1,338 articles
Surtsey
Surtsey is a volcanic island about 32 km off Iceland's south coast, formed by eruptions from 1963 to 1967 and protected since birth as a pristine natural laboratory for studying biological colonization of new land.
Susan Island
Susan Island: name shared by several islands, chiefly a rainforest river island in the Clarence River at Grafton, NSW, Australia, and an official island in the Coast Land District, British Columbia; also islands in Guyana, the Philippines, and New York.
Svalbard
Svalbard, historically Spitzbergen, is a Norwegian Arctic archipelago more than 800 km north of the mainland, placed under Norwegian sovereignty by the Svalbard Treaty of 1920.
Swinburne Islet
Swinburne Islet is a small islet in North Coast Regional District, British Columbia, Canada, near Pacofi off Alford Point on Moresby Island, Haida Gwaii; elevation 9 m, used as a transit for anchorage in Pacofi Bay.
Sylt
Sylt is a North Sea barrier island in Schleswig-Holstein, Germany, up to 40 km long, famed for beaches, resorts, and the Sölring Frisian dialect. Its eroding west coast receives about 1.2 million m³ of nourishment sand yearly, 41.5 million m³ cumulatively from 1972 to 2011.
Tabarin Peninsula
Tabarin Peninsula: eastern extremity of Trinity Peninsula, northern Antarctic Peninsula, between Duse Bay and Antarctic Sound; named 1946 after Operation Tabarin; sites include Hope Bay and Esperanza Base.
Tablas Island
Tablas Island, formerly Osigan, is the largest island of Romblon province, Philippines, in the Sibuyan Sea between Mindoro and Panay; 693.74 km², nine municipalities, renamed Tablas by Loarca in 1582.
Table Island
Table Island, South Shetland Islands, Antarctica: island northwest of Fort William, Robert Island, at 62°20'34.8"S 59°48'29.7"W; charted by Bransfield in 1820 as Falcon Island and renamed by sealers for its shape.
Tahiti
Tahiti, largest island of French Polynesia in the Society Islands, South Pacific; capital Papeete, gateway airport Faa'a. Ceded to France by Pomare V in 1880; nuclear test site 1966–1996; major tourism hub.
Tail Island
Tail Island (Cola, isla) is a circular Antarctic island, 1.25 mi across and 130 m high, in NE Prince Gustav Channel, Trinity Peninsula, midway between Egg and Eagle Islands; charted by FIDS in 1945 and named for its position among Eagle, Beak, and Egg Islands.
Taimyr
Taimyr (Taymyr) is a peninsula and freshwater ecoregion in northern Siberia, Russia, between the Yenisei and Anabar drainages, draining to the Kara and Laptev seas. It holds Cape Chelyuskin, the Arctic's largest lake basin (Lake Taimyr, 4,560 km2), and the lake-dense Putorana Plateau.
Taitagan Island
Taitagan Island, Tawi-Tawi, Philippines (Cebuano and Filipino: Taitagan Island), a low 5-metre island in the Autonomous Region in Muslim Mindanao at 5.18°N, 120.05°E, near Languyan; distinct from a second Taitagan Islet in the Philippines.
Taitailei
Taitailei is an alternate name for the Taitao Peninsula (Península de Taitao), a Chilean peninsula in Aysén near the Chile Triple Junction, known for ridge subduction, the Taitao ophiolite, and its role as a biogeographic barrier.
Taiwan (landform)
Taiwan, called Formosa by 16th-century Portuguese sailors, is a mountainous island of about 36,000 square kilometers east of the Asian mainland, with more than 200 peaks above 3,000 meters.
Talaud Islands
Talaud Islands (Kepulauan Talaud), Indonesia's northernmost regency in North Sulawesi, capital Melonguane; three main islands Karakelang, Salibabu, Kabaruan; borders Mindanao, Philippines; created 2002; seismically active border region.
Taliabu
Taliabu (Pulau Taliabu) is an Indonesian island in North Maluku Province and the largest of the Sula Islands, covering 2,997.35 km²; its regency, separated from the Sula Islands Regency in 2012, began operating in 2013.
Tanaga Island
Tanaga Island, an uninhabited Andreanof island in the central Aleutians about 100 km west of Adak, hosts the Tanaga volcanic cluster: Sajaka, Tanaga (1,806 m, last erupted 1914), and Takawangha, sources of 2023 earthquake swarms and ash hazards to aircraft.
Tanega Shima
Tanega Shima (Tanegashima, 種子島) is a Kagoshima Prefecture island south of Kyushu, Japan, where Portuguese castaways introduced firearms in 1543 and where the Tanegashima Space Center now stands; distinct from a small namesake island in Ishikawa Prefecture.
Tanimbar Islands
The Tanimbar Islands are a group of islands in the Moluccas, Maluku Province, Indonesia, with Yamdena the largest, known for endemic birds such as the Tanimbar corella.
Tanna
Tanna (Tafea Province, Vanuatu), southern island home to Mount Yasur, a 361 m volcano erupting since 1774; about 30,000 people, kastom villages, John Frum movement, Blue Cave, Whitegrass Airport.
Tapatu Island
Tapatu Island, also called Etapaturau Island, is a small unoccupied island in the Mussau group, New Ireland Province, Papua New Guinea, near Sagil and Boliu, at 1°30′54″S, 149°39′32″E, elevation 4 m.
Tarawa
Tarawa: atoll in the Gilbert Islands, Kiribati, home to South Tarawa, the capital holding about half of Kiribati's population; site of the 1943 Battle of Tarawa.
Tashirojima (田代島)
Tashirojima (田代島), called Cat Island, is a small fishing island in Ishinomaki, Miyagi, Japan, where over 100 free-roaming cats outnumber about 50 residents; it has a cat shrine, no dogs allowed, and ferry-only access.
Tavolara Island
Tavolara Island (Isola di Tavolara), a 560 m limestone-granite island off northeast Sardinia in the Tavolara-Punta Coda Cavallo Marine Protected Area (1997), famed as the 'smallest kingdom in the world' under the Bertoleoni family since 1836.
Taygonos
Taygonos (Полуостров Тайгонос), a ~200 km peninsula in Magadan Oblast, Russia, between Gizhigin and Penzhina bays of the Sea of Okhotsk; Taynynot Range to 1,483 m, accreted terranes, Koryak herders, placer gold mining.
Taymyr Peninsula
Taymyr (Taimyr) Peninsula, northernmost continental land of Eurasia between the Kara and Laptev seas; Cape Chelyuskin, Byrranga Mountains, continuous permafrost, Dolgan and Nenets reindeer herders, and large Arctic nature reserves.
Taz Peninsula
Taz Peninsula (Тазовский полуостров), a ~20,000 km² flat Arctic peninsula in Yamalo-Nenets Okrug, West Siberia, between Ob Bay and Taz Bay; continuous permafrost, pingos, gas fields, and Taz River mouth history.
Tehuantepec
Tehuantepec (Istmo de Tehuantepec) most often refers to the isthmus in southern Mexico, only 200 km wide at its narrowest, the shortest Atlantic–Pacific land crossing in the country.
Tenerife
Tenerife, largest and most populous Canary Island (962,343 residents, 2025), home to Spain's highest peak Teide (3,718 m), Teide National Park (UNESCO 2007), conquered from the Guanches in 1496, and a major tourism destination with 7.56 million visitors in 2025.
Teraina
Teraina (Washington Island) is a 14.2 km² coral atoll in Kiribati's Northern Line Islands, unusual for its freshwater lake, high rainfall, endangered Rimatara Lorikeet population, and copra economy.