T51E:
Subduction Zone Earthquakes and the Role of Asperities in Rupture Propagation and Aftershock Sequences: Insights from the 16 April 2016 Pedernales, Ecuador Earthquake I Posters

Submit an Abstract to this Session Please know the abstract submission deadline has passed. There are no exceptions to this deadline and no new abstracts can be submitted.
You can still search the program to see your colleague�s abstract submissions as well as the sessions submitted for the 2016 Fall Meeting. The final program will be released in early October.


Session ID#: 13677

Session Description:
On April 16, 2016 the subduction zone offshore Ecuador ruptured in a Mw 7.8 earthquake just north of the intersection of the Carnegie Ridge with the trench, a region of increased interseismic coupling as measured by GPS. The event is the largest earthquake in Ecuador since a similar portion of the subduction zone ruptured in 1942. The subduction zone adjacent to and north of the Carnegie Ridge has ruptured on decadal time scales in Mw 7.7-7.8 events, and a Mw 8.8 event in 1906. Increases in observational capabilities provide new opportunities to study the role of asperities in focusing stress, promoting and/or inhibiting rupture propagation, and the role of slow slip events in the earthquake cycle. We invite submissions from a range of disciplines on the Pedernales earthquake, seismicity and deformation along the subduction system in Ecuador and adjacent regions, and the role of asperities in subduction zone earthquakes.
Primary Convener:  Anne Meltzer, Lehigh University, Earth and Environmental Sciences, Bethlehem, PA, United States
Conveners:  Hugo A Yepes, Instituto Geofísico de la Escuela Politécnica Nacional, Quito, Ecuador, Jean Mathieu Nocquet, Institut de Recherche pour le Développement - IRD, Valbonne, France and Hiroyuki Kumagai, Nagoya University, Nagoya, Japan
Chairs:  Hiroyuki Kumagai, Nagoya University, Nagoya, Japan and Jean Mathieu Nocquet, Institut de Recherche pour le Développement - IRD, Valbonne, France
OSPA Liaison:  Hiroyuki Kumagai, Nagoya University, Nagoya, Japan

Cross-Listed:
  • G - Geodesy
  • NH - Natural Hazards
  • S - Seismology
Index Terms:

8104 Continental margins: convergent [TECTONOPHYSICS]
8118 Dynamics and mechanics of faulting [TECTONOPHYSICS]
8123 Dynamics: seismotectonics [TECTONOPHYSICS]
8170 Subduction zone processes [TECTONOPHYSICS]

Abstracts Submitted to this Session:

