“We reached out to Caltech, and they said it’s not seismic; it’s sonic-related,” said Vicki Osborn, an assistant emergency manager in the Sheriff’s Department. Officials at the Camp ...

"We reached out to Caltech, and they said it's not seismic; it's sonic-related," said Vicki Osborn, an assistant emergency manager in the Orange County Sheriff's Department. Ian Gregor of the ...