Montana earthquakes

M1.6 earthquake 41 km SW of Dillon, Montana

A magnitude 1.6 earthquake struck 41 km SW of Dillon, Montana on Thu, Jan 5, 2017, 6:46 AM MST (13:46 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.3 41 km SW of Dillon, Montana. This one was a foreshock.

Dillon forecastMore in Montana

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), micro
Local time
UTC
2017-01-05 13:46:12 UTC
Depth
5.3 km (3.3 mi), shallow
Epicenter
44.959° N, 113.011° W
Region
Montana
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, 4.0 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
161°
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 13 in the 60 days after this one and 2 in the 30 days before it.

After

  1. 2.038 km W of Dillon, Montana · 3550 days ago · 3 km deep · 32 km away
  2. 3.115 km NNE of Dillon, Montana · 3547 days ago · 9 km deep · 56 km away · felt by 8
  3. 1.67 km SW of Leadore, Idaho · 3542 days ago · 6 km deep · 49 km away
  4. 3.341 km SW of Dillon, Montana · 3538 days ago · 1 km deep · 3 km away · felt by 4
  5. 1.940 km NE of Leadore, Idaho · 3537 days ago · 5 km deep · 3 km away · felt by 1
  6. 1.826 km SW of Dillon, Montana · 3536 days ago · 3 km deep · 15 km away
  7. 2.143 km NE of Spencer, Idaho · 3533 days ago · 14 km deep · 94 km away
  8. 2.429 km ENE of Leadore, Idaho · 3525 days ago · 4 km deep · 19 km away
  9. 3.129 km ENE of Leadore, Idaho · 3524 days ago · 3 km deep · 18 km away · felt by 2
  10. 1.710 km NNW of Dillon, Montana · 3518 days ago · 4 km deep · 46 km away
  11. 1.710 km NNW of Dillon, Montana · 3515 days ago · 4 km deep · 47 km away
  12. 1.727 km W of Leadore, Idaho · 3515 days ago · 4 km deep · 63 km away
  13. 1.631 km ENE of Leadore, Idaho · 3507 days ago · 0 km deep · 14 km away

Before

  1. 1.68 km WNW of Twin Bridges, Montana · 3558 days ago · 5 km deep · 83 km away
  2. 1.617 km NNE of Dillon, Montana · 3584 days ago · 6 km deep · 56 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80195854. Read Wed, Sep 30, 2026, 9:34 PM UTC.