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Shear wave velocity modelling in crustal rock for seismic hazard analysis

Record type: Article

P-wave velocity data along with the thickness of sedimentary and crystalline layers within bedrock were collected from all global regions and presented in the Global Crustal Model CRUST2.0, published in 2001. This well-organised database provides invaluable potential contributions towards future seismic hazard modelling, particularly for stable continental regions (SCRs), where there is a scarcity of representative strong motion records for conventional modelling purposes. The P-wave velocity information presented in CRUST2.0 has been converted herein to S-wave velocity information. The latter is especially important for purposes of seismic hazard modelling. The value of the CRUST2.0 model has therefore been greatly enhanced by the important findings presented and further developed in this paper. By making the best use of available information on crustal conditions, the amplification behaviour of seismic waves affecting a region, an area or a site for any given earthquake scenario may be predicted. The developed methodology, which is intended for worldwide applications, has been illustrated by case studies in which model S-wave velocity profiles were developed for different geological regions within North America. The model profiles were found to be in excellent agreement with field measurements reported for each respective region.

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Citation

Chandler, A. M., Lam, N.T.K. and Tsang, H.H (2004) Shear wave velocity modelling in crustal rock for seismic hazard analysis Soil Dynamics and Earthquake Engineering, 25, (2), pp. 167-185. (doi:10.1016/j.soildyn.2004.08.005).

More information

Published date: December 2004
Keywords: seismic hazard, shear wave velocity, seismological model, crustal effects

Identifiers

Local EPrints ID: 53125
URI: http://eprints.soton.ac.uk/id/eprint/53125
ISSN: 0267-7261
PURE UUID: 7bbcc7c4-84ef-43fd-828f-67e5fa9e067e

Catalogue record

Date deposited: 21 Jul 2008
Last modified: 17 Jul 2017 14:39

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Contributors

Author: A. M. Chandler
Author: N.T.K. Lam
Author: H.H Tsang

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