Our models and understanding of the dynamics of earthquake rupture are based largely on
estimates of earthquake source parameters, such as stress drop and radiated seismic …

We investigate the global variation of earthquake stress drops using spectra of about 2000
events of mb≥ 5.5 between 1990 and 2007. We use an iterative least squares method to …

The high-frequency seismic field near the epicenter of a large earthquake is modeled by
subdividing the fault plane into subelements and summing their contributions at the …

Nakamura's technique has been widely discussed from the theoretical point of view. Very
little information is available as far as the experimental, on-the-field standpoint is concerned …

In this study we apply a nonparametric spectral inversion scheme to a data set of
accelerograms recorded by the K-NET and KiK-net networks in Japan in order to derive …

It is well known that seismic waves are enormously amplified at lake-bed sites with respect
to hill-zone sites in Mexico City. It has been suggested that even hill-zone sites suffer …

We developed equations to predict pseudoacceleration response spectra (5% dam**),
peak ground acceleration, and peak ground velocity at free-field rock sites for intermediate …

Earthquake source spectra contain fundamental information about the dynamics of
earthquake rupture. However, the inherent tradeoffs in separating source and path effects …

The definition of a reference bedrock condition representative of a region of interest is of
great significance in seismic-hazard assessment. It is highly beneficial when ground-motion …

Stress drop, while difficult to measure reliably and at scale, is a key source parameter for
understanding the earthquake rupture process and its relationship to strong ground motion …