The magnitude 4.4 quake — centered near Highland Park on Monday — came with an early warning from California’s quake alert system. It was not immediately clear how many people got the alert. But it is ...

(TNS) - California's earthquake early-warning systemis getting a seismic upgrade, one that will allow residents to receive more timely alerts about shaking from an incoming megaquake. The upgrade, ...

With the unpredictable and destructive nature of earthquakes, a few extra seconds of notice can make all the difference in the world. That’s why the California Office of Emergency Services is ...

Add Yahoo as a preferred source to see more of our stories on Google. A screenshot of a Wireless Emergency Alert — similar to an Amber Alert — warning of incoming shaking. (Robert de Groot / U.S.

Most Californians know that sinking feeling. The ground shakes, jolting you to attention. For a split second, your mind considers the possibilities: A truck driving by? Someone dropping a heavy object ...