静岡大学

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Researcher DataBase - Personal Information : IKUTA RYOYA

IKUTA RYOYA
Associate Professor

[ORCID] 0000-0002-5933-6356 [Scopus Author ID] 6603111737

College of Science - Division of Geosciences

Faculty of Science - Department of Geosciences Graduate School of Integrated Science and Technology　Department of Science - Geosciences Course

Center for Integrated Research and Education of Natural Hazards Graduate School of Science and Technology,Research Division

Last updated : 2026/02/18 2:05:15

Basic information on teaching staff

Nagoya University 　 2004/3

Seismology
Geophysics
Earthquake disaster prevention

Observation of stress-strain state over inter-plate earthquake focal area
Active monitoring of inter-plate coupling using artificial seismic sources
Development of observation technology for ocean floor crustal deformation

GPS, Accurately controlled routinely operated seismic source system, Plate boundary, Earthquakes, Geodesy, Mega-thrust earthquakes

・Seismological Society of Japan
[Note]広報紙編集長は2014年4月から2016年3月。その後は広報委員
・American Geophysical Union
・Japan GeoScience Union

Research information

[1]. Surface wave monitoring using ambient noise for detecting temporal variations in underground structures in landslide area
Engineering Geology 341/ - (2024) [Refereed] non-refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] author
[Author] Chen Feng, Koshun Yamaoka, Ryoya Ikuta, Toshiki Watanabe, Shuhei Tsuji [Notes] 観測データ、解析
[DOI]
[2]. How credible are earthquake predictions that are based on TEC variations?
Journal of Geophysical Research: Space Physics 127/ - e2021JA030151 (2022) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] author
[Author] Ikuta, R., & R. Oba [DOI]
[3]. Strain partitioning in the southern Ryukyu margin revealed by seafloor geodetic and seismological observations.
Geophysical Research Letters / - 2022GL098218 (2022) [Refereed] refereed [Internationally co-authored papers] internationally co-authored paper
[Lead author or co-author] co-author
[Author] Chen, H-Y., Y-J. Hsu, R. Ikuta, H. Tung, C-H. Tang, C-S. Ku, H-H. Su, P-R. Jian, M. Ando, & T. Tsujii [Notes] データ解析
[DOI]
[4]. Temporal change in seismic wave attenuation using highly stable vibration sources
Earth, Planets and Space 74/15 - (2022) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] co-author
[Author] Tsuji, S., Yamaoka, K., Ikuta, R. [Notes] データ取得、手法の開発に関与
[DOI]
[5]. Reanalysis of the ionospheric total electron content anomalies around the 2011 Tohoku-Oki and 2016 Kumamoto earthquakes: Lack of a clear precursor of large earthquakes
Journal of Geophysical Research: Space Physics 127/e2021JA029376 - (2021) [Refereed] refereed [Internationally co-authored papers] non-internationally co-authored paper
[Lead author or co-author] author
[Author] [責任著者]Ikuta Ryoya, [共著者]R. Ohba, D. Kiguchi, T. Hisada [DOI]

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[1]. DORAEMON TANKYU WORLD
Shogakukan （2020）
[Book type]book(educational)
[Sole author, co-author, or author and editor] supervisor
[Author]藤子・F・不二夫、共同監修　村越真・生田領野 [Total page number] 197 [REP page number] 1-93
[2]. Science of Large-scale Natural Disasters in Shizuoka
The Shizuoka Shimbun （2020）
[Book type]book(research)
[Sole author, co-author, or author and editor] contributor
[Author]岩田孝仁・北村晃寿・小山真人・三井雄太・生田領野・狩野謙一ほか13名 [Range] Mega-thrust earthquake beneath Shizuoka Prefecture -perspective from the modern seismology- [Total page number] 255ページ [REP page number] 51-59
[3]. Seismogenic Process Monitoring: Experimental and Mining Seismology
Balkema （2002）
[Book type]book(research)
[Sole author, co-author, or author and editor] single work
[Author]Yamaoka, K., R. Ikuta, K. Miyakawa, T. Kunitomo, M. Kumazawa [Range] A precise method for monitoring the temporal variation of wave propagation [REP page number] 379-397

[1]. joint (with other institution) 稠密GPS観測に基づく東海地方下の歪場と，地殻内の弾性／非弾性物性分布の解明
leader （ 2017/4 ～ 2018/3 )
[Partners] 東京大学地震研究所

[1]. 化石複眼の構造－視覚機能の成熟プロセスの解明：視覚特性の進化多様性（ 2021/4 ～ 2024/3 ） Grant-in-Aid for Scientific Research (C) member
[Notes] 全体額入力

[2]. 琉球海溝南西部の歪場を海底地殻変動観測から解明する（ 2017/4 ～ 2020/3 ） Grant-in-Aid for Scientific Research (C) member

[3]. 1771年八重山大津波域でのプレート固着状態の観測調査（ 2014/4 ～ 2017/3 ） Grant-in-Aid for Scientific Research (B) member

[4]. 東海地震の固着域の時空間分布の推定-遷移域・固着域の相互作用の解明を目指して- （ 2011/4 ～ 2012/3 ） Grant-in-Aid for Young Scientists (B) leader

