Alaska earthquakes

M2.5 earthquake 86 km NW of Aleneva, Alaska

A magnitude 2.5 earthquake struck 86 km NW of Aleneva, Alaska on Thu, Oct 21, 2021, 12:23 PM AKDT (20:23 UTC), 78 km (48 mi) below the surface.

A larger quake followed: M2.6 54 km W of Nanwalek, Alaska. This one was a foreshock.

Kodiak Station 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: Thu, Oct 21, 2021, 12:23 PM AKDT
UTC: 2021-10-21 20:23:15 UTC
Depth: 77.7 km (48.3 mi), intermediate-depth
Epicenter: 58.652° N, 153.855° 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: 85

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 123 in the 60 days after this one and 75 in the 30 days before it.

After

The first 60 of 123.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021dik1nvb (also filed as us6000fwj2). Read Wed, Sep 23, 2026, 5:01 AM UTC.