Abstract
The present study concerns the application of microtremor array observation to the evaluation of average S-wave velocity of the ground. Twenty-two sites were picked up for the study, at which distributions of S-wave velocity were known. Average S-wave velocities estimated with the microtremor observation have been compared with those obtained by the elastic wave exploration; the result shows very good coincidence. It is concluded that from the viewpoint of easiness and cost-effectiveness, microtremor measurement is highly applicable to the evaluation of S-wave distribution of the ground, which is essential for earthquake resistant design of the structures and seismic zonation.
