Ring of Fire scale 5 on the Volcanic Explosivity Index, while Merapi has erupted more than 80 times. The International Association of Volcanology and Chemistry of the Earth's Interior has named Merapi as a Decade Volcano since 1995 because of its high volcanic activity. Another active volcano is Sinabung which erupted since 2013 until now. New Zealand contains the world's strongest concentration of youthful rhyolitic volcanoes, and voluminous sheets blanket much of the North Island. The earliest historically-dated eruption was at Whakaari/White Island in 1826, followed in 1886 by the country's largest historical eruption at Mount Tarawera. Much of the region north of
Kula ring Kula ring Kula, also known as the Kula exchange or Kularing, is a ceremonial exchange system conducted in the Milne Bay Province of Papua New Guinea. The Kula ring was made famous by the father of modern anthropology, Bronisław Malinowski, who used this test case to argue for the universality of rational decision making (even among 'natives'), and for the cultural nature of the object of their effort. Malinowski's path-breaking work, "Argonauts of the Western Pacific" (1922), directly confronted the question, "why would men risk life and limb to travel across huge expanses of dangerous ocean to give away what