000019702 001__ 19702
000019702 005__ 20170118182332.0
000019702 04107 $$aeng
000019702 046__ $$k2017-01-09
000019702 100__ $$aPitilakis, Kyriazis
000019702 24500 $$aHarmonized Approach To Stress Tests for Critical Infrastructures Against Natural Hazards (Strest Project): the Case of Extreme Earthquakes

000019702 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000019702 260__ $$b
000019702 506__ $$arestricted
000019702 520__ $$2eng$$aCritical Infrastructures (CIs) provide essential goods and services for modern society; they are highly integrated and have growing mutual dependencies. Recent natural events have shown that cascading failures of CIs have the potential for multiinfrastructure collapse and widespread societal and economic consequences. Moving toward a safer and more resilient society requires improved and standardized tools for hazard and risk assessment of extreme events, and their systematic application to whole classes of CIs. Among the most important assessment tools are the stress tests, designed to test the vulnerability and resilience of individual CIs and infrastructure systems in natural disasters. We present the main results of the STREST project regarding extreme event quantification with focus on extreme earthquakes and extreme earthquake consequences. We show that extremes result from the combination of stochastic, site-specific and/or explicit physical processes. The stochasticity of earthquake risk is represented by random phenomena (e.g., random earthquake clusters, spectral acceleration sigma) and model uncertainties. Site-specific aspects include geotechnical properties, near-source effects and ground shaking spatial correlations, which can locally increase the seismic risk. Finally, physical processes include maximum fault rupture propagation, earthquake interactions (i.e., aftershocks) and associated vulnerability changes, inter-hazard interactions (e.g., tsunamis, landslides), natech interactions (i.e., domino effects within the CI system following an earthquake), and additional CI interactions. Combination of all these processes tends to yield more extremes (fattening the risk curve) based upon which the CI stress test is made. The different steps of the STREST stress test method are presented in a companion paper.

000019702 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000019702 653__ $$aExtreme; critical infrastructure; stress test; uncertainty; multi-risk.

000019702 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000019702 720__ $$aPitilakis, Kyriazis$$iStojadinovic, Bozidar$$iMignan, Arnaud$$iMignan, Arnaud$$iGiardini, Domenico$$iCotton, Fabrice$$iIervolino, Iunio
000019702 8560_ $$ffischerc@itam.cas.cz
000019702 8564_ $$s1279378$$uhttps://invenio.itam.cas.cz/record/19702/files/4205.pdf$$yOriginal version of the author's contribution as presented on USB, paper 4205.
000019702 962__ $$r16048
000019702 980__ $$aPAPER