海溝型巨大地震の準備・発生過程のモデル構築

2011 Fiscal Year Annual Research Report

• Project Area: New perspective of great subduction-zone earthquakes from the super deep drilling
• Project/Area Number: 21107007
• Research Institution: The University of Tokyo
• Principal Investigator: 井出 哲 東京大学, 大学院・理学系研究科, 准教授 (90292713)
• Co-Investigator(Kenkyū-buntansha): 吉岡 祥一 神戸大学, 大学院・理学研究科, 教授 (20222391) ; 芝崎 文一郎 建築研究所, 国際地震工学センター, 上席研究員 (20344012) ; 堀 高峰 海洋研究開発機構, 地震津波・防災研究プロジェクト・データ解析グループ, サブリーダー (00359176) ; 伊藤 喜宏 東北大学, 大学院・理学研究科, 助教 (30435581) ; 亀 伸樹 東京大学, 地震研究所, 准教授 (90304724)
• Keywords: 南海沈み込み帯 / 地震サイクル / 深部微動 / ゆっくり地震 / 動的破壊過程 / 温度構造 / 応力場 / 東北地方太平洋沖地震

Research Abstract

海溝型巨大地震の準備・発生過程のうち、研究実施計画に挙げた3項目、(A)沈み込み帯浅部の付加体形成と低速変形、(B)地震の動的破壊伝播とプレート境界面形状、(C)地震準備過程を含む地震サイクル、それぞれついて必要な計算コードの作成や計算環境の整備、試験的計算などを行った。具体的な成果は以下の通り。
(A)付加体形成過程の2次元数値実験により、複数の平行なデコルマが形成され、それらがどちらも間欠的に活動し続けることを示した。南海トラフでスロースリップの遠地地震波による動的誘発現象を発見し、繰り返し周期や潮汐加重との関係を解析した。世界の深部テクトニック微動の活動推定を行い、南海沈み込み帯の微動との比較を行った。
(B)媒質境界と相互作用する動的破壊の新しい計算法XBIEMの開発を行いモードIII型平面亀裂問題に対して均質媒質中、および、二層媒質境界上で応力および滑りが正しく計算できることを検証した。動的地震破壊過程における損傷(微小亀裂)生成の効果の重要性を、損傷テンソルという観点から明らかにした。東北地方太平洋沖地震について、経験的グリーン関数法による本震のすべりモデル推定、エネルギー放出量推定、前震本震系列の移動に関する観測データ解析、海中音波を用いた簡易測量データの分析と地海溝近傍の地震時すべり量(最大80m)の推定などの研究を行った。
(C)西南日本において、2次元熱対流モデルにプレート間の摩擦熱、地表の削剥を追加したモデルを構築して数値シミュレーションを行い、観測された地殻熱流量と調和的な結果を得た。東北地方太平洋沖地震の発生サイクルモデルを高速で著しい弱化を示す摩擦法則を用いて構築し、数10年間隔で発生するMw7。5クラスの地震とおよそ1000年間隔で発生するM9クラスの地震を再現した。長期海底地震計の観測データに、周辺の陸域観測データを加えてトモグラフィー解析を行い、南海トラフ軸周辺から陸域下までの3次元地震波速度構造モデルと震源分布を求めた。

Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

東北地方太平洋沖地震は国家的大災害を引き起こしたが、地球科学的には人類史上史上希に見る大量の高品質データが得られたという一面がある。本研究では当初想定していなかった事態であるが、従来の研究対象である南海沈み込み帯に東北の沈み込み帯も加えて研究するという体制を取ったことにより、多くの注目すべき成果が得られた。

Strategy for Future Research Activity

当初の予定通り研究計画後半へ向け、動的破壊過程と地震サイクルを中心としたモデルの総合化を進める。東北地方太平洋沖地震の分析は当初計画にはなかったが、現在は重要な研究対象である。動的破壊過程については媒質境界、自由表面、ダメージ、階層性不均質をと入り入れた動的破壊過程計算を進めると共に、データの分析によってこれらのパラメターの拘束条件を求める。地震サイクルについては温度構造や地殻構造の知見をとりいれた具体的なモデル化を目指す。また諸外国、特にニュージーランドや中南米の沈み込み帯との比較を通して南海沈み込み帯の特徴を抽出する。

Research Products

• [Journal Article] Variety and spatial heterogeneity of tectonic tremor worldwide (2012)
  • Author(s): Ide, S
  • Journal Title: J. Geophys. Res. Solid Earth Volume: 117 Pages: B03302
  • DOI: 10.1029/2011JB008840
  • Peer Reviewed
• [Journal Article] Geophysical and mineralogical constraints on the post-spinel transformation for the Tonga slab (2012)
  • Author(s): Kaneshima, S, Kubo, T., Yoshioka, S.
