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 |
|---|---|---|---|
| 16 March 1910 | — | 2 | Observations: Reported |
| 90 BCE ± 100 years | — | ? | Isotopic: 14C (calibrated) |
| 800 BCE ± 500 years | — | ? | Correlation: Tephrochronology |
| 2,320 BCE ± 100 years | — | 5 | Isotopic: 14C (calibrated) |
| 3,740 BCE ± 10 years | — | ? | Isotopic: 14C (calibrated) |
| 7,390 BCE ± 200 years | — | ? | Correlation: Tephrochronology |
| 7,450 BCE ± 500 years | — | 5 | Isotopic: 14C (calibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#358070)