Recent research by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8,000 years. 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 … The investigation found the mean interval between large earthquakes on the fault is 330 years and two thirds of the intervals were between 260 and 400 years. "The Alpine Fault is a spectacular fault, it's more than 800 kilometres long at its full extent," Orchiston said. Photo credit: Project AF8 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. 0. Most New Zealanders alive today will still be alive when the Alpine Fault rips in … Recent research (published in 2012) by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8000 years. The Alpine Fault is a geological fault that runs entirely through New Zealand's 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. [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. It’s the part of the active boundary between the Pacific and Australian tectonic plates where they intersect on land. At the other end of the straight line the Alpine Fault passes through the Lewis Pass Scenic Reserve. The Alpine Fault, running up the South Island, has an earthquake nearly every 300 years. 1. Movement along this fault has uplifted the Southern Alps and produced large earthquakes. 2017 is the 300th anniversary of the last major rupture on the 850-km long Alpine Fault. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. During the Eo‐Oligocene, extensional oblique‐slip (transtension) on these fault systems led to the subsidence and final submergence of Fiordland. The Alpine Fault marks the boundary of the Pacific and Australian Plates. 01donala. Whataroa Tourism; Whataroa Hotels; Whataroa Bed and Breakfast; Whataroa Holiday Rentals; Whataroa Packages; Flights to Whataroa; Whataroa Restaurants; Whataroa Attractions 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. 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. As with many natural systems, there was a spread of intervals with the longest being about 510 years and the shortest about 140 years. A project set to drill 1.3 kilometres into the Alpine Fault has been called off 400 metres shy of its goal. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. "The intensity of course depends on the type of ground you're standing on and how far away you are from the Alpine Fault. Movement along this fault has uplifted the Southern Alps and caused large earthquakes. One major geographic feature of the South Island of New Zealand is the Southern Alps, a mountain range caused by tectonic uplift along the Alpine Fault. 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 lack of a historical record for the Alpine Fault means that we must instead examine the geological record left by past ruptures. The Alpine Fault marks the boundary of the Pacific and Australian Plates. 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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. Scientists believe the Alpine Fault has a high probability (estimated at 30%) of rupturing in the next 50 years. The 7.8-magnitude Kaikōura earthquake ripped road and rail apart. The last Alpine Fault quake, which occurred in 1717, measured an approximate magnitude 8.1 - making it about three times stronger than the Kaikoura quake of 2016. 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 team developed its co-ordinated response discussions around a south-to-north earthquake as it was most likely, she said. Fault line . The Bank of New Zealand has received a warning from the Commerce Commission over its likely failure to meet responsible lending requirements … This meant that a magnitude 8 earthquake on the Alpine Fault would release 30 times more energy than the 1968 magnitude 7 earthquake at Inangahua, on the South Island's West Coast. 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 is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. Filter. PO Box 13 678, Earthquake epicentres indicate that the arc defines the position of the fault just off Fiordland's outer coast and then to near the north end of Puysegur Trench at 46.9° S, 165.25° E. Along the fault vertically to a depth of 10 km the Fiordland rocks are 0.6 Mg/m 3 denser than those to the northwest. How often does the Alpine Fault rupture? This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Boat Tours in Whataroa; Bus Tours in Whataroa; Walking Tours in Whataroa Regardless of the epicentre, Marlborough was looking at an intensity 6 or 7 earthquake on the Mercalli scale when the Alpine Fault finally gave. The Southern Alps have been formed over millennia by upthrust from successive earthquakes on the Alpine Fault. 32 11. The study aims to inform locals and tourists of the significant risk to the area should the Alpine faultline go off. New evidence of a 19th century earthquake on New Zealand's Alpine fault suggests that in at least one portion of the fault, smaller earthquakes may occur in between such large rupture events. 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 . Earthquakes along the fault have formed the Southern Alps . Read more. Motion on the fault is in a direction that plunges approximately 22°, indicating that the fault in … The rapid uplift also means that faulted rock from deep down has been brought to the surface, and can be studied by scientists. Movement along the Alpine Fault has uplifted the Southern Alps. 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 believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. "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.". This is based on how regularly it has ruptured in the past. 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 Ministry of Civil Defence approved a grant of $680,000 over three years for Project AF8, with work starting in 2016. 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 … "It was scientifically credible, but also it provided probably the most significant test for Civil Defence around the South Island," Orchiston said. "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. 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. An earthquake on the Alpine Fault sweeps away old forest and creates large tracts of clear ground for new vegetation to spring up upon. Snow on the mountains of the Pacific plate contrasts with the lower land of the Australian plate. David B wrote a review Feb 2020. 