Montana earthquakes

M1.6 earthquake 39 km NNE of Leadore, Idaho

A magnitude 1.6 earthquake struck 39 km NNE of Leadore, Idaho on Sat, Mar 19, 2016, 8:43 PM MDT (02:43 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.2 21 km NW of Lima, Montana. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (ml), micro
Local time
UTC
2016-03-20 02:43:06 UTC
Depth
4.5 km (2.8 mi), shallow
Epicenter
44.996° N, 113.130° W
Region
Montana
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, 7.3 km in depth
Magnitude uncertainty
±0.20
Depth from
Operator assigned
Station coverage gap
107°
Stations used
11

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 12 in the 30 days before it.

After

  1. 1.919 km NE of Challis, Idaho · 3829 days ago · 7 km deep · 84 km away
  2. 2.2Western Montana · 3817 days ago · 2 km deep · 99 km away
  3. 1.729 km SSE of Virginia City, Montana · 3817 days ago · 4 km deep · 100 km away
  4. 2.129 km S of Virginia City, Montana · 3817 days ago · 2 km deep · 98 km away
  5. 2.629 km S of Virginia City, Montana · 3816 days ago · 3 km deep · 98 km away
  6. 2.529 km SSE of Virginia City, Montana · 3816 days ago · 9 km deep · 99 km away
  7. 1.729 km SSE of Virginia City, Montana · 3816 days ago · 5 km deep · 99 km away
  8. 3.229 km SSE of Virginia City, Montana · 3814 days ago · 2 km deep · 100 km away · felt by 1
  9. 2.629 km SSE of Virginia City, Montana · 3814 days ago · 2 km deep · 100 km away
  10. 2.329 km SSE of Virginia City, Montana · 3814 days ago · 8 km deep · 100 km away
  11. 3.028 km SSE of Virginia City, Montana · 3814 days ago · 3 km deep · 99 km away
  12. 2.929 km SSE of Virginia City, Montana · 3814 days ago · 5 km deep · 99 km away
  13. 2.729 km SSE of Virginia City, Montana · 3814 days ago · 6 km deep · 99 km away
  14. 1.514 km NE of Challis, Idaho · 3813 days ago · 6 km deep · 89 km away
  15. 2.029 km SSE of Virginia City, Montana · 3813 days ago · 3 km deep · 100 km away
  16. 2.329 km SSE of Virginia City, Montana · 3813 days ago · 6 km deep · 100 km away
  17. 2.529 km SSE of Virginia City, Montana · 3812 days ago · 3 km deep · 100 km away
  18. 2.129 km SSE of Virginia City, Montana · 3809 days ago · 3 km deep · 100 km away
  19. 1.828 km SSE of Virginia City, Montana · 3796 days ago · 9 km deep · 100 km away
  20. 2.328 km SSE of Virginia City, Montana · 3796 days ago · 3 km deep · 100 km away
  21. 1.526 km SW of Lima, Montana · 3791 days ago · 13 km deep · 66 km away
  22. 3.221 km NW of Lima, Montana · 3789 days ago · 8 km deep · 37 km away
  23. 1.620 km NW of Lima, Montana · 3786 days ago · 8 km deep · 38 km away
  24. 3.216 km E of Dillon, Montana · 3785 days ago · 10 km deep · 61 km away

Before

  1. 1.917 km NNE of Challis, Idaho · 3845 days ago · 5 km deep · 88 km away · felt by 1
  2. 2.2southern Idaho · 3849 days ago · 9 km deep · 89 km away
  3. 1.525 km SE of Challis, Idaho · 3850 days ago · 5 km deep · 98 km away
  4. 2.614 km NE of Challis, Idaho · 3850 days ago · 10 km deep · 90 km away
  5. 2.012 km N of Dillon, Montana · 3852 days ago · 9 km deep · 54 km away
  6. 1.714 km NE of Challis, Idaho · 3858 days ago · 5 km deep · 88 km away
  7. 2.013 km SE of Challis, Idaho · 3862 days ago · 5 km deep · 99 km away
  8. 1.714 km NE of Challis, Idaho · 3863 days ago · -2 km deep · 89 km away
  9. 2.114 km NE of Challis, Idaho · 3864 days ago · 5 km deep · 89 km away
  10. 3.615 km NE of Challis, Idaho · 3864 days ago · 7 km deep · 89 km away · felt by 9
  11. 2.316 km NNE of Challis, Idaho · 3865 days ago · 6 km deep · 88 km away
  12. 3.314 km NNE of Challis, Idaho · 3866 days ago · 6 km deep · 90 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80129919. Read Sun, Sep 27, 2026, 3:59 AM UTC.