@article{PAR00007800,
  title = {{N}ew insights on the interseismic active deformation along the {N}orth {E}cuadorian-{S}outh {C}olombian ({NESC}) margin},
  author = {{M}anchuel, {K}. and {R}{\'e}gnier, {M}arc and {B}ethoux, {N}. and {F}ont, {Y}vonne and {S}allares, {V}. and {D}iaz, {J}. and {Y}epes, {H}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {N}orth {E}cuadorian-{S}outh {C}olombian subduction zone was the site of the 1906 {M}w 8.8 megathrust earthquake. {T}his main shock was followed by three large events in 1942, 1958, and 1979 whose rupture zones were located within the 500 km long 1906 rupture area. {A} combined onshore and offshore temporary seismic network covering from the trench to the {A}ndes was deployed during 3 months in the area of large earthquakes, in order to obtain a detailed knowledge of the seismic background activity. {R}esulting earthquakes location and mechanisms bring new insights on interseismic active deformation distribution in the three main tectonic units of the margin, namely, the {I}nterplate {S}eismogenic {Z}one, the fore-arc region which is part of the {N}orth {A}ndean {B}lock and the downgoing oceanic {N}azca plate. {T}he interplate seismic activity presents along strike variations, suggesting that the seismicity and the associated stress buildup along the plate interface depend on the time elapsed since the last large earthquakes. {A}ccording to our results, the updip and downdip limits of the seismogenic zone appear to be located at 12 and 30 km depth, respectively. {S}hallow to intermediate depth seismicity indicates a slab dip angle of approximate to 25 degrees. {N}orth of the {C}arnegie {R}idge, the {W}adati-{B}enioff plane is defined beneath the fore arc down to approximate to 100 km depth. {F}acing the ridge, the {W}adati-{B}enioff plane extends beneath the {A}ndes, down to approximate to 140 km depth. {T}his observation conflicts with the hypothesis of the presence of a flat slab at a depth of 100 km facing the ridge. {I}n the overlying fore-arc region, the crustal seismicity occurs down to 40 km depth and is mainly concentrated in a roughly {NW}-{SE} 100 km wide stripe stretching from the coast, at about 1 degrees {N}, to the {A}ndes. {T}he location of this active deformation stripe coincides with observed tectonic segmentation of the coastal domain as evidenced by the presence of an uplifting segment to the south and a subsiding segment to the north of the stripe. {I}t also corresponds to a approximate to 30 degrees change in the trend of the {A}ndes, suggesting that the curvature of the volcanic arc might play an important role in the deformation of the fore-arc region.},
  keywords = {},
  booktitle = {},
  journal = {{T}ectonics},
  volume = {30},
  numero = {},
  pages = {{TC}4003},
  ISSN = {0278-7407},
  year = {2011},
  DOI = {10.1029/2010tc002757},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00007800},
}