How millions of phones get early notice of California’s biggest quakes
Want to know when an earthquake might hit? There's an app for that! (Video: Monica Rodman/The Washington Post) Known as ShakeAlert, America’s earthquake early-warning system was developed by the U.S. Geological Survey and partners to give you typically up to 20 seconds of advance warning before…
#iphone #android #apple #californians #shakealert #westcoast #monicarodmanthe #usgeologicalsurvey #myshake #quakealertusa