JpGU Meeting 2019
Session outline| Solid Earth Sciences (S) | ||
|---|---|---|
| Session Sub-category | Complex & General(CG) | |
| Session ID | S-CG48 | |
| Title | Science of slow earthquakes: Toward unified understandings of whole earthquake process | |
| Short Title | Science of slow earthquakes | |
| Main Convener | Name | Satoshi Ide |
| Affiliation | Department of Earth an Planetary Science, University of Tokyo | |
| Co-Convener 1 | Name | Hitoshi Hirose |
| Affiliation | Research Center for Urban Safety and Security, Kobe University | |
| Co-Convener 2 | Name | Kohtaro Ujiie |
| Affiliation | Graduate School of Life and Environmental Sciences, University of Tsukuba | |
| Co-Convener 3 | Name | Takahiro Hatano |
| Affiliation | Earthquake Research Institute, University of Tokyo | |
| Session Language | E | |
| Scope | Accumulating observational studies on various types of slow deformation events, such as tectonic tremors, very low frequency events, and slow slip events, portrays some universal characteristics in generally complex behavior, including interaction among events and influence by various outer loadings. Some of these phenomena seem to have causal relation with the occurrence of very large earthquakes. A unified understanding of these slow and fast earthquake processes requires an approach integrating geophysics, seismology, geodesy, geology, and non-equilibrium statistical physics. We welcome presentations based on, but not limited to, geophysical observation, data analysis, analytical theory, numerical simulation, field study, and laboratory experiments. | |
| Presentation Format | Oral and Poster presentation | |
| Joint Session with | AGU,EGU,AOGS | |
| Invited Authors | Bertrand Rouet-Leduc (Los Alamos National Laboratory) Alexandre Schubnel (CNRS) Paul A Selvadurai (ETH Zurich) Emily Warren-Smith (GNS Science) Jun'ichi Fukuda (Earthquake Research Institute, University of Tokyo) | |
| Time | Presentation No | Title | Presenter | Abstract |
|---|---|---|---|---|
| Oral Presentation May 29 AM1 | ||||
| 09:00 - 09:30 | SCG48-01 | Variability of the space-time evolution of slow slip events off the Boso Peninsula, central Japan, from 1996 to 2018 | Jun'ichi Fukuda | |
| 09:30 - 09:45 | SCG48-02 | Cumulative slip distribution of short-term slow slip events in the western Shikoku area, southwest Japan based on tilt change measurements | Hitoshi Hirose | |
| 09:45 - 10:00 | SCG48-03 | Shallow undersea SSEs off the western Japan monitored by the GNSS-A | Yusuke Yokota | |
| 10:00 - 10:15 | SCG48-04 | Co- and Post-seismic deformation due to the 2016 moderate earthquake sequence at the Chaman fault | Fumiko Matsumoto | |
| 10:15 - 10:30 | SCG48-05 | An attempt to quantify transient fluid flow during slow slip event using GNSS and gravity data-1st report | Yusuke Umemiya | |
| Oral Presentation May 29 PM1 | ||||
| 13:45 - 14:00 | SCG48-06 | Interplay between long-term SSE and ETS facilitated by different underground environment | Kazushige Obara | |
| 14:00 - 14:15 | SCG48-07 | Determination of sVLFE epicenters around the subducted Kyushu-Palau Ridge from coda interferometry | Takashi Tonegawa | |
| 14:15 - 14:30 | SCG48-08 | Detection of slow earthquakes in the microseism frequency band (0.05–1.0 Hz) by large-scale waveform stacking | Koki Masuda | |
| 14:30 - 14:45 | SCG48-09 | Source characteristics of low-frequency earthquakes in Nankai subduction zone inferred from analysis of large event dataset | Natalia Poiata | |
| 14:45 - 15:00 | SCG48-10 | High-frequency radiation prior to semi-volcanic low-frequency earthquake in Eastern Shimane, SW Japan, illuminated by “0.1 manten” Hyper Dense Seismic Observation | Aitaro Kato | |
