Idaho earthquakes

M1.7 earthquake 17 km SE of Challis, Idaho

A magnitude 1.7 earthquake struck 17 km SE of Challis, Idaho on Sat, Sep 3, 2016, 2:55 AM MDT (08:55 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M2.2 14 km W 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
1.7 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2016-09-03 08:55:48 UTC
Depth
3.7 km (2.3 mi), shallow
Epicenter
44.376° N, 114.100° 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 0.4 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.08
Depth from
From location
Station coverage gap
65°
Stations used
15

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 2 in the 30 days before it.

After

  1. 1.912 km SE of Challis, Idaho · 3660 days ago · 10 km deep · 7 km away
  2. 1.729 km ESE of Clayton, Idaho · 3652 days ago · 5 km deep · 23 km away
  3. 1.916 km SSE of Challis, Idaho · 3646 days ago · 5 km deep · 3 km away
  4. 1.814 km NE of Challis, Idaho · 3642 days ago · 5 km deep · 26 km away
  5. 1.72 km NW of Challis, Idaho · 3642 days ago · 5 km deep · 20 km away
  6. 1.68 km NNW of Challis, Idaho · 3639 days ago · 3 km deep · 26 km away
  7. 2.226 km ENE of Bellevue, Idaho · 3638 days ago · 3 km deep · 90 km away
  8. 2.21 km ENE of Challis, Idaho · 3636 days ago · 13 km deep · 18 km away
  9. 2.214 km W of Clayton, Idaho · 3634 days ago · 8 km deep · 40 km away
  10. 1.622 km ESE of Leadore, Idaho · 3629 days ago · 5 km deep · 86 km away

Before

  1. 1.719 km NNW of Clayton, Idaho · 3685 days ago · 7 km deep · 32 km away
  2. 2.324 km E of Clayton, Idaho · 3696 days ago · -3 km deep · 14 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80168234. Read Sat, Oct 3, 2026, 5:49 AM UTC.