Alaska earthquakes

M1.6 earthquake 83 km NNW of Karluk, Alaska

A magnitude 1.6 earthquake struck 83 km NNW of Karluk, Alaska on Sat, Apr 17, 2021, 8:57 AM AKDT (16:57 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.5 46 km WSW of Aleneva, 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: 1.6 (ml), micro
Local time: Sat, Apr 17, 2021, 8:57 AM AKDT
UTC: 2021-04-17 16:57:22 UTC
Depth: 9.9 km (6.2 mi), shallow
Epicenter: 58.281° N, 154.897° 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: 13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 83 in the 60 days after this one and 62 in the 30 days before it.

After

The first 60 of 83.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0214x8d76m (also filed as av91024438). Read Wed, Sep 23, 2026, 5:51 PM UTC.