Agata Ryoichiro 縣亮一郎

Researcher Number	80793679
Other IDs
Affiliation (Current)	2025: 国立研究開発法人海洋研究開発機構, 海域地震火山部門(地震発生帯研究センター), 研究員
Affiliation (based on the past Project Information) *help	2021 – 2024: 国立研究開発法人海洋研究開発機構, 海域地震火山部門(地震発生帯研究センター), 研究員 2019 – 2020: 国立研究開発法人海洋研究開発機構, 海域地震火山部門(地震津波予測研究開発センター), 研究員 2018: 国立研究開発法人海洋研究開発機構, 地震津波海域観測研究開発センター, ポストドクトラル研究員
Review Section/Research Field	Principal Investigator Transformative Research Areas, Section (II) / Basic Section 17040:Solid earth sciences-related / Science and Engineering Except Principal Investigator Science and Engineering
Keywords	Principal Investigator 震源決定 / ベイズ推定 / アンサンブル / 3次元速度構造モデル / 走時計算 / 物理情報に基づく深層学習 / 南海トラフ / 地下構造推定 / 震源解析 / 深層学習 … More / 地震波トモグラフィ / 有限要素法 / データ同化 / 測地データ解析 / すべり分布推定 / 地下構造 / ベイス推定 / モデル予測誤差 / スロースリップイベント … More Except Principal Investigator 断層すべり過程 / テクトニクス / 内陸活断層 / 山陰歪集中帯 / 熊本地震 / 変形モデル / 断層レオロジーと地震発生 / 島弧内陸変動 / 東北地方太平洋沖地震 / 固体地球物理学 / 東北沖地震 / 断層 / レオロジー / 歪集中帯 / 余効変動 / 2011年東北沖地震 / モデル化 / 断層レオロジー / 媒質特性 / 変形 / 島弧地殻 Less

南海トラフ３次元速度構造モデルに基づく走時計算ニューラルネットワークの構築・公開Principal Investigator
- Principal Investigator
  
  縣亮一郎
- Project Period (FY)
  2024 – 2025
- Research Category
  
  Grant-in-Aid for Transformative Research Areas (A)
- Review Section
  
  Transformative Research Areas, Section (II)
- Research Institution
  Japan Agency for Marine-Earth Science and Technology
Next-generation Bayesian seismic source estimation integrated with ensemble underground structure estimationPrincipal Investigator
- Principal Investigator
  
  Agata Ryoichiro
- Project Period (FY)
  2021 – 2023
- Research Category
  
  Grant-in-Aid for Early-Career Scientists
- Review Section
  
  Basic Section 17040:Solid earth sciences-related
- Research Institution
  Japan Agency for Marine-Earth Science and Technology
Numerically robust data assimilation of long-term SSEs considering heterogeneous elastic structurePrincipal Investigator
- Principal Investigator
  
  縣亮一郎
- Project Period (FY)
  2019 – 2020
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  Japan Agency for Marine-Earth Science and Technology
Development of models for deformation and fault slip processes in the island arc crust
- Principal Investigator
  
  Bunichiro Shibazaki
- Project Period (FY)
  2014 – 2018
- Research Category
  
  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
- Review Section
  
  Science and Engineering
- Research Institution
  Building Research Institute

All 2023 2022 2021 2020 2019 2018

All Journal Article Presentation

[Journal Article] Bayesian Seismic Tomography Based on Velocity-Space Stein Variational Gradient Descent for Physics-Informed Neural Network2023
- Author(s)
  Agata Ryoichiro、Shiraishi Kazuya、Fujie Gou
- Journal Title
  
  IEEE Transactions on Geoscience and Remote Sensing
  
  Volume: 61 Pages: 1-17
- DOI
  10.1109/tgrs.2023.3295414
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-23K04331, KAKENHI-PROJECT-21K14024
[Journal Article] Bayesian Multi‐Model Estimation of Fault Slip Distribution for Slow Slip Events in Southwest Japan: Effects of Prior Constraints and Uncertain Underground Structure2022
- Author(s)
  Agata, R., Nakata, R., Kasahara, A., Yagi, Y., Seshimo, Y., Yoshioka, S., & Iinuma, T
- Journal Title
  
