Geographic Information System and Weighting Technique for Tsunami Risk Assessment in Coastal Villages of Jember Regency, Indonesia

Jember is one of the regencies in East Java having tsunami-prone areas. Regional Disaster Management Agency (BPBD) of Jember defined six sub-districts that are vulnerable to tsunami disasters comprised of Kencong, Puger, Gumukmas, Wuluhan, Ambulu, and Tempurejo. Settlements in coastal areas are at risk of being affected by the tsunami. The residential household close to the seashore is centrally located in Kencong, Gumukmas, Puger, and Ambulu sub-district. The high density of buildings can cause economic losses and fatalities in the surrounding area when a tsunami disaster strikes. This research aims to identify and measure tsunami risk levels in all coastal villages of the Jember Regency. The research method used a quantitative approach through scoring and weighting technique, also a disaster risk matrix. Spatial analysis conduct used a geographic information system app (Arc GIS). The Arc GIS output is of several maps of hazard, vulnerability, capacity, and tsunami disaster risk in the Jember Regency Coastal Area. The research result of the tsunami disaster risk assessment showed that six villages had high risk from twelve coastal villages in Jember Regency.