Bermuda (officially, the Bermuda Islands or the Somers Isles) is a British overseas territory in the North Atlantic Ocean. Located off the east coast of the United States, its nearest landmass is Cape Hatteras, North Carolina, about 1,030 kilometres (640 mi) to the west-northwest. It is about 1,350 km (840 mi) south of Halifax, Nova Scotia, Canada, and 1,770 km (1,100 mi) northeast of Miami, Florida. Its capital city is Hamilton.
A caldera is a cauldron-like volcanic feature usually formed by the collapse of land following a volcanic eruption such as the ones at Yellowstone National Park in the US and Glen Coe in Scotland. They are sometimes confused with volcanic craters. The word comes from Spanish caldera, and this from Latin, meaning "cooking pot". In some texts the English term cauldron is also used. Calderas are formed out of stratovolcanoes.
Baekdu Mountain, also known as Changbai Mountain in China, is a volcanic mountain on the border between North Korea and China, located at 42°00′24″N 128°03′18″E / 42.00667°N 128.055°E / 42.00667; 128.055. At 2,744 m (9,003 ft), it is the highest mountain of the Changbai mountain range to the north and Baekdudaegan mountain range to the south. It is also the highest mountain on the Korean peninsula and Manchuria. The Korean name, Baekdu-san, means "white-headed mountain".
Deception Island is an island in South Shetland off the Antarctic Peninsula, which has one of the safest harbours in Antarctica. A recently active volcano in 1967 and 1969 caused serious damage to the local scientific stations. The only current research bases are run by the Argentine Army and Spain.
Laguna de Bay (Filipino: Lawa ng Bay; English: Laguna de Bay is the largest lake in the Philippines and the third largest freshwater lake in Southeast Asia after Tonle Sap in Cambodia and Lake Toba in Sumatra, Indonesia. It is on the island of Luzon between the provinces of Laguna to the south and Rizal to the north. Metro Manila lies on its western shore. Its surface area is 949 square kilometers and has an average depth of only about 2 meters.
Emi Koussi is a high pyroclastic shield volcano that lies at the south end of the Tibesti Mountains in the central Sahara of northern Chad. It is the highest mountain in Chad, and the highest in the Sahara. The volcano is one of several in the Tibesti massif, and reaches 3445 m in altitude, rising 2.3 km above the surrounding sandstone plains. The volcano is 60 by 80 km wide. Two nested calderas cap the volcano, the outer one being about 12 by 15 km in size.
Heaven Lake (Ch'ŏnji or Cheonji in Korean; 天池 in Chinese) is a crater lake on the border between China and North Korea. It lies within a caldera atop the volcanic Baekdu Mountain, a part of the Baekdudaegan mountain range and the Changbai mountain range. It is located partly in Ryanggang Province, North Korea, at 42°00′22″N 128°03′25″E / 42.006°N 128.057°E / 42.006; 128.057, and partly in Jilin Province, northeastern China.
Corvo Island is the smallest and the northernmost island of the Azores Archipelago and the northernmost in Macaronesia, with a population of approximately 468 inhabitants (2006) constituting the smallest single municipality in Azores and in Portugal.
Mount Pinatubo is an active stratovolcano located on the island of Luzon, at the intersection of the borders of the Philippine provinces of Zambales, Tarlac, and Pampanga. It is located in the Tri-Cabusilan Mountain range separating the west coast of Luzon from the central plains, and is 42 km (26 mi) west of the dormant and more prominent Mount Arayat, occasionally mistaken for Pinatubo. Ancestral Pinatubo was a stratovolcano made of andesite and dacite.
Krafla is a caldera of about 10 km in diameter with a 90 km long fissure zone, in the north of Iceland in the Mývatn region. Its highest peak reaches up to 818 m; it has erupted 29 times and it is 2 km in depth. Krafla includes one of the two best-known Víti craters of Iceland (the other is in Askja). The Icelandic word "víti" means "hell". In former times, people often believed hell to be under volcanoes. The crater Víti has a green lake inside of it.
The Santa Ana Volcano or Ilamatepec is a large stratovolcano located in the Santa Ana department of El Salvador. At 2,381 metres above sea level, it is the highest volcano in the country. It is located immediately west of Coatepeque Caldera. The summit of Santa Ana features four nested calderas and volcanic craters, with the innermost containing a small crater lake.
Ambrym is an island in the archipelago of Vanuatu (formerly known as the New Hebrides). It is well known for its highly active volcanic activity that includes lava lake formation. With 677.7 square kilometres (261.7 sq mi) of surface area, it is the fifth largest island in the country. Several times per century, Ambrym volcano has destructive eruptions. The summit of the volcano contains a desert-like caldera which covers an area of 100 square kilometres (39 sq mi).
