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  1. In this study, we develop stochastic random-field slip models for the 2011 Tohoku earthquake and conduct a rigorous sensitivity analysis of tsunami hazards with respect to the uncertainty of earthquake slip an...

    Authors: Katsuichiro Goda, Paul Martin Mai, Tomohiro Yasuda and Nobuhito Mori
    Citation: Earth, Planets and Space 2014 66:105
    Content type: Full paper Published on:

  2. The extended Canadian Middle Atmosphere Model (eCMAM) was recently run in a nudged mode using reanalysis data from the ground to 1 hPa for the period of January 1979 to June 2010 (hence the name eCMAM30). In t...

    Authors: Quan Gan, Jian Du, William E Ward, Stephen R Beagley, Victor I Fomichev and Shaodong Zhang
    Citation: Earth, Planets and Space 2014 66:103
    Content type: Full paper Published on:

  3. Preliminary results of the analyses of five carbonaceous materials (particle size of approximately 50 μm) from the Hayabusa spacecraft sample catcher, including their texture, chemistry, and chemical/isotopic ...

    Authors: Masayuki Uesugi, Hiroshi Naraoka, Motoo Ito, Hikaru Yabuta, Fumio Kitajima, Yoshinori Takano, Hajime Mita, Ichiro Ohnishi, Yoko Kebukawa, Toru Yada, Yuzuru Karouji, Yukihiro Ishibashi, Takaaki Okada and Masanao Abe
    Citation: Earth, Planets and Space 2014 66:102
    Content type: Letter Published on:

  4. The 2011 Fukushima-ken Hamadori earthquake (MW 6.6) occurred about a month after the 2011 Great Tohoku earthquake (MW 9.0), and it is thought to have been induced by the 2011 Tohoku earthquake. After the 2011 Ham...

    Authors: Miho Tanaka, Kimiyuki Asano, Tomotaka Iwata and Hisahiko Kubo
    Citation: Earth, Planets and Space 2014 66:101
    Content type: Letter Published on:

  6. Continuous 3-year records of broadband ocean-bottom seismometers and pressure gauges of the seafloor network (Dense Oceanfloor Network System for Earthquakes and Tsunamis (DONET)) in the Nankai Trough region m...

    Authors: Yoko Tono, Kiwamu Nishida, Yoshio Fukao, Akiko To and Narumi Takahashi
    Citation: Earth, Planets and Space 2014 66:99
    Content type: Letter Published on:

  7. Long-term systematic observations of noctilucent clouds in the regions of Moscow (Russia), Vilnius (Lithuania), and La Ronge (Canada) are considered. Variables, describing the seasonal activity of noctilucent ...

    Authors: Nikolay Pertsev, Peter Dalin, Vladimir Perminov, Vitaly Romejko, Audrius Dubietis, Ričardas Balčiunas, Kazimieras Černis and Mark Zalcik
    Citation: Earth, Planets and Space 2014 66:98
    Content type: Letter Published on:

  10. This paper describes a neural network-based model developed to predict geomagnetic storms time K index as measured at a magnetic observatory located in Hermanus (34°25 S; 19°13 E), South Africa. The parameters us...

    Authors: Jean Uwamahoro and John Bosco Habarulema
    Citation: Earth, Planets and Space 2014 66:95
    Content type: Full paper Published on:

  11. Comprehensive behavior of the low-latitude upper atmosphere during sudden stratospheric warming (SSW) events at varying levels of solar activity has been investigated. The equatorial electrojet (EEJ) strength ...

    Authors: Fazlul I Laskar, Duggirala Pallamraju and Bhaskara Veenadhari
    Citation: Earth, Planets and Space 2014 66:94
    Content type: Full paper Published on:

  12. The composition of continental subduction-zone fluids varies dramatically from dilute aqueous solutions at subsolidus conditions to hydrous silicate melts at supersolidus conditions, with variable concentratio...

