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 … The Otago University study said a 200m wide 'fault avoidance zone' should be created to prevent further development in the area. An earthquake on the Alpine Fault sweeps away old forest and creates large tracts of clear ground for new vegetation to spring up upon. The other options are a north-to-south tear starting in Greymouth and heading southwest, or an epicentre near Fox Glacier, heading up and down the fault. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. The team developed its co-ordinated response discussions around a south-to-north earthquake as it was most likely, she said. Recent research by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8,000 years. Boat Tours in Whataroa; Bus Tours in Whataroa; Walking Tours in Whataroa The development of the basins of southwest New Zealand is related to the behaviour of the Fiordland microplate, a rigid block of continental crust located between the Moonlight and Alpine fault systems. ... Impacts of an Alpine Fault Quake . South Island and those that are Cl1!t off to the north-west by the Alpine Fault at the south end of the island. The 2004 Boxing Day tsunami and the 2011 liquefaction of buildings in Christchurch were two past examples of secondary hazards, she said. 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 … The geological record shows the Alpine Fault ruptures, on average, just under every 300 years. Alpine Fault Tours, Whataroa Picture: Touching the Alpine Fault! The Alpine Fault is a geological fault that runs entirely through New Zealand's South Island. Posted June 9, 2020. A south-to-north earthquake is most likely along the South Island's Alpine Fault. 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. Most New Zealanders alive today will still be alive when the Alpine Fault rips in … . This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Recent research by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8,000 years. The glaciers and rivers have removed the rest of the material and spread it out across the lowland plains or onto the sea floor. * Alpine Fault moves more than any other fault in the world * Alpine Fault spreads across South Island, researchers say * When, not if: Alpine fault could cause 8 … "What it [the figures] also tells us is that these events have been popping off through time and there's really no reason for them to stop happening.". The Alpine Fault quickly became accepted as a notable feature of the geology of New Zealand, and by 1948 was included on standard geological maps. Although the Alpine Fault seems so obvious today, but it was not recognised until 1941 by … The length of the rupture will be … Alpine Fault movement. Movement along this fault has uplifted the Southern Alps and caused large earthquakes. Regardless of the epicentre, Marlborough was looking at an intensity 6 or 7 earthquake on the Mercalli scale when the Alpine Fault finally gave. Recent research (published in 2012) by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8000 years. "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.". The Alpine Fault runs for about 600km up the spine of the South Island, and is one of the world’s major geological features. Postal Address: 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. 8.2b). 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. Snow on the mountains of the Pacific plate contrasts with the lower land of the Australian plate. Work during the 1990s has established that the Alpine Fault is a major source of potential seismic hazard and incorporation of data from the fault into seismic hazard maps has greatly changed the perception of earthquake hazard in 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. "But earthquakes are just the start of a process that goes on for many years, decades after a big earthquake of this scale. By Alice Lake-Hammond. That's before satellite photographs or plate tectonics. Dr Caroline Orchiston explains the Alpine Fault and the damage the earthquake will have. The Southern Alps have been uplifted over 20 kilometres over 12 million years but erosion has kept their height below 4,000 metres. The length of the rupture will be … Can't find Fault. Alpine Fault Tours Exposed, Whataroa: See 24 reviews, articles, and 43 photos of Alpine Fault Tours Exposed, ranked No.3 on Tripadvisor among 4 attractions in Whataroa. [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. Spot the fault. Helpful. The Alpine Fault marks the boundary of the Pacific and Australian Plates. 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. The Alpine Fault runs 400km up the South Island, along the western edge of the Southern Alps. You can pick out the line of the Alpine Fault on this satellite image of the South Island. Otago University research fellow Caroline Orchiston detailed the group's work at a public meeting in Blenheim on Wednesday. A big quake on the Alpine Fault could block South Island highways in more than 120 places and leave 10,000 people cut off, new research has estimated. Things to do near Alpine Fault Tours. The rapid uplift also means that faulted rock from deep down has been brought to the surface, and can be studied by scientists. Kiwis needed to be concerned about an Alpine Fault quake, as it would likely "happen in the lifetime of many New Zealanders", Orchiston said. Dr Caroline Orchiston explains the Alpine Fault and the damage the earthquake will have. 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 believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. 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. Things to do near Alpine Fault Tours. Image: LEARNZ. Movement along the Alpine Fault has uplifted the Southern Alps. Imagine what a magnitude-8 earthquake would do. Whataroa Tourism; Whataroa Accommodation; Whataroa Bed and Breakfast; Whataroa Holiday Rentals; Whataroa Holiday Packages; Whataroa Flights; Whataroa Restaurants The Alpine Fault is where two great tectonic plates push together. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Whataroa Tourism; Whataroa Hotels; Bed and Breakfast Whataroa; Whataroa Holiday Rentals; Flights to Whataroa; Whataroa Restaurants; Whataroa Attractions; Whataroa Travel Forum PO Box 13 678, Alpine orogeny, mountain-building event that affected a broad segment of southern Europe and the Mediterranean region during the Paleogene and Neogene periods (65.5 million to 2.6 million years ago).The Alpine orogeny produced intense metamorphism of preexisting rocks, crumpling of rock strata, and uplift accompanied by both normal and thrust faulting. How do you think you would be affected by a rupture of the Alpine Fault? 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