Urgency Evaluation of the Nankai Great Earthquake and Tsunami by Scientific Ocean Drilling

2016 Fiscal Year Annual Research Report

• Project/Area Number: 15H05717
• Research Institution: Tokyo University of Marine Science and Technology
• Principal Investigator: 木村 学 東京海洋大学, 学術研究院, 特任教授 (80153188)
• Co-Investigator(Kenkyū-buntansha): 金川 久一 千葉大学, 大学院理学研究院, 教授 (40185898) ; 木下 正高 東京大学, 地震研究所, 教授 (50225009) ; 山田 泰広 国立研究開発法人海洋研究開発機構, 海洋掘削科学研究開発センター, 研究開発センター長 (20362444) ; 荒木 英一郎 国立研究開発法人海洋研究開発機構, その他, 研究員 (60359130)
• Project Period (FY): 2015-05-29 – 2020-03-31
• Keywords: 減災 / 固体地球物理学 / 地震 / 深海環境 / 地球観測

Outline of Annual Research Achievements

本研究では、これまで紀伊半島沖熊野灘において実施されてきた南海トラフ地震発生帯掘削研究（超深度掘削は海底下約3,000mまで掘削済みでプレート境界断層まで残り約2,200m）の総仕上げとして、プレート境界断層貫通掘削までの掘削時孔内検層、孔内設置受振器による3次元鉛直地震探査、断層試料の摩擦実験、近傍からの繰り返し周回地震探査を実施する。もって断層上盤の応力場・主応力と間隙水圧、プレート境界断層の摩擦強度を解明し、それらを総合して地震・津波発生切迫度を定量的に評価することを目的とする。第2年度は、これまでの掘削によって得られたデータをまとめ上げ、モデル化し、上盤プレート上部の応力場、間隙水圧を解明した。
概要は以下の通りである。
１）3次元反射法データの最新技術による再解析。特に地震発生プレート境界断層から分岐断層にかけて実施。詳細な構造の実態解明、速度構造の変化が予測された。
２）既存データの解析、実験的分析の蓄積、完了。海底下3,000m下までの摩擦特性計測実験を完了し、深度方向の変化が予察的に得られた。
３）掘削孔内に設置してあった圧力計などの回収を実施した。10年間の記録の回収に成功した。2016年4月1日には70年ぶりに起こった南海プレート境界地震の世界初の孔内観測に成功、結果の迅速な公開を実施した。
４）最終的な科学掘削目標達成のための慎重な技術的検討を掘削実施主体である海洋研究開発機構と適宜進めた。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

南海トラフ地域における既存三次元反射法地震探査データの一部を高度な反射波信号処理技術とイメージング技術を適用して新たに解析した結果、既存の解析結果に比べて高品質かつ高解像度な地下構造イメージが得られ、地震断層と想定されるプレート境界及び断層の三次元形状や、これまで理解が不十分であった付加体内部の変形構造が明らかになった。また、この解析によって巨大分岐断層の上盤側に厚い高速度帯の存在が検出された。その結果から，ライザー掘削時のVSP等の孔内計測計画を検討することが可能となった。
南海トラフ東南海地震震源域の分岐断層を横断する位置のC0010A掘削孔へ孔内観測点の設置を4月～５月にかけて行うとともに、６月～７月には、設置した孔内観測点をDONET(地震・津波観測監視システム）に接続を行い、連続的な観測を開始することに成功した。また、設置中の2016/4/1には、孔内観測点の近傍でMw6.0の地震が発生し、孔内観測点およびDONETから得られたデータの解析をし、プレート境界滑りによる地震であること、地震と地震後の地殻変動を孔内観測によって高感度に観測できることを明らかにした。
IODP掘削地点C0002の海底下から採取された泥質堆積物試料について、試料原位置相当の温度（51~98℃）・封圧（44~83 MPa）・間隙水圧（32~50 MPa）の下で変位速度を0.1155, 1.155, 11.55 μm/sの間でステップ状に変化させながら三軸摩擦実験を行った。結果、深度増加に伴う摩擦強度の低下傾向が認められ、深度増加に伴って摩擦強度の変位速度依存性が変化している可能性があることが明らかとなった。
先端部プレート境界断層の微細構造復元にはじめて成功し、津波発生すべりとゆっくりすべりの関係が明らかとなった。

Strategy for Future Research Activity

平成30年度は、10月から4ヶ月半かけて、地球深部探査船「ちきゅう」によって海底（水深約2,000m）下、約5,200mに推定されている南海トラフプレート境界断層に達する掘削が実施される予定であるが、本研究の研究分担者、協力者がその中心となって実施する。
1. 船上において、孔内検層・計測、掘削泥水漏洩観測、掘削コア試料擬弾性変形、および鉛直地震探査に基づいて、プレート境界断層上盤側の現在の応力場・主応力、および間隙水圧を定量し、プレート境界断層に作用する剪断応力と有効垂直応力（＝垂直応力－間隙水圧）を求める。回収されるカッティングス（掘削による岩片）の船上分析によって、上盤プレートを構成する地質、年代、物性、化学的特徴を明らかにする。掘削コア試料のX線CT画像処理によって断層の内部構造、物性を明らかにする。
2. 掘削航海終了後、平成31年度7月までに、回収された断層およびその上盤、下盤の岩石試料を用いて、摩擦特性、水理特性を決める。
3. 平成29年度設置に成功した付加体先端部、南海トラフ直近の孔内観測装置（掘削地点C0006）によるスロー地震の震源把握精度を向上させるため、三次元地震反射データ再解析地域を平成30年度に拡大する。
最終年度の平成31年度は、平成30年度のデータ及び試料の解析・分析を実施し、本研究のまとめを行う。本研究によって得られた成果を総合し、南海トラフに予想されている巨大地震の切迫度の定量的評価を探り、本研究の目的を達成する。

Research Products

• [Journal Article] Temporal variation of the shallow subsurface at the Aquistore CO2 storage site associated with environmental influences using a continuous and controlled seismic source (2017)
  • Author(s): Ikeda, T., Tsuji, T., Takahashi, M., Kurosawa, I., Nakatsukasa, M., Kato, A., Worth, K., White, D. and Roberts, B.
