Alaska earthquakes

M2.6 earthquake 248 km ESE of Chiniak, Alaska

A magnitude 2.6 earthquake struck 248 km ESE of Chiniak, Alaska on Thu, Mar 29, 2018, 3:54 AM AKDT (11:54 UTC), 22 km (14 mi) below the surface.

A larger quake followed: M5.5 276 km ESE 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: Thu, Mar 29, 2018, 3:54 AM AKDT
UTC: 2018-03-29 11:54:35 UTC
Depth: 22.1 km (13.7 mi), shallow
Epicenter: 56.563° N, 148.670° 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 5.3 km horizontally, 11.0 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 213°, 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: at least 201 in the 60 days after this one and at least 200 in the 30 days before it.

After

The first 60 of at least 201.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us2000dv5z (also filed as ak18988168, ak01841q5yo9). Read Fri, Sep 25, 2026, 8:37 PM UTC.