The Weekly Volcanic Activity Report: May 4 – 10, 2022
New activity/unrest was reported for 2 volcanoes from May 4 to 10, 2022. During the same period, ongoing activity was reported for 20 volcanoes.
Cleveland volcano – Aviation Color Code and Volcano Alert Level raised to Yellow/Advisory, U.S.
Elevated surface temperatures and sulfur dioxide emissions have been detected at Cleveland volcano, Alaska, U.S. over the past couple of days, representing a departure from background activity.
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.
High levels of volcanic gas emissions, strong volcanic tremor at Ruapehu, New Zealand
Recent airborne gas measurements over Ruapehu volcano, New Zealand confirm continued high levels of volcanic gas emissions, along with strong volcanic tremor.
Satellite images show hot lava at Anak Krakatau, Indonesia
The activity at Indonesia’s Anak Krakatau volcano has calmed down after an intense eruption on April 24, 2022, ejected ash up to 6 km (20 000 feet) above sea level. The Alert Level remains at 3. The latest satellite image acquired by Sentinel-2 at 03:28 UTC on April 27 shows the thermal signature of the…
Explosive activity at Karymsky volcano, ash to 10 km (33 000 feet) a.s.l., Russia
Explosive activity at Karymsky volcano, Kamchatka, Russia intensified on April 28, 2022, with ash emissions rising up to 10 km (33 000 feet) above sea level.
