(CNN) — An early morning earthquake rattled northern Illinois on Wednesday, shaking an area about 50 miles west-northwest of downtown Chicago, the U.S. Geological Survey said.
The magnitude 4.3 quake hit just before 4 a.m. CT (5 a.m. ET), with an epicenter about 3 miles underground. The USGS pinpointed the quake between the towns of Virgil and Sycamore.
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http://www.cnn.com/2010/US/02/10/illinois.earthquake/index.html?hpt=T2
