Abstract

During a scenario earthquake with MW9.0 along the Nankai Trough, action of not only strong motion but also huge tsunami is predicted in Kushimoto Town, Wakayama Prefecture, Japan. In this study, first, based on the empirical relationship between microtremor H/V spectrum and site amplification factor, the site amplification factors at the 525 sites in the tsunami attack area were evaluated. Seismic waveforms in the area were then predicted with very high density based on the SMGA models considering the empirical site amplification factors. Using the detailed distribution of several indices due to the predicted seismic waveforms, finally, we discussed the influence which the action of the strong motion has on tsunami evacuation. The summarized evaluation and related discussion will be useful in future study of regional earthquake disaster prevention by tsunami evacuation.

Keywords:
engineering, site amplification factor, wakayama prefecture, ground motion, evaluation, seismic intensity, high density, strong motion, reservoir characterization, microtremor measurement
Subjects:
Reservoir Characterization, Seismic processing and interpretation
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2015. International Society of Offshore and Polar Engineers
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