Idaho earthquakes

M1.7 earthquake 7 km NNW of Challis, Idaho

A magnitude 1.7 earthquake struck 7 km NNW of Challis, Idaho on Thu, Mar 22, 2018, 8:28 AM MDT (14:28 UTC), 3 km (2 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
1.7 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2018-03-22 14:28:23 UTC
Depth
2.7 km (1.7 mi), shallow
Epicenter
44.560° N, 114.279° 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 0.9 km horizontally, 3.2 km in depth
Magnitude uncertainty
±0.32
Depth from
From location
Station coverage gap
112°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 27 in the 60 days after this one and 12 in the 30 days before it.

After

  1. 1.714 km NW of Salmon, Idaho · 3112 days ago · 6 km deep · 80 km away
  2. 1.914 km W of Clayton, Idaho · 3110 days ago · 4 km deep · 40 km away
  3. 1.622 km NNW of Clayton, Idaho · 3109 days ago · 5 km deep · 24 km away
  4. 1.812 km W of Clayton, Idaho · 3100 days ago · 3 km deep · 39 km away
  5. 2.022 km SSE of Clayton, Idaho · 3099 days ago · 17 km deep · 52 km away
  6. 1.714 km W of Clayton, Idaho · 3095 days ago · 4 km deep · 40 km away
  7. 2.0southern Idaho · 3087 days ago · 11 km deep · 40 km away
  8. 2.114 km W of Clayton, Idaho · 3086 days ago · 3 km deep · 40 km away
  9. 2.313 km W of Clayton, Idaho · 3084 days ago · 11 km deep · 40 km away
  10. 1.913 km W of Clayton, Idaho · 3080 days ago · 7 km deep · 42 km away
  11. 2.318 km W of Clayton, Idaho · 3080 days ago · 5 km deep · 42 km away
  12. 1.814 km W of Clayton, Idaho · 3080 days ago · 5 km deep · 39 km away
  13. 2.313 km W of Clayton, Idaho · 3078 days ago · 13 km deep · 40 km away
  14. 1.514 km W of Clayton, Idaho · 3078 days ago · 4 km deep · 39 km away
  15. 2.013 km W of Clayton, Idaho · 3078 days ago · 10 km deep · 39 km away
  16. 1.728 km N of Sun Valley, Idaho · 3076 days ago · 9 km deep · 68 km away
  17. 1.613 km WSW of Stanley, Idaho · 3076 days ago · 3 km deep · 77 km away
  18. 1.514 km W of Clayton, Idaho · 3072 days ago · 6 km deep · 43 km away
  19. 1.7Idaho-Montana border region · 3070 days ago · 5 km deep · 89 km away
  20. 2.514 km WNW of Clayton, Idaho · 3070 days ago · 19 km deep · 37 km away · felt by 2
  21. 2.412 km W of Clayton, Idaho · 3070 days ago · 13 km deep · 40 km away
  22. 1.912 km W of Clayton, Idaho · 3070 days ago · 13 km deep · 40 km away
  23. 1.824 km SSW of Clayton, Idaho · 3070 days ago · 9 km deep · 59 km away
  24. 2.013 km W of Clayton, Idaho · 3069 days ago · 11 km deep · 39 km away
  25. 2.222 km SSW of Clayton, Idaho · 3069 days ago · 7 km deep · 57 km away
  26. 2.233 km SSE of Salmon, Idaho · 3067 days ago · 4 km deep · 62 km away
  27. 1.728 km S of Clayton, Idaho · 3060 days ago · 9 km deep · 63 km away

Before

  1. 2.414 km NW of Challis, Idaho · 3120 days ago · 5 km deep · 8 km away · felt by 2
  2. 1.611 km WNW of Clayton, Idaho · 3122 days ago · 7 km deep · 36 km away
  3. 1.911 km N of Stanley, Idaho · 3124 days ago · 10 km deep · 59 km away
  4. 2.628 km SW of Stanley, Idaho · 3126 days ago · 5 km deep · 92 km away · felt by 3
  5. 2.113 km W of Clayton, Idaho · 3126 days ago · 8 km deep · 40 km away
  6. 2.621 km E of Stanley, Idaho · 3126 days ago · 21 km deep · 51 km away
  7. 1.848 km WNW of Challis, Idaho · 3126 days ago · 5 km deep · 43 km away
  8. 1.814 km W of Clayton, Idaho · 3139 days ago · 6 km deep · 40 km away
  9. 1.814 km W of Clayton, Idaho · 3139 days ago · 6 km deep · 42 km away
  10. 2.012 km W of Clayton, Idaho · 3140 days ago · 7 km deep · 41 km away
  11. 1.713 km W of Clayton, Idaho · 3140 days ago · 9 km deep · 41 km away
  12. 1.924 km SE of Challis, Idaho · 3140 days ago · 6 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80286739. Read Mon, Oct 5, 2026, 1:57 AM UTC.