Alaska earthquakes

M2.3 earthquake 17 km NW of Happy Valley, Alaska

A magnitude 2.3 earthquake struck 17 km NW of Happy Valley, Alaska on Sun, Aug 15, 2021, 1:18 PM AKDT (21:18 UTC), 83 km (52 mi) below the surface.

A larger quake followed: M3.9 5 km SSW of Kasilof, Alaska. This one was a foreshock.

Happy Valley 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: Sun, Aug 15, 2021, 1:18 PM AKDT
UTC: 2021-08-15 21:18:25 UTC
Depth: 82.9 km (51.5 mi), intermediate-depth
Epicenter: 60.038° N, 151.999° 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: 79

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021afrlskc (also filed as us6000f6pu). Read Wed, Sep 30, 2026, 4:32 PM UTC.