An earthquake hit Southern California on Tuesday, but it reveals some good news for people across the state. 

USGS officials say the early warning system worked ahead of the 4.4 earthquake

Seismologist Dr. Lucy Jones says their early warning system worked on Tuesday, giving them a 3-second warning that strong shaking was coming in.

She said the 4.4 quake was felt over a large part of Los Angeles, from Oxnard to San Bernardino and San Fernando Valley to Orange County.

Basically, the people near it fell strong shaking, strong enough to throw things off shelves.

As you got farther away, people felt weaker shaking further away, a rolling motion.

Dr. Jones said that was the largest quake in the L.A. metro area in three years.

And in the big picture, she said this is an ordinary quake for California in terms of the size.

“We had about a dozen aftershocks so far,” Dr. Jones said. “Largest 3.4. Just a minute after the first, we’re continuing to have magnitude ones and twos. It would not be surprised to have another felt event, like any other earthquake in California. This has a 5 percent chance to being a foreshock to something bigger.”

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