Tsunami run-up heights of the 2004 off the Kii peninsula earthquakes
- 203 Downloads
A tsunami height survey was conducted immediately after the 2004 off the Kii peninsula earthquakes. Results of the survey show that the largest tsunami height was about 4.6 m locally at Kiho-cho, Mie prefecture. Numerical simulation of the tsunami due to the earthquake was carried out using the model parameters estimated by NIED. The distribution pattern of the observed tsunami heights along the coast cannot be explained by the computed heights, because the model equation is linear long-wave theory and the run-up computations with a finer grid system are not included in this simulation. In order to explain tsunami run-up heights, it is necessary that the non-linear and run-up computation model should be used with a finer grid system.
Key wordsThe 2004 off the Kii peninsula earthquakes tsunami height survey tsunami numerical simulation
- Okada, Y., Surface deformation due to shear and tensile faults in a halfspace, Bull. Seismol. Soc. Am., 75, 1135–1154, 1985.Google Scholar
- Research Institute for Earth Science and Disaster Prevention (NIED), http://www.fnet.bosai.go.jp/freesia/event/tdmt/20040905235800/update1/index.html, 2004.
- Yamanaka, EIC Seismological Note No. 152: Offshore Southeast of the Kii Peninsula Earthquakes, http://www.eri.u-tokyo.ac.jp/sanchu/Seismo_Note/2004/EIC152.html, 2004 (in Japanese).Google Scholar