"The Alpine Fault is a spectacular fault, it's more than 800 kilometres long at its full extent," Orchiston said. The Bank of New Zealand has received a warning from the Commerce Commission over its likely failure to meet responsible lending requirements … The study aims to inform locals and tourists of the significant risk to the area should the Alpine faultline go off. Seismologists regarded the past 30 to 40 years as a period of quiescence in New Zealand as there had been no big on-land earthquakes. "The tsunami, in the Alpine Fault case, might be [caused by] submarine landslides being generated off the West Coast, and it will impact the West Coast. Forming the western edge of the Southern Alps, it is clearly visible from space. The Southern Alps have been formed over millennia by upthrust from successive earthquakes on the Alpine Fault. 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. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. 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. "For those of you who felt the earthquake in Kaikōura, those many minutes of shaking, this [the Alpine Fault earthquake] will feel similar for you in Marlborough.". Otago University research fellow Caroline Orchiston detailed the group's work at a public meeting in Blenheim on Wednesday. Less certain is where the megaquake will hit, but the most likely is a south-to-north quake centred at Milford Sound, with intensity-7, 6 and 5 quakes rippling up the South Island. Recent research by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8,000 years. An earthquake on the Alpine Fault sweeps away old forest and creates large tracts of clear ground for new vegetation to spring up upon. Image: LEARNZ. The: pre-Cretaceous rock belts and the faults are clearly shown on the 1958 Geological Map of New Zealand. The Hope Fault, which caused a magnitude 7 to 7.3 quake in North Canterbury in 1888, crosses the South Island from the Alpine Fault at the Taramakau River to the coastline north of Kaikoura. 20 years earlier, they had been in tourism in Fiordland NZ, taking international visitors on overnight cruises to see the fiords - and this will become relevant in a moment. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. Horizontal movement of the Alpine Fault is about 30m per 1,000 years — very fast by global standards. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. In Newsletter, Response Planning. Scientists believe the Alpine Fault has a high probability (estimated at 30%) of rupturing in the next 50 years. Affect a much larger area than earthquakes such as the Darfield earthquake. The Alpine Fault is a geological fault that runs almost the entire length of New Zealand's South Island (c. 480 km) and forms the boundary between the Pacific Plate and the Indo-Australian Plate. The Alpine Fault is where two great tectonic plates (the Pacific and Australian) plates collide. Alpine Fault Tours, Whataroa Picture: Touching the Alpine Fault! Photo: RNZ / Veronika Meduna. We've known about the Alpine Fault for around 80 years. Abstract Tectonic weakening of bedrock along the Alpine Fault Zone (AFZ) in South Westland and northern Fiordland, New Zealand, has favoured erosion of schist‐derived mylonite and cataclasite by a variety of slope failures. Forming the western edge of the Southern Alps, it is clearly visible from space. The team developed its co-ordinated response discussions around a south-to-north earthquake as it was most likely, she said. The Alpine Fault is where two great tectonic plates push together. This is based on how regularly it has ruptured in the past. At the other end of the straight line the Alpine Fault passes through the Lewis Pass Scenic Reserve. The Alpine Fault is a geological fault that runs entirely through New Zealand's South Island. 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. "Marlborough has, tsunami-wise, more to be concerned about from the Hikurangi Trench off the east coast of the North Island, which poses quite a threat.". Fault line . You can pick out the line of the Alpine Fault on this satellite image of the South Island. Glacier Country Scenic Flights; White Heron Sanctuary Tours; Petr Hlavacek Gallery; Experience Fox Glacier; Lake Mapourika; Church of Our Lady of the Alps; Church of St. James; Hukawai Lodge; Hukawai Art Gallery; Tours in Whataroa. The Alpine Fault runs for about 600km up the spine of the South Island, and is one of the world’s major geological features. The scenarios were designed and developed as part of Project AF8, or Alpine Fault Magnitude 8, a partnership of all the Emergency Management Groups in the South Island. The 7.8-magnitude Kaikōura earthquake ripped road and rail apart. David B wrote a review Feb 2020. Date of experience: November 2020. Although the Alpine Fault seems so obvious today, but it was not recognised until 1941 by two … How often does the Alpine Fault rupture? It’s the part of the active boundary between the Pacific and Australian tectonic plates where they intersect on land. "It was scientifically credible, but also it provided probably the most significant test for Civil Defence around the South Island," Orchiston said. Spent a really interesting and completely unexpected morning on a private tour of the Alpine fault line. 2017 is the 300th anniversary of the last major rupture on the 850-km long Alpine Fault. Share. The length of the rupture will be … No matter where you were in the South Island, you would feel at least a magnitude-4 or 5 quake, she said. "As you can see, there's a potential for more damage up in the northern part of the South Island, where more of the population lives.". Because of the way earthquake magnitude is measured this means that a magnitude 8 earthquake releases about 30 times more energy than a magnitude 7. The Alpine Fault is a geological fault, known as a right-lateral strike-slip fault, that runs almost the entire length of New Zealand's South Island. The Alpine Fault runs for over 800km up the spine of the South Island. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. Tree ages in this entire region are therefore clustered around the times of major earthquakes. During the Eo‐Oligocene, extensional oblique‐slip (transtension) on these fault systems led to the subsidence and final submergence of Fiordland. The Alpine Fault, running up the South Island, has an earthquake nearly every 300 years. Co-ordinated Planning and Partnerships Pay Off. 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. It passes offshore in South Westland (bottom left), and is responsible for … There is no way of predicting exactly when an earthquake will occur. The seismicity rate of the Alpine fault is low but comparable to locked sections of the San Andreas fault, with large earthquakes expected. The Alpine Fault is a geological fault, known as a right-lateral strike-slip fault, that runs almost the entire length of New Zealand's South Island. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Things to do near Alpine Fault Tours. The alpine fault is located in New Zeland. A number of outstanding problems remain in regard to the Alpine Fault, two of which are: Athy 19 contributions 4 helpful votes. 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