Slow slip to the trench ?

• Project/Area Number: 26257206
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 海外学術
• Research Field: Solid earth and planetary physics
• Research Institution: Kyoto University
• Principal Investigator: Ito Yoshihiro 京都大学, 防災研究所, 准教授 (30435581)
• Co-Investigator(Kenkyū-buntansha): 木戸 元之 東北大学, 災害科学国際研究所, 教授 (10400235) ; 芝崎 文一郎 国立研究開発法人建築研究所, 国際地震工学センター, 上席研究員 (20344012) ; 日野 亮太 東北大学, 学内共同利用施設等, 教授 (00241521)
• Research Collaborator: HINO Ryota ; OBARA Kazushige ; SHINOHARA Masanao ; MOCHIZUKI Kimihiro
• Project Period (FY): 2014-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥40,560,000 (Direct Cost: ¥31,200,000、Indirect Cost: ¥9,360,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2017: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000); Fiscal Year 2016: ¥8,060,000 (Direct Cost: ¥6,200,000、Indirect Cost: ¥1,860,000); Fiscal Year 2015: ¥7,800,000 (Direct Cost: ¥6,000,000、Indirect Cost: ¥1,800,000); Fiscal Year 2014: ¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
• Keywords: スロースリップ / 海底圧力観測 / ヒクランギ沈み込み帯 / 巨大地震 / ニュージーランド / 国際研究者交流 / 室内実験 / 路頭調査 / 固体地球物理学 / 地震 / 自然現象観測・予測 / 自然災害 / 露頭調査 / すべり弱化

Outline of Final Research Achievements

We investigated slow slip events in the Hikurangi Margin, New Zealand with ocean bottom pressure observations and numerical modeling based on the observation data. Our results from the pressure data indicated that the slip area of the slow slip event in 2014 reached the trench in the 2014 slow slip event. Our numerical model simulated the dynamic effect on triggering the slow slip event after the 2016 Kaikoura earthquake captured features of the actual slow slip event observed after the mainshock.

Academic Significance and Societal Importance of the Research Achievements

沈み込み帯浅部の「スロースリップ」が海底近傍の極浅部まで到達していることを観測から示した。2011年東北地方太平洋沖地震時には、地震時すべりが海底まで到達していたことが知られており、結果として海底付近に到達した地震時すべりが巨大津波の一因となった。沈み込み帯浅部のすべり様式の多様性を示した本研究の事例は、沿岸部の地震および津波防災の検討を進める上で有用な新たな知見となった。周囲で発生する巨大地震の地震動による応力擾乱によりスロースリップが誘発されることを数値モデルから示した。これは巨大地震とスロースリップの相互作用を数理的に示した重要な成果となった。

Research Products

• [Int'l Joint Research] GNS Science/NIWA(ニュージーランド)
• [Int'l Joint Research] コロンビア大学/コロラド大学デンバー校/カリフォルニア大学サンタクルーズ校(米国)
• [Int'l Joint Research] GNS Science/NIWA(ニュージーランド)
• [Int'l Joint Research] ブレーメン大学(ドイツ)
• [Int'l Joint Research] カーディフ大学(英国)
• [Int'l Joint Research] コロンビア大学(米国)
• [Int'l Joint Research] GNS Science/NIWA(ニュージーランド)
• [Int'l Joint Research] カーディフ大学(英国)
• [Int'l Joint Research] ブレーメン大学(ドイツ)
• [Int'l Joint Research] University of Texas at Austin/Lamont Doherty Earth Observatory/Oregon State University(米国)
• [Int'l Joint Research] GNS Science(ニュージーランド)
• [Int'l Joint Research] University of Bremen(ドイツ)
