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2. UNISDR, World Conference Adopts New International Framework for Disaster Risk Reduction After Marathon NegotiationS – Press Release 18 March 2015 – UNISDR 2015/19.
3. K. Yamaguchi, Y. Shimizu, et al., Japan Descriptive Geographical Memorandum: Hokkaido and Tohoku II, Asakurashoten (in Japanese), 2011.
4. National Police Agency, The Damage of the Great East Japan Earthquake 2011 and Measures by Police (in Japanese). 〈http://www.npa.go.jp/archive/keibi/biki/higaijokyo.pdf〉 May 8, 2015.
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