International postseismic response after the Mw=7.8 April 16, 2016 Pedernales Earthquake in Ecuador (178845)
Yvonne Font1, Mario Calixto Ruiz2, Alexandra Alvarado3, Diego Mercerat4, Susan L Beck5, Sergio Leon Rios6, Anne Meltzer7, Philippe Charvis8, Marc M Regnier9, Paul Jarrin3, Andreas Rietbrock6, Freddy Vasconez10, Viviana Dionicio11, Marta Lucia Calvache12, Juan Carlos Singaucho3, Andres Pazmino13, Frederique Rolandone14, Patricia A Mothes15, Jean-Mathieu Nocquet16, Xavier Martin17, Cristian Viracucha3, Laurence Audin18, Marianne Saillard19, Aurore Laurendeau20, Matthieu Perrault10, Thomas Garth6, Michel Pernoud21, Juan Gabriel Barros3, Ben Yates17, Deny Malengros19, Davide Oregioni22, Juan Carlos Villegas Lanza23, David Cisneros24, Juan Gomez24, Luis Montes24, Céline M. Beauval25, Etienne Bertrand26, Bertrand Delouis27, Andres Gorki Ruiz Paspuel28, Jeffrey Todd Freymueller29, Keith Williams30, Peter C La Femina31, Amaya Fuenzalida6, Judith Mariniere32, Jerome Cheze19, Philippe Gueguen25, Christophe Maron17, Francois Michaud33, Hugo A Yepes3, Pablo Palacios3, Martin Vallée34, Anne Deschamps35, Gabriela Ponce3, David Ambrois36, Cristina Ramos3 and Francoise Courboulex37, (1)Université Côte d’Azur, IRD, Observatoire de la Côte d'Azur, CNRS, Géoazur, Valbonne, France, (2)Escuela Politécnica Nacional, Instituto Geofísico, Quito, Ecuador, (3)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador, (4)CEREMA, Laboratoire de Nice, Nice, France, (5)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (6)University of Liverpool, Liverpool, United Kingdom, (7)Lehigh University, Earth and Environmental Sciences, Bethlehem, PA, United States, (8)Université Côte d’Azur, IRD, Observatoire Côte d'Azur, CNRS, Géoazur, Valbonne, France, (9)Géoazur - Université Côte d'Azur - IRD - CNRS - Observatoire de la côte d'Azur, Valbonne, France, (10)Instituto Geofísico de la Escuela Politécnica Nacional, Quito, Ecuador, (11)Servicio Geológico Colombiano, Red Sismológica Nacional de Colombia, Bogotá, Colombia, (12)Servicio Geológico Colombiano, Bogotá, Red Sismológica Nacional de Colombia, Bogotá D.C., Colombia, (13)INOCAR, Guayaquil, Ecuador, (14)Sorbonne Universités, UPMC Université Paris 06, CNRS, ISTeP, Paris, France, (15)National Polytecnical School, Instituto Geofisico, Quito, Ecuador, (16)Géoazur - Université Nice Sophia Antipolis, Valbonne, France, (17)Géoazur - Université Nice Sophia Antipolis, Université Côte d'Azur, IRD, CNRS, OCA, Valbonne, France, (18)IRD, CNRS, Université Grenoble Alpes, ISTerre, Grenoble, France, (19)Université Nice Côte d’Azur, IRD, CNRS, Géoazur, Valbonne, France, (20)IRSN Institut de Radioprotection et de Sûreté Nucléaire, Fontenay Aux Roses Cedex, France, (21)CEREMA, Direction Territoriale Méditerranée, Nice, France, (22)Université Côte d’Azur, CNRS, IRD, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France, (23)Instituto Geofísico del Perú, Unidad de Geodesia Espacial, Lima, Peru, (24)Instituto Geográfico Militar, Quito, Ecuador, (25)ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, (26)Organization Not Listed, Washington, DC, United States, (27)Université Côte d’Azur, IRD, CNRS, Observatoire de la Côte d’Azur, Géoazur, 250 rue Albert Einstein, 06560 Valbonne, France, Valbonne, France, (28)Pennsylvania State University Main Campus, University Park, PA, United States, (29)Michigan State University, Earth and Environmental Sciences, East Lansing, MI, United States, (30)UNAVCO, Inc., Boulder, United States, (31)The Pennsylvania State University, Department of Geosciences, University Park, PA, United States, (32)ISTerre - Grenoble University, Grenoble, France, (33)Geoazur-Sorbonne Université, Valbonne, France, (34)Université de Paris, Institut de physique du globe de Paris, Paris, France, (35)UNS/CNRS, Valbonne, France, (36)Université Côte d’Azur, IRD, CNRS, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France, (37)GeoAzur, Valbonne, France
Interseismic velocity field and coupling along the Ecuador Subduction interface in relation to the 2016 Pedernales Earthquake (191581)
Paul Alberto Jarrin Tamayo, National Polytechnical University Ecuador EPN, Quito, Ecuador, Jean-Mathieu Nocquet, Géoazur - Université Nice Sophia Antipolis, Valbonne, France, Frederique Rolandone, Sorbonne Universités, UPMC Université Paris 06, CNRS, ISTeP, Paris, France and Patricia A Mothes, National Polytecnical School, Instituto Geofisico, Quito, Ecuador
Near and far field coseismic deformation of the 7.8 Mw Pedernales earthquake: response of the countrywide (Ecuador) GPS network (193601)
