One of the southernmost islands in Cape Verde, Fogo is located between the islands of Santiago to the east and Brava to the west. It is 26.3 km long and 23.9 km wide; its area is 476 km2.: Practically the whole island is a stratovolcano that has been periodically active: it last erupted in 2014. The largest volcanic feature is Bordeira, a caldera, which has walls high, and has a breach in its eastern rim. Two small villages, Portela and Bangaeira, exist in the floor of the caldera (Chã das Caldeiras); the residents were evacuated during eruptions.