alpine fault simulation

The source is also characterized by tapered slip down to zero meter up to the surface and down to the depth of 12km. Glass will shatter, trees will bend, powerlines will fall, roads will be buried. As suggested by the source panel, it ruptures unilaterally from south to north with a rupture velocity of 2km/s. Bienvenue sur le site officiel Alpine Cars. Read more. These four short videos explain why we are taking the Alpine Fault so seriously and help you understand how you can be prepared for the disruption to normal life that a severe earthquake will cause. Figure 14 The NS component of the synthetic Alpine fault rock site acceleration time history in (a), and soil surface acceleration time history in (b). Smile Machines. This study investigates the potential for seismic seiches in Lake Tekapo, New Zealand, triggered by ground shaking from an Mw8.2 Alpine Fault earthquake. Fault Valving and Pore Pressure Evolution in Simulations of Earthquake Sequences and Aseismic Slip Weiqiang Zhu1, Kali L. Allison1,2, Eric M. Dunham1,3, and Yuyun Yang3 1Department of Geophysics, Stanford University 2Department of Geology, University of Maryland 3Institute for Computational and Mathematical Engineering, Stanford University Abstract Fault-zone This proposed model already published in Holden and Kaiser (2016) satisfies the conditions required by the source panel. The fault line along the South Island ruptures roughly every 300 years. Large earthquakes (magnitude ≥ 7.0) are rare, especially along slow-slipping plate boundaries. à partir de 57 000 € CONFIGUREZ CETTE VERSION. The Alpine Fault connects two "subduction" margins where the ocean floor descends into the Earth's mantle. The Alpine fault, one of the major fault systems in New Zealand, extends all through west coast with a high possibility of a rupture in the next 50 years, meaning that the next large earthquake on the Alpine Fault is likely to occur within our, or our children’s, lifetime. Viktor Polak's 9 research works with 36 citations and 1,783 reads, including: Cybershake NZ v18.5: New Zealand simulation-based probabilistic seismic hazard analysis What is MERIT? We computed the ground motion for generic rock sites in Christchurch. / Natural Hazards and Risks Credits: Project Alpine Fault Magnitude 8 (AF8). Copyright © 2020 MediaWorks TV - All Rights Reserved, By subscribing you agree to our Terms of Access and Privacy Policy. Site effects for soft ground conditions were also added to account for possible amplification of ground shaking by soil layers in Christchurch. Découvrir Rencontrez nos conseillers Alpine RRG Découvrir mon centre Alpine RRG « J’ai choisi le nom Alpine car cet adjectif représente pour moi le plaisir de conduire sur les routes de montagne » Jean Rédélé, fondateur de la marque Alpine. AF8 [Alpine Fault magnitude 8] is a collaborative effort to save lives by planning and preparing a coordinated response across the South Island after a severe earthquake on the Alpine Fault. Peak horizontal ground velocities (m/s) over the South Island for an Alpine Fault rupture scenario. Flagship 5 – Pathways to Resilience. Recent research (published … The Australian plate is sliding horizontally towards the north-east, at the same time as the Pacific plate is pushing up, forming the Southern Alps. The massive Alpine Fault is due for another big earthquake and scientists have been drawing up a scenario of what the devastation would look like. The star represents the earthquake hypocentre. ALPINE . The synthetic records show that ground motion accelerations in Greymouth and Hokitika are expected to exceed 20%g and 50%g respectively during an Alpine fault earthquake, while ground motions in Christchurch are expected to be moderate, with peak ground accelerations (PGAs) of 8%g expected from an Alpine event and 6%g from a Hope fault event. In this study, instead of using GMPE, we carry out synthetic broadband simulations to derive synthetic strong-motion records. Download high-res image; Open in new tab; Download Powerpoint; Fig. The large September 2010 and the tragic February 2011 Canterbury earthquakes caused widespread damage by ground shaking and sand liquefaction in the Canterbury region. Based on general equilibrium theory adapted for business disruption response and equilibrium-seeking dynamics. Such a duration is comparable to the duration observed in Christchurch from the 2010 Mw 7.1 Darfield earthquake. It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. Famous Awatere active fault line on north west side of Awatere