Alaska earthquakes

M4.0 earthquake 158 km S of False Pass, Alaska

A magnitude 4.0 earthquake struck 158 km S of False Pass, Alaska on Thu, Aug 1, 2024, 11:05 PM AKDT (07:05 UTC), 35 km (22 mi) below the surface.

Akutan 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: 4.0 (mwr), light
Local time: Thu, Aug 1, 2024, 11:05 PM AKDT
UTC: 2024-08-02 07:05:56 UTC
Depth: 35.0 km (21.7 mi), shallow
Epicenter: 53.432° N, 163.633° 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.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting: Normal
Moment magnitude: 4.0 Mwr
Nodal plane 1: Strike 250°, dip 72°, rake -95°
Nodal plane 2: Strike 85°, dip 19°, rake -76°

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 4.6 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 168°
Stations used: 50

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast161 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 102 in the 60 days after this one and 91 in the 30 days before it.

After

The first 60 of 102.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000nhie (also filed as ak0249voquba). Read Wed, Sep 30, 2026, 4:13 PM UTC.