  • Journal Title: Journal of Geophysical Research Volume: 122 Pages: 2859-2872
  • DOI: 10.1002/2016JB013691
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Elasticity and Stability of Clathrate Hydrate: Role of Guest Molecule Motions (2017)
  • Author(s): Jia, J., Liang, Y., Tsuji, T., Murata, S. and Matsuoka, T.
  • Journal Title: Scientific Reports Volume: 7 Pages: -
  • DOI: 10.1038/s41598-017-01369-0
  • Peer Reviewed / Open Access
• [Journal Article] Horizontal sliding of kilometre-scale hot spring area during the 2016 Kumamoto earthquake (2017)
  • Author(s): Tsuji, T., Ishibashi, J., Ishitsuka, K. and Kamata, R.
  • Journal Title: Scientific Reports Volume: 7 Pages: -
  • DOI: 10.1038/srep42947
  • Peer Reviewed / Open Access
• [Journal Article] Geophysical imaging of subsurface structures in volcanic area by seismic attenuation profiling (2017)
  • Author(s): Tsuru, T., No, T. and Fujie, G.
  • Journal Title: Earth, Planets and Space, Volume: 69 Pages: -
  • DOI: 10.1186/s40623-016-0592-0
  • Peer Reviewed / Open Access
• [Journal Article] 地下エネルギー資源の探査 (2017)
  • Author(s): 山田泰広
  • Journal Title: 化学と教育 Volume: 65 Pages: 8-11
  • Peer Reviewed
• [Journal Article] Temporal stress variations along a seismogenic megasplay fault in the subduction zone: An example from the Nobeoka Thrust, southwestern Japan (2017)
  • Author(s): Kawasaki, R., Hamahashi, M., Hashimoto, Y., Otsubo, M., Yamaguchi, A., Kitamura, Y., Kameda, J., Hamada, Y., Fukuchi, R. and Kimura, G.
  • Journal Title: Island Arc Volume: 26 Pages: -
  • DOI: 10.1111/iar.12193
  • Peer Reviewed / Open Access
• [Journal Article] Acoustic properties of deformed rocks in the Nobeoka thrust, in the Shimanto Belt, Kyushu, Southwest Japan (2017)
  • Author(s): Hashimoto, Y., Abe, S., Tano, H., Hamahashi, M., Saito, S., Kimura, G., Yamaguchi, A., Fukuchi, R., Kameda, J., Hamada, Y., Kitamura, Y., Fujimoto, K., Hina, S. and Eida, M.
  • Journal Title: Island Arc Volume: 26 Pages: -
  • DOI: 10.1111/iar.12198
  • Peer Reviewed / Open Access
• [Journal Article] Strength and deformation behavior of the Shimanto accretionary complex across the Nobeoka thrust (2017)
  • Author(s): Kitajima, H., Takahashi, M., Otsubo, M., Saffer, D. and Kimura, G.
  • Journal Title: Island Arc Volume: 26 Pages: -
  • DOI: 10.1111/iar.12192
  • Peer Reviewed / Open Access
• [Journal Article] Opal-CT in chert beneath the toe of the Tohoku margin and its influence on the seismic aseismic transition in subduction zones (2017)
  • Author(s): Kameda, J., Okamoto, A., Sato, K., Fujimoto, K., Yamaguchi, A. and Kimura, G.
  • Journal Title: Geophysical Research Letters Volume: 44 Pages: 687-693
  • DOI: 10.1002/2016GL071784
  • Peer Reviewed / Open Access
• [Journal Article] 2016年熊本地震に伴う江津湖・水前寺周辺の局所的な地表変動 (2016)
  • Author(s): 石塚 師也, 辻 健, 松岡 俊文
  • Journal Title: 日本リモートセンシング学会誌 Volume: 36 Pages: 218-222
  • DOI: 10.11440/rssj.36.218
  • Open Access
• [Journal Article] Near-trench slip potential of megaquakes evaluated from fault properties and conditions (2016)
  • Author(s): Hirono, T., Tsuda, K., Tanikawa, W., Ampuero, J.-P., Shibazaki, B., Kinoshita, M. and Mori, J. J.
