I contend that the most important aspect for trying to survive any natural disaster is to have enough food on hand to keep you and your family fed for at least 6 months.
How do you do that? Well you need to start storing food in a cool dry place, that is designed to be good to eat for the next 10-20 years.
You can find out all about how to begin preparing your long term food storage by watching this video:
Also watch this video on youtube: https://youtu.be/M43rO3hXiX0
So there ya go, all you need to know to get started storing food for an emergency.