Alaska earthquakes

M2.3 earthquake 81 km WNW of Karluk, Alaska

A magnitude 2.3 earthquake struck 81 km WNW of Karluk, Alaska on Sat, Jul 31, 2021, 10:26 AM AKDT (18:26 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M2.9 80 km ESE of Egegik, 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: 2.3 (ml), micro
Local time: Sat, Jul 31, 2021, 10:26 AM AKDT
UTC: 2021-07-31 18:26:47 UTC
Depth: 9.3 km (5.8 mi), shallow
Epicenter: 57.915° N, 155.660° 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: 33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 123 in the 60 days after this one and 53 in the 30 days before it.

After

The first 60 of 123.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0219qwt1z6 (also filed as us6000f116). Read Wed, Sep 23, 2026, 5:06 AM UTC.