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 |
|---|---|---|---|
| 230 BCE ± 200 years | — | 5 | Casablanca (Raihuén crater) · Isotopic: 14C (calibrated) |
| 960 BCE ± 150 years | — | 5 | Isotopic: 14C (calibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#357153)