Global Seismic Hazard Assessment Based on Area Source Model and Seismicity Data

Y. Chen, John Liu (), L. Chen (), Q. Chen and L. Chan ()
Authors registered in the RePEc Author Service: Qing Shu Chen

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 1998, vol. 17, issue 3, 267 pages

Abstract: A global seismic hazard assessment was conducted using the probabilistic approach in conjunction with a modified means of evaluating the seismicity parameters. The earthquake occurrence rate function was formulated for area source cells from recent instrumental earthquake catalogs. For the statistical application of the G–R relation of each source cell, the upper- and lower-bound magnitudes were determined from, respectively, historical earthquake data using a Kernel smoothing operator and detection thresholds of recent catalogs. The seismic hazard at a particular site was obtained by integrating the hazard contribution from influencing cells, and the results were combined with the Poisson distribution to obtain the seismic hazard in terms of the intensity at 10% probability of exceedance for the next 50 years. The seismic hazard maps for three countries, constructed using the same method, agree well with the existing maps obtained by different methods. The method is applicable to both oceanic and continental regions, and for any specific duration of time. It can be used for those regions without detailed geological information or where the relation between existing faults and earthquake occurrence is not clear. Copyright Kluwer Academic Publishers 1998

Keywords: global seismic hazard; area source model; seismicity parameter; Kernel function (search for similar items in EconPapers)
Date: 1998
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Citations: View citations in EconPapers (3)

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DOI: 10.1023/A:1008094016624

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