Active Fault Analysis Through Quantitative Assessment Method in Cikapundung Sub Watershed

Authors

  • Nana Sulaksana  Faculty of Geological Engineering, Padjadjaran University, Jalan Raya Bandung-Sumedang Km.21, Jatinangor, Indonesia
  • Supriyadi  Faculty of Geological Engineering, Padjadjaran University, Jalan Raya Bandung-Sumedang Km.21, Jatinangor, Indonesia
  • Ismawan  Faculty of Geological Engineering, Padjadjaran University, Jalan Raya Bandung-Sumedang Km.21, Jatinangor, Indonesia
  • Pradnya Paramarta Raditya Rendra  Faculty of Geological Engineering, Padjadjaran University, Jalan Raya Bandung-Sumedang Km.21, Jatinangor, Indonesia
  • Murni Sulastri  Faculty of Geological Engineering, Padjadjaran University, Jalan Raya Bandung-Sumedang Km.21, Jatinangor, Indonesia

Keywords:

Active fault, IAT, Cikapundung sub-watershed

Abstract

Cikapundung sub-watershed is one of the sub-watersheds at the upper of the Citarum River adjacent to an active regional fault, Lembang Fault. Active fault is a major factor in landform control in area that affected by tectonic activity. Therefore, an approach to identify tectonic activity in the research area through quantitative analysis (morphometry) is required. The morphometric analysis used to identify Index of active tectonics (IAT) uses four parameters, namely: Asymmetry factor (Af), Ratio of valley width and valley height (Vf), Basin shape index (Bs), and Mountain front sinuosity (Smf). Based on the parameters of Index of active tectonics (IAT) , it can be concluded that 10 basins of the Cikapundung sub watershed has a class of low tectonic activity which may still be affected by the active Lembang fault. However, its existence should be noticed by the surrounding community and government, because the major earthquakes can occur anytime. In addition, the variation of Smf and Vf values caused by lithologic responses that are less resistant to weathering and erosion.

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International Journal of Scientific Research in Science and Technology

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Published

2017-08-31

Issue

Volume 3, Issue 6, July-August-2017

Section

Research Articles

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How to Cite

[1]
Nana Sulaksana, Supriyadi, Ismawan, Pradnya Paramarta Raditya Rendra, Murni Sulastri, " Active Fault Analysis Through Quantitative Assessment Method in Cikapundung Sub Watershed , International Journal of Scientific Research in Science and Technology(IJSRST), Online ISSN : 2395-602X, Print ISSN : 2395-6011, Volume 3, Issue 6, pp.147-154, July-August-2017.