter lay at 5.0 km, placing this in the shallow crustal category. Geolocation places the event at 60.526°N, -140.184°E. The solution has been reviewed by a USGS seismologist and is considered finalized. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2025-12-17 2025-12-17 23:47:12 UTC	2.1ml	114 km N of Yakutat, Alaska 60.563°, -140.084°	8.5 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.1 earthquake 114 km N of Yakutat, Alaska with origin time 23:47 UTC on December 17, 2025. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 21 hours earlier. The event originated approximately 8.5 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 60.563°N, -140.084°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.
2025-12-17 2025-12-17 23:44:52 UTC	2.0ml	112 km N of Yakutat, Alaska 60.549°, -139.894°	5.0 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.0 event was detected 112 km N of Yakutat, Alaska on December 17, 2025, with origin time 23:44 UTC. Coming 21 hours after a magnitude 2.9 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: 60.549°, -139.894°. 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.
2025-12-17 2025-12-17 23:27:04 UTC	2.0ml	104 km N of Yakutat, Alaska 60.486°, -139.808°	2.1 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 2.0 earthquake 104 km N of Yakutat, Alaska came in on December 17, 2025 at 23:27 UTC. It arrived roughly 11 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. At a depth of just 2.1 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. The epicenter is at 60.486°, -139.808°. 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.
2025-12-17 2025-12-17 23:22:36 UTC	2.1ml	54 km WSW of Cantwell, Alaska 63.168°, -149.927°	82.4 km	-	-	-	✓ Reviewed	USGS →
On December 17, 2025, worldwide seismic activity registered a magnitude 2.1 earthquake 54 km WSW of Cantwell, Alaska at 23:22 UTC. This was a intermediate depth earthquake, focused at 82.4 km depth. Coordinates: 63.168°, -149.927°. 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.
2025-12-17 2025-12-17 23:20:56 UTC	2.0ml	121 km N of Yakutat, Alaska 60.626°, -140.042°	1.7 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.0 seismic event took place 121 km N of Yakutat, Alaska on December 17, 2025 at 23:20 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 21 hours earlier. At a depth of just 1.7 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. Geolocation places the event at 60.626°N, -140.042°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.
2025-12-17 2025-12-17 23:07:46 UTC	5.6mww	148 km SSE of Burica, Panama 6.718°, -82.596°	10.0 km	2	III	green	✓ Reviewed	USGS →
On December 17, 2025 at 23:07 UTC, a magnitude 5.6 earthquake struck 148 km SSE of Burica, Panama. 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 17, 2025. Maximum shaking intensity peaked at MMI 3.8 (light). A small number of nearby observers (2) submitted felt reports to the USGS. The hypocenter lay at 10.0 km, placing this in the shallow crustal category. The epicenter is at 6.718°, -82.596°. 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.
2025-12-17 2025-12-17 23:07:30 UTC	2.1ml	119 km N of Yakutat, Alaska 60.608°, -140.065°	5.0 km	-	-	-	✓ Reviewed	USGS →
At 23:07 UTC on December 17, 2025, a magnitude 2.1 tremor occurred 119 km N of Yakutat, Alaska. It arrived roughly 21 hours after a larger magnitude 2.9 mainshock in the same 20 km area, placing it within the typical aftershock window. 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. The epicenter is at 60.608°, -140.065°. 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.
2025-12-17 2025-12-17 22:59:14 UTC	2.2ml	109 km N of Yakutat, Alaska 60.524°, -139.858°	5.0 km	-	-	-	✓ Reviewed	USGS →
December 17, 2025 brought a magnitude 2.2 earthquake 109 km N of Yakutat, Alaska, logged at 22:59 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 11 hours earlier. 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. Geolocation places the event at 60.524°N, -139.858°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.
2025-12-17 2025-12-17 22:56:18 UTC	2.0ml	6 km ENE of Sprague, Washington 47.324°, -117.891°	-0.7 km	-	-	-	✓ Reviewed	USGS →
December 17, 2025 brought a magnitude 2.0 earthquake 6 km ENE of Sprague, Washington, logged at 22:56 UTC. At a depth of just -0.7 km, this was a very shallow event, close enough to the surface that modest magnitudes can produce significant local shaking. Coordinates: 47.324°, -117.891°. 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.
