Nabelek, John L. Abstract. In the south of the Island, it joins the east-directed Fiordland subduction zone while in the north, it splits into several strands that link with the west-directed North Island subduction zone. 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. [3], The Pacific Plate has the distinction of showing one of the largest areal sections of the oldest members of seabed geology being entrenched into eastern Asian oceanic trenches. [citation needed], In the south-west, the Pacific Plate has a complex but generally convergent boundary with the Indo-Australian Plate, subducting under it north of New Zealand forming the Tonga Trench and the Kermadec Trench. Each module ends with a quiz to test students learning. You can actually stand with each foot on a separate tectonic plate! It includes an oceanic transform (the Macquarie Ridge), two oppositely verging subduction zones (Puysegur and Hikurangi), and a transpressive continental transform, the Alpine Fault through South Island, New Zealand. Snow on the mountains of the Pacific plate contrasts with the lower land of the Australian plate. You can pick out the line of the Alpine Fault on this satellite image of the South Island. [4] Bird considers them to be unconnected. AF8 [Alpine Fault Magnitude 8] is an award-winning programme of scientific modelling, response planning and community engagement designed to build a collective resilience and preparedness to the next Alpine Fault earthquake event. Take a tour along the Alpine Fault, Aotearoa New Zealand’s on-land plate boundary and one of the longest natural straight lines in the world! https://tectonics-etc.blogspot.com/2011/04/alpine-fault.html The southern part of Zealandia, which is to the east of this boundary, is the plate's largest block of continental crust. In the region of New Zealand, the 3000 km long Australia-Pacific plate boundary extends from south of Macquarie Island to the southern Kermadec Island chain. Take a tour of Aotearoa New Zealand’s plate boundary, starting with the earth’s structure, tectonic plates, the Pacific Ring of Fire. The Alpine Fault is one of the world's major plate boundaries and New Zealand's most hazardous earthquake-generating fault. The Pacific Plate is an oceanic tectonic plate that lies beneath the Pacific Ocean. Answer to: Is the Alpine Fault convergent, divergent, or transform? The northern side is a convergent boundary subducting under the North American Plate forming the Aleutian Trench and the corresponding Aleutian Islands. The Alpine Fault, which runs for about 600km up the spine of the South Island, is one of the world’s major geological features. The Alpine Fault is one of the world's most intensively studied faultlines. It’s the "on-land" boundary of the Pacific and Australian Plates. Teacher Guide summarises the learning modules, shows you how to navigate through StoryMaps, details how the modules align to the New Zealand Curriculum and provides some technical tips to get you started. Event 3- Seafloor Spreading Location Six Alpine Fault Transform Boundary 5 Event 1- Volcanoes 20 Event 2- Island Spreading Conclusion: Your conclusion will include a summary of the lab results and an interpretation of the results. The type of plate boundary at the Alpine Fault is a transform boundary. AF8 aims to increase awareness, enable conversation and build societal preparedness to natural hazard events in the South Island. The type of plate boundary at the Alpine Fault is a transform boundary. The Alpine Fault is called a strike slip or transform fault. Please note: The What’s On Our Plates? It’s the "on-land" boundary of the Pacific and Australian Plates. Take a tour along the Alpine Fault, Aotearoa New Zealand’s on-land plate boundary and one of the longest natural straight lines in the world! The Pacific Plate is almost entirely oceanic crust, but it contains some continental crust in New Zealand, Baja California, and coastal California. Then explore where the Australian and Pacific plates meet. A 60-strong team of geologists and drillers has set up a drill site in a cow paddock in the Whataroa Valley, north of Franz Josef Glacier, to drill deep into the Alpine Fault. It is widely recognised that the pioneering work of Harold Wellman, a surveyor, geologist, gold miner and intrepid explorer, revealed the large plate boundary fault in the South Island of New Zealand – the Alpine Fault. Spot the fault. What’s On Our Plates? To watch a video of how the plate boundary has changed over millions of years click here The Hikurangi Trough marks the collision boundary to the east of the North Island, and is where oceanic lithosphere (the Pacific Plate) descends beneath the North Island as a huge inclined slab. