"Record-Breaking Earthquake Shakes Northern Illinois, Strongest in Six Years"

A 3.6-magnitude earthquake occurred in northern Illinois, making it the strongest earthquake the state has seen in six years. The quake occurred near Standard and was felt in the surrounding area. While most earthquakes in Illinois occur in the southern half of the state near the New Madrid fault line, there are fault systems in northern Illinois as well. The strongest earthquake ever recorded in Illinois was a 5.3-magnitude quake near Norris City in 1968.