Fault Structure Analysis Using GGMPlus Satellite Gravity Data in Sumenep Regency, East Java for Disaster Mitigation
DOI:
https://doi.org/10.35334/be.v10i1.633Keywords:
Fault, Gravity, Satellite Imagery, Residual Anomaly, SumenepAbstract
Sumenep Regency is an area that has experienced earthquakes with fatalities caused by activity along the Rembang, Madura, Kangean, and Sakala (RMKS) faults. This study aims to identify subsurface structures, particularly faults, in the Sumenep region using satellite gravity image data downloaded from GGMPlus. The gravity acceleration data obtained were processed into Complete Bouguer Anomalies (CBAs) and separated into regional and residual anomalies using a Butterworth filter. Then, First Horizontal Derivative (FHD) and Second Vertical Derivative (SVD) analyses were performed to clarify the anomaly boundaries and subsurface structures. Next, 2D geological modeling was performed on the residual anomaly data to determine the types and boundaries between subsurface formation layers. The results of the study showed significant variations in gravity anomalies, with high contrasts in the southwest and southeast areas, indicating differences in the density of subsurface rocks. FHD and SVD analyses successfully delineated suspected faults, especially in areas with contact layers between low-and high-density rocks. The 2D modeling showed that the contact layer between the Ngrayong-Tawun Formation and the Ngrayong-Bulu Formation has a weak bond, making it more vulnerable to triggers such as earthquakes. These results emphasize the importance of further study and disaster mitigation related to active faults in the region. For future research, it is necessary to conduct field surveys and integrate them with other geophysical methods to improve the accuracy of the results.
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References
BPS (2021) Hasil sensus penduduk 2020. Jakarta. Available at: https://web-api.bps.go.id/.
Hinze, W.J., Von Frese, R.R.B. and Saad, A.H. (2013) Gravity and Magnetic Exploration. First. Cambridge: Cambridge university press.
Hirt, C. et al. (2013) ‘New ultra-high resolution picture of Earth’s gravity field’, GEOPHYSICAL RESEARCH LETTERS, 40, pp. 4279–4283. Available at: https://doi.org/10.1002/grl.50838, 2013.
Hofi, L.N. et al. (2024) ‘Fault Detection and Subsurface Model Based on Gravity Data in Pronojiwo , Lumajang , Indonesia’, EVERGREEN Joint Journal of Novel Carbon Resource Sciences & Green Asia Strategy, 11(03), pp. 1666–1675.
Jacob, T. et al. (2018) ‘Mapping sand and clay- fi lled depressions on a coastal chalk cli ff top using gravity and seismic tomography refraction for landslide hazard assessment , in Normandy , France’, 246(October), pp. 262–276. Available at: https://doi.org/10.1016/j.enggeo.2018.10.007.
Murtianto, H. (2010) ‘POTENSI KERUSAKAN GEMPA BUMI AKIBAT PERGERAKAN PATAHAN SUMATERA DI SUMATERA BARAT DAN SEKITARNYA’, Jurnal Geografi Gea, 10(1). Available at: https://doi.org/https://doi.org/10.17509/gea.v10i1.1667.g1126.
Muslim, D. and Endyana, C. (2015) ‘PENTINGNYA IDENTIFIKASI PATAHAN AKTIF DALAM UPAYA MITIGASI BENCANA DI KAWASAN PENDIDIKAN JATINANGOR, JAWA BARAT’, Bulletin of Scientific Contribution, 13(2).
Reynolds, J.M. (2011) An Introduction to Applied and Environmental Geophysics. 2nd Editio. Oxford: A John Wiley & Sons, Ltd., Publication.
Ryanto, T.A. et al. (2019) ‘Pendugaan Awal Patahan di Pulau Jawa Menggunakan Anomali Gravitasi dan Riwayat Kegempaan Preliminary Fault Prediction in Java Island Using Gravity Anomaly and Earthquakes History’, Eksplorium, 40(1), pp. 43–52. Available at: https://doi.org/10.17146/eksplorium.2019.40.1.5470.
Situmorang, R.L., Agustianto, D.. and Suparman, M. (1992) ‘Peta_Geologi_Lembar_Waru_-_Sumenep,_Jawa_c9055f60002d080ae00e58d4d7825307’. Bandung: Pusat Penelitian dan Pengembangan Geologi.
Sulistiyono, E. (2017) ‘STUDI POTENSI MINERAL BERBASIS KARBONAT DI KABUPATEN’, in Seminar Nasional Sains dan Teknologi. Jakarta, pp. 1–2.
Suprianto, A. et al. (2021) ‘Correlation Between GGMPlus , Topex and BGI Gravity Data in Volcanic Areas of Java Island’, in 10th International Conference on Physics and Its Applications (ICOPIA 2020), pp. 1–6. Available at: https://doi.org/10.1088/1742-6596/1825/1/012023.
Sutasoma, M. et al. (2021) ‘Identification of Rock Layer Contacts in the Surrounding of the Sutami Dam Using Geomagnetic Methods’, International Journal of GEOMATE, 21(84), pp. 188–193. Available at: https://doi.org/10.21660/2021.84.j2179.
Sutasoma, M. et al. (2022) ‘Analysis of the Rock Layer Contact Using the Gravity Data of Satellite Imagery and Resistivity Method’, International Journal of GEOMATE, 23(96), pp. 69–76. Available at: https://doi.org/10.21660/2022.96.3306.
Sutasoma, M. et al. (2025) ‘Landslide Area Mapping in Dampit Subdistrict, Malang District, East Java Province Using Satellite Imagery of Gravity Data for Disaster Mitigation’, Indonesian Physical Review, 08(03), pp. 675–689.
Telford, W.M. et al. (1990) Applied Geophysics.pdf. second Edi. New York: Cambridge university press.
Wasito, D.W.S. (2024) Identifikasi sesar dan pemodelan struktur bawah permukaan di wilayah bangkalan berdasarkan data anomali gravitasi bumi. Universitas Islam Negeri Maulana Malik Ibrahim Malang.
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