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INGEOMINAS
The Colombian Geological Survey (CGS) ( es, Servicio Geológico Colombiano; formerly known as INGEOMINAS) is a scientific agency of the Colombian government in charge of contributing to the socioeconomic development of the nation through research in basic and applied geosciences of the subsoil, the potential of its resources, evaluating and monitoring threats of geological origin, managing the geoscientific knowledge of the nation, and studying the nuclear and radioactive elements in Colombia. History The CGS was initially created as the ''National Scientific Commission'' ( es, Comisión Científica Nacional) by the Congress of Colombia on December 22, in 1916, with the mission of mapping the geological resources of the nation and exploring the national territory in search of mineral deposits. Following a series of earthquakes throughout the nation in the early 1920s, the eruption of the Galeras volcano in 1925, and the growing mining and petroleum industry, the Colombian govern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sotará (volcano)
Sotará is a stratovolcano located in Sotará, Cauca, Colombia. The volcano has hot springs of and fumarole activity with a composition of 80% CO2 and 20% H2S.INGEOMINAS, s.a. The volcano is located between the Silvia-Pijao Fault in the west and the San Jerónimo Fault in the east.Plancha 364, 1999 Gallery See also * Geology of Colombia * List of volcanoes in Colombia This is a list of active and extinct volcanoes in Colombia. See also * List of earthquakes in Colombia * List of fossiliferous stratigraphic units in Colombia * Geology of Colombia References {{South America topic, state=uncollaps ... * List of volcanoes by elevation References Bibliography * * External links * Mountains of Colombia Stratovolcanoes of Colombia Andean Volcanic Belt Geography of Cauca Department Four-thousanders of the Andes {{Colombia-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevado Del Ruiz
The Nevado del Ruiz (), also known as La Mesa de Herveo ( en, Mesa of Herveo, the name of the nearby town) is a volcano on the border of the departments of Caldas and Tolima in Colombia, about west of the capital city Bogotá. It is a stratovolcano composed of many layers of lava alternating with hardened volcanic ash and other pyroclastic rocks. Volcanic activity at Nevado del Ruiz began about two million years ago, since the Early Pleistocene or Late Pliocene, with three major eruptive periods. The current volcanic cone formed during the present eruptive period, which began 150,000 years ago. The volcano usually generates Vulcanian to Plinian eruptions, which produce swift-moving currents of hot gas and rock called pyroclastic flows. These eruptions often cause massive lahars (mud and debris flows), which pose a threat to human life and the environment. The impact of such an eruption is increased as the hot gas and lava melt the mountain's snowcap, adding large quantitie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Armero Tragedy
The Armero tragedy ( es, Tragedia de Armero, links=no ) occurred following the eruption of the Nevado del Ruiz stratovolcano in Tolima, Colombia, on November 13, 1985. The volcano's eruption after 69 years of dormancy caught nearby towns unaware, even though volcanological organizations had warned the government to evacuate the area after they detected volcanic activity two months earlier. As pyroclastic flows erupted from the volcano's crater, they melted the mountain's glaciers, sending four enormous lahars (volcanically induced mudflows, landslides, and debris flows) down its slopes at . The lahars picked up speed in gullies and engulfed the town of Armero, killing more than 20,000 of its almost 29,000 inhabitants. Casualties in other towns, particularly Chinchiná, brought the overall death toll to 23,000. Footage and photographs of Omayra Sánchez, a young victim of the disaster, were published around the world. Other photographs of the lahars and the impact of the d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cerro Negro De Mayasquer
