OKUWAKI Ryo

Affiliation
Institute of Life and Environmental Sciences
Official title
Associate Professor
ORCID
0000-0001-7149-4763
Email
/C@<FH2<:Tc_86@=]EDF<F32]24];A
Research fields
Solid earth and planetary physics
Research keywords
Geophysics
Seismology
Research projects
日本海沿岸域で発生する大地震における逆断層連動確率の定量化2025-04 -- 2029-03八木 勇治Japan Society of for the Promotion of Science/Grant-in-Aid for Scientific Research (B)18,330,000Yen
What rocks the Earth? Unearthing non-earthquake sources from noise2024-04 -- 2028-03Ryo OKUWAKIJapan Society for the Promotion of Science/Grants-in-Aid for Scientific Research(B)12,870,000Yen
Exploring slow-to-fast earthquake transition phenomena using a data-driven strategy2024-04 -- 2026-03Ryo OKUWAKIJapan Society for the Promotion of Science/Grant-in-Aid for Transformative Research Areas(A)4,030,000Yen
余効変動の把握と予測に向けた地殻変動データ解析と粘弾性データ同化システムの構築2021-04 -- 2025-03加納 将行Japan Society of for the Promotion of Science/Grant-in-Aid for Scientific Research(C)4,160,000Yen
Unraveling unconventional seismic sources using dense seismic arrays2020-04 -- 2024-03Ryo OKUWAKIJapan Society of for the Promotion of Science/Grant-in-Aid for Early-Career Scientists3,770,000Yen
Rupture evolution during the mega and large earthquakes resolved by multi-scale source analyses2019-04 -- 2022-03Ryo OKUWAKIJapan Society of for the Promotion of Science/Grant-in-Aid for JSPS Fellows4,420,000Yen
Irregular rupture evolution during the large/great earthquakes: resolved by high-frequency radiation sources and co-seismic slip2016-04 -- 2019-03Ryo OKUWAKIJapan Society of for the Promotion of Science/Grant-in-Aid for JSPS Fellows2,500,000Yen
Career history
2025-08 -- (current)University of TsukubaInstitute of Life and Environmental SciencesAssociate Professor
2019-06 -- 2025-07University of TsukubaFaculty of Life and Environmental SciencesAssistant Professor
2022-11 -- 2022-12Institute of Geophysics and Planetary Physics, Scripps Institution of Oceanography, UC San Diego,Visiting Scholar
2020-03 -- 2022-03University of Leeds,School of Earth and Environment,Visting Professor
2019-09 -- 2019-12Florida State University,Department of Earth, Ocean & Atmospheric Science,Visting Scholar
2019-04 -- 2019-06Japan Society for the Promotion of Science　National Institute of Advanced Industrial Science and Technology　Research Fellow PD
2016-04 -- 2019-03Japan Society for the Promotion of Science　University of Tsukuba　Research Fellow DC1
Degree
2019-03-25Doctor of Philosophy in ScienceUniversity of Tsukuba
2016-03-25Master of ScienceUniversity of Tsukuba
2014-03-25Bachelor of ScienceUniversity of Tsukuba
Honors & Awards
2023-05Young Scientist Award of the Seismological Society of Japan
2022-11-082022 Young Faculty Award
2022-04-25AGU 2021 Editors' Citation for Excellence in Refereeing - JGR-Solid Earth
2021-01-28EPS Excellent Reviewers 2020
2019-03-25President Prize
2018-05-25JpGU Meeting 2018 Outstanding Student Presentation Award
2018-04-01Outstanding Reviewer, Earth and Planetary Science Letters
2017-05-31JpGU-AGU Joint Meeting 2017 Outstanding Student Presentation Award
2015-01-21Outstanding Student Presentation Awards
Articles
Conference, etc.
