Global Volcanism Program | Image GVP-04184
Steep-walled Santiago crater provides a dramatic perspective into the vent of an active volcano. The crater floor is covered by recent lava flows and fume rises from an inner crater. The walls of the 600-m-wide crater expose stacked lava flows, truncated lava lakes, and pyroclastic material erupted from earlier vents.
Photo by Jaime Incer.