When it happens again, and it will happen, it will send the entire planet back to the stone ages. The waves will be miles high. If you live on the coast lines you don't have a chance. The earthquakes will devaste all the major fault lines. The dust cloud generated into the atmosphere will circle the earth and completely block the sun's vital light. Planets will die. The food chain will collapse. Animals will die. Disease and famine will be everywhere. Governments will collapse. Riots and anarchy will happen everywhere. Infrastructure will all be destroyed. Fires will break out with no one to put them out. All the communications networks will be gone. There will be no oil. No electricity. Nothing manufactured. No water coming out of the pipes. Everything will be gone except for a few million people that for whatever reason were in the right place at the right time to survive. They will have to rebuild and repopulate the world again. Most will be so traumatized they'll go insane. Hopefully there will be enough smart people that will survive to provide the leadership and brainpower to do it.
