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What was erupting in the year...?

There were 58 confirmed eruptions at some point during 1978 from 56 different volcanoes; 25 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
Shikotsu Japan 1978 Dec 12 1979 May 11 1
Ioto Japan 1978 Dec 11 1978 Dec 11 1
Lopevi Vanuatu 1978 Nov 22 1979 Mar 16 ± 15 days 2
Ardoukoba Djibouti 1978 Nov 7 1978 Nov 14 1
Akutan United States 1978 Sep 25 ± 5 days 1978 Oct 16 ± 15 days 2
Poas Costa Rica 1978 Sep 22 1978 Dec 16 ± 15 days 1
Bezymianny Russia 1978 Sep 8 ± 30 days Unknown 2
Fernandina Ecuador 1978 Aug 8 1978 Aug 26 2
Bulusan Philippines 1978 Jul 29 1978 Aug 14 2
Chachadake [Tiatia] Japan - administered by Russia 1978 Jul 20 Unknown 2
Krakatau Indonesia 1978 Jul 10 1978 Nov 16 ± 15 days 1
Kanlaon Philippines 1978 Jun 27 1978 Sep 2 2
Kavachi Solomon Islands 1978 Jun 21 1978 Jul 22 ± 6 days 2
Lautaro Chile 1978 Jun 16 ± 15 days Unknown 1
Shikotsu Japan 1978 May 14 1978 May 17 1
Ulawun Papua New Guinea 1978 May 7 1978 May 14 3
Concepcion Nicaragua 1978 Mar 30 (in or before) 1978 May 16 (in or after) ± 15 days 2
Mayon Philippines 1978 Mar 7 1978 Sep 16 (?) ± 15 days 2
Okataina New Zealand 1978 Feb 23 1978 Feb 23 1
Karangetang Indonesia 1978 Feb 22 1978 Dec 18 1
Monowai New Zealand 1978 Feb 16 ± 15 days 1978 Jul 16 ± 15 days 0
Shishaldin United States 1978 Feb 8 1978 Feb 9 (?) 2
Westdahl United States 1978 Feb 4 1978 Feb 9 3
Raung Indonesia 1978 Jan 16 ± 15 days 1979 Dec 16 (in or after) ± 15 days 1
Didicas Philippines 1978 Jan 6 1978 Jan 9 2
Poas Costa Rica 1977 Dec 18 1978 Jun 15 2
Colima Mexico 1977 Dec 16 ± 15 days 1982 Jun 16 ± 15 days 1
Fuego Guatemala 1977 Sep 11 1979 Aug 8 2
Toya Japan 1977 Aug 7 1982 Mar 16 ± 15 days 3
Klyuchevskoy Russia 1977 Aug 2 1980 Mar 12 3
Ruapehu New Zealand 1977 Jul 16 1979 Jan 17 2
Asosan Japan 1977 Apr 11 1978 Aug 16 ± 15 days 2
Whakaari/White Island New Zealand 1976 Dec 18 1982 Jan 29 3
Telica Nicaragua 1976 Nov 3 1978 Jan 16 (in or after) ± 15 days 1
Axial Seamount Undersea Features 1976 Jan 1 ± 6 years 1982 (in or before) 0
Lokon-Empung Indonesia 1975 Nov 16 (in or before) ± 15 days 1980 Jul 2 ± 182 days 2
Marapi Indonesia 1975 Jan 16 ± 15 days 1979 Sep 11 2
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
Langila Papua New Guinea 1973 Feb 24 ± 4 days 2000 Oct 16 (in or after) ± 15 days 3
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
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
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.