Well if it was me I would have a rather extensive BOB bag for myself and anyone else in the house. Besides that, seems your other option as LED mentioned is your car, thats assuming it doesn't get swallowed up during a quake. If it were me and the roads were blocked I would grab my BOB and hike out of the area trying to chose the safest route to a pre determined location like family or friends, or at the least to some stable ground. If the car is not an option then a well thought out mt bike would be my other suggestion. Having a storage locker outside the area with a stash would be another option, something within a day or twos walk.