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Study on a mantle upwelling in southwestern Japan and its tectonic implications

Research Project

Project/Area Number 21740318
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Solid earth and planetary physics
Research InstitutionTohoku University

Principal Investigator

NAKAJIMA Junichi  東北大学, 大学院・理学研究科, 准教授 (30361067)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords地震波速度構造 / トモグラフィ / 上昇流 / 紀伊半島 / 地震波速度トモグラフィ / 地震波形 / スペクトル / 低周波地震 / 流体
Research Abstract

We estimated three-dimensional seismic velocity and attenuation structures beneath southwestern Japan using a large number of high-quality seismic waveform data. The obtained results that a large low-velocity and high-attenuation zone is distributed in the upper mantle and appears to penetrate into the Philippine Sea slab locally beneath the Kii Peninsula. Seismo-and volcano-tectonics beneath SW Japan may be controlled by the mantle upwelling which is probably related to deep dehydration of the Pacific slab.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (42 results)

All 2011 2010 2009

All Journal Article (23 results) (of which Peer Reviewed: 23 results) Presentation (19 results)

  • [Journal Article] Seismic evidence for reactivation of a buried hydrated fault in the Pacific slab by the 2011 M9.0 Tohoku Earthquake2011

    • Author(s)
      Nakajima, J., A.Hasegawa, S.Kita
    • Journal Title

      Geophys. Res. Lett.

      Volume: 38 Issue: 16 Pages: n/a-n/a

    • DOI

      10.1029/2011gl048754

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Seismic evidence for reactivation of a buried hydrated fault in the Pacific slab by the 2011 M9.0 Tohoku earthquake2011

    • Author(s)
      Nakajima, J., A.Hasegawa, S.Kita
    • Journal Title

      Geophys.Res.Lett.

      Volume: 38 Issue: 7 Pages: 2-4

    • DOI

      10.1029/2011gl048432

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Group for the aftershock observations of the 2011 off the Pacific Coast of Tohoku Earthquake2011

    • Author(s)
      Okada, T., K. Yoshida, S. Ueki, J. Nakajima, N. Uchida, T. Matsuzawa, N. Umino, A. Hasegawa
    • Journal Title

      Shallow inland earthquakes in NE Japan possibly triggered by the 2011 off the Pacific coast of Tohoku Earthquake, Earth Planets and Space

      Volume: 63 Pages: 749-754

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Lateral variation of the cutoff depth of shallow earthquakes beneath the Japan Islands and its implications for seismogenesis2011

    • Author(s)
      Omuralieva Aimjan、Akira Hasegawa, Toru Matsuzawa, Junichi Nakajima, Tomomi Okada
    • Journal Title

      Tectonophysics

      Volume: 518 Pages: 93-105

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Earthquakes and plastic deformation of anhydrous slab mantle in double Wadati-Benioff zones2010

    • Author(s)
      Reynard, B., J. Nakajima, and H. Kawakatsu
    • Journal Title

      Geophy. Res. Lett.

      Volume: 37 Issue: 24

    • DOI

      10.1029/2010gl045494

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Existence of interplane earthquakes and neutral stress boundary between the upper and lower planes of the double seismic zone beneath Tohoku and Hokkaido2010

    • Author(s)
      Kita, S., T. Okada, A. Hasegawa, J. Nakajima, and T. Matsuzawa
    • Journal Title

      northeastern Japan, Tectonophysics

      Volume: 496 Pages: 68-82

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] and The Japanese University Group of the Joint Seismic Observations at NKTZ, Deep crustal structure around the Atotsugawa fault system, central Japan : A weak zone below the seismogenic zone and its role in earthquake generation2010

    • Author(s)
      Nakajima, J., A. Kato, T. Iwasaki, S. Ohmi, T. Okada, T. Takeda
    • Journal Title

      Earth Planets and Space

      Volume: 62 Pages: 555-566

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Subduction of a wedge-shaped Philippine Sea plate beneath Kanto, central Japan, estimated from converted waves and small repeating earthquakes2010

