SERNAGEOMIN and SEGEMAR reported increased activity at Copahue during 9-10 August, characterized as increased gas emissions, ash emissions, and crater incandescence. During the morning of 9 August gas-and-steam emissions increased and sulfur dioxide flux was as high as 7,200 tons per day. Crater incandescence was visible in nighttime webcam views and was intense during the early hours of 10 August. An ash plume rose 300 m above the crater rim and drifted N and NNW. Seismicity remained stable; data suggested no rising magma. The Alert Level remained at Green (the lowest level on a four-color scale).
Sources: Servicio Geolï¿½gico Minero Argentino (SEGEMAR),Servicio Nacional de Geologï¿½a y Minerï¿½a (SERNAGEOMIN)
Syndicated from Smithsonian / USGS Weekly Volcanic Activity Report