• Lava flow eruption at Etna, tremor at high levels and rising, Italy

    An eruptive fracture opened on the northern flank of Etna’s Southeast Crater on the evening of May 12, 2022, after series of ash emissions. This led to the production of a small lava flow whose front reached the northern base of the crater. The flow is still active and producing ash- and steam-rich plumes as of early Saturday morning, May 14.

  • Large explosions at Stromboli volcano, Italy

    A series of strong explosions took place at Stromboli volcano, Italy on May 13, 2022. The first event was a moderately strong explosion at 14:42 UTC, followed by a dozen other events over the next three minutes of which the most energetic was at 14:43 UTC.

  • Heightened volcanic unrest continues at Ruapehu with high volcanic gas output, strong tremor and steam plumes

    High levels of volcanic gas emissions and strong volcanic tremor continue at New Zealand’s Ruapehu volcano. The Crater Lake (Te Wai ā-moe) temperature has risen to 41 °C (105.8 °F) and steam plumes can be observed in cold, still atmospheric conditions. The volcano is still at a heightened level of unrest. The Volcanic Alert Level remains at 2, with greater chances of eruption over the next four weeks than at Volcanic Alert Level 1.

  • Hunga Tonga-Hunga Ha’apai eruption caused a major space weather event

    When the Hunga Tonga-Hunga Ha‘apai volcano in Tonga erupted on January 15, 2022, it sent atmospheric shock waves, sonic booms, and tsunami waves around the world. Now, new research published in Geophysical Research Letters shows the effects of the eruption also reached space, causing a major space weather event.

  • The Weekly Volcanic Activity Report: April 27 – May 3, 2022

    New activity/unrest was reported for 5 volcanoes from April 27 to May 3, 2022. During the same period, ongoing activity was reported 16 volcanoes. New activity/unrest: Batu Tara, Komba Island | Gaua, Banks Islands (Vanuatu) | Karymsky, Eastern Kamchatka (Russia) | Krakatau, Sunda Strait | Ruapehu, North Island (New Zealand). Ongoing activity: Aira, Kyushu (Japan)…

  • Significant ash plume after strong explosion at Gaua volcano, Vanuatu

    A strong heavy sound of an explosion was heard by people living near Gaua volcano, Vanuatu on May 3, 2022, followed by a significant thick ash plume. The volcanic Alert Level remains at Level 2 – high level of the major unrest state. The last known eruption of this volcano took place in 2011 (VEI 1).

  • Steam plume visible at Ruapehu volcano, New Zealand

    A steam plume was seen above Ruapehu’s Crater Lake at around 09:45 LT on May 3, 2022 (21:45 UTC on May 2). No seismic or acoustic activity accompanied the plume appearance, indicating the steam plume was not generated by strong activity in the lake.