Idaho earthquakes

M3.5 earthquake 28 km SE of Challis, Idaho

A magnitude 3.5 earthquake struck 28 km SE of Challis, Idaho on Mon, Dec 19, 1983, 4:31 AM MST (11:31 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M3.6 12 km SSE 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
3.5 (ml), minor
Local time
UTC
1983-12-19 11:31:34 UTC
Depth
10.0 km (6.2 mi), shallow
Epicenter
44.305° N, 114.008° 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: 40 in the 60 days after this one and 14 in the 30 days before it.

After

  1. 3.612 km SSE of Challis, Idaho · 15618 days ago · 10 km deep · 17 km away
  2. 3.127 km E of Clayton, Idaho · 15618 days ago · 10 km deep · 11 km away
  3. 3.832 km ESE of Clayton, Idaho · 15617 days ago · 10 km deep · 20 km away
  4. 3.325 km SE of Challis, Idaho · 15617 days ago · 10 km deep · 7 km away
  5. 3.635 km NW of Mackay, Idaho · 15612 days ago · 10 km deep · 19 km away
  6. 3.421 km SSE of Challis, Idaho · 15612 days ago · 10 km deep · 8 km away
  7. 4.425 km E of Clayton, Idaho · 15610 days ago · 10 km deep · 6 km away
  8. 3.625 km E of Clayton, Idaho · 15610 days ago · 10 km deep · 11 km away
  9. 4.024 km E of Clayton, Idaho · 15610 days ago · 11 km deep · 7 km away
  10. 3.328 km SSE of Challis, Idaho · 15609 days ago · 10 km deep · 4 km away
  11. 3.816 km SE of Challis, Idaho · 15608 days ago · 10 km deep · 13 km away
  12. 3.622 km E of Clayton, Idaho · 15606 days ago · 10 km deep · 10 km away
  13. 3.433 km E of Clayton, Idaho · 15605 days ago · 10 km deep · 5 km away
  14. 3.0southern Idaho · 15603 days ago · 10 km deep · 8 km away
  15. 3.323 km E of Clayton, Idaho · 15603 days ago · 10 km deep · 8 km away
  16. 3.213 km SSE of Challis, Idaho · 15602 days ago · 10 km deep · 16 km away
  17. 4.024 km E of Clayton, Idaho · 15596 days ago · 10 km deep · 7 km away
  18. 3.219 km E of Clayton, Idaho · 15592 days ago · 10 km deep · 13 km away
  19. 4.523 km S of Clayton, Idaho · 15582 days ago · 10 km deep · 45 km away
  20. 3.029 km NW of Challis, Idaho · 15578 days ago · 10 km deep · 58 km away
  21. 3.18 km NNW of Challis, Idaho · 15578 days ago · 10 km deep · 36 km away
  22. 3.431 km NW of Mackay, Idaho · 15577 days ago · 10 km deep · 24 km away
  23. 3.235 km NW of Challis, Idaho · 15576 days ago · 10 km deep · 64 km away
  24. 3.230 km ESE of Clayton, Idaho · 15576 days ago · 10 km deep · 11 km away
  25. 3.735 km NNW of Challis, Idaho · 15575 days ago · 10 km deep · 63 km away
  26. 3.031 km NW of Challis, Idaho · 15575 days ago · 10 km deep · 60 km away
  27. 3.429 km NW of Challis, Idaho · 15574 days ago · 10 km deep · 58 km away
  28. 3.128 km NNW of Challis, Idaho · 15574 days ago · 10 km deep · 57 km away
  29. 3.25 km NNE of Challis, Idaho · 15574 days ago · 10 km deep · 32 km away
  30. 3.428 km NW of Challis, Idaho · 15573 days ago · 10 km deep · 57 km away
  31. 3.229 km NNW of Challis, Idaho · 15573 days ago · 10 km deep · 58 km away
  32. 3.122 km E of Clayton, Idaho · 15571 days ago · 10 km deep · 10 km away
  33. 3.921 km E of Clayton, Idaho · 15571 days ago · 10 km deep · 10 km away
  34. 3.224 km SE of Clayton, Idaho · 15570 days ago · 10 km deep · 28 km away
  35. 3.14 km NW of Challis, Idaho · 15569 days ago · 10 km deep · 33 km away
  36. 3.210 km SE of Challis, Idaho · 15568 days ago · 10 km deep · 18 km away
  37. 3.027 km NW of Challis, Idaho · 15567 days ago · 10 km deep · 56 km away
  38. 3.49 km SSE of Challis, Idaho · 15567 days ago · 10 km deep · 19 km away
  39. 3.121 km SSE of Challis, Idaho · 15565 days ago · 10 km deep · 8 km away
  40. 3.229 km SE of Challis, Idaho · 15560 days ago · 10 km deep · 1 km away

Before

  1. 3.725 km E of Clayton, Idaho · 15620 days ago · 10 km deep · 10 km away
  2. 4.117 km SSE of Challis, Idaho · 15623 days ago · 10 km deep · 12 km away
  3. 3.626 km E of Clayton, Idaho · 15624 days ago · 10 km deep · 9 km away
  4. 3.218 km ESE of Clayton, Idaho · 15624 days ago · 10 km deep · 16 km away
  5. 3.213 km SE of Challis, Idaho · 15626 days ago · 10 km deep · 16 km away
  6. 4.513 km SE of Challis, Idaho · 15626 days ago · 10 km deep · 16 km away
  7. 4.019 km E of Clayton, Idaho · 15626 days ago · 10 km deep · 12 km away
  8. 3.819 km E of Clayton, Idaho · 15628 days ago · 10 km deep · 13 km away
  9. 3.437 km NW of Mackay, Idaho · 15630 days ago · 10 km deep · 16 km away
  10. 3.218 km SSE of Challis, Idaho · 15632 days ago · 10 km deep · 11 km away
  11. 3.540 km SE of Challis, Idaho · 15633 days ago · 10 km deep · 15 km away
  12. 3.310 km ESE of Challis, Idaho · 15635 days ago · 10 km deep · 21 km away
  13. 3.521 km E of Clayton, Idaho · 15637 days ago · 10 km deep · 10 km away
  14. 3.629 km WNW of Mackay, Idaho · 15646 days ago · 10 km deep · 31 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp00020mp. Read Tue, Sep 22, 2026, 8:46 PM UTC.