The Huaynaputina ash layer has been used as a tephrochronological marker for the region, for example in archeology and in volcanology, where it was used to date an eruption in the Andagua volcanic field for example. The ash layer, which may have reached as far as East Rongbuk Glacier at Mount Everest in the Himalaya, has also been used as a tephrochronological marker in Greenland and Antarctic ice cores, and proposals have been made to use it as a marker for the onset of the Anthropocene.