4. Seismology

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  1. Full paper

    Should tsunami simulations include a nonzero initial horizontal velocity?

    Tsunami propagation in the open ocean is most commonly modeled by solving the shallow water wave equations. These equations require initial conditions on sea surface height and depth-averaged horizontal partic...

    Gabriel C. Lotto, Gabriel Nava and Eric M. Dunham

    Earth, Planets and Space 2017 69:117

    Published on: 23 August 2017

  2. 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

  3. 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

  4. 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

  5. Full paper

    Variations in seismic velocity distribution along the Ryukyu (Nansei-Shoto) Trench subduction zone at the northwestern end of the Philippine Sea plate

    The Ryukyu (Nansei-Shoto) island arc-trench system, southwest of Japan, is formed by the subduction of the Philippine Sea (PHS) plate. Among the subduction zones surrounding the Japan Islands, the Ryukyu arc-t...

    Azusa Nishizawa, Kentaro Kaneda, Mitsuhiro Oikawa, Daishi Horiuchi, Yukari Fujioka and Chiaki Okada

    Earth, Planets and Space 2017 69:86

    Published on: 29 June 2017

  6. Express Letter

    Spatial variation in coda Q in the northeastern part of Niigata–Kobe Tectonic Zone, central Japan: implication of the cause of a high strain rate zone

    We have analyzed the spatial variation in coda Q in the northeastern part of a high strain rate zone, the Niigata–Kobe Tectonic Zone (NKTZ), to investigate the cause of the high strain rate by correlating coda Q ...

    Masanobu Dojo and Yoshihiro Hiramatsu

    Earth, Planets and Space 2017 69:76

    Published on: 5 June 2017

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