Karthala – shield volcano, Comoros

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 January 2007	15 January 2007	2	Chahalé crater · Observations: Reported
28 May 2006	3 June 2006	0	Chahalé crater · Observations: Reported
24 November 2005	8 December 2005	3	Chahalé crater · Observations: Reported
16 April 2005	18 April 2005	2	Chahalé crater · Observations: Reported
11 July 1991	11 July 1991	2	Choungou-Chahalé (Choungou-Chamadji) · Observations: Reported
5 April 1977	10 April 1977	1	SW flank · Observations: Reported
8 September 1972	5 October 1972	1	North end of summit crater · Observations: Reported
12 July 1965	12 July 1965	2	Between Changomeni & Chahalé Craters · Observations: Reported
1 June 1956	—	2	Chahalé crater · Observations: Reported
10 February 1952	12 February 1952	2	Chahalé crater · Observations: Reported
22 April 1948	16 June 1948	2	Cheminee Nord (Changomeni) · Observations: Reported
2 July 1928 ± 2 years	—	1	Observations: Reported
11 August 1918	26 August 1918	3	NE flank, Changomeni, NE Chahalé · Observations: Reported
16 March 1910	16 March 1910	1	North flank (1300 m) · Observations: Reported
25 February 1904	16 April 1904	2	North flank (1300 m) · Observations: Reported
16 March 1883	2 July 1884	2	SE flank · Observations: Reported
2 July 1880	—	2	SE flank (Badjini Massif) · Observations: Reported
2 July 1876	—	0	SE flank (Badjini Massif) · Observations: Reported
2 July 1872	—	2	NW flank (Diboini Plateau) · Observations: Reported
2 July 1865	—	2	Observations: Reported
29 December 1860	—	0	SE flank (Badjini Massif, 1200 m) · Observations: Reported
2 July 1859	—	2	NW flank (Diboini Plateau fissures) · Observations: Reported
2 July 1858	—	2	Upper NE flank (2200 m) · Observations: Reported
2 July 1857	—	2	SE flank (Badjini Massif) & summit · Observations: Reported
1 July 1855	—	2	SE flank · Observations: Reported
c. 2 July 1850	—	0	West-SW flank (400 m) · Observations: Reported
2 July 1848	—	0	SE flank · Observations: Reported
2 July 1833	—	?	Summit caldera ? · Observations: Reported
2 July 1830	—	2	Observations: Reported
16 May 1828	—	2	Observations: Reported
31 December 1821	—	?	Observations: Reported
31 December 1814	—	?	Observations: Reported
2 July 1808	—	?	Observations: Reported
1050 ± 150 years	—	?	Observations: Reported

Data: Global Volcanism Program, Smithsonian Institution (#233010)