Indiana earthquake felt in five states

December 30, 2010

Emily Wilensky

No damage or injuries have been reported from an earthquake that hit north of Indianapolis this morning.

According to the U.S Geological Survey, the 3.8 magnitude quake was felt in parts of Indiana, Michigan, Ohio, Kentucky, Wisconsin and Illinois. Seth Stein is a professor of Earth Science at Northwestern University. He said the far reach of today's quake is typical for this region.

“In the Midwest the rocks are old and cold,” Stein said. “And they transmit seismic energy pretty well, as opposed to the warmer softer rock of the west.”
 
Stein said earthquakes of this magnitude occur fairly often throughout Indiana and Southern Illinois, though he said today's quake hit along a fault that's farther north of the Wabash Valley fault where most of Indiana's seismic activity occurs.