Localisation: Located 38º 24’ N and 28º 33’ W, the island is 20 km (11 miles) distant from Pico Island, 40 km (21 ,6 miles) south from Graciosa Island, 30 km (16, 2 miles) east from Faial Island and 60 km (32, 4 miles) east of Terceira Island. Its surface is of 246 sq km (95 sq miles), with 56 km (30, 2 miles) length and 8 km (4, 3 miles) width.