23 Oct 2025, 13:29 UTC · Oct 23, 9:29 AM ET
M3.5 earthquake 237 km SE of Chiniak, Alaska
A magnitude 3.5 earthquake struck 237 km SE of Chiniak, Alaska at Oct 23, 9:29 AM ET, 14 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.5 ml |
| Time | 23 Oct 2025, 13:29 UTC |
| Location | 56.188°, -149.379° – 237 km SE of Chiniak, Alaska |
| Depth | 14.1 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 1.0 |
| USGS event | us6000rivf |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.0 | 258 km ESE of Chiniak, Alaska · tsunami flag | Dec 16, 6:35 PM 304 d ago | 10 km | 1 report |
| 3.9 | 262 km SE of Chiniak, Alaska | Dec 31, 7:46 PM 289 d ago | 10 km | – |
| 3.7 | 240 km SE of Chiniak, Alaska | Sep 8, 2:20 PM 38 d ago | 10 km | – |
| 3.7 | 284 km SE of Chiniak, Alaska | Jun 16, 10:51 PM 122 d ago | 10 km | – |
| 3.7 | 257 km SE of Chiniak, Alaska | Jan 6, 7:46 AM 283 d ago | 10 km | – |
| 3.5 | 227 km SE of Chiniak, Alaska | Sep 27, 1:27 AM 20 d ago | 10 km | – |
| 3.5 | 263 km SE of Chiniak, Alaska | Feb 25, 3:41 AM 233 d ago | 5 km | – |
| 3.4 | 244 km ESE of Chiniak, Alaska | Sep 27, 3:02 PM 19 d ago | 5 km | – |
| 3.4 | 252 km SE of Chiniak, Alaska | May 29, 11:33 AM 140 d ago | 10 km | – |
| 3.4 | 213 km SE of Chiniak, Alaska | Mar 9, 9:11 AM 221 d ago | 5 km | – |
| 3.3 | 221 km SE of Chiniak, Alaska | Sep 8, 2:19 PM 38 d ago | 10 km | – |
| 3.3 | 228 km SE of Chiniak, Alaska | Jul 1, 2:19 PM 107 d ago | 10 km | – |
FAQ
About this earthquake
How strong was the 237 km SE of Chiniak, Alaska earthquake?
Magnitude 3.5 (ml), minor – felt by people near the epicenter. Depth 14 km. Strongest estimated shaking: intensity 1.0 on the Modified Mercalli scale.
Was it felt?
No felt reports have been submitted to the USGS so far.
Were there aftershocks?
No earthquakes within 100 km have followed so far in our records.
Earthquakes
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Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.