Earthquake research a decade after Kaikōura

Ten years after the magnitude 7.8 Kaikōura earthquake, scientists are still learning from this remarkably complex event. Kaikōura challenged earthquake researchers’ understanding of multi-fault earthquakes, pushed rapid response efforts forwards and brought up new questions about slow slip earthquakes. Plus, damage to buildings in Wellington’s CBD brought up new questions about the shape of the sedimentary basin beneath the city and how it acts to amplify ground shaking. Sign up to the Our Changing World monthly newsletter for episode backstories, science analysis and more. LEARN MORE: Revisit the first months of research following the earthquake with this 2017 OCW episode . Learn more about the Hikurangi subduction zone and slow-slip earthquakes . Listen to Underwater slips and slides for more research into geological phenomena that could pose a tsunami risk to Aotearoa. Browse RNZ’s Earthquakes on Our Changing World collection. GUESTS: Dr Anna Kaiser – Chief Scientist, Earthquake Hazards, Earth Sciences New Zealand Emeritus Professor Tim Stern – Te Herenga Waka – Victoria University of Wellington Alistair Stronach – former master’s student at Te Herenga Waka IN THIS EPISODE: (00:00) Introduction (01:02) Complex, multi-fault earthquakes (05:36) Changes to earthquake hazard modelling (09:50) The impacts in Wellington (14:34) Modeling the sedimentary basin (21:32) The basin edge effect (24:28) Reflections a decade on Go to this episode on rnz.co.nz for more details