Solid Earth Sciences (S)
Session Sub-category Seismology (SS)
Session ID S-SS10
Title Fault Rheology and Earthquake Physics
Short Title Fault Rheology and Earthquake Physics
Main Convener Name Ritsuya Shibata
Affiliation National Research Institute for Earth Science and Disaster Resilience
Co-Convener 1 Name Michiyo Sawai
Affiliation Chiba University
Co-Convener 2 Name Hanaya Okuda
Affiliation Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology
Co-Convener 3 Name Kenichi Tsuda
Affiliation Institute of Technology, Shimizu Corporation
Session Language 
J
Scope 
The goal of this session is to integrate theoretical, experimental, observational, and numerical perspectives from various fields such as seismology, geodesy, geology, mineralogy, and so on, to define what is known about earthquake source processes and the physical and chemical elementary processes of faulting. This session welcomes studies that address such issues as pre-, co-, and post-seismic processes, the rheology of seismogenic faults and fault rocks, laboratory experiments on elementary processes, numerical models based on frictional laws, and estimates of the stress field in the seismogenic zones. We also welcome studies on fault-zone drilling projects and in situ stress measurements.
Presentation Format Oral and Poster presentation
Invited Authors Yuji Itoh (Earthquake Research Institute, the University of Tokyo)
Takeshi Miyamoto (Graduate School of Science, Kyoto University)
Norio Shigematsu (Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology)
Sando Sawa (Deparment of Earth Science, Graduate School of Science, Tohoku Univeristy)
Time Presentation No Title Presenter
Oral Presentation May 29 AM1
9:15 - 9:30 SSS10-01 Identification of a non-planar fault from aftershock distribution with implicit modeling Haruo Horikawa
9:30 - 9:45 SSS10-02 Rupture kinematics of 2021 Mw7.4 Maduo, China earthquake and the implications for earthquake physics Gang Liu
9:45 - 10:00 SSS10-03 The complex rupture process of the 2021 MW 8.5 South Sandwich Islands earthquake Ryo Yamaguchi
10:00 - 10:15 SSS10-04 Development of a proxy of earthquake source complexities for representing temporal variation of focal mechanisms Naohiro Inoue
10:15 - 10:30 SSS10-05 Characteristics of earthquake source parameter and fault rupture propagation for moderate-to large earthquake Ritsuya Shibata
Oral Presentation May 30 AM1
9:15 - 9:30 SSS10-06 Distinct Patterns in Earthquake Occurrence along the Megathrust and within the Slab: Implications for False Detection of Repeaters Keisuke Yoshida
9:30 - 9:45 SSS10-07 On the interpretation of seismic and geodetic precursory of the 2017 Valparaiso earthquake Yuji Itoh
9:45 - 10:00 SSS10-08 Crustal Stress Variations in Japanese Inland Areas Kazutoshi Imanishi
10:00 - 10:15 SSS10-09 Understanding the stress state based on temporal changes in the activity of small to mid-sized earthquakes with DEFS Toshiko Terakawa
10:15 - 10:30 SSS10-10 Rebuilding normal-stress-modulated rate-and-state friction from adhesion theory and Griffith energetics Daisuke Sato
Oral Presentation May 30 AM2
10:45 - 11:00 SSS10-11 Estimating effective normal stress during SSE in Bungo channel from slip velocities and shear stress variations: Part 3 Toshinori Sato
11:00 - 11:15 SSS10-12 Constructing Plausible Rupture Scenario for the Nankai Trough Megathrust Earthquake based on Dynamic Simulation Kenichi Tsuda
11:15 - 11:30 SSS10-13 Performance Evaluation of Dynamic Source Inversion through Its Synthetic Tests Takeshi Miyamoto
11:30 - 11:45 SSS10-14 Effects of bimaterial interface on rupture along strike-slip branch faults
Effects of bimaterial interface on rupture along strike-slip branch faults 		Evan Marschall
11:45 - 12:00 SSS10-15 Does fracture energy of small earthquakes scale with slip or slip squared? Sae Watanabe
12:00 - 12:15 SSS10-16 The Impact of Medium Heterogeneity on Earthquake Cycles Based on Numerical Modelling Xu Sun
Oral Presentation May 30 PM1
13:45 - 14:00 SSS10-17 Multi-Fault Segment Complexity and Multi-Rupture Episodes during the 2024 Mw 7.5 Noto Peninsula Earthquake Rintaro Enomoto
14:00 - 14:15 SSS10-18 Detailed S-wave velocity structure in the onshore focal area of the 2024 Noto earthquake revealed by dense nodal seismic observations Ryota Takagi
14:15 - 14:30 SSS10-19 Graphene Oxide in the Fault Gouge of the Atotsugawa Fault System: Relationship of Fault Movement and Redox Reactions Tomoya Shimada
14:30 - 14:45 SSS10-20 Thermal Pressurization in Shallow Fault Zone in the Borehole Core of the Neodani Fault Tomoyuki Ohtani
14:45 - 15:00 SSS10-21 ICDP DSeis Project: Spatial variation of seismic wave velocity and alteration of ultramafic dike recovered from a seismogenic zone 3 km below the ground surface kaoru fujita
15:00 - 15:15 SSS10-22 Fault zone architecture, creep-cavitation and ductile fractures in crustal-scale faults at the base of the seismogenic zone Norio Shigematsu
Oral Presentation May 30 PM2
15:30 - 15:45 SSS10-23 Magnitude distribution during phase transformational faulting: Implication for deep-focus earthquakes Sando Sawa
15:45 - 16:00 SSS10-24 Evaluation of fault behavior with a complex structure using dual-slip-plane friction experiment Wataru Tanikawa
