M4.2 earthquake 105 km S of False Pass, Alaska

A magnitude 4.2 earthquake struck 105 km S of False Pass, Alaska on Wed, Jan 29, 2025, 7:19 AM AKST (16:19 UTC), 38 km (23 mi) below the surface.

A larger quake followed: M5.0 151 km SE of Akutan, Alaska. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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

No one has reported feeling this quake to the USGS.

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 54 in the 30 days before it.

The first 60 of 168.

From the USGS Earthquake Hazards Program and its partner networks, event us7000p9vt (also filed as ak0251c882z7). Read Thu, Oct 1, 2026, 1:31 AM UTC.