Simulation analysis of long period ground motions in coastal area of ise bay during the 2011 Tohoku earthquake and amplification characteristics depending on azimuthal angles of S-wave incidence

Junichi Tendo, Masayuki Nagano, Kento Suzuki

Research output: Contribution to journalArticle

Abstract

During the 2011 Tohoku earthquake, long period ground motions were largely amplified in coastal area of Ise Bay. This report describes the 3-D wave propagation analyses results for the 3-D geological model including sedimentary basin of Nobi Plain by using the 3-D finite difference method. The records are well simulated and the long period ground motions are amplified in the coastal area mainly due to constructive interference of multi-passing waves. We also investigate amplification characteristics for various azimuthal angles of the incident S-wave, showing complexed spatial variation of local amplification.

Original languageEnglish
Pages (from-to)891-896
Number of pages6
JournalAIJ Journal of Technology and Design
Volume22
Issue number52
DOIs
Publication statusPublished - Oct 2016

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Keywords

  • 3-D finite difference method
  • Characteristics of ground amplification
  • Coastal area of Ise Bay
  • Long period ground motion
  • The 2011 Tohoku earthquake

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