2015 National Building Code Seismic Hazard Calculation

Site: 48.462055N 123.468772W User File Reference: 1938 West Park Lane, View Royal, BC 2019-03-13 20:48 UT

Table of seismic hazard values for 1938 West Park Lane, View Royal, BC, showing spectral acceleration and peak ground motion at various probabilities of exceedance.

Probability of exceedance per annum	0.000404	0.001	0.0021	0.01
Probability of exceedance in 50 years	2 %	5 %	10 %	40 %
Sa (0.05)	0.716	0.510	0.372	0.163
Sa (0.1)	1.095	0.790	0.575	0.251
Sa (0.2)	1.315	0.947	0.695	0.305
Sa (0.3)	1.320	0.949	0.693	0.300
Sa (0.5)	1.173	0.832	0.598	0.246
Sa (1.0)	0.690	0.461	0.314	0.117
Sa (2.0)	0.408	0.264	0.172	0.060
Sa (5.0)	0.128	0.073	0.039	0.012
Sa (10.0)	0.045	0.025	0.013	0.004
PGA (g)	0.588	0.424	0.308	0.132
PGV (m/s)	0.842	0.574	0.395	0.148

Notes: Spectral (Sa(T), where T is the period in seconds) and peak ground acceleration (PGA) values are given in units of g (9.81 m/s²). Peak ground velocity is given in m/s. Values are for "firm ground" (NBCC2015 Site Class C, average shear wave velocity 450 m/s). NBCC2015 and CSAS6-14 values are highlighted in yellow. Three additional periods are provided - their use is discussed in the NBCC2015 Commentary. Only 2 significant figures are to be used. These values have been interpolated from a 10-km-spaced grid of points. Depending on the gradient of the nearby points, values at this location calculated directly from the hazard program may vary. More than 95 percent of interpolated values are within 2 percent of the directly calculated values.

2015 National Building Code Seismic Hazard Calculation

2015 National Building Code Seismic Hazard Calculation

References