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Earthquakes on September 22, 2023

302
EARTHQUAKES on September 22, 2023
24-hour UTC period · USGS data
147 km deep · 20 people felt it
Elevated activity
compared to daily average (~250/day)

Magnitude Breakdown

M5.0+
5
M4.0–4.9
48
M3.0–3.9
10
M2.0–2.9
55
M1.0–1.9
184

Activity Summary

302
Total earthquakes
~250
Daily average
Elevated
Activity level
5
M5.0+ events

Earthquake Map — September 22, 2023

Map showing earthquake epicenter at 20.00°, 0.00°

All Earthquakes — September 22, 2023

Showing 30 of 118 (filtered from 302)
(Filtered to M2.0+. Change the magnitude filter to see smaller events.)
Time Mag Location Depth Felt MMIAlertStatusDetails
2023-09-22
2023-09-22 23:43:05 UTC
2.1ml
71 km E of Atka, Alaska
52.300°, -173.173°
11.2 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.1 earthquake 71 km E of Atka, Alaska at 23:43 UTC on September 22, 2023. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 23:31:24 UTC
4.0mb
98 km NE of Mombetsu, Japan
44.928°, 144.300°
246.1 km---✓ ReviewedUSGS →
September 22, 2023 brought a magnitude 4.0 earthquake 98 km NE of Mombetsu, Japan, logged at 23:31 UTC. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 23:26:11 UTC
4.6mb
southern East Pacific Rise
-32.460°, -112.195°
10.0 km---✓ ReviewedUSGS →
September 22, 2023 brought a magnitude 4.6 earthquake near southern East Pacific Rise, logged at 23:26 UTC. See the M4.6 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 23:14:03 UTC
2.2ml
19 km S of Searles Valley, CA
35.596°, -117.431°
3.9 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.2 earthquake 19 km S of Searles Valley, CA at 23:14 UTC on September 22, 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.
2023-09-22
2023-09-22 22:49:45 UTC
2.9ml
Rat Islands, Aleutian Islands, Alaska
50.355°, 179.522°
10.0 km---✓ ReviewedUSGS →
At 22:49 UTC on September 22, 2023, a magnitude 2.9 tremor occurred near Rat Islands, Aleutian Islands, Alaska. See the M2.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 22:48:15 UTC
4.3mb
northern Colombia
6.867°, -73.051°
146.3 km---✓ ReviewedUSGS →
September 22, 2023 brought a magnitude 4.3 earthquake near northern Colombia, logged at 22:48 UTC. See the M4.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 22:13:50 UTC
4.8mb
46 km SW of Neiafu, Tonga
-18.927°, -174.315°
132.0 km1--✓ ReviewedUSGS →
Reports of a magnitude 4.8 earthquake 46 km SW of Neiafu, Tonga came in on September 22, 2023 at 22:13 UTC. The event was offshore. See the M4.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 22:03:14 UTC
3.0ml
60 km WNW of Ninilchik, Alaska
60.332°, -152.596°
115.7 km---✓ ReviewedUSGS →
A magnitude 3.0 earthquake was recorded 60 km WNW of Ninilchik, Alaska on September 22, 2023 at 22:03 UTC. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 21:59:54 UTC
2.3ml
119 km W of Adak, Alaska
51.881°, -178.366°
134.0 km---✓ ReviewedUSGS →
A magnitude 2.3 seismic event took place 119 km W of Adak, Alaska on September 22, 2023 at 21:59 UTC. The event was offshore. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 21:57:54 UTC
2.5ml
125 km S of Atka, Alaska
51.076°, -173.951°
10.0 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.5 earthquake 125 km S of Atka, Alaska at 21:57 UTC on September 22, 2023. The event was offshore. See the M2.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 21:54:59 UTC
3.4ml
22 km NW of Akhiok, Alaska
57.066°, -154.475°
29.0 km---✓ ReviewedUSGS →
Reports of a magnitude 3.4 earthquake 22 km NW of Akhiok, Alaska came in on September 22, 2023 at 21:54 UTC. The event was offshore. See the M3.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 21:29:43 UTC
4.0mb
133 km E of Hicks Bay, New Zealand
-37.466°, 179.797°
10.0 km---✓ ReviewedUSGS →
On September 22, 2023 at 21:29 UTC, a magnitude 4.0 earthquake struck 133 km E of Hicks Bay, New Zealand. The event was offshore. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 21:09:18 UTC
2.1ml(texnet)
55 km S of Whites City, New Mexico
31.678°, -104.412°
5.2 km---✓ ReviewedUSGS →
This magnitude 2.1 event was detected 55 km S of Whites City, New Mexico on September 22, 2023, with origin time 21:09 UTC. The event was offshore. See the M2.1 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:58:44 UTC
2.2ml
2 km ESE of Madison, Ohio
41.761°, -81.024°
5.0 km6--✓ ReviewedUSGS →
Reports of a magnitude 2.2 earthquake 2 km ESE of Madison, Ohio came in on September 22, 2023 at 20:58 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:47:01 UTC
4.4mb
62 km WSW of Challapata, Bolivia
-19.169°, -67.298°
210.4 km---✓ ReviewedUSGS →
On September 22, 2023, worldwide seismic activity registered a magnitude 4.4 earthquake 62 km WSW of Challapata, Bolivia at 20:47 UTC. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:38:41 UTC
