S31A:
Advances in Understanding Slow Slip and Transitional Regions I Posters


Session ID#: 8822

Session Description:
Slow, aseismic slip provides insight into areas of faults where frictional properties transition from unstable stick-slip behavior to stable sliding. Yet our current understanding of the mechanics of slow slip events cannot explain either their broad diversity, both temporal, ranging from days to years, and spatial, or their implications for earthquake hazards. Additionally, slow slip events often exhibit complex interactions with tectonic tremor or earthquake swarms. Slow slip events also load their surrounding environment, including locked seismic faults, and recent evidence suggests that some large earthquakes were preceded by slow slip signals, indicating possible forecasting applications. This session welcomes studies of slow slip observations, including interactions between aseismic slip, tremor, and earthquakes. We also welcome studies of the mechanical properties or physics of slow slip areas, including modeling and laboratory work. In addition, studies relating slow slip processes to seismic hazards are welcomed.
Primary Convener:  Noel M Bartlow Jackson, University of California San Diego, La Jolla, United States
Conveners:  Lucile Bruhat, Ecole Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Paris, France, David P Bekaert, Jet Propulsion Laboratory, Pasadena, United States and Heidi Houston, University of Washington, Seattle, WA, United States
Chairs:  Heidi Houston, Applied Physics Laboratory University of Washington, Seattle, WA, United States and Andreas P Mavrommatis, Stanford University, Geophysics, Stanford, CA, United States
OSPA Liaison:  Heidi Houston, Applied Physics Laboratory University of Washington, Seattle, WA, United States
Co-Organized with:
Seismology, Geodesy, and Tectonophysics

Cross-Listed:
  • G - Geodesy
  • MR - Mineral and Rock Physics
  • T - Tectonophysics
Index Terms:

1207 Transient deformation [GEODESY AND GRAVITY]
7230 Seismicity and tectonics [SEISMOLOGY]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

Continental subduction induced tremor activity? (68730)
Hsin-Ju Tai1, Kate Huihsuan Huihsuan Chen1, Satoshi Ide2, Maxime Mouyen3 and Timothy B Byrne4, (1)Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan, (2)The University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan, (3)Academia Sinica, Taipei, Taiwan, (4)University of Connecticut, Groton, CT, United States
Relating Transient Seismicity to Episodes of Deep Creep at Parkfield CA (67956)
Charles G Sammis1, Rachel C Lippoldt1, Stewart W Smith2 and Robert M Nadeau3, (1)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (2)Retired, Department of Earth and Space Sciences, Universityof Washington, Washington, DC, United States, (3)University of California Berkeley, Berkeley, CA, United States
TremorScope: A Tool to Image the Deep Workings of the San Andreas Fault near Cholame, CA (68649)
Margaret Hellweg1, Roland Burgmann2, Taka'aki Taira3, Robert M Nadeau3, Douglas Scott Dreger3 and Richard M Allen4, (1)Berkeley Seismological Lab, Berkeley, CA, United States, (2)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, United States, (3)University of California Berkeley, Berkeley, CA, United States, (4)University of California Berkeley, Department of Earth and Planetary Science, Berkeley, CA, United States
Toward Expanding Tremor Observations in the Northern San Andreas Fault System in the 1990s (75396)
Landon Gray Damiao1, Douglas Scott Dreger1, Robert M Nadeau1, Taka'aki Taira1, Aurélie Guilhem Trilla2, Brenda Luna3 and Haijiang Zhang4, (1)University of California Berkeley, Berkeley, CA, United States, (2)CEA/DAM/DIF, F-91297 Arpajon, France, (3)UC Berkeley Seismological Laboratory, Berkeley, CA, United States, (4)University of Science and Technology of China, Laboratory of Seismology and Physics of Earth’s Interior, Hefei, China
Viscous Moment, Mechanism of Slow Slip, and Subduction Megathrust Viscosity (73301)
Ake Fagereng, Cardiff University, Cardiff, CF24, United Kingdom
Experimental demonstration of a semi-brittle origin for crustal strain transients (58630)
