EarthquakeModerate

M4.0 earthquake - Rat Islands, Aleutian Islands, Alaska

Name: M4.0 earthquake - Rat Islands, Aleutian Islands, Alaska
Start: 2023-04-30T04:48:14.976+00:00
Location: Rat Islands, Aleutian Islands, Alaska

1267 d ago · 30 Apr 2023, 04:48 UTC Rat Islands, Aleutian Islands, Alaska

What happened

A magnitude 4 earthquake struck Rat Islands, Aleutian Islands, Alaska on 30 Apr 2023, 04:48 UTC at a depth of 103 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, 11:01 UTC

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