I used to live in San Jose, CA, and the thought of trying to get out of SF after a major quake makes my stomach queasy just thinking about it. It would probably be more of a nightmare than I can even imagine, and I have a really good imagination.

Peninsula with only one direction out, part of the area built on fill (add water and jiggle), peninsula with major tidal surge hitting it from both sides, over 17,000 people per square mile, overpasses every half-mile, and the way out empties into Santa Clara County, which is almost as densely populated as SF, and it would probably have as much damage as SF but over five times the area.

Philip, you have my sympathy on trying to plan for that. Make sure you have several pairs of sturdy boots and a belt that carries a lot of water. And an AK-47 or something would be nice, too.