T52B:
Seismotectonic Processes Along Active Latin American Margins: Earthquakes and Aseismic Signatures I


Submit an Abstract to this Session


Session ID#: 57189

Session Description:
Latin American margins are among the most active worldwide, providing natural laboratories to study fast and slow deformation processes. During recent years, the increased density of seismological and geodetic instruments has allowed capturing large magnitude earthquakes and aseismic deformation across many different temporal and spatial scales. These new data provoke new questions related to how the fast and slow slip transients interact over the long-term deformation of the margin.

 

We are looking for contributions related to studies about seismo-tectonic processes along Latin American margins, in particular on the following subjects: (1) analysis of earthquakes occurred during the recent years, (2) interplay between aseismic slip and seismicity (3) relationship between deformation process and earthquake cycle, and (4) effects of subduction processes on crustal faults. Observational studies, as well as insights from mechanical and numerical modeling, are encouraged.

Primary Convener:  Jorge Jara, Ecole Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Laboratoire de Géologie, Paris, France
Conveners:  Mathilde Radiguet, ISTerre Institute of Earth Sciences, Grenoble, France; University Grenoble Alpes, France, William B. Frank, University of Southern California, Los Angeles, United States and Sergio Ruiz, Universidad de Chile, Departamento de Geofísica, Facultad de Ciencias Físicas y Matemáticas, Santiago, Chile
Primary Liaison:  Jorge Jara, Ecole Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Laboratoire de Géologie, Paris, France
Chairs:  Jorge Jara, Ecole Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Laboratoire de Géologie, Paris, France, Mathilde Radiguet, ISTerre Institute of Earth Sciences, Grenoble, France; University Grenoble Alpes, France and Sergio Ruiz, Universidad de Chile, Departamento de Geofísica, Facultad de Ciencias Físicas y Matemáticas, Santiago, Chile
OSPA Liaison:  William B. Frank, University of Southern California, Los Angeles, United States
Co-Organized with:
Tectonophysics, and Seismology

Proposed Co-Organized Session with:
  • G - Geodesy
  • S - Seismology
Index Terms:

1207 Transient deformation [GEODESY AND GRAVITY]
7215 Earthquake source observations [SEISMOLOGY]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

