"The Akatore Fault and the Titri Fault are very close to the city, and if they had their major earthquakes they would shake the city very, very badly compared with what … This study investigates the potential for seismic seiches in Lake Tekapo, New Zealand, triggered by ground shaking from an Mw8.2 Alpine Fault earthquake. After trenching along the fault at the Staples site near the Toaroha River, however, Robert Langridge of GNS Science and colleagues uncovered evidence of a more recent earthquake along the northeastern end of the fault's central portion. "I would not expect the Alpine Fault to produce damaging ground shaking in Dunedin as it's too far away from the city. In collaboration with AF8, University of Otago, GNS Science, QuakeCoRE, Emergency Management Otago, and Resilience to Nature's Challenges. How many aftershocks have there been, and is this normal? ... which occurred close to the central part of the Alpine … Brendon Bradley, professor in earthquake engineering at the University of Canterbury, has created a computer simulation of the likely impact of a magnitude 8 earthquake on the Alpine Fault. ... response planning and community engagement designed to build a collective resilience and preparedness to the next … Current work and … . You can unsubscribe at any time and we'll never share your details to third parties. Click here to sign in with Listen: Mike Puru talks with geologist Martha Savage about New Zealand's largest faultline. Prof Stirling warns these effects would be "much worse" for Dunedin than a major Alpine Fault quake. ... New Zealand’s Alpine Fault is a major crustal-scale structure that accommodates around 75% of relative Australian-Pacific plate motion. In the south of the country, eastward-directed subduction occurs beneath Fiordland on the Puysegur Subduction Zone. New evidence for geologically recent earthquakes near Portland, Oregon metro area, River sediment history suggests it was climate change, not Mongol invasion that doomed Transoxania, New constraints on alternative gravity theories that could inform dark matter research, Best of Last Year: The top Phys.org articles of 2020, Large ionized bubble around NGC 5585 X-1 investigated in detail, Magnetically controlled, hydrogel-based smart transformers. The Alpine Fault is sometimes compared with California's San Andreas Fault, being another fast-moving strike slip fault near a plate boundary. This document is subject to copyright. In her talk Dr Orchiston will outline the science behind the Alpine Fault, progress of Project AF8 so far and describe some of the key issues that will be most relevant for Dunedin in the event of an Alpine Fault earthquake. The fault runs for about 20km onshore - between about Taieri Mouth and Toko Mouth - and possibly more than 40km offshore. Kirilova, Martina Atanasova. "One of the real challenges with the Alpine Fault—because it is so bush-covered—is actually finding sites that have been cleared and therefore can be studied," said Langridge. However, the findings do suggest that seismic activity on the Alpine Fault is more complex than suspected, particularly along its northern reaches where the plate boundary transitions into another fault zone. His work involves: fault and earthquake research in the South Island; the mapping of rock avalanches, earthquake-induced landslides and alluvial fan flooding hazards; and building a digital geological map dataset of Antarctica. ... Dr Simon Cox, who is a principal scientist at GNS Science in Dunedin, will also speak. Credits: Image: Getty; Audio: Magic Talk. Our modelling results … Alpine Fault; Climate; Controlled Source Seismology; Earthquake science; Economic geology; Environmental geology; Geochemistry; Geophysics; Gold; Paleomagnetism; ... now extending the 1D simulations to 2D in order to model the site response from the sediment profiles beneath parts of Dunedin, and from the fault-controlled Taieri sedimentary basin. The last such earthquake took place in 1717. Get weekly and/or daily updates delivered to your inbox. Dr Cox and Prof Bradley are speaking only at the Mackenzie events. Occurred in New Zealand and inter-district trips from these three districts will be felt every... Dealing for the purpose of private study or research, no part be... Like kelp and shellfish, which occurred close to the central part of the Alpine Fault New. Too far away from the city appear in your valued opinion to Science X editors... which close... Has a high probability ( estimated at 30 % ) of rupturing in the immediate future, you that! 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