Idaho earthquakes

M3.5 earthquake 9 km SE of Challis, Idaho

A magnitude 3.5 earthquake struck 9 km SE of Challis, Idaho on Sat, Jan 3, 2015, 6:25 PM MST (01:25 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M3.8 5 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
3.5 (ml), minor
Local time
UTC
2015-01-04 01:25:13 UTC
Depth
11.7 km (7.3 mi), shallow
Epicenter
44.448° N, 114.142° W
Region
Idaho
Strongest shaking
III, weak shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
III, weak shaking
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

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 4.9 km horizontally, 7.2 km in depth
Station coverage gap
64°
Stations used
34

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 77 in the 60 days after this one and 44 in the 30 days before it.

After

  1. 2.77 km SE of Challis, Idaho · 4286 days ago · 10 km deep · 2 km away
  2. 2.610 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 1 km away
  3. 3.07 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 2 km away · felt by 7
  4. 2.110 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 1 km away
  5. 2.1southern Idaho · 4286 days ago · 9 km deep · 1 km away
  6. 2.37 km SE of Challis, Idaho · 4286 days ago · 11 km deep · 2 km away
  7. 3.69 km SE of Challis, Idaho · 4286 days ago · 11 km deep · 1 km away · felt by 3
  8. 2.78 km SE of Challis, Idaho · 4286 days ago · 11 km deep · 1 km away
  9. 3.85 km ESE of Challis, Idaho · 4286 days ago · 11 km deep · 4 km away · felt by 9
  10. 2.38 km SE of Challis, Idaho · 4286 days ago · 11 km deep · 1 km away
  11. 2.57 km SE of Challis, Idaho · 4286 days ago · 9 km deep · 2 km away · felt by 1
  12. 3.86 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 3 km away · felt by 1
  13. 3.75 km ESE of Challis, Idaho · 4286 days ago · 6 km deep · 4 km away · felt by 13
  14. 2.88 km SE of Challis, Idaho · 4285 days ago · 10 km deep · 1 km away
  15. 2.711 km SE of Challis, Idaho · 4285 days ago · 13 km deep · 2 km away
  16. 2.412 km SE of Challis, Idaho · 4285 days ago · 13 km deep · 3 km away
  17. 2.59 km SE of Challis, Idaho · 4285 days ago · 11 km deep · 1 km away
  18. 1.910 km SE of Challis, Idaho · 4285 days ago · 9 km deep · 1 km away
  19. 2.112 km SE of Challis, Idaho · 4285 days ago · 11 km deep · 3 km away
  20. 2.112 km SE of Challis, Idaho · 4285 days ago · 13 km deep · 3 km away
  21. 2.311 km SE of Challis, Idaho · 4285 days ago · 13 km deep · 3 km away
  22. 2.77 km SE of Challis, Idaho · 4284 days ago · 10 km deep · 2 km away · felt by 1
  23. 1.914 km SE of Challis, Idaho · 4284 days ago · 11 km deep · 5 km away
  24. 2.310 km SE of Challis, Idaho · 4284 days ago · 11 km deep · 1 km away
  25. 2.29 km SE of Challis, Idaho · 4284 days ago · 10 km deep · 1 km away
  26. 2.69 km SE of Challis, Idaho · 4284 days ago · 9 km deep · 1 km away
  27. 2.113 km NW of Challis, Idaho · 4283 days ago · 7 km deep · 23 km away
  28. 2.28 km SE of Challis, Idaho · 4283 days ago · 13 km deep · 1 km away
  29. 2.210 km SE of Challis, Idaho · 4283 days ago · 12 km deep · 1 km away
  30. 2.110 km SE of Challis, Idaho · 4283 days ago · 11 km deep · 1 km away
  31. 2.19 km SE of Challis, Idaho · 4283 days ago · 11 km deep · 0 km away
  32. 2.69 km SE of Challis, Idaho · 4280 days ago · 13 km deep · 1 km away
  33. 3.811 km ESE of Challis, Idaho · 4280 days ago · 10 km deep · 3 km away · felt by 1
  34. 3.011 km ESE of Challis, Idaho · 4280 days ago · 10 km deep · 3 km away · felt by 1
  35. 3.6southern Idaho · 4279 days ago · 13 km deep · 1 km away · felt by 3
  36. 2.610 km SE of Challis, Idaho · 4279 days ago · 13 km deep · 1 km away
  37. 2.59 km SE of Challis, Idaho · 4279 days ago · 12 km deep · 1 km away
  38. 2.310 km SE of Challis, Idaho · 4278 days ago · 11 km deep · 1 km away
  39. 2.413 km NW of Challis, Idaho · 4278 days ago · 8 km deep · 23 km away
  40. 2.210 km SE of Challis, Idaho · 4278 days ago · 12 km deep · 1 km away
  41. 2.310 km SE of Challis, Idaho · 4278 days ago · 12 km deep · 1 km away
  42. 2.210 km SE of Challis, Idaho · 4276 days ago · 9 km deep · 1 km away
  43. 2.39 km SE of Challis, Idaho · 4275 days ago · 10 km deep · 1 km away
  44. 2.79 km SE of Challis, Idaho · 4275 days ago · 13 km deep · 0 km away
  45. 2.437 km NW of Challis, Idaho · 4274 days ago · 9 km deep · 47 km away
  46. 3.511 km SE of Challis, Idaho · 4274 days ago · 13 km deep · 2 km away · felt by 1
  47. 3.29 km SE of Challis, Idaho · 4274 days ago · 12 km deep · 1 km away
  48. 2.311 km SE of Challis, Idaho · 4274 days ago · 9 km deep · 2 km away
  49. 2.79 km SE of Challis, Idaho · 4274 days ago · 14 km deep · 1 km away
  50. 2.49 km SE of Challis, Idaho · 4274 days ago · 12 km deep · 1 km away
  51. 2.111 km SE of Challis, Idaho · 4273 days ago · 8 km deep · 2 km away
  52. 2.39 km SE of Challis, Idaho · 4273 days ago · 12 km deep · 1 km away
  53. 2.853 km NW of Challis, Idaho · 4269 days ago · 11 km deep · 62 km away
  54. 2.654 km NW of Challis, Idaho · 4269 days ago · 9 km deep · 63 km away
  55. 2.853 km NW of Challis, Idaho · 4269 days ago · 12 km deep · 62 km away
  56. 2.654 km NW of Challis, Idaho · 4269 days ago · 11 km deep · 63 km away
  57. 2.353 km NW of Challis, Idaho · 4268 days ago · 10 km deep · 63 km away
  58. 2.451 km WNW of Challis, Idaho · 4268 days ago · 12 km deep · 61 km away
  59. 3.622 km SE of Challis, Idaho · 4264 days ago · 13 km deep · 13 km away · felt by 3
  60. 2.315 km NNW of Challis, Idaho · 4261 days ago · 3 km deep · 24 km away

