The Madalena Islets ( pt, Ilhéus da Madalena) are two uninhabited

islet An islet is a very small, often unnamed island. Most definitions are not precise, but some suggest that an islet has little or no vegetation and cannot support human habitation. It may be made of rock, sand and/or hard coral; may be permanent ...

s located in the

Faial-Pico Channel The Faial-Pico Channel ( pt, Canal Faial-Pico) is an long channel that separates the islands of Faial Island, Faial and Pico Island, Pico in the central group of the archipelago of the Azores. The strait is divided into various depressions, calder ...

about away from

Madalena Madalena is a feminine given name. It is a Portuguese form of Magdalene. It may refer to: People *Madalena Alberto, Portuguese actress, singer and composer * Madalena Boavida, East Timorese politician *Maddalena Casulana, (c. 1544–c. 1590), I ...

harbor, off the coast of the island of

Pico Pico may refer to: Places The Moon * Mons Pico, a lunar mountain in the northern part of the Mare Imbrium basin Portugal * Pico, a civil parish in the municipality of Vila Verde * Pico da Pedra, a civil parish in the municipality of Ribeir ...

in the

Portuguese Portuguese may refer to: * anything of, from, or related to the country and nation of Portugal ** Portuguese cuisine, traditional foods ** Portuguese language, a Romance language *** Portuguese dialects, variants of the Portuguese language ** Portu ...

archipelago of the

Azores ) , motto =( en, "Rather die free than subjected in peace") , anthem= ( en, "Anthem of the Azores") , image_map=Locator_map_of_Azores_in_EU.svg , map_alt=Location of the Azores within the European Union , map_caption=Location of the Azores wi ...

. The islets are also visible from Horta, Faial, and from the

ferries A ferry is a ship, watercraft or amphibious vehicle used to carry passengers, and sometimes vehicles and cargo, across a body of water. A passenger ferry with many stops, such as in Venice, Italy, is sometimes called a water bus or water tax ...

which travel regularly between Horta and Madalena. Locally, the shorter of the two islets is known as ''Ilhéu Deitado'' (''"Lying Down" Islet''), while the taller islet is known as ''Ilhéu em Pé'' (''"Standing Up" Islet'').

Geography

The Madalena Islets are the exposed remains of a

submarine volcano Submarine volcanoes are underwater vents or fissures in the Earth's surface from which magma can erupt. Many submarine volcanoes are located near areas of tectonic plate formation, known as mid-ocean ridges. The volcanoes at mid-ocean ridges ...

which have been eroded by the sea and seismic activity over the ages. The space between the two islets is the old

volcanic crater A volcanic crater is an approximately circular depression in the ground caused by Volcano, volcanic activity. It is typically a bowl-shaped feature containing one or more vents. During Types of volcanic eruptions, volcanic eruptions, molten magm ...

formed of

tuff Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into a solid rock. Rock that contains greater than 75% ash is considered tuff, while rock cont ...

rock and is approximately deep. The rocks are composed mainly of compacted

palagonite tuff Palagonite is an alteration product from the interaction of water with volcanic glass of chemical composition similar to basalt. Palagonite can also result from the interaction between water and basalt melt. The water flashes to steam on contact ...

. Surrounding waters include sandy clearings and areas of small sea-eroded rocks called ''calhau rolado'' ("rolled pebbles") in Portuguese. ''Ilhéu Deitado'' is approximately in height and ''Ilhéu em Pé'' is approximately tall.

Biome

Terrestrial plants present on the islets include endemic Azorean flowering plants such as ''

Spergularia Spergularia is a genus in the family Caryophyllaceae, containing salt-tolerant plants known as sandspurrys and sea-spurreys. There are about 60 species. Selected species * '' Spergularia azorica'' – endemic to the archipelago of the AzoresSecr ...

azorica'' and ''vidália'' (''

Azorina ''Azorina'' is a monotypic genus of flowering plants within the family Campanulaceae, whose sole species, ''Azorina vidalii'', the Azores Bellflower, is endemic to the Azores. Its fragmented population is made up of fewer than 1000 mature plants ...

vidalii''). Aquatic plants growing in the waters around the islets include the

brown alga Brown algae (singular: alga), comprising the class (biology), class Phaeophyceae, are a large group of multicellular algae, including many seaweeds located in colder waters within the Northern Hemisphere. Brown algae are the major seaweeds of the ...

