Earthquakes on April 1, 2023
276
EARTHQUAKES on April 1, 2023
24-hour UTC period · USGS data
LARGEST: M5.1 — 34 km SSE of Mohr, Iran
28 km deep · 1 person felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
1
M4.0–4.9
38
M3.0–3.9
15
M2.0–2.9
57
M1.0–1.9
165
Activity Summary
276
Total earthquakes
~250
Daily average
Normal
Activity level
1
M5.0+ events
Significant Earthquakes (M4.5+)
5.1
34 km SSE of Mohr, Iran
15:57 UTC · 27.8 km deep
Felt by 1
4.9
91 km S of Isangel, Vanuatu
10:36 UTC · 90.1 km deep
4.8
218 km ENE of Sola, Vanuatu
18:11 UTC · 642.7 km deep
4.7
Santa Cruz Islands region
17:54 UTC · 641.7 km deep
4.7
8 km SE of Lampa, Peru
12:26 UTC · 213.3 km deep
4.7
127 km ENE of Masohi, Indonesia
07:04 UTC · 22.0 km deep
4.6
99 km SW of Zhaotong, China
21:54 UTC · 14.5 km deep
4.6
near the west coast of Honshu, Japan
09:41 UTC · 15.2 km deep
Earthquake Map — April 1, 2023
All Earthquakes — April 1, 2023
Showing 30 of 111 (filtered from 276)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-04-01 2023-04-01 23:19:56 UTC | 2.8md | 29 km S of Esperanza, Puerto Rico 17.833°, -65.423° | 13.4 km | - | - | - | ✓ Reviewed | USGS → |
April 1, 2023 brought a magnitude 2.8 earthquake 29 km S of Esperanza, Puerto Rico, logged at 23:19 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 22:53:38 UTC | 4.1mb | Off the coast of Oregon 43.868°, -129.827° | 10.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On April 1, 2023, worldwide seismic activity registered a magnitude 4.1 earthquake near Off the coast of Oregon at 22:53 UTC. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 21:54:52 UTC | 4.6mb | 99 km SW of Zhaotong, China 26.772°, 102.915° | 14.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.6 event was detected 99 km SW of Zhaotong, China on April 1, 2023, with origin time 21:54 UTC. The event was offshore. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 21:42:01 UTC | 3.1ml | 8 km NE of Point of Rocks, Wyoming 41.735°, -108.708° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
At 21:42 UTC on April 1, 2023, a magnitude 3.1 tremor occurred 8 km NE of Point of Rocks, Wyoming. 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. | ||||||||
2023-04-01 2023-04-01 21:24:39 UTC | 4.3mb | 16 km NNW of Ilgaz, Turkey 41.055°, 33.535° | 6.3 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.3 event was detected 16 km NNW of Ilgaz, Turkey on April 1, 2023, with origin time 21:24 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 21:05:49 UTC | 2.3md | 21km SSW of Mariposa, CA 37.300°, -120.019° | 26.5 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 21km SSW of Mariposa, CA on April 1, 2023 at 21:05 UTC. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 20:55:11 UTC | 3.0ml | 44 km ESE of Nikolski, Alaska 52.722°, -168.311° | 48.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.0 earthquake was recorded 44 km ESE of Nikolski, Alaska on April 1, 2023 at 20:55 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 20:39:47 UTC | 2.0ml | 33 km NNE of King Cove, Alaska 55.341°, -162.143° | 132.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 33 km NNE of King Cove, Alaska at 20:39 UTC on April 1, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 20:22:59 UTC | 4.2mb | Fiji region -18.018°, -178.818° | 561.3 km | - | - | - | ✓ Reviewed | USGS → |
On April 1, 2023, worldwide seismic activity registered a magnitude 4.2 earthquake in the Fiji region at 20:22 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. | ||||||||
2023-04-01 2023-04-01 20:22:08 UTC | 2.0md | 5 km ENE of P?hala, Hawaii 19.229°, -155.429° | 34.8 km | - | - | - | Auto | USGS → |
At 20:22 UTC on April 1, 2023, a magnitude 2.0 tremor occurred 5 km ENE of P?hala, Hawaii. Coming 5 hours after a magnitude 2.3 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:56:23 UTC | 4.1mb | 36 km NE of Gerāsh, Iran 27.917°, 54.375° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 19:56 UTC on April 1, 2023, a magnitude 4.1 tremor occurred 36 km NE of Gerāsh, Iran. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:53:51 UTC | 2.1ml | 87 km ESE of Egegik, Alaska 57.954°, -155.969° | 17.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 87 km ESE of Egegik, Alaska at 19:53 UTC on April 1, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:43:06 UTC | 4.0mb | 29 km SSE of Mohr, Iran 27.309°, 52.994° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.0 earthquake 29 km SSE of Mohr, Iran at 19:43 UTC on April 1, 2023. Coming 4 hours after a magnitude 5.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:35:29 UTC | 2.7md | 6 km WSW of Guánica, Puerto Rico 17.944°, -66.957° | 14.1 km | - | - | - | ✓ Reviewed | USGS → |
