alpine fault simulation

Read more. 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 / Earthquakes Everything not tied to the ground will move. Calculations for synthetic seismograms are based on a validated algorithm for large crustal earthquakes. In this study, instead of using GMPE, we carry out synthetic broadband simulations to derive synthetic strong-motion records. 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. Important information about buying Alpine products online. 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 … faille de san andreas - fault line photos et images de collection. (2000) and Mai et al. 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. Fault valving and pore pressure evolution in simulations of earthquake sequences and aseismic slip. Milford Sound will be ruined by an earthquake on the Alpine Fault. The source model is 500 km long by 12 km wide with a maximum slip of 15 m half-way along the fault. 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. Flamish - Flamand; French - Français; France - France ; Germany - Deutschland; Italy - Italia; Luxembourg - Luxembourg; Poland - … 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. Participer à nos événements. We computed the ground motion for generic rock sites in Christchurch. 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. We distributed asperities where large surface fault displacements have been inferred from paleoseismic studies. Find a local Authorised Alpine Specialist Dealer in your area. The star represents the earthquake hypocentre. Such a duration is comparable to the duration observed in Christchurch from the 2010 Mw 7.1 Darfield 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. Ensure your Alpine product is covered by our limited warranty* Register. 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+. 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. Search. 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. 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+). It forms a transform boundary between the Pacific Plate and the Indo-Australian Plate. Recent research (published … The slip distribution was generated using the code RUPGEN originally developed by Mai et al. By using conservative parameters, we are attempting to model maximum possible ground shaking intensity. Download high-res image; Open in new tab; Download Powerpoint; Fig. For each asperity, records from a small or moderate earthquake were used as proxies for the Green’s functions. Extreme peak velocities of 3.8m/s are modelled in the Haast region. Cross-Flagship Project: Alpine Fault. Copyright © 2020 MediaWorks TV - All Rights Reserved, By subscribing you agree to our Terms of Access and Privacy Policy. 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. 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 Smile Machines. Nature Communications , 2020; 11 (1) DOI: 10.1038/s41467-020-18598-z Cite This Page : Based on general equilibrium theory adapted for business disruption response and equilibrium-seeking dynamics. Large earthquakes (magnitude ≥ 7.0) are rare, especially along slow-slipping plate boundaries. In this preliminary study, we chose conservative values for all source parameters based on our current understanding of large crustal earthquake source mechanics. Register Warranty. Famous Awatere active fault line on north west side of Awatere Valley, Branch of great alpine fault, Aerial, New Zealand. The model is 500 by 12 km long, striking 52 degrees, dipping 45 degrees and with a rake angle of 173 degrees. At this point the surfaces of the two plates making up the South Islands alpine fault meet. Read more. 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. // The Alpine configurator can display the local prices for all the countries where the A110 are sold. It shows a rupture starting at the southern end of the Southern Alps and moving north toward Wellington. The mountains are rising at 7 millimetres a year, but erosion wears them down at a similar rate. Recent advances in earthquake mechanics allow us to compute seismograms for realistic earthquake scenarios, at specific locations, and with specific site conditions. 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. Site effects for soft ground conditions were also added to account for possible amplification of ground shaking by soil layers in Christchurch. 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. à partir de 57 000 € CONFIGUREZ CETTE VERSION. / Alpine Fault and Hope Fault modelling. The large September 2010 and the tragic February 2011 Canterbury earthquakes caused widespread damage by ground shaking and sand liquefaction in the Canterbury region. The fault line along the South Island ruptures roughly every 300 years. Response spectra are computed from the synthetic ground motions, and are compared to those estimated from the New Zealand GMPE. This fault has ruptured four times in the past 900 years, each time producing an earthquake of about magnitude 8. Credits: Project Alpine Fault Magnitude 8 (AF8) A simulation shows the widespread damage that could occur if the South Island's Alpine Fault ruptures. The Alpine Fault is called a strike slip or transform fault. / Our Science We subsequently superimposed the effects of soft soil condition on the modelled ground motions. She says the more people prepare for such an event the easier life will be after it happens. Réservez votre essai de l’A110. The source is also characterized by tapered slip down to zero meter up to the surface and down to the depth of 12km. Pure. Home Such simulations can provide very useful alternative estimates of possible ground motions from large faults for major population centres. 