The two small islands in the center of the Santorini caldera, Palea and Nea Kameni, " the volcano " to the local people, are the youngest volcanic lands in the Eastern Mediterranean. Palea Kameni (Old Burnt Island) is less than 2000 years old, while Nea Kameni (Young Burnt Island) began to form only 425 years ago and its youngest lavas are less than 50 years old. These two islands represent the volcano's most recent activity.