Earthquake Early Warning System Worked, Gave Heads-Up Before 5.3 Temblor Hit Off SoCal Coast: Officials

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

Officials said the 5.3 magnitude temblor that rattled Southern California area Thursday proved another successful test for the state's nascent earthquake early warning system.

Some received about a 10 seconds heads-up ahead of Thursday's 5.3 earthquake. (Credit: KTLA)

Some received about a 10 seconds heads-up ahead of Thursday's 5.3 earthquake. (Credit: KTLA)

John Vidale, director of the Southern California Earthquake Center, said the earthquake early warning system worked. At USC, he and others heard the alarm go off before they felt the shaking, "maybe 10 seconds ahead, enough for us to puzzle about it before the shaking hit."

"It was pretty widely felt across the USC campus. We only felt about 3 to 4 seconds, kind of a vibration, kind of long enough for it to sink in that it was an earthquake before it stopped," Vidale said.

The earthquake early warning system is under development by the U.S. Geological Survey and is available now to a limited array of testers, but it is expected that more people will be eligible to test the system later this year.

Read the full story on LATimes.com. 

Notice: you are using an outdated browser. Microsoft does not recommend using IE as your default browser. Some features on this website, like video and images, might not work properly. For the best experience, please upgrade your browser.