EarthquakeStrong

M5.1 earthquake - 82 km SSW of Unalaska, Alaska

Name: M5.1 earthquake - 82 km SSW of Unalaska, Alaska
Start: 2022-02-21T02:33:04.577+00:00
Location: 82 km SSW of Unalaska, Alaska

1698 d ago · 21 Feb 2022, 02:33 UTC 82 km SSW of Unalaska, Alaska

A tsunami flag was raised for this event. This does not mean a tsunami occurred. Always follow official tsunami warning centres and local authorities.

What happened

A magnitude 5.1 earthquake struck 82 km SSW of Unalaska, Alaska on 21 Feb 2022, 02:33 UTC at a depth of 30 km.

Earthquakes of this size are classed as Moderate. Can damage poorly built structures close to the epicentre. This was a shallow earthquake, which tends to be felt more strongly at the surface.

Timeline

First reported by USGS
16 Oct 2026, 20:47 UTC

Community

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