Overview
- Authorities confirmed an ash cloud from the border volcano reached Bardas Blancas and nearby rural areas, with visibility of ash also reported around Malargüe.
- A pulse on November 6 produced a plume about 1,100 meters above the crater that drifted south–southeast, and the VAAC corroborated the emissions by satellite.
- The complex remains on a yellow technical alert for elevated seismic and fumarolic activity, and specialists say recent ash pulses have become more frequent.
- OAVV specialist Pablo Forte said the activity is consistent with the 2018–2019 cycle and a large eruption is not expected, though intermittent ash could persist depending on winds.
- Provincial services issued health guidance to limit exposure and deployed patrols and active guards in highland localities, while Malargüe keeps open lines with rural sites for rapid assistance.