Idaho earthquakes

M3.3 earthquake 14 km NNE of Challis, Idaho

A magnitude 3.3 earthquake struck 14 km NNE of Challis, Idaho on Fri, Feb 26, 2016, 12:39 AM MST (07:39 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.6 15 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.

Open the live map with earthquakes

The earthquake

Magnitude
3.3 (ml), minor
Local time
UTC
2016-02-26 07:39:37 UTC
Depth
6.3 km (3.9 mi), shallow
Epicenter
44.620° N, 114.136° W
Region
Idaho
Felt reports
1
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

1 person 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 3.6 km horizontally, 6.4 km in depth
Magnitude uncertainty
±0.17
Station coverage gap
51°
Stations used
31

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 32 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 1.821 km W of Challis, Idaho · 3868 days ago · 3 km deep · 30 km away
  2. 2.022 km WNW of Challis, Idaho · 3868 days ago · 7 km deep · 31 km away
  3. 2.316 km NNE of Challis, Idaho · 3867 days ago · 6 km deep · 2 km away
  4. 3.615 km NE of Challis, Idaho · 3866 days ago · 7 km deep · 1 km away · felt by 9
  5. 1.722 km WNW of Challis, Idaho · 3866 days ago · 5 km deep · 30 km away
  6. 2.114 km NE of Challis, Idaho · 3866 days ago · 5 km deep · 2 km away
  7. 1.622 km WNW of Challis, Idaho · 3865 days ago · 4 km deep · 30 km away
  8. 2.122 km W of Challis, Idaho · 3865 days ago · 5 km deep · 31 km away
  9. 1.724 km WNW of Challis, Idaho · 3865 days ago · 8 km deep · 32 km away
  10. 1.623 km W of Challis, Idaho · 3865 days ago · 2 km deep · 32 km away
  11. 1.714 km NE of Challis, Idaho · 3865 days ago · -2 km deep · 3 km away
  12. 2.223 km WNW of Challis, Idaho · 3864 days ago · 7 km deep · 31 km away
  13. 2.013 km SE of Challis, Idaho · 3864 days ago · 5 km deep · 21 km away
  14. 1.622 km WNW of Challis, Idaho · 3864 days ago · 7 km deep · 29 km away
  15. 1.514 km W of Clayton, Idaho · 3863 days ago · 6 km deep · 54 km away
  16. 2.523 km W of Challis, Idaho · 3862 days ago · 1 km deep · 32 km away
  17. 1.714 km NE of Challis, Idaho · 3860 days ago · 5 km deep · 5 km away
  18. 1.822 km W of Challis, Idaho · 3857 days ago · 4 km deep · 31 km away
  19. 2.614 km NE of Challis, Idaho · 3852 days ago · 10 km deep · 2 km away
  20. 1.8southern Idaho · 3852 days ago · 7 km deep · 13 km away
  21. 1.525 km SE of Challis, Idaho · 3852 days ago · 5 km deep · 32 km away
  22. 2.2southern Idaho · 3851 days ago · 9 km deep · 3 km away
  23. 1.622 km WNW of Challis, Idaho · 3849 days ago · 3 km deep · 30 km away
  24. 1.917 km NNE of Challis, Idaho · 3847 days ago · 5 km deep · 2 km away · felt by 1
  25. 1.622 km WNW of Challis, Idaho · 3845 days ago · 5 km deep · 30 km away
  26. 1.639 km NNE of Leadore, Idaho · 3845 days ago · 5 km deep · 90 km away
  27. 1.510 km SE of Challis, Idaho · 3841 days ago · 5 km deep · 20 km away
  28. 1.629 km E of Clayton, Idaho · 3838 days ago · 5 km deep · 44 km away
  29. 1.722 km WNW of Challis, Idaho · 3838 days ago · 6 km deep · 31 km away
  30. 1.919 km NE of Challis, Idaho · 3831 days ago · 7 km deep · 6 km away
  31. 1.514 km NE of Challis, Idaho · 3815 days ago · 6 km deep · 2 km away
  32. 1.64 km NW of Challis, Idaho · 3811 days ago · 7 km deep · 15 km away

Before

  1. 3.223 km WNW of Challis, Idaho · 3868 days ago · 7 km deep · 31 km away
  2. 1.823 km WNW of Challis, Idaho · 3870 days ago · 5 km deep · 31 km away
  3. 1.722 km WNW of Challis, Idaho · 3872 days ago · 7 km deep · 29 km away
  4. 2.223 km WNW of Challis, ID · 3872 days ago · 6 km deep · 31 km away
  5. 1.622 km W of Challis, Idaho · 3872 days ago · 5 km deep · 31 km away
  6. 1.914 km SE of Challis, Idaho · 3877 days ago · 7 km deep · 24 km away
  7. 1.512 km SE of Challis, Idaho · 3879 days ago · 6 km deep · 21 km away
  8. 1.810 km NW of Challis, Idaho · 3879 days ago · -1 km deep · 16 km away
  9. 1.920 km SE of Challis, Idaho · 3880 days ago · 3 km deep · 28 km away
  10. 1.512 km SE of Challis, Idaho · 3881 days ago · 6 km deep · 21 km away
  11. 2.212 km SE of Challis, Idaho · 3884 days ago · 8 km deep · 22 km away
  12. 1.813 km SE of Challis, Idaho · 3885 days ago · 7 km deep · 22 km away
  13. 2.315 km W of Clayton, Idaho · 3886 days ago · 8 km deep · 54 km away
  14. 1.822 km WNW of Challis, Idaho · 3891 days ago · 6 km deep · 31 km away
  15. 1.622 km WNW of Challis, Idaho · 3891 days ago · 5 km deep · 30 km away
  16. 1.819 km SE of Challis, Idaho · 3891 days ago · 2 km deep · 26 km away
  17. 2.32 km NNW of Challis, Idaho · 3893 days ago · 8 km deep · 14 km away
  18. 1.6Idaho-Montana border region · 3893 days ago · 8 km deep · 100 km away
  19. 3.136 km SW of Lima, Montana · 3893 days ago · 5 km deep · 100 km away
  20. 1.64 km NNW of Challis, Idaho · 3893 days ago · 5 km deep · 13 km away

Earthquakes todayIdaho earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event us10004sux (also filed as mb80126629). Read Tue, Sep 29, 2026, 2:55 AM UTC.