Idaho earthquakes

M2.3 earthquake 11 km ESE of Challis, Idaho

A magnitude 2.3 earthquake struck 11 km ESE of Challis, Idaho on Wed, May 27, 2015, 10:03 AM MDT (16:03 UTC), 12 km (7 mi) below the surface.

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

A larger quake followed: M3.2 14 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
2.3 (mc), micro
Local time
UTC
2015-05-27 16:03:45 UTC
Depth
11.8 km (7.3 mi), shallow
Epicenter
44.449° N, 114.110° 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 0.6 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
54°
Stations used
27

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 30 in the 30 days before it.

After

  1. 1.617 km S of Clayton, Idaho · 4132 days ago · 7 km deep · 47 km away
  2. 1.540 km ESE of Salmon, Idaho · 4131 days ago · 10 km deep · 91 km away
  3. 2.337 km NW of Challis, Idaho · 4127 days ago · 11 km deep · 49 km away
  4. 2.09 km NW of Challis, Idaho · 4126 days ago · 7 km deep · 21 km away
  5. 3.214 km SE of Challis, Idaho · 4125 days ago · 5 km deep · 3 km away
  6. 1.635 km SSE of Salmon, Idaho · 4124 days ago · 10 km deep · 54 km away
  7. 2.322 km NNE of Sun Valley, Idaho · 4123 days ago · 13 km deep · 63 km away
  8. 2.313 km WNW of Clayton, Idaho · 4122 days ago · 12 km deep · 41 km away
  9. 1.528 km ENE of Leadore, Idaho · 4112 days ago · 13 km deep · 94 km away
  10. 2.413 km NW of Challis, Idaho · 4104 days ago · 5 km deep · 25 km away
  11. 2.413 km NW of Challis, Idaho · 4104 days ago · 5 km deep · 25 km away
  12. 2.38 km ESE of Challis, Idaho · 4098 days ago · 10 km deep · 3 km away
  13. 2.011 km SSE of Challis, Idaho · 4098 days ago · 13 km deep · 5 km away
  14. 1.810 km SE of Challis, Idaho · 4098 days ago · 8 km deep · 3 km away
  15. 2.38 km NW of Challis, Idaho · 4095 days ago · 5 km deep · 19 km away
  16. 2.43 km ENE of Challis, Idaho · 4087 days ago · 11 km deep · 10 km away
  17. 1.924 km ENE of Leadore, Idaho · 4086 days ago · 7 km deep · 89 km away
  18. 2.613 km NW of Challis, Idaho · 4080 days ago · 9 km deep · 24 km away
  19. 2.311 km SE of Challis, Idaho · 4078 days ago · 10 km deep · 1 km away
  20. 1.914 km SE of Challis, Idaho · 4078 days ago · 13 km deep · 3 km away
  21. 2.113 km SE of Challis, Idaho · 4078 days ago · 14 km deep · 2 km away
  22. 2.238 km NNE of Challis, Idaho · 4077 days ago · 14 km deep · 40 km away

Before

  1. 1.98 km NW of Challis, Idaho · 4138 days ago · 8 km deep · 20 km away
  2. 2.012 km SE of Challis, Idaho · 4139 days ago · 10 km deep · 2 km away
  3. 3.011 km NNE of Stanley, Idaho · 4144 days ago · 13 km deep · 64 km away
  4. 3.312 km SE of Challis, Idaho · 4145 days ago · 6 km deep · 2 km away · felt by 2
  5. 2.612 km NNE of Stanley, Idaho · 4148 days ago · 18 km deep · 61 km away
  6. 2.111 km NNE of Stanley, Idaho · 4154 days ago · 14 km deep · 62 km away
  7. 1.911 km NNE of Stanley, Idaho · 4154 days ago · 12 km deep · 62 km away
  8. 1.810 km NE of Stanley, Idaho · 4154 days ago · 13 km deep · 62 km away
  9. 3.012 km NNE of Stanley, Idaho · 4155 days ago · 12 km deep · 63 km away · felt by 2
  10. 2.011 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 63 km away
  11. 2.112 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 63 km away
  12. 2.011 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 63 km away
  13. 1.811 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 64 km away
  14. 2.010 km NE of Stanley, Idaho · 4155 days ago · 12 km deep · 63 km away
  15. 2.08 km NNE of Stanley, Idaho · 4155 days ago · 10 km deep · 64 km away
  16. 2.710 km NNE of Stanley, Idaho · 4156 days ago · 13 km deep · 63 km away
  17. 1.911 km NNE of Stanley, Idaho · 4156 days ago · 9 km deep · 63 km away
  18. 2.410 km NNE of Stanley, Idaho · 4156 days ago · 11 km deep · 64 km away
  19. 1.811 km NNE of Stanley, Idaho · 4156 days ago · 11 km deep · 62 km away
  20. 2.99 km NW of Challis, Idaho · 4158 days ago · 7 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15942483. Read Tue, Sep 22, 2026, 9:40 PM UTC.