2025-12-17 2025-12-17 22:44:21 UTC	4.3mb	181 km SSE of Vilyuchinsk, Russia 51.408°, 159.335°	35.0 km	-	-	-	✓ Reviewed	USGS →
At 22:44 UTC on December 17, 2025, a magnitude 4.3 tremor occurred 181 km SSE of Vilyuchinsk, Russia. The hypocenter lay at 35.0 km, placing this in the shallow crustal category. The epicenter is at 51.408°, 159.335°. 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.
2025-12-17 2025-12-17 22:33:10 UTC	4.0mb	224 km SSE of Ambon, Indonesia -5.417°, 129.253°	258.3 km	-	-	-	✓ Reviewed	USGS →
This magnitude 4.0 event was detected 224 km SSE of Ambon, Indonesia on December 17, 2025, with origin time 22:33 UTC. The hypocenter lay at 258.3 km, placing this in the intermediate depth category. The epicenter is at -5.417°, 129.253°. 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.
2025-12-17 2025-12-17 22:30:07 UTC	5.0mww	82 km SSE of Port-Vila, Vanuatu -18.443°, 168.567°	95.8 km	5	-	-	✓ Reviewed	USGS →
At 22:30 UTC on December 17, 2025, a magnitude 5.0 tremor occurred 82 km SSE of Port-Vila, Vanuatu. It ranks as the fifth largest event in the current dataset. A small number of nearby observers (5) submitted felt reports to the USGS. The hypocenter lay at 95.8 km, placing this in the intermediate depth category. Geolocation places the event at -18.443°N, 168.567°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.
2025-12-17 2025-12-17 22:22:51 UTC	2.3ml	31 km W of Anchorage, Alaska 61.195°, -150.490°	39.9 km	-	-	-	✓ Reviewed	USGS →
At 22:22 UTC on December 17, 2025, a magnitude 2.3 tremor occurred 31 km W of Anchorage, Alaska. The hypocenter lay at 39.9 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 61.195°, -150.490°. 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.
2025-12-17 2025-12-17 22:07:46 UTC	4.4mb	9 km SE of Babino Polje, Croatia 42.683°, 17.654°	10.0 km	-	-	-	✓ Reviewed	USGS →
Reports of a magnitude 4.4 earthquake 9 km SE of Babino Polje, Croatia came in on December 17, 2025 at 22:07 UTC. At a depth of 10.0 km, the event was shallow crustal. The event was offshore — common for earthquakes along subduction zones and transform plate boundaries. Coordinates: 42.683°, 17.654°. 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.
2025-12-17 2025-12-17 21:59:09 UTC	2.2md	8 km NW of The Geysers, CA 38.829°, -122.817°	1.8 km	-	-	-	Auto	USGS →
Reports of a magnitude 2.2 earthquake 8 km NW of The Geysers, CA came in on December 17, 2025 at 21:59 UTC. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. At a depth of just 1.8 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: 38.829°, -122.817°. 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.
2025-12-17 2025-12-17 21:56:40 UTC	2.0ml	111 km N of Yakutat, Alaska 60.548°, -139.865°	5.3 km	-	-	-	✓ Reviewed	USGS →
On December 17, 2025 at 21:56 UTC, a magnitude 2.0 earthquake struck 111 km N of Yakutat, Alaska. It arrived roughly 10 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 5.3 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 60.548°, -139.865°. 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.
2025-12-17 2025-12-17 21:42:35 UTC	4.5mb	49 km SE of Porto Martins, Portugal 38.364°, -26.654°	11.5 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 4.5 earthquake 49 km SE of Porto Martins, Portugal with origin time 21:42 UTC on December 17, 2025. The hypocenter lay at 11.5 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 38.364°, -26.654°. 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.
2025-12-17 2025-12-17 21:36:28 UTC	2.6ml	171 km S of Atka, Alaska 50.657°, -173.983°	10.0 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.6 earthquake 171 km S of Atka, Alaska with origin time 21:36 UTC on December 17, 2025. 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: 50.657°, -173.983°. 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.
2025-12-17 2025-12-17 21:24:49 UTC	2.0ml	1 km SSE of Eagle River, Alaska 61.306°, -149.555°	33.6 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.0 earthquake was recorded 1 km SSE of Eagle River, Alaska on December 17, 2025 at 21:24 UTC. At a depth of 33.6 km, the event was shallow crustal. Geolocation places the event at 61.306°N, -149.555°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.