  Journal of Geophysical Research: Solid Earth
  
  Volume: 127 Issue: 8
- DOI
  10.1029/2021jb023712
- Peer Reviewed
- Data Source
  KAKENHI-PROJECT-21K14024
[Journal Article] A Bayesian inference framework for fault slip distributions based on ensemble modeling of the uncertainty of underground structure - With a focus on uncertain fault dip2021
- Author(s)
  Ryoichiro Agata, Amato Kasahara, Yuji Yagi
- Journal Title
  
  GEOPHYSICAL JOURNAL INTERNATIONAL
  
  Volume: Volume 225, Issue 2 Issue: 2 Pages: 1392-1411
- DOI
  10.1093/gji/ggab033
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PUBLICLY-19H04631, KAKENHI-PLANNED-16H06477
[Journal Article] Introduction of covariance components in slip inversion of geodetic data following a non-uniform spatial distribution and application to slip deficit rate estimation in the Nankai Trough subduction zone2020
- Author(s)
  Agata, R.
- Journal Title
  
  Geophysical Journal International
  
  Volume: 221 Issue: 3 Pages: 1832-1844
- DOI
  10.1093/gji/ggaa116
- Peer Reviewed / Open Access
- Data Source
  KAKENHI-PLANNED-16H06477, KAKENHI-PUBLICLY-19H04631
[Journal Article] Rapid mantle flow with power-law creep explains deformation after the 2011 Tohoku mega-quake2019
- Author(s)
  Ryoichiro Agata, Sylvain D. Barbot, Kohei Fujita, Mamoru Hyodo, Takeshi Iinuma, Ryoko Nakata, Tsuyoshi Ichimura, Takane Hori
- Journal Title
  
