Idaho earthquakes

M2.7 earthquake 7 km SE of Challis, Idaho

A magnitude 2.7 earthquake struck 7 km SE of Challis, Idaho on Mon, Jan 5, 2015, 6:59 PM MST (01:59 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.8 11 km ESE of Challis, Idaho. This one was a foreshock.

Challis forecast More in Idaho

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The earthquake

Magnitude: 2.7 (ml), micro
Local time: Mon, Jan 5, 2015, 6:59 PM MST
UTC: 2015-01-06 01:59:16 UTC
Depth: 9.8 km (6.1 mi), shallow
Epicenter: 44.458° N, 114.156° 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 III, weak shaking.

How well it is located

Reviewed by a seismologist.

Location uncertainty: About 2.7 km horizontally, 7.8 km in depth
Station coverage gap: 93°
Stations used: 15

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 56 in the 60 days after this one and 66 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 usc000tcbq (also filed as mbmb15089698, mb15089698). Read Tue, Sep 22, 2026, 12:13 PM UTC.