Idaho earthquakes

M2.0 earthquake 11 km SE of Challis, Idaho

A magnitude 2.0 earthquake struck 11 km SE of Challis, Idaho on Sun, Oct 4, 2015, 9:42 AM MDT (15:42 UTC), 6 km (4 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, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2015-10-04 15:42:12 UTC
Depth
5.9 km (3.7 mi), shallow
Epicenter
44.449° N, 114.116° 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 1.8 km horizontally, 2.6 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
100°
Stations used
11

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 30 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 2.122 km WNW of Clayton, Idaho · 4013 days ago · 7 km deep · 43 km away
  2. 1.522 km WNW of Clayton, Idaho · 4013 days ago · 4 km deep · 44 km away
  3. 1.94 km NNW of Challis, Idaho · 4013 days ago · -1 km deep · 15 km away
  4. 2.014 km SE of Challis, Idaho · 4011 days ago · 10 km deep · 4 km away · felt by 1
  5. 1.929 km N of Sun Valley, Idaho · 4010 days ago · 10 km deep · 59 km away
  6. 1.814 km SE of Challis, Idaho · 4009 days ago · 11 km deep · 4 km away
  7. 1.632 km ESE of Clayton, Idaho · 4008 days ago · 4 km deep · 30 km away
  8. 2.113 km SE of Challis, Idaho · 4002 days ago · 10 km deep · 2 km away
  9. 1.722 km ESE of Challis, Idaho · 4001 days ago · 9 km deep · 11 km away
  10. 2.5southern Idaho · 4001 days ago · 4 km deep · 5 km away
  11. 2.07 km ESE of Challis, Idaho · 4000 days ago · 9 km deep · 4 km away
  12. 2.510 km ESE of Challis, Idaho · 3999 days ago · 11 km deep · 2 km away
  13. 3.08 km ESE of Challis, Idaho · 3998 days ago · 7 km deep · 3 km away · felt by 1
  14. 2.711 km NNW of Challis, Idaho · 3995 days ago · 4 km deep · 21 km away · felt by 1
  15. 2.110 km NNE of Stanley, Idaho · 3995 days ago · -1 km deep · 63 km away
  16. 2.411 km NNE of Stanley, Idaho · 3992 days ago · 8 km deep · 62 km away
  17. 1.615 km SE of Challis, Idaho · 3990 days ago · 6 km deep · 4 km away
  18. 1.914 km SE of Challis, Idaho · 3990 days ago · 9 km deep · 3 km away
  19. 1.832 km N of Mackay, Idaho · 3988 days ago · 10 km deep · 45 km away
  20. 1.65 km NNW of Challis, Idaho · 3988 days ago · -3 km deep · 16 km away
  21. 1.810 km NNE of Stanley, Idaho · 3982 days ago · -1 km deep · 63 km away
  22. 1.626 km SSW of Clayton, Idaho · 3980 days ago · 14 km deep · 55 km away
  23. 1.823 km NNW of Challis, Idaho · 3980 days ago · -3 km deep · 33 km away
  24. 2.021 km NNW of Challis, Idaho · 3976 days ago · 4 km deep · 31 km away
  25. 2.413 km ESE of Challis, Idaho · 3973 days ago · 11 km deep · 2 km away
  26. 2.013 km SE of Challis, Idaho · 3968 days ago · 7 km deep · 2 km away
  27. 1.611 km SE of Challis, Idaho · 3968 days ago · 4 km deep · 1 km away
  28. 1.911 km ESE of Challis, Idaho · 3962 days ago · 7 km deep · 1 km away
  29. 1.69 km NNW of Challis, Idaho · 3959 days ago · 5 km deep · 20 km away
  30. 1.919 km NW of Stanley, Idaho · 3957 days ago · 20 km deep · 80 km away

Before

  1. 1.629 km N of Sun Valley, Idaho · 4019 days ago · 7 km deep · 58 km away
  2. 1.64 km NNW of Challis, Idaho · 4029 days ago · 8 km deep · 16 km away
  3. 1.8southern Idaho · 4029 days ago · 10 km deep · 16 km away
  4. 2.826 km W of Challis, Idaho · 4030 days ago · 5 km deep · 37 km away
  5. 1.914 km W of Clayton, Idaho · 4030 days ago · 6 km deep · 42 km away
  6. 1.513 km W of Clayton, Idaho · 4031 days ago · 10 km deep · 43 km away
  7. 2.013 km W of Clayton, Idaho · 4032 days ago · 9 km deep · 42 km away
  8. 3.310 km SE of Challis, Idaho · 4033 days ago · 10 km deep · 1 km away · felt by 4
  9. 2.030 km E of Clayton, Idaho · 4034 days ago · 5 km deep · 26 km away
  10. 1.913 km SE of Challis, Idaho · 4037 days ago · 13 km deep · 3 km away
  11. 2.524 km NW of Clayton, Idaho · 4040 days ago · 8 km deep · 44 km away
  12. 2.524 km SE of Challis, Idaho · 4042 days ago · 10 km deep · 14 km away
  13. 2.411 km SE of Challis, Idaho · 4043 days ago · 11 km deep · 0 km away
  14. 1.912 km ESE of Challis, Idaho · 4044 days ago · 4 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80100319. Read Sat, Oct 3, 2026, 5:42 AM UTC.