Earthquakes on April 3, 2023
268
EARTHQUAKES on April 3, 2023
24-hour UTC period · USGS data
101 km deep · 8 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
9
M4.0–4.9
27
M3.0–3.9
13
M2.0–2.9
43
M1.0–1.9
176
Activity Summary
268
Total earthquakes
~250
Daily average
Normal
Activity level
9
M5.0+ events
Geographic Breakdown
By US State
Top Countries (International)
Significant Earthquakes (M4.5+)
6.5
23 km SSE of Vilyuchinsk, Russia
03:06 UTC · 101.0 km deep
Felt by 8
6.1
77 km SW of Padangsidempuan, Indonesia
14:59 UTC · 84.0 km deep
Felt by 20
5.5
Owen Fracture Zone region
21:44 UTC · 10.0 km deep
5.5
Owen Fracture Zone region
21:34 UTC · 10.0 km deep
5.3
Owen Fracture Zone region
22:00 UTC · 10.0 km deep
5.2
South Sandwich Islands region
04:40 UTC · 20.4 km deep
5.1
70 km SW of Atocha, Bolivia
21:46 UTC · 217.6 km deep
5.0
122 km NNW of Pante Makasar, Timor Leste
20:50 UTC · 181.5 km deep
Earthquake Map — April 3, 2023
All Earthquakes — April 3, 2023
Showing 30 of 92 (filtered from 268)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-04-03 2023-04-03 23:46:08 UTC | 2.1ml | 51 km SSW of Denio, Nevada 41.542°, -118.797° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.1 event was detected 51 km SSW of Denio, Nevada on April 3, 2023, with origin time 23:46 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. | ||||||||
2023-04-03 2023-04-03 23:14:36 UTC | 2.1md | 6km W of Cobb, CA 38.825°, -122.790° | 1.3 km | - | - | - | ✓ Reviewed | USGS → |
On April 3, 2023, worldwide seismic activity registered a magnitude 2.1 earthquake 6km W of Cobb, CA at 23:14 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. | ||||||||
2023-04-03 2023-04-03 22:45:45 UTC | 4.6mb | east of the South Sandwich Islands -60.000°, -18.775° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 3, 2023 at 22:45 UTC, a magnitude 4.6 earthquake struck east of the South Sandwich Islands. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 22:34:44 UTC | 2.3md | 9 km ENE of P?hala, Hawaii 19.244°, -155.398° | 32.2 km | - | - | - | Auto | USGS → |
On April 3, 2023 at 22:34 UTC, a magnitude 2.3 earthquake struck 9 km ENE of P?hala, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 9 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 22:25:14 UTC | 2.1ml | 97 km W of Adak, Alaska 51.853°, -178.050° | 3.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.1 earthquake 97 km W of Adak, Alaska came in on April 3, 2023 at 22:25 UTC. Coming 3 hours after a magnitude 2.7 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 M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 22:15:15 UTC | 3.2ml | 58 km N of Provideniya, Russia 64.941°, -173.437° | 24.4 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 3.2 earthquake 58 km N of Provideniya, Russia at 22:15 UTC on April 3, 2023. It arrived roughly 12 hours after a larger magnitude 3.3 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 22:05:00 UTC | 2.5ml | 95 km E of Chignik, Alaska 56.285°, -156.863° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
On April 3, 2023 at 22:05 UTC, a magnitude 2.5 earthquake struck 95 km E of Chignik, Alaska. It arrived roughly 3 hours after a larger magnitude 3.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 22:00:22 UTC | 5.3mww | Owen Fracture Zone region 14.545°, 56.400° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 22:00 UTC on April 3, 2023, a magnitude 5.3 tremor occurred in the Owen Fracture Zone region. This event falls inside the aftershock decay of a nearby magnitude 5.5 earthquake that occurred about 1 hours earlier. See the M5.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:48:09 UTC | 4.0mb | 89 km ESE of Caburan, Philippines 5.474°, 126.321° | 108.5 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 4.0 earthquake was recorded 89 km ESE of Caburan, Philippines on April 3, 2023 at 21:48 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:47:03 UTC | 4.8mb | Owen Fracture Zone region 14.416°, 56.422° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
April 3, 2023 brought a magnitude 4.8 earthquake in the Owen Fracture Zone region, logged at 21:47 UTC. It arrived roughly 1 hours after a larger magnitude 5.5 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:46:42 UTC | 5.1mww | 70 km SW of Atocha, Bolivia -21.381°, -66.705° | 217.6 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 5.1 event was detected 70 km SW of Atocha, Bolivia on April 3, 2023, with origin time 21:46 UTC. The event was offshore. See the M5.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:44:13 UTC | 5.5mww | Owen Fracture Zone region 14.389°, 56.326° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 5.5 earthquake in the Owen Fracture Zone region with origin time 21:44 UTC on April 3, 2023. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:34:45 UTC | 5.5mww | Owen Fracture Zone region 14.482°, 56.299° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
