M3.2 earthquake 19 km NNW of Leadore, Idaho
A magnitude 3.2 earthquake struck 19 km NNW of Leadore, Idaho on Mon, Feb 11, 1985, 9:14 PM MST (04:14 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M4.5 6 km NE 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
- 3.2 (ml), minor
- Local time
- UTC
- 1985-02-12 04:14:47 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 44.856° N, 113.410° 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: 9 in the 60 days after this one and 7 in the 30 days before it.
After
- 3.023 km S of Leadore, Idaho · 15196 days ago · 5 km deep · 43 km away
- 3.33 km E of Challis, Idaho · 15190 days ago · 10 km deep · 73 km away
- 3.14 km SE of Challis, Idaho · 15188 days ago · 10 km deep · 74 km away
- 4.56 km NE of Challis, Idaho · 15170 days ago · 10 km deep · 70 km away
- 3.539 km ESE of Challis, Idaho · 15164 days ago · 5 km deep · 63 km away
- 3.441 km ESE of Challis, Idaho · 15164 days ago · 5 km deep · 69 km away
- 3.130 km NW of Mackay, Idaho · 15156 days ago · 5 km deep · 88 km away
- 3.214 km ENE of Clayton, Idaho · 15146 days ago · 10 km deep · 89 km away
- 3.031 km WNW of Lima, Montana · 15146 days ago · 5 km deep · 39 km away
Before
- 3.85 km S of Challis, Idaho · 15204 days ago · 10 km deep · 79 km away
- 3.710 km SSE of Challis, Idaho · 15208 days ago · 10 km deep · 78 km away
- 4.76 km NE of Challis, Idaho · 15209 days ago · 10 km deep · 69 km away
- 3.410 km N of Clayton, Idaho · 15209 days ago · 10 km deep · 97 km away
- 3.88 km WSW of Challis, Idaho · 15209 days ago · 10 km deep · 84 km away
- 3.722 km NNE of Challis, Idaho · 15228 days ago · 10 km deep · 61 km away
- 3.415 km N of Challis, Idaho · 15233 days ago · 10 km deep · 66 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002bu5. Read Mon, Sep 28, 2026, 8:52 AM UTC.