Claim: Mount Siple, a potentially active Antarctic shield volcano named after Paul A. Siple (1908–68), a US Antarctic explorer and geographer, has a volume of 1,800 cubic kilometres (430 cu mi) is comparable to that of Mount Erebus.
Evidence: Mount Siple is a potentially active Antarctic shield volcano, rising to 3,110 metres (10,203 ft) and dominating the northwest part of Siple Island, which is separated from the Bakutis Coast, Marie Byrd Land, by the Getz Ice Shelf. Mount Siple is named after Paul A. Siple (1908–68), a US Antarctic explorer and geographer who took part in six Antarctic expeditions, including the two Byrd expeditions of 1928-30 and 1933-35 (Siple Coast, Siple Island). Its volume of 1,800 cubic kilometres (430 cu mi) is comparable to that of Mount Erebus.