Japan’s Bullet Trains Can Stop in Just 2 Seconds During an Earthquake Japan’s high-speed rail system can automatically stop bullet trains in as little as 2 seconds when an earthquake is detected—often before passengers feel the shaking. The system relies on early seismic wave detection that triggers instant braking. This technology has prevented countless derailments and makes Japan’s rail network one of the safest in the world. Important Details: • Automatic emergency stop within ~2 seconds • U