One Billion Years of Continental Drift The Map Room So this animation went viral last week, showing the movement of Earth’s tectonic plates over the past billion years, posted by one of the co-authors of a study proposing a new, single model of plate tectonic activity that covers the past billion years of Earth’s existence. Humanitarian Mapping Maps Mania The Humanitarian OpenStreetMap Team (HOT) is a body which liaises between the OpenStreetMap organization and humanitarian organisations.