Alaska earthquakes

M2.7 earthquake 290 km SE of Chiniak, Alaska

A magnitude 2.7 earthquake struck 290 km SE of Chiniak, Alaska on Mon, Aug 20, 2018, 2:53 PM AKDT (22:53 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.8 234 km SE of Chiniak, Alaska. This one was a foreshock.

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The earthquake

Magnitude
2.7 (ml), micro
Local time
UTC
2018-08-20 22:53:44 UTC
Depth
7.9 km (4.9 mi), shallow
Epicenter
55.811° N, 148.846° 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
27

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event aacse018ao23i84. Read Tue, Sep 22, 2026, 10:17 AM UTC.