It seems children in quake/tsunami affected areas are coping with this difficulties quite well. Adults say " they are the hope ".
This worries me. They must have fears, feelings of loss, depression etc.... I'd like to say to them "You can cry. Cry enough and then get up again. "
If they get used to holding back their feelings and try to be too nice. They have to pay for it later... when they get older. We shouldn't give them too much burden.
They are trying to please and encourage adults. It's good to tell them " work together and be strong." , but at the same time, they need to relax and behave as children first.