Earthquakes on April 12, 2023
417
EARTHQUAKES on April 12, 2023
24-hour UTC period · USGS data
84 km deep · 10 people felt it
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
4
M4.0–4.9
28
M3.0–3.9
15
M2.0–2.9
82
M1.0–1.9
288
Activity Summary
417
Total earthquakes
~250
Daily average
Elevated
Activity level
4
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
5.3
86 km SE of Pondaguitan, Philippines
02:02 UTC · 83.5 km deep
Felt by 10
5.0
213 km WSW of Tual, Indonesia
23:07 UTC · 65.6 km deep
5.0
South Indian Ocean
13:59 UTC · 10.0 km deep
5.0
south of the Kermadec Islands
00:43 UTC · 35.0 km deep
4.8
286 km SSE of Ambon, Indonesia
03:03 UTC · 238.1 km deep
4.8
central East Pacific Rise
02:19 UTC · 10.0 km deep
4.7
south of the Fiji Islands
14:35 UTC · 497.7 km deep
4.5
south of Java, Indonesia
08:32 UTC · 19.6 km deep
Earthquake Map — April 12, 2023
All Earthquakes — April 12, 2023
Showing 30 of 129 (filtered from 417)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-04-12 2023-04-12 23:38:17 UTC | 2.3md | 5 km ESE of Pole Ojea, Puerto Rico 17.960°, -67.136° | 4.3 km | - | - | - | ✓ Reviewed | USGS → |
April 12, 2023 brought a magnitude 2.3 earthquake 5 km ESE of Pole Ojea, Puerto Rico, logged at 23:38 UTC. Coming 23 hours after a magnitude 3.0 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. | ||||||||
2023-04-12 2023-04-12 23:30:55 UTC | 2.3ml | 4 km SW of P?hala, Hawaii 19.168°, -155.505° | 30.6 km | - | - | - | Auto | USGS → |
Reports of a magnitude 2.3 earthquake 4 km SW of P?hala, Hawaii came in on April 12, 2023 at 23:30 UTC. It arrived roughly 13 hours after a larger magnitude 2.5 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. | ||||||||
2023-04-12 2023-04-12 23:21:30 UTC | 2.6ml | 152 km SW of Adak, Alaska 51.119°, -178.475° | 24.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.6 seismic event took place 152 km SW of Adak, Alaska on April 12, 2023 at 23:21 UTC. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 23:21:20 UTC | 2.0ml | 26 km SSE of Skwentna, Alaska 61.779°, -151.155° | 79.6 km | - | - | - | ✓ Reviewed | USGS → |
April 12, 2023 brought a magnitude 2.0 earthquake 26 km SSE of Skwentna, Alaska, logged at 23:21 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 23:12:49 UTC | 4.3mb | 28 km NNE of Nemuro, Japan 43.543°, 145.757° | 101.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 28 km NNE of Nemuro, Japan at 23:12 UTC on April 12, 2023. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 23:07:46 UTC | 5.0mb | 213 km WSW of Tual, Indonesia -6.425°, 130.995° | 65.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 5.0 earthquake was recorded 213 km WSW of Tual, Indonesia on April 12, 2023 at 23:07 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 23:05:13 UTC | 4.4mb | 67 km N of Isangel, Vanuatu -18.935°, 169.228° | 205.4 km | - | - | - | ✓ Reviewed | USGS → |
On April 12, 2023 at 23:05 UTC, a magnitude 4.4 earthquake struck 67 km N of Isangel, Vanuatu. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 22:17:51 UTC | 3.1ml | Andreanof Islands, Aleutian Islands, Alaska 52.046°, -175.472° | 109.2 km | - | - | - | ✓ Reviewed | USGS → |
On April 12, 2023 at 22:17 UTC, a magnitude 3.1 earthquake struck near Andreanof Islands, Aleutian Islands, Alaska. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 22:11:49 UTC | 3.1ml | 67 km SSW of Lorino, Russia 64.937°, -172.216° | 14.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.1 earthquake was recorded 67 km SSW of Lorino, Russia on April 12, 2023 at 22:11 UTC. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 21:38:07 UTC | 2.5ml | 28 km SE of Deering, Alaska 65.896°, -162.274° | 7.8 km | - | - | - | ✓ Reviewed | USGS → |
At 21:38 UTC on April 12, 2023, a magnitude 2.5 tremor occurred 28 km SE of Deering, Alaska. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 21:22:07 UTC | 2.4ml | 1 km S of P?hala, Hawaii 19.185°, -155.477° | 32.5 km | 1 | - | - | Auto | USGS → |
Reports of a magnitude 2.4 earthquake 1 km S of P?hala, Hawaii came in on April 12, 2023 at 21:22 UTC. Coming 11 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 21:21:28 UTC | 2.4ml | 10km NNW of Delta, B.C., MX 32.436°, -115.228° | 11.8 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place 10km NNW of Delta, B.C., MX on April 12, 2023 at 21:21 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 21:21:04 UTC | 2.3md | 5 km WSW of Fuig, Puerto Rico 17.961°, -66.964° | 15.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 5 km WSW of Fuig, Puerto Rico at 21:21 UTC on April 12, 2023. This event falls inside the aftershock decay of a nearby magnitude 3.0 earthquake that occurred about 21 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 21:00:38 UTC | 2.5ml | 30 km ENE of Bridgeport, California 38.362°, -118.913° | 9.0 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 30 km ENE of Bridgeport, California at 21:00 UTC on April 12, 2023. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 20:56:18 UTC | 4.1mb | 234 km SSE of Tabiauan, Philippines 4.017°, 122.556° | 604.8 km | - | - | - | ✓ Reviewed | USGS → |
