Solid Earth Sciences(S)
Session Sub-categoryComplex & General
Session IDS-CG57
TitleDynamics in mobile belts
Short TitleDynamics in mobile belts
Main ConvenerNameYukitoshi Fukahata
AffiliationDisaster Prevention Research Institute, Kyoto University
Co-Convener 1NameToru Takeshita
AffiliationDepartment of Natural History Sciences, Graduate School of Science, Hokkaido University
Co-Convener 2NameHikaru Iwamori
AffiliationGeochemical Evolution Research Program, Japan Agency for Marine-Earth Science and Technology
Session LanguageEJ
ScopeThe dynamic behaviours of mobile belts are expressed across a wide range of time scales, from the seismic and volcanic events that impact society during our lifetimes, to orogeny and the formation of large-scale fault systems which can take place over millions of years. Deformation occurs on length scales from microscopic fracture and flow to macroscopic deformation to plate-scale tectonics. To gain a physical understanding of the dynamics of mobile belts, we must determine the relationships between deformation and the driving stresses due to plate motion and other causes, which are connected through the rheological properties of the materials. To understand the full physical system, an integration of geophysics, geomorphology, and geology is necessary, as is the integration of observational, theoretical and experimental approaches. In addition, because rheological properties are greatly affected by fluids in the crust and fluid chemical reactions, petrological and geochemical approaches are also important. After the 2011 great Tohoku-oki earthquake, large-scale changes in seismic activity and regional scale crustal deformation were observed, making present-day Japan a unique natural laboratory for the study of the dynamics of mobile belts. This session welcomes presentations from different disciplines, such as seismology, geodesy, tectonic geomorphology, structural geology, petrology, and geofluids, as well as interdisciplinary studies, that relate to the dynamic behaviour of mobile belts.
Presentation FormatOral and Poster presentation
Invited Authors
  • Satoshi Matsumoto (Institute of Seismology and Volcanology, Faculty of Sciences, Kyushu University)
  • Angela Meneses-Gutierrez (Disaster Prevention Research Institute, Kyoto University)
  • Aitaro Kato (Earthquake Research Institute, the University of Tokyo)
Time Presentation No Title Presenter Abstract
Oral Presentation May 22 PM1
13:45 - 14:00 SCG57-01"0.1 Manten" hyper dense seismic observation for a sight of crustal activity –preliminary result about focal mechanisms around source fault hosting the 2000 Western Tottori EQ (M7.3) –Satoshi Matsumoto Abstract
14:00 - 14:15 SCG57-02Fluid in the lower crust estimated by a high-resolution reflection analysis in the northern Kinki district, southwestern JapanShinya Kato Abstract
14:15 - 14:30 SCG57-03Fluid distribution in crust inferred from seismic velocities and electrical conductivityTohru Watanabe Abstract
14:30 - 14:45 SCG57-04Stress rotation found in the aftershock area of the 2000 Western Tottori Earthquake and its temporal variationTakaki Iwata Abstract
14:45 - 15:00 SCG57-05Aftershock observation of the 2016 Central Tottori EarthquakeYoshihisa Iio Abstract
15:00 - 15:15 SCG57-06Modeling deformation and stress state in the San-in strain concentration zoneBunichiro Shibazaki Abstract
Oral Presentation May 22 PM2
15:30 - 15:45 SCG57-07Accelerated Subduction Following Megathrust Earthquakes in Japan, Sumatra, and ChileMohammad Yuzariyadi Abstract
15:45 - 16:00 SCG57-08Stress change in the northern Ibaraki prefecture and the Fukushima Hamadori areas from geodetic and seismicity dataTakahiko Uchide Abstract
16:00 - 16:15 SCG57-09A detailed view of the earthquake swarms triggered by the pore pressure change after the 2011 Tohoku-Oki earthquake: Rupture directivity and frictional strength variation on faultsKeisuke Yoshida Abstract
16:15 - 16:30 SCG57-10Modeling absolute stress in the Northeast Japan island arc and stress change caused by the 2011 Tohoku earthquakeRyohei Sasajima Abstract
