|Nickname: Isla del Meridiano|
|Area||268.71 km2 (103.75 sq mi)|
|Highest elevation||1,501 m (4,925 ft)|
|Highest point||Pico de Malpaso|
|Autonomous Community||Canary Islands|
|Province||Santa Cruz de Tenerife|
|Pop. density||40.2 /km2 (104.1 /sq mi)|
|Languages||Spanish, specifically Canarian Spanish|
|• Summer (DST)|
El Hierro, nicknamed Isla del Meridiano (the "Meridian Island"), is the smallest and farthest south and west of the Canary Islands (an Autonomous Community of Spain), in the Atlantic Ocean off the coast of Africa, with a population of 10,798 (2018). Its capital is Valverde. At 268.51 square kilometres, it is the smallest of the seven main islands of the Canaries.
- 1 Name
- 2 History
- 3 Climate
- 4 Geography, flora and fauna
- 5 Tourism and transportation
- 6 Political organization
- 7 The "Meridian Island"
- 8 Festivals
- 9 Natural symbols
- 10 Energy
- 11 Bimbache openART Festival
- 12 El Hierro in literature
- 13 See also
- 14 Notes
- 15 External links
The name El Hierro, although spelled like the Spanish word for 'iron', is not related to that word. The H in the name of the metal is derived from the F of Latin ferrum (compare higa for 'fig'). The H in the name of the island dates back to the time in Old Spanish orthography when the distinction between the letters I and J was not yet established and a silent h was written before word-initial ie to ensure that the i was read as a semivowel, not as the consonant [ʒ].
The confusion with the name of the metal had effects on the international naming of the island. As early as the 16th century, maps and texts called the island after the word for 'iron' in other languages: Portuguese Ferro, French l'île de Fer, and Latin Insula Ferri.
Nevertheless, the origin of the name ero or erro or yerro is not definitely known. It is thought to be derived from one of several words in the Guanche language of the pre-Hispanic inhabitants, known as Bimbaches. Juan de Abreu Galindo (in a manuscript translated and published by George Glas in 1764) gives the native name of the island as Esero (or Eseró), meaning 'strong'.  Richard Henry Major, however, in notes on his translation of Le Canarien, observes that the Guanche word hero or herro, meaning 'cistern', could easily have lapsed into hierro by a process of folk etymology. It is believed that the Bimbaches had to construct cisterns to save fresh rainwater. The Gran diccionario guanche gives the meaning of the Guanche word hero in Spanish as "fuente" ('spring [water source]').
The ancient natives of the island, called Bimbaches, were subjected to Spanish rule by Jean de Béthencourt (d.1425) – more by the process of negotiation than by military action. Béthencourt had as his ally and negotiator Augeron, brother of the island's native monarch. Augeron had been captured years before by the Europeans and now served as mediator between the Europeans and the Guanches. In return for control over the island, Béthencourt promised to respect the liberty of the natives, but his son eventually broke his promise, selling many of the bimbaches into slavery. Many Frenchmen and Galicians subsequently settled on the island. There was a revolt of the natives against the harsh treatment of the governor Lázaro Vizcaíno, but it was suppressed.
Landslides and tsunami
There is evidence of at least three major landslides that have affected El Hierro in the last few hundred thousand years. The most recent of these was the 'El Golfo' landslide that occurred about 15 thousand years ago, involving collapse of the northern flank of the island. The landslide formed the El Golfo valley and created a debris avalanche with a volume of 150–180 km3. Turbidite deposits related to this landslide have been recognized in drill cores from the Agadir Basin to the north of the Canary Islands. Detailed analysis of these deposits suggests that the slope failure did not occur as a single event but a series of smaller failures over a period of hours or days. Local tsunami are likely to have been triggered by these landslides but no evidence has been found to confirm this.
2011 seismic activity
The Instituto Vulcanológico de Canarias (Volcanological Institute of the Canary Islands) and National Geographic Institute’s seismic monitoring station located in Valverde detected increased seismic activity beginning on 17 July 2011. The seismic monitoring network was increased in density on July 21 to allow better detection and location of the seismic events. There was an earthquake swarm with in excess of 400 minor tremors between 20 July and 24 July; by 27 July a further 320 earthquakes had been recorded. On 25 August there were reports that some horizontal deformation had been detected, but that there was no unusual vertical deformation. At that time, the total number of tremors had exceeded 4000. By the end of September, the tremors had increased in frequency and intensity, with experts fearing landslides affecting the town of La Frontera, and also a small possibility of a volcanic eruption through a new vent. Emergency services evacuated several families in the areas at most risk, and made plans to evacuate the island if necessary. Between 4.15 and 4.20am on 10 October 2011 the earthquake swarm changed behaviour and produced a harmonic tremor. Harmonic tremors are produced by magma movements and can indicate that an eruption has begun. A small submarine eruption began, 7 km south of La Restinga. As of 7 November 2011 a confirmed surtseyan type of eruption phase has started at the fissure. On December 4, 2011 the eruption was ongoing with vigorous phreatic bubbles emerging.
