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Attenuation characteristics of ground motions in northern China
Wong Yuk Lung (黄玉龙)1
, Zhao John X (赵兴权)2
and Luo Qifeng (罗奇峰)3
- Department of Civil and Structural Engineering, The Hong Kong
Polytechnic University, Hung Hom,
Kowloon, Hong Kong, China
- Institute of Geological & Nuclear Sciences, P.O. Box 30 368,
Gracefield, Lower Hutt, New Zealand
- Research Institute of Structural Engineering & Disaster Reduction,
Tongji University, Siping Rd 1239,
Shanghai 200092, China
Abstract: Four recently developed attenuation models are calibrated by
using a very limited amount of strong motion data recorded in China. The
research shows that the attenuation characteristics of the earthquake shaking in
northern China are similar to those in the western US. The supporting evidence
includes Q factors, preliminary results of kappa values, stress drop, shear wave
velocity profile in the shallow earth crust, areas enclosed by the isoseismals
of Modified Mercalli Intensity V. From these comparisons of different
attenuation models, it is recommended that the Crouse and McGuire spectral
attenuation model could possibly be used for northern China.
Keywords: Strong ground motions; response spectra; attenuation model;
western US; northern China
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