地震発生論セミナー2026

Seismogenesis Seminar 2026

日程 夏学期 冬学期

概要 Outline

Time
Monday 15:00-16:30
Location
理学部1号館739号室 (Room 739) & Zoom
Topic

Summer : Fault Geometry

Autumn : TBD

Professor
井出哲，安藤亮輔，田中愛幸 (固体講座) 中谷正生，亀伸樹 (地震研究所)
Manager
高橋, 齋藤, 江守 (固体講座)

Previous seminars   2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025

ルール Rules

  • 担当者以外の人も論文を事前に読んできてください.
  • 担当者はスライドを用いて, 担当する論文の論旨に沿って解説してください.
  • スライドは英語で作成してください.
  • 日本の学生は日本語か英語で, 外国の学生は英語で発表してください.
  • 積極的な質疑応答を歓迎します.
  • Everyone is supposed to read the papers in advance.
  • The presenter should use slides to explain the main points and arguments of the assigned paper.
  • Slides should be in English.
  • Japanese students can present in either Japanese or English. For foreign students, please present in English.
  • Active participation in Q&A is encouraged.

Schedule of Summer Semester

Date Paper Presenter Information Classroom
04/06 担当決め / assignment
04/13 休み / skip
04/20 Plescia & Hayes. (2020) 齋藤
04/27 Dunham et al. (2011) 高橋
05/04 みどりの日/holiday
05/07 Goebel et al. (2017) 縣 振替日
05/11 Social Party for Science Faculty
05/18
05/25 JPGU
06/01 水曜授業
06/02 振替日
06/08 Cooke and Dair (2011) 江守
06/15 Marshall et al.(2017) 村田
06/22 Cochran et al. (2023) 大谷
06/29
07/06 Kirkpatrick et al. (2020) 矢野
07/13
07/20 海の日/Holiday
07/27 Sun et al. (2020) 會田

Autumn Semester

Date Paper Presenter Information Classroom
10/05 担当決め / assignment
10/12 スポーツの日 / holiday
10/19 Cocco et al. (2023) 高橋
10/26 Toffol et al. (2024) 會田
11/02 Noda et al. (2021) 齋藤
11/09 Lay et al. (2012) 江守
11/16 地震研中間発表
11/23 勤労感謝の日 / holiday
11/25 振替日 / Makeup for 11/23 (地震科学セミナー?)
11/30 McKenzie and Jackson (2012) Lili
12/07 AGU
12/14 Aubry et al. (2018) 村田
12/21 Gabriel et al. (2024) 縣
12/28 Ke et al. (2022) 大谷
1/4
1/11 成人の日 / holiday
1/18 Kaneko and Shearer (2015) 矢野
1/25

論文リスト Papers (S semester)

Theme : Fault Geometry
Purpose : To understand how geometries at various scales influence seismogenesis

  • Dunham et al. (2011) : フラクタルな凹凸を反映した2次元の動的シミュレーションにより観測波形のスペクトルを再現
    Earthquake Ruptures with Strongly Rate-Weakening Friction and Off-Fault Plasticity, Part 2: Nonplanar Faults

  • Otsuki and Dilov (2005) : 断層帯の階層的構造と成長の実験的検証
    Evolution of hierarchical self-similar geometry of experimental fault zones: Implications for seismic nucleation and earthquake size

  • Rodriguez Padilla et al. (2024) : 統計・地表トレースに基づき、幾何学的複雑性のスケールと破壊通過確率の関係を可視化し、関数化
    The Influence of Fault Geometrical Complexity on Surface Rupture Length

  • Cooke and Dair (2011) : シミュレーション-断層系の変化と効率との関係
    Simulating the recent evolution of the southern big bend of the San Andreas fault, Southern California

  • Taufiqurrahman et al.(2023) : 複雑断層系における地震系列の動的破壊シミュレーション
    Dynamics, interactions and delays of the 2019 Ridgecrest rupture sequence

  • Poliakov et al. (2002) : 破壊がどの方向に進むかの理論研究
    Dynamic shear rupture interactions with fault bends and off-axis secondary faulting

  • Marshall et al.(2017) : 測地と比較して断層の地下構造を推定する論文
    Mechanical models favor a ramp geometry for the Ventura-pitas point fault, California

