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Shallow structure of the Fujikawa-kako fault system revealed by 3D FWI

Research Project

Project/Area Number 26247084
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Geology
Research InstitutionTeikyo Heisei University

Principal Investigator

ITO Tanio  帝京平成大学, 現代ライフ学部, 客員教授 (50111448)

Co-Investigator(Kenkyū-buntansha) 佐藤 剛  帝京平成大学, 現代ライフ学部, 准教授 (00468406)
狩野 謙一  静岡大学, 防災総合センター, 客員教授 (30090517)
Co-Investigator(Renkei-kenkyūsha) WATANABE Toshiki  名古屋大学, 環境学研究科, 教授 (50210935)
ODAWARA Kei  神奈川県温泉地学研究所, 主任研究員 (00416083)
YAMAKITA Satoshi  宮崎大学, 教育学部, 准教授 (80210342)
ABE Shintaro  産業技術総合研究所, 地質調査総合センター, グループ長 (70371408)
KOMORI Jiro  帝京平成大学, 現代ライフ学部, 講師 (10572422)
Research Collaborator YAMAMOTO Genshu  静岡県立富士宮東高等学校, 教諭
KOBAYASHI Kenta  新潟大学, 大学院・自然科学研究科, 講師
HARADA Masatake  神奈川県温泉地学研究所, 主任研究員
KATO Kiyoshi  駒澤大学, 総合教育研究部, 講師
HOSHIBA Ryo  帝京平成大学, 現代ライフ学部
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥42,770,000 (Direct Cost: ¥32,900,000、Indirect Cost: ¥9,870,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
Fiscal Year 2014: ¥31,980,000 (Direct Cost: ¥24,600,000、Indirect Cost: ¥7,380,000)
Keywords富士川河口断層帯 / 浅部構造 / 活断層 / 反射法地震探査 / 3次元全波動場インバージョン / 大宮断層 / 入山瀬断層 / 浅部反射法地震探査 / 全波動場インバージョン / レシーバ関数解析 / フィリピン海プレート / プレート境界 / パラレル測線反射法地震探査 / 伏在低角衝上断層 / ポップアップ構造 / レシーバ関数解析法 / 大宮‐入山瀬断層 / 3次元全波動場インバージョン解析
Outline of Final Research Achievements

The results of this study are summarized as follows. (1) The Omiya and the Iriyamase faults that represent the frontal faults of the Fujikawa-kako fault system, form a single w-dipping reverse at depth. The dip of the fault becomes gentler towards the surface, and nearly horizontal beneath the eastern cliff of the Hoshiyama Hills, although it does not breach the surface. As a result, the cliff does not correspond to the fault scarp, but to the flexure of the hanging wall associated with the subsurface faulting. (2) The hinge of the flexure follows the eastern edge of the cliffs forming a horseshoe shape. This suggests that the eastward displacement of the hanging wall is estimated to be larger at the tip of the horseshoe and smaller at its sides, which is common for hanging walls of thrusts. (3) It is necessary to reexamine MEXT’s (2010) evaluation of the Fijikawa-kako fault system activity assuming the Omiya and the Iriyamase faults to be high-angle normal faults.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • 2014 Annual Research Report
  • Research Products

    (14 results)

All 2017 2016 2015 2014 Other

All Presentation (13 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results) Remarks (1 results)

  • [Presentation] 南アルプス南端部地域における地下構造の地震波干渉法イメージング2017

    • Author(s)
      長谷川大真, 渡辺俊樹, 伊藤谷生, 狩野謙一, 阿部 進, 藤原 明, 河内善徳
    • Organizer
      日本地球惑星科学連合2017年大会
    • Place of Presentation
      千葉市
    • Year and Date
      2017-05-25
    • Related Report
      2016 Annual Research Report
  • [Presentation] 最近の地震学的研究成果によって明らかとなった伊豆衝突帯の地殻構造2016

    • Author(s)
      伊藤谷生
    • Organizer
      日本地質学会第123年学術大会
    • Place of Presentation
      日本大学文理学部
    • Year and Date
      2016-09-11
    • Related Report
      2016 Annual Research Report
  • [Presentation] 富士川河口断層帯における2014年度浅部高分解能地下構造探査の結果2016

    • Author(s)
      狩野謙一・伊藤谷生・渡辺俊樹・小田原啓・山本玄珠・藤原明・阿部進
    • Organizer
      日本地質学会第123年学術大会
    • Place of Presentation
      日本大学文理学部
    • Year and Date
      2016-09-10
    • Related Report
      2016 Annual Research Report
  • [Presentation] 富士川河口断層帯、星山丘陵周辺の地質構造(予察)2016

    • Author(s)
      小田原啓・山本玄珠・狩野謙一・伊藤谷生・渡辺俊樹・藤原明・阿部進
    • Organizer
      日本地質学会第123年学術大会
    • Place of Presentation
      日本大学文理学部
    • Year and Date
      2016-09-10
    • Related Report
      2016 Annual Research Report
  • [Presentation] Lithospheric structures and their formation process at the northwestern border region of the Izu collision zone, central Japan2016