2025-12-17 2025-12-17 21:14:57 UTC	2.0ml	32 km WNW of Valdez, Alaska 61.214°, -146.934°	2.2 km	-	-	-	✓ Reviewed	USGS →
Seismographs logged a magnitude 2.0 earthquake 32 km WNW of Valdez, Alaska with origin time 21:14 UTC on December 17, 2025. 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. Coordinates: 61.214°, -146.934°. 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.
2025-12-17 2025-12-17 21:12:51 UTC	2.0ml	114 km N of Yakutat, Alaska 60.560°, -140.075°	5.0 km	-	-	-	✓ Reviewed	USGS →
On December 17, 2025, worldwide seismic activity registered a magnitude 2.0 earthquake 114 km N of Yakutat, Alaska at 21:12 UTC. It arrived roughly 19 hours after a larger magnitude 2.9 mainshock in the same 20 km area, placing it within the typical aftershock window. 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. The epicenter is at 60.560°, -140.075°. 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.
2025-12-17 2025-12-17 20:57:09 UTC	2.3ml	26 km SE of Cantwell, Alaska 63.206°, -148.629°	70.1 km	-	-	-	✓ Reviewed	USGS →
The USGS recorded this magnitude 2.3 earthquake 26 km SE of Cantwell, Alaska at 20:57 UTC on December 17, 2025. At a depth of 70.1 km, the event was intermediate depth. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Geolocation places the event at 63.206°N, -148.629°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.
2025-12-17 2025-12-17 20:38:45 UTC	2.2md	3 km WSW of Mesquite, Nevada 36.793°, -114.099°	8.6 km	-	-	-	✓ Reviewed	USGS →
This magnitude 2.2 event was detected 3 km WSW of Mesquite, Nevada on December 17, 2025, with origin time 20:38 UTC. The hypocenter lay at 8.6 km, placing this in the shallow crustal category. Geolocation places the event at 36.793°N, -114.099°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.
2025-12-17 2025-12-17 20:20:58 UTC	4.1mb	155 km S of Alo, Wallis and Futuna -15.703°, -177.938°	438.8 km	-	-	-	✓ Reviewed	USGS →
At 20:20 UTC on December 17, 2025, a magnitude 4.1 tremor occurred 155 km S of Alo, Wallis and Futuna. At 438.8 km, this deep-focus earthquake originated far below the brittle crust, deep inside the mantle. The offshore location combined with this depth is characteristic of seismicity along descending slabs. Geolocation places the event at -15.703°N, -177.938°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.
2025-12-17 2025-12-17 19:57:49 UTC	2.5ml	114 km N of Yakutat, Alaska 60.564°, -140.043°	5.0 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.5 seismic event took place 114 km N of Yakutat, Alaska on December 17, 2025 at 19:57 UTC. Coming 18 hours after a magnitude 2.9 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: 60.564°, -140.043°. 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.
2025-12-17 2025-12-17 19:40:04 UTC	2.0ml	114 km N of Yakutat, Alaska 60.566°, -140.047°	10.7 km	-	-	-	✓ Reviewed	USGS →
At 19:40 UTC on December 17, 2025, a magnitude 2.0 tremor occurred 114 km N of Yakutat, Alaska. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 17 hours earlier. The hypocenter lay at 10.7 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 60.566°N, -140.047°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.
2025-12-17 2025-12-17 19:15:45 UTC	2.2ml	122 km NNW of Yakutat, Alaska 60.613°, -140.237°	5.0 km	-	-	-	✓ Reviewed	USGS →
On December 17, 2025 at 19:15 UTC, a magnitude 2.2 earthquake struck 122 km NNW of Yakutat, Alaska. Coming 17 hours after a magnitude 2.9 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: 60.613°, -140.237°. 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.
2025-12-17 2025-12-17 19:15:24 UTC	2.2md	6 km SE of La Parguera, Puerto Rico 17.935°, -67.006°	5.8 km	-	-	-	✓ Reviewed	USGS →
A magnitude 2.2 seismic event took place 6 km SE of La Parguera, Puerto Rico on December 17, 2025 at 19:15 UTC. It arrived roughly 4 hours after a larger magnitude 2.5 mainshock in the same 20 km area, placing it within the typical aftershock window. The hypocenter lay at 5.8 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 17.935°, -67.006°. 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.

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 17, 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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