Experiencing an earthquake while in a moving vehicle has been compared to driving on four flat tires. If an earthquake occurs while you are driving:
Gradually decrease speed.
Pull to the side of the road when it is safe to do so.
Do not stop on or under overpasses or bridges.
Do not drive until local authorities have deemed it safe to do so.
Avoid parking near trees, downed power lines and buildings.
Stop the car and keep your seat belt fastened.
Remain in your car until the shaking stops.
Keep in mind that aftershocks follow the initial earthquake.
Turn on your car radio and listen for advisories (most radio stations are prepared to broadcast emergency information).
If driving on the freeway, and if it's safe to do so, exit at the first opportunity.
Be especially careful for mudslides and rockslides as earthquakes can jar loose these materials.
Be prepared by stocking the following items in your vehicle:
Fully equipped first aid kit
Bottled water
Blanket or sleeping bag
Flashlight with extra batteries and bulb
Fire extinguisher
Pocket radio with extra batteries
Local maps
Matches
Prescription medicine