8 Oct 2025, 01:33 UTC · Oct 7, 9:33 PM ET
M3.8 earthquake 91 km SSE of Nikolski, Alaska
A magnitude 3.8 earthquake struck 91 km SSE of Nikolski, Alaska at Oct 7, 9:33 PM ET, 29 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.8 mb |
| Time | 8 Oct 2025, 01:33 UTC |
| Location | 52.141°, -168.534° – 91 km SSE of Nikolski, Alaska |
| Depth | 28.7 km |
| Felt reports | 0 |
| USGS event | us6000rk85 |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 6.3 | 89 km SSW of Nikolski, Alaska · tsunami flag · PAGER green | Sep 3, 7:17 AM 43 d ago | 21 km | 3 reports |
| 6.0 | 96 km SW of Nikolski, Alaska · tsunami flag · PAGER green | Feb 23, 12:11 AM 236 d ago | 14 km | 10 reports |
| 5.5 | 92 km S of Nikolski, Alaska · tsunami flag · PAGER green | Mar 5, 2:25 PM 225 d ago | 17 km | 1 report |
| 5.5 | 93 km SW of Nikolski, Alaska · tsunami flag · PAGER green | Feb 23, 5:02 AM 235 d ago | 8 km | – |
| 5.4 | 105 km SSW of Nikolski, Alaska · PAGER green | Sep 3, 4:21 PM 43 d ago | 10 km | – |
| 5.3 | 108 km SSW of Nikolski, Alaska | Sep 3, 2:45 PM 43 d ago | 10 km | – |
| 5.3 | 83 km SSW of Nikolski, Alaska · tsunami flag | Sep 1, 2:44 AM 46 d ago | 37 km | 3 reports |
| 5.2 | 102 km SSW of Nikolski, Alaska · tsunami flag | Sep 3, 9:03 AM 43 d ago | 10 km | – |
| 5.2 | 88 km SSW of Nikolski, Alaska | Sep 2, 8:32 AM 44 d ago | 35 km | 1 report |
| 5.2 | 83 km SSW of Nikolski, Alaska | Sep 2, 1:14 AM 45 d ago | 35 km | – |
| 5.1 | 85 km SSW of Nikolski, Alaska | Sep 3, 7:24 AM 43 d ago | 46 km | – |
| 5.0 | 67 km SSW of Nikolski, Alaska | Sep 3, 4:22 PM 43 d ago | 42 km | – |
FAQ
About this earthquake
How strong was the 91 km SSE of Nikolski, Alaska earthquake?
Magnitude 3.8 (mb), minor – felt by people near the epicenter. Depth 29 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.
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.