Cile · Stratovulcano
Aguas Calientes
Lascar
- Tipo
- Stratovulcano
- Altitudine
- 5592 m
- Ultima eruzione
- 2026
- Tipo
- Stratovulcano
- Paese
- Cile
- Regione
- Sud America / Central Andean Volcanic Arc
- Altitudine
- 5592 m
- Coordinate
- -23.370, -67.730
- Ultima eruzione
- 2026
- Contesto tettonico
- Zona di subduzione / Crosta continentale (> 25 km)
- Forma vulcanica
- Composito
- Roccia principale
- Andesite / Andesite basaltica
Sintesi geologica
Láscar is the most active volcano of the northern Chilean Andes. The andesitic-to-dacitic stratovolcano contains six overlapping summit craters. Prominent lava flows descend its NW flanks. An older, higher stratovolcano 5 km E, Volcán Aguas Calientes, displays a well-developed summit crater and a probable Holocene lava flow near its summit (de Silva and Francis, 1991). Láscar consists of two major edifices; activity began at the eastern volcano and then shifted to the western cone. The largest eruption took place about 26,500 years ago, and following the eruption of the Tumbres scoria flow about 9000 years ago, activity shifted back to the eastern edifice, where three overlapping craters were formed. Frequent small-to-moderate explosive eruptions have been recorded since the mid-19th century, along with periodic larger eruptions that produced ashfall hundreds of kilometers away. The largest historical eruption took place in 1993, producing pyroclastic flows to 8.5 km NW of the summit and ashfall in Buenos Aires.
Storia delle eruzioni
38 registrateGlossarioCronologia dettagliata
- 2026VEI ?Osservata2026-02-08 – 2026-02-08
- 2022VEI 3Osservata2022-12-10 – 2023-02-03
- 2015VEI 2Osservata2015-10-30 – 2017-04-02Summit craters
- 2013VEI 1Osservata2013-04-02 – 2013-11-20Central active crater
- 2006VEI 3Osservata2006-04-18 – 2007-07-18
- 2005VEI 3Osservata2005-05-04 – 2005-05-04
- 2003VEI 1Metodo non indicato2003-12-09 – 2003-12-09
- 2002VEI 2Osservata2002-10-26 – 2002-10-27
- 2001VEI ?Metodo non indicato2001-05-17 – 2001-07-05
- 2000VEI 2Osservata2000-07-20 – 2001-01-18
- 1996VEI 2Osservata1996-10-18 – 1996-10-18
- 1994VEI 2Osservata1994-07-20 – 1994-07-26
- 1994VEI 2Osservata1994-11-13 – 1995-07-20
- 1993VEI 4Osservata1993-01-30 – 1993-08-16Western crater of east summit cone
- 1993VEI 2Osservata1993-12-17 – 1994-02-27
- 1991VEI 2Osservata1991-10-21 – 1992-05-23
- 1990VEI 1Osservata1990-11-24 – 1990-11-24
- 1987VEI 3Osservata1987-11-16 – 1990-04-06Western crater of east summit cone
- 1986VEI 3Osservata1986-09-14 – 1986-09-16Western crater of east summit cone
- 1984VEI 0Osservata1984-12-16 – 1985-07-16Western crater of east summit cone
- 1974VEI 1Metodo non indicato1974-07-16 – 1974-09-16
- 1972VEI 2Metodo non indicato1972-07-02 – fine sconosciuta
- 1969VEI 1Osservata1969-05-16 – fine sconosciuta
- 1959VEI 2Osservata1959-11-16 – 1968-01-31
- 1954VEI 2Osservata1954-06-16 – 1954-07-16
- 1951VEI 2Osservata1951-11-16 – 1952-02-19East summit crater
- 1940VEI 2Osservata1940-07-02 – fine sconosciuta
- 1933VEI 2Osservata1933-10-09 – 1933-12-16
- 1902VEI 2Osservata1902-07-02 – fine sconosciuta
- 1898VEI 2Osservata1898-07-02 – 1900-07-02
- 1883VEI 2Osservata1883-07-02 – 1885-07-02
- 1875VEI 2Osservata1875-07-02 – fine sconosciuta
- 1858VEI 2Osservata1858-04-16 – 1858-12-16
- 1854VEI 1Osservata1854-01-20 – 1854-01-30Lascar or Aguas Calientes
- 1853VEI 2Metodo non indicato1853-07-02 – fine sconosciuta
- 1848VEI 2Osservata1848-07-02 – fine sconosciutaLascar or Agua Calientes
- 5150 a.C. (±1250 anni)VEI 0Stima geologica5150 a.C. – fine sconosciutaEastern crater
- 7250 a.C.VEI ?Stima geologica7250 a.C. – fine sconosciutaLascar II (Tumbres scoria flow)
Vulcani nelle vicinanze
Link esterni
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