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 |
|---|---|---|---|
| 12 November 1972 | 16 December 1972 | 1 | Pico Central-Yepocapa saddle · Observations: Reported |
| 16 August 1926 | 19 May 1927 | 2 | Pico Central · Observations: Reported |
| 18 December 1924 | 7 June 1925 | 3 | North slope of Pico Central · Observations: Reported |
| 1450 ± 50 years | — | ? | Correlation: Anthropology |
| 90 ± 100 years | — | ? | Pico Central · Isotopic: 14C (uncalibrated) |
| 260 BCE ± 75 years | — | ? | Pico Central · Isotopic: 14C (uncalibrated) |
| 370 BCE ± 200 years | — | ? | Pico Central · Isotopic: 14C (uncalibrated) |
| 2,710 BCE ± 75 years | — | ? | Yepocapa · Isotopic: 14C (uncalibrated) |
Data: Global Volcanism Program, Smithsonian Institution (#342080)