• [Journal Article] Seafloor crustal deformation on ocean bottom pressure records with non-tidal variability corrections: application to Hikurangi margin, New Zealand (2019)
  • Author(s): Muramoto, T., Y. Ito, D. Inazu, L. M. Wallace, R. Hino, S. Suzuki, S. C.Webb, S. Henrys
  • Journal Title: Geophys. Res. Lett. Volume: 46 Issue: 1 Pages: 303-310
  • DOI: 10.1029/2018gl080830
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Tremor and Inferred Slow Slip Associated With Afterslip of the 2011 Tohoku Earthquake (2019)
  • Author(s): Ohta, K., Y. Ito, R. Hino, S. Ohyanagi, T. Matsuzawa, H. Shiobara, M. Shinohara
  • Journal Title: Geophys. Res. Lett. Volume: 46 Issue: 9 Pages: 4591-4598
  • DOI: 10.1029/2019gl082468
  • Peer Reviewed
• [Journal Article] Spatio-temporal changes in the seismic velocity induced by the 2011 Tohoku-Oki earthquake and slow slip event revealed from seismic interferometry, using ocean bottom seismometer’s records (2018)
  • Author(s): Uemura Miyuu、Ito Yoshihiro、Ohta Kazuaki、Hino Ryota、Shinohara Masanao
  • Journal Title: Progress in Earth and Planetary Science Volume: 5 Issue: 1 Pages: 1-16
  • DOI: 10.1186/s40645-018-0240-3
  • Peer Reviewed / Open Access
• [Journal Article] Spatiotemporal Variation of Tectonic Tremor Activity Before the Tohoku-Oki Earthquake (2018)
  • Author(s): Katakami Satoshi、Ito Yoshihiro、Ohta Kazuaki、Hino Ryota、Suzuki Syuichi、Shinohara Masanao
  • Journal Title: Journal of Geophysical Research: Solid Earth Volume: 123 Issue: 11 Pages: 9676-9688
  • DOI: 10.1029/2018jb016651
  • Peer Reviewed / Open Access
• [Journal Article] Using Tsunami Waves Reflected at the Coast to Improve Offshore Earthquake Source Parameters: Application to the 2016 Mw 7.1 Te Araroa Earthquake, New Zealand (2018)
  • Author(s): Kubota, T, T. Saito, Y. Ito, Y. Kaneko, L. M. Wallace, S. Suzuki, R. Hino, S. Henrys
  • Journal Title: J. Geophys. Res. Volume: 123 Issue: 10 Pages: 8767-8779
  • DOI: 10.1029/2018jb015832
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Earthquakes and Tremor Linked to Seamount Subduction During Shallow Slow Slip at the Hikurangi Margin, New Zealand (2018)
  • Author(s): Todd Erin K.、Schwartz Susan Y.、Mochizuki Kimihiro、Wallace Laura M.、Sheehan Anne F.、Webb Spahr C.、Williams Charles A.、Nakai Jenny、Yarce Jefferson、Fry Bill、Henrys Stuart、Ito Yoshihiro
  • Journal Title: Journal of Geophysical Research: Solid Earth Volume: 123 Issue: 8 Pages: 6769-6783
  • DOI: 10.1029/2018jb016136
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 講座「南海トラフ巨大地震・津波発生の真実にせまる～強靭な社会の構築に向けて～」５．南海トラフのスロー地震と断層活動 (2018)
  • Author(s): 伊藤喜宏
  • Journal Title: 地盤工学会誌 Volume: 66 Pages: 54-60
  • Peer Reviewed
• [Journal Article] Tidal Response in Shallow Tectonic Tremors (2017)
  • Author(s): Katakami S.、Yamashita Y.、Yakihara H.、Shimizu H.、Ito Y.、Ohta K.
