Disaster risk analysis of Mount Bromo eruption after the 2015 eruption in Sukapura District

¹ Department Urban and Regional Planning, Brawijaya University, Jl. MT. Haryono 167, Malang, 65125, Indonesia
² Magister Urban and Regional planning, Brawijaya University, Jl. MT. Haryono 167, Malang, 65125, Indonesia
³ Department Civil Engineering, Brawijaya University, Jl. MT. Haryono 167, Malang, 65125, Indonesia

^* Corresponding author: t_tyas@ub.ac.id

Abstract

Mount Bromo is one of the most active volcanoes in East Java with a 4-5 year interval of the eruption. Its last eruption was in 2015 and is expected to erupt in 2020. The mountain is characterized as having the phreatic type of eruption, which can take months, and made Sukapura district the most seriously affected. Sukapura District is inhabited by Tengger people who strongly uphold their customs. The strong spiritual relationship between Tengger people and Mount Bromo affects the efforts to reduce the disaster risk. In anticipation of the coming eruption in 2020, a disaster risk calculation is required as the basis for disaster risk reduction. This paper examines the risks of Mount Bromo eruption disaster from the aspects of its hazards, vulnerability and community capacity. The results of risk calculation indicate that the vulnerability and capacity are the most influential aspects to the magnitude of the risks suffered by the community. The high-risk areas to prioritize are Ngadisari, Sariwani, Sapikerep, Wonokerto, Ngadirejo, and part of Jetak Village. Moderate risks include part of Kedasih village, part of Pakel Village, part of Ngadas Village, part of Jetak Village and part of Wonokerto Village. The low-risk areas include part of Ngepung Village, Sukapura Village, part of Ngadas Village and part of Wonotoro Village.