@article{fdi:010093348,
  title = {2023-2024 inflation-deflation cycles at {S}vartsengi and repeated dike injections and eruptions at the {S}undhnukur crater row, {R}eykjanes {P}eninsula, {I}celand},
  author = {{P}arks, {M}. and {D}rouin, {V}. and {S}igmundsson, {F}. and {H}jartardóttir, {A}. {R}. and {G}eirsson, {H}. and {P}edersen, {G}. {B}. {M}. and {B}elart, {J}. {M}. {C}. and {B}arsotti, {S}. and {L}anzi, {C}. and {V}ogfj{\¨o}rd, {K}. and {H}ooper, {A}. and {O}feigsson, {B}. and {H}reinsdóttir, {S}. and {G}estsson, {E}. {B}. and {P}rastarson, {R}. {H}. and {E}inarsson, {P}. and {T}olpekin, {V}. and {R}otheram-{C}larke, {D}. and {G}unnarsson, {S}. {R}. and {O}skarsson, {B}. and {P}inel, {V}irginie},
  editor = {},
  language = {{ENG}},
  abstract = {{S}eries of inflation-deflation cycles have occurred during 2020-2024 in the center of the {S}vartsengi volcanic system, {SW}-{I}celand. {S}ince 27 {O}ctober 2023, continuous inflation has been interrupted by deflation periods when nine dike injections and seven eruptions have occurred from 10 {N}ovember 2023 to 8 {D}ecember 2024 at the {S}undhn & uacute;kur crater row and its extension. {E}xtensive observations of ground deformation using {GNSS} ({G}lobal {N}avigation {S}atellite {S}ystem) geodesy and interferometric analysis of synthetic aperture satellite ({I}n{SAR}) images is here used to improve understanding of the dynamics of magma accumulation and transfer, both prior to and during repeated rifting events. {J}oint inversions of the {GNSS} and {I}n{SAR} data, considering a deformation source within a uniform elastic half-space, infer pressure changes at about 4-5 km depth near the regional brittle-ductile boundary, with inflow causing volume increase rates of 2.4-9 m(3)/s. {G}eodetic modelling using {GNSS} has been undertaken in near real-time throughout the events, using deformation sources in fixed locations inferred in earlier joint inversions. {T}he deflation periods began rapidly when a dike propagated from the eastern edge of the magma accumulation area. {T}he estimated volume of dikes is in the range (1-133) x 10(6) m(3), with the first event being by far the largest and longest (similar to 15 km). {G}eodetic observations have contributed to success in forecasting diking/eruption onset in the medium and short term, using the expectation that a correlation exists between volume loss in the magma domain during a deflation event and subsequent volume recharge to the system before the next event is triggered.},
  keywords = {{S}vartsengi volcanic system ; {S}undhnukur volcanic eruptions ; {R}epeated dike intrusions ; {I}nflation-deflation cycles ; {E}ruption forecasting ; {R}eykjanes {P}eninsula ; {ISLANDE} ; {REYKJANES} {PENINSULE}},
  booktitle = {},
  journal = {{E}arth and {P}lanetary {S}cience {L}etters},
  volume = {658},
  numero = {},
  pages = {119324 [15 p.]},
  ISSN = {0012-821{X}},
  year = {2025},
  DOI = {10.1016/j.epsl.2025.119324},
  URL = {https://www.documentation.ird.fr/hor/fdi:010093348},
}