M1.9 earthquake 55 km W of Salmon, Idaho
A magnitude 1.9 earthquake struck 55 km W of Salmon, Idaho on Sun, Jul 31, 2016, 4:05 PM MDT (22:05 UTC), 22 km (14 mi) below the surface.
A larger quake followed: M2.1 10 km SE 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
- 1.9 (ml), micro
- Local time
- UTC
- 2016-07-31 22:05:53 UTC
- Depth
- 22.3 km (13.9 mi), shallow
- Epicenter
- 45.106° N, 114.597° 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, 3.2 km in depth
- Magnitude uncertainty
- ±0.20
- Depth from
- From location
- Station coverage gap
- 95°
- Stations used
- 13
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 6 in the 30 days before it.
After
- 2.110 km SE of Challis, Idaho · 3711 days ago · 6 km deep · 82 km away
- 1.719 km NNW of Clayton, Idaho · 3682 days ago · 7 km deep · 76 km away
- 1.717 km SE of Challis, Idaho · 3679 days ago · 4 km deep · 90 km away
- 1.912 km SE of Challis, Idaho · 3657 days ago · 10 km deep · 84 km away
Before
- 1.716 km NW of Challis, Idaho · 3716 days ago · 3 km deep · 57 km away
- 2.013 km SE of Challis, Idaho · 3734 days ago · 5 km deep · 85 km away
- 1.710 km NW of Challis, Idaho · 3736 days ago · 3 km deep · 63 km away
- 1.69 km NNW of Challis, Idaho · 3740 days ago · 7 km deep · 64 km away
- 1.6Idaho-Montana border region · 3740 days ago · 5 km deep · 99 km away
- 1.98 km NNW of Challis, Idaho · 3741 days ago · 6 km deep · 64 km away
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event mb80163934. Read Wed, Sep 30, 2026, 9:52 AM UTC.