Alaska earthquakes

M3.1 earthquake 39 km SSW of Nanwalek, Alaska

A magnitude 3.1 earthquake struck 39 km SSW of Nanwalek, Alaska on Sat, Apr 3, 2021, 12:47 PM AKDT (20:47 UTC), 70 km (43 mi) below the surface.

A larger quake followed: M3.7 50 km WNW of Nanwalek, 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: 3.1 (ml), minor
Local time: Sat, Apr 3, 2021, 12:47 PM AKDT
UTC: 2021-04-03 20:47:03 UTC
Depth: 69.9 km (43.4 mi), shallow
Epicenter: 59.048° N, 152.262° 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: 219

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 170 in the 60 days after this one and 115 in the 30 days before it.

After

The first 60 of 170.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0214a560v7 (also filed as us6000dyti). Read Mon, Sep 28, 2026, 2:50 PM UTC.