International Journal of Mining and Geo-Engineering

International Journal of Mining and Geo-Engineering

Euler deconvolution of a localized secondary fault of toru segment: the Batu Jomba landslide-prone road corridor

Document Type : Research Paper

Authors
Nadiyah Az Zuhriyyah 1
Lailatul Husna Lubis 1
Rahmat Nawi Siregar 2
Russell Ong 3
1 Department of Physics, Universitas Islam Negeri Sumatera Utara, Indonesia.
2 Department of Physics, Institut Teknologi Sumatera, Indonesia.
3 Department of Physics, Univeristas Islam Negeri Sumatera Utara, Indonesia.
10.22059/ijmge.2026.408790.595349
Abstract
Landslide mitigation in active tectonic regions is a critical component of geo-environmental risk management, particularly in areas with steep topography near active fault zones. This study applies the Euler deconvolution formula on gravity data to delineate the presence of a localized secondary fault associated with the Toru Segment (a part of the Sumatran Fault Zone), within the landslide-prone road corridor in Batu Jomba. Previous studies in this area have primarily focused on fault slip rates and shallow-depth fault mapping, therefore, the detection of secondary fault activity intersecting the Toru Segment has not been explored. To address this gap, high-resolution gravity anomaly data from the GGMplus model (~200 m resolution) were processed using geophysical inversion to image subsurface density variations and Euler deconvolution formula was applied to estimate the depth of these two areas. The Batu Jomba area is characterized by a low Bouguer density of 2.0454 g/cm³, consistent with the Sihapas Formation dominated by weak sandstone lithology. Field observations corroborate the presence of sandstone boulders within the landslide body, indicating low material strength. Euler deconvolution results reveal the absence of direct structural expression beneath the Batu Jomba. However, clustered depth solutions in areas surrounding Batu Jomba delineate the presence of localized secondary fault at depths of 193-530 m, nearby the main Toru Segment. Regional Euler depth patterns indicate tectonic activity at depths of 193-590 m in part of the Toru Segment and 193-1,082 m in the Angkola Segment. The shallower depth extent of the Toru Segment and Batu Jomba area when compared to the Angkola Segment supports the interpretation of localized crustal thinning in the Toru Segment region at shallow depths. These findings indicate that the Batu Jomba landslide-prone road corridor is controlled primarily by weak lithology and the nearby presence of secondary fault rather than the main Toru Segment. The results highlight the effectiveness of gravimetric methods, particularly Euler deconvolution in characterizing fault activity and geo-hazard assessment, offering practical implications for engineering planning and disaster-risk reduction.
Keywords
Batu Jomba
Euler deconvolution
Secondary fault
Toru segment.
Subjects
[1].    Li, Y., Zhang, H., Huang, L., Li, H., & Wu, X. (2023). The formation mechanism of landslides in typical fault zones and protective countermeasures: A case study of the Nanpeng River fault zone. Front Earth Sci (Lausanne), 10, 1-11 doi: 10.3389/feart.2022.1092662.
[2].   Wafi, A., Himawan, T. S., Daru, J. S., & Rikal, A. (2023). Analisis struktur bawah permukaan tanah dengan menggunakan metode geolistrik dan sondir. Prosiding Seminar Nasional dan Pameran Metode dan Teknologi Bidang Konstruksi.
[3].   Kodoatie, R. J. (2012). Tata ruang air tanah. Yogyakarta: Penerbit ANDI.
[4].   Kusumartono, H., & Heston, Y. P. (2010). Kajian sosial ekonomi ruas jalan alternatif Aek Latong (Tarutung-Sipirok). Kajian Sosial Ekonomi Ruas Jalan Alternatif Tarutung.
[5].   Rambe, E. I. (2013). Pendeteksian struktur tanah dan batuan dengan metode geolistrik resistivity konFigureurasi schlumberger di daerah Aek Latong Sipirok Tapanuli Selatan. Unimed Repository.
[6].   Natawidjaja, D. H. (2018). Major bifurcations, slip rates, and a creeping segment of sumatran fault zone in Tarutung-Sarulla-Sipirok-Padangsidempuan, Central Sumatra, Indonesia. Indonesian Journal on Geoscience 5(2): 137–160. https://doi.org/ 10.17014/IJOG.5.2.137-160.
