Sakurajima volcano (Kyushu, Japan): alert status dropped back to 3, vigorous eruptions continue

Explosion at Sakurajima volcano on 26 July (image: Sakurajima webcam)

The intense vulcanian activity at the volcano continues over the past few days.

Near-constant vigorous explosions take place from the Minamidake Crater at roughly regular numbers of 2-3 per day.

Dense and dark ash plumes rose to estimated heights in the range between 8,000 ft (2,400 m) and 13,000 ft (4,000 m).

Glowing bombs are being ejected up to 800-1100 meters away from the crater to shower the edifice with incandescent avalanches rolling down the slope.

The seismic station recorded 38 volcanic tremors on 30 July, 8 tremors yesterday and 1 today.
The amount of sulfur dioxide (SO2) emissions continue at elevated levels and reached to a 3200 tonnes on 29 July.

The Japan Meteorological Agency (JMA) lowered the volcanic alert level from the highest 5 (evacuation from the danger zone) back to 3 (restriction on proximity to the volcano).

The warning bulletin states that ballistic impacts of volcanic bombs and pyroclastic flows could affect an area of about 2 km distance from the main crater.

Source: Japan Meteorological Agency volcano activity update 2 August 2022