  • Journal Title: Physics of the Earth and Planetary Interiors Volume: 196-197 Pages: 23-31
  • DOI: 10.1016/j.pepi.2012.02.009
  • Peer Reviewed
• [Journal Article] Proposal of extended boundary integral equation method for rupture dynamics interacting with medium interfaces (2012)
  • Author(s): Kame, N., Kusakabe, T.
  • Journal Title: Journal of Applied Mechanics Volume: 79 Pages: 031017
  • DOI: 10.1115/1.4005899
  • Peer Reviewed
• [Journal Article] Frontal wedge deformation near the source region of the 2011 Tohoku-Oki earthquake (2011)
  • Author(s): Ito, Y., T. Tsuji, Y. Osada, M. Kido, D. Inazu, Y. Hayashi, H. Tsushima, R. Hino, and H. Fujimoto
  • Journal Title: Geophys. Res. Lett Volume: 38 Pages: L00G05
  • DOI: 10.1029/2011GL048355
  • Peer Reviewed
• [Journal Article] Shallow dynamic overshoot and energetic deep rupture in the 2011 Mw 9.0 Tohoku-Oki earthquake (2011)
  • Author(s): Ide, S., A. Baltay, and G. C. Beroza
  • Journal Title: Science Volume: 332 Pages: 1426-1429
  • DOI: 10.1126/science.1207020
  • Peer Reviewed
• [Journal Article] Generation mechanism of slow earthquakes : Numerical analysis based on a dynamic model with brittle-ductile mixed fault heterogeneity (2011)
  • Author(s): Nakata, R., R. Ando, T. Hori, and S. Ide
  • Journal Title: J. Geophys. Res. Solid Earth Volume: 116 Pages: B08308
  • DOI: 10.1029/2010JB008188
  • Peer Reviewed
• [Journal Article] Numerical study of splay faults in subduction zones : The effects of bimaterial interface and free surface (2011)
  • Author(s): Tamura, S., and S. Ide
  • Journal Title: J. Geophys. Res. Solid Earth Volume: 116 Pages: B10309
  • DOI: 10.1029/2011JB008283
  • Peer Reviewed
• [Journal Article] Conceptual multi-scale dynamic rupture model for the 2011 Tohoku earthquake (2011)
  • Author(s): Aochi, H., Ide, S.
  • Journal Title: Earth Planets and Space Volume: 63 Pages: 761-765
  • DOI: 10.5047/eps.2011.05.008
  • Peer Reviewed
• [Journal Article] Statistic analysis of swarm activities around the Boso Peninsula, Japan : Slow slip events beneath Tokyo Bay? (2011)
  • Author(s): Okutani, T., Ide, S.
  • Journal Title: Earth Planets and Space Volume: 63 Pages: 419-426
  • DOI: 10.5047/eps.2011.02.010
  • Peer Reviewed
• [Journal Article] Volcanic-like low-frequency earthquakes beneath Osaka Bay in the absence of a volcano (2011)
  • Author(s): Aso, N., Ohta, K., Ide, S.
  • Journal Title: Geophysical Research Letters Volume: 38 Pages: L08303
  • DOI: 10.1029/2011GL046935
  • Peer Reviewed
• [Journal Article] Metastable olivine wedge and deep dry cold slab beneath southwest Japan (2011)
  • Author(s): Kawakatsu, H., Yoshioka, S.
