Nevado del Huila

Nevado del Huila (/nɛˈvɑːdoʊ dɛl ˈwiːlə/, Spanish pronunciation: [neˈβaðo ðel ˈwila]) at 5,364 metres (17,598 ft),[1] 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.[2] The andesitic volcano is located on top of the Ibagué Batholith.[3]

Nevado del Huila
Nevado del Huila in December 2008
Highest point
Elevation5,364 m (17,598 ft)
Prominence2,650 m (8,690 ft)
ListingUltra
Coordinates02°55′48″N 76°01′48″W 
Geography
Nevado del Huila
Location of Nevado del Huila in Colombia
LocationCauca, Huila & Tolima
 Colombia
Parent rangeCentral Ranges
 Andes
Geology
Mountain typeAndesitic stratovolcano
Volcanic arc/beltNorth Volcanic Zone
 Andean Volcanic Belt
Last eruption2008 to 2012
Major volcanoes in Colombia

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.[4] 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 along the Magdalena River. More than 4,000 people were evacuated with no casualties reported.[5][6]

2008 activity and eruption

Nevado del Huila became active again in March 2008. After a multitude of earthquakes inside the volcano, Colombian authorities declared a state of yellow alert on March 18.[7] The state of alert was increased to orange on March 29, meaning an eruption could be expected within two weeks. Hundreds of people were evacuated.[8] On April 14, 2008 at 11:08 pm, an ash eruption took place, prompting the government to issue a red alert and evacuate 13,000 to 15,000 people from around the mountain.[9] The state of red alert was again lowered to orange on April 16, following diminished activity.[10]

November 2008 eruption

On November 20, 2008, the volcano erupted at 02:45 GMT (at 21:45 on November 20 local time) according to Colombian Institute of Geology and Mining.[11] An immediate mass-scale evacuation was put in motion by the Colombian authorities, which the inhabitants of some towns reportedly refused. There were no injured reported at the time.[12] On November 23, 2008, BBC News, citing Colombian authorities, announced that the eruption had claimed ten lives, with 12,000 nearby residents being evacuated and emergency services unable to reach many of the more remote affected locations.[13] The eruption had triggered an avalanche of earth and debris that damaged houses, bridges and crops on plantations.[14] The three small towns of Paicol, La Plata and Belalcázar along the Páez River were affected by this eruption.[15]

Extensive instrumentation of the volcano, put in place by the existing national system for prevention and care of disasters,[16] which includes training of local inhabitants in high-risk regions and deployment of alarms in nearby towns, reportedly prevented large-scale deaths.[11] President Álvaro Uribe ordered the Air Force of Colombia to create an "air bridge" to provide supplies for cut off towns along the Páez River.[17]

See also

References
  1. "Global Volcanism Program | Nevado del Huila". volcano.si.edu. Retrieved 2018-07-20.
  2. Paz, Manuel María. "View of Cali and of the Snow-Capped Mount Huila, Province of Buenaventura". World Digital Library. Retrieved 2014-05-22.
  3. Plancha 322, 1999
  4. (in Spanish) Reducción de actividad sísmica de Nevado del Huila aligera estado de emergencia en zonas cercanas, El Tiempo, February 20, 2007. Accessed February 20, 2007.
  5. (in Spanish) Mudslides occurred, but like in many eruptions, lava was not present.Destrucción de cuatro puentes y numerosos cultivos deja a su paso avalancha en el Cauca, El Tiempo
  6. "Thousands flee from Colombia volcano". CNN. Archived from the original on April 29, 2007. Retrieved 2008-11-24.
  7. Yellow alert for Colombian volcano Nevado del Huila
  8. State of alert volcano Nevado del Huila raised to orange
  9. Colombian volcano erupts in shower of hot ash; authorities declare alert, International Herald Tribune, April 15, 2008.
  10. Reduced activity Nevada de Huila volcano, Colombia Reports, April 16, 2008.
  11. "Nevado del Huila Volcano Erupts in Colombia". Latin America Herald Tribune. November 23, 2008. Retrieved 2008-11-23.
  12. "Nevado del Huila volcano erupts; thousands evacuated". Colombia Reports. November 23, 2008. Retrieved 2008-11-20.
  13. "Colombia volcano claims 10 lives". BBC News. November 23, 2008. Retrieved 2008-11-23.
  14. "Crops damaged by Colombian volcano eruption". Fairfax New Zealand. November 22, 2008. Retrieved 2008-11-23.
  15. "Volcano erupts in southern Colombia". Miami Herald. November 21, 2008. Retrieved 2008-11-23.
  16. Dirección Nacional para la Prevención y Atención de Desastres
  17. "Colombian volcano sets off landslides". Associated Press. November 22, 2008. Retrieved 2008-11-23.

Bibliography
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.