Solid Earth Sciences(S)
Session Sub-categoryComplex & General
Session IDS-CG53
TitleScience of slow earthquakes: Toward unified understandings of whole earthquake process
Short TitleScience of slow earthquakes
Main ConvenerNameSatoshi Ide
AffiliationDepartment of Earth an Planetary Science, University of Tokyo
Co-Convener 1NameHitoshi Hirose
AffiliationResearch Center for Urban Safety and Security, Kobe University
Co-Convener 2NameKohtaro Ujiie
AffiliationGraduate School of Life and Environmental Sciences, University of Tsukuba
Co-Convener 3NameTakahiro Hatano
AffiliationEarthquake Research Institute, University of Tokyo
Session LanguageEE
ScopeAccumulating 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 FormatOral and Poster presentation
Joint Session withAGU, EGU
Invited Authors
  • Aaron Wech (USGS Alaska Volcano Observatory)
  • Ryoko Nakata (R and D Center for Earthquake and Tsunami, Japan Agency for Marine-Earth Science and Technology)
  • Mathilde Radiguet (University Grenoble Alpes)
  • SANDRO BENIGNO VACA (Instituto Geofísico-Escuela Politécnica Nacional, Quito, Ecuador)
  • Christopher W Johnson (Scripps Institute of Oceanography)
  • Steven A.F. Smith (Univ. of Otago)
  • Martha K Savage (Victoria Univ. of Wellington, New Zealand)
  • Yoshitaka Hashimoto (Kochi University)
Time Presentation No Title Presenter Abstract
Oral Presentation May 23 AM1
09:00 - 09:15 SCG53-01Characteristic activities style of slow earthquakes: 1.Tremor migration beyond gapsKazushige Obara Abstract
09:15 - 09:30 SCG53-02Tremor and slow slip implications for Alaska tectonicsAaron Wech Abstract
09:30 - 09:45 SCG53-03Micro Low-Frequency Tremor Activity Before the Tohoku-Oki EarthquakeSatoshi Katakami Abstract
09:45 - 10:00 SCG53-04Complex migration pattern of non-volcaninc tremor in the San Andreas Fault revealed by a mini seismic arrayShukei Ohyanagi Abstract
10:00 - 10:15 SCG53-05Amplitude evaluation of stacked waveforms of LFEs at Parkfield: Toward estimating focal mechanismsMiki Aso Abstract
10:15 - 10:30 SCG53-06Newly detected tremors in Puysegur and Malbourough fault system (New Zealand)Pierre Romanet Abstract
Oral Presentation May 23 AM2
10:45 - 11:00 SCG53-07Spatial distribution of long-term slow slip events beneath the Bungo Channel under sparsity constraints (II)Ryoko Nakata Abstract
11:00 - 11:15 SCG53-08Characteristics of seismograms of VLFEs recorded by short period OBSs in the northern Japan TrenchHidenobu Takahashi Abstract
11:15 - 11:30 SCG53-09An attempt to detect small crustal deformation caused by ETS in southwest Japan, using GNSS dataMegumi Fujita Abstract
11:30 - 11:45 SCG53-10Along-strike variation of long-term slow slip event activity in the Nankai subduction zoneRyota Takagi Abstract
11:45 - 12:00 SCG53-11Slow Slip Events and large earthquakes interactions along the Mexican subduction zone.Mathilde Radiguet Abstract
12:00 - 12:15 SCG53-12Recurrent slow slip events as a barrier to the rupture propagation of the 2016 Pedernales earthquake in the Ecuadorian marginSANDRO BENIGNO VACA Abstract
Oral Presentation May 23 PM1
13:45 - 14:00 SCG53-13Climate modulated water storage, the deformation, and California earthquakesChristopher W Johnson Abstract
14:00 - 14:15 SCG53-14Can deformation rates across the Carrizo Plain segment of the San Andreas Fault be explained by vertical migration of the locked-to-creeping transition?Lucile Bruhat Abstract
14:15 - 14:30 SCG53-15Temporal gravity anomalies observed in the Tokai area and a possible relationship with slow slipsYoshiyuki Tanaka Abstract
