Idaho earthquakes

M1.9 earthquake 10 km SE of Challis, Idaho

A magnitude 1.9 earthquake struck 10 km SE of Challis, Idaho on Thu, Mar 12, 2015, 1:31 AM MDT (07:31 UTC), 13 km (8 mi) below the surface.

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

A larger quake followed: M2.5 11 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
Local time
UTC
2015-03-12 07:31:30 UTC
Depth
12.7 km (7.9 mi), shallow
Epicenter
44.446° N, 114.131° 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, 0.8 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
90°
Stations used
15

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 8 in the 30 days before it.

After

  1. 2.511 km SE of Challis, Idaho · 4212 days ago · 11 km deep · 1 km away
  2. 2.314 km NW of Challis, Idaho · 4205 days ago · 5 km deep · 24 km away
  3. 2.09 km SE of Challis, Idaho · 4203 days ago · 12 km deep · 1 km away
  4. 2.012 km N of Challis, Idaho · 4195 days ago · 11 km deep · 21 km away
  5. 2.115 km NNW of Challis, Idaho · 4195 days ago · 4 km deep · 26 km away
  6. 2.08 km SE of Challis, Idaho · 4191 days ago · 12 km deep · 3 km away
  7. 2.518 km NE of Leadore, Idaho · 4190 days ago · 12 km deep · 85 km away
  8. 2.110 km SE of Challis, Idaho · 4189 days ago · 12 km deep · 2 km away
  9. 1.623 km SW of Leadore, Idaho · 4182 days ago · 13 km deep · 46 km away
  10. 2.67 km SE of Challis, Idaho · 4172 days ago · 12 km deep · 3 km away
  11. 2.337 km NW of Challis, Idaho · 4172 days ago · 11 km deep · 47 km away
  12. 1.923 km SW of Leadore, Idaho · 4166 days ago · 11 km deep · 46 km away
  13. 2.116 km W of Clayton, Idaho · 4166 days ago · 11 km deep · 43 km away
  14. 2.89 km NW of Challis, Idaho · 4166 days ago · 8 km deep · 20 km away · felt by 2
  15. 2.312 km NW of Challis, Idaho · 4166 days ago · 5 km deep · 22 km away
  16. 2.69 km NW of Challis, Idaho · 4165 days ago · 7 km deep · 19 km away · felt by 3
  17. 2.69 km NW of Challis, Idaho · 4165 days ago · 6 km deep · 19 km away
  18. 2.011 km SE of Challis, Idaho · 4164 days ago · 9 km deep · 2 km away
  19. 2.311 km NNE of Stanley, Idaho · 4163 days ago · 13 km deep · 60 km away
  20. 1.910 km NNE of Stanley, Idaho · 4162 days ago · 11 km deep · 61 km away
  21. 2.010 km NE of Stanley, Idaho · 4160 days ago · 8 km deep · 61 km away
  22. 2.99 km NW of Challis, Idaho · 4158 days ago · 7 km deep · 20 km away
  23. 1.811 km NNE of Stanley, Idaho · 4156 days ago · 11 km deep · 60 km away
  24. 2.410 km NNE of Stanley, Idaho · 4156 days ago · 11 km deep · 62 km away
  25. 1.911 km NNE of Stanley, Idaho · 4156 days ago · 9 km deep · 62 km away
  26. 2.710 km NNE of Stanley, Idaho · 4156 days ago · 13 km deep · 62 km away
  27. 2.08 km NNE of Stanley, Idaho · 4155 days ago · 10 km deep · 62 km away
  28. 2.010 km NE of Stanley, Idaho · 4155 days ago · 12 km deep · 61 km away
  29. 1.811 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 62 km away
  30. 2.011 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 61 km away
  31. 2.112 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 61 km away
  32. 2.011 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 61 km away
  33. 3.012 km NNE of Stanley, Idaho · 4155 days ago · 12 km deep · 62 km away · felt by 2
  34. 1.810 km NE of Stanley, Idaho · 4154 days ago · 13 km deep · 60 km away
  35. 1.911 km NNE of Stanley, Idaho · 4154 days ago · 12 km deep · 61 km away
  36. 2.111 km NNE of Stanley, Idaho · 4154 days ago · 14 km deep · 60 km away

Before

  1. 3.111 km SE of Challis, Idaho · 4218 days ago · 11 km deep · 2 km away
  2. 2.810 km SE of Challis, Idaho · 4220 days ago · 12 km deep · 1 km away
  3. 3.09 km SE of Challis, Idaho · 4220 days ago · 14 km deep · 1 km away · felt by 2
  4. 2.0southern Idaho · 4225 days ago · 11 km deep · 1 km away
  5. 2.4southern Idaho · 4237 days ago · 13 km deep · 3 km away
  6. 3.022 km SE of Challis, Idaho · 4239 days ago · 13 km deep · 12 km away
  7. 1.925 km W of Lima, Montana · 4240 days ago · 2 km deep · 99 km away
  8. 2.012 km SE of Challis, Idaho · 4242 days ago · 8 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15442547. Read Tue, Sep 22, 2026, 8:42 PM UTC.