Idaho earthquakes

M2.1 earthquake 14 km NE of Challis, Idaho

A magnitude 2.1 earthquake struck 14 km NE of Challis, Idaho on Sun, Feb 28, 2016, 4:07 AM MST (11:07 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.6 14 km NE 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
2.1 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2016-02-28 11:07:19 UTC
Depth
5.1 km (3.2 mi), shallow
Epicenter
44.606° N, 114.116° W
Region
Idaho
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.7 km horizontally, 2.4 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
68°
Stations used
13

Nearest places

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

Nearby

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

After

  1. 1.622 km WNW of Challis, Idaho · 3868 days ago · 4 km deep · 32 km away
  2. 2.122 km W of Challis, Idaho · 3868 days ago · 5 km deep · 32 km away
  3. 1.724 km WNW of Challis, Idaho · 3868 days ago · 8 km deep · 34 km away
  4. 1.623 km W of Challis, Idaho · 3868 days ago · 2 km deep · 33 km away
  5. 1.714 km NE of Challis, Idaho · 3868 days ago · -2 km deep · 1 km away
  6. 2.223 km WNW of Challis, Idaho · 3867 days ago · 7 km deep · 32 km away
  7. 2.013 km SE of Challis, Idaho · 3867 days ago · 5 km deep · 19 km away
  8. 1.622 km WNW of Challis, Idaho · 3867 days ago · 7 km deep · 31 km away
  9. 1.514 km W of Clayton, Idaho · 3866 days ago · 6 km deep · 54 km away
  10. 2.523 km W of Challis, Idaho · 3865 days ago · 1 km deep · 33 km away
  11. 1.714 km NE of Challis, Idaho · 3863 days ago · 5 km deep · 3 km away
  12. 1.822 km W of Challis, Idaho · 3860 days ago · 4 km deep · 32 km away
  13. 2.614 km NE of Challis, Idaho · 3855 days ago · 10 km deep · 1 km away
  14. 1.8southern Idaho · 3855 days ago · 7 km deep · 14 km away
  15. 1.525 km SE of Challis, Idaho · 3855 days ago · 5 km deep · 30 km away
  16. 2.2southern Idaho · 3854 days ago · 9 km deep · 1 km away
  17. 1.622 km WNW of Challis, Idaho · 3852 days ago · 3 km deep · 32 km away
  18. 1.917 km NNE of Challis, Idaho · 3850 days ago · 5 km deep · 3 km away · felt by 1
  19. 1.622 km WNW of Challis, Idaho · 3848 days ago · 5 km deep · 32 km away
  20. 1.639 km NNE of Leadore, Idaho · 3848 days ago · 5 km deep · 89 km away
  21. 1.510 km SE of Challis, Idaho · 3844 days ago · 5 km deep · 18 km away
  22. 1.629 km E of Clayton, Idaho · 3841 days ago · 5 km deep · 43 km away
  23. 1.722 km WNW of Challis, Idaho · 3841 days ago · 6 km deep · 32 km away
  24. 1.919 km NE of Challis, Idaho · 3834 days ago · 7 km deep · 5 km away
  25. 1.514 km NE of Challis, Idaho · 3818 days ago · 6 km deep · 0 km away
  26. 1.64 km NW of Challis, Idaho · 3814 days ago · 7 km deep · 15 km away
  27. 1.640 km NNW of Stanley, Idaho · 3809 days ago · 9 km deep · 75 km away
  28. 2.638 km NNW of Stanley, Idaho · 3809 days ago · 4 km deep · 75 km away

Before

  1. 1.722 km WNW of Challis, Idaho · 3869 days ago · 5 km deep · 32 km away
  2. 3.615 km NE of Challis, Idaho · 3869 days ago · 7 km deep · 1 km away · felt by 9
  3. 2.316 km NNE of Challis, Idaho · 3870 days ago · 6 km deep · 4 km away
  4. 2.022 km WNW of Challis, Idaho · 3871 days ago · 7 km deep · 32 km away
  5. 1.821 km W of Challis, Idaho · 3871 days ago · 3 km deep · 31 km away
  6. 3.314 km NNE of Challis, Idaho · 3871 days ago · 6 km deep · 2 km away · felt by 1
  7. 3.223 km WNW of Challis, Idaho · 3871 days ago · 7 km deep · 32 km away
  8. 1.823 km WNW of Challis, Idaho · 3873 days ago · 5 km deep · 32 km away
  9. 1.722 km WNW of Challis, Idaho · 3875 days ago · 7 km deep · 31 km away
  10. 2.223 km WNW of Challis, ID · 3875 days ago · 6 km deep · 32 km away
  11. 1.622 km W of Challis, Idaho · 3875 days ago · 5 km deep · 32 km away
  12. 1.914 km SE of Challis, Idaho · 3880 days ago · 7 km deep · 22 km away
  13. 1.512 km SE of Challis, Idaho · 3882 days ago · 6 km deep · 19 km away
  14. 1.810 km NW of Challis, Idaho · 3882 days ago · -1 km deep · 17 km away
  15. 1.920 km SE of Challis, Idaho · 3883 days ago · 3 km deep · 26 km away
  16. 1.512 km SE of Challis, Idaho · 3884 days ago · 6 km deep · 19 km away
  17. 2.212 km SE of Challis, Idaho · 3887 days ago · 8 km deep · 20 km away
  18. 1.813 km SE of Challis, Idaho · 3888 days ago · 7 km deep · 20 km away
  19. 2.315 km W of Clayton, Idaho · 3889 days ago · 8 km deep · 53 km away
  20. 1.822 km WNW of Challis, Idaho · 3894 days ago · 6 km deep · 32 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80127529. Read Fri, Oct 2, 2026, 3:42 AM UTC.