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 |
|---|---|---|---|
| 15 April 2008 | 28 April 2008 | 2 | Observations: Reported |
| 6 February 2005 | 27 February 2005 | 1 | Summit and southern flank · Observations: Reported |
| 3 July 2004 | 16 September 2004 | 2 | Observations: Reported |
| 29 January 2004 | 5 February 2004 | 1 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#264160)