We live in California. Earthquakes happen; it's a fact of life here. Eventually, God forbid, there will be a big enough earthquake to disrupt life for several days.
You're supposed to have tinned food on hand to survive three days, but I hate, hate, hate tinned food (other than tuna in oil). Nevertheless, if it's tinned food or starvation, the choice is obvious. (Starvation, of course... just kidding.) Obviously we aren't going to starve if we don't eat for three days, but you get the idea.
Besides the obvious -- bottled water, an opener, and Sterno -- what does a Chowhound need in his emergency food supply to be able to eat well even after (cholilleh) the Big One hits?