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Characterizing Earthquake Source Parameters and b Value Variations in Subduction and Fault Segments: Implications for Seismic Hazard Analysis

Journal of Mathematical and Fundamental Sciences · Vol. 56 No. 1 (2024) · hlm. 1–17

DOI
10.5614/j.math.fund.sci.2024.56.1.1
ISSN
2338-5510, 2337-5760
Terbit
2024-07-31
Penerbit
Directorate for Research and Innovation (DRI) ITB
Bahasa
eng
Lisensi
creativecommons.org/licenses/by-nc-nd/4.0

Abstrak

Earthquake sources in Aceh have distinct characteristics. Understanding the seismic characteristics of each earthquake source is crucial for comprehending earthquake cycles and assessing seismic hazards. A key parameter in characterizing an earthquake source is the b-value, which indicates the relationship between the number of earthquakes and their magnitudes, influenced by the magnitude of completeness (Mc). The present study analyzed the seismic characteristics of two subduction zone segments and sixteen fault segments using the least squares method on selected earthquake data specific to each segment. The analysis revealed that the b-value ranged from 0.5 to 0.6 in the subduction zone segments and from 0.3 to 1.0 in the fault segments. These variances in b‑value reflect the different seismic characteristics of the earthquake sources that shape the tectonic settings in Aceh. A lower b-value signifies an elastic zone capable of holding higher stress levels, whereas a higher b-value indicates a brittle zone that can only withstand lower stress levels.

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  • Universitas Syiah Kuala
  • Universitas Halu Oleo
  • Universitas Sumatera Utara
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Yusran AsnawiAfiliasi tidak diketahui3
Andrean Vesalius Hasiholan SimanjuntakAfiliasi tidak diketahui3
Sayuti RahmanAfiliasi tidak diketahui2
Inna NuranaAfiliasi tidak diketahui2
Djati Cipto KuncoroAfiliasi tidak diketahui2
Hurien HelmiAfiliasi tidak diketahui2
Agung SetiantoAfiliasi tidak diketahui2
Gayatri Indah MarliyaniAfiliasi tidak diketahui2
Aulia Kurnia HadyAfiliasi tidak diketahui2
Yann KlingerAfiliasi tidak diketahui2
Telly KurniawanAfiliasi tidak diketahui2
Retno Agung Prasetyo KambaliAfiliasi tidak diketahui2
Zulham SugitoAfiliasi tidak diketahui2
Yosi SetiawanAfiliasi tidak diketahui2
Supriyanto RohadiAfiliasi tidak diketahui2
Rahmat TriyonoAfiliasi tidak diketahui2
Dwikorita KarnawatiAfiliasi tidak diketahui2
MailizarAfiliasi tidak diketahui1
Rahmah JoharUniversitas Syiah Kuala1
MutiawatiUniversitas Syiah Kuala1
Syamsul RizalAfiliasi tidak diketahui1
Muhammad SyukriUniversitas Halu Oleo1
Rahmad Bayu SyahAfiliasi tidak diketahui1
Marischa ElvenyUniversitas Sumatera Utara1
Dionikxon ManurungAfiliasi tidak diketahui1
Rahmah JoharAfiliasi tidak diketahui1
Mailizar MailizarAfiliasi tidak diketahui1
Mutiawati MutiawatiAfiliasi tidak diketahui1
Muhammad IsaAfiliasi tidak diketahui1
Dwiky Pobri CesarianAfiliasi tidak diketahui1
Elin YusibaniAfiliasi tidak diketahui1
Muhammad Syukri SurbaktiAfiliasi tidak diketahui1
Ismail Ahmad AbirAfiliasi tidak diketahui1

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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) 
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	<dc:title xml:lang="en-US">Characterizing Earthquake Source Parameters and b Value Variations in Subduction and Fault Segments: Implications for Seismic Hazard Analysis</dc:title>
	<dc:creator>Jihad, Abdi</dc:creator>
	<dc:creator>Banyunegoro, Vrieslend Haris</dc:creator>
	<dc:creator>umar, muksin</dc:creator>
	<dc:creator>ramli, marwan</dc:creator>
	<dc:creator>Syamsidik, Syamsidik</dc:creator>
	<dc:creator>idris, yunita</dc:creator>
	<dc:creator>Rusdin, Andi Azhar </dc:creator>
	<dc:subject xml:lang="en-US">earthquake</dc:subject>
	<dc:subject xml:lang="en-US">b-value</dc:subject>
	<dc:subject xml:lang="en-US">magnitude of completeness</dc:subject>
	<dc:subject xml:lang="en-US">subduction</dc:subject>
	<dc:subject xml:lang="en-US">fault system</dc:subject>
	<dc:subject xml:lang="en-US">seismic hazard analysis</dc:subject>
	<dc:description xml:lang="en-US">Earthquake sources in Aceh have distinct characteristics. Understanding the seismic characteristics of each earthquake source is crucial for comprehending earthquake cycles and assessing seismic hazards. A key parameter in characterizing an earthquake source is the b-value, which indicates the relationship between the number of earthquakes and their magnitudes, influenced by the magnitude of completeness (Mc). The present study analyzed the seismic characteristics of two subduction zone segments and sixteen fault segments using the least squares method on selected earthquake data specific to each segment. The analysis revealed that the b-value ranged from 0.5 to 0.6 in the subduction zone segments and from 0.3 to 1.0 in the fault segments. These variances in b‑value reflect the different seismic characteristics of the earthquake sources that shape the tectonic settings in Aceh. A lower b-value signifies an elastic zone capable of holding higher stress levels, whereas a higher b-value indicates a brittle zone that can only withstand lower stress levels.</dc:description>
	<dc:publisher xml:lang="en-US">Directorate for Research and Innovation (DRI) ITB</dc:publisher>
	<dc:date>2024-07-31</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/19762</dc:identifier>
	<dc:identifier>10.5614/j.math.fund.sci.2024.56.1.1</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Mathematical and Fundamental Sciences; Vol. 56 No. 1 (2024); 1-17</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/19762/6969</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 Journal of Mathematical and Fundamental Sciences</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-nc-nd/4.0</dc:rights>
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