M2.1 earthquake 10 km NNE of Stanley, Idaho

A magnitude 2.1 earthquake struck 10 km NNE of Stanley, Idaho on Mon, Oct 26, 2015, 7:32 AM MDT (13:32 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M3.5 5 km NW of Challis, Idaho. This one was a foreshock.

Map

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

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: 81 in the 60 days after this one and 16 in the 30 days before it.

The first 60 of 81.

From the USGS Earthquake Hazards Program and its partner networks, event mb80103314. Read Wed, Sep 30, 2026, 8:13 PM UTC.