[Rockhounds] Android users alerted just before California earthquake

[Alan Silverstein]

Dora et al,

> 2.  This technology works by noticing shaking in the ground.  Notices
> it a nanosecond before the people who were on that ground.  No way
> it's ever going to give advance warning.

You are wrong about that, and should consider doing some study before
mouthin...  I mean, before replying here so dismissively.

Electronic signals travel a lot faster than ground motion.  Here's one
easily found website about this amazing new technology:

  https://www.shakealert.org/

Potentially it can warn far enough ahead to stop trains and elevators,
possibly get cars off bridges, etc, depending on circumstances.  If I
still lived in the LA area, I would love to at least have the chance to
hear a distinctive (I hope) audible tone on my phone (possibly
overriding Do Not Disturb at night) saying, "brace for impact!"

Cheers,
Alan Silverstein