Alaska earthquakes

M2.9 earthquake Alaska Peninsula

A magnitude 2.9 earthquake struck in the Alaska Peninsula on Thu, Aug 31, 2023, 11:34 PM AKDT (07:34 UTC), 35 km (22 mi) below the surface.

A larger quake followed: M5.4 47 km S of Sand Point, Alaska. This one was a foreshock.

King Cove 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: 2.9 (ml), micro
Local time: Thu, Aug 31, 2023, 11:34 PM AKDT
UTC: 2023-09-01 07:34:50 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 54.777° N, 161.244° 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.

Location uncertainty: About 6.6 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.12
Depth from: Operator assigned
Station coverage gap: 223°, poorly surrounded by stations
Stations used: 5

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast76 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 164 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 us7000kvmx (also filed as ak023b7ni3ug). Read Wed, Sep 30, 2026, 9:47 PM UTC.