Android phones around San Francisco's Bay Area buzzed with an alert on Tuesday morning: A 4.8 magnitude earthquake was about to hit."You may have felt shaking," some of the messages read.More than a million Android users saw the alert.And for some, it arrived seconds before the ground even started moving.
#people #information #smartphones #historically #limitations #tuesday-morning #underground #strategically #earthquakes #federal-emergency-management-agency
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