Montana earthquakes

M1.5 earthquake 40 km ESE of Salmon, Idaho

A magnitude 1.5 earthquake struck 40 km ESE of Salmon, Idaho on Mon, Jun 1, 2015, 9:58 AM MDT (15:58 UTC), 10 km (6 mi) below the surface.

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

A larger quake followed: M2.3 37 km NW of Challis, Idaho. This one was a foreshock.

Salmon forecastMore in Montana

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.5 (mc), micro
Local time
UTC
2015-06-01 15:58:55 UTC
Depth
9.8 km (6.1 mi), shallow
Epicenter
45.095° N, 113.394° 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, 2.0 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
115°
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: 22 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.337 km NW of Challis, Idaho · 4127 days ago · 11 km deep · 100 km away
  2. 2.09 km NW of Challis, Idaho · 4126 days ago · 7 km deep · 92 km away
  3. 3.214 km SE of Challis, Idaho · 4125 days ago · 5 km deep · 92 km away
  4. 1.635 km SSE of Salmon, Idaho · 4124 days ago · 10 km deep · 38 km away
  5. 1.79 km WNW of Dillon, Montana · 4120 days ago · 10 km deep · 54 km away
  6. 1.528 km ENE of Leadore, Idaho · 4112 days ago · 13 km deep · 48 km away
  7. 2.413 km NW of Challis, Idaho · 4104 days ago · 5 km deep · 94 km away
  8. 2.413 km NW of Challis, Idaho · 4104 days ago · 5 km deep · 94 km away
  9. 2.38 km ESE of Challis, Idaho · 4098 days ago · 10 km deep · 91 km away
  10. 2.011 km SSE of Challis, Idaho · 4098 days ago · 13 km deep · 96 km away
  11. 1.810 km SE of Challis, Idaho · 4098 days ago · 8 km deep · 94 km away
  12. 2.38 km NW of Challis, Idaho · 4094 days ago · 5 km deep · 92 km away
  13. 1.919 km NW of Lima, Montana · 4091 days ago · 1 km deep · 62 km away
  14. 2.43 km ENE of Challis, Idaho · 4087 days ago · 11 km deep · 91 km away
  15. 1.924 km ENE of Leadore, Idaho · 4086 days ago · 7 km deep · 47 km away
  16. 2.613 km NW of Challis, Idaho · 4080 days ago · 9 km deep · 92 km away
  17. 2.311 km SE of Challis, Idaho · 4078 days ago · 10 km deep · 92 km away
  18. 1.914 km SE of Challis, Idaho · 4078 days ago · 13 km deep · 93 km away
  19. 2.113 km SE of Challis, Idaho · 4078 days ago · 14 km deep · 92 km away
  20. 2.238 km NNE of Challis, Idaho · 4077 days ago · 14 km deep · 57 km away
  21. 2.311 km NW of Challis, Idaho · 4075 days ago · 11 km deep · 92 km away
  22. 2.010 km NW of Challis, Idaho · 4075 days ago · 9 km deep · 92 km away

Before

  1. 2.311 km ESE of Challis, Idaho · 4136 days ago · 12 km deep · 91 km away
  2. 1.98 km NW of Challis, Idaho · 4138 days ago · 8 km deep · 92 km away
  3. 2.012 km SE of Challis, Idaho · 4139 days ago · 10 km deep · 93 km away
  4. 1.828 km SW of Lima, Montana · 4142 days ago · 12 km deep · 84 km away
  5. 1.926 km SW of Lima, Montana · 4142 days ago · 11 km deep · 87 km away
  6. 3.312 km SE of Challis, Idaho · 4145 days ago · 6 km deep · 93 km away · felt by 2
  7. 2.99 km NW of Challis, Idaho · 4158 days ago · 7 km deep · 92 km away
  8. 2.519 km ENE of Lima, Montana · 4159 days ago · 6 km deep · 94 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15987182. Read Tue, Sep 22, 2026, 8:52 PM UTC.