@article{fdi:010084695,
  title = {{SAR} and optical images correlation illuminates post-seismic landslide motion after the {M}w 7.8 {G}orkha earthquake ({N}epal)},
  author = {{L}acroix, {P}ascal and {G}avillon, {T}. and {B}ouchant, {C}. and {L}ave, {J}. and {M}ugnier, {J}. {L}. and {D}hungel, {S}. and {V}ernier, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the days to weeks following an earthquake, landslides can display specific post-seismic motions, including delayed initiations and post-seismic relaxations. {T}hese motions have an uncertain origin, sometimes attributed to specificities of the landslide basal interface or to fluid transports in the landslide basal shear zone. {H}ere we address this question, by documenting the co- and post-seismic motions of slow-moving landslides accelerated by the {G}orkha earthquake ({M}w 7.8, 25/04/2015, {N}epal). {W}e detect 11 slow-moving landslides over an area of 750 km(2) in the near field of the earthquake, and monitor their motions thanks to a time-series of {P}leiades optical satellite images and {SAR} {S}entinel-1 images. {T}he post-seismic landslide motions are much larger than the co-seismic ones, reaching up to 34 +/- 0.6 m accommodated over 2 months. {A} delayed initiation of several days (> 4 days) is also measured for at least two of the landslides. {W}e analyze our findings in regards with all the previous observations on slow-moving landslides accelerated by earthquakes, and propose that the post-seismic motions are caused by diffusion of groundwater from co-seismic material contraction up to the landslide basal shear zone or from internal landslide reconfiguration. {O}ur observations strongly suggest the main control of the hydrology in the landslide processes under seismic forcings.},
  keywords = {{NEPAL} ; {GORKHA}},
  booktitle = {},
  journal = {{S}cientific {R}eports - {N}ature},
  volume = {12},
  numero = {1},
  pages = {6266 [13 ]},
  ISSN = {2045-2322},
  year = {2022},
  DOI = {10.1038/s41598-022-10016-2},
  URL = {https://www.documentation.ird.fr/hor/fdi:010084695},
}