Earthquakes on October 22, 2023
278
EARTHQUAKES on October 22, 2023
24-hour UTC period · USGS data
LARGEST: M5.5 — south of the Fiji Islands
532 km deep
Normal activitycompared to daily average (~250/day)
Magnitude Breakdown
M5.0+
5
M4.0–4.9
23
M3.0–3.9
14
M2.0–2.9
42
M1.0–1.9
194
Activity Summary
278
Total earthquakes
~250
Daily average
Normal
Activity level
5
M5.0+ events
Significant Earthquakes (M4.5+)
5.5
south of the Fiji Islands
19:31 UTC · 532.0 km deep
5.2
36 km NE of Bharatpur, Nepal
01:54 UTC · 25.7 km deep
Felt by 87
5.1
Indian Ocean Triple Junction
04:45 UTC · 10.0 km deep
5.0
70 km SW of Laojunmiao, China
15:14 UTC · 10.0 km deep
5.0
South Sandwich Islands region
03:03 UTC · 31.6 km deep
4.9
24 km SSW of Copala, Mexico
02:05 UTC · 10.0 km deep
Felt by 2
4.8
53 km SE of Huanggang, China
19:20 UTC · 10.0 km deep
Felt by 11
4.7
61 km ESE of Teluk Dalam, Indonesia
14:23 UTC · 36.2 km deep
Earthquake Map — October 22, 2023
All Earthquakes — October 22, 2023
Showing 30 of 84 (filtered from 278)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
| Time ↓ | Mag ↕ | Location ↕ | Depth ↕ | Felt ↕ | MMI | Alert | Status | Details |
|---|---|---|---|---|---|---|---|---|
2023-10-22 2023-10-22 23:52:51 UTC | 2.3md | 2 km SSE of Prattville, CA 40.194°, -121.151° | 0.4 km | - | - | - | ✓ Reviewed | USGS → |
At 23:52 UTC on October 22, 2023, a magnitude 2.3 tremor occurred 2 km SSE of Prattville, CA. 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. | ||||||||
2023-10-22 2023-10-22 23:25:12 UTC | 2.8ml(texnet) | 38 km W of Mentone, Texas 31.716°, -104.004° | 5.6 km | - | - | - | ✓ Reviewed | USGS → |
On October 22, 2023, worldwide seismic activity registered a magnitude 2.8 earthquake 38 km W of Mentone, Texas at 23:25 UTC. The event was offshore. See the M2.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 23:11:14 UTC | 4.2mb | 0 km SW of Hasaki, Japan 35.729°, 140.827° | 47.6 km | - | - | - | ✓ Reviewed | USGS → |
On October 22, 2023 at 23:11 UTC, a magnitude 4.2 earthquake struck 0 km SW of Hasaki, Japan. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 23:08:08 UTC | 2.3ml(texnet) | 38 km W of Mentone, Texas 31.715°, -104.008° | 5.4 km | - | - | - | ✓ Reviewed | USGS → |
This magnitude 2.3 event was detected 38 km W of Mentone, Texas on October 22, 2023, with origin time 23:08 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 23:05:17 UTC | 2.5ml | 98 km W of Dutch Harbor, Alaska 53.989°, -168.037° | 13.3 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.5 seismic event took place 98 km W of Dutch Harbor, Alaska on October 22, 2023 at 23:05 UTC. It arrived roughly 9 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 M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 22:58:36 UTC | 3.9mb | 298 km WSW of Adak, Alaska 51.071°, 179.269° | 35.0 km | - | - | - | ✓ Reviewed | USGS → |
October 22, 2023 brought a magnitude 3.9 earthquake 298 km WSW of Adak, Alaska, logged at 22:58 UTC. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 22:54:53 UTC | 2.9ml | Rat Islands, Aleutian Islands, Alaska 51.097°, 179.177° | 27.3 km | - | - | - | ✓ Reviewed | USGS → |
Seismographs logged a magnitude 2.9 earthquake near Rat Islands, Aleutian Islands, Alaska with origin time 22:54 UTC on October 22, 2023. It arrived roughly 1 hours after a larger magnitude 3.3 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. | ||||||||
2023-10-22 2023-10-22 22:45:45 UTC | 3.3ml | Rat Islands, Aleutian Islands, Alaska 51.042°, 179.175° | 23.7 km | - | - | - | ✓ Reviewed | USGS → |
