What was erupting in the year...?
There were 75 confirmed eruptions at some point during 2009 from 68 different volcanoes; 31 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 (2 March 2024). 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 |
|---|---|---|---|---|
| Bezymianny | Russia | 2009 Dec 17 | 2010 Feb 16 (?) | 3 |
| Concepcion | Nicaragua | 2009 Dec 11 | 2011 Mar 12 | 1 |
| Villarrica | Chile | 2009 Nov 22 | 2012 Apr 20 | 1 |
| Poas | Costa Rica | 2009 Nov 16 ± 15 days | 2014 Oct 13 | 1 |
| Piton de la Fournaise | France | 2009 Nov 5 | 2010 Jan 12 | 1 |
| Cleveland | United States | 2009 Oct 2 | 2009 Dec 12 (?) | 2 |
| Dieng Volcanic Complex | Indonesia | 2009 Sep 27 | 2009 Sep 27 | 1 |
| Gaua | Vanuatu | 2009 Sep 27 | 2010 Jun 19 | 2 |
| Langila | Papua New Guinea | 2009 Sep 16 (in or before) ± 15 days | 2010 Feb 16 (?) ± 15 days | 2 |
| Mayon | Philippines | 2009 Sep 15 | 2010 Jan 1 (?) | 2 |
| San Cristobal | Nicaragua | 2009 Sep 6 | 2009 Dec 26 (?) | 2 |
| Klyuchevskoy | Russia | 2009 Aug 1 (?) | 2010 Dec 20 (?) | 2 |
| Manda Hararo | Ethiopia | 2009 Jun 28 | 2009 Jul 1 (?) | 2 |
| Cleveland | United States | 2009 Jun 25 | 2009 Jun 25 | 2 |
| Sarychev Peak | Russia | 2009 Jun 11 | 2009 Jul 16 (?) ± 15 days | 4 |
| Monowai | New Zealand | 2009 May 4 ± 3 days | 2009 Dec 16 ± 4 days | 0 |
| Rinjani | Indonesia | 2009 May 2 | 2010 May 23 | 2 |
| Slamet | Indonesia | 2009 Apr 21 | 2009 Jun 22 (?) | 1 |
| Fernandina | Ecuador | 2009 Apr 10 | 2009 Apr 28 (?) | 2 |
| Kerinci | Indonesia | 2009 Apr 1 (?) | 2009 Jun 19 (?) | 1 |
| Miyakejima | Japan | 2009 Apr 1 | 2009 Apr 1 | 1 |
| Krakatau | Indonesia | 2009 Mar 25 (?) | 2009 Sep 16 (?) ± 15 days | 2 |
| Hunga Tonga-Hunga Ha'apai | Tonga | 2009 Mar 17 (?) | 2009 Mar 22 ± 1 days | 2 |
| Redoubt | United States | 2009 Mar 15 | 2009 Jul 1 ± 30 days | 3 |
| Ebeko | Russia | 2009 Feb 11 | 2009 Jul 13 (?) | 1 |
| Villarrica | Chile | 2009 Jan 29 | 2009 Mar 24 (?) | 1 |
| Asamayama | Japan | 2009 Jan 21 | 2009 May 2 | 2 |
| Dieng Volcanic Complex | Indonesia | 2009 Jan 15 | 2009 Jan 15 | 1 |
| Poas | Costa Rica | 2009 Jan 12 | 2009 Mar 21 (?) | 1 |
| Cleveland | United States | 2009 Jan 2 | 2009 Jan 21 | 2 |
| Dempo | Indonesia | 2009 Jan 1 | 2009 Jan 1 | 1 |
| Koryaksky | Russia | 2008 Dec 23 (?) | 2009 Aug 27 | 2 |
| Karangetang | Indonesia | 2008 Nov 29 (?) | 2010 Mar 24 (?) | 2 |
| West Mata | Tonga | 2008 Nov 16 (in or before) ± 15 days | 2009 May 16 (in or after) ± 15 days | 0 |
| Nevado del Huila | Colombia | 2008 Oct 26 (?) | 2012 Jan 14 (?) | 3 |
