Monday, January 1, 2024

👏👏👏 SÃO MIGUEL ISLAND

SÃO MIGUEL ISLAND

37° 47' N; 25° 30' W

São Miguel is the largest of the islands in the Azores archipelago and the largest of all the islands within the territory of Portugal. With a surface area of ​​748.82 km², it measures 64.7 kilometers in length and 8–15 km in width and has a population of 137,699 inhabitants (2011).

It is divided into 6 municipalities and 65 parishes. The municipalities are:

Lagoa,
Nordeste,
Ponta Delgada,
Povoação,
Ribeira Grande,
Vila Franca do Campo.



Parishes in the municipality of Ponta Delgada:

Ajuda da Bretanha; Arrifes; Candelária, Capelas, Covoada;Fajã de Baixo; 

Fajã de Cima; Fenais da Luz; Feteiras; Ginetes; Livramento; Mosteiros; 

Pilar da Bretanha; Relva; Remédios; Santa Bárbara;Santa Clara;

Santo António; São José; São Pedro; São Roque; São Sebastião; 

São Vicente Ferreira; Sete Cidades.

History

In 1427, São Miguel became the second of the islands discovered by Gonçalo Velho Cabral to be settled by colonists from continental Portugal. This date is uncertain, as it is believed that the island was discovered between 1426 and 1437 and inscribed in portolans from the middle of the 15th century. Its discovery was later recorded by Father Gaspar Frutuoso in the seminal history of the Azores, Saudades da Terra, as he began: "This island of São Miguel where...we are, is mountainous and covered in ravines, and it was, when we discovered it, covered in trees...due to its humidity, with its water showers and ravines warm with sun..."

It was sometime after the initial settlement of Povoação Velha (on the southeastern coast) that (between 1439 and 1444) a volcanic eruption occurred in the crater of Sete Cidades (then uninhabited). There are no records of the precise date, but Gaspar Frutuoso noted that navigators returning to São Miguel (soon after its discovery) encountered the western part of the island completely changed and tree trunks and pumice stone floating in the waters around the island. After docking in Povoação, the settlers reported feeling tremors and aftershocks; "...those settlers living in their earthen holes of straw and hay, heard almost within a year a great loud noise, roars and snorts that came from the earth with large tremors still proceeded the subversion and fire from the peak that had disappeared."


In the early 15th century, Prince Henry the Navigator first authorized the settlement of the Azores, and many settlers from the historical provinces of Estremadura, Alto Alentejo, Algarve and Madeira travelled to São Miguel, under the Carta Régia (a decree of the regency). The fertile soils and temperate climate attracted settlers from other countries, notably French and Flemish people. Cultural minorities such as Sephardic Jewish New Christians are believed to have comprised as much as 20% of the island's population (i.e., many had surnames such as 'Pereira, Pimentel, Dias, Menezes, Oliveira, Nunes, Mendes, Rodrigues, Pinto etc.), and some Moors were exiled to the island during the inquisition. Its geographic position and fertile soils permitted rapid economic development. The establishment of a military garrison made the island an obligatory port-of-call in the African and Asian commercial trade, while the export of sugar, and later orchil (a dye exported to Flanders for the making of cloth) stabilized the island's export trade.

The first capital of the island was Vila Franca do Campo, which was devastated by the 1522 Vila Franca earthquake and landslides. The tragedy helped to elevate Ponta Delgada to the administrative and economic status of capital and business centre from 1546.

During the Portuguese succession crisis of 1580, the people from São Miguel won the naval Battle of Vila Franca against a French squadron that supported the claims of the pretender António, Prior of Crato.

With the Portuguese Restoration War (1640), the island regained its position as a commercial center, establishing new contacts in Brazil, which was heavily colonized during this period. Some of the island's historic buildings, including mansions and churches, date from this period; the island's architectural expansion and development came from revenues from the export of oranges, mainly to Great Britain.
In 1831, during the Liberal Wars, following the landing of troops loyal to Queen Maria II in Nordeste (sent by the future Duke of Terceira), a resistance to the Absolutist regime on the Island was organized. In 1832, this militia declared allegiance to the Charter (constitutional monarchy) and Queen Maria, forming a contingent that sailed to the continent where they were involved in the liberation of Porto.

After the Liberal Wars, the period of Devourism allowed the economy to flourish, and the port of Ponta Delgada expanded to new crops such as tea, pineapple, and tobacco. The development of the fishing industry, cultivation of food staples, and expansion of the dairy industry permitted the growth of many of the population centres on the island.

Following the Carnation Revolution, the island received the seat of the Presidency of the Autonomous Region of the Azores, located in Ponta Delgada. Its economic, social, and political importance is growing within the archipelago.


