Melola Discovery

← Melola Discovery

Jurnal SINTA 1

Site Response Characteristics of Simeulue Island, Indonesia as Inferred from H/V Spectral Ratio of Ambient Noise Records

Journal of Mathematical and Fundamental Sciences · Vol. 48 No. 2 (2016) · hlm. 130–142

DOI
10.5614/j.math.fund.sci.2016.48.2.4
ISSN
2338-5510, 2337-5760
Terbit
2016-08-28
Penerbit
Directorate for Research and Innovation (DRI) ITB
Bahasa
eng

Abstrak

Simeulue Island is an outer island arc off west of the Sumatra Island. The Island is located close to the interface of the subduction zone between Indo-Australian and Eurasian Plates. Seismic activities around the Island included devastating megathrust earthquakes, such as 2004 MW 9.2 Sumatra-Andaman and 2005 MW 8.7 Nias earthquakes. We investigate the site response characteristics using Horizontal-to-Vertical (H/V) Spectral Ratio method to the continuous ambient noise records from eight broadband seismometers. From the calculation, we generally observe strong peak of H/V spectral ratio which is caused by the strong impedance contrast at these area. However, sites BATU, LABU and DEHI show relatively flat H/V spectral ratio curves that caused by lack of sharp impedance contrast beneath the site. We also observe multiple peaks at several sites that may indicate the presence of a more highly weathered soil/clay layer on top of a more compact medium. H/V peak frequencies, which shows fundamental frequencies resonance of soil sites, generally are observed at range about 2.0 - 16.4 Hz. From the observed H/V spectral ratio, we suggest that the strong impedance contrasts may occur on the shallow part of the medium at 2 up to15 m depth.

Kata kunci

Jaringan kolaborasi para penulis

16 penulis · 47 tautan kepenulisan bersama · 24 lintas organisasi

Arahkan kursor atau ketuk sebuah nama untuk menyorot rekan penulisnya. Klik dua kali untuk membuka halaman penulis.

  • Indonesian Institute of Sciences
  • National Research and Innovation Agency
  • Meteorological, Climatological, And Geophysical Agency
  • Universitas Gadjah Mada
  • University of Bengkulu
  • Afiliasi tidak diketahui
  • Organisasi berbeda
  • Organisasi sama
  • Afiliasi tidak diketahui
  • Garis lebih tebal = lebih banyak artikel bersama · lingkaran lebih besar = lebih banyak artikel
Tampilkan sebagai tabel
Rekan penulisOrganisasiArtikel bersama
Gumilar Utamas NugrahaIndonesian Institute of Sciences2
Rachmat Fajar LubisIndonesian Institute of Sciences2
N. SugiantoUniversity of Bengkulu1
Muhammad SubektiNational Research and Innovation Agency1
Agung SatriyoNational Research and Innovation Agency1
W. SuryantoUniversitas Gadjah Mada1
Sucipta SuciptaNational Research and Innovation Agency1
Jajat JatnikaMeteorological, Climatological, And Geophysical Agency1
R. SwastikaraniMeteorological, Climatological, And Geophysical Agency1
Dadan Dani WardhanaIndonesian Institute of Sciences1
Karit Lumban GaolIndonesian Institute of Sciences1
Karit Lumban GoalAfiliasi tidak diketahui1

Afiliasi berasal dari OpenAlex; metadata OAI-PMH jurnal tidak memuatnya. Penulis tanpa ID OpenAlex dicocokkan berdasarkan nama, sehingga dua orang bisa tergabung atau satu orang bisa terpisah.

Sumber metadata: OAI-PMH (metadata jurnal) https://journals.itb.ac.id/index.php/jmfs/oai, pertama di-harvest 9 Nov 2026, terakhir terlihat 9 Nov 2026.
Metadata asli (oai_dc) 
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en-US">Site Response Characteristics of Simeulue Island, Indonesia as Inferred from H/V Spectral Ratio of Ambient Noise Records</dc:title>
	<dc:creator>Anggono, Titi</dc:creator>
	<dc:creator>Syuhada, Syuhada</dc:creator>
	<dc:creator>Hananto, Nugroho Dwi</dc:creator>
	<dc:creator>Handayani, Lina</dc:creator>
	<dc:subject xml:lang="en-US">ambient noise</dc:subject>
	<dc:subject xml:lang="en-US">amplification factor</dc:subject>
	<dc:subject xml:lang="en-US">fundamental frequency</dc:subject>
	<dc:subject xml:lang="en-US">H/V spectral ratio</dc:subject>
	<dc:subject xml:lang="en-US">site response</dc:subject>
	<dc:subject xml:lang="en-US">Simeulue Island</dc:subject>
	<dc:description xml:lang="en-US">Simeulue Island is an outer island arc off west of the Sumatra Island. The Island is located close to the interface of the subduction zone between Indo-Australian and Eurasian Plates. Seismic activities around the Island included devastating megathrust earthquakes, such as 2004 MW 9.2 Sumatra-Andaman and 2005 MW 8.7 Nias earthquakes. We investigate the site response characteristics using Horizontal-to-Vertical (H/V) Spectral Ratio method to the continuous ambient noise records from eight broadband seismometers. From the calculation, we generally observe strong peak of H/V spectral ratio which is caused by the strong impedance contrast at these area. However, sites BATU, LABU and DEHI show relatively flat H/V spectral ratio curves that caused by lack of sharp impedance contrast beneath the site. We also observe multiple peaks at several sites that may indicate the presence of a more highly weathered soil/clay layer on top of a more compact medium. H/V peak frequencies, which shows fundamental frequencies resonance of soil sites, generally are observed at range about 2.0 - 16.4 Hz. From the observed H/V spectral ratio, we suggest that the strong impedance contrasts may occur on the shallow part of the medium at 2 up to15 m depth.</dc:description>
	<dc:publisher xml:lang="en-US">Directorate for Research and Innovation (DRI) ITB</dc:publisher>
	<dc:date>2016-08-28</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://journals.itb.ac.id/index.php/jmfs/article/view/1398</dc:identifier>
	<dc:identifier>10.5614/j.math.fund.sci.2016.48.2.4</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Mathematical and Fundamental Sciences; Vol. 48 No. 2 (2016); 130-142</dc:source>
	<dc:source>2338-5510</dc:source>
	<dc:source>2337-5760</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journals.itb.ac.id/index.php/jmfs/article/view/1398/1187</dc:relation>
</oai_dc:dc>