  • Journal Title: Scientific Reports Volume: 6 Pages: -
  • DOI: 10.1038/srep28184
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Near-field observations of an offshore Mw 6.0 earthquake from an integrated seafloor and subseafloor monitoring network at the Nankai Trough, southwest Japan (2016)
  • Author(s): Wallace, L. M., Araki, E., Saffer, D., Wang, X., Roesner, A., Kopf, A., Nakanishi, A., Power, W., Kobayashi, R., Kinoshita, C., Toczko, S., Kimura, T., Machida, Y. and Carr, S.
  • Journal Title: Journal of Geophysical Research Volume: 121 Pages: 8338-8351
  • DOI: 10.1002/2016JB013417
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Source and sink of fluid in pelagic siliceous sediments along a cold subduction plate boundary (2016)
  • Author(s): Yamaguchi, A., Hina, S., Hamada, Y., Kameda, J., Hamahashi, M., Kuwatani, T., Shimizu, M. and Kimura, G.
  • Journal Title: Tectonophysics Volume: 686 Pages: 146-157
  • DOI: 10.1016/j.tecto.2016.07.030
  • Peer Reviewed / Open Access
• [Journal Article] ポロシリオフィオライト中に見出された左横ずれ剪断帯における変成作用とマイロナイト化 (2016)
  • Author(s): Kato, A., *Kanagawa, K. and Hiroi, Y.
  • Journal Title: 地質学雑誌 Volume: 122 Pages: 461-475
  • DOI: 10.5575/geosoc.2016.0017
  • Peer Reviewed / Open Access
• [Journal Article] Development of surface-wave monitoring system for leaked CO 2 using a continuous and controlled seismic source (2016)
  • Author(s): Ikeda, T., Tsuji, T., Watanabe, T. and Yamaoka, K.
  • Journal Title: International Journal of Greenhouse Gas Control Volume: 45 Pages: 94-105
  • DOI: 10.1016/j.ijggc.2015.11.030
  • Peer Reviewed / Open Access
• [Journal Article] Numerical investigations on the effect of initial state CO 2 topology on capillary trapping efficiency (2016)
  • Author(s): Jiang, F. and Tsuji, T.
  • Journal Title: International Journal of Greenhouse Gas Control Volume: 49 Pages: 179-191
  • DOI: 10.1016/j.ijggc.2016.03.006
  • Peer Reviewed / Open Access
• [Journal Article] Microscopic Origin of Strain Hardening in Methane Hydrate (2016)
  • Author(s): Liang, Y., Tsuji, T. and Matsuoka, T.
  • Journal Title: Scientific Reports Volume: 6 Pages: -
  • DOI: 10.1038/srep23548
  • Peer Reviewed / Open Access
• [Journal Article] Pixel-based interferometric pair selection in InSAR time series analysis with baseline criteria (2016)
  • Author(s): Ishitsuka, K., Tsuji, T. and Matsuoka, T.
  • Journal Title: Remote Sensing Letters Volume: 7 Pages: 711-720
  • DOI: 10.1080/2150704X.2016.1182660
  • Peer Reviewed / Open Access
• [Journal Article] Using seismic noise derived from fluid injection well for continuous reservoir monitoring (2016)
  • Author(s): Tsuiji, T., Ikeda, T., Johansen, T.A. and Ruud, B.O.
  • Journal Title: Interpretation Volume: 4 Pages: SQ1-SQ11
  • DOI: 10.1190/INT-2016-0019.1
  • Peer Reviewed
• [Journal Article] Surface wave attenuation in the shallow subsurface from multichannel?multishot seismic data: a new approach for detecting fractures and lithological discontinuities (2016)
  • Author(s): Ikeda, T. and Tsuji, T.
  • Journal Title: Earth, Planets and Space Volume: 68 Pages: -
  • DOI: 10.1186/s40623-016-0487-0
  • Peer Reviewed / Open Access
• [Journal Article] Estimation of three-phase relative permeability by simulating dynamics directly on rock-microstructure images (2016)
  • Author(s): Jiang, G. and Tsuji, T.
  • Journal Title: Water Resources Research Volume: 53 Pages: 11-32
  • DOI: 10.1002/2016WR019098
  • Peer Reviewed / Open Access
• [Journal Article] Gas-hydrate-bearing sand reservoir systems in the offshore of India: Results of the India National Gas Hydrate Program Expedition 02 (2016)
  • Author(s): Kumar, P., Collett, T.S., Vishwanath, K., Shukla, K. M., Nagalingam, J., Lall, M. V., Yamada, Y., Schultheiss, P. and Holland, M.
