Abstract
The article presents a method for quantifying social vulnerability to natural hazards in Norwegian municipalities. In the analysis, a large number of variables that each measures a facet of a municipality's susceptibility to a potential hazard are used. Using factor analysis, the information in the variables is reduced to a smaller number of factors and socioeconomic and built environment vulnerability scores for each Norwegian municipality are calculated. The resulting scores in the Socioeconomic Vulnerability Index and Built Environment Index are mapped for each municipality. The results show that there are pronounced regional differences: municipalities with high socioeconomic vulnerability cluster in the northern half of Norway and parts of the south-east. The least vulnerable region is south-western Norway. Built environment vulnerability is highest in densely populated areas. By indicating municipalities with a high level of vulnerability, the method presented in this article is a useful tool in identifying regions which are likely to face significant challenges in coping with a large-scale event. The results can be used in, for example, planning mitigation efforts against extreme weather events, which are likely to be more frequent and severe in the future due to climate change.
Published Version
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