A minor earthquake occurred at 6:20 a.m. Tuesday near Williamsburg, according to the University of Kentucky's Kentucky Geological Survey Web site.

The magnitude 3.1 earthquake centered 16 miles underground. According to the U.S. Geological Survey, earthquakes classified as minor occur between the magnitude of 3 and 3.9 on the Richter scale.

A 911 dispatcher in Williamsburg said no damage or injuries had been reported by Wednesday.

"It shook the house for about five seconds or so," said Jimmy Perkins, who lives in Williamsburg.

Earlier this month, Gov. Steve Beshear's office announced a statewide earthquake drill for Kentucky school students. The drill will be at 10:07 a.m. Tuesday in observance of Earthquake Awareness Week.

"Earthquakes are unpredictable," Lori King, the Kentucky Division of Emergency Management's Earthquake Program Coordinator, said in a release. "At best, scientists make predictions based upon historical activity, but with so much uncertainty, the possibility of a major earthquake affecting Kentucky cannot be taken for granted."

At least three other minor earthquakes have occurred in Kentucky since 2005, according to the U.S. Geological Survey.

In April, an earthquake that registered 5.2 on the Richter scale was centered in Illinois and was felt in Kentucky.