A small blocky lava dome within the Caliente vent on the Santiaguito lava dome of Guatemala's Santa María volcano on 18 July 1969. This was near the beginning of a period of renewed activity at this vent. Growth of the composite Santiaguito lava dome has been ongoing since 1922.

Copyrighted photo by Dick Stoiber, 1969 (Dartmouth College).

Keywords: lava dome | volcanic gas | eruption

Santa María