14:30 - 14:45 SCG53-16Stress Release and Rebuilding Processes of Mega-thrust Earthquake and Periodic Slowslip Detected by Focal Mechanism PatternsYuji Yagi Abstract
14:45 - 15:00 SCG53-17EnKF estimation of frictional properties and slip evolution on a LSSE fault -numerical experiments-Kazuro Hirahara Abstract
15:00 - 15:15 SCG53-18Towards a Robust Slip Inversion Through Bootstrapping: Application of 4 Very Large EarthquakesTa-Wei Chang Abstract
Oral Presentation May 24 AM2
10:45 - 11:00 SCG53-19Dynamic earthquake rupture preserved in a creeping serpentinite shear zoneSteven A.F. Smith Abstract
11:00 - 11:15 SCG53-20Episodic tremor and slip explained by crack-seal veins and viscous shear in subduction mélangesKohtaro Ujiie Abstract
11:15 - 11:30 SCG53-21Mantle-derived fluid migration along subduction plate boundary: Constraints from helium isotope analysis of shear veins in the subduction mélangeNaoki Nishiyama Abstract
11:30 - 11:45 SCG53-22Models of the Subduction Interface Motivated by Field ObservationsDonald M Fisher Abstract
11:45 - 12:00 SCG53-23Factors affecting frictional velocity dependence of a plate-boundary fault: The Costa Rica subduction zone.Akito Tsutsumi Abstract
12:00 - 12:15 SCG53-24Rheology of the fluid-overpressured quartz shear zone at the brittle-plastic transition: effects of the aqueous fluid and porosityKeishi Okazaki Abstract
Oral Presentation May 24 PM1
13:45 - 14:00 SCG53-25On 3-D resistivity structure obtained from the Network-MT survey in the SW part of Shikoku-Island, SW JapanMakoto Uyeshima Abstract
14:00 - 14:15 SCG53-26Seismic velocity and anisotropy in a slow slip region of the Hikurangi Margin, New Zealand from ocean bottom seismometersMartha K Savage Abstract
14:15 - 14:30 SCG53-27Preliminary results of lithostratigraphy in IODP Expedition 375: Hikurangi subduction margin coring and observatoriesYoshitaka Hashimoto Abstract
14:30 - 14:45 SCG53-28Mixing and reaction of rocks facilitate fluid flow along the forearc slab-mantle interfaceYasushi Mori Abstract
14:45 - 15:00 SCG53-29Metasomatic reaction and localization of low-angle thrust-sense viscous shear recorded in subduction mélanges exhumed from source depths of slow earthquakesKazuya Noro Abstract
15:00 - 15:15 SCG53-30Physical and geological entity of brittle-ductile heterogeneous fault zones at transition depthRyosuke Ando Abstract
Oral Presentation May 24 PM2
15:30 - 15:45 SCG53-31Sensitivity of the Final Slip Amount to the Initial Slip Velocity Derived from the Universal LawTakehito Suzuki Abstract
15:45 - 16:00 SCG53-32Tidal effects on seismic activity and rupture nucleation processTakahiro Hatano Abstract
16:00 - 16:15 SCG53-33Refined rate and state friction law and its application to simulated earthquake nucleationDaisuke Sato Abstract
16:15 - 16:30 SCG53-34Slip behaviors of the frictionally heterogeneous fault in the pre- and post-seismic periodSuguru Yabe Abstract
16:30 - 16:45 SCG53-35New dynamic model of slow earthquakes considering stochasticity in rupture simulationNaofumi Aso Abstract
16:45 - 17:00 SCG53-36A Two-dimensional Probabilistic Cell-Automaton Model for Slow EarthquakesSatoshi Ide Abstract
Presentation No Title Presenter Abstract
Poster Presentation May 24 Core Time
SCG53-P01 Development of Slow Earthquake Database Masayuki Kano Abstract
SCG53-P02 Strength of tremor patches along deep transition zone of a megathrust Masayuki Kano Abstract