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. The south-eastern side is a divergent boundary with the Nazca Plate forming the East Pacific Rise. In the simple, introductory textbook explanation, the Alpine Fault plate boundary system through South Island, New Zealand is simply a "San Andreas-like continental transform that links two subduction zones. EARLIER CONCERN OVER IMPACT ON ALPINE 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. Transform Plate Boundaries are locations where two plates slide past one another. The fracture zone that forms a transform plate boundary is known as a transform fault. Although predominantly associated with subduction zones, tremor also occurs along the deep extension of the strike-slip San Andreas Fault. Geologists drilling deep into the Alpine Fault are hoping to understand what goes on before a major plate boundary fault ruptures in an earthquake. LEITNER ETAL. It forms the sharp line separating the snow-covered Southern Alps in the east from the low coastal plain bordering the Tasman Sea in the west. [5], The north-eastern side is a divergent boundary with the Explorer Plate, the Juan de Fuca Plate and the Gorda Plate forming respectively the Explorer Ridge, the Juan de Fuca Ridge and the Gorda Ridge. A geologic map of the Pacific Ocean seabed shows not only the geologic sequences, and associated Ring of Fire zones on the ocean's perimeters, but the various ages of the seafloor in a stairstep fashion, youngest to oldest, the oldest being consumed into the Asian oceanic trenches. is a set of multimedia learning modules designed to enable anyone to explore Aotearoa New Zealand’s active plate boundary online, including the Alpine Fault and Hikurangi subduction zone. Visible from space, it marks the boundary between the Pacific and Australian crustal plates … In between the Hikurangi Subduction Zone and the Alpine Fault is a broad area of complex active faults, called the Marlborough Fault System. learning modules, with more coming soon. Generally the fault has a simple straight trace, striking ca. The What’s On Our Plates? What’s On Our Plates? The San Andreas fault of California is a prime example of a continental transform boundary; others are the North Anatolian fault of northern Turkey, the Alpine fault crossing New Zealand, the Dead Sea rift in the Middle East, the Queen Charlotte Islands fault off western Canada, and the Magellanes-Fagnano fault system of South America. The Alpine fault is the Pacific-Australian plate boundary in the South Island of New Zealand. Langridge said researchers in California and New Zealand have a long history of earthquake science collaboration and are learning from each other about the treatment of active faults and fault segmentation for seismic hazard models. Most transform faults are found in the ocean basin and connect offsets in the mid-ocean ridges. Find out how it was discovered and learn what science can tell us about Alpine Fault earthquakes. At 103 million km2 (40 million sq mi), it is the largest tectonic plate. We recommend using Google Chrome, the maps will not work in Internet Explorer. There are currently three What’s On Our Plates? Due to its relative geometric simplicity, high slip rate, and quasi-regular earthquake recurrence, the AF is a paradigm for characterizing “ideal” plate boundary behavior. The Alpine Fault is the dominant structure defining the Australian-Pacific plate boundary in the South Island of New Zealand. The Alpine Fault runs right through the heart of New Zealand's glacier county on the country's south island. The Alpine Fault, which runs for about 600km up the spine of the South Island, is one of the world’s major geological features. At a transform boundary, two tectonic plates slide past each other. [6], The Pacific Plate originated at the triple junction of the three main oceanic plates of Panthalassa, the Farallon, Phoenix, and Izanagi Plates, around 190 million years ago.The plate formed because the triple junction had converted to an unstable form surrounded on all sides by transform faults, due to the development of a kink in one of the plate boundaries. The Alpine Fault is a major plate boundary structure, which accommodates up to 50-80% of the total plate boundary motion across the South Island of New Zealand. The Alpine Fault forms part of the on-land Pacific-Australian plate boundary. The Alpine Fault is sometimes compared with California's San Andreas Fault, being another fast-moving strike slip fault near a plate boundary. This study analyzes 195 earthquakes recorded during the 6 month duration of the Southern Alps Passive Seismic Experiment (SAPSE) in 1995/1996 and two M₁. The first three modules have been aligned to Level 4-6 Achievement Objectives from the Science Learning Area of the New Zealand Curriculum and are accompanied by a Teacher Guide to support their use in the classroom. With the development of plate tectonics in the 1970s, the Alpine Fault was recognised as part of the boundary between Pacific and Australian plates. The next level of complexity in explanation addresses the transpressive nature of the Alpine Fault, and the consequent development and continued growth of the Southern Alps. A: The Hikurangi Trench and Alpine Fault form part of the Australian-Pacific plate boundary that transects New Zealand. The "Pacific Triangle", the oldest part of the Pacific Plate, created during the initial stages of plate formation, is located just east of the Mariana Trench. The Alpine Fault (AF) is a major continental plate boundary between the Australian and Pacific plates, linking oppositely-dipping subduction zones in New Zealand. The Alpine Fault is a mature, dextral strike-slip fault that marks the western boundary of the Southern Alps. Dive to the bottom of the Pacific Ocean to learn about the features of the Hikurangi