Disaster Readiness and Risk Reduction Assessing Risks To reduce risk, most of the focus should be on reducing Vulnerability and the First Step is by understanding the element at risk exposed to each type of hazard. Risk Model: Risk = Hazard x Exposure x Vulnerability Exposed Elements refer to the number of people and the number of structures within the exposed area. Exposure is the degree to which the element at risk are likely to experience hazard events of different magnitude. Sectors of the society are more vulnerable to disaster than others because of the different factors contributing to its vulnerability, such as poverty, livelihoods, cultural beliefs, equity, gender and weak social groups. Physical Exposure: PhExp = Hazard x Exposure Physical - exposed affected area Hazard - probability of occurrence of an event at a given magnitude Exposure - total population living in the area Useful Indicators of the Possible Impacts ...
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