Earthquakes on December 23, 2023
258
EARTHQUAKES on December 23, 2023
24-hour UTC period · USGS data
42 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
6
M4.0–4.9
38
M3.0–3.9
22
M2.0–2.9
62
M1.0–1.9
130
Activity Summary
258
Total earthquakes
~250
Daily average
Normal
Activity level
6
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.8
115 km SSE of Vilyuchinsk, Russia
17:48 UTC · 41.9 km deep
Felt by 1
5.6
84 km SE of Pangai, Tonga
23:44 UTC · 10.0 km deep
05.2
100 km SSW of Isangel, Vanuatu
20:43 UTC · 10.0 km deep
5.2
56 km E of Aras-asan, Philippines
16:38 UTC · 35.0 km deep
5.1
34 km E of Barcelona, Philippines
14:22 UTC · 41.8 km deep
Felt by 2
5.0
Komandorskiye Ostrova, Russia region
15:31 UTC · 23.5 km deep
4.9
49 km SE of Tobelo, Indonesia
15:07 UTC · 10.0 km deep
4.9
123 km NE of Kimbe, Papua New Guinea
11:48 UTC · 310.2 km deep
Earthquake Map — December 23, 2023
All Earthquakes — December 23, 2023
Showing 30 of 128 (filtered from 258)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-12-23 2023-12-23 23:47:51 UTC | 4.1mb | 72 km SSW of Kaktovik, Alaska 69.503°, -144.130° | 4.0 km | - | IV | - | ✓ Reviewed | USGS → |
A magnitude 4.1 seismic event took place 72 km SSW of Kaktovik, Alaska on December 23, 2023 at 23:47 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 23:44:49 UTC | 5.6mww | 84 km SE of Pangai, Tonga -20.410°, -173.852° | 10.0 km | - | III | green | ✓ Reviewed | USGS → |
A magnitude 5.6 earthquake was recorded 84 km SE of Pangai, Tonga on December 23, 2023 at 23:44 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. | ||||||||
2023-12-23 2023-12-23 23:35:00 UTC | 2.3md | 2 km S of Maria Antonia, Puerto Rico 17.955°, -66.888° | 13.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 2 km S of Maria Antonia, Puerto Rico with origin time 23:35 UTC on December 23, 2023. It arrived roughly 16 hours after a larger magnitude 2.8 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. | ||||||||
2023-12-23 2023-12-23 23:09:51 UTC | 2.4ml | 131 km SE of Akutan, Alaska 53.214°, -164.519° | 23.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 23, 2023 at 23:09 UTC, a magnitude 2.4 earthquake struck 131 km SE of Akutan, Alaska. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 22:53:31 UTC | 3.2ml | 93 km SW of Atka, Alaska 51.647°, -175.231° | 49.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.2 event was detected 93 km SW of Atka, Alaska on December 23, 2023, with origin time 22:53 UTC. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 22:51:15 UTC | 2.9ml | 15 km S of Volcano, Hawaii 19.305°, -155.209° | 1.3 km | 3 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 15 km S of Volcano, Hawaii on December 23, 2023 at 22:51 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. | ||||||||
2023-12-23 2023-12-23 22:33:35 UTC | 3.5ml | 130 km SW of Adak, Alaska 51.199°, -178.165° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.5 earthquake was recorded 130 km SW of Adak, Alaska on December 23, 2023 at 22:33 UTC. The event was offshore. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 22:29:30 UTC | 4.4mb | Pagan region, Northern Mariana Islands 18.655°, 146.300° | 9.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded in the Pagan region, Northern Mariana Islands on December 23, 2023 at 22:29 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 22:24:06 UTC | 2.3ml | 9 km SSW of Sand Point, Alaska 55.253°, -160.557° | 2.3 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 9 km SSW of Sand Point, Alaska at 22:24 UTC on December 23, 2023. 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. | ||||||||
2023-12-23 2023-12-23 22:22:33 UTC | 2.2ml | 15 km SSE of Volcano, Hawaii 19.326°, -155.159° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
At 22:22 UTC on December 23, 2023, a magnitude 2.2 tremor occurred 15 km SSE of Volcano, Hawaii. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 22:11:10 UTC | 2.1md | 5 km ESE of Ferndale, CA 40.563°, -124.212° | 15.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 5 km ESE of Ferndale, CA at 22:11 UTC on December 23, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 21:54:30 UTC | 4.4mb | 20 km ENE of Nangan, Philippines 6.556°, 126.294° | 134.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 20 km ENE of Nangan, Philippines with origin time 21:54 UTC on December 23, 2023. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 21:21:16 UTC | 4.2mwr | 93 km NE of Hengchun, Taiwan 22.597°, 121.391° | 17.7 km | - | - | - | ✓ Reviewed | USGS → |
December 23, 2023 brought a magnitude 4.2 earthquake 93 km NE of Hengchun, Taiwan, logged at 21:21 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 21:17:33 UTC | 4.8mb | 109 km SSW of Isangel, Vanuatu -20.505°, 169.055° | 30.6 km | - | - | - | ✓ Reviewed | USGS → |
