Ground-motion Attenuation Relation from Strong-motion Records of the 2001 Mw 7.7 Bhuj Earthquake Sequence (2001–2006), Gujarat, India

2009 ◽  
Vol 166 (3) ◽  
pp. 451-469 ◽  
Author(s):  
Prantik Mandal ◽  
N. Kumar ◽  
C. Satyamurthy ◽  
I. P. Raju
2002 ◽  
Vol 15 (6) ◽  
pp. 691-695
Author(s):  
Yong-lin Xu ◽  
Li-jun Xiong ◽  
Chun Zhang ◽  
Zhi-guang Zhao

2012 ◽  
Vol 7 (6) ◽  
pp. 693-700 ◽  
Author(s):  
Saburoh Midorikawa ◽  
◽  
Hiroyuki Miura ◽  
Tomohiro Atsumi

Many strong motion records were obtained during the 2011 Off the Pacific Coast of Tohoku earthquake owing to the implementation of dense strong motion observation in Japan. The earthquake provides an opportunity to examine the characteristics of strong ground motion from a gigantic earthquake. Attenuations of peak acceleration and velocity are examined by comparing them to curves from existing attenuation relationships. When the shortest distance from the fault plane of the slip distribution model is used, curves for Mw8.0 to 8.3 give the smallest deviation from data, suggesting the saturation of ground motion intensity at large magnitudes. When the shortest distance from the strong motion generation areas is used, however, the scattering of data becomes smaller and the curve for Mw9.0 fits acceleration data. Results thus change with the definition of distance. This suggests that a consideration of the rupture heterogeneity is important in strong motion prediction for gigantic earthquakes.


2008 ◽  
Vol 60 (10) ◽  
pp. 1011-1016 ◽  
Author(s):  
Takahiro Maeda ◽  
Masayoshi Ichiyanagi ◽  
Hiroaki Takahashi ◽  
Ryo Honda ◽  
Teruhiro Yamaguchi ◽  
...  

2011 ◽  
Vol 90-93 ◽  
pp. 1639-1643 ◽  
Author(s):  
Wei Li ◽  
Shan You Li ◽  
Jian Qi Lu ◽  
Zhen Zhao

With the continuous research in earthquake engineering, great advances have been made in the theoretical research of ground motion attenuation. A lot of new achievements and views [1,2,3] provide the theoretical basis for the improvement of the ground motion attenuation experience models and the parameter estimation. Additionally, it provides a good environment for deeper study on the ground motion attenuation by the increase of strong motion records and the improvement of pertinent information. In this paper, the improved two-step method is put forward, and the regressed ground motion attenuation coefficients are obtained by the improved models and analysis method. This method not only considers the correlation of magnitude and distance, but also makes the regression coefficients more stable. The results can better show the characteristics of the ground motion attenuation.


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