Alaska earthquakes

M3.6 earthquake 257 km SE of Chiniak, Alaska

A magnitude 3.6 earthquake struck 257 km SE of Chiniak, Alaska on Sun, Jul 21, 2019, 7:49 AM AKDT (15:49 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M3.9 236 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: 3.6 (ml), minor
Local time: Sun, Jul 21, 2019, 7:49 AM AKDT
UTC: 2019-07-21 15:49:10 UTC
Depth: 20.1 km (12.5 mi), shallow
Epicenter: 56.021° N, 149.219° 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 9.4 km horizontally, 11.5 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 236°, poorly surrounded by stations
Stations used: 28

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 96 in the 60 days after this one and 101 in the 30 days before it.

After

The first 60 of 96.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70004q3f (also filed as aacse0199abs51c, ak0199abs51c). Read Thu, Sep 24, 2026, 6:55 AM UTC.