During the Shaking:

If outside, stay outside, if indoors stay indoors.  Most injuries during an earthquake occur when people attempt to enter or exit a building.

Stay indoors and take cover under a sturdy object or in a hallway. Stay away from glass.

If the earthquake catches you outside, move away from buildings or utility wires.

Don't run through or near buildings.  If you are in a moving car, stop as quickly as safety permits, but stay in the vehicle.

After the shaking:

Don't use candles or open flames.  Douse all fires.

If you see electrical damage, switch off electrical power at the main panel.

Visually inspect all utility lines, chimneys and appliances for damage.

If you smell gas, open the windows and shut off the main valve.  Then leave the building and report gas leakage to the authorities. 

If water pipes are damaged, cut off the water supply at the main valve.

Turn on your radio to get the latest emergency bulletins.

Use the phone only to report a life-threatening emergency.

Don't go sightseeing.  Aftershocks may occur for several days after the main tremor.