@article{fdi:010067737,
  title = {{P}ostseismic relocking of the subduction megathrust following the 2007 {P}isco, {P}eru, earthquake},
  author = {{R}{\'e}my, {D}ominique and {P}erfettini, {H}ugo and {C}otte, {N}. and {A}vouac, {J}. {P}. and {C}hlieh, {M}ohamed and {B}ondoux, {F}rancis and {S}laden, {A}. and {T}avera, {H}. and {S}ocquet, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{C}haracterizing the time evolution of slip over different phases of the seismic cycle is crucial to a better understanding of the factors controlling the occurrence of large earthquakes. {I}n this study, we take advantage of interferometric synthetic aperture radar data and 3.5 years of continuous {G}lobal {P}ositioning {S}ystem ({GPS}) measurements to determine interseismic, coseismic, and postseismic slip distributions in the region of the 2007, {M}-w 8.0 {P}isco, earthquake, {P}eru, using the same fault geometry and inversion method. {O}ur interseismic model, based on pre-2007 campaign {GPS} data, suggests that the 2007 {P}isco seismic slip occurred in a region strongly coupled before the earthquake while afterslip occurred in low coupled regions. {L}arge afterslip occurred in the peripheral area of coseismic rupture in agreement with the notion that afterslip is mainly induced by coseismic stress changes. {T}he temporal evolution of the region of maximum afterslip, characterized by a relaxation time of about 2.3 years, is located in the region where the {N}azca ridge is subducting, consistent with rate-strengthening friction promoting aseismic slip. {W}e estimate a return period for the {P}isco earthquake of about 230 years with an estimated aseismic slip that might account for about 50% of the slip budget in this region over the 0-50 km seismogenic depth range. {A} major result of this study is that the main asperity that ruptured during the 2007 {P}isco earthquake relocked soon after this event.},
  keywords = {{PEROU}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {S}olid {E}arth},
  volume = {121},
  numero = {5},
  pages = {3978--3995},
  ISSN = {2169-9313},
  year = {2016},
  DOI = {10.1002/2015jb012417},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067737},
}