posted on Jun, 1 2010 @ 09:58 PM
the current (2010) hole is approx. 100 ft deep and 60 ft across.
i got that from one of the news articles i saw earlier today - i forget which one.
it swallowed a three-story building and i think a house, too
for sure the building, though
there was a very similar one in 2007 that didn't happen during a storm - although this 2010 sinkhole had been making noise since 2005.
the 2007 hole was 330 ft deep, as mentioned earlier in this thread
think about the cenotes
in the jungles down there - they were a big part of
Meso-American culture - and the Big Blue Hole
is just off the coast of Belize.
for whatever reason, the limestone seems to form in columns, the same in whose absence these sinkholes come into existence. it isn't necessarily
because of bad drainage but bad drainage does make it more likely or perhaps just sooner rather than later.
supposedly it was water from the last melting ice age seeping into these limestone formations, 11,000 -13,000 years ago, that is the root cause of
these kinds of sinkholes.
these round, deep, and circular sinkholes are found all over S. and C. America, especially the Yucatan.