M2.9 earthquake 11 km SW of Willow, Alaska

A magnitude 2.9 earthquake struck 11 km SW of Willow, Alaska on Sun, Sep 7, 2025, 2:31 AM AKDT (10:31 UTC), 31 km (20 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M4.6 14 km SE of Skwentna, Alaska. This one was a foreshock.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.9	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
3.0	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed · ±0.028 · 170 stations

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

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

An automatic solution; a seismologist may revise it.

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

Within 100 km, magnitude 1.5 and up: at least 200 in the 60 days after this one and 99 in the 30 days before it.

The first 60 of at least 200.

From the USGS Earthquake Hazards Program and its partner networks, event ak025bhmhrzg (also filed as us7000qujl). Read Sun, Oct 4, 2026, 9:03 PM UTC.