Filter. Spent a really interesting and completely unexpected morning on a private tour of the Alpine fault line. But most dangers would not appear until after the Alpine Fault earthquake, Orchiston said. Reviewed 17 December 2016 via mobile . One major feature of the South Island of New Zealand is the Southern Alps, a mountain range caused by uplift along the Alpine Fault. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. It forms a boundary between the Pacific Plate and the Indo-Australian Plate . Each time it has ruptured, it has also moved vertically, lifting the Southern Alps in the process. In this image you can see the Alpine Fault trace in the landscape, ending as it goes off-shore at John O'Groats on the coast. 0. The Alpine Fault runs for over 800km up the spine of the South Island. Although the Alpine Fault accommodates a substantial amount of interplate slip, a significant proportion is distributed to the east within and east of the Southern Alps. Photo: RNZ / Veronika Meduna. Photo credit: Project AF8 8.2b). Whataroa Tourism; Whataroa Hotels; Bed and Breakfast Whataroa; Whataroa Holiday Rentals; Flights to Whataroa; Whataroa Restaurants; Whataroa Attractions; Whataroa Travel Forum Alpine Fault Tours, Whataroa Picture: Touching the Alpine Fault! It’s the part of the active boundary between the Pacific and Australian tectonic plates where they intersect on land. [Chapter Break] After their ground­breaking paper on the Alpine Fault, Willett was posted to Invercargill and Wellman to another war­time project at d’Urville Island. Dr Caroline Orchiston explains the Alpine Fault and the damage the earthquake will have. This demonstration allows you to go on a virtual field trip along the Alpine Fault and see some of the key outcrops. You can pick out the line of the Alpine Fault on this satellite image of the South Island. From there, the Alpine Fault runs along the western edge of the Southern Alps, before splitting into a set of smaller dextral strike-slip faults north of Arthur’s Pass, known as the Marlborough Fault System. A rupture along the full length of the fast-slipping Alpine Fault on New Zealand's South Island poses the largest potential seismic threat to the southern and central parts of the country. “Hands on Alpine Fault learnings plus a bush short walk in Whataroa ... Read reviews in English Go back. These include the Clarence, Awatere and Hope Faults, all of which take some of the seismic load off the northern part of the Alpine Fault and transfer it through Marlborough. The rapid uplift also means that faulted rock from deep down has been brought to the surface, and can be studied by scientists. The Alpine Fault. Preparing for the big one on the Alpine Fault, Team granted funding to plan response for Alpine Fault megaquake, Lunchtime sightseeing trip in new helicopter ends with fatal crash, Transport Agency employee breaching learner licence kills motorcyclist, This could be the worst Parliament since MMP unless urgent changes are made, Pilot injured after helicopter crash in Hawke's Bay, Auckland mum appalled after school staff member put tape on her son's mouth, Quiz: Morning trivia challenge: December 16, 2020, Coastal residents’ fight for their homes comes to an end, Covid-19: Rest home volunteer dressed as Santa infects 75 residents in super-spreader event, In a first, leading Republicans call Joe Biden US president-elect, Distressed investors handed over more than $13m to missing Australian woman Melissa Caddick. Camp Glenorchy project manager Steve Hewland talks about the resilience factors of the newly-built camping ground near Queenstown. Alpine Fault virtual field trip . Horizontal movement of the Alpine Fault is about 30m per 1,000 years — very fast by global standards. The length of the rupture will be … The geological record shows the Alpine Fault ruptures, on average, just under every 300 years. Recent research by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8,000 years. In Newsletter, Response Planning. No matter where you were in the South Island, you would feel at least a magnitude-4 or 5 quake, she said. Spot the fault. 2017 is the 300th anniversary of the last major rupture on the 850-km long Alpine Fault. "The Alpine Fault is a spectacular fault, it's more than 800 kilometres long at its full extent," Orchiston said. Most New Zealanders alive today will still be alive when the Alpine Fault rips in … A south-to-north earthquake is most likely along the South Island's Alpine Fault. The Alpine Fault, which runs about 600km up the western side of the South Island between Milford Sound and Marlborough, poses one of the biggest natural threats to New Zealand - especially the West Coast, Canterbury and Otago. Movement along the Alpine Fault has uplifted the Southern Alps. The Alpine Fault splits the South Island in two, and forms the abrupt western edge of the Southern Alps. Seismic imaging (Davey et al., 1995) indicates that the central segment of the Alpine Fault dips southeastward at angles of 40-50° to a depth in excess of 25 km (Fig. Forming the western edge of the Southern Alps, it is clearly visible from space. 