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TitreSoil amplification in Ottawa from urban strong ground motion records
TéléchargerTéléchargements
AuteurAdams, J
SourceProceedings of the 9th Canadian Conference on Earthquake Engineering; 2007 p. 379-389, https://doi.org/10.4095/223220
Année2007
Séries alt.Commission géologique du Canada, Contributions aux publications extérieures 20060523
Séries alt.Secteur des sciences de la Terre, produit d'information général 45
ÉditeurCanadian Association of Earthquake Engineering |a Ottawa, ON, Canada (Ottawa, ON, Canada)
Réunion9th Canadian Conference on Earthquake Engineering; Ottawa, ON; CA; juin 26-29, 2007
Documentlivre
Lang.anglais
DOIhttps://doi.org/10.4095/223220
MediaCD-ROM; en ligne; numérique
Formatspdf (Adobe® Reader®)
ProvinceOntario
SNRC31G/05
Lat/Long OENS-76.0000 -75.5000 45.5000 45.2500
Sujetsinterpretations sismiques; sismicité; risque sismique; vitesse des ondes sismiques; séismologie; séismologie des secousses fortes; risque de tremblement de terre; secousses séismiques; géophysique
Illustrationslocation maps; photographs; graphs; plots; seismograms
ProgrammeService d'information sur les dangers naturels au Canada
Résumé(disponible en anglais seulement)
A strong motion network, established in Ottawa in the winter of 2002, was expanded with additional ETNA and IA (Internet Accelerometer) instruments in 2004-2005. It has now recorded weak motions from three earthquakes: M5.0 (Au Sable Forks, 20020429) at 180 km, M4.7 (Charlevoix, 20050306) at 525 km and M4.0 (Thurso, 20060225) at 32-56 km distance. The records have been analysed using site-to-reference spectral ratio and H/V spectral ratio methods and show significant amplification and sharp resonance peaks at the thick soil sites. Although strong ground motion records are of the greatest value, these weak motion records help to calibrate engineering models in the linear range of soil behaviour.
GEOSCAN ID223220