Monitoring Strategies
Earthquakes are impossible to predict and prevent, but , in Japan, there is one very small early warning system.
Just as the earthquake starts, the system records the expected magnitude and arrival time, and then promptly slows down trains, stops elevators, and messages every home phone line in the area.
Just as the earthquake starts, the system records the expected magnitude and arrival time, and then promptly slows down trains, stops elevators, and messages every home phone line in the area.