The 6.4 earthquake along the far reaches of the Northern California coast didn’t rattle windows or knock items off the shelf in the Bay Area, but it did wake up hundreds — as far south as San Diego — who’d registered for the fledgling earthquake warning system that sends alerts to cell phones.
“This definitely needs some fine tuning if it is going to wake people up in the middle of the night,” one San Diego recipient replied Tuesday to the U.S. Geological Survey’s ShakeAlert system query on Twitter.
In Burlingame, Rohit Vashisht also woke to his phone buzzing with an alert early Tuesday morning. But he and his wife
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