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Journal of Geophysical Research B: Solid Earth 115 (2010) B04320
Comment on “Zemmouri earthquake rupture zone (Mw 6.8, Algeria): Aftershocks sequence relocation and 3D velocity model” by A. Ayadi et al.
Jacques Déverchère 1, 2, Bernard Mercier De Lépinay 3, A. Cattaneo 4, Pierre Strzerzynski 1, 5, Eric Calais 6, Anne Domzig 7, Rabah Bracene 8
(2010-04-30)

Although often difficult to characterize, the relationship between a seismic rupture, its aftershock sequence, and cumulative subsurface or surface faulting or folding is an important challenge to modern seismology and seismotectonics. Among other benefits, it helps document fault length, slip, and magnitude relationships, reconstruct the evolution of the rupture process through historical and prehistorical times and identify the complexity of the deformation in its path toward the surface. This approach is a prerequisite to any seismic hazard assessment but is particularly difficult for faults whose surface trace projects offshore. A specific effort to identify and quantify the source parameters of large earthquakes in coastal areas is therefore needed, not only in subduction zones but also in areas of slow rate and/or diffuse deformation.
1:  Domaines Océaniques
Institut Universitaire Européen de la Mer (IUEM) – Université de Bretagne Occidentale [UBO] – Observatoire des Sciences de l'Univers – CNRS : UMR6538
2:  Université Européenne de Bretagne (UEB)
PRES Université Européenne de Bretagne [UEB]
3:  Géoazur (GEOAZUR)
Université Nice Sophia Antipolis [UNS] – CNRS : UMR6526 – Institut de recherche pour le développement [IRD] – Observatoire de la Côte d'Azur – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI
4:  Laboratoire Environnements Sédimentaires, Ifremer
Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)
5:  Université Européenne de Bretagne (UEB)
PRES Université Européenne de Bretagne [UEB]
6:  Department of Earth and Atmospheric Sciences
Purdue University
7:  Midland Valley Exploration
Midland Valley Exploration
8:  Sonatrach Exploration
Sonatrach Exploration
Sciences of the Universe/Earth Sciences/Geophysics

Physics/Physics/Geophysics

Environmental Sciences/Global Changes
Boumerdès-Zemmouri earthquake
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