Earthquakes on April 15, 2023
310
EARTHQUAKES on April 15, 2023
24-hour UTC period · USGS data
LARGEST: M5.9 — Southwest Indian Ridge
10 km deep
Elevated activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
3
M4.0–4.9
39
M3.0–3.9
6
M2.0–2.9
50
M1.0–1.9
212
Activity Summary
310
Total earthquakes
~250
Daily average
Elevated
Activity level
3
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
5.9
Southwest Indian Ridge
15:01 UTC · 10.0 km deep
5.5
94 km SSW of Pagar Alam, Indonesia
15:07 UTC · 62.2 km deep
Felt by 18
5.0
Southwest Indian Ridge
21:03 UTC · 10.0 km deep
4.8
south of the Fiji Islands
17:13 UTC · 523.4 km deep
4.8
Southwest Indian Ridge
14:41 UTC · 10.0 km deep
4.7
149 km WSW of Panguna, Papua New Guinea
23:20 UTC · 10.0 km deep
4.7
southern East Pacific Rise
02:17 UTC · 10.0 km deep
4.7
99 km NE of Neiafu, Tonga
00:05 UTC · 35.0 km deep
Earthquake Map — April 15, 2023
All Earthquakes — April 15, 2023
Showing 30 of 98 (filtered from 310)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-04-15 2023-04-15 23:53:10 UTC | 2.0ml | 15km S of Salton City, CA 33.168°, -115.933° | 4.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 15km S of Salton City, CA came in on April 15, 2023 at 23:53 UTC. 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. | ||||||||
2023-04-15 2023-04-15 23:48:15 UTC | 2.7md | 5 km WSW of Guánica, Puerto Rico 17.945°, -66.956° | 14.6 km | - | - | - | ✓ Reviewed | USGS → |
At 23:48 UTC on April 15, 2023, a magnitude 2.7 tremor occurred 5 km WSW of Guánica, 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. See the M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 23:47:36 UTC | 2.0ml | 51 km W of Mentone, Texas 31.698°, -104.139° | 7.1 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023, worldwide seismic activity registered a magnitude 2.0 earthquake 51 km W of Mentone, Texas at 23:47 UTC. It arrived roughly 1 hours after a larger magnitude 3.1 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 23:45:51 UTC | 2.1ml | 50 km W of Mentone, Texas 31.702°, -104.135° | 7.3 km | - | - | - | ✓ Reviewed | USGS → |
April 15, 2023 brought a magnitude 2.1 earthquake 50 km W of Mentone, Texas, logged at 23:45 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 1 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 23:44:03 UTC | 3.0ml | 50 km W of Mentone, Texas 31.700°, -104.135° | 7.9 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 3.0 event was detected 50 km W of Mentone, Texas on April 15, 2023, with origin time 23:44 UTC. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 1 hours earlier. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 23:38:27 UTC | 2.5ml | 214 km WSW of Adak, Alaska 51.089°, -179.450° | 22.8 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023, worldwide seismic activity registered a magnitude 2.5 earthquake 214 km WSW of Adak, Alaska at 23:38 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 23:21:56 UTC | 2.5md | 8 km SSE of Maria Antonia, Puerto Rico 17.907°, -66.864° | 12.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.5 earthquake 8 km SSE of Maria Antonia, Puerto Rico with origin time 23:21 UTC on April 15, 2023. Coming 15 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. | ||||||||
2023-04-15 2023-04-15 23:20:28 UTC | 4.7mb | 149 km WSW of Panguna, Papua New Guinea -6.853°, 154.248° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.7 earthquake 149 km WSW of Panguna, Papua New Guinea at 23:20 UTC on April 15, 2023. See the M4.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 23:19:02 UTC | 2.5md | 6 km WSW of Fuig, Puerto Rico 17.959°, -66.971° | 15.2 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023 at 23:19 UTC, a magnitude 2.5 earthquake struck 6 km WSW of Fuig, Puerto Rico. It arrived roughly 15 hours after a larger magnitude 3.0 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 23:16:45 UTC | 2.4ml | 45 km E of Nikolski, Alaska 52.883°, -168.190° | 58.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.4 event was detected 45 km E of Nikolski, Alaska on April 15, 2023, with origin time 23:16 UTC. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:56:12 UTC | 2.8md | Puerto Rico region 17.903°, -66.865° | 12.8 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023, worldwide seismic activity registered a magnitude 2.8 earthquake in the Puerto Rico region at 22:56 UTC. Coming 15 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:52:50 UTC | 2.8ml | 100 km SW of Nikolski, Alaska 52.328°, -169.945° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023 at 22:52 UTC, a magnitude 2.8 earthquake struck 100 km SW of Nikolski, Alaska. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:42:28 UTC | 4.3mb | off the coast of northern Peru -7.556°, -83.227° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake near off the coast of northern Peru with origin time 22:42 UTC on April 15, 2023. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:37:42 UTC | 2.1ml | 28 km W of Nanwalek, Alaska 59.371°, -152.429° | 68.6 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023 at 22:37 UTC, a magnitude 2.1 earthquake struck 28 km W of Nanwalek, Alaska. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:35:39 UTC | 3.1ml | 51 km W of Mentone, Texas 31.703°, -104.138° | 6.7 km | - | - | - | ✓ Reviewed | USGS → |
