Comcot 1.7 Modeling To Estimate The Maximum Height And Arrival Time Of The Tsunami In Tombariri Sub-District
DOI:
https://doi.org/10.35800/jip.v13i1.57487Keywords:
Comcot, Tsunami Modeling, Inundation, Numeric SimulationAbstract
Tombariri Sub-District is located on the North Coast of the Minahasa Peninsula, directly opposite the North Sulawesi Subduction. North Sulawesi subduction has the potential for earthquakes with a targeted magnitude of M8.5 that can generate tsunamis. In addition, Tombariri Sub-District has a fairly large population density and is located on the coast. This causes the Tombariri Sub-District to be highly vulnerable to tsunami hazards. This study aims to determine the tsunami's estimated maximum height and arrival time. The modeling method in this study is through the Comcot 1.7 application with the worst-case scenario of North Sulawesi Subduction M8.5. The results of this study showed that the maximum height of the tsunami reached 6.17 m. The estimated time of tsunami arrival in Tombariri District ranges from 5-10 minutes. The results of this study can be used as a means of mitigating tsunami disasters.
Keywords: Comcot, Tsunami Modeling, Inundation, Numeric Simulation
Abstrak
Kecamatan Tombariri terletak di wilayah Pesisir Utara Semenanjung Minahasa yang berhadapan langsung dengan Subduksi Sulawesi Utara. Subduksi Sulawesi Utara memiliki potensi gempabumi dengan magnitudo tertarget M8.5 yang dapat membangkitkan tsunami. Selain itu, Kecamatan Tombariri memiliki kepadatan penduduk yang cukup besar dan berada di wilayah pesisir. Hal ini menyebabkan Kecamatan Tombariri memiliki tingkat kerawanan terhadap bahaya tsunami yang tinggi. Penelitian ini bertujuan untuk mengetahui estimasi ketinggian maksimum dan waktu tiba tsunami. Metode pemodelan dalam penelitian ini melalui aplikasi Comcot 1.7 dengan skenario terburuk Subduksi Sulawesi Utara M8,5. Hasil dari penelitian ini menunukkan bahwa tinggi maksimum tsunami mencapai 6,17 m. Estimasi waktu tiba tsunami di Kecamatan tombariri berkisar antara 5 - 10 menit. Hasil dari penelitian ini dapat digunakan sebagai sarana mitigasi bencana tsunami.
Kata Kunci : Comcot, Pemodelan tsunami, Simulasi Numerik.
References
Blaser, L., & dkk. (2010). Scaling relation of earthquake source parameter estimates with special focus on subduction environment. Bulletin of seismological society of america, vol. 100, no. 6, 2914-2926.
BPS. (2022). Tombariri dalam Angka 2022. Minahasa: BPS Kabupaten Minahasa.
Fatimah, A. (2023). Pemodelan Numerik Tsunami untuk Mengestimasi Waktu Tiba dan Ketinggian Maksimum Gelombang Tsunami di Teluk Amurang. EULER: Jurnal Ilmiah Matematika, Sains dan Teknologi, 8-15.
Lampela, K. (2019). Tsunami Shoaling Theory. Earthquake Resistant Enginering Structures XII (hal. 121 -128). WIT Transactions on The Built Environment.
Pattiarattchi, C. (2020). influence of Ocean Topography on Tsunami Propagation in Western Australia. Journal of Marine Science and Engineering , 1-16.
Purwanto, H., Listyani, T., Isjudarto, A., & Kusumayuda, S. (2008). Mewaspadai Morfologi Teluk sebagai Zona Bahaya Tsunami. Jurnal Ilmiah MTG, vol.1 no.1.
PUSGEN. (2017). Peta Sumber dan Bahaya Gempa Indonesia Tahun 2017. Jakarta: Kementrian PUPR.
Socquet, A., Simmons, W., Vidny, C., MoCaffrey, R., Subarya , C., Sarsito, D., . . . Spakman, W. (2006). Microblock rotations and fault coupling in SE Asia triple junction. JOURNAL OF GEOPHYSICAL RESEARCH.
Wahyu, R. O. (2018). Pemodelan Inundasi Tsunami di Sepanjang Pesisir Kota Manado Akibat Gempabumi M8,5 di Zona Subduksi Sulawesi Utara. Jurnal Meteorologi dan Geofisika Vol.19 No.1, 13-18.
Wang, X., & Power, W. (2011). Comcot: a Tsunami Generation Propagation and Run-up Model. Institut of Geological and Nuclear Sciences.
Wells, D., & Coppersmith, K. (1994). New Empirical Relationships among Magnitude, Rupture Length, Rupture Width, Rupture Area, and Surface Displacement. Bulletin of the Seismological Society of America, Vol. 84, No 4, 974 - 1002.
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