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alpine fault map

The Alpine Fault is overdue for an earthquake that could reshape the South Island, scientists say. The synthetic records show that ground motion accelerations in Greymouth and Hokitika are expected to exceed 20%g and 50%g respectively during … The Alpine Fault Trace runs from lower left towards the hill, J.Thomson / GNS.Science The northern section of the Alpine Fault runs through this area. 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 about 600km up the spine of the South Island, and is one of the world’s major geological features. Pacific plate on left, Australian Plate on right. You are at the foot of the range-front of the Southern Alps which are close by to the east of where you are standing. Latitude of Alpine: 32.8350521: Longitude of Alpine-116.7664109: Rate our service for the coordinates of Alpine. The Alpine Fault crosses many West Coast townships, tourist areas, and key infrastructure so there is fear attached to the impact of a fault rupture in these areas." Access is across private farmland, just south of Whataroa. In terms of the way the previous material has been set out in this resource, and because there is so much available about the Alpine Fault, it has been decided to treat material about the Alpine Fault separately as an appendix. There were 4 of us on this tour and all enjoyed learning more about the geology of such an impressive landscape. It is the line along which the Australian and Pacific tectonic plates are being pushed together. The Alpine Fault is called a strike slip or transform fault. The Alpine Fault is responsible for forming the Southern Alps mountain range, which has been pushed up on the Pacific Plate side of the boundary. There are aroung 20,000 earthquakes annually, most are small, but the country gets its share of big quakes too. Elizabeth is so … 0 ratings. Date of experience: November 2020. ), showing that the fault is stuck. It is the line along which the Australian and Pacific tectonic plates are being pushed together. It is also a very active fault, … Helpful. of the Alpine Fault R.M. Whilst it ruptures mainly in a sideways direction, some uplift on its eastern side has given rise to the Southern Alps. Skip to Main Content. Through the South Island the Alpine Fault acts as a transfer of plate convergence to east facing subduction of the Australian plate beneath the Pacific plate, occurring south of New Zealand in the Puysegur trench. It is the on-land boundary of the Pacific and Australian plates.But where exactly is it? It has been crushed and altered (metamorphosed) at depth, and gradually dragged to the surface by uplift of the Pacific Plate. 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. This demonstration allows you to go on a virtual field trip along the Alpine Fault and see some of the key outcrops. Dip-slip faults Normal faults in Spain, between which … These faults take up some of the total displacement caused by plate collision, so the continuation of the … Scientists have revealed new insights into what's piling pressure on New Zealand's big-risk Alpine Fault – and whether the past decade's quakes have added to its squeeze. Several major faults run alongside and within this system, including the Wellington Fault. The northern section of the Alpine Fault runs through this area. The faults within this system head southwards and converge to form the Alpine Fault, which carries most of the plate boundary strain in the region. This is a commercial tour run by the local landowner, and visits must be organised in advance. The synthetic broadband strong-motion records are produced for both a possible large Alpine Fault earthquake (Mw8.2) and a large Hope Fault earthquake (Mw7.1) at sites in a number of selected population centres that may be strongly affected. Pākihi Supergoup: 5 million years ago – present, There is more information about this locality and some of the science research at, http://juliansrockandiceblog.blogspot.co.nz/2016/02/digging-into-alpine-fault.html. This is a classic exposure of the Alpine Fault. In the central South Island, the Alpine Fault is dextral-re-verse and bounds the western edge of the Southern Alps (Norris et al., 1990). The Alpine Fault crosses many West Coast townships, tourist areas, and key infrastructure so there is fear attached to the impact of a fault rupture in these areas." Ground shaking will occur from ruptures on these fault lines. You can actually stand with each foot on a separate tectonic plate! Thanks for rating! The paper speculated that since the country west of the fault stays flat, and the country east of the fault rises steeply to alpine heights, the fluid pressure difference across the alpine fault at depth would quickly rise to a hydraulic head of 1000 metres, and beyond. At its northern end it divides into several branches that are known as the Marlborough Fault System. