The absolute motion of the nazca plate has been calibrated at 3.7 cm/yr east motion (88 celcios) , one of the fastest absolute motions of any tectonic plate.The subducting nazca plate , which exhibits unusual flat-slab subdution ,is tearing as well as deforming as it is subducted.The subduction has formed,and continues to from,the volcanic andes mountain range.Deformation of the Nazca plate even affects the geography of Bolivia,far to the east.It was on the 1994 Bolivia earthquake occurred,which at that time was the strongest instrumentally recorded earthquake occurring deeper than 300 km.