Alaska earthquakes

M3.6 earthquake 156 km ESE of Akutan, Alaska

A magnitude 3.6 earthquake struck 156 km ESE of Akutan, Alaska on Sun, May 27, 2018, 2:00 PM AKDT (22:00 UTC), 37 km (23 mi) below the surface.

A larger quake followed: M4.3 152 km ESE of Akutan, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.6 (mb), minor
Local time
UTC
2018-05-27 22:00:47 UTC
Depth
37.3 km (23.2 mi), shallow
Epicenter
53.419° N, 163.735° 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 6.3 km horizontally, 15.4 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
204°, poorly surrounded by stations
Stations used
57

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 111 in the 60 days after this one and 80 in the 30 days before it.

After

The first 60 of 111.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000efdz (also filed as ak0186rh3nhd, ak19674271). Read Wed, Sep 30, 2026, 6:33 PM UTC.