This Cave Holds a Spectacular Record of 5,000 Years of Tsunamis
A layer cake of bat poop and sand reveal the history of tsunamis in the Indian Ocean.
by Sarah Zhang
Jul 19, 2017
3 minutes
Benjamin Horton remembers being in southeast Asia just months after the devastating 2004 Indian Ocean tsunami. “They were still dealing with a disaster,” he says. “The roads were in a terrible state.” But in those days, the formerly niche field of tsunami research had taken on new urgency. Horton, who studies sea levels at Rutgers University and Nanyang Technological University, was just one of dozens of researchers who came in search of answers: Had this happened before? Would it happen again?
The answers were
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