Newly Discovered Underwater Volcano Ka'ena Rewrites Formation of O'ahu Island

May 19, 2014 9:40 AM

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Newly Discovered Underwater Volcano Ka'ena Rewrites Formation of O'ahu Island

A newly discovered underwater volcano shows that the Hawaiian island of O'ahu was formed by three major shield volcanoes, not two as was widely believed.

An international team of scientists led by the University of Hawai'i at Mānoa discovered a third volcano called Ka'ena, on whose flanks the Wai'anae and Ko'olau Volcanoes later formed.

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