Global Volcanism Program | Image GVP-09631
The light-colored, flat-bottomed floor of the Playa Hermosa crater is truncated by two younger craters--Irazú's main crater (center) and the Diego de la Haya crater (top left). A greenish lake fills the bottom of the main crater, the source of most of Irazú's historical eruptions. Diego de la Haya was active during the 18th century. An eruption in 1994 took place from vents below the cliff in the shadow at the lower right. Communication towers line the summit ridge of Irazú at the upper right.
Photo by Federico Chavarria Kopper, 1999.