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USGSNovember 4, 2026

M4.2 earthquake, 31 km S of Adak, Alaska

A magnitude 4.2 earthquake was recorded 31 km S of Adak, Alaska at a depth of 70 km, according to the U.S. Geological Survey. It was the 10,651st 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.

M4.2

The notice

Issued by
U.S. Geological Survey
Area
31 km S of Adak, Alaska
State
Alaska
Magnitude
4.2 (local magnitude)
Depth
70.2 km
Time
2026-11-04 19:22:21 UTC
Status
reviewed by a seismologist
Epicentre
51.596, -176.679
Official source
U.S. Geological Survey: the notice at its source

Warnings and earthquakes in AlaskaEarthquakes, November 2026

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.

The record around this notice