M2.7 earthquake 8 km NNW of Stanley, Idaho

A magnitude 2.7 earthquake struck 8 km NNW of Stanley, Idaho on Fri, Jul 13, 2018, 9:51 PM MDT (03:51 UTC), 5 km (3 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
2.7	ML, local (Richter)	USGS National Earthquake Information Center	Preferred · Reviewed · ±0.071 · 26 stations
2.72	ML, local (Richter)	Montana Bureau of Mines and Geology	Final · ±0.203 · 10 stations

The USGS’s account of the effects of this earthquake.

Two events about 17 seconds apart.

From the USGS event page for us2000g4uc. U.S. Geological Survey text and figures are in the public domain.

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: 17 in the 60 days after this one and 27 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event us2000g4uc (also filed as mb80301939). Read Sun, Oct 4, 2026, 4:01 PM UTC.