Government of Samoa first national communication to the UNFCCC / prepared by Samoa's National Climate Change Country team

The main topographical features of Samoa are rugged mountains of volcanic origin, surrounded by flat and rolling coastal plains. All the islands of Samoa were formed by volcanic activity. Savai'i is regarded as still volcanically active with its most recent eruption producing lava flows between 1905 and 1911. A large percentage of Samoan soils are porous, shallow and clay in texture.