  Nature Communications
  
  Volume: 10 Issue: 1
- DOI
  10.1038/s41467-019-08984-7
- Peer Reviewed / Open Access / Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-17K14719, KAKENHI-PLANNED-26109007, KAKENHI-PROJECT-18H05239
[Presentation] 三重県南東沖における地下構造と震源のPhysics-informed neural networkによるアンサンブル推定2023
- Author(s)
  縣亮一郎、白石和也、藤江剛
- Organizer
  日本地震学会2023年度秋季大会
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] Bayesian seismic tomography based on particle-based variational inference in velocity-space for physics-informed neural network2023
- Author(s)
  Ryoichiro Agata, Kazuya Shiraishi, Gou Fujie
- Organizer
  Asia Oceania Geosciences Society 20th Annual Meeting
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] Bayesian physics-informed neural networks for seismic tomography based on function-space particle-based variational inference2023
- Author(s)
  Ryoichiro Agata, Kazuya Shiraishi, Gou Fujie
- Organizer
  10th International Congress on Industrial and Applied Mathematics
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] Ensemble estimation of seismic velocity and hypocenter based on physics-informed neural network2023
- Author(s)
  Ryoichiro Agata, Kazuya Shiraishi, Gou Fujie
- Organizer
  AGU Annual Meeting 2023
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] アイコナル方程式に基づくトモグラフィ解析のBayesian physics-informed neural networkを用いた不確実性定量化と地震探査データによる地震波速度構造推定への適用2023
- Author(s)
  縣亮一郎、白石和也、藤江剛
- Organizer
  第20回(2023年度)日本応用数理学会研究部会連合発表会
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] Physics-informed neural networksと粒子ベース変分推論に基づくベイジアン屈折初動走時トモグラフィ手法の開発2023
- Author(s)
  縣亮一郎、白石和也、藤江剛
- Organizer
  日本地球惑星科学連合2023年大会
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] 地下構造の不確かさを考慮したベイズマルチモデル断層すべり推定について2022
- Author(s)
  縣亮一郎、中田令子、笠原天人、八木勇治、瀬下幸成、吉岡祥一、飯沼卓史
- Organizer
  日本地球惑星科学連合2022年大会
- Invited
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] Bayesian Multi-model Fault Slip Estimation for Slow Slip Events Considering the Uncertainty of Underground Structure2022
- Author(s)
  Ryoichiro Agata, Ryoko Nakata, Amato Kasahara, Yuji Yagi,Yukinari Seshimo, Shoichi Yoshioka, Takeshi Iinuma
- Organizer
  AOGS2022 Virtual
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] Physics-informed neural networksと粒子ベース変分推論による地震波トモグラフィの不確かさ定量2022
- Author(s)
  縣亮一郎
- Organizer
  日本地震学会2022年度秋季大会
- Invited
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] A type of Bayesian multi-model inference for fault slip distribution: the effect of prior constraints in the estimation for slow slip events beneath the Bungo Channel, southwest Japan2021
- Author(s)
  Ryoichiro Agata, Ryoko Nakata, Amato Kasahara, Yuji Yagi, Yukinari Seshimo, Shoichi Yoshioka, Takeshi Iinuma
- Organizer
  AGU Fall Meeting 2021
- Int'l Joint Research
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] A Bayesian inversion for slip distribution of slow slip events beneath the Bungo Channel based on ensemble modeling of the uncertainty of underground structure2021
- Author(s)
  Ryoichiro Agata, Ryoko Nakata, Yuji Yagi, Takeshi Iinuma
- Organizer
  Japan Geoscience Union Meeting 2021
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] 豊後水道長期的スロースリップにおけるすべり分布のベイズマルチモデル推定：先験的拘束条件の推定結果に対する影響2021
- Author(s)
  縣亮一郎、中田令子、笠原天人、八木勇治、瀬下幸成、吉岡祥一、飯沼卓史
- Organizer
  地震学会2021年度秋季大会
- Data Source
  KAKENHI-PROJECT-21K14024
[Presentation] Bayesian estimation of fault slip distributions based on ensemble modeling of the underground structure uncertainty2020
- Author(s)
  Ryoichiro Agata, Amato Kasahara, Yuji Yagi
- Organizer
  AGU Fall Meeting 2020
- Data Source
  KAKENHI-PUBLICLY-19H04631
[Presentation] Revisiting the slip distribution of the long term slow slip events in the Bungo Channel: Up and downdip limit of the distribution2020
- Author(s)
  Ryoichiro Agata, Ryoko Nakata, Yuji Yagi, Takeshi Iinuma
- Organizer
  Slow Earthquakes WS 2020 Virtual
- Data Source
  KAKENHI-PUBLICLY-19H04631
[Presentation] 地下構造の不確かさをアンサンブルモデリングにより考慮した断層すべり分布ベイズ推定2020
- Author(s)
  Ryoichiro Agata, Amato Kasahara, Yuji Yagi
- Organizer
  日本地震学会2020年度秋季大会
- Data Source
  KAKENHI-PUBLICLY-19H04631
[Presentation] 陸・海域の測地データを用いたすべり逆解析へのデータ共分散の導入と南海トラフ域のすべり欠損分布推定への適用2019
- Author(s)
  縣　亮一郎、飯沼　卓史
- Organizer
  日本地震学会2019年度秋季大会
- Data Source
  KAKENHI-PUBLICLY-19H04631
[Presentation] Introduction of covariance components in slip geodetic inversion of land and seafloor data and application to interseismic displacement rates in Nankai Trough subduction zone2019
- Author(s)
  Ryoichiro Agata
- Organizer
  AGU Fall Meeting 2019
- Data Source
  KAKENHI-PUBLICLY-19H04631
[Presentation] Modelling of the Early Postseismic Deformation Associated with the 2011 Tohoku-Oki Earthquake with Considering Non-linear Rheology2018
- Author(s)
  Iinuma, T., R. Agata, Y. Ohta, R. Hino, and T. Hori
- Organizer
  AGU 2018 Fall Meeting
- Int'l Joint Research
- Data Source
  KAKENHI-PLANNED-26109007
[Presentation] 非線形粘弾性を考慮した2011年東北地方太平洋沖地震の初期余効変動のモデル化の試み2018
- Author(s)
  飯沼卓史, 縣亮一郎, 堀高峰, 太田雄策, 日野亮太
- Organizer
  日本地震学会2018年度秋季大会
- Data Source
  KAKENHI-PLANNED-26109007

