This 2005 event is the costliest natural disaster in U.S. history
.... 2005, Tropical cyclone, 120, 
$12,000,000,000 [DOC] [TLE] Top 10 Most Expensive Disasters in U.S. History - Trusted Choice [PAR] Dec 17, 2013 ... Hurricane Katrina was one of the most expensive disasters in U.S. history.