Alaska earthquakes

M3.1 earthquake 232 km SE of Chiniak, Alaska

A magnitude 3.1 earthquake struck 232 km SE of Chiniak, Alaska on Fri, Jun 21, 2019, 4:40 PM AKDT (00:40 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.3 217 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: Fri, Jun 21, 2019, 4:40 PM AKDT
UTC: 2019-06-22 00:40:20 UTC
Depth: 8.3 km (5.1 mi), shallow
Epicenter: 55.903° N, 150.080° 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 8.1 km horizontally, 8.1 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 194°, poorly surrounded by stations
Stations used: 67

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 136 in the 60 days after this one and 49 in the 30 days before it.

After

The first 60 of 136.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70004lkz (also filed as aacse0197y47nhf, ak0197y47nhf). Read Mon, Sep 28, 2026, 2:34 PM UTC.