Integrated mapping of the earthquake-induced liquefaction in Wates Groundwater Basin, Kulon Progo for land use planning consideration: A preliminary study

Ilham, Muhamad; Putra, Doni Prakasa Eka

doi:10.1088/1755-1315/1071/1/012005

Cited by 2 publications

(4 citation statements)

References 7 publications

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“…The final map that resulted from this method is showing a significantly different zonation from the previous result from [9]. In the final map of this research, the high susceptibility area is distributed also in the south and east parts, while in the previous research, only high susceptibility showed in the same part.…”

Section: Comparison With the Previous Studycontrasting

confidence: 65%

“…The combined method has produced slightly different zones of liquefaction susceptibility if compared to the result from [9], which only applies the AHP method. It indicates that the combined method has reduced the subjectivity in the parameters and produced a more detailed map even with the same data.…”

Section: Discussionmentioning

confidence: 99%

“…Although previous mapping has been carried out using the Geographic Information System (GIS) method and combined with the AHP method [9], further detailing and validation of the results still need to be done. Therefore, this study is aimed to obtain a more comprehensive and reliable result map by applying the GIS-Multi-Criteria Assessment (GIS-MCA) method, which integrates the Fuzzy sets, AHP, and TOPSIS methods, while simultaneously validating the obtained results using field data in the form of Cone Penetration Test (CPT).…”

Section: Introductionmentioning

confidence: 99%

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Integration of Fuzzy Sets, AHP, and TOPSIS Methods for Estimation of Liquefaction Potential Zones in Wates Groundwater Basin, Kulon Progo, Special Region of Yogyakarta

Ilham,

Putra

2024

IOP Conf. Ser.: Earth Environ. Sci.

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In regional development planning, geological, environmental, and socio-economic conditions must be considered. Among the crucial things is the potential for disasters in the region. The Wates Groundwater Basin area has great regional development potential, starting from the establishment of the New Yogyakarta International Airport (NYIA) to the Southern Causeway (JJLS) construction. Various developments are predicted to continue to grow along with the development of areas targeted by the government for this area so the mapping of potential disasters is necessary as a means of achieving Sustainable Development Goals (SDGs). One of the potential disasters in CAT Wates is a liquefaction disaster, which is supported by geological, hydrogeological, and seismic data in this area which is prone to liquefaction. To confirm this potential, this research was conducted using geological and hydrogeological data from previous studies. The result of this research is a more detailed and objective zoning map of the liquefaction potential even though it uses minimal data. This is done by integrating the Fuzzy Sets, AHP, and TOPSIS methods, while simultaneously validating the result using the Cone Penetration Test (CPT) data. The results show that the eastern and southern regions of the basin which are composed of river deposits and coastal deposits, respectively, have a high to very high relative vulnerability to liquefaction, while the central region of the basin has a low to moderate relative vulnerability, and the northern region of the basin tends to have relatively very low vulnerability. That result is aligned with the total thickness of the liquefiable layer from CPT data. It indicates that the combined method is proven to be reliable for liquefaction susceptibility spatial mapping. Thus, the result hopefully can be used as a reference for land use planning in the Wates Groundwater Basin area.

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Section: Comparison With the Previous Studycontrasting

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Integration of Fuzzy Sets, AHP, and TOPSIS Methods for Estimation of Liquefaction Potential Zones in Wates Groundwater Basin, Kulon Progo, Special Region of Yogyakarta

Ilham,

Putra

2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…The research area is situated within the discharge area of the Wates groundwater basin, where water flows from the north to the south and east. The study area is assessed to have a high potential for liquefaction due to its shallow groundwater, thick sandy sediments, and high seismic activity [20].…”

Section: Fig5 Groundwater Depth (Clear Weather No Rain)mentioning

confidence: 99%

Seismic Vulnerability Assessment Using the HVSR Method at Yogyakarta International Airport Underpass, Indonesia

Prasetya

2024

GEOMATE

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The YIA has become one of the focal points for national infrastructure development and economic growth. Based on historical seismic activity, YIA and its vicinity are characterized by high levels of seismic activity. However, the data and information available regarding this matter are notably limited. This research aims to assess the soil vulnerability in the vicinity of the YIA Underpass. The soil vulnerability assessment is conducted by measuring microtremors and groundwater levels. The microtremor data is processed using the Horizontal-to-Vertical Spectral Ratio (HVSR) method with geopsy software and guidelines provided by Site Effects Assessment Using Ambient Excitations (SESAME). The research findings reveal that the study area exhibits a high seismic hazard potential, as evidenced by the seismic vulnerability index (Kg), which is more than 20. The interpretation of the HVSR curve indicates that the study area is characterized by a low dominant frequency (f0) ranging from 0.214 to 0.289 Hz, along with varying shear wave velocities. Based on the stress-corrected shear wave velocity (Vs1), point U01 is more likely to liquefy than U05 and U07 as Vs1 in some soil layers is less than 215 m/s. This analysis indicates that the study area is susceptible to earthquake hazards due to thick soil deposit layers and shallow groundwater levels.

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Integrated mapping of the earthquake-induced liquefaction in Wates Groundwater Basin, Kulon Progo for land use planning consideration: A preliminary study

Cited by 2 publications

References 7 publications

Integration of Fuzzy Sets, AHP, and TOPSIS Methods for Estimation of Liquefaction Potential Zones in Wates Groundwater Basin, Kulon Progo, Special Region of Yogyakarta

Integration of Fuzzy Sets, AHP, and TOPSIS Methods for Estimation of Liquefaction Potential Zones in Wates Groundwater Basin, Kulon Progo, Special Region of Yogyakarta

Seismic Vulnerability Assessment Using the HVSR Method at Yogyakarta International Airport Underpass, Indonesia

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