The Hikurangi Trench ( also called the Hikurangi Trough ) is a linear deep in the Pacific Ocean off the east coast of the North Island of New Zealand , lying between the southern end of the Cook Strait and the Chatham Rise .
The Hikurangi Trench lies in the Pacific Ocean off the east coast of New Zealand . 
 It lies between the southern end of Cook Strait and the Chatham Rise .