2.3ml
36 km SSE of Campo, CA
32.299°, -116.338°
17.5 km4--✓ ReviewedUSGS →
Seismographs logged a magnitude 2.3 earthquake 36 km SSE of Campo, CA with origin time 20:38 UTC on September 22, 2023. See the M2.3 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:31:21 UTC
2.2ml
36 km WSW of Petersville, Alaska
62.364°, -151.421°
82.2 km---✓ ReviewedUSGS →
A magnitude 2.2 seismic event took place 36 km WSW of Petersville, Alaska on September 22, 2023 at 20:31 UTC. See the M2.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:19:47 UTC
4.4mb
Antofagasta, Chile
-22.262°, -68.652°
122.0 km---✓ ReviewedUSGS →
At 20:19 UTC on September 22, 2023, a magnitude 4.4 tremor occurred near Antofagasta, Chile. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:15:58 UTC
3.9ml(texnet)
8 km NE of Hermleigh, Texas
32.685°, -100.689°
6.8 km22V-✓ ReviewedUSGS →
On September 22, 2023, worldwide seismic activity registered a magnitude 3.9 earthquake 8 km NE of Hermleigh, Texas at 20:15 UTC. The event was offshore. See the M3.9 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:12:23 UTC
2.4ml
10 km S of Wilson, Oklahoma
34.072°, -97.432°
6.6 km---✓ ReviewedUSGS →
At 20:12 UTC on September 22, 2023, a magnitude 2.4 tremor occurred 10 km S of Wilson, Oklahoma. It arrived roughly 1 hours after a larger magnitude 2.4 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 20:06:30 UTC
3.8mb
184 km WSW of Adak, Alaska
51.337°, -179.160°
60.8 km-III-✓ ReviewedUSGS →
At 20:06 UTC on September 22, 2023, a magnitude 3.8 tremor occurred 184 km WSW of Adak, Alaska. See the M3.8 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 19:56:57 UTC
4.4mb
Mid-Indian Ridge
-25.704°, 70.346°
10.0 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.4 earthquake near Mid-Indian Ridge at 19:56 UTC on September 22, 2023. This event falls inside the aftershock decay of a nearby magnitude 4.6 earthquake that occurred about 4 hours earlier. See the M4.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 19:31:28 UTC
4.2mb
40 km SW of Turt, Mongolia
51.246°, 100.254°
10.2 km---✓ ReviewedUSGS →
On September 22, 2023, worldwide seismic activity registered a magnitude 4.2 earthquake 40 km SW of Turt, Mongolia at 19:31 UTC. The event was offshore. See the M4.2 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 19:24:43 UTC
2.4ml
Oklahoma
34.072°, -97.441°
12.2 km---✓ ReviewedUSGS →
A magnitude 2.4 seismic event took place near Oklahoma on September 22, 2023 at 19:24 UTC. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 19:13:40 UTC
4.0mb
119 km WNW of Suttsu, Japan
43.346°, 138.968°
218.2 km---✓ ReviewedUSGS →
A magnitude 4.0 earthquake was recorded 119 km WNW of Suttsu, Japan on September 22, 2023 at 19:13 UTC. See the M4.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 19:09:13 UTC
2.0ml
8 km NW of Prague, Oklahoma
35.536°, -96.758°
7.9 km---✓ ReviewedUSGS →
At 19:09 UTC on September 22, 2023, a magnitude 2.0 tremor occurred 8 km NW of Prague, Oklahoma. It arrived roughly 8 hours after a larger magnitude 3.2 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.
2023-09-22
2023-09-22 18:53:20 UTC
2.4ml
8 km NW of Prague, Oklahoma
35.539°, -96.754°
7.9 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 2.4 earthquake 8 km NW of Prague, Oklahoma at 18:53 UTC on September 22, 2023. This event falls inside the aftershock decay of a nearby magnitude 3.2 earthquake that occurred about 8 hours earlier. The event was offshore. See the M2.4 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 18:51:55 UTC
3.0ml
8 km NW of Prague, Oklahoma
35.539°, -96.753°
7.9 km1--✓ ReviewedUSGS →
On September 22, 2023, worldwide seismic activity registered a magnitude 3.0 earthquake 8 km NW of Prague, Oklahoma at 18:51 UTC. It arrived roughly 8 hours after a larger magnitude 3.2 mainshock in the same 20 km area, placing it within the typical aftershock window. The event was offshore. See the M3.0 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 18:29:08 UTC
4.5mb
Indian Ocean Triple Junction
-26.034°, 70.457°
10.0 km---✓ ReviewedUSGS →
The USGS recorded this magnitude 4.5 earthquake near Indian Ocean Triple Junction at 18:29 UTC on September 22, 2023. See the M4.5 event page for the full report, ShakeMap, and citizen-reported intensity data.
2023-09-22
2023-09-22 18:25:35 UTC
2.1ml(texnet)
25 km E of Forsan, Texas
32.130°, -101.092°
8.7 km---✓ ReviewedUSGS →
Reports of a magnitude 2.1 earthquake 25 km E of Forsan, Texas came in on September 22, 2023 at 18:25 UTC. The event was offshore. See the M2.1 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 September 22, 2023. Data includes all events of magnitude 1.0 or greater. Past earthquake data is considered final after review by USGS seismologists.