Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Galápagos Islands' has mentioned 'Caldera' in the following places:
Occurrence Sentence Text Source
The Galxc3xa1pagos's shape is due to the pattern of radial and circumferential fissure, radial on the flanks, but circumferential near the caldera summits.
The Sierra Negra fault is associated with a sill 2xc2xa0km below the caldera.
The caldera on Fernandina experienced the largest basaltic volcano collapse in history, with the 1968 phreatomagmatic eruption.
In April 2009, lava from the volcanic island Fernandina started flowing both towards the island's shoreline and into the center caldera.
This island is formed by the remaining edge of a large caldera that is submerged.