16:00 - 16:15 SSS10-25 Slow to fast earthquake transition in slip behavior statistics: Granular shear experiments under various friction and rigidity conditions Yuto Sasaki
16:15 - 16:30 SSS10-26 Validating strain measurement using Fiber Bragg Grating sensors embedded in a shallow thin slit Kurama Okubo
16:30 - 16:45 SSS10-27 Analysis of acoustic emissions and stress evolution in large-scale laboratory experiments to reveal the foreshock occurrence mechanism Ryo Ishiyama
16:45 - 17:00 SSS10-28 Failure Transition from Fracture to Plasticity in Nanoscale α-Quartz Asperity Collisions During Frictional Sliding SHENG LI
Presentation No Title Presenter
Poster Presentation May 30 PM3
SSS10-P01 Spontaneous crack tip propagation outside the nucleation zone taking account of the rate-and-state friction law and the interaction between heat and fluid Yoko Kono
SSS10-P02 Investigation of the Physical Mechanism of Adjacent Slow and Repeating Earthquakes Using a Wavy Frictional Heterogeneity Model Yuki Watanabe
SSS10-P03 Unexpected rupture triggering behavior of subshear and free-surface-induced supershear ruptures on stepover: which is more dangerous? Zijia Wang
SSS10-P04 Influence of the Shallow Low-Velocity Layer on Fault Rupture Behavior Using a Dynamic Model Shotaro Tane
SSS10-P05 Fault Rupture Termination of the 2016 Kumamoto earthquake within Aso Caldera: Insights from Multi-Beam Back-Projection and Strong Motion Records Nelson Pulido
SSS10-P06 Dynamic Rupture Inversion of Finite-fault with Curved Grid Finite-Difference Method: Synthetic Test and Applications Yuchen Zhang
SSS10-P07 Analytical approaches for simultaneous inversion of distributed slip, Green's function, and fault geometry Daisuke Sato
SSS10-P08 Deconvolution Approach to Estimate Radiation Process of Large (Mw7.0-9.0) Earthquakes Keisuke Yoshida
SSS10-P09 Analysis of Source Characteristics of Earthquakes Potentially Induced by Wastewater Injection in Peace River, Alberta, Canada Ahyi KIM
SSS10-P10 Reproduction of interplate slip phenomena along the Nankai Trough: Deep short-term slow slip events Fuyuki Hirose
SSS10-P11 Relationship between the Boso slow slip events and the accompanying earthquake swarm: Part 2 Issei Yasuhara
SSS10-P12 High-resolution estimation of the Boso Slow Slip Events in 2011, 2013–2014, 2018, and 2024 based on inflection point analysis of high-rate GNSS data Yuta Mitsui
SSS10-P13 Mapping Fault Zone Attenuation Using MiDAS Downhole Optical Fiber and Borehole Seismic Arrays Lu Hsiao
SSS10-P14 Calcite-bearing cataclasite and non-double-couple earthquakes in the aftershock area of the 2000 Tottori-ken Seibu earthquake Kiyokazu Oohashi
SSS10-P15 Seismic Fault Repetition Estimated from Pseudotachylyte in Eidsfjord, Northern Norway Asuka Tsuda
SSS10-P16 Evaluation of fluidization during earthquake slip at the primary slip zone in the Neogene accretionary complex, Boso Peninsula, Japan Tatsuru Fukuta
SSS10-P17 Quantitative evaluation of surface fracture energy in minor fault adjacent to the Taiwan Chelungpu fault Takumi Kawakami
SSS10-P18 Investigating Smectite Content in Neodani Fault Gouge: A Quantitative Approach to Understanding of Fault Mechanics Bosco de Sousa Auxilio
SSS10-P19 Relationship between deformation structure and seismic slip in the shallow part of the Neodani Fault zone Tsuyoshi Maeda
SSS10-P20 Off-fault Damage Development as Revealed by Fault Surveys Kosei Ogita
SSS10-P21 Deformation mechanisms of quartz in plate boundary rocks deformed in a deep slow earthquake source region Shota Komagino
SSS10-P22 Shear zone development in the deep part of subduction zone recorded in the Kerama Islands, Okinawa Kei Takahashi
SSS10-P23 Deformation mechanisms and stress field induced by seamount subduction: A case study at Funafuseyama Unit, Mino belt Fuka Takuwa
SSS10-P24 Frictional properties of limestone from seamounts under high temperature and high pressure Mayuko Sekikawa
SSS10-P25 Experimental investigation on effects of diagenesis on frictional and hydraulic properties of incoming sediments from Tohoku subduction zone Hayato Ito
SSS10-P26 Preliminary results of shear friction experiments using Shirahama sandstone for the construction of friction wear model Sumire Maeda
SSS10-P27 Examination of development process of boundary shear in powdered quartz gouge by rotary-friction experiments Minoru Kudose
SSS10-P28 Experimental evaluation of friction property of unaltered and altered basalt Yohei Donga
SSS10-P29 Frictional behavior of cation-exchanged biotite Hanaya Okuda
SSS10-P30 Dependence of the rate- and state-dependent friction parameters of metagabbro gouge on normal stress Futoshi Yamashita
SSS10-P31 Effects of pore fluid pressurization rate and permeability due to friction surface roughness on friction behaviors RIKU IWATA
SSS10-P32 Investigating Fracture Mechanisms in Hydraulic Fracturing by Dynamic Event Localization Zhi Yuan
SSS10-P33 Toward frictional experiments at brittle-plastic transition pressures with high-flux synchrotron X-ray Rikuto Honda
SSS10-P34 Earthquake Stress-Drop Estimation in Laboratory Experiment with Machine Learning Gauss Te-Chuan Chang