Alaska earthquakes

M2.3 earthquake 43 km NW of Nanwalek, Alaska

A magnitude 2.3 earthquake struck 43 km NW of Nanwalek, Alaska on Tue, Oct 5, 2021, 5:53 PM AKDT (01:53 UTC), 78 km (48 mi) below the surface.

A larger quake followed: M2.5 Southern Alaska. This one was a foreshock.

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

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The earthquake

Magnitude: 2.3 (ml), micro
Local time: Tue, Oct 5, 2021, 5:53 PM AKDT
UTC: 2021-10-06 01:53:16 UTC
Depth: 77.8 km (48.3 mi), intermediate-depth
Epicenter: 59.588° N, 152.544° 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: 143

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ctfunjx (also filed as us6000fs6e). Read Wed, Sep 23, 2026, 7:33 AM UTC.