A couple of months ago I was walking through a park late at night thinking I was alone. So it was a rather surreal experience to see phones light up everywhere

A couple of months ago I was walking through a park late at night thinking I was alone. So it was a rather surreal experience to see phones light up everywhere around me with that woman's voice speaking in almost perfect unison. In this particular case there was a 2-3 second warning. Was one of the more violent ones Tokyo has had recently and I was rather glad to not have been inside.