At 22:45 UTC on October 22, 2023, a magnitude 3.3 tremor occurred near Rat Islands, Aleutian Islands, Alaska. See the M3.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 22:45:11 UTC | 2.3ml(texnet) | 38 km W of Mentone, Texas 31.714°, -104.010° | 5.1 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.3 earthquake 38 km W of Mentone, Texas came in on October 22, 2023 at 22:45 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 22:43:06 UTC | 2.7ml | 98 km W of Dutch Harbor, Alaska 53.988°, -168.040° | 12.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.7 earthquake 98 km W of Dutch Harbor, Alaska at 22:43 UTC on October 22, 2023. It arrived roughly 8 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 M2.7 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 22:38:02 UTC | 2.2ml(texnet) | western Texas 31.713°, -104.008° | 5.7 km | - | - | - | ✓ Reviewed | USGS → |
On October 22, 2023, worldwide seismic activity registered a magnitude 2.2 earthquake near western Texas at 22:38 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 22:29:56 UTC | 4.5mb | 83 km SSW of Panguna, Papua New Guinea -7.050°, 155.312° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
October 22, 2023 brought a magnitude 4.5 earthquake 83 km SSW of Panguna, Papua New Guinea, logged at 22:29 UTC. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 22:22:19 UTC | 4.3mb | 48 km WNW of Abra Pampa, Argentina -22.513°, -66.116° | 259.5 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 4.3 earthquake 48 km WNW of Abra Pampa, Argentina at 22:22 UTC on October 22, 2023. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 21:56:51 UTC | 2.2ml(texnet) | western Texas 31.666°, -104.184° | 4.9 km | - | - | - | ✓ Reviewed | USGS → |
At 21:56 UTC on October 22, 2023, a magnitude 2.2 tremor occurred near western Texas. 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. | ||||||||
2023-10-22 2023-10-22 21:51:01 UTC | 2.0ml | 87 km WNW of Karluk, Alaska 57.903°, -155.785° | 8.7 km | - | - | - | ✓ Reviewed | USGS → |
Reports of a magnitude 2.0 earthquake 87 km WNW of Karluk, Alaska came in on October 22, 2023 at 21:51 UTC. See the M2.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 21:49:26 UTC | 2.3ml | 8 km SSE of McCall, Idaho 44.838°, -116.070° | 4.2 km | - | - | - | ✓ Reviewed | USGS → |
The USGS recorded this magnitude 2.3 earthquake 8 km SSE of McCall, Idaho at 21:49 UTC on October 22, 2023. This event falls inside the aftershock decay of a nearby magnitude 2.4 earthquake that occurred about 1 hours earlier. 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. | ||||||||
2023-10-22 2023-10-22 21:44:13 UTC | 2.4ml | 10 km NNE of Donnelly, Idaho 44.820°, -116.039° | 12.8 km | 1 | - | - | ✓ Reviewed | USGS → |
A magnitude 2.4 earthquake was recorded 10 km NNE of Donnelly, Idaho on October 22, 2023 at 21:44 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 21:38:12 UTC | 3.0ml | Rat Islands, Aleutian Islands, Alaska 51.109°, 179.181° | 30.7 km | - | - | - | ✓ Reviewed | USGS → |
October 22, 2023 brought a magnitude 3.0 earthquake near Rat Islands, Aleutian Islands, Alaska, logged at 21:38 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 20:53:35 UTC | 3.0ml | 97 km W of Dutch Harbor, Alaska 53.986°, -168.018° | 12.4 km | - | - | - | ✓ Reviewed | USGS → |
On October 22, 2023 at 20:53 UTC, a magnitude 3.0 earthquake struck 97 km W of Dutch Harbor, Alaska. This event falls inside the aftershock decay of a nearby magnitude 3.1 earthquake that occurred about 7 hours earlier. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 20:25:29 UTC | 2.1ml | Fox Islands, Aleutian Islands, Alaska 53.909°, -167.932° | 5.9 km | - | - | - | ✓ Reviewed | USGS → |
