MOUNT CARMEL, IL (KTVI) - A 3.6 magnitude earthquake was recorded by the U.S. Geological Survey. They report the quake centered ten miles west northwest of Mount Carmel, IL at 5:30pm.
So far there have been no reports of damage or injury.
The earthquake occurred in what is known by seismologists as the, "The Illinois basin". It is a zone that stretches from St. Louis to Indianapolis and down to Memphis. This region borders the more active New Madrid seismic zone. The largest recorded earthquake that occurred in the Illinois Basin was a 5.4 in 1968.
According to the USGS, "geologists have found evidence of eight or more prehistoric earthquakes over the last 25,000 years that were much larger than any observed historically in the region."
More info: USGS.gov