[7].   Hutasuhut, B. P. (2023). Dampak sosial relokasi jalan Aek Latong,” Sinar Tabagsel. https://www.sinartabagsel.web.id/2024/08/dampak-sosial-relokasi-jalan-aeklatong.html
[8].   Sieh, K., & Natawidjaja, D. (2000). Neotectonics of the Sumatran fault, Indonesia. Journal of Geophysical Research 55(B12): 28295–28326. https://doi.org/10.1029/2000jb900120.
[9].   Reynolds, J. M. (2011). An introduction to applied and environmental geophysics. Wiley-Blackwell.
[10]. Kurniadi,Y. (2017). Identifikasi zona sesar menggunakan metode gravity di wilayah Ciater, Subang, Jawa Barat. Bandung: ITB Press.
[11].  Lestari, D. P. (2023). Pemodelan inversi data gaya berat dan penerapan penggunaan metode euler deconvolution untuk mendelineasi struktur regional segmen Sesar Cepu. Yogyakarta: UIN Sunan Kalijaga Press.
[12]. Aziz, K. N., Fitrianingtyas, R., Darmawan, D., & Laatifah, L. (2023). Analisis euler deconvolution untuk mengidentifikasi Patahan Lembang berdasarkan data gravitasi. Jurnal Geofisika 21(2): 20-26. http://dx/doi.org/10.36435/jgf.v21i2.558.
[13].  Foluronso, I. O., Magaji, Y., Ajadi, J., & Umar, I. (2023). Application of euler and werner deconvolution techniques in delineating tin deposit in Okeso area, Southwestern, Nigeria. Proceedings of the Nigerian Society of Physical Sciences: 96. https://doi.org/ 10.61298/pnspsc.2024.1.96.
[14]. Chukwu, C., Betts, P.,  Moore, D.,  Munukutia, R., Armit, R., McLean, M., & Grose, L. (2024). Unsupervised machine learning and depth clusters of Euler deconvolution of magnetic data: a new approach to imaging geological structures. Exploration Geophysics 55(3): 223–245. https://doi.org/10.1080/08123985.2023.2299475.
[15].  Mono, J. A., Bouba, A., & Nguiya, S. (2024). Edge detection and depth estimation using a tilt angle and euler deconvolution from combined terrestrial and grace gravity data of the Adamawa Plateau Region (North-Cameroon). Journal Of Applied Physics (IOSR-JAP) 16(4): 11–19. https://doi.org/10.9790/4861-1604011119.
[16].  Ghosh, G. K. (2022). Delineation of major subsurface structural features and source depth locations using 3-D Euler deconvolution of gravity data at north-eastern part of India. Acta Geophysica 70(5): 2033–2044. https://doi.org/10.1007/s11600-022-00829-0.
[17].  Muksin, U., Bauer, K., & Haberland, C. (2013). Seismic Vp and Vp/Vs structure of the geothermal area around tarutung (north sumatra, indonesia) derived from local earthquake tomography. Journal of Volcanology and Geothermal Research 260, 27–42. https://doi.org/10.1016/j.jvolgeores.2013.04.012.
[18]. Hickman, R. G., Dobson, P. F., Gerven, M., Sagala, B. D., & Gunderson, R. P. (2004). Tectonic and stratigraphic evolution of the sarulla graben geothermal area, North Sumatra, Indonesia. Journal of Asian Earth Science 23(3): 435–448. https://doi.org/ 10.1016/S1367-9120(03)00155-X.
