Landslides Controlled Structural Geomorphological Activity on the Lembang Fault, West Java, Indonesia Murni Sulastri 1,2*, Imam A. Sadisun3, Adang Saputra1, Asep Mohamad Ishaq Shiddiq1 and Asti Gindasari Masse 4
1Geological Technology Study Program, Politeknik Energi Pertambangan Bandung, Indonesia
2 Doctoral in Geological Engineering, Faculty of Earth Sciences and Technology,
Institut Teknologi Bandung (ITB), Indonesia
3Applied Geology Research Group, Faculty of Earth Sciences and Technology,
Institut Teknologi Bandung (ITB), Indonesia
4Department of Geology Engineering, Faculty Engineering,
Univeristas Hassanudin Makasar (UNHAS), Indonesia
Abstract
The Lembang Fault is an active fault that can trigger earthquakes and landslides in the East to North Bandung region. In addition to tectonic influences, the activity of the Lembang fault is also thought to be influenced by volcanism which can affect the mechanism of fault movement. Tectonic processes play an important role in the formation of the morphology of a region. The existence of this fault has shaped the morphology of the Lembang plain in the north and formed a west-east trending hilly belt. Tectonic geomorphology is the main factor controlling the development of landforms in active tectonic areas and has a significant influence on the natural appearance of mountains and watersheds located to the east of the Lembang, Cikapundung, analysis of northwest-southeast trending geomorphological indications is used to study tectonic activity in the research area in the form of river shapes, the results of field observations in the form of elongated geomorphology, the presence of triangular pairs, lithology, joints, fault mirrors and landforms and geology of the research area support these results.
