Alaska earthquakes

M5.9 earthquake 23 km NE of Willow, Alaska

A magnitude 5.9 earthquake struck 23 km NE of Willow, Alaska on Tue, Dec 31, 1974, 5:55 PM GMT-10 (03:55 UTC), 66 km (41 mi) below the surface.

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: 5.9 (mb), moderate
Local time: Tue, Dec 31, 1974, 5:55 PM GMT-10
UTC: 1975-01-01 03:55:12 UTC
Depth: 66.0 km (41.0 mi), shallow
Epicenter: 61.909° N, 149.738° W
Region: Alaska
Strongest shaking: V, moderate 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: V, moderate shaking
Peak ground acceleration: 6.6% of gravity
Peak ground velocity: 1.2 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: 118

Nearest places

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

Nearby

Within 100 km, magnitude 2.5 and up: 8 in the 60 days after this one and 3 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 usp00009bd (also filed as ushis3309, iscgem732776). Read Tue, Sep 22, 2026, 6:57 AM UTC.