When the earth opens up: Why it's 'sinkhole season' in Florida

News reports, and videos posted on YouTube, reveal that while falling ground is uncommon, it does happen in the United States and around the world.

Think sinkholes like the one that opened up under a Florida home last week -- and swallowed a man into the earth -- are just freak accidents that could never happen to you? Think again. About 35 to 40 percent of the entire United States is susceptible

SEFFNER, Fla. -- Authorities hope to get a better look at a sinkhole that swallowed a man in his Florida home once demolition crews knock down the remaining walls of the house Monday and begin clearing away the debris.

Think sinkholes like the one that opened up under a Florida home last week -- and swallowed a man into the earth -- are just freak accidents that could never happen to you? Think again. About 35 to 40 percent of the entire United States is susceptible

The Florida sinkhole could happen in many spots in the U.S. Are you covered for the damage?