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Monday, 14 May 2012 - 8:38
Rise and fall of underwater volcano revealed
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The violent rise and collapse of an underwater volcano in the Pacific Ocean has been captured in startling clarity for the first time.

Researchers studying the Monowai volcano, near Tonga, recorded huge changes in height in just two weeks.

The images, gathered by sonar from a research ship, shed new light on the turbulent fate of submarine mountains.

As many as 32,000 underwater mountains have been identified around the world and the majority are believed to be volcanic in origin.

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