@article{PAR00004449,
  title = {{S}ource geometry from exceptionally high resolution long period event observations at {M}t {E}tna during the 2008 eruption},
  author = {{D}e {B}arros, {L}. and {B}ean, {C}. {J}. and {L}okmer, {I}. and {S}accorotti, {G}. and {Z}uccarello, {L}. and {O}'{B}rien, {G}. {S}. and {M}etaxian, {J}ean-{P}hilippe and {P}atane, {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{D}uring the second half of {J}une, 2008, 50 broadband seismic stations were deployed on {M}t {E}tna volcano in close proximity to the summit, allowing us to observe seismic activity with exceptionally high resolution. 129 long period events ({LP}) with dominant frequencies ranging between 0.3 and 1.2 {H}z, were extracted from this dataset. {T}hese events form two families of similar waveforms with different temporal distributions. {E}vent locations are performed by cross-correlating signals for all pairs of stations in a two-step scheme. {I}n the first step, the absolute location of the centre of the clusters was found. {I}n the second step, all events are located using this position. {T}he hypocentres are found at shallow depths (20 to 700 m deep) below the summit craters. {T}he very high location resolution allows us to detect the temporal migration of the events along a dike-like structure and 2 pipe shaped bodies, yielding an unprecedented view of some elements of the shallow plumbing system at {M}ount {E}tna. {T}hese events do not seem to be a direct indicator of the ongoing lava flow or magma upwelling. {C}itation: {D}e {B}arros, {L}., {C}. {J}. {B}ean, {I}. {L}okmer, {G}. {S}accorotti, {L}. {Z}uccarello, {G}. {S}. {O}'{B}rien, {J}.-{P}. {M}etaxian, and {D}. {P}atane (2009), {S}ource geometry from exceptionally high resolution long period event observations at {M}t {E}tna during the 2008 eruption, {G}eophys. {R}es. {L}ett., 36, {L}24305, doi: 10.1029/2009{GL}041273.},
  keywords = {},
  booktitle = {},
  journal = {{G}eophysical {R}esearch {L}etters},
  volume = {36},
  numero = {},
  pages = {{L}24305},
  ISSN = {0094-8276},
  year = {2009},
  DOI = {10.1029/2009gl041273},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00004449},
}