4. Seismology

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  1. 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

  2. Frontier letter

    Quasi-Cartesian finite-difference computation of seismic wave propagation for a three-dimensional sub-global model

    A simple and efficient finite-difference scheme is developed to calculate seismic wave propagation in a partial spherical shell model of a three-dimensionally (3-D) heterogeneous global Earth structure for mod...

    Hiroshi Takenaka, Masanao Komatsu, Genti Toyokuni, Takeshi Nakamura and Taro Okamoto

    Earth, Planets and Space 2017 69:67

    Published on: 12 May 2017

  3. 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

  4. Full paper

    Alteration and dehydration of subducting oceanic crust within subduction zones: implications for décollement step-down and plate-boundary seismogenesis

    The alteration and dehydration of predominantly basaltic subducting oceanic crustal material are thought to be important controls on the mechanical and hydrological properties of the seismogenic plate interfac...

    Jun Kameda, Sayako Inoue, Wataru Tanikawa, Asuka Yamaguchi, Yohei Hamada, Yoshitaka Hashimoto and Gaku Kimura

    Earth, Planets and Space 2017 69:52

    Published on: 18 April 2017

  5. Letter

    Local site effects in Kumamoto City revealed by the 2016 Kumamoto earthquake

    To evaluate local site effects in Kumamoto City, we installed six temporary seismic stations along a 6-km north–south survey line in the city immediately after the 2016 Kumamoto earthquake foreshock (Mj 6.4),...

    Seiji Tsuno, Masahiro Korenaga, Kyosuke Okamoto, Hiroaki Yamanaka, Kosuke Chimoto and Takeshi Matsushima

    Earth, Planets and Space 2017 69:37

    Published on: 7 March 2017

  6. Express Letter

    Anelastic properties beneath the Niigata–Kobe Tectonic Zone, Japan

    We estimate the three-dimensional (3D) P-wave attenuation structure beneath the Niigata–Kobe Tectonic Zone (NKTZ), central Japan, using high-quality waveform data from a large number of stations. The obtained ...

    Junichi Nakajima and Toru Matsuzawa

    Earth, Planets and Space 2017 69:33

    Published on: 22 February 2017

  7. Letter

    Upper boundaries of the Pacific and Philippine Sea plates near the triple junction off the Boso Peninsula deduced from ocean-bottom seismic observations

    We determined hypocenter distributions and focal mechanisms of earthquakes off the Boso Peninsula, Japan, based on seafloor observations using ocean-bottom seismometers (OBSs). From OBS data, we detected and l...

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

    Earth, Planets and Space 2017 69:30

    Published on: 9 February 2017

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