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USGSSeptember 27, 2026

M3.3 earthquake, 25 km E of Atka, Alaska

A magnitude 3.3 earthquake was recorded 25 km E of Atka, Alaska at a depth of 17 km, according to the U.S. Geological Survey. It was the 9,394th 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.

M3.3

The notice

Issued by
U.S. Geological Survey
Area
25 km E of Atka, Alaska
State
Alaska
Magnitude
3.3 (local magnitude)
Depth
16.9 km
Time
2026-09-27 18:03:23 UTC
Status
reviewed by a seismologist
Epicentre
52.230, -173.830
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.