Idaho earthquakes

M2.5 earthquake 5 km NNW of Challis, Idaho

A magnitude 2.5 earthquake struck 5 km NNW of Challis, Idaho on Tue, Dec 8, 2015, 11:38 PM MST (06:38 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M3.8 10 km SE 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
2.5 (ml), micro
Local time
UTC
2015-12-09 06:38:50 UTC
Depth
6.9 km (4.3 mi), shallow
Epicenter
44.551° N, 114.265° 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 2.3 km horizontally, 7.9 km in depth
Magnitude uncertainty
±0.18
Station coverage gap
107°
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: 83 in the 60 days after this one and 30 in the 30 days before it.

After

  1. 1.92 km N of Challis, Idaho · 3945 days ago · 6 km deep · 3 km away
  2. 1.84 km NNW of Challis, Idaho · 3945 days ago · 5 km deep · 1 km away
  3. 1.62 km NNW of Challis, Idaho · 3945 days ago · 5 km deep · 3 km away
  4. 1.96 km NNW of Challis, Idaho · 3945 days ago · 5 km deep · 1 km away
  5. 1.83 km NW of Challis, Idaho · 3945 days ago · 8 km deep · 2 km away
  6. 1.822 km SE of Challis, Idaho · 3944 days ago · 6 km deep · 28 km away
  7. 1.63 km NNW of Challis, Idaho · 3944 days ago · 4 km deep · 3 km away
  8. 1.735 km NW of Mackay, Idaho · 3944 days ago · 5 km deep · 54 km away
  9. 2.25 km NNW of Challis, Idaho · 3944 days ago · 6 km deep · 0 km away
  10. 1.72 km NNW of Challis, Idaho · 3944 days ago · 6 km deep · 4 km away
  11. 1.93 km NNW of Challis, Idaho · 3944 days ago · 5 km deep · 3 km away
  12. 1.63 km N of Challis, Idaho · 3944 days ago · 5 km deep · 3 km away
  13. 2.03 km NNW of Challis, Idaho · 3944 days ago · 9 km deep · 2 km away
  14. 3.37 km NNW of Challis, Idaho · 3944 days ago · 6 km deep · 2 km away · felt by 1
  15. 2.55 km NNW of Challis, Idaho · 3944 days ago · 8 km deep · 0 km away · felt by 1
  16. 1.71 km NNE of Challis, Idaho · 3944 days ago · 9 km deep · 5 km away
  17. 2.26 km NNW of Challis, Idaho · 3944 days ago · 4 km deep · 1 km away
  18. 2.76 km NW of Challis, Idaho · 3944 days ago · 7 km deep · 1 km away
  19. 3.55 km NW of Challis, Idaho · 3944 days ago · 7 km deep · 1 km away · felt by 4
  20. 2.28 km NNW of Challis, Idaho · 3944 days ago · 4 km deep · 3 km away
  21. 2.25 km NNW of Challis, Idaho · 3943 days ago · 7 km deep · 1 km away
  22. 1.74 km NNW of Challis, Idaho · 3943 days ago · 5 km deep · 2 km away
  23. 2.0southern Idaho · 3943 days ago · 7 km deep · 0 km away
  24. 1.65 km NW of Challis, Idaho · 3943 days ago · 6 km deep · 1 km away
  25. 2.66 km NNW of Challis, Idaho · 3943 days ago · 8 km deep · 0 km away
  26. 2.46 km NNW of Challis, Idaho · 3943 days ago · 8 km deep · 1 km away
  27. 2.25 km NNW of Challis, Idaho · 3943 days ago · 8 km deep · 1 km away
  28. 1.75 km NNW of Challis, Idaho · 3943 days ago · 9 km deep · 0 km away
  29. 1.85 km NNW of Challis, Idaho · 3943 days ago · 9 km deep · 0 km away
  30. 1.58 km NW of Challis, Idaho · 3942 days ago · 4 km deep · 3 km away
  31. 1.75 km NNW of Challis, Idaho · 3942 days ago · 5 km deep · 1 km away
  32. 2.06 km NNW of Challis, Idaho · 3942 days ago · 9 km deep · 1 km away
  33. 1.68 km SE of Challis, Idaho · 3941 days ago · 0 km deep · 14 km away
  34. 1.78 km NNW of Challis, Idaho · 3941 days ago · 5 km deep · 3 km away
  35. 2.110 km SE of Challis, Idaho · 3940 days ago · 5 km deep · 16 km away
  36. 1.725 km SE of Challis, Idaho · 3937 days ago · 5 km deep · 31 km away
  37. 2.328 km SE of Challis, Idaho · 3937 days ago · 12 km deep · 34 km away
  38. 1.525 km SE of Challis, Idaho · 3937 days ago · 5 km deep · 31 km away
  39. 1.816 km SE of Challis, Idaho · 3936 days ago · 5 km deep · 22 km away
  40. 1.627 km SE of Challis, Idaho · 3936 days ago · 1 km deep · 33 km away
  41. 1.625 km SE of Challis, Idaho · 3935 days ago · 5 km deep · 31 km away
  42. 2.025 km SE of Challis, Idaho · 3934 days ago · 5 km deep · 31 km away
  43. 1.512 km SE of Challis, Idaho · 3929 days ago · 5 km deep · 18 km away
  44. 2.16 km NNW of Challis, Idaho · 3928 days ago · 7 km deep · 1 km away
  45. 2.46 km NNW of Challis, Idaho · 3928 days ago · 6 km deep · 1 km away
  46. 2.16 km NNW of Challis, Idaho · 3928 days ago · 10 km deep · 1 km away
  47. 1.95 km NNW of Challis, Idaho · 3928 days ago · 8 km deep · 0 km away
  48. 1.86 km NNW of Challis, Idaho · 3928 days ago · 10 km deep · 1 km away
  49. 1.613 km SE of Challis, Idaho · 3927 days ago · 11 km deep · 19 km away
  50. 2.36 km SE of Salmon, Idaho · 3925 days ago · 13 km deep · 74 km away
  51. 1.65 km NW of Challis, Idaho · 3923 days ago · 0 km deep · 1 km away
  52. 1.55 km NNW of Challis, Idaho · 3923 days ago · 8 km deep · 1 km away
  53. 1.64 km NNW of Challis, Idaho · 3921 days ago · 5 km deep · 2 km away
  54. 1.86 km NNW of Challis, Idaho · 3921 days ago · 7 km deep · 1 km away
  55. 1.64 km NNW of Challis, Idaho · 3911 days ago · 5 km deep · 1 km away
  56. 2.313 km SE of Challis, Idaho · 3905 days ago · 7 km deep · 19 km away
  57. 3.810 km SE of Challis, Idaho · 3904 days ago · 8 km deep · 16 km away · felt by 8
  58. 1.614 km W of Challis, Idaho · 3902 days ago · 9 km deep · 13 km away
  59. 1.923 km WNW of Challis, Idaho · 3901 days ago · 1 km deep · 20 km away
  60. 2.123 km WNW of Challis, Idaho · 3901 days ago · 4 km deep · 20 km away

