000004529 001__ 4529
000004529 005__ 20141118192703.0
000004529 0177_ $$2doi$$a10.3850/978-981-07-2219-7_P237

000004529 0247_ $$210.3850/978-981-07-2219-7_P237
$$adoi
000004529 04107 $$aeng
000004529 046__ $$k2012-05-23
000004529 100__ $$aYucemen, M. Semih
000004529 24500 $$aSeismic Hazard Assessment based on a Random Field Model

000004529 24630 $$n5.$$pProceedings of the 5th Asian-Pacific Symposium on Structural Reliability and its Applications
000004529 260__ $$bResearch Publishing, No:83 Genting Lane, #08-01, Genting Building, 349568 SINGAPORE
000004529 506__ $$arestricted
000004529 520__ $$2eng$$aA random field model is proposed to estimate the seismic hazard associated with linearly extending seismic sources like faults. An earthquake having at least a magnitude of m is assumed to occur whenever the total strain energy accumulated over the potential rupture plane exceeds the level corresponding to this magnitude. The spatial and temporal correlation characteristics of the resulting energy random field are taken into consideration explicitly. The seismic hazard prediction model is based on the asymptotic results of the level crossing theory of homogeneous random functions. Significant analytical simplicity is achieved by using a separable correlation model for the space and time components of the random field and by introducing the scale of fluctuation as a measure of correlation. 
 A realistic approach for seismic hazard prediction should be based on models where the spatial and temporal components are treated simultaneously within the context of random field theory. The proposed model follows this approach and is expected to give better results than the classical seismic hazard analysis models because it describes the physical problem more realistically. 
 The model introduces a substantial improvement over the simple Poisson model for earthquake sequences, since the exceedance (excursion) rates computed herein are adjusted for the degree of correlation in the space and time domains; in this respect, they differ from the exceedance rates of the simpler models, which ignore these dependencies completely. Consideration of spatial correlation by use of random field concepts is also an improvement over the renewal type models that take into consideration only the temporal dependence of earthquakes.
 Earthquakes that have recorded since 1907 along the most active segment of the North Anatolian fault are compiled to form an up to date seismic activity data base. This data base is then used to show the implementation of the proposed random field model for the assessment of seismic hazard.

000004529 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000004529 653__ $$aSeismic hazard, Random field, Scale of fluctuation, North anatolian fault, Earthquake.

000004529 7112_ $$a5th Asian-Pacific Symposium on Structural Reliability and its Applications$$cSingapore (SG)$$d2012-05-23 / 2012-05-25$$gAPSSRA2012
000004529 720__ $$aYucemen, M. Semih$$iAkkaya, Aysen D.
000004529 8560_ $$ffischerc@itam.cas.cz
000004529 8564_ $$s472011$$uhttps://invenio.itam.cas.cz/record/4529/files/P237.pdf$$yOriginal version of the author's contribution as presented on CD, .
000004529 962__ $$r4180
000004529 980__ $$aPAPER