Abstract Knowledge of the acceleration spectral shape is crucial to various applications in
engineering seismology. Spectral amplitude decays rapidly at high frequencies. introduced …

Recent studies have focused on the analysis of the nature of κ 0⁠, as well as its application
for improving seismic hazard assessment. It follows that a better understanding of κ 0 (ie …

In a way perhaps not dissimilar to stress drop (Atkinson and Beresnev, 1997), the high-
frequency attenuation parameter κ (kappa), introduced by Anderson and Hough (1984), is …

A method to determine site effects and the Q factor using a reference event is described.
Spectral ratios between pairs of earthquakes and a reference one were written as …

Seismic shear-wave velocity as a function of depth for generic rock sites has been estimated
from borehole data and studies of crustal velocities, and these velocities have been used to …

In this article, we investigate, by means of simulations, the reliability of the attenuation
parameter k when it is evaluated in the presence of site amplification effects. We consider a …

One of the most commonly used parameters to describe seismic attenuation is the high‐
frequency spectral decay parameter Kappa (⁠ κ r⁠), yet the physics behind it remain little …

At high frequencies, the acceleration spectral amplitude decreases rapidly; this has been
modelled with the spectral decay factor κ. Its site component, κ 0, is used widely today in …

Kappa is a one‐parameter estimator of the spectral amplitude decay with frequency of a
seismogram. Low values (∼ 5 ms) indicate limited attenuation of high‐frequency energy …

Using weak-motion recordings of aftershocks of the 1989 Loma Prieta earthquake recorded
in Oakland, California, near the failed Nimitz Freeway, two methods have been applied to …