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| | Abstract | | In order to study on azimuthal dependency, microtremors were observed in a regular pentagon shape array with the radius of 45 m in the ground of Faculty of Science and Engineering, Iwate University, and the Green functions were calculated from stacked three components cross correlation functions. As a result, obtained vertical Raleigh and Love group velocities were in good agreement with calculated ones, but horizontal Rayleigh ones were not. FK spectra implied the anisotropy of arrival azimuths of horizontal radial microtremors. |
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