Alaska earthquakes

M3.5 earthquake 248 km ESE of Chiniak, Alaska

A magnitude 3.5 earthquake struck 248 km ESE of Chiniak, Alaska on Tue, Apr 23, 2019, 8:05 AM AKDT (16:05 UTC), 20 km (12 mi) below the surface.

A larger quake followed: M3.6 238 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: 3.5 (ml), minor
Local time: Tue, Apr 23, 2019, 8:05 AM AKDT
UTC: 2019-04-23 16:05:21 UTC
Depth: 20.0 km (12.4 mi), shallow
Epicenter: 56.527° N, 148.703° 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 11.0 km horizontally, 10.5 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 252°, poorly surrounded by stations
Stations used: 16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 124 in the 60 days after this one and 75 in the 30 days before it.

After

The first 60 of 124.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us70003arc (also filed as aacse019575abn9, ak019575abn9). Read Thu, Sep 24, 2026, 7:58 AM UTC.