16:30 - 16:45 SCG57-11Absolute Stress Fields in the Source Region of the 1992 Landers EarthquakeToshiko Terakawa Abstract
16:45 - 17:00 SCG57-12Reconsideration of moment tensor: two different representations and their physical meaningsMitsuhiro Matsu'ura Abstract
Oral Presentation May 23 AM1
09:00 - 09:15 SCG57-13Aseismic crustal deformation in southwestern Taiwan: Insights into the driving mechanismsKotaro Tsukahara Abstract
09:15 - 09:30 SCG57-14Dense thermochronometric mapping in the NE Japan Arc: Constraint the uplift style of the mountains based on apatite fission-track (AFT) analysisShoma Fukuda Abstract
09:30 - 09:45 SCG57-15Thermochronologic mapping of the Japan Arc: Toward reconstruction of the long-term uplift-denudation historyTakahiro Tagami Abstract
09:45 - 10:00 SCG57-16Elastic and Inelastic behavior in the Mid-Niigata area as observed by a dense GNSS network through the preseismic, coseismic and postseismic deformation of the 2011 Tohoku-oki earthquakeAngela Meneses-Gutierrez Abstract
10:00 - 10:15 SCG57-17Localized strain rate in the Tohoku region before and after the Tohoku-Oki earthquakeTomomi Inamatsu Abstract
10:15 - 10:30 SCG57-18Pulverization in a meta-anorthosite of a lower crustal shear zoneYusuke Soda Abstract
Oral Presentation May 23 AM2
10:45 - 11:00 SCG57-19Intraplate faulting, stress accumulation, and shear localization of a crust-upper mantle system with nonlinear viscoelastic rheologiesXUELEI ZHANG Abstract
11:00 - 11:15 SCG57-20Geodetic exploration of the elastic/inelastic behavior of the Earth’s crust: resolution of mechanical response using interseismic, coseismic, and postseismic deformationTakeshi Sagiya Abstract
11:15 - 11:30 SCG57-21Model construction of heterogeneous fault deformation at depth: Fault rocks along the Median Tectonic Line, eastern Kii peninsula, SW Japan.Takuma Katori Abstract
11:30 - 11:45 SCG57-22Model construction of heterogeneous fault deformation at depth: Fault zone architecture along the Median Tectonic Line, eastern Kii peninsula, SW Japan.Norio Shigematsu Abstract
11:45 - 12:00 SCG57-23Frictional properties of fault rocks developed along the Median Tectonic LineIchiko Shimizu Abstract
12:00 - 12:15 SCG57-24Development of the Median Tectonic Line fault zone, Mie Prefecture, southwest Japan: Strain localization and softeningToru Takeshita Abstract
Oral Presentation May 23 PM1
13:45 - 14:00 SCG57-25Kinematic history along the Hinagu fault zone, Kumamoto Prefecture, Kyushu, JapanKenta Kobayashi Abstract
14:00 - 14:15 SCG57-26Change in state of stress around Hinagu fault zone through the 2016 Kumamoto earthquake sequence, central Kyushu, JapanAyaho Mitsuoka Abstract
14:15 - 14:30 SCG57-27Transient Deformation Following the 2016 Kumamoto Earthquake: Towards Building a Rheological Model of KyushuJames Daniel Paul Moore Abstract
14:30 - 14:45 SCG57-28Crustal stress accumulation and release estimated from elastic/inelastic strain analysis: the 2016 Kumamoto earthquakeAkemi Noda Abstract
14:45 - 15:00 SCG57-29The role of power-law viscoelastic flow and fault friction in post-earthquake deformation after the 2011 Tohoku-Oki earthquakeRyoichiro Agata Abstract
15:00 - 15:15 SCG57-30Nonlinear mechanical coupling between viscoelastic relaxation and deep afterslip in the post-seismic deformation of the 2011 Tohoku-oki earthquakeJun Muto Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 23 Core Time
SCG57-P01 Three-dimensional deformation of tectonic mélange indicated by slickenlines on foliation: An example from the Cretaceous Miyama Formation in the Kii Peninsula, Southwest Japan Noriaki Abe Abstract
SCG57-P02 Brittle shear zone exposed on the coast near Otachi Cape of southern part of Kumamoto Prefecture and geological structure around it Keiji Ogashiwa Abstract
SCG57-P03 reacitivation of Median Tectonic Line and alternation in sambagawa metamorphic belt in Mie prefecture Yuichi Hanada Abstract
SCG57-P04 Experimentally determined strength profile of the Median Tectonic Line fault zone Miki Takahashi Abstract
