Although there are no active volcanoes in the continental territory of Portugal, apart from geological remnants of ancient volcanism, the Portuguese Atlantic island possessions have a long history of active volcanism. The following is a list of active and extinct volcanoes in the Portuguese territories of the Azores and Madeira.
Name | Metres | Feet | Location | Island | Coordinate | Last eruption |
---|---|---|---|---|---|---|
Pico do Arieiro | 1818 | 5,965 | Planalto da Madeira | Madeira | 32°44′08″N16°55′44″W / 32.73556°N 16.92889°W | — |
Pico Ruivo | 1862 | 6,109 | Planalto da Madeira | Madeira | 32°45′31″N16°56′32″W / 32.75861°N 16.94222°W | — |
Pico das Torres | 1853 | 6,079 | Planalto da Madeira | Madeira | 32°44′59″N16°56′19″W / 32.74972°N 16.93861°W | — |
The Azores, officially the Autonomous Region of the Azores, is one of the two autonomous regions of Portugal. It is an archipelago composed of nine volcanic islands in the Macaronesia region of the North Atlantic Ocean, about 1,400 km (870 mi) west of Lisbon, about 1,500 km (930 mi) northwest of Morocco, and about 1,930 km (1,200 mi) southeast of Newfoundland, Canada.
Portugal is a coastal nation in western Europe, located at the western end of the Iberian Peninsula, bordering Spain. The Portuguese territory also includes a series of archipelagos in the Atlantic Ocean, which are strategic islands along the North Atlantic. The extreme south is not too far from the Strait of Gibraltar, leading to the Mediterranean Sea. In total, the country occupies an area of 92,090 square kilometres (35,560 sq mi) of which 91,470 square kilometres (35,320 sq mi) is land and 620 square kilometres (240 sq mi) water.
Pico Island is an island in the Central Group of the Portuguese Azores. The landscape features an eponymous volcano, Ponta do Pico, which is the highest mountain in Portugal, the Azores, and the highest elevation of the Mid-Atlantic Ridge. In the tradition of the Portuguese poet, Raul Brandão, Pico is referred to as the Ilha Preta, for its black volcanic soils, which nourish its UNESCO-designated vineyards that once allowed the development of the island's economy. Pico is the second largest and, geologically speaking, the most recently formed island of the Azores, being around 300,000 years old.
São Miguel Island, nicknamed "The Green Island", is the largest and most populous island in the Portuguese archipelago of the Azores. The island covers 760 km2 (290 sq mi) and has around 140,000 inhabitants, with 45,000 people residing in Ponta Delgada, the archipelago's largest city.
Corvo Island, literally the Island of the Crow, is the smallest and the northernmost island of the Azores archipelago and the northernmost in Macaronesia. It has a population of approximately 384 inhabitants making it the smallest single municipality in the Azores and in Portugal. The island lies on the North American Plate.
Terceira is a volcanic island in the Azores archipelago, about a third of the way across the North Atlantic Ocean at a similar latitude to Portugal's capital Lisbon, and the island group is owned by Portugal. It is one of the larger islands of the archipelago, with a population of 53,311 inhabitants in an area of approximately 396.75 km².
Madeira is a Portuguese island, and is the largest and most populous of the Madeira Archipelago. It has an area of 740.7 km2 (286 sq mi), including Ilhéu de Agostinho, Ilhéu de São Lourenço, Ilhéu Mole (northwest). As of 2011, Madeira had a total population of 262,456.
São Jorge is an island in the central group of the Azores archipelago and part of the autonomous region of Portugal. Separated from its nearest neighbours by the 15-kilometre (9.3 mi) Pico-São Jorge Channel, the central group is often referred colloquially as part of the Triângulo ("Triangle") group or just "The Triangle". São Jorge is a relatively long thin island with tall cliffs, whose 8,381 inhabitants are concentrated on various geological debris fields (fajãs) along the north and south coasts; from east to west, the island is 53 kilometres (33 mi) long and, north to south, 8 kilometres (5.0 mi) wide: its area is 237.59 square kilometres (91.73 sq mi).
