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Global Volcanism Program | Image GVP-09313

Intermittent explosive activity during the 1963-65 eruption of Irazú cumulatively produced extensive ashfalls that caused significant economic problems to San Jose and other populated areas of the Central Valley of Costa Rica.  During the first weeks of January 1964 heavy ashfall was distributed by winds as far away as Tamarindo beach on the Pacific coast and Lake Nicaragua, 180 km NE of the volcano. Photo by W. Schaer (published in Barquero, 1998).

Intermittent explosive activity during the 1963-65 eruption of Irazú cumulatively produced extensive ashfalls that caused significant economic problems to San Jose and other populated areas of the Central Valley of Costa Rica. During the first weeks of January 1964 heavy ashfall was distributed by winds as far away as Tamarindo beach on the Pacific coast and Lake Nicaragua, 180 km NE of the volcano.

Photo by W. Schaer (published in Barquero, 1998).


Irazú