M3.8 earthquake 11 km ESE of Challis, Idaho

A magnitude 3.8 earthquake struck 11 km ESE of Challis, Idaho on Fri, Jan 9, 2015, 6:30 PM MST (01:30 UTC), 10 km (6 mi) below the surface.

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.

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

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 46 in the 60 days after this one and 77 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event usc000teea (also filed as mb15266598). Read Tue, Sep 22, 2026, 2:46 PM UTC.