EarthquakeModeratePAGER: green

M4.2 earthquake - 130 km ESE of Chignik, Alaska

Name: M4.2 earthquake - 130 km ESE of Chignik, Alaska
Start: 2021-07-31T18:04:17.083+00:00
Location: 130 km ESE of Chignik, Alaska

1904 d ago · 31 Jul 2021, 18:04 UTC 130 km ESE of Chignik, Alaska

What happened

A magnitude 4.2 earthquake struck 130 km ESE of Chignik, Alaska on 31 Jul 2021, 18:04 UTC at a depth of 39 km.

Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was a shallow earthquake, which tends to be felt more strongly at the surface.

Timeline

First reported by USGS
17 Oct 2026, 10:19 UTC

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