Ground Motion Relations for Eastern North American Earthquakes

Nuttli, Otto W.; Herrmann, Robert B.

doi:10.1016/b978-0-444-98956-7.50020-9

Cited by 6 publications

(1 citation statement)

References 7 publications

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“…These methods range from deterministic modeling (Bolt, 1987;Atkinson and Somerville, 1994), stochastic modeling (Boore. 1983;Boore and Atkinson, 1987;Atkinson and Boore, 1995;Atkinson and Somerville, 1994), to entirely empirical modeling (Fukushima, 1996;Anderson and Lei, 1994;Youngs et al, 1995;Joyner and Boore, 1981;Campbell, 1985;Campbell and Bozorgnia, 1994;Nuttli and Herrmann, 1987;Sabetta and Pugliese, 1996). Such models are important in engineering seismology for their role in predicting the ground motion from future events for which the magnitude and location may be constrained, but little is known about the details of the rupture process.…”

Section: Recent Progress On Earthquake Source 131 Source Spectrum and Mechanismmentioning

confidence: 99%

Global comparisons of earthquake source spectra.

Shengzao¹

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A key question in earthquake seismology is whether earthquake sources in different tectonic regions are functionally equivalent in terms of radiated ground motion. This thesis compares the apparent earthquake source radiation for six different tectonic regions covering Japan, Mexico, Turkey, California, British Columbia (B.C., western Canada), and eastern North America (ENA). The source, path and site effects were systematically separated from the observed spectra to the extent possible, to allow interregional comparisons of apparent source radiation.Large Fourier spectra databases were developed for both horizontal and vertical components over all distances for earthquakes of magnitude 2.5 to 7.5. Regional parameters characterizing source, path, and site properties, including crustal and nearsurface site amplifications, were thoroughly investigated to separate the corresponding spectral responses, and thereby isolate apparent source processes.Effects on observed spectra of geometrical spreading, regional anelastic scattering, crustal and site amplification and deamplifications were removed to obtain the source spectra. Fourier spectra corrected for the attenuation effects to a reference hypocentral distance of R = 1 km are referred to as "Rl spectra" or "1-km spectra"; the Rl spectra corrected for crustal/near-surface site amplification effects and kappa (highfrequency spectral decay) effects are referred to as "apparent source spectra". The Rl source spectra and apparent source spectra were derived for both horizontal and vertical iii

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Section: Recent Progress On Earthquake Source 131 Source Spectrum and Mechanismmentioning

confidence: 99%

Global comparisons of earthquake source spectra.

Shengzao¹

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Strong Motion Seismology

Anderson

1991

Reviews of Geophysics

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Consistency of ground-motion predictions from the past four decades: peak ground velocity and displacement, Arias intensity and relative significant duration

Douglas

2012

Bull Earthquake Eng

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Due to the limited observational datasets available for the derivation of groundmotion prediction equations (GMPEs) there is always epistemic uncertainty in the estimated median ground motion. Since the quality and quantity of strong-motion datasets is constantly increasing it would be expected that the epistemic uncertainty in ground-motion prediction (related to lack of knowledge and data) is decreasing. This article is a continuation of the study of Douglas (2010) for ground-motion parameters other than peak ground acceleration (PGA) and elastic response spectral acceleration (SA). The epistemic uncertainty in the prediction of peak ground velocity and displacement, Arias intensity and relative significant duration is investigated by plotting predictions from dozens of GMPEs for these parameters against date of publication for three scenarios. In agreement with the previous study, all ground-motion parameters considered show high epistemic uncertainty (often even higher than previously reported for PGA and SA), suggesting that research efforts for the development of GMPEs for these parameters should continue and that it is vital that this uncertainty is accounted for in seismic hazard assessments. The epistemic uncertainty in the prediction of relative significant duration, however, appears to be much lower than any other strong-motion parameter, which suggests that currently available GMPEs for this intensity measure are sufficiently mature.

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Ground Motion Relations for Eastern North American Earthquakes

Cited by 6 publications

References 7 publications

Global comparisons of earthquake source spectra.

Global comparisons of earthquake source spectra.

Strong Motion Seismology

Consistency of ground-motion predictions from the past four decades: peak ground velocity and displacement, Arias intensity and relative significant duration

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