Alaska earthquakes

M1.6 earthquake Alaska Peninsula

A magnitude 1.6 earthquake struck in the Alaska Peninsula on Thu, Mar 2, 2023, 10:54 PM AKST (07:54 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M3.5 32 km E of Port Heiden, 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: Thu, Mar 2, 2023, 10:54 PM AKST
UTC: 2023-03-03 07:54:48 UTC
Depth: 3.4 km (2.1 mi), shallow
Epicenter: 56.866° N, 158.121° 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: 15

Nearest places

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

Naknek, AlaskaPopulation 544. Forecast217 kmSSW

Nearby

Within 100 km, magnitude 1.5 and up: 143 in the 60 days after this one and 66 in the 30 days before it.

After

The first 60 of 143.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0232unt71z (also filed as av91780796). Read Wed, Sep 30, 2026, 5:19 PM UTC.