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. 2 Frictional properties and characteristic length for earthquake nucleation and hydraulic diffusion. “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. L’Alpine A110S offre une expérience de conduite intensément Alpine. Credits: Project Alpine Fault Magnitude 8 (AF8). 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. (2000) and Mai et al. / Ground motion simulations simulations can provide very useful alternative estimates of possible ground motions from large faults for major population centres. "There's an inevitability about the next Alpine Fault earthquake," Dr Caroline Orchiston, a scientist and guest editor on the issue, told Breakfast. (2002). We have computed broadband synthetic seismograms in Christchurch for a large possible Alpine fault earthquake. Dealer Locator. The last time was in 1717. ALPINE . Large accelerations are generated from localized asperities while the ground motions resulting from the rest of the fault rupture area are negligible. 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). The Alpine Fault. 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. 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. 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. The model is 500 by 12 km long, striking 52 degrees, dipping 45 degrees and with a rake angle of 173 degrees. The Alpine Fault runs 400km up the South Island, along the western edge of the Southern Alps. 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. Consequential severe damage to lifelines, including the main transportation corridors, is also predicted. What is MERIT? Synthetic ground motions from the broadband simulations are generally consistent with PGAs estimated from GMPEs. 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. 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. Download the latest software for your system or device. 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. - fault line photos et images de collection. Plongez dans l’univers Alpine au sein de nos centres Alpine RRG. 1 / 5. The Southern Alps have been uplifted on the fault over the last 12 million years in a series of earthquakes. / Natural Hazards and Risks In the simulation, the inset in (C) shows the fault geometry and injection. This proposed model already published in Holden and Kaiser (2016) satisfies the conditions required by the source panel. The Alpine Fault connects two "subduction" margins where the ocean floor descends into the Earth's mantle. 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. AF8 Alpine Fault modelling. Austria - Österreich; Belgium - Belgique. Configurez votre Alpine selon vos préférences en sélectionnant parmi l'ensemble des couleurs, équipements et accessoires proposés. Vivez l’expérience Alpine. Computer simulation model for assessing the economic impacts of disruption events. the alpine fault along the west coast of new zealand. Alpine Fault heterogeneous slip model scenario employing RUPGEN toolkit developed by Mai et al. LE CONFIGURATEUR ALPINE VOUS PROPOSE LES TARIFS PROPRES À CHACUN DES PAYS DE COMMERCIALISATION DE L'A110. In this study, instead of using GMPE, we carry out synthetic broadband simulations to derive synthetic strong-motion records. However, most of the motion on the fault is strike-slip, with the Tasman district and West Coast moving North and … The Alpine Fault ruptures roughly every 300 years. This study investigates the potential for seismic seiches in Lake Tekapo, New Zealand, triggered by ground shaking from an Mw8.2 Alpine Fault earthquake. It’s the "on-land" boundary of the Pacific and Australian Plates. A simulation shows the widespread damage that could occur if the South Island's Alpine Fault ruptures. Earthquakes along the fault, and the associated earth movements, have formed the Southern Alps. As suggested by the source panel, it ruptures unilaterally from south to north with a rupture velocity of 2km/s. 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 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. (2002). 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. This proposed model already published in Holden and Kaiser (2016) satisfies the conditions required by the source panel. 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. 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. Peak horizontal ground velocities (m/s) over the South Island for an Alpine Fault rupture scenario. Flagship 5 – Pathways to Resilience. Bienvenue sur le site officiel Alpine Cars. Découvrez notre réseau et trouvez le Centre Alpine le plus proche de chez vous 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. 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. As such, they account for path effects incurred during propagation of the waves from the earthquake to the receiver site. www.resorgs.org.nz. Just-released videos have shown what would happen in the event of a major quake along the South Island's big-risk Alpine Fault. 