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Structural Features of Megathrust beneath the North Island, New Zealand

Research Project

Project/Area Number 21253006
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Solid earth and planetary physics
Research InstitutionThe University of Tokyo

Principal Investigator

IWASAKI Takaya  東京大学, 地震研究所, 教授 (70151719)

Co-Investigator(Kenkyū-buntansha) SATO Hiroshi  東京大学, 地震研究所, 教授 (00183385)
KURASHIMO Eiji  東京大学, 地震研究所, 助教 (00302620)
IIDAKA Takashi  東京大学, 地震研究所, 准教授 (00221747)
ISHIYAMA Tatsuya  東京大学, 地震研究所, 助教 (90356452)
KATO Aitaro  東京大学, 地震研究所, 助教 (20359201)
HIRATA Naoshi  東京大学, 地震研究所, 教授 (90156670)
MIYAUCHI Takahiro  千葉大学, 理学研究科, 教授 (00212241)
Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥46,280,000 (Direct Cost: ¥35,600,000、Indirect Cost: ¥10,680,000)
Fiscal Year 2011: ¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2010: ¥21,450,000 (Direct Cost: ¥16,500,000、Indirect Cost: ¥4,950,000)
Fiscal Year 2009: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Keywords地震 / 地球・惑星内部構造 / 地質学 / ニュージーランド / ヒクランギ海台 / 構造探査 / 沈む込み帯 / 巨大地震 / 大都市 / 分岐断層 / プレート境界 / プレート / ヒクランギ / アスペリティ / 制御震源地震探査 / 固着域 / 沈み込み帯 / 地殻構造 / 上部マントル / 流体
Research Abstract

Active source seismic experiment conducted in the North Island, New Zealand revealed detailed subduction structure of the Hikurangi Plateau and the structural deformation of the overlying Australian plate. The subducted slab show a clear change in its dip beneath the North Island, around which oceanic materials are stacked to form a remarkable low velocity body. A series of branch faults such as the Wairapapa fault are developed eastward from this anomalous structure.

Report

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

    (17 results)

All 2012 2011 2010 Other

All Journal Article (3 results) (of which Peer Reviewed: 2 results) Presentation (14 results)

  • [Journal Article] Holocene paleoseismic history of upper plate faults in the southern Hikurangi subduction margin, New Zealand, deduced from marine terrace records2011

    • Author(s)
      Kelvin Berryman, Yoko Ota, Takahiro Miyauchi, 他5名
    • Journal Title

      Bulletin of Seismological Society of America

      Volume: 101 Pages: 2064-2087

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seismic characteristics around the fault segment boundary of historical great earthquakes along the Nankai Trough revealed by repeated long-term OBS observations2010

    • Author(s)
      Mochizuki, K., K. Nakahigashi, A. Kuwano, T. Yamada, M. Shinohara, S. Sakai, T. Kanazawa, K. Uehira and H. Shimizu
    • Journal Title

      Geophys. Res. Lett

      Volume: 37 Issue: 9

    • DOI

      10.1029/2010gl042935

    • Related Report
      2011 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] SAHKE geophysical transect reveals crustal and subduction zone structureat the southern Hikurangi margin

    • Author(s)
      Henrys, S., Wech, A., Sutherland. R., Stern, T., Savage, M., Sato, T., Mochizuki, K., Iwasaki, T., D. Okaya, D., Seward, A., Tozer, B., Townend, J., Kurashimo, E., Iidaka, T. and Ishiyama, T.
    • Journal Title

      New Zealand, Geochemistry Geophysics Geosystems

      Volume: (in press)

    • Related Report
      2011 Final Research Report
  • [Presentation] The 2009-11SAHKE Experiment: 2D velocity imaging across the interseismically locked southern Hikurangi margin, Wellington2012

    • Author(s)
      Henrys, S., Wech, A., Sato, H., Okada, D., Iwasaki, T. Stern, T., Savage, M., Kurashimo, E., Sutherland, R.
    • Organizer
      New Zealand, AGU Fall Meeting
    • Place of Presentation
      San Francisco(USA).
    • Year and Date
      2012-12-05
    • Related Report
      2011 Final Research Report
  • [Presentation] Seismic scatterer distribution beneath the Wellington region, southernmost part of New Zealand's North Island2012

    • Author(s)
      Kurashimo, E., Sato, H., Iidaka, T., Ishiyama, T., Iwasaki, T., Henrys, S.A., Sutherland, R., Stern, T.A., Savage, M. & Okada, D.A.
    • Organizer
      AGU Fall Meeting
    • Place of Presentation
      San Francisco(USA).
    • Year and Date
      2012-12-05
    • Related Report
      2011 Final Research Report
  • [Presentation] 2012. Wide-angle OBS velocity structure and gravity modeling along the SAHKE transect, lower North Island, New Zealand2012