1. Bunichiro Shibazaki (20344012)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
2. 西村卓也 (90370808)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
3. 飯沼卓史 (10436074)

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
4. 安藤亮輔 (10455256)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
5. 野田博之 (50619640)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
6. 矢部康男 (30292197)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
7. 大園真子 (10623837)

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
8. HINO Ryota

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
9. KIDO Motoyuki

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
10. HORI Takane

# of Collaborated Projects: 1 results

# of Collaborated Products: 2 results
11. ARIYOSHI Keisuke

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
12. SASAJIMA Ryohei

# of Collaborated Projects: 1 results

# of Collaborated Products: 0 results
13. 藤田航平

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results
14. 白石和也

# of Collaborated Projects: 0 results

# of Collaborated Products: 1 results

Agata Ryoichiro 縣 亮一郎

Research Projects

Research Products

Co-Researchers

南海トラフ３次元速度構造モデルに基づく走時計算ニューラルネットワークの構築・公開Principal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Next-generation Bayesian seismic source estimation integrated with ensemble underground structure estimationPrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Numerically robust data assimilation of long-term SSEs considering heterogeneous elastic structurePrincipal Investigator

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

Development of models for deformation and fault slip processes in the island arc crust

Principal Investigator

Project Period (FY)

Research Category

Review Section

Research Institution

[Journal Article] Bayesian Seismic Tomography Based on Velocity-Space Stein Variational Gradient Descent for Physics-Informed Neural Network2023

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Bayesian Multi‐Model Estimation of Fault Slip Distribution for Slow Slip Events in Southwest Japan: Effects of Prior Constraints and Uncertain Underground Structure2022

Author(s)

Journal Title

DOI

Data Source

[Journal Article] A Bayesian inference framework for fault slip distributions based on ensemble modeling of the uncertainty of underground structure - With a focus on uncertain fault dip2021

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Introduction of covariance components in slip inversion of geodetic data following a non-uniform spatial distribution and application to slip deficit rate estimation in the Nankai Trough subduction zone2020

Author(s)

Journal Title

DOI

Data Source

[Journal Article] Rapid mantle flow with power-law creep explains deformation after the 2011 Tohoku mega-quake2019

Author(s)

Journal Title

DOI

Data Source

[Presentation] 三重県南東沖における地下構造と震源のPhysics-informed neural networkによるアンサンブル推定2023

Author(s)

Organizer

Data Source

[Presentation] Bayesian seismic tomography based on particle-based variational inference in velocity-space for physics-informed neural network2023

Author(s)

Organizer

Data Source

[Presentation] Bayesian physics-informed neural networks for seismic tomography based on function-space particle-based variational inference2023

Author(s)

Organizer

Data Source

[Presentation] Ensemble estimation of seismic velocity and hypocenter based on physics-informed neural network2023

Author(s)

Organizer

Data Source

[Presentation] アイコナル方程式に基づくトモグラフィ解析のBayesian physics-informed neural networkを用いた不確実性定量化と地震探査データによる地震波速度構造推定への適用2023

Author(s)

Organizer

Data Source

[Presentation] Physics-informed neural networksと粒子ベース変分推論に基づくベイジアン屈折初動走時トモグラフィ手法の開発2023

Author(s)

Organizer

Data Source

[Presentation] 地下構造の不確かさを考慮したベイズマルチモデル断層すべり推定について2022

Author(s)

Organizer

Agata Ryoichiro 縣亮一郎