An indication of tsunami depth from Onagawa in Miyagi prefecture, one of the closest towns to the epicenter, about 40 miles northeast of Sendai (map). Via Canada's National Post.
Google maps is adding useful layers for study and analysis of the quake and its effects.
Callan Bentley at Mountain Beltway has an excellent summary of geophysics and vertical and horizontal displacement here.
Labels: japan, Onagawa, tsunami