Alaska earthquakes

M2.9 earthquake 232 km SE of Chiniak, Alaska

A magnitude 2.9 earthquake struck 232 km SE of Chiniak, Alaska on Fri, Oct 26, 2018, 11:34 PM AKDT (07:34 UTC), 24 km (15 mi) below the surface.

A larger quake followed: M3.3 238 km SE of Chiniak, Alaska. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 2.9 (ml), micro
Local time: Fri, Oct 26, 2018, 11:34 PM AKDT
UTC: 2018-10-27 07:34:58 UTC
Depth: 23.6 km (14.6 mi), shallow
Epicenter: 56.084° N, 149.680° 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 8.3 km horizontally, 10.4 km in depth
Magnitude uncertainty: ±0.07
Depth from: From location
Station coverage gap: 225°, poorly surrounded by stations
Stations used: 31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 198 in the 60 days after this one and 1 in the 30 days before it.

After

The first 60 of 198.

Before

4.8218 km SE of Chiniak, AlaskaFri, Oct 26, 5:00 PM AKDT · 2888 days ago · 10 km deep · 27 km away · tsunami flag

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us1000hj72 (also filed as ak20305304, aacse018ds9ljm5, ak018ds9ljm5). Read Tue, Sep 22, 2026, 7:49 PM UTC.