  • Journal Title: Earth and Planetary Science Letters Volume: 303 Pages: 1-10
  • DOI: 10.1016/j.epsl.2011.01.008
  • Peer Reviewed
• [Journal Article] 3D modeling of the cycle of a great Tohoku-oki earthquake, considering frictional behavior at low to high slip velocities (2011)
  • Author(s): Shibazaki, B., Matsuzawa, T., Tsutsumi, A., Ujiie, K., Hasegawa, A., Ito, Y.
  • Journal Title: Geophysical Research Letters Volume: 38 Pages: L21305
  • DOI: 10.1029/2011GL049308
  • Peer Reviewed
• [Journal Article] Decollement formation mechanism in subduction zones (2011)
  • Author(s): Hori, T., Sakaguchi, H.
  • Journal Title: Geophysical Journal International Volume: 187 Pages: 1089-1100
  • DOI: 10.1111/j.1365-246X.2011.05204.x
  • Peer Reviewed
• [Journal Article] Gutenberg-Richter's law in sliding friction of gels (2011)
  • Author(s): Yamaguchi, T., Morishita, M., Doi, M., Hori, T., Sakaguchi, H., Ampuero, J.P.
  • Journal Title: Journal of Geophysical Research Volume: 116 Pages: B12306
  • DOI: 10.1029/2011JB008415
  • Peer Reviewed
• [Journal Article] A possible mechanism of M 9 earthquake generation cycles in the area of repeating M 7-8 earthquakes surrounded by aseismic sliding (2011)
  • Author(s): Hori, T., Miyazaki, S.
  • Journal Title: Earth Planets and Space Volume: 63 Pages: 773-777
  • DOI: doi:10.5047/eps.2011.06.022
  • Peer Reviewed
• [Journal Article] Fast computation of quasi-dynamic earthquake cycle simulation with hierarchical matrices (2011)
  • Author(s): Ohtani, M., Hirahara, K., Takahashi, Y., Hori, T., Hyodo, M., Nakashima, H., Iwashita, T.
  • Journal Title: Procedia Computer Science Volume: 4 Pages: 1456-1465
  • DOI: 10.1016/j.procs.2011.04.158
  • Peer Reviewed
• [Journal Article] 海溝付近で発生する浅部ゆっくり地震の特徴 (2011)
  • Author(s): 有吉慶介, 堀高峰, 中田令子, J.-P.Ampuero, 松澤暢, 日野亮太, 長谷川昭
  • Journal Title: SENAC Volume: 44 Pages: 33-46
• [Journal Article] Numerical experiment of sequential data assimilation for crustal deformation between Tonankai and Nankai earthquakes (2011)
  • Author(s): Hori, T., Hyodo, M., Miyazaki, S.
  • Journal Title: Proceedings of international symposium on disaster simulation and structural safety in the next generation 2011 Pages: 175-178
• [Journal Article] Possibility of Mw 9.0 mainshock triggered by diffusional propagation of after-slip from Mw 7.3 foreshock (2011)
  • Author(s): Ando R., Imanishi, K.
  • Journal Title: Earth Planets and Space Volume: 63 Pages: 767-771
  • DOI: 10.5047/eps.2011.05.016
  • Peer Reviewed
• [Journal Article] A slow slip event triggered by teleseismic surface waves (2011)
  • Author(s): Itaba, S., Ando, R.
  • Journal Title: Geophysical Research Letters Volume: 38 Pages: L21306
  • DOI: 10.1029/2011GL049593
  • Peer Reviewed
• [Presentation] 地震のスケーリングと不均質性 (2012)
  • Author(s): 井出哲
  • Organizer: 日本物理学会第67回年次大会
  • Place of Presentation: 兵庫県西宮市(招待講演)
  • Year and Date: 2012-03-25
• [Presentation] Interplate and intraplate low-frequency earthquakes in western Japan (2012)
  • Author(s): Ide, S.