    • Author(s)
      Mochizuki, K., Henrys, S., Yamada, T., Sutherland, R., Shinohara, M. & Iwasaki, T.
    • Organizer
      AGU Fall Meeting
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2012-12-05
    • Related Report
      2011 Final Research Report
  • [Presentation] スチュアート・ヘンリーズ, マー サ・サヴェージ, ティム・スターン, ルパート・サザーランド, デービッド・オカヤ,低重合反射法地震探査によるニュージー ランド北島・ワイララパ断層の深部地下構 造2012

    • Author(s)
      石山達也, 蔵下英司, 加藤直子, 佐藤比呂 志, 飯高隆, 岩崎貴哉, 北村重浩, 中山貴隆
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      千葉(幕張メッセ)
    • Year and Date
      2012-05-21
    • Related Report
      2011 Final Research Report
  • [Presentation] 低重合反射法地震探査によるニュージーランド北島・ワイララパ断層の深部地下構造2012

    • Author(s)
      石山達也
    • Organizer
      日本地球惑星科学連合2012大会
    • Place of Presentation
      千葉市幕張メッセ
    • Related Report
      2011 Annual Research Report
  • [Presentation] ニュージーランド北島,ウエリントン地域下における地震波散乱体分布2012

    • Author(s)
      蔵下英司
    • Organizer
      日本地球惑星科学連合2012大会
    • Place of Presentation
      千葉市幕張メッセ
    • Related Report
      2011 Annual Research Report
  • [Presentation] Seismic scattering distribution beneath the Wellington region, New Zealand2012

    • Author(s)
      Kurashimo, E.
    • Organizer
      15th Int. Symp. “Deep Seismic Profiling of the Continents and Their Margins”
    • Place of Presentation
      Beijin, China
    • Related Report
      2011 Annual Research Report
  • [Presentation] ヒクランギ沈み込み帯(ニュージーランド)のテクトニクス解明のための地震観測と構造調査2011

    • Author(s)
      望月公廣・山田知朗・篠原雅尚・佐藤比呂志・岩崎貴哉・Stuart Henrys・Rupert Sutherland
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      千葉(幕張メッセ)
    • Year and Date
      2011-05-27
    • Related Report
      2011 Final Research Report
  • [Presentation] Wide-angle OBS velocity structure along the SAHKE transect, lower North Island2011

    • Author(s)
      Mochizuki, K., Yamada, T., Shinohara, M., Iwasaki, T., Sato, H., Henrys, S., Sutherland,R.
    • Organizer
      New Zealand, AGU Fall meeting
    • Place of Presentation
      San Francisco (USA).
    • Year and Date
      2011-02-05
    • Related Report
      2011 Final Research Report
  • [Presentation] Offshore seismic survey and observation using OBSs across the locked southern Hikurangi margin2010

    • Author(s)
      Mochizuki, K., Henrys, S., Sato, H., Iwasaki, T.,他 4 名
    • Organizer
      New Zealand, AGU Fall Meeting
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2010-12-17
    • Related Report
      2011 Final Research Report
  • [Presentation] SAHKE experiment reveals seismic-reflection character of the source region of deep slow slip events, Hikurangi subduction zone2010

    • Author(s)
      Sutherland, R., S. Henrys, K. Mochizuki, Sato, H., Iwasaki, T., Stern, T., Savage, M., Towned, J., Barker, D., Seward, A., Henderson, M., Bassett, D., Bell, R.
    • Organizer
      New Zealand, AGU Fall Meeting
    • Place of Presentation
      San Francisco (USA).
    • Year and Date
      2010-12-17
    • Related Report
      2011 Final Research Report
  • [Presentation] Offshore seismic survey and observation using OBSs across the locked southern Hikurangi margin, New Zealand2010

    • Author(s)
      K.Mochizuki, 他6名
    • Organizer
      AGU Fall Meeting
    • Place of Presentation
      San Franciscoアメリカ
    • Year and Date
      2010-12-17
    • Related Report
      2010 Annual Research Report
  • [Presentation] ニュー ジーランド北島下メガスラストを探る-日 本-ニュージーランド共同構造探査-2010

    • Author(s)
      岩崎貴哉・佐藤比呂志・他 12 名
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      千葉(幕張メッセ)
    • Year and Date
      2010-05-25
    • Related Report
      2011 Final Research Report
  • [Presentation] ニュージーランド北島下メガスラストを探る-日本-ニュージーランド共同構造探査-2010

    • Author(s)
      岩崎貴哉・佐藤比呂志, 他12名
    • Organizer
      日本地球惑星科学連合大会
    • Place of Presentation
      幕張メッセ(千葉市)
    • Year and Date
      2010-05-25
    • Related Report
      2010 Annual Research Report

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

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