Preliminary modeling of tsunami potential in the Tanimbar Islands

  • Eva Susan Ratuluhain Universitas Pattimura
  • Yunita Angnetjie Noya Universitas Pattimura
  • Degen E. Kalay Universitas Pattimura
  • Ronald Darlly Hukubun Universitas Pattimura
Keywords: Tanimbar, tsunami modeling, seismic activity, tectonic framework

Abstract

The Tanimbar Islands are an area of high tectonic activity and are part of the outer arc island chain formed by subduction in the Banda zone. The presence of the Sorong Fault and Tanimbar Fault around the Tanimbar Islands also affects the level of vulnerability to earthquakes and tsunami hazards. The purpose of this study was to predict the tsunami potential and affected area of the Tanimbar Islands. The method of analyzing the height data and predicting the affected area used COMCOT v1.7 software. Model simulations were performed on the domain layer by using linear equations. Earthquake and fault parameter data were obtained from the USGS website using historical earthquakes dated January 10, 2023. Bathymetry data were obtained from the GEBO website at a resolution of 15-arcsecond (464 m). The model simulation results show that the initial wave height value marked by the red contour is 0.22 m and the lowest low tide value marked by the blue contour is -0.4 m. Based on these results, the tsunami potential in the Tanimbar Islands is not dangerous, as the potentially affected areas in the study area are Selu Island, Woluaru Island, Wotap Island, and Molu Island, as well as the small islands in the western part. The simulation results demonstrate the importance of research related to tsunami hazards that may occur in the future so that appropriate mitigation can be planned for the existence of small islands around the Tanimbar Islands.

References

Alviani, P. (2021). Buku Pintar Penanggulangan Tsunami. Diva Press; Yogyakarta.

An, C., Ignacio, S., & Liu, P. L. F. (2014). Tsunami Source and It’s Validation of The 2014 Iquique, Chile Earthquake. Geophysical Research Letters, 41, 3988-3994. https://doi.org/10.1002/2014GL060567

Charlion, K. R. (2004). The petroleum of inversion anticlines in the Banda Arc. AAPG. Bulletin, 88, 565-586.

Fathianpour, A., Evans, B., Jelodar, M. B., & Wilkinson, S. (2023). Tsunami evacuation modelling via micro-simulation model. Progress in Disaster Science, 17, 100277. https://doi.org/10.1016/j.pdisas.2023.100277

Fuad, M. A. Z., Effendi, V. R., & Dewi, C. S. U. (2022). Application of sar remote sensing and geographic information systems (gis) in coastline change studies–a case study of coastline change due to the 2018 tsunami in tanjung lesung, banten. Asian Journal of Aquatic Sciences, 5(1), 87-98.

Ghazi, Z. M., Abbood, I. S., & Hejazi, F. (2022). Dynamic Evaluation of Jack-Up Platform Structure Under Wave Wind, Earthquake and Tsunami Loads. Journal of Ocean Engineering and Science, 7(1), 41-57. https://doi.org/10.1016/j.joes.2021.04.005

Hidayati, M. P., Purnama, A. Y., & Setyawan, D. N. (2022). E-Modul Fisika Berbasis Mitigasi Bencana Gempa Bumi. Deepublish; Yogyakarta.

Laksono, FX. A. T., Aditama, M. R., Setijadi, R., & Ramadhan, R. (2020). Run-Up height and flow depth simulation of 2006 South Jawa tsunami using COMCOT on Widrapayung Beach. Conf. Ser.: Mater. Sci. Eng, 1-11. https://doi.org/10.1088/1757-899X/982/1/012047

Lestari, D. A., Fitriasari, N. S., Ahmad, T. E., Rais, A., & Azhari, D. R. (2021). Spatial Analysis on Tsunami Predictions in Pandeglang Regency. Forum Geografi, 35(1), 103-115. https://doi.org/10.23917/forgeo.v35i1.12367

Mutmainah, H, Christiana, D. W., & Kusumah, G. (2016). Tsunami Mentawai 25 Oktober 2010 (simulasi COMCOT v1.7) dan Dampaknya Kini Terhadap Pantai Barat Mentawai. Jurnal Kelautan: Indonesia J. of Marine Science and Technology, 9(2), 175-187. https://doi.org/10.21107/jk.v9i2.1917

