Concepcion – stratovolcano, Nicaragua

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
16 May 2024	16 May 2024	2	Observations: Reported
11 December 2009	12 March 2011	1	Observations: Reported
30 July 2008	30 July 2008	1	Observations: Reported
24 November 2007	20 December 2007	2	Observations: Reported
9 February 2007	10 July 2007	1	Observations: Reported
1 September 2006	21 September 2006	2	Observations: Reported
28 July 2005	10 November 2005	2	Observations: Reported
27 December 1999	29 December 1999	1	Observations: Reported
16 June 1988	—	2	Observations: Reported
2 December 1985	20 April 1986	1	Observations: Reported
16 December 1984	2 January 1985	2	Observations: Reported
16 March 1983	25 March 1983	2	Observations: Reported
15 January 1982	14 February 1982	2	Observations: Reported
30 March 1978	16 May 1978	2	Observations: Reported
4 April 1977	3 May 1977	2	Observations: Reported
24 December 1973	12 January 1974	2	Observations: Reported
9 May 1963	—	1	Observations: Reported
16 June 1962	16 June 1962	2	Observations: Reported
27 March 1957	16 July 1957	2	Observations: Reported
16 July 1951	16 May 1955	2	Observations: Reported
2 July 1948	2 July 1950	1	Observations: Reported
16 April 1944	16 December 1945	2	Observations: Reported
16 February 1935	16 February 1935	2	Observations: Reported
16 August 1929	16 October 1929	2	Observations: Reported
25 January 1928	—	2	Observations: Reported
16 December 1921	16 May 1926	2	Observations: Reported
16 January 1918	16 July 1919	2	Observations: Reported
16 September 1907	2 July 1910	2	Observations: Reported
2 July 1902	—	2	Observations: Reported
16 April 1891	16 April 1891	2	Observations: Reported
2 July 1884	2 July 1886	2	Observations: Reported
5 April 1883	30 June 1883	2	Observations: Reported
770 BCE ± 50 years	—	4	East flank (Las Pilas, Sintiope) · Isotopic: 14C (uncalibrated)

Data: Global Volcanism Program, Smithsonian Institution (#344120)