Earthquakes on December 8, 2025
500
EARTHQUAKES on December 8, 2025
24-hour UTC period · USGS data
41 km deep · 259 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
13
M4.0–4.9
40
M3.0–3.9
34
M2.0–2.9
327
M1.0–1.9
86
Activity Summary
500
Total earthquakes
~250
Daily average
Elevated
Activity level
13
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
7.6
2025 Aomori Prefecture, Japan Earthquake
14:15 UTC · 40.7 km deep
Felt by 259
6.6
129 km S of Honchō, Japan
21:52 UTC · 19.0 km deep
Felt by 4
6.0
127 km S of Honchō, Japan
18:56 UTC · 22.8 km deep
Felt by 1
5.6
109 km NE of Kuji, Japan
23:59 UTC · 47.8 km deep
5.5
South Sandwich Islands region
18:41 UTC · 30.0 km deep
5.5
93 km ENE of Hachinohe, Japan
14:33 UTC · 35.0 km deep
Felt by 4
5.2
21 km SE of Hualien City, Taiwan
11:24 UTC · 10.0 km deep
Felt by 35
5.1
138 km S of Honchō, Japan
19:01 UTC · 31.3 km deep
Earthquake Map — December 8, 2025
All Earthquakes — December 8, 2025
Showing 30 of 414 (filtered from 500)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| 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. The event was offshore. 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. 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. | ||||||||
2025-12-08 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. 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. | ||||||||
2025-12-08 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. The event was offshore. 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. The event was offshore. 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 event was offshore. 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. 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. 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. | ||||||||
2025-12-08 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. 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. | ||||||||
2025-12-08 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. 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. 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. 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. | ||||||||
2025-12-08 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. 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. | ||||||||
2025-12-08 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. 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. | ||||||||
2025-12-08 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. 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. | ||||||||
2025-12-08 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. The event was offshore. 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. 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 was offshore. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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 event was offshore. 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. 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 event was offshore. 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. 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 was offshore. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. 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. 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. 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. | ||||||||
2025-12-08 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. 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. | ||||||||
2025-12-08 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. The event was offshore. 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.