Earthquakes on December 21, 2025
335
EARTHQUAKES on December 21, 2025
24-hour UTC period · USGS data
9 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
13
M4.0–4.9
42
M3.0–3.9
8
M2.0–2.9
106
M1.0–1.9
166
Activity Summary
335
Total earthquakes
~250
Daily average
Elevated
Activity level
13
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Northern Mariana Islands
2
South Sandwich Islands
2
Significant Earthquakes (M4.5+)
5.6
139 km E of Barcelona, Philippines
17:53 UTC · 9.0 km deep
5.5
132 km WNW of Ternate, Indonesia
12:21 UTC · 44.0 km deep
Felt by 1
5.4
57 km ENE of Misawa, Japan
01:29 UTC · 57.2 km deep
Felt by 4
5.3
141 km SSW of Kokopo, Papua New Guinea
23:07 UTC · 48.6 km deep
5.2
142 km SSW of Kokopo, Papua New Guinea
05:25 UTC · 33.4 km deep
5.2
114 km ESE of Shikotan, Russia
03:47 UTC · 10.0 km deep
5.1
140 km SE of Hasaki, Japan
06:58 UTC · 10.0 km deep
5.1
203 km SW of Tual, Indonesia
04:02 UTC · 44.8 km deep
Earthquake Map — December 21, 2025
All Earthquakes — December 21, 2025
Showing 30 of 169 (filtered from 335)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2025-12-21 2025-12-21 23:48:32 UTC | 2.0ml | 113 km N of Yakutat, Alaska 60.563°, -139.870° | 19.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 113 km N of Yakutat, Alaska on December 21, 2025, with origin time 23:48 UTC. It arrived roughly 2 hours after a larger magnitude 4.1 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. | ||||||||
2025-12-21 2025-12-21 23:38:38 UTC | 2.1ml | 56 km S of Whites City, New Mexico 31.664°, -104.341° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
On December 21, 2025 at 23:38 UTC, a magnitude 2.1 earthquake struck 56 km S of Whites City, New Mexico. This event falls inside the aftershock decay of a nearby magnitude 2.9 earthquake that occurred about 10 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 23:35:10 UTC | 2.0ml | 95 km N of Yakutat, Alaska 60.393°, -139.501° | 0.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 95 km N of Yakutat, Alaska came in on December 21, 2025 at 23:35 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.8 earthquake that occurred about 20 hours earlier. 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. | ||||||||
2025-12-21 2025-12-21 23:33:04 UTC | 4.4mb | 10 km S of Iwaizumi, Japan 39.752°, 141.818° | 67.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 10 km S of Iwaizumi, Japan on December 21, 2025 at 23:33 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 23:11:58 UTC | 4.5mb | 153 km SSW of Kokopo, Papua New Guinea -5.646°, 151.783° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:11 UTC on December 21, 2025, a magnitude 4.5 tremor occurred 153 km SSW of Kokopo, Papua New Guinea. It arrived roughly 1 hours after a larger magnitude 5.3 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 23:07:31 UTC | 5.3mww | 141 km SSW of Kokopo, Papua New Guinea -5.518°, 151.758° | 48.6 km | - | - | - | ✓ Reviewed | USGS → |
On December 21, 2025, worldwide seismic activity registered a magnitude 5.3 earthquake 141 km SSW of Kokopo, Papua New Guinea at 23:07 UTC. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 23:03:32 UTC | 2.6md | 5 km SW of Ridgemark, CA 36.783°, -121.409° | 6.9 km | 1 | - | - | Auto | USGS → |
On December 21, 2025, worldwide seismic activity registered a magnitude 2.6 earthquake 5 km SW of Ridgemark, CA at 23:03 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.3 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 23:02:33 UTC | 2.3ml | 8 km S of Ojai, CA 34.377°, -119.246° | 7.4 km | 2 | - | - | ✓ Reviewed | USGS → |
On December 21, 2025, worldwide seismic activity registered a magnitude 2.3 earthquake 8 km S of Ojai, CA at 23:02 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:36:09 UTC | 2.4md | 4 km SE of San Ramon, CA 37.750°, -121.946° | 8.7 km | 1 | - | - | Auto | USGS → |
Seismographs logged a magnitude 2.4 earthquake 4 km SE of San Ramon, CA with origin time 22:36 UTC on December 21, 2025. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 20 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:26:59 UTC | 4.7mb | 273 km N of Saipan, Northern Mariana Islands 17.659°, 146.146° | 153.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.7 earthquake was recorded 273 km N of Saipan, Northern Mariana Islands on December 21, 2025 at 22:26 UTC. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:26:54 UTC | 2.6md | 10 km WSW of Stratford, CA 36.157°, -119.926° | 14.7 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.6 earthquake 10 km WSW of Stratford, CA at 22:26 UTC on December 21, 2025. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:25:37 UTC | 4.8mb | South Sandwich Islands region -55.353°, -27.400° | 15.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.8 earthquake in the South Sandwich Islands region came in on December 21, 2025 at 22:25 UTC. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:22:45 UTC | 2.0ml | 36 km WSW of Manley Hot Springs, Alaska 64.875°, -151.356° | 8.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 36 km WSW of Manley Hot Springs, Alaska on December 21, 2025 at 22:22 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:15:02 UTC | 2.1ml | 119 km NNW of Yakutat, Alaska 60.600°, -140.163° | 14.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 119 km NNW of Yakutat, Alaska on December 21, 2025 at 22:15 UTC. Coming 18 hours after a magnitude 4.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:14:30 UTC | 2.6ml | 24 km SSW of Westbrook, Texas 32.143°, -101.075° | 8.7 km | - | - | - | ✓ Reviewed | USGS → |
