California’s Earthquake Early Warning System Sent out First Alert

California’s Earthquake Early Warning System Sent out First Alert

Two months after extending across California, the state’s Earthquake Early Warning system sent out its first real alert, instructing residents of trembling in Monterey and San Luis Obispo counties, along the San Andreas Fault. Whereas the quake eventually registered at 4.3 on the Modified Mercali scale, the USGS information reveals it was initially estimated at …

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