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It is located 18 km south of the city of Santa Ana in the municipality of El Congo. It has an altitude of 745 msnm and an area of 25.3 km ². In addition, its depth is 115 m. It has an island called the Isla del Cerro or Teopán. The place name "coatepeque" means "Cerro de Culebras" in Nahuatl.
COATEPEQUE
HOW DID IT ALL BEGIN? ... 50,000 years ago
The volcano of Coatepeque (now Coatepeque Lake), older brother of the present Santa Ana volcano, and father of the rest of volcanoes that make up this eruptive complex, experienced a ferocious period of megatelúrica activity that concluded with a great explosion that left the huge hole Of more than 20 kilometers of radius and about two of depth, that began a long process of catching rainwater and underground to become lake.