The post-event tsunami survey data were collected by scientific volunteers for the 2011 Tohoku earthquake tsunami. The individual data were measured under the severe situation after the disaster and please pay attention to contribution to individual surveyors and survey teams to use.
Data from the 2011 Tohoku Earthquake Tsunami Joint Survey Group, release 20120330, http://www.coastal.jp/ttjt/The release date is important because we have been checked and modified the data set since May 2011, continuously.