Earthquakes on December 15, 2023
272
EARTHQUAKES on December 15, 2023
24-hour UTC period · USGS data
LARGEST: M5.9 — southern Mid-Atlantic Ridge
10 km deep0
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
1
M4.0–4.9
36
M3.0–3.9
15
M2.0–2.9
64
M1.0–1.9
156
Activity Summary
272
Total earthquakes
~250
Daily average
Normal
Activity level
1
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
New Caledonia
2
Significant Earthquakes (M4.5+)
5.9
southern Mid-Atlantic Ridge
22:23 UTC · 10.0 km deep
04.9
122 km E of Aras-asan, Philippines
16:35 UTC · 10.0 km deep
4.9
110 km E of Aras-asan, Philippines
16:05 UTC · 10.0 km deep
4.9
Banda Sea
00:02 UTC · 158.4 km deep
4.7
114 km E of Aras-asan, Philippines
15:40 UTC · 10.0 km deep
4.7
80 km ENE of Barcelona, Philippines
13:43 UTC · 10.0 km deep
4.7
108 km E of Aras-asan, Philippines
04:30 UTC · 10.0 km deep
4.6
38 km E of Santa Maria, Philippines
21:32 UTC · 74.0 km deep
Earthquake Map — December 15, 2023
All Earthquakes — December 15, 2023
Showing 30 of 116 (filtered from 272)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-12-15 2023-12-15 23:55:12 UTC | 4.5mb | southeast of the Loyalty Islands -23.481°, 170.604° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 15, 2023 at 23:55 UTC, a magnitude 4.5 earthquake struck southeast of the Loyalty Islands. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 23:52:24 UTC | 2.6ml | 121 km ESE of Akutan, Alaska 53.780°, -164.029° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
At 23:52 UTC on December 15, 2023, a magnitude 2.6 tremor occurred 121 km ESE of Akutan, Alaska. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 23:37:33 UTC | 2.3ml | 92 km SSE of Sand Point, Alaska 54.606°, -159.819° | 15.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.3 earthquake 92 km SSE of Sand Point, Alaska with origin time 23:37 UTC on December 15, 2023. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 23:25:06 UTC | 2.2ml | 23 km WNW of Stanley, Idaho 44.331°, -115.191° | 12.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 15, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake 23 km WNW of Stanley, Idaho at 23:25 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 23:03:40 UTC | 2.1ml | 30 km E of Skwentna, Alaska 61.984°, -150.820° | 66.1 km | - | - | - | ✓ Reviewed | USGS → |
December 15, 2023 brought a magnitude 2.1 earthquake 30 km E of Skwentna, Alaska, logged at 23:03 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 22:56:14 UTC | 2.2ml | 47 km E of Denali National Park, Alaska 63.533°, -150.763° | 13.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 47 km E of Denali National Park, Alaska on December 15, 2023 at 22:56 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 22:55:36 UTC | 2.3md | 3 km W of Pāhala, Hawaii 19.202°, -155.509° | 25.0 km | - | - | - | Auto | USGS → |
The USGS recorded this magnitude 2.3 earthquake 3 km W of Pāhala, Hawaii at 22:55 UTC on December 15, 2023. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 2 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 22:28:31 UTC | 4.4mb | 107 km E of Aras-asan, Philippines 8.901°, 127.285° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On December 15, 2023 at 22:28 UTC, a magnitude 4.4 earthquake struck 107 km E of Aras-asan, Philippines. Coming 6 hours after a magnitude 4.9 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 22:23:42 UTC | 5.9mww | southern Mid-Atlantic Ridge -35.965°, -17.009° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
On December 15, 2023 at 22:23 UTC, a magnitude 5.9 earthquake struck near southern Mid-Atlantic Ridge. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on December 15, 2023. See the M5.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 22:17:05 UTC | 4.2mb | 95 km SW of Labuha, Indonesia -1.216°, 126.853° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.2 seismic event took place 95 km SW of Labuha, Indonesia on December 15, 2023 at 22:17 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 22:03:19 UTC | 2.4md | 28 km E of Honaunau-Napoopoo, Hawaii 19.451°, -155.591° | 39.8 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.4 earthquake 28 km E of Honaunau-Napoopoo, Hawaii with origin time 22:03 UTC on December 15, 2023. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 22:03:00 UTC | 4.4mb | Vanuatu region -13.965°, 171.181° | 625.9 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded in the Vanuatu region on December 15, 2023 at 22:03 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 21:57:12 UTC | 3.2md | 64 km ENE of Punta Cana, Dominican Republic 18.804°, -67.837° | 9.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 3.2 earthquake 64 km ENE of Punta Cana, Dominican Republic came in on December 15, 2023 at 21:57 UTC. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 21:52:36 UTC | 2.1ml | 14 km NE of Ridgecrest, CA 35.706°, -117.556° | 4.2 km | - | - | - | ✓ Reviewed | USGS → |
