7 Mar 2026

Graham Leonard: New earthquake fault lines

From Saturday Morning, 10:42 am on 7 March 2026

Currently there are four studies looking at how we learn about the sources of earthquakes across the motu. 

Dozens of previously unknown faultlines have been discovered under Auckland, trenches are being dug at the Papawai Fault, hidden quake activity has been discovered in Hamilton and other new research has uncovered seven previously unknown earthquake faults in Wairarapa. 

Graham Leonard is Principal Scientist at Earth Sciences NZ and he joins Mihingarangi to discuss the latest discoveries. 

File footage, ESNZ – a diagonal fault offset exposed in a trench.

File footage, ESNZ – a diagonal fault offset exposed in a trench. Photo: Lloyd Homer