LA Metro Installs Early-Warning Earthquake Alerts

L.A. previously debuted ShakeAlertLA, a smartphone app that alerts users about a detected earthquake in their area seconds before it occurs. Those few seconds are long enough to prepare oneself for shaking and quickly move away from large furniture and other objects that can fall. The app had over 1 million downloads before it was replaced with a statewide MyShake app in 2020.

The ShakeAlert technology will now be deployed at the county’s bus and train maintenance centers and facilities, and warn employees, drivers, and patrons about oncoming shaking. The early warning system detects earthquakes of magnitude 4.8 or greater. And once ShakeAlert is deployed, it’ll be the largest deployment of any U.S. transit agency.
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