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 March 2024 | 8 May 2024 | 1 | SE flank · Observations: Satellite (visual) |
| 12 January 2020 | 13 January 2020 | 0 | Observations: Reported |
| 16 June 2018 | 21 June 2018 | 1 | Radial fissure on NNE flank · Observations: Reported |
| 4 September 2017 | 8 September 2017 | 2 | SSW caldera rim and La Cumbre crater · Observations: Reported |
| 10 April 2009 | 28 April 2009 | 2 | SW flank (400 m) · Observations: Reported |
| 13 May 2005 | 29 May 2005 | 2 | South caldera rim · Observations: Reported |
| 25 January 1995 | 8 April 1995 | 2 | SW flank · Observations: Reported |
| 19 April 1991 | 24 April 1991 | 2 | Base of ESE and NW caldera wall · Observations: Reported |
| 14 September 1988 | 16 September 1988 | 2 | East caldera wall · Observations: Reported |
| 30 March 1984 | — | 1 | NW corner of caldera · Observations: Reported |
| 1 August 1981 | — | 0 | South caldera rim · Observations: Reported |
| 8 August 1978 | 26 August 1978 | 2 | NW caldera bench · Observations: Reported |
| 23 March 1977 | 27 March 1977 | 1 | SE caldera bench · Observations: Reported |
| 9 December 1973 | 16 December 1973 | 2 | ESE caldera wall · Observations: Reported |
| 4 June 1972 | — | 0 | SE caldera bench · Observations: Reported |
| 11 June 1968 | 4 July 1968 | 4 | West caldera wall · Observations: Reported |
| 21 May 1968 | 23 May 1968 | 2 | ESE flank (600 m) · Observations: Reported |
| 21 March 1961 | 16 September 1961 | 2 | SE flank · Observations: Reported |
| 16 September 1958 | 30 December 1958 | 2 | SE, SW and west caldera rim · Observations: Reported |
| 16 March 1937 | 16 April 1937 | 0 | Observations: Reported |
| 13 December 1927 | — | 0 | South flank near Punta Mangle · Observations: Reported |
| 2 July 1926 | — | ? | Observations: Reported |
| 14 May 1917 | — | 0 | Cape Hammond (SW flank) · Observations: Reported |
| 10 April 1888 | — | 1 | Observations: Reported |
| 6 November 1846 | 24 November 1846 | 0 | East flank · Observations: Reported |
| 14 February 1825 | 16 October 1825 | 3 | East summit and SE flank · Observations: Reported |
| 15 May 1819 | 18 May 1819 | 2 | Observations: Reported |
| c. 2 July 1817 | — | 2 | Volcano Uncertain: Western Galápagos |
| 16 July 1814 | 16 August 1814 | 2 | Observations: Reported |
| 14 July 1813 | — | 2 | South flank · Observations: Reported |
| c. 1550 | — | 0 | Isotopic: Cosmic Ray Exposure |
| c. 1150 | — | 0 | Isotopic: Cosmic Ray Exposure |
| 950 ± 500 years | — | 0 | Isotopic: Cosmic Ray Exposure |
Data: Global Volcanism Program, Smithsonian Institution (#353010)