@article{fdi:010085322,
  title = {{O}ngoing tectonic subsidence in the {L}esser {A}ntilles subduction zone},
  author = {van {R}ijsingen, {E}. {M}. and {C}alais, {E}ric and {J}olivet, {R}. and {D}e {C}habalier, {J}. {B}. and {R}obertson, {R}. and {R}yan, {G}. {A}. and {S}ymithe, {S}.},
  editor = {},
  language = {{ENG}},
  abstract = {{G}eological estimates of vertical motions in the central part of the {L}esser {A}ntilles show subsidence on timescales ranging from 125.000 to 100 yr, which has been interpreted to be caused by interseismic locking along the subduction megathrust. {H}owever, horizontal {GNSS} velocities show that the {L}esser {A}ntilles subduction interface is currently building up little to no elastic strain. {H}ere, we present new present-day vertical velocities for the {L}esser {A}ntilles islands and explore the link between short- and long-term vertical motions and their underlying processes. {W}e find a geodetic subsidence of the {L}esser {A}ntilles island arc at 1-2 mm yr(-1), consistent with the similar to 100-yr trend derived from coral micro-atolls. {U}sing elastic dislocation models, we show that a locked or partially locked subduction interface would produce uplift of the island arc, opposite to the observations, hence supporting a poorly coupled subduction. {W}e propose that this long-term, margin-wide subsidence is controlled by slab dynamic processes, such as slab rollback. {S}uch processes could also be responsible for the aseismic character of the subduction megathrust.},
  keywords = {{S}eismic cycle ; {D}ynamics: seismotectonics ; {S}ubduction zone processes ; {PETITES} {ANTILLES} ; {CARAIBES}},
  booktitle = {},
  journal = {{G}eophysical {J}ournal {I}nternational},
  volume = {231},
  numero = {1},
  pages = {319--326},
  ISSN = {0956-540{X}},
  year = {2022},
  DOI = {10.1093/gji/ggac192},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085322},
}