Thermal image of Reventador volcano from 29 May shows both lava flows on the N and S flanks (image: IGEPN)
The effusive-explosive eruption of the volcano continues.
Near-frequent explosions of small to moderate size continue to erupt from the summit crater producing ash plumes that reached up to 15,000 ft (4,600 m) altitude. Volcanic ash is dispersed toward the W-NW.
Incandescence continues to be observed in the summit crater.
Two lava flows continue to be active on the north and south slopes of the volcano that caused glowing rockfalls to detach from it and roll down along the flanks.
Source: Instituto Geofísico volcano activity update 31 May 2021