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 |
|---|---|---|---|
| 8 March 1979 | — | 2 | Observations: Reported |
| 16 June 1978 | — | 1 | Observations: Reported |
| 2 July 1972 | — | 1 | Observations: Reported |
| 16 October 1961 | — | 2 | Volcano Uncertain: aerial observation; possibly Lautaro · Observations: Reported |
| 28 December 1959 | 20 January 1960 | 2 | Observations: Reported |
| 15 January 1945 | — | 1 | Observations: Reported |
| 16 February 1933 | — | 2 | Observations: Reported |
| 2 July 1879 | — | ? | Volcano Uncertain: Between lakes San Martín and Viedma |
| 16 October 1876 | — | 2 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#358060)