| 15:00 - 15:15 | SCG48-11 | Variation of Focal Mechanisms of Low Frequency Earthquakes in Parkfield | Miki Aso | |
| Oral Presentation May 29 PM2 | ||||
| 15:30 - 16:00 | SCG48-12 | Mapping seismic data to slow slip using machine learning | Bertrand Rouet-Leduc | |
| 16:00 - 16:15 | SCG48-13 | Revealing the slow earthquake activity in the Japan Trench and its relation to the 2011 Tohoku-Oki earthquake | Tomoaki Nishikawa | |
| 16:15 - 16:30 | SCG48-14 | Tremor and slow slip associated with afterslip of the 2011 Tohoku earthquake | Kazuaki Ohta | |
| 16:30 - 16:45 | SCG48-15 | High definition imaging of the Japan Trench by OBS Array of Arrays: Does shallow tectonic tremor occur in the plate interface? | Shukei Ohyanagi | |
| 16:45 - 17:00 | SCG48-16 | The activity of small repeating earthquakes after the 2011 Tohoku-oki earthquake: an examination based on the S-net and land networks | Naoki Uchida | |
| Oral Presentation May 30 AM1 | ||||
| 09:00 - 09:15 | SCG48-17 | Three-dimensional seismic structure of the shallow plate boundary in the northern Hikurangi margin from NZ3D OBS data | Ryuta Arai | |
| 09:15 - 09:45 | SCG48-18 | Using earthquake focal mechanisms to investigate slow slip driving forces in the northern Hikurangi | Emily Warren-Smith | |
| 09:45 - 10:00 | SCG48-19 | Seismological structural changes around source regions of slow earthquakes in Nankai subduction zone inferred from broadband receiver functions | Yasunori Sawaki | |
| 10:00 - 10:15 | SCG48-20 | Slip tendency maps for compressional and extensional stress states on a shallow decollement in Nankai Trough | Yoshitaka Hashimoto | |
| 10:15 - 10:30 | SCG48-21 | Permeability and its anisotropy on creeping Chihshang Fault, Taiwan | Tyas Dwi Aprilniadi | |
| Oral Presentation May 30 AM2 | ||||
| 10:45 - 11:00 | SCG48-22 | Short fluid infiltration events in the low permeable metamorphic rocks triggered by crustal fracturing at amphibolite–granulite facies conditions | Diana Mindaleva | |
| 11:00 - 11:15 | SCG48-23 | Generation of high fluid pressure at the base of the shallow mantle wedge—evidence from serpentinite of the Sanbagawa belt, SW Japan | Simon Richard Wallis | |
| 11:15 - 11:30 | SCG48-24 | Overpressured subduction plate boundary caused by infiltration of mantle-derived fluids: Evidence from helium isotope analysis on veins in subduction mélange | Naoki Nishiyama | |
| 11:30 - 11:45 | SCG48-25 | Geological and rheological conditions of subduction plate boundary between the seismogenic zone and the ETS zone in warm-slab environments | Kohtaro Ujiie | |
| 11:45 - 12:00 | SCG48-26 | Temperature variation in tectonic mélanges of the Shimanto Belt, SW Japan | Tsai-Wei Chen | |
| 12:00 - 12:15 | SCG48-27 | Frictional properties of opal gouge at low-temperature hydrothermal conditions and their implications for seismogenic faulting along subduction-zone megathrusts | Kyuichi Kanagawa | |
| Oral Presentation May 30 PM1 | ||||
| 13:45 - 14:00 | SCG48-28 | Rate and State Dependent Friction Law and Static Friction Force | Hiroshi Matsukawa | |
| 14:00 - 14:30 | SCG48-29 | Stable sliding, slow and silent slip events and laboratory earthquakes across the brittle ductile transition | Alexandre Schubnel | |
| 14:30 - 14:45 | SCG48-30 | Dramatic velocity weakening of dry quartz friction at relatively slow slip velocities | Akito Tsutsumi | |
| 14:45 - 15:00 | SCG48-31 | Rupture nucleation processes accompanying tremor and slow slip in gel friction experiments | Tetsuo Yamaguchi | |
| 15:00 - 15:15 | SCG48-32 | Solution Orbit for k and epsilon Model for Turbulent Flow in Porous Media | Takehito Suzuki | |
| Oral Presentation May 30 PM2 | ||||
