Idaho earthquakes

M2.3 earthquake 12 km NNW of Challis, Idaho

A magnitude 2.3 earthquake struck 12 km NNW of Challis, Idaho on Sun, Jul 28, 2019, 5:24 PM MDT (23:24 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.2 19 km NNE 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
2.3 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2019-07-28 23:24:27 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
44.598° N, 114.308° 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 0.5 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
72°
Stations used
12

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 6 in the 30 days before it.

After

  1. 2.421 km N of Stanley, Idaho · 2624 days ago · 3 km deep · 57 km away
  2. 2.420 km N of Stanley, Idaho · 2624 days ago · 4 km deep · 57 km away
  3. 1.920 km N of Stanley, Idaho · 2623 days ago · 4 km deep · 57 km away
  4. 1.821 km N of Stanley, Idaho · 2623 days ago · 5 km deep · 57 km away
  5. 1.920 km N of Stanley, Idaho · 2623 days ago · 4 km deep · 57 km away
  6. 2.219 km N of Stanley, Idaho · 2623 days ago · 4 km deep · 57 km away
  7. 1.620 km N of Stanley, Idaho · 2623 days ago · 2 km deep · 57 km away
  8. 3.219 km NNE of Challis, Idaho · 2613 days ago · 10 km deep · 15 km away · felt by 5
  9. 1.515 km NE of Challis, Idaho · 2613 days ago · 1 km deep · 18 km away
  10. 1.917 km NNE of Challis, Idaho · 2612 days ago · 7 km deep · 15 km away
  11. 1.720 km NW of Challis, Idaho · 2612 days ago · 4 km deep · 11 km away
  12. 1.620 km WSW of Salmon, Idaho · 2609 days ago · 3 km deep · 60 km away
  13. 1.912 km NW of Challis, Idaho · 2608 days ago · 5 km deep · 2 km away
  14. 2.317 km NNE of Challis, Idaho · 2608 days ago · 5 km deep · 13 km away
  15. 1.535 km NW of Mackay, Idaho · 2607 days ago · 7 km deep · 59 km away · felt by 1
  16. 1.825 km SSW of Clayton, Idaho · 2602 days ago · 10 km deep · 64 km away
  17. 1.916 km NNE of Challis, Idaho · 2596 days ago · 10 km deep · 15 km away
  18. 1.611 km WSW of Challis, Idaho · 2594 days ago · 10 km deep · 14 km away
  19. 2.110 km SE of Challis, Idaho · 2590 days ago · 10 km deep · 22 km away
  20. 2.612 km SE of Challis, Idaho · 2590 days ago · 10 km deep · 25 km away · felt by 2
  21. 1.67 km NW of Challis, Idaho · 2588 days ago · 10 km deep · 4 km away
  22. 2.813 km SSE of Clayton, Idaho · 2570 days ago · 10 km deep · 50 km away · felt by 1
  23. 2.417 km SSE of Clayton, Idaho · 2570 days ago · 10 km deep · 54 km away
  24. 1.916 km SE of Challis, Idaho · 2569 days ago · 7 km deep · 28 km away
  25. 2.114 km SE of Challis, Idaho · 2568 days ago · 7 km deep · 26 km away

Before

  1. 2.513 km NW of Challis, Idaho · 2633 days ago · 5 km deep · 2 km away
  2. 1.85 km NNW of Challis, Idaho · 2633 days ago · 10 km deep · 7 km away
  3. 1.69 km NNW of Challis, Idaho · 2652 days ago · 8 km deep · 3 km away
  4. 2.514 km NNW of Challis, Idaho · 2652 days ago · 6 km deep · 3 km away · felt by 2
  5. 1.99 km NNW of Challis, Idaho · 2652 days ago · 9 km deep · 3 km away
  6. 1.530 km ESE of Salmon, Idaho · 2653 days ago · 4 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80354879. Read Sun, Oct 4, 2026, 4:31 PM UTC.