Wavelike patterns in 115-million-year-old amber suggest that a long-ago tsunami inundated what is now northern Japan, researchers report May 15 in Scientific Reports.
Tsunamis can be destructive and, to anything alive nearby, often terrifying. But the physical damage wrought by these giant waves eventually erodes away, typically leaving behind little evidence of their passage. As a result, there’s scant records of tsunamis stretching back beyond the current geologic epoch, which began roughly 12,000 years ago.
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