Idaho earthquakes

M3.5 earthquake 21 km E of Clayton, Idaho

A magnitude 3.5 earthquake struck 21 km E of Clayton, Idaho on Tue, Jul 29, 1986, 1:04 PM MDT (19:04 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.9 24 km SE of Stanley, Idaho. 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
3.5 (ml), minor
Local time
UTC
1986-07-29 19:04:18 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
44.247° N, 114.136° 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.

Depth from
OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 3.225 km SSE of Stanley, Idaho · 14629 days ago · 5 km deep · 59 km away
  2. 3.924 km SE of Stanley, Idaho · 14629 days ago · 5 km deep · 55 km away
  3. 3.427 km SSE of Stanley, Idaho · 14628 days ago · 5 km deep · 60 km away
  4. 4.022 km SE of Stanley, Idaho · 14628 days ago · 5 km deep · 53 km away
  5. 3.326 km SE of Stanley, Idaho · 14628 days ago · 5 km deep · 52 km away
  6. 4.027 km SSE of Stanley, Idaho · 14627 days ago · 5 km deep · 56 km away
  7. 3.430 km SSE of Stanley, Idaho · 14627 days ago · 5 km deep · 57 km away
  8. 3.525 km SSE of Stanley, Idaho · 14626 days ago · 5 km deep · 58 km away
  9. 3.526 km SE of Stanley, Idaho · 14621 days ago · 5 km deep · 50 km away
  10. 3.431 km SSE of Stanley, Idaho · 14621 days ago · 5 km deep · 66 km away
  11. 4.025 km SE of Stanley, Idaho · 14621 days ago · 5 km deep · 49 km away
  12. 3.131 km SSE of Stanley, Idaho · 14618 days ago · 5 km deep · 58 km away
  13. 3.524 km SE of Stanley, Idaho · 14615 days ago · 5 km deep · 51 km away
  14. 3.424 km SE of Stanley, Idaho · 14610 days ago · 5 km deep · 55 km away
  15. 3.727 km SSE of Stanley, Idaho · 14608 days ago · 5 km deep · 56 km away
  16. 4.326 km SE of Stanley, Idaho · 14605 days ago · 5 km deep · 55 km away
  17. 4.624 km SE of Stanley, Idaho · 14605 days ago · 5 km deep · 54 km away
  18. 3.325 km SSE of Stanley, Idaho · 14605 days ago · 5 km deep · 57 km away
  19. 3.322 km SE of Stanley, Idaho · 14605 days ago · 5 km deep · 56 km away
  20. 3.832 km SSE of Stanley, Idaho · 14605 days ago · 5 km deep · 61 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002wpb. Read Tue, Sep 22, 2026, 8:06 AM UTC.