Fiber optic internet cables could double as earthquake detectors

A 3 mile (4.8 km) loop of fiber optic cable buried underneath Stanford University was able ...

When it comes to earthquakes, the earlier the warning, the better. While current seismometers can pick up minor tremors with precision, they’re relatively short-ranged and expensive, but now, a Stanford study has demonstrated that an extensive earthquake-detection network could already exist right under our feet: the optical fiber cables piping high-speed internet throughout cities.

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