1) Stockpile sealed food and water. Being foremost in the thoughts and prayers of other nations won't put food in your stomach for at least several days in the best of circumstances. Where I normally live, tsunamis aren't an issue, but flooding, tornadoes, and extreme winter conditions are. I will not survive the initial disaster only to starve in the aftermath. Furthermore, don't store it all in one place. Family, storage rental, or even a secret squirrel stash buried in the woods within a one day foot-travel distance can make the difference between between hoping someone feeds you before you starve versus being able to maintain your health and strength in an extreme situation. For these acute events, I'm a big fan of the lowly MRE, due to being able to consume it cold without added water if necessary (based on experience, hunger truly does make the best sauce). Having at least a week's worth of food and water for a household and extended local family is a must from my perspective. Good advice. Read the rest here; Mausers, Medicine, & Motorcycles: "It's On You"