Aogashima is a volcanic Japanese island in the Philippine Sea. The island is administered by Tokyo and located approximately 358 kilometres (222 mi) south of Tokyo and 64 kilometres (40 mi) south of Hachijo-jima. It is the southernmost and most isolated inhabited island of the Izu archipelago.
My depiction includes water inside the Caldera Maruyama which is inside of the larger Caldera of Ikenosawa. With heights rising to 44m I smoothed it all out a bit more than the real place because that is just what I do, so deal!!