New ash emissions from Sangay volcano reach 6 400 m (21 000 feet) a.s.l., Ecuador

Volcanic ash from Sangay volcano in Ecuador was observed at 6 400 m (21 000 feet) above sea level at 20:20 UTC on October 8, 2025. The Washington VAAC issued the advisory at 20:46 UTC on the same day.

The ash cloud was reported between the surface and flight level 210, corresponding to approximately 6 400 m (21 000 feet) above sea level. Ash was not detected by satellite due to weather clouds in the summit area, but a VONA (Volcano Observatory Notice for Aviation) confirmed ash emissions. No Aviation Color Code was stated in this advisory. The forecast showed no change to model winds at flight level over the next 6 hours; no further forecast heights were given for later times.

The Global Volcanism Program’s most recent weekly report is not available for Sangay in this feed. Therefore, recent eruptive behavior cannot be summarized from the current GVP summary data.

Sangay is a stratovolcano located in central Ecuador. It is one of the country’s most active volcanoes and poses hazards such as ashfall, lava flows, and pyroclastic flows. Settlements at risk include smaller towns on the flanks of the volcano, with larger cities such as Riobamba situated around 50 km (31 miles) to the west. Ashfall from eruptions can disrupt air travel and impact populated areas downwind, depending on wind conditions.