Early Earthquake Warning

California has numerous active faults throughout the state that are known to produce large earthquakes. To ensure that the high-speed rail system can operate safely in such a seismically-active area, the Authority will implement a comprehensive seismic safety program, including earthquake early-warning and appropriate operational responses. The infrastructure that will support the high-speed rail program - such as bridges, tunnels, high-speed rail stations, and other facilities - will be built to meet all state standards for earthquake design in California.¹

The Authority is also partnering with first responders across the state to create a response plan that will provide appropriate assistance to all passengers and operators on high-speed rail during a seismic event.

Select numbers on the Illustration below to learn more about Early Earthquake Warning

Footnotes

1. Caltrans Seismic Design Criteria Version 1.7 (2013); American Railway Engineering and Maintenance-of-Way Association Manual, Ch. 9, seismic design for railway structures (2015)