Alaska earthquakes

M2.6 earthquake 246 km ESE of Chiniak, Alaska

A magnitude 2.6 earthquake struck 246 km ESE of Chiniak, Alaska on Wed, Aug 29, 2018, 9:32 AM AKDT (17:32 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.7 222 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: 2.6 (ml), micro
Local time: Wed, Aug 29, 2018, 9:32 AM AKDT
UTC: 2018-08-29 17:32:52 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 56.434° N, 148.838° 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 5.0 km horizontally, 2.0 km in depth
Magnitude uncertainty: ±0.08
Depth from: Operator assigned
Station coverage gap: 221°, poorly surrounded by stations
Stations used: 18

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 us1000h5z6 (also filed as ak20269679, ak018b2utznn, aacse018b2utznn). Read Tue, Sep 22, 2026, 7:09 AM UTC.