The earth moved about three miles underground this morning about halfway between Sullivan and Potosi. The United States Geological Service rated it as “light” at 4.2, a quake that can be felt in a wide area but not strong enough to cause damage. Later evaluations lowered the quake severity to 3.9. Earthquake program manager Steve Besemer with the State Emergency Management Agency says aftershock are sometimes likely after an earthquake of this magnitude. But he says none has been reported.
The rumble happened about 3:10 a.m. One woman emailed Missourinet affiliate KTUI in Sullivan saying it felt like five seconds of thunder right above her house that shook the windows but caused no damage. Sullivan police have reported the shake was enough to wake up the entire town.
No injuries have been reported.
The USGS says it received scattered reports of the quake being felt as far away as Mobile, Alabama–about 866 km away–as well as New Albany Ohio (736 km from the epicenter), Middleton, Wisconsin (567 km), and Wichita, Kanss (562 km), as well as in various parts of Missouri.