Powerful 7.8 earthquake has struck New Zealand. Initially the earthquake has being estimated at 7.4 later scaled up to 7.8, ion depth of 23km, according to the USGS.
Epicentre of this powerful earthquake is centered 46km from the town of Amberley with about 2,000 people, 70km from the town of Kaiapoi with 10,000 residents and 91km north-northeast of Christchurch.
New Zealand authorities have issued a tsunami warning, urging people along the entire east coast to move inland or to high ground. Many aftershocks followed.