Alaska earthquakes

M2.1 earthquake 72 km SSW of False Pass, Alaska

A magnitude 2.1 earthquake struck 72 km SSW of False Pass, Alaska on Thu, Aug 23, 2018, 3:11 AM AKDT (11:11 UTC), 58 km (36 mi) below the surface.

A larger quake followed: M3.9 160 km ESE of Akutan, Alaska. This one was a foreshock.

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: 2.1 (ml), micro
Local time: Thu, Aug 23, 2018, 3:11 AM AKDT
UTC: 2018-08-23 11:11:52 UTC
Depth: 57.8 km (35.9 mi), shallow
Epicenter: 54.253° N, 163.830° 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: 16

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast127 kmE

Nearby

Within 100 km, magnitude 1.5 and up: 75 in the 60 days after this one and 27 in the 30 days before it.

After

The first 60 of 75.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak018astwsmd (also filed as ak20262256). Read Wed, Sep 30, 2026, 3:23 PM UTC.