Montana earthquakes

M1.9 earthquake 24 km ENE of Leadore, Idaho

A magnitude 1.9 earthquake struck 24 km ENE of Leadore, Idaho on Thu, Jul 16, 2015, 6:22 AM MDT (12:22 UTC), 7 km (5 mi) below the surface.

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

A larger quake followed: M2.3 11 km SE of Challis, Idaho. This one was a foreshock.

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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
2015-07-16 12:22:16 UTC
Depth
7.4 km (4.6 mi), shallow
Epicenter
44.747° N, 113.063° W
Region
Montana
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 0.7 km horizontally, 1.5 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
137°
Stations used
26

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 12 in the 30 days before it.

After

  1. 2.311 km SE of Challis, Idaho · 4079 days ago · 10 km deep · 90 km away
  2. 1.914 km SE of Challis, Idaho · 4079 days ago · 13 km deep · 90 km away
  3. 2.113 km SE of Challis, Idaho · 4079 days ago · 14 km deep · 89 km away
  4. 2.238 km NNE of Challis, Idaho · 4078 days ago · 14 km deep · 74 km away
  5. 1.913 km N of Dillon, Montana · 4066 days ago · 10 km deep · 74 km away
  6. 1.539 km NNE of Spencer, Idaho · 4066 days ago · 8 km deep · 91 km away
  7. 1.521 km NNW of Dillon, Montana · 4065 days ago · 11 km deep · 75 km away
  8. 1.816 km NNE of Dillon, Montana · 4064 days ago · 10 km deep · 78 km away
  9. 1.96 km NW of Challis, Idaho · 4056 days ago · 4 km deep · 100 km away
  10. 2.121 km E of Challis, Idaho · 4052 days ago · 13 km deep · 77 km away
  11. 2.15 km NNW of Challis, Idaho · 4051 days ago · 11 km deep · 97 km away
  12. 1.910 km SE of Challis, Idaho · 4050 days ago · 11 km deep · 91 km away
  13. 1.511 km NNE of Dillon, Montana · 4048 days ago · 10 km deep · 73 km away
  14. 1.520 km E of Lima, Montana · 4040 days ago · 0 km deep · 58 km away
  15. 2.711 km SE of Challis, Idaho · 4040 days ago · 5 km deep · 91 km away · felt by 1
  16. 2.315 km SE of Challis, Idaho · 4040 days ago · 7 km deep · 89 km away
  17. 2.712 km SE of Challis, Idaho · 4040 days ago · 6 km deep · 89 km away
  18. 2.615 km SE of Challis, Idaho · 4040 days ago · 5 km deep · 90 km away
  19. 1.913 km SE of Challis, Idaho · 4040 days ago · 9 km deep · 91 km away
  20. 1.636 km SSW of Salmon, Idaho · 4040 days ago · 10 km deep · 87 km away
  21. 1.515 km SE of Challis, Idaho · 4040 days ago · 7 km deep · 89 km away
  22. 1.912 km ESE of Challis, Idaho · 4035 days ago · 4 km deep · 88 km away
  23. 2.411 km SE of Challis, Idaho · 4034 days ago · 11 km deep · 90 km away
  24. 2.524 km SE of Challis, Idaho · 4033 days ago · 10 km deep · 91 km away
  25. 2.97 km E of Lima, Montana · 4032 days ago · 6 km deep · 46 km away
  26. 2.37 km E of Lima, Montana · 4032 days ago · 7 km deep · 46 km away
  27. 1.78 km E of Lima, Montana · 4031 days ago · 8 km deep · 47 km away
  28. 2.119 km E of Lima, Montana · 4029 days ago · 5 km deep · 58 km away
  29. 1.540 km NNE of Spencer, Idaho · 4028 days ago · 12 km deep · 91 km away
  30. 1.913 km SE of Challis, Idaho · 4027 days ago · 13 km deep · 89 km away

Before

  1. 2.43 km ENE of Challis, Idaho · 4088 days ago · 11 km deep · 93 km away
  2. 1.919 km NW of Lima, Montana · 4092 days ago · 1 km deep · 24 km away
  3. 1.541 km S of Virginia City, Montana · 4095 days ago · 10 km deep · 83 km away
  4. 2.38 km NW of Challis, Idaho · 4095 days ago · 5 km deep · 99 km away
  5. 1.810 km SE of Challis, Idaho · 4099 days ago · 8 km deep · 93 km away
  6. 2.011 km SSE of Challis, Idaho · 4099 days ago · 13 km deep · 94 km away
  7. 2.38 km ESE of Challis, Idaho · 4099 days ago · 10 km deep · 91 km away
  8. 1.624 km NNE of Spencer, Idaho · 4099 days ago · 9 km deep · 78 km away
  9. 1.750 km W of Hebgen Lake Estates, Montana · 4100 days ago · 0 km deep · 98 km away
  10. 2.148 km W of Hebgen Lake Estates, Montana · 4100 days ago · 7 km deep · 100 km away
  11. 2.029 km N of Spencer, Idaho · 4105 days ago · 11 km deep · 76 km away
  12. 1.528 km ENE of Leadore, Idaho · 4113 days ago · 13 km deep · 4 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15672178. Read Wed, Sep 23, 2026, 9:08 PM UTC.