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TitleKnowledge of in-slab earthquakes needed to improve seismic hazard estimates for southwestern British Columbia
DownloadDownload (whole publication)
AuthorAdams, J; Halchuk, S
SourceThe Cascadia subduction zone and related subduction systems - seismic structure, intraslab earthquakes and processes, and earthquake hazards; by Kirby, S (ed.); Wang, K (ed.); Dunlop, S (ed.); Geological Survey of Canada, Open File 4350, 2002 p. 149-154, https://doi.org/10.4095/222542 (Open Access)
LinksOnline - En ligne
Year2002
Alt SeriesUnited States Geological Survey, Open-file Report 02-328
PublisherNatural Resources Canada
MeetingIntraslab Earthquakes in the Cascadia Subduction System: Science and Hazards; Victoria; CA; September 18-21, 2000
Documentopen file
Lang.English
Mediaon-line; digital
RelatedThis publication is contained in Kirby, S; Wang, K; Dunlop, S; (2002). The Cascadia subduction zone and related subduction systems - seismic structure, intraslab earthquakes and processes, and earthquake hazards, Geological Survey of Canada, Open File 4350
File formatpdf
ProvinceWestern offshore region
NTS92A; 92B
AreaGeorgia Strait; Puget Sound; Juan de Fuca Sound; United States; Canada
Lat/Long WENS-126.0000 -122.0000 49.0000 47.0000
Subjectstectonics; geophysics; subduction zones; plate tectonics; tectonic elements; tectonic environments; tectonic interpretations; plate motions; subduction; lithosphere; oceanic lithosphere; earthquake mechanisms; earthquake studies; earthquakes; seismicity; earthquake risk; earthquake magnitudes; mantle; Cascadia Subduction Zone; Juan de Fuca Plate; Cascadia Forearc; geological hazards; intraslab earthquakes
Illustrationssketch maps; graphs
Released2002 06 11; 2016 08 31
AbstractIn-slab earthquakes (earthquakes within the subducting Juan de Fuca plate) make the major contribution to seismic hazard for the Strait of Georgia region of British Columbia. These earthquakes dominate the hazard, despite their depth, because they have a higher rate and cause stronger shaking than the crustal earthquakes. Key knowledge of in-slab earthquakes needed to improve seismic hazard estimates for southwestern British Columbia includes the constraints on the spatial distribution, rate and maximum size of the earthquakes, the ground motions to be expected, the nature of the earthquake sources and the structure and properties of the lithosphere through
which the waves propagate.
GEOSCAN ID222542