People gather on high ground in Whangarei, New Zealand, as a tsunami warning is issued Friday, March 5, 2021. The largest quake struck about 1,000 kilometers (620 miles) off the coast of New Zealand. After the largest quake, civil defense authorities in New Zealand told people in some coastal areas to immediately get to higher ground. There were no immediate reports of serious damage or casualties, and the warning was lifted just before the largest quake hit. AdIn 2011, a magnitude 6.3 quake hit the city of Christchurch, killing 185 people and destroying much of its downtown.