Idaho earthquakes

M2.0 earthquake 9 km SE of Challis, Idaho

A magnitude 2.0 earthquake struck 9 km SE of Challis, Idaho on Sat, Mar 21, 2015, 5:41 PM MDT (23:41 UTC), 12 km (8 mi) below the surface.

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

A larger quake followed: M3.3 12 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
2015-03-21 23:41:29 UTC
Depth
12.1 km (7.5 mi), shallow
Epicenter
44.446° N, 114.145° 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, 0.8 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
97°
Stations used
16

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 7 in the 30 days before it.

After

  1. 2.012 km N of Challis, Idaho · 4208 days ago · 11 km deep · 20 km away
  2. 2.115 km NNW of Challis, Idaho · 4208 days ago · 4 km deep · 25 km away
  3. 2.08 km SE of Challis, Idaho · 4204 days ago · 12 km deep · 2 km away
  4. 2.518 km NE of Leadore, Idaho · 4203 days ago · 12 km deep · 86 km away
  5. 2.110 km SE of Challis, Idaho · 4201 days ago · 12 km deep · 2 km away
  6. 1.623 km SW of Leadore, Idaho · 4195 days ago · 13 km deep · 47 km away
  7. 2.67 km SE of Challis, Idaho · 4185 days ago · 12 km deep · 2 km away
  8. 2.337 km NW of Challis, Idaho · 4184 days ago · 11 km deep · 47 km away
  9. 1.923 km SW of Leadore, Idaho · 4179 days ago · 11 km deep · 47 km away
  10. 2.116 km W of Clayton, Idaho · 4178 days ago · 11 km deep · 42 km away
  11. 2.89 km NW of Challis, Idaho · 4178 days ago · 8 km deep · 19 km away · felt by 2
  12. 2.312 km NW of Challis, Idaho · 4178 days ago · 5 km deep · 22 km away
  13. 2.69 km NW of Challis, Idaho · 4178 days ago · 7 km deep · 19 km away · felt by 3
  14. 2.69 km NW of Challis, Idaho · 4178 days ago · 6 km deep · 19 km away
  15. 2.011 km SE of Challis, Idaho · 4176 days ago · 9 km deep · 2 km away
  16. 2.311 km NNE of Stanley, Idaho · 4176 days ago · 13 km deep · 59 km away
  17. 1.910 km NNE of Stanley, Idaho · 4174 days ago · 11 km deep · 60 km away
  18. 2.010 km NE of Stanley, Idaho · 4173 days ago · 8 km deep · 59 km away
  19. 2.99 km NW of Challis, Idaho · 4170 days ago · 7 km deep · 19 km away
  20. 1.811 km NNE of Stanley, Idaho · 4169 days ago · 11 km deep · 59 km away
  21. 2.410 km NNE of Stanley, Idaho · 4168 days ago · 11 km deep · 61 km away
  22. 1.911 km NNE of Stanley, Idaho · 4168 days ago · 9 km deep · 60 km away
  23. 2.710 km NNE of Stanley, Idaho · 4168 days ago · 13 km deep · 60 km away
  24. 2.08 km NNE of Stanley, Idaho · 4168 days ago · 10 km deep · 61 km away
  25. 2.010 km NE of Stanley, Idaho · 4168 days ago · 12 km deep · 60 km away
  26. 1.811 km NNE of Stanley, Idaho · 4168 days ago · 11 km deep · 61 km away
  27. 2.011 km NNE of Stanley, Idaho · 4167 days ago · 13 km deep · 60 km away
  28. 2.112 km NNE of Stanley, Idaho · 4167 days ago · 13 km deep · 60 km away
  29. 2.011 km NNE of Stanley, Idaho · 4167 days ago · 11 km deep · 60 km away
  30. 3.012 km NNE of Stanley, Idaho · 4167 days ago · 12 km deep · 61 km away · felt by 2
  31. 1.810 km NE of Stanley, Idaho · 4167 days ago · 13 km deep · 59 km away
  32. 1.911 km NNE of Stanley, Idaho · 4167 days ago · 12 km deep · 60 km away
  33. 2.111 km NNE of Stanley, Idaho · 4167 days ago · 14 km deep · 59 km away
  34. 2.612 km NNE of Stanley, Idaho · 4161 days ago · 18 km deep · 59 km away
  35. 3.312 km SE of Challis, Idaho · 4158 days ago · 6 km deep · 3 km away · felt by 2
  36. 3.011 km NNE of Stanley, Idaho · 4156 days ago · 13 km deep · 61 km away

Before

  1. 2.314 km NW of Challis, Idaho · 4217 days ago · 5 km deep · 24 km away
  2. 2.511 km SE of Challis, Idaho · 4225 days ago · 11 km deep · 2 km away
  3. 1.910 km SE of Challis, Idaho · 4225 days ago · 13 km deep · 1 km away
  4. 3.111 km SE of Challis, Idaho · 4230 days ago · 11 km deep · 2 km away
  5. 2.810 km SE of Challis, Idaho · 4232 days ago · 12 km deep · 1 km away
  6. 3.09 km SE of Challis, Idaho · 4233 days ago · 14 km deep · 1 km away · felt by 2
  7. 2.0southern Idaho · 4237 days ago · 11 km deep · 1 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15679404. Read Mon, Oct 5, 2026, 7:58 AM UTC.