Renewing of tectonic frame in northeastern Asia by geophysical observation data

2012 Fiscal Year Final Research Report

• Project/Area Number: 21253005
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Solid earth and planetary physics
• Research Institution: Hokkaido University
• Principal Investigator: TAKAHASHI Hiroaki 北海道大学, 大学院・理学研究院, 准教授 (30301930)
• Co-Investigator(Kenkyū-buntansha): MIYAMACHI Hiroki 鹿児島大学, 大学院・理工学研究科, 教授 (30182041) ; NAKAO Shigeru 鹿児島大学, 大学院・理工学研究科, 准教授 (90237214) ; YOMOGIDA Kiyoshi 北海道大学, 大学院・理学研究院, 教授 (70230844) ; YOSHIZAWA Kazunori 北海道大学, 大学院・理学研究院, 准教授 (70344463) ; YOSHIMOTO Mitsuhiro 北海道大学, 大学院・理学研究院, 助教 (20334287) ; TANIOKA Yuichiro 北海道大学, 大学院・理学研究院, 教授 (40354526)
• Project Period (FY): 2009 – 2012
• Keywords: ロシア極東 / アムールプレート / 上部マントル構造 GPS 観測 / 広帯域地震観測 / 稠密地震観測 / 2011 年東北地方太平洋沖地震 / 余効変動

Research Abstract

Characteristics of crustal deformation due to Amur plate motion and seismological structure of crust and upper mantle in far eastern Russia, Japan Sea and northwestern Pacific had been clarified from original geophysical data from international GPS and seismological observation network operated by this research project. Clear coseismic and postseismic deformation associated with the 2011 M9.0 Tohoku earthquake was recognized. These facts suggested that geodynamic effects related to subdution process along Kuril, Japan trenches and Nankai trough should be examined for detection of Amur plate motion and building tectonic frame in northeastern Asia.

Research Products

• [Journal Article] Serov, Analysis of the far-field crustal deformations caused by the 2011Great Tohoku earthquake inferred from continuous GPS observations (2012)
  • Author(s): Shestakov, N., H. Takahashi, M. Ohzono, A. Prytkov, V. Bykov, M. Gerasimenko, M. Luneva, G. Gerasimov, A. Kolomiets, V. Bormotov, N. Vasilenko, J Naek, P. H. Park, M
  • Journal Title: Tectonophys Volume: 524-525 Pages: 76-86
• [Journal Article] Coseismic strain andstress changes in eastern Japan due to the2011 Off the Pacific Coast of Tohoku Earthquake as derived from GPS data (2011)
  • Author(s): Takahashi, H.
  • Journal Title: Earth Planets Space Volume: 63 Pages: 741-744
• [Journal Article] Present tectonics of the southeast of Russia as seen from GPS Observations, Geophys. (2010)
  • Author(s): Shestakov, N. V., M. D. Gerasimenko, H. Takahashi, M. Kasahara, V. A. Bormotov,V. G. Bykov, A. G. Kolomiets, G. N. Gerasimov, N. F. Vasilenko, A. S. Prytkov, V. Yu. Timofeev, D. G. Ardyukov and T. Kato
  • Journal Title: J. Int
  • DOI: doi:10.1111/j.1365-246X.2010.04871.x
• [Journal Article] 3-D upper mantle structure beneath Japan and its surrounding region from inter-station dispersion measurements of surface waves (2010)
  • Author(s): Yoshizawa, K., Miyake, K. and Yomogida,K.
  • Journal Title: Phys. Earth Planet. Inter Volume: 183 Pages: 4-19
• [Journal Article] Upper mantle structure of marginal seas and subduction zones in northeastern Eurasia from Rayleigh wave tomography (2010)
  • Author(s): Bourova, E., Yoshizawa, K. and Yomogida,K.
  • Journal Title: Phys. Earth Planet. Inter Volume: 183 Pages: 20-32
• [Journal Article] 日露共同地 震観測による2007年8月2日に発生したサハリン南西沖の地震(MJMA6.4)の余震活動 (2010)
  • Author(s): 一柳昌義・高橋浩晃・前田宜浩・笠原稔・宮町宏樹・平野舟一郎・センラクス・ミハイ ルワレンチン・キムチュンウン
  • Journal Title: 地震II Volume: 62 Pages: 139-152
• [Journal Article] Coseismic deformation of the earth's surface in Sakhalin related to the August 2, 2007, Mw=6.2 Nevelsk Earthquake (2009)
  • Author(s): Vasilenko, N. F., A. S. Prytkov, C. U. Kim and H. Takahashi
  • Journal Title: Russian Journal of Pacific Geology Volume: 3 Pages: 424-428
• [Presentation] 日本列島太平洋海溝型巨大地震と地震間固着がアジア北東域のテクトニ クスに与える影響 (2012)
  • Author(s): 高橋浩晃他
  • Organizer: 日本地震学会2012年度秋季大会
  • Year and Date: 20120000
• [Presentation] 海溝型地震および地震間固着が大陸内部の地殻変動に与える影響 (2012)
  • Author(s): 高橋浩晃他
  • Organizer: 日本測地学会2012年度秋季大会
  • Year and Date: 20120000
• [Book] 北海道の地震と津波 (2012)
  • Author(s): 高橋浩晃・谷岡勇市郎(分担執筆)
  • Total Pages: 245
  • Publisher: 北海道新聞社