Patricia A Mothes, National Polytecnical School, Instituto Geofisico, Quito, Ecuador, Frederique Rolandone, Sorbonne Universités, UPMC Université Paris 06, CNRS, ISTeP, Paris, France, Jean-Mathieu Nocquet, Géoazur - Université Nice Sophia Antipolis, Valbonne, France and Paul Jarrin, Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador
Early postseismic deformation following the 2016 Mw7.8 Pedernales earthquake, Ecuador from GPS data (161910)
Frederique Rolandone1,2, Jean Mathieu Nocquet2, Patricia A Mothes3, Paul Jarrin3 and Stephen Hernandez3, (1)Sorbonne Universités, UPMC Université Paris 06, CNRS, ISTeP, Paris, France, (2)Institut de Recherche pour le Développement - IRD, Valbonne, France, (3)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador
Comparison of observed ground-motion attenuation for the 2016/04/16 M7.8 Ecuador interface earthquake and its two largest aftershocks with existing ground-motion prediction equations. (184365)
Judith Mariniere1, Aurore Laurendeau2, Céline M. Beauval1, Juan Carlos Singaucho3, Guillermo Viracucha3, Martin Vallée4, Gabriela Ponce3, Hugo A Yepes3, Mario Calixto Ruiz5, Alexandra Alvarado3 and Enrique D Mercerat6, (1)ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, (2)IRSN Institut de Radioprotection et de Sûreté Nucléaire, Fontenay Aux Roses Cedex, France, (3)Instituto Geofísico de la Escuela Politécnica Nacional, Quito, Ecuador, (4)Université de Paris, Institut de physique du globe de Paris, Paris, France, (5)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador, (6)CEREMA, Direction Territoriale Méditerranée, Nice, France
Tsunami source estimate of the 1906 Ecuador-Colombia earthquake (143336)
Masahiro Yoshimoto and Hiroyuki Kumagai, Nagoya University, Furo-Cho,Chikusa-Ku,, Japan
Recurrent Slow Slip Events Acting as Barriers for the Northward Rupture Propagation of the 2016 Pedernales Earthquake (Central Ecuador) (143927)
Sandro Vaca, Institut de Physique du Globe de Paris, Paris, France, Martin Vallée, Université de Paris, Institut de physique du globe de Paris, Paris, France, Jean Mathieu Nocquet, Institut de Recherche pour le Développement - IRD, Valbonne, France, Jean Battaglia, Laboratoire Magmas et Volcans, Clermont Ferrand, France and Marc M Regnier, Géoazur - Université Côte d'Azur - IRD - CNRS - Observatoire de la côte d'Azur, Valbonne, France
2016 M=7.8 Muisne, Ecuador, Earthquake Overlapped or Re-Ruptured the 1942 M=7.8 Patch, and May Have Left a Large Gap to the North That Has Not Slipped since 1906 (166835)
Gabriel C Lotto, Temblor, Inc., Redwood City, CA, United States and Ross S Stein, Temblor, Inc., Tiburon, CA, United States
Seismicity in the Wake of the April 2016 Pedernales Earthquake (168272)
Anne Meltzer1, Susan L Beck2, Mario Calixto Ruiz3, Stephen Hernandez3, Alexandra Alvarado4, Marc M Regnier5, Andreas Rietbrock6, Yvonne Font5, Philippe Charvis7, Hugo A Yepes4, Lynner Colton8 and Dr. Robert W Porritt, PhD8, (1)Lehigh University, Earth and Environmental Sciences, Bethlehem, PA, United States, (2)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (3)Escuela Politécnica Nacional, Instituto Geofísico, Quito, Ecuador, (4)Instituto Geofísico, Escuela Politécnica Nacional, Quito, Ecuador, (5)Université Côte d’Azur, IRD, Observatoire de la Côte d'Azur, CNRS, Géoazur, Valbonne, France, (6)University of Liverpool, Liverpool, United Kingdom, (7)Université Côte d’Azur, IRD, Observatoire Côte d'Azur, CNRS, Géoazur, Valbonne, France, (8)University of Arizona, Tucson, AZ, United States
The Seismic Sequence of the 2016 Mw 7.8 Pedernales, Ecuador Sarthquake (173705)
Sergio Leon-Rios1, Amaya Fuenzalida2, Lidong Bie1, Thomas Garth2, Pablo J Gonzalez3, James Holt4, Andreas Rietbrock5, Benjamin Edwards2, Marc M Regnier6, Michel Pernoud7, Enrique D Mercerat7, Matthieu Perrault8, Yvonne Font9, Alexandra Alvarado10, Philippe Charvis11, Susan L Beck12 and Anne Meltzer13, (1)University of Liverpool, Liverpool, L69, United Kingdom, (2)University of Liverpool, Liverpool, United Kingdom, (3)University of Western Ontario, London, ON, Canada, (4)University of Liverpool, Institute for Risk and Uncertainty, Liverpool, United Kingdom, (5)Karlsruhe Institute of Technology, Geophysical Institute, Karlsruhe, Germany, (6)Géoazur - Université Côte d'Azur - IRD - CNRS - Observatoire de la côte d'Azur, Valbonne, France, (7)CEREMA, Direction Territoriale Méditerranée, Nice, France, (8)Instituto Geofísico de la Escuela Politécnica Nacional, Quito, Ecuador, (9)Université Côte d’Azur, IRD, CNRS, Observatoire de la Côte d’Azur, Géoazur, Valbonne, France, (10)Organization Not Listed, Washington, DC, United States, (11)Institut de Recherche pour le Développement - IRD, Valbonne, France, (12)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (13)Lehigh University, Earth and Environmental Sciences, Bethlehem, PA, United States

See more of: Tectonophysics