|
San Ramón Fault
The San Ramón ( es, Falla de San Ramón) is a Chilean geological fault, located in eastern Santiago Metropolitan Region, passing through the eastern part of Santiago marking the boundary between the Chilean Central Valley and the Andes. As an active thrust fault it constitutes a seismic hazard zone for the densely populated Santiago. A large number of homes and educational centers have been built on or near the fault, along with a gas plant in Peñalolén. The Chilean Nuclear Energy Commission has a reactor in La Reina, very close to the fault, which has raised concerns among the population. It runs 5 kilometers underground and extends for 25 kilometers in a north–south direction, lying between the Mapocho River and Maipo River. It is known to pass underneath the communes of Vitacura, Las Condes, La Reina, Peñalolén, La Florida and Puente Alto, and suspected to continue into Lo Barnechea and Pirque at its extremes. Due to its shallowness, it can cause very destructive super ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chile
Chile, officially the Republic of Chile, is a country in the western part of South America. It is the southernmost country in the world, and the closest to Antarctica, occupying a long and narrow strip of land between the Andes to the east and the Pacific Ocean to the west. Chile covers an area of , with a population of 17.5 million as of 2017. It shares land borders with Peru to the north, Bolivia to the north-east, Argentina to the east, and the Drake Passage in the far south. Chile also controls the Pacific islands of Juan Fernández, Isla Salas y Gómez, Desventuradas, and Easter Island in Oceania. It also claims about of Antarctica under the Chilean Antarctic Territory. The country's capital and largest city is Santiago, and its national language is Spanish. Spain conquered and colonized the region in the mid-16th century, replacing Inca rule, but failing to conquer the independent Mapuche who inhabited what is now south-central Chile. In 1818, after declaring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peñalolén
Peñalolén (Mapudungun "fraternal meeting place") is a Chilean commune in Santiago Province, Santiago Metropolitan Region. It was founded on November 15, 1984. History The commune was founded on November 15, 1984. Drug arrests During 2019, Chilean police arrested a local family, accusing them of drug trafficking. According to national news channels, the Peñaloléen organization is one of the largest in the Santiago area and operated all over the town. Demographics According to the 2002 census of the National Statistics Institute, Peñalolén spans an area of and has 216,060 inhabitants (105,528 men and 110,532 women), and the commune is an entirely urban area. The population grew by 20.2% (36,279 persons) between the 1992 and 2002 censuses. ;Stats *Area: 54.2 km²Sistema de Información Regional , Ministry of Planning of Chile. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Arrayán Fault
El Arrayán Fault ( es, Falla El Arrayán) is a geological fault, located inmediataly north of the city of Santiago in Chile. The fault runs in northwest-southeast direction. Likely, the fault was last active sometime in the Quaternary period (last 2.5 million years). It is chiefly a strike-slip fault. Fault scarps, sag ponds, mountain saddle In geomorphology, a col is the lowest point on a mountain ridge between two peaks.Whittow, John (1984). ''Dictionary of Physical Geography''. London: Penguin, 1984, p. 103. . It may also be called a gap. Particularly rugged and forbidding c ...s and stream deflection are some of the surface features of El Arrayán Fault. The fault is estimated to be able to produce 6.4 Mw-strong earthquakes which make it a significant risk factor for the northernmost neighbourhoods of Santiago. References Geology of Santiago Metropolitan Region Seismic faults of Chile {{Chile-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hot Spring
A hot spring, hydrothermal spring, or geothermal spring is a spring produced by the emergence of geothermally heated groundwater onto the surface of the Earth. The groundwater is heated either by shallow bodies of magma (molten rock) or by circulation through faults to hot rock deep in the Earth's crust. In either case, the ultimate source of the heat is radioactive decay of naturally occurring radioactive elements in the Earth's mantle, the layer beneath the crust. Hot spring water often contains large amounts of dissolved minerals. The chemistry of hot springs ranges from acid sulfate springs with a pH as low as 0.8, to alkaline chloride springs saturated with silica, to bicarbonate springs saturated with carbon dioxide and carbonate minerals. Some springs also contain abundant dissolved iron. The minerals brought to the surface in hot springs often feed communities of extremophiles, microorganisms adapted to extreme conditions, and it is possible that life on Earth h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subsoil
Subsoil is the layer of soil under the topsoil on the surface of the ground. Like topsoil, it is composed of a variable mixture of small particles such as sand, silt and clay, but with a much lower percentage of organic matter and humus, and it has a small amount of rocks which are smaller in size mixed with it. The subsoil is also called B Horizon. Whereas the topsoil (alternatively called the A horizon) tends to be the site containing the greatest physical, chemical, and biological activity, the subsoil (or the B horizon) is the region of deposition where you can find iron oxide, clay particles, and small amounts of organic material reaching from the A horizon. It is also less weathered than the topsoil. Due to human activity, the topsoil and subsoil in many environments has been mixed together. Below the subsoil is the soil base (or C horizon). Clay-based subsoil has been the primary source of material for adobe, cob, rammed earth, wattle and daub, and other earthen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1647 Santiago Earthquake
The 1647 Santiago earthquake struck Santiago, Chile on the night of 13 May (22:30 local time, 02:30 UTC on 14 May) and is said to have brought virtually every building in the city to the ground. The earthquake was felt throughout the so-called Captaincy General of Chile, an administrative territory of the Spanish Empire. The maximum felt intensity was XI (''Extreme'') on the Mercalli intensity scale and there were about a thousand casualties. Tectonic setting Chile lies along the destructive plate boundary between the Nazca Plate and the South American Plate. Damage The earthquake was the most damaging in the history of Santiago. Damaged buildings included the Iglesia San Agustín ( Saint Augustine Church). Inside the church, the ''Cristo de Mayo'' crucifix was undamaged except for its crown of thorns which had fallen to Christ's neck, despite the diameter of the crown being smaller than that of the head. The Bishop of Santiago, friar Gaspar de Villaroel, salvaged the i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1575
