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Geography

Vanuatu is a Y-shaped archipelago consisting of about 83 relatively small, geologically newer islands of volcanic origin (65 of them inhabited), with about 1,300 kilometres (810 mi) between the most northern and southern islands. Two of these islands (Matthew and Hunter) are also claimed and controlled by France as part of the French collectivity of New Caledonia. The country lies between latitudes 13°S and 21°S and longitudes 166°E and 171°E.

The fourteen of Vanuatu's islands that have surface areas of more than 100 square kilometres (39 sq mi) are, from largest to smallest: Espiritu Santo, Malakula, Efate, Erromango, Ambrym, Tanna, Pentecost, Epi, Ambae or Aoba, Gaua, Vanua Lava, Maewo, Malo and Aneityum or Anatom. The nation's largest towns are the capital Port Vila, on Efate, and Luganville on Espiritu Santo. The highest point in Vanuatu is Mount Tabwemasana, at 1,879 metres (6,165 ft), on the island of Espiritu Santo.

Vanuatu's total area is roughly 12,274 square kilometres (4,739 sq mi), of which its land surface is very limited (roughly 4,700 square kilometres (1,800 sq mi)). Most of the islands are steep, with unstable soils and little permanent freshwater. One estimate, made in 2005, is that only 9% of land is used for agriculture (7% with permanent crops, plus 2% considered arable). The shoreline is mostly rocky with fringing reefs and no continental shelf, dropping rapidly into the ocean depths.

There are several active volcanoes in Vanuatu, including Lopevi, Mount Yasur and several underwater volcanoes. Volcanic activity is common, with an ever-present danger of a major eruption; a nearby undersea eruption of 6.4 magnitude occurred in November 2008 with no casualties, and an eruption occurred in 1945. Vanuatu is recognised as a distinct terrestrial ecoregion, which is known as the Vanuatu rain forests. It is part of the Australasian realm, which includes New Caledonia, the Solomon Islands, Australia, New Guinea and New Zealand.

Vanuatu's population (estimated in 2008 as growing 2.4% annually) is placing increasing pressure on land and resources for agriculture, grazing, hunting, and fishing. 90% of Vanuatu households fish and consume fish, which has caused intense fishing pressure near villages and the depletion of near-shore fish species. While well-vegetated, most islands show signs of deforestation. The islands have been logged, particularly of high-value timber, subjected to wide-scale slash-and-burn agriculture, and converted to coconut plantations and cattle ranches, and now show evidence of increased soil erosion and landslides.

Many upland watersheds are being deforested and degraded, and fresh water is becoming increasingly scarce. Proper waste disposal, as well as water and air pollution, are becoming troublesome issues around urban areas and large villages. Additionally, the lack of employment opportunities in industry and inaccessibility to markets have combined to lock rural families into a subsistence or self-reliance mode, putting tremendous pressure on local ecosystems. The country had a 2019 Forest Landscape Integrity Index mean score of 8.82/10, ranking it 18th globally out of 172 countries.