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Hawaii's Pūhāhonu confirmed the largest shield volcano on Earth


Content Team

Researchers have revealed Pūhāhonu in Hawaii is the world's largest shield volcano, revising past records that claimed nearby Mauna Loa was the largest. After a series of new measurements, including a chemical analysis of underwater rocks and a thorough survey of the ocean floor, scientists concluded how large Pūhāhonu is. The undersea volcano is twice the size of Mauna Loa, measuring 171 miles long & 56 miles wide.