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 |
|---|---|---|---|
| 3 August 1727 | 1 May 1728 | 4 | Caldera, west flank (to 1100 m) · Observations: Reported |
| 5 June 1362 | 15 October 1362 | 5 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#374010)