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GEOGRAPHY OF VANUATU
Vanuatu is an island nation in the southwestern Pacific Ocean consisting of approximately 83 islands, of which about 65 are inhabited. Its total land area is about 12,189 square kilometers (4,706 square miles). The islands extend in a north-south chain for about 1,300 kilometers (810 miles). Vanuatu’s maritime territory covers an Exclusive Economic Zone (EEZ) area of approximately 860,000 square kilometers (332,046 square miles), which is about twice the size of California or Morocco.
Vanuatu is about three-quarters of the way from Hawaii to Australia and is comprised of am irregular Y-shaped chain of four main islands and 80 smaller islands; several of the islands have active volcanoes. There are several underwater volcanoes too. The archipelago is relatively narrow compared with its length. Most islands are separated by deep ocean channels and straits.
The islands vary greatly in size and shape. Espiritu Santo is the largest island, covering about 3,955 square kilometers (1,527 square miles). Other major islands include Malakula, Efate, Erromango, Tanna, Pentecost, and Ambrym. Numerous smaller islands, coral islets, and volcanic outcrops are scattered throughout the archipelago. Vanuatu's capital city, Port-Vila, is located on the island of Éfaté.
Most of the islands are volcanic in origin and mountainous. Coral reefs surround many coastlines and create sheltered lagoons and marine habitats. Rivers are generally short because of the steep terrain. The combination of mountains, forests, reefs, and ocean gives Vanuatu a diverse natural landscape.
Vanuatu is part of Melanesia — subregion of Oceania stretching from the western Pacific to the Arafura Sea, between northern Australia and southern New Guinea, characterized by darker-skinned indigenous populations (such as in Fiji, Papua New Guinea, Vanuatu, and the Solomon Islands). The other main region in the South Pacific Ocean is Polynesia — a vast triangular subregion of Oceania (the "Polynesian Triangle") with Hawaii, New Zealand, and Easter Island at each corner and containing places like Tahiti, French Polynesia, Samoa, Tonga, Kirabati and Tuvalu. Polynesians are closely-related peoples who share similar languages, seafaring traditions, and social structures.
Administrative Divisions: 6 provinces; Malampa, Penama, Sanma, Shefa, Tafea, Torba. [Source: CIA World Factbook 2023]
Location of Vanuatu
Vanuatu is located in the southwestern Pacific Ocean in the region known as Melanesia. It lies between the Coral Sea to the west and the open Pacific Ocean to the east. The country is positioned just west of the Fiji Islands and east of Australia. It occupies an important location along the volcanic island arc of the South Pacific. Vanuatu lies within the tropical zone of the Southern Hemisphere. The islands are exposed to southeast trade winds for much of the year. Their position also places them within a region frequently affected by tropical cyclones.
Vanuatu is part of of Oceania, a vast geographical and geopolitical region centered on the Pacific Ocean, comprising the continent of Australia, the microcontinent of Zealandia (New Zealand), and thousands of islands. Coined in 1831, it functions as one of the world's seven continents spanning a total area of over 8.3 million square kilometers (3.2 million square miles).
The nearest large country is Australia. Port Vila, the capital of Vanuatu, is approximately 1,750 kilometers (1,090 miles) east of Brisbane, Australia. New Caledonia, a French territory, lies about 540 kilometers (335 miles) southwest of Vanuatu. The Solomon Islands are located to the northwest. Fiji lies approximately 800 kilometers (500 miles) east of Vanuatu. Papua New Guinea is located roughly 1,500 kilometers (930 miles) to the northwest. New Zealand lies about 2,200 kilometers (1,370 miles) to the south-southwest. The islands are also connected by shipping and air routes to other Pacific nations.
Geographical Data for Vanuatu
Area: total: 12,189 square kilometers (4,706 square miles); land: 12,189 square kilometers (4,706 square miles); water: 0 square kilometers. The total land area is slightly more than than Connecticut, the Bahamas or Qatar. Vanuatu is the 39th smallest country in the world. Geographic Coordinates: 16 00 S, 167 00 E. Elevation: highest point: Tabwemasana 1,877 meters (6,158 feet); lowest point: Pacific Ocean 0 meters.[Source: CIA World Factbook]
Maritime Claims: territorial sea: 22.2 kilometers (12 nautical miles; 13.8 miles); contiguous zone: 44.4 kilometers (24 nautical miles; 27.6 miles); exclusive economic zone: 370.4 kilometers (200 nautical miles; 230.2 miles); continental shelf: 370.4 kilometers (200 nautical miles; 230.2 miles) or to the edge of the continental margin measured from claimed archipelagic baselines. Land Boundaries: total: 0 kilometers.
Geologic map of Vanuatu; Gaua island is labeled with its alternate name, Santa Maria (Gaua volcano is also called Mont-Geret); The volcano Ambae is situated on Aoba island; the volcano Ambrym, on Ambrym island; and the volcano Yasur, on Tanna island; The key shows basic igneous and metamorphic rock units; Those islands containing older Tertiary rocks have resulted from differential elevation of fault bounded blocks Researchgate
Land Use: agricultural land: 15.3 percent (2018 estimate). Arable Land: 1.6 percent (2018 estimate); permanent crops: 10.3 percent (2018 estimate); permanent pasture: 3.4 percent (2018 estimate); forest: 36.1 percent (2018 estimate); other: 48.6 percent (2018 estimate). Arable land is land cultivated for crops like wheat, maize, and rice that are replanted after each harvest. Permanent crops is land cultivated for crops like fruit trees oranges that are not replanted after each harvest. Irrigated Land: 0 square kilometers (0 square miles) (2022). [Source: CIA World Factbook]
Islands and Atolls
Ocean islands are basically divided into three types: 1) "low" coral and sand islands; 2) "high" islands (usually exposed peaks and ridge-tops of submerged mountains and volcanoes); and 3) parts of the continental shelf. Some continental islands were mountains and hills along the coast during last Ice Age when ocean levels were lower.
