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 |
|---|---|---|---|
| 1 September 1996 | 1 September 1996 | 1 | Numanotaira · Observations: Reported |
| 17 July 1900 | 17 July 1900 | 2 | Numanotaira · Observations: Reported |
| 24 August 1899 | 12 November 1899 | 2 | Numanotaira · Observations: Reported |
| 950 ± 50 years | — | ? | Numanotaira · Correlation: Tephrochronology |
| 50 BCE ± 900 years | — | ? | Numanotaira · Correlation: Tephrochronology |
| 590 BCE ± 200 years | — | 3 | Numanotaira · Isotopic: 14C (calibrated) |
| 1,550 BCE ± 1,100 years | — | ? | Numanotaira · Correlation: Tephrochronology |
| 2,600 BCE ± 50 years | — | 3 | Numanotaira · Isotopic: 14C (calibrated) |
| 4,300 BCE ± 850 years | — | 3 | Numanotaira · Correlation: Tephrochronology |
| 6,150 BCE ± 100 years | — | 3 | Numanotaira · Isotopic: 14C (calibrated) |
| 6,650 BCE ± 100 years | — | 3 | Numanotaira · Isotopic: 14C (calibrated) |
| c. 8,050 BCE | — | 3 | Numanotaira · Correlation: Tephrochronology |
Data: Global Volcanism Program, Smithsonian Institution (#283170)