Idaho earthquakes

M4.3 earthquake 34 km WNW of Mackay, Idaho

A magnitude 4.3 earthquake struck 34 km WNW of Mackay, Idaho on Sat, Oct 29, 1983, 7:24 PM MDT (01:24 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M4.5 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
4.3 (mb), light
Local time
UTC
1983-10-30 01:24:51 UTC
Depth
12.7 km (7.9 mi), shallow
Epicenter
44.083° N, 113.970° 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.

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 53 in the 60 days after this one and 21 in the 30 days before it.

After

  1. 4.216 km ESE of Clayton, Idaho · 15669 days ago · 10 km deep · 24 km away
  2. 4.014 km E of Clayton, Idaho · 15669 days ago · 10 km deep · 29 km away
  3. 3.924 km SE of Clayton, Idaho · 15669 days ago · 10 km deep · 18 km away
  4. 3.922 km ENE of Clayton, Idaho · 15669 days ago · 10 km deep · 27 km away
  5. 3.723 km E of Clayton, Idaho · 15669 days ago · 10 km deep · 26 km away
  6. 3.624 km SSE of Challis, Idaho · 15668 days ago · 10 km deep · 27 km away
  7. 3.837 km ESE of Clayton, Idaho · 15668 days ago · 10 km deep · 9 km away
  8. 3.623 km SE of Challis, Idaho · 15668 days ago · 10 km deep · 33 km away
  9. 3.524 km SE of Challis, Idaho · 15668 days ago · 10 km deep · 28 km away
  10. 3.632 km E of Clayton, Idaho · 15667 days ago · 10 km deep · 20 km away
  11. 3.735 km ESE of Clayton, Idaho · 15666 days ago · 11 km deep · 8 km away
  12. 3.719 km E of Clayton, Idaho · 15665 days ago · 10 km deep · 24 km away
  13. 4.225 km E of Clayton, Idaho · 15665 days ago · 5 km deep · 23 km away
  14. 4.321 km E of Clayton, Idaho · 15665 days ago · 10 km deep · 27 km away
  15. 3.415 km SSE of Challis, Idaho · 15665 days ago · 10 km deep · 36 km away
  16. 3.921 km E of Clayton, Idaho · 15665 days ago · 10 km deep · 24 km away
  17. 3.618 km E of Clayton, Idaho · 15665 days ago · 10 km deep · 26 km away
  18. 3.517 km SE of Challis, Idaho · 15665 days ago · 10 km deep · 36 km away
  19. 3.621 km ENE of Clayton, Idaho · 15664 days ago · 10 km deep · 29 km away
  20. 3.626 km SSE of Challis, Idaho · 15664 days ago · 10 km deep · 25 km away
  21. 3.535 km NW of Mackay, Idaho · 15664 days ago · 7 km deep · 6 km away
  22. 3.530 km E of Clayton, Idaho · 15664 days ago · 8 km deep · 15 km away
  23. 3.626 km E of Clayton, Idaho · 15663 days ago · 9 km deep · 18 km away
  24. 3.531 km ESE of Clayton, Idaho · 15662 days ago · 11 km deep · 11 km away
  25. 4.336 km ESE of Clayton, Idaho · 15661 days ago · 12 km deep · 7 km away
  26. 3.837 km NW of Mackay, Idaho · 15661 days ago · 10 km deep · 7 km away
  27. 3.527 km E of Clayton, Idaho · 15659 days ago · 7 km deep · 18 km away
  28. 3.47 km ESE of Challis, Idaho · 15659 days ago · 10 km deep · 46 km away
  29. 3.411 km W of Mackay, Idaho · 15658 days ago · 11 km deep · 27 km away
  30. 3.629 km WNW of Mackay, Idaho · 15646 days ago · 10 km deep · 6 km away
  31. 3.521 km E of Clayton, Idaho · 15637 days ago · 10 km deep · 26 km away
  32. 3.310 km ESE of Challis, Idaho · 15635 days ago · 10 km deep · 45 km away
  33. 3.540 km SE of Challis, Idaho · 15633 days ago · 10 km deep · 27 km away
  34. 3.218 km SSE of Challis, Idaho · 15632 days ago · 10 km deep · 33 km away
  35. 3.437 km NW of Mackay, Idaho · 15630 days ago · 10 km deep · 12 km away
  36. 3.819 km E of Clayton, Idaho · 15628 days ago · 10 km deep · 24 km away
  37. 4.019 km E of Clayton, Idaho · 15626 days ago · 10 km deep · 27 km away
  38. 4.513 km SE of Challis, Idaho · 15626 days ago · 10 km deep · 40 km away
  39. 3.213 km SE of Challis, Idaho · 15626 days ago · 10 km deep · 40 km away
  40. 3.218 km ESE of Clayton, Idaho · 15624 days ago · 10 km deep · 23 km away
  41. 3.626 km E of Clayton, Idaho · 15624 days ago · 10 km deep · 20 km away
  42. 4.117 km SSE of Challis, Idaho · 15623 days ago · 10 km deep · 34 km away
  43. 3.725 km E of Clayton, Idaho · 15620 days ago · 10 km deep · 19 km away
  44. 3.528 km SE of Challis, Idaho · 15618 days ago · 10 km deep · 25 km away
  45. 3.612 km SSE of Challis, Idaho · 15618 days ago · 10 km deep · 39 km away
  46. 3.127 km E of Clayton, Idaho · 15618 days ago · 10 km deep · 16 km away
  47. 3.832 km ESE of Clayton, Idaho · 15617 days ago · 10 km deep · 7 km away
  48. 3.325 km SE of Challis, Idaho · 15617 days ago · 10 km deep · 31 km away
  49. 3.635 km NW of Mackay, Idaho · 15613 days ago · 10 km deep · 8 km away
  50. 3.421 km SSE of Challis, Idaho · 15612 days ago · 10 km deep · 30 km away
  51. 4.425 km E of Clayton, Idaho · 15610 days ago · 10 km deep · 25 km away
  52. 3.625 km E of Clayton, Idaho · 15610 days ago · 10 km deep · 18 km away
  53. 4.024 km E of Clayton, Idaho · 15610 days ago · 11 km deep · 24 km away