| 15:30 - 16:00 | SCG48-33 | Modelling precursory seismicity in the laboratory using a roughness derived rate and state friction model | Paul A Selvadurai | |
| 16:00 - 16:15 | SCG48-34 | Exponential dependence on perturbation stress of earthquake nucleation | Saito Takuya | |
| 16:15 - 16:30 | SCG48-35 | Stochastic modeling of slow earthquakes comparable to observations | Naofumi Aso | |
| 16:30 - 16:45 | SCG48-36 | Migration of aqueous fluid near the subducting plate interface | Manabu Morishige | |
| 16:45 - 17:00 | SCG48-37 | EnKF estimation of frictional properties and slip evolution on a LSSE fault and the changing slip deficit rate on a megathrust fault | Kazuro Hirahara | |
| Presentation No | Title | Presenter | Abstract |
|---|---|---|---|
| Poster Presentation May 29 AM2 | |||
| SCG48-P01 | Off the Kii Peninsula Shallow Low Frequency Earthquake in 2004 revealed by Ocean Bottom Seismometer | Koji Tamaribuchi | |
| SCG48-P02 | The development of pressure vessel on gouges for rock deformation at seismic rates under water-saturated conditions | Wei-Ting Lin | |
| SCG48-P03 | Spatial variations of shallow very low-frequency earthquake activity along the Nankai Trough based on CMT inversion using the 3D heterogeneous model | Shunsuke Takemura | |
| SCG48-P04 | Evaluation of Magnitude and Characteristics of Seismicity of Low Frequency Earthquakes in Parkfield | Miki Aso | |
| SCG48-P05 | Tectonic tremor catalog in the Tohoku-Hokkaido-Oki region using S-net | Satoshi Ide | |
| SCG48-P06 | Spontaneous Slow Slip and Runaway Slip in Laboratory | Miki Takahashi | |
| SCG48-P07 | Hydration and amorphization of quartz rocks during high-velocity frictional sliding: An examination of fault gouge from friction experiments of synthetic quartz | Yuko Onoe | |
| SCG48-P08 | Constraining S Wave Velocity of the Source Region of Shallow Very Low-Frequency Earthquakes | Takeshi Akuhara | |
| SCG48-P09 | Quantitative relationship between aseismic slip propagation speed and frictional properties | Keisuke Ariyoshi | |
| SCG48-P10 | Comprehensive detection of very low frequency earthquakes off the Pacific coasts of Hokkaido and Tohoku, northeastern Japan | Satoru Baba | |
| SCG48-P11 | Spatio-temporal evolution of long- and short-term slow slip events in the Tokai region, central Japan estimated from a very dense GNSS network, during 1997-2017 | Hiromu Sakaue | |
| SCG48-P12 | Broadband excitation of acoustic emission in granular stick-slip : experiments and spectral analyses | Hidekazu Fukumizu | |
| SCG48-P13 | Episodic tremor and slip silently invades strongly locked megathrust in the Nankai Trough | Masayuki Kano | |
| SCG48-P14 | Spatial distribution of the electrical resistivity beneath western part of Shikoku Island where long-term SSE events have repeatedly occurred | Makoto Uyeshima | |
| SCG48-P15 | Variations of scaling relationships for shallow tremor observed along the Nankai trough | Masaru Nakano | |
| SCG48-P16 | Low-frequency earthquakes triggered by teleseismic surface waves by Ryukyu subduction zone. | Mamoru Nakamura | |
| SCG48-P17 | Detection of small surface displacement accompanying deep low-frequency tremor in Shikoku region, southwest Japan | Yutaro Okada | |
| SCG48-P18 | Long-term temporal change in crustal resistivity beneath western Shikoku | Futoshi Yamashita | |
| SCG48-P19 | Slow decay of postseismic deformation compared with aftershocks following the 2011 Tohoku-oki Earthquake | Yuta Mitsui | |
| SCG48-P20 | Serpentinite dehydration in subduction shear zones formed at source depths of slow earthquakes | Yasushi Mori | |
