【摘要】 考虑到PSHA模型对未来地震预测特别是大震预测能起到很好的参考分析作用,尝试结合能量分布模型对其进行了改进,并以中国及周边地区200a内的地震历史记录为基础,利用原始PSHA模型以及改进后的PSHA模型分别计算了中国及邻近地区2000～2010年间5级以上地震发生的概率,并对两种结果进行了比较分析,最终证明改进后的PSHA模型具有更好的可靠性。更多还原

【Abstract】 Considering the importance of PSHA model in earthquakes forecasting,by usingthe catalog in the 200years in China,we tried to improve the original PSHA model withcombining seismic energy distribution model,and computed the probability of earthquakes ina specific area in China with time-span Tbased on both the improved PSHA model and the original model.Finally the experimental results show that the improved model is more efficiency and reliable than the original one.更多还原