  • Organizer: Geofliud 2012
  • Place of Presentation: 鳥取県三朝町(招待講演)
  • Year and Date: 2012-03-19
• [Presentation] Towards comprehensive modeling of earthquake process in Nankai subduction zone (2012)
  • Author(s): Ide, S., Yoshioka, S., Shibazaki, B., Hori, T., Ito, Y., Kame, N., Ando, R., Mochizuki, K., Suzuki, T.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-29
• [Presentation] Modeling of the cycle of a great Tohoku-oki earthquake, considering frictional behavior at low to high slip velocities (2012)
  • Author(s): Shibazaki, B.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Proposal of extended boundary integral equation method for rupture dynamics interacting with medium interfaces (2012)
  • Author(s): Kusakabe, T., Kame, N.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Earthquake cycle simulation with revised rate- and state-dependent friction law including stress dependency in strength evolution (2012)
  • Author(s): Fujita, S., Kame, N.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Earthquake clustering with revised rate- and state-dependent friction law including stress dependency in strength evolution (2012)
  • Author(s): Fujita, S., Kame, N.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Effects of eigenvalues for damage tensor on the secondary faulting (2012)
  • Author(s): Suzuki, T.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Resolving slip evolution of deep tremor in western Japan (2012)
  • Author(s): Ohta, K., Ide, S.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Focal mechanisms of deep low-frequency earthquakes in eastern Shimane (western Tottori) (2012)
  • Author(s): Aso, N., Ide, S.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Repeating tectonic tremors in middle-aged oceanic plate : Kyushu, Japan & North Island, New Zealand (2012)
  • Author(s): Yabe, S., Ide, S.
  • Organizer: International Conference on a New Perspective of Great Earthquakes along Subduction Zones
  • Place of Presentation: 高知県高知市
  • Year and Date: 2012-02-28
• [Presentation] Some models of cycles of large earthquakes based on laboratory derived friction law (2012)
  • Author(s): Shibazaki, B.
  • Organizer: International conference on "Complexity in earthquake dynamics : From nonlinearity to earthquake prediction and seismic stability"
  • Place of Presentation: Tashkend, Uzbekistan
  • Year and Date: 2012-01-26
• [Presentation] Shallow dynamic overshoot and energetic deep rupture in the 2011 Mw 9.0 Tohoku-Oki earthquake (2011)
  • Author(s): Ide, S., Baktay, A., Tamura, S., Beroza, G.C.
  • Organizer: AGU 2011 Fall Meeting
  • Place of Presentation: San Francisco, CA, USA
  • Year and Date: 2011-12-09
• [Presentation] Proposal of Extended Boundary Integral Equation Method Include in Itinerary (XBIEM) for Rupture Dynamics Interacting with Medium Interfaces-Part II (2011)
  • Author(s): Kame, N., Kusakabe, T.
  • Organizer: AGU 2011 Fall Meeting
  • Place of Presentation: San Francisco, CA, USA
  • Year and Date: 2011-12-08
• [Presentation] After-slip of Mw 7.3 foreshock and triggering of Mw 9.0 mainshock : analysis of seismicity and numerical modeling (2011)
  • Author(s): Ando, R., Imanishi, K.
  • Organizer: AGU 2011 Fall Meeting
  • Place of Presentation: San Francisco, CA, USA
  • Year and Date: 2011-12-07
• [Presentation] Frontal wedge deformation near the source region of the 2011 Tohoku-Oki earthquake (2011)
  • Author(s): Ito, Y, Tsuji, T., Osada, Y., Kido, M., Inazu, D., Hayashi, Y., Tsushima, H., Hino, R., Fujimoto, H.
  • Organizer: AGU 2011 Fall Meeting
  • Place of Presentation: San Francisco, CA, USA(招待講演)
  • Year and Date: 2011-12-05
• [Presentation] Modes of microcracks generated by dynamic fault tip growth and their implication for the secondary faulting (2011)
  • Author(s): Suzuki, T.
