Hi folks,
There have been earthquakes in the general area you all are discussing long before the drilling started. There is a small active fault in that vicinity that caused a rash of small quakes back in the early 80's, I believe, but the drilling has exacerbated the issue there. I mean think about it, if you take enough gas out that is under great pressure and replace it with something that is completely different than what was there, you will get movement. Plus if you happen to be doing this in the neighborhood of an existing active fault.....there ya go.