I was awake when it struck, and I received this alert about 3 seconds before the shockwave hit my location:
[image: EQ1.jpg] My phone was isolated from the shockwave due to it being in my hands at the time, for what it's worth. JeffP On Sat, Sep 19, 2020 at 1:40 PM Sean Donelan <s...@donelan.com> wrote: > The VP Engineering for Android posted a visualization of the 4.5 > earthquake in > Southern California from data collected by Android phones. > > https://twitter.com/davey_burke/status/1307395583338885120 > > > USGS ShakeAlert is transmitted via WEA to Android, iPhone and other > cellular > devices; and shared directly with some public-private partners. Most > smart devices (Android, iPhone) collect diagnostic logs and report back to > their developers, but generally emergency responders never see data from > diagnostic reports. > > Developers don't include emergency alerts in other "smart" devices like > SmartTVs, SmartSpeakers, etc. >
