What was erupting in the year...?
There were 63 confirmed eruptions at some point during 2025 from 58 different volcanoes; 21 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 |
|---|---|---|---|---|---|
| Sabancaya | Peru | 2025 Sep 13 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Ioto | Japan | 2025 Sep 1 | 2025 Sep 2 | Submarine | 1 |
| Whakaari/White Island | New Zealand | 2025 Aug 28 | 2025 Aug 28 | Explosive / Effusive | – |
| Dempo | Indonesia | 2025 Aug 7 | 2025 Aug 29 | Explosive / Effusive | – |
| Krasheninnikov | Russia | 2025 Aug 2 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Barren Island | India | 2025 Jul 30 | 2025 Jul 31 | Explosive / Effusive | – |
| Reykjanes | Iceland | 2025 Jul 16 | 2025 Aug 5 | Explosive / Effusive | – |
| Telica | Nicaragua | 2025 Jul 14 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Kirishimayama | Japan | 2025 Jun 22 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Karymsky | Russia | 2025 Apr 30 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Northern EPR at 9.8°N | Undersea Features | 2025 Apr 28 | 2025 Apr 29 | Submarine | 0 |
| Bulusan | Philippines | 2025 Apr 28 | 2025 Apr 29 | Phreatic | – |
| Klyuchevskoy | Russia | 2025 Apr 8 | 2025 Aug 16 | Explosive / Effusive | – |
| Reykjanes | Iceland | 2025 Apr 1 | 2025 Apr 1 | Explosive / Effusive | – |
| Ulawun | Papua New Guinea | 2025 Mar 27 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Raung | Indonesia | 2025 Mar 13 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Atka Volcanic Complex | United States | 2025 Feb 20 | 2025 May 2 | Explosive / Effusive | 1 |
| Purace | Colombia | 2025 Jan 19 | 2025 Feb 21 | Explosive / Effusive | 2 |
| Lewotolok | Indonesia | 2025 Jan 16 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Telica | Nicaragua | 2025 Jan 11 | 2025 Feb 25 | Explosive / Effusive | 1 |
| Poas | Costa Rica | 2025 Jan 5 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Bezymianny | Russia | 2024 Dec 24 | 2025 Sep 19 (continuing) | Explosive / Effusive | – |
| Kilauea | United States | 2024 Dec 23 | 2025 Sep 19 (continuing) | Explosive / Effusive | 0 |
| Dieng Volcanic Complex | Indonesia | 2024 Dec 18 | 2025 Jan 6 | Phreatic | 1 |
| Home Reef | Tonga | 2024 Dec 4 | 2025 Jun 29 ± 1 days | Explosive / Effusive | 2 |
| Dempo | Indonesia | 2024 Nov 23 | 2025 Feb 2 | Explosive / Effusive | 1 |
| Kanlaon | Philippines | 2024 Oct 19 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Ahyi | United States | 2024 Aug 5 | 2025 May 28 | Submarine | 0 |
| Whakaari/White Island | New Zealand | 2024 May 24 | 2025 May 13 | Explosive / Effusive | 1 |
| Taal | Philippines | 2024 Apr 12 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Lewotobi | Indonesia | 2023 Dec 23 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Marapi | Indonesia | 2023 Dec 3 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Etna | Italy | 2022 Nov 27 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Great Sitkin | United States | 2021 May 25 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Merapi | Indonesia | 2020 Dec 31 | 2025 Sep 19 (continuing) | Explosive / Effusive | 1 |
| Sangay | Ecuador | 2019 Mar 26 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Semeru | Indonesia | 2019 Feb 24 | 2025 Sep 19 (continuing) | Explosive / Effusive | 4 |
| Manam | Papua New Guinea | 2018 Jun 10 | 2025 Sep 19 (continuing) | Explosive / Effusive | 4 |
| Nyamulagira | DR Congo | 2018 Apr 14 | 2025 Sep 19 (continuing) | Explosive / Effusive | 0 |
| Ol Doinyo Lengai | Tanzania | 2017 Apr 9 | 2025 Sep 19 (continuing) | Explosive / Effusive | 0 |
| Aira | Japan | 2017 Mar 25 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Sabancaya | Peru | 2016 Nov 6 | 2025 Apr 6 | Explosive / Effusive | 3 |
| Langila | Papua New Guinea | 2015 Oct 22 (?) | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Masaya | Nicaragua | 2015 Oct 3 | 2025 Sep 19 (continuing) | Lava Lake | 1 |
| Tofua | Tonga | 2015 Oct 2 | 2025 Sep 19 (continuing) | Lava Lake | 0 |
| Villarrica | Chile | 2014 Dec 2 ± 7 days | 2025 Apr 19 | Lava Lake | 3 |
| Nevado del Ruiz | Colombia | 2014 Nov 18 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Saunders | United Kingdom | 2014 Nov 12 | 2025 Aug 22 (continuing) | Lava Lake | 1 |
| Heard | Australia | 2012 Sep 5 ± 4 days | 2025 Sep 19 (continuing) | Lava Lake | 0 |
| Reventador | Ecuador | 2008 Jul 27 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Ibu | Indonesia | 2008 Apr 5 | 2025 Sep 19 (continuing) | Explosive / Effusive | 1 |
| Popocatepetl | Mexico | 2005 Jan 9 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Suwanosejima | Japan | 2004 Oct 23 | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| 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 |
| Bagana | Papua New Guinea | 2000 Feb 28 (in or before) | 2025 Sep 19 (continuing) | Explosive / Effusive | 2 |
| Sheveluch | Russia | 1999 Aug 15 | 2025 Sep 19 (continuing) | Explosive / Effusive | 4 |
| Erebus | Antarctica | 1972 Dec 16 (on or before) ± 15 days | 2025 Sep 19 (continuing) | Lava Lake | 2 |
| Erta Ale | Ethiopia | 1967 Jul 2 (in or before) ± 182 days | 2025 Sep 19 (continuing) | Explosive / Effusive | 0 |
| 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. 5.3.2; 30 Sep 2025). Distributed by Smithsonian Institution, compiled by Venzke, E. https://doi.org/10.5479/si.GVP.VOTW5-2025.5.3
