@article{fdi:010087405,
  title = {{S}eismic and aseismic slip during the 2006 {C}opiapo swarm in {N}orth-{C}entral {C}hile},
  author = {{O}jeda, {J}. and {M}orales-{Y}anez, {C}. and {D}ucret, {G}. and {R}uiz, {S}. and {G}randin, {R}. and {D}oin, {M}. {P}. and {V}igny, {C}. and {N}ocquet, {J}ean-{M}athieu},
  editor = {},
  language = {{ENG}},
  abstract = {{E}arthquake swarms commonly occur along the {C}hilean subduction zone, witnessing fast seismic and slow aseismic slip behavior at the plate interface. {H}owever, the largest seismic swarms observed in {C}hile, particularly in the {C}opiapo-{A}tacama region, remain poorly documented, and the underlying processes have yet to be understood. {H}ere, we perform seismological and geodetic analyses to investigate the 2006 {C}opiapo swarm, which developed in {A}pril and {M}ay 2006. {T}he swarm began on {A}pril 19, with a magnitude {M}l 5.3 earthquake. {D}uring the nine following days, we observe a migration of seismicity along the plate interface, the occurrence of doublets events, and a potential slow slip event in the {GPS} time series at site {C}opiapo. {T}hen, on {A}pril 30, a first earthquake with {M}w 6.6 occurred at 15 km depth at the plate contact. {I}t likely triggered a second earthquake of magnitude {M}w 6.5, which occurred 144 min later, 10 km northwest of the first earthquake. {U}sing {I}n{SAR}, we determined the slip distribution associated with these two earthquakes and detailed the postseismic slip they triggered in the next days and weeks. {T}his "postseismic"phase appears to be predominantly aseismic, while the moment released during the "coseismic"phase is comparable to other seismic crises that occurred in {A}tacama. {A}lthough we did not find a larger seismic and aseismic ratio than in other swarms in {S}outh {A}merica, we suggest a similar mechanism of slow deformation as a driver of seismicity during seismic swarms. {F}inally, we propose that the slow and fast behavior of the 2006 {C}opiapo swarm is a consequence of the subduction of the {C}opiapo {R}idge seamounts, which affects both the plate interface and the overriding plate by inducing complex interactions between seismic and aseismic processes.},
  keywords = {{S}eismic swarm ; {S}hort term slow slip event ; {A}seismic deformation ; {S}ubduction zone processes ; {C}opiapo ; {C}hile ; {CHILI} ; {ATACAMA} ; {COPIAPO}},
  booktitle = {},
  journal = {{J}ournal of {S}outh {A}merican {E}arth {S}ciences},
  volume = {123},
  numero = {},
  pages = {104198 [13 p.]},
  ISSN = {0895-9811},
  year = {2023},
  DOI = {10.1016/j.jsames.2023.104198},
  URL = {https://www.documentation.ird.fr/hor/fdi:010087405},
}