The U.S. Geological Survey said a moderate magnitude 5.3 earthquake has rumbled through southeast Idaho.
There were no immediate reports of damage or injuries.
The epicenter of the quake was located 11 miles east of Soda Springs, Idaho, and was also felt in Wyoming, and across northern Utah in Logan, Ogden, Salt Lake City, Draper and Provo.
The USGS reported four separate quakes the evening of Sept 2 in an area about 63 miles from Pocatello and 130 miles from Salt Lake City.
The largest quake at magnitude 5.3 struck just before 6 p.m. local time. The USGS said a handful of smaller quakes followed for about an hour.
The agency said only slight damage occurs with earthquakes at that level of intensity.