S021
Why do we Hear Silent Slip? Towards an Integrated Understanding of Slow Slip and its Seismic Manifestation
Session ID#: 247965
Session Description:
Slow fault slip plays a fundamental role in releasing tectonic stress and modulating seismic hazard across various tectonic settings, including subduction zones, transform boundaries, continental fault systems and collision margins. Decades of observations have shown that slow slip is often associated with seismic moment release (low-frequency earthquakes, tectonic tremor, regular earthquakes), outlining a continuum of moment release, from slow, distributed to seismically-observable fast, localized slip acceleration. However, these slow-and-fast slip components vary across regions, suggesting that structural heterogeneities may underpin its intriguing complexity.This session aims to explore how and why slow slip becomes seismic, to improve our understanding of the dynamics of moment release in slow-slip-prone areas. We welcome contributions building towards a comprehensive understanding of slow-slip spatiotemporal variability and interactions with seismic events, employing geodetic and seismic data, geological records, laboratory experiments and modeling, as well as emerging technologies such as machine learning and distributed acoustic sensing (DAS).
Co-Sponsor(s):
Index Terms:
1207 Transient deformation [GEODESY AND GRAVITY]
1242 Seismic cycle related deformations [GEODESY AND GRAVITY]
7215 Earthquake source observations [SEISMOLOGY]
7230 Seismicity and tectonics [SEISMOLOGY]
Primary Convener: Giuseppe Costantino, École Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Paris, France
Conveners: Kate Huihsuan Chen, Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan, Louise Maubant, Earthquake Research Institute, University of Tokyo, Tokyo, Japan and Gaspard Farge, University of California Santa Cruz, Santa Cruz, United States
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Giuseppe Volpe1, Jacopo Taddeucci2, Chris Marone3, Massimo Cocco4, Cristiano Collettini1 and Giacomo Pozzi5, (1)Sapienza University of Rome, Rome, Italy, (2)Istituto Nazionale di Geofisica e Vulcanologia, Sezione di Roma 1, Roma, Italy, (3)Pennsylvania State University, Department of Geosciences, University Park, United States, (4)Istituto Nazionale di Geofisica e Vulcanologia, Rome, Italy, (5)University of Padua, Padua, Italy
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Wei Peng1, Kate Huihsuan Chen1, Roland Bürgmann2, Ya-Ju Hsu3 and Yan-Hong Chen3, (1)Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan, (2)University of California Berkeley, Earth and Planetary Science, Berkeley, United States, (3)Institute of Earth Sciences, Academia Sinica, Taipei, Taiwan
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Tremorless Slow Slip in Alaska: Insights From Observations and Modeling (1973844)
Eva Marie Golos, University of Wisconsin Madison, Geoscience, Madison, United States, Eryck Ochoa, University of Wisconsin Madison, Geoscience, Madison, WI, United States, Marine Denolle, University of Washington Seattle Campus, Department of Earth and Space Sciences, Seattle, United States and Bradley Paul Lipovsky, University of Washington, Department of Earth and Space Sciences, Seattle, United States
Depth-Dependent Controls on Aseismic Slip in the Collision Zone of Taiwan (1995523)
Kate Huihsuan Chen1, Wei Peng2, Yi-Chu Hua3, Yuan-Jin Hsiao1, Satoshi Ide4 and Kostas Konstantinou5, (1)National Taiwan Normal University, Department of Earth Sciences, Taipei, Taiwan, (2)Tohoku University, Sendai, Japan, (3)Department of Earth Sciences, National Taiwan Normal University, Taipei, Taiwan, (4)The University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan, (5)National Central University, Dept. of Earth Sciences, Taoyuan, Taiwan
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Alexis Sáez, California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, Aitaro Kato, University of Tokyo, Bunkyo-ku, Japan and Dmitry Garagash, Dalhousie University, Department of Civil and Resource Engineering, Halifax, NS, Canada