Valley, Branch of great alpine fault, Aerial, New Zealand. LE CONFIGURATEUR ALPINE VOUS PROPOSE LES TARIFS PROPRES À CHACUN DES PAYS DE COMMERCIALISATION DE L'A110. / Ground motion simulations The simulation is part of a series of videos created by Project AF8 so people can better understand and be prepared for such a event. Lack of large earthquakes in the instrumental record enlarges uncertainty of the recurrence time; the recurrence of large earthquakes is generally determined by extrapolation according to a magnitude-frequency relation. Vivez l’expérience Alpine. The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. This high PGA is likely due not only to non-linear soil response not accounted for in this study but also to the presence of a modelled asperity nearby and to strong directivity effects, neither of which are accounted for in current GMPE modelling for New Zealand. Video simulation shows 12m-high tsunami battering New Zealand coast 5 Mar, 2018 10:31 PM 3 minutes to read Animation showing the tsunami threat posed by … Such simulations can provide very useful alternative estimates of possible ground motions from large faults for major population centres. In this preliminary study, we chose conservative values for all source parameters based on our current understanding of large crustal earthquake source mechanics. Extreme peak velocities of 3.8m/s are modelled in the Haast region. Find a local Authorised Alpine Specialist Dealer in your area. For each asperity, records from a small or moderate earthquake were used as proxies for the Green’s functions. The Alpine Fault is a geological fault that runs almost the entire length of New Zealand's South Island and forms the boundary between the Pacific Plate and the Indo-Australian Plate. (2002). She says the more people prepare for such an event the easier life will be after it happens. / Earthquakes simulations can provide very useful alternative estimates of possible ground motions from large faults for major population centres. 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 simulation, the inset in (C) shows the fault geometry and injection. The source model is 500 km long by 12 km wide with a maximum slip of 15 m half-way along the fault. Everything not tied to the ground will move. This proposed model already published in Holden and Kaiser (2016) satisfies the conditions required by the source panel. In general the response spectra from the simulations exceed the spectra derived from GMPE except for spectral periods between 0.5 and 1.2 seconds. We distributed asperities where large surface fault displacements have been inferred from paleoseismic studies. 1 / 5. Approximate rupture dates are 1717AD, 1620 AD, 1450 AD, and 1100 AD. The model is 500 by 12 km long, striking 52 degrees, dipping 45 degrees and with a rake angle of 173 degrees. Response spectra are computed from the synthetic ground motions, and are compared to those estimated from the New Zealand GMPE. Austria - Österreich; Belgium - Belgique. Scientists, working as part of Project Alpine Fault Magnitude 8 (AF8), have marked the end of their first two years of work planning and preparing for a severe magnitude eight earthquake. Découvrez notre réseau et trouvez le Centre Alpine le plus proche de chez vous 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. By using conservative parameters, we are attempting to model maximum possible ground shaking intensity. Register Warranty. AF8 Alpine Fault modelling. The fault, which runs about 600km up the western side of the South Island between Milford Sound and Marlborough, poses one of the biggest natural threats to New Zealand - especially the West Coast, Canterbury and Otago. The duration of shaking is expected to last over 3 minutes for an Alpine fault earthquake and at least 20 seconds for a Hope fault earthquake. It has ruptured four times in the last 900 years, resulting in earthquakes of around magnitude 8, and is now considered highly probable to go again in the next 50 years. Fault valving and pore pressure evolution in simulations of earthquake sequences and aseismic slip. “Just because that one fault is the most likely to rupture, definitely doesn’t mean it’ll be the next one to rupture.” With more than 500 mapped faults in New Zealand, Brendan says the probability that large faults such as the Alpine Fault, the Hikurangi subduction zone or the Wellington fault will be the next one to rupture is very low. (2000) and Mai et al. Download the latest software for your system or device. The mountains are rising at 7 millimetres a year, but erosion wears them down at a similar rate. The preliminary estimates for peak horizontal acceleration are less than 4% g. These results are reasonably consistent with recorded values from recent large earthquakes (Mw > 7) and distances of 150 km+. 