Idaho earthquakes

M2.0 earthquake 10 km NW of Challis, Idaho

A magnitude 2.0 earthquake struck 10 km NW of Challis, Idaho on Mon, Jul 27, 2015, 9:20 PM MDT (03:20 UTC), 9 km (6 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
2.0 (Mc), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2015-07-28 03:20:55 UTC
Depth
9.2 km (5.7 mi), shallow
Epicenter
44.583° N, 114.317° 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 1.0 km horizontally, 1.4 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
112°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.630 km WNW of Mackay, Idaho · 4069 days ago · 12 km deep · 66 km away
  2. 1.96 km NW of Challis, Idaho · 4067 days ago · 4 km deep · 4 km away
  3. 1.87 km NW of Challis, Idaho · 4067 days ago · 6 km deep · 3 km away
  4. 2.09 km NNE of Stanley, Idaho · 4066 days ago · 13 km deep · 55 km away
  5. 1.68 km NE of Stanley, Idaho · 4066 days ago · 6 km deep · 56 km away
  6. 2.121 km E of Challis, Idaho · 4063 days ago · 13 km deep · 30 km away
  7. 2.15 km NNW of Challis, Idaho · 4062 days ago · 11 km deep · 6 km away
  8. 1.910 km SE of Challis, Idaho · 4061 days ago · 11 km deep · 21 km away
  9. 2.339 km NNW of Challis, Idaho · 4060 days ago · 15 km deep · 29 km away
  10. 2.711 km SE of Challis, Idaho · 4052 days ago · 5 km deep · 22 km away · felt by 1
  11. 2.315 km SE of Challis, Idaho · 4051 days ago · 7 km deep · 26 km away
  12. 2.712 km SE of Challis, Idaho · 4051 days ago · 6 km deep · 24 km away
  13. 2.615 km SE of Challis, Idaho · 4051 days ago · 5 km deep · 27 km away
  14. 1.913 km SE of Challis, Idaho · 4051 days ago · 9 km deep · 24 km away
  15. 1.636 km SSW of Salmon, Idaho · 4051 days ago · 10 km deep · 38 km away
  16. 1.515 km SE of Challis, Idaho · 4051 days ago · 7 km deep · 26 km away
  17. 2.138 km NE of Yellow Pine, Idaho · 4049 days ago · 5 km deep · 90 km away
  18. 2.236 km NE of Yellow Pine, Idaho · 4048 days ago · 11 km deep · 96 km away
  19. 1.912 km ESE of Challis, Idaho · 4046 days ago · 4 km deep · 23 km away
  20. 2.411 km SE of Challis, Idaho · 4045 days ago · 11 km deep · 22 km away
  21. 2.524 km SE of Challis, Idaho · 4044 days ago · 10 km deep · 35 km away
  22. 2.524 km NW of Clayton, Idaho · 4042 days ago · 8 km deep · 35 km away
  23. 1.913 km SE of Challis, Idaho · 4039 days ago · 13 km deep · 25 km away
  24. 2.030 km E of Clayton, Idaho · 4036 days ago · 5 km deep · 47 km away
  25. 3.310 km SE of Challis, Idaho · 4035 days ago · 10 km deep · 21 km away · felt by 4
  26. 2.013 km W of Clayton, Idaho · 4034 days ago · 9 km deep · 43 km away
  27. 1.513 km W of Clayton, Idaho · 4033 days ago · 10 km deep · 43 km away
  28. 1.914 km W of Clayton, Idaho · 4032 days ago · 6 km deep · 42 km away
  29. 2.826 km W of Challis, Idaho · 4032 days ago · 5 km deep · 20 km away
  30. 1.8southern Idaho · 4031 days ago · 10 km deep · 6 km away
  31. 1.64 km NNW of Challis, Idaho · 4031 days ago · 8 km deep · 6 km away

Before

  1. 2.311 km NW of Challis, Idaho · 4087 days ago · 11 km deep · 1 km away
  2. 2.238 km NNE of Challis, Idaho · 4090 days ago · 14 km deep · 35 km away
  3. 2.113 km SE of Challis, Idaho · 4090 days ago · 14 km deep · 24 km away
  4. 1.914 km SE of Challis, Idaho · 4090 days ago · 13 km deep · 25 km away
  5. 2.311 km SE of Challis, Idaho · 4091 days ago · 10 km deep · 22 km away
  6. 2.613 km NW of Challis, Idaho · 4092 days ago · 9 km deep · 2 km away
  7. 2.43 km ENE of Challis, Idaho · 4100 days ago · 11 km deep · 13 km away
  8. 2.38 km NW of Challis, Idaho · 4107 days ago · 5 km deep · 3 km away
  9. 1.810 km SE of Challis, Idaho · 4110 days ago · 8 km deep · 21 km away
  10. 2.011 km SSE of Challis, Idaho · 4110 days ago · 13 km deep · 22 km away
  11. 2.38 km ESE of Challis, Idaho · 4110 days ago · 10 km deep · 19 km away
  12. 2.413 km NW of Challis, Idaho · 4116 days ago · 5 km deep · 3 km away
  13. 2.413 km NW of Challis, Idaho · 4117 days ago · 5 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15753997. Read Mon, Oct 5, 2026, 2:45 AM UTC.