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Last updated on April 23, 2014 at 12:22 EDT

Latest Hawaii hotspot Stories

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2011-02-16 11:20:00

Nearly half a mile of rock retrieved from beneath the seafloor is yielding new clues about how underwater volcanoes are created and whether the hotspots that led to their formation have moved over time. Geoscientists have just completed an expedition to a string of underwater volcanoes, or seamounts, in the Pacific Ocean known as the Louisville Seamount Trail. There they collected samples of sediments, basalt lava flows and other volcanic eruption materials to piece together the history of...

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2008-03-27 15:10:00

Scientists explore huge volume of molten rock now frozen into the crust under the ocean's floor  For the first time scientists have mapped the layers of once molten rock that lie beneath the edges of the Atlantic Ocean and measure over eight miles thick in some locations. The research, reported in this week's edition of Nature, gives us a better understanding of what may have happened during the break up of continents to form new mid-ocean ridges. The same volcanic activity in the North...