Articles | Volume 23, issue 2
https://doi.org/10.5194/nhess-23-507-2023
https://doi.org/10.5194/nhess-23-507-2023
Research article
 | 
06 Feb 2023
Research article |  | 06 Feb 2023

Tsunami scenario triggered by a submarine landslide offshore of northern Sumatra Island and its hazard assessment

Haekal A. Haridhi, Bor Shouh Huang, Kuo Liang Wen, Arif Mirza, Syamsul Rizal, Syahrul Purnawan, Ilham Fajri, Frauke Klingelhoefer, Char Shine Liu, Chao Shing Lee, Crispen R. Wilson, Tso-Ren Wu, Ichsan Setiawan, and Van Bang Phung

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Cited articles

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Araki, E., Shinohara, M., Obana, K., Yamada, T., Kaneda, Y., Kanazawa, T., and Suyehiro, K.: Aftershock distribution of the 26 December 2004 Sumatra-Andaman earthquake from ocean bottom seismographic observation, Earth, Planets Sp., 58, 113–119, https://doi.org/10.1186/bf03353367, 2006. 
Badan Metereologi Klimatologi dan Geofisika: Pedoman Pelayanan Peringatan Dini Tsunami InaTEWS Edisi kedua, BMKG, Jakarta, 158 pp., 2012. 
Barber, A. J. and Milsom, J. S. (Eds): Sumatra: geology, resources and tectonic evolution, Geological Society of London, Oxford, 1–304, https://doi.org/10.1144/GSL.MEM.2005.031, 2005. 
Berglar, K., Gaedicke, C., Ladage, S., and Thöle, H.: The Mentawai forearc sliver off Sumatra: A model for a strike-slip duplex at a regional scale, Tectonophysics, 710–711, 225–231, https://doi.org/10.1016/j.tecto.2016.09.014, 2017. 
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Short summary
Near the northern end of Sumatra, the horizontal movement Sumatran fault zone extended to its northern offshore. The movement of offshore fault segments trigger submarine landslides and induce tsunamis. Scenarios of a significant tsunami caused by the combined effect of an earthquake and its triggered submarine landslide at the coast were proposed in this study. Based on our finding, the landslide tsunami hazard assessment and early warning systems in this region should be urgently considered.
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