Earthquakes

Before an earthquake:

Bolt down water heaters. Strap them securely to a wall.
Be sure your house is bolted to the foundation.
Some walls may require additional bracing -- check with your local building department, contractor or architect for assistance.
Learn to shut off all utilities, should it be necessary.
Have fire extinguishers strategically located on each floor.
Make sure the chimney and roof are in good condition and well supported.
Attach mirrors, picture frames, hanging plants, or lamps securely to a wall or ceiling.
Keep beds away from glass or any hanging object that might fall.
Brace tall furniture or bookcases and refrigerators, and attach to walls.
Use sturdy latches on cabinets to keep doors from swinging open.
Use flexible connectors for gas supply to gas fuelled appliances.

If you're indoors, stay there but seek cover under an interior doorway or heavy desk or table. Avoid windows and outside doors.
If you're outside, stay there. Get away from buildings and watch for chimneys, overhead wires, poles or other objects that might fall.
If you're in a car, pull over and stop -- away from bridges and overpasses. Stay in the car and turn on the radio for information.