Alaska earthquakes

M2.5 earthquake 9 km WNW of Happy Valley, Alaska

A magnitude 2.5 earthquake struck 9 km WNW of Happy Valley, Alaska on Thu, Dec 30, 2021, 10:39 PM AKST (07:39 UTC), 79 km (49 mi) below the surface.

A larger quake followed: M5.1 48 km NW of Ninilchik, 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: 2.5 (ml), micro
Local time: Thu, Dec 30, 2021, 10:39 PM AKST
UTC: 2021-12-31 07:39:04 UTC
Depth: 79.3 km (49.3 mi), intermediate-depth
Epicenter: 59.982° N, 151.888° 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: 100

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 202 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 202.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021grrk2pm (also filed as us7000g84v). Read Tue, Sep 29, 2026, 1:46 PM UTC.