Tierra Blanca Joven tephra identified at San Andrés, showing different thickness of tephra found in different excavated areas: A) Trench 6 located in the Campana structure; B) Pit 3 located in the North Plaza; C) Trench 9 located in Structure 10; D) Trench 8 located in Structure 6 (photographs by A. Ichikawa).
Scientists have studied how ancient people responded to catastrophic natural events and discovered ancient Maya people used volcanic ash to build some of their pyramids.
According to Akira Ichikawa, an archaeologist at the University of Colorado Boulder excavation and radiocarbon data reveal the Maya survivors and/or re-settlers made considerable efforts to construct monumental public buildings immediately following the eruption of Tierra Blanca Joven at San Andrés, El Salvador.
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