Magnitude-Scaling Rate in Ground-Motion Prediction Equations for Response Spectra from Large Subduction Interface Earthquakes in Japan

2012 ◽  
Vol 102 (1) ◽  
pp. 222-235 ◽  
Author(s):  
J. X. Zhao ◽  
H. Xu
Keyword(s):  
Ground Motion ◽  
Response Spectra ◽  
Motion Prediction ◽  
Ground Motion Prediction Equations ◽  
Prediction Equations ◽  
Ground Motion Prediction ◽  
Magnitude Scaling

scholarly journals Single-Site Ground Motion Prediction Equations (SS-GMPE) of Response Spectra

2015 ◽  
Vol 15 (1) ◽  
pp. 1_18-1_37
Author(s):  
Nobuo TAKAI ◽  
Takahiro MAEDA ◽  
Michiko SHIGEFUJI ◽  
Tsutomu SASATANI
Keyword(s):  
Ground Motion ◽  
Response Spectra ◽  
Single Site ◽  
Motion Prediction ◽  
Ground Motion Prediction Equations ◽  
Prediction Equations ◽  
Ground Motion Prediction

Ground‐Motion Prediction Equations for Western Saudi Arabia

2019 ◽  
Vol 109 (6) ◽  
pp. 2722-2737
Author(s):  
Ryota Kiuchi ◽  
Walter D. Mooney ◽  
Hani M. Zahran
Keyword(s):  
Saudi Arabia ◽  
Ground Motion ◽  
Motion Prediction ◽  
Ground Motion Prediction Equations ◽  
Prediction Equations ◽  
Ground Motion Prediction ◽  
Crustal Earthquakes ◽  
Anelastic Attenuation ◽  
Magnitude Scaling ◽  
Crystalline Crust

Abstract Ground‐motion prediction equations (GMPEs) for western Saudi Arabia are developed by employing a mixed‐effects regression model to modify the Boore et al. (2014) Next Generation Attenuation‐West2 (NGA‐West2) project GMPEs. NGA‐West2 addressed several key issues concerning GMPEs for shallow crustal earthquakes in active tectonic regions. However, the NGA‐West2 results do not include many earthquakes in extensional regimes such as those occurring in Saudi Arabia. This deficiency is corrected by calculating a magnitude scaling of the new Saudi Arabia GMPEs compared to those of Boore et al. (2014). Furthermore, there is a clear difference in distance scaling for the Arabian GMPEs in comparison with the NGA‐West2 GMPEs. This difference is especially significant at large distances and is mainly due to lower anelastic attenuation in the crystalline crust of western Saudi Arabia. Our empirical data demonstrate the GMPEs presented here are in good agreement with observed earthquake ground motions in western Saudi Arabia.

A Comparison of the Source, Path, and Site Effects of the Strong‐Motion Records from the Western and the Southwestern Parts of China with Modern Ground‐Motion Prediction Equations

2019 ◽  
Vol 109 (6) ◽  
pp. 2691-2709 ◽  
Author(s):  
Xiaowen Lan ◽  
Hao Xing ◽  
Jun Zhou ◽  
John X. Zhao
Keyword(s):  
Ground Motion ◽  
Goodness Of Fit ◽  
Motion Prediction ◽  
Physical Parameters ◽  
Consistent Difference ◽  
Ground Motion Prediction Equations ◽  
Prediction Equations ◽  
Ground Motion Prediction ◽  
Site Class ◽  
Magnitude Scaling

Abstract This study aims at identifying ground‐motion prediction equations (GMPEs) derived from large overseas datasets that may be used for the southwestern part of China (SWC) with or without modifications, identifying the source of misfits and shedding some light on the differences of physical parameters among the three regions, that is, California, Japan, and SWC region. To achieve these objectives, correction functions of physical parameters were added to six GMPEs, including two Next Generation Attenuation‐West (NGA‐West) GMPEs, two NGA‐West2 GMPEs, a GMPE from China, and the GMPE for the shallow crustal and upper‐mantle earthquakes in Japan. The correction coefficients were determined by a reasonably large dataset, including the records from the 2008 Mw 7.9 Wenchuan earthquake. However, the data distribution with respect to magnitude is relatively poor and may not be suitable to develop a GMPE based on this dataset only. If the overall correction coefficients for a GMPE are the smallest, this GMPE will be considered as the best GMPE for the SWC data. We found that not all GMPEs can be modified to achieve the same goodness‐of‐fit level; the magnitude scaling rates from most GMPEs differ significantly from those of this dataset, especially at moderately long and long spectral periods; and the aftershock effect does not make a significant and consistent difference. We also found that three GMPEs do not model the site effect well either; the attenuation rates for the SWC region may be similar to those in California and for the shallow crust in Japan; and the magnitude scaling rate and the site class effect in the SWC region are similar to those in Japan. If an overseas GMPE is used for the SWC region, the GMPEs by Zhao, Zhou, et al. (2016) without the normal‐fault term and Abrahamson and Silva (2008) with or without modifications are recommended.

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