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Wellington Fault
The Wellington Fault is an active seismic fault in the southern part of the North Island of New Zealand. It is a dextral (right-lateral) strike-slip fault with variable amounts of vertical movement causing uplift to the northwest, as expressed by a series of ranges. It forms part of the North Island Fault System, which accommodates the transfer of displacement along the oblique convergent boundary between the Indo-Australian Plate and Pacific Plate. Geometry The Wellington Fault consists of three main sections. Wellington-Hutt Valley section This 75 km long curved fault segment is mapped on the floor of the Cook Strait before crossing the Wellington peninsula through Long Gully and along the northwestern edge of Wellington Harbour, past Lower Hutt terminating near Kaitoke. This segment has had a lateral slip-rate of 6.0–7.6 mm per year for at least the last 140,000 years, from the progressive offset of dated river terraces. The most recent rupture event along thi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Characteristic Earthquake
Earthquake prediction is a branch of the science of seismology concerned with the specification of the time, location, and magnitude of future earthquakes within stated limits, and particularly "the determination of parameters for the ''next'' strong earthquake to occur in a region". Earthquake prediction is sometimes distinguished from '' earthquake forecasting'', which can be defined as the probabilistic assessment of ''general'' earthquake hazard, including the frequency and magnitude of damaging earthquakes in a given area over years or decades. Not all scientists distinguish "prediction" and "forecast", but the distinction is useful. Prediction can be further distinguished from earthquake warning systems, which upon detection of an earthquake, provide a real-time warning of seconds to neighboring regions that might be affected. In the 1970s, scientists were optimistic that a practical method for predicting earthquakes would soon be found, but by the 1990s continuing failure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wellington Region
Greater Wellington, also known as the Wellington Region (Māori: ''Te Upoko o te Ika''), is a non-unitary region of New Zealand that occupies the southernmost part of the North Island. The region covers an area of , and has a population of The region takes its name from Wellington, New Zealand's capital city and the region's seat. The Wellington urban area, including the cities of Wellington, Porirua, Lower Hutt, and Upper Hutt, accounts for percent of the region's population; other major urban areas include the Kapiti conurbation (Waikanae, Paraparaumu, Raumati Beach, Raumati South, and Paekākāriki) and the town of Masterton. Local government The region is administered by the Wellington Regional Council, which uses the promotional name Greater Wellington Regional Council. The council region covers the conurbation around the capital city, Wellington, and the cities of Lower Hutt, Porirua, and Upper Hutt, each of which has a rural hinterland; it extends up the west coa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seismic Faults Of New Zealand
Seismology (; from Ancient Greek σεισμός (''seismós'') meaning "earthquake" and -λογία (''-logía'') meaning "study of") is the scientific study of earthquakes and the propagation of elastic waves through the Earth or through other planet-like bodies. It also includes studies of earthquake environmental effects such as tsunamis as well as diverse seismic sources such as volcanic, tectonic, glacial, fluvial, oceanic, atmospheric, and artificial processes such as explosions. A related field that uses geology to infer information regarding past earthquakes is paleoseismology. A recording of Earth motion as a function of time is called a seismogram. A seismologist is a scientist who does research in seismology. History Scholarly interest in earthquakes can be traced back to antiquity. Early speculations on the natural causes of earthquakes were included in the writings of Thales of Miletus (c. 585 BCE), Anaximenes of Miletus (c. 550 BCE), Aristotle (c. 340 BCE), and Zhan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wairarapa Fault
The Wairarapa Fault is an active seismic fault in the southern part of the North Island of New Zealand. It is a dextral (right lateral) strike-slip fault with a component of uplift to the northwest as expressed by the Rimutaka Range. It forms part of the North Island Fault System, which accommodates the transfer of displacement along the oblique convergent boundary between the Indo-Australian Plate and Pacific Plate. Geometry The Wairarapa Fault continues south of Lake Wairarapa as the Wharekauhau thrust, which can be traced on the seabed in the Cook Strait for about 30 km with a possible further continuation on a fault strand lying to the northwest. These faults segments are considered likely to be the active traces of the southern Wairarapa Fault. At its northeastern end the fault terminates near Mauriceville, with the displacement apparently continued on the Pa Valley and Alfredton Faults. Seismicity Rupture along the Wairarapa Fault and Wharekauhau thrust was responsible ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of The Wellington Region
The Wellington Region of New Zealand has a foundation of Torlesse Greywacke rocks, that make up the Tararua and Rimutaka Ranges, that go from Wellington in the south to the Manawatū Gorge, where they are renamed as the Ruahine Ranges, and continue further north-northeast, towards East Cape. To the west of the Tararua Ranges are the Manawatū coastal plains. To the east of the Ruahine Ranges is the Wairarapa-Masterton Basin, then the Eastern Uplands that border the eastern coast of the North Island from Cape Palliser to Napier. To the east of the North Island is the Hikurangi Trough, a collision zone between the Pacific Plate and the Australian Plate. The Pacific Plate is being subducted under the Australian Plate, compressing the Wellington Region, and causing the North Island Fault System, and a series of SSW-NNE trending basins and ranges, including the Tararua and Rimutaka Ranges, and the Wairarapa-Masterton Basin. Successively newer rocks have been accreted to the east co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of New Zealand
