The largest iceberg — called B17B — spotted this century is currently on its way to Australia. This superberg “broke off the Ross Ice Shelf in Antarctica in 2000, and has been floating in the cold waters of the Pacific until recently, when ocean currents and weather conditions nudged it north. ”
Australian media quoted a glaciologist who said if the iceberg crashed into the continental shelf, it would cause a magnitude three to four earthquake. But it will probably disintegrate into a flotilla of smaller icebergs before that can happen.
[Source]
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December 11, 2009