Massive underwater volcanic eruption spewed rock raft visible from space

Over 70 percent of volcanic activity on our planet occurs on the seafloor, but scientists don't always get a close-up view of the events typically hidden by seawater. In 2012, the Havre volcano, northeast of New Zealand, erupted - and this time researchers got a chance to study the aftermath in what the Woods Hole Oceanographic Institution described as "the first up-close investigation of the largest underwater volcanic eruption of the past century." The eruption was so massive it generated a raft...

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