M4.1 earthquake 18 km NW of Challis, Idaho
A magnitude 4.1 earthquake struck 18 km NW of Challis, Idaho on Tue, Aug 10, 1982, 1:35 PM MDT (19:35 UTC), 5 km (3 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.1 (ml), light
- Local time
- UTC
- 1982-08-10 19:35:46 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 44.616° N, 114.398° W
- Region
- Idaho
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0001nyc. Read Tue, Sep 22, 2026, 8:26 PM UTC.