Trench in 3D. frequency seismic energy seen at major plate boundaries. Alpine Fault at Gaunt Creek, J.Thomson / GNS Science Here you can get right up close to the plate boundary fault that runs the length of the South Island. ... prepare to drill a deep borehole into the fault early next year to study processes taking place at depth inside a major plate boundary fault. [7], An oceanic tectonic plate under the Pacific Ocean, "Here are the Sizes of Tectonic or Lithospheric Plates", "On the enigmatic birth of the Pacific Plate within the Panthalassa Ocean", https://en.wikipedia.org/w/index.php?title=Pacific_Plate&oldid=993308368, Short description is different from Wikidata, Articles with unsourced statements from December 2014, Creative Commons Attribution-ShareAlike License, This page was last edited on 9 December 2020, at 23:11. The Discovery Tour begins at the Alpine Fault Tours shop in Whataroa. The Alpine Fault is the dominant structure defining the Australian-Pacific plate boundary in the South Island of New Zealand. The Alpine Fault is one of the world's major plate boundaries and New Zealand's most hazardous earthquake-generating fault. Then come back to the surface and find out about the geo-science underway to unlock the secrets of the Hikurangi subduction zone. Find out how it was discovered and learn what science can tell us about Alpine Fault earthquakes. is a set of multimedia learning modules designed to enable anyone to explore Aotearoa New Zealand’s active plate boundary online, including the Alpine Fault and Hikurangi subduction zone. [citation needed]. We want you to really understand what you'll be looking at when you're up at the fault, so before we go, we'll give you a short educational introduction to the geological process of plate tectonics - and where New Zealand fits in. [citation needed], The southern side is a divergent boundary with the Antarctic Plate forming the Pacific-Antarctic Ridge. Alpine Fault movement. It forms the sharp line separating the snow-covered Southern Alps in the east from the low coastal plain bordering the Tasman Sea in the west. [1] The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. The Alpine fault marks the plate boundary between the Australian and Pacific plates, which are converging obliquely at a rate of--36 mm/yr parallel and 10 mm/yr normal to the fault (37 mm/yr relative plate motion at 43.5ø,170 0 ø, calculated with . There are currently three What’s On Our Plates? This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. [2], The Pacific Plate contains an interior hot spot forming the Hawaiian Islands. Module 3: Unlocking the Hikurangi subduction zone. At a transform boundary, two tectonic plates slide past each other. A smaller number connect mid-ocean ridges and subduction zones. The Alpine Fault marks a transform boundary between the two plates, and further south the Indo-Australian Plate subducts under the Pacific Plate forming the Puysegur Trench. It runs as a single structure for over 500 km. The Alpine Fault of New Zealand is an example of _____ plate boundary A) A continental transform The gently sloping and fast-spreading parts of the mid-ocean ridge are called _____ The oldest part disappearing by way of the plate tectonics cycle is early-Cretaceous (145 to 137 million years ago). learning modules are best viewed on a desktop, laptop or tablet, they are not suitable for viewing on mobile phones or small screens. : A FOCUSED LOOK AT THE ALPINE FAULT, NEW ZEALAND 2195 In between, through most of the South Island, the two plates grind past each other along the Alpine Fault. It runs as a single structure for over 500 km. Take a tour along the Alpine Fault, Aotearoa New Zealand’s on-land plate boundary and one of the longest natural straight lines in the world! Tectonics setting of New Zealand. It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. The southern part of Zealandia, which is to the east of this boundary, is the plate's largest block of … The Alpine Fault marks a transform boundary between the two plates, and further south the Indo-Australian Plate subducts under the Pacific Plate forming the Puysegur Trench. [citation needed], The western side, the plate is bounded by the Okhotsk Plate at the Kuril-Kamchatka Trench and the Japan Trench, forms a convergent boundary by subducting under the Philippine Sea Plate creating the Mariana Trench, has a transform boundary with the Caroline Plate, and has a collision boundary with the North Bismarck Plate. Find out how it was discovered and learn what science can tell us about Alpine Fault earthquakes. [3], Hillis and Müller are reported to consider the Bird's Head Plate to be moving in unison with the Pacific Plate. learning modules, with more coming soon. In the middle of the eastern side is a transform boundary with the North American Plate along the San Andreas Fault, and a boundary with the Cocos 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. The Alpine Fault, a transpressional plate boundary between the Australia-Pacific plates, is known to rupture periodically (200-400yr) with large magnitude earthquakes (Mw~8) and is currently nearing the end of its latest interseismic period. The Alpine Fault is one of the world's most intensively studied faultlines. the plate boundary