Idaho earthquakes

M1.8 earthquake 9 km N of Stanley, Idaho

A magnitude 1.8 earthquake struck 9 km N of Stanley, Idaho on Wed, Sep 5, 2018, 2:12 AM MDT (08:12 UTC), 3 km (2 mi) below the surface.

A larger quake followed: M2.8 13 km SE 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, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2018-09-05 08:12:13 UTC
Depth
2.8 km (1.8 mi), shallow
Epicenter
44.297° N, 114.959° 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 1.1 km horizontally, 4.6 km in depth
Magnitude uncertainty
±0.14
Depth from
From location
Station coverage gap
139°
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: 25 in the 60 days after this one and 11 in the 30 days before it.

After

  1. 2.08 km N of Stanley, Idaho · 2951 days ago · 10 km deep · 1 km away
  2. 2.339 km NNW of Stanley, Idaho · 2950 days ago · 5 km deep · 30 km away
  3. 2.813 km SE of Challis, Idaho · 2940 days ago · 5 km deep · 69 km away · felt by 3
  4. 2.336 km ENE of Challis, Idaho · 2938 days ago · 11 km deep · 98 km away
  5. 2.434 km NE of Challis, Idaho · 2938 days ago · 11 km deep · 96 km away
  6. 1.634 km SE of Stanley, Idaho · 2934 days ago · 14 km deep · 43 km away
  7. 1.610 km SE of Challis, Idaho · 2929 days ago · 7 km deep · 68 km away
  8. 2.18 km N of Stanley, Idaho · 2921 days ago · 4 km deep · 1 km away
  9. 2.43 km NW of Stanley, Idaho · 2921 days ago · 5 km deep · 6 km away
  10. 1.89 km N of Stanley, Idaho · 2921 days ago · 6 km deep · 0 km away
  11. 1.6southern Idaho · 2921 days ago · 6 km deep · 1 km away
  12. 2.512 km NNE of Stanley, Idaho · 2921 days ago · 5 km deep · 6 km away · felt by 1
  13. 1.67 km NNW of Stanley, Idaho · 2921 days ago · 5 km deep · 1 km away
  14. 1.67 km NNW of Stanley, Idaho · 2921 days ago · 4 km deep · 3 km away
  15. 1.69 km N of Stanley, Idaho · 2920 days ago · 4 km deep · 0 km away
  16. 1.616 km SE of Challis, Idaho · 2919 days ago · 4 km deep · 70 km away
  17. 1.68 km N of Stanley, Idaho · 2917 days ago · 6 km deep · 1 km away
  18. 2.49 km N of Stanley, Idaho · 2917 days ago · 3 km deep · 1 km away
  19. 1.633 km W of Challis, Idaho · 2908 days ago · 2 km deep · 38 km away
  20. 1.634 km NW of Mackay, Idaho · 2904 days ago · 1 km deep · 84 km away
  21. 2.320 km WNW of Mackay, Idaho · 2899 days ago · 6 km deep · 95 km away · felt by 1
  22. 1.65 km N of Stanley, Idaho · 2894 days ago · 3 km deep · 4 km away
  23. 1.76 km N of Stanley, Idaho · 2894 days ago · 0 km deep · 3 km away
  24. 2.19 km NNW of Stanley, Idaho · 2892 days ago · 4 km deep · 1 km away
  25. 2.26 km N of Stanley, Idaho · 2892 days ago · 3 km deep · 3 km away

Before

  1. 1.935 km ESE of Clayton, Idaho · 2955 days ago · 0 km deep · 80 km away
  2. 1.813 km NNE of Clayton, Idaho · 2960 days ago · 3 km deep · 48 km away
  3. 2.07 km N of Stanley, Idaho · 2960 days ago · 13 km deep · 2 km away
  4. 2.38 km S of Cascade, Idaho · 2960 days ago · 6 km deep · 89 km away
  5. 2.110 km W of Clayton, Idaho · 2966 days ago · 13 km deep · 34 km away
  6. 2.426 km NE of Challis, Idaho · 2969 days ago · 5 km deep · 88 km away
  7. 1.931 km NNW of Challis, Idaho · 2972 days ago · 9 km deep · 65 km away
  8. 1.727 km S of Clayton, Idaho · 2973 days ago · 4 km deep · 53 km away
  9. 2.132 km NNW of Challis, Idaho · 2975 days ago · 5 km deep · 66 km away
  10. 2.212 km W of Clayton, Idaho · 2978 days ago · 12 km deep · 32 km away
  11. 1.752 km NW of Challis, Idaho · 2980 days ago · 7 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80308789. Read Sun, Oct 4, 2026, 3:07 AM UTC.