Idaho earthquakes

M2.0 earthquake 14 km SE of Challis, Idaho

A magnitude 2.0 earthquake struck 14 km SE of Challis, Idaho on Sat, Oct 10, 2015, 2:21 AM MDT (08:21 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.0 8 km ESE of Challis, 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), micro
Local time
UTC
2015-10-10 08:21:59 UTC
Depth
10.2 km (6.4 mi), shallow
Epicenter
44.418° N, 114.096° W
Region
Idaho
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 3.2 km horizontally, 2.8 km in depth
Magnitude uncertainty
±0.16
Station coverage gap
65°
Stations used
13

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 49 in the 60 days after this one and 15 in the 30 days before it.

After

  1. 1.929 km N of Sun Valley, Idaho · 4007 days ago · 10 km deep · 56 km away
  2. 1.814 km SE of Challis, Idaho · 4006 days ago · 11 km deep · 1 km away
  3. 1.632 km ESE of Clayton, Idaho · 4005 days ago · 4 km deep · 26 km away
  4. 2.113 km SE of Challis, Idaho · 3999 days ago · 10 km deep · 2 km away
  5. 1.722 km ESE of Challis, Idaho · 3999 days ago · 9 km deep · 9 km away
  6. 2.5southern Idaho · 3999 days ago · 4 km deep · 3 km away
  7. 2.07 km ESE of Challis, Idaho · 3997 days ago · 9 km deep · 8 km away
  8. 2.510 km ESE of Challis, Idaho · 3996 days ago · 11 km deep · 5 km away
  9. 3.08 km ESE of Challis, Idaho · 3995 days ago · 7 km deep · 7 km away · felt by 1
  10. 2.711 km NNW of Challis, Idaho · 3993 days ago · 4 km deep · 25 km away · felt by 1
  11. 2.110 km NNE of Stanley, Idaho · 3992 days ago · -1 km deep · 64 km away
  12. 2.411 km NNE of Stanley, Idaho · 3989 days ago · 8 km deep · 63 km away
  13. 1.615 km SE of Challis, Idaho · 3987 days ago · 6 km deep · 1 km away
  14. 1.914 km SE of Challis, Idaho · 3987 days ago · 9 km deep · 1 km away
  15. 1.832 km N of Mackay, Idaho · 3985 days ago · 10 km deep · 42 km away
  16. 1.65 km NNW of Challis, Idaho · 3985 days ago · -3 km deep · 20 km away
  17. 1.810 km NNE of Stanley, Idaho · 3979 days ago · -1 km deep · 64 km away
  18. 1.626 km SSW of Clayton, Idaho · 3978 days ago · 14 km deep · 53 km away
  19. 1.823 km NNW of Challis, Idaho · 3977 days ago · -3 km deep · 37 km away
  20. 2.021 km NNW of Challis, Idaho · 3973 days ago · 4 km deep · 35 km away
  21. 2.413 km ESE of Challis, Idaho · 3970 days ago · 11 km deep · 2 km away
  22. 2.013 km SE of Challis, Idaho · 3965 days ago · 7 km deep · 2 km away
  23. 1.611 km SE of Challis, Idaho · 3965 days ago · 4 km deep · 3 km away
  24. 1.911 km ESE of Challis, Idaho · 3959 days ago · 7 km deep · 3 km away
  25. 1.69 km NNW of Challis, Idaho · 3956 days ago · 5 km deep · 24 km away
  26. 1.919 km NW of Stanley, Idaho · 3954 days ago · 20 km deep · 81 km away
  27. 1.7southern Idaho · 3953 days ago · 3 km deep · 24 km away
  28. 1.612 km SE of Challis, Idaho · 3950 days ago · 5 km deep · 2 km away
  29. 1.53 km NNW of Challis, Idaho · 3948 days ago · 6 km deep · 17 km away
  30. 1.64 km NNW of Challis, Idaho · 3948 days ago · 3 km deep · 19 km away
  31. 2.46 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 20 km away
  32. 1.84 km NNW of Challis, Idaho · 3948 days ago · 4 km deep · 19 km away
  33. 2.66 km NW of Challis, Idaho · 3948 days ago · 5 km deep · 21 km away
  34. 2.16 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 21 km away
  35. 2.76 km NW of Challis, Idaho · 3948 days ago · 5 km deep · 21 km away · felt by 1
  36. 1.7southern Idaho · 3948 days ago · 1 km deep · 18 km away
  37. 1.54 km NNW of Challis, Idaho · 3948 days ago · 1 km deep · 18 km away
  38. 2.4southern Idaho · 3948 days ago · 6 km deep · 20 km away
  39. 1.82 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 17 km away
  40. 1.62 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 17 km away
  41. 1.93 km NNW of Challis, Idaho · 3948 days ago · 6 km deep · 18 km away
  42. 1.71 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 15 km away
  43. 1.82 km NW of Challis, Idaho · 3948 days ago · 5 km deep · 17 km away
  44. 2.76 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 21 km away
  45. 1.86 km NNW of Challis, Idaho · 3948 days ago · 3 km deep · 20 km away
  46. 2.06 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 21 km away
  47. 1.95 km NNW of Challis, Idaho · 3948 days ago · 5 km deep · 20 km away
  48. 2.55 km NNW of Challis, Idaho · 3948 days ago · 7 km deep · 20 km away
  49. 1.92 km N of Challis, Idaho · 3948 days ago · 6 km deep · 17 km away

Before

  1. 1.94 km NNW of Challis, Idaho · 4010 days ago · -1 km deep · 19 km away
  2. 1.522 km WNW of Clayton, Idaho · 4010 days ago · 4 km deep · 45 km away
  3. 2.122 km WNW of Clayton, Idaho · 4010 days ago · 7 km deep · 44 km away
  4. 2.011 km SE of Challis, Idaho · 4014 days ago · 6 km deep · 4 km away
  5. 1.629 km N of Sun Valley, Idaho · 4016 days ago · 7 km deep · 56 km away
  6. 1.64 km NNW of Challis, Idaho · 4026 days ago · 8 km deep · 19 km away
  7. 1.8southern Idaho · 4026 days ago · 10 km deep · 19 km away
  8. 2.826 km W of Challis, Idaho · 4027 days ago · 5 km deep · 39 km away
  9. 1.914 km W of Clayton, Idaho · 4027 days ago · 6 km deep · 42 km away
  10. 1.513 km W of Clayton, Idaho · 4029 days ago · 10 km deep · 43 km away
  11. 2.013 km W of Clayton, Idaho · 4029 days ago · 9 km deep · 42 km away
  12. 3.310 km SE of Challis, Idaho · 4030 days ago · 10 km deep · 4 km away · felt by 4
  13. 2.030 km E of Clayton, Idaho · 4031 days ago · 5 km deep · 23 km away
  14. 1.913 km SE of Challis, Idaho · 4034 days ago · 13 km deep · 1 km away
  15. 2.524 km NW of Clayton, Idaho · 4038 days ago · 8 km deep · 45 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10003mp8 (also filed as mb80100914). Read Wed, Sep 30, 2026, 9:07 AM UTC.