The earthquake early warning system, called ShakeAlert, is operated by the U.S. Geological Survey (USGS) and detects earthquakes of magnitude 4.8 or greater. Metro’s deployment of ShakeAlert is believed to be the nation’s largest installation of the early warning system at a transit agency. During Thursday’s Great ShakeOut, Metro will deliver test alerts to all locations with the warning, “Earthquake, earthquake, earthquake, shaking expected,” prompting operations staff to perform earthquake response procedures to secure people and property as if it was a real earthquake. Metro is an early adopter of the ShakeAlert earthquake early warning system. Next, Metro is working to install ShakeAlert in every bus and train on the Metro system, further enhancing the ability to protect riders in the event of an earthquake.

Source: MetroXpress January 01, 1970 00:00 UTC