Science of sinkholes: 20 percent of U.S. lies in susceptible areas

A devastating sinkhole occurred in Florida on Feb. 28, 2013, raising questions and concerns about this incredible phenomenon. Around 20 percent of the United States lies in areas susceptible to sinkhole events, highlighting the need for research and to be informed about this hazard.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/s...