Alaska earthquakes

M3.0 earthquake 207 km SE of Chiniak, Alaska

A magnitude 3.0 earthquake struck 207 km SE of Chiniak, Alaska on Mon, Jun 18, 2018, 12:30 AM AKDT (08:30 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.2 274 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: 3.0 (ml), minor
Local time: Mon, Jun 18, 2018, 12:30 AM AKDT
UTC: 2018-06-18 08:30:25 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.603° N, 149.406° 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 8.4 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.07
Depth from: Operator assigned
Station coverage gap: 215°, poorly surrounded by stations
Stations used: 34

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 us1000exyk (also filed as ak0187rmrls9, ak19794444, aacse0187rmrls9). Read Tue, Sep 22, 2026, 5:59 AM UTC.