Our friend Carl lives in Tokyo. We heard about the quake moments after it happened on Facebook. He's been giving updates regularly and has been posting videos as they get posted on FB. More and more are becoming available from people who were on higher ground. I'll post links as he posts them. The power of a tsunami is utterly amazing.
Here's the first.
And another of the quake from the 22nd floor.
Is seems the quake lasted 4 1/2 minutes.