SCG53-P03 Event size distribution of shallow very-low-frequency earthquakes off the Kii Peninsula Masaru Nakano Abstract
SCG53-P04 Seasonal and long-term variation in the tidal response of very low frequency earthquakes in the Ryukyu Trench Mamoru Nakamura Abstract
SCG53-P05 Shallow very-low-frequency earthquake activity in the Hyuga-nada region revealed by long-term ocean bottom seismological observation Yusuke Yamashita Abstract
SCG53-P06 Triggered tremors and stress perturbations due to surface wave passages Ryohei Ikeda Abstract
SCG53-P07 Activity of shallow low-frequency tremor in the Hyuga-nada, revealed by ocean bottom seismological observation Saki Watanabe Abstract
SCG53-P08 Estimating source parameters of tectonic tremors using particle motions of continuous seismic records Kazuaki Ohta Abstract
SCG53-P09 Toward the comprehensive detection of shallow very low frequency earthquakes off the Pacific coast of Tohoku, Japan Satoru Baba Abstract
SCG53-P10 Spatiotemporal variations of spectral characteristics of deep low-frequency earthquakes in northeastern Japan Masahiro Kosuga Abstract
SCG53-P11 Depth-dependent periodic change in the interplate locking in SW Japan inferred from spatial gradient of displacement rate field Takeshi Iinuma Abstract
SCG53-P12 Spatio-temporal evolution of long-term and short-term slow slip events in the Tokai region, central Japan estimated from a very dense GNSS network, during 1996-2016 Hiromu Sakaue Abstract
SCG53-P13 Slip inversion based on tilt change data for short-term slow slip events in western Shikoku, southwest Japan Wakako Tamura Abstract
SCG53-P14 A comparison of the stress evolutions due to Boso slow slip events and the accompanying earthquake swarms Hitoshi Hirose Abstract
SCG53-P15 Repeating earthquakes and interplate coupling along the North Anatolian Fault Naoki Uchida Abstract
SCG53-P16 Electrical resistivity structure around the long-term Slow Slip Events beneath the Bungo Channel region, southwest Japan, by three-dimensional wideband magnetotelluric inversion Ryokei Yoshimura Abstract
SCG53-P17 Seismic anisotropy monitoring for characterizing low-frequency tremor activities Motoko Ishise Abstract
SCG53-P18 Estimation of pore fluid overpressures for tensile cracking at depth of shallow slow earthquakes Makoto Otsubo Abstract
SCG53-P19 Grain boundary sliding and antigorite CPO formation in antigorite schist from the Sanbagawa belt, SW Japan: implications for the slab–mantle boundary rheology Simon Richard Wallis Abstract
SCG53-P20 Moderate-velocity slips in plate subduction zone: implications for Tsunami Earthquake Yohei Hamada Abstract
SCG53-P21 Stress and Acoustic Emission measurements in granular stick-slip Hidekazu Fukumizu Abstract
SCG53-P22 Are slow earthquakes spatio-temporal chaos?-Reproducing slow earthquakes as the Benjamin-Feir instability Yutaka Sumino Abstract
SCG53-P23 Pattern formation of injected fluid into a quasi two-dimensional cell filled with viscoelastic fluid Kiwamu Yoshii Abstract
SCG53-P24 Quantitative relationship between slow slip propagation speed and frictional properties Keisuke Ariyoshi Abstract
SCG53-P25 Modeling slow-slip events and their triggering by the Kaikoura earthquake along the Hikurangi subduction plate interface Bunichiro Shibazaki Abstract
SCG53-P26 Fast and slow slip events emerge due to fault geometrical complexity Pierre Romanet Abstract
SCG53-P27 Nucleation Process of the 2011 Mw 6.2 Northern Nagano earthquake Yuji Yagi Abstract