Lake Atitlán (Lago de Atitlán) is a large endorheic lake (one that does not flow to the sea) in the Guatemalan Highlands. While Atitlan is recognized to be the deepest lake in Central America, its bottom has not been completely sounded. Estimates of its maximum depth range up to 340 meters. The lake is shaped by deep escarpments which surround it and by three volcanos on its southern flank. Lake Atitlan is further characterized by towns and villages of the Maya people.
Ulleungdo is a South Korean island in the Sea of Japan (East Sea). Formerly known as Dagelet to the Europeans, Ulleungdo is about 120 km (75 mi) east of the Korean Peninsula. Volcanic in origin, the rocky steep-sided island is the top of a large stratovolcano which rises from the seafloor, reaching a maximum elevation of 984 metres (3,228 ft) at Seonginbong Peak. The island consists primarily of trachyandesite rock.
Sete Cidades ("Seven Cities") is one of the most beautiful natural settings in the Azores, composed of two lakes in the center of a volcanic crater about three miles across. Located on the west side of São Miguel Island, it is the most popular national park in the islands. The direction of the lake as of the photo runs from northeast to southwest and is 5 km in length and about 1 to 2 km in width. This volcano is one of the most active in the Azores in the last 5,000 years.
El Altar is an extinct volcano on the western side of Sangay National Park in Ecuador, 170 km south of Quito. Spaniards named it as such as it resembled a huge cathedral to them. The Inca called it Capac-Urcu, which means "King Mountain" in Quechua.
Masaya is a shield volcano located 20 km south of Managua, Nicaragua. It is Nicaragua's first and largest National Park, and one of 78 protected areas of Nicaragua. The volcanic complex is composed of a nested set of calderas and craters, the largest of which is Las Sierras shield volcano and caldera. Within this caldera lies Masaya Volcano sensu stricto, a shallow shield volcano composed of basaltic lavas and tephras.
Faial Island, also known in English as Fayal, is a Portuguese island of the Central group (Grupo Central) of the Azores. Its area is 173 km² and it is located 28.7° W longitude and 38.6° N latitude. The nearest island is Pico Island to the east. The island is also referred to as Ilha Azul (the "Blue Island"), by poet Raul Brandão, due to the large quantity of Hydrangeas that bloom during the summer months.
Cabeço Gordo (Portuguese for "fat mountain") is the highest mountain and massive stratovolcano that makes up the island of Faial in the Azores. It has a large 2-km wide caldera that extends to a depth of 400 m below the rim. Although the central volcano has not been active within the past two centuries, it has seen activity related to the eruption of Capelinhos (1957–58). During this period, fumaroles in the caldera became active, and the minor lakes in the base dried-up.
The Ngorongoro Conservation Area or NCA is a conservation area situated 180 km (112 miles) west of Arusha in the Crater Highlands area of Tanzania. The conservation area is administered by the Ngorongoro Conservation Area Authority, an arm of the Tanzanian government, and its boundaries follow the boundary of the Ngorongoro Division of Ngorongoro District. The Ngorongoro Crater is within the area; this is a large volcanic caldera.
Galeras (Urcunina among the 16th-century indigenous people) is an Andean stratovolcano in the Colombian department of Nariño, near the departmental capital Pasto. Its summit rises 4,276 metres (14,029 ft) above sea level. It has erupted frequently since the Spanish conquest, with its first historical eruption being recorded on December 7, 1580. A 1993 eruption killed nine people, including six scientists who had descended into the volcano's crater to sample gases.
Mount Andrus is a shield volcano 3.2 km (2 mi) SE of Mount Boennighausen in the SE extremity of Ames Range, in Marie Byrd Land, Antarctica. Mapped by USGS from surveys and U.S. Navy air photos, 1964-68. Named by US-ACAN for Lt. Carl H. Andrus, US Navy, medical officer and Officer-in-Charge of Byrd Station in 1964. Andrus has a 4.5 km-wide caldera at its summit. Weak fumarolic activity was detected in 1977 at Mt. Kaufmann in the northern end of the Ames Range of which Mt.
Mount Berlin is the sixth highest volcano in Antarctica, located 16 km west of Mount Moulton in Marie Byrd Land near the eastern coast of the Ross Sea. It is composed of two coalesced shield volcanoes: Marren Peak and Berlin Crater. The volcanic structure is considered active, as steaming fumaroles have been observed near the rim of the northern and western calderas, producing fumarolic ice towers.
Mount Sidley is the highest volcano in Antarctica, a member of the Volcanic Seven Summits. It is a massive, mainly snow-covered shield volcano which is the highest and most imposing of the five extinct volcanic mountains that comprise the Executive Committee Range of Marie Byrd Land. The feature is marked by a spectacular 5 km wide caldera on the southern side and stands NE of Mount Waesche in the southern part of the range. The mountain was discovered by Rear Admiral Richard E.