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TitleRegional centroid moment tensor solutions for eastern Canadian earthquakes: 2011-2013
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorBent, A L
SourceGeological Survey of Canada, Open File 7726, 2015, 71 pages, Open Access logo Open Access
PublisherNatural Resources Canada
Documentopen file
Mediaon-line; digital
RelatedThis publication is related to the following publications
File formatpdf
ProvinceOntario; Quebec; Newfoundland and Labrador; Nunavut; Eastern offshore region
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 42; 43; 44; 45; 46; 47; 48; 49; 120; 340
Lat/Long WENS -95.0000 -45.0000 85.0000 40.0000
Subjectsgeophysics; earthquakes; earthquake studies; earthquake foci; seismographs; seismicity; seismic velocities
Illustrationslocation maps; graphs; plots; tables
ProgramCanadian Hazard Information Service
Released2015 07 21
AbstractRegional centroid moment tensor solutions have been determined for twenty-eight moderate-sized earthquakes in eastern Canada for the period 2011-2013. Three other earthquakes were evaluated but good quality solutions could not be obtained. The moment tensor inversion method is used to determine the focal mechanism, depth and seismic moment of the earthquakes. These parameters, in turn, provide information about the seismotectonic environment in which the earthquakes occur and may help improve seismic hazard estimates. The purpose of this paper is not to provide an in-depth analysis of any specific earthquake but to catalog the solutions and data used to obtain them to make them available for future research projects.
Summary(Plain Language Summary, not published)
This report summarizes regional centroid moment tensor solutions for eastern Canadian earthquakes of magnitude 4.0 or greater for the period 2011-2013. These solutions provide focal mechanism (fault orientation and slip direction), depth and seismic moment (best measure of earthquake size), all of which have implications for seismic hazard and help improve our understanding of the seismotectonic environment in which the earthquakes occur. These solutions are expected to provide input into future research projects.

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