Alaska earthquakes

M3.1 earthquake 44 km WNW of Tyonek, Alaska

A magnitude 3.1 earthquake struck 44 km WNW of Tyonek, Alaska on Wed, May 21, 1997, 11:40 AM AKDT (19:40 UTC), 119 km (74 mi) below the surface.

A larger quake followed: M3.6 4 km W of Tyonek, 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, local (Richter)), minor
Magnitude from: Alaska Earthquake Center
Local time: Wed, May 21, 1997, 11:40 AM AKDT
UTC: 1997-05-21 19:40:06 UTC
Depth: 118.6 km (73.7 mi), intermediate-depth
Epicenter: 61.227° N, 151.904° 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: 22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 110 in the 60 days after this one and 68 in the 30 days before it.

After

The first 60 of 110.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak9976hibr8f (also filed as usp00082n5). Read Mon, Oct 5, 2026, 12:05 PM UTC.