Idaho earthquakes

M1.9 earthquake 12 km SE of Challis, Idaho

A magnitude 1.9 earthquake struck 12 km SE of Challis, Idaho on Sun, Sep 25, 2016, 5:56 AM MDT (11:56 UTC), 10 km (6 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
1.9 (ml), micro
Local time
UTC
2016-09-25 11:56:26 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
44.438° N, 114.111° 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 1.0 km horizontally, 1.8 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
100°
Stations used
9

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 1.729 km ESE of Clayton, Idaho · 3649 days ago · 5 km deep · 30 km away
  2. 1.916 km SSE of Challis, Idaho · 3643 days ago · 5 km deep · 8 km away
  3. 1.814 km NE of Challis, Idaho · 3639 days ago · 5 km deep · 19 km away
  4. 1.72 km NW of Challis, Idaho · 3639 days ago · 5 km deep · 14 km away
  5. 1.68 km NNW of Challis, Idaho · 3636 days ago · 3 km deep · 20 km away
  6. 2.226 km ENE of Bellevue, Idaho · 3635 days ago · 3 km deep · 97 km away
  7. 2.21 km ENE of Challis, Idaho · 3633 days ago · 13 km deep · 12 km away
  8. 2.214 km W of Clayton, Idaho · 3631 days ago · 8 km deep · 42 km away
  9. 1.622 km ESE of Leadore, Idaho · 3626 days ago · 5 km deep · 85 km away
  10. 1.734 km WNW of Challis, Idaho · 3610 days ago · 1 km deep · 46 km away
  11. 1.635 km ESE of Clayton, Idaho · 3610 days ago · 5 km deep · 31 km away
  12. 1.933 km SW of Lima, Montana · 3600 days ago · 6 km deep · 95 km away

Before

  1. 1.717 km SE of Challis, Idaho · 3679 days ago · 4 km deep · 7 km away
  2. 1.719 km NNW of Clayton, Idaho · 3681 days ago · 7 km deep · 30 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80175769. Read Wed, Sep 30, 2026, 2:39 AM UTC.