Extreme Waves and Coastal Erosion Hazards, Communities Risk Perception and Social Vulnerability: Analysis of Two Villages in East Nusa Tenggara (NTT)

Abstract

This study aims to examine risk perception and social vulnerability of two coastal communities in NTT namely Borokanda and Mautapaga.  A quantitativemethod was applied to achieve the aim of this study. A primary dataset was collected througha structured questionnaire, which was responded to by a total of 110 households in thesecoastal communities. The differences between the coastal communities of Borokanda andMautapaga, in social vulnerability and risk perception was analysed statistically using the Mann-Whitney U test.The results show that the coastal communities of Borokanda and Mautapaga have been identified to be significantly different in ethnicity, disaster experience, and disaster knowledgeinherited from older generations. However, such indicators do not impact the differencesbetween these coastal communities on social vulnerability and risk perception. A high scoreof social vulnerability index by the coastal communities of Borokanda and Mautapaga hasbeen identified as the root cause of the low level of risk perception.