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Numerical modeling of slow slip events considering the configuration of subducting plate

Research Project

Project/Area Number 26800240
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Solid earth and planetary physics
Research InstitutionNational Research Institute for Earth Science and Disaster Prevention

Principal Investigator

Matsuzawa Takanori  国立研究開発法人防災科学技術研究所, 地震・津波防災研究部門, 主任研究員 (90500744)

Research Collaborator SHIBAZAKI Bunichiro  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
LIU Yajing  McGill University, Department of Earth and Planetary Sciences, Assistant Professor
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsスロースリップイベント / 数値シミュレーション / 沈み込み帯 / スロー地震 / 沈み込み形状 / プレート間地震 / 南海トラフ / Cascadia / 地震発生サイクル / 深部低周波微動
Outline of Final Research Achievements

We numerically modeled slow slip events considering actual configuration of subducting plate and distribution of slow earthquakes. Target regions in this study are Nankai trough in Japan and Cascadia in North America. Our model reproduced characteristic recurrence and segmentation of slow slip events. Long-term SSEs are also reproduced as observed in Japan. In addition, our model predicts that long-term SSEs occur at later stage in a seismic cycle in both of the Kii region and the Cascadia region, where they have not been reported yet. We also examined the effect of earth tides on slow slip events by numerical simulation.

Report

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

    (14 results)

All 2017 2016 2015 2014

All Presentation (14 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results)

  • [Presentation] Numerical modeling of tidal modulation of slow slip events in the Shikoku region2017

    • Author(s)
      Takanori Matsuzawa, Yoshiyuki Tanaka, Bunichiro Shibazaki
    • Organizer
      JpGU-AGU 2017 Joint Meeting
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2017-05-24
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Numerical modeling of short-term slow slip evetns in the Shikoku region considering the effect of earth tides and plate configuration2016

    • Author(s)
      Takanori Matsuzawa, Yoshiyuki Tanaka, Bunichiro Shibazaki
    • Organizer
      American Geophysical Union 2016 Fall Meeting
    • Place of Presentation
      サンフランシスコ市(アメリカ合衆国)
    • Year and Date
      2016-12-13
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 潮汐の影響を考慮した四国地域における短期的スロースリップイベントの数値シミュレーション2016

    • Author(s)
      松澤孝紀,田中愛幸,芝崎文一郎
    • Organizer
      日本地震学会2016年秋季大会
    • Place of Presentation
      名古屋国際会議場(愛知県名古屋市)
    • Year and Date
      2016-10-06
    • Related Report
      2016 Annual Research Report
  • [Presentation] 潮汐の影響を考慮したスロースリップイベントの数値シミュレーション2016

    • Author(s)
      松澤孝紀,田中愛幸,芝崎文一郎
    • Organizer
      日本地球惑星科学連合2016年大会
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-25
    • Related Report
      2016 Annual Research Report
  • [Presentation] Modeling long- and short-term slow-slip events and their interaction with large earthquakes along the Hikurangi subduction zone2016

    • Author(s)
      Bunichiro Shibazaki, Laura Wallace, Yoshihiro Ito, Takanori Matsuzawa
    • Organizer
      日本地球惑星科学連合2016年大会
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-22
    • Related Report
      2016 Annual Research Report
  • [Presentation] Interaction between slow earthquakes in and around Bungo channel, Nankai subduction zone2016

    • Author(s)
      Kazushige Obara, Ryota Takagi, Susuke Yamashita, Youichi Asano, Takanori Matsuzawa, Sachiko Tanaka, Hitoshi Hirose, Takuto Maeda
    • Organizer
      日本地球惑星科学連合2016年大会
    • Place of Presentation
      幕張メッセ(千葉県千葉市)
    • Year and Date
      2016-05-22
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Numerical modeling of slow slip events in Nankai and Cascadia, considering plate configulation and tremor distribution2016

    • Author(s)
      Takanori Matsuzawa, Bunichiro Shibazaki, Kazushige Obara, Hitoshi Hirose
    • Organizer
      AGU Chapman Conference on the Slow Slip Phenomena
    • Place of Presentation
      Ixtapa, Mexico
    • Year and Date
      2016-02-24
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Modeling slow slip events and their interaction with large earthquakes along Hikurangi and Mexican subduction zones2016

    • Author(s)
      Bunichiro Shibazaki, Takanori Matsuzawa
    • Organizer
      AGU Chapman Conference on the Slow Slip Phenomena
    • Place of Presentation
      Ixtapa, Mexico
    • Year and Date
      2016-02-24
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Numericalmodeling of ETS in the Cascadia region - An application of Nankai model -2015

    • Author(s)
      Takanori Matsuzawa, Bunichiro Shibazaki
    • Organizer
      American Geophysical Union, 2015 Fall Meeting
    • Place of Presentation
      San Francisco
    • Year and Date
      2015-12-16
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 日本列島周辺におけるスロー地震モニタリングと数値モデリング2015

    • Author(s)
      松澤孝紀,浅野陽一,田中佐千子,木村武志,小原一成,前田拓人,伊藤喜宏,廣瀬仁,芝崎文一郎
    • Organizer
      日本地震学会2015年秋季大会
    • Place of Presentation
      神戸
    • Year and Date
      2015-10-28
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] 沈み込み形状を考慮したスロースリップイベントの数値モデル―南海トラフにおけるモデルのCascadia地域への適用の試み―2015

    • Author(s)
      松澤孝紀,芝崎文一郎
    • Organizer
      日本地球惑星科学連合2015年大会
    • Place of Presentation
      幕張
    • Year and Date
      2015-05-24
    • Related Report
      2015 Research-status Report
  • [Presentation] Numerical modeling of slow slip events in the seismic cycles of megathrust earthquakes in southwestern Japan2014

    • Author(s)
      Takanori Matsuzawa, Bunichiro Shibazaki, Kazushige Obara, Hitoshi Hirose
    • Organizer
      American Geophysical Union, 2014 Fall Meeting
    • Place of Presentation
      サンフランシスコ市(アメリカ合衆国)
    • Year and Date
      2014-12-14
    • Related Report
      2014 Research-status Report
  • [Presentation] Episodic slow slip events in a non-planar subduction fault model for northern Cascadia2014

    • Author(s)
      Duo Li, Yajing Liu, Takanori Matsuzawa, Bunichiro Shibazaki
    • Organizer
      American Geophysical Union, 2014 Fall Meeting
    • Place of Presentation
      サンフランシスコ市(アメリカ合衆国)
    • Year and Date
      2014-12-14
    • Related Report
      2014 Research-status Report
  • [Presentation] 南海トラフの大地震発生サイクル間におけるスロースリップイベントの数値シミュレーション2014

    • Author(s)
      松澤孝紀,芝崎文一郎,小原一成,廣瀬仁
    • Organizer
      日本地震学会2014年度秋季大会
    • Place of Presentation
      朱鷺メッセ(新潟市)
    • Year and Date
      2014-11-25
    • Related Report
      2014 Research-status Report

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

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