Alaska earthquakes

M3.1 earthquake 65 km ESE of King Cove, Alaska

A magnitude 3.1 earthquake struck 65 km ESE of King Cove, Alaska on Tue, Mar 16, 2021, 1:17 AM AKDT (09:17 UTC), 49 km (30 mi) below the surface.

A larger quake followed: M4.6 32 km S of Sand Point, 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, Mar 16, 2021, 1:17 AM AKDT
UTC: 2021-03-16 09:17:35 UTC
Depth: 48.8 km (30.3 mi), shallow
Epicenter: 54.763° N, 161.440° 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 7.3 km horizontally, 16.2 km in depth
Magnitude uncertainty: ±0.06
Depth from: From location
Station coverage gap: 172°
Stations used: 36

Nearest places

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

King Cove, AlaskaPopulation 1,009. Forecast65 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 123 in the 60 days after this one and 93 in the 30 days before it.

After

The first 60 of 123.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000e05j (also filed as ak0213g6rnen). Read Sat, Sep 26, 2026, 6:02 AM UTC.