  • Journal Title: Fire in the Ice Volume: 16 Pages: 1-8
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Stress changes in an accretionary wedge related to the displacement of an out-of-sequence thrust in a numerical simulation (2016)
  • Author(s): Miyakawa, A., Yamada, Y. and Otsubo, M.
  • Journal Title: Island Arc Volume: 25 Pages: 433-435
  • DOI: 10.1111/iar.12149
  • Peer Reviewed / Open Access
• [Journal Article] Thermal properties and thermal structure in the deep-water coalbed basin off the Shimokita Peninsula, Japan (2016)
  • Author(s): Tanikawa, W., Tadai, O., Morita, S, Lin, W., Yamada, Y., Sanada, Y., Moe, K., Kubo, Y. and Inagaki, F.
  • Journal Title: Marine and Petroleum Geology Volume: 73 Pages: 445-461
  • DOI: 10.1016/j.marpetgeo.2016.03.006
  • Peer Reviewed / Open Access
• [Journal Article] Benchmarking analogue models of brittle thrust wedges (2016)
  • Author(s): Schreurs, G., Buiter, S.J. H., , Boutelier, J., Burberry, C., Yamada Y. 計40名
  • Journal Title: Journal of Structural Geology Volume: 92 Pages: 116-139
  • DOI: 10.1016/j.jsg.2016.03.005
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] Horizontal sliding of Uchinomaki hot spring area during the 2016 Kumamoto earthquake: Insight from satellite data, field observations and direct borehole measurements (2017)
  • Author(s): Tsuji, T.
  • Organizer: International Workshop on the 2016 Kumamoto Earthquake
  • Int'l Joint Research / Invited
• [Presentation] Modeling of rock evolution process: Insight from digital rock physics (2017)
  • Author(s): Tsuji, T.
  • Organizer: 4th International Geoscience Symposium "Precambrian World 2017"
  • Int'l Joint Research
• [Presentation] 熊野灘三次元地震探査データの再解析による新しい地殻構造イメージ (2017)
  • Author(s): 白石和也・Moore G.・山田泰広・木下正高・真田佳典・木村 学
  • Organizer: ブルーアース2017
• [Presentation] Lord Howe Riseプロジェクト－地殻構造からのアプローチ (2017)
  • Author(s): 海宝由佳・小平秀一・藤江 剛・斎藤実篤・Flora Gallais, F.・Boston, B.・大平 茜・白井太朗・白石和也・川村善久・三浦誠一・山田泰広・KR16-05乗船研究者一同
  • Organizer: ブルーアース2017
• [Presentation] 地球探査船による地球の診断と地盤調査の関わり (2017)
  • Author(s): 山田泰広
  • Organizer: 京都地盤研究会第63回研究会
  • Invited
• [Presentation] デジタルロックを利用した地盤のモデル化と探査データの解釈 (2017)
  • Author(s): 辻 健
  • Organizer: 物理探査学会・深田地質研究所共催シンポジウム「物理探査の評価と解釈の最前線」
  • Invited
• [Presentation] Science to explore subsurface (2017)
  • Author(s): 山田泰広
  • Organizer: A3 Foresight Program
  • Invited
• [Presentation] Latest-Miocene onset of Nankai Trough Subduction due to regional Change in Plate tectonic Framework (2016)
  • Author(s): Kimura, G., Koge, H., Tsuji, T. and Moore, G.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research / Invited
• [Presentation] Improved 3D seismic images of dynamic deformation in the Nankai Trough off Kumano (2016)
  • Author(s): Shiraishi, K., Moore, G., Yamada, Y., Kinoshita, M. Sanada, Y. and Kimura, G.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Core-log-seismic integrative study of a subduction zone megasplay fault -An example from the Nobeoka Thrust, Shimanto Belt, Southwest Japan (2016)
  • Author(s): Hamahashi, M., Tsuji, T., Saito, S., Tanikawa, W., Hamada, Y., Hashimoto, Y. and Kimura, G.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Scaly fabrics and veins of the Mugi and Makimine melanges in the Shimanto belt, SW Japan (2016)
  • Author(s): Ramirez, G. E., Fisher, D., Yamaguchi, A. and Kimura, G.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Frictional properties of the Nankai Trough accretionary mud samples collected from 1000-3000 mbsf at IODP Site C0002 (2016)
  • Author(s): Kanagawa, K., Hoshino, K., Abe, K. and Sawai, M.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Variation in porosity of the Nankai Trough incoming sediments off the Kii Peninsula, Southwest Japan (2016)
  • Author(s): Park, J.-O.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Measuring relative motions across a fault using seafloor transponders installed at close range to each other based on differential GPS/acoustic technique (2016)
  • Author(s): Kido, M., Ashi, J., Tsuji, T. and Tomita, F.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Lord Howe Rise deep stratigraphic drilling: tectonics, climate and ancient life (2016)
  • Author(s): Hackney, R., Yamada, Y., Grice, K., Kuroda, J., Whiteside, J. H., Coolen, M. J. L., Inagaki, F., Arculus, R., Miller, R.D., Saito, S. and LHR IODP Science Team
