@article{fdi:010086377,
  title = {{H}idden pressurized fluids prior to the 2014 phreatic eruption at {M}t {O}ntake},
  author = {{C}audron, {C}orentin and {A}oki, {Y}. and {L}ecocq, {T}. and {D}e {P}laen, {R}. and {S}oubestre, {J}. and {M}ordret, {A}. and {S}eydoux, {L}. and {T}erakawa, {T}.},
  editor = {},
  language = {{ENG}},
  abstract = {{A} large fraction of volcanic eruptions does not expel magma at the surface. {S}uch an eruption occurred at {M}t {O}ntake in 2014, claiming the life of at least 58 hikers in what became the worst volcanic disaster in {J}apan in almost a century. {T}ens of scientific studies attempted to identify a precursor and to unravel the processes at work but overall remain inconclusive. {B}y taking advantage of continuous seismic recordings, we uncover an intriguing sequence of correlated seismic velocity and volumetric strain changes starting 5 months before the eruption; a period previously considered as completely quiescent. {W}e use various novel approaches such as covariance matrix eigenvalues distribution, cutting-edge deep-learning models, and ascribe such velocity pattern as reflecting critically stressed conditions in the upper portions of the volcano. {T}hese, in turn, later triggered detectable deformation and earthquakes. {O}ur results shed light onto previously undetected pressurized fluids using stations located above the volcano-hydrothermal system and hold great potential for monitoring.},
  keywords = {{JAPON} ; {ONTAKE} {MONT}},
  booktitle = {},
  journal = {{N}ature {C}ommunications},
  volume = {13},
  numero = {1},
  pages = {6145 [9 p.]},
  year = {2022},
  DOI = {10.1038/s41467-022-32252-w},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086377},
}