Idaho earthquakes

M1.9 earthquake 19 km NE of Challis, Idaho

A magnitude 1.9 earthquake struck 19 km NE of Challis, Idaho on Sun, Apr 3, 2016, 4:32 AM MDT (10:32 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M2.6 38 km NNW of Stanley, 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
1.9 (ml), micro
Local time
UTC
2016-04-03 10:32:33 UTC
Depth
7.4 km (4.6 mi), shallow
Epicenter
44.629° N, 114.064° 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 0.6 km horizontally, 2.1 km in depth
Magnitude uncertainty
±0.23
Depth from
From location
Station coverage gap
68°
Stations used
14

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.514 km NE of Challis, Idaho · 3814 days ago · 6 km deep · 5 km away
  2. 1.64 km NW of Challis, Idaho · 3810 days ago · 7 km deep · 20 km away
  3. 1.640 km NNW of Stanley, Idaho · 3805 days ago · 9 km deep · 79 km away
  4. 2.638 km NNW of Stanley, Idaho · 3805 days ago · 4 km deep · 79 km away
  5. 2.2southern Idaho · 3782 days ago · 8 km deep · 18 km away
  6. 2.16 km N of Stanley, Idaho · 3776 days ago · 12 km deep · 80 km away
  7. 1.614 km SW of Clayton, Idaho · 3771 days ago · 6 km deep · 63 km away

Before

  1. 1.722 km WNW of Challis, Idaho · 3837 days ago · 6 km deep · 37 km away
  2. 1.629 km E of Clayton, Idaho · 3837 days ago · 5 km deep · 45 km away
  3. 1.510 km SE of Challis, Idaho · 3840 days ago · 5 km deep · 22 km away
  4. 1.639 km NNE of Leadore, Idaho · 3844 days ago · 5 km deep · 84 km away
  5. 1.622 km WNW of Challis, Idaho · 3844 days ago · 5 km deep · 36 km away
  6. 1.917 km NNE of Challis, Idaho · 3846 days ago · 5 km deep · 4 km away · felt by 1
  7. 1.622 km WNW of Challis, Idaho · 3848 days ago · 3 km deep · 36 km away
  8. 2.2southern Idaho · 3850 days ago · 9 km deep · 5 km away
  9. 1.525 km SE of Challis, Idaho · 3851 days ago · 5 km deep · 31 km away
  10. 1.8southern Idaho · 3851 days ago · 7 km deep · 19 km away
  11. 2.614 km NE of Challis, Idaho · 3851 days ago · 10 km deep · 5 km away
  12. 1.822 km W of Challis, Idaho · 3856 days ago · 4 km deep · 37 km away
  13. 1.714 km NE of Challis, Idaho · 3859 days ago · 5 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80132264. Read Mon, Sep 28, 2026, 1:02 AM UTC.