Subsea internet cables

Subsea internet cables could help detect earthquakes

These telecoms cables could be used as a giant array of deep-sea scientific sensors, the UK's National Physical Laboratory (NPL) and its partners say.

Scientists tested the technique on an optical-fibre link between the UK and Canada.

The research is published in Science Magazine.

Because installing permanent sensors to monitor the ocean floor is very costly, only a few exist globally, the scientists say.