New tsunami warning system


The warning system in Indonesia to alert residents of tsunamis could not prevent disaster in Sulawesi because it hasn't worked for six years after many of the surface buoys were vandalized. However, a new system is underway where sensors on the bottom of the ocean detect tsunami waves and send acoustic signals back to shore, giving people 20 to 30 minutes warning to evacuate. A prototype has been installed, with more testing and infrastructure development planned.

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