Alaska earthquakes

M3.1 earthquake 84 km NW of Karluk, Alaska

A magnitude 3.1 earthquake struck 84 km NW of Karluk, Alaska on Tue, Oct 12, 2021, 4:19 PM AKDT (00:19 UTC), 115 km (72 mi) below the surface.

A larger quake followed: M3.2 22 km SSE of King Salmon, 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.

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The earthquake

Magnitude: 3.1 (ml), minor
Local time: Tue, Oct 12, 2021, 4:19 PM AKDT
UTC: 2021-10-13 00:19:21 UTC
Depth: 115.2 km (71.6 mi), intermediate-depth
Epicenter: 58.021° N, 155.586° 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: 175

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 102 in the 60 days after this one and 47 in the 30 days before it.

After

The first 60 of 102.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021d4ztdf7 (also filed as us6000fu3x). Read Wed, Sep 23, 2026, 3:38 PM UTC.