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Episodic uplifting, erosion and sedimentation of Taiwan, a possible target of scientific ocean drilling (2016)
  • Author(s): Yamada, Y., Lin, A. T.-S., Liu, C.-S. and Saito, S.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Permeability structure and its influence on microbial activity at off-Shimokita basin, Japan (2016)
  • Author(s): Tanikawa, W., Yamada, Y., Sanada, Y., Kubo, Y. and Inagaki, F.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] The Lord Howe Rise continental ribbon: a fragment of eastern Gondwana that reveals the drivers of continental rifting and plate tectonics (2016)
  • Author(s): Saito S., Hackney, R., Bryan, S., Kimura, J.-I., Miller, R. D., Arculus, R., Mortimer, N., Collot, J., Tamura, Y., Yamada, Y. and LHR IODP Science Team
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] First insights into the deep structure across the Tasman Basin and Lord Howe Rise from wide-angle seismic data (2016)
  • Author(s): Gallais, F., Kodaira, S., Fujie, G., Miura, S., Kaiho, Y., Yamada, Y., Saito, S., Shiraishi, K., Boston, B., Nakamura, Y., Hackney, R. I., Nichol, S., Bernardel, G. and Mitchell, C.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] The Lord Howe Rise: new views of the enigmatic continental ribbon breakup from multi-channel seismic reflection data (2016)
  • Author(s): Boston, B., Kodaira, S., Nakamura, Y., Miura, S., Fujie, G., Kaiho, Y., Shirai, T., Yamada, Y., Saito, S., Shiraishi, K., Gallais, F., Hackney, R. I., Nichol, S., Bernardel, G. and Mitchell, C.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Continuous depth profile of mechanical properties in the Nankai accretionary prism based on drilling performance parameters (2016)
  • Author(s): Hamada, Y., Kitamura, M., Yamada, Y., Sanada, Y., Moe, K. and Hirose, T.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Sequence of slow slip events and low frequency earthquakes in the shallow part of the Nankai Trough seismogenic zone observed by seafloor observation network (2016)
  • Author(s): Araki, E., Saffer, D. M., Kopf, A., To, A., Ide, S., Nakano, M., Kimura, T. and Machida, Y.
  • Organizer: AGU 2016 Fall Meeting
  • Int'l Joint Research
• [Presentation] Fault displacement and fluid in the earth (2016)
  • Author(s): Tsuji, T.
  • Organizer: Hungary-Japan (HAS-JSPS) Workshop on Physics of Rheology and Fracture
  • Int'l Joint Research / Invited
• [Presentation] Mathematical descriptions of rock pore geometry and its evolution (2016)
  • Author(s): Tsuji, T.
  • Organizer: Forum "Math-for-Industry"
  • Int'l Joint Research / Invited
• [Presentation] Influence of slip flow at fluid-solid interface upon permeability of natural rock (2016)
  • Author(s): Singh, S., Jiang, F. and Tsuji, T.
  • Organizer: 13th Conference on Greenhouse Gas Control Technologies
  • Int'l Joint Research
• [Presentation] Robust subsurface monitoring using a continuous and controlled seismic source (2016)
  • Author(s): Ikeda, T. and Tsuji, T.
  • Organizer: 13th Conference on Greenhouse Gas Control Technologies
  • Int'l Joint Research
• [Presentation] 長期孔内観測システムの開発と南海トラフ地震発生帯での観測 (2016)
  • Author(s): 荒木英一郎・木村俊則・町田裕弥・川口勝義・許 正則・猿橋具和・Toczko, S.・横引貴史・西田周平・Saffer, D.・Kopf, A.
  • Organizer: 海洋調査技術学会第28回研究成果発表会
• [Presentation] Modeling and imaging multiply generated and scattered tube waves due to multiple hydraulic fractures (2016)
  • Author(s): Minato, S., Ghose, R., Tsuji, T., Ikeda, M. and Onishi, K.
  • Organizer: Society of Exploration Geophysicists 86th Annual Meeting
  • Int'l Joint Research
• [Presentation] Time-lapse monitoring of shallow subsurface in the Aquistore CO2 storage site from surface-wave analysis using a continuous and controlled seismic source (2016)
  • Author(s): Ikeda, T., Tsuji, T., Takanashi, M., Kurosawa, I., Nakatsukasa, M., White, D., Worth, K. and Roberts, B.
  • Organizer: Society of Exploration Geophysicists 86th Annual Meeting
  • Int'l Joint Research
• [Presentation] なぜ今私たちは海をめざすのか (2016)
  • Author(s): 山田泰広
  • Organizer: 神戸大学－海洋研究開発機構包括連携シンポジウム
  • Invited
• [Presentation] Deep seafloor borehole observatories for seismogenic zone monitoring (2016)
  • Author(s): Araki, E., Kimura, T., Machida, Y., Yokobiki, T., Nishida, S., Kawaguchi, K., Kyo, M., Saruhashi, T., Toczko, S., Saffer, D. and Kopf, A.
