@article{fdi:010085086,
  title = {20th-century strain accumulation on the {L}esser {A}ntilles megathrust based on coral microatolls},
  author = {{P}hilibosian, {B}. and {F}euillet, {N}. and {W}eil-{A}ccardo, {J}ennifer and {J}acques, {E}. and {G}uihou, {A}. and {M}eriaux, {A}. {S}. and {A}nglade, {A}. and {S}aurel, {J}. {M}. and {D}eroussi, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he seismic potential of the {L}esser {A}ntilles megathrust remains poorly known, despite the potential hazard it poses to numerous island populations and its proximity to the {A}mericas. {A}s it has not produced any large earthquakes in the instrumental era, the megathrust is often assumed to be aseismic. {H}owever, historical records of great earthquakes in the 19th century and earlier, which were most likely megathrust ruptures, demonstrate that the subduction is not entirely aseismic. {R}ecent occurrences of giant earthquakes in areas where such events were previously thought to be improbable have illustrated the importance of critically evaluating the seismic potential of other "low-hazard " subduction zones, such as the {L}esser {A}ntilles. {U}sing the method of coral microatoll paleogeodesy developed in {S}umatra, we examine 20th-century vertical deformation on the forearc islands of the {L}esser {A}ntilles and model the underlying strain accumulation on the megathrust. {O}ur data indicate that the eastern coasts of the forearc islands have been subsiding by up to ~8 mm/yr relative to sites closer to the arc, suggesting that on the time scale of the 20th century, a portion of the megathrust just east of the forearc islands has been locked. {O}ur findings are in contrast to recent models based on satellite geodesy that suggest little or no strain accumulation anywhere along the {L}esser {A}ntilles megathrust. {T}his discrepancy is potentially explained by the different time scales of measurement, as recent studies elsewhere have indicated that interseismic coupling patterns may vary on decadal time scales and that century-scale or longer records are required to fully assess seismic potential. {T}he accumulated strain we have detected will likely be released in future megathrust earthquakes, uplifting previously subsiding areas and potentially causing widespread damage from strong ground motion and tsunami waves.},
  keywords = {{L}esser {A}ntilles ; {C}aribbean ; subduction ; tectonic deformation ; earthquake ; coral microatoll ; {CARAIBES} {MER} ; {PETITES} {ANTILLES}},
  booktitle = {},
  journal = {{E}arth and {P}lanetary {S}cience {L}etters},
  volume = {579},
  numero = {},
  pages = {117343 [11 p.]},
  ISSN = {0012-821{X}},
  year = {2022},
  DOI = {10.1016/j.epsl.2021.117343},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085086},
}