Advanced SearchSearch Tips
Analysis of Tsunami Resonance and Impact in Coastal Waters
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Analysis of Tsunami Resonance and Impact in Coastal Waters
Lee, Joong-Woo; Kim, Kyu-Kwang; Yamazaki, Yoshiki; Cheung, Kwok Fai; Yamanaka, Ryoichi;
  PDF(new window)
Recently, extreme tsunami waves generated by submarine earthquake have caused tremendous damages to the coastal cities and ports. Strong seiche oscillations and runups are observed in specific sea areas around the world. Although no frequent impacts to the coast of Korean peninsula, there exist some important events in the east of Korea in the past. This study focuses on two historical events and recalculate with different fault and rupture mechanism for prediction considering the recent trend of submarine earthquake. The present study of the 1983 Akita tsunamis demonstrates the multi-scale resonance along continental coasts. Together with the Nankai tsunami for inland sea, we have confirmed the inland sea resonance surrounded by islands in defining the impact along the coast. Coherence and wavelet analyses for deducing a predominant period and time frequency are useful in reasoning the inundation. The resonance modes, which are largely independent of the tsunami source, allow identification of at-risk communities and infrastructure for mitigation of tsunami hazards. Furthermore, understanding of the resonance and the predicted runups for the site of power plant and industrial complex in the east coast of Korea would allow better preparation for the future disasters.
earthquake;Tsunami;fault;runup;nested grids;amplitude spectra;resonance;
 Cited by
Aida, I. (1981), "Numerical Experiments for the Tsunamis Generated off the Coast of the Nankaido District", Bull. Eqrthq. Res. Inst. Univ. Tokyo, Vol.56, pp.713-730.

Aida, I. (1984), "A Source Model of the Tsunami Accompanying the 1983 Nihonkai-Chubu Earthquake", Bull. Eqrthq. Res. Inst. Univ. Tokyo, Vol.59, pp.93-104.

Kim, K.K., Lee, J.W., Kang, S.J., Kwon, S.H., and Lee, H.H. (2011), "Basic Study on Tsunami Disaster Mitigation for Ship Navigation in Inland Sea", 2011 Proc. of KINPR, Fall (in Korean)., Vol.2011, pp.219-220.

MKE (2010), "Nuclear Power, Our Hope for Low Carbon and Green Growth", 25th Korea Atomic Industrial Forum.

Munger, S. and Cheung, K.F. (2008), "Resonance in Hawaii waters from the 2006 Kuril Islands Tsunami", Geophysical Research Letters, Vol.35, L07605, pp.1-7.

Rabinovich, A.B. and Monserrat, S. (1998), "Generation of Meteorological Tsunamis (Large Amplitude Seiches) near the Balearic and Kuril Islands", Natural Hazards, Vol.18, No.1, pp.27-55. crossref(new window)

Roeber, V., Yamazaki, Y., and Cheung, K.F. (2010), "Resonance and impact of the 2009 Samoa Tsunami around Tutuila", American Samoa, Geophysical Research Letters, Vol.37, L21604, pp.1-8

Yamazaki, Y. (2010), "Depth-integrated, Non-hydrostatic Model with Grid Nesting for Tsunami Generation, Propagation, and Runup", PhD Dissertation, Ocean Resources Engineering, University of Hawaii at Manoa.

Yamazaki, Y. and Cheung, K.F. (2011), "Shelf resonance and Impact of near-field tsunami generated by the 2010 Chile earthquake", Geophysical Research Letters, Vol.38, L12605, pp.1-8