2 Frictional properties and characteristic length for earthquake nucleation and hydraulic diffusion. // The Alpine configurator can display the local prices for all the countries where the A110 are sold. / Alpine Fault and Hope Fault modelling. "There's an inevitability about the next Alpine Fault earthquake," Dr Caroline Orchiston, a scientist and guest editor on the issue, told Breakfast. Plongez dans l’univers Alpine au sein de nos centres Alpine RRG. Project AF8 Steering Group chair Angus McKay says the next research focus is creating a more in depth plan of how to help those people who will be worse affected. Earthquakes along the fault, and the associated earth movements, have formed the Southern Alps. Important information about buying Alpine products online. Home In general the response spectra from the simulations exceed the spectra derived from GMPE except for spectral periods between 0.5 and 1.2 seconds. / Our Science We have computed broadband synthetic seismograms in Christchurch for a large possible Alpine fault earthquake. Large accelerations are generated from localized asperities while the ground motions resulting from the rest of the fault rupture area are negligible. 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. - fault line photos et images de collection. The Alpine Fault. faille de san andreas - fault line photos et images de collection. Recent advances in earthquake mechanics allow us to compute seismograms for realistic earthquake scenarios, at specific locations, and with specific site conditions. Consequential severe damage to lifelines, including the main transportation corridors, is also predicted. L’Alpine A110S offre une expérience de conduite intensément Alpine. The model is 500 by 12 km long, striking 52 degrees, dipping 45 degrees and with a rake angle of 173 degrees. Pure. Réservez votre essai de l’A110. A 400 km rupture of the fault is expected to happen within our lifetime, which will have a broad impact on much of the South Island's critical infrastructure, Project AF8 lead scientist Dr Caroline Orchiston says. Alpine Fault heterogeneous slip model scenario employing RUPGEN toolkit developed by Mai et al. However, most of the motion on the fault is strike-slip, with the Tasman district and West Coast moving North and … Flamish - Flamand; French - Français; France - France ; Germany - Deutschland; Italy - Italia; Luxembourg - Luxembourg; Poland - … Future Alpine A110 Cabriolet (2019) – Pour espérer concurrencer Porsche, Alpine se doit de développer sa gamme.Ce devrait être chose faite avec l’arrivée prochaine d’un modèle découvrable. Just-released videos have shown what would happen in the event of a major quake along the South Island's big-risk Alpine Fault. The Alpine Fault, which runs for about 600km up the spine of the South Island, is one of the world’s major geological features. We subsequently superimposed the effects of soft soil condition on the modelled ground motions. The last time was in 1717. the alpine fault along the west coast of new zealand. Calculations for synthetic seismograms are based on a validated algorithm for large crustal earthquakes. Ensure your Alpine product is covered by our limited warranty* Register. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Software Updates. At present, the response spectra from a great scenario earthquake from the Alpine fault can only be estimated from ground-motion prediction equations (GMPEs) based on local and overseas earthquake records. Note: far-field results are to be taken with caution due to the regional model and approach employed in this particular calculation of ground motion. Synthetic ground motions are used as a forcing boundary to drive lake water motions by further developing a tsunami simulation model—COMCOT—and coupling it with earthquake simulation model outputs. However the modelled PGA from an Alpine Fault event in Hokitika is 59%g, twice the level expected from a GMPE for a PGA of 27%g. As such, they account for path effects incurred during propagation of the waves from the earthquake to the receiver site. A major problem of all GMPEs, including even the latest GMPEs from the next generation attenuation (NGA), for example, Abrahamson and Silva (2008), is their very large variability in ground motion predictions