21 Nov 2025, 13:30 UTC · Nov 21, 8:30 AM ET
M3.7 earthquake 30 km S of Unalaska, Alaska
A magnitude 3.7 earthquake struck 30 km S of Unalaska, Alaska at Nov 21, 8:30 AM ET, 76 km deep, minor – felt by people near the epicenter.
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under 33–44–55–66+
| Magnitude | 3.7 mb |
| Time | 21 Nov 2025, 13:30 UTC |
| Location | 53.602°, -166.578° – 30 km S of Unalaska, Alaska |
| Depth | 75.8 km |
| Felt reports | 0 |
| USGS event | us7000rflz |
Within 100 km
Other earthquakes nearby this year
| Mag. | Where | When (ET) | Depth | Felt |
|---|---|---|---|---|
| 5.1 | 49 km S of Akutan, Alaska · tsunami flag | Oct 17, 11:48 AM 364 d ago | 85 km | 20 reports |
| 5.0 | 83 km SSW of Unalaska, Alaska | Jun 13, 6:38 AM 125 d ago | 53 km | 3 reports |
| 4.7 | 78 km SSE of Akutan, Alaska | May 4, 10:38 PM 165 d ago | 44 km | – |
| 4.5 | 30 km SSW of Unalaska, Alaska | Jul 12, 7:23 AM 96 d ago | 96 km | 15 reports |
| 4.3 | 70 km SSE of Akutan, Alaska | Aug 20, 9:11 PM 57 d ago | 50 km | – |
| 4.2 | 70 km SSE of Akutan, Alaska | Feb 6, 6:32 PM 252 d ago | 43 km | – |
| 4.0 | 55 km SE of Unalaska, Alaska | Jan 18, 9:06 PM 271 d ago | 55 km | – |
| 3.9 | 43 km S of Unalaska, Alaska | Jun 11, 12:53 PM 127 d ago | 92 km | – |
| 3.8 | 41 km S of Unalaska, Alaska | Jul 14, 10:56 AM 94 d ago | 83 km | 1 report |
| 3.8 | 105 km S of Unalaska, Alaska | Jan 24, 11:50 AM 265 d ago | 43 km | – |
| 3.7 | 97 km SSW of Unalaska, Alaska | Sep 16, 8:47 AM 30 d ago | 35 km | – |
| 3.7 | 62 km SSW of Unalaska, Alaska | May 25, 11:07 PM 144 d ago | 1 km | – |
FAQ
About this earthquake
How strong was the 30 km S of Unalaska, Alaska earthquake?
Magnitude 3.7 (mb), minor – felt by people near the epicenter. Depth 76 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.