Research on active tectonics in central Japan based on integrated seismic experiments with long shot- and receiver- offsets

2010 Fiscal Year Final Research Report

• Project/Area Number: 20224016
• Research Category: Grant-in-Aid for Scientific Research (S)
• Allocation Type: Single-year Grants
• Research Field: Geology
• Research Institution: Chiba University
• Principal Investigator: ITO TAnio Chiba University, 大学院・理学研究科, 教授 (50111448)
• Co-Investigator(Renkei-kenkyūsha): SATO Toshinori 千葉大学, 大学院・理学研究科, 教授 (70222015) ; TSUMURA Noriko 千葉大学, 大学院・理学研究科, 助教 (00272302) ; MIYAUCHI Takahiro 千葉大学, 大学院・理学研究科, 教授 (99212241) ; IWASAKI Takaya 東京大学, 地震研究所, 教授 (70151719) ; SATO Hiroshi 東京大学, 地震研究所, 教授 (00183385) ; IKEDA Yasutaka 東京大学, 大学院・理学系研究科, 准教授 (70134442) ; KANO Ken'ichi 静岡大学, 理学部, 教授 (30090517) ; MIYAKE Yasuyuki 信州大学, 理学部, 教授 (70200144) ; KANEDA Heitaro 千葉大学, 大学院・理学研究科, 准教授 (30415658)
• Research Collaborator: 小嶋 智 岐阜大学, 工学部, 教授 ; 山北 聡 宮崎大学, 教育文化学部, 准教授 ; 阿部 信太郎 地震予知総合研究振興会, 主任研究員 ; 大塚 勉 信州大学, 理学部, 教授 ; 河本 和朗 大鹿村中央構造線博物館, 学芸員 ; 村松 武 飯田市美術博物館, 主任学芸員 ; 松島 信幸 伊那自然友の会 ; 波孝 治 京都大学, 防災研究所, 准教授 ; 深畑 幸俊 京都大学, 防災研究所, 准教授 ; 加藤 潔 駒澤大学, 講師 ; 三宅 康幸 信州大学, 理学部, 教授
• Project Period (FY): 2008 – 2010
• Keywords: 中部日本 / テクトニクス / 地殻構造 / 活断層 / 地震探査

Research Abstract

Previous geological researches have suggested that the active tectonics of Central Japan has been controlled by the motion and configuration of the Philippine Sea Plate, and also by the complicate crustal structure formed during the growth of Japanese Island Arc. This study has successfully obtained the seismic profiles from the upper surface of the Philippine Sea Plate up to the active surface faults at both the southeast and the northwest borders of Central Japan based on the integrated seismic experiments with long shot- and receiver- offsets. We believe the profiles provide essential data effective to further researches.

Research Products

• [Journal Article] 西南日本における海溝-島弧-縁海系の地殻構造-南海トラフから大和海盆北縁まで- (2010)
  • Author(s): 伊藤谷生、佐藤比呂志
  • Journal Title: 地学雑誌 119 Pages: 235-244
  • Peer Reviewed
• [Journal Article] Seismicity and crustal structure in the vicinity of the southern Itoigawa-Shizuoka tectonic line (2010)
  • Author(s): Panayotopoulos Y., N.Hirata, H.Sato, T.Iwasaki, 他
  • Journal Title: Earth Planets Space 62 Pages: 223-235
  • Peer Reviewed
• [Journal Article] 屈折初動走時トモグラフィ解析における初期モデルランダム化による解の信頼性評価 (2010)
  • Author(s): 白石和也・岩崎貴哉・佐藤比呂志, 他
  • Journal Title: 物理探査 63 Pages: 345-356
  • Peer Reviewed
• [Journal Article] (2010)
  • Author(s): 杉山雄一・狩野謙一・村松武, 他
  • Journal Title: 20万分の1地質図幅「静岡及び御前崎」(第2版)(産業技術総合研究所・地質調査総合センター)
• [Journal Article] Crustal structure of southwest Japan, revealed by the integrated seismic experiment Southwest Japan 2002 (2009)
  • Author(s): Ito T., H.Sato, T.Iwasaki, N.Tsumura, T.Miyauchi, S.Yamakita, 他
  • Journal Title: Tectonophysics 472 Pages: 124-134
  • Peer Reviewed
• [Journal Article] A bump on the upper surface of the Philippine Sea plate beneath the Boso Peninsula, Japan inferred from seismic reflection surveys : A possible asperity of the 1703 Genroku earthquake (2009)
  • Author(s): Tsumura N., T.Ito, T.Sato T, T.Miyauchi, H.Sato, 他
  • Journal Title: Tectonophysics 472 Pages: 39-50
  • Peer Reviewed
• [Journal Article] Active nappe with a high slip rate : Seismic and gravity profiling across the southern part of the Itoigawa-Shizuoka Tectonic Line, central Japan (2009)
  • Author(s): Ikeda Y., T.Iwasaki, K.Kano, T.Ito, H.Sato, 他
  • Journal Title: Tectonophysics 472 Pages: 72-85
  • Peer Reviewed
• [Journal Article] Deep seismic reflection profiling across active reverse faults in the Kinki Triangle, central Japan (2009)
  • Author(s): 佐藤比呂志, 岩崎貴哉, 他
  • Journal Title: Tectonophysics 472 Pages: 86-94
  • Peer Reviewed
• [Journal Article] Subsurface geometry and structural evolution of the eastern margin of the Yokote basin fault zone based on seismic reflection data, northeast Japan (2009)
  • Author(s): Kagohara K., T.Miyauchi, H.Sato, Y.Ikeda, 他
  • Journal Title: Tectonophysics 470 Pages: 319-328
  • Peer Reviewed
• [Journal Article] 陸域制御震源地震探査から明らかになった島弧地殻・上部マントル構造 (2009)
  • Author(s): 岩崎貴哉・佐藤比呂志
  • Journal Title: 地震2 61 Pages: s165-176
  • Peer Reviewed
• [Presentation] New scope extended by seismic profiling in central Japan (2010)
  • Author(s): Ito T.
  • Organizer: 14th International Symposium on Deep Seismic Profiling of the Continents and their margins, Cairns (Australia)(61-61)
  • Place of Presentation: Geoscience Australia
  • Year and Date: 20100828-20100903
• [Presentation] Deep seismic reflection profiling of the subdudction megathrust system across the Sagami trough and Tokyo bay, central Japan (2010)
  • Author(s): Sato H.
  • Organizer: 14th International Symposium on Deep Seismic Profiling of the Continents and their margins, Cairns (Australia)(111-111)
  • Place of Presentation: Geoscience Australia
  • Year and Date: 20100828-20100903
• [Presentation] Collision and bending processes of the south western Japanese island arc (2010)
  • Author(s): Yamakita S.
  • Organizer: 14th International Symposium on Deep Seismic Profiling of the Continents and their margins, Cairns (Australia)
  • Place of Presentation: Geoscience Australia
  • Year and Date: 20100828-20100903
• [Presentation] 反射法/屈折・広角反射法統合解析によって明らかとなった糸魚川-静岡構造線北部の東傾斜構造 (2010)
  • Author(s): 岩崎貴哉
  • Organizer: 日本地球惑星科学連合2010大会(SCG088-P01)
  • Place of Presentation: 日本地球惑星科学連合(幕張メッセ)
  • Year and Date: 20100523-20100528
• [Presentation] 中部日本深部地殻構造探査と新しい地殻変動論 (2009)
  • Author(s): 伊藤谷生
  • Organizer: 日本地球惑星科学連合予稿集(T226-014)
  • Year and Date: 20090000