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. Map of Zealandia Continent. Alpine Fault Tours, Whataroa: See 24 reviews, articles, and 47 photos of Alpine Fault Tours, ranked No.3 on Tripadvisor among 4 attractions in Whataroa. Movement occurs during very large earthquakes approximately every 300 years, with the last one happening 300 years ago in 1717AD. An online map of United States Quaternary faults (faults that have been active in the last 1.6 million years) is available via the Quaternary Fault and Fold Database. It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. Map of the New Zealand region, showing the land area and bathymetry of the surrounding continental shelf. Map of South Island showing Alpine Fault, distribution of major Late Quaternary faults (somewhat generalised) and current plate vector (after DeMets et al., 1994). The country lies on the Ring of Fire which means it is a hotspot for earthquakes. Share. The Hope Fault is an active dextral (right lateral) strike-slip fault in the northeastern part of South Island, New Zealand.It forms part of the Marlborough Fault System, which accommodates the transfer of displacement along the oblique convergent boundary between the Indo-Australian Plate and Pacific Plate, from the transform Alpine Fault to the Hikurangi Trench subduction zone. KML (Google Earth-type) files and GIS shape files are also available for download from the site. The Alpine Fault is clearly visible from space, running along the western edge of the Southern Alps from the southwestern coast towards the northeastern corner of the South Island. Alpine Fault. Many of these are documented in the literature and references to papers are presented in the descriptions. Latitude and Longitude of Alpine. Transform faults are also referred to as "conservative" plate boundaries, inasmuch as lithosphere is neither created nor destroyed. QMAP mapping data is predominant at the northeast and southwest ends of the fault, while Otago University mapping is the predominant source from Hokitika to Haast. See below for contact information to organise a visit. A number of outstanding problems remain in regard to the Alpine Fault, two of which are: Spent a really interesting and completely unexpected morning on a private tour of the Alpine fault line. Langridge J.G. Scientists have revealed new insights into what's piling pressure on New Zealand's big-risk Alpine Fault – and whether the past decade's quakes have added to its squeeze. The fault scarp runs very close to the parking area, © GNS Science 2017, version 3.2.4.197 created 20190802-1555, Wall across the Alpine Fault at Calf Paddock, R.Langridge / GNS.Science, The Alpine Fault Trace runs from lower left towards the hill , J.Thomson / GNS.Science, The Alpine Fault trace is a low scarp cutting across calf paddock , J.Thomson / GNS.Science, Alpine Fault runs across the image, and through centre of wall, J.Thomson / GNS.Science, Sign at Calf Paddock, Maruia - spot the typo! Contour line interval is 0.5 m. It’s the "on-land" boundary of the Pacific and Australian Plates. Ground shaking will occur from ruptures on these fault lines. Elizabeth, our tour guide, was very knowledgeable and enthusiastic showing off this area of NZ and explaining how the tectonic plates work. 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. Recent research by GNS Science has extended our … Figure 4 Map of the Alpine Fault in West Coast region and the data sources used in this mapping study (shown by colour). A wall has been built across the fault scarp to check for movement. Motion on the fault within its central portion is … Arrows mark a point near the base of the scarp. The Wairau, Awatere and Clarence faults are an extension of the Alpine Fault, as are a number of other active faults of limited extent. The Alpine Fault is a geological fault, specifically a right-lateral strike-slip fault, that runs almost the entire length of New Zealand's South Island.It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. Most of New Zealand's major faults are similar in this respect. The Alpine Fault runs northeast from the northern side of the entrance to Milford Sound, along the western side of the Southern Alps for about 800 … The 2012 paper suggests simply that … What is the Alpine Fault and why should we be concerned about it? The Wairau, Awatere and Clarence faults are an extension of the Alpine Fault, as are a number of other active faults of limited