Author details

events with Mw7.8, given the inherent uncertainty in source parameters. Aside from tsunami height, arrival time, inundation height, and inundation area, we calculated the seismic intensity and the liquefaction occurrence rate by simplified methods. Our findings in the present

• In Case 2 (Mw7.8), the slip displacement on the fault is double that of Case 1 (Mw7.6), meaning that the tsunami height is nearly double in the vicinity of the fault, although in the coastal area away from the fault the tsunami height is 1.5 times. In this analysis, the nonlinear long-wave equations are solved for the whole region, and in the coastal area near the land, the water becomes shallow and the effect of the submarine friction term

• Comparing Case 2 with Case 1, the inundation area increased 2.2 times in the Wakasa Sea Knoll Chain fault and 2.9 times north off the Noto Peninsula fault, 4.2 times east off the Noto Peninsula fault. In Case 2, the slip displacement on the fault is double that of Case 1,

• The overall distribution characteristics of tsunami height change significantly for each of the three faults; except in the vicinity of the fault, the tsunami height at the Noto Peninsula tends to be high. In particular, it is predicted that Suzu City, Ishikawa Prefecture, located at the tip of the Noto Peninsula, has a high tsunami and broad inundation areas compared

• Our results indicated that Suzu City in Ishikawa Prefecture, located in the northeastern part of the Noto Peninsula, has a relatively high potential risk of tsunami as well as strong motion and liquefaction. Thus, Suzu City would represent a highly appropriate area in

• The inundation area of a tsunami is likely to occur in the coastal lowland, where strong ground motion may induce building damage and soil liquefaction. Therefore, it is important to examine the impact of damage caused by ground shaking on evacuation route and evacuation time. This is not limited to Suzu City but is common to the entire area where there is flooding caused by the tsunami and provides an important perspective for future

We would like to express our gratitude to Mr. Akira Anju of Kozo Keikaku Engineering Inc. for various advices on numerical calculation. A part of this research is supported by Fukui Prefecture's FY 2004 University Collaborative Research Promotion Project (representative, Prof. Keisuke Kojima) and Grants-in-Aid for Scientific Research (C) (16 K01316) (representative,

which to promote disaster prevention education in the Hokuriku region.

but the inundation area of the tsunami is much greater than that.

study are summarized as follows.

144 Natural Hazards - Risk Assessment and Vulnerability Reduction

increases.

with other areas.

damage estimation.

Acknowledgements

Michihiro Ohori).

Michihiro Ohori<sup>1</sup> \*, Yuri Masukawa2,3 and Keisuke Kojima4

\*Address all correspondence to: ohorim@u-fukui.ac.jp

