First things first — If you feel an earthquake do this:
DROP, COVER, and HOLD ON!
On the 30th anniversary of the October 17, 1989, Loma Prieta earthquake (which killed 63, injured 3,750, and caused an estimated $6 billion in damage), California rolled out the MyShake earthquake notification app.
Download it for free at myshake.berkeley.edu/ or at the App Store or Google Play.
Here’s a brief tutorial on what the app covers: