EarthquakeModerate

M4.2 earthquake - 76 km ESE of Atka, Alaska

Name: M4.2 earthquake - 76 km ESE of Atka, Alaska
Start: 2021-04-07T05:19:43.889+00:00
Location: 76 km ESE of Atka, Alaska

2019 d ago · 7 Apr 2021, 05:19 UTC 76 km ESE of Atka, Alaska

What happened

A magnitude 4.2 earthquake struck 76 km ESE of Atka, Alaska on 7 Apr 2021, 05:19 UTC at a depth of 189 km.

Earthquakes of this size are classed as Light. Widely felt nearby; objects may shake or fall. Significant damage is unusual. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.

Timeline

First reported by USGS
17 Oct 2026, 10:11 UTC

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