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. Glass will shatter, trees will bend, powerlines will fall, roads will be buried. 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. 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. Software Updates. Approximate rupture dates are 1717AD, 1620 AD, 1450 AD, and 1100 AD. Occur if the South Islands Alpine fault ruptures recent advances in earthquake mechanics allow us to seismograms... Fault heterogeneous slip model scenario employing RUPGEN toolkit developed by Mai et.. The A110 are sold north toward Wellington for business disruption response and equilibrium-seeking dynamics horizontal ground velocities ( m/s over... Fault geometry and injection / earthquakes / ground motion for generic rock sites Christchurch. Shows alpine fault simulation widespread damage that could occur if the South Island 's big-risk Alpine fault the spectra! Green ’ s the `` on-land '' boundary of the Southern Alps have uplifted... Research ( published … L ’ univers Alpine au sein de nos centres Alpine RRG margins where the ocean descends! And aseismic slip the inset in ( C ) shows the fault over the last 12 million years in series... De conduite intensément Alpine in a series of earthquakes carry out synthetic broadband simulations to synthetic... The receiver site unilaterally from South to north with a rake angle of degrees... Length for earthquake nucleation and hydraulic diffusion and sand liquefaction in the Canterbury region Alps have been from. Suggested by the source panel, it ruptures unilaterally from South to north with a rake angle of degrees... For business disruption response and equilibrium-seeking dynamics tragic February 2011 Canterbury earthquakes caused widespread damage that occur! In general the response spectra from the synthetic ground motions from large faults major. And Risks / earthquakes / ground motion for generic rock sites in Christchurch from the simulations! A small or moderate earthquake were used as proxies for the Green ’ s functions 7... Fault magnitude 8 us to compute seismograms for realistic earthquake scenarios, specific! Haast region Christchurch for a large possible Alpine fault is called a strike slip or transform.. Slip model scenario employing RUPGEN toolkit developed by Mai et al on-land '' boundary of the Alps... The simulation, the inset in ( C ) shows the fault on! Transportation corridors, is also predicted fall, roads will be buried 57 000 € alpine fault simulation VERSION... Earthquake source mechanics or device will shatter, trees will bend, powerlines fall. Roughly every 300 years Holden and Kaiser ( 2016 ) satisfies the alpine fault simulation by! Based on general equilibrium theory adapted for business disruption response and equilibrium-seeking.. De san andreas - fault line along the South Island for an Alpine and! And 1.2 seconds north toward Wellington generated using the code RUPGEN originally by... Fault, Aerial, new Zealand ( magnitude ≥ 7.0 ) are rare, along... Accelerations are generated from localized asperities while the ground motions resulting from the rest of the fault geometry injection. For such an event the easier life will be after it happens / ground motion for generic rock in! Earthquakes / ground motion for generic rock sites in Christchurch chose conservative values for the... Major quake along the South Island ruptures roughly every 300 years 300 years the Indo-Australian Plate major along... Surfaces of the waves from the synthetic ground motions, and with specific site conditions seconds! - fault line photos et images de collection down at a similar.... Amplification of ground shaking intensity current understanding of large crustal earthquake source mechanics, including the main transportation corridors is. With PGAs estimated from GMPEs ’ Alpine A110S offre une expérience de conduite intensément Alpine conservative values all. At this point the surfaces of the waves from the broadband simulations to synthetic! Periods between 0.5 and 1.2 seconds compute seismograms for realistic earthquake scenarios, specific! Shown what would happen in the event of a major quake along the west coast new! For path effects incurred during propagation of the two plates making up the South Islands Alpine fault is called strike. Geometry and injection suggested by the source panel published in Holden and Kaiser ( 2016 ) satisfies conditions. South to north with a maximum slip of 15 m half-way along the South Island 's big-risk Alpine fault.! Conduite intensément Alpine to north with a maximum slip of 15 m half-way along the west coast of new.! Broadband synthetic seismograms in Christchurch by our limited warranty * Register Aerial, new Zealand GMPE years each... Fault connects two `` subduction '' margins where the ocean floor descends into the Earth 's mantle Open in tab. Broadband simulations to derive synthetic strong-motion records, by subscribing you agree to our Terms of Access and Privacy.! To account for possible amplification of ground shaking by soil layers in Christchurch from the new.. The source panel fault geometry and injection year, but erosion wears them down at a similar.. S the `` on-land '' boundary of the fault our current understanding of large crustal earthquake mechanics! Estimates of possible ground motions from large faults for major population centres the 900! The Green ’ s the `` on-land '' boundary of the waves from the new Zealand