  • Organizer: Techno-Ocean 2016 ~Return to the Oceans~
  • Int'l Joint Research
• [Presentation] 地震研究情報データ提供システム（J-SEIS）の開発（2） (2016)
  • Author(s): 坪井誠司・堀川博紀・高江洲盛史・末木健太朗・荒木英一郎・園田 朗・高橋成実
  • Organizer: 日本地震学会2016年度秋季大会
• [Presentation] 熊本地震における内牧温泉域の水平移動の直接観測 (2016)
  • Author(s): 辻 健・石橋純一郎・鎌田龍一
  • Organizer: 日本地震学会2016年度秋季大会
• [Presentation] 反射法地震探査データを用いた地震波減衰構造の推定法と火山岩地域への適用 (2016)
  • Author(s): 鶴 哲郎・野 徹雄・藤江 剛
  • Organizer: 日本地震学会2016年度秋季大会
• [Presentation] The Lord Howe Rise: newly-acquired multi-channel and wide-angle seismic data to study an enigmatic continental ribbon (2016)
  • Author(s): Gallais, F., Kodaira, S., Miura, S., Fujie, G., Yamada, Y., Saito, S., Shiraishi, K., Boston, B., Nakamura, Y., Hackney, R., Nichol, S., Bernardel, G., Mitchell, C. and IODP 871-CCP Proponent Team
  • Organizer: 日本地震学会2016年度秋季大会
• [Presentation] Filling observational gap of seafloor dynamics in seismic cycles by seafloor borehole observation network (2016)
  • Author(s): Araki, E., Kimura, T., Machida, Y., Yokobiki, T., Nishida, S. and Kawaguchi, K.
  • Organizer: Subduction Zone Observatory Workshop
  • Int'l Joint Research
• [Presentation] Data-driven science: Challenges of scientific drilling (2016)
  • Author(s): Yamada, Y.
  • Organizer: 22nd Formation Evaluation Symposium of Japan
  • Invited
• [Presentation] Elastic properties of fault core samples using digital rock physics: Insight into seismogenic fault characterization (2016)
  • Author(s): Eng, C., Ikeda, T. and Tsuji, T.
  • Organizer: 22nd Formation Evaluation Symposium of Japan
• [Presentation] 天然岩石の間隙形状の数学的な記述方法 (2016)
  • Author(s): 辻 健
  • Organizer: 日本数学会2016年度秋季総合分科会数学連携ワークショップ－物質材料科学に潜む『数理』を探る－
• [Presentation] Slow slip events observed by seafloor borehole observatories in the Nankai Trough (2016)
  • Author(s): Araki, E., Saffer, D., Kopf, A., Kimura, T., Machida, Y., Ide, S., Nakano, M. and Toh, A.
  • Organizer: Joint Workshop on Slow Earthquakes 2016
• [Presentation] Latest-Miocene onset of Nankai Trough Subduction due to regional change in plate tectonic framework (2016)
  • Author(s): 木村 学・高下裕章・辻 健・Moore, G.
  • Organizer: 日本地質学会第123年学術大会
• [Presentation] 日本海溝におけるチャートの変形・続成過程 (2016)
  • Author(s): 亀田 純・岡本 敦・佐藤公法・藤本光一郎・木村 学
  • Organizer: 日本地質学会第123年学術大会
• [Presentation] IODP掘削地点C0002の海底下1000~3000mから採取された、南海トラフ付加体泥質堆積物試料の摩擦特性 (2016)
  • Author(s): 星野紘輝・阿部浩典・澤井みち代・金川久一
  • Organizer: 日本地質学会第123年学術大会
• [Presentation] 白亜系四万十帯構成岩類の震源域条件における摩擦特性 (2016)
  • Author(s): 阿部浩典・星野紘輝・澤井みち代・金川久一
  • Organizer: 日本地質学会第123年学術大会
• [Presentation] 掘削パラメータを利用した南海トラフC0002サイトにおける連続的な岩石強度の推定 (2016)
  • Author(s): 濱田洋平・北村真奈美・山田泰広・真田佳典・モーキョー・廣瀬丈洋
  • Organizer: 日本地質学会第123年学術大会
• [Presentation] Lord Howe Rise掘削コア (DSDP Site 208) の白亜系－旧成系（古第三系）境界層の地球化学的特徴 (2016)
  • Author(s): 黒田潤一郎・斎藤実篤・臼井洋一・安藤卓人・萩野恭子・熊 かん昕・山田泰広
  • Organizer: 日本地質学会第123年学術大会
• [Presentation] Optimal interferometric combinations selection for InSAR time-series analysis using coherence and baseline distribution (2016)
  • Author(s): Ishitsuka, K., Tsuji, T. and Matsuoka, T.
