Alaska earthquakes

M2.1 earthquake 45 km WNW of Tyonek, Alaska

A magnitude 2.1 earthquake struck 45 km WNW of Tyonek, Alaska on Wed, Mar 10, 2021, 12:43 AM AKST (09:43 UTC), 97 km (60 mi) below the surface.

A larger quake followed: M3.1 27 km NW of Nikiski, Alaska. This one was a foreshock.

Nikiski 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: 2.1 (ml), micro
Local time: Wed, Mar 10, 2021, 12:43 AM AKST
UTC: 2021-03-10 09:43:35 UTC
Depth: 96.5 km (60.0 mi), intermediate-depth
Epicenter: 61.183° N, 151.945° W
Region: Alaska
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located

Reviewed by a seismologist.

Stations used: 81

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 126 in the 30 days before it.

After

The first 60 of at least 199.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021369p513 (also filed as us7000dhmt). Read Sun, Sep 27, 2026, 5:48 AM UTC.