【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.更多还原

【Abstract】 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.更多还原