Disasters happen all the time and can strike at a moments notice. One thing that I do in my home is to have flashlights accessible throughout the house in many rooms. In some cases you many not be able to light a candle due to gas leaks, flashlights are great. Also there are flashlight apps for your phone too.
But my other suggestion is to make a survival kit for your home. This should include items that will get you through the any tough times. You may not be able to leave your house for several days. Helpful items to include might be: non-perishable food, can opener, paper plates, plastic utensils, bottled waters, a flashlight, a few towels, sheets, toiletries, a blanket, toilet paper, pen/paper, first aid kit, a few small games or magazines and a change of clothes for everyone.