  • Lee et al. (2024) : 断層形状がすべり特性に影響する。こちらのコメント及びその返信も発表に含めること
    Fault-network geometry influences earthquake frictional behaviour

  • Goebel et al. (2017) : 岩石実験のAEにおけるb値と境界面の粗さの関係
    What allows seismic events to grow big?: Insights from b-value and fault roughness analysis in laboratory stick-slip experiments

  • Matsumoto et al. (2024) : 地震のメカニズム解と応力場の関係をモール円上に投影し、b値との関係を議論
    Strength dependency of frequency–magnitude distribution in earthquakes and implications for stress state criticality

  • Cochran et al. (2023) : 地震の分布を用いて断層の粗さを推定し、b値との関係を議論
    Fault Roughness at Seismogenic Depths and Links to Earthquake Behavior

  • Plescia & Hayes. (2020) : 沈み込み帯のプレート境界モデルの形状と最大マグニチュード
    Geometric controls on megathrust earthquakes

  • Sun et al. (2020) : 沈み込む海山の地震活動への影響を2Dシミュレーションを用いて議論
    Mechanical and hydrological effects of seamount subduction on megathrust stress and slip

  • Kirkpatrick et al. (2020) : 反射法地震探査による巨大断層面の粗さの議論
    Subduction megathrust heterogeneity characterized from 3D seismic data

  • Shimizu et al. (2020) : 遠地波形から複雑な破壊を推定する手法
    Development of an inversion method to extract information on fault geometry from teleseismic data


    • 論文リスト Papers (A semester)

    Theme : Energy Budget
    Purpose : To understand how energy is released, dissipated, and partitioned during rupture

  • Cocco et al. (2023) : [Review]
    Fracture Energy and Breakdown Work During Earthquakes

  • Kaneko and Shearer (2015) : Effects of rupture geometry and directivity on source estimates [Simulation]
    Variability of seismic source spectra, estimated stress drop, and radiated energy, derived from cohesive-zone models of symmetrical and asymmetrical circular and elliptical ruptures

  • Chester et al. (2005) : Structural observations of a large-displacement exhumed fault [Geology]
    Fracture surface energy of the Punchbowl fault, San Andreas system

  • Lay et al. (2012) : Rupture properties across megathrust depth domains [Seismology]
    Depth-varying rupture properties of subduction zone megathrust faults

  • Ye et al. (2016) : Source parameter statistics for megathrusts [Seismology]
    Rupture characteristics of major and great (Mw ≥ 7.0) megathrust earthquakes from 1990 to 2015: 1. Source parameter scaling relationships

  • Aubry et al. (2018) : Heat generation and energy partition in laboratory ruptures [Rock Experiment]
    Frictional Heating Processes and Energy Budget During Laboratory Earthquakes

  • Okubo et al. (2019) : Off-fault damage in dynamic rupture simulations [Simulation]
    Dynamics, Radiation, and Overall Energy Budget of Earthquake Rupture With Coseismic Off-Fault Damage

  • Weng and Ampuero (2020) : Oblique slip and rupture speed [Simulation]
    Continuum of earthquake rupture speeds enabled by oblique slip

  • Noda et al. (2021) : Rupture scenarios based on energy-balance [Modeling, Geodecy]
    Energy-Based Scenarios for Great Thrust-Type Earthquakes in the Nankai Trough Subduction Zone, Southwest Japan, Using an Interseismic Slip-Deficit Model

  • Lambert et al. (2021) : Crack-like and pulse-like rupture energy budgets [Simulation]
    Propagation of large earthquakes as self-healing pulses or mild cracks

  • Ke et al. (2022) : [Simulation]
    Earthquake breakdown energy scaling despite constant fracture energy

  • Gabriel et al. (2024) : Scaling of fracture-energy [Simulation]
    Fault size–dependent fracture energy explains multiscale seismicity and cascading earthquakes

  • Toffol et al. (2024) : Heat, new surface area, and lattice-strain energy in fault rocks [Geology]
    On-fault earthquake energy density partitioning from shocked garnet in an exhumed seismic midcrustal fault

  • McKenzie and Jackson (2012) : [Modeling]
    Tsunami earthquake generation by the release of gravitational potential energy