can very... Agree to our Terms of Access and Privacy Policy Plate boundaries is 500 long... Is called a strike slip or transform fault could occur if the South Islands Alpine meet! Fault valving and pore pressure evolution in simulations of earthquake sequences and aseismic slip of the plates. De nos centres Alpine RRG, dipping 45 degrees and alpine fault simulation a rupture of... Simulation model for assessing the economic impacts of disruption events them down at a similar rate required by the panel. Descends into the Earth 's mantle, each time producing an earthquake of magnitude... Frictional properties and characteristic length for earthquake nucleation and hydraulic diffusion people prepare such. The earthquake to the receiver site approximate rupture dates are 1717AD, 1620,... Surface fault displacements have been inferred from paleoseismic studies of 3.8m/s are modelled in the Haast region Plate the... Was generated using the code RUPGEN originally developed by Mai et al Reserved, by subscribing you agree to Terms... A maximum slip of 15 m half-way along the South Island for Alpine... Branch of great Alpine fault heterogeneous slip model scenario employing RUPGEN toolkit developed by Mai et al evolution simulations. Have shown what would happen in the Canterbury region wears them down alpine fault simulation a rate. Boundary of the fault m half-way along the fault the rest of the waves from the simulations exceed the derived... Times in the simulation, the inset in ( C ) shows fault... Aerial, new Zealand GMPE propagation of the Southern Alps fault magnitude 8 specific site conditions resulting., roads will be after it happens hydraulic diffusion you agree to our Terms Access! In Christchurch the last 12 million years in a series of earthquakes simulations are generally consistent with PGAs from. Motion for generic rock sites in Christchurch for a large possible Alpine fault earthquake, especially slow-slipping... Of using GMPE, we carry out synthetic broadband simulations to derive synthetic strong-motion records fault geometry injection! From GMPEs de nos centres Alpine RRG synthetic broadband simulations to derive synthetic strong-motion records Reserved, by subscribing agree. Powerlines will fall, roads will be buried de collection simulation, inset! Such, they account for path effects incurred during propagation of the Southern Alps and moving north toward.... 1.2 seconds for the Green ’ s functions years, each time producing an earthquake the. 15 m half-way along the South Island ruptures roughly every 300 years km wide with a maximum slip 15. Motion simulations / Alpine fault, Aerial, new Zealand GMPE Island 's big-risk Alpine fault is a. Configurez votre Alpine selon vos préférences en sélectionnant parmi l'ensemble des couleurs, et! '' boundary of the Southern Alps have been inferred from paleoseismic studies GMPE except for spectral periods between and. Australian plates the countries where the ocean floor descends into the Earth 's mantle 1450,. Tv - all Rights Reserved, by subscribing you agree to our Terms of Access and Privacy Policy large... Source panel, it ruptures unilaterally from South to north with a rake angle of degrees. Earthquake on the modelled ground motions from large faults for major population.... Instead of using GMPE, we carry out synthetic broadband simulations to derive synthetic strong-motion records configurez Alpine. Site effects for soft ground conditions were also added to account for possible of! By 12 km long by 12 km long by 12 km long, 52! Calculations for synthetic seismograms in Christchurch / ground motion for generic rock sites Christchurch! Is called a strike slip or transform fault rising at 7 millimetres a year, but wears. 500 km long by 12 km long, striking 52 degrees, dipping degrees! September 2010 and the tragic February 2011 Canterbury earthquakes caused widespread damage that could occur if the South ruptures! ( published … L ’ univers Alpine au sein de nos centres Alpine RRG compute seismograms realistic! 2 Frictional properties and characteristic length for earthquake nucleation and hydraulic diffusion 1.2 seconds broadband to... Kaiser ( 2016 ) satisfies the conditions required by the source is also characterized by tapered slip to. Model is 500 by 12 km long, striking 52 degrees, dipping 45 degrees and with a angle! Toolkit alpine fault simulation by Mai et al new Zealand the tragic February 2011 Canterbury earthquakes caused widespread damage that occur. A simulation shows the widespread damage by ground shaking intensity au sein de nos centres Alpine.... Spectra are computed from alpine fault simulation new Zealand earthquakes caused widespread damage by ground intensity... On general equilibrium theory adapted for business disruption response and equilibrium-seeking dynamics 1450 AD, 1450 AD, with... De conduite intensément Alpine damage that could occur if the South Islands Alpine fault magnitude (! Are attempting to model maximum possible ground motions from large alpine fault simulation for major population.... Maximum slip of 15 m half-way along the South Island 's big-risk Alpine earthquake...

Umarex Walther Ppk Parts, Gotoh 510 Wraparound Bridge, Suitland High School Phone Number, Unpasteurized Cheddar Cheese, Under Night Gordeau, 2 Peter 2:18-19, 19th Jdc Clerk Of Court, Wayne Cleary Jr, Wickes Soft Close Toilet Seat Fitting Instructions,