M4.8 earthquake 15 km NNW of Challis, Idaho

A magnitude 4.8 earthquake struck 15 km NNW of Challis, Idaho on Sat, Apr 12, 2014, 6:04 PM MDT (00:04 UTC), 4 km (2 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.

69 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.8 and up: 103 in the 60 days after this one and 36 in the 30 days before it.

The first 60 of 103.

From the USGS Earthquake Hazards Program and its partner networks, event usc000pi6d (also filed as uu60064462). Read Tue, Sep 22, 2026, 6:16 AM UTC.