Idaho earthquakes

M2.4 earthquake 38 km N of Challis, Idaho

A magnitude 2.4 earthquake struck 38 km N of Challis, Idaho on Wed, Jun 20, 2018, 2:04 AM MDT (08:04 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.2 9 km NNW of Stanley, 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
2.4 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2018-06-20 08:04:52 UTC
Depth
16.1 km (10.0 mi), shallow
Epicenter
44.851° N, 114.284° 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, 3.5 km in depth
Magnitude uncertainty
±0.26
Depth from
From location
Station coverage gap
85°
Stations used
17

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 34 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 1.739 km N of Challis, Idaho · 3027 days ago · 7 km deep · 3 km away
  2. 1.613 km W of Clayton, Idaho · 3026 days ago · 4 km deep · 68 km away
  3. 2.344 km WSW of Salmon, Idaho · 3025 days ago · 6 km deep · 24 km away
  4. 2.044 km WSW of Salmon, Idaho · 3022 days ago · 4 km deep · 25 km away
  5. 1.915 km W of Clayton, Idaho · 3018 days ago · 6 km deep · 69 km away
  6. 2.010 km N of Stanley, Idaho · 3006 days ago · 4 km deep · 80 km away
  7. 1.75 km N of Stanley, Idaho · 3006 days ago · 6 km deep · 84 km away
  8. 1.69 km N of Stanley, Idaho · 3005 days ago · 4 km deep · 81 km away
  9. 1.910 km N of Stanley, Idaho · 3004 days ago · 8 km deep · 80 km away
  10. 2.18 km NNW of Stanley, Idaho · 3004 days ago · 7 km deep · 82 km away
  11. 2.310 km N of Stanley, Idaho · 3004 days ago · 5 km deep · 79 km away
  12. 2.46 km N of Stanley, Idaho · 3004 days ago · 5 km deep · 83 km away
  13. 1.79 km N of Stanley, Idaho · 3004 days ago · 7 km deep · 81 km away
  14. 3.29 km NNW of Stanley, Idaho · 3004 days ago · 5 km deep · 82 km away · felt by 8
  15. 2.67 km NNW of Stanley, Idaho · 3004 days ago · 5 km deep · 85 km away
  16. 2.4southern Idaho · 3004 days ago · 7 km deep · 81 km away
  17. 2.48 km N of Stanley, Idaho · 3004 days ago · 6 km deep · 82 km away
  18. 2.16 km N of Stanley, Idaho · 3004 days ago · 10 km deep · 82 km away
  19. 1.89 km N of Stanley, Idaho · 3004 days ago · 13 km deep · 80 km away
  20. 2.47 km NNW of Stanley, Idaho · 3004 days ago · 5 km deep · 83 km away
  21. 2.09 km NNW of Stanley, Idaho · 3003 days ago · 5 km deep · 82 km away
  22. 1.68 km N of Stanley, Idaho · 3003 days ago · 3 km deep · 82 km away
  23. 2.07 km N of Stanley, Idaho · 3003 days ago · 6 km deep · 82 km away
  24. 1.910 km N of Stanley, Idaho · 3003 days ago · 9 km deep · 80 km away
  25. 2.78 km NNW of Stanley, Idaho · 3003 days ago · 5 km deep · 82 km away
  26. 1.79 km NNW of Stanley, Idaho · 3003 days ago · 3 km deep · 82 km away
  27. 1.79 km NNW of Stanley, Idaho · 3003 days ago · 5 km deep · 82 km away
  28. 2.121 km NNW of Clayton, Idaho · 2994 days ago · 12 km deep · 52 km away
  29. 1.752 km NW of Challis, Idaho · 2979 days ago · 7 km deep · 27 km away
  30. 2.212 km W of Clayton, Idaho · 2977 days ago · 12 km deep · 69 km away
  31. 2.132 km NNW of Challis, Idaho · 2974 days ago · 5 km deep · 16 km away
  32. 1.727 km S of Clayton, Idaho · 2972 days ago · 4 km deep · 94 km away
  33. 1.931 km NNW of Challis, Idaho · 2971 days ago · 9 km deep · 17 km away
  34. 2.426 km NE of Challis, Idaho · 2969 days ago · 5 km deep · 34 km away

Before

  1. 2.413 km WNW of Clayton, Idaho · 3027 days ago · 12 km deep · 67 km away
  2. 2.723 km WSW of Challis, Idaho · 3045 days ago · 5 km deep · 48 km away
  3. 2.031 km W of Challis, Idaho · 3047 days ago · 5 km deep · 45 km away
  4. 1.923 km NW of Clayton, Idaho · 3049 days ago · 4 km deep · 52 km away
  5. 2.1southern Idaho · 3049 days ago · 6 km deep · 52 km away
  6. 2.722 km NNW of Clayton, Idaho · 3049 days ago · 5 km deep · 48 km away
  7. 1.916 km NNW of Stanley, Idaho · 3053 days ago · 11 km deep · 82 km away
  8. 2.316 km NNW of Stanley, Idaho · 3054 days ago · 19 km deep · 82 km away
  9. 2.116 km NNW of Stanley, Idaho · 3054 days ago · 18 km deep · 83 km away
  10. 2.011 km WNW of Clayton, Idaho · 3054 days ago · 8 km deep · 67 km away
  11. 1.630 km NW of Leadore, Idaho · 3055 days ago · 7 km deep · 50 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80298779. Read Sat, Oct 3, 2026, 6:03 AM UTC.