My assumption here in the San Francisco Bay Area is that there will be no way out. We're on a peninsula with two highways on either side, both with over/underpasses. One parallels the San Andreas Fault. My assumption is that we'll shelter in place, and we have a month's supply of food, clothing, shelter, and cooking gear. Also a corkscrew.

We're both trained as CERT volunteers in light search and rescue and first aid, and we've both taken wilderness first aid courses, on the assumption help won't be arriving. We're experienced campers. We're both ham radio operators, with links to the sheriff's office and fire department. We have an HF radio with antennas, so if the gear survives, we'll be able to communicate outside our disaster area.

Assuming we survive without injury, we'll survive. The "without injury" part is the big problem.