California on 30th anniversary of the Loma Prieta Earthquake, which was Thursday, California became the first state roll out a statewide earthquake early warning system.California Earthquake Early Warning System Is Now Up And Running
The system uses data from hundreds of sensors across the state that measure ground motion.
When an earthquake starts,send an instant signal to U.S. Geological Survey computers in Pasadena. Those computers then send an alert over California’s wireless emergency alert system, which also is used to send text message notifications about severe weather warnings and Amber Alerts,
Under the new system, anyone with a cell phone who hasn’t opted out will hear a loud tone, and a message will pop up on the screen telling them an earthquake is imminent and to “drop, cover and hold on.”
The goal is to provide a few seconds to 30 seconds of warning so people can get away from things which could hurt them on the way down or pull their vehicle to the side of the road. In short, the goal is reduce the risk of injury and save lives.
