undersea volcanoes
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A Volcanic Explosion 520,000 Years Ago Dwarfed One That Devastated the Minoan Civilization
An undersea eruption a half million years ago was much larger than nearly anything recorded in human time.
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Using Sound to Study Underwater Volcanoes
To find out how volcanoes in the Pacific Ocean influence earthquakes and tsunamis, a team of scientists listens for ‘echoes’ from under the sea.
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Undersea Volcanism May Help Explain Medieval Year of Darkness
Tropical fossils found in a Greenland ice core hint at volcanic eruptions that threw the world into darkness from 536 to 537 A.D.
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Photo Essay: On an Island, a Lost Part of the World Is Found
On the volcanic Indian Ocean island of Anjouan, scientists are investigating a rock that apparently formed on a far-off continent.
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On a Remote Island, a Lost Part of the World Is Found
On a small volcanic island in the Indian Ocean lies a geologic enigma—a mass of pure white quartzite sandstone apparently formed on a faraway continent long ago. How did it get there?
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A Front Row Seat on the Ocean Floor
Ocean scientists are, in their hearts, explorers. Our group aboard the R/V Atlantis may be more infected with the exploration bug than most. The first goal of our expedition makes that clear: We aim to map regions of the seafloor never before seen by human eyes.

AGU25, the premier Earth and space science conference, takes place December 15-19, 2025 in New Orleans, Louisiana. This year’s theme—Where Science Connects Us—puts in focus how science depends on connection, from the lab to the field to the ballot box. Once again, Lamont-Doherty Earth Observatory and Columbia Climate School scientists, experts, students, and educators are playing an active role, sharing our research and helping shape the future of our planet. #AGU25 Learn More