On April 3, 2023, worldwide seismic activity registered a magnitude 5.5 earthquake in the Owen Fracture Zone region at 21:34 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:27:59 UTC | 2.1md | 3 km NNW of Guayanilla, Puerto Rico 18.044°, -66.805° | 15.1 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.1 earthquake 3 km NNW of Guayanilla, Puerto Rico at 21:27 UTC on April 3, 2023. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:11:52 UTC | 2.6ml | 54 km S of Whites City, New Mexico 31.687°, -104.429° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
At 21:11 UTC on April 3, 2023, a magnitude 2.6 tremor occurred 54 km S of Whites City, New Mexico. The event was offshore. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 21:11:36 UTC | 2.0ml | 106 km ENE of Chignik, Alaska 56.574°, -156.761° | 20.8 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.0 event was detected 106 km ENE of Chignik, Alaska on April 3, 2023, with origin time 21:11 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 20:59:22 UTC | 2.4ml | 30 km NW of Toyah, Texas 31.515°, -104.006° | 9.7 km | - | - | - | ✓ Reviewed | USGS → |
At 20:59 UTC on April 3, 2023, a magnitude 2.4 tremor occurred 30 km NW of Toyah, Texas. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 20:50:32 UTC | 5.0mb | 122 km NNW of Pante Makasar, Timor Leste -8.220°, 123.857° | 181.5 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 5.0 earthquake 122 km NNW of Pante Makasar, Timor Leste came in on April 3, 2023 at 20:50 UTC. See the M5.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 19:50:50 UTC | 2.7ml | 98 km W of Adak, Alaska 51.841°, -178.059° | 3.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.7 earthquake 98 km W of Adak, Alaska with origin time 19:50 UTC on April 3, 2023. 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 19:28:07 UTC | 2.4ml | 14 km NNW of Stanley, Idaho 44.330°, -115.026° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.4 earthquake 14 km NNW of Stanley, Idaho at 19:28 UTC on April 3, 2023. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 19:20:19 UTC | 2.2ml | 97 km E of Chignik, Alaska 56.254°, -156.830° | 3.2 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 earthquake was recorded 97 km E of Chignik, Alaska on April 3, 2023 at 19:20 UTC. Coming 1 hours after a magnitude 3.4 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 M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 19:01:48 UTC | 3.4ml | 102 km E of Chignik, Alaska 56.252°, -156.750° | 1.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.4 earthquake was recorded 102 km E of Chignik, Alaska on April 3, 2023 at 19:01 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 18:47:51 UTC | 2.8ml | 32 km SSE of Adak, Alaska 51.597°, -176.473° | 63.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.8 earthquake was recorded 32 km SSE of Adak, Alaska on April 3, 2023 at 18:47 UTC. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 18:26:46 UTC | 4.4mb | 28 km S of Amlapura, Indonesia -8.708°, 115.648° | 108.1 km | 47 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.4 event was detected 28 km S of Amlapura, Indonesia on April 3, 2023, with origin time 18:26 UTC. The event was offshore. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 18:11:47 UTC | 2.5md | 2 km WSW of La Parguera, Puerto Rico 17.963°, -67.070° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
April 3, 2023 brought a magnitude 2.5 earthquake 2 km WSW of La Parguera, Puerto Rico, logged at 18:11 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 18:09:30 UTC | 2.1ml | Colorado 37.304°, -104.463° | 5.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 seismic event took place near Colorado on April 3, 2023 at 18:09 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 18:03:26 UTC | 3.4ml | 16 km ENE of Wright, Wyoming 43.803°, -105.297° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 3.4 earthquake 16 km ENE of Wright, Wyoming with origin time 18:03 UTC on April 3, 2023. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 17:47:41 UTC | 2.2ml | 71 km E of Cantwell, Alaska 63.471°, -147.534° | 0.1 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.2 earthquake 71 km E of Cantwell, Alaska with origin time 17:47 UTC on April 3, 2023. 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. | ||||||||
2023-04-03 2023-04-03 17:41:17 UTC | 2.1ml | 40 km NW of Toyah, Texas 31.569°, -104.098° | 6.6 km | - | - | - | ✓ Reviewed | USGS → |
April 3, 2023 brought a magnitude 2.1 earthquake 40 km NW of Toyah, Texas, logged at 17:41 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.2 earthquake that occurred about 10 hours earlier. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-04-03 2023-04-03 17:32:19 UTC | 2.5ml | Alaska Peninsula 56.299°, -156.838° | 0.4 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 earthquake was recorded near Alaska Peninsula on April 3, 2023 at 17:32 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M2.5 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 3, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.