Abstract
This paper aims to investigate the dynamics of fire spreads and their spread ranges following Tsunami caused by the 2011 off the Pacific coast of Tohoku Earthquake based on the survey of the affected areas and to clarify the actual firefighting activities of fire brigades and their activity obstacles by interviews with staffs of some Fire Departments.
Firefighting activities were organized and classified using KJ method. And based on the result of these analyses, factors of firefighting activity obstacles were specified and structured as difficulties in moving, securing water sources, and spraying of water at devastated area by Tsunami. And it became clear that Tsunami fires spread rapidly while fire fighters evacuated from dangerous area to avoid another Tsunami.
