Alaska earthquakes

M3.1 earthquake 236 km SE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 236 km SE of Chiniak, Alaska on Wed, Jul 11, 2018, 9:47 AM AKDT (17:47 UTC), 9 km (6 mi) below the surface.

A larger quake followed: M3.2 227 km SE of Chiniak, 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: 3.1 (ml), minor
Local time: Wed, Jul 11, 2018, 9:47 AM AKDT
UTC: 2018-07-11 17:47:16 UTC
Depth: 9.2 km (5.7 mi), shallow
Epicenter: 55.861° N, 150.082° 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: 33

Nearest places

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

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 ak0188ttl405 (also filed as aacse0188ttl405). Read Tue, Sep 22, 2026, 7:26 AM UTC.