  • Journal Title: Geophysical Research Letters Volume: 44 Issue: 19 Pages: 9699-9706
  • DOI: 10.1002/2017gl074060
  • Peer Reviewed / Open Access
• [Journal Article] Coseismic slip propagation on the Tohoku plate boundary fault facilitated by slip-dependent weakening during slow fault slip (2017)
  • Author(s): Ito, Y., M. J. Ikari, K. Ujiie, and A. J. Kopf
  • Journal Title: Geophys. Res. Lett. Volume: 44 Issue: 17 Pages: 8749-8756
  • DOI: 10.1002/2017gl074307
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Slow slip near the trench at the Hikurangi subduction zone, New Zealand (2016)
  • Author(s): Wallace, L., S. Webb, Y. Ito, K. Mochizuki, R. Hino, S. Henrys, S. Schwartz, and A. Sheehan
  • Journal Title: Science Volume: 352 Issue: 6286 Pages: 701-704
  • DOI: 10.1126/science.aaf2349
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Investigations of shallow slow slip offshore of New Zealand (2016)
  • Author(s): Harris, R., L. Wallace, S. Webb, Y. Ito, K. Mochizuki, H. Ichihara, S. Henrys, A. Tréhu, S. Schwartz, A. Sheehan, D. Saffer, and R. Lauer
  • Journal Title: Eos Volume: 97 Pages: 0000-0000
  • DOI: 10.1029/2016eo048945
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Episodic tremor and slip near the Japan Trench prior to the 2011 Tohoku-Oki earthquake (2015)
  • Author(s): Ito, Y., R. Hino, S. Suzuki, and Y. Kaneda
  • Journal Title: Geophysical Research Letters Volume: 42 Issue: 6 Pages: 1725-1731
  • DOI: 10.1002/2014gl062986
  • NAID: 120005663306
  • Description: 印刷中
  • Peer Reviewed
• [Journal Article] Very low frequency earthquakes (VLFEs) in Cascadia migrate with tremor (2015)
  • Author(s): Ghosh, A., E. Uesca-Pérez, E. Brodsky, and Y. Ito
  • Journal Title: Geophys. Res. Lett. Volume: 42 Issue: 9 Pages: 3228-3232
  • DOI: 10.1002/2015gl063286
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Spectrum of slip behaviour in Tohoku fault zone samples at plate tectonic slip rates (2015)
  • Author(s): kari, M. J., Y. Ito, K. Ujiie, and A. J. Kopf
  • Journal Title: Nature Geoscience Volume: 8 Issue: 11 Pages: 870-874
  • DOI: 10.1038/ngeo2547
  • NAID: 120007130023
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Velocity- and slip-dependent weakening in simulated fault gouge: Implications for multi-mode fault slip (2015)
  • Author(s): Ito, Y., and M. J. Ikari
  • Journal Title: Geophys. Res. Lett. Volume: 42 Issue: 21 Pages: 9247-9254
  • DOI: 10.1002/2015gl065829
  • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
• [Journal Article] Possible shallow slow slip events in Hyuga-nada, Nankai subduction zone, inferred from migration of very low frequency earthquakes (2015)
  • Author(s): Youichi Asano, Kazushige Obara, Takanori Matsuzawa, Hitoshi Hirose, and Yoshihiro Ito
  • Journal Title: Geophys. Res. Lett. Volume: 42 Issue: 2 Pages: 331-338
  • DOI: 10.1002/2014gl062165
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Changes in seismicity before and after the 2011 Tohoku earthquake around its southern limit revealed by dense ocean bottom seismic array data (2015)
  • Author(s): Nakatani, Y.K. Mochizuki, M. Shinohara, T. Yamada, R. Hino, T. Ito, T. Murai, and T. Sato
  • Journal Title: Geophysical Research Letters Volume: 42 Issue: 5 Pages: 1348-1389
  • DOI: 10.1002/2015gl063140
  • Peer Reviewed / Open Access
• [Journal Article] Structural control on the Tohoku earthquake rupture process investigated by 3D FEM, tsunami and geodetic data (2014)
  • Author(s): Romano, F., E. Trasatti, S. Lorito, C. Piromallo, A. Piatanesi, Y. Ito, D. Zhao, K. Hirata, P. Lanucara, M. Cocco
  • Journal Title: Scientific Reports Volume: 4 Issue: 1 Pages: 5631-5631
  • DOI: 10.1038/srep05631
  • Peer Reviewed / Open Access
• [Journal Article] ニュージーランド・スロースリップ域掘削計画－スロースリップのなぞを解く！－ (2014)
