Short-period Spectral Level and Path Characteristics of The 2016 Kumamoto Earthquake Using Spectral Inversion Method

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  • スペクトルインバージョン解析に基づく2016年熊本地震の震源・伝播経路特性の評価

Abstract

<p>The Q value and short-period spectral level of the 2016 Kumamoto earthquake and its aftershocks are evaluated using spectral inversion method. The estimated short-period spectral levels A are 1.3∼1.8 times larger than expected by Satoh's empirical relation for strike-slip earhquakes. But, the estimated A is similar to that the Dan et al's empirical relation. The estimated Q value is modeled as 79f0.78 in a frequency range of 0.5-10.0Hz.</p>

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