    • Author(s)
      Uchida, N., T. Matsuzawa, J. Nakajima, and A. Hasegawa
    • Journal Title

      J. Geophys. Res.

      Volume: 115 Issue: B7

    • DOI

      10.1029/2009jb006962

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Anomalous deepening of a seismic belt in the upper-plane of the double seismic zone in the Pacific slab beneath the Hokkaido corner : Possible evidence for thermal shielding caused by subducted forearc crust materials2010

    • Author(s)
      Kita, S., T. Okada, A. Hasegawa, J. Nakajima, and T. Matsuzawa
    • Journal Title

      Earth Planet. Sci. Lett.

      Volume: 290 Pages: 415-426

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cause of M7 earthquakes beneath the Tokyo metropolitan area, Japan : Possible evidence for a vertical tear at the easternmost portion of the Philippine Sea slab2010

    • Author(s)
      Nakajima, J., and A. Hasegawa
    • Journal Title

      J. Geophys. Res.

      Volume: 115 Issue: B4

    • DOI

      10.1029/2009jb006863

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Cause of M7 earthquakes beneath the Tokyo metropolitan area, Japan : Possible evidence for a vertical tear at the easternmost portion of the Philippine Sca slab2010

    • Author(s)
      中島淳一・長谷川昭
    • Journal Title

      Journal of Geophysical Research

      Volume: 115

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 日本列島下での沈み込みプロセスの多様性2010

    • Author(s)
      片山郁夫・平内健一・中島淳一
    • Journal Title

      地学雑誌

      Volume: 119 Pages: 190-204

    • NAID

      10030368419

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Tectonic setting of volcanic centers in subduction zones : 3D structure of mantle wedge and arc crust2009

    • Author(s)
      Tamura, Y., J. Nakajima, S. Kodaira, and A. Hasegawa
    • Journal Title

      In Volcanic and Tectonic Hazard Assessment for Nuclear Facilities, edited by Conner, C., Chapman, N. A, Conner, L.

      Pages: 177-194

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Helium isotope variations along the Niigata-Kobe Tectonic Zone, central Japan, In The Lithosphere ; Geochemistry, Geology and Geophysics, edited by Anderson, J. E., and Coates, R. W.2009

    • Author(s)
      Umeda, K., A. Ninomiya, K. Shimada, and J. Nakajima
    • Journal Title

      Nova Science Publisher Inc.

      Pages: 141-170

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Seismotectonics beneath the Tokyo metropolitan area, Japan : Effect of slab-slab contact and overlap on seismicity2009

    • Author(s)
      Nakajima, J., F. Hirose, and A. Hasegawa
    • Journal Title

      J. Geophys. Res.

      Volume: 114

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Izu-Bonin arc subduction under the Honshu island, Japan : Evidence from geological and seismological aspect2009

    • Author(s)
      Yamamoto, S., J. Nakajima, A. Hasegawa, and S. Maruyama
    • Journal Title

      Gondwana Research

      Volume: 16 Pages: 572-580

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] What controls interplate coupling? : Evidence for abrupt change in coupling across a border between two overlying plates in the NE Japan subduction zone2009

    • Author(s)
      Uchida, N., J. Nakajima, A. Hasegawa, and T. Matsuzawa
    • Journal Title

      Earth Planet. Sci. Lett

      Volume: 283 Pages: 111-121

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Plate subduction, and generation of earthquakes and magmas in Japan as inferred from seismic observations2009

    • Author(s)
      Hasegawa, A., J. Nakajima, N. Uchida, T. Okada, D. Zhao, T. Matsuzawa, and N. Umino
    • Journal Title

      An overview, Gondwana Research

      Volume: 16 Pages: 370-400

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Seismic evidence for thermally-controlled dehydration reaction in subducting oceanic crust2009

    • Author(s)
      Nakajima, J., Y.Tsuji, and A.Hasegawa
    • Journal Title

      Geophys. Res. Lett.