December 15, 2023 brought a magnitude 2.1 earthquake 14 km NE of Ridgecrest, CA, logged at 21:52 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. | ||||||||
2023-12-15 2023-12-15 21:36:06 UTC | 2.0ml | 7 km S of Volcano, Hawaii 19.377°, -155.234° | 1.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.0 earthquake 7 km S of Volcano, Hawaii with origin time 21:36 UTC on December 15, 2023. This event falls inside the aftershock decay of a nearby magnitude 2.9 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 M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 21:34:10 UTC | 4.2mb | 284 km WNW of Houma, Tonga -19.969°, -177.715° | 495.7 km | - | - | - | ✓ Reviewed | USGS → |
December 15, 2023 brought a magnitude 4.2 earthquake 284 km WNW of Houma, Tonga, logged at 21:34 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 21:32:14 UTC | 4.6mb | 38 km E of Santa Maria, Philippines 8.046°, 126.787° | 74.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake 38 km E of Santa Maria, Philippines came in on December 15, 2023 at 21:32 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 21:31:28 UTC | 3.1ml | 89 km SSW of Nikolski, Alaska 52.184°, -169.297° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
December 15, 2023 brought a magnitude 3.1 earthquake 89 km SSW of Nikolski, Alaska, logged at 21:31 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 21:18:57 UTC | 2.3md | 1 km NE of Pāhala, Hawaii 19.213°, -155.470° | 33.4 km | - | - | - | Auto | USGS → |
This magnitude 2.3 event was detected 1 km NE of Pāhala, Hawaii on December 15, 2023, with origin time 21:18 UTC. Coming 1 hours after a magnitude 2.4 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 21:08:28 UTC | 2.4ml | 13 km SSE of Kanarraville, Utah 37.431°, -113.121° | 10.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 earthquake was recorded 13 km SSE of Kanarraville, Utah on December 15, 2023 at 21:08 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:58:28 UTC | 2.4md | 4 km S of Pāhala, Hawaii 19.160°, -155.471° | 31.8 km | - | - | - | Auto | USGS → |
On December 15, 2023, worldwide seismic activity registered a magnitude 2.4 earthquake 4 km S of Pāhala, Hawaii at 20:58 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 17 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:56:02 UTC | 2.8ml | 10 km E of Rampart, Alaska 65.502°, -149.947° | 15.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 seismic event took place 10 km E of Rampart, Alaska on December 15, 2023 at 20:56 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:45:18 UTC | 3.1md | 70 km N of Charlotte Amalie, U.S. Virgin Islands 18.970°, -65.016° | 25.2 km | - | - | - | ✓ Reviewed | USGS → |
On December 15, 2023 at 20:45 UTC, a magnitude 3.1 earthquake struck 70 km N of Charlotte Amalie, U.S. Virgin Islands. Coming 1 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:43:19 UTC | 3.3md | 73 km N of Charlotte Amalie, U.S. Virgin Islands 19.000°, -64.998° | 20.9 km | - | - | - | ✓ Reviewed | USGS → |
At 20:43 UTC on December 15, 2023, a magnitude 3.3 tremor occurred 73 km N of Charlotte Amalie, U.S. Virgin Islands. Coming 1 hours after a magnitude 4.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:42:41 UTC | 4.0ml | 72 km N of Charlotte Amalie, U.S. Virgin Islands 18.995°, -65.001° | 26.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.0 earthquake 72 km N of Charlotte Amalie, U.S. Virgin Islands came in on December 15, 2023 at 20:42 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:30:06 UTC | 2.2ml | 1 km WSW of Pāhala, Hawaii 19.200°, -155.491° | 31.2 km | - | - | - | Auto | USGS → |
At 20:30 UTC on December 15, 2023, a magnitude 2.2 tremor occurred 1 km WSW of Pāhala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 11 hours earlier. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:29:34 UTC | 4.2mb | 44 km ENE of Hinatuan, Philippines 8.568°, 126.686° | 66.7 km | - | - | - | ✓ Reviewed | USGS → |
On December 15, 2023 at 20:29 UTC, a magnitude 4.2 earthquake struck 44 km ENE of Hinatuan, Philippines. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:24:22 UTC | 4.4mwr | 22 km E of Mutatá, Colombia 7.210°, -76.239° | 46.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.4 earthquake 22 km E of Mutatá, Colombia with origin time 20:24 UTC on December 15, 2023. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:09:27 UTC | 3.3ml | 29 km SE of Wright, Wyoming 43.562°, -105.229° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.3 earthquake 29 km SE of Wright, Wyoming at 20:09 UTC on December 15, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-12-15 2023-12-15 20:04:22 UTC | 4.3mb | 237 km ENE of Hicks Bay, New Zealand -37.188°, -179.069° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:04 UTC on December 15, 2023, a magnitude 4.3 tremor occurred 237 km ENE of Hicks Bay, New Zealand. See the M4.3 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 15, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.