Sangay volcano (Ecuador) - Smithsonian / USGS Weekly Volcanic Activity Report for 17 May-23 May 2023 (Continuing Activity)

IG reported a high level of activity at Sangay during 17-23 May, though weather clouds sometimes prevented visual observations. Incandescent material at the crater and along the lava flow extending 1 km down the SE flank was visible nightly. On 17 May steam-and-ash emissions rose 500 m above the summit and drifted SW.
On 18 May an ash plume rose 1.7 km and drifted N and SW. At 2000 on 20 May ash plumes rose 2 km above the summit and drifted to the SW. Continuous ash emissions persisted during 21-22 May, drifting W and SW.
Ashfall during 20-22 May was reported in Chauzan, Guamote, Tixán, Palmira, Cebadas, and Alausí cantons in the Province of Chimborazo. Servicio Nacional de Gestión de Riesgos y Emergencias (SNGRE) maintained the Alert Level at Yellow (the second lowest level on a four-color scale).

Sources: Instituto Geofísico-Escuela Politécnica Nacional (IG), Servicio Nacional de Gestión de Riesgos y Emergencias (SNGRE)
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From: Global Volcanism Program, 2023. Report on Sangay. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 17 May-23 May 2023. Smithsonian Institution and US Geological Survey.