      Volume: 36 Issue: 3

    • DOI

      10.1029/2008gl036865

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Tomographic imaging of hydrated crust and mantle in the subducting Pacific slab beneath Hokkaido, Japan : Evidence for dehydration embrittlement as a cause of intraslab earthquakes2009

    • Author(s)
      Nakajima, J., Y. Tsuji, A. Hasegawa, S. Kita, T. Okada, and T. Matsuzawa
    • Journal Title

      Gondwana Research

      Volume: 16 Pages: 470-481

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Tracing extinct spreading center in SW Japan by helium-3 emanation2009

    • Author(s)
      Sano, Y., A. Kameda, N. Takahata, J. Yamamoto, and J. Nakajima
    • Journal Title

      Chemical Geology

      Volume: 266 Pages: 50-56

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] hree-dimensional seismic velocity structure of the crust beneath the central Tien Shan, Kyrgyzstan2009

    • Author(s)
      Omuralieva, A., J. Nakajima, and A. Hasegawa
    • Journal Title

      Implications for large-and small-scale mountain building. Tectonophysics

      Volume: 465 Pages: 30-44

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] 地震波トモグラフィでみたスラブの沈み込みと島弧マグマ活動2009

    • Author(s)
      中島淳一
    • Journal Title

      地震 61

    • NAID

      10025365258

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] An intraslab earthquake (M7. 1)along a buried hydrated fault in the Pacific plate, triggered by the 2011 M9 Tohoku earthquake2011

    • Author(s)
      Nakajima, J., A. Hasegawa, S. Kita
    • Organizer
      AGU Fall Meeting 2011, San Francisco
    • Place of Presentation
      Moncone Center
    • Year and Date
      2011-12-09
    • Related Report
      2011 Final Research Report
  • [Presentation] An intraslab earthquake (M7.1) along a buried hydrated fault in the Pacific plate, triggered by the 2011 M9 Tohoku earthquake2011

    • Author(s)
      Junichi Nakajima, Akira Hasegawa, Saeko Kita
    • Organizer
      American Geophysical Union 2011 Fall Meeting
    • Place of Presentation
      アメリカ,サンフランシスコ,モスコンセンター
    • Year and Date
      2011-12-09
    • Related Report
      2011 Annual Research Report
  • [Presentation] 東北地方太平洋沖地震と誘発地震-4月7日のスラブ内地震(M7. 1)について-2011

    • Author(s)
      中島淳一・長谷川昭・北佐枝子
    • Organizer
      日本地震学会2011年秋季大会
    • Place of Presentation
      グランシップ静岡
    • Year and Date
      2011-10-13
    • Related Report
      2011 Final Research Report
  • [Presentation] 東北地方太平洋沖地震と誘発地震~4月7日のスラブ内地震(M7.1)について~2011

    • Author(s)
      中島淳一・長谷川昭・北佐枝子・太田雄策・大園真子・三浦哲
    • Organizer
      日本地震学会2011年秋季大会
    • Place of Presentation
      グランシップ静岡
    • Year and Date
      2011-10-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] スペクトル比法を用いたコーナー周波数の推定と東北地方の地震波減衰構造(その2)2011

    • Author(s)
      羽田周平・中島淳一・内田直希・速水絵里圭・海野徳仁
    • Organizer
      日本地震学会2011年秋季大会
    • Place of Presentation
      グランシップ静岡
    • Year and Date
      2011-10-13
    • Related Report
      2011 Annual Research Report
  • [Presentation] Seismic imaging of slab structure and its relation to seismicity2011

    • Author(s)
      Nakajima, J.
    • Organizer
      Workshop on Ocean Mantle Dynamics : From Spreading Center to Subduction
    • Place of Presentation
      東大柏の葉キャンパス
    • Year and Date
      2011-10-05
    • Related Report
      2011 Final Research Report
  • [Presentation] Seismic imaging of slab structure and its relation to seismicity2011

