Flashlight with extra batteries. First Aid book. Adjustable wrench for turning off gas and water. Smoke detector properly installed. Canned and dried foods sufficient for a week for each member of your household.
Canned goods have a normal shelf-life of one year for maximum freshness.
Non-electric can opener. Portable stove such as butane or charcoal. Use of such should not take place until it is determined there's no gas leak in the area. Charcoal should be burned only outdoors. Use of charcoal indoors will lead to carbon monoxide poisoning.