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 |
|---|---|---|---|
| 27 January 1969 | 30 January 1969 | 3 | Crater II (upper SW flank) · Observations: Reported |
| 4 September 1953 | 5 September 1953 | 2 | Observations: Reported |
| 2 July 1882 | — | 2 | Observations: Reported |
| 1 September 1871 | — | 2 | Observations: Reported |
| 4 May 1868 | — | 2 | Observations: Reported |
| 16 January 1867 | — | 2 | Observations: Reported |
| 16 May 1844 | — | 2 | Observations: Reported |
| c. 1671 | — | 3 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#264110)