基于孕震断层多锁固段脆性破裂理论,以板块边界和区域性大断裂作为主控条件,修订了1。0版环太平洋、大洋海岭与大陆裂谷地震带地震区划分图。从孕育周期界定与主震事件判识角度,采用新发展的最小有效性震级确定方法和地震事件量级匹配原则,先修订不合理的地震震级参数,而后界定地震区孕育周期、判识其主震事件并分析其未来震情,得到比之前分析更好的结果。本文所得结论可供有关国家相关部门参考,以采取有效防震减灾措施。
Based on the brittle failure theory of multiple locked patches in a seismogenic fault system,the zoning scheme of most seismic zones related to seismic belts of the Circum-Pacific,ocean ridge and continental rift in the map version 1. 0 is revised,where the division boundaries between seismic zones are generally constrained by plate boundaries and major regional faults. Using the recognition method of the main shock event and adopting the determination method of minimum valid magnitude and magnitude matching principle, we first revise the unreasonable magnitude parameter of earthquakes and then re-identify the mainshock event and re-analyze the seismic tendency of these seismic zones. It is shown here that the present results are better than the previous ones,which could be referenced by departments concerned.