IG reported that the eruption at Sangay that began on 8 August ended on 7 December after about four months of activity.
The eruption was characterized by the extrusion of lava flows, and ash emissions that rose between 0.5-1.4 km (and occasionally higher than 2 km) and mainly drifted W and NW.
Minor amounts of ash fell in Guayaquil on 18 September.
Lava flows traveled 1-2 km down the ESE flank, and both block avalanches and possible small pyroclastic flows from the flow fronts traveled additionally as far as 7 km.
Source: Instituto Geofísico-Escuela Politécnica Nacional (IG)