Preliminary identification of earthquake triggered multi-hazard and risk in Pleret Sub-District (Yogyakarta, Indonesia)
| العنوان: | Preliminary identification of earthquake triggered multi-hazard and risk in Pleret Sub-District (Yogyakarta, Indonesia) |
|---|---|
| المؤلفون: | Junun Sartohadi, Peyman Zawar-Reza, I. Delikostidis, Danang Sri Hadmoko, Christopher Gomez, Aditya Saputra |
| المصدر: | Geo-spatial Information Science, Vol 24, Iss 2, Pp 256-278 (2021) |
| بيانات النشر: | Taylor & Francis Group, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | 010504 meteorology & atmospheric sciences, Java, liquefaction, Geography, Planning and Development, 0211 other engineering and technologies, Mathematical geography. Cartography, 02 engineering and technology, GA1-1776, 01 natural sciences, Computers in Earth Sciences, outcrop study, 021101 geological & geomatics engineering, 0105 earth and related environmental sciences, computer.programming_language, QB275-343, business.industry, Environmental resource management, Java island, coseismic landslide, Multi hazard, Identification (information), Geography, Earthquake hazard, business, computer, earthquake multi-hazard and risk, Geodesy |
| الوصف: | Yogyakarta is one of the large cities in Central Java, located on Java Island, Indonesia. The city, and the Pleret sub-district, where the study has taken place, is prone to earthquake hazards, because it is close to several seismically active zones, such as the Sunda Megathrust and the active fault known as the Opak Fault. Since a devastating earthquake of 2006, the population of the Pleret sub-district has increased significantly. Thus, the housing demand has increased, and so is the pace of low-cost housing that does not meet earthquake-safety requirements, and furthermore are often located on unstable slopes. The local alluvial material covering a jigsaw of unstable blocks and complex slope is conditions that can amplify the negative impacts of earthquakes. Within this context, this study is aiming to assess the multi-hazards and risks of earthquakes and related secondary hazards such as ground liquefaction, and coseismic landslides. To achieve this, we used geographic information systems and remote sensing methods supplemented with outcrop study and existing seismic data to derive shear-strain parameters. The results have revealed the presence of numerous uncharted active faults with movements visible from imagery and outcrops. show that the middle part of the study area has a complex geological structure, indicated by many unchartered faults in the outcrops. Using this newly mapped blocks combined with shear strain data, we reassessed the collapse probability of buildings that reach level >0.75 near the Opak River, in central Pleret sub-district. Classifying the buildings and from population distribution, we could determine that the highest risk was during nighttime as the buildings susceptible to fall are predominantly housing buildings. The secondary hazards follow a slightly different distribution with a concentration of risks in the West. |
| اللغة: | English |
| تدمد: | 1993-5153 1009-5020 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f16d262fc1e89ab5a6aef5050db2a6bf https://doaj.org/article/03073ae85b204da682c5969872fb24fd |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....f16d262fc1e89ab5a6aef5050db2a6bf |
| قاعدة البيانات: | OpenAIRE |
PDF full text from Publisher | تدمد: | 19935153 10095020 |
|---|