At 20:25 UTC on October 22, 2023, a magnitude 2.1 tremor occurred near Fox Islands, Aleutian Islands, Alaska. Coming 6 hours after a magnitude 3.1 earthquake in the immediate vicinity, it is most likely an aftershock of that larger rupture. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 20:14:00 UTC | 3.8ml | 59 km W of Nanwalek, Alaska 59.334°, -152.958° | 80.6 km | 4 | II | - | ✓ Reviewed | USGS → |
On October 22, 2023 at 20:14 UTC, a magnitude 3.8 earthquake struck 59 km W of Nanwalek, Alaska. The event was offshore. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 20:09:59 UTC | 2.3ml | 62 km SE of Adak, Alaska 51.505°, -175.955° | 29.0 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.3 seismic event took place 62 km SE of Adak, Alaska on October 22, 2023 at 20:09 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 20:08:55 UTC | 4.1mb | 51 km ENE of Bandar-e Genāveh, Iran 29.826°, 50.966° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
At 20:08 UTC on October 22, 2023, a magnitude 4.1 tremor occurred 51 km ENE of Bandar-e Genāveh, Iran. See the M4.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 19:31:42 UTC | 5.5mww | south of the Fiji Islands -23.694°, 179.358° | 532.0 km | - | I | green | ✓ Reviewed | USGS → |
On October 22, 2023 at 19:31 UTC, a magnitude 5.5 earthquake struck south of the Fiji Islands. The USGS PAGER system assigned a green alert level for this event, signalling no significant casualties or damage expected. It is the largest earthquake currently listed for worldwide seismic activity on October 22, 2023. See the M5.5 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 19:20:22 UTC | 4.8mww | 53 km SE of Huanggang, China 23.354°, 117.391° | 10.0 km | 11 | - | - | ✓ Reviewed | USGS → |
This magnitude 4.8 event was detected 53 km SE of Huanggang, China on October 22, 2023, with origin time 19:20 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 18:40:51 UTC | 2.0ml(texnet) | 54 km NW of Toyah, Texas 31.669°, -104.184° | 6.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.0 seismic event took place 54 km NW of Toyah, Texas on October 22, 2023 at 18:40 UTC. It arrived roughly 4 hours after a larger magnitude 2.2 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. | ||||||||
2023-10-22 2023-10-22 18:13:02 UTC | 2.1ml | 17 km E of Perryville, Alaska 55.907°, -158.865° | 70.1 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.1 earthquake was recorded 17 km E of Perryville, Alaska on October 22, 2023 at 18:13 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data. | ||||||||
2023-10-22 2023-10-22 17:03:34 UTC | 2.1ml | 13 km SW of Volcano, Hawaii 19.340°, -155.308° | 3.5 km | - | - | - | ✓ Reviewed | USGS → |
On October 22, 2023 at 17:03 UTC, a magnitude 2.1 earthquake struck 13 km SW of Volcano, Hawaii. This event falls inside the aftershock decay of a nearby magnitude 2.3 earthquake that occurred about 17 hours earlier. 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. | ||||||||
2023-10-22 2023-10-22 15:24:38 UTC | 2.2ml | 13 km SSW of Volcano, Hawaii 19.339°, -155.307° | 3.7 km | - | - | - | ✓ Reviewed | USGS → |
A magnitude 2.2 seismic event took place 13 km SSW of Volcano, Hawaii on October 22, 2023 at 15:24 UTC. Coming 15 hours after a magnitude 2.3 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. | ||||||||
2023-10-22 2023-10-22 15:14:12 UTC | 5.0mb | 70 km SW of Laojunmiao, China 39.316°, 97.249° | 10.0 km | - | - | - | ✓ Reviewed | USGS → |
On October 22, 2023, worldwide seismic activity registered a magnitude 5.0 earthquake 70 km SW of Laojunmiao, China at 15:14 UTC. The event was offshore. See the M5.0 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 October 22, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.