Alaska earthquakes

M1.5 earthquake 74 km WSW of Karluk, Alaska

A magnitude 1.5 earthquake struck 74 km WSW of Karluk, Alaska on Thu, Sep 2, 2021, 12:17 PM AKDT (20:17 UTC), 71 km (44 mi) below the surface.

A larger quake followed: M1.8 124 km SE of Ugashik, Alaska. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.5 (ml), micro
Local time
UTC
2021-09-02 20:17:38 UTC
Depth
71.2 km (44.2 mi), intermediate-depth
Epicenter
57.252° N, 155.551° 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: 116 in the 60 days after this one and 83 in the 30 days before it.

After

The first 60 of 116.

Before

Earthquakes todayAlaska earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021b9iof79. Read Tue, Sep 22, 2026, 8:40 PM UTC.