Earthquake report · M 3.8

M3.8 earthquake 86 km SSW of Unalaska, Alaska

USGS · updated Oct 18, 2026, 08:22 UTC

A magnitude 3.8 earthquake was recorded on Oct 18, 2026, 4:02 AM (EDT) 86 km SSW of Unalaska, Alaska at a depth of 40 km, according to the U.S. Geological Survey (USGS). Data is preliminary and the magnitude may be revised.

Reported location · 53.15°, -167.00° ·

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Details

Source: usgs
Category: earthquake
Source status: active
Magnitude: 3.8
Depth (km): 40
Local time: Oct 18, 2026, 4:02 AM (EDT)
UTC time: 2026-10-18 08:02
Coordinates: 53.151, -167.005

Updates

M 3.8 - 86 km SSW of Unalaska, AlaskaOct 18, 2026, 08:22 UTC

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Saved source report · captured Oct 22, 2026, 03:03 UTC. Follow the issuing authority’s current instructions.