  • Organizer: CEOS (The Committee on Earth Observation Satellites) Calibration and Validation Workshop 2016
• [Presentation] Lord Howe Rise deep stratigraphic drilling: tectonics, climate and ancient life (2016)
  • Author(s): Hackney, R., Yamada, Y., Grice, K., Kuroda, J., Whiteside, J. H., Coolen, M. J. L., Inagaki, F., Arculus, R., Muller, R. D., Saito, S. and LHR IODP Science Team
  • Organizer: 35th International Geological Congress
  • Int'l Joint Research
• [Presentation] Lord Howe Rise Drilling (2016)
  • Author(s): 山田泰広
  • Organizer: 石油技術協会探鉱技術委員会砂岩分科会
• [Presentation] Long-term and large-scale tectonic framework controlling the seismogenic subduction zone earthquake -A case study in the Nankai Trough- (2016)
  • Author(s): Kimura, G. and Kinoshita, M.
  • Organizer: AOGS 13th Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] IODP NanTroSEIZE drilling project: Structure and state of stress in the Nankai subduction megathrust fault zone and wedge (2016)
  • Author(s): Tobin, H., Kinoshita, M., Saffer, D. and Kimura, G.
  • Organizer: AOGS 13th Annual Meeting
  • Int'l Joint Research
• [Presentation] Geothermal restoration in the Nankai Trough seismogenic zone: Challenge toward improved assessment of the fault strength (2016)
  • Author(s): Kinoshita, M. and Miyakawa, A.
  • Organizer: AOGS 13th Annual Meeting
  • Int'l Joint Research
• [Presentation] Digital rock physics for evaluating effects of CO2 saturation on seismic velocity in natural sandstone (2016)
  • Author(s): Ikeda, T., Jiang, F. and Tsuji, T.
  • Organizer: AOGS 13th Annual Meeting
  • Int'l Joint Research
• [Presentation] 次世代の貯留層モデリングとモニタリングに向けたデジタル岩石物理 (2016)
  • Author(s): 辻 健
  • Organizer: 講演会“資源開発工学の展望～探査工学・海底資源開発の最前線”
  • Invited
• [Presentation] Description of heterogeneous rock pore structures using mathematical methods (2016)
  • Author(s): Tsuji, T.
  • Organizer: Study Group Workshop 2016
  • Invited
• [Presentation] Digitization of natural rocks for estimation of the hydrologic and elastic properties (2016)
  • Author(s): Tsuji, T.
  • Organizer: SEG-AGU Workshop: Upper Crust Physics of Rocks
  • Int'l Joint Research / Invited
• [Presentation] Geophysical framework of the Lord Howe Rise: Characterisation of candidate International Ocean Discovery Program (IODP) deep drilling sites (2016)
  • Author(s): Kodaira, S., Miura, S., Fujie, G., Kaiho, Y., Shirai, T., Yamada, Y., Saito, S., Shiraishi, K., Hackney, R., Bernardel, G. and Nichol, S.
  • Organizer: Australian Earth Science Convention 2016
  • Int'l Joint Research
• [Presentation] Deep stratigraphic drilling for tectonics, climate and ancient life on the Lord Howe Rise continental ribbon (2016)
  • Author(s): Hackney, R., Yamada, Y., Saito, S., Grice, K., Kuroda, J., Whiteside, J., Coolen, M., Inagaki, F., Arculus, R., Muller, R.D. and LHR IODP Science Team
  • Organizer: Australian Earth Science Convention 2016
  • Int'l Joint Research
• [Presentation] Detailed process of thrust initiation at deformation front of the Nankai accretionary prism and its impact to fluid (2016)
  • Author(s): Yamada, Y.
  • Organizer: Deep Carbon Observatory Origins and Visualization Workshop
  • Int'l Joint Research / Invited
• [Presentation] Borehole informatics: data integration challenges of scientific drilling (2016)
  • Author(s): Yamada, Y. and Moe, K. T.
