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 |
|---|---|---|---|
| 9 May 1988 | 17 May 1988 | 3 | Summit, north and south flanks · Observations: Reported |
| 18 May 1901 | — | 2 | Summit and north flank · Observations: Reported |
| 23 November 1890 | 23 November 1890 | 2 | Observations: Reported |
| c. 2 July 1825 | 2 July 1831 | 1 | Observations: Reported |
| 22 April 1824 | 28 June 1824 | 2 | North side · Observations: Reported |
| 11 June 1820 | 8 August 1820 | 2 | Summit, south and NNW flanks · Observations: Reported |
| 11 October 1816 | 16 December 1816 | 2 | Observations: Reported |
| 1778 | — | 2 | Observations: Reported |
| 1775 | — | 2 | Observations: Reported |
| 6 February 1773 | — | 2 | Observations: Reported |
| 19 April 1765 | October 1766 | 2 | Observations: Reported |
| 1762 | — | 2 | Observations: Reported |
| 1749 | — | 2 | Observations: Reported |
| 1722 | — | 2 | Observations: Reported |
| May 1712 | December 1712 | 2 | Observations: Reported |
| 1690 | 22 May 1696 | 3 | Observations: Reported |
| 1683 | — | 3 | Observations: Reported |
| 18 November 1635 | — | 1 | Observations: Reported |
| 16 December 1632 | — | 3 | Observations: Reported |
| 16 March 1615 | April 1615 | 3 | Observations: Reported |
| 1609 | — | 3 | Observations: Reported |
| 1598 | 1602 | 3 | Observations: Reported |
| 17 April 1586 | — | 3 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#265090)