@article{fdi:010074351,
  title = {{H}eterogeneous structure of the {N}orthern {C}hile marine forearc and its implications for megathrust earthquakes},
  author = {{M}aksymowicz, {A}. and {R}uiz, {J}. and {V}era, {E}. and {C}ontreras-{R}eyes, {E}. and {R}uiz, {S}. and {A}rraigada, {C}. and {B}onvalot, {S}ylvain and {B}ascunan, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{R}ecent studies have proposed that nucleation zones, seismic barriers and high-slip patches of megathrust earthquakes correlate with physical heterogeneities, both in the oceanic/subducting plate and in the continental wedge. {W}e present a density-depth model along the {N}azca-{S}outh {A}merica subduction margin, from 18 degrees {S} to 23 degrees 30'{S}, where a partial segment of this zone was ruptured by the {M}-w 8.2 {I}quique earthquake on 2014 {A}pril 1. {T}he density modelling and interpretation were constrained with seismic reflection profiles, published {V}p-depth tomographic models and relocated seismicity. {T}hese results were used to estimate the variability of normal stress on the seismogenic contact. {O}ur results show a heterogeneous structure for the {N}orthern {C}hile marine forearc. {I}n particular, we observed a latitudinal and longitudinal segmentation of continental wedge properties, where changes in density can be explained by changes in fracturing degree, which could have an important control on the {I}quique earthquake rupture process. {T}his study provides new insights into the analysis of large earthquakes and seismic/tsunami hazard in this active segment of the {C}hilean margin.},
  keywords = {{C}omposition and structure of the continental crust ; {F}ault zone rheology ; {G}ravity anomalies and {E}arth structure ; {S}eismicity and tectonics ; {D}ynamics: seismotectonics ; {CHILI} ; {PACIFIQUE} {SUD} {EST}},
  booktitle = {},
  journal = {{G}eophysical {J}ournal {I}nternational},
  volume = {215},
  numero = {2},
  pages = {1080--1097},
  ISSN = {0956-540{X}},
  year = {2018},
  DOI = {10.1093/gji/ggy325},
  URL = {https://www.documentation.ird.fr/hor/fdi:010074351},
}