M3.0 earthquake 28 km ESE of Leadore, Idaho
A magnitude 3.0 earthquake struck 28 km ESE of Leadore, Idaho on Thu, Dec 12, 1985, 3:26 AM MST (10:26 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M3.1 6 km S 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
- 3.0 (ml), minor
- Local time
- UTC
- 1985-12-12 10:26:40 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 44.546° N, 113.053° 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: 5 in the 60 days after this one and 2 in the 30 days before it.
After
- 2.717 km ENE of Clayton, Idaho · 14892 days ago · 5 km deep · 95 km away
- 3.16 km S of Challis, Idaho · 14860 days ago · 5 km deep · 94 km away
- 4.037 km NW of Mackay, Idaho · 14848 days ago · 5 km deep · 83 km away
- 3.736 km ESE of Clayton, Idaho · 14848 days ago · 5 km deep · 82 km away
- 2.715 km SSE of Challis, Idaho · 14836 days ago · 5 km deep · 87 km away
Before
Earthquakes todayIdaho earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002nt0. Read Tue, Sep 22, 2026, 8:04 PM UTC.