Ian, I wouldn't spend alot of money or time on things for stuff like this. Once in a decade you would use it. Just take care of your neighbor if they need help, check on your neighbor if they are old, and always, have things on hand as you should anyway, like flashlights, those batteries, some food, extra water, and meds if you need them. And, loads of common sense not to panic. Just do what you need to do, leave your home to safety. Whatever, needs fixed when you come back, that is nothing. Things can be fixed.