Idaho earthquakes

M1.6 earthquake 15 km WSW of Challis, Idaho

A magnitude 1.6 earthquake struck 15 km WSW of Challis, Idaho on Sun, Sep 10, 2017, 7:55 AM MDT (13:55 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.7 32 km NNE of Lowman, 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
1.6 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2017-09-10 13:55:37 UTC
Depth
6.7 km (4.2 mi), shallow
Epicenter
44.449° N, 114.411° 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 0.9 km horizontally, 3.2 km in depth
Magnitude uncertainty
±0.21
Depth from
From location
Station coverage gap
130°
Stations used
8

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 6 in the 30 days before it.

After

  1. 1.911 km W of Clayton, Idaho · 3307 days ago · 10 km deep · 24 km away
  2. 2.19 km N of Stanley, Idaho · 3298 days ago · 10 km deep · 44 km away
  3. 2.18 km N of Stanley, Idaho · 3298 days ago · 4 km deep · 45 km away
  4. 2.6southern Idaho · 3292 days ago · 5 km deep · 28 km away · felt by 1
  5. 1.614 km W of Clayton, Idaho · 3284 days ago · 4 km deep · 25 km away
  6. 1.913 km W of Clayton, Idaho · 3275 days ago · 4 km deep · 23 km away
  7. 2.732 km NNE of Lowman, Idaho · 3275 days ago · 13 km deep · 84 km away · felt by 1
  8. 1.714 km SE of Challis, Idaho · 3273 days ago · 13 km deep · 24 km away
  9. 1.86 km NW of Challis, Idaho · 3260 days ago · 6 km deep · 15 km away
  10. 2.025 km SE of Challis, Idaho · 3259 days ago · 7 km deep · 33 km away
  11. 1.722 km SSW of Clayton, Idaho · 3250 days ago · 9 km deep · 42 km away
  12. 2.222 km SSW of Clayton, Idaho · 3250 days ago · 6 km deep · 42 km away

Before

  1. 1.514 km W of Clayton, Idaho · 3324 days ago · 4 km deep · 24 km away
  2. 2.09 km NNE of Challis, Idaho · 3326 days ago · 10 km deep · 24 km away
  3. 1.914 km W of Clayton, Idaho · 3330 days ago · 5 km deep · 24 km away
  4. 1.910 km NW of Challis, Idaho · 3336 days ago · 5 km deep · 17 km away
  5. 1.517 km WSW of Challis, Idaho · 3338 days ago · 8 km deep · 4 km away
  6. 2.425 km WNW of Challis, Idaho · 3339 days ago · 4 km deep · 20 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80254079. Read Sat, Oct 3, 2026, 3:36 AM UTC.