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Identification of Sub-Fault Zone Using Magnetotelluric Inversion (Case Study: Ketaun Fault, Lemeu Village, Lebong Regency)

JURNAL GEOCELEBES · Vol. 8 No. 2 (2024) · hlm. 132–141

DOI
10.70561/geocelebes.v8i2.34588
ISSN
2579-5546, 2579-5821
Terbit
2024-10-01
Penerbit
Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar
Bahasa
en
Lisensi
creativecommons.org/licenses/by-nc-sa/4.0

Abstrak

Lemeu Village, Lebong Regency, borders the Bukit Barisan Mountain range and is crossed by the Ketaun Fault, which causes a high level of seismic activity, so it is necessary to conduct research on the potential existence of the Ketaun sub-fault as one of the efforts to mitigate natural disasters such as earthquakes. The Magnetotelluric method utilises the earth's natural electromagnetic field, which is used to determine the distribution of resistivity in the subsurface using the ADU-07e Magnetotelluric tool with two horizontal electrical sensors (Ex, Ey) and three horizontal (Hx, Hy) and vertical (Hz) magnetic sensors and uses seven research points with an interval of 1 km. Data processing uses MAPROS software to convert data from the time domain to the frequency domain and ZONDMT2D to obtain subsurface resistivity values. The results obtained from this study are 2D magnetotelluric cross sections showing a zone with low resistivity values between research points P4 and P5 which is thought to be a new fault zone with resistivity values ranging from 1.3 – 6.1 Ωm from a depth of 2.5 km to a depth of 10 km. The zone is assumed to be a new fault that is a branch of the Ketaun fault.

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  • University of Bengkulu
  • Lampung University
  • Malikussaleh University
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Rekan penulisOrganisasiArtikel bersama
Hana RaihanaUniversity of Bengkulu10
RefrizonUniversity of Bengkulu6
Refrizon RefrizonUniversity of Bengkulu5
Olga TriutamiUniversity of Bengkulu3
Muhammad FaridUniversity of Bengkulu2
Aisyah Cindy Phylia PutriUniversity of Bengkulu2
Muhammad Rifqi RabbaniUniversity of Bengkulu2
Budi HarliantoUniversity of Bengkulu2
Arya Putra AnggiUniversity of Bengkulu2
Repal Wijaya KusumaUniversity of Bengkulu2
Yuni SetyowatiUniversity of Bengkulu2
M. FaridUniversity of Bengkulu2
Dadin Mars AbimayuUniversity of Bengkulu2
Nanang SugiantoUniversity of Bengkulu2
Sapari DwiyonoAfiliasi tidak diketahui2
Arieffin Yusuf Hakim HakimUniversity of Bengkulu2
Asy Syifa Auliya Putri RamadhaniUniversity of Bengkulu2
Nurul ApriyantiUniversity of Bengkulu2
M. FaridAfiliasi tidak diketahui1
Samuel SiagianUniversity of Bengkulu1
Halauddin HalauddinUniversity of Bengkulu1
Liza LidiawatiUniversity of Bengkulu1
Paisal EdoUniversity of Bengkulu1
Nandi HaerudinLampung University1
Deassy SiskaMalikussaleh University1
Rustadi RustadiLampung University1
Helmy FitriawanLampung University1

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Sumber metadata: OAI-PMH (metadata jurnal) https://journal.unhas.ac.id/index.php/geocelebes/oai, pertama di-harvest 3 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc) 
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	<dc:title xml:lang="en">Identification of Sub-Fault Zone Using Magnetotelluric Inversion (Case Study: Ketaun Fault, Lemeu Village, Lebong Regency)</dc:title>
	<dc:creator xml:lang="en">Rahmawati, Nurul Ilmi </dc:creator>
	<dc:creator xml:lang="en">Farid, Muchammad</dc:creator>
	<dc:creator xml:lang="en">Hadi, Arif Ismul</dc:creator>
	<dc:creator xml:lang="en">Al Ansory, Andre Rahmat</dc:creator>
	<dc:subject xml:lang="en">Fault</dc:subject>
	<dc:subject xml:lang="en">Lebong</dc:subject>
	<dc:subject xml:lang="en">Magnetotelluric</dc:subject>
	<dc:subject xml:lang="en">Resistivity</dc:subject>
	<dc:description xml:lang="en">Lemeu Village, Lebong Regency, borders the Bukit Barisan Mountain range and is crossed by the Ketaun Fault, which causes a high level of seismic activity, so it is necessary to conduct research on the potential existence of the Ketaun sub-fault as one of the efforts to mitigate natural disasters such as earthquakes. The Magnetotelluric method utilises the earth's natural electromagnetic field, which is used to determine the distribution of resistivity in the subsurface using the ADU-07e Magnetotelluric tool with two horizontal electrical sensors (Ex, Ey) and three horizontal (Hx, Hy) and vertical (Hz) magnetic sensors and uses seven research points with an interval of 1 km. Data processing uses MAPROS software to convert data from the time domain to the frequency domain and ZONDMT2D to obtain subsurface resistivity values. The results obtained from this study are 2D magnetotelluric cross sections showing a zone with low resistivity values between research points P4 and P5 which is thought to be a new fault zone with resistivity values ranging from 1.3 – 6.1 Ωm from a depth of 2.5 km to a depth of 10 km. The zone is assumed to be a new fault that is a branch of the Ketaun fault.</dc:description>
	<dc:publisher xml:lang="en">Departemen Geofisika, FMIPA - Universitas Hasanuddin, Makassar</dc:publisher>
	<dc:date>2024-10-01</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/34588</dc:identifier>
	<dc:identifier>10.70561/geocelebes.v8i2.34588</dc:identifier>
	<dc:source xml:lang="en">JURNAL GEOCELEBES; Vol. 8 No. 2: October 2024; 132–141</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/34588/12122</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2024 JURNAL GEOCELEBES</dc:rights>
	<dc:rights xml:lang="en">https://creativecommons.org/licenses/by-nc-sa/4.0</dc:rights>
</oai_dc:dc>