Site characterization is a crucial component in assessing seismic hazard, typically involving in situ shear-wave velocity (V_S) depth profiling, and measurement of site amplification including site period. Noninvasive methods are ideal for soil sites and become challenging in terms of field logistics and interpretation in more complex geologic settings including rock sites. Multiple noninvasive active- and passive-seismic techniques are applied at 25 seismograph stations across Eastern Canada. It is typically assumed that these stations are installed on hard rock. We investigate which site characterization methods are suitable at rock sites as well as confirm the hard rock assumption by providing V_S profiles. Active-source compression-wave refraction and surface wave array techniques consistently provide velocity measurements at rock sites; passive-source array testing is less consistent but it is our most suitable method in constraining the rock V_S. Bayesian inversion of Rayleigh wave dispersion curves provides quantitative uncertainty in the rock V_S. We succeed in estimating rock V_S at 16 stations, with constrained rock V_S estimates at 7 stations that are consistent with previous estimates for Precambrian and Paleozoic rock types. The National Building Code of Canada uses solely the time-averaged shear-wave velocity of the upper 30 m (V_S30) to classify rock sites. We determine a mean V_S30 of ∼ 1600 m/s for 16 Eastern Canada stations; the hard rock assumption is correct (>1500 m/s) but not as hard as often assumed (∼2000 m/s). Mean variability in V_S30 is ∼400 m/s and can lead to softer rock classifications, in particular, for Paleozoic rock types with lower average rock V_S near the hard/soft rock boundary. Microtremor and earthquake horizontal-to-vertical spectral ratios are obtained and provide site period classifications as an alternative to V_S30.

现场表征是评估地震危险性的关键组成部分，通常涉及就地剪切波速（V _S）深度剖析以及现场放大倍数（包括现场周期）的测量。非侵入性方法是土壤场所的理想选择，并且在包括岩石场所在内的更复杂的地质环境中，在野外物流和解释方面都具有挑战性。加拿大东部的25个地震台站采用了多种非侵入式主动和被动地震技术。通常假定这些站点安装在坚硬的岩石上。我们调查了哪些场地表征方法适用于岩石场地，并通过提供V _S来确认硬岩假设个人资料。有源震源压缩波折射和表面波阵列技术始终如一地提供岩石位置的速度测量。无源阵列测试的一致性较差，但这是我们最适合限制岩石V _S的方法。瑞利波频散曲线的贝叶斯反演提供了岩石V _S的定量不确定性。我们估计岩石成功V_小号在16个车站，有约束的摇滚V_小号估计在7个站是与之前的估计为前寒武纪与古生代的岩石类型相一致。加拿大国家建筑规范仅使用了30 m（V _S30）对岩石场所进行分类。我们确定加拿大东部16个站点的平均V _{S 30}为1600 m / s。硬岩假设是正确的（> 1500 m / s），但不像通常假设的那样硬（〜2000 m / s）。V _{S 30的}平均变化量约为400 m / s，可以导致较软的岩石分类，特别是对于硬/软岩石边界附近平均岩石V _S较低的古生代岩石类型。获得了微震和地震的水平与垂直光谱之比，并提供了站点周期分类作为V _{S 30}的替代方案。