Hi Aurakle and others,
Thank you for your interest and support.
Sketchcrawl events dates are typically setup in advance due to work schedules, in this particular instance it seemed logical (per Enrico's post) to use the current scheduled event to engage our fellow artists across the world to participate with a common goal of assisting our friends in Japan.
A potential approach would be to ask people to sponsor your participation in the April event and entice them to donate now (not wait until after the event), in that way the donation process has been initiated.http://give2asia.org/sketchcrawl
Also, according to the FAQ http://artistshelpjapan.blogspot.com/p/faq.html
The fund (setup by our friend Dice Tsutsumi), is mainly for US donors, if you live outside the US, please find a local non-profit fund setup to aid Japan, or use one of the ones recommended in the FAQ.
If you are able to engage a local group and do a local even sooner, all the better... you may even be more sucessful at finding some sponsors now and more later. In this type of challenging situation, any effort will make a difference.
Thank you again for your help!