At 20:56 UTC on April 12, 2023, a magnitude 4.1 tremor occurred 234 km SSE of Tabiauan, Philippines. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 20:53:23 UTC | 3.2ml | 34 km WSW of Birney, Montana 45.154°, -106.887° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
April 12, 2023 brought a magnitude 3.2 earthquake 34 km WSW of Birney, Montana, logged at 20:53 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. | ||||||||
2023-04-12 2023-04-12 20:32:55 UTC | 2.2md | 6 km WSW of Guánica, Puerto Rico 17.951°, -66.963° | 14.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.2 event was detected 6 km WSW of Guánica, Puerto Rico on April 12, 2023, with origin time 20:32 UTC. It arrived roughly 20 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 20:26:41 UTC | 2.9ml | 32 km NNW of Brevig Mission, Alaska 65.582°, -166.834° | 18.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.9 seismic event took place 32 km NNW of Brevig Mission, Alaska on April 12, 2023 at 20:26 UTC. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 19:54:45 UTC | 2.5md | Puerto Rico region 17.932°, -66.963° | 15.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake in the Puerto Rico region with origin time 19:54 UTC on April 12, 2023. Coming 19 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 19:22:33 UTC | 2.0ml | 15km ESE of Porterville, CA 36.015°, -118.861° | 6.8 km | 1 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 15km ESE of Porterville, CA at 19:22 UTC on April 12, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 18:59:43 UTC | 2.2md | 4 km S of Guánica, Puerto Rico 17.930°, -66.901° | 8.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 4 km S of Guánica, Puerto Rico on April 12, 2023 at 18:59 UTC. Coming 18 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 18:59:00 UTC | 4.4mb | 208 km NE of Kindu, Democratic Republic of the Congo -1.442°, 27.063° | 10.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.4 earthquake was recorded 208 km NE of Kindu, Democratic Republic of the Congo on April 12, 2023 at 18:59 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 18:36:44 UTC | 2.4ml | 51 km SSW of Denio, Nevada 41.539°, -118.778° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 12, 2023, worldwide seismic activity registered a magnitude 2.4 earthquake 51 km SSW of Denio, Nevada at 18:36 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. | ||||||||
2023-04-12 2023-04-12 18:02:24 UTC | 3.1ml | 18 km ENE of Wright, Wyoming 43.826°, -105.291° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.1 earthquake 18 km ENE of Wright, Wyoming with origin time 18:02 UTC on April 12, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 17:46:58 UTC | 2.2ml | Alaska Peninsula 58.330°, -154.708° | 0.7 km | - | - | - | ✓ Reviewed | USGS → |
On April 12, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake near Alaska Peninsula at 17:46 UTC. 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. | ||||||||
2023-04-12 2023-04-12 17:00:52 UTC | 2.1ml | 87 km S of False Pass, Alaska 54.077°, -163.643° | 25.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 87 km S of False Pass, Alaska on April 12, 2023 at 17:00 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 16:51:27 UTC | 2.7ml | 24 km NW of Stanley, Idaho 44.356°, -115.183° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 16:51 UTC on April 12, 2023, a magnitude 2.7 tremor occurred 24 km NW of Stanley, Idaho. The event was offshore. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 16:42:49 UTC | 3.0ml | 75 km SE of King Cove, Alaska 54.521°, -161.619° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 75 km SE of King Cove, Alaska on April 12, 2023, with origin time 16:42 UTC. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-12 2023-04-12 16:33:13 UTC | 2.1md | 2 km SSW of Liborio Negron Torres, Puerto Rico 18.021°, -66.953° | 2.1 km | - | - | - | ✓ Reviewed | USGS → |
At 16:33 UTC on April 12, 2023, a magnitude 2.1 tremor occurred 2 km SSW of Liborio Negron Torres, Puerto Rico. It arrived roughly 16 hours after a larger magnitude 3.0 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. | ||||||||
2023-04-12 2023-04-12 16:32:01 UTC | 2.0ml | 52 km SSE of Ugashik, Alaska 57.095°, -156.981° | 85.8 km | - | - | - | ✓ Reviewed | USGS → |
On April 12, 2023 at 16:32 UTC, a magnitude 2.0 earthquake struck 52 km SSE of Ugashik, Alaska. 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 April 12, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.