Epi (or Épi; formerly known as Tasiko or Volcano Island) is the name of an island in Vanuatu, at the north end of the Shepherd Islands). It is in Shefa Province. It is 43 kilometres (27 mi) long northwest-southeast, and 18 kilometres (11 mi) wide, with an area of 444 square kilometres (171 sq mi). Its shoreline measures 130 km. In 1986 it had a population of 3,035.