On April 1, 2023, worldwide seismic activity registered a magnitude 2.7 earthquake 6 km WSW of Guánica, Puerto Rico at 19:35 UTC. It arrived roughly 9 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:35:11 UTC | 2.9ml | western Texas 31.638°, -104.413° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
At 19:35 UTC on April 1, 2023, a magnitude 2.9 tremor occurred near western Texas. It arrived roughly 1 hours after a larger magnitude 3.4 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:33:38 UTC | 3.4ml | 61 km S of Whites City, New Mexico 31.621°, -104.428° | 7.9 km | - | - | - | ✓ Reviewed | USGS → |
On April 1, 2023 at 19:33 UTC, a magnitude 3.4 earthquake struck 61 km S of Whites City, New Mexico. 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 M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:33:08 UTC | 2.2ml | 65 km W of Tyonek, Alaska 61.041°, -152.347° | 106.6 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 65 km W of Tyonek, Alaska on April 1, 2023 at 19:33 UTC. The event was offshore. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:26:32 UTC | 3.1ml | 289 km WSW of Adak, Alaska 51.193°, 179.335° | 27.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.1 earthquake 289 km WSW of Adak, Alaska at 19:26 UTC on April 1, 2023. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 19:03:00 UTC | 4.3mb | near the coast of Nicaragua 11.668°, -86.123° | 149.9 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.3 earthquake near near the coast of Nicaragua came in on April 1, 2023 at 19:03 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 18:35:14 UTC | 2.6ml | 48 km NNE of Petersville, Alaska 62.885°, -150.331° | 86.9 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.6 earthquake 48 km NNE of Petersville, Alaska at 18:35 UTC on April 1, 2023. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 18:27:32 UTC | 4.2mb | 164 km NE of Sola, Vanuatu -12.934°, 168.731° | 634.1 km | - | - | - | ✓ Reviewed | USGS → |
At 18:27 UTC on April 1, 2023, a magnitude 4.2 tremor occurred 164 km NE of Sola, Vanuatu. 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. | ||||||||
2023-04-01 2023-04-01 18:11:20 UTC | 4.8mb | 218 km ENE of Sola, Vanuatu -12.924°, 169.321° | 642.7 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.8 earthquake 218 km ENE of Sola, Vanuatu with origin time 18:11 UTC on April 1, 2023. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 18:09:17 UTC | 4.0mb | 208 km ENE of Sola, Vanuatu -13.146°, 169.324° | 681.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 4.0 event was detected 208 km ENE of Sola, Vanuatu on April 1, 2023, with origin time 18:09 UTC. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 17:57:50 UTC | 4.3mb | Santa Cruz Islands region -12.897°, 169.274° | 643.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.3 seismic event took place in the Santa Cruz Islands region on April 1, 2023 at 17:57 UTC. It arrived roughly 1 hours after a larger magnitude 4.7 mainshock in the same 20 km area, placing it within the typical aftershock window. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 17:54:22 UTC | 4.7mb | Santa Cruz Islands region -12.928°, 169.310° | 641.7 km | - | - | - | ✓ Reviewed | USGS → |
On April 1, 2023, worldwide seismic activity registered a magnitude 4.7 earthquake in the Santa Cruz Islands region at 17:54 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 17:34:09 UTC | 4.2mb | Fiji region -19.650°, -177.738° | 535.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.2 earthquake in the Fiji region at 17:34 UTC on April 1, 2023. 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. | ||||||||
2023-04-01 2023-04-01 17:30:56 UTC | 3.4ml | Island of Hawaii, Hawaii 19.333°, -155.190° | 7.0 km | 14 | III | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.4 earthquake near Island of Hawaii, Hawaii with origin time 17:30 UTC on April 1, 2023. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 17:03:30 UTC | 2.1ml | 168 km SE of Nikolski, Alaska 51.997°, -166.914° | 32.2 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 168 km SE of Nikolski, Alaska on April 1, 2023, with origin time 17:03 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-01 2023-04-01 17:02:46 UTC | 2.2md | 3km NNE of San Leandro, CA 37.752°, -122.142° | 7.3 km | 19 | - | - | ✓ Reviewed | USGS → |
On April 1, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake 3km NNE of San Leandro, CA at 17:02 UTC. It arrived roughly 1 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. | ||||||||
2023-04-01 2023-04-01 16:54:32 UTC | 3.1ml | 75 km NW of Atka, Alaska 52.709°, -174.919° | 204.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 3.1 event was detected 75 km NW of Atka, Alaska on April 1, 2023, with origin time 16:54 UTC. The event was offshore. See the M3.1 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 1, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.