'' Sphacelaria plumula'', and the

red algae Red algae, or Rhodophyta (, ; ), are one of the oldest groups of eukaryotic algae. The Rhodophyta also comprises one of the largest phyla of algae, containing over 7,000 currently recognized species with taxonomic revisions ongoing. The majority ...

'' Lithophyllum incrustans'' and '' Pterocladiophila capilacea''. Various marine birds shelter on the islets, including

common tern The common tern (''Sterna hirundo'') is a seabird in the family Laridae. This bird has a circumpolar distribution, its four subspecies breeding in temperate and subarctic regions of Europe, Asia and North America. It is strongly migratory ...

Cory's shearwater Cory's shearwater (''Calonectris borealis'') is a large shearwater in the seabird family Procellariidae. It breeds colonially of rocky islands in the eastern Atlantic. Outside the breeding season it ranges widely in the Atlantic. It was formerly ...

, Eurasian whimbrel,

grey heron The grey heron (''Ardea cinerea'') is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia and also parts of Africa. It is resident in much of its range, but some populations from the more northern ...

Kentish plover The Kentish plover (''Charadrius alexandrinus'') is a small cosmopolitan shorebird (40-44 g) of the family Charadriidae that breeds on the shores of saline lakes, lagoons, and coasts, populating sand dunes, marshes, semi-arid desert, and tundra.Sz ...

roseate tern The roseate tern (''Sterna dougallii'') is a species of tern in the family Laridae. The genus name ''Sterna'' is derived from Old English "stearn", "tern", and the specific ''dougallii'' refers to Scottish physician and collector Dr Peter McDoug ...

ruddy turnstone The ruddy turnstone (''Arenaria interpres'') is a small cosmopolitan wading bird, one of two species of turnstone in the genus ''Arenaria''. It is now classified in the sandpiper family Scolopacidae but was formerly sometimes placed in the plov ...

, and

sanderling The sanderling (''Calidris alba'') is a small wading bird. The name derives from Old English ''sand-yrðling'', "sand-ploughman". The genus name is from Ancient Greek ''kalidris'' or ''skalidris'', a term used by Aristotle for some grey-colou ...

. The waters surrounding the islets are home to

common bottlenose dolphin The common bottlenose dolphin or Atlantic bottlenose dolphin (''Tursiops truncatus'') is a wide-ranging marine mammal of the family Delphinidae. The common bottlenose dolphin is a very familiar dolphin due to the wide exposure it gets in captivi ...

Atlantic bonito The Atlantic bonito (''Sarda sarda'') is a large mackerel-like fish of the family Scombridae. It is common in shallow waters of the Atlantic Ocean, the Mediterranean Sea, and the Black Sea, where it is an important commercial and game fish. De ...

grouper Groupers are fish of any of a number of genera in the subfamily Epinephelinae of the family Serranidae, in the order Perciformes. Not all serranids are called "groupers"; the family also includes the sea basses. The common name "grouper" is u ...

s, and needlefish. Since June 1995 the Madalena Islets have been recognized as a protected

Natura 2000 Natura 2000 is a network of nature protection areas in the territory of the European Union. It is made up of Special Areas of Conservation and Special Protection Areas designated under the Habitats Directive and the Birds Directive, respectively ...

site by the

European Environment Agency The European Environment Agency (EEA) is the agency of the European Union (EU) which provides independent information on the environment. Definition The European Environment Agency (EEA) is the agency of the European Union (EU) which provides i ...

under the

Habitats Directive The Habitats Directive (more formally known as Council Directive 92/43/EEC on the Conservation of natural habitats and of wild fauna and flora) is a directive adopted by the European Community in 1992 as a response to the Berne Convention. The E ...

. There are ongoing efforts to formally protect the islets locally as one of the protected areas of the Azores, thus far unsuccessful. Experienced

scuba divers This is a list of underwater divers whose exploits have made them notable. Underwater divers are people who take part in underwater diving activities – Underwater diving is practiced as part of an occupation, or for recreation, where t ...

may visit the islets, particularly the small bay between them. Divers should exercise immense caution leaving this protected bay due to the strong currents in the Faial-Pico Channel, and so as to avoid the ferries and other vessels plying the channel.

References

{{Azores Islands Pico Island Madalena, Azores Faial Island Horta, Azores Islets of the Azores Uninhabited islands of Portugal