I DON'T think anything is going to happen with that situation. Much ado about nothing. Let's see, I have heard folks prophecy that there would be a giant methane explosion that would destroy K's of sq. miles, the area would eventually cause the Earth to be so jacked up that it would trigger eq's and set off the New Madrid, Yellowstone, etc ad nauseum...I will tell you what, there are THOUSANDS of other sinkholes worldwide. No joke, look them up, there is actually great scientific documentaries on Nat Geo and other reputable sources on the net. Nowhere ever, has a sinkhole caused any of the above mentioned calamities and predictions...correct me if I am wrong.