
In September 2010 and February 2011, two devastating earthquakes (M7.1 and M6.3 respectively) hit the Canterbury region. These earthquakes, as well as M6.3 and M6.0 aftershocks in June 2011 and December 2011, respectively, ruptured a complex network of previously unknown faults hidden beneath North Canterbury. After the devastating February earthquake, it was recognised that far more information was needed about these faults, their location, and behaviour if Christchurch and its residents were to best understand the seismic future of the region.