What was erupting in the year...?
There were 81 confirmed eruptions at some point during 2018 from 76 different volcanoes; 39 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 (30 December 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 |
|---|---|---|---|---|---|
| Tinakula | Solomon Islands | 2018 Dec 8 (on or before) | 2024 Dec 31 | Explosive / Effusive | 2 |
| Karangetang | Indonesia | 2018 Nov 25 | 2021 Jan 30 | Explosive / Effusive | 2 |
| Planchon-Peteroa | Chile | 2018 Nov 7 (on or before) | 2019 May 7 ± 1 days | Explosive / Effusive | 1 |
| Kuchinoerabujima | Japan | 2018 Oct 21 | 2019 Feb 3 | Explosive / Effusive | 3 |
| Gamalama | Indonesia | 2018 Oct 4 | 2018 Oct 6 | Explosive / Effusive | 1 |
| Soputan | Indonesia | 2018 Oct 2 | 2018 Dec 16 | Explosive / Effusive | 3 |
| Barren Island | India | 2018 Sep 25 | 2019 Apr 30 | Explosive / Effusive | 1 |
| Ulawun | Papua New Guinea | 2018 Sep 21 | 2018 Oct 12 (on or before) | Explosive / Effusive | 2 |
| Sarychev Peak | Russia | 2018 Sep 8 | 2018 Oct 15 | Explosive / Effusive | 2 |
| Semisopochnoi | United States | 2018 Sep 8 | 2018 Oct 31 | Explosive / Effusive | 1 |
| Veniaminof | United States | 2018 Sep 4 | 2018 Dec 23 | Explosive / Effusive | 1 |
| Alaid | Russia | 2018 Aug 21 | 2018 Aug 21 | Explosive / Effusive | 1 |
| Rincon de la Vieja | Costa Rica | 2018 Jul 28 | 2019 Jun 11 | Explosive / Effusive | 1 |
| Nishinoshima | Japan | 2018 Jul 12 | 2018 Jul 21 (on or before) | Explosive / Effusive | 1 |
| Karangetang | Indonesia | 2018 Jul 4 | 2018 Jul 4 | Explosive / Effusive | 1 |
| Fani Maore | France | 2018 Jul 3 | 2019 Aug 20 (?) | Submarine | 0 |
| Sierra Negra | Ecuador | 2018 Jun 26 | 2018 Aug 23 | Explosive / Effusive | 2 |
| Telica | Nicaragua | 2018 Jun 21 | 2018 Aug 15 | Explosive / Effusive | 1 |
| Krakatau | Indonesia | 2018 Jun 18 | 2020 Apr 17 | Explosive / Effusive | 3 |
| Fernandina | Ecuador | 2018 Jun 16 | 2018 Jun 21 | Explosive / Effusive | 1 |
| Manam | Papua New Guinea | 2018 Jun 10 | 2025 Dec 17 (continuing) | Explosive / Effusive | 4 |
| Great Sitkin | United States | 2018 Jun 10 | 2018 Aug 11 | Explosive / Effusive | 1 |
| Ulawun | Papua New Guinea | 2018 Jun 8 | 2018 Jun 8 | Explosive / Effusive | 1 |
| Sangay | Ecuador | 2018 Jun 8 (?) | 2018 Dec 17 | Explosive / Effusive | 2 |
| Poas | Costa Rica | 2018 May 25 | 2018 May 25 | Phreatic | – |
| Merapi | Indonesia | 2018 May 11 | 2020 Jun 21 | Explosive / Effusive | 3 |
| Marapi | Indonesia | 2018 Apr 27 | 2018 May 2 | Explosive / Effusive | 2 |
| San Cristobal | Nicaragua | 2018 Apr 22 | 2018 Apr 22 | Explosive / Effusive | 1 |
| Kerinci | Indonesia | 2018 Apr 21 | 2021 Jun 13 | Explosive / Effusive | 1 |
| Nyamulagira | DR Congo | 2018 Apr 14 | 2025 Dec 17 (continuing) | Explosive / Effusive | 0 |
| Piton de la Fournaise | France | 2018 Apr 3 | 2018 Nov 1 | Explosive / Effusive | 0 |
| Dieng Volcanic Complex | Indonesia | 2018 Apr 1 | 2018 Apr 1 | Explosive / Effusive | 1 |
| Kirishimayama | Japan | 2018 Mar 1 | 2018 Jun 22 ± 5 days | Explosive / Effusive | 3 |
| Sangay | Ecuador | 2018 Feb 25 | 2018 Feb 25 | Explosive / Effusive | 1 |
| Karangetang | Indonesia | 2018 Feb 2 | 2018 Feb 2 | Explosive / Effusive | 1 |
| Kusatsu-Shiranesan | Japan | 2018 Jan 23 | 2018 Jan 23 | Explosive / Effusive | 1 |
| San Miguel | El Salvador | 2018 Jan 14 | 2018 Mar 4 ± 4 days | Explosive / Effusive | 1 |
| Mayon | Philippines | 2018 Jan 13 | 2019 Jul 31 ± 30 days | Explosive / Effusive | 3 |
| Kadovar | Papua New Guinea | 2018 Jan 5 | 2023 May 14 | Explosive / Effusive | 2 |
| Agung | Indonesia | 2017 Nov 21 | 2019 Jun 13 | Explosive / Effusive | 3 |
| Ambae | Vanuatu | 2017 Sep 6 | 2018 Oct 30 (?) | Explosive / Effusive | 3 |
