THE ZAFARRAYA FAULT IN THE FRAME OF THE ACTIVE TECTONIC STRUCTURES OF THE CENTRAL BETIC CORDILLERA (SOUTHERN SPAIN)

Abstract

Tue internal zones of the Betic Cordilleras are deformed since Middle Miocene by k:ilometre-sized E-W oriented folds coeval with fault development. Faults are generally normal in the central trans­ect. The Zafarraya Fault, responsible for the 1884 Andalucfa Earthquak:e, is located at the northem limb of the Sierra Tejeda anti­form, and could be interpreted as a collapse structure developed along the extemal arch of the uplifted fold. Tue set up of a GPS net­work in the Sierra Tejeda will allow us to study the present-day deformation relationships of folds and faults in the area.