The climate of El Hierro depends on the area. The climate ranges are from humid subtropical climate in the center of the island, to hot semi-arid (BSh) and to a tropical desert climate (BWh) in coastal parts (according to the Köppen climate classification). Although the temperatures are very influenced by the ocean. This is the climate chart from El Hierro Airport, which is the only airport in the island and also the island's capital airport:
|Climate data for Hierro Airport|
|Record high °C (°F)||28.5
|Average high °C (°F)||20.9
|Daily mean °C (°F)||18.8
|Average low °C (°F)||16.6
|Record low °C (°F)||8.0
|Average precipitation mm (inches)||28
|Average precipitation days (≥ 1.0 mm)||3||2||3||1||0||0||0||0||0||2||2||4||19|
|Average relative humidity (%)||74||76||74||74||74||75||77||78||77||76||74||74||75|
|Mean monthly sunshine hours||140||158||184||197||233||229||210||234||210||189||157||143||2,339|
|Source #1: Agencia Estatal de Meteorología (normals 1981–2010)|
|Source #2: Agencia Estatal de Meteorología (extremes only 1973–present)|
Geography, flora and fauna
El Hierro's size and geography supports entirely endemic species including the critically endangered El Hierro giant lizard (Gallotia simonyi), for which there is a captive breeding programme, allowing its reintroduction.
The non-barren parts of the interior rely on relief precipitation, not much more than the average of 19 rainfall days per year, high relative humidity and geothermal springs. This non-arid parts have thermophilous (geothermal heat-liking) juniper clumps and a pine forest with other evergreens. In 2000, El Hierro was designated by UNESCO as a Biosphere Reserve, with 60% of its territory protected to preserve its natural and cultural diversity. Among cetaceans in these waters, it is notable that several species of lesser known beaked whales inhabit around the island.
Like the rest of the Canary Islands chain, El Hierro is volcanic and sharply mountainous. One eruption has to date been recorded on the island: from the Volcan de Lomo Negro vent in 1793, lasting a month. Except as landscaped at its harbour towns the shore is rocky and in places precipitous.
El Hierro is a 268.71-square-kilometre (103.75 sq mi)  island, formed late, about 1.2 million years ago after three successive eruptions, the island emerged from the ocean as a triangle of basaltic dykes topped with a volcanic cone more than 2,000 metres high. With continued activity resulting in the island expanding to have the largest number of volcanoes in the Canaries (over 500 cones, another 300 covered by more recent deposits), together with approximately 70 caves and volcanic galleries, including the Cueva de Don Justo whose collection of channels exceeds 6 km. Landslides, plant erosion and seasonal wind erosion have reduced the size and height of the island. The current highest point is in the middle of the island, in Malpaso, 1501 meters high.
Tourism and transportation
Like all of the Canary Islands, El Hierro is a tourist destination. It is served by a small airport—El Hierro Airport at Valverde—and a ferry terminal at Puerto de la Estaca, both of which connect to Tenerife. Though El Hierro has a Parador, hotel accommodations are generally in small family enterprises; as a UNESCO World Biosphere Reserve, El Hierro has limited construction to less than half of its total surface and buildings to two floors, maintaining its traditional look and social structure more than the other six major Canary Islands.
The seat of the island government (cabildo insular) is in the town of Valverde, which houses approximately half of the island's population.
The "Meridian Island"
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El Hierro was used in various parts of Europe for more than 500 years as the prime meridian commonly outside of the future British Empire. Already in the 2nd century A.D., Ptolemy considered a definition of the zero meridian based on the western-most position of the known world, giving a few maps with only positive, eastern longitudes. In 1634 France, ruled by Louis XIII and his minister Richelieu, decided that Ferro's meridian should be used as a key reference of maps, their considering the island's historic meridian and status as the western-most known land of peoples of the 'Known World'. (Flores Island is the westernmost Azore discovered by the Portuguese navigators in the early 15th century — after the First Voyage of Columbus in 1492 scholars and cartographers sometimes grouped them among the new world. The Paris elite considered El Hierro to be exactly 20° west of the Paris meridian (1⁄18th of its relevant parallel of the globe). Old international maps (outside of Anglo-North American realms) often have a common grid with Paris degrees at the top and Ferro degrees (offset by 20 from Paris) at the bottom. Louis Feuillée also worked on this problem in 1724.
