EarthquakeMajor

M6.4 earthquake - Rat Islands, Aleutian Islands, Alaska

Name: M6.4 earthquake - Rat Islands, Aleutian Islands, Alaska
Start: 1991-01-23T01:12:29.75+00:00
Location: Rat Islands, Aleutian Islands, Alaska

13051 d ago · 23 Jan 1991, 01:12 UTC Rat Islands, Aleutian Islands, Alaska

What happened

A magnitude 6.4 earthquake struck Rat Islands, Aleutian Islands, Alaska on 23 Jan 1991, 01:12 UTC at a depth of 108 km.

Earthquakes of this size are classed as Strong. Can cause damage in populated areas up to tens of kilometres away. This was an intermediate-depth earthquake, so shaking is spread over a wider, gentler area.

Timeline

First reported by USGS
16 Oct 2026, 20:46 UTC

Community

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