NUMERICAL ANALYSIS OF TSUNAMIS GENERATED BY SEA BOTTOM ERUPTIONS OF THE SAKURAJIMA VOLCANO
ICCE 2014 Cover Image
PDF

Keywords

Sea bottom eruption
Closed basin
Multiple reflection
Volcanic tsunamis

How to Cite

Sakai, R., & Asano, T. (2014). NUMERICAL ANALYSIS OF TSUNAMIS GENERATED BY SEA BOTTOM ERUPTIONS OF THE SAKURAJIMA VOLCANO. Coastal Engineering Proceedings, 1(34), currents.3. https://doi.org/10.9753/icce.v34.currents.3

Abstract

Responding to the devastating damage caused by the Great East Japan Earthquake, coastal researchers and practitioners start to investigate the possible reactions towards supposed maximum tsunamis throughout Japan. In Kagoshima prefecture, caution should be paid on not only seismic tsunamis along plate boundaries, but also volcanic tsunamis caused by sea bottom eruptions near the Sakurajima Island. Since the energy of tsunamis occurred in the domain north of Sakurajima Island is confined in the closed basin, the fluctuating motions are possibly totally different from those in open sea areas. The present study conducts numerical analyses on the tsunami propagations by varying the source points and sea bottom deformations, and investigates the characteristics of the tsunamis inherent to the closed water basins.
https://doi.org/10.9753/icce.v34.currents.3
PDF

References

Tanimoto, K et al. 1983. Field and laboratory investigations of the Tsunami caused by 1983 Nihonkai Chubu Earthquake, Report Port and Harbor Research Institute, No.470, 299pp. (in Japanese).

Kawamata, S., F. Imamura and N. Shuto. 1992. Numerical calculations on tsunamis caused by 1883 Krakatau Eruption, Proc. of Coastal Engineering in Japan, Vol.39, 226-230. (in Japanese).

Imura, R. 1998. Reconstruction of the sequence of the An-ei eruption of Sakurajima volcano using the historical records, Kazan, Vol.43, No. 5, 373-383. (in Japanese).

Tsuji, Y. 1997. Volcanic activity and tsunami generation, Volcano and Magma, Edited by Kaneoka, I and Y. Ida, Tokyo University Press, 194-214. (in Japanese).

Tsuji, Y. and K. Ueda. 1996. Tsunamis in Kagoshima bay associated with An-ei Sakurajima eruption, Proc . of Fall meeting of Japanese Society of Volcano, p.186. (in Japanese).

Kobayashi, T. 2001. Volcanic interpretation on the records of Sakurajima An-ei eruption(1779) -On the generations of An-ei Islands-, Proc . of annual meeting of Japanese Society of Volcano, p.7. (in Japanese).

Kobayashi, N., DeSilva G.S. and K. D. Watson. 1989. Wave transformation and swash oscillation on gentle and steep slopes, J. Geophysical Research, Vol.94, No.C1, 951-966.

Authors retain copyright and grant the Proceedings right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this Proceedings.