Alaska earthquakes

M2.3 earthquake 26 km SSW of Cantwell, Alaska

A magnitude 2.3 earthquake struck 26 km SSW of Cantwell, Alaska on Tue, Sep 21, 2021, 10:17 PM AKDT (06:17 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M4.4 60 km SSE of Cantwell, Alaska. This one was a foreshock.

Healy 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: 2.3 (ml), micro
Local time: Tue, Sep 21, 2021, 10:17 PM AKDT
UTC: 2021-09-22 06:17:10 UTC
Depth: 2.9 km (1.8 mi), shallow
Epicenter: 63.177° N, 149.182° 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: 83

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 90 in the 30 days before it.

After

The first 60 of 198.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021c6d38hd (also filed as us7000fdcc). Read Mon, Sep 28, 2026, 12:56 PM UTC.