The smaller cone is located within the larger volcanic cone

Aogashima is a complex volcanic island 3.5 km (2.2 mi) in length with a maximum width of 2.5 km (1.55 mi). The island is surrounded by very steep rugged cliffs of layered volcanic deposits. The southern coast also rises to a sharp ridge forming one edge of a caldera named Ikenosawa with a diameter of 1.5 km (0.9 mi). The caldera dominates the island, with one point on its southern ridge, Otonbu with a height of 423 metres (1,388 ft), as the island’s highest point. The caldera is occupied by a secondary cone named Maruyama.

09. Santa Margarida Volcano — Spain



The Santa Margarida Volcano is a volcano in the comarca of Garrotxa, Catalonia, Spain. The volcano has a perimeter of 2 kilometers (1.25 mi) and a height of 682 meters (2.240 ft) and is part of the Garrotxa Volcanic Zone Natural Park. The hermitage of Santa Margarida, after which the volcano was named, is inside the crater of the volcano. The building was destroyed in 1428 during the 1428 Catalonia earthquake and rebuilt in 1865

The region is well known for its volcanic zone and is regularly visited, but there is almost no information on the hermitage. Travelers can only hope the volcano doesn't suddenly erupt, leaving the world with no knowledge and no remains of this unusual site.