Site-Specific Analysis to Investigate Response and Liquefaction Potential during the Megathrust Earthquake at Banten Province Indonesia

Muhammad Fatih Qodri; Veronica Diana Anis Anggorowati; Lindung Zalbuin Mase

doi:10.4186/ej.2022.26.9.1

Site-Specific Analysis to Investigate Response and Liquefaction Potential during the Megathrust Earthquake at Banten Province Indonesia

Authors

Muhammad Fatih Qodri Institut Teknologi Nasional Yogyakarta
Veronica Diana Anis Anggorowati Institut Teknologi Nasional Yogyakarta
Lindung Zalbuin Mase University of Bengkulu

DOI:

https://doi.org/10.4186/ej.2022.26.9.1

Keywords:

megathrust, earthquake, seismic response, attenuation model, liquefaction potential

Abstract

The megathrust earthquake affiliated with several activities in the Java subduction zone is predicted to be the main trigger of the earthquake in Indonesia which is located in the world ring of fire. Therefore, this study aims to determine the seismic soil response and investigate the seismic liquefaction potential in the specific area in Banten Province. A computational simulation was performed to analyze soil response and earthquake data from Pacific Earthquake Engineering Research (PEER) database were adjusted based on the attenuation model. The results show that the site passes through amplification up to two times and the peak of spectral acceleration occurs at a low-medium period, namely 0.3 seconds. This indicated that the resonance effect can occur in buildings with up to 3 floors. Furthermore, the site dominated by sandy soil has the potential to undergo liquefaction, especially once peak ground acceleration reaches 0.1g. This investigation shows significant progressive results for understanding and practice related to the assessment of seismic site response and preliminary soil liquefaction study.

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Author Biographies

Muhammad Fatih Qodri
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Department of Geological Engineering, Faculty of Mineral Technology, Institut Teknologi Nasional Yogyakarta, Yogyakarta 55281, Indonesia

Veronica Diana Anis Anggorowati
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Department of Civil Engineering, Faculty of Civil Engineering and Planning, Institut Teknologi Nasional Yogyakarta, Yogyakarta 55281, Indonesia

Lindung Zalbuin Mase
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Department of Civil Engineering, Faculty of Engineering, University of Bengkulu, Bengkulu 38371, Indonesia

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Published In

Vol 26 No 9, Sep 30, 2022

How to Cite

[1]

M. F. Qodri, V. D. A. Anggorowati, and L. Z. Mase, “Site-Specific Analysis to Investigate Response and Liquefaction Potential during the Megathrust Earthquake at Banten Province Indonesia”, Eng. J., vol. 26, no. 9, pp. 1-10, Sep. 2022.

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