At least eight people were killed and six injured following a 5.1-magnitude earthquake which jolted southern parts of Peru, authorities said Sunday.The temblor hit Paruro province in the Andean region of Cusco late Saturday night, Xinhua quoted the Geophysical Institute of Peru as saying.The victims were all from the community of Misca, where some 60 houses collapsed and around 300 people were affected, Peru National Institute of Civil Defence said.