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 |
|---|---|---|---|
| 18 September 1921 | — | 2 | Summit and south flank · Observations: Reported |
| 16 November 1919 | — | 2 | Observations: Reported |
| 2 July 1859 | — | 2 | Observations: Reported |
| 2 July 1858 | — | 2 | Observations: Reported |
| 16 September 1846 | — | 2 | Observations: Reported |
| 16 August 1844 | 16 September 1844 | 2 | Observations: Reported |
| 1694 | — | 3 | Observations: Reported |
| 4 June 1693 | July 1693 | 4 | Observations: Reported |
| 15 June 1687 | — | 3 | Observations: Reported |
| 1683 | — | 3 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#265070)