M4.1 earthquake 8 km NNW of Georgetown, Idaho

A magnitude 4.1 earthquake struck 8 km NNW of Georgetown, Idaho on Tue, Oct 10, 2017, 7:24 PM MDT (01:24 UTC), 10 km (6 mi) below the surface.

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
4.1	Mwr, regional moment	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.032 · 91 stations
4.44	ML, local (Richter)	University of Utah Seismograph Stations	Final · ±0.121 · 25 stations

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

75 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.

The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: 165 in the 60 days after this one and at least 200 in the 30 days before it.

The first 60 of 165.

From the USGS Earthquake Hazards Program and its partner networks, event us1000aq0r (also filed as uu60252092). Read Sat, Oct 3, 2026, 4:22 AM UTC.