Crustal structure in the southern part of West Java based on analysis of teleseismic receiver function

Syuhada, Syuhada; Anggono, Titi

doi:10.1063/1.4941642

Cited by 4 publications

(1 citation statement)

References 16 publications

(15 reference statements)

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“…In this study, the receiver function method was used using three-component teleseismic signal data which was processed using the deconvolution method by dividing the horizontal component with the vertical component that produces P waves that are converted into S waves from under the layer at the receiving station to obtain the depth of the Moho layer. The method of receiving functions to determine the structure of the earth's crust in Indonesia has been carried out several times by researchers [8][9][10][11][12].…”

Section: Figurementioning

confidence: 99%

A Preliminary Results: Study of Crustal Structure in Cimandiri Fault Based on Teleseismic Receiver Function Analysis

Ariyanto,

Rizqinandana,

Marsono

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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West Java is one of the regions in Indonesia that has a complex geological structure caused by plate subduction in the south of Java Island. This resulted the formation structure of the main faults in West Java, including the Cimandiri Fault. The high level of seismicity on the Cimandiri Fault is interesting to be further researched to understand the structure of the Earth crustal, such as variations depth of the Moho layer and the determination of local velocity models of P and S waves. This study used receiver function analysis from teleseismic earthquake data with an epicentral distance of 30°-90° from the station location and magnitude ≥ 6. This study used 3 seismic stations belonging to the Meteorological, Climatological, and Geophysical Agency (BMKG) close to the Cimandiri Fault which are Sukabumi station (SKJI), Warung Kiara (WSJM), and Sukaraja (SSJM). The depth of the Moho layer at SKJI station is 34-36 km, WSJM station is 28-30 km, and SSJM station is 29-31 km which is located close to the segment from the Cimandiri Fault. A negative phase or decrease in speed was observed at the SKJI and WSJM stations which is estimated to come from the Cimandiri Fault structure which is at a depth of 17-19 km. Furthermore, the P wave velocity model at the three stations is at an interval of 7.6-8.6 km/s and the S wave velocity model is at an interval of 4.2-4.8 km/s.

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Section: Figurementioning

confidence: 99%

A Preliminary Results: Study of Crustal Structure in Cimandiri Fault Based on Teleseismic Receiver Function Analysis

Ariyanto,

Rizqinandana,

Marsono

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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Crustal Structure Beneath KLNI Station in Lombok Island Based on Teleseismic Receiver Function

Ariyanto

Ariwibowo

Wijaya

et al. 2020

J. Phys.: Conf. Ser.

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Lombok Island is part of the Sunda-Banda arc system which is one of the most active tectonic regions in the world. In Lombok area there are two subduction zones namely Java trench in the south and Flores back arc thrust in the north. Information on crustal structure is needed to explain the tectonic development and geodynamic interaction of the area. The receiver function is one of the techniques used in the study to identify subsurface and wave velocity structures based on earthquake data regardless of the source mechanism. We analyzed receiver function of teleseismic events (epicenter distance 30-90°) and magnitude more than 6 (M>6) to estimate crustal thickness, Vp/Vs ratio and wave velocity structure beneath KLNI station using H-κ stacking and inversion method. We obtained that the crustal thickness and Vp/Vs ratio beneath KLNI station is about 21.38 km and 2.05. The high Vp/Vs ratio might be an indication of partial melting related to the upwelling of hot asthenosphere material through the subduction slab of Java Trench. The depth of the low velocity zone beneath KLNI station is at 10-18 km which is estimated due to the presence of geothermal

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Shallow dipping structure associated to the Cimandiri Fault: evidence from single station teleseismic receiver function analysis

Syuhada

Anggono

2017

J. Phys.: Conf. Ser.

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Crustal structure in the southern part of West Java based on analysis of teleseismic receiver function

Cited by 4 publications

References 16 publications

A Preliminary Results: Study of Crustal Structure in Cimandiri Fault Based on Teleseismic Receiver Function Analysis

A Preliminary Results: Study of Crustal Structure in Cimandiri Fault Based on Teleseismic Receiver Function Analysis

Crustal Structure Beneath KLNI Station in Lombok Island Based on Teleseismic Receiver Function

Shallow dipping structure associated to the Cimandiri Fault: evidence from single station teleseismic receiver function analysis

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