Idaho earthquakes

M1.9 earthquake 14 km SE of Challis, Idaho

A magnitude 1.9 earthquake struck 14 km SE of Challis, Idaho on Fri, Jul 24, 2015, 5:12 PM MDT (23:12 UTC), 13 km (8 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M3.3 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
1.9 (Mc), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2015-07-24 23:12:14 UTC
Depth
13.0 km (8.1 mi), shallow
Epicenter
44.419° N, 114.099° W
Region
Idaho
Tsunami flag
No
Status
Automatic solution, may be revised

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

An automatic solution; a seismologist may revise it.

Location uncertainty
About 1.4 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
83°
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: 33 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 2.113 km SE of Challis, Idaho · 4087 days ago · 14 km deep · 1 km away
  2. 2.238 km NNE of Challis, Idaho · 4086 days ago · 14 km deep · 43 km away
  3. 2.311 km NW of Challis, Idaho · 4084 days ago · 11 km deep · 26 km away
  4. 2.010 km NW of Challis, Idaho · 4084 days ago · 9 km deep · 25 km away
  5. 1.630 km WNW of Mackay, Idaho · 4066 days ago · 12 km deep · 42 km away
  6. 1.96 km NW of Challis, Idaho · 4064 days ago · 4 km deep · 21 km away
  7. 1.87 km NW of Challis, Idaho · 4063 days ago · 6 km deep · 22 km away
  8. 2.09 km NNE of Stanley, Idaho · 4062 days ago · 13 km deep · 63 km away
  9. 1.68 km NE of Stanley, Idaho · 4062 days ago · 6 km deep · 64 km away
  10. 2.121 km E of Challis, Idaho · 4060 days ago · 13 km deep · 12 km away
  11. 2.15 km NNW of Challis, Idaho · 4059 days ago · 11 km deep · 19 km away
  12. 1.910 km SE of Challis, Idaho · 4058 days ago · 11 km deep · 4 km away
  13. 2.339 km NNW of Challis, Idaho · 4057 days ago · 15 km deep · 53 km away
  14. 2.711 km SE of Challis, Idaho · 4048 days ago · 5 km deep · 3 km away · felt by 1
  15. 2.315 km SE of Challis, Idaho · 4048 days ago · 7 km deep · 1 km away
  16. 2.712 km SE of Challis, Idaho · 4048 days ago · 6 km deep · 2 km away
  17. 2.615 km SE of Challis, Idaho · 4048 days ago · 5 km deep · 2 km away
  18. 1.913 km SE of Challis, Idaho · 4048 days ago · 9 km deep · 2 km away
  19. 1.636 km SSW of Salmon, Idaho · 4048 days ago · 10 km deep · 54 km away
  20. 1.515 km SE of Challis, Idaho · 4048 days ago · 7 km deep · 1 km away
  21. 1.912 km ESE of Challis, Idaho · 4043 days ago · 4 km deep · 3 km away
  22. 2.411 km SE of Challis, Idaho · 4042 days ago · 11 km deep · 3 km away
  23. 2.524 km SE of Challis, Idaho · 4041 days ago · 10 km deep · 11 km away
  24. 2.524 km NW of Clayton, Idaho · 4039 days ago · 8 km deep · 45 km away
  25. 1.913 km SE of Challis, Idaho · 4035 days ago · 13 km deep · 1 km away
  26. 2.030 km E of Clayton, Idaho · 4033 days ago · 5 km deep · 23 km away
  27. 3.310 km SE of Challis, Idaho · 4032 days ago · 10 km deep · 4 km away · felt by 4
  28. 2.013 km W of Clayton, Idaho · 4030 days ago · 9 km deep · 42 km away
  29. 1.513 km W of Clayton, Idaho · 4030 days ago · 10 km deep · 43 km away
  30. 1.914 km W of Clayton, Idaho · 4028 days ago · 6 km deep · 42 km away
  31. 2.826 km W of Challis, Idaho · 4028 days ago · 5 km deep · 39 km away
  32. 1.8southern Idaho · 4028 days ago · 10 km deep · 19 km away
  33. 1.64 km NNW of Challis, Idaho · 4027 days ago · 8 km deep · 19 km away

Before

  1. 2.311 km SE of Challis, Idaho · 4087 days ago · 10 km deep · 3 km away
  2. 2.613 km NW of Challis, Idaho · 4089 days ago · 9 km deep · 27 km away
  3. 1.924 km ENE of Leadore, Idaho · 4095 days ago · 7 km deep · 90 km away
  4. 2.43 km ENE of Challis, Idaho · 4096 days ago · 11 km deep · 13 km away
  5. 2.38 km NW of Challis, Idaho · 4103 days ago · 5 km deep · 22 km away
  6. 1.810 km SE of Challis, Idaho · 4107 days ago · 8 km deep · 4 km away
  7. 2.011 km SSE of Challis, Idaho · 4107 days ago · 13 km deep · 5 km away
  8. 2.38 km ESE of Challis, Idaho · 4107 days ago · 10 km deep · 7 km away
  9. 2.413 km NW of Challis, Idaho · 4113 days ago · 5 km deep · 28 km away
  10. 2.413 km NW of Challis, Idaho · 4113 days ago · 5 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15876140. Read Thu, Oct 1, 2026, 9:18 PM UTC.