An active zone characterized by slow normal faults, the northwestern margin of the València trough (NE Iberia): a review

Abstract

An active zone characterized by slow normal faults, the northwestern margin of the València trough (NE Iberia): a review Abstract The northwestern margin of the Valencia trough is an area of low strain characterized by slow normal faults and low to moderate seismicity. Since the mid 1990s this area has been the subject of a number of studies on active tectonic which have proposed different approaches to the location of active faults and to the calculation of the parameters that describe their seismic cycle. Fifty-six active faults have been found and a classification has been made in accordance with their characteristics: a) faults with clear evidence of large paleo-, historic or instrumental earthquakes (2/56); b) faults with evidence of accumulated activity during the Plio-Quaternary and with associated instrumental seismicity (7/56); c) faults with evidence of accumulated activity during the Plio-Quaternary and without associated instrumental seismicity (17/56); d) faults with associated instrumental seismicity and without evidence of accumulated activity during the Plio-Quaternary (30/56), and e) faults without evidence of activity or inactive faults. The parameters that describe the seismic cycle of these faults have been evaluated by different methods that use the geological data obtained for each fault except when paleoseismological studies were available. This classification can be applied to other areas with low slip faults because of the simplicity of the approaches adopted. This study reviews the different approaches proposed and describes the active faults located, highlighting the need a) to better understand active faults in slow strain zones through paleoseismological studies, and b) to include them in seismic hazard studies.

Plio-Quaternary uplift of the Iberian Chain (central–eastern Spain) from landscape evolution experiments and river profile modeling

“…It is low to moderate and mostly concentrated in the intermontane basins (Gutiérrez et al, 2009(Gutiérrez et al, , 2012Lafuente et al, 2011b;Simón et al, 2012) and along the western margin of the Valencia Through (Perea et al, 2012;Simón et al, 2013).…”

Active Tectonics of the Pyrenees: A review

“…Mazamet Fault) or the Catalan Coastal Ranges (faults in the Vallès-Penedès) neither the Amer Fault (Fig. 3) (Perea et al, 2012).…”

The Diffuse Plate boundary of Nubia and Iberia in the Western Mediterranean: Crustal deformation evidence for viscous coupling and fragmented lithosphere

“…6). Seismic reflection profiles and bathymetric surveys carried out acrossCatalan coastal range and the northwestern margin of the trough and contraction structures along 307 the Baleares promontory (e.g., Perea et al, 2012). Geological evidence of Holocene activity on 308 these faults suggests that they can accommodate the observed left-lateral motion between the 309 Baleares promontory and the Catalan coastal range (Perea et al, 2012).…”