Idaho earthquakes

M1.9 earthquake 23 km SW of Leadore, Idaho

A magnitude 1.9 earthquake struck 23 km SW of Leadore, Idaho on Mon, Apr 27, 2015, 1:26 PM MDT (19:26 UTC), 11 km (7 mi) below the surface.

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

A larger quake followed: M2.1 16 km W of Clayton, 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
2015-04-27 19:26:39 UTC
Depth
10.5 km (6.5 mi), shallow
Epicenter
44.532° N, 113.569° 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 0.7 km horizontally, 1.6 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
101°
Stations used
21

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.116 km W of Clayton, Idaho · 4166 days ago · 11 km deep · 88 km away
  2. 2.89 km NW of Challis, Idaho · 4166 days ago · 8 km deep · 58 km away · felt by 2
  3. 2.312 km NW of Challis, Idaho · 4166 days ago · 5 km deep · 61 km away
  4. 2.69 km NW of Challis, Idaho · 4165 days ago · 7 km deep · 58 km away · felt by 3
  5. 2.69 km NW of Challis, Idaho · 4165 days ago · 6 km deep · 59 km away
  6. 2.011 km SE of Challis, Idaho · 4164 days ago · 9 km deep · 47 km away
  7. 2.519 km ENE of Lima, Montana · 4159 days ago · 6 km deep · 98 km away
  8. 2.99 km NW of Challis, Idaho · 4158 days ago · 7 km deep · 58 km away
  9. 3.312 km SE of Challis, Idaho · 4145 days ago · 6 km deep · 44 km away · felt by 2
  10. 1.926 km SW of Lima, Montana · 4142 days ago · 11 km deep · 63 km away
  11. 1.828 km SW of Lima, Montana · 4142 days ago · 12 km deep · 58 km away
  12. 2.012 km SE of Challis, Idaho · 4139 days ago · 10 km deep · 44 km away
  13. 1.98 km NW of Challis, Idaho · 4138 days ago · 8 km deep · 58 km away
  14. 2.311 km ESE of Challis, Idaho · 4136 days ago · 12 km deep · 44 km away
  15. 1.617 km S of Clayton, Idaho · 4132 days ago · 7 km deep · 84 km away
  16. 1.540 km ESE of Salmon, Idaho · 4131 days ago · 10 km deep · 64 km away
  17. 2.337 km NW of Challis, Idaho · 4127 days ago · 11 km deep · 82 km away
  18. 2.09 km NW of Challis, Idaho · 4126 days ago · 7 km deep · 59 km away
  19. 3.214 km SE of Challis, Idaho · 4125 days ago · 5 km deep · 42 km away
  20. 1.635 km SSE of Salmon, Idaho · 4125 days ago · 10 km deep · 40 km away
  21. 2.322 km NNE of Sun Valley, Idaho · 4123 days ago · 13 km deep · 91 km away
  22. 2.313 km WNW of Clayton, Idaho · 4122 days ago · 12 km deep · 84 km away
  23. 1.528 km ENE of Leadore, Idaho · 4112 days ago · 13 km deep · 51 km away

Before

  1. 2.337 km NW of Challis, Idaho · 4172 days ago · 11 km deep · 81 km away
  2. 2.67 km SE of Challis, Idaho · 4173 days ago · 12 km deep · 48 km away
  3. 1.623 km SW of Leadore, Idaho · 4182 days ago · 13 km deep · 1 km away
  4. 2.110 km SE of Challis, Idaho · 4189 days ago · 12 km deep · 47 km away
  5. 2.518 km NE of Leadore, Idaho · 4190 days ago · 12 km deep · 42 km away
  6. 2.08 km SE of Challis, Idaho · 4191 days ago · 12 km deep · 48 km away
  7. 2.115 km NNW of Challis, Idaho · 4195 days ago · 4 km deep · 61 km away
  8. 2.012 km N of Challis, Idaho · 4195 days ago · 11 km deep · 54 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15438114. Read Tue, Sep 22, 2026, 11:27 PM UTC.