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All Journal TERRA : Journal of Land Restoration Journal of Earth and Marine Technology (JEMT) Jurnal Ilmiah Geomatika
Aminulloh, Dzikru
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Energy Engineering Physics Transportation

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Landslide Susceptibility Zonation Using Analytic Hierarchy Process Method in the Karangbolong Hills Area, Indonesia Susilowati, Susilowati; Radityo, Daniel; Aminulloh, Dzikru; Rahayu, Ririn Wuri
Journal of Earth and Marine Technology (JEMT) Vol 5, No 2 (2025)
Publisher : Lembaga Penelititan dan Pengabdian kepada Masyarakat - Institut Teknologi Adhi Tama Suraba

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jemt.2025.v5i2.7346

Abstract

The highest frequency of landslides in Kebumen Regency is observed in the Ayah Subdistrict and Buayan Subdistrict, which are in the southern part of the Karangbolong Hills. This area are the targets for the construction of the 14.03 km Ayah-Jladri Southern Cross Road (JJLS). Consequently, the objective of this study is to create a landslide susceptibility map utilizing the Analytic Hierarchy Process (AHP) methodology. Some causative factors are used to develop landslide susceptibility maps i.e. elevation, slope gradient, aspect and curvature, lithology and lineament density, distance from streams, land use and distance from roads. A total number of 128 landslide events are considered in the study. This method identified five susceptibility zones based on LSI value: very low (141.79-241.74), low (241.75-293.73), moderate (293.74-334.52), high (334.53-374.89), and very high (374.90-460.50). The landslide susceptibility map was validated, with an AUC value of 0.749, suggesting that the map provides good results.
Analisa Komposisi Material Bawah Tanah Hasil Letusan Gunung Merapi di Dusun Mliwis, Kecamatan Cepogo, Boyolali dengan Metode Geolistrik Resistivitas Konfigurasi Wenner Schlumberger Aminulloh, Dzikru; Susilowati; Ekasara, Adam Raka; Adha, Ikhwannur
Jurnal Ilmiah Geomatika Vol. 5 No. 1: April 2025
Publisher : Program Studi Teknik Geomatika Fakultas Teknologi Mineral Universitas Pembangunan Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/imagi.v5i1.14880

Abstract

Dusun Mliwis, Kecamatan Cepogo, Kabupaten Boyolali adalah salahsatu area yang terdampak letusan Gunung Merapi dan menjadi area sampel pengambilan data geolistrik resistivitas. Metode geolistrik adalah metode geofisika yang digunakan untuk mengetahui lokasi, kedalaman, ketebalan dan komposisi material tanah dan batuan dibawah permukaan bumi. Dimana dari pengukuran geolistrik resistivitas  didapatkan 4 lapisan material sedimen, yaitu lapisan tuf, lapisan pasir, lapisan campuran pasir dengan kerikil dan kerakal dan lapisan lava atau boulder andesit. Dari hasil interpretasi material bawah tanah di Desa Mliwis didominasi oleh lapisan pasir dan campuran pasir dengan kerikil-kerakal.
Outcrop-Scale Investigation of Geological and Soil Physical Controls on Slope Stability in the Semilir Formation Lovita, Vinni; Aminulloh, Dzikru; Mulyanto, Djoko; Ayu Lidya Permata Putri, Devanda; Kresna Pambayu, Aldio
TERRA : Journal of Land Restoration Vol. 8 No. 2 (2025)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/terra.8.2.87-95

Abstract

Landslides are a major hazard in Indonesia’s volcanic terrains, where highly weathered pyroclastic rocks and intense rainfall frequently trigger slope failures. This study aims to identify geological, geomorphological, and soil physical factors controlling slope stability within the Semilir Formation of Gunungkidul, Yogyakarta. Field observations and laboratory analyses were conducted to compare outcrops affected by translational landslides with adjacent stable slopes. Key parameters include bedding orientation, soil bulk density, plasticity index, and water retention capacity. The results indicate that dip-slope bedding orientations strongly predispose slopes to translational failure, whereas counter-dip structures enhance stability. Landslide-prone slopes exhibit higher bulk density, lower plasticity, and reduced water-holding capacity, which accelerate saturation and decrease cohesion during intense rainfall. In contrast, stable slopes possess higher plasticity and greater water retention, often reinforced by vegetation roots. These findings highlight the combined role of geological structure and soil properties as reliable indicators of landslide susceptibility. The study’s novelty lies in its outcrop-scale comparative approach within a single volcanic formation, providing practical implications for slope management through vegetation reinforcement, improved drainage, and locally calibrated rainfall thresholds.  Full text pdf
Co-Authors Adha, Ikhwannur Ayu Lidya Permata Putri, Devanda Djoko Mulyanto Ekasara, Adam Raka Kresna Pambayu, Aldio Radityo, Daniel Rahayu, Ririn Wuri Susilowati Susilowati Susilowati Vinni Lovita