Jacqueline E Reber, Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States, Yanhui Suo, Ocean University of China, Qingdao, China and Nicholas W Hayman, Institute for Geophysics, Austin, TX, United States
Effective heterogeneity controlling premonitory slip on laboratory faults (74130)
Paul A Selvadurai, Steven Glaser and Jessica M Parker, University of California Berkeley, Berkeley, CA, United States
Laboratory Observations of the Full Spectrum of Fault Slip Modes: Implications for the Mechanics of Slow Earthquakes (76375)
John Leeman, Leeman Geophysical, Siloam Springs, United States, Demian M. Saffer, Penn State University, Department of Geosciences, University Park, PA, United States, Marco Scuderi, Penn State Univ, University Park, PA, United States and Chris Marone, Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States
‘Burst-Like’ Slow Slip Propagation on Frictional Faults in the Laboratory (74414)
Jessica M Parker, Paul A Selvadurai and Steven D Glaser, University of California Berkeley, Berkeley, CA, United States
Acoustic properties of the full spectrum of stick-slip events from stable sliding to dynamic rupture: insights on the mechanics of slow earthquakes and transient fault slip. (77303)
Marco Maria Scuderi1, Chris Marone2, Elisa Tinti1, Giuseppe Di Stefano3 and Cristiano Collettini1, (1)Sapienza University of Rome, Rome, Italy, (2)Pennsylvania State University Main Campus, Geosciences, University Park, PA, United States, (3)National Institute of Geophysics and Volcanology, Rome, Italy
Investigation of complex slow slip behavior along the Hikurangi subduction zone with earthquake simulator RSQSim (84819)
Harmony Colella1, Susan M Ellis2 and Charles A Williams Jr2, (1)Arizona State University, Tempe, AZ, United States, (2)GNS Science-Institute of Geological and Nuclear Sciences Ltd, Lower Hutt, New Zealand
Modeling long- and short-term slow slip events and their interaction with large earthquakes along the Hikurangi subduction zone (71588)
Bunichiro Shibazaki, International Institute of Seismology and Earthquake Engineering, BRI, Tsukuba, Japan, Takanori Matsuzawa, National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States and Yoshihiro Ito, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
Tectonic tremor and microseismicity associated with shallow slow slip along the northern Hikurangi Margin, New Zealand (73956)
Erin K Todd, University of Otago, Dunedin, New Zealand and Susan Y Schwartz, University of California-Santa Cruz, Santa Cruz, CA, United States
A Spatially and Temporally Continuous LFE Catalogue for the Southern Alps, New Zealand (62315)
Calum John Chamberlain, John Townend and Laura-May Baratin, Victoria University of Wellington, Wellington, New Zealand
Application of Phase-Weighted Stacking to Low-Frequency Earthquakes near the Alpine Fault, Central Southern Alps, New Zealand (66564)
Laura-May Baratin1, John Townend1, Calum John Chamberlain1 and Martha K Savage2, (1)Victoria University of Wellington, Wellington, New Zealand, (2)Victoria University of Wellington, School of Geography, Environment and Earth Sciences, Wellington, New Zealand
Episodic slow slip process in a non-planar fault model constrained by non-volcanic tremor locations along Cascadia subduction zone (67451)
Duo Li, McGill University, Montreal, QC, Canada and Yajing Liu, McGill University, Department of Earth and Planetary Sciences, Montreal, QC, Canada
Numerical Modeling of ETS in the Cascadia Region - An Application of Nankai Model - (76236)
Takanori Matsuzawa, National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan and Bunichiro Shibazaki, Building Research Institute, Ibaraki, Japan
Investigate the Spatiotemporal Relationship Between Slow Slip Transients and Tremor in Cascadia Subduction Zone (80469)
Zhen Liu1, Yuning Fu2, Yehuda Bock3, Yan Jiang4, Angelyn W Moore5, Susan E Owen6 and Sharon Kedar5, (1)Jet Propulsion Laboratory, Pasadena, CA, United States, (2)Bowling Green State University, School of Earth, Environment and Society, Bowling Green, United States, (3)Scripps Institution of Oceanography, Institute of Geophysics and Planetary Physics, La Jolla, United States, (4)Geological Survey of Canada, Sidney, Canada, (5)NASA Jet Propulsion Laboratory, Pasadena, CA, United States, (6)NASA Jet Propulsion Laboratory, Pasadena, United States
