Major quake strikes off New Zealand; tsunami warning issued Posted byadmin July 15, 2009 New Zealand was under a tsunami warning on Wednesday after a major earthquake with a magnitude of 7.8 struck off the west coast of its South Island, according to the U.S. Pacific Tsunami Warning Center. Related posts: Powerful quake off Honduras coast spurs tsunami watch Strong quake rattles New Zealand region Quake strikes near Acapulco, Mexico Suburban ‘tsunami’ kills 77 in Jakarta Solar tsunami data will predict Earth havoc