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http://dx.doi.org/10.5000/EESK.2010.14.1.035

A Study on the Best Estimate of Seismicity Parameter b-Value and Its Application for the Seismic Hazard Analysis of the Korean Peninsula  

Seo, Jeong-Moon (한국원자력연구소 종합안전평가부)
Rhee, Hyun-Me (한국원자력연구소 종합안전평가부)
Choi, In-Kil (한국원자력연구소 종합안전평가부)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.14, no.1, 2010 , pp. 35-42 More about this Journal
Abstract
The best estimate Gutenberg-Richter b-value of the Korean Peninsula was estimated through an expert panel assigned to evaluate the currently available study results. The panel's assessment yielded that the Gutenberg-Richter b-value was relatively constant over the Korean Peninsula and was independent of seismic zones with an average value of 0.96. Also, the currently most reliable four seismotechtonic structural maps were produced. The effects on the seismic hazard were analyzed by applying the results to the Shinwuljin Units 1&2 NPP site. As a result, the mean hazard level at 0.2g was decreased by about 70-80% (on the order of 0.6-0.7), and the uncertainty band at 0.2g for the reliability band of 15%-85% was significantly reduced. It was proposed, for conservatism, to use b=0.95 over all seismic zones for seismic hazard analysis in the future.
Keywords
Seismic hazard; Gutenberg-Richter b-value; uncertainty;
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Times Cited By KSCI : 1  (Citation Analysis)
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