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| | Abstract | | As simple and quick methods for site characterization, the array mocitremor survey as well as H/V observation is expected to play an important role in earthquake disaster prevention in China. To study the characteristics and applicability of microtremor survey, we have made microtremor observation over a wide area from the coast to the far inland. The result of field test shown that the microtremor in Shanghai is much similar to that in Kanto Plane, Japan, inferring a high applicability of array microtremor for deep structure survey in the coast area. However, the energy of long period microtremors in Beijing and Tianshui are only some thousandth to some percents of that in Shanghai, inferring that further study on instrument and observation method are needed. |
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