| Titre | Strong motion seismograph networks, data, and research in Canada |
| |
| Auteur | Cassidy, J F ;
Rosenberger, A; Rogers, G C |
| Source | Proceedings of the 14th World Conference on Earthquake Engineering; 2008 p. 1-8 |
| Année | 2008 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20070319 |
| Réunion | 14th World Conference on Earthquake Engineering; Beijing; CN; Octobre 13-17, 2008 |
| Document | livre |
| Lang. | anglais |
| Media | CD-ROM; numérique |
| Référence reliée | Cette publication est reproduite dans Strong
motion seismograph networks, data, and research in Canada |
| Formats | pdf |
| Province | Canada; Colombie-Britannique; Alberta; Saskatchewan; Manitoba; Ontario; Québec; Nouveau-Brunswick; Nouvelle-Écosse; Île-du-Prince-Édouard; Terre-Neuve-et-Labrador; Territoires du Nord-Ouest; Yukon;
Nunavut; Canada |
| SNRC | 1; 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; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65;
66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560 |
| Lat/Long OENS | -141.0000 -50.0000 90.0000 41.7500 |
| Sujets | séismologie; séismologie des secousses fortes; réseau sismique; sismographes; géologie urbaine; planification urbaine; secousses séismiques; techniques de cartographie; surveillance; géophysique; Sciences
et technologie; Nature et environnement; Santé et sécurité |
| Illustrations | cartes de localisation; tableaux |
| Programme | Réduction des risques dus aux aléas naturels |
| Diffusé | 2008 01 01 |
| Résumé | (disponible en anglais seulement)
Strong motion monitoring has undergone a revolution in Canada in recent years. Most analogue,non-communicating instruments have been replaced with modern
digital instruments that provideinformation in real-time. Dense networks are being deployed in the urban centres of southwest BritishColumbia to provide shaking parameters and "shake maps" immediately after an earthquake.Monitoring of critical
infrastructure, including bridges, dam sites and transmission facilities is increasing. This article documents the current state of strong motion monitoring across Canada, andsummarises the data sets that are currently available. As of 2008, the
Geological Survey of Canada operates 110 strong motion instruments (Internet Acclerometers or IA's) across Canada, most of whichare deployed in the urban centres of high seismic hazard in southwest British Columbia. Partnerorganisations operate an
additional 70 strong motion instruments monitoring critical infrastructure inwestern Canada. In eastern Canada, the GSC operates a network of 18 strong motion instruments inthe active Charlevoix zone, and 6 IA's in greater Ottawa. Partner
organisations operate instruments atan additional 15 sites. During the past decade, more than 700three component accelerograms have been recorded across Canada. While some large ground motions have been recorded (peak groundacceleration (PGA) greater
than 2g), most of the records represent weak motion (PGA less than 5%g).These are useful for evaluating local site response, which in turn will be valuable to engineersevaluating strong ground shaking during future earthquakes. |
| GEOSCAN ID | 327402 |
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