M1.6 earthquake 15 km NE of Dillon, Montana

A magnitude 1.6 earthquake struck 15 km NE of Dillon, Montana on Sun, Mar 8, 2015, 2:50 PM MDT (20:50 UTC), 8 km (5 mi) below the surface.

Automatic solution: the magnitude and location may still be revised.

A larger quake followed: M2.5 18 km NE of Leadore, Idaho. This one was a foreshock.

Map

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

No one has reported feeling this quake to the USGS.

An automatic solution; a seismologist may revise it.

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

Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 7 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event mb15254338. Read Sat, Oct 3, 2026, 5:50 PM UTC.