• Title/Summary/Keyword: RSTM

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A study of $Q_{Lg}^{-1}$ by the reversed two station method in the crust of central South Korea (Reversed Two Station Method (RSTM)에 의한 중부지방 $Q_{Lg}^{-1}$ 연구)

  • Cheong, Tae-Woong
    • Journal of the Korean Geophysical Society
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    • v.5 no.3
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    • pp.211-218
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    • 2002

  • The reversed two station method (RSTM) devised by Chun et al. (1987) is widely used to obtain $Q_{Lg}^{-1}$ for Lg wave data with hypocentral distance greater than 90 km. By applying RSTM to the Lg data of central South Korea with hypocentral distance between 95 and 381 km, we obtained high $Q_{Lg}^{-1}$. The value of $Q_{Lg}^{-1}$ is very similar with that of southeastern S. Korea, which is derived from the same method for similar distances. The studied hypocentral range seems to distort $Q_{Lg}^{-1}$ to high value because decay rate in this range is higher than 0.5, which is typical decay rate of surface wave.

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