The most important festival of El Hierro is the Bajada de la Virgen de los Reyes, held every four years, on the first Saturday of July (the last occasion was in 2017, and the next will be in 2021). During the festival, the Virgin of the Kings (Virgen de los Reyes, patron saint of the island of El Hierro) is taken from her sanctuary in La Dehesa (in the municipality of La Frontera) and carried to the capital of the island, Valverde, making a tour of 44 kilometers and running through all the towns of El Hierro.
The annual festival of the Virgin is celebrated every September 24.
According to the Ministry for Industry, Tourism and Commerce, El Hierro hopes to become the first island in the world to be self-sufficient for electrical energy. This will be achieved through a €54 million project combining a greater than 11 megawatt wind farm and two hydroelectric projects.
This hydro and wind-power project, created by the local Gorona del Viento El Hierro consortium with financial aid from the European Union, and officially inaugurated in 2015, consists of five E-70 wind turbines capable of producing 11.5 megawatts of wind power to supply electricity for approximately 11,000 residents, an additional number of tourists, and three water desalination facilities. The hybrid wind/pumped hydro storage system stores surplus wind power by pumping water up 700 meters (approximately 2,300 feet) to the crater of an extinct volcano. When winds are calm or when demand exceeds supply, water is released from the crater to generate 11.3 MW of electricity, filling a smaller artificial basin created at the bottom of the extinct volcano. Water in the lower basin is then pumped back up again to the upper reservoir when there is excess wind power.
The closed-loop hybrid wind/hydro system is expected to save approximately US$4M per year (calculated with January 2011 oil prices) previously spent on about 40,000 barrels of crude oil imported annually, attempting to make the island completely self-sufficient for electrical energy.
2016 was the first whole year for the power plant and it reached 40.7% of the total demand, reducing consumption of diesel by 6,000 tonnes. In 2017, the share climbed to 46.5%. The installation also powers a desalination plant that provides fresh water. 
In early 2018, El Hierro covered its entire electricity demand between the 25th of January and the 12th of February with its renewable resource base, avoiding the use of polluting energy sources for more than 560 hours in 2018 - and a total of almost 2,000 hours since it started operating.
last data 2018 Blog of Roger Andrews 
Bimbache openART Festival
The Bimbache openART Festival and Global Initiative for Arts and Sustainability, founded in 2005 by German-born guitarist Torsten de Winkel and other community activists, is a non-profit effort at creating an interdisciplinary platform which seeks to bridge traditional divides, both on a musical and human level, in a globalizing world. The festival is a contribution of the international artist community to El Hierro's "Sustainable Island" program and collaborates with scientists and sustainability-oriented organizations from around the world.
El Hierro in literature
The island of Hierro is mentioned (1) in Umberto Eco's novel The Island of the Day Before (L'isola del giorno prima, 1994), about a 17th-century Italian nobleman trapped on an island on the International Date Line; (2) in Christopher Isherwood's short story "The Turn Round the World", collected in his Exhumations (1966); and (3) in the first chapter of Steven Callahan's (1986) maritime chronicle "Adrift", in which El Hierro is his final port of departure for an ill-fated Atlantic crossing.
- "Islas e islotes con superficie superior a 1 Km²". Instituto Geográfico Nacional. Archived from the original on 2015-07-22.
- "Population referred to the January 1, 2018". Archived from the original on 3 March 2016. Retrieved 5 August 2019.
- Bory de Saint-Vincent, J.B.G.M. (1803). Essais sur les Isles Fortunées et l'antique Atlantide, ou Précis de l'histoire générale de l'archipel des Canaries. Paris: Baudouin. p. 14.
- Abreu y Galindo, Juan de; Glas, George (1764). The history of the discovery and conquest of the Canary islands. London: R. and J. Dodsley. pp. 24–25.
- Bontier, Pierre; Le Verrier, Jean (1872). The Canarian, or, book of the conquest and conversion of the Canarians in the year 1402. Translated by Major, Richard Henry. London: Hakluyt Society. p. 124.
