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Discovery

Jun 2, 2010

DON'T CALL THE GUATEMALA SINKHOLE A SINKHOLE

By Michael Reilly

The giant sinkhole that opened beneath downtown Guatemala City over the weekend is all the rage right now. There's just one problem: it isn't a sinkhole.

"Sure, it looks a lot like a sinkhole," geologist Sam Bonis told Discovery News from his home in Guatemala. "And a whale looks a lot like a fish, but calling it one would be very misleading."

Instead, Bonis prefers the term "piping feature" -- a decidedly less sexy label for the 100-foot deep, 66-foot wide circular chasm. But it's an important distinction, he maintains, because "sinkholes" refer to areas where bedrock is solid but has been eaten away by groundwater, forming a geological Swiss cheese whose contours are nearly impossible to predict.

The situation beneath the country's capital is far different, and more dangerous.

More from the "Oh, shit!!" dept:

Foucault's pendulum is sent crashing to Earth