Welcome to your wake up call. Living primarily in the East, to include NH for a year, you don't think a lot about earthquakes, although I've been through 2 of them, TN and NC.

Rather than focusing on bugging out, figure on bugging in more, as DW/DD don't seem to like the idea of roughing it. Worst case scenario, camp in the yard.

Pick a closet, or part of a closet, and store your gear there. Keeping it all in one place, close to a door, means you know where it is, and get grab it on the way out. I don't recommend garages, as the temps vary too much.

Good luck.