There are a number of ways you can contribute financially to the relief efforts, if you are able. Links and other donation information are posted to the official One Way to Grace Facebook page.
Those in the UK can make donations to Disasters Emergency Committee.
For those in the United States, I am a big proponent of donations being made to the Red Cross, who have an outstanding record for taking action in the face of catastrophes.
My heart goes out to everyone affected by this disaster.