M2.1 earthquake 19 km E of Lima, Montana

A magnitude 2.1 earthquake struck 19 km E of Lima, Montana on Sat, Sep 12, 2015, 9:07 AM MDT (15:07 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.3 7 km E of Hebgen Lake Estates, Montana. 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.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 8 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event mb80097609. Read Tue, Sep 22, 2026, 10:24 PM UTC.