M2.3 earthquake 7 km E of Challis, Idaho
A magnitude 2.3 earthquake struck 7 km E of Challis, Idaho on Sat, Aug 8, 2026, 10:27 PM MDT (04:27 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M3.3 21 km WNW 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
- 2.3 (ml), micro
- Local time
- UTC
- 2026-08-09 04:27:02 UTC
- Depth
- 10.4 km (6.5 mi), shallow
- Epicenter
- 44.507° N, 114.138° 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 2.0 km horizontally, 7.3 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 58°
- Stations used
- 30
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 since this one and 1 in the 30 days before it.
After
- 2.823 km WNW of Stanley, Idaho · 49 days ago · 15 km deep · 90 km away
- 1.652 km NNW of Challis, Idaho · 49 days ago · 12 km deep · 56 km away
- 2.08 km SSW of Challis, Idaho · 44 days ago · 9 km deep · 14 km away
- 1.725 km SSE of Challis, Idaho · 34 days ago · 9 km deep · 23 km away
- 2.94 km NNE of Stanley, Idaho · 25 days ago · 10 km deep · 68 km away · felt by 5
- 3.321 km WNW of Stanley, Idaho · 24 days ago · 10 km deep · 85 km away · felt by 3
- 3.223 km NW of Stanley, Idaho · 18 days ago · 10 km deep · 84 km away
Before
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000tjcs (also filed as mb90204648). Read Wed, Sep 30, 2026, 7:07 AM UTC.