Idaho earthquakes

M2.7 earthquake 11 km ESE of Challis, Idaho

A magnitude 2.7 earthquake struck 11 km ESE of Challis, Idaho on Thu, Jan 29, 2015, 3:48 PM MST (22:48 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.8 9 km SE of Challis, Idaho. This one was a foreshock.

Challis forecast More in Idaho

Map

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

Open the live map with earthquakes

The earthquake

Magnitude: 2.7 (ml), micro
Local time: Thu, Jan 29, 2015, 3:48 PM MST
UTC: 2015-01-29 22:48:34 UTC
Depth: 11.9 km (7.4 mi), shallow
Epicenter: 44.448° N, 114.108° W
Region: Idaho
Felt reports: 1
Tsunami flag: No
Status: Reviewed by a seismologist

Did you feel it?

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

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 4.2 km horizontally, 7.0 km in depth
Magnitude uncertainty: ±0.04
Station coverage gap: 115°
Stations used: 34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 24 in the 60 days after this one and 81 in the 30 days before it.

After

Before

Earthquakes today Idaho earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usc000tki4 (also filed as mbmb15885652, mb15885652). Read Tue, Sep 22, 2026, 9:43 PM UTC.