The goal of Project AF8 was to create a safer and stronger South Island, through better preparation, as the Alpine Fault had the potential to impact the whole island, and beyond, Orchiston said. Even the trees that have survived an earthquake will bear the scars of the shaking, in the form of periods of poor growth recorded in their rings. How often does the Alpine Fault rupture? We've known about the Alpine Fault for around 80 years. Image: LEARNZ. 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. Your News is the place for you to save content to read later from any device. "It was scientifically credible, but also it provided probably the most significant test for Civil Defence around the South Island," Orchiston said. Alpine Fault virtual field trip . Image: NASA. South Island and those that are Cl1!t off to the north-west by the Alpine Fault at the south end of the island. This is now most evident in the Southern Alps, formed by compression of the crust beside the Alpine Fault. Movement along this fault has uplifted the Southern Alps and caused large earthquakes. Whataroa Tourism; Whataroa Hotels; Bed and Breakfast Whataroa; Whataroa Holiday Rentals; Flights to Whataroa; Whataroa Restaurants; Whataroa Attractions; Whataroa Travel Forum Affect a much larger area than earthquakes such as the Darfield earthquake. Recent research by GNS Science has extended our knowledge of the Alpine fault earthquake record back through the past 8,000 years. Dr Caroline Orchiston explains the Alpine Fault and the damage the earthquake will have. Movement along this fault has uplifted the Southern Alps and produced large 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 a spectacular fault, it's more than 800 kilometres long at its full extent," Orchiston said. 01donala. 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 team developed its co-ordinated response discussions around a south-to-north earthquake as it was most likely, 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.". The Alpine Fault runs for over 800km up the spine of the South Island. The glaciers and rivers have removed the rest of the material and spread it out across the lowland plains or onto the sea floor. Milford Sound is the most likely epicentre for a magnitude-8 earthquake on the Alpine Fault. Snow on the mountains of the Pacific plate contrasts with the lower land of the Australian plate. The Alpine Fault. The Alpine Fault travels 800 kilometres from Milford Sound to the Marlborough Sounds. 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. But most dangers would not appear until after the Alpine Fault earthquake, Orchiston said. 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. Brilliant tour, unique occurance, highly informative, very friendly guides. The lack of a historical record for the Alpine Fault means that we must instead examine the geological record left by past ruptures. You will visit Franz Josef which sits above the Alpine Fault on the Geohazards virtual field trip. On the go and no time to finish that story right now? 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. It forms a boundary between the Pacific Plate and the Indo-Australian Plate . Reviewed 17 December 2016 via mobile . 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. 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 believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. Spent a really interesting and completely unexpected morning on a private tour of the Alpine fault line. No matter where you were in the South Island, you would feel at least a magnitude-4 or 5 quake, she said. Image: LEARNZ. 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. "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 400km up the South Island, along the western edge of the Southern Alps. The alpine fault is located in New Zeland. Caroline Orchiston says the Alpine Fault is a "spectacular" fault. Selected filters. Postal Address: The seismicity rate of the Alpine fault is low but comparable to locked sections of the San Andreas fault, with large earthquakes expected. The trenches, each of about 20m-long will allow the geologists to take photos and make detailed drawings of the recently deposited strata to a depth of 2m. An earthquake on the Alpine Fault sweeps away old forest and creates large tracts of clear ground for new vegetation to spring up upon. 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. 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 … Studies at Alpine Fault excavation sites showed a large earthquake occurred on the fault every 300 years or so, with the last one occurring in 1717. 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. ... Impacts of an Alpine Fault Quake . The 2004 Boxing Day tsunami and the 2011 liquefaction of buildings in Christchurch were two past examples of secondary hazards, she said. Kiwis needed to be concerned about an Alpine Fault quake, as it would likely "happen in the lifetime of many New Zealanders", Orchiston said. Updating list... 20 - 25 of 26 reviews. 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. That's before satellite photographs or plate tectonics. Whataroa Tourism; Whataroa Accommodation; Whataroa Bed and Breakfast; Whataroa Holiday Rentals; Whataroa Holiday Packages; Whataroa Flights; Whataroa Restaurants 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). It passes offshore in South Westland (bottom left), and is responsible for … 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. 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. London, United Kingdom. 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 movement. 