Alaska earthquakes

M2.8 earthquake 235 km SE of Chiniak, Alaska

A magnitude 2.8 earthquake struck 235 km SE of Chiniak, Alaska on Wed, Aug 29, 2018, 11:08 PM AKDT (07:08 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M3.0 271 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: 2.8 (ml), micro
Local time: Wed, Aug 29, 2018, 11:08 PM AKDT
UTC: 2018-08-30 07:08:57 UTC
Depth: 7.3 km (4.5 mi), shallow
Epicenter: 55.917° N, 149.985° 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 10.8 km horizontally, 9.4 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 264°, poorly surrounded by stations
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 us2000hjh1 (also filed as ak20262449, aacse018b4c9yc3, ak018b4c9yc3). Read Tue, Sep 22, 2026, 7:20 AM UTC.