Evidence from several disciplines, including anthropology, archaeology, demography, history, and the Maori oral tradition, are combined in this analysis of the many volcanic periods that shaped New Zealand. This authoritative, groundbreaking study examines the consequences on the coastal landscape and its people, from the first Polynesian settlers until European colonization in the 18th century. A study of the wave of tsunamis that struck New Zealand in the 15th century, known as the "big crunch," and precipitated various crises that led to cultural change and much warfare is also included.