Thats a big one on the Richter scale by your description. There is a reinforced 'survival bed' that was discussed in an old thread. Our earthquake S&R expert Burak in Turkey pointed out they can be in themselves dangerous. First of all you may want to do an inspection of your home against current California building codes. Is the foundation bolted to the floor? Do you have an older brick or stone freestanding fireplace and chimney? Have you used strapping to secure your water heater and larger furniture? What about Museum Wax used to secure bric a brac to shelves? Is there a accessable kit under your bed; flashlight, gas shut off wrench, whistle,water, shoes,first aid, medications? you need to practise dropping and rolling under a sturdy bed. Running outside will get you killed by falling debri (that brick chimney) and doorframes ARE NOT a safe place. Doors slam closed with great force.