According to BBC News it seems that that part of Japan moved up to 4 meters in the Mw9.0 earthquake. Closest to the epicentre of the earthquake the movement is possibly up to 20 meters, but the movement might have not been all the same within the fault line (100 wide and 500 km long). This earthquake might also have shifted the Earth axis about 16.5 cm. But this earthquake has also changed the sea bead in such way that it needs to be remapped for ships.
Two videos of the earthquake.
BBC News on this.
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2011 Japanese Earthquake and Tsunami (Google Information web page)