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. Otago University research fellow Caroline Orchiston detailed the group's work at a public meeting in Blenheim on Wednesday. Camp Glenorchy project manager Steve Hewland talks about the resilience factors of the newly-built camping ground near Queenstown. Your News is the place for you to save content to read later from any device. A south-to-north earthquake is most likely along the South Island's Alpine Fault. You can pick out the line of the Alpine Fault on this satellite image of the 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. The alpine fault is located in New Zeland. Helpful. There have been no major earthquakes on the main portion of it. It passes offshore in South Westland (bottom left), and is responsible for … Whataroa Tourism; Whataroa Hotels; Whataroa Bed and Breakfast; Whataroa Holiday Rentals; Whataroa Packages; Flights to Whataroa; Whataroa Restaurants; Whataroa Attractions The Alpine Fault is where two great tectonic plates push together. The Otago University study said a 200m wide 'fault avoidance zone' should be created to prevent further development in the area. We've known about the Alpine Fault for around 80 years. "When we think of earthquakes, our mind goes straight to shaking, straight to the panic we feel when the ground moves," Orchiston said. Posted June 9, 2020. Scroll down to discover how! 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 … Athy 19 contributions 4 helpful votes. 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. 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. Things to do near Alpine Fault Tours. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. The Alpine Fault is where two great tectonic plates (the Pacific and Australian) plates collide. There is no way of predicting exactly when an earthquake will occur. 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. The glaciers and rivers have removed the rest of the material and spread it out across the lowland plains or onto the sea floor. Updating list... 20 - 25 of 26 reviews. 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. 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. ... Impacts of an Alpine Fault Quake . Can't find 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 quickly became accepted as a notable feature of the geology of New Zealand, and by 1948 was included on standard geological maps. Horizontal movement of the Alpine Fault is about 30m per 1,000 years — very fast by global standards. In Newsletter, Response Planning. Image: LEARNZ. Elizabeth, our tour guide, was very knowledgeable and enthusiastic showing off this area of NZ and explaining how the tectonic plates work. "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 Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. But most dangers would not appear until after the Alpine Fault earthquake, Orchiston said. Tree ages in this entire region are therefore clustered around the times of major earthquakes. 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 Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. - Check out Tripadvisor members' 349 candid photos and videos of Alpine Fault Tours Although the Alpine Fault seems so obvious today, but it was not recognised until 1941 by … London, United Kingdom. 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. Seismicity decreases north of Bruce Bay at the Alpine fault and within a triangular region along the Alpine fault located between the Hope and Porters Pass fault zones. That's before satellite photographs or plate tectonics. 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. Alpine Fault virtual field trip . Alteration Along the Alpine Fault Helps Build Seismic Strain . It is a dominant feature of the South Island. A graphic shows an indicative line of the Alpine Fault in relation to Wanaka and Queenstown. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Alpine Fault Tours, Whataroa Picture: Touching the Alpine Fault! Postal Address: Home » Co-ordinated Planning and Partnerships Pay Off . Milford Sound is the most likely epicentre for a magnitude-8 earthquake on the Alpine Fault. The investigation found the mean interval between large earthquakes on the fault is 330 years and two thirds of the … The 2004 Boxing Day tsunami and the 2011 liquefaction of buildings in Christchurch were two past examples of secondary hazards, she said. In between earthquakes, the Alpine Fault is locked. 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. Forming the western edge of the Southern Alps, it is clearly visible from space. Things to do near Alpine Fault Tours. Selected filters. This is now most evident in the Southern Alps, formed by compression of the crust beside the Alpine Fault. 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. By Alice Lake-Hammond. The length of the rupture will be … 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. 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 Darfield earthquake had a magnitude of M7.1. 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. This demonstration allows you to go on a virtual field trip along the Alpine Fault and see some of the key outcrops. PHOTO: PROJECTAF8.CO.NZ “What we know about the Alpine Fault is that it tends to produce big earthquakes, roughly every 300 years,” Dr Orchiston said. 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. Spot the fault. Most New Zealanders alive today will still be alive when the Alpine Fault rips in a magnitude-8 earthquake, leading scientists say. Photo: RNZ / Veronika Meduna. Co-ordinated Planning and Partnerships Pay Off. 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. 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. Imagine what a magnitude-8 earthquake would do. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. It has ruptured four times in the last 900 years, resulting in earthquakes of around magnitude 8, and is now considered highly probable to go again in the next 50 years. Recent research by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8,000 years. The Alpine Fault is called a strike slip or transform fault. How often does the Alpine Fault rupture? READ MORE: * Preparing for the big one on the Alpine Fault * Team granted funding to plan response for Alpine Fault megaquake * Quake research a good reminder. The Alpine Fault runs 400km up the South Island, along the western edge of the Southern Alps. The Alpine Fault was inferred to continue south-west from Lake McKerrow along the northern Fiord-land Coast (see also Grindley, 1958). New Zealand, Kā Roimata o Hine Hukatere - Franz Josef Glacier, Likely rupture along a larger area of the fault (several hundreds of kilometres), It will last longer (hundreds of seconds rather than tens of seconds). Dr Caroline Orchiston explains the Alpine Fault and the damage the earthquake will have. It forms a boundary between the Pacific Plate and the Indo-Australian Plate . 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. 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. "I don't think the Alpine Fault will cause uplift in Marlborough; the land going up like it did in the Kaikōura earthquake," van Dissen said. In the North. Caroline Orchiston says the Alpine Fault is a "spectacular" fault. 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