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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

  1. Department of Civil and Structural Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
  2. Institute of Geological & Nuclear Sciences, P.O. Box 30 368, Gracefield, Lower Hutt, New Zealand
  3. 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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Copyright 2009 IEM. Journal of Earthquake Engineering and Engineering Vibration. All Rights Reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as described below, without written permission from the Publisher. Copying of articles is not permitted except for personal and internal use, to the extent permitted by national copyright law, or under the terms of a license issued by the National Reproduction Rights Organization of China.