Onnagawa, one of the harbor towns in Miyagi prefecture right on the coast was reportedly hit by a 15m high tsunami. Had a friend who lived there back in the 90's and visited the town during spring break in 1995 - quiet little fishing village (with a nuclear reactor) but now I fear nothing is left. Given how close they were to the epicentre I doubt there was any time to react to it.
(JP)
http://www3.nhk.or.jp/news/html/2011...726011000.html