| Semeru | Indonesia | 2017 Jun 6 | 2018 Oct 31 | Explosive / Effusive | 4 |
| Copahue | Chile-Argentina | 2017 Jun 4 | 2018 Dec 7 | Explosive / Effusive | 1 |
| Karymsky | Russia | 2017 Jun 4 | 2019 Sep 24 | Explosive / Effusive | 3 |
| Rincon de la Vieja | Costa Rica | 2017 May 23 | 2018 Mar 15 ± 3 days | Explosive / Effusive | 1 |
| Ol Doinyo Lengai | Tanzania | 2017 Apr 9 | 2025 Dec 25 (continuing) | Explosive / Effusive | 0 |
| Aira | Japan | 2017 Mar 25 | 2025 Dec 17 (continuing) | Explosive / Effusive | 2 |
| Sangeang Api | Indonesia | 2017 Feb 25 | 2020 Jun 10 | Explosive / Effusive | 2 |
| Bezymianny | Russia | 2016 Dec 5 | 2021 Feb 1 ± 15 days | Explosive / Effusive | 3 |
| Sabancaya | Peru | 2016 Nov 6 | 2025 Apr 6 | Explosive / Effusive | 3 |
| Ebeko | Russia | 2016 Oct 20 | 2021 Nov 9 | Explosive / Effusive | 2 |
| Cleveland | United States | 2016 Apr 16 | 2019 Jan 20 ± 4 days | Explosive / Effusive | 2 |
| Nevados de Chillan | Chile | 2016 Jan 8 | 2022 Oct 17 | Explosive / Effusive | 2 |
| Langila | Papua New Guinea | 2015 Oct 22 (?) | 2025 Dec 28 (continuing) | Explosive / Effusive | 2 |
| Masaya | Nicaragua | 2015 Oct 3 | 2025 Dec 28 (continuing) | Lava Lake | 1 |
| Tofua | Tonga | 2015 Oct 2 | 2025 Dec 30 (continuing) | Lava Lake | 0 |
| Klyuchevskoy | Russia | 2015 Aug 28 | 2018 Jul 14 | Explosive / Effusive | 3 |
| Pacaya | Guatemala | 2015 Jun 7 ± 1 days | 2021 Aug 13 | Explosive / Effusive | 1 |
| Turrialba | Costa Rica | 2015 Mar 8 | 2019 Oct 28 | Explosive / Effusive | 3 |
| Villarrica | Chile | 2014 Dec 2 ± 7 days | 2025 Apr 19 | Lava Lake | 3 |
| Nevado del Ruiz | Colombia | 2014 Nov 18 | 2025 Dec 17 (continuing) | Explosive / Effusive | 2 |
| Saunders | United Kingdom | 2014 Nov 12 | 2025 Nov 20 (continuing) | Lava Lake | 1 |
| Sinabung | Indonesia | 2013 Sep 15 | 2018 Jun 22 | Explosive / Effusive | 4 |
| Etna | Italy | 2013 Sep 3 | 2022 Jun 17 | Explosive / Effusive | 3 |
| Heard | Australia | 2012 Sep 5 ± 4 days | 2025 Dec 26 (continuing) | Lava Lake | 0 |
| Reventador | Ecuador | 2008 Jul 27 | 2025 Dec 17 (continuing) | Explosive / Effusive | 2 |
| Ambrym | Vanuatu | 2008 May 23 | 2018 Dec 17 | Explosive / Effusive | 2 |
| Ibu | Indonesia | 2008 Apr 5 | 2025 Dec 17 (continuing) | Explosive / Effusive | 1 |
| Popocatepetl | Mexico | 2005 Jan 9 | 2025 Dec 17 (continuing) | Explosive / Effusive | 2 |
| Suwanosejima | Japan | 2004 Oct 23 | 2025 Dec 17 (continuing) | Explosive / Effusive | 2 |
| Nyiragongo | DR Congo | 2002 May 17 (?) | 2025 Sep 19 (continuing) | Lava Lake | 2 |
| Fuego | Guatemala | 2002 Jan 4 | 2025 Dec 17 (continuing) | Explosive / Effusive | 3 |
| Bagana | Papua New Guinea | 2000 Feb 28 (in or before) | 2025 Dec 17 (continuing) | Explosive / Effusive | 2 |
| Sheveluch | Russia | 1999 Aug 15 | 2025 Dec 17 (continuing) | Explosive / Effusive | 4 |
| Kilauea | United States | 1983 Jan 3 | 2018 Sep 5 | Explosive / Effusive | 3 |
| Erebus | Antarctica | 1972 Dec 16 (on or before) ± 15 days | 2025 Dec 29 (continuing) | Lava Lake | 2 |
| Erta Ale | Ethiopia | 1967 Jul 2 (in or before) ± 182 days | 2025 Dec 17 (continuing) | Explosive / Effusive | 0 |
| Stromboli | Italy | 1934 Feb 2 | 2025 Dec 17 (continuing) | Explosive / Effusive | 2 |
| Dukono | Indonesia | 1933 Aug 13 | 2025 Dec 17 (continuing) | Explosive / Effusive | 3 |
| Santa Maria | Guatemala | 1922 Jun 22 | 2025 Dec 17 (continuing) | Explosive / Effusive | 3 |
| Yasur | Vanuatu | 1270 ± 110 years | 2025 Dec 17 (continuing) | Explosive / Effusive | 3 |
List of Questions
Global Volcanism Program, 2025. [Database] Volcanoes of the World (v. 5.3.4; 30 Dec 2025). Distributed by Smithsonian Institution, compiled by Venzke, E. https://doi.org/10.5479/si.GVP.VOTW5-2025.5.3
