Ruapehu – stratovolcano, New Zealand

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
25 September 2007	25 September 2007	1	Observations: Reported
4 October 2006	4 October 2006	1	Observations: Reported
9 October 1997	18 October 1997	1	Observations: Reported
16 June 1996	1 September 1996	3	Observations: Reported
11 January 1995	9 November 1995	3	Observations: Reported
8 February 1992	6 March 1992	1	Observations: Reported
5 July 1991	14 July 1991	1	Observations: Reported
17 June 1990	8 September 1990	0	Observations: Reported
7 January 1990	26 January 1990	1	Observations: Reported
1 July 1989	20 September 1989	1	Observations: Reported
8 December 1988	5 March 1989	1	Observations: Reported
20 March 1988	25 May 1988	1	Observations: Reported
24 August 1987	30 August 1987	1	Observations: Reported
8 February 1986	9 February 1986	1	Observations: Reported
15 November 1985	15 November 1985	1	Observations: Reported
21 May 1985	9 June 1985	1	Observations: Reported
25 October 1984	16 December 1984	1	Observations: Reported
2 April 1984	—	1	Observations: Reported
25 October 1981	12 April 1982	1	Observations: Reported
18 October 1980	3 November 1980	1	Observations: Reported
15 January 1980	27 March 1980	1	Observations: Reported
30 June 1979	15 July 1979	1	Observations: Reported
16 July 1977	17 January 1979	2	Observations: Reported
12 September 1976	22 November 1976	1	Observations: Reported
6 March 1976	6 March 1976	1	Observations: Reported
17 October 1975	17 October 1975	1	Observations: Reported
24 April 1975	27 April 1975	2	Observations: Reported
31 October 1973	25 October 1974	1	Observations: Reported
22 October 1972	10 January 1973	1	Observations: Reported
3 April 1971	1 November 1971	2	Observations: Reported
16 September 1970	17 September 1970	1	Observations: Reported
22 June 1969	23 June 1969	2	Observations: Reported
6 April 1968	10 June 1968	2	Observations: Reported
22 July 1967	4 October 1967	1	Observations: Reported
4 April 1966	27 September 1966	1	Observations: Reported
21 May 1959	31 August 1959	1	Observations: Reported
18 November 1956	18 November 1956	1	Observations: Reported
16 July 1952	—	1	Observations: Reported
19 March 1951	—	1	Observations: Reported
26 June 1950	26 June 1950	1	Observations: Reported
1 May 1948	—	1	Observations: Reported
21 November 1946	31 May 1947	1	Observations: Reported
16 April 1946	16 June 1946	2	Observations: Reported
8 March 1945	16 December 1945	3	Observations: Reported
16 October 1944	—	2	Observations: Reported
10 August 1942	—	2	Observations: Reported
16 April 1940	—	2	Observations: Reported
9 May 1936	13 May 1936	2	Observations: Reported
16 December 1934	16 February 1935	2	Observations: Reported
11 August 1934	—	2	Observations: Reported
22 January 1925	—	2	Observations: Reported
16 October 1921	—	2	Observations: Reported
29 June 1918	—	2	Observations: Reported
15 March 1906	—	2	Observations: Reported
2 July 1903	—	2	Observations: Reported
10 March 1895	14 March 1895	2	Observations: Reported
1 May 1889	—	2	Observations: Reported
16 May 1861	—	2	Observations: Reported
1210 ± 150 years	—	3	Isotopic: 14C (uncalibrated)
5,550 BCE ± 2,500 years	—	?	NE flank (Whakapapa) · Correlation: Tephrochronology
7,590 BCE ± 100 years	—	?	North flank (Whakapapanui Gorge area) · Isotopic: 14C (uncalibrated)
c. 7,840 BCE	—	4	Upper north flank (Pinnacle Ridge) · Isotopic: 14C (uncalibrated)
c. 9,650 BCE	—	?	Correlation: Tephrochronology
c. 9,850 BCE	—	?	Isotopic: 14C (calibrated)

Data: Global Volcanism Program, Smithsonian Institution (#241100)