  • Illuminating Complex Processes of Recent Large Earthquakes through Potency Density Tensor Inversion
    OKUWAKI Ryo
    Commemorating 3rd Anniversary Year of The February 6, 2023 Kahramanmaraş Earthquakes Experience in Earth Sciences and Earthquake Engineering/2026-02-06
  • The 2025 Kamchatka Earthquake: Anomalously short Recurrence Interval and its Implication
    深畑 幸俊; 八木 勇治; 奥脇 亮; 髙川 智博; 遠田 晋次
    The 2025 SSJ Fall Meeting/2025-10-22
  • Hierarchical Clustering of the potency density tensor inversion model: a case study of the 1993 Hokkaido Nansei-Oki earthquake
    原嶋 幸生; 八木 勇治; 奥脇 亮
    The 2025 SSJ Fall Meeting/2025-10-21
  • Detecting intermediate period seismicity around Sofugan in October 2023
    青木 泰智; 奥脇 亮
    The 2025 SSJ Fall Meeting/2025-10-21
  • Source fault reconstruction of the 2025 Myanmar earthquake from teleseismic wavefields
    佐藤 大祐; 奥脇 亮; 八木 勇治; 深畑 幸俊
    The 2025 SSJ Fall Meeting/2025-10-21
  • Estimation of a Source Process Generating the Peculiar Teleseismic P-waves of the 2025 Myanmar Earthquake
    井上 尚滉; 八木 勇治; 奥脇 亮; 山口 諒; ENESCU Bogdan; Tadapansawu...
    The 2025 SSJ Fall Meeting/2025-10-21
  • The 2025 Drake Passage Earthquake: Interplate and Intraplate Fault Ruptures
    山口 諒; 八木 勇治; 奥脇 亮; 井上 尚滉
    The 2025 SSJ Fall Meeting/2025-10-20
  • Considering a Proxy of source process complexities based on temporal change of focal mechanisms
    INOUE Naohiro; YAGI Yuji; OKUWAKI Ryo; YAMAGUCHI Ryo
    International Joint Workshop on Slow-to-Fast Earthquakes 2025/2025-09-24--2025-09-26
  • The slow rupture process during the 2021 Mw 8.5 South Sandwich Islands earthquake
    YAMAGUCHI Ryo; YAGI Yuji; OKUWAKI Ryo; ENESCU Bogdan
    International Joint Workshop on Slow-to-Fast Earthquakes 2025/2025-09-24--2025-09-26
  • Finding rupture hesitation in a complex rupture process
    OKUWAKI Ryo; YAGI Yuji
    International Joint Workshop on Slow-to-Fast Earthquakes 2025/2025-09-24--2025-09-26
  • 滑り・グリーン関数・断層形状の同時推定の定式化と解の解析的表現
    佐藤 大祐; 八木 勇治; 奥脇 亮; 深畑 幸俊
    日本地球惑星科学連合2025年大会/2025-05-30
  • 震源メカニズムの時間変化に着目した震源過程の複雑性を評価するプロキシの検討
    井上 尚滉; 八木 勇治; 奥脇 亮; 山口 諒
    日本地球惑星科学連合2025年大会/2025-05-29
  • The complex rupture process of the 2021 MW 8.5 South Sandwich Islands earthquake
    山口 諒; 八木 勇治; 奥脇 亮; Bogdan Enescu
    日本地球惑星科学連合2025年大会/2025-05-29
  • 平成5年北海道南西沖地震と令和6年能登半島地震の震源過程の階層クラスタリング
    原嶋 幸生; 八木 勇治; 奥脇 亮
    日本地球惑星科学連合2025年大会/2025-05-28
  • AELUMA法を用いた2023年10月孀婦岩周辺で発生した震源の探索
    青木 泰智; 奥脇 亮
