Alaska earthquakes

M3.5 earthquake 75 km S of Kokhanok, Alaska

A magnitude 3.5 earthquake struck 75 km S of Kokhanok, Alaska on Sat, Dec 4, 2021, 5:01 AM AKST (14:01 UTC), 133 km (82 mi) below the surface.

A larger quake followed: M3.7 21 km SSE of Kokhanok, Alaska. This one was a foreshock.

Naknek forecast More in Alaska

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 3.5 (ml), minor
Local time: Sat, Dec 4, 2021, 5:01 AM AKST
UTC: 2021-12-04 14:01:22 UTC
Depth: 132.6 km (82.4 mi), intermediate-depth
Epicenter: 58.766° N, 154.735° 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: 230

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 104 in the 60 days after this one and 39 in the 30 days before it.

After

The first 60 of 104.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021fj7zms2 (also filed as us6000g90n). Read Sun, Sep 27, 2026, 11:17 PM UTC.