__NOTOC__ Year 1575 ( MDLXXV) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. Events January–June * January 21 – Queen Elizabeth I of England grants a monopoly on producing printed sheet music, to Thomas Tallis and William Byrd. * February 8 – William I of Orange founds Leiden University. * February 13 – Henry III of France is crowned at Reims. * February 14 – Henry III of France marries Louise de Lorraine-Vaudémont. * March 3 – Battle of Tukaroi: The Mughal Empire decisively defeats the Karrani dynasty of Bengal. * June 24 – William I of Orange marries Charlotte of Bourbon. * June 28 – Battle of Nagashino: Oda Nobunaga defeats Takeda Katsuyori in Japan's first ''modern'' battle. July–December * July 7 – Raid of the Redeswire: Sir John Carmichael defeats Sir John Forster, in the last battle between England and Scotland. * July 26 – Edmund Grindal succ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaternary
The Quaternary ( ) is the current and most recent of the three periods of the Cenozoic Era in the geologic time scale of the International Commission on Stratigraphy (ICS). It follows the Neogene Period and spans from 2.58 million years ago to the present. The Quaternary Period is divided into two epochs: the Pleistocene (2.58 million years ago to 11.7 thousand years ago) and the Holocene (11.7 thousand years ago to today, although a third epoch, the Anthropocene, has been proposed but is not yet officially recognised by the ICS). The Quaternary Period is typically defined by the cyclic growth and decay of continental ice sheets related to the Milankovitch cycles and the associated climate and environmental changes that they caused. Research history In 1759 Giovanni Arduino proposed that the geological strata of northern Italy could be divided into four successive formations or "orders" ( it, quattro ordini). The term "quaternary" was introduced by Jules Desn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richter Magnitude Scale
The Richter scale —also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale—is a measure of the strength of earthquakes, developed by Charles Francis Richter and presented in his landmark 1935 paper, where he called it the "magnitude scale". This was later revised and renamed the local magnitude scale, denoted as ML or . Because of various shortcomings of the original scale, most seismological authorities now use other similar scales such as the moment magnitude scale () to report earthquake magnitudes, but much of the news media still erroneously refers to these as "Richter" magnitudes. All magnitude scales retain the logarithmic character of the original and are scaled to have roughly comparable numeric values (typically in the middle of the scale). Due to the variance in earthquakes, it is essential to understand the Richter scale uses logarithms simply to make the measurements manageable (i.e., a magnitude 3 quake factors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirque
Pirque () is a commune of Chile in Cordillera Province, Santiago Metropolitan Region; it is located 2.8 kilometers southeast of Puente Alto and 21.3 kilometers south-southeast of the center of Santiago. It is situated at the base of the Cajón del Maipo, and is the home of the Concha y Toro wine company. Demographics According to the 2002 census of the National Statistics Institute, Pirque spans an area of and has 16,565 inhabitants (8,384 men and 8,181 women). Of these, 9,651 (58.3%) lived in urban areas and 6,914 (41.7%) in rural areas. The population grew by 45.7% (5,197 persons) between the 1992 and 2002 censuses. Stats *Population: 20,518 (2006 projection) *Average annual household income: US$21,537 ( PPP, 2006) *Population below poverty line: 9.1% (2006) Administration As a commune, Pirque is a third-level administrative division of Chile administered by a municipal council, headed by an alcalde who is directly elected every four years. The 2012-2016 alcalde is Cristia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lo Barnechea
Lo Barnechea is a commune located in the northeastern sector of the province of Santiago and its area corresponds to 48% of this province. Its urban boundaries are: to the north with Los Andes of the Valparaíso region, to the west with Colina, to the southwest with Vitacura and Huechuraba, to the south with Las Condes and to the east with San José de Maipo. It developed around the old rural town of Lo Barnechea. Its population is heterogeneous, as it is inhabited by high and medium-high income families in sectors such as La Dehesa, Los Trapenses and El Arrayán, and also by medium-low and low income families, mainly in the town of Lo Barnechea, Población La Ermita and Cerro Dieciocho. History Lo Barnechea has had a long human occupation for thousands of years. Before the Incas, it was occupied by the Llolleo culture and the Bato tradition, and after them, the Aconcagua culture, the Promaucaes, the Incas and later the Spanish occupation. Its pre-Hispanic inhabitants w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puente Alto
Puente, a word meaning ''bridge'' in Spanish language, may refer to: People * Puente (surname) Places *La Puente, California, USA * Puente Alto, city and commune of Chile *Puente de Ixtla, city in Mexico *Puente Genil, village in the Spanish province of Córdoba *Puente La Reina, town and municipality located in the autonomous community of Navarra, in northern Spain * Puente Nacional, Veracruz, municipality in Mexico *Puente Piedra District, district in Peru * Puente, Camuy, Puerto Rico, a barrio * Puentes de García Rodríguez, municipality in Ferrolterra, in northwestern Spain * West Puente Valley, California, USA Bridges and transport * Puente Aranda (TransMilenio), mass-transit system of Bogotá, Colombia * Puente Centenario, major bridge crossing the Panama Canal * Puente Colgante, transporter bridge in Spain * Puente Colgante, a suspension bridge in Manila, Philippines * Puente de Boyacà, bridge in Colombia *Puente La Amistad de Taiwán, Taiwan-Costa Rica's Friendship Bridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Hot Spring")
