By Joshua Doubek - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=27166623
Oct. 16, 2015
In 2008, there were two earthquakes in Oklahoma registering 3.0 or greater magnitude on the Richter scale. So far, in 2015, there have been about 700, and the U.S. Geological Survey is projecting a total of 941 for the year. According to state agencies, that’s around 600 times the historical average.