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Global Volcanism Program | Image GVP-11573

An eruption plume from Santa Ana volcano towers above Coatepeque caldera lake.  The brief, one-hour-long explosive eruption the morning of October 1, 2005 produced gas-and-ash plumes that rose 10 km or more.  Ash fell in towns west of the volcano and extended into Guatemala; ashfall caused damage to coffee plantations.  Volcanic blocks up to a meter in diameter fell as far as 2 km south of the summit.  Lahars descended valleys on the flanks of the volcano.  Photo by José Roberto Lopez, 2005 (Coatepeque Watershed Authority).

An eruption plume from Santa Ana volcano towers above Coatepeque caldera lake. The brief, one-hour-long explosive eruption the morning of October 1, 2005 produced gas-and-ash plumes that rose 10 km or more. Ash fell in towns west of the volcano and extended into Guatemala; ashfall caused damage to coffee plantations. Volcanic blocks up to a meter in diameter fell as far as 2 km south of the summit. Lahars descended valleys on the flanks of the volcano.

Photo by José Roberto Lopez, 2005 (Coatepeque Watershed Authority).


Santa Ana

Coatepeque Caldera