Geography
Geology

São Miguel is bisected by many faults from the northwest to southeast in the direction of the Terceira Rift, a triple junction of the African, Eurasian, and North American tectonic plates. This system is best expressed in the western part of the island with extensive geological formations, such as the Mosteiros Graben (along the western flank of the Sete Cidades Massif), the Ribeira Grande Graben (along the northern flank of the Água de Pau Massif), and the many cones and fissural structures along the interior of the island. In the ancient crater of Furnas the faults are aligned west-northwest to east-southeast. Zbysewsky (1959), among others (note references) identifies eight geomorphological structures on São Miguel that correspond to the formative features that built the island, including:

The Sete Cidades Massif – an area that occupies the extreme western part of the island, and corresponds to a central volcanic crater and lake-filled caldera, with various cones, deposits of pumice, lava domes and maars. In the northeastern flank of this volcano the Mosteiros Graben, a tectonic structure created from the collapse of lands and located along a northwest to southeast orientation. Along other regional fractures and radial faults there are ancient spatter cones and lava domes;
The Picos Volcanic System or Picos Region – is situated along a northwest–southeast alignment, and defines a range of spatter cones and relatively level ground between the Sete Cidades and the Água de Pau Massifs;
The Água de Pau Massif – this central feature corresponds to the island's central volcano, including the Lagoa do Fogo (Lake of Fire), many lava domes, and pumice cones. On the northeastern flank of the Massif the Ribeira Grande Graben is visible, representing a tectonic depression oriented northwest to southeast;
The Achada das Furnas Plateau – a region with a central plain marked by cones and maars, with deposits along a west-northwest to east-southeast and northwest to southeast;
Furnas Volcano – located in the eastern part of the island, along the southern coast, and comprising two ancient calderas, occupied by a lake (Lagoa das Furnas). Within the system one can find many pumice cones, maars and lava domes;
Povoação Volcano – comprising a central caldera, generally well-eroded and whose southern rim has disappeared to the southern coast. Within its interior, marked by several river valleys and cliffs, are several spatter cones;
The Tronqueira Region – it occupies the extreme easterly portion of the island and corresponds to a mountainous region, divided by many river-valleys that are usually delineated by tectonic fractures;
The Northern Coastal Platform – located along the northeastern portion of the island, and marks a zone of relatively moderate topography, limited by the coast to the north and the northern crater rims of Furnas and Povoação volcanoes to the south.

São Miguel comprises six volcanic zones; all are Quaternary in age except the last, which is partly Pliocene. From west to east, these zones are: the trachyte stratovolcano of the Sete Cidades Massif; a field of alkali-basalt cinder cones and lava flows with minor trachyte; the trachyte stratovolcano of the Água de Pau Massif; a field of alkali-basalt cinder cones and lava flows with minor trachyte and tristanite; the trachyte stratovolcano of Furnas; and the Nordeste shield, which includes the Povoação caldera and consists of alkali basalt, tristanite and trachyte. Dormancy ages for these regions include 400 years for Sete Cidades, 145 for Zone 2, 1150 for Água de Pau, and 370 for Furnas, while eruptions in the Nordeste have not occurred in the past 3000 years.

These geomorphological structures have resulted from millions of years of compound growth that began in the eastern portion of the island; around 4 million years ago the Nordeste Volcano burst from the ocean floor in effusive and fissural eruptions. These eruptions were composed of basaltic lava flows and spatter cones whose products reached a height of 1,100 meters (3,600 ft) forming the mountainous region of Tronqueiro, Planalto dos Graminhais, Espigão dos Bois, and Pico Verde (finding its maximum extent in Pico da Vara). But, about 950,000 years ago a secondary volcano system (Volcanic Complex of Povoação) supplanted the eruptions of the Nordeste Volcano, responsible for new basaltic lavas and pyroclastic deposits. With an age of 200,000 years the third volcano on São Miguel, the Água de Pau Volcano started erupting on the western flank of Povoação volcano in two phases. The first phase, composed of the older materials, erupted from lava flows and Trachyte pyroclasts, the secondary phase corresponded to volcanic products that began erupting 400,000 years ago. These latter deposits included pyroclastic, trachyte flows (lava and surges), mudflows, and basalts. In what would become the island's western portion, a fourth volcano formed: the Sete Cidades Volcano erupted 200,000 years ago and continued to erupt until about 36,000 years ago.

Between 100,000 and 3,800 years ago fissural eruptions of integrated lava and basaltic pyroclastic deposits occurred in the center of the island between Água de Pau and Povoação, forming the Fissural Volcanic System of Congro. These eruptions were explosive and fed by activities in the neighboring volcanic systems. At about 100,000 years a secondary system developed along the frontier of the Povoação volcano, the "Furnas Volcano" complex (the youngest volcanic system) in three phases mixing pyroclastic surges, trachytes, and lava flows, as well as explosive materials. Finally, two layers of deposits formed the Fissural Volcanic System of Picos between the volcanic Água de Pau and Sete Cidades 31,000 years ago unifying the island. This formation integrated lavas, basaltic pyroclasts, tuff cones, and trachyte domes into two layers ( The Ponta Delgada and Penhal da Paz sub-deposits) and compiled to about 5,000 years ago.

