4. Seismology

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  1. Full paper

    Investigation of the fluid flow dynamic parameters for Newtonian and non-Newtonian materials: an approach to understanding the fluid flow-like structures within fault zones

    To understand the fault zone fluid flow-like structure, namely the ductile deformation structure, often observed in the geological field (e.g., Ramsay and Huber The techniques of modern structure geology, vol....

    H. Tanaka, Y. Shiomi and K.-F. Ma

    Earth, Planets and Space 2017 69:151

    Published on: 2 November 2017

  2. Full paper

    3-D dynamic rupture simulations of the 2016 Kumamoto, Japan, earthquake

    Using 3-D dynamic rupture simulations, we investigated the 2016 Mw7.1 Kumamoto, Japan, earthquake to elucidate why and how the rupture of the main shock propagated successfully, assuming a complicated fault geome...

    Yumi Urata, Keisuke Yoshida, Eiichi Fukuyama and Hisahiko Kubo

    Earth, Planets and Space 2017 69:150

    Published on: 1 November 2017

  3. Full paper

    Dynamics of a fault model with two mechanically different regions

    We consider a fault containing two regions with different mechanical behaviours: a strong, velocity-weakening region (asperity) and a weak, velocity-strengthening region. The fault is embedded in a shear zone ...

    Michele Dragoni and Emanuele Lorenzano

    Earth, Planets and Space 2017 69:145

    Published on: 23 October 2017

  4. Full paper

    Which is heterogeneous, stress or strength? An estimation from high-density seismic observations

    Using data from high-density seismic observation networks installed in the western Nagano Prefecture region in Japan, we precisely determined focal mechanisms and estimated the high-resolution stress field at ...

    Yoshihisa Iio, Itaru Yoneda, Masayo Sawada, Tsutomu Miura, Hiroshi Katao, Yoichiro Takada, Kentaro Omura and Shigeki Horiuchi

    Earth, Planets and Space 2017 69:144

    Published on: 20 October 2017

  5. Full paper

    Source model of the 1703 Genroku Kanto earthquake tsunami based on historical documents and numerical simulations: modeling of an offshore fault along the Sagami Trough

    The 1703 Genroku Kanto earthquake and the resulting tsunami caused catastrophic damage in the Kanto region of Japan. Previous modeling of the 1703 earthquake applied inversion analyses of the observed terrestr...

    Hideaki Yanagisawa and Kazuhisa Goto

    Earth, Planets and Space 2017 69:136

    Published on: 2 October 2017

  6. 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

  7. 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

  8. Express Letter

    Tomographic image of crust and upper mantle off the Boso Peninsula using data from an ocean-bottom seismograph array

    We determined the three-dimensional structure of the crust and upper mantle off the Boso Peninsula, Japan, by analyzing seismograms recorded by ocean-bottom seismometers and land stations between 2011 and 2013...

    Aki Ito, Yojiro Yamamoto, Ryota Hino, Daisuke Suetsugu, Hiroko Sugioka, Masaru Nakano, Koichiro Obana, Kazuo Nakahigashi and Masanao Shinohara

    Earth, Planets and Space 2017 69:118

    Published on: 24 August 2017

  9. 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

  10. 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

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