Azores inhabitants. The nine islands that compose the archipelago occupy a surface area of , that includes both the main islands and many islets located in their vicinities. Each of the islands has its own distinct geomorphological characteristics that make them unique: Corvo (the smallest island) is a crater of a major Plinian eruption; Flores (its neighbor on the North American Plate) is a rugged island carved by many valleys and escarpments; Faial characterized for its shield volcano and caldera (Cabeço Gordo); Pico, is the highest point, at , in the Azores and continental Portugal; Graciosa is known for its active
Azores , from the area west of Graciosa until the islets of the Formigas, that includes the islands of Graciosa, Terceira and São Miguel. Its northwest limit connects to the Mid-Atlantic Ridge, while the southeast section intersects the Gloria Fault southeast of the island of Santa Maria. The Azores Fracture Zone extends from the Glória Fault and encompasses a relatively inactive area to the south of the islands of the Central and Eastern groups north to the Terceira Rift, along a 45° angle. The Glória Fault, for its part, extends along a linear line from the Azores to the Azores–Gibraltar Transform