Alaska earthquakes

M3.1 earthquake 39 km SSE of False Pass, Alaska

A magnitude 3.1 earthquake struck 39 km SSE of False Pass, Alaska on Tue, Feb 16, 2021, 8:29 PM AKST (05:29 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M3.5 89 km SW of False Pass, Alaska. This one was a foreshock.

King Cove forecast More in Alaska

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: Tue, Feb 16, 2021, 8:29 PM AKST
UTC: 2021-02-17 05:29:24 UTC
Depth: 10.7 km (6.6 mi), shallow
Epicenter: 54.508° N, 163.262° 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 1.9 km horizontally, 8.3 km in depth
Magnitude uncertainty: ±0.10
Depth from: From location
Station coverage gap: 170°
Stations used: 28

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast86 kmSW

Nearby

Within 100 km, magnitude 1.5 and up: 110 in the 60 days after this one and 44 in the 30 days before it.

After

The first 60 of 110.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000dfwn (also filed as ak02127gy3dc). Read Wed, Sep 23, 2026, 6:21 PM UTC.