Spatial and Temporal Comparisons of Tremor and Slow Slip in Cascadia (70807)
Kelley Hall, University of Washington Seattle Campus, Seattle, WA, United States, Heidi Houston, Applied Physics Laboratory University of Washington, Seattle, WA, United States and David A Schmidt, University of Washington, Seattle, United States
Assessing the Updip Spatial Offset of Tremor and Slip during ETS Events in Cascadia (67679)
Randy D Krogstad, University of Oregon, Eugene, OR, United States and David A Schmidt, University of Washington, Seattle, United States
6.5 Years of Slow Slip Events in Cascadia: A Catalogue of SSE Surface Expressions, Interface Slip Distributions, Event Magnitudes and Relationship to Tremor. (83413)
Lada L Dimitrova, University of Texas, Austin, TX, United States, Laura M Wallace, University of Texas at Austin, Institute for Geophysics, Austin, United States, Alan John Haines, GNS Science-Institute of Geological and Nuclear Sciences Ltd, (emeritus), Lower Hutt, New Zealand and Noel M Bartlow Jackson, University of California San Diego, La Jolla, United States
Constraining Aseismic Slip in the Cascadia Subduction Zone with Plate Boundary Observatory Borehole Strainmeters in Northern Oregon (76107)
Evelyn A Roeloffs, USGS, Vancouver, WA, United States
A Study of Low-Frequency Earthquake Magnitudes in Northern Vancouver Island (71531)
Lindsay Yuling Chuang, Georgia Institute of Technology Main Campus, Earth and Atmospheric Science, Atlanta, GA, United States and Michael G Bostock, University of British Columbia, Vancouver, BC, Canada
Toward a complete catalog of Very Low Frequency Earthquakes (VLFEs) in Cascadia using a Match Filter Technique (85505)
Allie A Hutchison, ETH Zurich, Earth Sciences, Zurich, Switzerland, Abhijit Ghosh, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, CA, United States and Yoshihiro Ito, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan
Slow slip event within a gap between tremor and locked zones in the Nankai subduction zone (63960)
Ryota Takagi, Earthquake Research Institute, University of Tokyo, Tokyo, Japan, Kazushige Obara, The University of Tokyo, Earthquake Research Institute, Tokyo, Japan and Takuto Maeda, Earthquake Research Institute, The University of Tokyo, Tokyo, Japan
Conductivity structure in and around the Deep Low-Frequency Tremors generation region beneath the western part of the Kii Peninsula in Southwest Japan. (64284)
Satoshi Katakami1, Satoru Yamaguchi2, Makoto Uyeshima3, Hideki Murakami4, Tsutomu Ogawa5, Naoto Oshiman6, Ryokei Yoshimura7, Koki Aizawa8, Ichiro Shiozaki9, Takahumi Kasaya10 and Yoshihiro Ito7, (1)Graduate School of Science, Kyoto University, Kyoto, Japan, (2)Osaka City University, Osaka, Japan, (3)Earthquake Research Institute (ERI), University of Tokyo, Tokyo, Japan, (4)University of Kochi, Kochi, Japan, (5)Earthquake Research Institute, Tokyo, Japan, (6)Kyoto University, Kyoto, Japan, (7)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (8)Kyushu University, Fukuoka, Japan, (9)Tottori University, Tottori, Japan, (10)Institute for Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Estimation of fault geometry of a slow slip event off the Kii Peninsula, southwest of Japan, detected by DONET (77365)
Kensuke Suzuki1, Masaru Nakano1, Takane Hori2 and Narumi Takahashi1, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Research Institute for Marine Geodynamics, Yokohama, Japan
Long-term SSEs in the Tokai Area, Central Japan, and Their Relationships Between Released Moment and Duration (77203)
Tadafumi Ochi, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan
Detection of Seismic Anisotropy From Low-Frequency Earthquakes: Eastern Shikoku (71496)
Motoko Ishise, University of Tokyo, Bunkyo-ku, Japan and Kiwamu Nishida, Earthquake Research Institute, The University of Tokyo, Tokyo, Japan
Tidal triggering of shallow very-low-frequency earthquakes in the Ryukyu Trenc (59049)
