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 |
|---|---|---|---|
| 11 February 1923 | 16 April 1923 | 3 | Observations: Reported |
| c. 3,050 BCE | — | 5 | Isotopic: 14C (uncalibrated) |
| c. 6,050 BCE | — | ? | Correlation: Tephrochronology |
| 7,050 BCE ± 1,000 years | — | 5 | Correlation: Tephrochronology |
Data: Global Volcanism Program, Smithsonian Institution (#300040)