Preliminary study site characterization using HVSR microtremor in West Bandung Basin

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 applie...

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Main Authors: Fitri Yulianto Gita, Saimima Wakano Qashdina, Widi Santoso Eko, Ridwan Mohamad, Santoso Budy
Format: Article
Language:English
Published: EDP Sciences 2025-01-01
Series:E3S Web of Conferences
Online Access:https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/04/e3sconf_icdm2024_14001.pdf
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author Fitri Yulianto Gita
Saimima Wakano Qashdina
Widi Santoso Eko
Ridwan Mohamad
Santoso Budy
author_facet Fitri Yulianto Gita
Saimima Wakano Qashdina
Widi Santoso Eko
Ridwan Mohamad
Santoso Budy
author_sort Fitri Yulianto Gita
collection DOAJ
description 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.
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institution Kabale University
issn 2267-1242
language English
publishDate 2025-01-01
publisher EDP Sciences
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series E3S Web of Conferences
spelling doaj-art-4051fd0ffbde40d8a2380737a0b853bb2025-02-05T10:47:53ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016041400110.1051/e3sconf/202560414001e3sconf_icdm2024_14001Preliminary study site characterization using HVSR microtremor in West Bandung BasinFitri Yulianto Gita0Saimima Wakano Qashdina1Widi Santoso Eko2Ridwan Mohamad3Santoso Budy4Department of Geophysics, University of PadjadjaranDepartment of Geophysics, University of PadjadjaranResearch Center for Geological Disaster, National Research and Innovation AgencyResearch Center for Geological Disaster, National Research and Innovation AgencyDepartment of Geophysics, University of PadjadjaranSite 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.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/04/e3sconf_icdm2024_14001.pdf
spellingShingle Fitri Yulianto Gita
Saimima Wakano Qashdina
Widi Santoso Eko
Ridwan Mohamad
Santoso Budy
Preliminary study site characterization using HVSR microtremor in West Bandung Basin
E3S Web of Conferences
title Preliminary study site characterization using HVSR microtremor in West Bandung Basin
title_full Preliminary study site characterization using HVSR microtremor in West Bandung Basin
title_fullStr Preliminary study site characterization using HVSR microtremor in West Bandung Basin
title_full_unstemmed Preliminary study site characterization using HVSR microtremor in West Bandung Basin
title_short Preliminary study site characterization using HVSR microtremor in West Bandung Basin
title_sort preliminary study site characterization using hvsr microtremor in west bandung basin
url https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/04/e3sconf_icdm2024_14001.pdf
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AT saimimawakanoqashdina preliminarystudysitecharacterizationusinghvsrmicrotremorinwestbandungbasin
AT widisantosoeko preliminarystudysitecharacterizationusinghvsrmicrotremorinwestbandungbasin
AT ridwanmohamad preliminarystudysitecharacterizationusinghvsrmicrotremorinwestbandungbasin
AT santosobudy preliminarystudysitecharacterizationusinghvsrmicrotremorinwestbandungbasin