Alaska earthquakes

M3.4 earthquake 290 km SE of Chiniak, Alaska

A magnitude 3.4 earthquake struck 290 km SE of Chiniak, Alaska on Thu, Feb 13, 2020, 3:28 AM AKST (12:28 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M5.2 250 km ESE of Chiniak, Alaska. This one was a foreshock.

Map

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The earthquake

Magnitude: 3.4 (ml), minor
Local time: Thu, Feb 13, 2020, 3:28 AM AKST
UTC: 2020-02-13 12:28:04 UTC
Depth: 8.4 km (5.2 mi), shallow
Epicenter: 55.664° N, 149.142° 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 8.9 km horizontally, 8.3 km in depth
Magnitude uncertainty: ±0.05
Depth from: From location
Station coverage gap: 204°, poorly surrounded by stations
Stations used: 43

Nearby

Within 100 km, magnitude 1.5 and up: 39 in the 60 days after this one and 16 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 us70007ui3 (also filed as ak02020yyhtx). Read Thu, Sep 24, 2026, 3:41 PM UTC.