earthquake alpine fault

Depending on the time of year, the large number of seasonal visitors in the Queenstown Lakes District and other parts of Otago will be completely reliant on immediate assistance. Areas such as the Shotover River may be radically transformed. 2. Our scientific understanding concerning the next large earthquake on the Alpine Fault, New Zealand. The rupture of another faultline nearby may trigger it, but we will only know this afterwards. We are a young country and learning to adapt to it is a necessity if you and your community are to get through. Alpine has had: (M1.5 or greater) 1 earthquake in the past 24 hours 7 earthquakes in the past 7 days; 29 earthquakes in the past 30 days; 767 earthquakes in the past 365 days Large faults within the Earth's crust result from the action of plate tectonic forces, with the largest forming the boundaries between the plates, such as subduction zones or transform faults. If not, take the initiative and contact Emergency Management Otago to discuss setting up a local community response group. This includes having stored water, food, medical supplies, alternative means of cooking and heating for your household and your pets. magnitude that is much smaller than that expected from the Alpine Fault (Mw=8.2) and that is similar to a potential Hope Fault event (Mw7+). Future Earthquake Predictions. Aggradation will deposit high sediment volumes in riverbeds lasting for many months. The Alpine Fault ruptures—on average—every 330 years with a magnitude 8 earthquake. A new model has simulated the disruption a major Alpine Fault earthquake would have on the South Island's transport network - cutting off the West Coast for at least a week. Image / GNS Science You are represented by 12 councillors, elected to govern the Council for the people of Otago. Our Knowledge of the Alpine Fault . Numerous experts say it will be the largest natural disaster of … Large earthquakes are less common along the central Alpine Fault, where the plates are not subducting and the forces are accommodated in different ways. The South Island Alpine Fault Earthquake Response (SAFER) Framework is the result of two years of effort by AF8, a collaboration between all the South Island’s Civil Defence Emergency Management Groups, scientists and partner agencies. The pressure has been continually building for about 280 years since it was last released by a large earthquake in 1717 AD. Less intense shaking from aftershocks will continue for months. A rupture along the full length of the fast-slipping Alpine Fault on New Zealand's South Island poses the largest potential seismic threat to the southern and central parts of the country. An Alpine Fault earthquake will likely rupture a larger fault length (several hundreds of kilometres rather than several tens of kilometres) over a longer period of time (100s of seconds rather than tens of seconds) and affect a much larger area than the Darfield earthquake. The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. 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. 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. Provision of emergency medical facilities for many major trauma victims and the rescue of trapped people on roads will be severely disrupted for 3-4 weeks. While the direct impact on people, families and businesses will vary, it is certain that normal life will be disrupted for everyone in the South Island for an extended period afterwards. The 1929 Arthur’s Pass earthquake on the Poulter Fault. The Alpine Fault runs right through the heart of New Zealand's glacier county on the country's south island. Encourage others to do likewise. AF8 aims to increase awareness, enable conversation and build societal preparedness to natural hazard events in the South Island, planning and preparing a coordinated response across the South Island, QuakeKit: Investigating earthquake science and technology, Learning from experience and science: Ten years on, Co-ordinated Planning and Partnerships Pay Off. Our environment is our most important asset. www.youtube.com/channel/UC3nsXLqxO5OGcYCmEcS56sA. Evidence is growing the South Island's Alpine Fault, capable of devastating earthquakes of magnitude 8 and above, ruptures more frequently than previously believed. The last such earthquake took place in … Ready to apply for a resource consent? 