I'm surprised there is even any surface water left! Give it 50 years if will be a nice dry area, everyone will forget and some seedy developer will build a subdivision on it! Then after a heavy rain homes will just start disappearing! Ha !
Nature didn't cause that. We did. It was a salt mine dome beneath that collapsed and caused this sinkhole. There are other similar instances of salt mine domes collapsing or being accidentally drilled into by oil companies that have caused large sinkholes and other eco-disasters.