@article{fdi:010076221,
  title = {{R}idge subduction and afterslip control aftershock distribution of the 2016 {M}w 7.8 {E}cuador earthquake},
  author = {{A}gurto-{D}etzel, {H}. and {F}ont, {Y}vonne and {C}harvis, {P}hilippe and {R}{\'e}gnier, {M}arc and {R}ietbrockh, {A}. and {A}mbrois, {D}avid and {P}aulatto, {M}. and {A}lvarado, {A}. and {B}eck, {S}. and {C}ourboulex, {F}. and {D}e {B}arros, {L}. and {D}eschamps, {A}. and {H}ernandez, {M}. {J}. and {H}ernandez, {S}. and {H}oskins, {M}. and {L}eon-{R}ios, {S}. and {L}ynner, {C}. and {M}eltzer, {A}. and {M}ercerath, {E}. {D}. and {M}ichaud, {F}. and {N}ocquet, {J}ean-{M}athieu and {R}olandone, {F}r{\'e}d{\'e}rique and {R}uiz, {M}. and {S}oto-{C}ordero, {L}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e characterise the aftershock sequence following the 2016 {M}w= 7.8 {P}edernales earthquake. {M}ore than 10,000 events were detected and located, with magnitudes up to 6.9. {M}ost of the aftershock seismicity results from interplate thrust faulting, but we also observe a few normal and strike-slip mechanisms. {S}eismicity extends for more than 300 km along strike, and is constrained between the trench and the maximum depth of the coseismic rupture. {T}he most striking feature is the presence of three seismicity bands, perpendicular to the trench, which are also observed during the interseismic period. {A}dditionally, we observe a linear dependency between the temporal evolution of afterslip and aftershocks. {W}e also find a temporal semi-logarithmic expansion of aftershock seismicity along strike and dip directions, further indicating that their occurrence is modulated by afterslip. {L}astly, we observe that the spatial distribution of seismic and aseismic slip processes is correlated to the distribution of bathymetric anomalies associated with the northern flank of the {C}arnegie {R}idge, suggesting that slip in the area could be influenced by the relief of the subducting seafloor. {T}o explain our observations, we propose a conceptual model in which the {E}cuadorian margin is subject to a bimodal slip mode, with distributed seismic and aseismic slip mechanically controlled by the subduction of a rough oceanic relief. {O}ur study sheds new light on the mechanics of subduction, relevant for convergent margins with a complex and heterogeneous structure such as the {E}cuadorian margin.},
  keywords = {aftershock ; subduction ; afterslip ; {E}cuador ; {C}arnegie {R}idge ; seafloor ; relief ; {EQUATEUR} ; {PACIFIQUE}},
  booktitle = {},
  journal = {{E}arth and {P}lanetary {S}cience {L}etters},
  volume = {520},
  numero = {},
  pages = {63--76},
  ISSN = {0012-821{X}},
  year = {2019},
  DOI = {10.1016/j.epsl.2019.05.029},
  URL = {https://www.documentation.ird.fr/hor/fdi:010076221},
}