The American Red Cross publishes an "Emergency Survival Guide" on their website.
Disaster can strike quickly and without warning. It can force you to evacuate your neighborhood or confine you to your home. What would you do if basic services -- water, gas, electricity or telephones -- were cut off? Local officials and relief workers will be on the scene after a disaster, but they cannot reach everyone right away.EMERGENCY SURVIVAL GUIDE [RedCross.org]