Just because there hasn't been mass outpourings of help in the news media yet, doesn't mean there hasn't been help offered. Perhaps they are waiting for the big picture to become known before they can offer their specialties. Perhaps they are doing small things behind the scenes (medical personnel, utility workers, etc.). Kuwait has helped out in the past during hurricanes, Australia has sent firefighters several times to the West, and Canada has helped during such instances as 9/11 and the New England blackout of a few years ago, as well as during blizzards.
So, while there may not be a huge offering like for tsunami relief (which was an entirely different animal), I feel confident that our fellow neighbors will be helping as much as they can.