  • Organizer: AGU 2011 Fall Meeting
  • Place of Presentation: San Francisco, CA, USA
  • Year and Date: 2011-12-05
• [Presentation] 深部微動は確率的地震予測にどう役立つか? (2011)
  • Author(s): 井出哲
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市(招待講演)
  • Year and Date: 2011-10-14
• [Presentation] プレート境界すべりを対象とした実データ同化に向けた課題 (2011)
  • Author(s): 堀高峰・宮崎真一・兵藤守・中田令子・有吉慶介・野田博之
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-14
• [Presentation] 媒質境界を考慮したXBIEMの応力核関数の導出と二層媒質中の破壊解析 (2011)
  • Author(s): 日下部哲也・亀伸樹
  • Organizer: 地震学会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-14
• [Presentation] スロースリップ・微動の伝播とセグメンテーション:観測と理論 (2011)
  • Author(s): 安藤亮輔・武田直人
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-14
• [Presentation] 動的地震破壊に伴って生成する微小亀裂の向きと二次破壊への影響 (2011)
  • Author(s): 鈴木岳人
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-14
• [Presentation] 沈み込み帯浅部断層物質の摩擦特性を考慮した東北地方太平洋沖地震発生サイクルのモデル化 (2011)
  • Author(s): 芝崎文一郎・堤昭人・氏家恒太郎・長谷川昭・伊藤喜宏・松澤孝紀
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-12
• [Presentation] 震源域直上の海底圧力観測に基づく2011年東北太平洋沖地震に伴う海溝付近の地震時すべり (2011)
  • Author(s): 伊藤喜宏・辻健・長田幸仁・木戸元之・稲津大祐・林豊・対馬弘晃・日野亮太・藤本博己
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-12
• [Presentation] 2011年東北地方太平洋沖地震の前震・本震から見る断層力学の普遍性 (2011)
  • Author(s): 安藤亮輔
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-12
• [Presentation] ニュージーランド北島南方ヒクランギ沈み込み帯固着領域内SAHKE構造調査測線における地震波速度構造 (2011)
  • Author(s): 望月公廣・山田知朗・篠原雅尚・岩崎貴哉・佐藤比呂志
  • Organizer: 日本地震学会2011年度秋季大会
  • Place of Presentation: 静岡県静岡市
  • Year and Date: 2011-10-12
• [Presentation] Modeling slow and fast ruptures at shallow subduction zones by considering friction at low-high slip velocities (2011)
  • Author(s): Shibazaki, B.
  • Organizer: International Symposium on Disaster Simulation & Structural Safety in the Next Generation
  • Place of Presentation: 兵庫県神戸市
  • Year and Date: 2011-09-18
• [Presentation] Spontaneous decollement formation and evolution in accretionary prisms (2011)
  • Author(s): Hori, T., Sakaguchi, H.
  • Organizer: AOGS 2011
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-08-11
• [Presentation] Variety of tectonic tremor in the Nankai subduction zone (2011)
  • Author(s): Ide, S.
  • Organizer: AOGS 2011
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-08-10
• [Presentation] Modeling earthquake cycles using friction law that exhibits strong velocity weakening at high slip velocity (2011)
  • Author(s): Shibazaki, B.
  • Organizer: AOGS 2011
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-08-10
• [Presentation] Proposal of XBIEM toward Dynamic Rupture Simulation Interacting with Medium Interface (2011)
  • Author(s): Kame, N.
  • Organizer: AOGS 2011
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-08-10
• [Presentation] Fault rupture delimited by on-fault diffusion (2011)
  • Author(s): Ando, R.
  • Organizer: AOGS 2011
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-08-10
• [Presentation] Understanding of dynamic fault slip behavior in terms of damage and energy release tensors (2011)
  • Author(s): Suzuki, T.
  • Organizer: AOGS 2011
  • Place of Presentation: Taipei, Taiwan
  • Year and Date: 2011-08-10
• [Presentation] Geometrical constraints on world deep tremor (2011)
  • Author(s): Ide, S.
  • Organizer: IUGG 2011
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2011-07-04
• [Presentation] Understanding of the secondary fracture associated with dynamic fault slip in terms of damage tensor (2011)
  • Author(s): Suzuki, T.