  • Author(s): 伊藤喜宏、望月公廣、Laura Wallace
  • Journal Title: 月刊地球 Volume: 65 Pages: 282-286
• [Presentation] Analysis of Ocean Bottom Pressure in Hikurangi subduction zone (2018)
  • Author(s): Inoue,T., T. Muramoto, D. Inazu, Y. Ito, R. Hino, K. Ohta, and S. Suzuki
  • Organizer: International Joint Workshop on Slow Earthquakes 2018
  • Int'l Joint Research
• [Presentation] ヒクランギ沈み込み帯における海底圧力計の解析 (2018)
  • Author(s): 井上智裕・村本智也・稲津大祐・伊藤喜宏・日野亮太・太田和晃・鈴木秀市
  • Organizer: 日本地震学会 地震学夏の学校
• [Presentation] ヒクランギ沈み込み帯における海底圧力計の解析 (2018)
  • Author(s): 井上智裕・村本智也・稲津大祐・伊藤喜宏・日野亮太・太田和晃・鈴木秀市
  • Organizer: 日本地震学会2018年度秋季大会
• [Presentation] Ground motion and its ocean bottom amplification in subduction zones (2018)
  • Author(s): Ito, Y., , S. Webb, Y. Kaneko, L. Wallace, R. Hino
  • Organizer: 2018 AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] Detection of seafloor crustal deformation from ocean bottom pressure data using amplitude correction of non-tidal components (2018)
  • Author(s): Inoue, T., T. Muramoto, D. Inazu, Y. Ito, R. Hino, K. Ohta, S. Suzuki
  • Organizer: 2018 AGU Fall Meeting
  • Int'l Joint Research
• [Presentation] クランギ沈み込み帯における海底圧力計の解析 (2018)
  • Author(s): 井上智裕・村本智也・稲津大祐・伊藤喜宏・日野亮太・太田和晃・鈴木秀市
  • Organizer: 平成30年度京都大学防災研究所研究発表講演会
• [Presentation] Modeling slow-slip events and their triggering by the Kaikoura earthquake along the Hikurangi subduction plate interface (2018)
  • Author(s): 芝崎文一郎・Wallace Laura・Kaneko Yoshihiro・Hamling Ian・伊藤喜宏・松澤孝紀
  • Organizer: 日本地球惑星科学連合2018年大会
• [Presentation] 海底圧力計を用いた地殻変動の評価はどこまで可能か？ーヒクランギ沈み込み帯の場合ー (2018)
  • Author(s): 村本智也, 伊藤喜宏, 稲津大祐, 日野亮太, 鈴木秀市, 山下裕亮
  • Organizer: 平成29年度京都大学防災研究所研究発表講演会
• [Presentation] Ocen bottom pressure sensors and shallow slow slip (2018)
  • Author(s): Ito., Y.
  • Organizer: New Zealand-Japan Joint Workshop on Slow Slip
  • Int'l Joint Research
• [Presentation] Modeling slow-slip events and their triggering by the Kaikoura earthquake along the Hikurangi subduction plate interface (2018)
  • Author(s): Shibazaki, B., L. Wallace, I. Hamling, Y. Kaneko, Y. Ito, T. Matsuzawa
  • Organizer: New Zealand-Japan Joint workshop on Slow Slip
  • Int'l Joint Research
• [Presentation] Evaluation of seafloor crustal deformation using ocean bottom pressure with non-tidal variability corrections on local array measurements: Application to the Hikurangi margin (2018)
  • Author(s): Tomoya, M., Y. Ito, D. Inazu, R. Hino, S. Suzuki, Y. Yamashita, L. M. Wallace
  • Organizer: New Zealand-Japan Joint Workshop on Slow Slip
  • Int'l Joint Research
• [Presentation] Interaction between slow and fast slips in the Japan Trench: Prospect from near field ocean bottom seismic and geodetic observations (2017)
  • Author(s): Ito, Y., S. Katakami, K. Ohta, M. Uemura, T. Muramoto, E. S. M. Garcia
  • Organizer: the 2017 Seismological Society of America Annual Meeting
  • Int'l Joint Research / Invited
• [Presentation] Slip-dependent weakening on shallow plate boundary fault in the Japan subduction zone: shallow coseismic slip facilitated by foreshock afterslip (2017)
  • Author(s): Ito, Y., M. Ikari, K. Ujiie, A. Kopf
  • Organizer: European Geosciences Union General Assembly 2017
  • Int'l Joint Research
• [Presentation] 地震学的観測および地質学的観察に基づいた西南日本における微動発生領域の厚さ (2017)
  • Author(s): 太田和晃，伊藤喜宏，氏家恒太郎，Fagereng Ake，片上智史，木下貴裕
  • Organizer: 日本地球惑星科学連合大会
  • Invited
• [Presentation] On the interpretation of oceanic variations in terms of ocean bottom pressure (2017)
  • Author(s): Tomoya, M., Y. Ito, D. Inazu, R. Hino, S. Suzuki
  • Organizer: Japan Geoscience Union-America Geophysica Union Joint Meeting 2017
  • Int'l Joint Research
• [Presentation] Public partnership between Japan and Mexico on disaster mitigation of large earthquake and tsunami hazards: the SATREPS project (2017)
  • Author(s): Ito, Y.
