Between-event and between-station variability observed in the Fourier and response spectra domains: comparison with seismological models

Bindi, Dino; Spallarossa, Daniele; Pacor, Francesca

doi:10.1093/gji/ggx217

Cited by 60 publications

(47 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The spectral ratios obtained for all earthquake pairs confirm that the relative difference of the between‐event residuals can be interpreted as changes in the earthquake frequency content of the ground motion records in the frequency band considered here (0.5–10 Hz). These results are consistent with recent tests conducted by Bindi et al () who have shown that the general trends observed in the Fourier domain (e.g., the between‐event dependence on stress drop) are also observed for the response spectra even if, as expected from their definition, response spectra are smoothing the frequency‐to‐frequency variability of ground motions, in particular, at frequencies larger than 10 Hz. The theoretical dependencies between Fourier and Response spectra have been analyzed in detail by Bora et al ().…”

Section: Discussionsupporting

confidence: 92%

“…Under certain conditions taking into account the limitations of the response spectra compared to the Fourier spectra, GMPEs may be used for applications that go well beyond seismic hazard assessment. In particular, between‐event residuals, which have been shown to be correlated with the stress drops (Bindi et al, , ; Oth et al, ), can be spatially analyzed in order to identify variations of the frictional properties of large seismogenic faults (Piña‐Valdés et al, ). The findings presented in this work are consistent with the downdip segmentation of the frictional properties on subduction interface proposed by Lay et al () and also with the main features of the frictional segmentation model proposed for Miyagi area by Satriano et al ().…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Insights on the Japanese Subduction Megathrust Properties From Depth and Lateral Variability of Observed Ground Motions

2018

View full text Add to dashboard Cite

Two ground motion prediction equation models for subduction zones have been tested using a public ground motion database of the KiK‐net records obtained by automated processing protocols (Dawood et al., 2016, https://doi.org/10.1193/071214EQS106). The database contains records of more than 700 interface earthquakes that occurred on the Japan subduction between 1998 and 2012. The Zhao et al. (2006, https://doi.org/10.1785/0120050122) ground motion prediction equation was shown to be the best suited model for the region. It was then used as backbone to analyze the variability of ground motion records. The residuals between observed and predicted ground motions have been analyzed to study the spatial variation of the earthquakes' ground motion frequency content on the Japan megathrust. This analysis revealed a depth dependency of generated ground motions consistent with the downdip segmentation proposed for subduction interfaces (Lay et al., 2012, https://doi.org/10.1029/2011JB009133), a regional ground motion dependency that may be related with lateral variations of the mechanical properties of the subduction interface and a high‐frequency radiations drop in the earthquake sequence that preceded the Tohoku‐Oki earthquake Mw 9.0. The regional ground motion dependency suggests the existence of different domains along trench of the Japan subduction megathrust that control the ground motions and the wave radiation patterns of interface earthquakes. The location of their boundaries is consistent with the extension of the rupture of the 2011 Tohoku‐Oki earthquake, with pre‐Tohoku interseismic coupling, and with the free air gravity anomalies.

show abstract

Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Insights on the Japanese Subduction Megathrust Properties From Depth and Lateral Variability of Observed Ground Motions

2018

View full text Add to dashboard Cite

show abstract

“…In our approach, we integrate known, crustal physical properties into source-to-site, path-specific ground motion models. This is similar in nature to approaches using physical parameters or constraints in ground motion models from source properties, such as stress drop (Ameri et al, 2017;Baltay et al, 2017;Bindi et al, 2017;Kotha et al, 2016;Oth et al, 2017), or incorporation of kappa as a site parameter (e.g., Laurendeau et al, 2013). We use a dense data set from Southern California of over 123,000 peak ground acceleration (PGA) values from earthquakes of magnitudes~1 < M < 4.5 and a region-specific GMPE to find pathspecific residuals or deviations away from an average ground-motion per recording (Sahakian et al, 2018).…”

Section: Introductionmentioning

confidence: 91%

Ground Motion Residuals, Path Effects, and Crustal Properties: A Pilot Study in Southern California

et al. 2019

View full text Add to dashboard Cite

To improve models of ground motion estimation and probabilistic seismic hazard analyses, the engineering seismology field is moving toward developing fully nonergodic ground motion models, models specific for individual source‐to‐site paths. Previous work on this topic has examined systematic variations in ground‐motion along particular paths (from either recorded or simulated earthquake data) and has not included physical properties of the path. We present here a framework to include physical path properties, by seeking correlations between ground motion amplitudes along specific paths and crustal properties, specifically seismic velocity and anelastic attenuation, along that path. Using a large data set of small‐magnitude earthquakes recorded in Southern California, we find a correlation between the gradient of seismic S wave velocity and the path term residual, after accounting for an average geometric spreading and anelastic attenuation, indicating that heterogeneity in crustal velocity primarily controls the path‐specific attenuation. Even in aseismic regions, details of path‐specific ground motion prediction equations can be developed from crustal structure and property data.

show abstract

“…(1) was built for both the Fourier spectra and acceleration response spectra (SA). Although the SA does not depend linearly on the input motion, Bindi et al (2017) showed that the amplification functions obtained for SA (GIT_SA) are comparable to those obtained for FAS, only differing in the high frequency range and overall amplification levels. The advantage of providing the spectral amplification in terms of SA instead of FAS is that they can be used directly to multiply the reference spectrum on rock to obtain the corresponding sitespecific response spectrum.…”

Section: Methodologies and Productsmentioning

confidence: 73%

Seismological analyses of the seismic microzonation of 138 municipalities damaged by the 2016–2017 seismic sequence in Central Italy

Priolo

Pacor

Spallarossa

et al. 2019

Bull Earthquake Eng

Self Cite

View full text Add to dashboard Cite

This paper describes the seismological analyses performed within the framework of the seismic microzonation study for the reconstruction of 138 municipalities damaged by the 2016-2017 sequence in Central Italy. Many waveforms were recorded over approximately 15 years at approximately 180 instrumented sites equipped with permanent or temporary stations in an area that includes all the damaged localities. Site response was assessed using earthquake and noise recordings at the selected stations through different parameters, such as spectral amplification curves, fundamental resonance frequencies, site-specific response spectra, and average amplification factors. The present study was a collaboration of many different institutions under the coordination of the Italian Center for Seismic Microzonation and its applications. The results were homogenized and gathered into site-specific forms, which represent the main deliverable for the benefit of Italian Civil Protection. It is remarkable that the bulk of this study was performed in a very short period (approximately 2 months) to provide quantitative information for detailed microzonation and future reconstruction of the damaged municipalities.

show abstract

Between-event and between-station variability observed in the Fourier and response spectra domains: comparison with seismological models

Abstract: . (2017): Between-event and between-station variability observed in the Fourier and response spectra domains: comparison with seismological models.

Cited by 60 publications

References 44 publications

Insights on the Japanese Subduction Megathrust Properties From Depth and Lateral Variability of Observed Ground Motions

Insights on the Japanese Subduction Megathrust Properties From Depth and Lateral Variability of Observed Ground Motions

Ground Motion Residuals, Path Effects, and Crustal Properties: A Pilot Study in Southern California

Seismological analyses of the seismic microzonation of 138 municipalities damaged by the 2016–2017 seismic sequence in Central Italy

Contact Info

Product

Resources

About