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 7.8-magnitude Kaikōura earthquake ripped road and rail apart. The Bank of New Zealand has received a warning from the Commerce Commission over its likely failure to meet responsible lending requirements … Boat Tours in Whataroa; Bus Tours in Whataroa; Walking Tours in Whataroa Awesome experience. Things to do near Alpine Fault Tours. Elizabeth, our tour guide, was very knowledgeable and enthusiastic showing off this area of NZ and explaining how the tectonic plates work. In between earthquakes, the Alpine Fault is locked. * 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 … 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. 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. Most New Zealanders alive today will still be alive when the Alpine Fault rips in … The Alpine Fault is called a strike slip or transform fault. Movement along the Alpine Fault has uplifted the Southern Alps. Although the Alpine Fault seems so obvious today, but it was not recognised until 1941 by two … Photo: RNZ / Veronika Meduna. 8.2b). "But earthquakes are just the start of a process that goes on for many years, decades after a big earthquake of this scale. The length of the rupture will be … Home » Co-ordinated Planning and Partnerships Pay Off . This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Although the Alpine Fault seems so obvious today, but it was not recognised until 1941 by … 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. Earthquakes along the fault have formed the Southern Alps . The length of the rupture will be … The Alpine Fault is where two great tectonic plates (the Pacific and Australian) plates collide. 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. 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. Scroll down to discover how! "The intensity of course depends on the type of ground you're standing on and how far away you are from the Alpine Fault. Image: LEARNZ. 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 . Filter. Read more. 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. 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 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 runs for about 600km up the spine of the South Island, and is one of the world’s major geological features. The study aims to inform locals and tourists of the significant risk to the area should the Alpine faultline go off. In the North. 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. The Darfield earthquake had a magnitude of M7.1. Helpful. The fault mover 30mm a year! This is based on how regularly it has ruptured in the past. You can pick out the line of the Alpine Fault on this satellite image of the South Island. There have been no major earthquakes on the main portion of it. Christchurch 8141, “Hands on Alpine Fault learnings plus a bush short walk in Whataroa ... Read reviews in English Go back. 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. 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. Most New Zealanders alive today will still be alive when the Alpine Fault rips in a magnitude-8 earthquake, leading scientists say. Camp Glenorchy project manager Steve Hewland talks about the resilience factors of the newly-built camping ground near Queenstown. As with many natural systems, there was a spread of intervals with the longest being about 510 years and the shortest about 140 years. By Alice Lake-Hammond. 2017 is the 300th anniversary of the last major rupture on the 850-km long Alpine Fault. 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 … "When we think of earthquakes, our mind goes straight to shaking, straight to the panic we feel when the ground moves," Orchiston said. 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. GNS Science earthquake geologist Russ van Dissen, who also presented at the conference, talked about the tsunami risk after an Alpine Fault quake. 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. At the other end of the straight line the Alpine Fault passes through the Lewis Pass Scenic Reserve. 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, 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. The Alpine Fault, running up the South Island, has an earthquake nearly every 300 years. Horizontal movement of the Alpine Fault is about 30m per 1,000 years — very fast by global standards. 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 Otago University study said a 200m wide 'fault avoidance zone' should be created to prevent further development in the area. . The Alpine Fault marks the boundary of the Pacific and Australian Plates. 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 . 1. The investigation found the mean interval between large earthquakes on the fault is 330 years and two thirds of the … 0. 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. . A project set to drill 1.3 kilometres into the Alpine Fault has been called off 400 metres shy of its goal. There were 4 of us on this tour and all enjoyed learning more about the geology of such an impressive landscape. 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. How do you think you would be affected by a rupture of the Alpine Fault? Imagine what a magnitude-8 earthquake would do. "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. "What we're seeing is a very long history of seismic activity on the fault, which is a really unique record," Orchiston 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 Southern Alps have been uplifted over 20 kilometres over 12 million years but erosion has kept their height below 4,000 metres. In the last 12 million years the Southern Alps have been uplifted by an amazing 20 kilometres, but erosion keeps their height below 4000m. A graphic shows an indicative line of the Alpine Fault in relation to Wanaka and Queenstown. It’s the part of the active boundary between the Pacific and Australian tectonic plates where they intersect on land. Spot the fault. This NASA satellite image of the South Island shows the Alpine Fault as a line along the western edge of the Southern Alps. