Issue |
E3S Web Conf.
Volume 604, 2025
The 4th International Conference on Disaster Management (The 4th ICDM 2024)
|
|
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Article Number | 14001 | |
Number of page(s) | 6 | |
Section | Seismic and Tsunami Disaster Management And Mitigation | |
DOI | https://doi.org/10.1051/e3sconf/202560414001 | |
Published online | 16 January 2025 |
Preliminary study site characterization using HVSR microtremor in West Bandung Basin
1 Department of Geophysics, University of Padjadjaran, Sumedang, Indonesia
2 Research Center for Geological Disaster, National Research and Innovation Agency, Central Jakarta, Indonesia
* Corresponding author: gitafitry71@gmail.com
Site characteristic become crucial factor in seismic hazard assessment correspond to the site response of earthquake motions. This study investigates site characterization in the western part of the Bandung Basin using the Horizontal-to-Vertical Spectral Ratio (HVSR) method. HVSR analysis was applied to the Rayleigh wave microtremor data that was conducted at observation sites i.e: Baros, Cibeber, Batujajar, and Giriasih. The analysis results revealed some soil parameters i.e: dominant period (Td) values ranging from 0.23 to 0.43 seconds, S-wave velocity structure down to a depth of 30 (Vs30) in a range of 173.25 m/s in Cibeber to the highest was 281.76 m/s in Baros. The result of Vs30 analysis were used to classify local site which is Baros site can be classified into the stiff soil (SD) category, Cibeber and Batujajar belong to the soft soil (SC) category, and Giriasih is classified as very soft soil (SE). The findings of this study provide valuable information for seismic hazard assessment, seismic site classification, and earthquake-resistant structural design in the western part of the Bandung Basin.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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