A small earthquake was felt in southwestern Colorado and southeastern Utah.
The U.S. Geological survey says the magnitude 3.9 quake struck at 9:46 p.m. MST Wednesday and was centered in Colorado, about 55 miles southwest of Grand Junction and 55 miles southeast of Moab, Utah.
University of Utah Seismologist Jim Pechmann says the temblor was chiefly felt by people in Grand Junction, Colo., as well as in some towns in Utah.
There were no immediate reports of damage.
Pechmann says the area was hit by quakes measures magnitude 4.4 in 2000 and 4.1 in 2004.