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 |
|---|---|---|---|
| 25 October 2025 | 4 December 2025 | 2 | Observations: Satellite (visual) |
| 7 November 2018 | 7 May 2019 | 1 | Peteroa Crater · Observations: Reported |
| 17 February 2011 | 26 June 2011 | 2 | Peteroa · Observations: Reported |
| 6 September 2010 | 13 October 2010 | 2 | Peteroa · Observations: Reported |
| 18 November 1998 | 21 November 1998 | 1 | Observations: Reported |
| 9 February 1991 | 2 March 1991 | 2 | Peteroa · Observations: Reported |
| 16 January 1962 | — | 1 | Peteroa · Observations: Reported |
| 10 July 1960 | — | 1 | Petoroa (1889-94 crater) · Observations: Reported |
| 6 November 1959 | — | 1 | Petoroa (1889-94 crater) · Observations: Reported |
| 16 September 1938 | 16 October 1938 | 2 | Peteroa · Observations: Reported |
| 16 April 1937 | 5 May 1937 | 2 | Petoroa (south of 1889-94 crater) · Observations: Reported |
| 16 September 1889 | 2 July 1894 | 2 | Peteroa (SE of 1762 crater) · Observations: Reported |
| 2 July 1878 | — | 2 | Peteroa · Observations: Reported |
| 2 July 1860 | — | 2 | Peteroa · Observations: Reported |
| 16 February 1837 | — | 2 | Peteroa · Observations: Reported |
| 2 July 1835 | — | 2 | Peteroa · Observations: Reported |
| 3 December 1762 | — | 4 | Peteroa (2 km S of Planchón summit) · Observations: Reported |
| November 1751 | December 1751 | 2 | Observations: Reported |
| 1660 | — | 3 | Peteroa · Observations: Reported |
| 900 ± 100 years | — | 3 | Isotopic: 14C (uncalibrated) |
| 5,080 BCE ± 75 years | — | 3 | Isotopic: 14C (uncalibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#357040)