At 22:14 UTC on December 21, 2025, a magnitude 2.6 tremor occurred 24 km SSW of Westbrook, Texas. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:13:38 UTC | 2.1ml | 101 km N of Yakutat, Alaska 60.447°, -139.492° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 101 km N of Yakutat, Alaska with origin time 22:13 UTC on December 21, 2025. It arrived roughly 1 hours after a larger magnitude 4.1 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 22:05:39 UTC | 2.1md | 5 km SW of Ridgemark, CA 36.778°, -121.410° | 6.3 km | - | - | - | Auto | USGS → |
December 21, 2025 brought a magnitude 2.1 earthquake 5 km SW of Ridgemark, CA, logged at 22:05 UTC. It arrived roughly 1 hours after a larger magnitude 3.3 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. | ||||||||
2025-12-21 2025-12-21 21:56:21 UTC | 2.1ml | 109 km N of Yakutat, Alaska 60.531°, -139.775° | 13.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 21, 2025, worldwide seismic activity registered a magnitude 2.1 earthquake 109 km N of Yakutat, Alaska at 21:56 UTC. This event falls inside the aftershock decay of a nearby magnitude 4.1 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 21:45:08 UTC | 2.0ml | 101 km N of Yakutat, Alaska 60.452°, -139.589° | 11.9 km | - | - | - | ✓ Reviewed | USGS → |
December 21, 2025 brought a magnitude 2.0 earthquake 101 km N of Yakutat, Alaska, logged at 21:45 UTC. It arrived roughly 1 hours after a larger magnitude 4.1 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. | ||||||||
2025-12-21 2025-12-21 21:45:03 UTC | 4.5mb | south of Africa -53.533°, 24.905° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.5 earthquake south of Africa at 21:45 UTC on December 21, 2025. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 21:40:40 UTC | 4.5mb | 157 km E of Yigo Village, Guam 13.381°, 146.336° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.5 event was detected 157 km E of Yigo Village, Guam on December 21, 2025, with origin time 21:40 UTC. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 21:36:08 UTC | 2.0md | 4 km NW of Lynn, Arkansas 36.037°, -91.284° | 6.8 km | - | - | - | ✓ Reviewed | USGS → |
At 21:36 UTC on December 21, 2025, a magnitude 2.0 tremor occurred 4 km NW of Lynn, Arkansas. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 21:29:51 UTC | 2.1ml | 108 km N of Yakutat, Alaska 60.523°, -139.834° | 11.2 km | - | - | - | ✓ Reviewed | USGS → |
At 21:29 UTC on December 21, 2025, a magnitude 2.1 tremor occurred 108 km N of Yakutat, Alaska. Coming 1 hours after a magnitude 4.1 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. | ||||||||
2025-12-21 2025-12-21 21:26:13 UTC | 4.1mb | 111 km N of Yakutat, Alaska 60.550°, -139.685° | 5.0 km | - | IV | green | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 111 km N of Yakutat, Alaska on December 21, 2025 at 21:26 UTC. In the 72 hours after this event, the USGS recorded 7 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 21:16:45 UTC | 4.2mwr | 116 km WNW of Aykol, China 41.300°, 78.823° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 21, 2025, worldwide seismic activity registered a magnitude 4.2 earthquake 116 km WNW of Aykol, China at 21:16 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 20:41:12 UTC | 2.9ml | 114 km N of Yakutat, Alaska 60.563°, -139.974° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 21, 2025, worldwide seismic activity registered a magnitude 2.9 earthquake 114 km N of Yakutat, Alaska at 20:41 UTC. It arrived roughly 17 hours after a larger magnitude 4.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 20:40:49 UTC | 3.3ml | 4 km WSW of Ridgemark, CA 36.790°, -121.408° | 7.0 km | 40 | III | - | ✓ Reviewed | USGS → |
December 21, 2025 brought a magnitude 3.3 earthquake 4 km WSW of Ridgemark, CA, logged at 20:40 UTC. In the 72 hours after this event, the USGS recorded 6 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 20:27:56 UTC | 3.2ml | 14 km ENE of Wright, Wyoming 43.821°, -105.341° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.2 earthquake was recorded 14 km ENE of Wright, Wyoming on December 21, 2025 at 20:27 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 19:57:27 UTC | 2.0ml | 109 km N of Yakutat, Alaska 60.525°, -139.911° | 11.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 21, 2025 at 19:57 UTC, a magnitude 2.0 earthquake struck 109 km N of Yakutat, Alaska. This event falls inside the aftershock decay of a nearby magnitude 4.1 earthquake that occurred about 16 hours earlier. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2025-12-21 2025-12-21 19:56:19 UTC | 2.0ml | 110 km N of Yakutat, Alaska 60.539°, -139.854° | 10.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 earthquake was recorded 110 km N of Yakutat, Alaska on December 21, 2025 at 19:56 UTC. Coming 16 hours after a magnitude 4.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.0 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 21, 2025. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.