20 Oct 2025, 23:52 UTC · Oct 20, 7:52 PM ET
M3.9 earthquake south of Alaska
A magnitude 3.9 earthquake struck south of Alaska at Oct 20, 7:52 PM ET, 10 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.9 mb |
| Time | 20 Oct 2025, 23:52 UTC |
| Location | 53.588°, -156.297° – south of Alaska |
| Depth | 10.0 km |
| Felt reports | 0 |
| Max. estimated intensity (MMI) | 0.0 |
| USGS event | us6000rid8 |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 3.6 | 234 km SE of Perryville, Alaska | Mar 7, 8:24 PM 223 d ago | 20 km | – |
| 3.5 | 262 km SSE of Perryville, Alaska | Sep 12, 12:27 AM 35 d ago | 23 km | – |
| 3.4 | south of Alaska | Jan 1, 11:37 AM 288 d ago | 10 km | – |
| 3.3 | 271 km SE of Sand Point, Alaska | Sep 27, 5:36 PM 19 d ago | 10 km | – |
| 3.3 | 264 km SSE of Perryville, Alaska | Sep 11, 3:14 PM 35 d ago | 10 km | – |
| 3.1 | 265 km SSE of Perryville, Alaska | Sep 12, 1:03 AM 35 d ago | 10 km | – |
| 2.9 | 249 km SSE of Perryville, Alaska | Sep 17, 5:27 PM 29 d ago | 10 km | – |
| 2.8 | 249 km SSE of Perryville, Alaska | Sep 19, 5:23 AM 27 d ago | 5 km | – |
| 2.8 | 249 km SSE of Perryville, Alaska | Sep 12, 3:09 PM 34 d ago | 10 km | – |
| 2.6 | 250 km SSE of Perryville, Alaska | Sep 18, 10:20 AM 28 d ago | 10 km | – |
| 2.6 | 253 km SSE of Perryville, Alaska | Sep 12, 2:27 AM 35 d ago | 10 km | – |
FAQ
About this earthquake
How strong was the south of Alaska earthquake?
Magnitude 3.9 (mb), minor – felt by people near the epicenter. Depth 10 km.
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.
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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.