MyShake, an app that uses data from the USGS alert system to sense earthquakes, sent out its first public alert for a 4.3 earthquake on Tuesday (Los Angeles Times)

Los Angeles Times:
MyShake, an app that uses data from the USGS alert system to sense earthquakes, sent out its first public alert for a 4.3 earthquake on Tuesday  —  In a milestone, California's new statewide earthquake early warning cellphone app sent out its first public alert for a magnitude 4.3 earthquake …