The elevated activity at the volcano continues.
Dome-block avalanches and pyroclastic flows continue to descend over the southern Mi-isi, southeastern Bonga and eastern Basud ravines, reaching length of at least 4000 m. Pyroclastic density currents usually form ash plumes – phoenix clouds – towering wall of cloud rising above pyroclastic torrent. The reason for this flow was presumably a destabilization of the lava dome resulting in the partial collapse.
Two main lava flows on the southern Mi-si and southeastern Bonga ravine remain active, currently 2.8 km and 1.4 km long.
Near-constant emissions of steam-laden plumes (so-called degassing) rose 800 meters above the summit and drifted west. Sulfur dioxide (SO2) emissions reached to a 943 tonnes on 9 July.
The short-term electronic tilt monitoring continues to detect the upper southeastern slopes inflated since February this year. However, the long-term ground deformation suggests the ongoing uplifting of the edifice, on the northwestern and southeastern slopes in particular, since 2020.
In order to mitigate the risk, people are forbidden to enter an area of 6 km distance from the summit crater due to impacts of rockfalls, pyroclastic falls and/or phreatic eruptions.
The alert level for the volcano remains at Level 3.
Source: Philippine Institute of Volcanology and Seismology volcano activity update 10 July 2023