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Effect of Surface Geology on Seismic Motion: Challenges of Applying Ground Motion Simulation to Seismology and Earthquake Engineering

Edited by: Kuo-Liang Wen, Pierre-Yves Bard, Francisco-Jose Sanchez-Sesma, Sadanori Higashi, Tomotaka Iwata, Takuto Maeda

In the past few decades, the study on site effects of seismic ground motions induced by surface geology and subsurface structures (Effects of Surface Geology on seismic motion, ESG) are progressing for understanding strong ground motion characteristics during disastrous earthquakes and for predicting strong ground motions for future events, with increasing numbers of strong motion data and computer powers. There are still huge earthquake disasters occurring all over the world and the researches for quantification of ESG should be emphasized for earthquake disaster mitigations because of their significant influence on strong motions. In this coming summer, the 5th International Conference on Effects of Surface Geology on Seismic Motions (ESG5) will be held in Taipei, Taiwan and there are about 140 papers from over 20 countries to be presented. On this occasion, we would like to propose to publish special issue or issues for recent progress of study on ESG in EPS journal to share the present status on this study area. We are expecting that many of the authors who contribute to ESG5 will submit their papers to this EPS special issue(s) but we would not exclude any authors who do not participate in ESG5 but write relevant papers. We believe that this special issue(s) will attract broad spectrum of readers and contribute to stimulate discussion on new paradigms of future ESG studies and seismology in general.

  1. Full paper

    Difference of horizontal-to-vertical spectral ratios of observed earthquakes and microtremors and its application to S-wave velocity inversion based on the diffuse field concept

    We have been discussing the validity of using the horizontal-to-vertical spectral ratios (HVRs) as a substitute for S-wave amplifications after Nakamura first proposed the idea in 1989. So far a formula for HV...

    Hiroshi Kawase, Yuta Mori and Fumiaki Nagashima

    Earth, Planets and Space 2018 70:1

    Published on: 2 January 2018

  2. Full paper

    Application of a simplified calculation for full-wave microtremor H/V spectral ratio based on the diffuse field approximation to identify underground velocity structures

    Under the diffuse field approximation, the full-wave (FW) microtremor H/V spectral ratio (H/V) is modeled as the square root of the ratio of the sum of imaginary parts of the Green’s function of the horizontal co...

    Hao Wu, Kazuaki Masaki, Kojiro Irikura and Francisco José Sánchez-Sesma

    Earth, Planets and Space 2017 69:162

    Published on: 4 December 2017

  3. Full paper

    V S30, slope, H 800 and f 0: performance of various site-condition proxies in reducing ground-motion aleatory variability and predicting nonlinear site response

    The aim of this paper is to investigate the ability of various site-condition proxies (SCPs) to reduce ground-motion aleatory variability and evaluate how SCPs capture nonlinearity site effects. The SCPs used ...

    Boumédiène Derras, Pierre-Yves Bard and Fabrice Cotton

    Earth, Planets and Space 2017 69:133

    Published on: 22 September 2017

  4. Full paper

    Analysis of rotation sensor data from the SINAPS@ Kefalonia (Greece) post-seismic experiment—link to surface geology and wavefield characteristics

    Although rotational seismology has progressed in recent decades, the links between rotational ground motion and site soil conditions are poorly documented. New experiments were performed on Kefalonia Island (G...

    Sarah Sbaa, Fabrice Hollender, Vincent Perron, Afifa Imtiaz, Pierre-Yves Bard, Armand Mariscal, Alain Cochard and Alain Dujardin

    Earth, Planets and Space 2017 69:124

    Published on: 11 September 2017

  5. Full paper

    Surface wave group velocity in the Osaka sedimentary basin, Japan, estimated using ambient noise cross-correlation functions

    Inter-station cross-correlation functions estimated using continuous ambient noise or microtremor records were used to extract the seismic wave propagation characteristics of the Osaka sedimentary basin, Japan...

    Kimiyuki Asano, Tomotaka Iwata, Haruko Sekiguchi, Kazuhiro Somei, Ken Miyakoshi, Shin Aoi and Takashi Kunugi

    Earth, Planets and Space 2017 69:108

    Published on: 15 August 2017

  6. Full paper

    Estimation of 1-D velocity models beneath strong-motion observation sites in the Kathmandu Valley using strong-motion records from moderate-sized earthquakes

    The Himalayan collision zone experiences many seismic activities with large earthquakes occurring at certain time intervals. The damming of the proto-Bagmati River as a result of rapid mountain-building proces...

    Subeg M. Bijukchhen, Nobuo Takai, Michiko Shigefuji, Masayoshi Ichiyanagi, Tsutomu Sasatani and Yokito Sugimura

    Earth, Planets and Space 2017 69:97

    Published on: 24 July 2017

  7. Full paper

    Deriving amplification factors from simple site parameters using generalized regression neural networks: implications for relevant site proxies

    Most modern seismic codes account for site effects using an amplification factor (AF) that modifies the rock acceleration response spectra in relation to a “site condition proxy,” i.e., a parameter related to ...

    Ahmed Boudghene Stambouli, Djawad Zendagui, Pierre-Yves Bard and Boumédiène Derras

    Earth, Planets and Space 2017 69:99

    Published on: 24 July 2017

  8. Express Letter

    Recovery process of shear wave velocities of volcanic soil in central Mashiki Town after the 2016 Kumamoto earthquake revealed by intermittent measurements of microtremor

    An earthquake of JMA magnitude 6.5 (foreshock) hit Kumamoto Prefecture, Japan, at 21:26 JST on April 14, 2016. Subsequently, an earthquake of JMA magnitude 7.3 (main shock) hit Kumamoto and Oita Prefectures a...

    Yoshiya Hata, Masayuki Yoshimi, Hiroyuki Goto, Takashi Hosoya, Hitoshi Morikawa and Takao Kagawa

    Earth, Planets and Space 2017 69:72

    Published on: 22 May 2017

  9. Full paper

    Using ambient vibration measurements for risk assessment at an urban scale: from numerical proof of concept to Beirut case study (Lebanon)

    Post-seismic investigations repeatedly indicate that structures having frequencies close to foundation soil frequencies exhibit significantly heavier damages (Caracas 1967; Mexico 1985; Pujili, Ecuador 1996; L...

    Christelle Salameh, Pierre-Yves Bard, Bertrand Guillier, Jacques Harb, Cécile Cornou, Jocelyne Gérard and Michelle Almakari

    Earth, Planets and Space 2017 69:60

    Published on: 26 April 2017

  10. Letter

    Assessment of nonlinear site response at ocean bottom seismograph sites based on S-wave horizontal-to-vertical spectral ratios: a study at the Sagami Bay area K-NET sites in Japan

    We analyzed S-wave horizontal-to-vertical (S-H/V) spectral ratios at six ocean bottom seismograph (OBS) sites of K-NET located in the Sagami Bay area of Japan for nonlinear site responses. The degree of nonlin...

    Yadab P. Dhakal, Shin Aoi, Takashi Kunugi, Wataru Suzuki and Takeshi Kimura

    Earth, Planets and Space 2017 69:29

    Published on: 8 February 2017