- Osorio Acevedo, Francisco (2003), Gran diccionario guanche : el diccionario de la lengua de los aborígenes canarios, Tenerife: Centro de la Cultura Popular Canaria
- Masson, D.G.; Watts, A.B.; Gee, M.J.R.; Urgeles, R.; Mitchell, N.C.; Le Bas, T.P.; Canals, M. (2002). "Slope failures on the flanks of the western Canary Islands" (PDF). Earth-Science Reviews. Elsevier. 57 (1–2): 1–35. Bibcode:2002ESRv...57....1M. doi:10.1016/S0012-8252(01)00069-1. Archived from the original (PDF) on 4 August 2011. Retrieved 29 August 2011.
- Masson, D.G.; Harbitz, C.B.; Wynn, R.B.; Pedersen, G.; Løvholt, F. (2006). "Submarine landslides: processes, triggers and hazard prediction". Philosophical Transactions of the Royal Society A. London: Royal Society. 364 (1845): 2009–2039. Bibcode:2006RSPTA.364.2009M. doi:10.1098/rsta.2006.1810. Retrieved 29 August 2011.
- "Canary Islands Government Monitors El Hierro Earthquake Swarm". Sign of the Times. Irish Weather Online. 23 July 2011.
- "More Than 720 Earthquakes Recorded On El Hierro In One Week". Reality-Choice.org. Irish Weather Online. 27 July 2011. Archived from the original on 27 December 2016.
- Martin, Daniel (25 August 2011). "El enjambre sísmico de El Hierro suma más de 4.000 terremotos". Suite101 (in Spanish). Archived from the original on 23 September 2011.
- Worden, Tom (28 September 2011). "Evacuation of smallest Canary Island begins after earthquake 'swarm' sparks fears of volcanic eruption". Daily Mail. London.
- "Seismogram for El Hierro". Instituto Geográfico Nacional. 10 October 2011. Archived from the original on 12 October 2011.
- Marin, Bernardo; Mendez Valverde, R. (11 October 2011). "La erupción volcánica submarina de El Hierro libera magma y gases en el océano". El País (in Spanish).
- Hugh-Jones, Rob (4 December 2011). "Canary Island volcano: A new island in the making?". BBC News. Public Radio International.
- "Valores climatológicos normales. Hierro Aeropuerto" (in Spanish). Agencia Estatal de Meteorología. Retrieved January 14, 2013.
- "Valores extremos. Hierro Aeropuerto" (in Spanish). Agencia Estatal de Meteorología. Retrieved January 14, 2013.
- "Biosphere Reserve Information, Spain, Isla de El Hierro". Man and the Biosphere Programme. UNESCO.
- Carrillo, Manuel; Tejedor, Marisa (May 2007). Illustrations by Sergio H. Bello. "Los Zifios en las islas Canarias" (PDF). El Indiferente (in Spanish). Centro de Educacion Ambiental Municipal. 19.
- Carracedo, Juan Carlos; Day, Simon (2002). Canary Islands. Terra. p. 2. ISBN 978-1-903544-07-5.
- "El Hierro, La isla, Geología". Cabildo de El Hierro (in Spanish). Archived from the original on 2015-07-21. Retrieved 2011-07-24.
- "Islas Canarias: Ferries – Fähren – Ferry". El Portal de la Isla de El Hierro.
- Census of 1 November 2001: from Instituto Nacional de Estadística, Madrid.
- Census of 1 November 2011: from Instituto Nacional de Estadística, Madrid.
- Estimate of 1 January 2018: from Instituto Nacional de Estadística, Madrid.
- total included in figure for Frontera. The new Municipality of El Pinar was created in 2007 by splitting off the former southern portion of the Municipality of Frontera.
- Ley 7/1991, de 30 de abril, de símbolos de la naturaleza para las Islas Canarias
- Frayer, Lauren (28 September 2014). "Tiny Spanish Island Nears Its Goal: 100 Percent Renewable Energy". Weekend Edition Sunday. NPR.
- Griffiths, Sarah (28 April 2014). "The world's first island powered entirely by wind and a lake that's a huge battery: Spain's El Hierro will take advantage of gusts from African coast". Daily Mail.
- El Hierro 100% RES web site with articles, animation and references to partner organizations Archived November 23, 2008, at the Wayback Machine
- Article titled "Sun, wind and water The new El Hierro island's allies" in pdf format Archived June 13, 2007, at the Wayback Machine
- Cala, Andrés (19 January 2011). "Tiny Spanish Island Has a Huge Stake in the Future". The New York Times.
- Murray, James (6 January 2014). "Wind power was Spain's top source of electricity in 2013". The Guardian.
- EL HIERRO WIND-PUMPED HYDRO POWER STATION page 15
|Wikimedia Commons has media related to El Hierro.|
- El Hierro – official tourism website of the Canary Islands
- Encyclopædia Britannica (11th ed.). 1911. .