A magnitude-5.2 earthquake, centered 131 miles east of St. Louis, Missouri, shook southern Illinois early Friday, according to the U.S. Geological Survey.
There were few reports of damage immediately after the predawn quake, which struck at 4:36 a.m. (5:36 a.m. ET), but CNN affiliate WHAS-TV in Louisville, Kentucky, showed footage of rubble left in a street after a cornice fell off a brick building there.
The epicenter of the earthquake was about three miles below ground, six miles northwest of Mount Carmel, Illinois, and 38 miles north-northwest of Evansville, Indiana, according to the USGS.
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People as far north as southern Michigan and as far west as Des Moines, Iowa, reported feeling the quake, according to The Associated Press.
Air traffic was halted for an hour at Indianapolis International Airport while the control tower was evacuated, CNN affiliate WRTV-TV in the Indiana city reported.
At least 30 people reported feeling the quake in Clarksville, Tennessee -- 227 miles south of the epicenter -- according to the USGS Web site.
Buildings swayed in Chicago's Loop and people were shaken awake in Milwaukee, Wisconsin, the AP reported.
People as far away as southwest Michigan and northeast Georgia e-mailed CNN to say they felt the tremor.
"It shook our house where it woke me up," David Behm of Philo, Illinois, told the AP. "Windows were rattling, and you could hear it. The house was shaking inches. For people in central Illinois, this is a big deal. It's not like California."
Radio talk-show host George Noory said he felt the quake in his St. Louis home.
"Everything shook," Noory said. "I thought the building was going to collapse."
Bonnie Lucas, who hosts a morning show at WHO-AM in Des Moines, told the AP she felt her chair move for five seconds.
The USGS said the largest historical earthquake in the region -- magnitude 5.4 -- shook southern Illinois in 1968.