Alaska earthquakes

M3.4 earthquake 234 km SE of Chiniak, Alaska

A magnitude 3.4 earthquake struck 234 km SE of Chiniak, Alaska on Sun, Jun 3, 2018, 1:07 PM AKDT (21:07 UTC), 23 km (14 mi) below the surface.

A larger quake followed: M3.5 241 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: 3.4 (ml), minor
Local time: Sun, Jun 3, 2018, 1:07 PM AKDT
UTC: 2018-06-03 21:07:32 UTC
Depth: 23.0 km (14.3 mi), shallow
Epicenter: 56.208° N, 149.419° 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 7.8 km horizontally, 10.1 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 186°, poorly surrounded by stations
Stations used: 104

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 us1000ei4n (also filed as ak19703196, aacse018731b4jc, ak018731b4jc). Read Mon, Sep 21, 2026, 11:33 PM UTC.