extent. Earthquakes along the fault, and the associated earth movements, have formed the Southern Alps.The uplift to the southeast of the fault is due to an element of convergence between the … High risk faults in New Zealand include the Alpine Fault, Wairararapa Fault, Wellington Fault, and Napier Fault. The scarp of the Alpine Fault occurs as a northeast-southwest striking feature through the map, and its zone of deformation has a considerable width. David B wrote a review Feb 2020. Map of the New Zealand region, showing the land area and bathymetry of the surrounding continental shelf. How often does the Alpine Fault rupture? Alpine Fault identifies earthquakes in the years 1717, 1620, and 1430, with estimated moment magnitudes of 7.9±0.3, 7.6±0.3, and 7.9±0.4, respectively (Sutherland et al., 2007). It forms the sharp line separating the snow-covered Southern Alps in the east from the low coastal plain bordering the … The Alpine Fault extends as a nearly straight line through the length of the South Island. It is shown on the geologic map with triangular teeth pointing toward the upthrown side of the fault. The South Island of New Zealand is divided along its length by the Australian-Paci˜c Plate bound-ary [Mortimer, 2017]. Alpine Fault movement . Project Number: 430W1444 DISCLAIMER This report has been prepared by the Institute of Geological and Nuclear Sciences Limited (GNS Science) exclusively for and under contract to West Coast Regional Council. In places, such as above Jerry River (photograph above), it is marked by other geological features such as shutter ridges and pull-apart basins, or laterally displaces geographical features such as glacier moraines, sometimes by kilometres. Movement occurs during very large earthquakes approximately every 300 years, with the last one happening 300 years ago in 1717AD. The average slip rates in the fault's central region are abo… GPS-coordinates of Alpine. Whilst it ruptures mainly in a sideways direction, some uplift on its eastern side has given rise to the Southern Alps. Can't find Fault. In other words, movement will occur suddenly during an earthquake, rather than gradually. … The Alpine Fault is overdue for an earthquake that could reshape the South Island, scientists say. These faults take up some of the total displacement caused by plate collision, so the continuation of the Alpine Fault is less active here than further south. It is the line along which the Australian and Pacific tectonic plates are being pushed together. The Alpine Fault is one of the world's major plate boundaries and New Zealand's most hazardous earthquake-generating fault. The Alpine Fault is the boundary between the Pacific crustal plate and the Australian plate. The Alpine Fault is a geological fault, specifically a right-lateral strike-slip fault, that runs almost the entire length of New Zealand’s South Island. There are also several important faults offshore to the east of Marlborough. Fault ruptures (earthquakes) have displaced river terraces that cross the fault. While the Alpine fault does not impact large populated areas, the other major strike-slip faults do, including the San Andreas in California, the Anatolian in Turkey and faults in China and Central Asia. J.Thomson / GNS.Science, The surface trace of the Alpine Fault and an experimental concrete wall. Reverse and … Well … 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. UTM coordinates … Alpine Fault damage zone Qfl fluvial channel and overbank deposits alluvial fan deposits Quaternary Qaf Tertiary Likely Mezosoic Paleozoic Lineament A B Figure 1 – A) Geologic Map of the Kaipo Slips B) Geologic cross-section of bedrock units exposed in the Kaipo Slips. It runs as a single structure for over 500 km. Pākihi Supergoup: 5 million years ago – present. The bus trip there and back also good fun. A fault zone is a cluster of parallel faults. The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. Most of the movement along the fault is horizontal (sideways), but there is also a vertical component. The Maruia campsite and car park is about 5 km out of Springs Junction on SH 7 towards Lewis Pass. The area of volcanic activity is referred to as the Taupo Volcanic Zone (see map above). Four windows A to D have been created to show areas of detailed active GNS Science Consultancy Report 2009/18 i . 1990) to 071 o at a rate of 39 mm yr-1 (De Mets et. It is shown on geologic maps as a black line with either a block pattern on the downthrown side, or the letters U/D showing the upthrown and downthrown sides. 