Montana earthquakes

M1.5 earthquake 6 km W of Dillon, Montana

A magnitude 1.5 earthquake struck 6 km W of Dillon, Montana on Tue, Aug 30, 2016, 12:47 AM MDT (06:47 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.0 16 km S of Whitehall, 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
1.5 (ml), micro
Local time
UTC
2016-08-30 06:47:44 UTC
Depth
3.6 km (2.3 mi), shallow
Epicenter
45.212° N, 112.725° 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 1.5 km horizontally, 8.5 km in depth
Magnitude uncertainty
±0.07
Depth from
Operator assigned
Station coverage gap
174°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 6 in the 30 days before it.

After

  1. 4.016 km S of Whitehall, Montana · 3679 days ago · 8 km deep · 74 km away · felt by 21
  2. 2.216 km S of Whitehall, Montana · 3678 days ago · 7 km deep · 73 km away
  3. 3.316 km S of Whitehall, Montana · 3677 days ago · 8 km deep · 74 km away · felt by 6
  4. 2.917 km S of Whitehall, Montana · 3677 days ago · 8 km deep · 73 km away
  5. 1.717 km S of Whitehall, Montana · 3677 days ago · 2 km deep · 73 km away
  6. 1.717 km S of Whitehall, Montana · 3677 days ago · 4 km deep · 73 km away
  7. 1.516 km SSW of Alder, Montana · 3675 days ago · 9 km deep · 44 km away
  8. 1.616 km S of Whitehall, Montana · 3674 days ago · 5 km deep · 74 km away
  9. 3.316 km S of Whitehall, Montana · 3672 days ago · 7 km deep · 74 km away · felt by 2
  10. 1.916 km S of Whitehall, Montana · 3668 days ago · 4 km deep · 73 km away
  11. 2.317 km S of Whitehall, Montana · 3667 days ago · 3 km deep · 73 km away
  12. 1.611 km N of Spencer, Idaho · 3667 days ago · 2 km deep · 94 km away
  13. 2.029 km SSE of Virginia City, Montana · 3666 days ago · 8 km deep · 71 km away
  14. 1.517 km S of Whitehall, Montana · 3665 days ago · 4 km deep · 72 km away
  15. 2.717 km S of Whitehall, Montana · 3656 days ago · 6 km deep · 73 km away
  16. 2.217 km S of Whitehall, Montana · 3656 days ago · 4 km deep · 72 km away
  17. 1.517 km S of Whitehall, Montana · 3656 days ago · 5 km deep · 73 km away
  18. 2.346 km NW of Island Park, Idaho · 3654 days ago · 9 km deep · 92 km away
  19. 1.628 km N of Lima, Montana · 3644 days ago · 8 km deep · 39 km away
  20. 1.9Idaho-Montana border region · 3639 days ago · 4 km deep · 76 km away
  21. 1.6Idaho-Montana border region · 3638 days ago · 1 km deep · 75 km away
  22. 2.141 km NE of Spencer, Idaho · 3628 days ago · 9 km deep · 91 km away
  23. 1.622 km ESE of Leadore, Idaho · 3627 days ago · 5 km deep · 70 km away

Before

  1. 1.618 km S of Whitehall, Montana · 3686 days ago · 5 km deep · 73 km away
  2. 1.913 km N of Dillon, Montana · 3690 days ago · 6 km deep · 16 km away
  3. 1.715 km SSE of Pony, Montana · 3690 days ago · 2 km deep · 78 km away
  4. 2.617 km S of Whitehall, Montana · 3698 days ago · 1 km deep · 73 km away
  5. 1.616 km S of Whitehall, Montana · 3702 days ago · 4 km deep · 74 km away
  6. 3.217 km S of Whitehall, Montana · 3702 days ago · 9 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event mb80167339. Read Wed, Sep 30, 2026, 8:08 PM UTC.