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The eruption began in a sub-plinian style creating a column of volcanic gas, pyroclasts and ash about 8 km in height. The erupting N135° trending fissure had two craters of major activity emplaced at each end; the Gris Crater and El Azufral Crater. Volcanic vents of Cordón Caulle that were not in eruption produced visible steam emissions.
Image of the rhyolitic lava dome of Chaitén Volcano during its 2008–2010 eruption.. Chaitén is a volcanic caldera 3 kilometres (2 mi) in diameter, 17 kilometres (11 mi) west of the elongated ice-capped Michinmahuida volcano and 10 kilometres (6 mi) northeast of the town of Chaitén, near the Gulf of Corcovado in southern Chile.
The 2011–2012 Puyehue-Cordón Caulle eruption was a volcanic eruption that began in the Puyehue-Cordón Caulle volcanic complex in Chile on 4 June 2011. The eruption, which occurred from the Cordón Caulle fissure after 51 years of the volcano being inactive, is one of the largest volcanic eruptions of the 21st century thus far. [ 2 ]
The country's National Geology and Mining Service lists 90 active volcanoes. [2] The volcanoes of the Andes originate from the subduction of the Nazca Plate under the South American Plate, while the volcanoes of Chile's Pacific islands formed from magma coming from three distinct hotspots, Easter, Juan Fernández and San Felix hotspots. The ...
The Chaiten eruption in 2008 has highlighted the hazard that volcanoes constitute, and thus a number of volcanoes including Melimoyu are monitored with seismic stations. [26] Local towns such as Puerto Cisnes may experience tephra falls in case of renewed volcanic activity at Melimoyu, [ 12 ] while lahars and lava bombs would threaten the area ...
Copahue (Spanish pronunciation:) is a stratovolcano in the Andes on the border of Bío Bío Region, Chile and Neuquén Province, Argentina.There are nine volcanic craters along a 2 km (1.2 mi) line, the easternmost of which is historically the most active, and contains a 300 m (1000 ft) wide crater lake with a pH ranging between 0.18 and 0.30. [2]
The eruption is the second-largest historic volcanic eruption in Chile, only behind the 1932 Quizapu eruption. [25] With a volcanic explosivity index of 5, [160] it is one of the largest volcanic eruptions of the 20th century. [21] It formed a 12-kilometre-high (7.5 mi) eruption column and pyroclastic flows within the caldera. [161]
The Kraffts were often the first to arrive at the scene of an active volcano, and became well known in the volcanologist community. [7] Their footage of the effects of volcanic eruptions on the surrounding areas often played a considerable part in gaining the cooperation of local authorities faced with volcanic threats.