Show simple item record

dc.contributor.authorAsgharzadeh Sadegh, Parisa
dc.contributor.otherQueen's University (Kingston, Ont.). Theses (Queen's University (Kingston, Ont.))en
dc.date2012-06-15 19:46:15.691en
dc.date.accessioned2012-06-19T20:07:16Z
dc.date.available2012-06-19T20:07:16Z
dc.date.issued2012-06-19
dc.identifier.urihttp://hdl.handle.net/1974/7280
dc.descriptionThesis (Master, Geological Sciences & Geological Engineering) -- Queen's University, 2012-06-15 19:46:15.691en
dc.description.abstractEarthquakes in western Quebec and southern Ontario present a major contribution to the natural hazards in south eastern Canada due to their proximity to major population centres. However, the seismic characteristics of the events in these regions have not been well documented. Improved knowledge of earthquake distribution and seismic controlling mechanisms provides a great benefit for earthquake hazard analysis in eastern Canada. The available information about the tectonic stress indicators, including focal mechanisms, was compiled for Canada prior to 1994. The present research is concentrated mainly on determination of the focal mechanisms and hypocentre locations of the earthquakes after 1993 with M > 3.5 to characterize the present-day regional and local stress fields in southern Ontario and western Quebec. An attempt was also made to differentiate local zones with comparatively homogeneous tectonic stresses orientation and seismic regimes, thus providing information for future re-assessment of the seismic hazard in each region. Considering seismic parameters such as the trend of the epicentres, focal depths and the state of stress of the events along with their tectonic settings, ten distinct clusters have been proposed for western Quebec and two clusters of events were determined for southern Ontario with comparatively consistent focal mechanisms. The locations and characteristics of seismicity clusters appear to be consistent with the hypothesis that they are near the locations of large historic and prehistoric events, and represent exceptionally persistent aftershocks of past large earthquakes.en_US
dc.languageenen
dc.language.isoenen_US
dc.relation.ispartofseriesCanadian thesesen
dc.rightsThis publication is made available by the authority of the copyright owner solely for the purpose of private study and research and may not be copied or reproduced except as permitted by the copyright laws without written authority from the copyright owner.en
dc.subjectEarth scienceen_US
dc.subjectGeophysicsen_US
dc.titleFOCAL MECHANISMS AND VARIATIONS IN TECTONIC STRESS FIELDS IN EASTERN CANADA (WESTERN QUEBEC AND SOUTHERN ONTARIO)en_US
dc.typethesisen_US
dc.description.degreeMasteren
dc.contributor.supervisorGodin, Laurenten
dc.contributor.supervisorDineva, Savkaen
dc.contributor.departmentGeological Sciences and Geological Engineeringen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record