Public Perception of Seismic Risk in Probabilistic Seismic Hazard Map

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  • FUJIMOTO Kazuo
    Faculty of Risk and Crisis Management, Chiba Institute of Science
  • TOZUKA Tadashi
    Faculty of Risk and Crisis Management, Chiba Institute of Science

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Other Title
  • 確率論的地震ハザードマップのリスク情報に対するリスク認知特性
  • カクリツロンテキ ジシン ハザードマップ ノ リスク ジョウホウ ニ タイスル リスク ニンチ トクセイ

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The purpose of this paper is to evaluate seismic risk perception of lay people in Japan. We examine the risk perception on earthquake shaking by asking the rating scale of risk perception against seismic risk information on probabilistic seismic hazard map to explore how risk is perceived. Our results indicate that individuals tend to overestimate the degree of earthquake risk in near future, e.g., time period within 10 years. We examine the relation between the risk perception and several individual factors, such as gender, age and region, to explore how risk perceptions are affected by the factors. The results indicate that female risk perception is stronger than male, and younger people tend to overestimate the seismic risk exceeding about 10% probability and underestimate the risk less than about 10% probability compared to older people.

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