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 |
|---|---|---|---|
| 7 May 1968 | 16 June 1968 | 1 | East flank · Observations: Reported |
| 16 March 1964 | 16 March 1964 | 1 | Observations: Reported |
| 13 March 1932 | — | 2 | SE flank · Observations: Reported |
| 8 December 1903 | — | 2 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#265060)