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 |
|---|---|---|---|
| 20 February 2025 | 25 April 2025 | 1 | Observations: Reported |
| 27 March 2024 | 27 March 2024 | 1 | Observations: Reported |
| 25 November 2006 | 3 March 2007 | 1 | Observations: Reported |
| 23 February 2005 | 5 May 2005 | 1 | Observations: Reported |
| 23 June 2004 | 4 July 2004 | 1 | Observations: Satellite (visual) |
| 24 June 2002 | 5 July 2002 | 1 | Observations: Photo / Video |
| 8 May 1998 | 8 July 1998 | 3 | Observations: Reported |
| 4 March 1987 | 19 March 1987 | 2 | Observations: Reported |
| 25 August 1973 | — | 0 | Observations: Reported |
| 2 July 1907 | — | ? | Observations: Reported |
| 2 July 1812 | — | 3 | Sarichef or more probably Kliuchef · Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#311160)