Idaho earthquakes

M2.0 earthquake 25 km SE of Challis, Idaho

A magnitude 2.0 earthquake struck 25 km SE of Challis, Idaho on Mon, Oct 30, 2017, 6:14 PM MDT (00:14 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.7 6 km WNW 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
2.0 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2017-10-31 00:14:15 UTC
Depth
7.1 km (4.4 mi), shallow
Epicenter
44.322° N, 114.030° 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 1.4 km horizontally, 2.9 km in depth
Magnitude uncertainty
±0.30
Depth from
From location
Station coverage gap
93°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.722 km SSW of Clayton, Idaho · 3252 days ago · 9 km deep · 47 km away
  2. 2.222 km SSW of Clayton, Idaho · 3252 days ago · 6 km deep · 47 km away
  3. 2.422 km SSW of Clayton, Idaho · 3244 days ago · 10 km deep · 47 km away · felt by 4
  4. 1.620 km ENE of Challis, Idaho · 3236 days ago · 9 km deep · 32 km away
  5. 1.622 km SSW of Clayton, Idaho · 3233 days ago · 7 km deep · 47 km away
  6. 2.316 km S of Clayton, Idaho · 3230 days ago · 10 km deep · 36 km away
  7. 1.822 km SSW of Clayton, Idaho · 3229 days ago · 8 km deep · 47 km away
  8. 2.023 km SSW of Clayton, Idaho · 3229 days ago · 14 km deep · 46 km away
  9. 2.021 km SSW of Clayton, Idaho · 3229 days ago · 6 km deep · 47 km away
  10. 2.322 km SSW of Clayton, Idaho · 3229 days ago · 11 km deep · 46 km away
  11. 1.822 km SSW of Clayton, Idaho · 3229 days ago · 6 km deep · 47 km away
  12. 1.921 km SSW of Clayton, Idaho · 3227 days ago · 7 km deep · 46 km away
  13. 2.122 km SSW of Clayton, Idaho · 3227 days ago · 13 km deep · 46 km away
  14. 1.812 km SE of Challis, Idaho · 3222 days ago · 5 km deep · 13 km away
  15. 2.110 km W of Clayton, Idaho · 3212 days ago · 10 km deep · 40 km away
  16. 2.76 km WNW of Clayton, Idaho · 3209 days ago · 10 km deep · 36 km away · felt by 2
  17. 1.824 km SSW of Clayton, Idaho · 3202 days ago · 8 km deep · 49 km away

Before

  1. 1.86 km NW of Challis, Idaho · 3262 days ago · 6 km deep · 32 km away
  2. 1.714 km SE of Challis, Idaho · 3274 days ago · 13 km deep · 11 km away
  3. 1.913 km W of Clayton, Idaho · 3276 days ago · 4 km deep · 43 km away
  4. 1.614 km W of Clayton, Idaho · 3285 days ago · 4 km deep · 44 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80267439. Read Sun, Oct 4, 2026, 3:21 PM UTC.