[19]. Lai, Y., Chung, S., Ghani, A. A., Murtadha, S., Lee, H., & Chu, M. (2021). Mid-miocene volcanic migration in the Westernmost Sunda Arc induced by India-Eurasia collision. Geology, The Geological Society of America 49(6): 713–717. https://doi.org/10.1130/G48568.1
[20]. Siringoringo, L. P., Sapiie, B., Rudyawan, A., & Sucipta, I. G. B. E. (2024). Origin of high heat flow in the back-arc basins of Sumatra: An opportunity for geothermal energy development. Energy Geoscience 5(2024): 1-16. https://doi.org/10.1016/j.engeos.2024.100289
[21]. Lismawaty., Pinem, D. E., & Lubis, G. (2022). Analisa batupasir formasi sihapas sebagai batuan pembawa hidrokarbon (reservoar rock) daerah Gunung Tua-Sumatera Utara. Jurnal Sains dan Teknologi 17(1): 1-6. https://doi.org/10.59637/jsti.v17i1.137
[22]. Barber, A. J., & Crow, M. J. (2005). Chaper 13: Structure and structural history. Geological Society Publications 31: 175-233. https://doi.org/10.1144/GSL.MEM.2005.031.01.13
[23]. Jayatri, A, U.,  Multi, W., & Hayatuzzahra, S. (2023). Identifikasi keberadaan sesar menggunakan metode gravitasi dan analisis second vertical derivative (svd) di Bagian Selatan Kabupaten Sumbawa. Jurnal Tambora 7(2): 53-37. https://doi.org/10.36761/jt.v7i2.2954
[24]. Daoud, A. M. A., Shebl, A., Abdelkader, M. M., Mohieldain, A. A., Csamer, A., Satti, A. M. N., & Rozsa, P. (2025). Remote sensing and gravity investigations for barite detection in Neoproterozoic rocks in the Ariab area, Red Sea Hills, Sudan. Remote Sensing Application 37(2025): 1-27. https://doi.org/10.1016/j.rsase.2024.101416
[25].           Sudrajad, B. (2023). Analisis deskriptif perbandingan data sekunder gravitasi GGMplus terhadap data gravitasi lapangan panas bumi Gunung Lawu dan data gravitasi stasiun referensi 
(gravity base station) di Pulau Papua. Jurnal Fisika Papua 2(1): 25–34. https://doi.org/10.31957/jfp.v2i1.22
[26]. A. S. Visca., M. Syafwan., & A. R. Putri. (2019). Interpolasi splin kubik terapit. Jurnal Matematika, 7(2), 141-148.
[27]. Rhamadani, D. A. & Saputra, E. E. D. (2023). Analisa model machine learning dalam memprediksi laju produksi sumur migas 15/9-F-14H. Jurnal Ilmu Fisika dan Pembelajarannya (JIFP) 6(2): 23-30. https://doi.org/10.19109/jifp.v6i2.13958
[28]. Telford, W. M., Geldart, L. P., & Sheriff, R. E. (1990). Applied geophysics (Vol.1). Cambridge university press.
[29]. Febridon, M. N., Mulyatno, B. S., & Wijaksono, E. (2020). Analisis sifat fisis pada reservoar batupasir menggunakan metode seismik inversi impedansi akustik (ai) dan multiatribut pada Lapangan ‘Mnf’ Cekungan Bonaparte. JGE (Jurnal Geofisika Eksplorasi) 4(2): 118–128. https://doi.org/10.23960/jge.v4i2.11
[30]. W. G. A. Kadir, S. Sukmono, M. T. Zen, L. Hendrajaya, and D. Santoso, “Gravity Evidence for The Thinning of The Crust Around The North Sumatera Area,” in Indonesian Petroleum Association, The AAPG/Datapages Combined Publications Database, 1996.
[31].  Hidayat, S., Lubis, L. H., & Parera, A. F. T. (2023).  Analisis potensi geothermal Gunung Sibualbuali menggunakan metode gravity. Gravitasi 6(2): 14-19. https://doi.org/10.33059/gravitasi.jpfs.v6i02.8542
[32].   Spector, A., Grant, F.S. (1970). Statistical models for interpreting aeromagnetic data. Geophysics 35 (2), 293–302. https://doi.org/10.1190/1.1440092
[33]. Layade, G. O., Bamidele, E. O., Makinde, V., Bada, B. S., & Edunjobi, H. O. (2025). Qualitative and quantitative interpretation of high-resolution gravity data of Ewekoro, Southwest Nigeria using source parameter imaging and Euler deconvolution techniques. Iranian Journal of Geophysics 18(6): 1–16. https://doi.org/ 10.30499/IJG.2023.398619.1533
[34]. Zaenudin, A., Karyanto., Kurniasih, A., & Wiboow, R. C. (2021). Analisis struktur patahan daerah Suoh menggunakan metode gaya berat dan penentuan kerapatan patahan. POSITRON 11(2): 95-103. https://doi.org/10.26418/positron.v11i2.48461
[35]. Yanis, M., Simanjutak, A. V. H., Abdullah, F., Marwan., & Ghani, A. A. (2023). Application of seismicity and gravity observation-based filtering model for mapping a fault structure in Weh Island, Indonesia. Iraqi Geological Journal 56(2): 260–274. https://doi.org/10.46717/igj.56.2A.20ms-2023-7-29
International Journal of Mining and Geo-Engineering
Volume 60, Issue 3
Summer 2026
Pages 347-356