RELATIONSHIP OF ESTIMATED EXPOSURE POPULATION TO HUMAN CASUALTY BASED ON ACTUAL DAMAGE OF THE 2011 TOHOKU TSUNAMI / 東日本大震災での津波による被害実態に基づく推計曝露人口と人的被害の関係
- Resource Type
- Journal Article
- Authors
- Anawat SUPPASRI; Fumihiko IMAMURA; Fumiyasu MAKINOSHIMA; Natsuki HASEGAWA; サッパシー アナワット; 今村 文彦; 牧野嶋 文泰; 長谷川 夏来
- Source
- 土木学会論文集B2(海岸工学) / Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering). 2017, 73(2)1543
- Subject
- 2011 Tohoku tsunami
building damage
damage estimates
human casualty
- Language
- Japanese
- ISSN
- 1883-8944
1884-2399
Estimation of human casualty due to tsunami provides us useful information for effective disaster prevention countermeasure. However, there is still no the method that is applicable to various areas because the estimation is strongly influenced by characteristics of the original data. The actual human casualty and building damage data caused by the 2011 Tohoku Tsunami was collected over the wide area and arranged by a fine spatial scale as small as district level. Using such data, we can avoid characteristics of the specific city that strongly influences the estimation results. The ratio of estimated exposure population and actual human casualty is defined as a damage characteristic coefficient which can be explained by the logarithmic normal distribution. The new human casualty estimation model includes the mentioned damage characteristic coefficient. The new model has border application and estimates the damage amount with a range of uncertain. The new method was applied to estimate the human casualty in two different coastal topography areas namely Kamaishi city and Sendai city in case of the 2011 tsunami and verified by comparing the estimated number of casualties with the actual number of casualties.