Strong Motion Estimation at the Kanaga Landslide, Nasukarasuyama City, Induced by the 2011 off the Pacific Coast of Tohoku Earthquake (M W 9.0) Based on Empirical Site Amplification and Phase Effects

Yoshiya Hata,Gonghui Wang,Toshitaka Kamai,Atsushi Nozu

doi:10.1007/978-3-642-32238-9_72

Strong Motion Estimation at the Kanaga Landslide, Nasukarasuyama City, Induced by the 2011 off the Pacific Coast of Tohoku Earthquake (M W 9.0) Based on Empirical Site Amplification and Phase Effects

Yoshiya Hata, Gonghui Wang + Show 2 more

https://doi.org/10.1007/978-3-642-32238-9_72

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Publication Date: Oct 25, 2012

Citations: 2

Affiliation: Nippon Koei (Japan), Prevention Institute, Kyoto University, Port and Airport Research Institute

#Pacific Coast Of Tohoku Earthquake #Empirical Site Amplification + Show 8 more

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Abstract

Many landslides were triggered by the 2011 off the Pacific coast of Tohoku Earthquake (M W 9.0). Among them, a large-scale landslide occurring in Kanaga, Nasukarasuyama City, Tochigi Prefecture, destroyed several houses and killed two people. To clarify the triggering mechanism of this landslide, it is great importance to estimate the seismic waveform at Kanaga Landslide site with higher accuracy, taking into account the site effects. In this study, seismic waveform at the Kanaga Landslide was estimated based on site-effect substitution method, while the site effects were evaluated based on aftershock records. Difference of site effects between the Kanaga Landslide and the nearby strong motion observation stations was presented, and discussed.

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