Abstract
The 2011 off Pacific coast of Tohoku earthquake and tsunami disaster devastated the coastline of the Tohoku region, generating an enormous amount of disaster debris. In the aftermath, it was necessary for disaster debris management to estimate the amount of debris generated since the emergency response phase. The purpose of this study was to estimate the actual amount of disaster debris generated by the tsunami, which was done by calculating the number of households damaged by tsunami inundation using the computation results of aftermath tsunami inundation. Total tsunami debris amounts in the stricken areas were estimated by multiplying the per unit generation debris taking damage to housing into consideration, and the calculated number of damaged households. As a result, the total amount of tsunami debris along the Pacific coast of the Tohoku region was estimated to be 27.1 million tons. In order to recover environmental human security for those residing in the aftermath, the establishment of tsunami debris management that can operate strategy planning and policy making is crucial.