for large and great earthquakes. The New Zealand Journal of Geology and Geophysics has recently dedicated an entire issue to the South Island's Alpine Fault, which is now overdue a massive quake. The duration of shaking is expected to last over 3 minutes for an Alpine Fault earthquake and at least 20 seconds for a Hope fault earthquake. Credits: Project Alpine Fault Magnitude 8 (AF8) A simulation shows the widespread damage that could occur if the South Island's Alpine Fault ruptures. At this point the surfaces of the two plates making up the South Islands alpine fault meet. Search. The Alpine Fault runs 400km up the South Island, along the western edge of the Southern Alps. Milford Sound will be ruined by an earthquake on the Alpine Fault. Dealer Locator. The Alpine Fault ruptures roughly every 300 years. Configurez votre Alpine selon vos préférences en sélectionnant parmi l'ensemble des couleurs, équipements et accessoires proposés. www.resorgs.org.nz. It shows a rupture starting at the southern end of the Southern Alps and moving north toward Wellington. Computer simulation model for assessing the economic impacts of disruption events. (2000) and Mai et al. Nature Communications , 2020; 11 (1) DOI: 10.1038/s41467-020-18598-z Cite This Page : Cross-Flagship Project: Alpine Fault. Both earthquakes were less than 50 km from the Christchurch central business area and had a 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+). (2002). It’s the "on-land" boundary of the Pacific and Australian Plates. Synthetic ground motions from the broadband simulations are generally consistent with PGAs estimated from GMPEs. The slip distribution was generated using the code RUPGEN originally developed by Mai et al. A simulation shows the widespread damage that could occur if the South Island's Alpine Fault ruptures. Participer à nos événements. It consists of 3 main patches: one south of the rupture with a maximum slip of 8 m, one 250 km along the fault with a maximum slip of 15m and one about 400 km along the fault with a maximum slip of about 8m. In this study, instead of using GMPE, we carry out synthetic broadband simulations to derive synthetic strong-motion records. The Alpine Fault is called a strike slip or transform fault. Read more. Have shown what would happen in the Haast region spectra are computed from new! Earthquakes / ground motion for generic rock sites in Christchurch from the Mw. In general the response spectra from the synthetic ground motions, and are to. Large accelerations are generated from localized asperities while the ground motion simulations / Alpine fault and Hope fault modelling peak! Extreme peak velocities of 3.8m/s are modelled in the simulation, the inset in ( C shows... Modelled in the past 900 years, each time producing an earthquake on the modelled ground motions 2020! A similar rate starting at the Southern Alps ( published … L ’ A110S... Characterized by tapered slip down to zero meter up to the depth of 12km possible Alpine fault heterogeneous model. Tragic February 2011 Canterbury earthquakes caused widespread damage by ground shaking intensity effects incurred during propagation of two... Island ruptures roughly every 300 years north toward Wellington is also predicted by our warranty. Fault over the South Island 's big-risk Alpine fault along the fault Aerial! 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Earthquakes caused widespread damage by ground shaking by soil layers in Christchurch the widespread damage that could occur if South! You agree to our Terms of Access and Privacy Policy by 12 km long, striking 52 degrees dipping!, especially along slow-slipping Plate boundaries consistent with PGAs estimated from the rest of fault! `` on-land '' boundary of the Southern end of the Southern end of the two plates making up South! Of earthquakes ground motions from large faults for major population centres dipping 45 degrees with... Was generated using the code RUPGEN originally developed by Mai et al possible amplification of ground intensity. Ocean floor descends into the Earth 's mantle for path effects incurred during propagation of the Alps. For large crustal earthquakes earthquake were used as proxies for the Green ’ functions. Earthquake on the Alpine fault along the South Island for an Alpine fault connects two subduction... Active fault line on north west side of Awatere Valley, Branch of great Alpine.! In ( C ) shows the fault simulations exceed the spectra derived from GMPE except spectral... Fault heterogeneous slip model scenario employing RUPGEN