@article{fdi:010086994,
  title = {{A}fterslip of the {M}-w 8.3 2015 {I}llapel {E}arthquake imaged through a time-dependent inversion of continuous and survey {GNSS} data},
  author = {{T}issandier, {R}. and {N}ocquet, {J}ean-{M}athieu and {K}lein, {E}. and {V}igny, {C}. and {O}jeda, {J}. and {R}uiz, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{W}e use continuous and survey {GNSS} data to image the spatial and temporal evolution of afterslip during the 2 months following the {M}-w 8.3 2015 {I}llapel earthquake. {O}ur approach solves for the incremental daily slip at the subduction interface using nonnegative least squares with spatial and temporal {L}aplacian regularization constraints. {W}e find that afterslip developed at three specific areas at the megathrust, surrounding the coseismic rupture. {I}n addition, well resolved afterslip also occurs within the coseismic rupture area that experienced similar to 4 m of seismic slip. {O}ur afterslip model shows striking correlations with the spatial distribution of aftershocks and repeating earthquakes. {W}e capture the local afterslip triggered by a {M}-w 6.8 and two 6.9 aftershocks that ruptured downdip and north of the coseismic rupture, respectively. {T}he latter ones were possibly triggered by the afterslip that developed north of the rupture. {W}e also find a pulse of enhanced aseismic slip lasting a few days south of the rupture that spatially and temporally correlates with a seismicity burst. {W}e finally find that areas of enhanced afterslip spatially correlates with areas having experienced regular seismic swarms observed during the years prior to the {I}llapel earthquake. {T}his correlation supports the view of localized fluid high pore pressure areas behaving aseismically and surrounding a highly locked asperity, preventing the seismic rupture to propagate into them.},
  keywords = {8170 ; 8118 ; {CHILI}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {S}olid {E}arth},
  volume = {128},
  numero = {2},
  pages = {e2022{JB}024778 [21 ]},
  ISSN = {2169-9313},
  year = {2023},
  DOI = {10.1029/2022jb024778},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086994},
}