@article{fdi:010088679,
  title = {{R}epetitive small seismicity coupled with rainfall can trigger large slope instabilities on metastable volcanic edifices},
  author = {{D}urand, {V}irginie and {M}angeney, {A}. and {B}ernard, {P}. and {J}ia, {X}. {P}. and {B}onilla, {F}. and {S}atriano, {C}. and {S}aurel, {J}. {M}. and {A}issaoui, {E}. and {P}eltier, {A}. and {F}errazzini, {V}. and {K}owalski, {P}. and {L}auret, {F}. and {B}runet, {C}. and {H}ibert, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{Q}uantifying the effect of external forcings like seismicity or rain on slope destabilization is a long-standing and challenging issue. {T}o investigate the respective roles of these forcings, we analyze an unprecedented 10-year long catalog of rockfalls occurring in the crater of the {P}iton de la {F}ournaise volcano ({L}a {R}eunion {I}sland), using statistical tools originally developed for earthquakes. {O}ur analysis reveals the predominant effect of low amplitude repetitive seismicity in the triggering of rockfalls located at a few kilometers from the source, due to progressive damaging of the slope. {M}oreover, we show that the efficiency and time-delay of this dynamic triggering is controlled by the stability state of the slope, i.e. its closeness to the failure, as observed with lab-experiments on metastable granular slopes. {O}ur results show the need to account for long-term swarm-type seismic activity that can affect the stability of geological structures like slopes and faults, but also buildings. {L}ong-term swarm-type seismic activity combined with rainfall can cause instability of volcanic structures like flanks and crater walls, according to statistical analyses of 10 years of observations at the {P}iton de la {F}ournaise volcano and lab experiments},
  keywords = {{REUNION}},
  booktitle = {},
  journal = {{C}ommunications {E}arth and {E}nvironment},
  volume = {4},
  numero = {1},
  pages = {383 [13 ]},
  year = {2023},
  DOI = {10.1038/s43247-023-00996-y},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088679},
}