Calculation and Analysis of Seismic Activity Parameters b Value and v4 in the Seismic Statistical Region——Taking North China as An Example
Based on the given function in the Matlab program,this paper collects the latest modern seismic data,adopts the idea of combining historical earthquakes and modem earthquakes to obtain seismicity parameters,calculates and fits the b and v4 values of four seismic statistical regions,namely,the North China Plain seismic statistical region,the Tanlu seismic statistical region,the lower Yangtze River South Yellow Sea seismic statistical region,and the Fenwei seismic statistical region,according to different seismic stat-istical periods and magnitude segments,And compared and calculated the seismic hazard analysis with the recommended b and v4 val-ues in the compilation of the Five Generation Map,and further analyzed the impact of the latest modem seismic data on the b and v4 val-ues.The research results of this article have certain reference significance for determining the b and v4 values in earthquake statistical areas,and have practical significance for earthquake zoning,seismic safety evaluation of engineering sites,and the compilation of pro-vincial-level seismic hazard zoning.
Seismic activity parameterb Valuev4North China region