Alpine Fault - wikipedia Alpine Fault Snow delineates the escarpment formed by the Alpine Fault along the Southern Alps ' northwest edge, near the South Island 's west coast. This satellite image shows the aftermath of a blizzard that hit the island in July 2003. Movement along the Alpine Fault is deforming the microcontinent of Zealandia, with the southern part ( on the Pacific Plate ) sliding past and slightly onto the northwest part ( on the Indo - Australian Plate ) This map, coloured by elevation, shows how the Alpine Fault affects the topography of the South Island 's West Coast. The region shown is 495 km ( 307 mi ) long ; northwest is at the top. 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. 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 plates, meaning that the fault has a significant high - angle reverse oblique component to its displacement. The Alpine Fault is believed to align with the Macquarie Fault Zone in the Puysegur Trench off the southwestern corner of the South Island. 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 set of faults, which includes the Wairau Fault, the Hope Fault, the Awatere Fault, and the Clarence Fault, transfer displacement between the Alpine Fault and the Hikurangi subduction zone to the north. The Hope fault is thought to represent the primary continuation of the Alpine fault. Average slip rates in the fault 's central region are about 30mm a year, very fast by global standards. Contents 1 Major ruptures 2 Earthquakes in historic times 3 Hydrothermal activity 4 See also 5 References 6 External links Major ruptures Over the last thousand years, there have been four major ruptures along the Alpine Fault causing earthquakes of about magnitude 8. These had previously been determined to have occurred in approximately 1100, 1430, 1620 and 1717 CE, at intervals between 100 and 350 years. The 1717 quake appears to have involved a rupture along nearly 400 kilometres ( 250 mi ) of the southern two thirds of the fault. Scientists say that a similar earthquake could happen at any time as the interval since 1717 is longer than between the earlier events. Newer research carried out by the University of Otago and the Australian Nuclear Science and Technology Organisation revised the dates of the pre-1717 earthquakes to between 1535 and 1596 ( instead of 1620 ), 1374 and 1405 ( instead of 1430 ), and 1064 and 1120 ( instead of 1100 ). In addition, an earlier earthquake was identified to have occurred between 887 and 965. GNS Science researchers have compiled an 8000 - year timeline of 24 major quakes on the ( southern end of the ) fault from sediments at Hokuri Creek, near Lake McKerrow in north Fiordland. In earthquake terms, the 850 kilometres ( 530 mi ) long fault is remarkably consistent, rupturing on average each 330 years, at intervals ranging from 140 years to 510 years. Large ruptures can also trigger earthquakes on the faults continuing north from the Alpine Fault. There is paleotsunami evidence of near - simultaneous ruptures of the Alpine fault and Wellington ( and / or other major ) faults to the North having occurred at least twice in the past 1,000 years. Earthquakes in historic times The Alpine Fault and its northern offshoots have experienced sizable earthquakes in historic times : 1848 -- Marlborough, estimated magnitude = 7.5 1888 -- North Canterbury, estimated magnitude = 7.3 1929 -- Arthur 's Pass, estimated magnitude = 7.1 1929 -- Murchison, estimated magnitude = 7.8 1968 -- Inangahua, estimated magnitude = 7.1 2003 -- Fiordland, estimated magnitude = 7.1 2009 -- Fiordland, estimated magnitude = 7.8 Hydrothermal activity In 2017 scientists reported they had discovered beneath Whataroa, a small township on the Alpine Fault, `` extreme '' hydrothermal activity which `` could be commercially very significant ''. See also List of earthquakes in New Zealand Plate tectonics Seismology References Notes ^ Jump up to : Zachariasen, J. ; Berryman, K. ; Langridge, R. ; Prentice, C. ; Rymer, M. ; Stirling, M. ; Villamor, P. ( 2006 ). `` Timing of late Holocene surface rupture of the Wairau Fault, Marlborough, New Zealand '' ( PDF ). New Zealand Journal of Geology and Geophysics. 49 : 159 -- 174. doi : 10.1080 / 00288306.2006. 9515156. Retrieved 2009 - 11 - 30. Jump up ^ Booker, Jarrod ( 24 August 2006 ). `` Deadly alpine quake predicted ''. The New Zealand Herald. Retrieved 18 January 2015. Jump up ^ Gorman, Paul ( 1 November 2012 ). `` Great quakes ' debris tracked ''. The Press. p. A5. Retrieved 18 January 2015. Jump up ^ `` ' Well Behaved ' Alpine Fault ``. Science Media Centre 28 June 2012. Jump up ^ `` http://www.doc.govt.nz/upload/documents/science-and-technical/casn333.pdf '' Jump up ^ Sutherland, R., Townend, J., Toy, V., Upton, P., Coussens, J., and 61 other ( 2017 ) `` Extreme hydrothermal conditions at an active plate - bounding fault ''. Letter to Nature. doi : 10.1038 / nature22355 Jump up ^ Geothermal discovery on West Coast Otago Daily Times, 18 May 2017. Sources Robinson, R. ( 2003 ). Potential earthquake triggering in a complex fault network : the northern South Island, New Zealand. Geophysical Journal International, 159 ( 2 ), 734 -- 748. ( abstract ) Wells, A., Yetton, M.T., Duncan, R.P., and Stewart, G.H. ( 1999 ) Prehistoric dates of the most recent Alpine fault earthquakes, New Zealand. Geology, 27 ( 11 ), 995 -- 998. ( abstract ) External links Alpine Fault earthquake talk -- Otago Regional Council Alpine Fault research in the Department of Geology -- University of Otago Where were New Zealand 's largest earthquakes ? -- GNS Science Earthquakes and Tectonics in New Zealand -- Nature & Company Limited The Next Alpine Fault Earthquake in New Zealand -- GNS Science Seismic faults of New Zealand North Island North Island Fault System Mohaka Fault Ruahine Fault Waimana Fault Waiohau Fault Wairarapa Fault Wellington Fault Whakatane Fault South Island Alpine Fault Marlborough Fault System Awatere Fault Clarence Fault Elliott Fault Hope Fault Hundalee Fault Kekerengu Fault Wairau Fault Canterbury Fault System Christchurch Fault Greendale Fault Port Hills Fault Other Oceanic Faults Kermadec - Tonga subduction zone ( Hikurangi Trench Kermadec Trench ) Macquarie Fault List of earthquakes in New Zealand Pacific Plate Indo - Australian Plate Retrieved from `` https://en.wikipedia.org/w/index.php?title=Alpine_Fault&oldid=802246277 '' Categories : Seismic faults of New Zealand Strike - slip faults Geographic areas of seismological interest Hidden categories : All articles with dead external links Articles with dead external links from July 2017 Articles with permanently dead external links All articles with unsourced statements Articles with unsourced statements from September 2017 Articles with dead external links from September 2017 Talk Contents About Wikipedia Deutsch Italiano Nederlands Polski Русский Српски / srpski Українська Tiếng Việt Edit links This page was last edited on 24 September 2017, at 22 : 38. 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Question: what type of fault is the alpine fault
Answer: right-lateral strike-slip fault