311 tsunami height and flood map

 The maximum observed tsunami height of 311 was 21.1 m, and the maximum observed tsunami runup height was 43.3 m.


Tsunami Run-up height

 Tsunami waves run-up hills after its reach of sea shore.



http://www2.ttcn.ne.jp/honkawa/4363b.html

http://www.sms-tsunami-warning.com/pages/runup-inundation

 The followings picutures are example flood maps at 13m height flood. You can check whether your places are safe or not.

Flood maps
http://flood.firetree.net/?ll=35.9391,139.8560&z=9&m=13