The revised m Lg scale in six eastern provinces of China |
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Authors: | Huancheng Ge Yuewei Ni Caizhong Huang and Yongqin Li |
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Institution: | (1) Seismological Bureau of Jiangsu Province, 210024 Nanjing, China |
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Abstract: | The influence of the four different methods of measuring Lg amplitude, and the selection of different geometrical attenuation
coefficient ζ-values (=5/6 or 1) on the determination ofγ value of Lg wave are discussed.γ=0.0034±0.0001km−1 (when ζ=5/6) for six eastern provinces is redetermined. The revised magnitude calibration function ofm
Lg (mxh),q
E (Δ)=(5/6)logΔ+0.00147Δ+1.81 is deduced.
The Chinese version of this paper appeared in the Chinese edition ofActa Seismologica Sinica,13, 171–178, 1991.
Projects sponsored by the Chinese Joint Seismological Science Foundation. |
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Keywords: | Lg wave magnitude attenuation China |
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