The first 60 of 77.

Before

  1. 2.87 km SE of Challis, Idaho · 4286 days ago · 10 km deep · 2 km away
  2. 2.28 km SE of Challis, Idaho · 4286 days ago · 11 km deep · 1 km away
  3. 3.310 km SE of Challis, Idaho · 4286 days ago · 13 km deep · 1 km away · felt by 5
  4. 3.010 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 1 km away
  5. 3.08 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 1 km away · felt by 4
  6. 2.110 km SE of Challis, Idaho · 4286 days ago · 13 km deep · 1 km away
  7. 3.19 km SE of Challis, Idaho · 4286 days ago · 13 km deep · 1 km away
  8. 3.39 km SE of Challis, Idaho · 4286 days ago · 14 km deep · 0 km away · felt by 3
  9. 2.09 km SE of Challis, Idaho · 4286 days ago · 11 km deep · 1 km away
  10. 2.610 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 2 km away · felt by 2
  11. 2.18 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 1 km away
  12. 2.110 km SE of Challis, Idaho · 4286 days ago · 11 km deep · 1 km away
  13. 2.48 km SE of Challis, Idaho · 4286 days ago · 13 km deep · 1 km away
  14. 2.87 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 2 km away
  15. 2.812 km SE of Challis, Idaho · 4286 days ago · 8 km deep · 3 km away
  16. 3.19 km SE of Challis, Idaho · 4286 days ago · 14 km deep · 0 km away · felt by 2
  17. 2.410 km SE of Challis, Idaho · 4286 days ago · 13 km deep · 1 km away
  18. 2.19 km SE of Challis, Idaho · 4286 days ago · 12 km deep · 0 km away
  19. 5.09 km E of Challis, Idaho · 4286 days ago · 9 km deep · 7 km away · felt by 569
  20. 2.245 km WSW of Salmon, Idaho · 4287 days ago · 27 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usc000thm7 (also filed as mb15890440). Read Tue, Sep 29, 2026, 1:30 AM UTC.