Ohio Earthquake

A recent article on CNN's website talked about earthquakes in Mentor, Ohio. The city has been subject to earthquakes on average every two weeks since January. A look at the Ohio Seismic Network showed a 3.8 magnitude earthquake June 20th in Lake Erie. An aftershock of magnitude 2.1 occured on the 1st of July. (Source) Quite interesting since you really don't consider the area to be seismically active (at least not to the extent of states such as California).

The strongest earthquake to hit Ohio occured in March 9th, 1937 and had a magnitude of 5.4 (Source)