SCG57-P05 Geological structure analysis of active fault segment boundary in the southern part of the Ohchigata fault zone, central Ishikawa Prefecture,Japan Keita Takahashi Abstract
SCG57-P06 Misconstrues related to grain size reduction and exsolution/phase separation in plagioclase under lower crustal conditions Taku Matsuda Abstract
SCG57-P07 Integrated deformation scheme around the northern Izu-Bonin arc, as a "strain concentrated zone" including N-S crustal-shortening Takao Eguchi Abstract
SCG57-P08 Estimation of paleo-stress field, alteration and diagenetic environment using deformed conglomerate in trench fill sediment -As an example of Izu-Bonin arc multiple collision zone- Shun Suzuki Abstract
SCG57-P09 Post-rift, Middle Miocene stress regime of the NE Japan arc inferred from dikes and mesoscale faults in the Kakunodate area Toshiki Haji Abstract
SCG57-P10 The relation between the Vp/Vs distribution and shallow earthquake generation in the central part of the backbone range, northeastern Japan arc Sumire Maeda Abstract
SCG57-P11 Postseismic displacement field associated with the 2011 Tohoku-oki earthquake by temperature dependent viscosity model Yuval Banay Abstract
SCG57-P12 Mechanism of vertical displacement on the Northeast Japan fore-arc region through gigantic earthquake cycles Ryohei Sasajima Abstract
SCG57-P13 A resonance frequency map of Japan: Does the crust resonate? Atsuko Namiki Abstract
SCG57-P14 An estimate of the contraction rate of central Japan through the deformation of the Philippine Sea slab Yukitoshi Fukahata Abstract
SCG57-P15 Uplift and denudation history of the South Fossa Magna region revealed by low-temperature thermochronometric methods Yumi Kobayashi Abstract
SCG57-P16 Persistent and time-dependent characteristics of crustal deformation in the Central-Northern Nagano area associated with the 2011 Tohoku-oki and the 2014 Northern Nagano earthquakes Koki Kumagai Abstract
SCG57-P17 Coulomb stress change on the fault in Japan assumed from focal mechanism estimated from GNSS surface displacements of GEONET Masayuki Yamanaka Abstract
SCG57-P18 Characteristics of the seismic gap in west part of the central Kyushu, Japan Yuhei Yuasa Abstract
SCG57-P19 Detailed hypocenter distribution and fault structure in the 2017 M 5.3 Kagoshima Bay earthquake sequence Yoshiaki Matsumoto Abstract
SCG57-P20 Characteristics of focal mechanism solution of the earthquakes in the source region of the 2000 Western Tottori Earthquake based on "0.1 Manten" hyper dense seismic observation Yuto Hayashida Abstract
SCG57-P21 Precise hypocenters determined by the "0.1 Manten" hyper dense seismic network: Implication of faulting structure linked to geological observation Aitaro Kato Abstract
SCG57-P22 Fault development process and paleostress fields in the 2000 Western Tottori Earthquake Hideto Uchida Abstract
SCG57-P23 Construction of a dynamic fault model of the 2016 Tottoriken-chubu earthquake based on kinematic source inversion Keisuke Sato Abstract
SCG57-P24 Three dimensional S-wave velocity structure near the fault zones of the 2000 western Tottori earthquake using surface wave tomography Yudai Suemoto Abstract
SCG57-P25 Spaciotemporal Stress Change during the 2016 Mw 7.8 Kaikoura earthquake, New Zealand Tomomi Okada Abstract
SCG57-P26 P-wave anisotropic tomography of the Alps Dapeng Zhao Abstract
SCG57-P27 Change of pore connectivity in granular materials under confining pressures MAREMICHI ABE Abstract
SCG57-P28 A new apparatus for measuring elastic wave velocity, electrical conductivity and permeability of fluid-saturated rocks at various confining and pore-fluid pressures Katazakai Haruka Abstract
SCG57-P29 Simultaneous measurements of elastic wave velocity and electrical conductivity in brine-saturated rocks under confining pressures Aya Konno Abstract
SCG57-P30 Percolation of cracks in annealed alumina polycrystalline aggregates Yohei Kaiwa Abstract
SCG57-P31 Elastic wave velocity change caused lawsonite decomposition in blueschist at 1.0GPa and up to 550℃ Hayate Sakuragi Abstract
SCG57-P32 Ultrasonic velocity measurements of plycrystalline clinopyroxene under high P-T conditions Yumiko Tsubokawa Abstract