UTM coordinates … 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. Latitude and Longitude of Alpine. Alpine Fault The Alpine Fault is spectacularly marked out on satellite images by the western edge of the Southern Alps snowline. Alpine Fault movement . High risk faults in New Zealand include the Alpine Fault, Wairararapa Fault, Wellington Fault, and Napier Fault. The Alpine Fault cuts obliquely across the South Island, forming the western edge of … 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. What is the Alpine Fault and why should we be concerned about it? There are also several important faults offshore to the east of Marlborough. How often does the Alpine Fault rupture? 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. Map of the New Zealand region, showing the land area and bathymetry of the surrounding continental shelf. Contour line interval is 0.5 m. David B wrote a review Feb 2020. It is shown on the geologic map with triangular teeth pointing toward the upthrown side of the fault. 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 … 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. A number of outstanding problems remain in regard to the Alpine Fault, two of which are: The Maruia campsite and car park is about 5 km out of Springs Junction on SH 7 towards Lewis Pass. 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. 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. 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). Athy 19 contributions 4 helpful votes. The average slip rates in the fault's central region are abo… 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." 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 Alpine Fault runs for about 600km up the spine of the South Island, and is one of the world’s major geological features. 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. It has been crushed and altered (metamorphosed) at depth, and gradually dragged to the surface by uplift of the Pacific Plate. The Alpine Fault is the dominant structure defining the Australian-Pacific plate boundary in the South Island of New Zealand. You can pick out the line of the Alpine Fault on this satellite image of the South Island. As you can see it has not been damaged due to any fault movement or gradual creep (as of April 2016! Recent research by GNS Science has extended our … Can't find Fault. This is a classic exposure of the Alpine Fault. The Pacific Plate and Indo-Australian Plate boundary forms the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island and comes onshore as the Alpine Fault just north of Milford Sound. They have been pushed up by many and continued earthquakes occurring on the fault. 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. 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. There is an interactive map application to view the faults online and a separate database search function. 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 northern section of the Alpine Fault runs through this area. When you look at the outcrop, the most striking thing at first sight is the colour of the rock material along the fault. 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 Alpine Fault last got seriously testy in 1717 or thereabouts and before that, in descending order, 1620, 1430 and 1100. 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. Skip to Main Content. Date of experience: November 2020. 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. Fault ruptures (earthquakes) have displaced river terraces that cross the fault. 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. 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. You can actually stand with each foot on a separate tectonic plate! J.Thomson / GNS.Science, The surface trace of the Alpine Fault and an experimental concrete wall. 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 length of the rupture will be … At its northern end it divides into several branches that are known as the Marlborough Fault System. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. The Alpine Fault is called a strike slip or transform fault. Movement occurs during very large earthquakes approximately every 300 years, with the last one happening 300 years ago in 1717AD. © GNS Science 2017, version 3.2.4.197 created 20190802-1555, Alpine Fault at Gaunt Creek, J.Thomson / GNS Science, Deep Fault Drilling Project Observatory container, J.Thomson / GNS Science, Information panel at Gaunt Creek, J.Thomson / GNS Science, The top of the Australian Plate seen from above Gaunt Creek, J.Thomson / GNS Science, Pointing out the Alpine Fault at Gaunt Creek, J.Thomson / GNS Science, Alpine Fault cataclasite at Gaunt Creek, J.Thomson / GNS Science, Pointing at the fault. allow individual streets to be identified in the map. Outstanding couple of hours discovering the Earthquake zone that is ripping New Zealand apart. 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. Convergence on the plate boundary along the Alpine Fault ranges from a vector trending 084° at a rate of 45 mm yr-1 (Norris et. It is the line along which the Australian and Pacific tectonic plates are being pushed together. 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 . KML (Google Earth-type) files and GIS shape files are also available for download from the site. 0 ratings. A wall has been built across the fault scarp to check for movement. However ... such as the Dead Sea Transform in the Middle East or the Alpine Fault in New Zealand. The Alpine Fault is overdue for an earthquake that could reshape the South Island, scientists say. 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 a geological fault, known as a right-lateral strike-slip fault, that runs almost the entire length of New Zealand's South Island. 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. Visits involve a bus ride along a farm track and a short walk with a river crossing to reach the outcrop. The alpine fault earthquake will alter tectonic stress distribution, and other faultlines may rupture in the days or years following it. A reverse fault (if steeply dipping) or thrust fault (if shallowly dipping) is a fault where the fault plane dips toward the upthrown block. Click here to use the California fault activity map. Reverse and … The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. Map of Zealandia Continent. Snow on the mountains of the Pacific plate contrasts with the lower land of the Australian plate. The Alpine Fault The Alpine Fault, marked here by the yellow line, stretches nearly the entire length of Te Waipounamu, the South Island of Aotearoa New Zealand. The effect of fluid differentials on an Alpine Fault earthquake is obviously significant but presently unquantified. 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. The Alpine Fault marks the boundary of the Pacific and Australian Plates. 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. Movement along this fault has uplifted the Southern Alps and helped shape the South Island landscape we know today. Unless otherwise agreed in writing by GNS Science, GNS Science accepts no … 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. It is worth looking at the wall to see how it has stood the test of time. This is a classic exposure of the Alpine Fault. 