A 4.2-magnitude earthquake that originated just northeast of Great Falls was felt across central Montana Thursday afternoon, although authorities said there were no early reports of damage. The U.S. Geological Survey reported that the earthquake originated about six miles underground just before 1 p.m. Great Falls City Commissioner Shannon Wilson said she was at the Celtic Cowboy, a downtown restaurant, when the earthquake hit. A statement from Malmstrom Air Force Base said that the earthquake caused no damage to facilities on base or across the missile field. As many as five earthquakes hit Montana annually, though most are too small to feel.