云南数字台网谱震级的测定和地震辐射能的计算  

Estimates of spectrum magnitude and radiated energy based on Yunnan network broadband data

作　　者：王俊[1] 崔庆谷[2] 蔡舒梅[2] 孙业军[3] 

机构地区：[1]云南大学地球物理系,云南昆明650091 [2]云南省地震局监测中心,云南昆明650041 [3]江苏省地震局分析预报中心,江苏南京210014

出　　处：《云南大学学报（自然科学版）》2007年第S1期155-159,165,共6页Journal of Yunnan University(Natural Sciences Edition)

摘　　要：运用Duda等提出的谱震级测定公式,结合云南区域数字台网宽频带记录资料测定了发生在网内的中强震(4.0<ML<5.0)的谱震级M(T),并通过谱震级计算了所选地震的辐射能量E及拐角周期Tc.测定所得的最大谱震级mf与CSN给出的Ms震级相差很小,计算的能量结果与由Choy and Boatwright(1995)结合NEIC结果改进后的Gutenberg-Richter能量-震级关系测定的结果一致性较好.Using the method of Duda etc.for estimating spectrum magnitude and radiated energy of local earthquakes(4.0<ML<5.0) based on Yunnan network broadband data,as well as angle periods relatively are calculated.The results mf show a clear relation with the Ms publicized by CNS.Comparison with the radiated energy by the adjusted Gutenberg-Richter method by Choy and Boatwright(1995),it also shows that the two results fit well.

关 键 词：云南数字台网 谱震级 辐射能量 宽频带记录 

分 类 号：P315.6[天文地球—地震学]