Before

  1. 3.725 km SSE of Challis, Idaho · 15669 days ago · 10 km deep · 27 km away
  2. 3.819 km ESE of Clayton, Idaho · 15669 days ago · 10 km deep · 20 km away
  3. 5.522 km E of Clayton, Idaho · 15669 days ago · 10 km deep · 25 km away
  4. 5.423 km E of Clayton, Idaho · 15669 days ago · 9 km deep · 20 km away
  5. 3.627 km WNW of Mackay, Idaho · 15669 days ago · 10 km deep · 11 km away
  6. 3.641 km SE of Challis, Idaho · 15669 days ago · 10 km deep · 18 km away
  7. 3.929 km E of Clayton, Idaho · 15670 days ago · 10 km deep · 19 km away
  8. 3.527 km E of Clayton, Idaho · 15670 days ago · 10 km deep · 23 km away
  9. 3.626 km SE of Challis, Idaho · 15670 days ago · 10 km deep · 29 km away
  10. 4.024 km SSE of Challis, Idaho · 15670 days ago · 10 km deep · 27 km away
  11. 3.733 km ESE of Clayton, Idaho · 15670 days ago · 10 km deep · 11 km away
  12. 5.429 km NW of Mackay, Idaho · 15670 days ago · 7 km deep · 5 km away
  13. 3.623 km SSE of Challis, Idaho · 15670 days ago · 10 km deep · 28 km away
  14. 3.932 km WNW of Mackay, Idaho · 15670 days ago · 10 km deep · 9 km away
  15. 4.123 km E of Clayton, Idaho · 15670 days ago · 10 km deep · 21 km away
  16. 4.022 km E of Clayton, Idaho · 15670 days ago · 10 km deep · 21 km away
  17. 4.023 km SSE of Challis, Idaho · 15670 days ago · 10 km deep · 28 km away
  18. 3.722 km E of Clayton, Idaho · 15670 days ago · 10 km deep · 24 km away
  19. 4.331 km ESE of Clayton, Idaho · 15670 days ago · 10 km deep · 12 km away
  20. 6.9The 1983 Borah Peak Earthquake, Idaho · 15670 days ago · 10 km deep · 9 km away · felt by 3

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0001zde (also filed as ushis3828). Read Tue, Sep 22, 2026, 10:24 PM UTC.