@article{fdi:010063893,
  title = {{N}ormal upper plate fault reactivation in northern {C}hile and the subduction earthquake cycle : from geological observations and static {C}oulomb {F}ailure {S}tress ({CFS}) change},
  author = {{C}ortes-{A}randa, {J}. and {G}onzalez, {G}. and {R}{\'e}my, {D}ominique and {M}artinod, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he northern {C}hile subduction zone constitutes a seismic gap where no great interplate earthquakes ({M}w > 8.8) have nucleated since 1877. {A}ctive normal faulting occurs conspicuously in the {C}oastal {F}orearc at the southern end of this gap, between 22.7 degrees {S} and 24 degrees {S}. {T}here, upper crustal extension is present right above a suggested subduction segment boundary of the {N}azca-{S}outh {A}merica interplate contact. {I}n this work, by using {C}oulomb {F}ailure {S}tress {C}hange ({CFS}) models, we explore the effects of coseismic and interseismic stages of the subduction earthquake cycle on the reactivation of pre-existing upper plate normal faults in this area. {W}e attempt to unravel the first-order interplate conditions required to explain this extensional pattern, putting specific focus on the influence of the megathrust segmentation defined by the {M}ejillones {P}eninsula. {I}t is suggested that the restricted occurrence of active normal faulting in the study area is tightly related to the structure of the interplate seismogenic zone. {P}ositive {CFS} values are induced in the study area by the coseismic and interseismic stages of the subduction earthquake cycle, in a region characterized by lower coupling beneath the {M}ejillones {P}eninsula. {W}e propose that fault reactivation in this zone is particularly favored during the coseismic stage by earthquakes occurring offshore of the {M}ejillones {P}eninsula and surrounding areas. {I}n the adjacent subduction segments, coseismic and interseismic {CFS} values tend to counterbalance each other, resulting in no tensional conditions capable to cause normal fault reactivation. {W}e suggest that the coupling variation in the seismogenic zone is long term controlled by the geological structure of the upper plate.},
  keywords = {{N}orthern {C}hile ; {C}oastal {F}orearc ; {U}pper plate normal fault reactivation ; {S}ubduction seismic cycle ; {C}oulomb {F}ailure {S}tress ({CFS}) models ; {CHILI}},
  booktitle = {},
  journal = {{T}ectonophysics},
  volume = {639},
  numero = {},
  pages = {118--131},
  ISSN = {0040-1951},
  year = {2015},
  DOI = {10.1016/j.tecto.2014.11.019},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063893},
}