M2.8 earthquake 27 km SE of Clayton, Idaho
A magnitude 2.8 earthquake struck 27 km SE of Clayton, Idaho on Tue, Aug 6, 1985, 1:32 PM MDT (19:32 UTC), 5 km (3 mi) below the surface.
A larger quake followed: M3.0 10 km SSW 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
- 2.8 (ml), micro
- Local time
- UTC
- 1985-08-06 19:32:00 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 44.057° N, 114.195° 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: 10 in the 60 days after this one and 6 in the 30 days before it.
After
- 3.010 km SSW of Challis, Idaho · 15014 days ago · 5 km deep · 41 km away
- 3.123 km E of Clayton, Idaho · 15013 days ago · 5 km deep · 24 km away
- 2.75 km ESE of Challis, Idaho · 15005 days ago · 5 km deep · 47 km away
- 3.117 km N of Clayton, Idaho · 15000 days ago · 5 km deep · 43 km away
- 3.62 km SSE of Challis, Idaho · 15000 days ago · 5 km deep · 47 km away
- 3.112 km SW of Challis, Idaho · 15000 days ago · 5 km deep · 43 km away
- 3.38 km S of Challis, Idaho · 14997 days ago · 5 km deep · 41 km away
- 3.021 km ESE of Clayton, Idaho · 14993 days ago · 5 km deep · 17 km away
- 2.819 km E of Clayton, Idaho · 14974 days ago · 5 km deep · 23 km away
- 2.88 km SSW of Challis, Idaho · 14973 days ago · 5 km deep · 42 km away
Before
- 3.120 km ENE of Clayton, Idaho · 15031 days ago · 5 km deep · 28 km away
- 3.511 km ESE of Challis, Idaho · 15039 days ago · 5 km deep · 48 km away
- 3.624 km SSE of Stanley, Idaho · 15040 days ago · 5 km deep · 51 km away
- 2.824 km SSE of Clayton, Idaho · 15043 days ago · 5 km deep · 11 km away
- 3.026 km SE of Stanley, Idaho · 15043 days ago · 5 km deep · 42 km away
- 3.320 km ESE of Challis, Idaho · 15051 days ago · 5 km deep · 45 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0002hew. Read Tue, Sep 22, 2026, 10:57 AM UTC.