You may need to survive on your own after a disaster. This means having your own food, water, and other supplies in sufficient quantity to last for at least three days. Local officials and relief workers will be on the scene after a disaster, but they cannot reach everyone immediately. You could get help in hours, or it might take days.
Basic services such as electricity, gas, water, sewage treatment, and telephones may be cut off for days, or even a week or longer. Or, you may have to evacuate at a moment’s notice and take essentials with you. You probably will not have the opportunity to shop or search for the supplies you need.
A disaster supplies kit is a collection of basic items that members of a household may need in the event of a disaster.

Basic Disaster Supplies
Kit locations
Maintenance