Alaska earthquakes

M4.1 earthquake 239 km SE of Chiniak, Alaska

A magnitude 4.1 earthquake struck 239 km SE of Chiniak, Alaska on Wed, Sep 11, 2019, 4:42 PM AKDT (00:42 UTC), 22 km (14 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: 4.1 (mb), light
Local time: Wed, Sep 11, 2019, 4:42 PM AKDT
UTC: 2019-09-12 00:42:46 UTC
Depth: 21.9 km (13.6 mi), shallow
Epicenter: 56.243° N, 149.252° 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 6.8 km horizontally, 5.7 km in depth
Magnitude uncertainty: ±0.17
Depth from: From location
Station coverage gap: 143°
Stations used: 120

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 53 in the 30 days before it.

After

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70005f84 (also filed as ak019bpqalc7). Read Sun, Sep 27, 2026, 5:47 PM UTC.