Volcan Copahue
El volcán Copahue es un estratovolcán activo en erupción, ubicado en la Región del Biobío, Provincia de Biobío,Comuna Alto Biobío Chile. En este momento se encuentra en alerta técnica amarilla por el Servicio Nacional de Geología y Minería de Chile y la Oficina Nacional de Emergencia del Ministerio del Interior.
Copahue vulcano, a stratovolcano in the Andes on the border of Bío Bío Region, Chile and Neuquén Province, Argentina. There are nine volcanic craters along a 2 km (1.2 mi) line, the easternmost of which is historically the most active, and contains a 300 m (1000 ft) wide crater lake with a pH ranging between 0.18 and 0.30. Eruptions from this crater lake have ejected pyroclastic rocks and chilled liquid sulfur fragments. Although the lake emptied during the 2000 eruption, it later returned to its previous levels. Copahue means "sulphur waters" in Mapuche