Comparison of the Recorded Frequency Content Parameters of the 2013 Lushan Earthquake with Empirical Model Predictions

2018 ◽  
Vol 108 (6) ◽  
pp. 3358-3367 ◽  
Author(s):  
Yuzhu Bai
Keyword(s):  
Empirical Model ◽  
Lushan Earthquake ◽  
Frequency Content ◽  
Model Predictions ◽  
2013 Lushan Earthquake

Comparison of the Recorded Significant Duration of the Lushan Earthquake with Empirical Model Predictions

2019 ◽  
Vol 109 (6) ◽  
pp. 2325-2339
Author(s):  
Yuzhu Bai
Keyword(s):  
Empirical Model ◽  
High Frequency ◽  
Goodness Of Fit ◽  
Free Field ◽  
Empirical Models ◽  
Lushan Earthquake ◽  
Arias Intensity ◽  
Significant Duration ◽  
Model Predictions ◽  
Frequency Components

Abstract Using 72 free‐field accelerograms with the closest site‐rupture distances (Rrup) less than 300 km, this study calculates the recorded significant duration of the 2013 Mw 6.7 Lushan earthquake and compares the calculated results with empirical model predictions. The significant duration parameters are for 5%–75% (D5–75) and 5%–95% (D5–95) of the normalized Arias intensity. For Rrup<150  km, the models of Du and Wang (2017; hereafter, DW17) are relatively less biased in predicting the Lushan significant duration. The goodness‐of‐fit results indicate that the models of DW17, Afshari and Stewart (2016; hereafter, AS16), and Kempton and Stewart (2006; hereafter, KS06) are the best models to predict D5–75 of the Lushan event. Meanwhile, most of the selected empirical models predict the Lushan event better for D5–75 than for D5–95. Moreover, the enrichment of high‐frequency components of ground motion causes the recorded D5–95 of the Lushan event to be larger than median predictions in high‐frequency bands. Among the five selected earthquakes (1994 Mw 6.7 Northridge, 2003 Mw 6.5 San Simeon, 2004 Mw 6.6 Niigata, 2008 Mw 7.9 Wenchuan, and 2013 Mw 6.7 Lushan earthquakes), the Lushan earthquake is predicted relatively better by all empirical models. The intraevent and interevent residuals of AS16 model from China earthquakes are within the scatter of those from the events in the Next Generation Attenuation‐West2 (NGA‐West2) database, indicating that the China earthquake significant duration is consistent with the model developed through the NGA‐West2 database. Furthermore, the regional dependences of significant duration are not observed for the Wenchuan or the Lushan earthquake.

scholarly journals New insights into the generation of the 2013 Lushan Earthquake (Ms7.0), China

2015 ◽  
Vol 120 (5) ◽  
pp. 3507-3526 ◽  
Author(s):  
Zhi Wang ◽  
Jinrong Su ◽  
Cunxi Liu ◽  
Xuelin Cai
Keyword(s):  
Lushan Earthquake ◽  
2013 Lushan Earthquake

The 2013 Lushan earthquake: Implications for seismic hazards posed by the Range Front blind thrust in the Sichuan Basin, China

Geology ◽  
2014 ◽  
Vol 42 (10) ◽  
pp. 915-918 ◽  
Author(s):  
Maomao Wang ◽  
Dong Jia ◽  
John H. Shaw ◽  
Judith Hubbard ◽  
Andreas Plesch ◽  
...  
Keyword(s):  
Sichuan Basin ◽  
Seismic Hazards ◽  
Lushan Earthquake ◽  
Blind Thrust ◽  
The Sichuan Basin ◽  
2013 Lushan Earthquake

scholarly journals Urgent landslide susceptibility assessment in the 2013 Lushan earthquake-impacted area, Sichuan Province, China

2014 ◽  
Vol 75 (3) ◽  
pp. 2467-2487 ◽  
Author(s):  
Zhi-hua Yang ◽  
Heng-xing Lan ◽  
Xing Gao ◽  
Lang-ping Li ◽  
Yun-shan Meng ◽  
...  
Keyword(s):  
Landslide Susceptibility ◽  
Sichuan Province ◽  
Lushan Earthquake ◽  
Susceptibility Assessment ◽  
Landslide Susceptibility Assessment ◽  
2013 Lushan Earthquake

scholarly journals Erratum to: The characteristics of shear wave splitting in the source region of the April 20, 2013 Lushan earthquake

2014 ◽  
Vol 27 (3) ◽  
pp. 351-351
Author(s):  
Sha Liu ◽  
Jiansi Yang ◽  
Baofeng Tian ◽  
Yu Zheng ◽  
Xudong Jiang ◽  
...  
Keyword(s):  
Shear Wave ◽  
Source Region ◽  
Shear Wave Splitting ◽  
Lushan Earthquake ◽  
Wave Splitting ◽  
2013 Lushan Earthquake
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