What was erupting in the year...?
There were 83 confirmed eruptions at some point during 2005 from 75 different volcanoes; 46 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 (19 September 2025). Information about more recent eruptions can be found in the Smithsonian / USGS Weekly Volcanic Activity Report.
| Volcano | Country | Eruption Start Date | Eruption Stop Date | Eruption Type | Max VEI |
|---|---|---|---|---|---|
| Soputan | Indonesia | 2005 Dec 26 | 2006 Jan 24 (?) | Explosive / Effusive | 1 |
| Ambang | Indonesia | 2005 Dec 22 | Unknown | 1 | |
| Etna | Italy | 2005 Dec 16 | 2005 Dec 22 | Explosive / Effusive | 1 |
| Augustine | United States | 2005 Dec 9 (?) | 2006 Apr 27 (?) | Explosive / Effusive | 3 |
| Bezymianny | Russia | 2005 Nov 29 (?) | 2005 Dec 1 (on or after) | Explosive / Effusive | 2 |
| Ambae | Vanuatu | 2005 Nov 27 | 2006 Feb 16 ± 15 days | Explosive / Effusive | 2 |
| Galeras | Colombia | 2005 Nov 24 | 2006 Jul 12 | Explosive / Effusive | 2 |
| Karthala | Union of the Comoros | 2005 Nov 24 | 2005 Dec 8 | Explosive / Effusive | 3 |
| San Cristobal | Nicaragua | 2005 Nov 13 | 2006 May 27 | Explosive / Effusive | 2 |
| Lopevi | Vanuatu | 2005 Oct 27 (?) | 2006 Aug 1 (?) | Explosive / Effusive | 2 |
| Sierra Negra | Ecuador | 2005 Oct 22 | 2005 Oct 30 | Explosive / Effusive | 3 |
| Krummel-Garbuna-Welcker | Papua New Guinea | 2005 Oct 16 | 2005 Nov 17 (on or after) | Explosive / Effusive | 2 |
| Piton de la Fournaise | France | 2005 Oct 4 | 2006 Jan 18 | Explosive / Effusive | 0 |
| Dabbahu | Ethiopia | 2005 Sep 26 | 2005 Sep 29 | Explosive / Effusive | 3 |
| Veniaminof | United States | 2005 Sep 7 | 2005 Nov 4 (?) | Explosive / Effusive | 1 |
| Mayon | Philippines | 2005 Aug 17 (on or before) | Unknown | 0 | |
| Northern EPR at 9.8°N | Undersea Features | 2005 Aug 16 (?) ± 15 days | 2006 Jan 16 (?) ± 15 days | Submarine | 0 |
| Concepcion | Nicaragua | 2005 Jul 28 | 2005 Nov 10 | Explosive / Effusive | 2 |
| McDonald Islands | Australia | 2005 Jul 12 (on or before) | Unknown | 0 | |
| Fukutoku-Oka-no-Ba | Japan | 2005 Jul 2 | 2005 Jul 21 (?) | Explosive / Effusive | 1 |
| Santa Ana | El Salvador | 2005 Jun 16 | 2005 Oct 1 (?) | Explosive / Effusive | 3 |
| Barren Island | India | 2005 May 26 | 2007 Dec 23 (?) | Explosive / Effusive | 2 |
| Fernandina | Ecuador | 2005 May 13 | 2005 May 29 (?) | Explosive / Effusive | 2 |
| Lascar | Chile | 2005 May 4 | 2005 May 4 | Explosive / Effusive | 3 |
| Langila | Papua New Guinea | 2005 Apr 19 (?) | 2006 Mar 31 (?) | Explosive / Effusive | 2 |
| Soputan | Indonesia | 2005 Apr 19 | 2005 Jul 18 (?) | Explosive / Effusive | 2 |
| Karthala | Union of the Comoros | 2005 Apr 16 | 2005 Apr 18 | Explosive / Effusive | 2 |
| Soufriere Hills | United Kingdom | 2005 Apr 15 | 2013 Feb 5 | Explosive / Effusive | 3 |
| Asosan | Japan | 2005 Apr 14 | 2005 Aug 16 ± 15 days | Explosive / Effusive | 1 |
| Talang | Indonesia | 2005 Apr 12 (?) | 2005 Jul 18 (?) | Explosive / Effusive | 2 |
| Miyakejima | Japan | 2005 Apr 12 | 2005 May 18 | Explosive / Effusive | 1 |
| Ulawun | Papua New Guinea | 2005 Mar 27 (?) | 2005 Aug 9 (?) | Explosive / Effusive | 2 |
| Cleveland | United States | 2005 Mar 13 (?) | 2005 Nov 27 ± 1 days | Explosive / Effusive | 2 |
| Chikurachki | Russia | 2005 Mar 12 | 2005 Apr 7 | Explosive / Effusive | 1 |
| Masaya | Nicaragua | 2005 Mar 4 (?) | 2005 Mar 30 (?) | Explosive / Effusive | 1 |
| Monowai | New Zealand | 2005 Mar 2 | 2006 Jun 27 | Explosive / Effusive | 0 |
| Atka Volcanic Complex | United States | 2005 Feb 23 | 2005 May 5 ± 4 days | Explosive / Effusive | 1 |
| Piton de la Fournaise | France | 2005 Feb 17 | 2005 Feb 26 | Explosive / Effusive | 0 |
| Egon | Indonesia | 2005 Feb 6 | 2005 Feb 27 | Explosive / Effusive | 1 |
| Lopevi | Vanuatu | 2005 Jan 30 | 2005 Mar 31 (?) | Explosive / Effusive | 2 |
| Ebeko | Russia | 2005 Jan 29 | 2005 Feb 16 | Explosive / Effusive | 2 |
| Kanlaon | Philippines | 2005 Jan 25 | 2005 May 25 | Explosive / Effusive | 2 |