Low islands or cays were formed on coral shoals from reef sediments. Atoll islands are low islands (See Below). Seabird dropping fertilize the soils of some of these islands, which allow scrubby forest to take root. Others are battered regularly by storms and are little more than shifting piles of sand. Some patches of sand are so low they disappear during low tide and lose their status as islands.
High islands generally have better soil and a better supply of water than low islands. Low islands support only a few species of plant because there little topsoil and this soil has a high salt content. Although they often have no visible water sources they often are positioned over water lenses that trap rain water and can provide fresh water through wells.
An atoll is a group of islands that encircle a central lagoon. Classic atolls develop on the top guyots, flat-topped volcanic sea mounts, that rise above the sea and then erode and sink under the weight of the coral reefs that grow on their slopes. A classic atolls begins as a reef that forms around a high island. As the island sinks under the weight of the coral reef, the coral reef grows upwards causing the island to sink even more. This process eventually forms a barrier reef which is separated from the shore by a shallow lagoon. Eventually the original mountain becomes completely submerged and islands are created from the coral and sand deposits that accumulate on the highest points of the reef. These islands often roughly follow the contour of the original mountain top. The atoll-making process takes hundreds of thousands or millions of years.
See Separate Article: ISLANDS: TYPES, HOW THEY FORM, FEATURES AND NATIONS ioa.factsanddetails.com
Topography of Vanuatu
:Satellite image of Vanuatu in October 1998
Vanuatu is comprised of mostly mountainous islands of volcanic origin with narrow coastal plains. Most of the larger islands contain steep volcanic mountains, narrow coastal plains, and deeply cut river valleys. The terrain rises sharply from the coast in many areas. Flat land is relatively limited compared with the total area of the country. In addition to Mount Tabwemasana on Espiritu Santo, the highest mountain in Vanuatu at 1,879 meters (6,165 feet) there are other significant peaks, including mountains on Malakula, Ambrym, Tanna, and Ambae. Many of these mountains were formed by volcanic activity.
The islands contain a variety of landforms. These include volcanic cones, calderas, lava plateaus, limestone terraces, crater lakes, and river valleys. Active volcanoes are present on several islands, including Tanna, Ambrym, and Ambae. Volcanic activity continues to shape the landscape today.
Coastal features include sandy beaches, rocky cliffs, bays, peninsulas, mangrove areas, and coral-fringed lagoons. Rivers are generally short but can be fast-flowing during periods of heavy rainfall. Fertile valleys occur near river systems and volcanic slopes. These areas support many villages and agricultural activities.
Volcanoes: significant volcanic activity with multiple eruptions in recent years; Yasur (361 meters), one of the world's most active volcanoes, has experienced continuous activity in recent centuries; other historically active volcanoes include Aoba, Ambrym, Epi, Gaua, Kuwae, Lopevi, Suretamatai, and Traitor's Head
Geology and Land Cover of Vanuatu
Vanuatu is part of the New Hebrides Island Arc, one of the most active geological regions in the Pacific. The islands were formed by the subduction of the Australian Plate beneath the Pacific Plate. This tectonic process has created volcanoes, earthquakes, uplifted coral reefs, and deep ocean trenches. Geological activity remains an important feature of the country.
The islands of Vanuatu were created by volcanoes that were pushed up form the floor of the Pacific Ocean. Most islands are composed of volcanic rocks such as basalt, andesite, and volcanic ash deposits. Some islands also contain raised limestone formations created from ancient coral reefs. Active volcanoes are found on several islands, including Mount Yasur on Tanna and volcanic centers on Ambrym, Ambae, and Gaua. Earthquakes occur frequently throughout the archipelago.
The country's land cover is dominated by tropical vegetation. Dense rainforests cover much of the larger islands, especially in mountainous and high-rainfall areas. Coastal forests, mangroves, grasslands, and secondary forests are also common. Many islands support rich biodiversity, including numerous native plant and animal species.
Agricultural land occupies a smaller portion of the total land area. Coconut plantations, cocoa farms, kava gardens, and subsistence crop fields are found throughout the islands. Villages and urban areas are concentrated mainly along the coast, particularly around Port Vila and Luganville. Despite agricultural development, a large percentage of Vanuatu remains covered by natural vegetation and forest ecosystems.
Image Sources: Wikimedia Commons
Text Sources: CIA World Factbook; “Encyclopedia of World Cultures, Volume 2: Oceania,” edited by Terence E. Hays, 1991, Wikipedia, New York Times, Washington Post, Los Angeles Times, Times of London, Lonely Planet Guides, Library of Congress, The Guardian, National Geographic, Smithsonian magazine, The New Yorker, Reuters, Associated Press, AFP, BBC, CNN, and various books, websites and other publications.
Last updated July 2026