Alaska earthquakes

M2.9 earthquake 25 km WNW of Willow, Alaska

A magnitude 2.9 earthquake struck 25 km WNW of Willow, Alaska on Thu, Dec 2, 2021, 4:00 PM AKST (01:00 UTC), 62 km (38 mi) below the surface.

A larger quake followed: M3.1 40 km W of Skwentna, Alaska. This one was a foreshock.

Willow 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: 2.9 (ml), micro
Local time: Thu, Dec 2, 2021, 4:00 PM AKST
UTC: 2021-12-03 01:00:39 UTC
Depth: 61.8 km (38.4 mi), shallow
Epicenter: 61.824° N, 150.496° W
Region: Alaska
Strongest shaking: II, weak shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: II, weak shaking
Peak ground acceleration: 0.2% of gravity
Peak ground velocity: -3.7 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used: 120

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

The first 60 of 200.

Earthquakes today Alaska earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak021fhcph0p (also filed as us6000g8ld). Read Thu, Sep 24, 2026, 2:04 AM UTC.