Postseismic deformation along the Liquiñe-Ofqui fault zone after the 2010 Maule Earthquake

• Applicant: Professor Marcos Moreno, Ph.D.
• Subject Area: Geophysics ; Geodesy, Photogrammetry, Remote Sensing, Geoinformatics, Cartography
• Term: from 2013 to 2015
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 253478941

• Final Report Year: 2019

Final Report Abstract

This project successfully produced permanent collaborations among the principal investigators. The scientific results achieved help to better understand the mechanics related to deformation induced by large subduction earthquakes. Unfortunately, the deformation patterns are complex and the available data were not sufficient to analyze activation along the LOFZ after the Maule 2010 earthquake. New data and new projects will help to better understand this relationship.

Publications

• Contrasting amount of fluids along the megathrust ruptured by the 2010 Maule earthquake as revealed by a combined analysis of aftershocks and afterslip Bedford, J., Moreno, M. and Baez, J.C., 2016,: Tectonophysics, Vol. 671, 95-109, ISSN 0040-1951
  Tassara, A., Soto, H.
  (See online at https://doi.org/10.1016/j.tecto.2016.01.009)
• Interseismic deformation at subduction zones investigated by 2D numerical modeling: case study before the 2010 Maule earthquake. Andean geology, Servicio Nacional de Geologia y Mineria, 2016, 43 (3), pp.247 - 262
  Marcelo Contreras, Andrés Tassara, Muriel Gerbault, Rodolfo Araya, Klaus Bataille
  (See online at https://doi.org/10.5027/andgeoV43n3-a01)
• (2017), The super-interseismic phase of the megathrust earthquake cycle in Chile, Geophys. Res. Lett., 44
  Melnick, D., Moreno, M., Quinteros, J., Baez, J.C., Deng, Z., Li, S., and Oncken, O.
  (See online at https://doi.org/10.1002/2016GL071845)
• (2018). Chilean megathrust earthquake recurrence linked to frictional contrast at depth, Nature Geoscience, 11, 285-290
  Moreno, M., Li, S., Melnick, D., Bedford, J.R., Baez, J.C., Motagh, M., Metzger, S., Vajedian, S., Sippl, C., Gutknecht, B., Contreras-Reyes, E., Deng, Z., Tassara, A, and Oncken, O.
  (See online at https://doi.org/10.1038/s41561-018-0089-5)
• (2019), Role of Lower Crust in the Postseismic Deformation of the 2010 Maule Earthquake: Insights from a Model with Power-Law Rheology, Pure and Applied Geophysics
  Peña, C., Heidbach, O., Moreno, M., Bedford, J., Moritz, Z., Tassara, A., Oncken, O.
  (See online at https://doi.org/10.1007/s00024-018-02090-3)