At 22:35 UTC on April 15, 2023, a magnitude 3.1 tremor occurred 51 km W of Mentone, Texas. In the 72 hours after this event, the USGS recorded 6 smaller earthquakes within 20 km, consistent with an ongoing aftershock sequence rooted here. See the M3.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:35:28 UTC | 4.0mb | 59 km ENE of Kuril’sk, Russia 45.526°, 148.514° | 141.7 km | - | - | - | ✓ Reviewed | USGS → |
April 15, 2023 brought a magnitude 4.0 earthquake 59 km ENE of Kuril’sk, Russia, logged at 22:35 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:25:05 UTC | 4.0md | 28 km SE of Punta Cana, Dominican Republic 18.392°, -68.221° | 158.0 km | 1 | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.0 earthquake 28 km SE of Punta Cana, Dominican Republic with origin time 22:25 UTC on April 15, 2023. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:10:34 UTC | 2.4md | Puerto Rico region 17.955°, -66.952° | 15.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 seismic event took place in the Puerto Rico region on April 15, 2023 at 22:10 UTC. Coming 14 hours after a magnitude 3.0 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 22:05:28 UTC | 4.1mb | Rota region, Northern Mariana Islands 14.001°, 145.179° | 124.9 km | - | - | - | ✓ Reviewed | USGS → |
At 22:05 UTC on April 15, 2023, a magnitude 4.1 tremor occurred in the Rota region, Northern Mariana Islands. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 21:51:02 UTC | 4.1mb | Central Turkey 37.604°, 37.165° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.1 earthquake near Central Turkey at 21:51 UTC on April 15, 2023. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 21:35:33 UTC | 4.6mwr | Saint Thomas, Jamaica 17.915°, -76.497° | 10.0 km | 45 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.6 seismic event took place near Saint Thomas, Jamaica on April 15, 2023 at 21:35 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 21:04:55 UTC | 2.3ml | 10km WSW of Corona, CA 33.828°, -117.657° | 3.9 km | 3 | - | - | ✓ Reviewed | USGS → |
April 15, 2023 brought a magnitude 2.3 earthquake 10km WSW of Corona, CA, logged at 21:04 UTC. 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. | ||||||||
2023-04-15 2023-04-15 21:03:06 UTC | 5.0mb | Southwest Indian Ridge -33.897°, 56.508° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.0 earthquake near Southwest Indian Ridge with origin time 21:03 UTC on April 15, 2023. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 20:55:23 UTC | 2.0ml | 54 km W of Happy Valley, Alaska 60.036°, -152.685° | 107.8 km | - | - | - | ✓ Reviewed | USGS → |
At 20:55 UTC on April 15, 2023, a magnitude 2.0 tremor occurred 54 km W of Happy Valley, Alaska. The event was offshore. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 20:52:53 UTC | 4.5mb | 19 km W of Mesetas, Colombia 3.366°, -74.216° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023 at 20:52 UTC, a magnitude 4.5 earthquake struck 19 km W of Mesetas, Colombia. The event was offshore. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 20:45:00 UTC | 2.4ml | 15 km ENE of Pedro Bay, Alaska 59.848°, -153.860° | 163.6 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.4 earthquake 15 km ENE of Pedro Bay, Alaska came in on April 15, 2023 at 20:45 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 20:16:53 UTC | 2.1ml | 221 km W of Adak, Alaska 51.933°, -179.850° | 79.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 221 km W of Adak, Alaska on April 15, 2023 at 20:16 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 19:48:43 UTC | 2.0ml | 184 km WSW of Adak, Alaska 51.379°, -179.184° | 22.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.0 earthquake 184 km WSW of Adak, Alaska at 19:48 UTC on April 15, 2023. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 19:35:24 UTC | 4.0mb | 35 km SE of Indé, Mexico 25.654°, -105.019° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 15, 2023 at 19:35 UTC, a magnitude 4.0 earthquake struck 35 km SE of Indé, Mexico. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-15 2023-04-15 19:06:59 UTC | 4.4mb | 264 km WNW of Ozernovskiy, Russia 52.174°, 152.815° | 444.1 km | - | - | - | ✓ Reviewed | USGS → |
At 19:06 UTC on April 15, 2023, a magnitude 4.4 tremor occurred 264 km WNW of Ozernovskiy, Russia. 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. | ||||||||
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 15, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.