The Río de la Miel fault shows a complex movement history. Three main displacement stages have been distinguished from the microtectonic analysis. The first stage was a dextral strike-slip movement whose cr, was almost horizontal with, a NNW-SSE direction. The second stage was a normal movemént with cr, situated in the vertical. Finally, in the third stage, cr, had a low dipping angle and a NNE-SSW direction. The vertical displacement of the fault reach several hundreds of metres, probably more than 500. m. This fault has been active at least during the lower Pliocene