| Title | Dense strong motion seismograph networks in Canada: opportunities and applications. |
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| Author | Cassidy, J F ;
Rosenberger, A; Rogers, G C; Huffman, S |
| Source | American Geophysical Union, Fall Meeting 2010, abstract volume; 2010, 1 pages |
| Year | 2010 |
| Alt Series | Earth Sciences Sector, Contribution Series 20100165 |
| Meeting | 2010 Fall AGU Meeting; San Francisco, CA; US; December 13-17, 2010 |
| Document | book |
| Lang. | English |
| Media | on-line; digital |
| Province | British Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut; Canada |
| NTS | 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 WENS | -141.0000 -50.0000 90.0000 41.7500 |
| Subjects | geophysics; engineering geology; seismicity; seismic risk; seismic interpretations; earthquakes; earthquake risk; earthquake studies; earthquake catalogues; seismographs; seismological network;
seismology; strong motion seismology |
| Program | Public Safety Geoscience Targeted Hazard Assessments in Western Canada |
| Released | 2010 01 01 |
| Abstract | Strong motion monitoring has undergone a revolution in Canada in recent years. Most analogue, non-communicating instruments have been replaced with modern, smart digital instruments that provide
information in real-time. These new instruments have on-board computing capabilities and can serve multiple purposes when connected in networks with fast Internet based telemetry. As of 2010, the Geological Survey of Canada operates 110 strong motion
instruments (Internet Acclerometers or IA=s) across Canada, most of which are deployed in or near the urban centres of high seismic hazard in southwest British Columbia. Partner organisations operate an additional 70 strong motion instruments
monitoring critical infrastructure in western Canada. These instruments and data serve multiple purposes: 1. They help to fill the still sparse data-base of strong ground motions required for seismic engineering and hazard and risk assessment in
general. 2. Recordings of small, moderate (and large) earthquakes can be utilised for earthquake site response studies - mapping the variation in shaking across urban areas and the effects of surface geology, sedimentary basins, and topography. 3.
They contribute to the development of real-time warning systems. 4. They contribute to situational awareness after a major earthquake (e.g., shaking maps). 5. Their data can be integrated with structural monitoring systems to aide in the rapid
assessment of critical infrastructure and life lines in the aftermath of a large earthquake. These applications require a sufficiently high density of stations in a high earthquake risk area and as well a new type of smart instrument which can
provide a tailored parameter set describing the nature and severity of earthquake ground motion in real time and in a form suitable as input for engineering models. The real time transmittal of data into easily accessible displays can facilitate post
earthquake response and inspection, and can enable emergency funding agencies to focus recovery efforts. Here, we provide an overview of how the strong motion network in the high-risk region of southwest British Columbia operates and present some
examples of new opportunities and applications. |
| GEOSCAN ID | 286225 |
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