The first 60 of 83.

Before

  1. 1.95 km NNW of Challis, Idaho · 3945 days ago · 5 km deep · 0 km away
  2. 2.06 km NNW of Challis, Idaho · 3945 days ago · 5 km deep · 1 km away
  3. 1.86 km NNW of Challis, Idaho · 3945 days ago · 3 km deep · 1 km away
  4. 2.76 km NNW of Challis, Idaho · 3945 days ago · 5 km deep · 1 km away
  5. 1.82 km NW of Challis, Idaho · 3946 days ago · 5 km deep · 3 km away
  6. 1.71 km NNW of Challis, Idaho · 3946 days ago · 5 km deep · 5 km away
  7. 1.93 km NNW of Challis, Idaho · 3946 days ago · 6 km deep · 2 km away
  8. 1.62 km NNW of Challis, Idaho · 3946 days ago · 5 km deep · 3 km away
  9. 1.82 km NNW of Challis, Idaho · 3946 days ago · 5 km deep · 3 km away
  10. 2.4southern Idaho · 3946 days ago · 6 km deep · 1 km away
  11. 1.54 km NNW of Challis, Idaho · 3946 days ago · 1 km deep · 2 km away
  12. 1.7southern Idaho · 3946 days ago · 1 km deep · 2 km away
  13. 2.76 km NW of Challis, Idaho · 3946 days ago · 5 km deep · 1 km away · felt by 1
  14. 2.16 km NNW of Challis, Idaho · 3946 days ago · 5 km deep · 1 km away
  15. 2.66 km NW of Challis, Idaho · 3946 days ago · 5 km deep · 2 km away
  16. 1.84 km NNW of Challis, Idaho · 3946 days ago · 4 km deep · 1 km away
  17. 2.46 km NNW of Challis, Idaho · 3946 days ago · 5 km deep · 0 km away
  18. 1.64 km NNW of Challis, Idaho · 3946 days ago · 3 km deep · 1 km away
  19. 1.53 km NNW of Challis, Idaho · 3946 days ago · 6 km deep · 3 km away
  20. 1.612 km SE of Challis, Idaho · 3947 days ago · 5 km deep · 18 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20004fwb (also filed as mb80113089). Read Sun, Sep 27, 2026, 1:59 PM UTC.