「低頻度・巨大損失事象」に係わるリスク学（分析）の課題― 巨大複合災害（大地震動＋巨大津波＋福島原子炉溶融事故）としての東日本大震災から学ぶ

抄録

The chain of catastrophic events (the 2011 disaster) raised a number of critical questions associated with the methodological issues of “risk analysis” in managing the emergent characteristics of low-frequency and high-consequence risks. In this paper, salient methodological issues in responding to such a surprise and complex risk event are explored in terms of “limit of scientific risk assessment”, “deficit in risk governance” and “insufficient risk communication” taking account of the lessons learned from the 2011 disaster.