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M5.5 earthquake - 140 km SE of Chignik, Alaska

Name: M5.5 earthquake - 140 km SE of Chignik, Alaska
Start: 2021-07-30T03:52:15.526+00:00
Location: 140 km SE of Chignik, Alaska

1904 d ago · 30 Jul 2021, 03:52 UTC 140 km SE of Chignik, Alaska

What happened

A magnitude 5.5 earthquake struck 140 km SE of Chignik, Alaska on 30 Jul 2021, 03:52 UTC at a depth of 43 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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