32 11. Alpine Fault Tours began in 2012 when Gray and Vickie Eatwell bought a farm next to the natural exposure of the Alpine Fault, at Gaunt Creek, near Whataroa in South Westland, New Zealand. Image: LEARNZ. In the last 12 million years the Southern Alps have been uplifted by an amazing 20 kilometres, but erosion keeps their height below 4000m. The seismicity rate of the Alpine fault is low but comparable to locked sections of the San Andreas fault, with large earthquakes expected. Posted June 9, 2020. That's before satellite photographs or plate tectonics. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. The Alpine Fault was inferred to continue south-west from Lake McKerrow along the northern Fiord-land Coast (see also Grindley, 1958). In between earthquakes, the Alpine Fault is locked. The Bank of New Zealand has received a warning from the Commerce Commission over its likely failure to meet responsible lending requirements … The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. Since September, an international team of scientists has b een based on the West Coast drilling into the Alpine Fault - the on-land boundary between the Pacific and Australian tectonic plates. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. This year has continued our recent run of declared states of emergency around the country with what will be the largest All of Government response seen in New Zealand probably since the last world … "What we're seeing is a very long history of seismic activity on the fault, which is a really unique record," Orchiston said. How do you think you would be affected by a rupture of the Alpine Fault? The glaciers and rivers have removed the rest of the material and spread it out across the lowland plains or onto the sea floor. Read more. From there, the Alpine Fault runs along the western edge of the Southern Alps, before splitting into a set of smaller dextral strike-slip faults north of Arthur's Pass, known as the Marlborough Fault System. Things to do near Alpine Fault Tours. The 2004 Boxing Day tsunami and the 2011 liquefaction of buildings in Christchurch were two past examples of secondary hazards, she said. This is now most evident in the Southern Alps, formed by compression of the crust beside the Alpine Fault. An earthquake on the Alpine Fault sweeps away old forest and creates large tracts of clear ground for new vegetation to spring up upon. On the go and no time to finish that story right now? Co-ordinated Planning and Partnerships Pay Off. 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 … A project set to drill 1.3 kilometres into the Alpine Fault has been called off 400 metres shy of its goal. Elisabeth, your guide, has a good knowledge of the Alpine Fault, and to be able to straddle 2 tectonic plates was a real moment to remember. Fault line . From there, the Alpine Fault runs along the western edge of the Southern Alps, then splits into three parallel faults north of Arthur's Pass , merging into the Kermadec-Tonga Subduction Zone in the Hikurangi Trench off the coast of the North Island. The aftershock sequence could involve earthquakes of as much as M7 and continue for many years, Violent shaking will cause widespread landslides and weaken rock, making landslides more common for many years, Rivers may change course, will carry more sediment and therefore flood more easily, Towns and infrastructure such as roads, bridges, power lines and communication services will be disrupted, West Coast industries such as tourism, coal and gold mining, forestry and wood processing, fishing, and dairy farming will all be affected by an Alpine Fault earthquake. Boat Tours in Whataroa; Bus Tours in Whataroa; Walking Tours in Whataroa Movement along this fault has uplifted the Southern Alps and produced large earthquakes. This is based on how regularly it has ruptured in the past. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. The Alpine Fault is where two great tectonic plates (the Pacific and Australian) plates collide. By Alice Lake-Hammond. Image: LEARNZ. Alteration Along the Alpine Fault Helps Build Seismic Strain . It passes offshore in South Westland (bottom left), and is responsible for … Imagine what a magnitude-8 earthquake would do. Regardless of the epicentre, Marlborough was looking at an intensity 6 or 7 earthquake on the Mercalli scale when the Alpine Fault finally gave. Motion on the fault is in a direction that plunges approximately 22°, indicating that the fault in … Earthquakes along the fault have formed the Southern Alps . 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