A Tale of Three Earthquakes: Slip History and Seismic – Aseismic Interaction Along the Mexico Subduction Zone from 2012 to the 2018 Mw 7.2 Pinotepa Earthquake (466800)
Shannon E Graham, Boston College, Chestnut Hill, MA, United States, Charles DeMets, University of Wisconsin Madison, Geoscience, Madison, WI, United States, Enrique Cabral-Cano, UNAM National Autonomous University of Mexico, Departamento de Geomagnetismo y Exploración, Instituto de Geofísica, Mexico City, Mexico and Luis Salazar-Tlaczani, Instituto de Geofísica, Universidad Nacional Autónoma de México, Departamento de Geomagnetismo y Exploración, Mexico D.F., Mexico
Single station tectonic tremor detection using the Mexican National Seismological Service permanent stations (442803)
Allen L Husker1, William B. Frank2, Guillermo Gonzalez1, Leticia Avila1,3, Vladimir Kostoglodov1 and Ekaterina Kazachkina1, (1)Universidad Nacional Autonoma de Mexico, Mexico City, Mexico, (2)University of Southern California, Los Angeles, United States, (3)National Autonomous University of Mexico, Mexico City, Mexico
Investigating Apparent Anticorrelation of Repeating Aftershocks and Afterslip in Nicoya, Costa Rica (376452)
Tiegan E Hobbs1, Dongdong Yao1, Andrew Vern Newman2, Zhigang Peng3 and Marino Protti4, (1)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (2)Georgia Institute of Technology, Atlanta, United States, (3)Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, United States, (4)Observatorio Vulcanológico y Sismológico de Costa Rica, Heredia, Costa Rica
Aftershocks of the 2016 Mw 7.8 Ecuador Earthquake Reveal Earthquake Cycle is Controlled by Long-Lived Structures (431762)
Hans Agurto-Detzel1, Yvonne Font2, Philippe Charvis3, Alexandra Alvarado4, David Ambrois2, Susan L Beck5, Mariah Chambers Hoskins6, Sergio Leon Rios7,8, Lynner Colton9, Anne Meltzer10, Jean-Mathieu Nocquet11, Marc M Regnier12, Andreas Rietbrock7,13, Frederique Rolandone14, Mario Calixto Ruiz15 and Lillian Soto-Cordero10, (1)Géoazur - Université Nice Sophia Antipolis, Université Côte d'Azur, IRD, CNRS, OCA, Valbonne, France, (2)Université Côte d’Azur, IRD, CNRS, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France, (3)Géoazur - Université Côte d'Azur, IRD, CNRS, OCA, Valbonne, France, (4)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador, (5)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (6)Lehigh University, Earth and Environmental Sciences, Bethlehem, United States, (7)University of Liverpool, Liverpool, United Kingdom, (8)Karlsruhe Institute of Technology, Karlsruhe, Germany, (9)University of Arizona, Tucson, AZ, United States, (10)Lehigh University, Earth and Environmental Sciences, Bethlehem, PA, United States, (11)Géoazur - Université Nice Sophia Antipolis, Valbonne, France, (12)Géoazur - Université Côte d'Azur - IRD - CNRS - Observatoire de la côte d'Azur, Valbonne, France, (13)Karlsruhe Institute of Technology, Geophysical Institute (GPI), Karlsruhe, Germany, (14)Univ Pierre et Marie Curie, Paris, France, (15)Escuela Politécnica Nacional, Instituto Geofísico, Quito, Ecuador
Heterogeneous interseismic coupling along the Peruvian subduction zone, rigid motion of the Peruvian forearc sliver and Subandean shortening accommodation (386430)
Juan-Carlos Villegas-Lanza1, Mohamed Chlieh2, Olivier Cavalié3, Hernando Tavera1, Patrice Baby4, Jose Chire5 and Jean Mathieu Nocquet6, (1)Instituto Geofísico del Perú, Lima, Peru, (2)IRD, CNRS, Université Grenoble Alpes, ISTerre, Grenoble, France, (3)Aix-Marseille Université, CEREGE CNRS-IRD UMR 34, Valbonne, France, (4)Institut de Recherche pour le Developpement, Lima, Peru, (5)Instituto Geogáfico Nacional del Perú, Lima, Peru, (6)Université Côte d'Azur, IRD, CNRS, Géoazur, Valbonne, France
Precursory slow slip events of the 2014 Iquique Earthquake from long-base tilt and GPS records (421632)
Frederick Boudin1, Pascal Bernard2, Gianina Menesez3, Christophe Vigny4,5, Manuel Olcay6, Carlos Tassera6, Jean-Paul Boy7, El-Madani Aissaoui8, Marianne Metois9, Claudio Satriano10, Marie-France Esnoult10, Alexandre Nercessian8, Martin Vallée11, Jean-Pierre Vilotte10 and Christophe Brunet12, (1)Ecole Normale Superieure de PAris, PSL Research University, Paris, France, (2)Institut de Physique du Globe de Paris (IPGP), Université Paris Cité, Paris, France, (3)Ecole Normale Superieure de Paris, PSL Research University, Paris, France, (4)Ecole Normale Supérieure, PSL Research University, CNRS UMR 8538, Laboratoire de Géologie, Paris, France, (5)Ecole Normale Supérieure, Paris, France, (6)Universidad Arturo Prat Iquique, departemento de Fisica, Iquique, Chile, (7)Université de Strasbourg, CNRS, EOST, IPGS UMR 7516, Strasbourg, France, (8)Institut de Physique du Globe de Paris, Paris, France, (9)University Claude Bernard Lyon 1, Lyon, France, (10)Institut de Physique du Globe, Paris, France, (11)Université de Paris, Institut de physique du globe de Paris, Paris, France, (12)IPGP, Observatoire Volcanologique du Piton de la Fournaise, Bourg Murat, France
Implication of the 1960 Mw=9.5 Valdivia, Chile, Earthquake and the Mw=7.7 Aysén Slow Earthquake for slip Partitioning along the South Chile Subduction zone (381501)
Hiroo Kanamori, California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States and Luis A Rivera, Université de Strasbourg, CNRS, ITES UMR 7063, Strasbourg, France

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