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Journal : Journal of Geoscience, Engineering, Environment, and Technology

Deformation Of Lava Tounge at Semeru Volcano using Sentinel-1 DInSAR Chandra, Yuliana Iik Iswanti; Maryanto, Sukir; Susilo, Adi; Faridha Aprilia; Mayang Bunga Puspita
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 1 (2025): JGEET Vol 10 No 01 : March (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.1.21444

Abstract

Indonesia is vulnerable to various natural disasters, especially volcanic eruptions.  Mount Semeru, located between Malang and Lumajang, is an active volcano with a history of significant eruptions.  The eruption on December 4, 2021, caused many casualties and infrastructure damage.  This research utilizes Sentinel-1 (SLC) satellite imagery to analyze deformation changes caused by the eruption, with a particular focus on DInSAR analysis to depict changes in the crater's shape.  Before the eruption, no significant volcanic activity was detected, resulting in no clear deformation changes, with a deflation range between -0.096 cm and -0.145 cm.  However, during the eruption, the outflow of lava forming lava tongues led to the formation of lava deposits that affected surface deformation.  During the eruption phase, the deformation changes indicate an inflation phase, with values ranging from 0.064 cm to 0.094 cm, reflecting surface movement due to the accumulation of volcanic material.  After the eruption, the deformation changes became more pronounced due to the perfectly and stably formed lava deposits, with an inflation value range between 0.037 cm and 0.079 cm, resulting in significant surface shifts.  Phase reading disturbances were also detected at several locations due to lahar flows that occurred during and after the eruption.  The results of this study provide beneficial information for the relevant parties in formulating disaster mitigation strategies related to Mount Semeru's activities, as well as in understanding the dynamics of surface deformation influenced by eruptions, lava flows, and the formation of lava tongues.
Co-Authors Achmad Fakhrus Shomim, Achmad Fakhrus Adinegara, Aldo W. Agastya, Ida Bagus Oka Agung Teguh Wibowo Almais Agung, P. A. Maha Agus Naba Agus Pajrin Ahmad Hanif Al Fathoni, Ahmad Hanif Ahmad Luthfin Ahmad, Mustaffa A. Akhmad Jufriadi Alamsyah Muhammad Juwono ALathief Fashihullisan Andriansyah, M. Annabil, Achmad Achdan Aprilia, Faridha Asep Setiyo Budi Atok Yuliantono aunur rozaq B. Heri Purwanto Bagus Suryawan Bambang Aviantara Bambang Avianthara Barika Novanta Bunga Puspita, Mayang Chandra, Yuliana Iik Iswanti Dadan Dani Wardhana Denny Denny Yatmadi Deny Saputra Devita Fisas Riyanti Diah Ayu Chumairoh Dimas Pramudito Dipika Anggun Ardianti, Dipika Anggun Dolly Priatna dwi ajeng enggarwati Dwi Febriana Rochmah, Dwi Febriana Dwinanda, Indah Gumilang Eko Andi Suryo Fadly Usman Fajar Rakhmanto Fajrin, Rahma Annisa Fakhruddin, Fian Farid Hosni Faridha Aprilia Ganjar Sulastomo Gumelar, Dito Ibrahim Habibiy Idmi, Mohammad Halimah Halimah Hanafi, Muhammad Gusti Alif Zuhry Haniyyah, Saffanatul Hartiningtias, Diny Hermawan, Erwan Hetty Triastuty Hikhmadhan Gultaf Hisyam, Farizky Ibnu fajar sidik Idmi, Mohammad Habibiy Ilham Ilham indria restika anggraeni Intan Dewi Meutia Sari Juhari Juhari, Juhari Juwono, Alamsyah M Juwono, Alamsyah M. Kamali, Ahmad Byan Kardina, Dalendra Kevin Aulia Sandi Pratama Kukuh Suprayogi, Kukuh Kuni Azizah Lambertus Francisco Lestari, Santi Arum Puspita Maryanto - Mauludi Ariesto Pamungkas Mayang Bunga Puspita Moechammad Sarosa Monk, Kathryn A Mu'in, Fatkhul Muhajir Anshori Muhammad Fathur Rouf Hasan Muhammad Hendrasto Muhardi Muhardi Mujtaba, Mochammad Wafa Husain Muslih Udin Muslim, Teguh Musta, Baba Muwardi Sutasoma Nefrizal Nefrizal Nosevin Mangasi Onrizal Onrizal Osa, Dominggus Benyamin Pegatariana, I Ketut Ari Pratiwie, Dessy Lutfiani Putu Ayu Saraswati Razi, Mohd Adib Mohammad Rika Mayasyafa, Rika rizky gustiansyah Rofi Ridho Nurbilad, Rofi Ridho Rohana, Tatang Salman Hamja Siombone sania cahya maulida Sasmita Fidyaningrum Siti Jazimah Iswarin Sri Herwiningsih Sukir Maryanto Sunaryo - Surya Aji Ermanto Suryanto Suryanto Sutan Haji, Alexander T. SUTIKNO Teguh Suroso Titi Kalima Tri Deni Rachman Ulfah, Syarifatul Wasis M.AB, Wasis Wasis Wasis Wasis Wasis Welayaturromadhona Widyasandy, Dhony Yana Cahyana Yasa Suparman Yesika Wahyu Indrianti Yudianto, Didik Yunika, Nieske Ari Zainatul Afidah, Zainatul Zainorabidin, Adnan