Comparison Study of Crustal Structure in Aceh Region based on Volcanic Arc System using Receiver Function Method

Mahardiana, R I; Ariyanto, P; Pranata, Bayu; Prayitno, Bambang

doi:10.1088/1742-6596/2110/1/012003

Cited by 2 publications

(3 citation statements)

References 10 publications

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“…This study used the receiver function method to analyze the structure of the earth's crust in East Java. Research on the structure of the earth's crust using the receiver function method in Indonesia has been carried out several times by several researchers [3][4][5][6][7]. It is very important to know and analysis the structure of the crust under the station.…”

Section: Figure 1 Seismicity Map Of East Javamentioning

confidence: 99%

Depth Estimation of Moho Discontinuity Layer at 5 BMKG Seismic Stations in East Java Using Receiver Function Method

Susena,

Ariyanto,

Pranata

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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East Java is one of the areas with a high level of seismicity due to the existence of a subduction zone in the south of Java Island. In addition, there are also active faults and active volcanos in East Java. This study aims to determine the depth of the Moho Discontinuity layer and subduction slab using receiver function method based on the iterative time domain deconvolution. This study was conducted using teleseismic earthquake data with an epicenter distance of 30°–90° from the receiver station and magnitude more than 6 (M≥6). 5 BMKG seismic stations that form a straight line are used, including those in the Bawean Arc (BWJI), Rembang Zone (BAJI), Kendeng Zone (SIJM), Modern Mountain Arc (PPJI), Southern Mountain Zone (GEJI). The depth of the Moho Discontinuity layer at BWJI Station was observed in ranges from 36–38 km, at BAJI Station it ranges from 39–40 km, at SIJM Station it ranges from 39–40 km, at PPJI Station it ranges from 46–48 km, and at GEJI Station it ranges from 33–36 km. In general, the Moho Discontinuity layer in the mountainous region is deeper due to the isostasy effect.

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Section: Figure 1 Seismicity Map Of East Javamentioning

confidence: 99%

Depth Estimation of Moho Discontinuity Layer at 5 BMKG Seismic Stations in East Java Using Receiver Function Method

Susena,

Ariyanto,

Pranata

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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“…In addition, these results are consistent with the previous receiver function studies in the same zone. [7] have estimated Moho is at a depth of 28-32 km under PLSI station, and [9] have estimated Moho is at a depth of 37-40 km under KCSI station. From the receiver function migration result using AK135 global velocity model (Figure 11), Moho under MBBI station was estimated at a depth of ~30-33 km (shown by the black dotted line).…”

Section: Figure 8 Radial Component Receiver Function Of Sksm Stationmentioning

confidence: 99%

“…Teleseismic receiver function is a method to estimate earth structure (crust and upper mantle), especially Moho discontinuity under the receiver station by observing the phase conversion of seismic waves that occurs at a seismic discontinuity [6]. Several studies about the earth's crust structure on Sumatra Island have been carried out by several researchers [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Moho Depth Estimation and The Presence of Subducting Slab in West Sumatra, Jambi, and Riau Islands Regions Using Teleseismic Receiver Function Method: A Preliminary Result

Zarkasi,

Ariyanto,

Marsono

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The teleseismic receiver function method was used to investigate the crustal structure in West Sumatra, Jambi, and Riau Islands regions. These regions have a high level of seismicity because it is in an active tectonic zone where the oblique subduction between the Indo-Australian and Eurasian plates occurs. This study aims to determine the depth of Moho discontinuity and the presence of subducting slab beneath 6 BMKG seismic stations that form a line perpendicular to the trench and cover 3 different geological zones. PPSI and RASM are in the forearc zone, SKSM is in the volcanic arc zone, and MBBI, JMBI, and DSRI are in the back-arc zone. This study used teleseismic earthquake record data with epicentral distance between 30°-90° from the receiver and magnitude 6 or more. The iterative time-domain deconvolution and receiver function migration techniques were applied to estimate the depth of Moho discontinuity and the presence of subducting slab. The depth of Moho discontinuity in West Sumatra, Jambi, and Riau Islands regions ranges from 21-39 km and generally deeper in the volcanic arc zone possibly due to the isostatic effect. Moho is at a depth of 21-29 km in the forearc zone, 36-39 km in the volcanic arc zone, and 30-36 km in the back-arc zone. Then the subducting slab was observed at a depth of 20 km under PPSI station to 200 km under MBBI station.

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Comparison Study of Crustal Structure in Aceh Region based on Volcanic Arc System using Receiver Function Method

Cited by 2 publications

References 10 publications

Depth Estimation of Moho Discontinuity Layer at 5 BMKG Seismic Stations in East Java Using Receiver Function Method

Depth Estimation of Moho Discontinuity Layer at 5 BMKG Seismic Stations in East Java Using Receiver Function Method

Moho Depth Estimation and The Presence of Subducting Slab in West Sumatra, Jambi, and Riau Islands Regions Using Teleseismic Receiver Function Method: A Preliminary Result

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