Original sentence: Mount Siple is a dormant shield volcano, rising to  and dominating the northwest part of Siple Island, which is separated from the Bakutis Coast, Marie Byrd Land, by the Getz Ice Shelf
Edited sentence: Mount Siple is a potentially active shield volcano, rising to  and dominating the northwest part of Siple Island, which is separated from the Bakutis Coast, Marie Byrd Land, by the Getz Ice Shelf