What states are the worst for sink holes?

There are some very large, ancient, 'inactive' sinkholes in some areas of the U.S. that are thousands of years old. Alabama claims to have the largest recent collapse sinkhole. It is called the “Golly Hole” and is located in Shelby County in the central part of the state. It collapsed suddenly in 1972. read more

By comparison, the profligate state of California is practically a paragon of fiscal rectitude. So based on data by State Data Lab, here are the 10 worst “Sinkhole States”: The average for all states is $6,492 per taxpayer. These sums are particularly grisly in light of the US median household income of $53,900. read more

So based on data by State Data Lab, here are the 10 worst “Sinkhole States”: The average for all states is $6,492 per taxpayer. These sums are particularly grisly in light of the US median household income of $53,900. read more

Most of Florida is on top of limestone karst terrain, and almost every state has some areas with karst terrain, Randall Orndorff of the USGS said in a video. Don't fear though, there's always sinkhole insurance. Not all sinkholes are the terrifying cover-collapse sinkholes which develop abruptly and cause catastrophic damage. read more