Port Hills Fault

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.
Christchurch earthquake.
A 6.3-magnitude 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.