    Authors: Yong-Fei Zheng and Joerg Hermann
    Citation: Earth, Planets and Space 2014 66:93
    Content type: Frontier letter Published on:

  14. Since isotopic ratios of H, C, and N are sensitive indicators for determining extraterrestrial organics, we have measured these isotopes of Hayabusa category 3 organic samples of RB-QD04-0047-02, RA-QD02-0120,...

    Authors: Motoo Ito, Masayuki Uesugi, Hiroshi Naraoka, Hikaru Yabuta, Fumio Kitajima, Hajime Mita, Yoshinori Takano, Yuzuru Karouji, Toru Yada, Yukihiro Ishibashi, Tatsuaki Okada and Masanao Abe
    Citation: Earth, Planets and Space 2014 66:91
    Content type: Letter Published on:

  15. We measured fluid transport properties at an effective pressure of 40 MPa in core samples of sediments and fault rocks collected by the Integrated Ocean Drilling Program (IODP) NanTroSEIZE drilling project Exp...

    Authors: Wataru Tanikawa, Hideki Mukoyoshi, Weiren Lin, Takehiro Hirose and Akito Tsutsumi
    Citation: Earth, Planets and Space 2014 66:90
    Content type: Letter Published on:

  16. Here we report microchemical and microstructural features indicative of space weathering in a particle returned from the surface of asteroid Itokawa by the Hayabusa mission. Space weathering features include p...

    Authors: Michelle S Thompson, Roy Christoffersen, Thomas J Zega and Lindsay P Keller
    Citation: Earth, Planets and Space 2014 66:89
    Content type: Frontier letter Published on:

  17. Three-dimensional nonlinear breaking acoustic-gravity waves (AGWs) propagating from the Earth's surface to the upper atmosphere are simulated numerically. Horizontally moving periodical structures of vertical ...

    Authors: Nikolai M Gavrilov and Sergey P Kshevetskii
    Citation: Earth, Planets and Space 2014 66:88
    Content type: Letter Published on:

  18. After the good results obtained from an assessment of geomagnetically induced currents (GICs) in a relatively small subset of the Spanish power transmission network, we now present the first attempt to assess ...

    Authors: Joan Miquel Torta, Santiago Marsal and Marta Quintana
    Citation: Earth, Planets and Space 2014 66:87
    Content type: Full paper Published on:

  19. To understand the mechanism of an intensive non-volcanic seismic swarm in the Kii Peninsula, Japan, we used a dense seismic linear array to measure fine-scale variations of seismic velocities and converted tel...

    Authors: Aitaro Kato, Atsushi Saiga, Tetsuya Takeda, Takaya Iwasaki and Toru Matsuzawa
    Citation: Earth, Planets and Space 2014 66:86
    Content type: Letter Published on:

  21. High-resolution structure analyses using electron beam techniques have been performed for the investigation of subgrain boundaries (SGBs) in deformed orthopyroxene (Opx) in mylonite from Hidaka Metamorphic Bel...

    Authors: Toshihiro Kogure, Hugues Raimbourg, Akihito Kumamoto, Eiko Fujii and Yuichi Ikuhara
    Citation: Earth, Planets and Space 2014 66:84
    Content type: Full paper Published on:

  22. The West Philippine Basin (WPB) occupies the western part of the Philippine Sea (PHS) plate. The WPB is generally considered to have opened from approximately 50 to 30 Ma at the CBF rift; however, the detailed...

    Authors: Tomohiro Sasaki, Toshitsugu Yamazaki and Osamu Ishizuka
    Citation: Earth, Planets and Space 2014 66:83
    Content type: Letter Published on:

  23. We studied seven Itokawa particles provided by the Japan Aerospace Exploration Agency (JAXA) as first International Announcement of Opportunity (AO) study mainly using electron and synchrotron radiation X-ray ...

