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Article: Regional differences in attenuation modelling for Eastern China

TitleRegional differences in attenuation modelling for Eastern China
Authors
KeywordsAttenuation
Eastern China
Intensity
Quality (Q) factor
Seismological model
Soil site
Issue Date2010
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaes
Citation
Journal Of Asian Earth Sciences, 2010, v. 39 n. 5, p. 441-459 How to Cite?
AbstractThis paper describes the development of seismological models for three sub-regions within Eastern China. An important feature of the modelling is that two main types of local data were used to determine parameters for input into the seismological model. Shear wave velocity data was used in Step One of the procedure for deriving the upper crustal factors which are part of the seismological model. Two further steps were involved in incorporating the historical Intensity (MMI) data into the modelling. In Step Two, the simulated peak ground velocity (PGV) values were converted to MMI values, and site factor was calculated by dividing the inferred PGV value by the respective simulated PGV value for each given (short distance) earthquake scenario. In Step Three, the quality (Q) factor of the seismological model for each sub-region was calibrated in accordance with the criterion that site factors inferred from records of long distance earthquakes in the database match with the median site factor obtained in Step Two for short distance earthquakes. Importantly, the Q values obtained by this calibration method were highly consistent with Coda Q values (obtained for each sub-region from a previous study by Jin and Aki based on analysing records of local earth tremors). The calibrated Q values in combination with the developed crustal factors and geometrical attenuation factor constitute the regional seismological model for Eastern China. The seismological model so developed takes into account intra-regional differences and has been used to simulate strong ground motions by the stochastic method for assessing the potential seismic hazards in the region. © 2010 Elsevier Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/139085
ISSN
2015 Impact Factor: 2.647
2015 SCImago Journal Rankings: 1.393
ISI Accession Number ID
Funding AgencyGrant Number
University Research Committee (URC) of The University of Hong Kong200707176078
Funding Information:

This work was supported by the Small Project Funding from the University Research Committee (URC) of The University of Hong Kong (Project No. 200707176078), whose support is gratefully acknowledged.

References

 

DC FieldValueLanguage
dc.contributor.authorTsang, HHen_HK
dc.contributor.authorSheikh, MNen_HK
dc.contributor.authorLam, NTKen_HK
dc.contributor.authorChandler, AMen_HK
dc.contributor.authorLo, SHen_HK
dc.date.accessioned2011-09-23T05:44:51Z-
dc.date.available2011-09-23T05:44:51Z-
dc.date.issued2010en_HK
dc.identifier.citationJournal Of Asian Earth Sciences, 2010, v. 39 n. 5, p. 441-459en_HK
dc.identifier.issn1367-9120en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139085-
dc.description.abstractThis paper describes the development of seismological models for three sub-regions within Eastern China. An important feature of the modelling is that two main types of local data were used to determine parameters for input into the seismological model. Shear wave velocity data was used in Step One of the procedure for deriving the upper crustal factors which are part of the seismological model. Two further steps were involved in incorporating the historical Intensity (MMI) data into the modelling. In Step Two, the simulated peak ground velocity (PGV) values were converted to MMI values, and site factor was calculated by dividing the inferred PGV value by the respective simulated PGV value for each given (short distance) earthquake scenario. In Step Three, the quality (Q) factor of the seismological model for each sub-region was calibrated in accordance with the criterion that site factors inferred from records of long distance earthquakes in the database match with the median site factor obtained in Step Two for short distance earthquakes. Importantly, the Q values obtained by this calibration method were highly consistent with Coda Q values (obtained for each sub-region from a previous study by Jin and Aki based on analysing records of local earth tremors). The calibrated Q values in combination with the developed crustal factors and geometrical attenuation factor constitute the regional seismological model for Eastern China. The seismological model so developed takes into account intra-regional differences and has been used to simulate strong ground motions by the stochastic method for assessing the potential seismic hazards in the region. © 2010 Elsevier Ltd.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/jseaesen_HK
dc.relation.ispartofJournal of Asian Earth Sciencesen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of Asian Earth Sciences. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Asian Earth Sciences, 2010, v. 39 n. 5, p. 441-459. DOI: 10.1016/j.jseaes.2010.04.004-
dc.subjectAttenuationen_HK
dc.subjectEastern Chinaen_HK
dc.subjectIntensityen_HK
dc.subjectQuality (Q) factoren_HK
dc.subjectSeismological modelen_HK
dc.subjectSoil siteen_HK
dc.titleRegional differences in attenuation modelling for Eastern Chinaen_HK
dc.typeArticleen_HK
dc.identifier.emailLo, SH:hreclsh@hkucc.hku.hken_HK
dc.identifier.authorityLo, SH=rp00223en_HK
dc.description.naturepostprint-
dc.identifier.doi10.1016/j.jseaes.2010.04.004en_HK
dc.identifier.scopuseid_2-s2.0-77954144316en_HK
dc.identifier.hkuros195761en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77954144316&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume39en_HK
dc.identifier.issue5en_HK
dc.identifier.spage441en_HK
dc.identifier.epage459en_HK
dc.identifier.isiWOS:000280568800009-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridTsang, HH=10145057100en_HK
dc.identifier.scopusauthoridSheikh, MN=8399428100en_HK
dc.identifier.scopusauthoridLam, NTK=7101750717en_HK
dc.identifier.scopusauthoridChandler, AM=7102635839en_HK
dc.identifier.scopusauthoridLo, SH=7401542444en_HK
dc.identifier.citeulike7085182-

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