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dc.contributor.authorGalindo-Zaldívar, Jesús-
dc.contributor.authorErcilla, Gemma-
dc.contributor.authorEstrada, Ferran-
dc.contributor.authorSanz de Galdeano, Carlos-
dc.contributor.authorAlonso, Belén-
dc.contributor.authorGil, Alejandro J.-
dc.date.accessioned2018-11-26T09:49:18Z-
dc.date.available2018-11-26T09:49:18Z-
dc.date.issued2018-08-
dc.identifierdoi: 10.1029/2017TC004941-
dc.identifierissn: 0278-7407-
dc.identifiere-issn: 1944-9194-
dc.identifier.citationTectonics 37: 2513-2530 (2018)-
dc.identifier.urihttp://hdl.handle.net/10261/172636-
dc.descriptionGalindo-Zaldívar, Jesús ... et al.-- 18 pages, 10 figures-
dc.description.abstractThe Eurasian-African NW-SE oblique plate convergence produces shortening and orthogonal extension in the Alboran Sea Basin (westernmost Mediterranean), located between the Betic and Rif Cordilleras. A NNE-SSW broadband of deformation and seismicity affects the Alboran central part. After the 1993–1994 and 2004 seismic series, an earthquake sequence struck mainly its southern sector in 2016–2017 (main event M = 6.3, 25 January 2016). The near-surface deformation is investigated using seismic profiles, multibeam bathymetry, gravity and seismicity data. Epicenters can be grouped into two main alignments. The northern WSW-ENE alignment has reverse earthquake focal mechanisms, and in its epicentral region recent mass transport deposits occur. The southern alignment consists of a NNE-SSW vertical sinistral deformation zone, with early epicenters of higher-magnitude earthquakes located along a narrow band 5 to 10-km offset westward of the Al Idrisi Fault. Here near-surface deformation includes active NW-SE vertical and normal faults, unmapped until now. Later, epicenters spread eastward, reaching the Al Idrisi Fault, characterized by discontinuous active NNE-SSW vertical fractures. Seismicity and tectonic structures suggest a westward propagation of deformation and the growth at depth of incipient faults, comprising a NNE-SSW sinistral fault zone in depth that is connected upward with NW-SE vertical and normal faults. This recent fault zone is segmented and responsible for the seismicity in 1993–1994 in the coastal area, in 2004 onshore, and in 2016–2017 offshore. Insights for seismic hazard assessment point to the growth of recent faults that could produce potentially higher magnitude earthquakes than the already formed faults-
dc.description.sponsorshipThis study was supported by the Spanish projects INCRISIS, DAMAGE (CGL2016‐80687‐R AEI/FEDER) and FAUCES (CTM2015‐65461‐C2‐1‐R), RNM 148 ‐ Junta de Andalucía, and Marlboro cruises. French program Actions Marges, the EUROFLEETS program‐SARAS cruise (FP7/2007‐2013; 228344). The participation of D. Palomino and J. T. Vazquez was funded by the IEO project RIGEL-
dc.publisherAmerican Geophysical Union-
dc.relationMINECO/ICTI2013-2016/CTM2015-65461-C2-2-R-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccessen_EN
dc.titleImaging the Growth of Recent Faults: The Case of 2016-2017 Seismic Sequence Sea Bottom Deformation in the Alboran Sea (Western Mediterranean)-
dc.typeartículo-
dc.relation.publisherversionhttps://doi.org/10.1029/2017TC004941-
dc.embargo.terms2019-02-28-
dc.date.updated2018-11-26T09:49:18Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.rights.licensehttps://publications.agu.org/author-resource-center/usage-permissions/-
dc.contributor.funderInstituto Español de Oceanografía-
dc.contributor.funderJunta de Andalucía-
dc.contributor.funderMinisterio de Economía y Competitividad (España)-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100003329es_ES
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