M1.6 earthquake 30 km NW of Challis, Idaho
A magnitude 1.6 earthquake struck 30 km NW of Challis, Idaho on Tue, Apr 18, 2017, 12:06 AM MDT (06:06 UTC), 1 km (1 mi) below the surface.
A larger quake followed: M2.1 32 km WNW of Challis, Idaho. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (ml), micro
- Local time
- UTC
- 2017-04-18 06:06:15 UTC
- Depth
- 1.5 km (0.9 mi), shallow
- Epicenter
- 44.663° N, 114.541° 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 0.5 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 75°
- 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: 8 in the 60 days after this one and 1 in the 30 days before it.
After
- 1.727 km NW of Challis, Idaho · 3453 days ago · 6 km deep · 7 km away
- 1.614 km W of Clayton, Idaho · 3436 days ago · 3 km deep · 46 km away
- 2.132 km WNW of Challis, Idaho · 3429 days ago · 12 km deep · 12 km away
- 2.013 km W of Clayton, Idaho · 3416 days ago · 9 km deep · 44 km away
- 1.518 km NNW of Clayton, Idaho · 3405 days ago · 6 km deep · 28 km away
- 1.637 km NW of Challis, Idaho · 3401 days ago · 1 km deep · 14 km away
- 1.924 km E of Challis, Idaho · 3401 days ago · 3 km deep · 51 km away
- 2.123 km E of Challis, Idaho · 3399 days ago · 9 km deep · 51 km away
Before
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event mb80206154. Read Wed, Sep 30, 2026, 10:23 PM UTC.