Alaska earthquakes

M1.8 earthquake 14 km WSW of Atka, Alaska

A magnitude 1.8 earthquake struck 14 km WSW of Atka, Alaska on Tue, Jan 5, 2021, 8:00 PM HAST (06:00 UTC), 18 km (11 mi) below the surface.

A larger quake followed: M4.9 91 km S of Atka, Alaska. This one was a foreshock.

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The earthquake

Magnitude: 1.8 (ml), micro
Local time: Tue, Jan 5, 2021, 8:00 PM HAST
UTC: 2021-01-06 06:00:43 UTC
Depth: 18.1 km (11.2 mi), shallow
Epicenter: 52.132° N, 174.386° W
Region: Alaska
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 15

Nearby

Within 100 km, magnitude 1.5 and up: 88 in the 60 days after this one and 39 in the 30 days before it.

After

The first 60 of 88.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021a0srwu (also filed as av91016323). Read Thu, Sep 24, 2026, 12:05 PM UTC.