Alaska earthquakes

M4.2 earthquake 50 km SSE of False Pass, Alaska

A magnitude 4.2 earthquake struck 50 km SSE of False Pass, Alaska on Fri, May 30, 2025, 5:51 AM AKDT (13:51 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M4.6 141 km S of False Pass, 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: 4.2 (mb), light
Local time: Fri, May 30, 2025, 5:51 AM AKDT
UTC: 2025-05-30 13:51:21 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 54.410° N, 163.256° W
Region: Alaska
Felt reports: 4
Strongest shaking: IV, light shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: IV, light shaking
Peak ground acceleration: 2.5% of gravity
Peak ground velocity: 1.0 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

4 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 2.7 km horizontally, 1.9 km in depth
Magnitude uncertainty: ±0.08
Depth from: Operator assigned
Station coverage gap: 147°
Stations used: 64

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast94 kmSW

Nearby

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 79 in the 30 days before it.

After

The first 60 of at least 200.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000qgw0 (also filed as ak0256wano0z). Read Tue, Sep 29, 2026, 4:39 PM UTC.