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 |
|---|---|---|---|
| 3 September 1630 | 2 November 1630 | 5 | South end of caldera (Pico da Areia) · Observations: Reported |
| 1441 ± 2 years | — | 4 | Center of caldera (Gaspar) · Observations: Reported |
| 1430 ± 100 years | — | 3 | East caldera floor · Isotopic: 14C (uncalibrated) |
| 1170 ± 100 years | — | 4 | E caldera floor (Lake crater) · Isotopic: 14C (uncalibrated) |
| 840 ± 100 years | — | 4 | Center of caldera (Gaspar) · Isotopic: 14C (uncalibrated) |
| 80 ± 100 years | — | 5 | N floor of younger caldera · Isotopic: 14C (uncalibrated) |
| 360 BCE ± 150 years | — | ? | Isotopic: 14C (uncalibrated) |
| 1,670 BCE ± 1,460 years | — | ? | Correlation: Tephrochronology |
| c. 4,570 BCE | — | ? | East rim of caldera (Pico do Canário) · Isotopic: 14C (uncalibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#382100)