Earthquakes on December 1, 2023
325
EARTHQUAKES on December 1, 2023
24-hour UTC period · USGS data
10 km deep · 1 person felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
34
M3.0–3.9
21
M2.0–2.9
42
M1.0–1.9
223
Activity Summary
325
Total earthquakes
~250
Daily average
Elevated
Activity level
5
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.2
74 km SSW of Laojunmiao, China
14:55 UTC · 10.0 km deep
Felt by 1
5.1
54 km NNE of Petersville, Alaska
05:50 UTC · 101.7 km deep
Felt by 679
5.0
80 km NE of Masohi, Indonesia
17:58 UTC · 19.4 km deep
5.0
13 km W of Zhefang, China
17:36 UTC · 10.0 km deep
Felt by 4
5.0
60 km SSE of Camiña, Chile
08:45 UTC · 118.2 km deep
Felt by 5
4.8
11 km E of Ocotillo, CA
07:43 UTC · 8.7 km deep
Felt by 1,085
4.7
81 km NE of Masohi, Indonesia
18:50 UTC · 10.6 km deep
4.7
63 km SSE of Onagawa Chō, Japan
03:52 UTC · 52.1 km deep
Earthquake Map — December 1, 2023
All Earthquakes — December 1, 2023
Showing 30 of 102 (filtered from 325)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-12-01 2023-12-01 23:35:48 UTC | 4.4mb | Maug Islands region, Northern Mariana Islands 20.153°, 145.240° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake in the Maug Islands region, Northern Mariana Islands with origin time 23:35 UTC on December 1, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 23:12:42 UTC | 3.4ml | 61 km S of Whites City, New Mexico 31.624°, -104.399° | 8.3 km | - | - | - | ✓ Reviewed | USGS → |
On December 1, 2023 at 23:12 UTC, a magnitude 3.4 earthquake struck 61 km S of Whites City, New Mexico. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 23:10:35 UTC | 4.0mb | 49 km W of Gunungsitoli, Indonesia 1.275°, 97.171° | 29.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.0 earthquake 49 km W of Gunungsitoli, Indonesia came in on December 1, 2023 at 23:10 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 23:02:47 UTC | 3.8md | 176 km NNE of Cruz Bay, U.S. Virgin Islands 19.866°, -64.329° | 52.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 1, 2023, worldwide seismic activity registered a magnitude 3.8 earthquake 176 km NNE of Cruz Bay, U.S. Virgin Islands at 23:02 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.9 earthquake that occurred about 14 hours earlier. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 22:54:00 UTC | 2.1ml | 40 km W of Aleneva, Alaska 58.132°, -153.590° | 56.4 km | - | - | - | ✓ Reviewed | USGS → |
At 22:54 UTC on December 1, 2023, a magnitude 2.1 tremor occurred 40 km W of Aleneva, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 22:50:44 UTC | 2.3ml | 14 km WSW of Dutch Harbor, Alaska 53.848°, -166.757° | 108.7 km | - | - | - | ✓ Reviewed | USGS → |
At 22:50 UTC on December 1, 2023, a magnitude 2.3 tremor occurred 14 km WSW of Dutch Harbor, Alaska. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 22:45:42 UTC | 4.4mb | south of the Kermadec Islands -33.616°, -179.201° | 35.8 km | - | - | - | ✓ Reviewed | USGS → |
On December 1, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake south of the Kermadec Islands at 22:45 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 22:38:48 UTC | 2.8md | 2 km ESE of Espino, Puerto Rico 18.263°, -67.096° | 15.4 km | - | - | - | ✓ Reviewed | USGS → |
On December 1, 2023, worldwide seismic activity registered a magnitude 2.8 earthquake 2 km ESE of Espino, Puerto Rico at 22:38 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 22:27:29 UTC | 4.3mwr | 75 km S of Hualien City, Taiwan 23.306°, 121.482° | 27.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 earthquake was recorded 75 km S of Hualien City, Taiwan on December 1, 2023 at 22:27 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 21:37:11 UTC | 2.3ml | 43 km NW of Toyah, Texas 31.612°, -104.096° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 43 km NW of Toyah, Texas at 21:37 UTC on December 1, 2023. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 21:11:31 UTC | 4.3mb | Maug Islands region, Northern Mariana Islands 20.052°, 144.932° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake in the Maug Islands region, Northern Mariana Islands with origin time 21:11 UTC on December 1, 2023. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 21:07:02 UTC | 4.2mb | northern East Pacific Rise 10.124°, -104.319° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place near northern East Pacific Rise on December 1, 2023 at 21:07 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 20:41:56 UTC | 2.5ml | 103 km SE of Akhiok, Alaska 56.263°, -153.035° | 15.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 103 km SE of Akhiok, Alaska with origin time 20:41 UTC on December 1, 2023. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 19:57:34 UTC | 2.4ml | 13 km SSE of Carpinteria, CA 34.293°, -119.470° | 2.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 earthquake was recorded 13 km SSE of Carpinteria, CA on December 1, 2023 at 19:57 UTC. 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. | ||||||||