    日本地球惑星科学連合2025年大会/2025-05-25
  • 複数の断層が連動した海洋プレート内横ずれ大地震の震源過程の特徴
    井上 尚滉; 八木 勇治; 奥脇亮; 山口 諒
    日本地震学会秋季大会/2024-10-21--2024-10-23
  • 破壊継続時間が長い地震における震源インバージョン手法の検討
    山口 諒; 八木 勇治; 奥脇亮
    日本地震学会秋季大会/2024-10-21--2024-10-23
  • 2023年ロイヤリティ諸島南東部地震（MW 7.7）で発生した複雑な破壊過程
    村上 明叶; 八木 勇治; 奥脇亮
    日本地震学会秋季大会/2024-10-21--2024-10-23
  • Rupture Dynamics and Fault Characteristics of the Maidan Fault during the 2024 Mw 7.1 Wushi Earthquake in Xinjiang, China
    高 航宇; 八木 勇治; 奥脇亮
    日本地震学会秋季大会/2024-10-21--2024-10-23
  • フンガ・トンガ＝フンガ・ハアパイ火山における2022年噴火前・中・後のイベント検出と大規模噴火の運動学的モデリング
    奥脇 亮; Fan Wenyuan
    日本地震学会2023年度秋季大会/2023-11-01
  • 稠密な三つ組サブアレーを用いた超低周波地震の検出
    奥脇 亮; Fan Wenyuan; 松澤 孝紀; 武村 俊介
    日本地震学会2023年度秋季大会/2023-11-01
  • 2021年サウスサンドウィッチ諸島地震における複雑な震源過程
    山口 諒; 八木 勇治; 奥脇 亮
    日本地震学会2023年度秋季大会/2023-11-01
  • 高自由度な震源過程モデルによって明らかになった階層的な破壊成長
    八木 勇治; 奥脇 亮
    日本地震学会2023年度秋季大会/2023-11-01
  • 2023年ロイヤリティ諸島南東部地震で発生した逆破壊伝播
    村上 明叶; 八木 勇治; 奥脇 亮
    日本地震学会2023年度秋季大会/2023-10-31
  • 高自由度な震源過程イメージングによる破壊成長の複雑性と断層形状の関係の究明
    奥脇 亮
    日本地震学会2023年度秋季大会/2023-10-31
  • more...
Teaching
2025-09 -- 2025-09Basic Field Works on Geology IIUniversity of Tsukuba.
2025-04 -- 2025-07Geodynamics, ExperimentUniversity of Tsukuba.
2025-10 -- 2025-12Advanced Studies in Geodynamics IIUniversity of Tsukuba.
2025-04 -- 2025-07Advanced Studies in Geodynamics IUniversity of Tsukuba.
2025-04 -- 2025-07Geodynamics, SeminarUniversity of Tsukuba.
2025-04 -- 2025-06Origin, Evolution, Dynamics and Resources of the Earth BUniversity of Tsukuba.
2025-10 -- 2026-02Special Study in Earth Evolution Sciences IIbUniversity of Tsukuba.
2025-04 -- 2025-08Special Study in Earth Evolution Sciences IIaUniversity of Tsukuba.
2025-10 -- 2026-02Special Study in Earth Evolution Sciences IbUniversity of Tsukuba.
2025-04 -- 2025-08Special Study in Earth Evolution Sciences IaUniversity of Tsukuba.
more...
Professional activities
2026-04 -- (current)SEISMOLOGICAL SOCIETY OF JAPAN通常代議員
2025-07 -- (current)Japan Geoscience Union固体地球科学セクションプログラム委員
2025-04 -- (current)SEISMOLOGICAL SOCIETY OF JAPAN査読付き学会誌「地震」編集委員
2023-04 -- 2024-03SEISMOLOGICAL SOCIETY OF JAPAN地震学夏の学校2023実行臨時委員会
2022-07 -- (current)SeismicaEditorial Board member
University Management
2021-04 -- (current)山岳科学センター運営委員会委員
2022-04 -- (current)MSC Annual Report Meeting Organizing CommitteeChair
2020-04 -- (current)山岳科学センター広報委員会委員長
Other activities
2022-07 -- (current)Seismica - Editorial Board member

(Last updated: 2026-02-19)