Earthquakes on February 23, 2023
232
EARTHQUAKES on February 23, 2023
24-hour UTC period · USGS data
9 km deep · 33 people felt it
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
8
M4.0–4.9
38
M3.0–3.9
10
M2.0–2.9
35
M1.0–1.9
141
Activity Summary
232
Total earthquakes
~250
Daily average
Normal
Activity level
8
M5.0+ events
Geographic Breakdown
By US State
Significant Earthquakes (M4.5+)
6.9
65 km WSW of Murghob, Tajikistan
00:37 UTC · 9.0 km deep
Felt by 33
6.3
172 km N of Tobelo, Indonesia
20:02 UTC · 92.0 km deep
Felt by 7
5.5
156 km WSW of San Antonio, Chile
10:23 UTC · 10.0 km deep
Felt by 6
5.4
central East Pacific Rise
17:21 UTC · 10.0 km deep
5.3
50 km WNW of San Antonio de los Cobres, Argentina
13:01 UTC · 182.6 km deep
Felt by 2
5.1
79 km W of Murghob, Tajikistan
00:55 UTC · 10.0 km deep
5.0
54 km SE of Neiafu, Tonga
11:43 UTC · 42.1 km deep
Felt by 1
5.0
62 km WSW of Murghob, Tajikistan
01:35 UTC · 10.0 km deep
Earthquake Map — February 23, 2023
All Earthquakes — February 23, 2023
Showing 30 of 91 (filtered from 232)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-02-23 2023-02-23 23:34:36 UTC | 4.3mb | Off the coast of Atacama, Chile -26.705°, -71.311° | 21.6 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.3 earthquake near Off the coast of Atacama, Chile with origin time 23:34 UTC on February 23, 2023. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 23:30:18 UTC | 3.5ml | 23 km NNE of Sheridan, Wyoming 45.004°, -106.885° | 0.0 km | - | - | - | ✓ Reviewed | USGS → |
February 23, 2023 brought a magnitude 3.5 earthquake 23 km NNE of Sheridan, Wyoming, logged at 23:30 UTC. This very shallow event was close enough to the surface that even modest magnitudes can produce significant local shaking. See the M3.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 22:45:39 UTC | 2.8ml | 13 km W of Freedom, Idaho 43.003°, -111.206° | 5.0 km | 1 | - | - | ✓ Reviewed | USGS → |
This magnitude 2.8 event was detected 13 km W of Freedom, Idaho on February 23, 2023, with origin time 22:45 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 22:32:40 UTC | 2.6md | 10 km ENE of P?hala, Hawaii 19.239°, -155.381° | 33.2 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.6 earthquake 10 km ENE of P?hala, Hawaii with origin time 22:32 UTC on February 23, 2023. See the M2.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 22:25:39 UTC | 3.8mb | 23 km NNW of Suez, Egypt 30.157°, 32.396° | 10.0 km | 2 | - | - | ✓ Reviewed | USGS → |
This magnitude 3.8 event was detected 23 km NNW of Suez, Egypt on February 23, 2023, with origin time 22:25 UTC. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 22:11:57 UTC | 4.2mb | 61 km SSW of Nueva Concepción, Guatemala 13.689°, -91.523° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.2 earthquake 61 km SSW of Nueva Concepción, Guatemala came in on February 23, 2023 at 22:11 UTC. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 21:49:18 UTC | 4.1mb | 38 km WSW of Fukaura, Japan 40.563°, 139.489° | 193.8 km | - | - | - | ✓ Reviewed | USGS → |
On February 23, 2023 at 21:49 UTC, a magnitude 4.1 earthquake struck 38 km WSW of Fukaura, Japan. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 21:01:05 UTC | 3.3ml | 299 km WSW of Adak, Alaska 51.306°, 179.134° | 38.0 km | - | - | - | ✓ Reviewed | USGS → |
On February 23, 2023 at 21:01 UTC, a magnitude 3.3 earthquake struck 299 km WSW of Adak, Alaska. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 20:52:44 UTC | 2.1ml | 15km SE of Olancha, CA 36.199°, -117.868° | 1.4 km | 1 | - | - | ✓ Reviewed | USGS → |
February 23, 2023 brought a magnitude 2.1 earthquake 15km SE of Olancha, CA, logged at 20:52 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. | ||||||||
2023-02-23 2023-02-23 20:35:13 UTC | 2.1ml | 88 km NW of Karluk, Alaska 58.184°, -155.397° | 1.6 km | - | - | - | ✓ Reviewed | USGS → |
On February 23, 2023 at 20:35 UTC, a magnitude 2.1 earthquake struck 88 km NW of Karluk, Alaska. 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. | ||||||||
2023-02-23 2023-02-23 20:32:45 UTC | 2.2md | 9 km ENE of P?hala, Hawaii 19.241°, -155.395° | 30.9 km | - | - | - | ✓ Reviewed | USGS → |
At 20:32 UTC on February 23, 2023, a magnitude 2.2 tremor occurred 9 km ENE of P?hala, Hawaii. Coming 20 hours after a magnitude 2.5 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 20:02:47 UTC | 6.3mww | 172 km N of Tobelo, Indonesia 3.280°, 128.136° | 92.0 km | 7 | IV | green | ✓ Reviewed | USGS → |
A magnitude 6.3 earthquake was recorded 172 km N of Tobelo, Indonesia on February 23, 2023 at 20:02 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. The event was offshore. See the M6.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 19:43:30 UTC | 2.1ml | 31 km WNW of Ninilchik, Alaska 60.188°, -152.157° | 81.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 31 km WNW of Ninilchik, Alaska on February 23, 2023 at 19:43 UTC. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 19:42:34 UTC | 4.5mb | 245 km E of Levuka, Fiji -18.058°, -178.369° | 575.9 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.5 earthquake 245 km E of Levuka, Fiji with origin time 19:42 UTC on February 23, 2023. This is the deepest earthquake in the current dataset — a deep-focus event. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 19:40:04 UTC | 2.1ml | 61 km NE of King Cove, Alaska 55.497°, -161.728° | 124.5 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.1 earthquake 61 km NE of King Cove, Alaska with origin time 19:40 UTC on February 23, 2023. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 19:23:38 UTC | 4.3mb | 12 km E of Miyako, Japan 39.666°, 142.080° | 55.0 km | - | - | - | ✓ Reviewed | USGS → |