  • Organizer: AAPG 2016 Annual Convention and Exhibition
  • Int'l Joint Research
• [Presentation] 早期新生代太平洋におけるプレート運動大編成と大陸縁辺付加体に残された記録 (2016)
  • Author(s): 木村 学・橋本善孝・山口飛鳥
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 大時空間スケールから見た地震発生沈み込み帯のテクトニックな枠組み－南海トラフの例－ (2016)
  • Author(s): 木村 学
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] コスタリカ沖前弧ウェッジの固結を支配する隆起過程と沸石沈殿 (2016)
  • Author(s): 浜橋真理・Screaton, E.・谷川 亘・橋本善孝・Martin, K.・斎藤実篤・木村 学
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 九州四万十帯延岡衝上断層における断層帯中軸部の変化に富んだ化学組成 (2016)
  • Author(s): 福地里菜・山口飛鳥・亀田 純・木村 学, 芦 寿一郎
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 鉱物脈の姿勢情報を用いた沈み込み帯地震発生域での応力および岩石強度推定：延岡衝上断層周辺付加体での例 (2016)
  • Author(s): 大坪 誠・宮川歩夢・北島弘子・佐藤活志・山口飛鳥・木村 学
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Improvement of 3D MCS data processing by advanced technology in Nankai trough (2016)
  • Author(s): Shiraishi, K., Kinoshita, M., Moore, G., Sanada, Y., Yamada, Y. and Kimura, G.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Frictional properties of the Nankai Trough accretionary mud samples collected from 1000-3000 mbsf at IODP Site C0002 (2016)
  • Author(s): Hoshino, K., Abe, K., Sawai, M. and Kanagawa, K.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Frictional properties of the Northern Shimanto Belt rocks at a seismogenic pressure and temperature condition (2016)
  • Author(s): Abe, K., Hoshino, K., Sawai, M. and Kanagawa, K.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 海底熱水循環系の時空間スケールに対する考察：沖縄トラフ熱水域の孔内・海底熱流量からの推定 (2016)
  • Author(s): 木下正高・正木裕香・濱田洋平・谷川 亘・熊谷英憲・野崎達生
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 南海トラフ泥火山の熱・物質輸送から地震発生帯の状態を推定する試み (2016)
  • Author(s): 木下正高・後藤秀作
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research / Invited
• [Presentation] 南海トラフ地震発生帯掘削に関わる地震探査データの統合解析 (2016)
  • Author(s): 白石和也・木下正高・真田佳典・Moe, K.・山田泰広
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 近接設置した海底局からの音波の走時差を用いた局所地殻変動計測－日本海溝断層地形の挙動のモニタリング－ (2016)
  • Author(s): 木戸元之, 芦 寿一郎, 辻 健, 富田史章
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Spatial and temporal variation of stress state in east Japan during the 2011 Tohoku-oki earthquake: Insights from S-wave splitting analysis from ambient noise records (2016)
  • Author(s): Ikeda, T. and Tsuji, T.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Characterization of Nankai seismogenic fault by applying dynamic wave propagation simulation to digital rock models (2016)
  • Author(s): Eng, C., Ikeda, T. and Tsuji, T.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 干渉SAR解析と現地調査による2016年熊本地震で活動した断層と火山岩体との関係 (2016)
  • Author(s): 辻 健・石塚師也・池田達紀・松岡俊文
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Lord Howe Rise Drilling: Deep stratigraphic record for the Cretaceous eastern Gondwana margin (2016)
  • Author(s): Saito, S., Hackney, R., Yamada, Y., Grice, K., Kuroda, J., Whiteside, J., Coolen, M., Inagaki, F., Arculus, R. and Muller, D.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research / Invited
• [Presentation] ロードハウライズ掘削計画の概要 (2016)
  • Author(s): Hackney, R.・山田泰広・Grice, K.・黒田潤一郎・Whiteside, J., Coolen, M.・稲垣史生・Arculus, R.・Muller, D.・斎藤実篤・西 弘嗣
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 台湾南西沖海洋科学掘削計画の概要 (2016)
  • Author(s): 山田泰広・林 殿順・劉 家
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 掘削情報科学 (2016)
  • Author(s): 山田泰広・Moe, K.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] 大規模超高精度砂箱実験－フロンタルスラスト形成に先立つ予兆現象の精密測定－ (2016)
  • Author(s): 桑野 修・堀 高峰・阪口 秀・西浦泰介・古市幹人・山本美希・山田泰広
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Stress changes and the displacement of an out-of-sequence thrust in an accretionary wedge (2016)
  • Author(s): Miyakawa, A. Yamada, Y. and Otsubo, M.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Numerical simulations of three-phase relative permeability in Berea sandstone using lattice Boltzmann method (2016)
  • Author(s): Jiang, F. and Tsuji, T.
  • Organizer: 日本地球惑星科学連合2016年大会
  • Int'l Joint Research
• [Presentation] Immiscible fluid displacement patterns under various reservoir conditions and their influence on geophysical properties (2016)
  • Author(s): Tsuji, T., Jiang, F., Ikeda, T. and Christensen, K.
  • Organizer: 8th International Conference on Porous Media & Annual Meeting
  • Int'l Joint Research
• [Presentation] InSAR時系列解析における推定精度を考慮したピクセル毎の基線長閾値の選定法 (2016)
  • Author(s): 石塚師也・辻 健・松岡俊文
  • Organizer: 日本リモートセンシング学会第60回学術講演会
• [Presentation] Imaging hydraulic fractures at Median Tectonic Line, Japan using multiply generated and scattered tube waves in a shallow VSP experiment (2016)
  • Author(s): Minato, S., Ghose, R., Tsuji, T., Ikeda, M. and Onishi, K.
  • Organizer: EGU General Assembly 2016
  • Int'l Joint Research
• [Presentation] Initiation process of a thrust fault revealed by analog experiments (2016)
  • Author(s): Yamada, Y., Dotare, T., Adam, J., Hori, T. and Sakaguchi, H.
  • Organizer: EGU General Assembly 2016
  • Int'l Joint Research
• [Remarks] 超深度掘削・観測による南海トラフ巨大地震切迫度評価
  • URL: http://www-solid.eps.s.u-tokyo.ac.jp/~gaku/nurge_index.html