No, that wasn’t your alarm clock that violently woke you this morning, that was a 3.8 magnitude Earth quake, the strongest to hit Southern Illinois in half a decade.

The quake which struck in Albion, near the Indiana border was recorded just prior to 7 this morning. According to the United States Geological Survey Earth Quakes of this magnitude generally don’t cause damage but are big enough for people to feel.

According to the Missouri Department of Natural Resources Southern Illinois is the most active seismic area in the country east of the Rocky Mountains due to the Madrid Seismic Zone. Being in that seismic zone would explain the plethora of Earthquakes the area experiences. The most recent quake of magnitude was in 2012 registering a 3.9, the largest Southern Illinois has ever experienced was in 1968 with a 5.4 magnitude quake.

The quake earlier today is in fact the largest since April 2008 when a 4.0 earthquake rocked an area about 6 miles north of Mount Carmel

You can find an interactive map on the USGS website that will allows users to see the areas which were impacted by this morning’s quake.

*UPDATED: 12:19: Changed “Nearly a decade” to “Half a decade”.