What continent lies under the islands of New Zealand?

Question

In 1835 Maori from the mainland of New Zealand went to Rekohu, or the Chatham Islands, and slaughtered and enslaved the entire population of which people?

Answer 1

Zealandia
Zealandia is understood to have broken off from Antarctica about 100 million years ago, and then from Australia about 80 million years ago. Conflict between two tectonic plates which lie longitudinally across Zealandia involve the Australian tectonic plate and the Pacific plate.