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 |
|---|---|---|---|
| 1080 ± 100 years | — | 5 | Kamuinupuri · Isotopic: 14C (calibrated) |
| 350 ± 100 years | — | 2 | Kamuinupuri · Isotopic: 14C (calibrated) |
| 150 ± 100 years | — | 4 | Kamuinupuri · Isotopic: 14C (calibrated) |
| 2,050 BCE ± 40 years | — | 4 | Kamuinupuri · Isotopic: 14C (calibrated) |
| 2,800 BCE ± 750 years | — | 3 | Kamuinupuri · Correlation: Tephrochronology |
| 3,550 BCE ± 40 years | — | 4 | Kamuinupuri · Isotopic: 14C (calibrated) |
| 5,550 BCE ± 100 years | — | 6 | Isotopic: 14C (calibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#285081)