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USGSSeptember 28, 2026

M3.1 earthquake, Rat Islands, Aleutian Islands, Alaska

A magnitude 3.1 earthquake was recorded in Rat Islands, Aleutian Islands, Alaska at a depth of 40 km, according to the U.S. Geological Survey. It was the 9,435th earthquake of magnitude 2.5 or more the USGS located in and near the U.S. in 2026, against 12,608 a year on average in 2016-2025.

M3.1

The notice

Issued by
U.S. Geological Survey
Area
Rat Islands, Aleutian Islands, Alaska
State
Alaska
Magnitude
3.1 (local magnitude)
Depth
40.3 km
Time
2026-09-28 22:29:31 UTC
Status
reviewed by a seismologist
Epicentre
51.398, 178.750
Official source
U.S. Geological Survey: the notice at its source

Source: U.S. Geological Survey: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.