Geospatial Assessment of Coseismic Landslides in Baturagung Area

Type of content
Journal Article
Publisher's DOI/URI
Thesis discipline
Degree name
Publisher
Forum Geografi
Journal Title
Journal ISSN
Volume Title
Language
Date
2016
Authors
Saputra, A.
Sartohadi, J.
Sri Hadmoko, D.
Gomez, C.
Abstract

Java, the most densely populated island in Indonesia, is located on top of the most seismically active areas in Southeast Asia: the Sunda Megathrust. This area is frequently hit by strong earthquake. More than 3,300 M>5 earthquakes occurred between 1973-2014. The wide range of mountainous areas and high intensity of rainfall, make several part of the island one of the most exposed regions for coseismic landslides such as Baturagung area, the Southeast mountainous area of Yogyakarta Province. An integrated method between RS and GIS was used to conduct the vulnerability assessment due to the lack of the site specific slope instability analysis and coseismic landslides data. The seismic zonation of Baturagung area was obtained based on the analysis of Kanai attenuation. The geologic information was extracted using remote sensing interpretation based on the 1:100,000 geologic map of Yogyakarta and geomorphologic map of Baturagung area as well. The coseismic landslide hazard assessment has been estimated using scoring analysis in the GIS platform proposed by Mora and Vahrson (1993) with several modifications. The accomplished coseismic landslide hazard map shows medium hazard coverage in the eastern areas, in the upper slope of Baturagung area, which consists of Semilir Formation. The result provides a distinct description of coseismic landslides hazard distribution in Batuaragung area. However, it should only be the preliminary assessment of the site specific investigation especially on valuable area or asset.

Description
Citation
Saputra, A., Sartohadi, J., Sri Hadmoko, D., Gomez, C. (2016) Geospatial Assessment of Coseismic Landslides in Baturagung Area. Forum Geografi, 29(2), pp. 99-113.
Keywords
coseismic landslide hazard, geographic information system (GIS), Baturagung, hazard assessment
Ngā upoko tukutuku/Māori subject headings
ANZSRC fields of research
Fields of Research::37 - Earth sciences::3709 - Physical geography and environmental geoscience::370903 - Natural hazards
Fields of Research::40 - Engineering::4013 - Geomatic engineering::401302 - Geospatial information systems and geospatial data modelling
Fields of Research::46 - Information and computing sciences::4609 - Information systems::460905 - Information systems development methodologies and practice
Fields of Research::37 - Earth sciences::3706 - Geophysics::370609 - Seismology and seismic exploration
Rights
Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)