The geology of New Zealand is noted for its volcanic activity, earthquakes and geothermal areas because of its position on the boundary of the Australian Plate and Pacific Plates. New Zealand is part of Zealandia, a microcontinent nearly half the size of Australia that broke away from the Gondwanan supercontinent about 83 million years ago. New Zealand's early separation from other landmasses and subsequent evolution have created a unique fossil record and modern ecology. New Zealand's geology can be simplified into three phases. First the basement rocks of New Zealand formed. These rocks were once part of the super-continent of Gondwana, along with South America, Africa, Madagascar, India, Antarctica and Australia. The rocks that now form the, mostly submerged, continent of Zealandia were then nestled between Eastern Australia and Western Antarctica. Secondly New Zealand drifted away from Gondwana and many sedimentary basins formed, which later became the sedimentary rocks cove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Woodville, New Zealand
Woodville, previously known as The Junction is a small town in the southern North Island of New Zealand, 75 km north of Masterton and 25 km east of Palmerston North. The 2013 census showed that 1401 people reside in Woodville. The town is in the Tararua District and the Manawatū-Whanganui region, although it has strong ties with the Hawke's Bay region, of which it was once a part, but is often considered to be the northern boundary of Wairarapa. It is within the catchment area of the Manawatu River. Geography Woodville covers a land area of 4.04 km². Only a few kilometres west of Woodville, the Manawatu River runs from east to west and cuts a deep gorge through the mountains, effectively slicing a mountain range in two. It is unusual geology as the river flows east towards the Pacific coast of the lower North Island, then cuts back west through the gorge and flows out into the Tasman Sea near Foxton. Known by Māori as Te Apiti, the gorge itself features in M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tararua Range
The Tararua Range, often referred to as the Tararua Ranges or Tararua, is one of several mountain ranges in the North Island of New Zealand. The Tararua Range runs northeast–southwest for from near Palmerston North to the upper reaches of the Hutt Valley, where the northern tip of the Remutaka Range begins. It is separated in the north from the southern end of the Ruahine Range by the Manawatu Gorge. Most of the Range is wilderness, protected as the Tararua Forest Park. The highest peak in the Tararua Range is Pukeamoamo / Mitre (not to be confused with Mitre Peak) at . Other prominent peaks include Mount Bannister at and Mount Hector at , which is named after the scientist Sir James Hector. Its Māori name is Pukemoumou, or 'hill of desolation'. Geography The Tararua Range is divided into two distinct northern and southern regions. Each of these is dominated by a central mountain peak: Arete in the north and Hector in the south. A total of ten rivers rise on the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whanganui-a-Tara
Te Whanganui-a-Tara is the Māori name for Wellington Harbour. The term is also used to refer to the city of Wellington which lies on the shores of the harbour. ''Te Whanganui-a-Tara'' translates as "the great harbour of Tara", named for Tara, a son of Polynesian explorer Whatonga, whose descendants lived in the area. In Māori tradition, Te Whanganui-a-Tara is said to have been first discovered by Kupe, who visited in the 10th century. A number of place names in the area commemorate Kupe, such as Te Tangihanga o Kupe or Te Raranga o Kupe (Barrett Reef), and Te Aroaro o Kupe or Te Ure o Kupe (Steeple Rock). Kupe also named two islands in the harbour, Mākaro (Ward Island) and Matiu ( Somes Island). However, it is the rangatira Tara who is remembered in the names of both the city and the first iwi (tribe) to settle there permanently, Ngāi Tara. Another name for the region is "Te Upoko o te Ika a Māui", which means "the head of Māui’s fish". According to Māori legend, a giant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Māori Mythology
Māori mythology and Māori traditions are two major categories into which the remote oral history of New Zealand's Māori may be divided. Māori myths concern fantastic tales relating to the origins of what was the observable world for the pre-European Māori, often involving gods and demigods. Māori tradition concerns more folkloric legends often involving historical or semi-historical forebears. Both categories merge in to explain the overall origin of the Māori and their connections to the world which they lived in. Māori had yet to invent a writing system before European contact, beginning in 1769, so they had no method to permanently record their histories, traditions, or mythologies. They relied on oral retellings memorised from generation to generation. The three forms of expression prominent in Māori and Polynesian oral literature are genealogical recital, poetry, and narrative prose. Experts in these subjects were broadly known as . The rituals, beliefs, and ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pull-apart Basin
In geology, a basin is a region where subsidence generates accommodation space for the deposition of sediments. A pull-apart basin is a structural basin where two overlapping (en echelon) strike-slip faults or a fault bend creates an area of crustal extension undergoing tension, which causes the basin to sink down. Frequently, the basins are rhombic or sigmoidal in shape. Dimensionally, basins are limited to the distance between the faults and the length of overlap.Frisch, Wolfgang, Martin Meschede, and Ronald C. Blakey. ''Plate tectonics: Continental drift and mountain building''. Springer, 2010. Pull-apart basins are also referred to as overlapping-tension-zones (OTZ). Mechanics and fault configuration The inhomogeneity and structural complexity of continental crust causes faults to deviate from a straight course and frequently causes bends or step-overs in fault paths. Bends and step-overs of adjacent faults become favorable locations for extensional and compressional str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
