EarthquakeModerate

M4.6 earthquake - 78 km SSE of Adak, Alaska

Name: M4.6 earthquake - 78 km SSE of Adak, Alaska
Start: 2025-03-21T15:12:39.367+00:00
Location: 78 km SSE of Adak, Alaska

575 d ago · 21 Mar 2025, 15:12 UTC 78 km SSE of Adak, Alaska

What happened

A magnitude 4.6 earthquake struck 78 km SSE of Adak, Alaska on 21 Mar 2025, 15:12 UTC at a depth of 35 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
18 Oct 2026, 02:35 UTC

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