Idaho earthquakes

M3.0 earthquake 10 km SSW of Challis, Idaho

A magnitude 3.0 earthquake struck 10 km SSW of Challis, Idaho on Wed, Aug 14, 1985, 12:58 AM MDT (06:58 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.1 23 km E of Clayton, Idaho. This one was a foreshock.

Challis forecastMore in Idaho

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
3.0 (ml), minor
Local time
UTC
1985-08-14 06:58:42 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
44.423° N, 114.288° 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: 13 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 3.123 km E of Clayton, Idaho · 15014 days ago · 5 km deep · 22 km away
  2. 2.75 km ESE of Challis, Idaho · 15006 days ago · 5 km deep · 12 km away
  3. 3.117 km N of Clayton, Idaho · 15000 days ago · 5 km deep · 10 km away
  4. 3.62 km SSE of Challis, Idaho · 15000 days ago · 5 km deep · 9 km away
  5. 3.112 km SW of Challis, Idaho · 15000 days ago · 5 km deep · 5 km away
  6. 3.38 km S of Challis, Idaho · 14998 days ago · 5 km deep · 5 km away
  7. 3.021 km ESE of Clayton, Idaho · 14994 days ago · 5 km deep · 27 km away
  8. 2.819 km E of Clayton, Idaho · 14974 days ago · 5 km deep · 20 km away
  9. 2.88 km SSW of Challis, Idaho · 14974 days ago · 5 km deep · 2 km away
  10. 2.414 km NE of Clayton, Idaho · 14962 days ago · 5 km deep · 9 km away
  11. 2.415 km S of Challis, Idaho · 14962 days ago · 5 km deep · 7 km away
  12. 3.37 km SE of Challis, Idaho · 14959 days ago · 5 km deep · 10 km away
  13. 3.18 km SE of Challis, Idaho · 14959 days ago · 5 km deep · 11 km away

Before

  1. 2.827 km SE of Clayton, Idaho · 15022 days ago · 5 km deep · 41 km away
  2. 3.120 km ENE of Clayton, Idaho · 15032 days ago · 5 km deep · 17 km away
  3. 3.511 km ESE of Challis, Idaho · 15039 days ago · 5 km deep · 17 km away
  4. 3.624 km SSE of Stanley, Idaho · 15040 days ago · 5 km deep · 63 km away
  5. 3.638 km WSW of Salmon, Idaho · 15043 days ago · 5 km deep · 69 km away
  6. 3.537 km WSW of Salmon, Idaho · 15043 days ago · 5 km deep · 73 km away
  7. 2.824 km SSE of Clayton, Idaho · 15043 days ago · 5 km deep · 43 km away
  8. 3.026 km SE of Stanley, Idaho · 15043 days ago · 5 km deep · 55 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002hqk. Read Tue, Sep 22, 2026, 8:52 PM UTC.