Alaska earthquakes

M2.5 earthquake 140 km ESE of Akutan, Alaska

A magnitude 2.5 earthquake struck 140 km ESE of Akutan, Alaska on Sat, Mar 31, 2018, 12:11 PM AKDT (20:11 UTC), 12 km (8 mi) below the surface.

A larger quake followed: M5.5 160 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: 2.5 (ml), micro
Local time: Sat, Mar 31, 2018, 12:11 PM AKDT
UTC: 2018-03-31 20:11:40 UTC
Depth: 12.4 km (7.7 mi), shallow
Epicenter: 53.563° N, 163.878° 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 4.6 km horizontally, 14.8 km in depth
Depth from: From location
Station coverage gap: 232°, poorly surrounded by stations
Stations used: 20

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast140 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 193 in the 60 days after this one and 38 in the 30 days before it.

After

The first 60 of 193.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000dx9q (also filed as ak19173696, ak018456ccl6). Read Wed, Sep 30, 2026, 11:18 PM UTC.