The eruption history of Mount Berlin is recorded in outcrops on Mount Berlin, in a blue-ice area on Mount Moulton, away, at Mount Waesche, in ice cores and in the Southern Ocean. A number of tephra layers found in ice cores all across Antarctica have been attributed to West Antarctic volcanoes and in particular to Mount Berlin. Tephras deposited by this volcano have been used to date ice cores, establishing that ice at Mount Moulton is at least 492,000 years old and thus the oldest ice of West Antarctica. So-called megadust layers in ice cores have also been linked to Mount Berlin and other volcanoes in Antarctica.