"When the Alpine Fault next ruptures, it will produce seismic waves that propagate out in all directions," Townend said. It. SIGNING UP IS FAST, EASY AND FREE (TAKES LESS THAN A MINUTE AND IT'S A FREE FORUM), CLICK IMAGE FOR VIDEO, MAP & ARTICLE LINKS, All of the clocks in the movie Pulp Fiction are stuck on 4:20, IF YOU ENJOY THIS SITE PLEASE TELL OTHERS ABOUT US…SHARING IS CARING. Open, casual and free forum where you can: post and share news events, discuss, debate, learn, or share your knowledge with others or just observe quietly...you're in control! The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. Civil Defence recommends preparing essential emergency items, including: – Torch with spare batteries or a self-charging torch. Newshub staff. NASA Finds Keyhole-shaped Structure on Mars Too Difficult to Explain! The fault, which runs about 600km up the western side of the South Island, poses one of the biggest natural threats to New Zealand. The Alpine Fault project will be one of the first attempts to probe the inside of a major fault before it ruptures. Sorry, your blog cannot share posts by email. Dr Berryman says his team have put together an 8000-year geological record of the Alpine Fault and discovered ruptures happen, on average, every 330 years. He wants to raise awareness, not alarm, so people can be fully prepared. Towns and cities throughout the South Island will feel its tremendous power, with those on the West Coast taking most of its brunt. GNS Science sent four of its geologists to Franz Josef to talk about what will happen when the Alpine Fault ruptures. "By analysing these rupture scenarios mathematically, you can calculate the ground shaking in different places – but you can realistically only do that for a limited range of scenarios because simulating the propagation of seismic waves through complex geological structures is a very large computational task.". His research shows the most serious landslide damage would be to the proposed Haast-Hollyford highway. This happens with incredible regularity around every 300 years, on average. UC PhD graduate Tom Robinson investigated what would happen in a magnitude 8.0 event on the Alpine Fault, which has about a one-in-three to one-in-four chance of occurring in the next 50 years. Along the Alpine Fault, most areas will experience MM9 shaking, with pockets of MM10. It has a clear geologic record of rupturing around every three centuries - and 2017 marked the 300th anniversary of what is thought to have been a magnitude 8 quake that moved one side of the fault by about 8m in a matter of seconds. A simulation shows the widespread damage that could occur if the South Island’s Alpine Fault ruptures. The length of the rupture will be … "By comparison, the Kaikōura Earthquake in 2016 ruptured a total fault length of 200km in the space of about two minutes," said Holden. Techniques for extracting those signals from the noise recordings have been developed by members of the team and applied successfully to faults in California and Japan. Recent studies undertaken as part of the joint AF8 project have suggested a big quake could block South Island highways in more than 120 places, leave 10,000 people cut off, and cost the economy about $10b. Scientists, working as part of Project Alpine Fault Magnitude 8 (AF8), have marked the end of their first two years of work planning and preparing for a severe magnitude eight earthquakes. Each time the fault 'ruptures' it causes a quake around magnitude 8. CHECK OUT OUR EDITOR'S LIST OF MUST READ ARTICLES, Editor’s Addition: The Alpine Fault is a geological fault, specifically a right-lateral strike-slip fault, that runs almost the entire length of New Zealand’s South Island. The novelty of this approach is that calculating how different patterns of slip on the fault affected ground shaking at locations of interest throughout the South Island and southern North Island could be done without having to simulate the entire wave propagation process. A FREE FORUM ) intensity and duration will ultimately depend on what happens on the West Coast over the 12! People in Christchurch, because of their distance away from the Marsden Fund four of its geologists to Josef! 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