Idaho earthquakes

M3.3 earthquake 12 km SE of Challis, Idaho

A magnitude 3.3 earthquake struck 12 km SE of Challis, Idaho on Mon, May 18, 2015, 9:22 AM MDT (15:22 UTC), 6 km (4 mi) below the surface.

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
3.3 (ml), minor
Local time
UTC
2015-05-18 15:22:57 UTC
Depth
5.7 km (3.5 mi), shallow
Epicenter
44.434° N, 114.108° W
Region
Idaho
Felt reports
2
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

2 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 2.8 km horizontally, 6.6 km in depth
Depth from
From location
Station coverage gap
70°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 21 in the 60 days after this one and 28 in the 30 days before it.

After

  1. 3.011 km NNE of Stanley, Idaho · 4144 days ago · 13 km deep · 63 km away
  2. 2.012 km SE of Challis, Idaho · 4139 days ago · 10 km deep · 0 km away
  3. 1.98 km NW of Challis, Idaho · 4137 days ago · 8 km deep · 21 km away
  4. 2.311 km ESE of Challis, Idaho · 4136 days ago · 12 km deep · 2 km away
  5. 1.617 km S of Clayton, Idaho · 4132 days ago · 7 km deep · 46 km away
  6. 1.540 km ESE of Salmon, Idaho · 4131 days ago · 10 km deep · 93 km away
  7. 2.337 km NW of Challis, Idaho · 4126 days ago · 11 km deep · 50 km away
  8. 2.09 km NW of Challis, Idaho · 4126 days ago · 7 km deep · 22 km away
  9. 3.214 km SE of Challis, Idaho · 4125 days ago · 5 km deep · 2 km away
  10. 1.635 km SSE of Salmon, Idaho · 4124 days ago · 10 km deep · 56 km away
  11. 2.322 km NNE of Sun Valley, Idaho · 4123 days ago · 13 km deep · 62 km away
  12. 2.313 km WNW of Clayton, Idaho · 4122 days ago · 12 km deep · 40 km away
  13. 1.528 km ENE of Leadore, Idaho · 4112 days ago · 13 km deep · 94 km away
  14. 2.413 km NW of Challis, Idaho · 4104 days ago · 5 km deep · 26 km away
  15. 2.413 km NW of Challis, Idaho · 4104 days ago · 5 km deep · 26 km away
  16. 2.38 km ESE of Challis, Idaho · 4098 days ago · 10 km deep · 5 km away
  17. 2.011 km SSE of Challis, Idaho · 4098 days ago · 13 km deep · 4 km away
  18. 1.810 km SE of Challis, Idaho · 4097 days ago · 8 km deep · 3 km away
  19. 2.38 km NW of Challis, Idaho · 4094 days ago · 5 km deep · 21 km away
  20. 2.43 km ENE of Challis, Idaho · 4087 days ago · 11 km deep · 11 km away
  21. 1.924 km ENE of Leadore, Idaho · 4086 days ago · 7 km deep · 90 km away

Before

  1. 2.612 km NNE of Stanley, Idaho · 4148 days ago · 18 km deep · 61 km away
  2. 2.111 km NNE of Stanley, Idaho · 4154 days ago · 14 km deep · 62 km away
  3. 1.911 km NNE of Stanley, Idaho · 4154 days ago · 12 km deep · 62 km away
  4. 1.810 km NE of Stanley, Idaho · 4154 days ago · 13 km deep · 61 km away
  5. 3.012 km NNE of Stanley, Idaho · 4154 days ago · 12 km deep · 63 km away · felt by 2
  6. 2.011 km NNE of Stanley, Idaho · 4154 days ago · 11 km deep · 63 km away
  7. 2.112 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 62 km away
  8. 2.011 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 63 km away
  9. 1.811 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 63 km away
  10. 2.010 km NE of Stanley, Idaho · 4155 days ago · 12 km deep · 62 km away
  11. 2.08 km NNE of Stanley, Idaho · 4155 days ago · 10 km deep · 64 km away
  12. 2.710 km NNE of Stanley, Idaho · 4155 days ago · 13 km deep · 63 km away
  13. 1.911 km NNE of Stanley, Idaho · 4155 days ago · 9 km deep · 63 km away
  14. 2.410 km NNE of Stanley, Idaho · 4155 days ago · 11 km deep · 63 km away
  15. 1.811 km NNE of Stanley, Idaho · 4156 days ago · 11 km deep · 62 km away
  16. 2.99 km NW of Challis, Idaho · 4158 days ago · 7 km deep · 22 km away
  17. 2.010 km NE of Stanley, Idaho · 4160 days ago · 8 km deep · 62 km away
  18. 1.910 km NNE of Stanley, Idaho · 4161 days ago · 11 km deep · 62 km away
  19. 2.311 km NNE of Stanley, Idaho · 4163 days ago · 13 km deep · 62 km away
  20. 2.011 km SE of Challis, Idaho · 4163 days ago · 9 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10002a7a (also filed as mb15793737). Read Tue, Sep 22, 2026, 3:09 PM UTC.