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Undersea internet cables can monitor seismic activity, predict earthquakes and more

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Thousands of miles of undersea cables that offer internet connectivity could help in monitoring seismic activity, detecting or predicting earthquakes, and even building climate change models.
The vast and dense undersea network of cables that offer internet to the world can also be used to monitor seismic activity. In fact, one of these cables has already detected an earthquake, thereby proving the technology works. The world’s seas and oceans are massive, and worryingly, the majority of the area underwater is still not actively monitored. With just a few dedicated sensors, there’s still a huge shortfall of regularly updated geophysical data. This could change due to a new breakthrough. A recently published paper claims a new method turns the undersea telecommunications cables into an array of sensors.

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