Nevado del Ruiz

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Context

• Colombian authorities plan to evacuate people living within 15 kilometers of the Nevado del Ruiz volcano, which is being monitored for a possible eruption.

Details

• Nevado del Ruiz is a volcano on the border of the departments of Caldas and Tolima in Colombia.
• It is about 129 km 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.
• The volcano usually generates Vulcanian to Plinian eruptions, which produce swift-moving currents of hot gas and rock called pyroclastic flows.
• The volcano is part of Los Nevados National Natural Park, which also contains several other volcanoes.
• Nevado del Ruiz lies within the Pacific Ring of Fire, a region that encircles the Pacific Ocean and contains some of the world's most active volcanoes.
• It lies in the North Volcanic Zone of the Andean Volcanic Belt.

Note: The Andean Volcanic Belt is produced by the eastward subduction of the oceanic Nazca Plate beneath the South American continental plate.

TYPES OF VOLCANOES: https://www.iasgyan.in/blogs/types-of-volcano

Andes

• The  Andean Mountain Range are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America. 
• The Andes extend from north to south through seven South American countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina.
• The Andes Mountains are the highest mountain range outside Asia. The highest mountain outside Asia, Argentina's Mount Aconcagua, rises to an elevation of about 6,961 m above sea level.
• The world's highest volcanoes in the Andes, including Ojos del Salado on the Chile-Argentina border.

PRELIMS PRACTICE QUESTION Q. Match the following.        Volcanoes                                               Place a)    Nevado del Ruiz                                    i) US b)   Shiveluch volcano                                  ii) Mexico c)    Mount St. Helens                                  iii) Russia d)   Cotopaxi                                               iv) Equador I) a-ii, b-iii, c-i, d-iv II) a-iv, b-iii, c-i, d-iv III) a-iv, b-iii, c-iv, d-i IV) a-ii, b-iv, c-iii, d-i Answer: Option I

 

https://www.reuters.com/world/americas/colombia-evacuate-those-closest-nevado-del-ruiz-volcano-2023-04-04/