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What was erupting in the year...?

There were 80 confirmed eruptions at some point during 2004 from 70 different volcanoes; 49 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 (27 September 2018). 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
San Cristobal Nicaragua 2004 Dec 3 2004 Dec 7 1
Miyakejima Japan 2004 Nov 30 2004 Dec 9 1
Langila Papua New Guinea 2004 Nov 24 (?) 2004 Dec 25 (?) 2
Reventador Ecuador 2004 Nov 7 ± 3 days 2006 Mar 16 ± 15 days 2
Telica Nicaragua 2004 Nov 5 2005 Jan 29 1
Grimsvotn Iceland 2004 Nov 1 2004 Nov 4 3
Manam Papua New Guinea 2004 Oct 24 2009 Dec 12 (?) 4
Suwanosejima Japan 2004 Oct 23 2018 Sep 27 (continuing) 2
Soputan Indonesia 2004 Oct 18 2004 Dec 27 (?) 3
Rinjani Indonesia 2004 Oct 1 2004 Oct 5 (in or after) 2
St. Helens United States 2004 Oct 1 2008 Jan 27 ± 10 days 2
Lopevi Vanuatu 2004 Sep 16 ± 15 days 2004 Sep 16 ± 15 days 2
Klyuchevskoy Russia 2004 Sep 15 2004 Sep 15 1
Etna Italy 2004 Sep 7 2005 Mar 8 1
Asamayama Japan 2004 Sep 1 2004 Dec 9 2
Marapi Indonesia 2004 Aug 5 2004 Aug 5 (?) 2
Villarrica Chile 2004 Aug 5 (?) 2007 Dec 24 (?) 1
Nightingale Island United Kingdom 2004 Jul 29 2004 Jul 30 0
Chirinkotan Russia 2004 Jul 20 2004 Jul 20 2
Pacaya Guatemala 2004 Jul 19 (?) 2005 Sep 11 3
Galeras Colombia 2004 Jul 16 2005 Feb 7 (?) 3
Korovin United States 2004 Jul 4 (in or before) Unknown 1
Egon Indonesia 2004 Jul 3 2004 Sep 16 (?) 2
Marion Island South Africa 2004 Jun 24 2004 Jun 24 (?) 1
Kerinci Indonesia 2004 Jun 22 (?) 2004 Oct 24 (?) 2
Tengger Caldera Indonesia 2004 Jun 8 2004 Jun 24 ± 3 days 2
Mayon Philippines 2004 Jun 3 2004 Sep 12 (?) 1
Awu Indonesia 2004 Jun 2 (in or before) 2004 Aug 16 (?) ± 15 days 2
Popocatepetl Mexico 2004 May 26 2004 May 26 2
Ibu Indonesia 2004 May 16 (?) ± 15 days 2005 Feb 22 (?) 0
Nyamuragira DR Congo 2004 May 8 2004 May 28 ± 3 days 2
Piton de la Fournaise France 2004 May 2 2004 Oct 16 0
Anatahan United States 2004 Apr 12 (in or before) 2005 Sep 3 (?) 3
Ulawun Papua New Guinea 2004 Apr 12 2004 Apr 14 2
Karangetang Indonesia 2004 Apr 2 (?) 2005 Aug 5 (?) 2
Telica Nicaragua 2004 Mar 31 2004 Mar 31 1
Tofua Tonga 2004 Mar 19 2014 Oct 18 1
Kavachi Solomon Islands 2004 Mar 15 Unknown 1
Kikai Japan 2004 Mar 5 2004 Oct 16 ± 15 days 2
Soufriere Hills United Kingdom 2004 Mar 3 2004 May 2 3
Tokachidake Japan 2004 Feb 25 2004 Apr 19 1
Shishaldin United States 2004 Feb 17 2004 Jul 16 (in or after) ± 15 days 2
Veniaminof United States 2004 Feb 16 2004 Sep 5 ± 4 days 2
Epi Vanuatu 2004 Feb 16 2004 Feb 24 2
Etna Italy 2004 Feb 12 2004 Feb 14 1
Egon Indonesia 2004 Jan 29 2004 Feb 5 (?) 1
Langila Papua New Guinea 2004 Jan 20 (?) 2004 Jan 27 (?) 2
Asosan Japan 2004 Jan 14 2004 Jan 14 1
Bezymianny Russia 2004 Jan 14 2005 Feb 16 (?) ± 15 days 3
Manam Papua New Guinea 2003 Oct 26 ± 5 days 2004 Mar 28 1
NW Rota-1 United States 2003 Jul 2 (?) ± 182 days 2010 Mar 16 (in or after) ± 15 days 0
San Cristobal Nicaragua 2003 Jun 17 2004 Jun 13 1
Heard Australia 2003 Jun 9 2004 Jun 14 0
Piton de la Fournaise France 2003 May 30 2004 Jan 10 1
Villarrica Chile 2003 May 23 (?) 2004 Mar 25 (?) 1
Monowai New Zealand 2003 Apr 10 2004 Sep 16 ± 15 days 0
Klyuchevskoy Russia 2002 Nov 24 2004 Apr 8 2
Rabaul Papua New Guinea 2002 Oct 6 (?) 2004 Feb 17 2
Nyiragongo DR Congo 2002 May 17 (?) 2018 Sep 27 (continuing) 2
Fuego Guatemala 2002 Jan 4 2018 Sep 27 (continuing) 3
Karymsky Russia 2001 Nov 15 2016 Apr 1 3
Montagu Island United Kingdom 2001 Oct 1 ± 20 days 2007 Sep 20 1
Suwanosejima Japan 2000 Dec 19 2004 Jul 5 (?) 3
Bagana Papua New Guinea 2000 Feb 28 (in or before) 2018 Sep 21 (continuing) 2
Tungurahua Ecuador 1999 Oct 5 2009 Jul 8 ± 7 days 3
Sheveluch Russia 1999 Aug 15 2018 Sep 27 (continuing) 4
Colima Mexico 1997 Nov 22 2011 Jun 21 3
Ambrym Vanuatu 1996 Jun 16 (in or before) ± 15 days 2005 Aug 16 (in or after) ± 15 days 1
Ol Doinyo Lengai Tanzania 1994 Sep 18 2006 Jul 16 (?) ± 15 days 1
Kilauea United States 1983 Jan 3 2018 Sep 15 3
Erebus Antarctica 1972 Dec 16 (in or before) ± 15 days 2018 Sep 25 (continuing) 2
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 2018 Sep 27 (continuing) 0
Aira Japan 1955 Oct 13 2016 Aug 22 3
Sangay Ecuador 1934 Aug 8 2011 Mar 2 3
Stromboli Italy 1934 Feb 2 2018 Sep 27 (continuing) 2
Dukono Indonesia 1933 Aug 13 2018 Sep 27 (continuing) 3
Santa Maria Guatemala 1922 Jun 22 2018 Sep 27 (continuing) 3
Yasur Vanuatu 1774 Jul 2 (in or before) ± 182 days 2018 Sep 27 (continuing) 3

List of Questions

What volcanoes have had the longest eruptions?

How many active volcanoes are there?

Has volcanic activity been increasing?

What was erupting in the year...?

What is a volcano?

What is the world's highest volcano?

How do scientists forecast eruptions?

What volcanoes are the most noteworthy?

Why doesn't GVP post alert levels?

What Holocene volcanoes are in areas with a UNESCO classification?


Global Volcanism Program, 2013. Volcanoes of the World, v. 4.7.4. Venzke, E (ed.). Smithsonian Institution. Downloaded 18 Dec 2018. https://doi.org/10.5479/si.GVP.VOTW4-2013