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Earthquake Early Warning Alerts Go Live Across California In Time For Great Shakeout Drill

LOS ANGELES (CBSLA/AP) -- The California Governor's Office of Emergency Services says earthquake early warning alerts are available statewide starting Thursday.

The warnings produced by the MyShake system will be pushed through a smartphone app and the same wireless notification system that issues Amber Alerts.

Using ground motion sensors, the system detects the start of an earthquake and calculates location, intensity and alerts areas where shaking is likely to occur.

The system's statewide debut coincides with the 30th anniversary of the Loma Prieta earthquake that ravaged the San Francisco Bay area on Oct. 17, 1989, as well as Thursday's annual Great Shakeout drill.

The alerts have been in development for years and last year were made broadly available to businesses, utilities, schools and other entities. The only current large-scale notification system is for Los Angeles County.

But officials made some tweaks to the fledgling Shake Alert mobile app following two massive earthquakes that rattled the Ridgecrest area in August after those who lived in the area failed to receive any warnings.

(© Copyright 2019 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)

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