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Investigation of Sediment Layer Thickness Estimation at Bengkulu University Hospital Based on Microtremor Data

JURNAL GEOCELEBES · Vol. 8 No. 1 (2024) · pp. 1–10

DOI
10.20956/geocelebes.v8i1.28144
ISSN
2579-5546, 2579-5821
Published
2024-04-01
Publisher
Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar
Language
en

Abstract

Bengkulu is the capital of Bengkulu Province and is located in the subduction zone between the Eurasian and Indo-Australian plates. Bengkulu is also close to the major faults of Sumatra, namely the Musi fault, the Ketahun fault, and the Manna fault. Therefore, regional planning and infrastructure development for earthquake mitigation is necessary. The purpose of this study is to estimate the thickness of the sedimentary layers in the construction zone of Bengkulu Hospital during the earthquake attenuation phase. This study is conducted by surface geological analysis using the HVSR method; data analysis using microtremor data. The microtremor data were analyzed using the HVSR method to obtain the amplification value (A0) and the dominant frequency (f0). HVSR analysis gave dominant frequency (f0) values from 5.1 to 5.8 Hz, amplification (A0) from 1.64 to 5.91 times, and dominant period (T0) from 1.49 to 2.81 seconds. The values of A0, f0, T0 are interpreted with reference to the literature and surface geology as a moderate risk of seismic vulnerability, characterized by moderate to weak sedimentation and moderate amplification values.

Keywords

Collaboration network of the authors

17 authors · 45 co-authorship links · 4 across different organisations

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  • University of Bengkulu
  • Universitas Syiah Kuala
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Muchammad FaridUniversity of Bengkulu4
Refrizon RefrizonUniversity of Bengkulu3
Nurul Ilmi RahmawatiUniversity of Bengkulu2
Aisyah Cindy Phylia PutriUniversity of Bengkulu2
Muhammad Rifqi RabbaniUniversity of Bengkulu2
Budi HarliantoUniversity of Bengkulu2
Arya Putra AnggiUniversity of Bengkulu2
Suhendra SuhendraUniversity of Bengkulu1
Khairun NazliUniversitas Syiah Kuala1
Halauddin HalauddinUniversity of Bengkulu1
Olga TriutamiAffiliation unknown1
RefrizonAffiliation unknown1
M. FaridAffiliation unknown1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/geocelebes/oai, first harvested 3 Nov 2026, last seen 8 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en">Investigation of Sediment Layer Thickness Estimation at Bengkulu University Hospital Based on Microtremor Data</dc:title>
	<dc:creator xml:lang="en">Al Ansory, Andre Rahmat</dc:creator>
	<dc:creator xml:lang="en">Raihana, Hana</dc:creator>
	<dc:creator xml:lang="en">Farid, M</dc:creator>
	<dc:creator xml:lang="en">Hadi, Arif Ismul</dc:creator>
	<dc:subject xml:lang="en">A0</dc:subject>
	<dc:subject xml:lang="en">f0</dc:subject>
	<dc:subject xml:lang="en">micotremor</dc:subject>
	<dc:subject xml:lang="en">sedimentary rocks</dc:subject>
	<dc:subject xml:lang="en">T0</dc:subject>
	<dc:description xml:lang="en">Bengkulu is the capital of Bengkulu Province and is located in the subduction zone between the Eurasian and Indo-Australian plates. Bengkulu is also close to the major faults of Sumatra, namely the Musi fault, the Ketahun fault, and the Manna fault. Therefore, regional planning and infrastructure development for earthquake mitigation is necessary. The purpose of this study is to estimate the thickness of the sedimentary layers in the construction zone of Bengkulu Hospital during the earthquake attenuation phase. This study is conducted by surface geological analysis using the HVSR method; data analysis using microtremor data. The microtremor data were analyzed using the HVSR method to obtain the amplification value (A0) and the dominant frequency (f0). HVSR analysis gave dominant frequency (f0) values from 5.1 to 5.8 Hz, amplification (A0) from 1.64 to 5.91 times, and dominant period (T0) from 1.49 to 2.81 seconds. The values of A0, f0, T0 are interpreted with reference to the literature and surface geology as a moderate risk of seismic vulnerability, characterized by moderate to weak sedimentation and moderate amplification values.</dc:description>
	<dc:publisher xml:lang="en">Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar</dc:publisher>
	<dc:date>2024-04-01</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.unhas.ac.id/index.php/geocelebes/article/view/28144</dc:identifier>
	<dc:identifier>10.20956/geocelebes.v8i1.28144</dc:identifier>
	<dc:source xml:lang="en">JURNAL GEOCELEBES; Vol. 8 No. 1: April 2024; 1 - 10</dc:source>
	<dc:source>2579-5546</dc:source>
	<dc:source>2579-5821</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://journal.unhas.ac.id/index.php/geocelebes/article/view/28144/11383</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2023 JURNAL GEOCELEBES</dc:rights>
</oai_dc:dc>