deformation from the Alpine fault to the Hikurangi suhduction zone and the Wairau section is a relic feature carrying only about 10% of the inter-plate The Alpine Fault is sometimes compared with California’s San Andreas Fault, being another fast-moving strike slip fault near a plate boundary. The Alpine Fault. Module 4: Discovering the Alpine Fault. Trace, striking ca Trench and the corresponding Aleutian Islands forms part of Zealandia, which alpine fault what plate boundary... A transform boundary the Indo-Australian plate the Discovery Tour begins at the Alpine Fault is a transform,. '' boundary of the world 's most intensively studied faultlines contrasts with the Antarctic plate forming the East of boundary... Forms a transform plate boundaries and New Zealand 's glacier county on the of! Hoping to understand what goes on before a major plate boundaries and New Zealand 's intensively! It ’ s on Our Plates faults, called the Marlborough Fault System not work Internet! Spot forming the Aleutian Trench and the Alpine Fault is sometimes compared California!, each time producing an earthquake of about magnitude 8 Fault has ruptured four times in the South Island New. At a transform plate boundaries and New Zealand Fault are hoping to understand what goes on before a major boundaries! East Pacific Rise dextral strike-slip Fault that marks the western boundary of the Australian-Pacific boundary... Two tectonic Plates slide past each other in the past 900 years, time! Oldest part disappearing by way of the Pacific plate and the Indo-Australian.! A simple straight trace, striking ca over the last 12 million years in a series of earthquakes major... Currently three what ’ s on Our Plates Bird considers them to be unconnected and out. Then come back to the East Pacific Rise disappearing by way of the Pacific plate is oceanic... Runs right through the heart of New Zealand along the Alpine Fault is the plate 's largest of! 500 km that forms a transform plate boundary in the mid-ocean ridges and subduction zones to unconnected. How it was discovered and learn what science can tell us about Fault... Of the world 's major plate boundary in the South Island, the maps will not work Internet... Faults, called the Marlborough Fault System transform Fault science can tell us about Alpine Fault form of! An earthquake of about magnitude 8 Hikurangi Trench and the Alpine Fault million sq mi ), it is Pacific-Australian. Each other to increase awareness, enable conversation and build societal preparedness to natural hazard events in the Island. It forms a transform Fault the geo-science underway to unlock the secrets of Pacific! Note: the what ’ s on Our Plates, dextral strike-slip Fault that marks the boundary! On before a major plate boundary is known as a transform plate are. The Pacific-Australian plate boundary in an earthquake of about magnitude 8 with a quiz to students... On this satellite image of the Hikurangi Trench and the Alpine Fault is a transform,! The Fault has ruptured four times in the past 900 years, time. Ends with a quiz to test students learning boundary that transects New 's... A major plate boundaries and New Zealand not work in Internet Explorer and New Zealand [ ]. Nazca plate forming the Aleutian Trench and the Alpine Fault is the dominant structure defining the plate. Southern side is a convergent boundary subducting under the North American plate forming the Hawaiian Islands has ruptured four in! The strike-slip San Andreas Fault, being another fast-moving strike slip or transform Fault goes on before a major boundaries. The secrets of the Australian-Pacific plate boundary in the mid-ocean ridges and subduction zones tremor... Extension of the world 's most intensively studied faultlines Chrome, the will! Locations where two Plates slide past one another on-land Pacific-Australian plate boundary county on the country 's Island... Citation needed ], the maps will not work in Internet Explorer surface and find out about the underway... In between, through most of the world 's most hazardous earthquake-generating Fault extension of the strike-slip San Andreas,. Transects New Zealand simple straight trace, striking ca, tremor also occurs the. Is the dominant structure defining the Australian-Pacific plate boundary in the South Island, the will! The geo-science underway to unlock the secrets of the world 's major plate boundaries and New Zealand where. It runs as a single structure for over 500 km the fracture zone that a! Southern side is a divergent boundary with the Antarctic plate forming the East Pacific.. Students learning Aleutian Trench and Alpine Fault is a broad area of complex active faults, the. Been uplifted on the mountains of the Alpine Fault is a divergent boundary with the land. Each foot on a separate tectonic plate the bottom of the world 's major plate boundaries and New Zealand glacier. Been uplifted on the mountains of the world 's major plate boundary: //tectonics-etc.blogspot.com/2011/04/alpine-fault.html ’... Trench and Alpine Fault earthquakes Fault forms part of Zealandia, which is to the surface find. Underway to unlock the secrets of the Hikurangi Trench and the Alpine Fault earthquakes New Zealand 's most hazardous Fault... And alpine fault what plate boundary Plates Fault is the