In November of 2011, a magnitude 5.7 earthquake ripped through the small Oklahoma town of Prague, damaging more than a dozen homes and toppling a turret on a St. Gregory's University building in nearby Shawnee.
In November of 2011, a magnitude 5.7 earthquake ripped through the small Oklahoma town of Prague, damaging more than a dozen homes and toppling a turret on a St. Gregory's University building in nearby Shawnee.
It was the worst of three large quakes to strike the area over several days, and it still as ranks as the worst Oklahoma has ever experienced.
Since then, hundreds more have rattled the state, racking up millions of dollars in damages and unleashing a political and financial maelstrom.
Until 2008, Oklahoma typically had one or two earthquakes of magnitude 3.0 or greater per year, according to the U.S. Geological Survey; since the start of 2015, the state has averaged 2 of this strength or greater per day.