When a Florida man vanished into a massive sinkhole that opened underneath his home in February, the case garnered national attention. Sinkholes were put in the spotlight. Geologists say that sinkholes have been occurring on a daily basis for years without much notice.
Source: http://www.npr.org/2013/03/21/174958970/the-science-of-sinkholes?ft=1&f=1007
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