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

This study aims to examine risk perception and social vulnerability of two coastal communities in NTT namely Borokanda and Mautapaga. A quantitative method was applied to achieve the aim of this study. A primary dataset was collected through a structured questionnaire, which was responded to by a total of 110 households in these coastal communities. The differences between the coastal communities of Borokanda and Mautapaga, 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 knowledge inherited from older generations. However, such indicators do not impact the differences between these coastal communities on social vulnerability and risk perception. A high score of social vulnerability index by the coastal communities of Borokanda and Mautapaga has been identified as the root cause of the low level of risk perception..