Cheyenne -- A minor earthquake jolted the western Wyoming town of Alpine, startling people and pets. No damage was reported.

The U.S. Geological Survey says the magnitude 3.7 quake struck about 9:15 p.m. Thursday. The quake was centered in the Snake River Canyon about seven miles east of Alpine.

John Bellini with the Geological Survey in Golden, Colo., says the quake had nothing to do with the recent swarm of small earthquakes in Yellowstone National Park roughly 100 miles north of Alpine.

Another small quake measuring magnitude 3.2 happened in north-central Colorado around 7 p.m. Thursday. The quake was centered about 20 miles south-southwest of Encampment in south-central Wyoming.

Carbon County sheriff's officials say no one reported feeling that quake