Kik-net強震記録に基づく鳥取県西部地震とその余震のラディエーションパターン及びfmaxの評価

DOI Web Site Web Site 被引用文献11件 参考文献45件

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タイトル別名
  • RADIATION PATTERN AND FMAX OF THE TOTTORI-KEN SEIBU EARTHQUAKE AND THE AFTERSHOCKS INFERRED FROM KIK-NET STRONG MOTION RECORDS
  • Kik net キョウシン キロク ニ モトヅク トットリケン セイブ ジシン ト ソノ ヨシン ノ ラディエーションパターン オヨビ fmax ノ ヒョウカ
  • Radiation pattern and fmax of the Tottori‐ken Seibu earthquake and the aftershocks inferred from KiK‐net strong motion records (in Japanese with English Abstract)
  • Radiation pattern and fmax of the Tottori‐ken Seibu earthquake and the aftershocks inferred from KiK‐net strong motion records

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説明

Radiation patterns and fmax are evaluated using Kik-net strong motion records of the 2000 Tottori-ken Seibu earthquake and the aftershocks. In order to evaluate frequency-dependent radiation patterns, an empirical model of observed radial-to-transverse ratios (R/T) for aftershocks is constructed as a function of frequency, hypocentral distance and theoretical R/T. Fmax are estimated after removing site effects including soil nonlinearity and forward directivity effects. Based on the results that decay of spectra at frequencies higher than fmax is small and that fmax are not dependent on magnitude, it is pointed out that the effects of source-controlled fmax are small.

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