I'm sure it has nothing to do with all the fault lines in Oklahoma, http://yournewswire.com/300-million-year-old-fault-lines-across-oklahoma-are-being-reawakened/
If your not aware of history, in the neighboring state, in the early 1800's an earthquake 8.0 occurred at the Madrid fault line. If anyone has ever driven thru Oklahoma, I'm sure they noticed the R-buckles, a major previously dormant fault line, that has delivered large earthquakes millions of millions of years ago. Course I'm sure none of this has anything to do with any of that, and has everything to do with that evil oil and gas!