Alaska earthquakes

M3.1 earthquake 261 km ESE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 261 km ESE of Chiniak, Alaska on Thu, Sep 19, 2019, 6:46 AM AKDT (14:46 UTC), 21 km (13 mi) below the surface.

A larger quake followed: M5.0 273 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: 3.1 (ml), minor
Local time: Thu, Sep 19, 2019, 6:46 AM AKDT
UTC: 2019-09-19 14:46:36 UTC
Depth: 21.3 km (13.2 mi), shallow
Epicenter: 56.473° N, 148.504° 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 9.9 km horizontally, 11.7 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 255°, poorly surrounded by stations
Stations used: 29

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 38 in the 30 days before it.

After

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005ut1 (also filed as ak019c1jexvv). Read Mon, Sep 28, 2026, 10:24 AM UTC.