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 |
|---|---|---|---|
| 5 February 1898 | 15 February 1898 | 2 | SW flank 400 m (Mt. Anyar) · Observations: Reported |
| 5 September 1896 | 19 September 1896 | 2 | Observations: Reported |
| 18 November 1893 | — | 2 | Observations: Reported |
| 25 September 1891 | 5 October 1891 | 2 | Observations: Reported |
| 5 September 1890 | 16 January 1891 | 2 | Observations: Reported |
| 23 March 1890 | 16 May 1890 | 2 | Observations: Reported |
| 7 September 1889 | 16 November 1889 | 2 | Observations: Reported |
| 16 September 1888 | 6 October 1888 | 2 | Observations: Reported |
| 16 November 1887 | 27 February 1888 | 2 | Observations: Reported |
| 3 July 1887 | 9 July 1887 | 2 | Observations: Reported |
| 11 March 1885 | 15 October 1886 | 2 | Observations: Reported |
| 6 January 1884 | 23 June 1884 | 2 | Observations: Reported |
| 13 April 1883 | 4 May 1883 | 2 | Observations: Reported |
| 24 April 1877 | 12 May 1877 | 3 | Observations: Reported |
| 20 May 1874 | 21 August 1874 | 2 | Observations: Reported |
| 15 August 1872 | 18 September 1872 | 2 | Observations: Reported |
| 18 August 1870 | 5 February 1871 | 2 | Summit and SW flank · Observations: Reported |
| 2 March 1870 | 5 March 1870 | 2 | Observations: Reported |
| 12 September 1869 | — | 2 | Observations: Reported |
| 6 April 1869 | 4 May 1869 | 2 | Summit and south slope · Observations: Reported |
| 9 June 1864 | 16 July 1864 | 2 | Observations: Reported |
| 2 July 1861 | — | 2 | Observations: Reported |
| 27 February 1859 | 16 March 1859 | 2 | Observations: Reported |
| 1 March 1856 | 14 June 1856 | 2 | Observations: Reported |
| 16 June 1849 | 16 September 1849 | 2 | Summit and north flank · Observations: Reported |
| 25 September 1847 | — | 2 | Observations: Reported |
| 26 March 1847 | 26 June 1847 | 2 | Observations: Reported |
| 16 August 1843 | 16 September 1844 | 2 | Observations: Reported |
| 16 July 1841 | 16 August 1842 | 2 | Observations: Reported |
| 18 October 1838 | — | 2 | Observations: Reported |
| 4 July 1838 | 6 July 1838 | 2 | Observations: Reported |
| 16 February 1830 | 16 March 1830 | 2 | Observations: Reported |
| 16 January 1829 | 16 February 1829 | 2 | Observations: Reported |
| 2 July 1826 | — | 2 | Observations: Reported |
| 1 January 1824 | 31 January 1824 | 2 | Observations: Reported |
| 15 December 1821 | 5 January 1822 | 2 | Observations: Reported |
| 8 October 1818 | — | 2 | Observations: Reported |
| 2 July 1817 | — | 2 | Observations: Reported |
| 8 December 1808 | — | 2 | Observations: Reported |
| 16 May 1806 | — | 2 | Observations: Reported |
| 1799 | — | 2 | Observations: Reported |
Data: Global Volcanism Program, Smithsonian Institution (#263320)