    Authors: Takashi Mikouchi, Mutsumi Komatsu, Kenji Hagiya, Kazumasa Ohsumi, Michael E Zolensky, Viktor Hoffmann, James Martinez, Rupert Hochleitner, Melanie Kaliwoda, Yasuko Terada, Naoto Yagi, Masaki Takata, Wataru Satake, Yuya Aoyagi, Atsushi Takenouchi, Yuzuru Karouji…
    Citation: Earth, Planets and Space 2014 66:82
    Content type: Frontier letter Published on:

  24. Investigation of olivine-hosted melt inclusions provides information about the abundance of volatile elements that are often lost during subaerial eruptions of lavas. We have measured the abundances of H2O, CO2, ...

    Authors: Estelle F Rose-Koga, Kenneth T Koga, Morihisa Hamada, Thomas Hélouis, Martin J Whitehouse and Nobumichi Shimizu
    Citation: Earth, Planets and Space 2014 66:81
    Content type: Full paper Published on:

  25. Waveform cross-correlation coefficients (CCs) have often been used to investigate clustering of earthquakes. Such techniques, however, have rarely been applied to waveform data recorded by ocean-bottom seismom...

    Authors: Takeshi Akuhara and Kimihiro Mochizuki
    Citation: Earth, Planets and Space 2014 66:80
    Content type: Full paper Published on:

  26. Global Positioning System radio occultation measurements by FORMOsa SATellite mission-3/Constellation Observing System for Meteorology, Ionosphere and Climate satellites were used to analyse the characteristic...

    Authors: Tilo Fytterer, Christina Arras, Peter Hoffmann and Christoph Jacobi
    Citation: Earth, Planets and Space 2014 66:79
    Content type: Full paper Published on:

  27. A recent microphysical model for the steady-state frictional behaviour of wet illite/quartz gouges in subduction megathrust settings predicts that velocity-weakening in the seismogenic zone results from a comp...

    Authors: Sabine AM den Hartog, Demian M Saffer and Christopher J Spiers
    Citation: Earth, Planets and Space 2014 66:78
    Content type: Frontier letter Published on:

  28. The 2011 off the Pacific coast of Tohoku (Tohoku-oki) earthquake caused increased seismicity in many inland areas in Japan. A seismic cluster north of the Moriyoshi-zan volcano in Akita prefecture, Tohoku Dist...

    Authors: Masahiro Kosuga
    Citation: Earth, Planets and Space 2014 66:77
    Content type: Full paper Published on:

  30. We conducted triaxial friction experiments on the shallow Nankai Trough accretionary sediments at confining pressures, pore water pressures, temperatures close to their in situ conditions, and axial displacement ...

    Authors: Miki Takahashi, Shuhei Azuma, Hidenori Ito, Kyuichi Kanagawa and Atsuyuki Inoue
    Citation: Earth, Planets and Space 2014 66:75
    Content type: Full paper Published on:

  31. This integrated tectonic study reveals the basin-forming and deforming processes on an active margin. Southwest Japan (SWJ) is an island arc under the influence of oblique subduction of the Philippine Sea plat...

    Authors: Yasuto Itoh, Shigekazu Kusumoto and Keiji Takemura
    Citation: Earth, Planets and Space 2014 66:74
    Content type: Full paper Published on:

  33. We examined the frictional properties of sediments on the Cocos plate offshore the Osa Peninsula, Costa Rica, and explored variations in the intrinsic frictional properties of the sediment inputs to the Costa ...

    Authors: Yuka Namiki, Akito Tsutsumi, Kohtaro Ujiie and Jun Kameda
    Citation: Earth, Planets and Space 2014 66:72
    Content type: Frontier letter Published on:

  36. At the western side of the Hidaka Mountain range in Hokkaido, we identify a clear later phase in seismograms for earthquakes occurring at the uppermost part of the Pacific slab beneath the eastern Hokkaido. Th...

    Authors: Takahiro Shiina, Junichi Nakajima, Genti Toyokuni and Toru Matsuzawa
    Citation: Earth, Planets and Space 2014 66:69
    Content type: Letter Published on:

  37. Detailed bathymetry and magnetic anomalies in the southern part of the Central Ryukyu Arc reveal recent volcanic structures in a southwestward extension of the active volcanic front of the Ryukyu Arc. A line o...

