Earthquakes on December 16, 2025
334
EARTHQUAKES on December 16, 2025
24-hour UTC period · USGS data
10 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
35
M3.0–3.9
14
M2.0–2.9
168
M1.0–1.9
111
Activity Summary
334
Total earthquakes
~250
Daily average
Elevated
Activity level
6
M5.0+ events
Significant Earthquakes (M4.5+)
5.2
213 km SE of Kirakira, Solomon Islands
09:18 UTC · 10.0 km deep
5.1
160 km SE of Kuril’sk, Russia
23:34 UTC · 35.0 km deep
5.1
southern Mid-Atlantic Ridge
13:44 UTC · 10.0 km deep
5.1
133 km S of Honchō, Japan
05:38 UTC · 35.0 km deep
5.0
258 km ESE of Chiniak, Alaska
23:35 UTC · 9.7 km deep
Felt by 1
5.0
southern Mid-Atlantic Ridge
13:45 UTC · 10.0 km deep
4.9
south of the Fiji Islands
11:39 UTC · 508.7 km deep
4.8
168 km SW of Houma, Tonga
13:21 UTC · 10.0 km deep
Earthquake Map — December 16, 2025
All Earthquakes — December 16, 2025
Showing 30 of 223 (filtered from 334)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| 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. 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. 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. 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. The event was offshore. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. 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. 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 was offshore. 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. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. The event was offshore. 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. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. 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. 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 event was offshore. 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. The event was offshore. 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. 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. 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. 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 was offshore. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. 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. The event was offshore. 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. 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.