The island of Pascua has a recent volcanic origin (Plio-Pleistocene), and it's structure is dominated by three big volcanoes, the Maunga Terevaka (511 meters above sea level), Poike (370 masl) and Rano Kao (400 masl), and about 70 smaller crater of a parasitic kind such the Rano Raraku, Puna Pau, Maunga Orito and the Rano Aroi. The grounds of the island have a volcanic origin and have slight undulations with hard cliffs in some edges to the sea, specially in the edges of the Rano Kao and Poike volcanoes.
