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Global Volcanism Program | Image GVP-11649

The caldera of Cerro Azul volcano is seen from the east, with the slopes of Sierra Negra volcano in the foreground.  The steep-walled 4 x 5 km nested summit caldera complex is 650 m deep.  Dark-colored, fresh-looking lava flows erupted from NE flank vents can be seen at the right, and a SE flank fissure erupted in 1998, producing a lava flow that reached to within 2 km of the coast.  Photo by Patricio Ramon, 2003 (Instituto Geofisca, Escuela Politecnica Nacional).

The caldera of Cerro Azul volcano is seen from the east, with the slopes of Sierra Negra volcano in the foreground. The steep-walled 4 x 5 km nested summit caldera complex is 650 m deep. Dark-colored, fresh-looking lava flows erupted from NE flank vents can be seen at the right, and a SE flank fissure erupted in 1998, producing a lava flow that reached to within 2 km of the coast.

Photo by Patricio Ramon, 2003 (Instituto Geofisca, Escuela Politecnica Nacional).


Cerro Azul