On December 23, 2023 at 21:17 UTC, a magnitude 4.8 earthquake struck 109 km SSW of Isangel, Vanuatu. This event falls inside the aftershock decay of a nearby magnitude 5.2 earthquake that occurred about 1 hours earlier. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 21:14:46 UTC | 2.4ml | 20 km WNW of Grapevine, CA 35.020°, -119.122° | 2.6 km | 1 | - | - | ✓ Reviewed | USGS → |
At 21:14 UTC on December 23, 2023, a magnitude 2.4 tremor occurred 20 km WNW of Grapevine, CA. 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. | ||||||||
2023-12-23 2023-12-23 21:07:50 UTC | 4.2mwr | 97 km NE of Hengchun, Taiwan 22.620°, 121.419° | 19.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 23, 2023 at 21:07 UTC, a magnitude 4.2 earthquake struck 97 km NE of Hengchun, Taiwan. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 20:56:58 UTC | 4.0md | 74 km NE of Miches, Dominican Republic 19.487°, -68.571° | 116.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:56 UTC on December 23, 2023, a magnitude 4.0 tremor occurred 74 km NE of Miches, Dominican Republic. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 20:43:45 UTC | 5.2mww | 100 km SSW of Isangel, Vanuatu -20.391°, 168.953° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.2 earthquake 100 km SSW of Isangel, Vanuatu with origin time 20:43 UTC on December 23, 2023. See the M5.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 20:38:24 UTC | 4.1mb | 229 km SSE of Katsuura, Japan 33.263°, 141.337° | 35.3 km | - | - | - | ✓ Reviewed | USGS → |
December 23, 2023 brought a magnitude 4.1 earthquake 229 km SSE of Katsuura, Japan, logged at 20:38 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 20:11:06 UTC | 2.8md | 12 km N of Yauco, Puerto Rico 18.151°, -66.848° | 21.8 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.8 earthquake 12 km N of Yauco, Puerto Rico at 20:11 UTC on December 23, 2023. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 20:04:46 UTC | 3.2ml | 35 km ESE of Wright, Wyoming 43.613°, -105.089° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.2 earthquake 35 km ESE of Wright, Wyoming came in on December 23, 2023 at 20:04 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. | ||||||||
2023-12-23 2023-12-23 19:24:11 UTC | 4.6mb | Owen Fracture Zone region 17.195°, 59.847° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 23, 2023, worldwide seismic activity registered a magnitude 4.6 earthquake in the Owen Fracture Zone region at 19:24 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 19:23:31 UTC | 2.2ml | 85 km WSW of Adak, Alaska 51.601°, -177.787° | 76.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.2 earthquake 85 km WSW of Adak, Alaska at 19:23 UTC on December 23, 2023. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 19:07:18 UTC | 2.6ml | 50 km W of Mentone, Texas 31.700°, -104.134° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
On December 23, 2023, worldwide seismic activity registered a magnitude 2.6 earthquake 50 km W of Mentone, Texas at 19:07 UTC. In the 72 hours after this event, the USGS recorded 4 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 19:06:44 UTC | 3.1ml | 21 km SE of Atka, Alaska 52.085°, -173.947° | 134.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 23, 2023 at 19:06 UTC, a magnitude 3.1 earthquake struck 21 km SE of Atka, Alaska. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 19:03:27 UTC | 4.3mb | Mariana Islands region 21.669°, 144.042° | 169.1 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected in the Mariana Islands region on December 23, 2023, with origin time 19:03 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 18:48:25 UTC | 4.6mb | 74 km WNW of Vallenar, Chile -28.378°, -71.488° | 28.3 km | - | - | - | ✓ Reviewed | USGS → |
At 18:48 UTC on December 23, 2023, a magnitude 4.6 tremor occurred 74 km WNW of Vallenar, Chile. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 18:41:52 UTC | 2.0ml | 42 km W of Skwentna, Alaska 61.959°, -152.201° | 115.8 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 42 km W of Skwentna, Alaska came in on December 23, 2023 at 18:41 UTC. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 18:01:28 UTC | 2.1md | 11 km SE of Mineral, CA 40.276°, -121.493° | 8.7 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 11 km SE of Mineral, CA on December 23, 2023, with origin time 18:01 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-23 2023-12-23 17:58:26 UTC | 2.7ml | 47 km ESE of Egegik, Alaska 58.121°, -156.590° | 178.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.7 event was detected 47 km ESE of Egegik, Alaska on December 23, 2023, with origin time 17:58 UTC. See the M2.7 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 23, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.