Idaho earthquakes

M2.4 earthquake 20 km SE of Challis, Idaho

A magnitude 2.4 earthquake struck 20 km SE of Challis, Idaho on Sat, Dec 15, 2018, 1:29 AM MST (08:29 UTC), 5 km (3 mi) below the surface.

Challis forecastMore in Idaho

Map

Where this earthquake was located, with the others nearby. Select one for its page.

Open the live map with earthquakes

The earthquake

Magnitude
2.4 (ML, local (Richter)), micro
Magnitude from
Montana Bureau of Mines and Geology
Local time
UTC
2018-12-15 08:29:22 UTC
Depth
5.5 km (3.4 mi), shallow
Epicenter
44.369° N, 114.058° 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, 0.5 km in depth
Magnitude uncertainty
±0.28
Depth from
From location
Station coverage gap
96°
Stations used
11

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 11 in the 30 days before it.

After

  1. 1.815 km SSE of Clayton, Idaho · 2833 days ago · 6 km deep · 33 km away
  2. 1.7southern Idaho · 2832 days ago · 2 km deep · 33 km away
  3. 1.611 km W of Clayton, Idaho · 2812 days ago · 6 km deep · 41 km away
  4. 1.617 km SSE of Leadore, Idaho · 2804 days ago · 0 km deep · 68 km away
  5. 1.733 km SSW of Salmon, Idaho · 2800 days ago · 11 km deep · 61 km away
  6. 1.67 km NW of Challis, Idaho · 2799 days ago · 10 km deep · 28 km away
  7. 1.852 km SSW of Lima, Montana · 2799 days ago · 10 km deep · 93 km away

Before

  1. 1.523 km SSE of Leadore, Idaho · 2852 days ago · 8 km deep · 69 km away · felt by 1
  2. 1.624 km E of Clayton, Idaho · 2853 days ago · 6 km deep · 13 km away
  3. 2.111 km NW of Challis, Idaho · 2855 days ago · 6 km deep · 32 km away
  4. 1.619 km NW of Clayton, Idaho · 2856 days ago · 3 km deep · 41 km away
  5. 2.59 km SSE of Clayton, Idaho · 2859 days ago · 5 km deep · 32 km away · felt by 1
  6. 2.88 km ESE of Challis, Idaho · 2869 days ago · 5 km deep · 12 km away · felt by 3
  7. 1.626 km ENE of Leadore, Idaho · 2874 days ago · 4 km deep · 92 km away
  8. 1.69 km NNW of Stanley, Idaho · 2875 days ago · 4 km deep · 72 km away
  9. 3.115 km NNW of Stanley, Idaho · 2875 days ago · 5 km deep · 74 km away · felt by 1
  10. 1.69 km NNW of Stanley, Idaho · 2875 days ago · 4 km deep · 72 km away
  11. 2.125 km SSW of Clayton, Idaho · 2876 days ago · 5 km deep · 51 km away

Earthquakes todayIdaho earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80328549. Read Sat, Oct 3, 2026, 8:48 PM UTC.