Mamoru Nakamura and Keito Kakazu, University of the Ryukyus, Okinawa, Japan
Shallow repeating slow-slip-events along the convergent block boundary in northern Hokkaido, Japan (62201)
Shohei Ikeda1, Kosuke Heki1 and Takeshi Kimura2, (1)Hokkaido University, Sapporo, Japan, (2)NIED National Research Institute for Earth Science and Disaster Prevention, Tsukuba, Japan
Further evidence for the occurrence of tectonic tremor in the Japan Trench subduction zone (67838)
Kazuaki Ohta1, Yoshihiro Ito2, Satoshi Katakami3, Ryota Hino4, Syuichi Suzuki4 and Masanao Shinohara5, (1)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (2)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (3)Graduate School of Science, Kyoto University, Kyoto, Japan, (4)Tohoku University, Graduate School of Science, Sendai, Japan, (5)University of Tokyo, Bunkyo-ku, Japan
Long-term continuous observation of vertical gradient of water temperature on the deep seafloor (71771)
Syuichi Suzuki1, Ryota Hino1, Yoshihiro Ito2, Tatsuya Kubota3 and Daisuke Inazu4, (1)Tohoku University, Graduate School of Science, Sendai, Japan, (2)Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan, (3)National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, (4)University of Tokyo, Bunkyo-ku, Japan
A Slow Slip and Seismic Swarm Sequence in a Weakly Coupled Subduction Zone in Northern Peru (86751)
Juan Carlos Villegas Lanza1, Jean-Mathieu Nocquet2, Frederique Rolandone3, Martin Vallée4, Hernando Tavera5, Francis Bondoux6, Trong Dinh Tran2,7, Xavier Martin8 and Mohamed Chlieh9, (1)Instituto Geofísico del Perú, Unidad de Geodesia Espacial, Lima, Peru, (2)Géoazur - Université Nice Sophia Antipolis, Valbonne, France, (3)Sorbonne Universités, UPMC Université Paris 06, CNRS, ISTeP, Paris, France, (4)Université de Paris, Institut de physique du globe de Paris, Paris, France, (5)Instituto Geofísico del Perú, Lima, Peru, (6)GET Géosciences Environnement Toulouse, Observatoire Midi-Pyrénées, Toulouse, France, (7)National University of Civil Engineering, Civil Engineering, Hanoi, Vietnam, (8)Géoazur - Université Nice Sophia Antipolis, Université Côte d'Azur, IRD, CNRS, OCA, Valbonne, France, (9)Université Côte d’Azur, IRD, CNRS, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France
­Intense Microseismicity Associated with a SSE at La Plata Island in the Central Subduction Zone of Ecuador (61729)
Monica Segovia1, Yvonne Font1,2, Marc M Regnier3, Philippe Charvis4, Jean Mathieu Nocquet5, Audrey Galve6, Yann Hello7, Anthony Ogé1, Paul Jarrin8 and Mario Calixto Ruiz9, (1)GeoAzur, Valbonne, France, (2)IRD Institute for Research and Development, Marseille Cedex 02, France, (3)Géoazur - Université Côte d'Azur - IRD - CNRS - Observatoire de la côte d'Azur, Valbonne, France, (4)Géoazur - Université Côte d'Azur, IRD, CNRS, OCA, Valbonne, France, (5)Institut de Recherche pour le Développement - IRD, Valbonne, France, (6)UMPC, UNSA, CNRS, IRD, Géoazur,, Valbonne, France, (7)Géoazur - Université Nice Sophia Antipolis, Research and Development, Valbonne, France, (8)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador, (9)Escuela Politécnica Nacional, Instituto Geofísico, Quito, Ecuador
Detailed Tremor Migration Styles in Guerrero, Mexico Imaged with Cross-station Cross-correlations (73377)
Yajun Peng and Allan M Rubin, Princeton University, Princeton, NJ, United States
Hunt for Slow Slip Events Along the Sumatran Subduction Zone in a Decade of Continuous GPS Data (80483)
Lujia Feng1, Emma Hill1, Pedro Elosegui2,3, Qiang Qiu4, Iwan Hermawan1, Paramesh Banerjee4 and Kerry Sieh4, (1)Earth Observatory of Singapore, Nanyang Technological University, Singapore, Singapore, (2)CSIC, Barcelona, Spain, (3)Massachusetts Institute of Technology, Haystack Observatory, Westford, United States, (4)Nanyang Technological University, Singapore, Singapore
Slow Slip Events and rotation of the Peninsula block in Lower Cook Inlet of the Alaska-Aleutian Subduction Zone (63595)
Shanshan Li1, Jeff Freymueller1 and Robert McCaffrey2, (1)University of Alaska Fairbanks, Fairbanks, AK, United States, (2)Portland State University, Portland, OR, United States

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