Alaska earthquakes

M2.5 earthquake 120 km S of False Pass, Alaska

A magnitude 2.5 earthquake struck 120 km S of False Pass, Alaska on Sat, Mar 6, 2021, 3:06 AM AKST (12:06 UTC), 21 km (13 mi) below the surface.

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

Akutan 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: 2.5 (ml), micro
Local time: Sat, Mar 6, 2021, 3:06 AM AKST
UTC: 2021-03-06 12:06:16 UTC
Depth: 20.9 km (13.0 mi), shallow
Epicenter: 53.770° N, 163.546° 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 2.3 km horizontally, 12.9 km in depth
Magnitude uncertainty: ±0.12
Depth from: From location
Station coverage gap: 226°, poorly surrounded by stations
Stations used: 25

Nearest places

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

Akutan, AlaskaPopulation 1,040. Forecast151 kmESE

Nearby

Within 100 km, magnitude 1.5 and up: 111 in the 60 days after this one and 38 in the 30 days before it.

After

The first 60 of 111.

Before

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us6000dwk7 (also filed as ak0212zp431b). Read Wed, Sep 23, 2026, 8:30 PM UTC.