The island consists of a large shield volcano similar in form to the Hawaiian volcanoes. Savaiʻi remains volcanically active, with recent eruptions from Matavanu between 1905 and 1911. The Matavanu eruptions flowed towards the central north coast and destroyed villages including Saleaula. Other recent volcanic eruptions include Mata o le Afi in 1902 and Mauga Afi in 1725. The lava field at Saleaula are extensive enough to be visible in high altitude photographs.