Si no recibiste una notificación de ShakeAlertLA, es porque el epicentro del terremoto fue en el condado de Kern y el sistema ShakeAlertLA está diseñado para cubrir los terremotos que ocurren dentro del condado de L.A.
provide an earthquakeLos Angeles residents were asking that question after the July 4 earthquake that was felt through Southern California, when they didn’t get an early warning from the much anticipatedDid it fail? Not quite. The ShakeAlertLA smartphone app was only designed to alert users of cellphones physically located in Los Angeles County if there was at least “light shaking,” or level 4 on the Modified Mercalli Intensity Scale, expected for Los Angeles County.
“It didn’t meet the threshold for the L.A. area,” said Doug Given, the U.S. Geological Survey’s earthquake early warning coordinator. “ShakeAlertLA is not designed to detect earthquakes that far away,” said Caltech seismologist Egill Hauksson. The USGS’ system relies on hundreds of earthquake sensors scattered throughout the West Coast. There is no public smartphone app yet available that sends earthquake early warnings throughout all of California.
That ShakeAlert system worked — it’s just that the public does not yet have access to that information as scientists continue to refine its public delivery system. The USGS’ ShakeAlert system issued an alert about 6.9 seconds after the shaking began, Given said.
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