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). Figure 4 Map of the Alpine Fault in West Coast region and the data sources used in this mapping study (shown by colour). J.Thomson / GNS, Alpine Fault is at the base of the greenish grey cataclasite layer, J.Thomson / GNS Science. The Alpine Fault cuts a fine line hundreds of kilometres through the western flank of the South Island. 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. 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. New research from Victoria University of Wellington could prompt a shift in thinking about the South Island’s Alpine Fault.. 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. The 2012 paper suggests simply that … 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. Pākihi Supergoup: 5 million years ago – present. 0/5. 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. A fault trace is also the line commonly plotted on geologic maps to represent a fault. Map of South Island showing Alpine Fault, distribution of major Late Quaternary faults (somewhat generalised) and current plate vector (after DeMets et al., 1994). 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. ©NASA The Alpine Fault, which runs for about 600km up the spine of the South Island, is one of the world’s major geological features. It runs as a single structure for over 500 km. A fault zone is a cluster of parallel faults. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. 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. 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 . Most of the movement along the fault is horizontal (sideways), but there is also a vertical component. The Wairau, Awatere and Clarence faults are an extension of the Alpine Fault, as are a number of other active faults of limited extent. Thanks for rating! Ground shaking will occur from ruptures on these fault lines. Map of the New Zealand region, showing the land area and bathymetry of the surrounding continental shelf. Share. 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. 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. The Marlborough Fault System is a major sequence of faults in the upper South Island. In other words, movement will occur suddenly during an earthquake, rather than gradually. The Alpine Fault is the boundary between the Pacific crustal plate and the Australian plate. 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! of the Alpine Fault R.M. It is the on-land boundary of the Pacific and Australian plates.But where exactly is it? Because the Alpine fault begins so cleanly, Furlong believes it can tell us something about strike-slip faults in general. 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. Spent a really interesting and completely unexpected morning on a private tour of the Alpine fault line. South Island Faults. Most of New Zealand's major faults are similar in this respect. There were 4 of us on this tour and all enjoyed learning more about the geology of such an impressive landscape. Beban GNS Science Consultancy Report 2011/217 September 2011 . Whilst it ruptures mainly in a sideways direction, some uplift on its eastern side has given rise to the Southern Alps. Contact http://alpinefaulttours.co.nz/ (or phone 0800556244) to book a trip that will depart from Whataroa. 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. Earthquakes along the fault, and the associated earth movements, have formed the Southern Alps. 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." Whilst it ruptures mainly in a sideways direction, some uplift on its eastern side has given rise to the Southern Alps. Ground shaking will occur from ruptures on these fault lines. Rectangle indicates area shown in Fig. Alpine Fault. Well … GPS-coordinates of Alpine. The synthetic records show that ground motion accelerations in Greymouth and Hokitika are expected to exceed 20%g and 50%g respectively during … It is also a very active fault, … At its northern end it divides into several branches that are known as the Marlborough Fault System. The uplift to the southeast of the fault is due to an element of convergence between … … 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. The Wairau, Awatere and Clarence faults are an extension of the Alpine Fault, as are a number of other active faults of limited extent. 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. The country lies on the Ring of Fire which means it is a hotspot for earthquakes. 3 Appendix 1, WCRC Natural Hazards Resource Kit, Revised February 2012, M Trayes The Alpine Fault. Elizabeth is so … The Alpine Fault extends as a nearly straight line through the length of the South Island. It forms a transform boundary between the Pacific Plate and the … State of California. Elizabeth, our tour guide, was very knowledgeable and enthusiastic showing off this area of NZ and explaining how the tectonic plates work. Pacific plate on left, Australian Plate on right. The Alpine Fault is one of the world’s major geological features. The Alpine Fault. Several major faults run alongside and within this system, including the Wellington Fault. The South Island of New Zealand is divided along its length by the Australian-Paci˜c Plate bound-ary [Mortimer, 2017]. The Alpine Fault. The Australian plate is sliding horizontally towards the north-east, at the same time as the Pacific plate is pushing up, forming the … This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. The red line on this map shows our plate boundary (see Module 2). Fault ruptures (earthquakes) have displaced river terraces that cross the fault. Figure 4 Map of the Alpine Fault in West Coast region and the data sources used in this mapping study (shown by colour). GPS-coordinates of Alpine: 32° 50' 6.188" N 116° 45' 59.079" W : UTM coordinates (WGS84) of Alpine. Read more. Alpine Fault which give us some measure of what we might be in for when the predicted large event occurs. Dip-slip faults Normal faults in Spain, between which … Transform faults are also referred to as "conservative" plate boundaries, inasmuch as lithosphere is neither created nor destroyed. Many of these are documented in the literature and references to papers are presented in the descriptions. Normally no particular hazard unless there is an Alpine Fault rupture! A wall has been built across the fault scarp to check for movement. 6. slip vector is oriented approximately 20 to the trace of the fault, resulting in components of 35.5 mm/yr parallel and 10 mm/yr perpendicular to the Alpine Fault. It is the line along which the Australian and Pacific tectonic plates are being pushed together. Turning inland, the Alpine Fault runs to a point near the Lewis Pass, travels northwards then frays into four main faults that extend to the east coast. Through the South … There are also several important faults offshore to the east of Marlborough. Introduction: Although the Alpine Fault has the potential to cause catastrophic damage on the West Coast, and … … Alpine Fault virtual field trip. 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