  • Organizer: Global Platform 2017
  • Int'l Joint Research
• [Presentation] Prospect from near field ocean bottom seismic and geodetic observations (2017)
  • Author(s): Ito, Y.
  • Organizer: SATREPS workshop on Hazard Assesment of Large Earthquakes and Tsunamis in the Mexican Pacific Coast for Disaster Mitigation
  • Int'l Joint Research
• [Presentation] Modeling slow-slip events and their triggering by the Kaikoura earthquakealong the Hikurangi subduction plate interface (2017)
  • Author(s): Shibazaki, B., L. Wallace, I. Hamling, Y. Kaneko, T. Matsuzawa, Y. Ito
  • Organizer: Joint Workshop on Slow Earthquakes 2017 Matsuyama, Japan
  • Int'l Joint Research
• [Presentation] On the interpretation of oceanic variations in terms of ocean bottom pressure (2017)
  • Author(s): Tomoya, M., Y. Ito, D. Inazu, R. Hino, S. Suzuki
  • Organizer: IAG-IASPEI2017
  • Int'l Joint Research
• [Presentation] ヒクランギ沈み込み帯におけるスロースリップイベントとカイコウラ地震によるトリガリングのモデル化 (2017)
  • Author(s): 芝崎文一郎, Laura Wallace, Ian Hamling, Yoshihiro Kaneko, 松澤孝紀, 伊藤喜宏
  • Organizer: 日本地震学会2017年秋季大会
• [Presentation] 海洋モデル計算を用いた海底地殻変動の評価およびヒクランギ沈み込み帯への適用 (2017)
  • Author(s): 村本智也, 伊藤喜宏, 稲津大祐, 日野亮太, 鈴木秀市,Stuart Henrys, Stephen Bannister, Laura Wallace
  • Organizer: 日本地震学会2017年秋季大会
• [Presentation] Seismic waves triggering slow slip event on the pressure gauge records in the Hikurangi subducting margin (2017)
  • Author(s): Ito, Y., Y. Kaneko, L. Wallace, S. Henrys, S. Webb, T. Muramoto, K. Ohta, K. Mochizuki, S. Suzuki, M. Kido, R. Hino
  • Organizer: American Geophysical Union Fall meeting 2017
  • Int'l Joint Research
• [Presentation] Dynamic relationship between ocean bottom pressure and bathymetry around northern part of Hikurangi (2017)
  • Author(s): Tomoya, M., Y. Ito, D. Inazu, R. Hino, S. Suzuki
  • Organizer: American Geophysical Union Fall meeting 2017
  • Int'l Joint Research
• [Presentation] Velocity- and slip-dependent weakening on the Tohoku plate boundary fault: shallow coseismic slip facilitated by foreshock afterslip (2016)
  • Author(s): Ito, Y., M. Ikari, K. Ujiie, A. Kopf
  • Organizer: AGU 2016 Fall meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Detection of Shallow Slow Slip events on the Northern Hikurangi Margin using Ocean Bottom Pressure Recorders (2016)
  • Author(s): Muramoto, T., Y. Ito, D. Inazu, S. Henrys, L. Wallace, S. Bannister, K. Mochizuki, R. Hino, S. Suzuki
  • Organizer: AGU 2016 Fall meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Constraining the thickness of tremor source region on the basis of seismological and geological observations in southwest Japan (2016)
  • Author(s): Ohta K., Y. Ito, K. Ujiie, A. Fagereng, S. Katakami and T. Kinoshita
  • Organizer: AGU 2016 Fall meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2016-12-12
  • Int'l Joint Research
• [Presentation] Estimation of Small Slow Slip events on the Northern Hikurangi Margin (2016)
  • Author(s): 村本智也・伊藤喜宏・稲津大祐・日野亮太・鈴木秀市・Stuart Henrys・Stephen Bannister・Laura Wallace
  • Organizer: 日本地震学会講演予稿集2016年度秋季大会
  • Place of Presentation: 名古屋市、日本
  • Year and Date: 2016-10-05
• [Presentation] How to use slow earthquakes: Monitering and exploiting slow earthquakes to megathrust event (2016)
  • Author(s): Ito, Y.
