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 |
|---|---|---|---|
| 2 August 1888 | 22 March 1890 | 3 | Fossa · Observations: Reported |
| 5 January 1886 | — | 3 | Fossa · Observations: Reported |
| 16 September 1873 | 2 July 1879 | 3 | Fossa · Observations: Reported |
| 1780 | — | 2 | Fossa · Observations: Reported |
| 17 February 1771 | May 1771 | 3 | Fossa · Observations: Reported |
| 1731 | 1739 | 3 | Fossa · Observations: Reported |
| 1727 | — | 3 | Forgia Vecchia II and Fossa · Observations: Reported |
| 1688 | — | ? | Fossa · Observations: Reported |
| 1651 | — | ? | Fossa · Observations: Reported |
| 1631 | — | ? | Observations: Reported |
| March 1626 | April 1626 | 3 | Observations: Reported |
| 1618 | — | ? | Observations: Reported |
| 1550 | — | 3 | Vulcanello III · Observations: Reported |
| 4 February 1444 | — | 3 | Observations: Reported |
| 1230 ± 20 years | — | 0 | Fossa · Correlation: Magnetism |
| 1200 ± 75 years | — | 2 | Vulcanello · Correlation: Magnetism |
| 1040 ± 75 years | — | 2 | Correlation: Magnetism |
| 925 ± 25 years | — | 3 | Observations: Reported |
| 729 | — | ? | Fossa · Observations: Reported |
| c. 526 | — | 3 | Fossa and Vulcanello III? · Observations: Reported |
| 144 | — | ? | Fossa · Observations: Reported |
| 50 ± 50 years | — | ? | Fossa · Observations: Reported |
| 24 BCE ± 5 years | — | ? | Vulcanello ? · Observations: Reported |
| 91 BCE | — | 3 | Vulcanello · Observations: Reported |
| 126 BCE | — | ? | Vulcanello · Observations: Reported |
| 150 BCE ± 300 years | — | ? | Isotopic: Uranium-series |
| 183 BCE | — | 4 | Vulcanello · Observations: Reported |
| 215 BCE | — | ? | Offshore vent · Observations: Reported |
| 300 BCE | — | 2 | Fossa · Observations: Reported |
| 360 BCE ± 10 years | — | 2 | Fossa · Observations: Reported |
| c. 475 BCE | — | ? | Fossa · Observations: Reported |
| 950 BCE ± 500 years | — | 0 | Fossa · Isotopic: Uranium-series |
| c. 1,300 BCE | — | 3 | Fossa · Correlation: Tephrochronology |
| 2,650 BCE ± 1,700 years | — | 3 | Fossa · Isotopic: K/Ar |
| 3,550 BCE ± 1,300 years | — | 0 | Fossa · Isotopic: K/Ar |
| 6,350 BCE ± 1,600 years | — | ? | Isotopic: K/Ar |
| c. 6,550 BCE | — | ? | NW side (Lentia) · Isotopic: K/Ar |
Data: Global Volcanism Program, Smithsonian Institution (#211050)