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 |
|---|---|---|---|
| 2 May 2008 | 31 May 2011 | 4 | Observations: Reported |
| 1640 ± 18 years | — | 4 | Isotopic: 14C (calibrated) |
| 3,100 BCE ± 220 years | — | 5 | Isotopic: 14C (calibrated) |
| 6,650 BCE ± 1,300 years | — | ? | Correlation: Tephrochronology |
| 7,750 BCE ± 200 years | — | 5 | Isotopic: 14C (calibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#358041)