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Evaluation of Seismic Vulnerability Index and Soil Classification in Sleman Regency Based on Microtremor Analysis and the HVSR Method

Rekayasa · Vol. 21 No. 1 (2023) · hlm. 45–52

DOI
10.15294/rekayasa.v21i1.9959
ISSN
2527-6964, 0216-6631
Terbit
2023-07-31
Penerbit
Universitas Negeri Semarang
Bahasa
eng

Abstrak

Kalasan District and Ngemplak District, located in Sleman Regency, Yogyakarta, are areas with significant seismic risk due to the subduction of the Indo-Australian and Eurasian plates south of Java Island. To support disaster mitigation and land-use planning, it is essential to understand the local geological structure and soil dynamic response. This study aims to evaluate the seismic vulnerability and soil classification using the Horizontal to Vertical Spectral Ratio (HVSR) method and Rayleigh wave ellipticity inversion modeling. Microtremor measurements were conducted at 27 points distributed across both districts. The HVSR method was used to obtain the dominant frequency and amplification values, while the ellipticity inversion of Rayleigh waves was employed to estimate the shear-wave velocity profile and calculate Vs₃₀ values. The results show that the dominant frequency ranges from 0.713 Hz to 18.006 Hz, amplification values range from 0.569 to 4.193, and the seismic vulnerability index ranges from 0.010 to 12.060. Based on these parameters, Sleman Regency is generally categorized as having low to moderate seismic damage potential due to the relatively low amplification and vulnerability index. The Vs₃₀ values indicate a variation in soil site classes, namely medium-density soil (SD) and very dense soil (SC). These findings provide essential data for seismic microzonation, contributing to more resilient urban development strategies.

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  • State University of Semarang
  • Sunan Kalijaga State Islamic University Yogyakarta
  • Meteorological, Climatological, And Geophysical Agency
  • Yogyakarta State University
  • Bandung Institute of Technology
  • Universitas Gadjah Mada
  • Diponegoro University
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Rekan penulisOrganisasiArtikel bersama
Billqis El FarsiyyiAfiliasi tidak diketahui6
Juwita Nur SembriMeteorological, Climatological, And Geophysical Agency3
Desi Mustami Limayukha Desi Mustami LimayukhaAfiliasi tidak diketahui3
Elsa Fadlika Widyantari Elsa Fadlika WidyantariAfiliasi tidak diketahui3
Rahmania Sofyana Ulya Rahmania Sofyana UlyaAfiliasi tidak diketahui3
Billqis El Farsiyyi Bilqis El FarsiyyiState University of Semarang3
Ilqia Rahma Ilqia RahmaState University of Semarang3
Andi AndiSunan Kalijaga State Islamic University Yogyakarta2
SUTIKNOState University of Semarang2
Hamzah LatiefBandung Institute of Technology2
Dian Susri NurhaciMeteorological, Climatological, And Geophysical Agency2
Fani RohmiasihSunan Kalijaga State Islamic University Yogyakarta1
Budi AstutiState University of Semarang1
Adam ArdiansyahState University of Semarang1
Aryono AdhiState University of Semarang1
SARWIState University of Semarang1
CindiwatiState University of Semarang1
Farikha Qurotun UyunState University of Semarang1
SupriyadiState University of Semarang1
Alif Aulia BarorohState University of Semarang1
SupriyadiState University of Semarang1
M. Aryono AdhiState University of Semarang1
Budi Eka NurcahyaUniversitas Gadjah Mada1
Alifa Tri HandayaniState University of Semarang1
Enesty HerdiyantiState University of Semarang1
Rahma Darin AnisaState University of Semarang1
Zeni RahmawatiSunan Kalijaga State Islamic University Yogyakarta1
Thaqibul Fikri NiyartamaSunan Kalijaga State Islamic University Yogyakarta1
Khafidh Nur AzizYogyakarta State University1
Yosaphat SumardiYogyakarta State University1
Denny DarmawanYogyakarta State University1
Rina Dwi IndrianaDiponegoro University1
Danastri Lintang Pitaloka TampubolonNational Central University1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/journals/rekayasa/oai, pertama di-harvest 6 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Evaluation of Seismic Vulnerability Index and Soil Classification in Sleman Regency Based on Microtremor Analysis and the HVSR Method</dc:title>
	<dc:creator xml:lang="en">Fadlika Widyantari, Elsa </dc:creator>
	<dc:creator xml:lang="en">Aryono Adhi, Mochamad </dc:creator>
	<dc:creator xml:lang="en">Rahma, Ilqia</dc:creator>
	<dc:creator xml:lang="en">Budi Wibowo, Nugroho</dc:creator>
	<dc:creator xml:lang="en">Mustami' Limayukha, Desi</dc:creator>
	<dc:creator xml:lang="en">El Farsiyyi, Bilqis</dc:creator>
	<dc:creator xml:lang="en">Sofyana Ulya, Rahmania</dc:creator>
	<dc:subject xml:lang="en">earthquakes</dc:subject>
	<dc:subject xml:lang="en">geological</dc:subject>
	<dc:subject xml:lang="en"> inversion modelling</dc:subject>
	<dc:subject xml:lang="en">natural disasters</dc:subject>
	<dc:subject xml:lang="en">seismic susceptibility </dc:subject>
	<dc:description xml:lang="en">Kalasan District and Ngemplak District, located in Sleman Regency, Yogyakarta, are areas with significant seismic risk due to the subduction of the Indo-Australian and Eurasian plates south of Java Island. To support disaster mitigation and land-use planning, it is essential to understand the local geological structure and soil dynamic response. This study aims to evaluate the seismic vulnerability and soil classification using the Horizontal to Vertical Spectral Ratio (HVSR) method and Rayleigh wave ellipticity inversion modeling. Microtremor measurements were conducted at 27 points distributed across both districts. The HVSR method was used to obtain the dominant frequency and amplification values, while the ellipticity inversion of Rayleigh waves was employed to estimate the shear-wave velocity profile and calculate Vs₃₀ values. The results show that the dominant frequency ranges from 0.713 Hz to 18.006 Hz, amplification values range from 0.569 to 4.193, and the seismic vulnerability index ranges from 0.010 to 12.060. Based on these parameters, Sleman Regency is generally categorized as having low to moderate seismic damage potential due to the relatively low amplification and vulnerability index. The Vs₃₀ values indicate a variation in soil site classes, namely medium-density soil (SD) and very dense soil (SC). These findings provide essential data for seismic microzonation, contributing to more resilient urban development strategies. </dc:description>
	<dc:publisher xml:lang="en">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2023-07-31</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:type xml:lang="en">Peer-reviewed Article</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journal.unnes.ac.id/journals/rekayasa/article/view/9959</dc:identifier>
	<dc:identifier>10.15294/rekayasa.v21i1.9959</dc:identifier>
	<dc:source xml:lang="en">Rekayasa; Vol. 21 No. 1 (2023); 45-52</dc:source>
	<dc:source>2527-6964</dc:source>
	<dc:source>0216-6631</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/journals/rekayasa/article/view/9959/5395</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2023 Rekayasa : Jurnal Penerapan Teknologi dan Pembelajaran</dc:rights>
</oai_dc:dc>