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USGSSeptember 8, 2026

M4.0 earthquake, 79 km SSW of Nikolski, Alaska

A magnitude 4.0 earthquake was recorded 79 km SSW of Nikolski, Alaska at a depth of 45 km, according to the U.S. Geological Survey. It was the 8,805th 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.

M4.0

The notice

Issued by
U.S. Geological Survey
Area
79 km SSW of Nikolski, Alaska
State
Alaska
Magnitude
4.0 (body-wave magnitude)
Depth
45.3 km
Time
2026-09-08 23:02:34 UTC
Status
reviewed by a seismologist
Epicentre
52.309, -169.415
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.