Mahmudah, S., & Supardi, Z. A. (2023). Analisis Parameter Kegempaan (Nilai-A Dan Nilai-B) Di Wilayah Busur Banda. Jurnal Riset Rumpun Matematika Dan Ilmu Pengetahuan Alam, 2(1), 254-262. https://doi.org/10.55606/jurrimipa.v2i1.1239

Rasyif, T. M., Shigeru, K., Syamsidik, & Okabe, T. (2019). Numerical Simulation of Morphological Changes due to the 2004 Tsunami Wave Around Banda Aceh, Indonesia. Geosciences, 9(125), 1-16. https://doi.org/10.3390/geosciences9030125

Ratuluhain, E. S., Nurjaya, W. I., & Natih, N. M. N. (2021). Analisis Potensi Tsunami di Lombok Utara. Jurnal Ilmu dan Teknologi Kelautan Tropis, 13(1): 113-126. J. Ilmu dan Teknologi Kelautan Tropis, 13(1), 13-126. https://doi.org/10.29244/jitkt.v13i1.29336

Ratuluhain, E. S., Noya, Y. A., Pradjoko, E., Rahman, & Hukubun, R. D. (2022). Rekonstruksi Tsunami Mentawai dengan Menggunakan COMCOT v1.7. NEKTON: Jurnal Perikanan dan Ilmu Kelautan, 2(2), 54-62. https://doi.org/10.47767/nekton.v2i2.403

Riyanda, R. A. (2016). Studi identifikasi cekungan Tanimbar untuk mengetahui pola sub-cekungan sedimen berpotensi hidrokarbon berdasarkan analisis gaya berat. (Undergraduate’s Thesis, UNILA). http://digilib.unila.ac.id/21388/3/SKRIPSI%20TANPA%20BAB%20PEMBAHASAN.pdf

Rudyawan, A., & Pamumpuni, A. (2023, March 28). Bertetangga Dengan Gunung Lumpur Bawah Laut. REKACIPTA ITB. https://pengabdian.lppm.itb.ac.id/information/bertetangga_dengan_gunung_lumpur_bawah_laut

Pradjoko, E., Kusuma, T., Setyandito, O., Suroso, A., & Harianto, B. (2014). The Tsunami Run-Up Assement of 1977 Sumba Earthquake in Kuta Center of Lombok, Indonesia. Prosedia Earth and Planetary Science, 14, 9-16. https://doi.org/10.1016/j.proeps.2015.07.079

Qonita, Z., Karima, S., Rusdiansyah, A., & Riyandari, R. (2024). Numerical modelling of The 1998 Papua New Guinea tsunami using COMCOT. Barekeng : Journals of Matematics and Its Applications, 18(1), 0349-0360. https://doi.org/10.30598/barekengvol18iss1pp0349-0362

Wang, X. (2009). User manual for COMCOT version 1.7 (First Draft). http://ceeserver.cee.conell.edu.//phllgroup/comcot_down.htm

Wanger, T. C., Ainun, N., Brook, B. W., Friess, D. A., Oh, R. R. Y., Rusdin, A., Smithers, S., & Tjoa, A. (2020). Ecosystem-Based Tsunami Mitigation for Tropical Biodiversity Hotspots. Trends in Ecology & Evolution, 35(2), 96-100. https://doi.org/10.1016/j.tree.2019.10.008

Widada, S. (2016). Analisis Dimensi Fraktal Kejadian Gempa di Laut Banda Indonesia. Jurnal Kelautan Tropis, 19(2), 108-114. https://doi.org/10.14710/jkt.v19i2.837

Widodo, A., Aditama, F. Y., Rochman, J. P. G. N., Karikasari, D., Putra, N. M., & Pribadi, S. (2024). Preliminary study of tsunami simulations on megathrust earthquake scenarios in Pacitan Regency, East Java. Conf. Ser.: Mater. Sci. Eng. https://doi.org/10.1088/1755-1315/1307/1/012004

Zhang, B., Ye, J., Zhou, H., Jeng, D. & Guo, Y. (2024). Enhancing Tsunami Modelling by using N-waves and The Measured Topography of Coral Reef: A study in the South China Sea. Coastal Engineering, 193, 104601. https://doi.org/10.1016/j.coastaleng.2024.104601

Published
2025-04-27

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