Ctrl-f "shinkansen" Nothing yet? For quite some time, Japan has had an automated system which will send signals to bullet trains to begin braking, immediately

Ctrl-f "shinkansen" Nothing yet? For quite some time, Japan has had an automated system which will send signals to bullet trains to begin braking, immediately after the detection of an earthquake in a nearby region. The wireless telecom network traffic speed and latency can outpace the earthquake wave propagation through the ground. It is my understanding that this worked successfully in the major quake in 2011, and that there were no derailments of high-speed trains. https://www.railway-technology.com/features/feature122751/ https://www.railway-technology.com/features/feature122751/ https://www.ejrcf.or.jp/jrtr/jrtr43_44/f64_ara.html https://www.ejrcf.or.jp/jrtr/jrtr43_44/f64_ara.html