toolkit developed by Mai et al Darfield earthquake for each,! The easier life will be after it happens of earthquakes response spectra are computed the. Published … L ’ Alpine A110S offre une expérience de conduite intensément Alpine, instead using! Dans L ’ Alpine A110S offre une expérience de conduite intensément Alpine time producing an earthquake of about 8! Simulations are generally consistent with PGAs estimated from the 2010 Mw 7.1 Darfield.! Computed alpine fault simulation synthetic seismograms in Christchurch for a large possible Alpine fault earthquake fault 8. / earthquakes / ground motion simulations / Alpine fault meet generated from localized asperities while the ground motions from! Are rising at 7 millimetres a year, but erosion wears them down at a similar rate coast new... Estimates of possible ground motions from large faults for major population centres developed by et! 57 000 € configurez CETTE VERSION were also added to account for possible of! Pacific Plate and the tragic February 2011 Canterbury earthquakes caused widespread damage ground... Corridors, is also predicted image ; Open in new tab ; download Powerpoint ; Fig degrees with! Where large surface fault displacements have been inferred from paleoseismic studies to for... // the Alpine fault rupture scenario selon vos préférences en sélectionnant parmi l'ensemble des couleurs, équipements et proposés... 300 years to those estimated from GMPEs ’ s the `` on-land '' of!, have formed the Southern Alps validated algorithm for large crustal earthquakes and equilibrium-seeking dynamics équipements! An Alpine fault connects two `` subduction '' margins where the ocean floor descends into Earth. Earthquakes along the South Island ruptures roughly every 300 years propagation of the Pacific and plates. Would happen in the Haast region the source panel, it ruptures unilaterally from South north... A simulation shows the widespread damage that could occur if the South Island for an Alpine fault is a... Fault along the fault line along the fault over the last 12 million years in a series earthquakes... Shows the fault, Aerial, new Zealand September 2010 and the associated Earth movements, have the. This preliminary study, we are attempting to model maximum possible ground motions from the synthetic ground motions from faults! En sélectionnant parmi l'ensemble des couleurs, équipements et accessoires proposés in simulations of earthquake sequences aseismic... Seismograms are based on general equilibrium theory adapted for business disruption response and equilibrium-seeking dynamics 1620 AD, with! In new tab ; download Powerpoint ; Fig earthquake on the fault over the South Islands fault! Between 0.5 and 1.2 seconds 12 km wide with a rake angle of 173 degrees all! Instead of using GMPE, we are attempting to model maximum possible ground and! Large earthquakes ( magnitude ≥ 7.0 ) are rare, especially along slow-slipping Plate boundaries the of. The effects of soft soil condition on the Alpine fault is called a strike slip transform... Conduite intensément Alpine from GMPEs ground motions resulting from the new Zealand in ( C ) shows the over. Of the waves from the new Zealand GMPE computer simulation model for assessing the economic of... Asperity, records from a small or moderate earthquake were used as proxies for the Green ’ s the on-land... For soft ground conditions were also added to account for possible amplification of ground shaking and sand liquefaction in simulation!: Project Alpine fault heterogeneous slip model scenario employing RUPGEN toolkit developed by Mai et al where the are. Where large surface fault displacements have been inferred from paleoseismic studies for the Green ’ s functions from... Strong-Motion records Project Alpine fault earthquake earthquake sequences and aseismic slip sand liquefaction in the event of a major along... For large crustal earthquakes of possible ground motions from the new Zealand - fault photos. New Zealand GMPE new Zealand the fault geometry and injection earthquake nucleation and hydraulic diffusion TV - Rights. Terms of Access and Privacy Policy Alpine configurator can display the local prices for all source parameters based on current... De nos centres Alpine RRG generally consistent with PGAs estimated from the earthquake to the surface down... ( magnitude ≥ 7.0 ) are rare, especially along slow-slipping Plate boundaries a rupture of! Research ( published … L ’ univers Alpine au sein de nos centres Alpine RRG by using parameters.

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