S33E:
The Central Andean Subduction Zone: Past, Present, and Future II

Wednesday, 17 December 2014: 1:40 PM-3:40 PM
Chairs:  Javier A Ruiz, University of Chile, Santiago, Chile, Anne Socquet, ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France and Daniel Carrizo, University of Chile, AMTC, Santiago, Chile
Primary Conveners:  Francisco H Ortega Culaciati, University of Chile, Department of Geophysics, Santiago, Chile
Co-conveners:  Onno Oncken, GeoForschungsZentrum Potsdam, Potsdam, Germany, Edmundo O Norabuena, Instituto Geofísico del Perú, Lima, Peru and Daniel Carrizo, University of Chile, Advanced Mining Technology Center, Santiago, Chile
OSPA Liaisons:  Onno Oncken, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany

Abstracts Submitted to this Session:

1:40 PM
 
The April 1, 2014 Pisagua (Mw 8.2) Northern Chile Earthquake Seismo-Geodetic Intervention
Francisco H Ortega Culaciati1, Daniel Carrizo2, Edmundo O Norabuena3, Diana Comte1, Jorge Jara4, Eduardo Contreras Reyes1, Mohamed Chlieh5, Arthur Delorme6, Joachim F Genrich7, Emilie Klein8, Marcos Moreno9, Ismael Ortega10, Sophie Peyrat11, Efrain Rivera1, Sergio Ruiz1, MariaCarolina Valderas Bermejo10, Klaus Dieter Bataille12, Mark Simons7, Anne Socquet4, Christophe Vigny13 and Jean-Pierre Vilotte6, (1)University of Chile, Department of Geophysics, Santiago, Chile, (2)Universidad de Chile, Advanced Mining and Technology Center, Santiago, Chile, (3)Instituto Geofísico del Perú, Lima, Peru, (4)ISTerre Institute of Earth Sciences, Saint Martin d'Hères, France, (5)Geoazur, Valbonne, France, (6)Institut de Physique du Globe de Paris, Paris, France, (7)California Institute of Technology, Pasadena, CA, United States, (8)Ecole Normale Supérieure Paris, Paris, France, (9)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (10)Universidad de Chile, Centro Sismologico National, Santiago, Chile, (11)Geosciences Montpellier, UMR5242, Universite Montpellier 2, Montpellier, France, (12)Universidad de Concepcion, Concepcion, Chile, (13)ENS/CNRS, Paris, France
1:55 PM
 
Geodetic observations of megathrust earthquakes and backarc wedge deformation across the central Andes
Jonathan R. Weiss1, Benjamin A Brooks2, James H Foster3, Michael G Bevis4, Arturo Echalar5, Dana Caccamise4 and Jacob M Heck4, (1)University of Hawaii at Manoa, Department of Geology and Geophysics, Honolulu, HI, United States, (2)California Geological Survey Menlo Park, Menlo Park, CA, United States, (3)University of Hawaii, Hawaii Institute of Geophysics and Planetology, Honolulu, HI, United States, (4)The Ohio State University, Columbus, OH, United States, (5)Instituto Geográfico Militar, La Paz, Bolivia
2:10 PM
 
Coupling at the Northern Chile seismic gap and moment balance after the Mw=8.2 Pisagua event 2014
Andreas Hoechner, Jonathan Raoul Bedford, Marcos Moreno, Sebastian Hainzl and Torsten Dahm, Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany
2:25 PM
 
Partial breaking of the Northern Chile seismic gap by the 2014 Pisagua-Iquique earthquake as a consequence of seismic slip transients
Marcos Moreno1, Jonathan Raoul Bedford1, Juan Carlos Baez2, Shaoyang Li1, Mitja Bartsch1, Bernd Schurr1, Onno Oncken1, Andreas Hoechner1, Jürgen Klotz1, Andres Tassara3, Mahesh Narayan Shrivastava4 and Gabriel Gonzalez4, (1)Helmholtz Centre Potsdam GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Centro Sismologico National, Universidad de Chile, Santiago, Chile, (3)University of Concepcion, Concepcion, Chile, (4)Universidad Católica del Norte, Department of Geological Sciences, Antofagasta, Chile
2:40 PM
 
Long-Term Stability of the 2014 Iquique, Chile Earthquake Rupture Zone: Evidence from Forearc Deformation
John P Loveless1, Richard W Allmendinger2, Gabriel Gonzalez3, William D Barnhart4 and Chelsea P Scott2, (1)Smith College, Northampton, MA, United States, (2)Cornell University, Ithaca, NY, United States, (3)Universidad Católica del Norte, National Research Center for Integrated Natural Disaster Management, Antofagasta, Chile, (4)USGS National Earthquake Information Center Golden, Golden, CO, United States
2:55 PM
 
Coseismic Surface Cracks Produced By the Mw8.1 Pisagua Earthquake Sequence
Richard W Allmendinger1, Chelsea P Scott1, Gabriel Gonzalez2,3 and John P Loveless4, (1)Cornell University, Ithaca, NY, United States, (2)Universidad Católica del Norte, Department of Geological Sciences, Antofagasta, Chile, (3)National Research Center for Integrated Disaster Management (RCINDIM/CIGIDEN), Santiago, Chile, (4)Smith College, Northampton, MA, United States
3:10 PM
 
Upper Plate Reverse Fault Reactivation and the March-April 2014 Pisagua Earthquake Sequence in Northern Chile
Gabriel Gonzalez1, Pablo Salazar1, John P Loveless2, Richard W Allmendinger3, Felipe Aron3 and Mahesh Narayan Shrivastava1, (1)Universidad Católica del Norte, National Research Center for Integrated Natural Disaster Management, Antofagasta, Chile, (2)Smith College, Northampton, MA, United States, (3)Cornell University, Ithaca, NY, United States
3:25 PM
 
Formulation and Application of a Physically-Based Rupture Probability Model for Large Earthquakes on Subduction Zones: A Case Study of Earthquakes on Nazca Plate
Mehrdad Mahdyiar1, Gerald Galgana1, Bingming Shen-Tu1, Elliot Klein1 and Claire Willis Pontbriand2, (1)AIR-Worldwide Corporation, Boston, MA, United States, (2)Air Worldwide, Boston, MA, United States
 
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