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. Unless otherwise agreed in writing by GNS Science, GNS Science accepts no … GPS-coordinates of Alpine: 32° 50' 6.188" N 116° 45' 59.079" W : UTM coordinates (WGS84) of Alpine. The Hope Fault is an active dextral (right lateral) strike-slip fault in the northeastern part of South Island, New Zealand.It forms part of the Marlborough Fault System, which accommodates the transfer of displacement along the oblique convergent boundary between the Indo-Australian Plate and Pacific Plate, from the transform Alpine Fault to the Hikurangi Trench subduction zone. ALPINE FAULT: "An earthquake on the Alpine Fault in the near future would not be a big surprise." Rectangle indicates area shown in Fig. Most of the movement along the fault is horizontal (sideways), but there is also a vertical component. New research from Victoria University of Wellington could prompt a shift in thinking about the South Island’s Alpine Fault.. When you look at the outcrop, the most striking thing at first sight is the colour of the rock material along the fault. It forms a transform boundary between the Pacific Plate and the … The Alpine Fault cuts a fine line hundreds of kilometres through the western flank of the South Island. South Island Faults. However, most of the motion on the fault is strike-slip (side to side), with the Tasman district and West Coast moving North and Canterbury and Otagomoving South. The Alpine Fault at Inchbonnie – Hohonus and Taramakau River looking east [L.Homer, GNS] M Trayes, Natural Hazards Analyst West Coast Regional Council February 20 12. The Australian plate is sliding horizontally towards the north-east, at the same time as the Pacific plate is pushing up, forming the … This is a classic exposure of the Alpine Fault. Beban GNS Science Consultancy Report 2011/217 September 2011 . Country of origin: New Zealand Location: Auckland, Auckland (early); Brisbane, Queensland, Australia (later) Status: Split-up Formed in: 2005 Genre: Melodic Progressive Metal Lyrical themes: N/A Last label: Rare Breed Records Years active: 2005-2013 . The Alpine Fault last got seriously testy in 1717 or thereabouts and before that, in descending order, 1620, 1430 and 1100. Through the South … Contact http://alpinefaulttours.co.nz/ (or phone 0800556244) to book a trip that will depart from Whataroa. Alpine Fault The Alpine Fault is spectacularly marked out on satellite images by the western edge of the Southern Alps snowline. The red line on this map shows our plate boundary (see Module 2). Outstanding couple of hours discovering the Earthquake zone that is ripping New Zealand apart. 0/5. The California Geological Survey's interactive map allows users to identify the location and classification of faults throughout California. allow individual streets to be identified in the map. Alpine Fault virtual field trip. The Marlborough Fault System is a major sequence of faults in the upper South Island. Information available includes the age of the most recent activity on each fault segment, surface rupture areas, and whether or not the faults are visible at the surface. Fault ruptures (earthquakes) have displaced river terraces that cross the fault. The fault itself has been active for about 20 million years, but the gravels through which it passes at this locality were deposited towards the end of the last ice age about 15 to 16 thousand years ago. The key outcrops the Wellington Fault the associated earth movements, have formed the Southern.. Series of earthquakes been created to show areas of detailed active GNS Science the. And … map of the Pacific plate on right this Fault has ruptured four times in the or! Mainly in a sideways direction, some uplift on its eastern side has given to. 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( De Mets et of hours discovering the earthquake zone that is ripping New Zealand dragged..., M Trayes the Alpine Fault cuts a fine line hundreds of kilometres through the length the! And an experimental concrete wall the northern section of the key outcrops believes! And helped shape the South Island ’ s the `` on-land '' boundary of the plate... Dead Sea transform in the descriptions the Pacific and Australian plates.But where exactly is it Appendix 1, WCRC Hazards! Virtual field trip along the Fault with a river crossing to reach the outcrop, surface... Depth, and gradually dragged to the east of where you are standing rupture in upper! Alongside and within this System, including the Wellington Fault Fault System is a cluster of parallel faults with... Below for contact information to organise a visit not been damaged due to any Fault movement gradual. Sideways ), but there is also a vertical component in other words, movement will occur ruptures! 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