    • Author(s)
      Tanio Ito
    • Organizer
      International symposium on the continents and their margins
    • Place of Presentation
      アビモア、英国
    • Year and Date
      2016-05-20
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The Japanese island arc: geological structures and its formation Processes2015

    • Author(s)
      Ito, T., Yamakita, S., and Sato, H.
    • Organizer
      THE 10TH WORKSHOP OF THE INTERNATIONAL LITHOSPHERE PROGRAM ILP-TASK FORCE ON SEDIMENTARY BASINS
    • Place of Presentation
      DAIICHI HOTEL TOKYO SEAFORT、Tokyo
    • Year and Date
      2015-10-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lithospheric structures and their formation process at the northwestern border region of the Izu collision zone, central Japan2015

    • Author(s)
      Ito, T.
    • Organizer
      THE 10TH WORKSHOP OF THE INTERNATIONAL LITHOSPHERE PROGRAM ILP-TASK FORCE ON SEDIMENTARY BASINS
    • Place of Presentation
      DAIICHI HOTEL TOKYO SEAFORT、Tokyo
    • Year and Date
      2015-10-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 稠密アレイ自然地震観測による南アルプス南端部地域のフィリピン海プレートの構造2015

    • Author(s)
      川崎悠介、渡辺俊樹、加藤愛太郎、狩野謙一、伊藤谷生、阿部 進、野田克也、河内善徳、山岡耕春
    • Organizer
      2015年日本惑星科学連合大会
    • Place of Presentation
      幕張メッセ、千葉
    • Year and Date
      2015-05-22
    • Related Report
      2015 Annual Research Report
  • [Presentation] Arc-arc collision ongoing in the southernmost part of the Kuril trench region revealed from integrated analyses of the 1998-2000 Hokkaido Transect seismic data2014

    • Author(s)
      wasaki T., Tsumura, N., Ito, T., Sato, H., Kurashimo, E., Hirata, N., Arita, K., Noda, K., Fujiwara, A., Abe, S., Kikuchi, S. & Suzuki, K.
    • Organizer
      2014 Fall Meeting, American Geophysical Union
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2014-12-15 – 2014-12-19
    • Related Report
      2014 Annual Research Report
  • [Presentation] 1998-2000 年北海道トランゼクトデータの再解析による日高衝突帯の構造 V2014

    • Author(s)
      岩崎貴哉・津村紀子・伊藤谷生・佐藤比呂志・蔵下英司・平田直・在田一則・野田克也・藤原明・阿部進・菊池伸輔・鈴木和子
    • Organizer
      日本地震学会2014年秋季大会
    • Place of Presentation
      新潟コンベンションセンター(新潟県 新潟市)
    • Year and Date
      2014-11-24 – 2014-11-26
    • Related Report
      2014 Annual Research Report
  • [Presentation] Reinterpretation of the Lithospheric Structure beneath the Hidaka Collision Zone, Hokkaido, Japan 1. Outline2014

    • Author(s)
      Tsumura, N., Iwasaki, T., Ito, T., Sato, H., Kurashimo, E., Hirata, N., Arita, K., Noda, K., Fujiwara, A., Abe, S., Kikuchi, S. & Suzuki, K.
    • Organizer
      16-th SEISMIX International Symposium
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2014-10-18 – 2014-10-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] Reinterpretation of the Lithospheric Structure beneath the Hidaka Collision Zone, Hokkaido, Japan 2 -Collision Structure of the Northern Part from 1998-2000 Hokkaido Transect2014

    • Author(s)
      Iwasaki, T., Tsumura, N., Ito, T., Sato, H., Kurashimo, E., Hirata, N., Arita, K., Noda, K., Fujiwara, A., Abe, S., Kikuchi, S. & Suzuki, K.
    • Organizer
      16-th SEISMIX International Symposium
    • Place of Presentation
      Barcelona, Spain
    • Year and Date
      2014-10-18 – 2014-10-23
    • Related Report
      2014 Annual Research Report
  • [Presentation] 1998-2000 年北海道トランゼクトデータの再解析による日高衝突帯の構造IV2014

    • Author(s)
      岩崎貴哉・津村紀子・伊藤谷生・佐藤比呂志・蔵下英司・平田直・在田一則・野田克也・藤原明・阿部進・菊池伸輔・鈴木和子
    • Organizer
      日本地球惑星科学連合2014大会
    • Place of Presentation
      横浜パシフィコ(神奈川県 横浜市)
    • Year and Date
      2014-04-28 – 2014-05-02
    • Related Report
      2014 Annual Research Report
  • [Remarks] 本学の研究グループにより、富士川河口断層帯の高分解能地下構造探査が実施されました。

    • URL

      http://www.thu.ac.jp/news/2015/04/150408-01.html

    • Related Report
      2014 Annual Research Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

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