  • Organizer: 2011 IUGG General Assembly
  • Place of Presentation: Melbourne, Australia
  • Year and Date: 2011-07-02
• [Presentation] 損傷発達によるエネルギー変化に基づく二次的破壊の多様性の理解 (2011)
  • Author(s): 鈴木岳人
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-27
• [Presentation] 西南日本下の断裂したフィリピン海レート,日本地球惑星科学連合 (2011)
  • Author(s): 井出哲・汐見勝彦・望月公廣・利根川貴志・木村学
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市(招待講演)
  • Year and Date: 2011-05-26
• [Presentation] 断層潤滑を考慮した東北地方太平洋沖地震発生過程のモデル化 (2011)
  • Author(s): 芝崎文一郎・松澤孝紀・藤井雄士郎
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-26
• [Presentation] 応力依存項を含むRSF則による地震破壊核形成シミュレーション (2011)
  • Author(s): 藤田哲史・亀伸樹
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-26
• [Presentation] Geometrical constraints on world deep tremor (2011)
  • Author(s): Ide, S.
  • Organizer: JpGU Meeting 2011
  • Place of Presentation: 千葉県千葉市(招待講演)
  • Year and Date: 2011-05-25
• [Presentation] 紀伊半島西方におけるフィリピン海プレートの沈み込みに関する海陸統合構造調査 (2011)
  • Author(s): 望月公廣・加藤愛太郎・飯高隆・蔵下英司・篠原雅尚・仲西理子・佐藤壮・尾鼻浩一郎・高橋成実・小平秀一・金田義行・武田哲也・汐見勝彦
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-25
• [Presentation] Mechanical processes of preparation for large scale events (2011)
  • Author(s): 堀高峰・阪口秀
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-24
• [Presentation] 東南海地震後から南海地震までの地殼変動データに対する逐次データ同化の数値実験 (2011)
  • Author(s): 堀高峰・兵藤守・宮崎真一
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-24
• [Presentation] 十勝沖における浅部超低周波地震活動のモデル化 (2011)
  • Author(s): 芝崎文一郎・浅野陽一・堤昭人・氏家恒太郎・伊藤喜宏・小原一成
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-22
• [Presentation] 2011年東北地方太平洋沖地震の震源域直上における海底圧力観測 (2011)
  • Author(s): 伊藤喜宏・辻健・長田幸仁・木戸元之・稲津大祐・林豊・対馬弘晃・日野亮太・藤本博己
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-22
• [Presentation] 拡散に律速された断層破壊 (2011)
  • Author(s): 安藤亮輔
  • Organizer: 日本地球惑星科学連合2011年大会
  • Place of Presentation: 千葉県千葉市
  • Year and Date: 2011-05-22
• [Presentation] Numerical experiment of sequential data assimilation for crustal deformation between Tonankai & Nankai earthquakes (2011)
  • Author(s): Hori, T.
  • Organizer: ACES workshop
  • Place of Presentation: Maui, HI, USA
  • Year and Date: 2011-05-03
• [Presentation] The source process of the 2001 Tohoku-Oki earthquake estimated by empirical Green's function analysis (2011)
  • Author(s): Ide, S., Baltay, A., Beroza, G.C.
  • Organizer: SSA 2011 Annual Meeting
  • Place of Presentation: Memphis, TN, USA
  • Year and Date: 2011-04-15
• [Book] 東日本大震災を解き明かす (2011)
  • Author(s): NHK「サイエンスZERO」取材班・古村孝志・伊藤喜宏・辻健
  • Total Pages: 126
  • Publisher: NHK出版
• [Book] Generation Mechanism of Giant Earthquakes in Subduction Zones with Smaller-size Interplate Earthquakes During Interseismic Period, a chapter in "Earthquake Research and Analysis/Book 1" (2011)
  • Author(s): Hori, T., Hyodo, M., Miyazaki, S.
  • Total Pages: 370
  • Publisher: InTech
• [Remarks]
  • URL: http://www-solid.eps.s.u-tokyo.ac.jp/nantro~/