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Alex Padilla
Quake alerts' success spurs effort to complete early-warning system
Quake alerts' success spurs effort to complete early-warning system

When the 6.0 earthquake struck Napa County last month, a computer at a university lab here raced to warn agencies across the Bay Area. BART received an alert ordering trains to stop. San Francisco 911 operators had eight seconds to brace for an onslaught of calls. UC police managed to send out a "code red" on their radio system before the shaking started. The earthquake was the largest to occur in a highly populated area of California since scientists and government officials began testing a seismic early warning system. By most accounts, the system was a success this time. A countdown alert reached various parts of the Bay Area — about 30 miles south of the epicenter...

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