[5]. 海底における地殻変動のリアルタイム・高精度計測手法の開発（ 2008/10 ～ 2009/3 ） Grant-in-Aid for Young Scientists (Start-up) leader
[Notes] 辞退

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[1]. 沖縄　先島諸島におけるGPS測地観測網の構築　―背弧拡大域における巨大地震発生の謎にせまる― （2015/10 - 2016/9 ) [Offer orgnization] 東京海上各務記念財団 [System name] 地震研究助成 [Role] principal investigator

[1]. Outstanding Reviewer Award 2024 JGR: Space Physics （2025/12)
[Winner] Ryoya Ikuta [Association] American Geophysical Union
[Notes] 雑誌の編集者が選ぶ顕彰
[2]. （2014/4)

[1]. 日本地震学会2011年度秋季大会（2011/10)
[Role at conference, etc.] other [Site of conference, etc.] 静岡市グランシップ
[Notes] LOC.（実行委員長=里村幹夫教授）参加者700名

Education related information

[1]. General Education Course 地震防災（2025(FY) - first semester )
[Notes] 副担当
[2]. General Education Course 地震防災（2025(FY) - second semester )
[Notes] 副担当
[3]. Graduate School Course(Master's) 地球科学特別演習Ⅰ （2025(FY) - first semester )
[Notes] 副担当
[4]. Graduate School Course(Master's) 地球科学特別演習Ⅱ （2025(FY) - second semester )
[Notes] 副担当
[5]. Graduate School Course(Master's) 地球科学特別演習Ⅲ （2025(FY) - first semester )
[Notes] 副担当

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2021(FY)
Number of undergraduate students(junior students) 2
Number of undergraduate students(senior students) 4
Number of master's course students : 5
Number of doctorate course students (main advisor) : 0 Number of doctorate course students (assistant advisor) : 0
2020(FY)
Number of undergraduate students(junior students) 4
Number of undergraduate students(senior students) 4
Number of master's course students : 2
Number of doctorate course students (main advisor) : 0 Number of doctorate course students (assistant advisor) : 0
2018(FY)
Number of undergraduate students(junior students) 4
Number of undergraduate students(senior students) 4
Number of master's course students : 4
Number of doctorate course students (main advisor) : 0 Number of doctorate course students (assistant advisor) : 0
[Notes] 内留学生1名（修士学生）
2017(FY)
Number of master's course students : 0
Number of doctorate course students (main advisor) : 0 Number of doctorate course students (assistant advisor) : 0
[Notes] 留学生（学部研究生）1名
2016(FY)
Number of master's course students : 0
Number of doctorate course students (main advisor) : 0 Number of doctorate course students (assistant advisor) : 0

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Contributions to society

[1]. lecture meeting サイエンスカフェ静岡　講師（2025/1 )
[Details] 「海底に地震の巣を探す」
[Notes] B-nest静岡
[2]. coordination with high-schools 大学模擬授業（2024/9 )
[Details] 高校にて、理学部および研究紹介の講義
[Notes] 静岡県立静岡東高等学校
[3]. lecture meeting サイエンスカフェ（2024/8 )
[Details] 地震研究の現場では。。
[Notes] 静岡科学科　る・く・る
[4]. training courses サイエンスカフェ（2017/12 )
[Details] 「静かでは無い岡、かならず起こる大地震を知って備えよう」
[Notes] 静岡科学館
[5]. lecture meeting 長田生涯学習センター　講演会（2017/7 - 2017/7 )
[Details] 「駿河湾をもっと知ろう」
[Notes] 長田生涯学習センター

5/6 Display ALL

[1]. TV 「備え続けよ！～迫る巨大地震　守れ、わたしたちの未来～」 (2025/2/10)
[Summary]駿河湾における海底地殻変動の観測、技術開発の様子を報道
[Notes] SBS防災特別番組
[2]. newspaper 地震研究の現場　分かりやすく伝える　静岡科学科る・く・る　夏休み講演会 (2024/8/5)
[Summary]静岡科学館で行ったサイエンスカフェの様子を報道
[Notes] 静岡新聞朝刊
[3]. newspaper ”海底隆起”　漁に打撃　南海トラフでも可能性 (2024/1/16)
[Notes] 静岡新聞朝刊1面
[4]. newspaper 琉球海溝付近に観測点　地震予測精度向上へ　東海大と静大が設置 (2023/10/18)
[Summary]琉球海溝での海底地殻変動調査のための海底局の設置を報道
[Notes] 静岡新聞朝刊
[5]. newspaper 森町に設置　アクロス”引退” (2023/8/13)
[Notes] 静岡新聞朝刊1面

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[1]. 広報委員会（2014/4 ) [Association] 日本地震学会
[Details of activities]広報紙の編集
[2]. 広報紙編集長（2014/4 - 2016/3 ) [Association] 日本地震学会
[Details of activities]広報紙の責任編集
[3]. 代議員（2012/4 ) [Association] 日本地震学会
[Details of activities]学会の運営等の検討