Alaska earthquakes

M2.0 earthquake 61 km W of Happy Valley, Alaska

A magnitude 2.0 earthquake struck 61 km W of Happy Valley, Alaska on Sat, Oct 9, 2021, 12:03 AM AKDT (08:03 UTC), 108 km (67 mi) below the surface.

A larger quake followed: M2.3 41 km ENE of Port Alsworth, Alaska. This one was a foreshock.

Happy Valley forecastMore in Alaska

Map

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

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The earthquake

Magnitude
2.0 (ml), micro
Local time
UTC
2021-10-09 08:03:23 UTC
Depth
107.9 km (67.0 mi), intermediate-depth
Epicenter
60.015° N, 152.826° 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: 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 ak021cyic10f. Read Thu, Sep 24, 2026, 9:52 AM UTC.