Cerro Negro de Mayasquer is a volcano on the border of Colombia and Ecuador. It lies north-west of the volcano Chiles, and the two peaks are considered part of the same Chiles-Cerro Negro volcanic complex. These volcanoes, together with Cumbal are andesitic in rock type.Plancha 447-447bis, 2003 A 1936 eruption reported by the Colombian government agency INGEOMINAS may have been from the Ecuadorean volcano Reventador, otherwise the volcano has not erupted for around 160,000 years. See also * List of volcanoes in Colombia * List of volcanoes in Ecuador * List of volcanoes by elevation A list (incomplete) of volcanoes on Earth arranged by elevation in metres. 6,000 metres 5,000 metres 4,000 metres 3,000 metres 2,000 metres 1,000 metres Below 1,000 metres From its base on the ocean floor A list (in ... References Bibliography * Further reading * Andean Volcanic Belt Mountains of Colombia Mountains of Ecuador Stratovolcanoes of C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puracé
Puracé is an andesitic stratovolcano located in the Puracé National Natural Park in the Cauca Department, Colombia. It is part of the North Volcanic Zone of the Andean Volcanic Belt. The volcano is located at the intersection of the Coconucos and Morras Faults.Plancha 365, 2003 It is one of the most active volcanoes in Colombia. Large explosive eruptions occurred in 1849, 1869, 1885, 1949, 1950, 1956, and 1957. There were about a dozen eruptions in the 20th century, the most recent being in 1977. On this occasion, volcanic ash was deposited away. Fumaroles were seen near the summit in 1990, and hot springs emerged from some of the lower slopes. __TOC__ Panorama See also * List of volcanoes in Colombia * List of volcanoes by elevation A list (incomplete) of volcanoes on Earth arranged by elevation in metres. 6,000 metres 5,000 metres 4,000 metres 3,000 metres 2,000 metres 1,000 metres Below 1,000 metres From its base on the ocean flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pasto, Colombia
Pasto, officially San Juan de Pasto (; "Saint John of Pasto"), is the capital of the department of Nariño, in southern Colombia. Pasto was founded in 1537 and named after indigenous people of the area. In the 2018 census, the city had approximately 480.000 inhabitants. Pasto is located in the Atriz Valley on the Andes cordillera, at the foot of the Galeras volcano. History The etymology of the word ''Pasto'' can be traced to the indigenous people who inhabited the region at the arrival of the Spanish conquerors, the Pastos. However, the Atriz Valley itself was inhabited by the Quillacingas. In the 2018 Colombian census, 163,873 people self-identified as Pasto, and in the 2010 Ecuadorian census, 1,409 people self-identified as Pasto. Pasto was founded in 1537 by the Spanish conquistador Sebastián de Belalcázar. In 1539 Lorenzo de Aldana, also a Spanish conquistador, moved the city to its current location, and established it under the name "San Juan de Pasto". A major ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chiles (volcano)
Chiles is a volcano on the border of Colombia and Ecuador. It lies south-east of the volcano Cerro Negro de Mayasquer, and the two peaks are considered part of the same Chiles-Cerro Negro volcanic complex. The volcanoes, together with the Cumbal are andesitic in rock type.Plancha 447-447bis, 2003 A 1936 eruption reported by the Colombian government agency Ingeominas may have been from the Ecuadorean volcano Reventador, otherwise the volcano has not erupted for around 160,000 years. Recent activity On 20 October 2014, the Servicio Geológico Colombiano (SGC) reported that a M 5.8 earthquake, the largest to date, occurred in the vicinity of the Cerro Negro de Mayasquer and Chiles volcanoes at a depth of less than 10 km. The event was felt to the north in Pasto, Colombia, and to the south in Quito, Ecuador. On 21 October 2014 SGC raised the alert level for the volcanic complex to orange (level 3 of 4) noting that a seismic swarm characterized by 4,300 earthquakes was dete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Earthquakes In Colombia
This is a list of earthquakes in Colombia. Colombia is a seismically active country and has a large seismic risk in many areas of its territory due to its location at the boundaries of the Malpelo, Panama, Caribbean, North Andes (where most earthquakes occurred) and South American Plates along the Pacific Ring of Fire. The southeastern and extreme eastern portions of Colombia are not as seismically active as the rest of the country. The first historically registered earthquake felt in Colombia occurred on September 11, 1530, around 10:00 AM, probably with the epicentre near Cumaná, Venezuela. The earthquake was documented by Gonzalo Fernández de Oviedo y Valdés in his work ''La Historia general de las Indias'' and by friar Bartolomé de las Casas in his book ''Historia de Las Indias''.Ramírez, 1975, p.63 The first documented earthquake with its epicentre in present-day Colombia territory took place in 1566,Ramírez, 1975, p.65 with the epicentre estimated around Santander ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cumbal Volcano