| SCG48-P21 | Earthquake swarms following very low-frequency earthquakes in the central Ryukyu Trench | Mamoru Nakamura | |
| SCG48-P22 | Seismic imaging in the central Nankai trough, off Shionomisaki to Kii channel | Yasuyuki Nakamura | |
| SCG48-P23 | Attempt to Detect Intra-plate SSEs Based on F3 Solution of GEONET | Yusaku Tanaka | |
| SCG48-P24 | A new hydrothermal, low to high speed rotary-shearing apparatus: Reproduction of slow/megathrust earthquakes in laboratory | Takehiro Hirose | |
| SCG48-P25 | Very low-frequency earthquakes in western Shikoku remotely triggered by the 2016 Mw5.9 off-Kii Peninsula earthquake | Masatoshi Miyazawa | |
| SCG48-P26 | Underground structure around source region of slow earthquakes in western Shikoku obtained by receiver function analysis | Kazushige Obara | |
| SCG48-P27 | Hypocenter determination of deep low frequency tremors beneath the Kii Peninsula by backprojection of seismic array data | Kodai Sagae | |
| SCG48-P28 | Triggered tremors and stress perturbations due to surface waves | Ryohei Ikeda | |
| SCG48-P29 | Numerical modeling of long- and shallow slow slip events including shallow region in Hyuganada and western Nankai, Japan | Takanori Matsuzawa | |
| SCG48-P30 | Further evidence for the influence of a subducting-ridge on the spatial strain accumulation and release pattern in the shallow eastern Nankai Trough, based on VLFE distribution | Akiko Toh | |
| SCG48-P31 | Evidence for semi-brittle flow in mantle-wedge serpentinites under high pore fluid pressure and their implications for deep low frequency earthquakes | Ken-ichi Hirauchi | |
| SCG48-P32 | Spatial distribution of slow slip events off the Boso peninsula from 1996 to 2018 under sparsity constraints | Ryoko Nakata | |
| SCG48-P33 | Marine electromagnetic observations around a slow earthquake region in the western Nankai trough | Hiroshi Ichihara | |
| SCG48-P34 | Dynamics of precipitating injection fronts inside of structured medium | Yutaka Sumino | |
| SCG48-P35 | Permeability changes of simulated low permeable fault rocks induced by intermediate velocity friction test | Wataru Tanikawa | |
| SCG48-P36 | Modified relation between the coupling and tremor rates around the Shikoku region | Tadafumi Ochi | |
| SCG48-P37 | Spatiotemporal distribution of regular and very low-frequency earthquakes in the northern part of the Ryukyu subduction zone | Youichi Asano | |
| SCG48-P38 | Possible tectonic tremor activities near the VLFE epicenters in the Sanriku-Oki region in 2011 | Hidenobu Takahashi | |
| SCG48-P39 | Heterogeneous structure around a region of slow earthquake activity off Ibaraki prefecture along the Japan Trench | Kimihiro Mochizuki | |
| SCG48-P40 | Shallow low-frequency tremor triggered by nearby moderate earthquakes off Sanriku | Sachiko Tanaka | |
| SCG48-P41 | Slow slip events in the Bungo Channel over 15 years as inferred from GNSS data (1996-2011) | SHINICHI MIYAZAKI | |
| SCG48-P42 | Investigations of sensor orientation and a possibility of detecting crustal deformation based on accelerometer records of S-net | Ryota Takagi | |
| SCG48-P43 | Spatiotemporal variation of released seismic energy from shallow low-frequency tremor in Hyuga-nada, revealed by ocean bottom seismological observation | Yusuke Yamashita | |
| SCG48-P44 | Unified description of fast and slow earthquakes using velocity strengthening patches | So Ozawa | |
| SCG48-P45 | The b-value of the earthquake swarm activities accompanied by the Boso slow slip events | Yuki Noda | |
| SCG48-P46 | Three-dimensional thermal modeling associated with subduction of the Philippine Sea plate at the Ryukyu Trench, and its relation to the occurrence of interplate seismic events | Nobuaki Suenaga | |