heh...apparently, the 2004 earthquake in Sumatra was watched closely by some satellites we have in orbit to detect gravity fluctuations, so we were actually able to watch as gravity change in response to the earthquake. That's cool. Now I want a satellite that'll cause earthquakes.

well most of the doomsday guys predict it well past their lifetime. They're not dumb enough to hang around and take the flak after we realise we're still alive