When the lines go down: What Tonga disaster reveals about global telecom

In the wake of a violent volcanic eruption in Tonga, much of the communication with residents on the islands remains at a standstill. In our modern, highly-connected world, more than 95% of global data transfer occurs along fibre-optic cables that criss-cross through the world’s oceans.

Breakage or interruption to this critical infrastructure can have catastrophic local, regional and even global consequences. This is exactly what has happened in Tonga following Saturday’s volcano-tsunami disaster. But this isn’t the first time a natural disaster has cut off critical submarine cables, and it won’t be the last.

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