A seabed survey in Cook Strait by NIWA's flagship research vessel Tangaroa showed that the origin of the magnitude 6.5 July earthquake was a previously unknown 'blind' fault.
Water & Atmosphere 8, September 2013
The September 2013 edition of NIWA's flagship publication, Water & Atmosphere.
A PDF copy is also available, and can be downloaded by clicking on the link below.
Water & Atmosphere 8, September 2013 (PDF 7.2 MB)
The discovery of seven new species of sea urchins, known as tam o'shanters, has helped resolve more than a hundred years of confusion about their distribution in New Zealand waters.