M2.0 earthquake 8 km SSW of Challis, Idaho
A magnitude 2.0 earthquake struck 8 km SSW of Challis, Idaho on Mon, Aug 17, 2026, 1:32 AM MDT (07:32 UTC), 9 km (6 mi) below the surface.
A larger quake followed: M2.9 4 km NNE of Stanley, Idaho. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.0 (ml), micro
- Local time
- UTC
- 2026-08-17 07:32:31 UTC
- Depth
- 9.1 km (5.6 mi), shallow
- Epicenter
- 44.430° N, 114.274° 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.
- Location uncertainty
- About 1.8 km horizontally, 1.4 km in depth
- Magnitude uncertainty
- ±0.19
- Depth from
- From location
- Station coverage gap
- 153°
- Stations used
- 10
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 since this one and 4 in the 30 days before it.
After
- 1.725 km SSE of Challis, Idaho · 27 days ago · 9 km deep · 22 km away
- 2.94 km NNE of Stanley, Idaho · 17 days ago · 10 km deep · 55 km away · felt by 5
- 3.323 km NW of Stanley, Idaho · 16 days ago · 10 km deep · 73 km away · felt by 3
- 3.223 km NW of Stanley, Idaho · 11 days ago · 10 km deep · 72 km away
Before
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event mb90205373. Read Tue, Sep 22, 2026, 3:36 PM UTC.