Just weeks after two major earthquakes shook California, one of them prompting a rare tsunami warning for the coast, state officials announced several upgrades to its early notification system for ...

For hundreds of thousands of local residents, the first sign of Thursday's earthquake wasn't the shaking; it was the alarm and alert they got on their phones moments before the quake hit. According to ...

Add Yahoo as a preferred source to see more of our stories on Google. An earthquake early warning app, which notified more than 500,000 people following two recent California earthquakes, is now ...

MALIBU, Calif. (KABC) -- California has a long history of earthquakes, but a relatively short one of earthquake alerts. So when a 4.7 magnitude earthquake struck the Malibu area Thursday morning, the ...

A magnitude 4.1 earthquake that struck Northern California on Wednesday morning, combined with an upcoming statewide earthquake practice drill, has many in the Golden State thinking about disaster ...