Estimation of Run Up and Arrival Time of Tsunami in Bali Region Based on TOAST Simulation
Abstract
Bali Island is an area that is flanked by two zones of earthquake potential to cause a tsunami. In this study produced the estimated tsunami heights (run up) and the tsunami arrival times (ETA) by simulating a tsunami with some magnitude variety of the earthquake using software called TOAST. The estimation is obtained by making a scenario of earthquake from parameters of earthquakes that have occurred and raised tsunami on the Bali Island as a reference. The observation area is in some coastal areas of Bali Island. The maximum value of run up is between 21.16 m to 55.6 m with tsunami arrival time is between 120 minutes to less than 15 minutes after an earthquake with 9.6 SR of magnitude. The area around Kuta Beach Badung is an area with high potential for run up.
Downloads
References
[2] McCaffrey R. dan Nabelek J., Earthquakes, Gravity and The Origin of the Bali Basin: An Example of A Naschent Continental Fold and Thrust Belt, Journal of Geophysical Research, vol. 92, 1987, pp. 441-460.
[3] Halauwet Y, Tinjauan Tektonik dan Potensi Bahaya Tsunami di Daerah Bali, BMKG, Jakarta, 2012.
[4] Pribadi S., Pemodelan Tsunami Untuk Peringatan Dini BMG, Buletin Meteorologi Dan Geofisika, vol. 4, 2008, pp. 26-27.
[5] Subandono D. Budiman, Tsunami, edisi I, Buku Ilmiah Populer, Jakarta, 2005. pp. 6-7, 90-92.
[6] Soekarno S.R. Muhammad, Tsunami Blok Daerah Bengkulu, Skripsi, Program sarjana Terapan Geofisika, Akademi Meteorologi dan Geofisika, Jakarta, 2015.
[7] Trisnawati, Analisis Inundasi Tsunami di Bali Selatan Berdasarkan TUNAMI N-2, Skripsi, Program sarjana Terapan Geofisika, Akademi Meteorologi dan Geofisika, Jakarta, 2015.
[8] Horikawa K., Coastal Engineering, An Introduction to Ocean Engineering, University of Tokyo, Tokyo, 1978, pp. 364-365.
[9] Setyonegoro W., Source Analysis of Earthquake on Deformation Processing of Earth Crust Causing Tsunami Potential on a Java Island, Jurnal Badan Meteorologi Klimatologi dan Geofisika, BMKG, vol. 7 no. 4, 2011, pp. 241-248.
[10] JMA (Japan Meteorological Agency), Draft of Manual on Operation Systems for Tsunami Warning Service, Available from: https://www.jma.go.jp, diakses 26 Agustus 2016.
[11] Gunawan I, et al., Katalog Tsunami Indonesia Tahun 416 – 2009, Badan Meteorologi Klimatologi dan Geofisika, Jakarta, 2010.