California's MyShake earthquake warning app, developed by UC Berkeley, has expanded its availability to Mac computers and Chromebooks.
California's free earthquake early warning app is now available for Mac computers and Chromebooks — a major expansion of access for the warning system, which has been available for years on cellphones. The MyShake app, developed by UC Berkeley, is one of the most popular ways to receive earthquake early warnings generated by the U.S. Geological Survey's ShakeAlert system, which provides alerts in California, Oregon and Washington.
The app has been downloaded nearly 4 million times since it launched in late 2019. MyShake was already available on iPhones, iPads and Android phones. UC Berkeley is also working to make MyShake available for the Windows operating system, said Richard Allen, director of the Berkeley Seismology Laboratory. More than half a million people in California got early warnings through MyShake on Dec. 5 for a magnitude 7 earthquake that struck in the Pacific Ocean 30 miles off the Humboldt County coast and Dec. 9 for a magnitude 5.7 earthquake centered about 50 miles southeast of Reno, which was widely felt across Central California. Some users got up to 15 seconds of warning before they felt shaking from the earthquake off Humboldt County, officials said. And some people got more than 10 seconds of warning about the Nevada earthquake. On Aug. 6, more than 517,000 early warning alerts went out to MyShake users for a magnitude 5.2 quake that struck Kern County, near the Grapevine section of Interstate 5. People throughout Southern California said they got a few seconds of warning before they felt shaking. Earthquake early warning systems operate on the scientific principle that shaking waves moving through rock travel slower than today's telecommunications systems — similar to how you might see a bolt of lightning seconds before hearing thunder. For example, it would take more than a minute for a magnitude 7.8 earthquake that starts at the Salton Sea along San Andreas fault to be felt 150 miles away in Los Angele
EARTHQUAKE WARNING CALIFORNIA MYSHAKE APP EARLY WARNING SYSTEM TECHNOLOGY
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