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flag Scientists use lasers on undersea cable to detect earthquakes and tsunamis, showing promising results.

flag A UK-New Zealand scientific collaboration is testing laser technology on the Southern Cross NEXT cable between Australia and New Zealand to detect earthquakes and tsunamis. flag Using optical interferometry, the system sends ultra-stable light along the cable and analyzes returned signals for changes that might indicate seismic activity. flag The technology, which has shown promising results including detecting a recent 7.2 magnitude earthquake, aims to revolutionize early warning systems, offering a cost-effective way to save lives and reduce coastal damage.

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