Eruption history
VEI – Volcanic Explosivity Index: 0 = lava outpouring, 4 = like Eyjafjallajökull 2010, 6 = like Pinatubo 1991, 7 = like Tambora 1815. The scale is logarithmic – each step is about 10 times more material.
| Start | End | VEI | Vent and dating |
|---|---|---|---|
| 4 June 2011 | 21 April 2012 | 5 | Cordón Caulle, N of the 1960 eruption fissure · Observations: Reported |
| 2 July 1990 | — | 1 | Cordón Caulle · Observations: Reported |
| 24 May 1960 | 30 July 1960 | 3 | Cordón Caulle · Observations: Reported |
| 6 March 1934 | — | 2 | Cordón Caulle · Observations: Reported |
| 7 January 1929 | — | 2 | Cordón Caulle · Observations: Reported |
| 13 December 1921 | 12 February 1922 | 3 | Cordón Caulle-Cordillera Nevada · Observations: Reported |
| 2 July 1919 | 2 July 1920 | 2 | Cordón Caulle · Observations: Reported |
| 8 February 1914 | — | 2 | Cordón Caulle · Observations: Reported |
| c. 2 July 1905 | — | 2 | Cordón Caulle · Observations: Reported |
| c. 2 July 1893 | — | 2 | Cordón Caulle · Observations: Reported |
| c. 1759 | — | 2 | Cordón Caulle · Observations: Reported |
| 1220 ± 150 years | — | ? | Isotopic: 14C (calibrated) |
| 1140 ± 100 years | — | ? | Isotopic: 14C (calibrated) |
| 860 ± 75 years | — | 5 | Puyehue · Isotopic: 14C (calibrated) |
| 500 ± 100 years | — | ? | Isotopic: 14C (calibrated) |
| 140 ± 300 years | — | ? | Puyehue? · Correlation: Tephrochronology |
| 110 ± 200 years | — | ? | Isotopic: 14C (calibrated) |
| 490 BCE ± 300 years | — | ? | Isotopic: 14C (calibrated) |
| 990 BCE ± 500 years | — | ? | Correlation: Tephrochronology |
| 1,490 BCE ± 150 years | — | ? | Isotopic: 14C (calibrated) |
| 3,250 BCE ± 2,400 years | — | ? | Puyehue · Isotopic: Ar/Ar |
| 4,230 BCE ± 200 years | — | ? | Isotopic: 14C (calibrated) |
| 4,450 BCE ± 900 years | — | ? | Puyehue · Isotopic: Ar/Ar |
| c. 4,460 BCE | — | ? | Correlation: Tephrochronology |
| 4,690 BCE ± 200 years | — | ? | Isotopic: 14C (calibrated) |
| 5,080 BCE ± 150 years | — | 5 | Puyehue · Isotopic: 14C (calibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#357150)