M2.8 earthquake 15 km N of Georgetown, Idaho

A magnitude 2.8 earthquake struck 15 km N of Georgetown, Idaho on Sat, Sep 2, 2017, 8:11 PM MDT (02:11 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M5.0 9 km NNW of Georgetown, Idaho. This one was a foreshock.

Map

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

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
2.8	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.043 · 72 stations
2.45	ML, local (Richter)	University of Utah Seismograph Stations	Final · ±0.164 · 10 stations

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: at least 202 in the 60 days after this one and 68 in the 30 days before it.

The first 60 of at least 202.

From the USGS Earthquake Hazards Program and its partner networks, event us2000aep2 (also filed as uu60229402). Read Fri, Oct 2, 2026, 6:54 AM UTC.