| Galeras | Colombia | 2008 Oct 21 (?) | 2010 Jan 2 (?) | 3 |
| Klyuchevskoy | Russia | 2008 Oct 8 | 2009 Apr 16 (?) | 1 |
| Piton de la Fournaise | France | 2008 Sep 12 | 2009 Feb 4 | 1 |
| Reventador | Ecuador | 2008 Jul 27 | 2024 Mar 1 (continuing) | 2 |
| Ambrym | Vanuatu | 2008 May 23 | 2018 Dec 17 | 2 |
| Barren Island | India | 2008 May 13 | 2010 Apr 19 (?) | 2 |
| Chaiten | Chile | 2008 May 2 | 2011 May 31 ± 3 days | 4 |
| Ibu | Indonesia | 2008 Apr 5 | 2024 Mar 1 (continuing) | 1 |
| Llaima | Chile | 2008 Jan 1 | 2009 Jun 12 ± 4 days | 3 |
| Ol Doinyo Lengai | Tanzania | 2007 Jun 16 ± 15 days | 2010 Oct 9 (?) ± 1 days | 3 |
| Etna | Italy | 2007 Mar 19 | 2009 Jul 4 | 2 |
| Batu Tara | Indonesia | 2007 Jan 17 (?) | 2015 Nov 26 | 2 |
| Rabaul | Papua New Guinea | 2006 Aug 11 | 2010 Jan 31 | 4 |
| Ubinas | Peru | 2006 Mar 25 (?) | 2009 Jul 4 (?) | 2 |
| Pacaya | Guatemala | 2006 Mar 9 | 2010 Oct 26 | 3 |
| Soufriere Hills | United Kingdom | 2005 Apr 15 | 2013 Feb 5 | 3 |
| Popocatepetl | Mexico | 2005 Jan 9 | 2024 Mar 1 (continuing) | 2 |
| Manam | Papua New Guinea | 2004 Oct 24 | 2009 Dec 12 (?) | 4 |
| Suwanosejima | Japan | 2004 Oct 23 | 2024 Mar 1 (continuing) | 2 |
| Tofua | Tonga | 2004 Mar 19 | 2014 Oct 18 | 1 |
| NW Rota-1 | United States | 2003 Jul 2 (?) ± 182 days | 2010 Mar 16 (in or after) ± 15 days | 0 |
| Nyiragongo | DR Congo | 2002 May 17 (?) | 2023 Oct 24 | 2 |
| Fuego | Guatemala | 2002 Jan 4 | 2024 Mar 1 (continuing) | 3 |
| Karymsky | Russia | 2001 Nov 15 | 2016 Apr 1 | 3 |
| Saunders | United Kingdom | 2000 May 13 | 2013 Nov 16 | 0 |
| Bagana | Papua New Guinea | 2000 Feb 28 (in or before) | 2023 Dec 14 (continuing) | 2 |
| Tungurahua | Ecuador | 1999 Oct 5 | 2009 Jul 8 ± 7 days | 3 |
| Sheveluch | Russia | 1999 Aug 15 | 2024 Mar 1 (continuing) | 4 |
| Colima | Mexico | 1997 Nov 22 | 2011 Jun 21 | 3 |
| Kilauea | United States | 1983 Jan 3 | 2018 Sep 5 | 3 |
| Erebus | Antarctica | 1972 Dec 16 (in or before) ± 15 days | 2024 Mar 1 (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 | 2024 Mar 1 (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 | 2024 Mar 1 (continuing) | 2 |
| Dukono | Indonesia | 1933 Aug 13 | 2024 Mar 1 (continuing) | 3 |
| Santa Maria | Guatemala | 1922 Jun 22 | 2024 Mar 1 (continuing) | 3 |
| Yasur | Vanuatu | 1270 ± 110 years | 2024 Mar 1 (continuing) | 3 |
List of Questions
Global Volcanism Program, 2024. [Database] Volcanoes of the World (v. 5.1.6; 2 Mar 2024). Distributed by Smithsonian Institution, compiled by Venzke, E. https://doi.org/10.5479/si.GVP.VOTW5-2023.5.1
