Beresnev (2019) advocates the use of an earthquake slip function that produces an high‐frequency fall‐off of Fourier displacement spectra in the far field, in which denotes the angular frequency. He argues that the observed high‐frequency decay of earthquake spectra can be adequately modeled by this fall‐off, without needing to include high‐frequency attenuation at shallow depth under the site, commonly characterized as or kappa. In his abstract, Beresnev (2019, p. 822) describes source models with fall‐offs intermediate between and as “providing natural high‐cut filtering exclusively...
Article Commentary| November 12, 2019
Comment on “Interpretation of Kappa and fmax Filters as Source Effect” by Igor A. Beresnev
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Arthur Frankel; Comment on “Interpretation of Kappa and fmax Filters as Source Effect” by Igor A. Beresnev. Bulletin of the Seismological Society of America ; 109 (6): 2762–2763. doi: https://doi.org/10.1785/0120190085
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