KVERT reported that ash plumes from Karymsky were identified in satellite images during 1 and 4-5 March rising as high as 3.5 km (11,500 ft) a.s.l.
and drifting 90 km E.
A thermal anomaly was also visible on those same days.
The Aviation Color Code remained at Orange (the second highest level on a four-color scale).
Source: Kamchatkan Volcanic Eruption Response Team (KVERT)