KVERT reported that a thermal anomaly was identified daily in satellite images over Sheveluch during 16-23 June.
Explosions on 17 June generated ash plumes that rose as high as 7 km (23,000 ft) a.s.l.
and drifted 300 km E.
Strong explosions the next day produced ash plumes that rose as high as 10 km (32,800 ft) a.s.l.
and drifted 1,500 km ESE.
The Aviation Color Code remained at Orange (the second highest level on a four-color scale).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)