  • Organizer: RAUGM 2016
  • Place of Presentation: Puerto Vallarta, Mexico
  • Year and Date: 2016-10-02
  • Int'l Joint Research
• [Presentation] Two effects of slow earthquakes on large megathrust earthquakes: Triggering and facilitating of coseismic slip (2016)
  • Author(s): Ito, Y., M. Ikari
  • Organizer: JpGU meeting 2016
  • Place of Presentation: Makuhari, Japan
  • Year and Date: 2016-05-22
  • Int'l Joint Research
• [Presentation] Modeling long- and short-term slow-slip events and their interaction with large earthquakes along the Hikurangi subduction zone (2016)
  • Author(s): Shibazaki, B., L. Wallace, Y. Ito, T. Matsuzawa
  • Organizer: JpGU meeting 2016
  • Place of Presentation: Makuhari, Japan
  • Year and Date: 2016-05-22
  • Int'l Joint Research
• [Presentation] Two effects of slow earthquake to megathrust events: Triggering and facilitating of megathrust slip (2016)
  • Author(s): Ito, Y., and M. Ikari
  • Organizer: AGU Chapman Conference on the Slow Slip Phenomena
  • Place of Presentation: Ixtapa, Guerrero, Mexico
  • Year and Date: 2016-02-21
  • Int'l Joint Research
• [Presentation] Modeling slow slip events and their interaction with large earthquakes along Hikurangi and Mexican subduction zones (2016)
  • Author(s): Shibazaki, B., Matsuzawa, T.
  • Organizer: AGU Chapman Conference on the Slow Slip Phenomena
  • Place of Presentation: Ixtapa, Guerrero, Mexico
  • Year and Date: 2016-02-21
  • Int'l Joint Research
• [Presentation] Pre-Earthquake Early Warning: Monitoring Transient Acceleration of Subducting Plates (2016)
  • Author(s): Ito, Y.
  • Organizer: 2016 AAAS Annual Meeting
  • Place of Presentation: Washington D.C.
  • Year and Date: 2016-02-11
  • Int'l Joint Research
• [Presentation] Velocity- and slip-dependent weakening in simulated fault gauge: Implications for coexistence of slow slip with fast slip (2015)
  • Author(s): Ito, Y., and M. Ikari
  • Organizer: 2015 AGU Fall Meetin
  • Place of Presentation: San Francisco
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] Modeling long- and short-term slow slip events and their interaction with large earthquakes along the Hikurangi subduction zone (2015)
  • Author(s): Shibazaki, B., Matsuzawa, T., Wallace, L., Ito, Y.
  • Organizer: 2015 AGU Fall Meetin
  • Place of Presentation: San Francisco
  • Year and Date: 2015-12-14
  • Int'l Joint Research
• [Presentation] New Collaboration with Japan on disaster mitigation of large earthquake and tsunami hazards in the Guerrero Gap: SATREPS (2015)
  • Author(s): Ito, Y., and V. M. Cruz-Atienza
  • Organizer: h Japan on disaster mitigation of large earthquake and tsunami hazards in the Guerrero Gap: SATREPS,
  • Place of Presentation: Pueruto Vallaruta, Mexico
  • Year and Date: 2015-11-02
  • Int'l Joint Research
• [Presentation] Small low-frequency tremor coincident with slow slip events near the Japan Trench (2015)
  • Author(s): Ito, Y., R. Hino, S. Suzuki, Y. Kaneda
  • Organizer: JpGU meeting 2015
  • Place of Presentation: Makuhari, Chiba
  • Year and Date: 2015-05-24
• [Presentation] ヒクランギ沈み込み帯における多様なスロースリップイベントのモデル化 (2015)
  • Author(s): 芝崎文一郎、松澤孝紀
  • Organizer: 日本地球惑星科学連合2015年大会
  • Place of Presentation: 幕張メッセ（千葉）
  • Year and Date: 2015-05-24
• [Presentation] Very-low-frequency earthquakes in Japan: Its implications on the earthquake physics and seismic hazard (2015)
  • Author(s): Ito, Y.
