“Torn to pieces.” That's how the American frontiersman Davy Crockett, described the West Tennessee landscape. Nearly 15 years after it was rent asunder by the New Madrid earthquakes from December 1811 to February 1812. The tremors rocked an area that also included the present-day states of Missouri, Arkansas, Kentucky and Illinois, reshaping not only the landscape but also the lives of the people who settled there.

So why were the quakes all but forgotten by the time of the Civil War? What caused them and could they happen again? 

Joining us to discuss this long-overlooked disaster in this Earth Month episode of Colloquy is Dr. Conevery Valencius, author of the recent book The Lost History of the New Madrid Earthquakes. Dr. Valencius is a professor of history at Boston College and has taught at Washington University, Saint Louis, Harvard, and the University of Massachusetts, Boston. She's been a fellow at the Radcliffe Institute for Advanced Study, the National Endowment for the Humanities, and the Debonair Institute for the History of Science and Technology. Dr. Valencius is currently working on a book about earthquakes and the modern energy sector. She received a Ph.D. in the History of Science from GCIS in 1998.