Browse > Article

Numerical Simulation of Tsunamis that Affected the Coastal Zone of East Sea  

Kim, Do-Sam (Division of Construction and Environmental Engineering, Korea Maritime University)
Kim, Ji-Min (Department of Civil and Environmental Engineering, Graduate School, Korea Maritime University)
Lee, Kwang-Ho (Department of Civil Engineering, Nagoya University)
Publication Information
Journal of Ocean Engineering and Technology / v.21, no.6, 2007 , pp. 72-80 More about this Journal
Abstract
The tsunami that resulted from the Central East sea Earthquake, which registered 7.7 on the Richter scale, that occurred over the entire water region in Akita on May. 26, 1983 and the tsunami that was triggered by the Southwest off Hokkaido Earthquake (7.8 on the Richter scale) that occurred in Southwest off Hokkaido on July 12, 1993 are representative cases that led to considerable damage in life and property, not only in Japan but also in Korea. In this study, multi-grid method was used in order to reproduce sufficiently the shoaling effect that occurs as water depth becomes shallow in the shallow water region and moving boundary condition was introduced to consider the runup in the coastal region. For the tsunamis that exerted considerable effect on the East Sea coast of Korea that were caused by the Central East Sea Earthquake in 1983 and the Southwest off Hokkaido Earthquake in 1993, characteristics like water level rise and propagation in the East Sea coast will be examined using numerical simulations. At the same time, these values will be compared with observed values. In addition, maximum water level rise and change in the water level with respect to time that were caused by the tsunamis were examined at each location along the East sea coast. Usefulness of numerical analysis was verified by comparing with observed values.
Keywords
1983 Central east sea earthquake; 1993 Southwest off Hokkaido earthquake; Tsunami;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Aida, I. (1969). 'Numerical Experiments for Tsunami Caused by Moving Deformations of the Sea Bottom', Bull. Earthquake Res. Inst., Vol 47, pp 673-700
2 Aida, I. (1984). 'A Source Models of the 1983 Nihonkai-earthquakes Tsunami', Proc. Syrnp. Nihonkai Chubu Earthquake Tsunami, JSCE, pp 9-21
3 Mansinha, L. and Smylie, D.E. (1971). 'The Displacement Fields of Inclined Faults', Bull. Seismol. Soc. Amer., Vol 61, No 5, pp 1433-1440
4 양금석 (2007). 일본근해에 기원한 지진해일이 동해연안의 수위변동에 미치는 영향의 평가, 한국해양대학교 석사학위논문
5 Takahashi, T., Shuto, N., lmammura, F. and Ortis, M. (1994). 'Fault Model to Describe Hokkaido Nansei Offshore Earthquake for Tsunami', JSCE, Vol 41, pp 251-255
6 국립방재연구소 (1998). 동해안에서의 지진해일 위험도 평가, 국립방재연구소 연구보고서, NID-98-06