Idaho earthquakes

M1.6 earthquake 31 km NNE of Challis, Idaho

A magnitude 1.6 earthquake struck 31 km NNE of Challis, Idaho on Mon, Feb 25, 2019, 7:40 AM MST (14:40 UTC), 13 km (8 mi) below the surface.

A larger quake followed: M3.4 9 km NNW 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
1.6 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2019-02-25 14:40:26 UTC
Depth
12.6 km (7.8 mi), shallow
Epicenter
44.764° N, 114.068° 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 1.8 km horizontally, 3.9 km in depth
Magnitude uncertainty
±0.18
Depth from
From location
Station coverage gap
161°
Stations used
6

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 9 in the 30 days before it.

After

  1. 2.07 km N of Stanley, Idaho · 2773 days ago · 12 km deep · 87 km away
  2. 1.828 km NW of Mackay, Idaho · 2773 days ago · 22 km deep · 78 km away
  3. 1.74 km NW of Challis, Idaho · 2768 days ago · 10 km deep · 30 km away
  4. 2.18 km SE of Clayton, Idaho · 2768 days ago · 8 km deep · 67 km away
  5. 1.632 km ENE of Leadore, Idaho · 2733 days ago · 4 km deep · 86 km away
  6. 1.642 km WSW of Salmon, Idaho · 2733 days ago · 5 km deep · 42 km away
  7. 3.49 km NNW of Challis, Idaho · 2732 days ago · 5 km deep · 27 km away · felt by 10
  8. 1.88 km NNW of Challis, Idaho · 2729 days ago · 7 km deep · 28 km away
  9. 1.68 km NW of Challis, Idaho · 2724 days ago · 3 km deep · 29 km away

Before

  1. 3.243 km WSW of Salmon, Idaho · 2780 days ago · 10 km deep · 40 km away · felt by 2
  2. 1.713 km NNW of Challis, Idaho · 2788 days ago · -3 km deep · 24 km away · felt by 2
  3. 1.511 km W of Clayton, Idaho · 2788 days ago · 4 km deep · 68 km away · felt by 5
  4. 2.212 km NW of Challis, Idaho · 2788 days ago · 4 km deep · 28 km away
  5. 2.114 km NNW of Challis, Idaho · 2788 days ago · 3 km deep · 24 km away
  6. 2.614 km NW of Challis, Idaho · 2788 days ago · 5 km deep · 29 km away · felt by 1
  7. 1.67 km NW of Challis, Idaho · 2800 days ago · 10 km deep · 29 km away
  8. 1.733 km SSW of Salmon, Idaho · 2801 days ago · 11 km deep · 18 km away
  9. 1.617 km SSE of Leadore, Idaho · 2804 days ago · 0 km deep · 70 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80336579. Read Sun, Oct 4, 2026, 9:20 AM UTC.