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What was erupting in the year...?

There were 52 confirmed eruptions at some point during 1975 from 49 different volcanoes; 23 of those were new eruptions that started during the year. A stop date with "(continuing)" indicates that the eruption was considered to be ongoing as of the date indicated. Data is reported through the last data update (12 August 2022). Information about more recent eruptions can be found in the Smithsonian / USGS Weekly Volcanic Activity Report.

Volcano Country Eruption Start Date Eruption Stop Date Max VEI
Krafla Iceland 1975 Dec 20 1975 Dec 20 0
Colima Mexico 1975 Dec 11 (?) 1976 Jun 20 2
Kilauea United States 1975 Nov 29 1975 Nov 29 0
Lokon-Empung Indonesia 1975 Nov 16 (in or before) ± 15 days 1980 Jul 2 ± 182 days 2
Piton de la Fournaise France 1975 Nov 4 1976 Apr 6 1
Ruapehu New Zealand 1975 Oct 17 (in or before) 1975 Oct 17 (in or before) 1
Asosan Japan 1975 Oct 16 ± 15 days 1976 Jan 13 1
Izu-Torishima Japan 1975 Oct 2 Unknown 2
Shishaldin United States 1975 Sep 13 1975 Oct 26 ± 5 days 2
Pavlof United States 1975 Sep 13 1977 Mar 16 (in or after) ± 15 days 2
Minami-Hiyoshi Japan 1975 Aug 25 Unknown 0
Kavachi Solomon Islands 1975 Aug 16 ± 15 days Unknown 1
Mauna Loa United States 1975 Jul 5 1975 Jul 6 0
Southern Thule United Kingdom 1975 Jul 2 ± 11 years ± 182 days Unknown 1
Tolbachik Russia 1975 Jun 28 1976 Dec 10 4
Fuego Guatemala 1975 May 28 1975 Oct 21 1
Telica Nicaragua 1975 May 16 ± 15 days 1976 Mar 16 ± 15 days 0
Ruapehu New Zealand 1975 Apr 24 1975 Apr 27 2
Krakatau Indonesia 1975 Mar 27 1975 Oct 26 ± 5 days 2
Raung Indonesia 1975 Mar 16 ± 15 days 1975 May 16 ± 15 days 1
Lopevi Vanuatu 1975 Mar 6 ± 3 days 1975 Jun 23 2
Tongariro New Zealand 1975 Feb 12 1975 Feb 23 3
Marapi Indonesia 1975 Jan 16 ± 15 days 1979 Sep 11 2
Karkar Papua New Guinea 1974 Dec 30 (?) 1975 Jun 26 2
Fukutoku-Oka-no-Ba Japan 1974 Dec 24 1975 Nov 13 (?) 2
Poas Costa Rica 1974 Sep 11 1975 Feb 16 ± 15 days 2
Pavlof United States 1974 Sep 1 (in or before) 1975 Jan 13 3
Galeras Colombia 1974 Jul 2 ± 182 days 1983 Jul 2 (?) ± 182 days 1
Manam Papua New Guinea 1974 Mar 4 (?) 1999 Nov 9 (?) 3
Nevados de Chillan Chile 1973 Jul 16 ± 15 days 1986 Jul 2 ± 182 days 2
Ambrym Vanuatu 1973 Apr 15 ± 5 days 1976 Oct 14 3
Langila Papua New Guinea 1973 Feb 24 ± 4 days 2000 Oct 16 (in or after) ± 15 days 3
Asosan Japan 1973 Jan 16 ± 15 days 1975 Jun 16 ± 15 days 2
Erebus Antarctica 1972 Dec 16 (in or before) ± 15 days 2022 Aug 12 (continuing) 2
Merapi Indonesia 1972 Oct 6 1985 Mar 16 ± 15 days 2
Bagana Papua New Guinea 1972 Jul 2 ± 182 days 1995 Jul 2 (in or after) ± 182 days 2
Karangetang Indonesia 1972 Jan 16 ± 15 days 1976 Apr 5 3
Etna Italy 1971 Sep 19 1979 Mar 16 (?) ± 15 days 2
Karymsky Russia 1970 May 11 1982 Oct 11 3
Arenal Costa Rica 1968 Jul 29 2010 Dec 16 (?) ± 15 days 3
Semeru Indonesia 1967 Aug 31 2009 Mar 15 3
Erta Ale Ethiopia 1967 Jul 2 (in or before) ± 182 days 2022 Aug 12 (continuing) 0
Masaya Nicaragua 1965 Oct 10 (?) 1985 Apr 16 (?) ± 15 days 1
Pacaya Guatemala 1965 Jul 4 1989 Mar 10 3
Suwanosejima Japan 1956 Nov 16 ± 15 days 1984 May 16 ± 15 days 2
Aira Japan 1955 Oct 13 2016 Aug 22 3
Sangay Ecuador 1934 Aug 8 2011 Mar 2 3
Stromboli Italy 1934 Feb 2 2022 Aug 12 (continuing) 2
Dukono Indonesia 1933 Aug 13 2022 Aug 12 (continuing) 3
Nyiragongo DR Congo 1927 Mar 16 ± 15 days 1977 Jan 10 1
Santa Maria Guatemala 1922 Jun 22 2022 Aug 12 (continuing) 3
Yasur Vanuatu 1774 Jul 2 (in or before) ± 182 days 2022 Aug 12 (continuing) 3

List of Questions

Global Volcanism Program, 2013. Volcanoes of the World, v. 4.11.2 (02 Sep 2022). Venzke, E (ed.). Smithsonian Institution. Downloaded 26 Sep 2022. https://doi.org/10.5479/si.GVP.VOTW4-2013.