The peak area between Sete Cidades and Fogo is a monogenetic volcanic field composed of 270 volcanoes. They are primarily made up of basaltic cones formed during Strombolian and Hawaiian-style eruptions. This is the part of the island with the most recent volcanic activity. The youngest volcanoes are relatively well-dated. Many eruptions have been witnessed and recorded by people. The last one took place in the 17th century. The most famous eruption known as Fogo 2, occurred in 1652.


Biome
The ancient laurisilva forest has mostly been replaced by cultivated fields and imported trees and plants, such as the ubiquitous cryptomeria trees. There are some hot springs (caldeiras), generally located in the center of the island, in the area stretching from Povoação to Nordeste. There is also an ocean hot spring called Ponta da Ferraria.

The highest elevation on São Miguel is the Pico da Vara at 1,103 metres (3,619 ft). Lying at the eastern end of the island, it is the focus of a Special Protection Area containing the largest remnant of laurisilva forest on the island, which is home to the endemic and critically endangered bird, the Azores bullfinch.

Whale watching tours, starting from Ponta Delgada and Vila Franca do Campo are available. One may see sea turtles, dolphins and humpback whales.

Climate

São Miguel has a mild maritime climate, which is drier in the summer and wetter in the winter, though according to the Köppen climate classification, four different climatic classifications can be found throughout the island. At lower elevations, the hot-summer Mediterranean climate (Csa) dominates over the Humid subtropical climate (Cfa) typical of the more westerly islands and truly only found around Capelas. Above 100 m (330 ft) altitude, the Mediterranean climate transitions into its warm-summer variant (Csb), and past 200 m (660 ft) the climate is strictly oceanic (Cfb).

The western half of the island is generally drier, due to the lower topography. Precipitation varies from less than 800 mm (31 in) in the Northwest coastline between Mosteiros and Ajuda da Bretanha, to over 3,200 mm (130 in) around Pico da Vara in the east.

Similar to other islands in the archipelago, São Miguel is influenced by ocean currents and winds, and, in particular, the cyclonic Gulf Stream. This stream functions as a moderating force in the islands, keeping temperatures hovering between 14 °C (57 °F) and 23 °C (73 °F) throughout the year. The island's location also makes it susceptible to some Atlantic storms, and precipitation tends to be elevated during the winter periods. Winters are very mild by European standards and summers are warm (sometimes very warm due to the high humidity) and relatively dry. Temperatures above 30 °C (86 °F) or below 5 °C (41 °F) have never been recorded at the coast.

Transport
Three bus routes operate in Ponta Delgada on weekdays from 07:00 to 19:00. Line A runs in the western part of town, line B in the central/north, and line C in the east. There are bus services between Ponta Delgada and most other towns on the island, but usually only a few times a day. City services and island-wide services are both accessible along "Avenida D. Infante Henriques" and conveniently accessible from major sites in Ponta Delgada. Up to date schedules are available at bus stops and the tourist office. Distances on the island are short with journeys rarely longer than 90 minutes.

Joao Paulo II Airport (Ponta Delgado Airport) provides airline connections to all of the islands of the Azores as well as to Madeira and the mainland (namely, Lisbon, Porto, and Faro) as well as numerous international destinations in Europe and North America.


NATURE


Lagoa das Sete Cidades – Place of legends and myths, the Lagoa das Sete Cidades takes a certain mystique due to its idyllic landscape often accompanied by mist. It stands as the most iconic Crater Lake on São Miguel Island.


Lagoa do Fogo – Great place for a pedestrian trail. With vegetation that only exists in its volcanic extent, this lake has a wilder side comparing to others, making the descent to its base a mandatory stop.


Lagoa das Furnas – Located in Furnas Valley, this lake is in an easy access place, which means that anyone can go for a visit. Lake with great extent and lush surrounding vegetation. It's in its margins that the famous Furnas meat stew can be baked.


Parque Terra Nostra – A magnificent botanical garden with a wide variety of endemic species and many others. With one of the most impressive collections of camellias in the world, Parque Terra Nostra is without a doubt a unique place, especially to nature lovers.


Caldeira Velha – Situated in Ribeira Grande, on the way to Lagoa do Fogo, Caldeira Velha is an excellent option for those who want to have a relaxing bath in the typical thermal waters of the Azores.


Heritage
Portas da Cidade – Built in the eighteenth century, they are considered the ex-libris of the city of Ponta Delgada. This monument consists of a set of three round arches, built in regional stone, presenting a contrast between white and black basalt, a typical characteristic of the island of São Miguel.

Igreja de São Sebastião – Best known for Matriz, this church was built between the years 1533-1545 as a promise of the inhabitants of São Miguel Island to São Sebastião to end an epidemic. After several renovations, the Gothic styled church presents today Manueline and Baroque elements, being built with limestone and basalt from the island.

Igreja do Colégio – Former residence of the Companhia de Jesus, the Igreja do Colégio now houses the Museu Carlos Machado’s Núcleo de Arte Sacra. Containing paintings and sculptures of the seventeenth and eighteenth centuries in its assets, it presents itself today as a cultural space, with a large shed for education and knowledge.


































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