Montana earthquakes

M2.7 earthquake 31 km SSW of Dillon, Montana

A magnitude 2.7 earthquake struck 31 km SSW of Dillon, Montana on Sat, Jun 21, 1986, 8:02 PM MDT (02:02 UTC), 5 km (3 mi) below the surface.

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The earthquake

Magnitude
2.7 (ML, local (Richter)), micro
Magnitude from
USGS National Earthquake Information Center
Local time
UTC
1986-06-22 02:02:47 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
44.950° N, 112.784° 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.

Depth from
OPERATOR_ASSIGNED

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 1 in the 30 days before it.

Before

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp0002v9j. Read Sun, Oct 4, 2026, 4:15 PM UTC.