3. The largest city within the highest-risk zone is the nation's capital, Wellington, followed by Hastings then Napier. The Wakatipu including Queenstown could become completely isolated if the airport is damaged. People trapped on roads and tracks, or in accommodation will need to be looked after where they are for days due to road blockages, airport damage, and limited means of transportation. All communication systems including land and cell-phones may be down in many parts of West Otago. Significant building damage can be expected in the Queenstown Lakes District. The last major earthquake on the Alpine Fault was in 1717, so we're already a little overdue for one of the biggest earthquakes in New Zealand's modern history. Their location, on either side of the fault, has helped us understand how the Alpine Fault moves in an earthquake. The 2020 New Zealand Earthquake (pronounced "TWENTY-TWENTY", also known as the Alpine Fault Quake and the 2020 South Island Quake) is a magnitude 8.7 earthquake that will occur on the Alpine Fault in New Zealand's South Island at 11:31 (local) on Thursday, June 18th, 2020. Cessation of most commercial activity may occur in many parts of the South Island, however, many local economies will be maintained solely by recovery activities. The Alpine Fault is called a strike slip or transform fault. The best paleoseismic evidence to date suggests the southern and central sections of the Alpine Fault, at the boundary separating the Australian and Pacific tectonic plates, typically rupture during very large full-section earthquakes of magnitude 7.7 or larger. An Alpine Fault earthquake will be felt by every South Islander and likely many North Islanders, too. The length of the rupture will be … Electricity supply is likely to be unavailable for many weeks or even months in some remote areas. Civil Defence Emergency Management Groups across the South Island are working together to plan a coordinated response to the next severe Alpine Fault earthquake. 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 will be felt throughout the South Island and the lower North Island and as far away as Sydney. At 3 AM on May 29, 2013, the South Island’s technological uncon­scious roars […] However, a large number of people will suffer disabling injuries. There will be liquefaction and widespread ground damage. https://phys.org/news/2020-12-seismic-zealand-alpine-fault-complex.html Expect many bridges to fail west of Queenstown, Wanaka/Hawea no bridge design performs well during a fault rupture. Damage to hydro electrical generation plants and transmission lines will result in an immediate shutdown of South Island power generation and widespread disruption of reticulation. 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 ruptures—on average—every 330 years with a magnitude 8 earthquake. As in any disaster some people may suffer terribly, and others will profit. The Alpine Fault is sometimes compared with California’s San Andreas Fault, being another fast-moving strike slip fault near a plate boundary. Presentation given in Christchurch in March 2015. At 3 AM on May 29, 2013, the South Island’s technological uncon­scious roars […] The alpine fault may rupture along part of its length, with lower magnitude, and be followed shortly by rupture of the rest. The result is a major earthquake along the Alpine fault. Many other roads will be affected. The Resource Management Act sets out how we should manage our environment and forms the foundation for the majority of our work. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Transalpine routes and roads in mountainous areas will be impassable for weeks, therefore, tourists and other travellers are likely to be stranded. A major problem constraining repair and rebuilding will be the shortage of trades people and materials. In the same way that the 2016 Kaikoura earthquake caused massive landslides to block SH1 for over a year, an Alpine Fault rupture will cut road access through the Kawarau Gorge, Kingston to Frankton, Haast Pass and the Glenorchy Road may be cut in many places, mostly by landslides and dropouts. A study released by NIWA in 2018 found evidence of tsunami up to 5m high caused by landslides into Lake Tekapo, which scientists believe will be similar to other large Otago Lakes: www.niwa.co.nz/news/lake-tekapo-study-raises-awareness-of-tsunamis-in-nz-lakes. Alpine Fault movement. New evidence of a 19th century earthquake on New Zealand's Alpine fault suggests that in at least one portion of the fault, smaller earthquakes may occur in between such large rupture events. The 2016 Kaikoura earthquake, which ruptured parts of The Humps, the Hundalee, Hope, Jordan Thurst, Papatea, Kekerengu and Needles faults. The Clyde Dam has been built to very high specifications and it is unlikely it would suffer catastrophic damage. Plan to be self-reliant for at least three days – a week or more is realistic. The lengthy Alpine Fault, which runs along the spine of the Southern Alps, has garnered much attention as it has a clear geographic record of rupturing every 300 years or so. 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