The Port Hills Fault is an inferred active seismic fault believed to be located beneath the Port Hills near Christchurch, on the east coast of New Zealand's South Island.
A magnitude 6.3 earthquake occurred on the Port Hills Fault at on local time (23:51 UTC), causing widespread damage and fatalities. The earthquake was centred west of the town of Lyttelton, and south-east of the centre of Christchurch, New Zealand's second-most populous city. It followed nearly six months after the 7.1 magnitude 2010 Canterbury earthquake that caused significant damage to the region but no direct fatalities.