M1.9 earthquake 11 km ESE of Challis, Idaho

A magnitude 1.9 earthquake struck 11 km ESE of Challis, Idaho on Sat, Nov 28, 2015, 5:44 AM MST (12:44 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.8 10 km SE 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: 98 in the 60 days after this one and 12 in the 30 days before it.

The first 60 of 98.

From the USGS Earthquake Hazards Program and its partner networks, event mb80109694. Read Thu, Oct 1, 2026, 12:53 AM UTC.