“For most of the ocean, we don’t know what the bottom looks like,” said Nathan Angelakis, a doctoral student at the South ...

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This volcanic pile extends from the very top of the volcanoes to the original ocean floor: the lower levels may contain pillow lavas from eruptions below sea level. Originally the sea floor was 4 or .

Survivors of the 2004 Boxing Day Indian Ocean tsunami described how they were “fighting for our lives” on the day, ahead of the release of a new documentary marking the 20th anniversary of the ...