00000nam 2200000za 4500 9.854730 CaOODSP 20251031142447 cr ||||||||||| 180404s2018 oncbd ob f000 0 eng d CaOODSP eng n-cn-yk M183-2/8293E-PDF Kolaj, M. Ground motions in Yukon from the Tatshenshini-Alsek Park earthquakes of 2017 compared to 2015 Canadian seismic design levels [electronic resource] / M. Kolaj. [Ottawa] : Natural Resources Canada, 2018. 16 p. : charts (some col.), col. maps. Open file ; 8293 Includes bibliographical references (p. 7-8). “The two magnitude 6 earthquakes on May 1, 2017 were felt in the regions of Haines Junction and Whitehorse, YT and minor damage was reported. Five-percent damped spectral accelerations calculated from a seismograph situated near Haines Junction suggest that the first event had stronger ground motions than the second, even though the second had the larger magnitude. In Haines Junction, spectral accelerations reached approximately 1 % to 7.5 % of the 2015 seismic hazard design values (e.g. 3 % at 0.2 s). While the seismograph in Whitehorse was not operational at the time, the predicted motions from the event reached 5 % to 22 % of the design values (e.g. 12 % at 0.2 s for the first event). The higher percentages are largely due to the lower seismic hazard design values for Whitehorse. The results in this work are given for firm ground conditions (site class C), and varying local conditions could amplify or reduce these values”--Abstract, p. 4. gccst Earthquakes gccst Seismology Earthquake resistant design Building laws Canada. Natural Resources Canada. Geological Survey of Canada. Open file (Geological Survey of Canada) 8293. (CaOODSP)9.506878 PDF 2.54 MB https://publications.gc.ca/collections/collection_2018/rncan-nrcan/m183-2/M183-2-8293-eng.pdf 306502