@article{fdi:010079002,
  title = {{G}eodetic evidence for shallow creep along the {Q}uito fault, {E}cuador},
  author = {{M}arini{\`e}re, {J}udith and {N}ocquet, {J}. {M}. and {B}eauval, {C}{\'e}line and {C}hampenois, {J}. and {A}udin, {L}aurence and {A}lvarado, {A}. and {B}aize, {S}. and {S}ocquet, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{Q}uito, the capital city of {E}cuador hosting similar to 2 million inhabitants, lies on the hanging wall of a similar to 60-km-long reverse fault offsetting the {I}nter-{A}ndean {V}alley in the northern {A}ndes. {S}uch an active fault poses a significant risk, enhanced by the high density of population and overall poor building construction quality. {H}ere, we constrain the present-day strain accumulation associated with the {Q}uito fault with new {G}lobal {P}ositioning {S}ystem ({GPS}) data and {P}ersistent {S}catterer {I}nterferometric {S}ynthetic {A}perture {R}adar ({PS}-{I}n{SAR}) analysis. {F}ar field {GPS} data indicate 3-5 mm yr(-1) of horizontal shortening accommodated across the fault system. {I}n the central segment of the fault, both {GPS} and {PS}-{I}n{SAR} results highlight a sharp velocity gradient, which attests for creep taking place along the shallowest portion of the fault. {S}moother velocity gradients observed along the other segments indicate that the amount of shallow creep decreases north and south of the central segment. 2-{D} elastic models using {GPS} horizontal velocity indicate very shallow (<1 km) locking depth for the central segment, increasing to a few kilometres south and north of it. {I}ncluding {I}n{SAR} results in the inversion requires locking to vary both along dip and along strike. 3-{D} spatially variable locking models show that shallow creep occurs along the central 20-km-long segment. {N}orth and south of the central segment, the interseismic coupling is less resolved, and data still allows significant slip deficit to accumulate. {U}sing the interseismic moment deficit buildup resulting from our inversions and the seismicity rate, we estimate recurrence time for magnitude 6.5 + earthquake to be between 200 and 1200 yr. {F}inally, {PS}-{I}n{SAR} time-series identify a 2 cm transient deformation that occurred on a secondary thrust, east of the main {Q}uito fault between 1995 and 1997.},
  keywords = {{C}reep and deformation ; {R}adar interferometry ; {S}atellite geodesy ; {S}outh {A}merica ; {C}ontinental tectonics: compressional ; {D}ynamics and mechanics of faulting ; {EQUATEUR} ; {ANDES} ; {QUITO}},
  booktitle = {},
  journal = {{G}eophysical {J}ournal {I}nternational},
  volume = {220},
  numero = {3},
  pages = {2039--2055},
  ISSN = {0956-540{X}},
  year = {2020},
  DOI = {10.1093/gji/ggz564},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079002},
}