To be even better prepared, get some training. For basic information, see http://readymarin.org/plan-prepare/. For more advanced training, take the Community Emergency Response Training (CERT) course offered by our local Office of Emergency Services/Fire Department (see the Training page).
http://readymarin.org/plan-prepare/. See link to ReadyMarin checklist bundle.
Also, explore http://www.redcross.org/prepare/disaster.
You can supplement the core items with additional items of your choice. In addition, you should have an emergency kit with medical and other supplies. Check out the Earthquake Supply Center at 3095 Kerner Blvd. in San Rafael (459-5500).