Open AccessAssessment of landslide risk in the mountainous area. Case study: Bumiaji Sub-District
Author(s) -
Akhmad Rizki Ajie Prasetya,
Turniningtyas Ayu Rachmawati,
Fadly Usman
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/916/1/012009
Subject(s) - landslide , geography , hazard , geospatial analysis , natural hazard , damages , tourism , digital elevation model , risk assessment , land cover , physical geography , cartography , land use , remote sensing , geology , civil engineering , meteorology , engineering , computer security , computer science , chemistry , organic chemistry , archaeology , political science , law , geotechnical engineering
Throughout 2016-2021, there were 31 landslides that have caused physical, economic, and social damages. Bumiaji Sub-District has several tourist destinations that are potentially exposed to landslides. This study aims to create a landslide risk map in Bumiaji Sub-District. This research was conducted during the COVID-19 pandemic situation. Therefore, the data collected was secondary data obtained from Google satellite images, Google Street View, the digital elevation model from the National Geospatial Institution, and other literature reviews. The data was then analysed using a landslide risk assessment based on Perka BNPB Number 2/2012. The results of this risk analysis show that Bumiaji Sub-District is dominated by low-level risk (48%), followed by high-level risk (30%), and medium-level risk (15%). High-risk level is affected by high hazards and vulnerabilities, especially in Giripurno Village. High hazard level is affected by high intensity of rainfall, slope degree, the sensitivity of soil to erosion, and the type of land cover. High vulnerabilities are affected by physical, social, and economic aspects susceptible to losses.