2023-12-01 2023-12-01 19:48:12 UTC | 2.1ml | 11 km N of Borrego Springs, CA 33.351°, -116.364° | 13.8 km | - | - | - | ✓ Reviewed | USGS → |
On December 1, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 11 km N of Borrego Springs, CA at 19:48 UTC. It arrived roughly 1 hours after a larger magnitude 2.4 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. | ||||||||
2023-12-01 2023-12-01 19:46:41 UTC | 2.4ml | 11 km N of Borrego Springs, CA 33.352°, -116.366° | 13.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 1, 2023 at 19:46 UTC, a magnitude 2.4 earthquake struck 11 km N of Borrego Springs, CA. In the 72 hours after this event, the USGS recorded 3 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 19:24:57 UTC | 3.7ml | 48 km SSW of Adak, Alaska 51.449°, -176.801° | 40.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.7 earthquake 48 km SSW of Adak, Alaska at 19:24 UTC on December 1, 2023. See the M3.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 19:09:18 UTC | 3.4ml | 16 km ENE of Wright, Wyoming 43.785°, -105.290° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.4 earthquake was recorded 16 km ENE of Wright, Wyoming on December 1, 2023 at 19:09 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 19:08:24 UTC | 4.0mb | 102 km SE of Alo, Wallis and Futuna -15.031°, -177.508° | 379.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.0 seismic event took place 102 km SE of Alo, Wallis and Futuna on December 1, 2023 at 19:08 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 19:00:22 UTC | 2.7ml | 67 km W of Atka, Alaska 52.229°, -175.182° | 132.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 67 km W of Atka, Alaska on December 1, 2023, with origin time 19:00 UTC. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 18:50:05 UTC | 4.7mww | 81 km NE of Masohi, Indonesia -2.765°, 129.475° | 10.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.7 event was detected 81 km NE of Masohi, Indonesia on December 1, 2023, with origin time 18:50 UTC. It arrived roughly 1 hours after a larger magnitude 5.0 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 18:24:58 UTC | 4.2mb | 24 km E of Zhangfeng, China 24.217°, 98.043° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
December 1, 2023 brought a magnitude 4.2 earthquake 24 km E of Zhangfeng, China, logged at 18:24 UTC. Coming 1 hours after a magnitude 5.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 18:16:24 UTC | 4.1mb | 5 km E of Zhefang, China 24.272°, 98.341° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.1 earthquake 5 km E of Zhefang, China at 18:16 UTC on December 1, 2023. Coming 1 hours after a magnitude 5.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 18:01:43 UTC | 2.5ml | 77 km SSW of Adak, Alaska 51.243°, -177.092° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 1, 2023, worldwide seismic activity registered a magnitude 2.5 earthquake 77 km SSW of Adak, Alaska at 18:01 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 17:58:56 UTC | 5.0mb | 80 km NE of Masohi, Indonesia -2.722°, 129.418° | 19.4 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake 80 km NE of Masohi, Indonesia with origin time 17:58 UTC on December 1, 2023. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 17:54:40 UTC | 4.4mb | 80 km S of Attu Station, Alaska 52.120°, 173.260° | 29.2 km | - | - | - | ✓ Reviewed | USGS → |
At 17:54 UTC on December 1, 2023, a magnitude 4.4 tremor occurred 80 km S of Attu Station, Alaska. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 17:47:08 UTC | 2.2ml | 12 km ESE of Pāhala, Hawaii 19.165°, -155.368° | 28.5 km | - | - | - | Auto | USGS → |
A magnitude 2.2 earthquake was recorded 12 km ESE of Pāhala, Hawaii on December 1, 2023 at 17:47 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 12 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 17:36:34 UTC | 5.0mww | 13 km W of Zhefang, China 24.262°, 98.148° | 10.0 km | 4 | - | - | ✓ Reviewed | USGS → |
On December 1, 2023, worldwide seismic activity registered a magnitude 5.0 earthquake 13 km W of Zhefang, China at 17:36 UTC. The event was offshore. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 16:33:30 UTC | 2.0ml | 33 km W of Anchor Point, Alaska 59.767°, -152.433° | 84.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 33 km W of Anchor Point, Alaska on December 1, 2023 at 16:33 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-01 2023-12-01 16:27:37 UTC | 4.6mb | 108 km SSE of Sola, Vanuatu -14.708°, 168.079° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place 108 km SSE of Sola, Vanuatu on December 1, 2023 at 16:27 UTC. See the M4.6 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 1, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.