A swarm of earthquakes began beneath the south part of Kilauea caldera, Hawaii on August 24, 2021, with a particularly strong sequence that occurred at about 11:30 UTC, the USGS Hawaiian Volcano Observatory (HVO) reports. As a result, HVO has raised the volcano…
A short-lived period of minor ash emission occurred at White Island volcano, New Zealand at about 19:40 UTC on August 21, 2021, GeoNet's Duty Volcanologist Steven Sherburn reported in a bulletin released August 24. The Volcanic Alert Level remains at 2 and the…
The first measurement of volcanic sulfur dioxide or SO2 flux from the Taal Main Crater on August 19, 2021, totaled 15 347 tonnes/day. This marks a rising trend in volcanic SO2 degassing since August 13, with the short-term average from then until present measured at…
A new vent has opened close to the main crater at the Fagradalsfjall eruption site, Krýsuvík-Trölladyngja volcanic system in Iceland, which continues to erupt since March 19, 2021.1 According to the Institute of Earth Sciences photographs of the…
New activity/unrest was reported for 10 volcanoes from August 11 to 17, 2021. During the same period, ongoing activity was reported for 7 volcanoes. New activity/unrest: Atka, Andreanof Islands (USA) | Chirinkotan, Kuril Islands (Russia) | Fukutoku-Oka-no-Ba,…
A new island has been discovered some 50 km (31 miles) south of Iwo Jima, Ogasawara Islands, Japan just three days after a major submarine eruption at Fukutoku-Oka-no-Ba volcano. According to the Japan Meteorological Agency (JMA) the new island is approximately 1 km…
A major eruption started at the Japanese submarine Fukutoku-Oka-no-Ba volcano at around 21:20 UTC on August 12, 2021, and continued into August 13. According to the Tokyo VAAC, volcanic ash was rising up to 16.4 km (54 000 feet) above sea level at 23:50 UTC and…
Due to increased seismicity detected southwest of Korovin volcano, Atka volcanic complex, the Alaska Volcano Observatory (AVO) has raised the Aviation Color Code for the volcano to Yellow and Alert Level to Advisory on August 11, 2021. Numerous small earthquakes…
With approximately 50 paroxysmal eruptive episodes since February 16, 2021, Mount Etna has increased its height to a record 3 357 m (11 014 feet). Eruptive events that took place in 2021 have accumulated significant amounts of pyroclastic material and lava layers on…
At least 7 pyroclastic flows descended down the slopes of Merapi volcano, Indonesia starting at 21:58 UTC on August 7, 2021, with ash rising up to 3.6 km (12 000 feet) above sea level. No casualties were reported. The Aviation Color Code remained at Orange….