Cumbal is a stratovolcano of the Caribe Terrane, located at the Nudo de los Pastos in Nariño, Colombia. It is the southernmost historically active volcano of Colombia and is together with Chiles and Azufral one of the few volcanoes of the Western Ranges. The volcano is dominated by andesites.Plancha 447-447bis, 2003 Plane crash The volcano was the crash site of TAME Flight 120, which struck one of its sides while in a go-around approach to Tulcán on January 28, 2002. There were no survivors among the 94 occupants. Gallery See also * List of volcanoes in Colombia This is a list of active and extinct volcanoes in Colombia. See also * List of earthquakes in Colombia * List of fossiliferous stratigraphic units in Colombia * Geology of Colombia References {{South America topic, state=uncollaps ... * List of volcanoes by elevation References Bibliography * External links * Andean Volcanic Belt Mountains of Colombia Stratovolcano ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doña Juana
Doña Juana ( es, Volcán Doña Juana) is a stratovolcano, located within the Doña Juana-Cascabel Volcanic Complex National Natural Park ( es, Parque Nacional Natural Complejo Volcánico Doña Juana-Cascabel) in Nariño, Colombia. With a previous eruption of VEI 4, Doña Juana is rated as a "large" volcano of "cataclysmic" destructive power. During its last eruption, in 1906, more than 100 people were killed and many houses were destroyed. Its largest known historical eruption was on November 13, 1899. In its prehistory, it is known to have erupted in the 23rd century BC in a caldera-forming eruption of unknown magnitude. __TOC__ Etymology The name of the volcano originated from a legend of the Chincha Indians, within whose native lands it is located: Mama Juana, a beautiful Quiteña, fell in love with Pedro, a commoner, but with the parents opposed to the marriage, they fled, becoming the victims of a curse that turned them into volcanoes. Biodiversity The volc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevado Del Huila
Nevado del Huila (, ) at , is the highest volcano in Colombia, located at the tripoint of the departments of Huila, Tolima and Cauca. It is visible from the city of Cali. The andesitic volcano is located on top of the Ibagué Batholith.Plancha 322, 1999 After being dormant for more than 500 years, the volcano showed heavy signs of activity in 2007 and 2008. As of February 20, 2007, there were more than 7000 "minor" seismic events, and a high state of alert was in place for the departments of Cauca, Huila, Caldas and Valle del Cauca. The volcano erupted twice in April 2007, once in April 2008 and again in November 2008. Any eruption would affect the small villages around the volcano, mostly Páez, where their inhabitants still have in memory the eruption of the Nevado del Ruiz volcano and the destruction of Armero. Eruptions 2007 eruption On April 18, 2007, the volcano erupted twice causing avalanches into the Paez River; this event caused water levels to rise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Azufral
Azufral is a stratovolcano located in the department of Nariño in southern Colombia, west of the town of Túquerres. It is the only volcano of the Western Ranges of the Colombian Andes. Its name derives from the Spanish word for sulfur, ''azufre''. The volcano is considered semi-dormant but there are numerous fumaroles in the summit crater. The summit of the volcano has an altitude of , and the north-western side of the crater contains a crescent-shaped lake named ''Laguna Verde'' ( en, Green Lake) at . The lake is long and wide."El Azufral, seis años como reserva", ''El Tiempo'', June 12, 1996 Retrieved May 2, 2011 and its bright green color is a result of the sulfur and iron-based deposits in the crater. There are also two other much smaller lakes in the crater, ''L ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
