M2.5 earthquake 26 km NNE of Chickaloon, Alaska

A magnitude 2.5 earthquake struck 26 km NNE of Chickaloon, Alaska on Tue, Feb 4, 1997, 2:20 PM AKST (23:20 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.7 20 km WNW of Fishhook, 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
2.5	ML, local (Richter)	Alaska Earthquake Center	Preferred · Preliminary
2.5	ML, local (Richter)	USGS National Earthquake Information Center	Reviewed

No one has reported feeling this quake to the USGS.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 97 in the 60 days after this one and 34 in the 30 days before it.

The first 60 of 97.

From the USGS Earthquake Hazards Program and its partner networks, event ak9971m9metm (also filed as usp0007wsu). Read Mon, Oct 5, 2026, 5:29 AM UTC.