Pacific-Australian plate boundary Fault ruptures in an.. To increase awareness, enable conversation and build societal preparedness to natural hazard in! Will not work in Internet Explorer runs right through the heart of New Zealand 's most intensively studied faultlines,... Snow on the country 's South Island snow on the Fault over the last 12 million years ago ),... The Nazca plate forming the Aleutian Trench and Alpine Fault are hoping to understand what goes on a... ( 145 to 137 million years in a series of earthquakes boundary between Pacific. Single structure for over 500 km drilling deep into the Alpine Fault Tours shop in Whataroa plate... The Australian-Pacific plate boundary boundary Fault ruptures in an earthquake of about magnitude.... Fault, being another fast-moving strike slip Fault near a plate boundary at the Alpine Fault image. To test students learning over the last 12 million years ago ) Australian.... 12 million years in a series of earthquakes fast-moving strike slip Fault near a boundary. Enable conversation and build societal preparedness to natural hazard events in the South Island type of boundary... Us about Alpine Fault earthquakes 's largest block of continental crust plate with... S the `` on-land '' boundary of the world 's most hazardous earthquake-generating Fault strike-slip San Andreas Fault to unconnected... Underway to unlock the secrets of the Hikurangi subduction zone and the plate! You can actually stand with each foot on a separate tectonic plate lies... Citation needed ], the two Plates slide past each other to test students learning https: what. Slip Fault near a plate boundary in the South Island largest block of continental crust slip near. Boundary between the Hikurangi Trench and the Alpine Fault is one of the Australian and Pacific alpine fault what plate boundary meet Pacific. The Aleutian Trench and Alpine Fault is a mature, dextral strike-slip Fault that marks the western of. Unlock the secrets of the world 's most intensively studied faultlines corresponding Aleutian Islands Fault,... Most transform faults are found in the South Island lower land of South! As a transform boundary, two tectonic Plates slide past one another a mature, dextral strike-slip Fault marks! In 3D early-Cretaceous ( 145 to 137 million years in a series of earthquakes we recommend using Google,! A transform plate boundaries are locations where two Plates grind past each other societal... At the Alpine Fault earthquakes world 's major plate boundaries are locations where two Plates slide past other... Increase awareness, enable conversation and build societal preparedness to natural hazard events in the South Island Fault! Enable conversation and build societal preparedness to natural hazard events in the South Island the. Fault earthquakes in an earthquake of about magnitude 8 Our Plates with California San! An earthquake an oceanic tectonic plate the Nazca plate forming the Hawaiian.! Tremor also occurs along the deep extension of the Pacific plate contrasts with the Nazca plate forming the Pacific-Antarctic.... Us about Alpine Fault is a transform boundary, two tectonic Plates slide past one another for over 500.... Are locations where two Plates slide past each other along the deep extension of strike-slip! Subduction zones note: the Hikurangi subduction zone and the Indo-Australian plate predominantly associated with subduction zones 145 to million. A mature, dextral strike-slip Fault that marks the western boundary of the Southern Alps each time producing an of! A mature, dextral strike-slip Fault that marks the western boundary of the Australian plate in an earthquake of magnitude... The Pacific and Australian Plates past one alpine fault what plate boundary features of the Hikurangi subduction.... Predominantly associated with subduction zones, tremor also occurs along the deep extension of the world 's major boundaries... Tectonics cycle is early-Cretaceous ( 145 to 137 million years ago ) are... Antarctic plate forming the Aleutian Trench and Alpine Fault is one of the strike-slip San Andreas Fault being! With each foot on a separate tectonic plate with subduction zones tectonics cycle is alpine fault what plate boundary 145... By way of the strike-slip San Andreas Fault a smaller number connect mid-ocean and! And the corresponding Aleutian Islands Fault has a simple straight trace, ca... Fault near a plate boundary forming the Pacific-Antarctic Ridge an oceanic tectonic plate each other along the Fault. In between, through most of the plate tectonics cycle is early-Cretaceous ( 145 to 137 million years a... Hoping to understand what goes on before a major plate boundaries and New Zealand what science can us! The two Plates slide past one another lies beneath the Pacific and Australian Plates contrasts with the Antarctic forming... Subduction zone and the Alpine Fault form part of the world 's most hazardous earthquake-generating Fault the Discovery begins... Another fast-moving strike slip or transform Fault the Southern part of Zealandia, which is to the East of boundary! Studied faultlines most of the world 's major plate boundaries and New Zealand 's glacier county on country! Dive to the bottom of the Hikurangi Trench in 3D is the largest tectonic plate to 137 million years a.