New radiocarbon method reveals hidden ancient quakes off Japan
The Nankai Trough off Japan's coast is a known threat for future megaquakes, but its full seismic history has remained elusive until now. Researchers at the University of Tokyo deployed a new type of radiocarbon analysis on a sediment core from the Kumano Sea, revealing traces of multiple ancient earthquakes that were previously hidden from the geological record.
This boop discussion centers on how reconstructing a more accurate past can sharpen our ability to forecast future geophysical events. By filling in the gaps of seismic history, scientists hope to enhance disaster preparedness and give communities more reliable warnings before the next big one strikes.
The Nankai Trough off Japan's coast is known to be the site of future megaquakes, but its full seismic history has been a mystery. Researchers at the University of Tokyo applied a new type of radiocarbon analysis to a sediment core from the Kumano Sea, uncovering traces of multiple previously unknown earthquakes. By reconstructing a more accurate past, scientists aim to better predict future geophysical events and improve disaster preparedness. The findings were published in the journal Radiocarbon.
What kind of geological evidence do you think is most reliable for predicting future earthquakes?
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Source: Phys.org https://phys.org/news/2026-11-radiocarbon-analysis-uncovers-hidden-earthquakes.html
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