Idaho earthquakes

M1.9 earthquake 11 km N of Stanley, Idaho

A magnitude 1.9 earthquake struck 11 km N of Stanley, Idaho on Fri, Mar 16, 2018, 7:40 PM MDT (01:40 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.5 14 km WNW of Clayton, 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
1.9 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2018-03-17 01:40:40 UTC
Depth
10.4 km (6.4 mi), shallow
Epicenter
44.318° N, 114.935° 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 0.8 km horizontally, 1.7 km in depth
Magnitude uncertainty
±0.36
Depth from
From location
Station coverage gap
114°
Stations used
5

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 9 in the 30 days before it.

After

  1. 1.611 km WNW of Clayton, Idaho · 3120 days ago · 7 km deep · 32 km away
  2. 2.414 km NW of Challis, Idaho · 3118 days ago · 5 km deep · 55 km away · felt by 2
  3. 1.77 km NNW of Challis, Idaho · 3116 days ago · 3 km deep · 59 km away
  4. 1.914 km W of Clayton, Idaho · 3108 days ago · 4 km deep · 29 km away
  5. 1.622 km NNW of Clayton, Idaho · 3107 days ago · 5 km deep · 35 km away
  6. 1.93 km SE of Smiths Ferry, Idaho · 3106 days ago · 12 km deep · 89 km away
  7. 1.812 km W of Clayton, Idaho · 3098 days ago · 3 km deep · 30 km away
  8. 2.022 km SSE of Clayton, Idaho · 3097 days ago · 17 km deep · 60 km away
  9. 1.714 km W of Clayton, Idaho · 3093 days ago · 4 km deep · 28 km away
  10. 2.0southern Idaho · 3085 days ago · 11 km deep · 29 km away
  11. 2.114 km W of Clayton, Idaho · 3084 days ago · 3 km deep · 29 km away
  12. 2.313 km W of Clayton, Idaho · 3082 days ago · 11 km deep · 30 km away
  13. 1.913 km W of Clayton, Idaho · 3078 days ago · 7 km deep · 30 km away
  14. 2.318 km W of Clayton, Idaho · 3078 days ago · 5 km deep · 25 km away
  15. 1.814 km W of Clayton, Idaho · 3078 days ago · 5 km deep · 29 km away
  16. 2.313 km W of Clayton, Idaho · 3076 days ago · 13 km deep · 30 km away
  17. 1.514 km W of Clayton, Idaho · 3076 days ago · 4 km deep · 29 km away
  18. 2.013 km W of Clayton, Idaho · 3076 days ago · 10 km deep · 29 km away
  19. 1.728 km N of Sun Valley, Idaho · 3074 days ago · 9 km deep · 60 km away
  20. 1.613 km WSW of Stanley, Idaho · 3074 days ago · 3 km deep · 19 km away
  21. 1.514 km W of Clayton, Idaho · 3070 days ago · 6 km deep · 30 km away
  22. 2.514 km WNW of Clayton, Idaho · 3068 days ago · 19 km deep · 29 km away · felt by 2
  23. 2.412 km W of Clayton, Idaho · 3068 days ago · 13 km deep · 31 km away
  24. 1.912 km W of Clayton, Idaho · 3068 days ago · 13 km deep · 30 km away
  25. 1.824 km SSW of Clayton, Idaho · 3068 days ago · 9 km deep · 43 km away
  26. 2.013 km W of Clayton, Idaho · 3067 days ago · 11 km deep · 30 km away
  27. 2.222 km SSW of Clayton, Idaho · 3067 days ago · 7 km deep · 43 km away
  28. 2.136 km E of Cascade, Idaho · 3063 days ago · 11 km deep · 54 km away

Before

  1. 2.628 km SW of Stanley, Idaho · 3124 days ago · 5 km deep · 38 km away · felt by 3
  2. 2.113 km W of Clayton, Idaho · 3124 days ago · 8 km deep · 30 km away
  3. 2.621 km E of Stanley, Idaho · 3124 days ago · 21 km deep · 24 km away
  4. 1.848 km WNW of Challis, Idaho · 3124 days ago · 5 km deep · 40 km away
  5. 1.814 km W of Clayton, Idaho · 3137 days ago · 6 km deep · 29 km away
  6. 1.814 km W of Clayton, Idaho · 3137 days ago · 6 km deep · 29 km away
  7. 2.012 km W of Clayton, Idaho · 3138 days ago · 7 km deep · 31 km away
  8. 1.713 km W of Clayton, Idaho · 3138 days ago · 9 km deep · 30 km away
  9. 1.924 km SE of Challis, Idaho · 3138 days ago · 6 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80286359. Read Sat, Oct 3, 2026, 1:41 AM UTC.