Alaska earthquakes

M2.4 earthquake 87 km E of McCarthy, Alaska

A magnitude 2.4 earthquake struck 87 km E of McCarthy, Alaska on Fri, Aug 20, 2021, 7:44 PM AKDT (03:44 UTC), 14 km (8 mi) below the surface.

A larger quake followed: M3.6 52 km SSW of Alcan Border, 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: 2.4 (ml), micro
Local time: Fri, Aug 20, 2021, 7:44 PM AKDT
UTC: 2021-08-21 03:44:55 UTC
Depth: 13.5 km (8.4 mi), shallow
Epicenter: 61.558° N, 141.294° 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: 69

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 26 in the 60 days after this one and 15 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021ape9prb (also filed as us6000f984). Read Mon, Sep 28, 2026, 9:50 AM UTC.