Faial Island, also known in English as Fayal, is a Portuguese island of the Central Group of the Azores, in the Atlantic Ocean.
Graciosa Island is referred to as the White Island, the northernmost of the Central Group of islands in the Azores. The ovular Portuguese island has an area of 60.65 square kilometres, a length of 10 kilometres and a width of 7 kilometres. It is a volcanic island, dominated by a 1.6-kilometre-wide (1.0-mile) central caldera located in the southeast.
Santa Maria is an island in the eastern group of the Azores archipelago and the southernmost island in the Azores. The island is known for its white sand beaches, distinctive chimneys, and dry warm weather.
Dom João de Castro Bank is a large submarine volcano located in the central north Atlantic Ocean, between the islands of São Miguel and Terceira in the archipelago of the Azores.
Mount Pico is a currently quiescent stratovolcano located on Pico Island, in the mid-Atlantic archipelago of the Azores. It is the highest mountain in Portugal, at 2,351 metres (7,713 ft) above sea level, and is one of the highest Atlantic mountains; it is more than twice the elevation of any other peak in the Azores. It has been a designated nature reserve since 1972.
Monte Brasil is the remnants of a tuff volcano connecting the south coast of Terceira in the central Azores, overlooking the city of Angra do Heroísmo. Monte Brasil is flanked by two bays: the Bay of Angra to its east, and the Bay of Fanal to its west, and was used as a defensive point during the history of Angra, resulting in the construction of various forts and redoubts, including the Fortress of São João Baptista overlooking the city.
Volcanic Complex of Topo is a complex of scoria cones and volcanic structures, located near the village Topo in the southeastern part of the island of São Jorge, in the Portuguese archipelago of the Azores.
Striking the Autonomous Region of Azores on 1 January, the 1980 Azores Island earthquake killed 61 people and injured over 400, causing severe damage on the islands of Terceira and São Jorge. Measuring 6.9 on the moment magnitude scale, it also shook the islands of Pico and Faial, and resulted from a strike slip fracture, typical of other historical Azorean earthquakes.
The hydrothermal vents and seamounts of the Azores are a series of Atlantic seamounts and hydrothermal vents that are part of the Mid-Atlantic Ridge system, giving rise to the archipelago and bathymetric region of the Azores. These geological structures, formed from masses of basalt, are of a geomorphological interest due to their rich deposits of ore. In addition it fosters a rich ecosystem of diverse subaquatic plant and animal life. There are food chains within this environment, for example, that are purely chemosynthetic, and do not need sunlight for photosynthesis.
The Captaincies of the Portuguese Empire were the socio-administrative territorial divisions and hereditary lordships established initially by Henry the Navigator, as part of the Donatário system in order to settle and developed the Portuguese overseas Empire. Pioneered on the island of Madeira and institutionalized in the archipelago of the Azores, the captaincy system was eventually adapted to the New World.
The Azores Geopark is a network of 121 geographically-dispersed sites of geographic heritage and marine areas that covers the nine volcanic islands of the archipelago of the Azores. This network is managed by the Azores Geopark Association, a non-profit association, with its headquarters in Horta on the island of Faial, established 19 May 2010. It is part of the European Geoparks Network and the UNESCO Global Geoparks Network. The Association's mission is to ensure the geological conservation, environmental education and sustainable development, while promoting the well-being of the population and a respect for the environment.
The Achada Plateau is an extensive volcanic mountain range located on Pico Island, Azores. It is a protected area with many valuable features that characterize the Azorean landscape. It is included in two Natura 2000 sites, one of which is classified as an Important Bird Area. Part of the plateau also includes a ramsar wetland. It is one of the three main geomorphological units that comprise Pico Island.