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There are no activity reports for Cerro Azul.
Available Weekly Reports
There are no Weekly Reports available for Cerro Azul.
Summary of eruption dates and Volcanic Explosivity Indices (VEI).
|Start Date||Stop Date||Eruption Certainty||VEI||Evidence||Activity Area or Unit|
|1967 Aug 9||Unknown||Confirmed||2||Historical Observations||Quizapu|
|1949 Apr 15 ± 5 days||Unknown||Confirmed||2||Historical Observations||Quizapu|
|1933||1938 Jul 25 (?)||Confirmed||2||Historical Observations||Quizapu|
|1916||1932 Apr 21||Confirmed||5||Historical Observations||Quizapu|
|1914 Sep 8||Unknown||Confirmed||3||Historical Observations||Quizapu|
|[ 1913 Jan 15 ± 45 days ]||[ Unknown ]||Uncertain||2||Quizapu|
|1912 Feb||Unknown||Confirmed||2||Historical Observations||Quizapu|
|1907 Jul 28||Unknown||Confirmed||2||Historical Observations||Quizapu|
|[ 1903 Jan ]||[ Unknown ]||Uncertain||2||Quizapu|
|1846 Nov 26||1853 (?)||Confirmed||2||Historical Observations||Quizapu|
The following references are the sources used for data regarding this volcano. References are linked directly to our volcano data file. Discussion of another volcano or eruption (sometimes far from the one that is the subject of the manuscript) may produce a citation that is not at all apparent from the title. Additional discussion of data sources can be found under Volcano Data Criteria.
Casertano L, 1963a. Chilean Continent. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI, 15: 1-55.
Gonzalez-Ferran O, 1972. Distribucion del volcanismo activo de Chile y la reciente erupcion del Volcan Villarrica. Instituto Geog Militar Chile, O/T 3491.
Gonzalez-Ferran O, 1995. Volcanes de Chile. Santiago: Instituto Geografico Militar, 635 p.
Hildreth W, Drake R E, 1992. Volcan Quizapu, Chilean Andes. Bull Volc, 54: 93-125.
The Cerro Azul stratovolcano is at the southern end of the Descabezado Grande-Cerro Azul eruptive system. Steep-sided 3788-m-high Cerro Azul has a 500-m-wide summit crater that is open to the north. The three basaltic-andesite "La Resoloma Craters" scoria vents are located below the west flank and the two "Los Hornitos" scoria cones on the lower SW flank. Quizapu, a major vent on the northern flank of Cerro Azul, formed in 1846 during the first historical eruption, accompanied by the emission of voluminous dacitic lava flows that traveled both east into the Estero Barroso valley and west into the Río Blanquillo valley. Quizapu was later the source of one of the world's largest explosive eruptions of the 20th century in 1932, which created a 600-700 m wide, 150-m-deep crater and ejected 9.5 cu km of dacitic tephra.