Despite that, the students are back at school after summer vacation, with a one-day delay, says high school district superintendent Hasmik Danielian.

“One day late, and we made sure that the safety of the kids is not compromised under any circumstances,” Danielian said.

San Francisco was hit by a devastating quake a century ago, and the San Andreas fault, which caused it, runs through much of the state.

Scientists at the California Institute of Technology are studying the network of fault-lines beneath the desert community and others.

California Institute of Technology seismologist Kate Hutton says people need to be ready.

“Any earthquake is a reminder that we live in earthquake country and you had better prepare.” Hutton said.

Hutton says, we do not know when, but we know that some day, a big earthquake is coming.

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