Solid Earth Sciences(S)
Session Sub-categoryScience of the Earth's Interior & Tectonophysics
Session IDS-IT26
TitleStress geomechanics integrations: Observations, Modelings and Implications (OMI)
Short TitleStress geomechanics
Main ConvenerNameHungYu Wu
AffiliationJapan Agency for Marine-Earth Science and Technology
Co-Convener 1NameWeiren Lin
AffiliationGraduate School of Engineering, Kyoto University
Co-Convener 2NameYoshinori Sanada
AffiliationJapan Agency for Marine-Earth Science and Technology
Co-Convener 3NameChung-Han Chan
AffiliationEarth Observatory of Singapore, Nanyang Technological University
Session LanguageEE
ScopeStress geomechanics specifies how rocks respond to strain, fluid and heat that provide essential information on understanding seismic behaviors. Thus, some outreach researches address the stress state in the geological structures or along plate boundaries through geophysical, geodetic, geothermal and/or hydrological approaches, especially after recently great earthquakes. Such studies have raised the importance on the stress analysis, including stress evolution by seismic and volcanic activity, in-situ stress measurements, crust heterogeneity, and geodetic modeling for earthquake cycle. This session is to bring the multi-disciplinary studies together on stress geomechanics, including but not limited, to inland/ocean drilling, borehole measurement, focal mechanism of crustal and volcanic earthquakes, subsurface anisotropy analysis and geomechanical model applications. We focus our discussion not only on the observation in association with physical models, but also interdisciplinary cooperation in each research field.
Presentation FormatOral and Poster presentation
Invited Authors
  • Shinji Toda (International Research Institute of Disaster Science, Tohoku University)
  • Mikito Furuichi (Japan Agency for Marine-Earth Science and Technology)
  • Nikita Dubinya (The Schmidt Institute of Physics of the Earth of the Russian Academy of Sciences)
Time Presentation No Title Presenter Abstract
Oral Presentation May 20 AM1
09:00 - 09:15 SIT26-01Complex rupture termination, strain partitioning and dispersed stress transfer associated with the 2016 Kumamoto earthquake, Kyushu, JapanShinji Toda Abstract
09:15 - 09:30 SIT26-02Orientation of the SHmax in accretionary prisms from real-scale numerical sandbox experimentsMikito Furuichi Abstract
09:30 - 09:45 SIT26-03Establishing relationship between effective elastic moduli and stress state using critically stressed fractures conceptNikita Dubinya Abstract
09:45 - 10:00 SIT26-04Numerical simulations of the formation of a dynamic decollementArthur Bauville Abstract
10:00 - 10:15 SIT26-05Nankai Trough – An Introduction to 3D Geomechanical ModellingAdam Wspanialy Abstract
10:15 - 10:30 SIT26-06Time-dependent Seismic Hazard Assessment for Yangon, Myanmar: Impact of Stress Perturbation by Recent EarthquakesChung-Han Chan Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 20 Core Time
SIT26-P01 Dissimilarity classes of reduced stress tensors Atsushi Yamaji Abstract
SIT26-P02 Stress tensor inversion for heterogeneous fault-slip data using fault instability evaluation Katsushi Sato Abstract
SIT26-P03 Recovery of stress orientation around the Nojima Fault during postseismic period of ~20 years after the 1995 Mw 6.9 Kobe earthquake, Japan Takafumi Nishiwaki Abstract
SIT26-P04 Applications of DCDA method for in-situ crustal stress measurement using recovered core samples Kentaro Omura Abstract
SIT26-P05 The stress analysis in geothermal drilling project: example in I-Lan, North-East Taiwan HungYu Wu Abstract