But, I can give money. Even if it isn't a lot.
There are some fantastic opportunities right now to share with people effected by these disasters. I'm sure you've heard about the Do the Write Thing for Nashville Auction raising money for flood relief. You can bid on agent critiques and phone calls, editor critiques, books, and so much more. It's a great opportunity to get professional feedback AND help out people in need.
And if there's nothing at the auction that interests you, there are hundreds of other ways to give (just make sure to only donate to legitimate charities!). I hope you'll do something if you can.