    • Author(s)
      Junichi Nakajima
    • Organizer
      Workshop on Ocean Mantle Dynamics : From Spreading Center to Subduction
    • Place of Presentation
      東京大学柏の葉キャンパス
    • Year and Date
      2011-10-05
    • Related Report
      2011 Annual Research Report
  • [Presentation] フィリピン海スラブ内の起震応力場と関東地震のアスペリティ2011

    • Author(s)
      中島淳一・長谷川昭・弘瀬冬樹
    • Organizer
      日本地球惑星科学連合2011年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2011-05-27
    • Related Report
      2011 Final Research Report
  • [Presentation] フィリピン海プレートの沈み込みと関東地方の地震テクトニクス2010

    • Author(s)
      中島淳一・長谷川昭
    • Organizer
      日本地震学会2010年秋季大会
    • Place of Presentation
      広島国際会議場
    • Year and Date
      2010-10-27
    • Related Report
      2011 Final Research Report
  • [Presentation] Seismic evidence for dehydration reactions in the subducting oceanic plates2010

    • Author(s)
      Nakajima, J., A. Hasegawa
    • Organizer
      G-COE Symposium 2010 Dynamic Earth and Heterogeneous Structure
    • Place of Presentation
      Sendai City War Reconstruction Memorial Hall
    • Year and Date
      2010-07-15
    • Related Report
      2011 Final Research Report
  • [Presentation] 地震波トモグラフィで診る日本列島下の上部マントル構造2010

    • Author(s)
      中島淳一
    • Organizer
      日本地球惑星科学連合2010年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2010-05-23
    • Related Report
      2011 Final Research Report
  • [Presentation] 前弧マントルウエッジは含水化しているか?2010

    • Author(s)
      中島淳一・長谷川昭
    • Organizer
      日本地球惑星科学連合2010年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2010-05-23
    • Related Report
      2011 Final Research Report
  • [Presentation] 伊豆前弧マントルウエッジの蛇紋岩化:関東下の地震波速度構造からの考察2010

    • Author(s)
      中島淳一・長谷川昭
    • Organizer
      日本地球惑星科学連合2010年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2010-05-23
    • Related Report
      2011 Final Research Report
  • [Presentation] 地震波トモグラフィで診る日本列島下の上部マントル構造2010

    • Author(s)
      中島淳一
    • Organizer
      日本地球惑星科学連合2010年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2010-05-23
    • Related Report
      2010 Annual Research Report
  • [Presentation] 関東下におけるフィリピン海スラブの断裂-スラブ内地震(M7)との関連-2009

    • Author(s)
      中島淳一・長谷川昭
    • Organizer
      日本地震学会2009年秋季大会
    • Place of Presentation
      京都大学
    • Year and Date
      2009-10-22
    • Related Report
      2011 Final Research Report
  • [Presentation] スラブ内地震の発生機構-地震学的データによる脱水脆性化説の検証-2009

    • Author(s)
      中島淳一・長谷川昭
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2009-05-23
    • Related Report
      2011 Final Research Report
  • [Presentation] 地震波速度トモグラフィで診るひずみ集中帯の深部構造2009

    • Author(s)
      中島淳一
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2009-05-20
    • Related Report
      2011 Final Research Report
  • [Presentation] 歪集中帯大学合同地震観測グループ, 跡津川断層周辺の三次元地震波速度構造-断層深部の低速度領域-2009

    • Author(s)
      中島淳一・加藤愛太郎・岩崎貴哉・大見士朗・岡田知己・武田哲也
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      幕張メッセ
    • Year and Date
      2009-05-17
    • Related Report
      2011 Final Research Report
  • [Presentation] スラブ内地震の発生機構~地震学的データによる脱水脆性化説の検証~2009

    • Author(s)
      中島淳一
    • Organizer
      日本地球惑星科学連合2009年大会
    • Place of Presentation
      幕張メッセ国際会議場
    • Year and Date
      2009-05-16
    • Related Report
      2009 Annual Research Report

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Published: 2009-04-01   Modified: 2016-04-21  

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