Idaho earthquakes

M2.1 earthquake 10 km SE of Challis, Idaho

A magnitude 2.1 earthquake struck 10 km SE of Challis, Idaho on Sat, Apr 4, 2015, 5:33 PM MDT (23:33 UTC), 12 km (7 mi) below the surface.

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

A larger quake followed: M2.6 7 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
2.1 (mc), micro
Local time
UTC
2015-04-04 23:33:14 UTC
Depth
11.5 km (7.1 mi), shallow
Epicenter
44.430° N, 114.147° 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 0.9 km horizontally, 1.0 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
54°
Stations used
19

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 36 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 1.623 km SW of Leadore, Idaho · 4182 days ago · 13 km deep · 48 km away
  2. 2.67 km SE of Challis, Idaho · 4172 days ago · 12 km deep · 4 km away
  3. 2.337 km NW of Challis, Idaho · 4171 days ago · 11 km deep · 48 km away
  4. 1.923 km SW of Leadore, Idaho · 4166 days ago · 11 km deep · 47 km away
  5. 2.116 km W of Clayton, Idaho · 4166 days ago · 11 km deep · 41 km away
  6. 2.89 km NW of Challis, Idaho · 4166 days ago · 8 km deep · 20 km away · felt by 2
  7. 2.312 km NW of Challis, Idaho · 4165 days ago · 5 km deep · 23 km away
  8. 2.69 km NW of Challis, Idaho · 4165 days ago · 7 km deep · 20 km away · felt by 3
  9. 2.69 km NW of Challis, Idaho · 4165 days ago · 6 km deep · 20 km away
  10. 2.011 km SE of Challis, Idaho · 4163 days ago · 9 km deep · 1 km away
  11. 2.311 km NNE of Stanley, Idaho · 4163 days ago · 13 km deep · 58 km away
  12. 1.910 km NNE of Stanley, Idaho · 4161 days ago · 11 km deep · 59 km away
  13. 2.010 km NE of Stanley, Idaho · 4160 days ago · 8 km deep · 59 km away
  14. 2.99 km NW of Challis, Idaho · 4158 days ago · 7 km deep · 20 km away
  15. 1.811 km NNE of Stanley, Idaho · 4156 days ago · 11 km deep · 59 km away
  16. 2.410 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 60 km away
  17. 1.911 km NNE of Stanley, Idaho · 4155 days ago · 9 km deep · 60 km away
  18. 2.710 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 60 km away
  19. 2.08 km NNE of Stanley, Idaho · 4155 days ago · 10 km deep · 61 km away
  20. 2.010 km NE of Stanley, Idaho · 4155 days ago · 12 km deep · 59 km away
  21. 1.811 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 60 km away
  22. 2.011 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 60 km away
  23. 2.112 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 59 km away
  24. 2.011 km NNE of Stanley, Idaho · 4154 days ago · 11 km deep · 60 km away
  25. 3.012 km NNE of Stanley, Idaho · 4154 days ago · 12 km deep · 60 km away · felt by 2
  26. 1.810 km NE of Stanley, Idaho · 4154 days ago · 13 km deep · 58 km away
  27. 1.911 km NNE of Stanley, Idaho · 4154 days ago · 12 km deep · 59 km away
  28. 2.111 km NNE of Stanley, Idaho · 4154 days ago · 14 km deep · 59 km away
  29. 2.612 km NNE of Stanley, Idaho · 4148 days ago · 18 km deep · 58 km away
  30. 3.312 km SE of Challis, Idaho · 4145 days ago · 6 km deep · 3 km away · felt by 2
  31. 3.011 km NNE of Stanley, Idaho · 4144 days ago · 13 km deep · 60 km away
  32. 2.012 km SE of Challis, Idaho · 4139 days ago · 10 km deep · 3 km away
  33. 1.98 km NW of Challis, Idaho · 4137 days ago · 8 km deep · 19 km away
  34. 2.311 km ESE of Challis, Idaho · 4136 days ago · 12 km deep · 4 km away
  35. 1.617 km S of Clayton, Idaho · 4132 days ago · 7 km deep · 43 km away
  36. 1.540 km ESE of Salmon, Idaho · 4131 days ago · 10 km deep · 95 km away

Before

  1. 2.518 km NE of Leadore, Idaho · 4190 days ago · 12 km deep · 86 km away
  2. 2.08 km SE of Challis, Idaho · 4191 days ago · 12 km deep · 3 km away
  3. 2.115 km NNW of Challis, Idaho · 4195 days ago · 4 km deep · 26 km away
  4. 2.012 km N of Challis, Idaho · 4195 days ago · 11 km deep · 22 km away
  5. 2.09 km SE of Challis, Idaho · 4203 days ago · 12 km deep · 2 km away
  6. 2.314 km NW of Challis, Idaho · 4204 days ago · 5 km deep · 25 km away
  7. 2.511 km SE of Challis, Idaho · 4212 days ago · 11 km deep · 2 km away
  8. 1.910 km SE of Challis, Idaho · 4212 days ago · 13 km deep · 2 km away
  9. 3.111 km SE of Challis, Idaho · 4218 days ago · 11 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15237402. Read Tue, Sep 22, 2026, 3:59 PM UTC.