Idaho earthquakes

M1.8 earthquake 22 km W of Challis, Idaho

A magnitude 1.8 earthquake struck 22 km W of Challis, Idaho on Mon, Mar 7, 2016, 4:19 PM MST (23:19 UTC), 4 km (2 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
1.8 (ml), micro
Local time
UTC
2016-03-07 23:19:30 UTC
Depth
3.8 km (2.3 mi), shallow
Epicenter
44.544° N, 114.515° 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 0.6 km horizontally, 4.4 km in depth
Magnitude uncertainty
±0.33
Depth from
From location
Station coverage gap
77°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 31 in the 30 days before it.

After

  1. 2.614 km NE of Challis, Idaho · 3853 days ago · 10 km deep · 32 km away
  2. 1.8southern Idaho · 3852 days ago · 7 km deep · 18 km away
  3. 1.525 km SE of Challis, Idaho · 3852 days ago · 5 km deep · 47 km away
  4. 2.2southern Idaho · 3852 days ago · 9 km deep · 32 km away
  5. 1.622 km WNW of Challis, Idaho · 3849 days ago · 3 km deep · 1 km away
  6. 1.917 km NNE of Challis, Idaho · 3848 days ago · 5 km deep · 33 km away · felt by 1
  7. 1.622 km WNW of Challis, Idaho · 3846 days ago · 5 km deep · 2 km away
  8. 1.510 km SE of Challis, Idaho · 3841 days ago · 5 km deep · 32 km away
  9. 1.629 km E of Clayton, Idaho · 3839 days ago · 5 km deep · 52 km away
  10. 1.722 km WNW of Challis, Idaho · 3839 days ago · 6 km deep · 0 km away
  11. 1.919 km NE of Challis, Idaho · 3831 days ago · 7 km deep · 37 km away
  12. 1.514 km NE of Challis, Idaho · 3816 days ago · 6 km deep · 32 km away
  13. 1.64 km NW of Challis, Idaho · 3812 days ago · 7 km deep · 19 km away
  14. 1.640 km NNW of Stanley, Idaho · 3807 days ago · 9 km deep · 44 km away
  15. 2.638 km NNW of Stanley, Idaho · 3807 days ago · 4 km deep · 43 km away

Before

  1. 1.714 km NE of Challis, Idaho · 3861 days ago · 5 km deep · 34 km away
  2. 2.523 km W of Challis, Idaho · 3862 days ago · 1 km deep · 1 km away
  3. 1.514 km W of Clayton, Idaho · 3864 days ago · 6 km deep · 33 km away
  4. 1.622 km WNW of Challis, Idaho · 3864 days ago · 7 km deep · 2 km away
  5. 2.013 km SE of Challis, Idaho · 3864 days ago · 5 km deep · 35 km away
  6. 2.223 km WNW of Challis, Idaho · 3865 days ago · 7 km deep · 1 km away
  7. 1.714 km NE of Challis, Idaho · 3865 days ago · -2 km deep · 33 km away
  8. 1.623 km W of Challis, Idaho · 3865 days ago · 2 km deep · 1 km away
  9. 1.724 km WNW of Challis, Idaho · 3865 days ago · 8 km deep · 2 km away
  10. 2.122 km W of Challis, Idaho · 3865 days ago · 5 km deep · 1 km away
  11. 1.622 km WNW of Challis, Idaho · 3866 days ago · 4 km deep · 1 km away
  12. 2.114 km NE of Challis, Idaho · 3866 days ago · 5 km deep · 32 km away
  13. 1.722 km WNW of Challis, Idaho · 3867 days ago · 5 km deep · 1 km away
  14. 3.615 km NE of Challis, Idaho · 3867 days ago · 7 km deep · 32 km away · felt by 9
  15. 2.316 km NNE of Challis, Idaho · 3868 days ago · 6 km deep · 32 km away
  16. 2.022 km WNW of Challis, Idaho · 3868 days ago · 7 km deep · 1 km away
  17. 1.821 km W of Challis, Idaho · 3868 days ago · 3 km deep · 1 km away
  18. 3.314 km NNE of Challis, Idaho · 3868 days ago · 6 km deep · 31 km away · felt by 1
  19. 3.223 km WNW of Challis, Idaho · 3869 days ago · 7 km deep · 1 km away
  20. 1.823 km WNW of Challis, Idaho · 3871 days ago · 5 km deep · 0 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80128619. Read Tue, Sep 29, 2026, 7:06 PM UTC.