A magnitude 3.8 Illinois earthquake was felt in Chicago, Wisconsin and Iowa early this morning. The earthquake was centered near Virgil , about 50 miles Northwest of Chicago. No aftershocks or injuries were reported. It was initially recorded as a 4.3, but has been downgraded to a 3.8.

According to USGS, “a magnitude 4.0 eastern U.S. earthquake typically can be felt at many places as far as 60 miles from where it occurred, and it infrequently causes damage near its source. A magnitude 5.5 eastern U.S.earthquake usually can be felt as far as 300 miles from where it occurred, and sometimes causes damage as far away as 25 miles.”