Man this does look bad. I'm from Christchurch, New Zealand and experienced the 6.3 quake here on 22nd of February.
8.8 on the richter scale is around 8000 times more powerful than 6.3 I heard on BBC. Their quake was 120km offshore though not in the middle of a major city (as ours was pretty much) or else it would have been completely flattened. But now theres tsunamis...
Good luck to all head-fiers in Tokyo. Looks terrible on the news and I'm sure that's nothing compared to what it's like being there.
Apparently there's going to be heaps of scams as there was for the Boxing Day Tsunami a few years back, so if you've got the funds to donate only do so through a well known charity's actual website.