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 |
|---|---|---|---|
| 12 August 1938 | — | 2 | Observations: Reported |
| 2 July 1906 | — | 2 | Observations: Reported |
| 1710 ± 10 years | — | 2 | Observations: Reported |
| c. 1350 | — | ? | Correlation: Tephrochronology |
| c. 750 | — | ? | Correlation: Tephrochronology |
| 550 BCE ± 100 years | — | ? | Correlation: Tephrochronology |
| c. 1,850 BCE | — | ? | Correlation: Tephrochronology |
| c. 3,050 BCE | — | ? | Correlation: Tephrochronology |
| c. 5,550 BCE | — | ? | Correlation: Tephrochronology |
| c. 7,050 BCE | — | ? | Correlation: Tephrochronology |
| c. 7,550 BCE | — | ? | Correlation: Tephrochronology |
Data: Global Volcanism Program, Smithsonian Institution (#290320)