Idaho earthquakes

M2.3 earthquake 15 km NNW of Challis, Idaho

A magnitude 2.3 earthquake struck 15 km NNW of Challis, Idaho on Wed, Jan 28, 2015, 3:26 PM MST (22:26 UTC), 3 km (2 mi) below the surface.

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

A larger quake followed: M3.7 22 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
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2015-01-28 22:26:14 UTC
Depth
2.9 km (1.8 mi), shallow
Epicenter
44.620° N, 114.336° 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 1.1 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.50
Station coverage gap
90°
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: 24 in the 60 days after this one and 84 in the 30 days before it.

After

  1. 2.711 km ESE of Challis, Idaho · 4266 days ago · 12 km deep · 26 km away · felt by 1
  2. 2.711 km SE of Challis, Idaho · 4266 days ago · 11 km deep · 26 km away
  3. 2.38 km SE of Challis, Idaho · 4265 days ago · 13 km deep · 23 km away
  4. 2.324 km N of Challis, Idaho · 4264 days ago · 14 km deep · 16 km away
  5. 2.422 km SE of Challis, Idaho · 4263 days ago · 12 km deep · 38 km away
  6. 2.89 km SE of Challis, Idaho · 4258 days ago · 11 km deep · 25 km away
  7. 2.910 km SE of Challis, Idaho · 4258 days ago · 12 km deep · 25 km away · felt by 1
  8. 2.510 km SE of Challis, Idaho · 4258 days ago · 13 km deep · 26 km away
  9. 3.722 km SE of Challis, Idaho · 4256 days ago · 14 km deep · 37 km away
  10. 2.98 km SE of Challis, Idaho · 4256 days ago · 14 km deep · 24 km away · felt by 1
  11. 2.822 km SE of Challis, Idaho · 4256 days ago · 14 km deep · 37 km away
  12. 2.012 km SE of Challis, Idaho · 4254 days ago · 8 km deep · 28 km away
  13. 3.022 km SE of Challis, Idaho · 4252 days ago · 13 km deep · 38 km away
  14. 2.4southern Idaho · 4249 days ago · 13 km deep · 27 km away
  15. 2.0southern Idaho · 4237 days ago · 11 km deep · 26 km away
  16. 3.09 km SE of Challis, Idaho · 4233 days ago · 14 km deep · 24 km away · felt by 2
  17. 2.810 km SE of Challis, Idaho · 4232 days ago · 12 km deep · 26 km away
  18. 3.111 km SE of Challis, Idaho · 4230 days ago · 11 km deep · 27 km away
  19. 1.910 km SE of Challis, Idaho · 4225 days ago · 13 km deep · 25 km away
  20. 2.511 km SE of Challis, Idaho · 4225 days ago · 11 km deep · 26 km away
  21. 2.314 km NW of Challis, Idaho · 4217 days ago · 5 km deep · 1 km away
  22. 2.09 km SE of Challis, Idaho · 4215 days ago · 12 km deep · 25 km away
  23. 2.012 km N of Challis, Idaho · 4207 days ago · 11 km deep · 8 km away
  24. 2.115 km NNW of Challis, Idaho · 4207 days ago · 4 km deep · 1 km away

Before

  1. 3.622 km SE of Challis, Idaho · 4270 days ago · 13 km deep · 38 km away · felt by 3
  2. 2.451 km WNW of Challis, Idaho · 4275 days ago · 12 km deep · 38 km away
  3. 2.353 km NW of Challis, Idaho · 4275 days ago · 10 km deep · 40 km away
  4. 2.654 km NW of Challis, Idaho · 4275 days ago · 11 km deep · 40 km away
  5. 2.853 km NW of Challis, Idaho · 4275 days ago · 12 km deep · 39 km away
  6. 2.654 km NW of Challis, Idaho · 4275 days ago · 9 km deep · 40 km away
  7. 2.853 km NW of Challis, Idaho · 4275 days ago · 11 km deep · 39 km away
  8. 2.39 km SE of Challis, Idaho · 4279 days ago · 12 km deep · 25 km away
  9. 2.111 km SE of Challis, Idaho · 4280 days ago · 8 km deep · 26 km away
  10. 2.49 km SE of Challis, Idaho · 4280 days ago · 12 km deep · 25 km away
  11. 2.79 km SE of Challis, Idaho · 4280 days ago · 14 km deep · 24 km away
  12. 2.311 km SE of Challis, Idaho · 4280 days ago · 9 km deep · 26 km away
  13. 3.29 km SE of Challis, Idaho · 4280 days ago · 12 km deep · 25 km away
  14. 3.511 km SE of Challis, Idaho · 4280 days ago · 13 km deep · 27 km away · felt by 1
  15. 2.437 km NW of Challis, Idaho · 4280 days ago · 9 km deep · 23 km away
  16. 2.79 km SE of Challis, Idaho · 4281 days ago · 13 km deep · 25 km away
  17. 2.39 km SE of Challis, Idaho · 4281 days ago · 10 km deep · 24 km away
  18. 2.210 km SE of Challis, Idaho · 4282 days ago · 9 km deep · 26 km away
  19. 2.310 km SE of Challis, Idaho · 4284 days ago · 12 km deep · 25 km away
  20. 2.210 km SE of Challis, Idaho · 4284 days ago · 12 km deep · 25 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb15405418. Read Mon, Oct 5, 2026, 3:01 AM UTC.