    Authors: Taichi Sato, Hirokuni Oda, Osamu Ishizuka and Kohsaku Arai
    Citation: Earth, Planets and Space 2014 66:68
    Content type: Letter Published on:

  40. The 2011 Tohoku earthquake (Mw 9.0) produced a very large slip on the shallow part of a megathrust fault that resulted in destructive tsunamis. Although multiple causes of such large slip at shallow depths are...

    Authors: Michiyo Sawai, Takehiro Hirose and Jun Kameda
    Citation: Earth, Planets and Space 2014 66:65
    Content type: Letter Published on:

  43. Results of a superposed epoch (SPE) analysis of occurrence of phase scintillation and cycle slips at high latitudes keyed by arrival times of high-speed solar wind streams (HSS) and interplanetary coronal mass...

    Authors: Paul Prikryl, P Thayyil Jayachandran, Sajan C Mushini and Ian G Richardson
    Citation: Earth, Planets and Space 2014 66:62
    Content type: Full paper Published on:

  44. Geochemical signatures of arc basalts can be explained by addition of aqueous fluids, melts, and/or supercritical fluids from the subducting slab to the sub-arc mantle. Partitioning of large-ion lithophile ele...

    Authors: Tatsuhiko Kawamoto, Kenji Mibe, Hélène Bureau, Solenn Reguer, Cristian Mocuta, Stefan Kubsky, Dominique Thiaudière, Shigeaki Ono and Tetsu Kogiso
    Citation: Earth, Planets and Space 2014 66:61
    Content type: Full paper Published on:

  45. Titanian clinohumite is an accessory phase found in peridotites, and it can be a key repository of volatile and other trace elements in sub-arc mantle. To characterize spectroscopic variations due to volatile ...

    Authors: Kenneth T Koga, Carlos J Garrido, José A Padrón-Navarta, Vicente López Sánchez-Vizcaíno and María T Gómez-Pugnaire
    Citation: Earth, Planets and Space 2014 66:60
    Content type: Letter Published on:

  46. The pore fluid pressure distribution in the focal region of the 2008 Iwate-Miyagi Nairiku earthquake was investigated through an analysis of the diversity of focal mechanisms. We inverted stress orientations a...

    Authors: Keisuke Yoshida, Akira Hasegawa, Tomomi Okada, Hiroaki Takahashi, Masahiro Kosuga, Takaya Iwasaki, Yoshiko Yamanaka, Hiroshi Katao, Yoshihisa Iio, Atsuki Kubo, Takeshi Matsushima, Hiroki Miyamachi and Youichi Asano
    Citation: Earth, Planets and Space 2014 66:59
    Content type: Letter Published on:

  47. Ultrafine-grained black fault rocks (BFRs) in the Pasagshak Point Thrust of the Kodiak accretionary complex are examples of fault rocks that have recorded seismicity along an ancient subduction plate boundary....

    Authors: Asuka Yamaguchi, Tsuyoshi Ishikawa, Yasuhiro Kato, Tatsuo Nozaki, Francesca Meneghini, Christie D Rowe, James Casey Moore, Akito Tsutsumi and Gaku Kimura
    Citation: Earth, Planets and Space 2014 66:58
    Content type: Letter Published on:

  49. A case study is performed to investigate the probable reasons behind substantial daytime sodium (Na) D1 airglow intensity (589.6 nm) variations measured using a ground-based monochromator during the three near co...

    Authors: Md Mosarraf Hossain, Chandrashekheran Nair Vineeth, Sukumaran Nair Geetha Kumari Sumod and Tarun Kumar Pant
    Citation: Earth, Planets and Space 2014 66:56
    Content type: Full paper Published on:

  50. It is well known that environmental conditions like convective instability, aerosol loading, and availability of moisture content affect the polarity of charge structures of thunderstorms. The electrical chara...

    Authors: Sunil Dnyandeo Pawar, Venkatachalam Gopalakrishnan, Palani Murugavel, Andrei Sinkevich and Deen Mani Lal
    Citation: Earth, Planets and Space 2014 66:54
    Content type: Full paper Published on:
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