Japan has developed an undersea warning system that can detect earthquakes 20 seconds before they reach land, significantly enhancing its disaster preparedness.

If the ocean floor had a nervous system, it might look something like this: thousands of miles of fiber-optic cables connected to sensors set atop the fault lines where Japan’s earthquakes begin. Completed in June,

Google’s Android Earthquake Alerts program is a globe-spanning earthquake early-warning system that uses billions of phone sensors to detect seismic shaking and alert those at risk

Japan launches worlds first underwater earthquake early warning system with 6,000 km of fiber optics Japan unveils pioneering fiber optic network for seismic safety and disaster preparedness

Italy's first rail Earthquake Early Warning System debuts on Rome–Naples line, using sensors to detect and halt trains.View on euronews