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Could Underwater Caribbean Volcano Threaten US?

Ocean explorers hope the active volcano will unlock secrets to underwater earthquakes and tsunamis.
03:59 | 05/15/2014

Transcript for Could Underwater Caribbean Volcano Threaten US?

You are about to go on a journey thousand of feet down in the ocean. Here an underwater volcano could cause a massive tsunami on the east coast of the United States. And we're getting a... See More
This transcript has been automatically generated and may not be 100% accurate.
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