  • Organizer: SSA 2015 annual meeting
  • Place of Presentation: Pasadena, CA, USA
  • Year and Date: 2015-04-21
  • Int'l Joint Research / Invited
• [Presentation] Transient crustal deformation doe to slow slip observed on ocean bottom pressure recorders in the Hikurangi margin (2014)
  • Author(s): Ito, Y., L. Wallace, S. Henrys, K. Mochizuki, C. Williams, R. Hino, H. Ichihara, D. Inazu, S. Suzuki, T. Yagi, T. Kubota, D. Haijima, B. Fry, and S. Bannister
  • Organizer: AGU 2014 Fall meeting
  • Place of Presentation: San Francisco, USA
  • Year and Date: 2014-12-15 – 2014-12-19
• [Presentation] Transient crustal deformation due to slow slip observed on ocean bottom pressure recorders in the Hikurangi margin (2014)
  • Author(s): Ito, Y., L. Wallace, S. Henrys, K. Mochizuki, C. Williams, R. Hino, H. Ichihara, D. Inazu, S. Suzuki, T. Yagi, T. Kubota, D. Haijima, B. Fry, and S. Bannister
  • Organizer: 日本地震学会2014年度秋季大会
  • Place of Presentation: 新潟市
  • Year and Date: 2014-11-24 – 2014-11-26
• [Presentation] An ocean-bottom geodetic and seismic network for assessing the megaearthquake and tsunami hazard ptentials along the Mexican subdcution zone (2014)
  • Author(s): Ito, Y., and V. M. Cruz-Atienza
  • Organizer: Reunion Anual 2014, UGM
  • Place of Presentation: Puerto Vallarta, Valisco, Mexico
  • Year and Date: 2014-11-02 – 2014-11-07
  • Invited
• [Presentation] ニュージーランド・スロースリップ掘削計画 (2014)
  • Author(s): 伊藤喜宏・小平秀一・望月公廣・Laura Wallace・Demian Saffer・Stuart Henrys・Phil Barnes・Mike Underwood・Nathan Bangs
  • Organizer: 日本地質学会第121年学術大会
  • Place of Presentation: 鹿児島市
  • Year and Date: 2014-09-13 – 2014-09-15
• [Presentation] Episodic tremor and slip occurred near the Japan trench prior to the 2011 Tohoku-oki earthquake (2014)
  • Author(s): Ito, Y., R. Hino, S. Suzuki, S. Miura, and Y. Kaneda
  • Organizer: AOGS2014
  • Place of Presentation: Sapporo, Japan
  • Year and Date: 2014-07-28 – 2014-08-01
• [Remarks] 京都大学防災研究所 伊藤喜宏 プロジェクト紹介ページ
  • URL: http://www1.rcep.dpri.kyoto-u.ac.jp/~yito/NewSite_J/projects.html
• [Remarks] 伊藤喜宏のサイトー研究プロジェクトー
  • URL: http://www1.rcep.dpri.kyoto-u.ac.jp/~yito/NewSite_J/site/Projects.html
• [Remarks] 国際共同研究紹介のページ（日本側作成）
  • URL: http://www1.rcep.dpri.kyoto-u.ac.jp/~yito/NewSite_E/site_e/Projects.html
• [Remarks] 国際共同研究紹介のページ（アメリカ側作成）
  • URL: http://ciresblogs.colorado.edu/hobitss/2014/05/16/what-is-slow-slip/
• [Remarks] 関連研究集会
  • URL: http://www1.rcep.dpri.kyoto-u.ac.jp/~yito/NewSite_E/site_e/Workshop.html
• [Funded Workshop] Mini workshop on ocean bottom seismology and geodesy -current achievements and future goals- (2018)
• [Funded Workshop] Hazard Assesment of Large Earthquakes and Tsunamis in the Mexican Pacific Coast for Disaster Mitigation (2017)
• [Funded Workshop] AGU Chapman Conference on the Slow Slip Phenomena (2016)
  • Place of Presentation: Ixtapa, Guerrero, Mexico
  • Year and Date: 2016-02-21
• [Funded Workshop] Interpreting the Geometry, Rheology, and Deformation Mechanisms of the Slow Earthquake Source (2016)
  • Place of Presentation: San Francisco
• [Funded Workshop] Joint Workshop on Slow earthquakes, 2015 (2015)
  • Place of Presentation: Enviromental Studies Hall, Graduate School of Enviromental Studies, Higashiyama campus, Nagoya University, Nagoya
  • Year and Date: 2015-09-24