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. The Ministry of Civil Defence approved a grant of $680,000 over three years for Project AF8, with work starting in 2016. Share. Co-ordinated Planning and Partnerships Pay Off. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. When the Alpine Fault next ruptures it is likely to produce an earthquake with a magnitude of around 8. 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. 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. 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 marks the boundary of the Pacific and Australian Plates. David B wrote a review Feb 2020. "We call those long-term issues secondary hazards and these hazards can be more extreme than the earthquake itself.". The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. Alpine Fault Tours, Whataroa Picture: Touching the Alpine Fault! Tree ages in this entire region are therefore clustered around the times of major earthquakes. 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 rupture will produce one of the biggest earthquakes since European settlement of New Zealand, and it will have a major impact on the lives of many people. Dr Caroline Orchiston explains the Alpine Fault and the damage the earthquake will have. 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. The rapid uplift also means that faulted rock from deep down has been brought to the surface, and can be studied by scientists. Posted June 9, 2020. Fault line . The geological record shows the Alpine Fault ruptures, on average, just under every 300 years. 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. 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. 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. 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. 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 push together. 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. There is no way of predicting exactly when an earthquake will occur. 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. Whataroa Tourism; Whataroa Hotels; Whataroa Bed and Breakfast; Whataroa Holiday Rentals; Whataroa Packages; Flights to Whataroa; Whataroa Restaurants; Whataroa Attractions How often does the Alpine Fault rupture? "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 splits the South Island in two, and forms the abrupt western edge of the Southern Alps. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. Alteration Along the Alpine Fault Helps Build Seismic Strain . A number of outstanding problems remain in regard to the Alpine Fault, two of which are: 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. Approximate rupture dates are 1717AD, 1620 AD, 1450 AD, and 1100 AD. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. - Check out Tripadvisor members' 349 candid photos and videos of Alpine Fault Tours 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. 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. 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. 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. Things to do near Alpine Fault Tours. Forming the western edge of the Southern Alps, it is clearly visible from space. This demonstration allows you to go on a virtual field trip along the Alpine Fault and see some of the key outcrops. PO Box 13 678, 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. Athy 19 contributions 4 helpful votes. Scientists believe the Alpine Fault has a high probability (estimated at 30%) of rupturing in the next 50 years. Forming the western edge of the Southern Alps, it is clearly visible from space. 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. The Alpine Fault runs for about 600km along the west of the Southern Alps. The Alpine Fault is a geological fault that runs entirely through New Zealand's South Island. A south-to-north earthquake is most likely along the South Island's 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 Alpine Fault runs for about 600km up the spine of the South Island, and is one of the world’s major geological features. Date of experience: November 2020. Otago University research fellow Caroline Orchiston detailed the group's work at a public meeting in Blenheim on Wednesday. The massive Alpine Fault is due for another big earthquake and scientists have been drawing up a scenario of what the devastation would look like. 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. It is a dominant feature of the South Island. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. The Southern Alps have been formed over millennia by upthrust from successive earthquakes on the Alpine Fault. The Alpine Fault was inferred to continue south-west from Lake McKerrow along the northern Fiord-land Coast (see also Grindley, 1958). Motion on the fault is in a direction that plunges approximately 22°, indicating that the fault in … 2017 is the 300th anniversary of the last major rupture on the 850-km long Alpine Fault. "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.". Can't find Fault. 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. Is clearly visible from space the crust beside the Alpine Fault on the Alpine Fault means faulted. 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