Lascar volcano erupciones
estratovolcán 5592 m / 18,346 ft
Northern Chile, -23.37°S / -67.73°W
Lista de erupción: 2015, 2006-07, 2005, 2002, 2000, 1994-95, 1994, 1993-94, 1993, 1991-92, 1990, 1990, 1987-89, 1986, 1984, 1974, 1972, 1969, 1959-68, 1954, 1951-52, 1940, 1933, 1902, 1898, 1883-85, 1875, 1858, 1854, 1853(?), 1848
After the strong ash emissions between 18-23 April 2006, several small to moderate (probably) phreatic explosions occurred throughout the rest of 2006 and into 2007 at irregular intervals.
On 11 March 2007 an ash cloud from Láscar rose to 5.5-6.7 km altitude and drifted E. On 23 May, 2007, an ash plume from Láscar rose to an altitude of 9.1 km and drifted SSE. On 18 July 2007, an ash plume rose to altitudes of 7.6-9.1 km and drifted NE. After July, 2007, Lascar calmed down.
(Source: GVP monthly reports)
2006 April eruption
An eruption at Lascar volcano started on 18 April 2006 and lasted 5 days. The first of 4 explosions on the first day produced an ash plume that reached ca. 10 km above the volcano (ca. 16 km altitude) and was visible from the El Abra cooper mine 220 km NW of the volcano.
During February to May 2005, a number of mostly smaller phreatic eruptions occurred at Lascar volcano.
A more powerful eruption occurred on 4 May, producing an ash column that reached a height of 11 km and caused fine ash fall in the city of Salta located 285 km SSE of the volcano.
1993 subplinian eruption
The largest eruption of Lascar volcano known in historical times was in 1993: The explosive eruption began late on 18 April with a series of powerful explosions and intensified on 19 April, when it produced a plinian ash column reaching 20-22 km height above the crater. Large pyroclastic flows traveled 7.5 km NW and light ashfall (<0.1 mm) was reported as far as Buenos Aires, Argentina, 1,500 km SE of the volcano.
The area affected by ash fall covered more than 850,000 sq km and stretched into north-central Argentina, southern Paraguay, Uruguay, and southern Brazil.
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