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 |
|---|---|---|---|
| 28 April 2025 | 29 April 2025 | 2 | Observations: Reported |
| 5 June 2022 | 12 June 2022 | 2 | Observations: Reported |
| 5 June 2017 | 5 June 2017 | 1 | SE Flank Crater area · Observations: Reported |
| 10 June 2016 | 29 December 2016 | 2 | Upper SE flank and summit vent · Observations: Reported |
| 22 February 2016 | 22 February 2016 | 2 | Summit crater · Observations: Reported |
| 1 May 2015 | 17 July 2015 | 2 | Summit crater · Observations: Reported |
| 6 November 2010 | 13 May 2011 | 2 | Summit crater · Observations: Reported |
| 10 October 2006 | 4 October 2007 | 2 | Observations: Reported |
| 21 March 2006 | 28 June 2006 | 2 | Observations: Reported |
| 27 November 1994 | 28 January 1995 | 2 | Observations: Reported |
| 20 February 1988 | 8 March 1988 | 2 | Observations: Reported |
| 25 June 1983 | 29 June 1983 | 2 | Observations: Reported |
| 9 April 1981 | 27 April 1981 | 3 | Observations: Reported |
| 27 December 1979 | 28 September 1980 | 3 | Observations: Reported |
| 29 July 1978 | 14 August 1978 | 2 | Observations: Reported |
| 25 December 1933 | — | 2 | Observations: Reported |
| 16 June 1928 | — | 2 | Observations: Reported |
| 16 October 1918 | 16 May 1922 | 2 | Observations: Reported |
| 18 January 1916 | 22 January 1916 | 2 | Observations: Reported |
| 2 July 1894 | — | 2 | Observations: Reported |
| 2 July 1892 | — | 2 | Observations: Reported |
| 2 July 1889 | — | ? | Observations: Reported |
| 2 July 1886 | — | 2 | Observations: Reported |
| c. 950 | — | ? | Isotopic: 14C (uncalibrated) |
| c. 3,050 BCE | — | ? | Isotopic: 14C (uncalibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#273010)