So your going to take the word of the "scientists" that are on the payrole of the oil/gas companys, when they say that the oil/gas co didn't do it. As for the earthquakes in DFW, we sit on a major stress fault in the middle of the plate, that has been inactive for as long as people have live here. We've only had them sence they started fracking in this area. How fracking affects it is this.. high presser going in. Changes the balance, then the pressure is reliced up setting it further causing the ground to settle and "quake". Same prenciple as when a house foundation settles and cracks. Now go do your own reserch, I don't get paid to educate people.