Alaska earthquakes

M2.5 earthquake 90 km SSE of Akutan, Alaska

A magnitude 2.5 earthquake struck 90 km SSE of Akutan, Alaska on Tue, Oct 19, 2021, 3:21 AM AKDT (11:21 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M3.0 138 km SE of Unalaska, Alaska. This one was a foreshock.

Akutan forecast More in Alaska

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.5 (ml), micro
Local time: Tue, Oct 19, 2021, 3:21 AM AKDT
UTC: 2021-10-19 11:21:03 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 53.421° N, 165.118° 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.

Location uncertainty: About 1.6 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.12
Depth from: Operator assigned
Station coverage gap: 254°, poorly surrounded by stations
Stations used: 26

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Akutan, AlaskaPopulation 1,040. Forecast90 kmSSE

Nearby

Within 100 km, magnitude 1.5 and up: 104 in the 60 days after this one and 37 in the 30 days before it.

After

The first 60 of 104.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000fvw1 (also filed as ak021df3lmrf). Read Wed, Sep 23, 2026, 5:33 AM UTC.