Bracing yourself in a doorway is no longer recommended. If there is a DOOR it is going to violently swing with the additional potential for injury. There are a few products most usefull before an earthquake. "Museum wax" should be used to secure glass and porcelain objects. It is not permanent, but prevents the creation of flying missiles. Several Velcro products are availabe to create safety belts for larger electronic devices. Simple plumber's strapping ( the perforated metal banding) secured around water heaters and large appliances can also stop or reduce their movement. I worked at a Home Depot during the Northridge Quake. We had the cash vault personel and the opening manager inside when it struck. He LOCKED the girls in the store and ran home to check his family. I smashed the glass door open and FORCED the girls outside into the parking lot. The aftershock finished the job; 3 high pallets of cement and building materials crashed to the ground, every window exploded,light fixtures fell like missiles and the indoor plants were untouched <img src="images/graemlins/blush.gif" alt="" />. The whims of an earthquake are as unpredictable as the reaction of people!