Fig. 14From: Directionally dependent horizontal-to-vertical spectral ratios of microtremors at Onahama, Fukushima, JapanComparison of the observed MHVRs (solid blue and red lines) with the numerical MHVRs (broken blue and red lines) for points E2, C3 and F4. There is effectively no difference between NS/UD and EW/UD for points E2 and E4, and the numerical MHVRs fit the observed ones. As for point C3, the numerical MHVRs show the same directional dependence as the observedBack to article page