On February 23, 2023, worldwide seismic activity registered a magnitude 4.3 earthquake 12 km E of Miyako, Japan at 19:23 UTC. The event was offshore. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 18:46:08 UTC | 3.3ml | Andreanof Islands, Aleutian Islands, Alaska 51.154°, -179.094° | 30.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 3.3 earthquake was recorded near Andreanof Islands, Aleutian Islands, Alaska on February 23, 2023 at 18:46 UTC. It arrived roughly 1 hours after a larger magnitude 4.1 mainshock in the same 20 km area, placing it within the typical aftershock window. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 18:38:08 UTC | 4.1mb | 57 km SW of San Pedro de Atacama, Chile -23.202°, -68.661° | 103.7 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.1 earthquake was recorded 57 km SW of San Pedro de Atacama, Chile on February 23, 2023 at 18:38 UTC. The event was offshore. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 18:34:30 UTC | 2.3md | 10 km E of P?hala, Hawaii 19.208°, -155.376° | 29.9 km | - | - | - | ✓ Reviewed | USGS → |
On February 23, 2023, worldwide seismic activity registered a magnitude 2.3 earthquake 10 km E of P?hala, Hawaii at 18:34 UTC. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 18 hours earlier. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 17:27:33 UTC | 4.1mb | 192 km WSW of Adak, Alaska 51.104°, -179.120° | 35.0 km | - | II | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 4.1 earthquake 192 km WSW of Adak, Alaska with origin time 17:27 UTC on February 23, 2023. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 17:21:56 UTC | 5.4mww | central East Pacific Rise -6.056°, -106.514° | 10.0 km | - | - | green | ✓ Reviewed | USGS → |
On February 23, 2023, worldwide seismic activity registered a magnitude 5.4 earthquake near central East Pacific Rise at 17:21 UTC. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. See the M5.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 17:09:14 UTC | 2.4ml | 21 km N of Stanton, Texas 32.317°, -101.826° | 3.9 km | - | - | - | ✓ Reviewed | USGS → |
February 23, 2023 brought a magnitude 2.4 earthquake 21 km N of Stanton, Texas, logged at 17:09 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. | ||||||||
2023-02-23 2023-02-23 16:56:47 UTC | 4.6mb | South of Lombok, Indonesia -11.710°, 116.411° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 4.6 earthquake South of Lombok, Indonesia came in on February 23, 2023 at 16:56 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 16:30:22 UTC | 4.5mb | 275 km E of Levuka, Fiji -18.400°, -178.100° | 455.1 km | - | - | - | ✓ Reviewed | USGS → |
On February 23, 2023, worldwide seismic activity registered a magnitude 4.5 earthquake 275 km E of Levuka, Fiji at 16:30 UTC. This deep-focus earthquake originated far below the brittle crust, deep inside the mantle. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 16:16:22 UTC | 2.5ml | 21 km WNW of Susitna, Alaska 61.591°, -150.907° | 64.5 km | 2 | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.5 earthquake 21 km WNW of Susitna, Alaska at 16:16 UTC on February 23, 2023. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 16:14:27 UTC | 4.3mb | 235 km SSE of Sarangani, Philippines 3.562°, 126.528° | 50.6 km | - | - | - | ✓ Reviewed | USGS → |
At 16:14 UTC on February 23, 2023, a magnitude 4.3 tremor occurred 235 km SSE of Sarangani, Philippines. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 15:53:47 UTC | 4.9mww | 6 km SSE of Büyükçat, Turkey 36.059°, 36.095° | 10.0 km | 6 | - | - | ✓ Reviewed | USGS → |
A magnitude 4.9 seismic event took place 6 km SSE of Büyükçat, Turkey on February 23, 2023 at 15:53 UTC. See the M4.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 15:23:32 UTC | 2.3md | Island of Hawaii, Hawaii 19.204°, -155.481° | 31.8 km | - | - | - | ✓ Reviewed | USGS → |
On February 23, 2023 at 15:23 UTC, a magnitude 2.3 earthquake struck near Island of Hawaii, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.5 earthquake that occurred about 15 hours earlier. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 14:28:19 UTC | 2.5ml | Fox Islands, Aleutian Islands, Alaska 52.748°, -168.836° | 61.5 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.5 event was detected near Fox Islands, Aleutian Islands, Alaska on February 23, 2023, with origin time 14:28 UTC. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-02-23 2023-02-23 14:08:25 UTC | 3.1ml | 47 km SE of Perryville, Alaska 55.608°, -158.615° | 7.0 km | 1 | - | - | ✓ Reviewed | USGS → |
On February 23, 2023, worldwide seismic activity registered a magnitude 3.1 earthquake 47 km SE of Perryville, Alaska at 14:08 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 February 23, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.