| Rabaul | Papua New Guinea | 2005 Jan 25 | 2006 Feb 17 | Explosive / Effusive | 2 |
| Klyuchevskoy | Russia | 2005 Jan 20 (on or before) | 2005 Apr 7 | Explosive / Effusive | 2 |
| Popocatepetl | Mexico | 2005 Jan 9 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Veniaminof | United States | 2005 Jan 4 | 2005 Feb 14 ± 3 days | Explosive / Effusive | 2 |
| Reventador | Ecuador | 2004 Nov 7 ± 3 days | 2006 Mar 16 ± 15 days | Explosive / Effusive | 2 |
| Telica | Nicaragua | 2004 Nov 5 | 2005 Jan 29 | Explosive / Effusive | 1 |
| Manam | Papua New Guinea | 2004 Oct 24 | 2009 Dec 12 (?) | Explosive / Effusive | 4 |
| Suwanosejima | Japan | 2004 Oct 23 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| St. Helens | United States | 2004 Oct 1 | 2008 Jan 27 ± 10 days | Explosive / Effusive | 2 |
| Etna | Italy | 2004 Sep 7 | 2005 Mar 8 | Explosive / Effusive | 1 |
| Villarrica | Chile | 2004 Aug 5 (?) | 2007 Dec 24 (?) | Explosive / Effusive | 1 |
| Pacaya | Guatemala | 2004 Jul 19 (?) | 2005 Sep 11 | Explosive / Effusive | 3 |
| Galeras | Colombia | 2004 Jul 16 | 2005 Feb 7 (?) | Explosive / Effusive | 3 |
| Ibu | Indonesia | 2004 May 16 (?) ± 15 days | 2005 Feb 22 (?) | Explosive / Effusive | 0 |
| Anatahan | United States | 2004 Apr 12 (on or before) | 2005 Sep 3 (?) | Explosive / Effusive | 3 |
| Karangetang | Indonesia | 2004 Apr 2 (?) | 2005 Aug 5 (?) | Explosive / Effusive | 2 |
| Tofua | Tonga | 2004 Mar 19 | 2014 Oct 18 | Explosive / Effusive | 1 |
| Bezymianny | Russia | 2004 Jan 14 | 2005 Feb 16 (?) ± 15 days | Explosive / Effusive | 3 |
| NW Rota-1 | United States | 2003 Jul 2 (?) ± 182 days | 2010 Mar 16 (on or after) ± 15 days | Explosive / Effusive | 0 |
| Nyiragongo | DR Congo | 2002 May 17 (?) | 2025 Sep 19 (continuing) | Lava Lake | 2 |
| Fuego | Guatemala | 2002 Jan 4 | 2025 Sep 19 (continuing) | Explosive / Effusive | 3 |
| Karymsky | Russia | 2001 Nov 15 | 2016 Apr 1 | Explosive / Effusive | 3 |
| Montagu Island | United Kingdom | 2001 Oct 1 ± 20 days | 2007 Sep 20 | Explosive / Effusive | 1 |
| Saunders | United Kingdom | 2000 May 13 | 2013 Nov 16 | Explosive / Effusive | 0 |
| Bagana | Papua New Guinea | 2000 Feb 28 (in or before) | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Tungurahua | Ecuador | 1999 Oct 5 | 2009 Jul 8 ± 7 days | Explosive / Effusive | 3 |
| Sheveluch | Russia | 1999 Aug 15 | 2025 Sep 19 (continuing) | Explosive / Effusive | 4 |
| Colima | Mexico | 1997 Nov 22 | 2011 Jun 21 | Explosive / Effusive | 3 |
| Ambrym | Vanuatu | 1996 Jun 16 (on or before) ± 15 days | 2005 Aug 16 (on or after) ± 15 days | Explosive / Effusive | 1 |
| Ol Doinyo Lengai | Tanzania | 1994 Sep 18 | 2006 Jul 16 (?) ± 15 days | Explosive / Effusive | 1 |
| Kilauea | United States | 1983 Jan 3 | 2018 Sep 5 | Explosive / Effusive | 3 |
| Erebus | Antarctica | 1972 Dec 16 (on or before) ± 15 days | 2025 Sep 19 (continuing) | Lava Lake | 2 |
| Arenal | Costa Rica | 1968 Jul 29 | 2010 Dec 16 (?) ± 15 days | Explosive / Effusive | 3 |
| Semeru | Indonesia | 1967 Aug 31 | 2009 Mar 15 | Explosive / Effusive | 3 |
| Erta Ale | Ethiopia | 1967 Jul 2 (in or before) ± 182 days | 2025 Sep 19 (continuing) | Explosive / Effusive | 0 |
| Aira | Japan | 1955 Oct 13 | 2016 Aug 22 | Explosive / Effusive | 3 |
| Sangay | Ecuador | 1934 Aug 8 | 2011 Mar 2 | Explosive / Effusive | 3 |
| Stromboli | Italy | 1934 Feb 2 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Dukono | Indonesia | 1933 Aug 13 | 2025 Sep 19 (continuing) | Explosive / Effusive | 3 |
| Santa Maria | Guatemala | 1922 Jun 22 | 2025 Sep 19 (continuing) | Explosive / Effusive | 3 |
| Yasur | Vanuatu | 1270 ± 110 years | 2025 Sep 19 (continuing) | Explosive / Effusive | 3 |
List of Questions
Global Volcanism Program, 2025. [Database] Volcanoes of the World (v. 5.3.3; 26 Nov 2025). Distributed by Smithsonian Institution, compiled by Venzke, E. https://doi.org/10.5479/si.GVP.VOTW5-2025.5.3
