@article{PAR00001607,
  title = {{C}rustal structure and magmato-tectonic processes in an active rift ({A}sal-{G}houbbet, {A}far, {E}ast {A}frica) : 2. {I}nsights from the 23-year recording of seismicity since the last rifting event},
  author = {{D}oubre, {C}. and {M}anighetti, {I}. and {D}orbath, {L}ouis and {D}orbath, {C}atherine and {B}ertil, {D}. and {D}elmond, {J}. {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {A}sal-{G}houbbet ( {AG}) {R}ift has sustained a major volcano-tectonic rifting episode in 1978 and has been subsequently monitored with continuous geodetic and seismological surveys. {I}t is therefore an ideal place to study the transient magmato-tectonic processes that operate after a rifting episode. {W}e examine the space-time evolution of similar to 2500 {M}d <= 2.8 earthquakes recorded in the rift from 1979 to 2001. {W}e focus on the relationships between this seismic activity and both the three-dimensional structure of the rift and its postrifting behavior depicted from geodesy. {T}he results highlight the major role of the central magmatic system ( {F}ieale-{S}hark {B}ay) on the structure, seismic activity, and overall behavior of the rift. {F}rom 1978 to 1986, the rift opens at a fast rate, yet mainly aseismically; the opening is magmatically driven and accommodated. {S}ince 1986, when the opening rate abruptly decreased, the seismicity is concentrated in the central part of the rift and reveals pulses of activity of the central volcanic system. {T}hese pulses result from that magmatic zone undergoing alternating stretching and inflating episodes. {T}hus, while the plate-driven induced stresses have been rebuilding in the rift since 1987, the rift opening is still essentially accommodated in the axial magmatic zone. {T}he {AG} {R}ift has thus sustained a postrifting unsteady opening over more than 23 years following its stretching episode. {T}hat transient opening has essentially occurred aseismically, and most tectonic faults remain relaxed and locked.},
  keywords = {{ETHIOPIE} ; {MER} {ROUGE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch {S}olid {E}arth},
  volume = {112},
  numero = {{B}5},
  pages = {art. no. {B}05406 [ {NIL}_46--{NIL}_77]},
  ISSN = {0148-0227},
  year = {2007},
  DOI = {10.1029/2006{JB}004333},
  URL = {https://www.documentation.ird.fr/hor/{PAR}00001607},
}