Great news - particularly since Russia probably has a lot of equipment and expertise (large cargo planes, heavy helicopters, rescue crews, etc.). As for other countries, I would be willing to bet that most major countries have already been in contact with our government to offer their assistance. One of the problems right now is that there may not be a clear picture of what is needed, and where any aid should be sent.
For example, if Canada is ready to send food and water to the victims, where would they send it? I hope I am wrong, but it seems that things are not yet sufficiently organized or progressing to the point that officials can even direct humanitarian aid to certain locations.
Canada offerred help after 9-11. The people are very kind. Plus, they send us all their models & comedians.