�@ Œf�ÚŽGŽ��i˜a�j�F “ú–{’n�k�HŠwƒVƒ“ƒ|ƒWƒEƒ€�u‰‰�W Vol�F 6Šª ”N�F 1982”N •Å�F 481-488•Å ’˜ŽÒ�i˜a�j�F - ƒ^ƒCƒgƒ‹�i˜a�j�F - �´˜^�i˜a�j�F
- ƒL�[ƒ��[ƒh�i˜a�j�F - Œf�ÚŽGŽ��i‰p�j�F PROCEEDINGS OF JAPAN EARTHQUAKE ENGINEERING SYMPOSIUM ’˜ŽÒ�i‰p�j�F Makoto KAMIYAMA, Tadashi MATSUKAWA ƒ^ƒCƒgƒ‹�i‰p�j�F RELATIONS BETWEEN EARTHQUAKE MOTION INTENSITIES AND MICROTREMORS OF GROUNDS �´˜^�i‰p�j�F
The objective of this paper is to investigate possible correlations between the shaking intensities obtained during the 1978 Miyagiken-oki earthquake and their microtremors. In order to accomplish this purpose, a map showing the shaking intensities was examined and field measurements of microtremor ground motions were carried out at some sites in Sendai city. In addition to these analyses, a strong-motion earthquake accelerogram was investigated to discuss deeply. The microtremor motions were analyzed in terms of Fourier spectrum, rms value, and so on. It is concluded that a good correlation was found between the microtremor characteristics and the shaking intensities. A little discussion was also made about the reason leading such a conclusion. ƒL�[ƒ��[ƒh�i‰p�j�F - ‹LŽ–‹æ•ª�F - ‹æ•ª �@�@�@ˆÏˆõ‰ï˜_•¶�W