Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Pre-Hispanic City of Teotihuacan' has mentioned 'Volcano' in the following places:
Occurrence Sentence Text Source
Scholars have speculated that the eruption of the Xitle volcano may have prompted a mass emigration out of the central valley and into the Teotihuacan valley.
There is a theory[40] that the collapse of Teotihuacan was caused by the devastation of its agriculture by the 535 CE eruption of the Ilopango volcano in El Salvador.
[42] Roughly around 100 BC however, the power dynamic changed when Mount Xitle, an active volcano, erupted, and heavily impacted Cuicuilco and the farmland that supported it.