Field Survey of Flank Collapse and Run-up Heights due to 2018 Anak Krakatau Tsunami


Miguel Esteban Waseda University, Tokyo, JapanTomoyuki Takabatake Waseda University, Tokyo, JapanHendra Achiari Bandung Institute of Technology (ITB), Bandung, IndonesiaTakahito Mikami Tokyo City University, Tokyo, JapanRyota Nakamura Niigata University, Niigata, JapanMustarakh Gelfi Institut Teknologi Sumatera (ITERA), Lampung, IndonesiaSatriyo Panalaran Institut Teknologi Sumatera (ITERA), Lampung, IndonesiaYuta Nishida Waseda University, Tokyo, JapanNaoto Inagaki Waseda University, Tokyo, JapanChristopher Chadwick Liverpool John Moores University, Liverpool, UKKota Oizumi Niigata University, Niigata, JapanTomoya Shibayama Waseda University, Tokyo, Japan



field survey, Krakatau, tsunami, runup


On the 22nd of December 2018 tsunami waves generated by the flank collapse of the Anak Krakatau volcano in Indonesia flooded the shorelines of the nearby Sumatra and Java islands. The authors conducted a field survey of the Krakatau group of islands to clarify the volume of the collapsed flank and the run-up of the tsunami around the island themselves. To aid with the simulation of this complex tsunami and document the current situation of the islands, bathymetric surveys, aerial drone and panoramic video mapping were also carried out. The results show that while much of the source directionality was towards the SE of Anak Krakatau, significant wave run-ups were also measured towards the NW, indicating that further numerical modelling is needed to fully explain this event.  


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How to Cite

Esteban, M., Takabatake, T., Achiari, H., Mikami, T., Nakamura, R., Gelfi, M., … Shibayama, T. (2021). Field Survey of Flank Collapse and Run-up Heights due to 2018 Anak Krakatau Tsunami. Journal of Coastal and Hydraulic Structures, 1, 1.